Exercise equipment with dual fans for changing fluid resistance

Abstract

The present invention is to provide an exercise equipment with dual fans for changing fluid resistance, which includes a housing, two fans and two driving members. The housing forms a receiving cavity therein for receiving fluid. Each fan includes a shaft pivotally provided at a central position of the housing and driven by a driven wheel and a plurality of vanes each fixedly provided on the periphery of the shaft and received in the receiving cavity. The driven wheels can drive the corresponding vanes to rotate about the corresponding shafts, thereby causing the fluid in the receiving cavity to form vortices. The driving members are movably provided outside the housing and connected with the corresponding driven wheels respectively by a link assembly. When the driving members are pushed or pulled, the link assemblies drive the corresponding driven wheels respectively and thereby drive the shafts to rotate with the driven wheels.

1 . An exercise equipment with dual fans for changing fluid resistance, comprising:
 a housing formed therein with a receiving cavity for receiving fluid;   two fans provided in the receiving cavity, each said fan comprising a shaft and a plurality of vanes, the vanes of each said fan being distributed around and fixed to a periphery of a corresponding said shaft and being adjacent to one of two opposite lateral sides of the housing, each said shaft being pivotally connected to a central position of one said lateral side of the housing and provided with a driven wheel, each said driven wheel being configured to drive a corresponding said shaft into rotation such that corresponding said vanes are rotated about a rotation axis defined by the shaft, thereby causing the fluid in the receiving cavity to form vortices; and   two driving members movably provided outside the housing and configured to be pushed and pulled reciprocally outside the housing, there being a link assembly between each said driving member and a corresponding said driven wheel, the link assemblies being configured to drive the driven wheels respectively and thereby cause the shafts to rotate with the driven wheels respectively when the driving members are pushed or pulled.   
     
     
         2 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 an axle having a first end and a second end, wherein the first end is connected to a corresponding said driven wheel and configured to drive the driven wheel into rotation, and the second end passes through the housing and is exposed on the housing;   a driving wheel connected to the second end of the axle and configured to drive the axle into rotation;   a directional wheel unit connected to the driving wheel and configured to drive the driving wheel into rotation; and   at least a cable wound around the directional wheel unit and connected to two opposite ends of a corresponding said driving member, wherein the at least a cable is displaced and thereby drives the directional wheel unit into rotation when the driving member is pushed or pulled.   
     
     
         3 . The exercise equipment of  claim 2 , wherein each said directional wheel unit comprises:
 an upper directional wheel wound with a said cable and configured to drive a corresponding said driving wheel into rotation if and only if the upper directional wheel is rotated in a predetermined direction; and   a lower directional wheel wound with another said cable and configured to drive the driving wheel into rotation if and only if the lower directional wheel is rotated in the predetermined direction.   
     
     
         4 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 at least a rack provided on a corresponding said driving member; and   a driving wheel pivotally connected to the housing at a position adjacent to the driving member and a corresponding said driven wheel and meshing with the at least a rack and the driven wheel respectively, wherein the at least a rack is displaced and thereby drives the driving wheel and hence the driven wheel into rotation when the driving member is pushed or pulled.   
     
     
         5 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 at least a rack provided on a corresponding said driving member;   a belt; and   a driving wheel pivotally connected to the housing at a position adjacent to the driving member and a corresponding said driven wheel, meshing with the at least a rack, and connected to the driven wheel by the belt, wherein the at least a rack is displaced and thereby drives the driving wheel and hence the driven wheel into rotation when the driving member is pushed or pulled.   
     
     
         6 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 a roller installed on a corresponding said driven wheel and configured to drive the driven wheel into rotation; and   at least a cable having a central section wound around a periphery of the roller and two ends fixed respectively to two ends of a corresponding said driving member, wherein the at least a cable is displaced and thereby drives the roller and hence the driven wheel into rotation when the driving member is pushed or pulled.   
     
     
         7 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 a roller installed on a corresponding said driven wheel and configured to drive the driven wheel into rotation; and   two cables wound around a periphery of the roller, each said cable having an end fixed to the roller and an opposite end fixed to one of two opposite ends of a corresponding said driving member, wherein the cables are displaced and thereby rotate the roller and hence the driven wheel into rotation when the driving member is pushed or pulled.   
     
     
         8 . The exercise equipment of  claim 1 , wherein each said link assembly comprises:
 a plurality of pulleys;   a first cable provided on a corresponding said driving member and wound around each said pulley;   a driving wheel around which the first cable is wound, wherein the first cable is displaced to drive each said pulley and thereby drive the driving wheel into rotation when the driving member is pushed or pulled; and   a second cable wound around the driving wheel and a corresponding said driven wheel, wherein the second cable is displaced and thereby drives the driven wheel into rotation when the driving wheel is rotated.   
     
     
         9 . The exercise equipment of  claim 1 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         10 . The exercise equipment of  claim 2 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         11 . The exercise equipment of  claim 3 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         12 . The exercise equipment of  claim 4 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         13 . The exercise equipment of  claim 5 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         14 . The exercise equipment of  claim 6 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         15 . The exercise equipment of  claim 7 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         16 . The exercise equipment of  claim 8 , wherein the housing is composed of two housing portions each having a lateral side concavely provided with a fluid action space, each said housing portion being provided therein with an inner casing, each said inner casing having:
 a fluid storage space defined therein;   a lower side formed with a fluid outlet for bringing the fluid storage space into communication with a corresponding said fluid action space; and   a lateral side which is distant from a corresponding said housing portion and formed with a fluid inlet for bringing the fluid storage space into communication with the fluid action space, the fluid inlet being located at a higher position than the fluid outlet.   
     
     
         17 . The exercise equipment of  claim 9 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         18 . The exercise equipment of  claim 10 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         19 . The exercise equipment of  claim 11 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         20 . The exercise equipment of  claim 12 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         21 . The exercise equipment of  claim 13 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         22 . The exercise equipment of  claim 14 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         23 . The exercise equipment of  claim 15 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         24 . The exercise equipment of  claim 16 , further comprising a watertight washer provided in each said fluid storage space, wherein each said watertight washer is flexible, has a surface portion adjacent to an outer rim of the watertight washer and fixed to the housing, and has a surface portion adjacent to a center of the watertight washer and attached to a corresponding said shaft while still allowing the shaft to rotate with a corresponding said driven wheel. 
     
     
         25 . The exercise equipment of  claim 17 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         26 . The exercise equipment of  claim 18 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         27 . The exercise equipment of  claim 19 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         28 . The exercise equipment of  claim 20 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         29 . The exercise equipment of  claim 21 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         30 . The exercise equipment of  claim 22 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         31 . The exercise equipment of  claim 23 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot. 
     
     
         32 . The exercise equipment of  claim 24 , further comprising a grip pivotally connected by a pivot to an end of each said driving member, each said grip being rotatable about a rotation axis defined by a corresponding said pivot.