Hardware fitting with self-locking function

Abstract

The utility model discloses a hardware fitting with a self-locking function, which belongs to the technical field of self-locking function and comprises a lower box body, an upper box body is arranged above the lower box body, the top and the bottom of the upper box body and the top and the bottom of the lower box body are respectively provided with a pushing groove, self-locking devices are arranged in the upper box body and the lower box body, and the pushing grooves are communicated with the pushing grooves. The self-locking device comprises an upper lock catch and a lower lock catch, and limiting grooves are formed in the upper lock catch and the lower lock catch respectively. According to the hardware fitting with the self-locking function, through the arrangement of an upper deflector rod, a hook, a tension spring and a drag hook, when an upper lock catch or a lower lock catch needs to be opened, only upward acting force needs to be applied to the upper deflector rod to drive the upper lock catch, the upper lock catch and the lower lock catch extrude each other to reach the designated position, and then the upper box body and the lower box body can be separated; and the pull hook in the box body pulls the tension spring, so that the spring pulls the hook to move, and the hook drives the deflector rod to move to the original position, thereby greatly providing convenience for users.

Description

Technical Field

[0001] The utility model belongs to the technical field of self-locking function, in particular to a hardware accessory with a self-locking function. Background Art

[0002] The strap connector is a hardware accessory with a self-locking function. The self-locking structure is a mechanical design that allows a component to automatically lock in position under certain conditions without requiring additional energy or force to maintain this state. This structure usually uses friction, shape fit or other physical principles to achieve self-locking. Currently, there are existing self-locking methods such as thread self-locking, gear self-locking, and cam self-locking. However, most of the self-locking methods require specific external objects to assist in unlocking, and some self-locking methods are not suitable for small devices, causing inconvenience to users when using them. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a hardware accessory with a self-locking function, which solves the problem that no specific external object is needed to assist in unlocking and that some self-locking methods are not suitable for small devices.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hardware accessory with a self-locking function, comprising a lower box body, an upper box body is arranged above the lower box body, the top and bottom of the upper box body and the lower box body are respectively provided with a push groove, the upper box body and the lower box body are provided with a self-locking device, the self-locking device comprises an upper lock buckle and a lower lock buckle, the upper lock buckle and the lower lock buckle are respectively arranged in the upper box body and the lower box body, the upper lock buckle and the lower lock buckle are respectively provided with a limiting groove, the limiting block is sleeved in the limiting groove, and the limiting block is fixedly connected to the inner wall of the upper box body and the lower box body;

[0005] The outer top of the upper lock buckle is fixedly connected with an upper lever, and the upper lever passes through a push groove at the top of the upper box body. The outer bottom of the lower lock buckle is fixedly connected with a lower lever, and the lower lever passes through a push groove at the bottom of the lower box body. The bottom of the upper lever and the top of the lower lever are respectively provided with hooks, and the hooks are respectively provided with tension springs, and the other end of the tension spring is sleeved with a draw hook, and the draw hooks are respectively fixedly connected to the bottom end of the upper box body and the top end of the lower box body.

[0006] As a further solution of the utility model: a tape reel is provided inside the lower box body, and the tape reel comprises a turntable, and the turntable is fixedly connected to the inner wall of one end of the lower box body.

[0007] As a further solution of the utility model: a connecting rod is fixedly connected to the outer side of the rotating disk, and a spiral spring sheet is sleeved on the outer side of the connecting rod.

[0008] As a further solution of the utility model: a protective cover is provided on the outer side of the scroll spring sheet, and the protective cover is fixedly connected to the rotating disk.

[0009] As a further solution of the utility model: a slide groove is provided on the outer side of the protective cover, and a limiting hole is provided on one end of the outer side of the lower box body.

[0010] As a further solution of the utility model: one end of the outer side of the upper box body and one end of the outer side of the lower box body are respectively fixedly connected with a sun buckle, and the sun buckle on the outer side of the lower box body is arranged outside the limiting hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The hardware accessories with self-locking function are provided with an upper lever, a lower lever, a limiting groove, a limiting block, a hook, a tension spring, a draw hook, a lower locking buckle and an upper locking buckle. When the upper locking buckle or the lower locking buckle needs to be opened, it is only necessary to apply an upward force to the upper lever to drive the upper locking buckle or to apply a downward force to the lower lever to drive the lower locking buckle, so that the limiting grooves in the upper locking buckle and the lower locking buckle move along the limiting block, so that the upper locking buckle and the lower locking buckle are squeezed against each other to reach a specified position, and then the upper box body can be separated from the lower box body, and then the tension spring is pulled by the draw hook in the box body to make the spring pull the hook to move, and the hook drives the lever to move to the original position. When self-locking is needed, it is only necessary to align the upper box body with the lower box body and squeeze them against each other to complete the self-locking, thereby greatly providing convenience for users.

[0013] 2. The hardware accessory with self-locking function is provided with a sun buckle, a turntable, a scroll spring sheet, a protective cover and a slide groove. When the shoulder strap needs to be adjusted, it is only necessary to apply force outward to the shoulder strap extending from the slide groove in the lower box body to drive the scroll spring sheet outside the turntable to rotate, and then the shoulder strap can be pulled out along the slide groove outside the protective cover, and then the shoulder strap on the sun buckle can be adjusted to complete the shoulder strap adjustment, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the tape reel of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the self-locking device of the utility model;

[0017] In the figure: 1. lower box body; 2. upper box body; 3. day buckle; 4. belt winder; 401. turntable; 402. connecting rod; 403. scroll spring leaf; 404. protective cover; 405. slide groove; 5. self-locking device; 501. upper lever; 502. lower lever; 503. limit groove; 504. limit block; 505. hook; 506. tension spring; 507. pull hook; 508. lower locking buckle; 509. upper locking buckle; 6. push groove; 7. limit hole. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, the utility model provides a technical solution: a hardware accessory with a self-locking function, comprising a lower box body 1, a belt reel 4 is provided inside the lower box body 1, the belt reel 4 comprises a turntable 401, the turntable 401 is fixedly connected to the inner wall of one end of the lower box body 1, and because the belt reel 4 is provided, the excess part of the shoulder strap can be stored by the belt reel 4, thereby providing convenience for the user;

[0020] An upper box body 2 is provided above the lower box body 1, and a sun buckle 3 is fixedly connected to an outer end of the upper box body 2 and an outer end of the lower box body 1, respectively. The sun buckle 3 on the outer side of the lower box body 1 is arranged outside the limiting hole 7. Since the sun buckle 3 is provided, the shoulder strap can be connected and fixed by the sun buckle 3, so that the user can use it more conveniently;

[0021] The top and bottom of the upper box body 2 and the lower box body 1 are respectively provided with a push groove 6, and the upper box body 2 and the lower box body 1 are provided with a self-locking device 5, which includes an upper lock buckle 509 and a lower lock buckle 508, which are respectively arranged in the upper box body 2 and the lower box body 1, and the upper lock buckle 509 and the lower lock buckle 508 are respectively provided with a limit groove 503, and a limit block 504 is sleeved in the limit groove 503, and the limit block 504 is fixedly connected to the inner wall of the upper box body 2 and the lower box body 1, and the outer top of the upper lock buckle 509 is fixedly connected with an upper lever 5 01, the upper lever 501 passes through the push slot 6 at the top of the upper box body 2, the outer bottom of the lower lock buckle 508 is fixedly connected with the lower lever 502, the lower lever 502 passes through the push slot 6 at the bottom of the lower box body 1, the bottom of the upper lever 501 and the top of the lower lever 502 are respectively provided with hooks 505, and the hooks 505 are respectively provided with tension springs 506. By setting the tension springs 506, the upper lever 501 or the lower lever 502 can be made to rebound to the original position due to the action of the tension springs 506 after being moved.

[0022] The other end of the tension spring 506 is sleeved with a hook 507 , and the hook 507 is fixedly connected to the bottom end inside the upper box body 2 and the top end inside the lower box body 1 respectively.

[0023] The outer side of the rotating disk 401 is fixedly connected with a connecting rod 402, and the outer side of the connecting rod 402 is sleeved with a spiral spring sheet 403. By providing the spiral spring sheet 403, the shoulder strap can be stored along the spiral spring sheet 403. When it is needed, it only needs to be pulled outward, and when it needs to be retracted, it can be retracted by just letting go without any obstruction.

[0024] A protective cover 404 is provided on the outer side of the scroll spring piece 403, and the protective cover 404 is fixedly connected to the rotating disk 401. By providing the protective cover 404, the protective cover 404 plays a role of limiting and protecting the scroll spring piece 403, so that the scroll spring piece 403 can play a better role;

[0025] A slide groove 405 is provided on the outer side of the protective cover 404, and a limiting hole 7 is provided on one end of the outer side of the lower box body 1. By setting the slide groove 405 and the limiting hole 7, the shoulder strap can be connected with the sun buckle 3 when passing through the slide groove 405 and the limiting hole 7, thereby providing convenience for the user.

[0026] The working principle of the utility model is as follows: when it is necessary to open the upper lock buckle 509 or the lower lock buckle 508, it is only necessary to apply an upward force to the upper lever 501 to drive the upper lock buckle 509 or apply a downward force to the lower lever 502 to drive the lower lock buckle 508, so that the limiting grooves 503 in the upper lock buckle 509 and the lower lock buckle 508 move along the limiting block 504, so that the upper lock buckle 509 and the lower lock buckle 508 are squeezed against each other to reach a specified position, and then the upper box body 2 can be separated from the lower box body 1, and then the tension spring 506 can be pulled by the draw hook 507 in the upper box body 2 or the lower box body 1. , so that the spring pulls the hook 505 to move, and the hook 505 drives the upper lever 501 and the lower lever 502 to move to their original positions. When self-locking is required, the upper box body 2 and the lower box body 1 only need to be aligned and squeezed against each other to complete the self-locking. When the shoulder strap needs to be adjusted, the shoulder strap extending from the slide groove 405 in the lower box body 1 needs to be applied outward to drive the spiral spring sheet 403 outside the turntable 401 to rotate, and the shoulder strap is pulled out along the slide groove 405 outside the protective cover 404, and then the shoulder strap on the sun buckle 3 can be adjusted to complete the shoulder strap adjustment.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A hardware accessory with a self-locking function, comprising a lower box body (1), characterized in that: An upper box body (2) is arranged above the lower box body (1), and a push groove (6) is respectively provided at the top and bottom of the upper box body (2) and the lower box body (1), and a self-locking device (5) is arranged inside the upper box body (2) and the lower box body (1), and the self-locking device (5) comprises an upper locking buckle (509) and a lower locking buckle (508), and the upper locking buckle (509) and the lower locking buckle (508) are respectively arranged in the upper box body (2) and the lower box body (1), and a limiting groove (503) is respectively provided in the upper locking buckle (509) and the lower locking buckle (508), and a limiting block (504) is sleeved in the limiting groove (503), and the limiting block (504) is fixedly connected to the inner wall of the upper box body (2) and the lower box body (1); The top of the outer side of the upper lock buckle (509) is fixedly connected to an upper lever (501), and the upper lever (501) passes through the push groove (6) at the top of the upper box body (2). The bottom of the outer side of the lower lock buckle (508) is fixedly connected to a lower lever (502), and the lower lever (502) passes through the push groove (6) at the bottom of the lower box body (1). The bottom of the upper lever (501) and the top of the lower lever (502) are respectively provided with hooks (505), and tension springs (506) are respectively provided on the hooks (505). The other end of the tension spring (506) is sleeved with a draw hook (507), and the draw hook (507) is respectively fixedly connected to the bottom end inside the upper box body (2) and the top end inside the lower box body (1).

2. The hardware accessory with self-locking function according to claim 1, characterized in that: A tape reel (4) is provided inside the lower box body (1), and the tape reel (4) comprises a rotating disk (401), and the rotating disk (401) is fixedly connected to the inner wall of one end of the lower box body (1).

3. The hardware accessory with self-locking function according to claim 2, characterized in that: The outer side of the rotating disk (401) is fixedly connected to a connecting rod (402), and the outer side of the connecting rod (402) is sleeved with a spiral spring sheet (403).

4. The hardware accessory with self-locking function according to claim 3, characterized in that: A protective cover (404) is provided on the outer side of the spiral spring sheet (403), and the protective cover (404) is fixedly connected to the rotating disk (401).

5. The hardware accessory with self-locking function according to claim 4, characterized in that: A sliding groove (405) is provided on the outer side of the protective cover (404), and a limiting hole (7) is provided on one end of the outer side of the lower box body (1).

6. The hardware accessory with self-locking function according to claim 5, characterized in that: One end of the exterior of the upper box body (2) and one end of the exterior of the lower box body (1) are respectively fixedly connected with a day buckle (3), and the day buckle (3) on the outside of the lower box body (1) is arranged outside the limiting hole (7).

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