A replaceable fastener

Abstract

This utility model discloses a replaceable fastener that enables the assembly and disassembly of webbing, has a stable structure, is not easily deformed or broken, does not require thickened crossbars, and reduces material usage. The replaceable fastener includes a connecting body and a crossbar. The connecting body includes a main body, a connecting part formed on the main body for connecting with another fastener or external webbing, and two mounting arms fixed on the main body and arranged opposite to each other. An installation area for inserting the crossbar is formed between the two mounting arms. A slot is provided on the side of the mounting arm adjacent to the installation area, penetrating the front and rear sides of the mounting arm. The crossbar includes a connecting arm for passing through the webbing, and two spring arms fixed at both ends of the connecting arm and slidably inserted into each slot. One end of the spring arm is provided with a first limiting part that abuts against the front side of the mounting arm, and the other end of the spring arm is provided with a second limiting part that abuts against the rear side of the mounting arm.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a replaceable fastener. Background Technology

[0002] Plastic buckles connect with straps or webbing on items (such as bags or other clothing) to form a carrying system, allowing users to secure items to their bodies. The part of the buckle that connects to the straps or webbing is typically a crossbar. The straps or webbing are attached to this crossbar to connect to the buckle. Based on the connection method between the crossbar and the buckle, buckles on the market are mainly divided into two types: one-piece buckles and quick-release buckles. One-piece buckles have higher strength, but the webbing cannot be removed after being attached to the crossbar, making it difficult to meet users' needs for strap replacement. Quick-release buckles mainly include three types. The first type has a notch in the middle of the crossbar, allowing the webbing to be threaded through the notch to complete the assembly. Due to the notch, the crossbar's strength is insufficient; under tension, the crossbar deforms, causing the webbing to pull off, resulting in insufficient stability of the buckle-webbing connection. The second method involves fixing one end of the crossbar to the buckle, while the other end is detachably fastened to the buckle. The webbing is then inserted into the crossbar before it is fastened to the buckle. However, when the webbing pulls the crossbar under the weight of the bag and external forces, the uneven stress on the left and right ends of the crossbar makes it prone to breakage, thus affecting the lifespan of the buckle. The third method involves horizontally passing the crossbar through the buckle and fixing it to the buckle. The crossbar passes through the buckle and simultaneously through the webbing, using both the buckle and the crossbar to position the webbing. In this case, to ensure the strength of the crossbar, it needs to be thickened, increasing the overall material usage of the buckle and thus raising its production cost. Utility Model Content

[0003] Therefore, it is necessary to provide a replaceable fastener that can be installed and removed from the webbing, has a stable structure, is not easily deformed or broken, does not require thickened crossbars, and can reduce the amount of material used, in order to address the above-mentioned shortcomings.

[0004] A replaceable fastener includes a connecting body and a crossbar. The connecting body includes a main body, a connecting part formed on the main body for connecting with another fastener or an external webbing, and two mounting arms fixed on the main body and arranged opposite to each other. An installation area for inserting the crossbar is formed between the two mounting arms. A slot is provided on the side of the mounting arm adjacent to the installation area, penetrating the front and rear sides of the mounting arm. The crossbar includes a connecting arm for passing through a webbing, and two spring arms fixed at both ends of the connecting arm and slidably inserted into each slot. One end of the spring arm is provided with a first limiting part that abuts against the front side of the mounting arm, and the other end of the spring arm is provided with a second limiting part that abuts against the rear side of the mounting arm.

[0005] In one embodiment, the front side of the mounting arm has a first limiting notch that communicates with the slot and is used to fit the first limiting part, and the rear side of the mounting arm has a second limiting notch that communicates with the slot and is used to fit the second limiting part.

[0006] In one embodiment, the front side of the connecting arm forms a first webbing limiting area between the two elastic arms, and the rear side of the connecting arm forms a second webbing limiting area between the two elastic arms.

[0007] In one embodiment, the rear side of the connecting arm has a first guide slope and a second guide slope located within the second webbing limiting area and both extending along the length direction of the connecting arm. The first guide slope and the second guide slope are set at an angle, and the connection between the first guide slope and the second guide slope is provided with an arc-shaped transition portion.

[0008] In one embodiment, the side of the connecting arm adjacent to the main body is a convex arc surface.

[0009] In one embodiment, the connecting body further includes a reinforcing arm located on the side of the connecting arm facing away from the main body, and the two ends of the reinforcing arm are fixedly connected to the two mounting arms one-to-one, forming a second webbing avoidance area between the reinforcing arm and the connecting arm.

[0010] In one embodiment, the reinforcing arm has a third guide ramp between the side of the reinforcing arm adjacent to the connecting arm and the front side of the reinforcing arm.

[0011] In one embodiment, the spring arm protrudes from the rear side of the mounting arm to form a pressing portion.

[0012] In one embodiment, the connecting part is a socket or elastic buckle that engages with another fastener.

[0013] In one embodiment, the main body has a rectangular frame structure, including two first arms disposed opposite to each other and two second arms disposed opposite to each other between the two first arms. The first arms and the second arms are vertically connected, and the first arms form the mounting arms. The second arms form the connecting portion for threading the webbing. Alternatively, a horizontal arm is fixedly connected to the two first arms and parallel to the crossbar on the main body. The horizontal arm and a second arm together form the connecting portion for threading the webbing.

[0014] The replaceable fastener of this utility model features a detachable crossbar mounted on the connecting body, a spring arm with a first and second limiting part on the crossbar, and an mounting arm on the connecting body. This design allows for a detachable connection between the webbing and the replaceable fastener, facilitating the assembly and disassembly of the webbing. Furthermore, the crossbar and connecting body are assembled without gaps, preventing the webbing from being pulled off the crossbar through gaps, thus improving the stability of the connection. The spring arm abuts against the front and rear sides of the mounting arm via the first and second limiting parts, respectively, and the spring arm engages with the inner wall of the slot, enabling control of the crossbar and connecting body along the front and rear directions. The limiting in the left and right and up and down directions ensures the stability and reliability of the connection between the crossbar and the connecting body. It also increases the mating area between the spring arm and the mounting arm, distributing the external force acting on the connecting arm via the webbing to multiple connection points. This results in uniform force distribution on both ends of the connecting arm, avoiding deformation or breakage of the connection between the crossbar and the connecting body due to uneven force distribution, and helping to extend the service life of the replaceable fastener. The stability of the connection between the crossbar and the connecting body and the reliability of the replaceable fastener structure can be guaranteed without thickening the crossbar, which can reduce the amount of material used in the replaceable fastener and lower its production cost. Attached Figure Description

[0015] Figure 1 This is a perspective view of the replaceable fastener in the engaged state in Embodiment 1 of this utility model;

[0016] Figure 2 This is a perspective view of the replaceable fastener in the open state in Embodiment 1 of this utility model;

[0017] Figure 3 This is a perspective view of the replaceable fastener and another fastener in the open state in Embodiment 1 of this utility model;

[0018] Figure 4 This is a side view of the connecting body in Embodiment 1 of this utility model;

[0019] Figure 5 This is a front view of the connecting body in Embodiment 1 of this utility model;

[0020] Figure 6 This is a perspective view of the crossbar in Embodiment 1 of this utility model.

[0021] Figure 7 This is a perspective view of the crossbar from another angle in Embodiment 1 of this utility model;

[0022] Figure 8 This is a perspective view of the replaceable fastener in the engaged state in Embodiment 2 of this utility model;

[0023] Figure 9 This is a perspective view of the replaceable fastener in the engaged state in Embodiment 3 of this utility model. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] Example 1

[0026] Please combine Figure 1-7This utility model discloses a replaceable fastener, which includes a connecting body 100 and a crossbar 200. The connecting body 100 and the crossbar 200 are detachably connected so that webbing can be threaded onto the crossbar 200 or the webbing on the crossbar 200 can be removed. The connecting body 100 includes a main body 110, a connecting part 120 formed on the main body 110 for connecting with another fastener or external webbing, and two mounting arms 130 fixed on the main body 110 and arranged opposite to each other. The connecting part 120 of the connecting body 100 is a structure on the replaceable fastener for connecting with other fasteners or webbing. An installation area 140 for inserting the crossbar 200 is formed between the two mounting arms 130. In this embodiment, the mounting arms 130 and the main body 110 are integrally formed and both are made of rigid plastic or high-modulus plastic, so that the mounting arms 130 and the main body 110 have a strong ability to resist elastic deformation when subjected to force. In this way, during the assembly and disassembly of the crossbar 200 and during the process of the webbing pulling the crossbar 200 after the replacement fastener is assembled, the distance between the two mounting arms 130 remains unchanged. This can avoid the problem of the crossbar 200 being pulled out due to the deformation of the mounting arms 130, thereby improving the reliability of the replacement fastener in positioning the webbing and the stability of the replacement fastener structure. The mounting arm 130 has a slot 131 on the side adjacent to the mounting area 140 that passes through the front and rear sides of the mounting arm 130. The crossbar 200 includes a connecting arm 210 for passing through the webbing and two spring arms 220 fixed at both ends of the connecting arm 210 and slidably inserted into each slot 131. One end of the spring arm 220 is provided with a first limiting part 230 that abuts against the front side of the mounting arm 130, and the other end of the spring arm 220 is provided with a second limiting part 240 that abuts against the rear side of the mounting arm 130.The spring arm 220 can undergo a certain elastic deformation under external pushing or pressing force. Thus, during the insertion of the crossbar 200 into the mounting area 140 from the front side of the connecting body 100, the second limiting part 240 first abuts against the bottom surface of the slot 131 or the edge of the slot 131. Under the pressure of the bottom surface of the slot 131 (i.e., the side of the slot 131 away from the center of the mounting area) or the edge of the slot 131, the second limiting part 240 deflects and deforms towards the center of the mounting area 140. When the crossbar 200 slides within the mounting area 140 until the second limiting part 240 leaves the slot 131 area, the bottom surface of the slot 131 or the edge of the slot 131 makes constrained contact with the second limiting part 240, and the spring arm 220 returns to its original position, causing the second limiting part 240 to retract and retract. The rear side of arm 130 abuts against the first limiting part 230 and the front side of mounting arm 130. Simultaneously, the side of spring arm 220 facing away from mounting area 140 abuts against the bottom surface of slot 131. The front and rear sides of spring arm 220 respectively engage with the two opposite inner sides of slot 131. Thus, through the limiting engagement of the two spring arms 220 and the corresponding mounting arms 130, comprehensive limiting of the crossbar 200 and connecting body 100 in the front-back, left-right, and up-down directions can be achieved. This multi-directional limitation of the position between the crossbar 200 and connecting body 100 not only disperses the force but also improves the stability of the connection. The replaceable fastener bears weight evenly, and its overall performance and durability are close to that of a structure where the crossbar 200 and fastener are integrally formed. Furthermore, the detachable design of the crossbar 200 and connecting body 100 allows for individual replacement of the damaged component if either the crossbar 200 or the connecting body 100 is damaged, reducing the cost of using replaceable fasteners.

[0027] In this embodiment, the front-back 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; the rear side is the face away from the front side; and the upper surface is the face of each component away from the connecting part 120. In other embodiments, this explanation can also be used.

[0028] It should be noted that in this embodiment, the force exerted by the webbing on the crossbar 200 is distributed to the two spring arms 220, and further transmitted to the front and rear sides of the two mounting arms 130 via the first limiting part 230 and the second limiting part 240 on the spring arms 220. In this way, the force exerted on the crossbar 200 is evenly distributed to the front and rear sides of the mounting arms 130 and the inner side of the slot 131. The number of connection points between the crossbar 200 and the connecting body 100 increases, reducing the magnitude of the force on a single point on the crossbar 200, thereby avoiding the problem of the crossbar 200 breaking due to excessive local force on the crossbar 200. In addition, the spring arm 220 itself has a certain degree of elasticity. During the assembly of the crossbar 200 and the connecting body 100, the elasticity of the spring arm 220 can be used to press the spring arm 220 against the mounting arm 130. At the same time, when disassembling the crossbar 200 and the connecting body 100, the spring arm 220 can be pressed towards the center of the mounting area 140 so that the second limiting part 240 on the spring arm 220 leaves the rear side of the mounting arm 130, thereby separating the spring arm 220 from the mounting arm 130 and realizing the quick disassembly of the replaceable fastener.

[0029] In one embodiment, the front side of the mounting arm 130 has a first limiting notch 132 that communicates with the slot 131 and is used to insert the first limiting part 230, and the rear side of the mounting arm 130 has a second limiting notch 133 that communicates with the slot 131 and is used to insert the second limiting part 240. Further, in this embodiment, the first limiting notch 132 penetrates the inner side of the mounting arm 130 (i.e., the side of the mounting arm 130 facing the mounting area 140) and the outer side of the mounting arm 130 (i.e., the side of the mounting arm 130 facing away from the mounting area 140). When the spring arm 220 is fully matched with the mounting arm 130, the outer end face of the first limiting part 230 (the side of the first limiting part 230 facing away from the mounting area 140) is flush with the outer side of the mounting arm 130, so that the first limiting part 230 and the front side of the mounting arm 130 have a larger contact area, thereby improving the firmness of the connection between the spring arm 220 and the front side of the mounting arm 130.

[0030] The second limiting notch 133 penetrates the inner side of the mounting arm 130. The dimension of the second limiting notch 133 along the width direction of the replaceable fastener is smaller than the dimension of the mounting arm 130 along the width direction of the replaceable fastener, and the dimension of the second limiting notch 133 along the height direction of the replaceable fastener is larger than the dimension of the slot 131 along the height direction of the replaceable fastener. The shape of the second limiting part is adapted to the shape of the second limiting notch 133. In this way, while ensuring that the rear edge of the second limiting part 240 and the slot 131 have sufficient contact area and ensuring the firm connection between the spring arm 220 and the rear side of the mounting arm 130, when the crossbar 200 is disassembled, only the end of the spring arm 220 needs to be moved a short distance towards the center of the mounting area 140 to separate the second limiting part 240 from the rear side of the mounting arm 130, thereby reducing the difficulty of disassembling the crossbar 200 from the connecting body 100. In this embodiment, during the insertion of the spring arm into the slot, the second limiting part 240 abuts against the edge of the slot 131, causing the spring arm to deform under pressure. When the dimension of the second limiting notch 133 along the width direction of the replaceable fastener is equal to the dimension of the mounting arm 130 along the width direction of the replaceable fastener, and the dimension of the second limiting notch 133 along the height direction of the replaceable fastener is equal to the dimension of the slot 131 along the height direction of the replaceable fastener, during the insertion of the spring arm into the slot, the second limiting part 240 abuts against the bottom surface of the slot 131, causing the spring arm to deform under pressure.

[0031] In one embodiment, the crossbar 200 has an n-shaped structure, and the front ends of the two elastic arms 220 are respectively fixedly connected to the two ends of the connecting arm 210. In another embodiment, the front side of the connecting arm 210 forms a first webbing limiting area 211 between the two elastic arms 220, and the rear side of the connecting arm 210 forms a second webbing limiting area 212 between the two elastic arms 220. That is, the crossbar 200 has an H-shaped structure. In this way, the first webbing limiting area 211 and the second webbing limiting area 212 on both sides of the connecting arm 210 can restrict the webbing between the two elastic arms 220, so as to avoid uneven force on the crossbar 200 caused by lateral displacement of the webbing along the width direction of the replaceable fastener, which could lead to overload and breakage of the crossbar 200. Preferably, in this embodiment, the dimension of the first webbing limiting area 211 along the thickness direction of the replaceable fastener is smaller than the dimension of the second webbing limiting area 212 along the thickness direction of the replaceable fastener. That is, the connecting arm 210 is located in the mounting area 140 near the front side of the mounting arm 130 so that the webbing threaded on the connecting arm 210 can be led out through the front side of the replaceable fastener.

[0032] The rear side of the connecting arm 210 has a first guide slope 213 and a second guide slope 214 located within the second webbing limiting area 212 and extending along the length direction of the connecting arm 210. The first guide slope 213 and the second guide slope 214 are set at an included angle, and an arc-shaped transition portion 215 is provided at the connection portion 120 between the first guide slope 213 and the second guide slope 214. It can also be understood that the rear side of the connecting arm 210 has a ridge-like structure, or the cross-section of the rear side of the connecting arm 210 has a V-shaped structure. In this way, the rear side of the connecting arm 210 has a large space. After the crossbar 200 is installed on the connecting body 100, the webbing can be wrapped from the rear side of the connecting arm 210 to the front side of the connecting arm 210 and fixed. The V-shaped structure on the rear side of the connecting arm 210 can reduce the difficulty of threading the webbing. The arc-shaped transition portion 215 reduces wear on the webbing at the connection point 120 between the first guide slope 213 and the second guide slope 214, thereby extending the service life of the webbing.

[0033] Furthermore, the side of the connecting arm 210 adjacent to the main body 110 is a convex arc surface. Since the bending moment at the middle of the connecting arm 210 is greater than the bending moment at the end of the connecting arm 210 when the crossbar 200 with the webbing is connected to the mounting arms 130 on both sides under external tension, in this embodiment, the side of the connecting arm 210 adjacent to the main body 110 is designed as a convex arc surface, which thickens the middle of the connecting arm 210, improving its strength and preventing it from breaking, thus extending the service life of the crossbar 200. Additionally, in this embodiment, the spring arm 220 protrudes from the rear side of the mounting arm 130 to form a pressing part 221. Thus, during use, the user can press the pressing part 221 towards the middle of the mounting area 140, causing the spring arm 220 to deform, thereby causing the second limiting part 240 to move away from the rear side of the mounting arm 130.

[0034] In this embodiment, after the crossbar 200 is assembled with the connecting body 100, a first webbing avoidance area 111 is formed between the connecting arm 210 and the main body 110, so that there is sufficient space between the connecting arm 210 and the main body 110 to accommodate the webbing. The connecting body also includes a reinforcing arm 150, which is located on the side of the connecting arm 210 facing away from the main body 110, and both ends of the reinforcing arm 150 are fixedly connected to the two mounting arms 130 one-to-one. A second webbing avoidance area 112 is formed between the reinforcing arm 150 and the connecting arm 210, so that there is sufficient space between the reinforcing arm 150 and the connecting arm 210 to accommodate the webbing. In this embodiment, the reinforcing arm 150, the two mounting arms 130, and the main body 110 are integrally formed. The mating part of the reinforcing arm 150 and the mounting arm 130 is provided with an arc-shaped reinforcing part 151 to improve the strength of the connection part 120 between the reinforcing arm 150 and the mounting arm 130. Preferably, the arc-shaped reinforcing part 151 at the mating part of the reinforcing arm 150 and the mounting arm 130 has a concave arc-shaped structure. By fixing the reinforcing arm 150 to the ends of the two mounting arms 130, the stability of the mounting arm 130 structure is improved, thereby limiting the deformation of the mounting arm 130 and preventing the mounting arm 130 from deforming under external tension, which could lead to the crossbar 200 being pulled off the mounting arm 130.

[0035] Furthermore, a third guide slope 152 is provided between the side of the reinforcing arm 150 adjacent to the connecting arm 210 and the front side of the reinforcing arm 150. In this way, during the use of the replaceable fastener, when the webbing is subjected to external tension, it will be tightened along the height direction of the replaceable fastener. The third guide slope 152 can be used as a guide plane for the webbing to avoid the problem of webbing breakage and damage caused by the long-term compression and wear of the webbing due to the corner structure when the joint between the side of the reinforcing arm 150 adjacent to the connecting arm 210 and the front side of the reinforcing arm 150 is a corner structure, thereby extending the service life of the webbing.

[0036] In this embodiment, the connecting part 120 is a plug hole or elastic buckle for interlocking with another fastener. That is, the replaceable fastener in this embodiment is used as a male or female buckle for a snap fastener. The connecting part 120 and the mounting arm 130 are located at both ends of the main body 110. This replaceable fastener needs to be interlocked with another fastener to connect the two sections of webbing. Specifically, when the replaceable fastener is used as a female buckle for a snap fastener, the connecting part 120 is a plug hole that penetrates the side of the main body 110 facing away from the mounting arm 130 and forms pressing notches on both sides of the main body 110. When the replaceable fastener is fastened with another external fastener (male buckle), the two elastic buckle feet of the male buckle pass through the plug hole and are inserted into the two pressing notches one by one. The elastic buckle feet have shoulders that abut against the lower edge of the pressing notches. Thus, through the mutual constraint of the pressing notches and the elastic buckle feet, the interlocking of the replaceable fastener with the external fastener can be achieved. When the replaceable fastener is used as a male buckle for a snap fastener (e.g., ... Figure 3As shown, two elastic buckle feet are provided opposite to one end of the main body 110 facing away from the mounting arm 130. The two elastic buckle feet together form the connecting part 120 of the replaceable fastener. The elastic buckle feet are provided with a shoulder that is limited and engaged with the pressing notch of another external fastener (female fastener). Of course, the connecting part 120 of the replaceable fastener can also be connected to the male or female buckle of other buckles on the market. The specific structural form of the connecting part 120 is not covered by this solution.

[0037] In addition, for the snap fastener, either the male or female snap fastener can use the quick-release structure of this embodiment. In this case, only the crossbar 200 of one of the male or female snap fasteners can be detached, meaning that only the webbing at one end of the snap fastener can be attached or detached. Alternatively, both the male and female snap fasteners can use the replaceable fasteners of this embodiment, meaning that both the male and female snap fasteners are equipped with detachable crossbars 200, and the webbing at both ends of the snap fastener can be attached or detached.

[0038] Example 2

[0039] Please see Figure 8 The difference between this embodiment and Embodiment 1 is that in this embodiment, the main body 110 has a rectangular frame structure, including two first arms arranged opposite each other and two second arms arranged opposite each other between the two first arms. The first arms and the second arms are vertically connected, that is, the main body 110 has a U-shaped structure. In this embodiment, the first arm is defined as an arm extending along the height direction of the replaceable fastener, and the second arm is an arm extending along the width direction of the replaceable fastener. The first arm forms a mounting arm 130. Thus, when the wide surface of the entire main body 110 is attached to the vertical plane, the crossbar 200 is set on the front or rear side of the main body 110. Further, the second arm forms a connecting part 120 for threading the webbing. Of course, according to the threading requirements of the webbing, the webbing can also be fixedly threaded onto the first arm. At this time, the entire replaceable fastener forms a H-shaped buckle. The structure of the mounting arm 130 and the crossbar 200 in this embodiment are exactly the same as those in Embodiment 1. For details, please refer to the description of the structure and function of the mounting arm 130 and the crossbar 200 in Embodiment 1.

[0040] Example 3

[0041] Please see Figure 9The difference between this embodiment and Embodiment 2 is that a horizontal arm 160, which is fixedly connected to the two first arms and parallel to the crossbar 200, is fixed on the main body 110. The horizontal arm 160 and a second arm together form a connecting part 120 for threading the webbing. That is, the entire replaceable fastener forms a ladder-shaped connecting buckle or a U-shaped connecting buckle. Of course, the horizontal arm 160 can also be replaced with the crossbar 200, that is, two or more crossbars 200 are arranged side by side in the main body with a rectangular frame structure to meet the user's webbing assembly and disassembly needs. The structure of the mounting arm 130 and the crossbar 200 in this embodiment are exactly the same as those in Embodiment 1. For details, please refer to the description of the structure and function of the mounting arm 130 and the crossbar 200 in Embodiment 1.

[0042] The aforementioned replaceable fastener, by detachably mounting a crossbar 200 on the connecting body 100, and providing a spring arm 220 with a first limiting part 230 and a second limiting part 240 on the crossbar 200, and a mounting arm 130 on the connecting body 100, achieves a detachable connection between the webbing and the replaceable fastener, facilitating the assembly and disassembly of the webbing. Furthermore, the crossbar 200 and the connecting body 100 are assembled without any gaps, preventing the webbing from being pulled off the crossbar 200 through any gaps, thus improving the stability of the connection between the webbing and the crossbar 200. The spring arm 220 abuts against the front and rear sides of the mounting arm 130 respectively through the first limiting part 230 and the second limiting part 240, and the spring arm 220 cooperates with the inner wall of the slot 131, achieving a secure connection between the crossbar 200 and the connecting body 100. With limiting the movement along the front-back, left-right, and up-down directions, the connection between the crossbar 200 and the connecting body 100 at position 120 is stable and reliable. This also increases the mating area between the spring arm 220 and the mounting arm 130, distributing the external force acting on the connecting arm 210 via the webbing to multiple connection points. This ensures uniform force distribution at both ends of the connecting arm 210, preventing deformation or breakage of the connection between the crossbar 200 and the connecting body 100 at position 120 due to uneven force distribution. This helps extend the service life of the replaceable fastener. The stability of the connection between the crossbar 200 and the connecting body 100 and the reliability of the replaceable fastener structure can be guaranteed without thickening the crossbar 200, reducing the material usage and production cost of the replaceable fastener.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A replaceable fastener characterized by, The device includes a connecting body and a crossbar. The connecting body includes a main body, a connecting part formed on the main body for connecting with another fastener or external webbing, and two mounting arms fixed on the main body and arranged opposite to each other. An installation area for inserting the crossbar is formed between the two mounting arms. A slot is provided on the side of the mounting arm adjacent to the installation area, penetrating the front and rear sides of the mounting arm. The crossbar includes a connecting arm for passing through the webbing, and two spring arms fixed at both ends of the connecting arm and slidably inserted into each slot. One end of the spring arm is provided with a first limiting part that abuts against the front side of the mounting arm, and the other end of the spring arm is provided with a second limiting part that abuts against the rear side of the mounting arm.

2. The replaceable fastener of Claim 1 wherein, The front side of the mounting arm has a first limiting notch that communicates with the slot and is used to fit the first limiting part, and the rear side of the mounting arm has a second limiting notch that communicates with the slot and is used to fit the second limiting part.

3. The replaceable fastener of Claim 1 wherein, The front side of the connecting arm forms a first webbing limiting area between the two elastic arms, and the rear side of the connecting arm forms a second webbing limiting area between the two elastic arms.

4. The replaceable fastener of Claim 3 wherein, The rear side of the connecting arm has a first guide slope and a second guide slope located within the second webbing limiting area and extending along the length of the connecting arm. The first guide slope and the second guide slope are set at an angle, and the connection between the first guide slope and the second guide slope is provided with an arc-shaped transition portion.

5. The replaceable fastener of Claim 1 wherein, The side of the connecting arm adjacent to the main body is a convex arc surface.

6. The replaceable fastener of Claim 1 wherein, The connecting body also includes a reinforcing arm, which is located on the side of the connecting arm facing away from the main body. The two ends of the reinforcing arm are fixedly connected to the two mounting arms one-to-one. A second webbing avoidance area is formed between the reinforcing arm and the connecting arm.

7. The replaceable fastener of Claim 6 wherein, The reinforcing arm has a third guide ramp between the side of the reinforcing arm adjacent to the connecting arm and the front side of the reinforcing arm.

8. The replaceable fastener of Claim 1 wherein, The spring arm protrudes from the rear side of the mounting arm to form a pressing part.

9. The replaceable fastener of any one of claims 1-8, wherein, The connecting part is a socket or elastic buckle that is inserted and mated with another fastener.

10. The replaceable fastener of any one of claims 1-8, wherein, The main body has a rectangular frame structure, including two first arms arranged opposite each other and two second arms arranged opposite each other between the two first arms. The first arms and the second arms are vertically connected, and the first arms form the mounting arms. The second arms form the connecting parts for threading the webbing, or a horizontal arm is fixed on the main body and is fixedly connected to the two first arms and parallel to the crossbar. The horizontal arm and a second arm together form the connecting parts for threading the webbing.

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