Novel plug-in type fastener
By using a structure of connecting the locking member and the spring in the plug-and-extension buckle, combined with auxiliary parts and limiting parts, the problems of unstable connection and insufficient safety of the buckle are solved, and stable and safe use of the buckle is achieved.
Patent Information
- Application Number
- CN202421704937.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The existing plug-and-unit buckles have problems with insufficient connection instability and security when used.
A new type of plug-and-pull buckle is designed, which adopts a structure that connects the locking member to the tension spring. The locking member rotates and moves under the action of the tension spring to achieve stable locking of the male buckle and the female buckle, and the impact force is shared through auxiliary parts to avoid deformation of the lock tongue and ensure stable connection with the limiting member.
It improves the connection stability and safety of the male and female buckles, ensures the safety and life of the buckles in use, and facilitates plugging and unplugging operations.
Smart Images
Figure CN223068073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to a novel plug-in fastener. Background Art
[0002] Fasteners are widely used, especially in safety belt devices, such as those used in safety belt devices of infant carriers (baby strollers, high chairs, diaper changing tables, car seats configured in cars, etc.), and can also be used in other applicable occasions.
[0003] Among fasteners, the most common one is the plug-in fastener, that is, the female fastener and the male fastener are connected in a plug-in manner. Since fasteners are generally used for safety belts to ensure safety, in order to ensure the safety of the fastener in the use state, the stability after the male fastener and the female fastener are inserted and connected must be ensured. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a novel plug-in fastener, and the stability after the male fastener and the female fastener are connected can be ensured.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A novel plug-in fastener includes a female fastener and a male fastener. The female fastener is provided with a plugging cavity, and the male fastener is provided with a locking tongue. The locking tongue includes a body and shoulders protruding from both sides of the body. The fastener further includes a tension spring and two locking members which are spaced apart and respectively pivotally connected to both sides of the female fastener. One ends of the two locking members are located in the plugging cavity and are connected to the tension spring, and the other ends extend out of the plugging cavity; locking parts are respectively arranged on opposite sides of the two locking members. After the locking tongue is inserted into the plugging cavity, under the action of the tension spring, the ends of the two locking members connected to the tension spring rotate and move relatively closer, and the locking parts on the two locking members are respectively located on both sides of the locking tongue body and on the side of the corresponding shoulder facing outside the plugging cavity, so as to lock the male fastener and the female fastener in a connected state.
[0007] Each of the locking members is rotatably connected to the female fastener through a rotating shaft, and the end of the locking part facing the inside of the plugging cavity is located between the tension spring and the rotating shaft.
[0008] Auxiliary members are respectively arranged on both sides in the plugging cavity, and the two auxiliary members are located between the two locking members; and the auxiliary members are arranged such that when the male fastener and the female fastener are in a connected state, the two locking members respectively abut against the corresponding side auxiliary members.
[0009] The two auxiliary members are symmetrically arranged about the central axis of the plugging cavity.
[0010] A groove is recessed on the side of the locking member facing the auxiliary member. Correspondingly, the side of the auxiliary member facing the locking member is set to a shape that can match the groove.
[0011] When the male buckle and the female buckle are in a connected state, the two auxiliary parts are respectively located on both sides of the front end of the lock tongue.
[0012] The locking member includes a main body, an operating portion and a connecting portion respectively arranged at both ends of the main body. The end of the operating portion away from the main body extends outside the insertion cavity, and the two connecting portions are connected to a tension spring; the opposite sides of the two main bodies of the locking member are set as locking portions.
[0013] When the female buckle and the male buckle are in a separated state or a connected state, the surfaces of the opposite sides of the two main bodies of the locking member are both arranged as inclined surfaces, and in the inner and outer directions of the insertion cavity, the distance between the inclined surfaces of the opposite sides of the two main bodies of the locking member increases sequentially from the inside to the outside.
[0014] The two side surfaces of the lock tongue body are also set as corresponding inclined surfaces.
[0015] The groove on the locking member is arranged on the connecting portion or at the intersection of the connecting portion and the main body.
[0016] The two shoulders are respectively arranged on both sides of the front end of the lock tongue body.
[0017] A limiting member is arranged in the insertion cavity. Correspondingly, a limiting groove is arranged at the front end of the lock tongue. When the female buckle and the male buckle are in a connected state, the limiting member is inserted into the limiting groove.
[0018] The limiting groove is arranged in the middle of the front end of the lock tongue. Correspondingly, the limiting member is arranged at the middle position of the insertion cavity.
[0019] Because the present utility model adopts the above technical solution, the following beneficial effects are obtained:
[0020] 1. The insertion and extraction operations of the male buckle and the female buckle are convenient;
[0021] 2. Because one end of the two locking members located in the insertion cavity is connected to a tension spring, after the lock tongue is inserted into the insertion cavity, under the action of the tension spring, the ends of the two locking members connected to the tension spring will automatically rotate and move relatively close to each other. Thus, the locking portions on the two locking members will be driven to respectively extend into the side of the corresponding shoulders on the lock tongue facing outside the insertion cavity, that is, blocking the outward movement direction of the shoulders on both sides of the front end of the lock tongue. Therefore, the male buckle cannot move outwards, and thus, the stability after the connection of the male buckle and the female buckle can be ensured, that is, the safety of the buckle of the present utility model in the use state can be ensured;
[0022] 3. Since one end of the two locking members located in the insertion cavity is connected to a tension spring, even if one accidentally presses the operating part of one of the locking members by mistake, the end of the misoperated locking member connected to the tension spring will rotate accordingly and drive its locking part to disengage from the locking groove on the corresponding side of the locking tongue. The connecting part of the other locking member will only be pulled to maintain a tendency to rotate and move in the direction of this locking member, that is, on the contrary, the locking part of the other locking member will remain in a state of extending into the locking groove on the other side of the locking tongue. In this way, the tendency of the male buckle to move outwards will be blocked by the main body of the other locking member, so that the male buckle will not move outwards and disengage from the female buckle. In this way, the stability after the connection between the female buckle and the male buckle is further ensured, that is, the safety when using the buckle of the present utility model is further ensured;
[0023] 4. Since the opposite sides of the main bodies of the two locking members are set as locking parts, the overall size of the locking parts will be relatively large. Therefore, the locking parts as a whole can withstand greater forces. Thus, when pulling the male buckle outwards without pressing the operating parts of the two locking members, the male buckle will be even less likely to be pulled outwards;
[0024] 4. Since the above two auxiliary parts are provided, when the male buckle is inserted into the insertion cavity, the locking groove of the locking tongue will not bear all the impact forces of the locking parts hitting due to the action of the tension spring. The auxiliary parts will share part of the impact forces. In this way, it can be avoided that after the male and female buckles are inserted too many times, the locking tongue is subjected to too many impact forces and deformed, thus avoiding the instability after connection with the female buckle caused by the deformation of the locking tongue. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a three-dimensional schematic diagram of the buckle of the present utility model;
[0026] Figure 2 is a main cross-sectional schematic diagram of the buckle of the present utility model when the locking mechanism is in the locked state;
[0027] Figure 3 is an exploded schematic diagram of the buckle of the present utility model;
[0028] Figure 4 is a cross-sectional schematic diagram of the female buckle of the buckle of the present utility model;
[0029] Figure 5 is a main cross-sectional schematic diagram of the buckle of the present utility model when the locking mechanism is in the unlocked state. DETAILED DESCRIPTION OF THE INVENTION
[0030] As Figures 1 to 4As shown, the pluggable fastener of the present utility model includes a female buckle 1 and a male buckle 2. The female buckle 1 is provided with a plugging cavity 11, and the male buckle 2 is provided with a locking tongue 21. The locking tongue 21 includes a body 210 and shoulders 211 protruding from both sides of the body 210. The fastener further includes a tension spring 3 and two locking members 4 spaced apart and pivotally connected to both sides of the female buckle 1 respectively. One ends of the two locking members 4 are located inside the plugging cavity 11 and connected to the tension spring 3, and the other ends extend outside the plugging cavity 11. Locking parts are respectively arranged on the opposite sides of the two locking members 4. After the locking tongue 21 is inserted into the plugging cavity 11, under the action of the tension spring 3, the ends of the two locking members 4 connected to the tension spring 3 rotate and move relatively closer, and the locking parts on the two locking members 4 are respectively located on both sides of the locking tongue body 210 and on the side of the corresponding shoulder 211 facing outside the plugging cavity 11, so as to lock the male buckle 2 and the female buckle 1 in a connected state.
[0031] Each of the locking members 4 is rotatably connected to the female buckle 1 through a rotating shaft 5, and the end of the locking part facing inside the plugging cavity 11 is located between the tension spring 3 and the rotating shaft 5. Only with such a positional relationship can the above actions be achieved. The way that the locking member 4 is rotatably connected to the female buckle 1 through a rotating shaft 5 is a conventional technology, so it will not be elaborated here.
[0032] Preferably, auxiliary members 12 are respectively arranged on both sides inside the plugging cavity 11, and the two auxiliary members 12 are located between the two locking members 4; and the auxiliary members 12 are arranged such that when the male buckle 2 and the female buckle 1 are in a connected state, the opposite sides of the two locking members 4 respectively abut against the corresponding auxiliary members 12. Thus, after the male buckle 2 is inserted into the plugging cavity 11, both sides of the locking tongue body 210 will not bear all the impact forces of the locking parts of the locking members hitting due to the action of the tension spring 3. The auxiliary members 12 will share part of the impact force. In this way, it can be avoided that after the male buckle 2 and the female buckle 1 are plugged too many times, the locking tongue 21 is subjected to too much impact force and deformed, thereby avoiding the instability after being connected to the female buckle 1 due to the deformation of the locking tongue 21, and also prolonging the service life of the locking tongue 21. Therefore, the fastener of the present utility model has a long service life.
[0033] Moreover, when the female buckle 1 and the male buckle 2 are in a separated state, under the action of the tension spring 3, the ends of the two locking members 4 located in the insertion cavity 11 rotate relatively closer to each other until the grooves of the two locking members 4 respectively abut against the auxiliary members 12 on the corresponding sides. The ends of the two locking members 4 connected to the tension spring 3 can no longer rotate relatively closer to each other. In this state, there is a space between the two locking members 4 for the insertion of the locking tongue 21. That is to say, when the female buckle 1 and the male buckle 2 are in a separated state, the two locking members 4 are both in this stable relative position, so that the position of the space between them for the insertion of the locking tongue 21 is also relatively fixed. In this way, the insertion operation of the male buckle 2 and the female buckle 1 is more convenient. If the two auxiliary members 12 are not provided, the two locking members 4 and the tension spring 3 may rotate as a whole and deflect to one side, and the deflection angle is uncertain. In this case, the position of the space between the two locking members 4 is not relatively fixed but variable, which will bring certain inconvenience to the insertion of the locking tongue 21 of the male buckle. In addition, due to the existence of the two auxiliary members 12, the tension spring 3 will also be in a state with a more appropriate degree of tension, and will not completely loosen, resulting in the possibility of the disconnection of the tension spring 3 from the two locking members 4. Thus, it also avoids the possibility that the tension spring 3 cannot pull the locking members 4 to rotate, causing the locking part to automatically extend to the side outside the insertion cavity 11 facing the corresponding shoulder 211. Furthermore, it also ensures the stability after the connection of the female buckle 1 and the male buckle 2.
[0034] Preferably, the two auxiliary members 12 are symmetrically arranged about the central axis of the insertion cavity 11. In this way, the space of the insertion cavity 11 located between the two locking members 4 is also the middle position of the insertion cavity 11, that is, it ensures the middle position of the insertion cavity 11 where the locking tongue 21 is inserted, so that the forces on both sides of the locking tongue 21 are more uniform.
[0035] Preferably, when the male buckle 2 and the female buckle 1 are in a connected state, the two auxiliary members 12 are respectively located on both sides of the front end of the locking tongue 21. The two auxiliary members 12 are arranged in this way, which will neither affect the insertion of the locking tongue 21 nor affect the tension spring 3. In other embodiments, the two auxiliary members 12 can also be arranged at other suitable positions.
[0036] An arc-shaped groove 44 is recessed on the side of the locking member 4 facing the auxiliary member 12. Correspondingly, the side of the auxiliary member 12 facing the locking member 4 is set to a shape that can match the groove 44. With such a setting, the arrangement of the auxiliary member 12 in the insertion cavity 11 is more convenient. Preferably, the auxiliary member 4 is integrally set in a round rod shape, so as to be simpler.
[0037] The auxiliary member 12 can be formed by extending upward from the bottom wall of the insertion cavity 11, or by extending downward from the top wall of the insertion cavity 11, or by extending upward from the bottom wall of the insertion cavity 11 for a first section and extending downward from the top wall for a second section, and the first section and the second section together form the auxiliary member 12.
[0038] In this embodiment, the locking member 4 includes a main body 41, an operating portion 42 and a connecting portion 43 respectively arranged at two ends of the main body 41. One end of the operating portion 42 away from the main body 41 extends out of the insertion cavity 11, and the two connecting portions 43 are connected to the tension spring 3; the opposite sides of the two locking member main bodies 41 are set as locking portions, so that when the male buckle 2 and the female buckle 1 are connected, the opposite sides of the two locking member main bodies 41 are respectively located on the side of the corresponding side shoulder 211 facing away from the insertion cavity 11.
[0039] Preferably, the main body 41, the operating portion 42 and the connecting portion 43 are integrally formed.
[0040] In other embodiments (not shown in the figure), it is also possible that a locking portion is respectively protruded on the opposite sides of the two locking member main bodies 41, and the shape of the locking portion is not limited as long as it can achieve the above functions.
[0041] Preferably, the arc-shaped groove 44 is arranged on the connecting portion 43 or at the intersection of the connecting portion 43 and the main body 41, so as to avoid interfering with the cooperation between the main body 41 and the side shoulder 211.
[0042] In this embodiment, the two side shoulders 211 are respectively arranged on both sides of the front end of the lock tongue body 210, so that the side shoulders 211 can penetrate deeper into the insertion cavity 11.
[0043] Preferably, when the female buckle 1 and the male buckle 2 are in a separated state or a connected state, the surfaces of the opposite sides of the two locking member main bodies 41 are both arranged as inclined surfaces, and in the inner-outer direction of the insertion cavity, the distance between the inclined surfaces of the opposite sides of the two locking member main bodies 41 increases sequentially from the inside to the outside (as shown in Figure 2). Correspondingly, the two side surfaces of the lock tongue body 210 are also set as corresponding inclined surfaces 212, that is, the width of the lock tongue body 210 increases sequentially from the front to the back. Thus, after the female buckle 1 and the male buckle 2 are connected, the opposite sides of the two locking member main bodies 41 can better cooperate with the two side surfaces of the lock tongue body 210.
[0044] Because of the above settings, when connecting the female buckle 1 and the male buckle 2, only need to insert the locking tongue 21 into the insertion cavity 11 of the female buckle 1 in the direction between the two locking members 4 (that is, in the direction between the main bodies 41 of the two locking members). The shoulders 211 on both sides of the front end of the locking tongue 21 will respectively contact the inclined surfaces on the opposite sides of the main bodies 41 of the two locking members. Thus, the inclined surfaces can not only play a guiding role during the insertion of the male buckle 2, but also during the insertion of the locking tongue 21, the two locking members 4 will be pushed to rotate in the reverse direction. As a result, the ends of the two locking members 4 connected to the tension spring 3 will rotate and move away from each other, and the arc-shaped grooves 44 of the two locking members 4 will respectively disengage from the corresponding auxiliary members 12 on the corresponding sides; when the shoulders 211 on both sides of the front end of the locking tongue 21 move past the main bodies 41 of the two locking members 4 respectively, under the action of the tension spring 3, the ends of the two locking members 4 connected to the tension spring 3 will automatically rotate and move closer to each other. When the arc-shaped grooves 44 of the two locking members 4 are respectively engaged with the corresponding auxiliary members 12 on the corresponding sides again, the two locking members 4 can no longer rotate and approach relatively. And at this time, the opposite sides of the main bodies 41 of the two locking members (that is, the locking parts) are respectively located on both sides of the locking tongue body 210 and are respectively located on the side of the corresponding shoulder 211 facing outside the insertion cavity 11, that is, blocking the direction of the outward movement of the shoulders 211 on both sides of the front end of the locking tongue 21. Thus, the male buckle 2 cannot move outwards, and the female buckle 1 is connected to the male buckle 2.
[0045] When pulling out the male buckle 2, as Figure 5 shown, it is necessary to relatively press the operating parts 42 of the two locking members 4. The two locking members 4 respectively rotate around the corresponding rotating shafts 5. As a result, the ends of the two locking members 4 connected to the tension spring 3 rotate and move away from each other. The front ends of the main bodies 41 of the two locking members no longer block the direction of the outward movement of the shoulders 211 on both sides of the front end of the locking tongue 21. At this time, the male buckle 2 can be pulled outwards, so that the locking tongue 21 disengages from the insertion cavity 11, thereby enabling the male buckle 2 to disengage from the female buckle 1.
[0046] As described above, the plugging and unplugging operations of the female buckle 1 and the male buckle 2 of the present utility model are very convenient.
[0047] If directly pulling out the male buckle 2 without pressing the operating parts 42 of the two locking members 4, the shoulders 211 on both sides of the front end of the male buckle locking tongue body 210 will press the front ends of the main bodies 41 of the corresponding sides of the locking members. In this way, on the contrary, it will cause a further tendency for the sides of the two locking members 4 connected to the tension spring 3 to rotate and approach relatively, that is, making the combination of the front end of the main body 41 of the locking member and the shoulder 211 tighter. Thus, the male buckle 2 cannot move outwards to disengage from the female buckle, and further ensures the stability after the female buckle 1 is connected to the male buckle 2.
[0048] In addition, since the opposite sides of the two locking member bodies 41 of the present utility model are provided as locking portions, the overall size of the locking portions will be relatively larger, so the locking portions as a whole can withstand greater forces. Thus, when pulling the male buckle 2 outwards without pressing the operating portions 42 of the two locking members 4, the male buckle 2 is less likely to be pulled outwards and separated from the female buckle 1, thereby further ensuring the stability after the connection between the female buckle 1 and the male buckle 2.
[0049] Even if one of the operating portions 42 of the locking member 4 is accidentally pressed due to misoperation, causing the locking member 4 to rotate and drive its locking portion to disengage from the shoulder 211 on the corresponding side of the locking tongue 21, the connecting portion 43 of the other locking member 4 will only be pulled to maintain a tendency to rotate and move towards the direction of that locking member 4. That is, on the contrary, it will cause the main body 41 (i.e., the locking portion) of the other locking member 4 to be more tightly pressed against the corresponding side of the locking tongue body 210. Thus, the main body 41 of the other locking member 4 can more effectively block the tendency of the male buckle 2 to move outwards, so the male buckle 2 still cannot move outwards and separate from the female buckle 1. Therefore, the stability after the connection between the female buckle 1 and the male buckle 2 is further ensured, that is, the safety during the use of the buckle of the present utility model is further ensured.
[0050] In this embodiment, a limiting member 13 is provided in the insertion cavity 11. Correspondingly, a limiting groove 213 is provided at the front end of the locking tongue 21. When the female buckle 1 and the male buckle 2 are in a connected state, the limiting member 13 is inserted into the limiting groove 213. With such a setting, the male buckle 2 after being connected to the female buckle 1 will not shake and will not deviate to one side, thereby ensuring that the overall male buckle 2 and female buckle 1 after connection are in a stable state, that is, ensuring the stability of the buckle of the present utility model during use, and further ensuring its safety during use.
[0051] Preferably, the limiting groove 213 is provided in the middle of the front end of the locking tongue 21. Correspondingly, the limiting member 13 is provided at the middle position of the insertion cavity 11. Thus, the forces on both sides of the locking tongue 21 are more uniform.
[0052] Similarly, the limiting member 13 can be formed by extending upwards from the bottom wall of the insertion cavity 11, or can be formed by extending downwards from the top wall of the insertion cavity 11, or the insertion cavity 11 can extend upwards from the bottom wall for a third section and extend downwards from the top wall for a fourth section, and the third section and the fourth section together form the limiting member. With such a setting, the forces on the front end of the locking tongue 21 can be more uniform.
[0053] The female buckle 1 is also provided with a first connecting rod 14 for connecting with the webbing, the male buckle 2 is provided with a second connecting rod 22 for connecting with the webbing, and the male buckle further includes a connecting seat 20, the locking tongue 21 is provided on one side of the connecting seat 20, and the front end of the locking tongue 21 refers to the side of the locking tongue 21 away from the connecting seat 20. The other designs of the first connecting rod 14, the second connecting rod 22, the female buckle 1, and the male buckle 2 can be any known and feasible structure, which is not the invention point of the utility model and is not described here.
[0054] In the above-mentioned orientation descriptions, the orientations or positional relationships indicated by “front”, “back”, “left”, “right”, “up”, “down”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings. These orientation descriptions are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When the visual observation changes, the above-mentioned orientation or positional relationship will also change accordingly, and therefore cannot be understood as a limitation on the utility model.
[0055] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A new type of pluggable fastener, comprising a female buckle and a male buckle. The female buckle is provided with a plugging cavity, and the male buckle is provided with a locking tongue, characterized in that: The latch tongue includes a body and shoulders protruding from both sides of the body. The buckle further includes a tension spring, and two locking members spaced apart and pivotally connected to both sides of the female buckle respectively. One ends of the two locking members are located in the insertion cavity and connected to the tension spring, and the other ends extend out of the insertion cavity; locking portions are respectively provided on the opposite sides of the two locking members. After the latch tongue is inserted into the insertion cavity, under the action of the tension spring, the one ends of the two locking members connected to the tension spring rotate and move relatively closer, and the locking portions on the two locking members are respectively located on both sides of the latch tongue body and on the side of the corresponding shoulder facing outside the insertion cavity.
2. The novel pluggable fastener according to claim 1, characterized in that: Each of the locking members is rotatably connected to the female buckle through a rotating shaft, and the end of the locking portion facing into the insertion cavity is located between the tension spring and the rotating shaft.
3. The novel pluggable fastener according to claim 1, characterized in that: Auxiliary members are respectively provided on both sides in the insertion cavity, and the two auxiliary members are located between the two locking members; and the auxiliary members are arranged such that when the male buckle and the female buckle are in a connected state, the two locking members respectively abut against the corresponding side auxiliary members.
4. The novel pluggable fastener according to claim 2, characterized in that: Auxiliary members are respectively provided on both sides in the insertion cavity, and the two auxiliary members are located between the two locking members; and the auxiliary members are arranged such that when the male buckle and the female buckle are in a connected state, the two locking members respectively abut against the corresponding side auxiliary members.
5. The novel pluggable fastener according to claim 3 or 4, characterized in that: The two auxiliary members are symmetrically arranged about the central axis of the insertion cavity.
6. The novel pluggable fastener according to claim 3, wherein: When the male buckle and the female buckle are in a connected state, the two auxiliary members are respectively located on both sides of the front end of the latch tongue.
7. The novel pluggable fastener according to claim 4, wherein: When the male buckle and the female buckle are in a connected state, the two auxiliary members are respectively located on both sides of the front end of the latch tongue.
8. The novel pluggable fastener according to claim 3 or 4 or 6 or 7, characterized in that: A groove is recessed on the side of the locking member facing the auxiliary member. Correspondingly, the side of the auxiliary member facing the locking member is set to a shape that can match the groove.
9. The novel pluggable fastener according to any one of claims 1 to 4, 6 to 7, characterized in that: The locking member includes a main body, an operation portion and a connecting portion respectively provided at both ends of the main body. The end of the operation portion away from the main body extends out of the insertion cavity, and the two connecting portions are connected to the tension spring; the opposite sides of the two locking member main bodies are set as locking portions.
10. The novel pluggable buckle according to claim 9, characterized in that: When the female buckle and the male buckle are in a separated state or a connected state, the surfaces of the opposite sides of the two locking member main bodies are both set as inclined surfaces, and in the inner-outer direction of the insertion cavity, the distance between the inclined surfaces of the opposite sides of the two locking member main bodies increases sequentially from the inside to the outside.
11. The novel pluggable fastener according to claim 10, characterized in that: The two side surfaces of the latch tongue body are also set as corresponding inclined surfaces.
12. The novel pluggable fastener according to claim 8, wherein: The locking member includes a main body, an operation portion and a connecting portion respectively provided at both ends of the main body. The end of the operation portion away from the main body extends out of the insertion cavity, and the two connecting portions are connected to the tension spring; the opposite sides of the two locking member main bodies are set as locking portions.
13. The novel pluggable fastener according to claim 12, wherein: When the female buckle and the male buckle are in a separated state or a connected state, the surfaces of the opposite sides of the two locking member main bodies are both set as inclined surfaces, and in the inner-outer direction of the insertion cavity, the distance between the inclined surfaces of the opposite sides of the two locking member main bodies increases sequentially from the inside to the outside.
14. The novel plug-in fastener according to claim 13, characterized in that: The two side surfaces of the latch tongue body are also set as corresponding inclined surfaces.
15. The novel pluggable fastener according to any one of claims 12 to 14, characterized in that: The groove on the locking member is provided on the connecting portion or at the intersection of the connecting portion and the main body.
16. The novel pluggable fastener according to any one of claims 1 to 4, 6 to 7, and 10 to 14, characterized in that: The two shoulders are respectively provided on both sides of the front end of the latch tongue body.
17. The novel pluggable fastener according to claim 16, characterized in that: A limiting member is arranged in the insertion cavity. Correspondingly, a limiting groove is arranged at the front end of the locking tongue. When the female buckle and the male buckle are in a connected state, the limiting member is inserted into the limiting groove.
18. The novel plug-in and unplugable buckle according to claim 17, wherein: The limiting groove is arranged in the middle of the front end of the locking tongue. Correspondingly, the limiting member is arranged at the middle position of the insertion cavity.
19. The novel pluggable buckle according to claim 8, characterized in that: The two shoulders are respectively arranged on both sides of the front end of the locking tongue body.
20. The novel pluggable buckle according to claim 9, wherein: The two shoulders are respectively arranged on both sides of the front end of the locking tongue body.
21. The novel pluggable buckle according to claim 19 or 20, characterized in that: A limiting member is arranged in the insertion cavity. Correspondingly, a limiting groove is arranged at the front end of the locking tongue. When the female buckle and the male buckle are in a connected state, the limiting member is inserted into the limiting groove.
22. The novel plug-in fastener according to claim 21, wherein: The limiting groove is arranged in the middle of the front end of the locking tongue. Correspondingly, the limiting member is arranged at the middle position of the insertion cavity.