Belt buckle

Abstract

A belt buckle comprises an engaging axis, a pressing axis, a pulling axis perpendicular to the engaging axis, a female buckle member, a male buckle member; a holding mechanism disposed between the male buckle member and the female buckle member and disposed on the pulling axis. The female and male buckle member each comprises a connecting portion; an engaging portion. The engaging portion of the female buckle member comprises a bottom surface, an engaging recess, an inner surface; two engaging holes. The engaging portion of the male buckle member comprises two inner pressing components respectively comprising an engaging protrusion. The pulling force of straps mounted on the connecting portions is balanced by the holding mechanism and the combination of the engaging protrusions and the engaging holes when the belt buckle is in use, thereby improving the engaging strength of the male and female buckle members; ensuring the connection between straps.

What is claimed is: 
     
         1 . A belt buckle comprising:
 an engaging axis;   a pressing axis intersecting with the engaging axis;   a pulling axis intersecting with the pressing axis and being perpendicular to the engaging axis;   a female buckle member comprising
 a connecting portion; and 
 an engaging portion connected with the connecting portion, disposed along the pulling axis with the connecting portion, and comprising
 a bottom surface; 
 an engaging recess formed on the bottom surface and extending along the engaging axis; 
 an inner surface surrounding the engaging recess and connected with the bottom surface; and 
 two engaging holes formed through the inner surface and arranged along the pressing axis; 
 
   a male buckle member detachably engaged with the female buckle member, located at a bottom side of the female buckle member, and comprising
 a connecting portion; and 
 an engaging portion connected with the connecting portion of the male buckle member, disposed along the pulling axis with the connecting portion of the male buckle member, and comprising
 two inner pressing components disposed along the pressing axis and respectively disposed on two sides of the engaging portion of the male buckle member, each of the inner pressing components comprising 
 an engaging protrusion permanently positioned in each of the engaging holes; and 
 
   a holding mechanism disposed on the pulling axis and between the male buckle member and the female buckle member, wherein the engaging portion of the male buckle member is embedded in the engaging recess.   
     
     
         2 . The belt buckle as claimed in  claim 1 , wherein the holding mechanism comprises
 a holding recess formed between the connecting portion of the male buckle member and the engaging portion of the male buckle member, and the holding recess extending along the engaging axis; and   a holding block detachably embedded in the holding recess, wherein the holding block is disposed on the engaging portion of the female buckle member, and extends along the engaging axis.   
     
     
         3 . The belt buckle as claimed in  claim 1 , wherein the holding mechanism comprises
 a holding recess formed on the engaging portion of the female buckle member; and   a holding block detachably embedded in the holding recess, wherein the holding block is disposed between the connecting portion of the male buckle member and the engaging portion of the male buckle member, and extends along the engaging axis.   
     
     
         4 . The belt buckle as claimed in  claim 2 , wherein the engaging portion of the female buckle member comprises
 an end surface connected with the bottom surface; and   an opening formed along the pulling axis through the end surface and connected with the engaging recess; wherein the holding block is disposed at the opening of the engaging portion of the female buckle member.   
     
     
         5 . The belt buckle as claimed in  claim 1 , wherein the engaging portion of the female buckle member comprises two first guiding surfaces connected between the bottom surface and the inner surface, wherein the first guiding surfaces are inclined toward the engaging recess and respectively connected with the engaging holes; and each of the engaging protrusions of the male buckle member comprises a second guiding surface inclined at a same angle as each of the first guiding surfaces. 
     
     
         6 . The belt buckle as claimed in  claim 2 , wherein the engaging portion of the female buckle member comprises two first guiding surfaces connected between the bottom surface and the inner surface, wherein the first guiding surfaces are inclined toward the engaging recess and respectively connected with the engaging holes; and each of the engaging protrusions of the male buckle member comprises a second guiding surface inclined at a same angle as each of the first guiding surfaces. 
     
     
         7 . The belt buckle as claimed in  claim 3 , wherein the engaging portion of the female buckle member comprises two first guiding surfaces connected between the bottom surface and the inner surface, wherein the first guiding surfaces are inclined toward the engaging recess and respectively connected with the engaging holes; and each of the engaging protrusions of the male buckle member comprises a second guiding surface inclined at a same angle as each of the first guiding surfaces. 
     
     
         8 . The belt buckle as claimed in  claim 4 , wherein the engaging portion of the female buckle member comprises two first guiding surfaces connected between the bottom surface and the inner surface, wherein the first guiding surfaces are inclined toward the engaging recess and respectively connected with the engaging holes; and each of the engaging protrusions of the male buckle member comprises a second guiding surface inclined at a same angle as each of the first guiding surfaces. 
     
     
         9 . The belt buckle as claimed in  claim 1 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         10 . The belt buckle as claimed in  claim 2 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         11 . The belt buckle as claimed in  claim 3 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         12 . The belt buckle as claimed in  claim 4 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         13 . The belt buckle as claimed in  claim 5 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         14 . The belt buckle as claimed in  claim 6 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         15 . The belt buckle as claimed in  claim 7 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         16 . The belt buckle as claimed in  claim 8 , wherein the engaging portion of the female buckle member comprises two outer pressing components disposed along the pressing axis and respectively on two sides of the engaging portion, each of the outer pressing components comprises an abutting block mounted on an end of each of the outer pressing components, and the abutting block of each of the outer pressing components is selectively positioned in each of the engaging holes and selectively abuts against a corresponding engaging protrusion of the male buckle member. 
     
     
         17 . The belt buckle as claimed in  claim 1 , wherein the engaging axis, the pressing axis, and the pulling axis are perpendicular to each other. 
     
     
         18 . The belt buckle as claimed in  claim 5 , wherein the engaging axis, the pressing axis, and the pulling axis are perpendicular to each other. 
     
     
         19 . The belt buckle as claimed in  claim 8 , wherein the engaging axis, the pressing axis, and the pulling axis are perpendicular to each other. 
     
     
         20 . The belt buckle as claimed in  claim 16 , wherein the engaging axis, the pressing axis, and the pulling axis are perpendicular to each other.