Lock catch structure and safety belt thereof

Abstract

The utility model relates to the technical field of fixing devices, and discloses a lock catch structure and a safety belt thereof, the lock catch structure comprises a triangular piece, one corner of the triangular piece is fixedly welded with a lock body piece, and the other corner of the triangular piece is rotatably connected with a bayonet piece; the limiting piece is rotationally arranged on one side of the lock body piece; the locking block is movably clamped with one end of the bayonet piece; a limiting clamping structure is arranged between the limiting safety sleeve and the bayonet piece. The torsion spring is arranged between the limiting piece and the triangular piece, and the torsion spring is arranged between the bayonet piece and the triangular piece, so that when the lock catch needs to be unlocked, the limiting piece is pressed by a hand, the limiting groove in the limiting piece coincides with the sliding groove in the triangular piece, the bayonet piece is pressed, and the shaft rod at one end of the bayonet piece slides along the sliding groove; and the limiting safety sleeve is arranged, it is ensured that the bayonet piece and the locking block cannot be accidentally separated in the using process, and the safety and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a locking structure and a safety belt thereof. Background Art

[0002] A personal safety insurance lanyard is required to be used by helicopter crew members working near an open cabin door or door. One end of the lanyard is provided with a locking structure, which can be quickly connected to a hanging point inside the aircraft through a locking piece.

[0003] The existing locking parts can be opened and closed quickly during use, which is convenient to use. However, the locking parts may be unlocked due to collision during use, causing the locking parts to separate from the hanging points, posing a safety hazard. Most of the existing technologies solve the above problems by sleeve connection with threaded sleeves, but the operation of threaded sleeves is time-consuming, not convenient enough, and has certain requirements on the shape of the locking parts.

[0004] Therefore, those skilled in the art provide a buckle structure and a safety belt thereof to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model mainly solves the technical problem of fast limiting of a locking buckle and improving safety, and provides a locking buckle structure and a safety belt thereof.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A lock buckle structure, comprising: a triangular piece, the triangular piece is triangular, one corner of the triangular piece is welded and fixed with a lock body piece, the other corner of the triangular piece is rotatably connected with a bayonet piece, the bayonet piece is right-angled, one end of the bayonet piece is hollowed out, the hollow end of the bayonet piece is movably engaged with the triangular piece, a torsion spring is arranged between the bayonet piece and the triangular piece, the remaining corner of the triangular piece is cut into an arc shape and is fixedly connected with a connecting ring; a limiting piece, the limiting piece is rotatably arranged on one side of the lock body piece, the side of the limiting piece close to the triangular piece is hollowed out, and the limiting piece is movably engaged with the triangular piece A torsion spring is arranged between the limit piece and the triangular piece; a locking block, which is fixedly connected to one end of the lock body away from the triangular piece, and the locking block is in a "T" shape, and the locking block is movably engaged with one end of the bayonet piece; a limit safety sleeve, which is movably sleeved on one end of the bayonet piece, and a limit engagement structure is arranged between the limit safety sleeve and the bayonet piece, and the limit engagement structure includes a limit engagement block that can be engaged between the lock block and the bayonet piece, and an equipment box is arranged on one side of the limit safety sleeve, and a pulling structure for pulling the equipment box is arranged in the cavity of the equipment box.

[0008] According to the lock buckle structure, a locking groove is provided at one end of the bayonet piece close to the locking block, and the locking block is movably engaged with the bayonet piece through the locking groove. The locking groove is T-shaped, and both ends of the T-shape of the locking block are arc-shaped.

[0009] According to the locking structure, the equipment box is fixedly connected to the outer wall of one side of the limiting safety sleeve, a pull plate is arranged in the cavity of the equipment box, the limiting snap-fitting block is fixedly connected to the pull plate, there are two limiting snap-fitting blocks, and the two limiting snap-fitting blocks are symmetrical.

[0010] According to the locking structure, the limit locking block movably penetrates the equipment box, the limit safety sleeve is provided with a through slot at a position corresponding to the limit locking block, and the limit locking block movably penetrates the corresponding through slot.

[0011] According to the locking structure, the pulling structure includes a handle that is movable through the equipment box, the handle is "U"-shaped, and the two ends of the handle in the equipment box cavity are fixedly connected to the pull plate.

[0012] According to the locking structure, a fixing column is also fixedly installed in the cavity of the equipment box. The number of the fixing columns is two. The two fixing columns movably penetrate the pull plate. A compression spring is sleeved on the outer wall surface of the fixing column. The compression spring is located at the end of the fixing column away from the limiting safety sleeve.

[0013] According to the lock structure, a second rotating axis is arranged between the limiting member and the lock body, a first rotating axis is arranged between the bayonet member and the triangular member, an axle rod is arranged at one end of the bayonet member away from the lock body, a sliding groove is opened through the triangular member, the axle rod is movably engaged in the sliding groove, a limiting groove is opened on the limiting member, and the axle rod is movably engaged in the limiting groove.

[0014] A safety belt comprises a safety belt and the above-mentioned buckle structure, wherein one end of the safety belt is fixedly connected to a connecting ring.

[0015] The utility model provides a locking structure and a safety belt thereof, which has the following beneficial effects:

[0016] (1) The present application comprises a main body formed by setting a triangular member, a connecting ring and a lock body member, a locking block being connected to one end of the lock body member, a bayonet member and the triangular member being rotatably connected via a first rotating shaft, and the bayonet member being able to movably engage with the locking block, and a torsion spring being set between the limit member and the triangular member, and the limit member being able to rotate around a second rotating shaft, and a torsion spring being set between the bayonet member and the triangular member, and the bayonet member being able to rotate around the first rotating shaft. When the lock buckle needs to be opened, the limit member is pressed by hand to make the limit groove on the limit member coincide with the sliding groove on the triangular member, and the bayonet member is pressed, and the shaft rod at one end of the bayonet member slides along the sliding groove, and the bayonet member is separated from the locking block to open the lock buckle, and a limit safety sleeve is set on the outer wall surface of the bayonet member, and the limit reinforcement can be performed in the closed state of the lock buckle to ensure that the bayonet member and the locking block will not be accidentally separated during use, thereby improving the safety and practicality of the device.

[0017] (2) By setting up a pulling structure, the pull plate can be driven to move synchronously by pulling the handle by hand. One side of the pull plate is fixedly connected to two limit locking blocks. The limit safety sleeve movably passes through the bayonet piece. The limit safety sleeve is moved to the end of the bayonet piece close to the lock block. The limit locking block can be movably engaged in the corresponding lock groove, thereby limiting the limit safety sleeve and ensuring that the limit safety sleeve will not move during use. By setting a fixed column and a compression spring, the pull plate is guided and pushed to ensure the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structure diagram of a lock structure of the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional structure diagram of a lock structure of the utility model Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the engagement relationship between the locking block and the bayonet member;

[0021] Figure 4 Schematic diagram of the locking block and the locking groove being covered by the limit safety sleeve;

[0022] Figure 5 It is a schematic diagram of the structure inside the equipment box cavity;

[0023] Figure 6 It is a schematic diagram of the connection relationship between the pull plate and the limit locking block;

[0024] Figure 7 It is a schematic diagram of the connection between the lock structure and the safety belt.

[0025] Legend:

[0026] 10. Triangle piece; 11. Connecting ring; 12. Lock body piece; 13. Bayonet piece; 14. Limit piece; 15. Axle rod; 16. Slide groove; 17. First rotating axis; 18. Second rotating axis; 19. Lock block; 20. Limit safety sleeve; 21. Lock groove; 22. Equipment box; 23. Handle; 24. Pull plate; 25. Fixed column; 26. Compression spring; 27. Limit snap-fit ​​block. DETAILED DESCRIPTION

[0027] like Figure 1-7As shown: a lock buckle structure, which includes: a triangular piece 10, the triangular piece 10 is triangular, one corner of the triangular piece 10 is welded and fixed with a lock body piece 12, the other corner of the triangular piece 10 is rotatably connected with a bayonet piece 13, the bayonet piece 13 is right-angled, one end of the bayonet piece 13 is hollow, the hollow end of the bayonet piece 13 is movably engaged with the triangular piece 10, a torsion spring is arranged between the bayonet piece 13 and the triangular piece 10, the remaining corner of the triangular piece 10 is cut into an arc shape and is fixedly connected with a connecting ring 11; a limiting piece 14, the limiting piece 14 is rotatably arranged on one side of the lock body piece 12, the side of the limiting piece 14 close to the triangular piece 10 is hollow, and the limiting piece 14 is movably engaged with the triangular piece 10 A torsion spring is arranged between the limit piece 14 and the triangular piece 10; a locking block 19, which is fixedly connected to one end of the lock body 12 away from the triangular piece 10, and the locking block 19 is in a "T" shape. The locking block 19 is movably engaged with one end of the bayonet piece 13; a limit safety sleeve 20, which is movably sleeved on one end of the bayonet piece 13, and a limit engagement structure is arranged between the limit safety sleeve 20 and the bayonet piece 13, and the limit engagement structure includes a limit engagement block 27 that can be engaged between the locking block 19 and the bayonet piece 13, and an equipment box 22 is arranged on one side of the limit safety sleeve 20, and a pulling structure for pulling the equipment box 22 is arranged in the cavity of the equipment box 22. A second rotating shaft 18 is arranged between the limiting member 14 and the lock body member 12, a first rotating shaft 17 is arranged between the bayonet member 13 and the triangular member 10, an axle rod 15 is arranged at one end of the bayonet member 13 away from the lock body member 12, a sliding groove 16 is penetrated through the triangular member 10, and the axle rod 15 is movably engaged in the sliding groove 16, and a limiting groove is arranged on the limiting member 14, and the axle rod 15 is movably engaged in the limiting groove.

[0028] A safety belt comprises a safety belt and the above-mentioned buckle structure, wherein one end of the safety belt is fixedly connected to a connecting ring 11.

[0029] Specifically, the present application is constituted by setting a triangular member 10, a connecting ring 11, and a lock body member 12 to form a main body, a locking block 19 is connected to one end of the lock body member 12, a bayonet member 13 is rotatably connected to the triangular member 10 through a first rotating shaft 17, and the bayonet member 13 can be movably engaged with the locking block 19, and a torsion spring is set between the limiting member 14 and the triangular member 10, the limiting member 14 is rotated around the second rotating shaft 18, and a torsion spring is set between the bayonet member 13 and the triangular member 10, and the bayonet member 13 can rotate around the first rotating shaft 17, when When the lock buckle needs to be opened, the limit piece 14 is pressed by hand to overlap the limit groove on the limit piece 14 with the slide groove 16 on the triangle piece 10, and the bayonet piece 13 is pressed. The shaft rod 15 at one end of the bayonet piece 13 slides along the slide groove 16, and the bayonet piece 13 is separated from the locking block 19 to open the lock buckle. A limit safety sleeve 20 is provided on the outer wall surface of the bayonet piece 13, which can be used for limit reinforcement when the lock buckle is closed to ensure that the bayonet piece 13 and the locking block 19 will not be accidentally separated during use, thereby improving the safety and practicality of the device.

[0030] The end of the bayonet 13 near the lock block 19 is provided with a lock slot 21, and the lock block 19 is movably engaged with the bayonet 13 through the lock slot 21. The lock slot 21 is T-shaped, and the two ends of the T-shaped lock block 19 are arc-shaped. The equipment box 22 is fixedly connected to the outer wall of one side of the limit safety sleeve 20. A pull plate 24 is arranged in the cavity of the equipment box 22. The limit clamping block 27 is fixedly connected to the pull plate 24. There are two limit clamping blocks 27, and the two limit clamping blocks 27 are symmetrical. The limit clamping block 27 movably penetrates the equipment box 22. The limit safety sleeve 20 is provided with a through slot at the position corresponding to the limit clamping block 27. The limit clamping block 27 movably penetrates the corresponding through slot. The pulling structure includes a handle 23 that movably penetrates the equipment box 22. The handle 23 is "U"-shaped. The handle 23 is fixedly connected to the pull plate 24 at both ends in the cavity of the equipment box 22. A fixing column 25 is also fixedly installed in the cavity of the equipment box 22. There are two fixing columns 25. The two fixing columns 25 movably penetrate the pull plate 24. A compression spring 26 is sleeved on the outer wall of the fixing column 25. The compression spring 26 is located at one end of the fixing column 25 away from the limiting safety sleeve 20.

[0031] Specifically, by setting a pulling structure, the handle 23 is pulled by hand to drive the pull plate 24 to move synchronously. One side of the pull plate 24 is fixedly connected to two limit locking blocks 27. The limit safety sleeve 20 movably passes through the bayonet piece 13. The limit safety sleeve 20 is moved to the end of the bayonet piece 13 close to the locking block 19. The limit locking block 27 can be movably engaged in the corresponding locking groove 21, thereby limiting the position of the limit safety sleeve 20 to ensure that the limit safety sleeve 20 will not move during use. The fixed column 25 and the compression spring 26 are provided to guide and push the pull plate 24 to ensure the normal operation of the device.

[0032] The working principle of a lock buckle structure and its safety belt of the present application is as follows: when the lock buckle needs to be opened, the limit member 14 is pressed by hand to overlap the limit groove on the limit member 14 with the slide groove 16 on the triangular member 10, and the bayonet member 13 is pressed. The shaft rod 15 at one end of the bayonet member 13 slides along the slide groove 16, and the bayonet member 13 is separated from the lock block 19 to open the lock buckle. A limit safety sleeve 20 is provided on the outer wall surface of the bayonet member 13, and the handle 23 is pulled by hand to drive the pull plate 24 to move synchronously. One side of the pull plate 24 is fixedly connected with two limit engaging blocks 27, and the limit safety sleeve 20 movably passes through the bayonet member 13, and the limit safety sleeve 20 is moved to the end of the bayonet member 13 close to the lock block 19, and the limit engaging block 27 can be movably engaged in the corresponding lock groove 21, so as to perform limit reinforcement in the closed state of the lock buckle, ensuring that the bayonet member 13 and the lock block 19 will not be accidentally separated during use.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A locking structure, characterized in that: include: A triangular piece (10) is triangular in shape, a lock body (12) is welded and fixed to one corner of the triangular piece (10), a bayonet piece (13) is rotatably connected to the other corner of the triangular piece (10), the bayonet piece (13) is right-angled, one end of the bayonet piece (13) is hollowed out, the hollowed-out end of the bayonet piece (13) is movably engaged with the triangular piece (10), a torsion spring is arranged between the bayonet piece (13) and the triangular piece (10), and the remaining corner of the triangular piece (10) is cut into an arc shape and fixedly connected to a connecting ring (11); A limiting member (14), wherein the limiting member (14) is rotatably arranged on one side of the lock body member (12), a side of the limiting member (14) close to the triangular member (10) is hollowed out, the limiting member (14) and the triangular member (10) are movably engaged, and a torsion spring is arranged between the limiting member (14) and the triangular member (10); A locking block (19), wherein the locking block (19) is fixedly connected to one end of the lock body (12) away from the triangular member (10), the locking block (19) is in a "T" shape, and the locking block (19) is movably engaged with one end of the bayonet member (13); A position-limiting safety sleeve (20) is movably sleeved on one end of the bayonet piece (13); a position-limiting clamping structure is arranged between the position-limiting safety sleeve (20) and the bayonet piece (13); the position-limiting clamping structure comprises a position-limiting clamping block (27) that can be clamped between the locking block (19) and the bayonet piece (13); an equipment box (22) is arranged on one side of the position-limiting safety sleeve (20); and a pulling structure for pulling the equipment box (22) is arranged in the cavity of the equipment box (22).

2. The lock structure according to claim 1, characterized in that: A locking groove (21) is formed at one end of the bayonet piece (13) close to the locking block (19), and the locking block (19) is movably engaged with the bayonet piece (13) through the locking groove (21). The locking groove (21) is T-shaped, and both ends of the T-shape of the locking block (19) are arc-shaped.

3. The lock structure according to claim 1, characterized in that: The equipment box (22) is fixedly connected to an outer wall surface of one side of the position-limiting safety sleeve (20); a pull plate (24) is arranged in the cavity of the equipment box (22); a position-limiting snap-fitting block (27) is fixedly connected to the pull plate (24); there are two position-limiting snap-fitting blocks (27), and the two position-limiting snap-fitting blocks (27) are symmetrical.

4. The lock structure according to claim 3, characterized in that: The position-limiting clamping block (27) movably penetrates the equipment box (22); the position-limiting safety sleeve (20) is provided with a passing slot at a position corresponding to the position-limiting clamping block (27); and the position-limiting clamping block (27) movably penetrates the corresponding passing slot.

5. The lock structure according to claim 1, characterized in that: The pulling structure comprises a handle (23) that movably penetrates the equipment box (22); the handle (23) is in a "U" shape; the two ends of the handle (23) in the cavity of the equipment box (22) are fixedly connected to a pull plate (24).

6. The lock structure according to claim 5, characterized in that: A fixing column (25) is also fixedly installed in the cavity of the equipment box (22). There are two fixing columns (25). The two fixing columns (25) movably penetrate the pull plate (24). A compression spring (26) is sleeved on the outer wall surface of the fixing column (25). The compression spring (26) is located at one end of the fixing column (25) away from the limit safety sleeve (20).

7. The lock structure according to claim 1, characterized in that: A second rotating shaft (18) is arranged between the limiting member (14) and the lock body member (12), a first rotating shaft (17) is arranged between the bayonet member (13) and the triangular member (10), a shaft rod (15) is arranged at one end of the bayonet member (13) away from the lock body member (12), a sliding groove (16) is provided through the triangular member (10), the shaft rod (15) is movably engaged in the sliding groove (16), a limiting groove is provided on the limiting member (14), and the shaft rod (15) is movably engaged in the limiting groove.

8. A safety belt, characterized in that: It comprises a safety belt and a buckle structure as claimed in any one of claims 1 to 7, wherein one end of the safety belt is fixedly connected to a connecting ring (11).

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