Fastener with lockable function

Abstract

The utility model relates to the technical field of fasteners, in particular to a lockable functional fastener which comprises a base, a sliding seat, a longitudinal elastic piece, a pressing piece and a locking mechanism, one end of the base is provided with a connecting portion, the connecting portion is provided with a sliding hole, the inner end of the sliding seat is inserted into the sliding hole in a sliding mode, and the inner end of the sliding seat is elastically connected with the inner wall of the sliding hole through a transverse elastic piece. The inner end of the pressing piece is hinged to the middle of the sliding seat, the top face of the middle of the pressing piece is provided with a limiting hook in a protruding mode, the limiting hook is used for abutting against the outer end face of the connecting part, and the bottom face of the middle of the pressing piece is elastically connected with the middle of the sliding seat through a longitudinal elastic piece. A pressing space is formed between the pressing part and the sliding seat, the locking mechanism is arranged at the outer end of the sliding seat, and the locking mechanism locks or unlocks the pressing part. The locking mechanism is additionally arranged to lock the pressing part, the phenomenon that the buckle is separated from the goods shelf due to the fact that the pressing part is pressed and the sliding base is pushed unintentionally is avoided, and use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of buckles, in particular to a buckle with a lockable function. Background Art

[0002] Among existing patents, the applicant filed Chinese patent application number 201922028675.8 on November 20, 2019, which discloses a clip for securing a bicycle child seat. The clip comprises a base, a locking hook, and a limiting mechanism. During use, a first elastic member applies a retaining force to the locking hook, causing the hook portion to clamp onto the bicycle rack. The pressing member is also restricted, preventing the pressing member and the locking hook from moving in the unlocking direction, thereby ensuring the stability of the base and child seat. To detach the base, the user overcomes the force of the second elastic member and presses the pressing member, releasing the limiting protrusion and allowing the hook portion of the locking hook to move away from the bicycle rack. Unlocking the clip requires both pressing the pressing member and pushing the locking hook, ensuring the locking hook is not accidentally unlocked due to pressure. This ensures safety, reliability, and ease of operation. A drawback of this patent is that the clip can become detached from the rack if the pressing member or the locking hook is accidentally pressed, resulting in a lack of safety and reliability, posing a potential safety hazard. Therefore, the defects are very obvious and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a lockable buckle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The locking mechanism is installed at the outer end of the slide, and the locking mechanism is used to lock or unlock the pressing part.

[0006] Furthermore, the locking mechanism includes a threaded part that threads through the outer end surface of the slide and a locking column arranged at the inner end of the threaded part, and the locking column can move into or out of the pressing space; when the locking column moves into the pressing space, the locking column contacts the bottom surface of the pressing part to lock the pressing part; when the locking column moves out of the pressing space, the locking column unlocks the pressing part.

[0007] Furthermore, the locking mechanism includes a rotating part rotatably connected to the outer end side surface of the slide and a locking plate installed on the inner end of the rotating part, and one end of the locking plate can be rotated into or out of the pressing space; when the locking plate is rotated into the pressing space, the locking plate contacts the bottom surface of the pressing part to lock the pressing part; when the locking plate is rotated out of the pressing space, the locking plate unlocks the pressing part.

[0008] Furthermore, a through hole connected to the sliding hole is provided on the top surface of the connecting part, a spring piece located in the through hole is provided on one side wall of the through hole, an upper interference hook is provided on the bottom surface of the spring piece, and a lower interference hook is provided on the top surface of the inner end of the sliding seat. The upper interference hook is used to limit the lower interference hook in the sliding hole.

[0009] Furthermore, a clamp is provided at the other end of the base.

[0010] Furthermore, a transverse fixing hole is recessed on the inner end surface of the sliding seat, and one end of the transverse elastic member is inserted into the transverse fixing hole.

[0011] Furthermore, a receiving groove is concavely provided on the top surface of the sliding seat, and the pressing member is located in the receiving groove.

[0012] Furthermore, a hinge cavity is recessed in the bottom wall of the accommodating groove, and a hinge block is provided at the inner end of the pressing member, and the hinge block is hinged in the hinge cavity.

[0013] Furthermore, a longitudinal fixing hole is recessed in the bottom wall of the accommodating groove and / or the middle bottom surface of the pressing member, and the end of the longitudinal elastic member is inserted into the longitudinal fixing hole.

[0014] Furthermore, an observation hole is provided on the bottom surface of the outer end of the sliding seat, and the observation hole is communicated with the pressing space.

[0015] The beneficial effects of the present invention are as follows: in actual application, in normal state, the inner end of the slide seat is slidably inserted into the slide hole, and the inner end of the slide seat is elastically connected to the inner wall of the slide hole via the transverse elastic member. The transverse elastic member is in an extended state, and there is a sliding space between the inner end surface of the slide seat and the inner wall of the slide hole. The longitudinal elastic member is in an extended state, and the limit hook of the pressing member contacts the outer end surface of the connecting portion. The locking mechanism locks the pressing portion, and at this time, the slide seat cannot be further pressed into the slide hole, nor can the pressing portion be pressed downward. When assembling and using, first install the base on an external structure such as a child seat, then unlock the pressing portion through the locking mechanism, and then apply downward pressure to the pressing portion, so that the pressing member rotates downward (rotates in the direction of compressing the pressing space), thereby causing the limit hook to move downward and disengage. The outer end surface of the connecting portion is separated from the outer end surface of the connecting portion. At the same time, an inward thrust is applied to the slide, causing the slide and the pressing member to move into the sliding hole and compress the transverse elastic member. At this time, the external structure equipped with the lockable fastener is placed on the shelf, the clamping member is engaged with the shelf, and then the downward pressure on the pressing portion and the thrust on the slide are released. The transverse elastic member will elastically recover, and the elastic force of the transverse elastic member pushes the slide outward, causing the slide to return to its starting position. The longitudinal elastic member will elastically recover, and under the elastic force of the longitudinal elastic member, the pressing member rotates upward and returns to its starting position, causing the limit hook to contact the outer end surface of the connecting portion. At this time, the lock hook just locks the shelf, and the pressing plate is locked by the locking mechanism, and the lockable fastener can be assembled on the shelf. When the pressing portion is locked, the pressing portion cannot be pressed, the limit hook contacts the outer end surface of the connecting portion, and the lockable fastener will not accidentally release the shelf. When it is necessary to remove the lockable buckle, after unlocking the pressing portion through the locking mechanism, downward pressure is applied to the pressing portion while simultaneously applying an inward thrust to the slide, causing the slide to move into the slide hole until the lock hook releases the shelf. At this point, the lockable buckle can be removed from the shelf. This utility model is easy to assemble on the shelf and, by adding a locking mechanism to lock the pressing portion, it prevents the buckle from being detached from the shelf due to inadvertent pressing of the pressing portion and pushing the slide, thereby improving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the exploded structure of an embodiment of the present invention from another perspective.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of another embodiment of the present utility model.

[0020] Figure 5 This is a schematic three-dimensional structural diagram of a locking mechanism according to another embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Base; 2. Sliding seat; 3. Longitudinal elastic member; 4. Pressing member; 5. Locking mechanism; 6. Connecting part; 7. Sliding hole; 8. Transverse elastic member; 9. Lock hook; 10. Limiting hook; 11. Pressing part; 12. Threaded member; 13. Locking column; 14. Rotating member; 15. Locking plate; 16. Through hole; 17. Spring piece; 18. Upper interference hook; 19. Lower interference hook; 20. Clamping member; 21. Transverse fixing hole; 22. Accommodating groove; 23. Hinge cavity; 24. Hinge block; 25. Longitudinal fixing hole; 26. Observation hole. DETAILED DESCRIPTION

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0024] like Figures 1 to 5 As shown, the utility model provides a lockable buckle, which includes a base 1, a slide 2, a longitudinal elastic member 3, a pressing member 4 and a locking mechanism 5. One end of the base 1 is provided with a connecting portion 6, and the outer end surface of the connecting portion 6 is inwardly concave with a sliding hole 7. The inner end of the slide 2 is slidably inserted into the sliding hole 7, and a transverse elastic member 8 is provided in the sliding hole 7. The inner end of the slide 2 is elastically connected to the inner wall of the sliding hole 7 via the transverse elastic member 8. The middle bottom surface of the slide 2 is convexly provided with a lock for locking an external shelf (such as a bicycle shelf, etc.) Hook 9, the inner end of the pressing member 4 is hinged to the middle part of the slide 2, and a limiting hook 10 is convexly provided on the top surface of the middle part of the pressing member 4. The limiting hook 10 is used to interfere with the outer end surface of the connecting portion 6. The middle bottom surface of the pressing member 4 is elastically connected to the middle part of the slide 2 via the longitudinal elastic member 3. The outer end of the pressing member 4 is bent and extended to have a pressing portion 11. There is a pressing space between the pressing portion 11 and the slide 2. The locking mechanism 5 is installed at the outer end of the slide 2. The locking mechanism 5 is used to lock or unlock the pressing portion 11; a clamping member 20 is provided at the other end of the base 1.

[0025] When the cam 11 is in the closed position, the cam 11 is in the closed position, and the cam 11 is in the closed position, so that the cam 11 is in the closed position and the cam 11 is in the closed position. At the same time, an inward thrust is applied to the slide 2, causing the slide 2 to move together with the pressing piece 4 toward the sliding hole 7 and compress the transverse elastic piece 8, and the limiting hook 10 moves into the sliding hole 7. At this time, the external structure equipped with the lockable buckle is placed on the shelf, and the card 20 is engaged with the shelf. Then, the downward pressure on the pressing part 11 and the thrust on the slide 2 are released, and the transverse elastic piece 8 will elastically recover. The elastic force of the transverse elastic piece 8 pushes the slide 2 outward, causing the slide 2 to return to its starting position, and the longitudinal elastic piece 3 will elastically recover. Under the elastic force of the longitudinal elastic piece 3, the pressing piece 4 rotates upward and returns to its starting position, causing the limiting hook 10 to conflict with the outer end surface of the connecting part 6. At this time, the lock hook 9 just locks the shelf, and then the pressing plate is locked by the locking mechanism 5, and the lockable buckle can be assembled on the shelf. When the pressing portion 11 is locked, the pressing portion 11 cannot be pressed, the limiting hook 10 conflicts with the outer end surface of the connecting portion 6, and the lockable buckle will not accidentally release the shelf. When it is necessary to disassemble the lockable buckle, after unlocking the pressing portion 11 through the locking mechanism 5, a downward pressure is applied to the pressing portion 11 while an inward thrust is applied to the slide 2, so that the slide 2 moves into the slide hole 7 until the locking hook 9 releases the shelf. At this time, the lockable buckle can be removed from the shelf. The utility model is easy to assemble on the shelf for use, and by adding the locking mechanism 5 to lock the pressing portion 11, the phenomenon of the buckle being detached from the shelf due to inadvertent pressing of the pressing portion 11 and pushing the slide 2 is avoided, thereby improving the safety and reliability of use.

[0026] Specifically, both the transverse elastic member 8 and the longitudinal elastic member 3 may be springs.

[0027] In this embodiment, the locking mechanism 5 includes a threaded member 12 that is threaded through the outer end surface of the slide 2 and a locking column 13 arranged at the inner end of the threaded member 12. The locking column 13 can move into or out of the pressing space; when the locking column 13 moves into the pressing space, the locking column 13 contacts the bottom surface of the pressing portion 11 to lock the pressing portion 11; when the locking column 13 moves out of the pressing space, the locking column 13 unlocks the pressing portion 11.

[0028] In actual use, in the initial state, the lock post 13 extends into the pressing space and contacts the bottom surface of the pressing portion 11. At this time, the locking mechanism 5 locks the pressing portion 11, and the pressing portion 11 cannot be pressed. When the pressing portion 11 needs to be unlocked, the screw 12 is screwed forward so that the screw 12 is screwed out of the slide 2, causing the lock post 13 to move out of the pressing space and separate from the pressing portion 11. At this time, the locking mechanism 5 unlocks the pressing portion 11 and applies downward pressure to the pressing portion 11, which can cause the pressing member 4 to rotate downward. When the pressing portion 11 needs to be locked again, the screw 12 is screwed backward until the lock post 13 moves into the pressing space and contacts the bottom surface of the pressing portion 11.

[0029] In another embodiment, the locking mechanism 5 includes a rotating member 14 rotatably connected to the outer end side surface of the slide 2 and a locking plate 15 installed at the inner end of the rotating member 14, and one end of the locking plate 15 can be rotated into or out of the pressing space; when the locking plate 15 is rotated into the pressing space, the locking plate 15 contacts the bottom surface of the pressing portion 11 to lock the pressing portion 11; when the locking plate 15 is rotated out of the pressing space, the locking plate 15 unlocks the pressing portion 11.

[0030] In actual application, in the initial state, the locking plate 15 extends into the pressing space and the locking plate 15 contacts the bottom surface of the pressing portion 11. At this time, the locking mechanism 5 locks the pressing portion 11, and the pressing portion 11 cannot be pressed; when the pressing portion 11 needs to be unlocked, the rotating member 14 is rotated forward, and the rotating rotating member 14 will drive the locking plate 15 to rotate, so that the locking plate 15 rotates out of the pressing space, and the locking plate 15 is separated from the pressing portion 11. At this time, the locking mechanism 5 unlocks the pressing portion 11 and applies downward pressure to the pressing portion 11, so that the pressing member 4 can rotate downward; when the pressing portion 11 needs to be locked again, the rotating member 14 is rotated in the reverse direction until the locking plate 15 rotates into the pressing space and contacts the bottom surface of the pressing portion 11.

[0031] In this embodiment, a through hole 16 communicating with the sliding hole 7 is provided on the top surface of the connecting portion 6, a spring piece 17 located in the through hole 16 is provided on one side wall of the through hole 16, an upper interference hook 18 is provided on the bottom surface of the spring piece 17, and a lower interference hook 19 is provided on the top surface of the inner end of the sliding seat 2. The upper interference hook 18 is used to limit the lower interference hook 19 in the sliding hole 7.

[0032] When the slide 2 and the connecting portion 6 are assembled, the inner end of the slide 2 is inserted into the sliding hole 7. As the inner end of the slide 2 gradually enters the sliding hole 7, the lower interference hook 19 of the slide 2 will exert an upward extrusion force on the upper interference hook 18. The upper interference hook 18 subjected to the upward extrusion force will squeeze the spring piece 17, causing the spring piece 17 to undergo a recoverable elastic deformation upward until the lower interference hook 19 of the slide 2 passes through the upper interference hook 18. The spring piece 17 elastically recovers, causing the upper interference hook 18 to reset and extend into the sliding hole 7. The upper interference hook 18 limits the lower interference hook 19 in the sliding hole 7, thereby limiting the slide 2 in the sliding hole 7, which can effectively prevent the slide 2 from disengaging from the connecting portion 6, allowing the slide 2 to reciprocate relative to the slider within a certain spatial stroke.

[0033] In this embodiment, the bottom surface of the upper interfering hook 18 is provided with an upper interfering slope that slopes downward from the outside to the inside; the top surface of the lower interfering hook 19 is provided with a lower interfering slope that slopes downward. The upper interfering slope is configured to interferingly cooperate with the lower interfering slope. When assembling the slide 2 and the connecting portion 6, the interfering cooperation between the upper interfering slope and the lower interfering slope makes the assembly of the slide 2 smoother, saving time and effort.

[0034] In this embodiment, the inner end surface of the slide 2 is recessed with a transverse fixing hole 21, into which one end of the transverse elastic member 8 is inserted. This structural design facilitates the positioning and assembly of the transverse elastic member 8, improves the operational stability and positioning accuracy of the transverse elastic member 8, and facilitates assembly and disassembly of the transverse elastic member 8.

[0035] In this embodiment, the top surface of the slide 2 is concavely provided with a receiving groove 22, and the pressing member 4 is located in the receiving groove 22. This structural design makes the pressing member 4 and the slide 2 compact, making it easy to apply thrust to the slide 2 while pressing the pressing member 4.

[0036] In this embodiment, the bottom wall of the accommodating groove 22 is recessed with a hinge cavity 23, and the inner end of the pressing member 4 is provided with a hinge block 24, which is hinged in the hinge cavity 23. When the pressing member 4 reciprocates, the hinge block 24 rotates in the hinge cavity 23.

[0037] In this embodiment, a longitudinal fixing hole 25 is recessed into the bottom wall of the accommodating groove 22 and / or the central bottom surface of the pressing member 4. The end of the longitudinal elastic member 3 is inserted into the longitudinal fixing hole 25. This structural design facilitates the positioning and assembly of the longitudinal elastic member 3, improves the operating stability and positioning accuracy of the longitudinal elastic member 3, and facilitates the assembly and disassembly of the longitudinal elastic member 3.

[0038] In this embodiment, an observation hole 26 is formed on the bottom surface of the outer end of the slide 2, and the observation hole 26 is connected to the pressing space. The operator can observe whether the pressing part 11 is locked through the observation hole 26.

[0039] Specifically, a guide groove is provided on the bottom surface of the connecting portion 6, and the lock hook 9 is slidably arranged in the guide groove. The guide groove guides the lock hook 9, thereby improving the sliding stability of the slide 2.

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A lockable buckle, characterized by: The invention comprises a base (1), a slide (2), a longitudinal elastic member (3), a pressing member (4) and a locking mechanism (5); a connecting portion (6) is provided at one end of the base (1); a sliding hole (7) is provided on the outer end surface of the connecting portion (6); the inner end of the slide (2) is slidably inserted into the sliding hole (7); a transverse elastic member (8) is provided in the sliding hole (7); the inner end of the slide (2) is elastically connected to the inner wall of the sliding hole (7) via the transverse elastic member (8); a locking hook (9) for locking a shelf outside is convexly provided on the bottom surface of the middle part of the slide (2); the pressing member (4) is provided with a locking hook (9) for locking a shelf outside; ) is hinged to the middle of the slide (2); a limit hook (10) is convexly provided on the top surface of the middle of the pressing member (4); the limit hook (10) is used to contact the outer end surface of the connecting portion (6); the middle bottom surface of the pressing member (4) is elastically connected to the middle of the slide (2) via the longitudinal elastic member (3); the outer end of the pressing member (4) is bent and extended to form a pressing portion (11); a pressing space is provided between the pressing portion (11) and the slide (2); a locking mechanism (5) is installed on the outer end of the slide (2); the locking mechanism (5) is used to lock or unlock the pressing portion (11).

2. The lockable buckle according to claim 1, characterized in that: The locking mechanism (5) comprises a threaded member (12) threadedly penetrating the outer end surface of the slide seat (2) and a locking column (13) arranged at the inner end of the threaded member (12), wherein the locking column (13) can be moved into or out of the pressing space; when the locking column (13) moves into the pressing space, the locking column (13) contacts the bottom surface of the pressing portion (11) to lock the pressing portion (11); when the locking column (13) moves out of the pressing space, the locking column (13) unlocks the pressing portion (11).

3. The lockable buckle according to claim 1, characterized in that: The locking mechanism (5) comprises a rotating member (14) rotatably connected to the outer end side surface of the slide seat (2) and a locking plate (15) mounted on the inner end of the rotating member (14), one end of the locking plate (15) being capable of rotating into or out of the pressing space; when the locking plate (15) is rotated into the pressing space, the locking plate (15) contacts the bottom surface of the pressing portion (11) to lock the pressing portion (11); when the locking plate (15) is rotated out of the pressing space, the locking plate (15) unlocks the pressing portion (11).

4. The lockable buckle according to claim 1, characterized in that: A through hole (16) communicating with the sliding hole (7) is provided on the top surface of the connecting portion (6); a spring piece (17) located in the through hole (16) is provided on one side wall of the through hole (16); an upper interference hook (18) is provided on the bottom surface of the spring piece (17); a lower interference hook (19) is provided on the top surface of the inner end of the sliding seat (2); and the upper interference hook (18) is used to limit the lower interference hook (19) in the sliding hole (7).

5. The lockable buckle according to claim 1, characterized in that: A clamping member (20) is provided at the other end of the base (1).

6. The lockable buckle according to claim 1, characterized in that: A transverse fixing hole (21) is concavely provided on the inner end surface of the slide seat (2), and one end of the transverse elastic member (8) is inserted into the transverse fixing hole (21).

7. The lockable buckle according to claim 1, characterized in that: The top surface of the slide seat (2) is concavely provided with an accommodating groove (22), and the pressing member (4) is located in the accommodating groove (22).

8. The lockable buckle according to claim 7, characterized in that: A hinge cavity (23) is recessed in the bottom wall of the accommodating groove (22), and a hinge block (24) is provided at the inner end of the pressing member (4), and the hinge block (24) is hinged in the hinge cavity (23).

9. The lockable buckle according to claim 7, characterized in that: A longitudinal fixing hole (25) is recessed in the bottom wall of the accommodating groove (22) or / and the middle bottom surface of the pressing piece (4), and the end of the longitudinal elastic piece (3) is inserted into the longitudinal fixing hole (25).

10. The lockable buckle according to any one of claims 1 to 9, characterized in that: An observation hole (26) is provided on the bottom surface of the outer end of the slide seat (2), and the observation hole (26) is communicated with the pressing space.

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