Replaceable fastener

Abstract

The invention discloses a replaceable fastener, which can realize the disassembly and assembly of a braid, is stable in structure, is not easy to deform or break, does not need to thicken a cross rod and can reduce the material consumption, and comprises a connecting body and the cross rod, the connecting body comprises a main body part, a connecting part and two elastic cantilevers, the connecting part is formed on the main body part and used for being connected with another fastener or an external braid, the two elastic cantilevers are fixed on the main body part and are oppositely arranged left and right, and a mounting space for inserting the cross rod is formed between the two elastic cantilevers; the width of the tail ends of the elastic cantilevers is increased, and limiting steps are formed on the front sides and the rear sides of the elastic cantilevers correspondingly. The cross rod comprises a connecting arm used for penetrating through a woven belt and two limiting pieces fixed to the left end and the right end of the connecting arm and corresponding to the elastic cantilevers in a one-to-one mode. A clamping groove penetrating through the upper surface and the lower surface of the limiting piece is formed in the face, opposite to the connecting arm, of the limiting piece, the elastic cantilever is clamped into the clamping groove, and the areas, corresponding to the two sides of the clamping groove, of the upper surface of the limiting piece abut against the two limiting steps in a one-to-one correspondence mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of buckles, in particular to a replaceable buckle. BACKGROUND

[0002] The plastic buckle is a connecting piece made of plastic and can release the connection of two rope belts or webbing. The buckle is connected with the rope belt or webbing on the bag in series and forms a carrying system of the bag, so that the user can fix the bag on the body. The series connection part of the buckle and the rope belt or webbing is generally a horizontal rod. The rope belt or webbing is fixed on the horizontal rod to realize the series connection of the rope belt or webbing and the buckle. Therefore, the horizontal rod is also called a belt holding rod. According to the connection form of the horizontal rod and the buckle, the buckles on the market are mainly divided into two types: integrated buckle and quick release buckle. The integrated buckle has high strength, but after the webbing is fixed on the horizontal rod, the webbing cannot be disassembled, which makes it difficult to meet the user's demand for disassembling and replacing the belt. The quick release buckle mainly includes three types. The first type is to open a notch in the middle of the horizontal rod, so that the webbing is sleeved on the horizontal rod from the notch to complete the assembly. Due to the opening of the notch, the strength of the horizontal rod is insufficient, and after the horizontal rod is deformed under the tension, the webbing will be pulled off the horizontal rod, which affects the stability of the connection between the buckle and the webbing. The second type is to fix one end of the horizontal rod on the buckle, and the other end of the horizontal rod is detachably buckled with the buckle. After the webbing is sleeved on the horizontal rod, the horizontal rod and the buckle are buckled. When the webbing is pulled by the gravity of the bag and external force, the left and right ends of the horizontal rod are unevenly stressed, and the horizontal rod is easy to break, which affects the service life of the buckle. The third type is to horizontally pass the horizontal rod through the buckle and fix it. The horizontal rod passes through the buckle at the same time as the webbing, so as to position the webbing through the buckle and the horizontal rod. In this case, in order to ensure the strength of the horizontal rod, the horizontal rod needs to be thickened, which will increase the material consumption of the buckle as a whole, thereby increasing the production cost of the buckle. SUMMARY

[0003] Therefore, it is necessary to provide a replaceable buckle which can realize the disassembly and assembly of the webbing, has stable structure, is not easy to deform or break, does not need to thicken the horizontal rod, and can reduce the material consumption.

[0004] A replaceable fastener includes a connecting body and a crossbar, the connecting body includes a main body part, a connecting part formed on the main body part and used for connecting with another fastener or an external webbing, two elastic cantilevers fixed on the main body part and oppositely arranged left and right, an installation space for inserting the crossbar is formed between the two elastic cantilevers, the width of the end of the elastic cantilever is increased and a limiting step is formed on each of the front and back sides of the elastic cantilever, the crossbar includes a connecting arm for passing through the webbing, two limiting pieces fixed on the left and right ends of the connecting arm and corresponding to the elastic cantilevers respectively, a clamping groove is formed on the side of the limiting piece away from the connecting arm and penetrating the upper and lower surfaces of the limiting piece, the elastic cantilever is clamped into the clamping groove, and the upper surface of the limiting piece corresponds to the two limiting steps on the sides of the clamping groove.

[0005] In one embodiment, the elastic cantilever includes a vertical part fixedly connected with the main body part, and a horizontal part fixed on the top end of the vertical part, the front and back ends of the horizontal part protrude from the front and back sides of the vertical part and form the limiting steps on the front and back sides of the top end of the vertical part respectively, the dimension of the vertical part along the front and back sides is smaller than that of the main body part along the front and back sides, the vertical part is arranged at the side edge of the main body part, and two supporting platforms corresponding to the limiting steps are formed on the main body part on the front and back sides of the vertical part, and a clamping area is formed between each limiting step and the supporting platform below it.

[0006] In one embodiment, the limiting piece includes a fixed plate fixedly connected with the end of the connecting arm, and two clamping blocks oppositely arranged on the side of the fixed plate away from the connecting arm, the fixed plate and the two clamping blocks jointly form the clamping groove, the two clamping blocks are inserted into the two clamping areas respectively, and the upper surface of the clamping block abuts against the limiting step, and the lower surface of the clamping block abuts against the supporting platform.

[0007] In one embodiment, the top end of the horizontal part protrudes from the upper surface of the connecting arm and forms a gripping part, the upper surface of the fixed plate is higher than the upper surface of the connecting arm, the connecting arm and the two fixed plates on its two sides jointly form a webbing limiting area, the supporting platform is a concave arc surface, the shape of the lower surface of the clamping block is adapted to the shape of the supporting platform, and the upper surface of the clamping block is lower than the upper surface of the fixed plate.

[0008] In one embodiment, the connecting part is a socket matched with another fastener or an elastic fastener;

[0009] The main body part is in a U-shaped or V-shaped structure, the main body part includes the connecting part for passing through the webbing and two arm parts on both sides of the connecting part, and the two elastic cantilevers are fixedly arranged at the top ends of the two arm parts respectively.

[0010] In one embodiment, the elastic cantilever is bent towards the middle part of the installation space.

[0011] In one of the embodiments, the fixing plate is provided with a supporting slope at a position above the clamping block, the distance from the top end of the supporting slope to the middle of the connecting arm is less than the distance from the bottom end of the supporting slope to the middle of the connecting arm, and the inner side surface of the horizontal part is shaped to match the shape of the supporting slope.

[0012] In one of the embodiments, the upper surface of the clamping block is an inclined surface, and the height of the upper surface of the clamping block gradually increases in the direction away from the connecting arm, and the shape of the limiting step matches the shape of the inclined surface.

[0013] In one of the embodiments, the main body part is in a rectangular frame structure, including two horizontally arranged horizontal arms and two vertically arranged vertical arms between the two horizontal arms, the two ends of one vertical arm are fixedly connected with one end of the two horizontal arms respectively, the two ends of the other vertical arm are fixedly connected with the other end of the two horizontal arms respectively, and the two elastic suspension arms are fixed on the two vertical arms one by one; the two horizontal arms of the main body part form the connecting part for threading the belt, or a horizontal arm fixedly connected with the two vertical arms and parallel to the horizontal arms is fixed on the main body part, and the horizontal arm and one horizontal arm jointly form the connecting part for threading the belt.

[0014] In one of the embodiments, the upper surface of the vertical arm is provided with a mounting gap penetrating through the inner and outer side surfaces of the vertical arm, the elastic suspension arm is accommodated in the mounting gap and fixedly connected with the bottom surface of the mounting gap, the size of the elastic suspension arm along the left and right side direction is less than the size of the vertical arm along the left and right side direction, the size of the elastic suspension arm along the front and back side direction is less than the size of the mounting gap along the front and back side direction, and the outer side surface of the elastic suspension arm is flush with the outer side surface of the vertical arm.

[0015] The alternative fastener of the present application is characterized in that the transverse rod is detachably mounted on the connecting body, the limiting member is arranged on the transverse rod, and the elastic suspension arm is arranged on the connecting body, so that the belt is detachably connected with the alternative fastener, and the belt is convenient to disassemble and assemble, and the transverse rod and the connecting body are assembled without gap, so that the belt is prevented from being pulled off from the transverse rod through the gap, and the stability of the connection between the belt and the transverse rod is improved; the upper surface of the limiting member is abutted against the limiting step on the elastic suspension arm, the inner wall of the clamping groove of the limiting member is abutted against the front and rear sides of the elastic suspension arm, and the bottom wall of the clamping groove of the limiting member is correspondingly matched with the inner side of the elastic suspension arm, so that the transverse rod and the connecting body are limited in the front and rear direction, the left and right direction and the up and down direction, the connection between the transverse rod and the connecting body is stable and reliable, the two ends of the connecting arm are matched with the elastic suspension arms on the connecting body through the limiting members, each limiting member is abutted against two limiting steps, the force acting on the connecting arm is dispersed to multiple connection points, the left and right ends of the connecting arm are uniformly stressed, the deformation or fracture of the connection between the transverse rod and the connecting body caused by uneven stress is avoided, the service life of the alternative fastener is prolonged, the stability of the connection between the transverse rod and the connecting body and the reliability of the structure of the alternative fastener are ensured without thickening the transverse rod, the material consumption of the alternative fastener is reduced, and the production cost of the alternative fastener is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a perspective view of the alternative fastener in the closed state according to the embodiment 1 of the present application;

[0017] Figure 2 FIG. 2 is a front view of the alternative fastener in the closed state according to the embodiment 1 of the present application;

[0018] Figure 3 FIG. 3 is a side view of the alternative fastener in the closed state according to the embodiment 1 of the present application;

[0019] Figure 4 FIG. 4 is a perspective view of the alternative fastener in the open state according to the embodiment 1 of the present application;

[0020] Figure 5 FIG. 5 is a front view of the alternative fastener in the open state according to the embodiment 1 of the present application;

[0021] Figure 6 FIG. 6 is a side view of the alternative fastener in the open state according to the embodiment 1 of the present application;

[0022] Figure 7 FIG. 7 is a perspective view of the plug-in buckle with a single alternative fastener according to the embodiment 1 of the present application;

[0023] Figure 8 FIG. 8 is a perspective view of the plug-in buckle with two alternative fasteners according to the embodiment 1 of the present application;

[0024] Figure 9FIG. 2 is a perspective view of the replaceable fastener of the present application in a closed state according to Embodiment 1 of the present application;

[0025] Figure 10 FIG. 3 is a perspective view of the replaceable fastener of the present application in an open state according to Embodiment 1 of the present application;

[0026] Figure 11 FIG. 6 is a perspective view of the replaceable fastener of the present application in a closed state according to Embodiment 3 of the present application;

[0027] Figure 12 FIG. 7 is a perspective view of the replaceable fastener of the present application in an open state according to Embodiment 3 of the present application;

[0028] Figure 13 FIG. 8 is a perspective view of the replaceable fastener of the present application in a closed state according to Embodiment 4 of the present application;

[0029] Figure 14 FIG. 9 is a perspective view of the replaceable fastener of the present application in an open state according to Embodiment 4 of the present application. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0031] Embodiment 1

[0032] Please refer to Figures 1-6The application discloses a replaceable fastener, which comprises a connecting body 100 and a crossbar 200, the connecting body 100 is detachably connected with the crossbar 200 so as to put a webbing on the crossbar 200 or take the webbing on the crossbar 200 off. The connecting body 100 comprises a main body part 110, a connecting part 120 formed on the main body part 110 and used for connecting with another fastener or external webbing, two elastic suspension arms 130 fixed on the main body part 110 and oppositely arranged left and right, and the connecting part 120 of the connecting body 100 is a structure used for connecting with other fasteners or webbings on the replaceable fastener. In the embodiment, an installation space 140 for inserting the crossbar 200 is formed between the two elastic suspension arms 130, the width of the end of the elastic suspension arm 130 is increased, and a limiting step 131 is formed on each of the front and back sides of the elastic suspension arm 130. The crossbar 200 comprises a connecting arm 210 for passing through the webbing, two limiting members 220 fixed on the left and right ends of the connecting arm 210 and corresponding to the elastic suspension arms 130 one by one, and a clamping groove 230 is formed on the surface of the limiting member 220 and penetrates the upper and lower surfaces of the limiting member 220, the elastic suspension arm 130 is clamped in the clamping groove 230, and the upper surface of the limiting member 220 corresponds to the two limiting steps 131 on the two sides of the clamping groove 230 and abuts against the two limiting steps 131. In the embodiment, the limiting step 131 and the upper surface of the limiting member 220 abut against each other, thereby limiting the crossbar 200 in the height direction of the replaceable fastener and ensuring the stability of the connection of the crossbar 200 and the connecting body 100 in the height direction of the replaceable fastener. Furthermore, the clamping groove 230 separates the limiting member 220 into two parts on the two sides of the elastic suspension arm 130, so that the two sides of the clamping groove 230 can be embedded in the regions below the two limiting steps 131, thereby making the inner side wall of the clamping groove 230 abut against the front side and the back side of the elastic suspension arm 130, limiting the elastic suspension arm 130 in the clamping groove 230 and preventing the crossbar 200 from moving relative to the connecting body 100 in the front and back directions of the replaceable fastener. In addition, the bottom wall of the clamping groove 230 (namely, the inner wall of the clamping groove 230 facing away from the middle part of the connecting arm 210) of the two limiting members 220 and the elastic suspension arm 130 are matched, so that the crossbar 200 can be prevented from moving relative to the connecting body 100 in the left and right directions (the width direction of the replaceable fastener) of the replaceable fastener under the limitation of the elastic suspension arm 130. In this way, the position between the crossbar 200 and the connecting body 100 is limited in multiple directions, the stability of the connection between the crossbar 200 and the connecting body 100 is improved, the replaceable fastener bears uniformly, the product performance and durability of the replaceable fastener are close to the structure that the crossbar and the fastener are integrally formed. In addition, the detachable design of the crossbar and the connecting body enables the damaged part to be replaced individually when one of the crossbar and the connecting body is damaged, so that the use cost of the replaceable fastener is reduced.

[0033] In the embodiment, the front-rear direction refers to the thickness direction of the replaceable fastener, the left-right direction refers to the width direction of the replaceable fastener, the up-down direction refers to the height direction of the replaceable fastener, the front side refers to each face in the front view of the replaceable fastener, and the back side refers to the face opposite to the front side. The upper surface refers to the face of each component opposite to the connecting portion 120. In other embodiments, the explanation can also be referred to.

[0034] It should be noted that in the embodiment, the force of the webbing acting on the cross bar 200 is dispersed to the two limiting members 220, and further transmitted to the two limiting steps 131 connected with the limiting members 220. In this way, the force acting on the cross bar 200 is evenly dispersed to the limiting members 220 cooperating with the four limiting steps 131, the connection points of the cross bar 200 and the connecting body 100 are increased, and the single-point force on the cross bar 200 is reduced, thereby avoiding the problem of the cross bar 200 breaking due to the excessive local force on the cross bar 200. In addition, the elastic suspension arm 130 is made of a plastic material with a certain elasticity. In this way, the elastic suspension arm 130 can produce elastic deformation when subjected to external force, so as to move the end of the elastic suspension arm 130 and separate the limiting member 220 from the elastic suspension arm 130.

[0035] In an embodiment, the elastic suspension arm 130 comprises a vertical part 132 fixedly connected with the main body part 110, a horizontal part 133 fixed at the top end of the vertical part 132, and the front and rear ends of the horizontal part 133 protrude from the front and rear sides of the vertical part 132 and form a limiting step 131 at the front and rear sides of the top end of the vertical part 132. It can be understood that the elastic suspension arm 130 of the embodiment is in a T-shaped structure, and the vertical part 132 and the horizontal part 133 are integrally formed to form a T-shaped tenon. In this way, the entire elastic suspension arm 130 is symmetrically arranged, so that when the webbing is subjected to a force, the force is more evenly distributed at the position where the limiting member is connected with the elastic suspension arm 130, thereby reducing wear and tear, and the force is dispersed on the horizontal part, thereby avoiding stress concentration. The dimension of the vertical part 132 along the front and rear sides is smaller than the dimension of the main body part 110 along the front and rear sides, the vertical part 132 is centrally arranged at the side edge of the main body part 110, and the main body part 110 forms two support platforms 111 corresponding to the front and rear sides of the vertical part 132, and each limiting step 131 and the support platform 111 below it form a clamping area 134. In the embodiment, the area on the main body part 110 corresponding to the vertical part 132, the vertical part 132, and the horizontal part 133 together form an I-shaped structure, and each side of the I-shaped structure forms a clamping area 134 for the side wall of the clamping groove 230, so as to insert the limiting member 220 and realize the cooperation between the limiting member 220 and the elastic suspension arm 130. In addition, in the embodiment, the support platform 111 is formed below the limiting step 131. In this way, by cooperating the limiting step 131 with the upper surface of the limiting member 220, the upward movement of the horizontal rod 200 along the height direction of the replaceable fastener is limited, and by cooperating the support platform 111 with the lower surface of the limiting member 220, the downward movement of the horizontal rod 200 along the height direction of the replaceable fastener is limited, thereby avoiding the horizontal rod 200 from moving along the height direction of the replaceable fastener relative to the connecting body 100.

[0036] In the embodiment, the connecting part is a socket or an elastic fastener that is inserted and cooperated with another fastener. That is, the replaceable fastener of the embodiment is used as a male or female fastener, the connecting part and the elastic suspension arm are located at both ends of the main body part, and the replaceable fastener needs to be inserted and cooperated with another fastener to realize the connection of two webbings. Specifically, when the replaceable fastener is used as a female fastener, the connecting part 120 is a socket 121 (as shown in FIG. 1) penetrating through the two opposite side walls of the main body part and forming a pressing notch 122 at both sides of the main body part. When the replaceable fastener is used as a male fastener, the connecting part 120 is an elastic fastener (as shown in FIG. 2) that is inserted and cooperated with another fastener. Figure 7As shown in the figure, when the replaceable fastener is buckled with another fastener (male buckle) outside, the two elastic buckle feet of the male buckle pass through the insertion hole and are inserted into the two pressing notches 122 one by one, and the elastic buckle feet have shoulder portions abutting against the lower edges of the pressing notches 122, so that the plug-in connection of the replaceable fastener and the external fastener can be achieved through the mutual constraint of the pressing notches 122 and the elastic buckle feet. When the replaceable fastener is a male buckle, two elastic buckle feet are arranged on the main body 110 opposite to the end of the elastic cantilever 130, and the two elastic buckle feet together form the connecting portion 120 of the replaceable fastener, and the elastic buckle feet are provided with shoulder portions limiting the pressing notches 122 of another fastener (female buckle) outside. Of course, the connecting portion 120 of the replaceable fastener can also be plugged into the plug-in structure of the male buckle or the female buckle on the market, and the specific structure of the connecting portion 120 is not covered by the present scheme.

[0037] In addition, in the plug-in buckle, one of the male buckle and the female buckle can adopt the quick release structure of the present embodiment (such as Figure 7 As shown in the figure, at this time, only the horizontal rods of one of the male buckle and the female buckle are detachable, that is, only the webbing at one end of the plug-in buckle can be disassembled. Both the male buckle and the female buckle can also adopt the replaceable fastener of the present embodiment, that is, detachable horizontal rods are arranged on the male buckle and the female buckle, and the webbings at both ends of the plug-in buckle can be disassembled (such as Figure 8 As shown in the figure).

[0038] In an embodiment, the limiting piece 220 includes a fixed plate 221 fixedly connected with the end of the connecting arm 210, two clamping blocks 222 arranged opposite to the side face of the fixed plate 221 away from the connecting arm 210, and the fixed plate 221 and the two clamping blocks 222 together enclose a clamping groove 230, that is, one clamping block 222 is located on the front side of the fixed plate 221, and the other clamping block 222 is located on the rear side of the fixed plate 221. The two clamping blocks 222 are inserted into the two clamping areas 134 one by one, and the upper surface of the clamping block 222 abuts against the limiting step 131, the lower surface of the clamping block 222 abuts against the supporting platform 111, and the inner side face of the clamping block 222 (that is, the face of the clamping block 222 located in the clamping groove 230) abuts against the front side face or the rear side face of the vertical portion 132, so as to realize the multi-directional clamping of the limiting piece 220 and the elastic cantilever 130. In the present embodiment, the upper surface of the fixed plate 221 is higher than the upper surface of the connecting arm 210, and the connecting arm 210 and the two fixed plates 221 on its two sides together enclose a webbing limiting area, so as to prevent the webbing sleeved on the connecting arm 210 from moving sideways and realize the positioning of the webbing.

[0039] In the embodiment, the elastic suspension arms 130 are bent towards the middle part of the mounting space 140, so that the distance between the top ends of the two elastic suspension arms 130 is smaller than the width of the mounting space 140 (i.e. the dimension of the mounting space 140 along the left-right direction of the replaceable fastener). A part of the inner side of the elastic suspension arms 130 (i.e. the side of the elastic suspension arms 130 located on the mounting space 140) abuts against the upper surface of the connecting arm 210 or the upper surface of the limiting member 220, so that the elastic suspension arms 130 can further limit the horizontal bar 200 in the height direction of the replaceable fastener by pressing the horizontal bar 200, thereby increasing the connection points of the horizontal bar 200 and the connecting body 100 in the height direction of the replaceable fastener and further improving the stability of the connection of the horizontal bar 200 and the connecting body 100 in the height direction of the replaceable fastener.

[0040] In the embodiment, the elastic suspension arms 130 are bent towards the middle part of the mounting space 140, so that the elastic suspension arms 130 can be deformed greatly under the action of external force (such as pulling force in the direction away from the mounting space 140 and along the left-right direction of the replaceable fastener) to make the user pull the end of the elastic suspension arms 130 in the direction away from the mounting space 140, so that the elastic suspension arms 130 can be deformed greatly to separate the limiting member 220 from the limiting step 131, thereby releasing the constraint of the limiting step 131 on the limiting member 220 and the constraint of the side wall of the clamping groove 230 on the elastic suspension arms 130, so as to remove the horizontal bar 200 from the connecting body 100, thereby reducing the difficulty of disassembling the horizontal bar 200 and the connecting body 100.

[0041] In the embodiment, the top end of the vertical part 132 is inclined away from the mounting space 140, the top end of the horizontal part 133 is inclined toward the mounting space 140, and the angle between the horizontal part 133 and the height direction of the connecting body 100 is greater than the angle between the vertical part 132 and the height direction of the connecting body 100. Preferably, the angle between the horizontal part 133 and the height direction of the connecting body 100 is 15-30°, and the angle between the vertical part 132 and the height direction of the connecting body 100 is 5-10°. In the embodiment, the top end of the vertical part 132 is inclined away from the mounting space 140, and the top end of the horizontal part 133 is inclined toward the mounting space 140. In this way, only a small pulling force is needed at the end of the elastic suspension arm 130 to make the elastic suspension arm 130 produce a large deformation, so that the limiting step 131 is separated from the limiting piece 220, and the problem of the end of the elastic suspension arm 130 being broken due to a large pulling force when the horizontal rod 200 and the connecting body 100 are separated can be avoided, thereby prolonging the service life of the replaceable fastener. In addition, by making the angle between the horizontal part 133 and the height direction of the connecting body 100 greater than the angle between the vertical part 132 and the height direction of the connecting body 100, when the webbing is subjected to an external pulling force, the force transmitted to the horizontal rod 200 through the webbing can be partially transmitted to the inner side of the horizontal part 133, so as to further reduce the force acting on the upper surface of the limiting piece 220 and the matching part of the limiting step 131. Further, the top end of the horizontal part 133 protrudes from the upper surface of the connecting arm 210 and forms a gripping part. In this way, the user only needs to pull the end of the elastic suspension arm 130 away from the limiting piece 220 by gripping the gripping part, so as to release the constraint of the limiting step 131 on the limiting piece 220.

[0042] Further, the upper surface of the clamping block 222 is lower than the upper surface of the fixed plate 221, the part of the fixed plate 221 above the clamping block 222 is provided with a supporting slope 223, the distance from the top end of the supporting slope 223 to the middle part of the connecting arm 210 is less than the distance from the bottom end of the supporting slope 223 to the middle part of the connecting arm 210, and the inner side of the horizontal part 133 is shaped to match the shape of the supporting slope 223, that is, the inner side of the horizontal part 133 is also a slope that matches the supporting slope 223. In the embodiment, by providing the supporting slope 223, the inner side of the horizontal part 133 is supported and limited, the horizontal part 133 limits the horizontal rod 200 along the height direction of the replaceable fastener, and the movement of the elastic suspension arm 130 toward the middle part of the connecting arm 210 is limited, that is, the inner side of the horizontal part 133 is positioned, so as to prevent the vertical part 132 from excessively pressing the fixed plate 221 and reduce the force of the connecting body 100 acting on the horizontal rod 200 along the width direction of the replaceable fastener when the horizontal rod 200 and the connecting body 100 are assembled.

[0043] The upper surface of the clamping block 222 is an inclined surface 224, and the height of the upper surface of the clamping block 222 gradually increases in a direction away from the connecting arm 210. The shape of the limiting step 131 is adapted to the shape of the inclined surface 224, that is, the limiting step 131 is also a slope surface that is in close contact with the inclined surface 224. In this way, through the abutment of the upper surface of the clamping block 222 and the limiting step 131, on the one hand, the limiting of the horizontal rod 200 and the connecting body 100 along the height direction of the replaceable fastener is realized, and on the other hand, the setting of the inclined surface 224 also realizes the positioning of the horizontal rod 200 and the connecting body 100 along the width direction of the replaceable fastener. In this way, if the elastic cantilever 130 is directly pulled along the width direction of the replaceable fastener (assuming that the deformation amount of the elastic cantilever 130 is large, and the elastic cantilever 130 can be deformed under the horizontal pulling force acting on the non-end portion of the elastic cantilever 130), the elastic cantilever 130 will always maintain cooperation with the limiting piece 220 under the mutual constraint of the inclined surface 224 and the slope surface. Only when the user rotates the end portion of the elastic cantilever 130, the horizontal portion 133 and the vertical portion 132 of the elastic cantilever 130 simultaneously deflect and deform a certain amount relative to the main body portion 110, so that the limiting step 131 rotates away from the upper surface of the clamping block 222, the constraint between the limiting step 131 and the upper surface of the clamping block 222 is released, and the stability of the connection between the horizontal rod 200 and the connecting body 100 can be further improved.

[0044] In the embodiment, the support platform 111 is a concave arc surface, and the shape of the lower surface of the clamping block 222 is adapted to the shape of the support platform 111, that is, the lower surface of the clamping block 222 is a convex arc surface that is in concave-convex cooperation with the concave arc surface, so as to reduce the scratching and impact of the lower surface of the clamping block 222 on the support platform 111 during the assembly of the horizontal rod 200 and the connecting body 100. In addition, the size of the clamping block 222 in the left-right direction gradually increases from the bottom of the clamping block 222 to the top of the clamping block 222. It can be understood that the clamping block 222 as a whole has a right-angled trapezoidal structure, and the side of the clamping block 222 away from the fixed plate 221 is a slope surface. In this way, on the one hand, after the assembly of the horizontal rod 200 and the connecting body 100, the side of the clamping block 222 away from the fixed plate 221 is flush with the outer side surface of the vertical portion 132 (that is, the side of the vertical portion 132 away from the mounting space 140), improving the overall aesthetics of the replaceable fastener and avoiding the occurrence of scratching people or objects due to the protrusion of the clamping block 222 from the outer side surface of the vertical portion 132; on the other hand, the upper part of the clamping block 222 is ensured to have a large contact area with the limiting step 131, improving the strength of the cooperation part of the clamping block 222 and the limiting step 131, and avoiding the clamping block 222 from being pulled off or deformed when the force on the webbing increases, thereby improving the structural strength of the replaceable fastener and prolonging the service life of the replaceable fastener.

[0045] In an embodiment, the lower surface of the connecting arm 210 is a convex arc surface, and the height of the middle part of the lower surface of the connecting arm 210 is lower than the height of the rest of the connecting arm 210. When the horizontal rod 200 of the woven belt is connected with the elastic suspension arms 130 on both sides, the bending moment of the middle part of the horizontal rod 200 is greater than the bending moment of the end part of the horizontal rod 200 when the woven belt is subjected to external tension. In this embodiment, the lower surface of the connecting arm 210 is a convex arc surface, so that the height of the middle part of the connecting arm 210 is greater than the height of the rest of the connecting arm 210, which can improve the strength of the middle part of the connecting arm 210 and avoid the middle part of the connecting arm 210 being pulled off, thereby prolonging the service life of the horizontal rod 200. The front and rear sides of the connecting arm 210 are provided with weight-reducing grooves 211, so that the material of the horizontal rod 200 and even the entire replaceable fastener can be reduced while the strength of the horizontal rod 200 is improved by increasing the height of the middle part of the connecting arm 210, thereby further reducing the production cost of the replaceable fastener.

[0046] It should be noted that in this embodiment, the connecting arm 210, the fixed plate 221 and the clamping block 222 are integrally formed, and the part where the connecting arm 210 is connected with the fixed plate 221 is provided with an arc-shaped thickened reinforcing area to improve the strength of the connecting part of the connecting arm 210 and the fixed plate 221. The elastic suspension arm 130 is integrally formed with the main body 110 to improve the stability of the connection between the elastic suspension arm 130 and the main body 110.

[0047] Embodiment 2

[0048] Please refer to Figures 9-10 The difference between this embodiment and embodiment 1 is that in this embodiment, the main body 110 is in a U-shaped or V-shaped structure, and the entire replaceable fastener forms a D-shaped buckle structure. The main body 110 includes a connecting part 120 for passing through the woven belt and two arm parts on both sides of the connecting part 120. Two elastic suspension arms 130 are fixed at the top ends of the two arm parts, that is, the connecting part is located at the lower end of the two elastic suspension arms. Therefore, when the replaceable fastener is connected with the woven belt, the replaceable fastener itself forms a detachable or buckled connecting buckle, thereby realizing the connection of two sections of woven belts. The structure of the elastic suspension arm 130 and the structure of the horizontal rod of this embodiment are exactly the same as those of embodiment 1, and the specific description of the structure and effect of the elastic suspension arm 130 and the horizontal rod can be referred to the description in embodiment 1.

[0049] Embodiment 3

[0050] Please refer to Figures 11-12The difference between the embodiment and embodiment 1 is that the main body 110 is a rectangular frame structure in the embodiment, the main body 110 includes two opposite horizontal arms 112 and two vertical arms 113 opposite arranged between the two horizontal arms 112, the two ends of one vertical arm 113 are respectively fixedly connected with one end of the two horizontal arms 112, the two ends of the other vertical arm 113 are respectively fixedly connected with the other end of the two horizontal arms 112, and the two elastic suspension arms are fixed on the two vertical arms 113 one by one. It can also be understood that when the wide surface of the whole main body is attached to a vertical plane, the elastic suspension arm and the horizontal rod are arranged on the front side or the rear side of the main body. Further, the two horizontal arms 112 of the main body form a connecting part for threading the belt, of course, according to the threading requirement of the belt, the belt can also be fixedly threaded on one horizontal arm. That is, the whole replaceable fastener forms a sun-shaped fastener. In the embodiment, the upper surface of the vertical arm 113 is provided with a mounting gap 114 penetrating the inner and outer sides of the vertical arm, the elastic suspension arm 130 is accommodated in the mounting gap 114 and is fixedly connected with the bottom surface of the mounting gap 114, the size of the elastic suspension arm 130 along the left and right side direction is smaller than the size of the vertical arm 113 along the left and right side direction, the size of the elastic suspension arm 130 along the front and rear side direction is smaller than the size of the mounting gap 114 along the front and rear side direction, and the outer side surface of the elastic suspension arm 130 (the side surface of the elastic suspension arm facing away from the center of the main body) is flush with the outer side surface of the vertical arm 113. That is, there is a gap between the elastic suspension arm and the inner wall of the mounting gap, so that the elastic suspension arm can be actuated under external force to release the constraint on the horizontal rod 220. By making the size of the elastic suspension arm 130 along the left and right side direction smaller than the size of the vertical arm 113 along the left and right side direction, and making the outer side surface of the elastic suspension arm 130 flush with the outer side surface of the vertical arm 113, a step can be formed on the inner side of the mounting gap to support the fixed plate and avoid the fracture of the connecting part of the fixed plate and the clamping block due to overload.

[0051] The structure of the elastic suspension arm 130 and the structure of the horizontal rod of the embodiment are completely the same as those of embodiment 1, and the specific description of the structure and the effect of the elastic suspension arm 130 and the horizontal rod can be referred to embodiment 1. Of course, according to the different elastic properties of the elastic suspension arm, the elastic suspension arm can also be designed as a T-shaped plate structure as a whole (i.e. without bending the elastic suspension arm) under the condition that the elastic suspension arm is easy to actuate, and the specific description is omitted here.

[0052] Embodiment 4

[0053] Please combine Figures 13-14 The difference between the embodiment and embodiment 3 is that the main body 110 is fixedly connected with a horizontal arm 115 parallel to the horizontal rod 200 and fixedly connected with the two vertical arms 113, and the horizontal arm 115 and one horizontal arm 112 jointly form a connecting part for threading the belt. That is, the whole replaceable fastener forms a ladder-shaped connecting fastener.

[0054] The structure of the elastic cantilever 130 and the structure of the crossbar of the embodiment are completely same as those of the embodiment 1, and the description of the structure and the effect of the elastic cantilever 130 and the crossbar in the embodiment 1 can be referred to. Of course, according to the different elastic properties of the elastic cantilever, the elastic cantilever can be designed as a T-shaped plate structure as a whole (i.e. without bending the elastic cantilever) under the condition that the elastic cantilever is easy to be pushed, and the detailed description is not repeated here.

[0055] The replaceable fastener can detachably mount the crossbar 200 on the connecting body 100, and set the limiting member 220 on the crossbar 200 and the elastic cantilever 130 on the connecting body 100, so as to realize the detachable connection of the webbing and the replaceable fastener and facilitate the disassembly of the webbing, and the crossbar 200 and the connecting body 100 are assembled without a gap, which can avoid the webbing being pulled off from the crossbar 200 through the gap, and the stability of the connection of the webbing and the crossbar 200 is improved; the upper surface of the limiting member 220 abuts against the limiting step 131 on the elastic cantilever 130, the inner side wall of the clamping groove 230 of the limiting member 220 abuts against the front and rear side surfaces of the elastic cantilever 130, and the bottom wall of the clamping groove 230 of the limiting member 220 corresponds to the inner side surface of the elastic cantilever 130, so as to realize the limiting of the crossbar 200 and the connecting body 100 in the front-rear direction, the left-right direction and the up-down direction, the connection part of the crossbar 200 and the connecting body 100 is stable and reliable, the two ends of the connecting arm 210 are respectively matched with the elastic cantilever 130 on the connecting body 100 through one limiting member 220, each limiting member 220 is respectively abutted against two limiting steps 131, the force acting on the connecting arm 210 is dispersed to multiple connection points, the force on the left and right ends of the connecting arm 210 is uniform, the deformation or fracture of the connection part of the crossbar 200 and the connecting body 100 caused by uneven force can be avoided, which is beneficial to prolong the service life of the replaceable fastener; the stability of the connection of the crossbar 200 and the connecting body 100 and the reliability of the structure of the replaceable fastener can be ensured without thickening the crossbar 200, the material consumption of the replaceable fastener can be reduced, and the production cost of the replaceable fastener is reduced.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0057] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A replaceable fastener characterized by, The connecting body comprises a main body, a connecting part formed on the main body and used for connecting with another fastener or external webbing, two elastic cantilever arms fixed on the main body and arranged oppositely left and right, and a mounting space for inserting the crossbar formed between the two elastic cantilever arms, the width of the elastic cantilever arm end is increased, and a limiting step is formed on each of the front and rear sides of the elastic cantilever arm; the crossbar comprises a connecting arm for passing through the webbing, two limiting pieces corresponding to the elastic cantilever arms fixed on the left and right ends of the connecting arm, and a clamping groove is formed on the upper and lower surfaces of the limiting piece, the elastic cantilever arm is clamped into the clamping groove, and the upper surface of the limiting piece corresponds to the two limiting steps on the two sides of the clamping groove.

2. The replaceable fastener of Claim 1 wherein, The elastic cantilever arm comprises a vertical part fixedly connected with the main body and a horizontal part fixed on the top end of the vertical part, the front and rear ends of the horizontal part protrude from the front and rear sides of the vertical part and form the limiting step on the front and rear sides of the top end of the vertical part; the size of the vertical part along the front and rear sides is smaller than the size of the main body along the front and rear sides, the vertical part is arranged at the side edge of the main body, and two supporting platforms corresponding to the limiting steps are formed on the front and rear sides of the vertical part on the main body; a clamping area is formed between each limiting step and the supporting platform below it.

3. The replaceable fastener of Claim 2 wherein, The limiting piece comprises a fixed plate fixedly connected with the end of the connecting arm and two clamping blocks arranged oppositely on the side of the fixed plate away from the connecting arm; the fixed plate and the two clamping blocks jointly form the clamping groove, the two clamping blocks are inserted into the two clamping areas one by one, and the upper surface of the clamping block abuts against the limiting step, and the lower surface of the clamping block abuts against the supporting platform.

4. The replaceable fastener of Claim 3 wherein, The top end of the horizontal part protrudes from the upper surface of the connecting arm and forms a gripping part; the upper surface of the fixed plate is higher than the upper surface of the connecting arm, and the connecting arm and the two fixed plates on its two sides jointly form a webbing limiting area; the supporting platform is a concave arc surface, the shape of the lower surface of the clamping block is adapted to the shape of the supporting platform, and the upper surface of the clamping block is lower than the upper surface of the fixed plate.

5. The replaceable fastener of Claim 4 wherein, The connecting part is a socket or an elastic fastener for plug-in cooperation with another fastener; or The main body has a U-shaped or V-shaped structure, and comprises the connecting part for passing through the webbing and two arm parts on both sides of the connecting part; the two elastic cantilever arms are fixed on the top ends of the two arm parts one by one.

6. The replaceable fastener of Claim 5 wherein, The elastic cantilever arm is bent towards the middle part of the mounting space.

7. The replaceable fastener of Claim 6 wherein, A supporting inclined surface is arranged on the fixed plate above the clamping block, the distance from the top end of the supporting inclined surface to the middle part of the connecting arm is smaller than the distance from the bottom end of the supporting inclined surface to the middle part of the connecting arm, and the inner side surface of the horizontal part is adapted to the shape of the supporting inclined surface.

8. The replaceable fastener of Claim 3 wherein, The upper surface of the clamping block is an inclined surface, the height of the upper surface of the clamping block gradually increases in the direction away from the connecting arm, and the shape of the limiting step is adapted to the shape of the inclined surface.

9. The replaceable fastener of Claim 4 wherein, The main body part is a rectangular frame structure, comprising two horizontally arranged horizontal arms and two vertically arranged vertical arms between the two horizontal arms, the two ends of one vertical arm are fixedly connected with one end of the two horizontal arms respectively, the two ends of the other vertical arm are fixedly connected with the other end of the two horizontal arms respectively, and two elastic suspension arms are fixed on the two vertical arms one by one; the two horizontal arms of the main body part form the connecting part for threading the woven belt, or a horizontal arm fixedly connected with the two vertical arms and parallel to the horizontal rod is fixed on the main body part, and the horizontal arm and one horizontal arm jointly form the connecting part for threading the woven belt.

10. The replaceable fastener of Claim 9, wherein, The upper surface of the vertical arm is provided with a mounting notch penetrating the inner and outer side surfaces of the vertical arm, the elastic suspension arm is accommodated in the mounting notch and fixedly connected with the bottom surface of the mounting notch, the size of the elastic suspension arm along the left-right side direction is smaller than the size of the vertical arm along the left-right side direction, the size of the elastic suspension arm along the front-rear side direction is smaller than the size of the mounting notch along the front-rear side direction, and the outer side surface of the elastic suspension arm is flush with the outer side surface of the vertical arm.

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