Rock climbing machine comprising an elastic cord

Abstract

The present invention refers to a rock climbing machine provided with elastic cords, comprising a bracket, a left grab rail, and a right grab rail, wherein the bracket comprises a front bracket, a rear bracket, and a guide bracket; the guide bracket is connected to an upper end of the front bracket. The rear bracket is connected to the guide bracket or the front bracket; which is provided by two parallel rails; one left and one right. The equipment also includes a left sliding member connected to the left guide rail, and to a left pedal; a traction rope is connected across the front pulley; one end of the traction rope is connected to the left sliding member, and the other end of the traction rope is connected to the right sliding member; a left elastic cord, that pass between, two left first guide wheels; one end of the left elastic cord is connected to the left grab rail, and the other end of the left elastic drag is connected to the bracket and; the right elastic cord passes through between the two right first guide wheels; and one end of the right elastic cord is connected to the right grab rail, and the other end of the right elastic cord is connected to the bracket. The equipment of the present invention can vary the magnitude of the force to be applied to the pedal, by changing the amount of stretch of the elastic cord, in order to adjust the intensity of the exercise.

1 . A rock climbing machine provided with elastic cords, comprising a bracket, a left grab rail, and a right grab rail, wherein the bracket comprises a front bracket, a rear bracket, and a guide bracket; the guide bracket is connected to an upper end of the front bracket; the rear bracket is connected to the guide bracket or the front bracket; the front bracket is provided with a left guide rail and a right guide rail that are parallel; the left guide rail is connected to a left sliding member, and the left sliding member is connected to a left pedal; the left grab rail passes through the guide bracket, and a lower end of the left grab rail is connected to the left sliding member; the right guide rail is connected to a right sliding member, and the right sliding member is connected to a right pedal; the right grab rail also passes through the guide bracket, and a lower end of the right grab rail is connected to the right sliding member; a pulley is installed on the front bracket or the rear bracket; a traction rope is connected across the pulley; and one end of the traction rope is connected to the left sliding member, and the other end of the traction rope is connected to the right sliding member; and further comprising a left elastic cord, a right elastic cord, two left first guide wheels, and two right first guide wheels, wherein the two left first guide wheels are close to each other and are installed at a rear upper portion of the bracket side by side; the two right first guide wheels are also close to each other and are installed at the rear upper portion of the bracket side by side; the left elastic cord passes through between the two left first guide wheels; one end of the left elastic cord is connected to the left grab rail, and the other end of the left elastic drag is connected to the bracket; the right elastic cord passes through between the two right first guide wheels; and one end of the right elastic cord is connected to the right grab rail, and the other end of the right elastic cord is connected to the bracket. 
     
     
         2 . The rock climbing machine provided with elastic cords according to  claim 1 , wherein the guide bracket is installed with three parallel second guide wheels, and the left grab rail and right grab rail respectively pass through two adjacent second guide wheels. 
     
     
         3 . The rock climbing machine provided with elastic cords according to  claim 1 , wherein a rear portion of the guide bracket extends backward two side boards; an upper portion of the rear bracket is located between the two side boards; and the rear bracket is connected to the two side boards by means that a latch passes through the upper portion of the rear bracket and the two side boards. 
     
     
         4 . The rock climbing machine provided with elastic cords according to  claim 3 , wherein two support pin shafts whose axes are horizontally disposed are fixedly connected on the two side boards; one left first guide wheel and one right first guide wheel are both sleeved on one of the support pin shafts; and the other left first guide wheel and the other right first guide wheel are both sleeved on the other one of the support pin shafts. 
     
     
         5 . The rock climbing machine provided with elastic cords according to  claim 4 , wherein a center of each support pin shaft is provided with a through hole, and is further perforated with a bolt; and the bolt further passes through the two side boards to fixedly connect each support pin shaft between the two side boards. 
     
     
         6 . The rock climbing machine provided with elastic cords according to  claim 4 , wherein the two support pin shafts are disposed in an up-and-down manner; an intermediate portion of an upper support pin shaft is further sleeved with a distance sleeve, wherein the distance sleeve separates the left first guide wheel from the right first guide wheel; and an intermediate portion of a lower support pin shaft further passes through the upper portion of the rear bracket. 
     
     
         7 . The rock climbing machine provided with elastic cords according to  claim 3 , wherein the upper portion of the rear bracket is provided with a U-shaped frame; the pulley is installed on the U-shaped frame; rear lower ends of the two side boards separately extend a limiting protrusion towards a side close to the rear bracket; both sides of the upper portion of the rear bracket are respectively provided with two limiting blocks; each limiting block cooperates with the limiting protrusion; and the latch passes through the two limiting blocks. 
     
     
         8 . The rock climbing machine provided with elastic cords according to  claim 1 , wherein the left sliding member is installed with multiple third guide wheels; the left sliding member is clamped on the left guide rail by using the multiple third guide wheels; the left pedal is hingedly connected to an upper portion of the left sliding member; the right sliding member is installed with multiple third guide wheels; the right sliding member is clamped on the left guide rail by using the multiple third guide wheels; and the right pedal is hingedly connected to an upper portion of the right sliding member. 
     
     
         9 . The rock climbing machine provided with elastic cords according to  claim 1 , wherein an intermediate rear portion of the left grab rail is installed with a left rotation wheel; one end of the left elastic cord is provided with a rope hitch that is sleeved on the left rotation wheel; an intermediate rear portion of the right grab rail is installed with a right rotation wheel; and one end of the left elastic cord is provided with a rope hitch that is sleeved on the right rotation wheel. 
     
     
         10 . The rock climbing machine provided with elastic cords according to  claim 1 , wherein one side of an intermediate lower portion of the rear bracket is provided with multiple left hooking portions from top to bottom; one end of the left elastic cord is fixedly connected to a left hook and is optionally connected to one left hooking portion; the other side of the intermediate lower portion of the rear bracket is provided with multiple right hooking portions from top to bottom; and one end of the right elastic cord is fixedly connected to a right hook and is optionally connected to one right hooking portion.