Safety belt buckle self-locking device

Abstract

The utility model discloses a safety belt buckle self-locking device, which relates to the technical field of safety rope lock catches, and comprises a safety buckle consisting of a C-shaped ring, a rotating seat, a clamping hook and a lock catch rod and a two-section self-locking assembly with a self-locking sleeve, and a clamping lock assembly is arranged on the outer side of the lock catch rod and the top of the self-locking sleeve. The clamping and locking assembly is used for locking the opening groove in the state that the opening groove is aligned with the rotating part at the bottom of the lock catch rod and the clamping groove part at the top of the lock catch rod. By arranging the clamping and locking assembly, when the safety rope and the safety buckle need to be knotted and connected, the lock catch rod needs to be frequently opened, the semicircular clamping block can be rotationally clamped into the fan-shaped clamping groove, the self-locking sleeve is fixed in an unlocking state, at the moment, the lock catch rod is directly extruded and opened through the safety rope, and therefore operation is more convenient and faster; the two modes of use of the safety buckle are achieved, so that the whole safety buckle is more flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of safety rope lock buckles, in particular to a safety belt buckle self-locking device. Background Art

[0002] Aerial work safety belts are also called all-round safety belts or five-point safety belts. The national standard GB6095-2009 stipulates that the belt body must be made of high-strength polyester webbing or higher-strength fiber materials.

[0003] When the aerial work safety belt is in use, it will be used in conjunction with the safety rope through the safety rope buckle. The buckle is generally composed of a movable part and a fixed part, and is closed and opened by combining and separating the movable part and the fixed part. Most of the existing safety rope buckles have a self-locking structure. Among them, there is a two-stage automatic buckle, whose structure is that a rotatable and resettable sleeve is arranged on the outer side of the movable part. The sleeve limits the rotating part and the detachable part of the movable part and the fixed part, so as to realize the self-locking operation of the safety rope buckle. At the same time, notch grooves are provided at the upper and lower ends of the sleeve. When the notch groove is aligned with the rotating part and the detachable part of the movable part and the fixed part when the sleeve rotates, the movable part can be rotated at this time, so as to realize the opening of the buckle. The use of this safety rope buckle is safer.

[0004] When the two-stage automatic lock is in use, since a torsion spring structure is provided between the sleeve and the movable part, that is, after the sleeve is loosened, the sleeve will automatically reset to the initial state under the action of the torsion spring, that is, at this time, the notch groove on the sleeve is misaligned with the rotatable part of the movable part, thereby realizing self-locking of the movable part. Therefore, when the safety rope is connected and knotted with the two-stage automatic lock, it is necessary to keep the rotational thrust on the sleeve and keep the movable part pressed open. In order to simplify this action, a safety belt buckle self-locking device is provided. Summary of the invention

[0005] The purpose of the utility model is to provide a safety belt buckle self-locking device in order to solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety belt buckle self-locking device, comprising a safety buckle composed of a C-shaped ring, a rotating seat, a clamping hook, and a locking rod, and a two-stage self-locking component with a self-locking sleeve, wherein the rotating seat and the clamping hook are symmetrically fixed to the two ends of the C-shaped ring, the bottom end of the locking rod is rotatably connected to the rotating seat and the top of the locking rod is clamped to the outside of the clamping hook, the self-locking sleeve is rotatably sleeved on the outside of the locking rod, and is used to limit and lock the upper and lower ends of the locking rod with the rotating seat and the clamping hook, and the upper and lower ends of the self-locking sleeve are symmetrically provided with open grooves, and the self-locking sleeve is rotated to align the open groove with the bottom rotating part of the locking rod and the clamping groove part of the top of the locking rod, so as to release the lock of the locking rod;

[0007] A locking assembly is provided on the outer side of the locking rod and the top of the self-locking sleeve, and the locking assembly is used to lock the opening slot in a state aligned with the bottom rotating part of the locking rod and the clamping slot part of the top of the locking rod;

[0008] The locking assembly comprises a rotating column, a semicircular locking block, and a fan-shaped locking slot;

[0009] The rotating column is rotatably connected to the outer side of the locking rod near the top, and the semicircular block is fixed to one side of the rotating column;

[0010] The fan-shaped slot is opened at the top of the self-locking sleeve. When the self-locking sleeve drives the open slot to rotate to be aligned with the bottom rotating part of the locking rod and the top connecting slot of the locking rod, the fan-shaped slot is synchronously rotated to the bottom of the rotating column. By moving the semicircular block, the rotating column and the semicircular block are synchronously rotated, and the semicircular block is rotated and clamped into the fan-shaped slot to realize the position locking of the self-locking sleeve.

[0011] As a further solution of the utility model: when the self-locking sleeve is in the initial position, the position of the rotating column is aligned with the opening groove, and when the horizontal part of the semicircular block is facing downward, the horizontal surface of the semicircular block is higher than the top level of the self-locking sleeve.

[0012] As a further solution of the utility model: the inner cavity of the rotating column is inside the locking rod, a circular hole groove for the rotating column to rotate is opened inside the locking rod, and an anti-slip rubber ring is arranged between the outer side of the rotating column and the inner wall of the circular hole groove.

[0013] As a further solution of the utility model: an arc-shaped limit groove is provided at the bottom of the self-locking sleeve, which is offset from the opening groove in the circumferential direction; a limit column is fixed at a position on the outside of the locking rod near the top; the limit column is clamped on the inner side of the arc-shaped limit groove; the arc-shaped limit groove and the limit column cooperate to limit the rotational position of the self-locking sleeve.

[0014] As a further solution of the utility model: the outer side of the self-locking sleeve and the arc end surface of the semicircular clamping block are provided with anti-slip grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting up a locking assembly, when the safety rope and the safety buckle need to be knotted and connected, the locking rod needs to be opened frequently, and the semicircular clamping block can be rotated and clamped into the fan-shaped clamping slot to fix the self-locking sleeve in the unlocked state. At this time, the locking rod can be directly squeezed open by the safety rope. This operation is more convenient. By realizing the use of two modes of the safety buckle, its overall use is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model from a third viewing angle.

[0020] In the figure: 1. safety buckle; 101. C-shaped ring; 102. rotating seat; 103. snap hook; 104. locking rod; 2. two-stage self-locking assembly; 201. self-locking sleeve; 202. opening groove; 203. arc-shaped limit groove; 204. limit column; 3. locking assembly; 301. rotating column; 302. semicircular block; 303. fan-shaped slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 3 In the embodiment of the utility model, the safety belt buckle self-locking device includes a safety buckle 1 composed of a C-shaped ring 101, a rotating seat 102, a snap hook 103, and a locking rod 104, and a two-stage self-locking component 2 with a self-locking sleeve 201. The rotating seat 102 and the snap hook 103 are symmetrically fixed to the two ends of the C-shaped ring 101, the bottom end of the locking rod 104 is rotatably connected to the rotating seat 102, and the top of the locking rod 104 is snapped to the outside of the snap hook 103. On the side, the self-locking sleeve 201 is rotatably sleeved on the outer side of the lock rod 104, and is used to limit and lock the upper and lower ends of the lock rod 104 with the rotating seat 102 and the clamping hook 103. The upper and lower ends of the self-locking sleeve 201 are symmetrically provided with opening grooves 202. The self-locking sleeve 201 is rotated to align the opening grooves 202 with the bottom rotating part of the lock rod 104 and the top clamping groove part of the lock rod 104, so as to release the lock of the lock rod 104;

[0023] A locking assembly 3 is provided on the outer side of the locking rod 104 and the top of the self-locking sleeve 201, and the locking assembly 3 is used to lock the opening groove 202 in a state aligned with the bottom rotating part of the locking rod 104 and the top clamping groove part of the locking rod 104;

[0024] The locking assembly 3 includes a rotating column 301, a semicircular locking block 302, and a fan-shaped locking groove 303;

[0025] The rotating column 301 is rotatably connected to the outer side of the locking rod 104 near the top, and the semicircular block 302 is fixed to one side of the rotating column 301;

[0026] The fan-shaped card slot 303 is provided at the top of the self-locking sleeve 201. When the self-locking sleeve 201 drives the open slot 202 to rotate to be aligned with the bottom rotating part of the locking rod 104 and the card slot part at the top of the locking rod 104, the fan-shaped card slot 303 rotates synchronously to the bottom of the rotating column 301. By moving the semicircular card block 302, the rotating column 301 and the semicircular card block 302 rotate synchronously, and the semicircular card block 302 rotates and snaps into the fan-shaped card slot 303, so as to realize the position locking of the self-locking sleeve 201.

[0027] An arc-shaped limit groove 203 is provided at the bottom of the self-locking sleeve 201, which is offset from the opening groove 202 in the circumferential direction. A limit column 204 is fixed on the outer side of the locking rod 104 near the top. The limit column 204 is clamped on the inner side of the arc-shaped limit groove 203. The arc-shaped limit groove 203 cooperates with the limit column 204 to limit the rotational position of the self-locking sleeve 201.

[0028] In this embodiment: it is necessary to add that: an elastic reset component is provided between the rotation point of the lock rod 104 and the rotating seat 102 and between the inner side of the self-locking sleeve 201 and the outer side of the lock rod 104. When the lock rod 104 rotates vertically and the self-locking sleeve 201 rotates horizontally, the elastic reset component will be squeezed and deformed. The elastic force of the elastic reset component is used to provide reset power for the lock rod 104 and the self-locking sleeve 201, so as to realize the two-stage self-locking function. Since this functional structure is a prior art and the solution does not improve the structure of this part, it is not elaborated.

[0029] When in use, when it is necessary to open the lock rod 104, it is only necessary to rotate the self-locking sleeve 201 to make it rotate. When the self-locking sleeve 201 drives the opening groove 202 to align with the lock rod 104 and the bottom rotating part of the lock rod 104 and the clamping groove part of the top of the lock rod 104, an extrusion thrust can be given to the lock rod 104, so that the lock rod 104 rotates toward the inside of the C-shaped ring 101 with the rotating seat 102 as the center, and the top of the lock rod 104 is separated from the clamping hook 103, thereby realizing the opening of the lock rod 104. After the safety buckle 1 is connected to the external safety rope, the pressure on the lock rod 104 can be released first, and then the rotation thrust on the self-locking sleeve 201 can be released, so that the lock rod 104 and the self-locking sleeve 201 are reset to the initial state in turn, thereby realizing the automatic locking of the lock rod 104;

[0030] If the locking rod 104 needs to be opened multiple times to tie a knot between the external safety rope and the safety buckle 1, the self-locking sleeve 201 can be kept in the unlocked state of the locking rod 104. The operation steps are as follows:

[0031] First, rotate the self-locking sleeve 201 so that the opening slot 202 and the locking rod 104 and the bottom rotating part of the locking rod 104 and the top engaging slot of the locking rod 104 are aligned. At this time, the fan-shaped engaging slot 303 is located below the semicircular groove 302.

[0032] Then, the semicircular clamping block 302 is rotated to be inserted into the fan-shaped clamping groove 303 (it should be noted that a part of the semicircular clamping block 302 is located above the self-locking sleeve 201). Since the semicircular clamping block 302 rotates vertically and the self-locking sleeve 201 rotates horizontally, the semicircular clamping block 302 can fix the self-locking sleeve 201 at this position.

[0033] After that, the push on the self-locking sleeve 201 can be released, and the locking rod 104 can be directly squeezed by the safety rope. At this time, the locking rod 104 can be easily squeezed open, and after the safety rope is inserted into the inner side of the C-shaped ring 101, the locking rod 104 will be reset under the elastic force of the elastic reset component. In this way, the safety rope and the safety buckle 1 can be conveniently knotted.

[0034] After all operations are completed, it is only necessary to push the semicircular block 302 in the opposite direction to rotate it to the initial state, at which time the self-locking sleeve 201 is reset to lock the locking rod 104;

[0035] Through the cooperation of the above multiple parts, the two modes of use of the safety buckle 1 can be realized, and its overall use is more flexible and convenient.

[0036] Please refer to Figures 1 to 3 When the self-locking sleeve 201 is at the initial position, the position of the rotating column 301 is aligned with the opening slot 202, and when the horizontal portion of the semicircular block 302 is facing downward, the horizontal surface of the semicircular block 302 is higher than the top of the self-locking sleeve 201;

[0037] The inner cavity of the rotating column 301 is inside the locking rod 104 . A circular hole groove is provided inside the locking rod 104 for the rotating column 301 to rotate. An anti-skid rubber ring is provided between the outer side of the rotating column 301 and the inner wall of the circular hole groove.

[0038] In this embodiment: through this structure, when the semicircular block 302 is in the initial state, it will not affect the rotation operation of the self-locking sleeve 201. An anti-slip rubber ring is provided between the outer side of the rotating column 301 and the inner wall of the circular hole groove to increase the rotation resistance of the rotating column 301. In this way, the semicircular block 302 can maintain a stable state without external force.

[0039] Please refer to Figures 1 to 3 The outer side of the self-locking sleeve 201 and the arc end surface of the semicircular clamping block 302 are provided with anti-slip grooves.

[0040] In this embodiment, this structure can facilitate the operator to rotate the self-locking sleeve 201 and the semicircular block 302 .

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety belt buckle self-locking device, comprising a safety buckle (1) consisting of a C-shaped ring (101), a rotating seat (102), a snap hook (103), and a locking rod (104), and a two-stage self-locking component (2) having a self-locking sleeve (201), wherein the rotating seat (102) and the snap hook (103) are symmetrically fixed to two ends of the C-shaped ring (101), the bottom end of the locking rod (104) is rotatably connected to the rotating seat (102) and the top of the locking rod (104) is snapped to the outside of the snap hook (103), and the self-locking sleeve (201) is rotatably sleeved on the outside of the locking rod (104) for limiting and locking the upper and lower ends of the locking rod (104) with the rotating seat (102) and the snap hook (103), characterized in that: The self-locking sleeve (201) has symmetrical opening grooves (202) at the upper and lower ends. The self-locking sleeve (201) is rotated so that the opening groove (202) is aligned with the bottom rotation part of the locking rod (104) and the top clamping groove part of the locking rod (104), so as to release the locking of the locking rod (104); A locking assembly (3) is provided on the outer side of the locking rod (104) and on the top of the self-locking sleeve (201), and the locking assembly (3) is used to lock the opening groove (202) in a state aligned with the bottom rotating part of the locking rod (104) and the top locking groove part of the locking rod (104); The locking assembly (3) comprises a rotating column (301), a semicircular locking block (302), and a fan-shaped locking groove (303); The rotating column (301) is rotatably connected to the outer side of the locking rod (104) near the top, and the semicircular block (302) is fixed to one side of the rotating column (301); The fan-shaped card slot (303) is provided at the top of the self-locking sleeve (201). When the self-locking sleeve (201) drives the opening slot (202) to rotate to an aligned state with the bottom rotating portion of the locking rod (104) and the top card slot portion of the locking rod (104), the fan-shaped card slot (303) is synchronously rotated to the position directly below the rotating column (301). By moving the semicircular card block (302), the rotating column (301) and the semicircular card block (302) are synchronously rotated, and the semicircular card block (302) is rotated and snapped into the fan-shaped card slot (303), so as to realize the position locking of the self-locking sleeve (201).

2. The safety belt buckle self-locking device according to claim 1, characterized in that: When the self-locking sleeve (201) is in the initial position, the position of the rotating column (301) is aligned with the opening slot (202), and when the horizontal portion of the semicircular clamping block (302) faces downward, the horizontal surface of the semicircular clamping block (302) is higher than the top of the self-locking sleeve (201).

3. The safety belt buckle self-locking device according to claim 1, characterized in that: The inner cavity of the rotating column (301) is inside the locking rod (104), a circular hole groove for the rotating column (301) to rotate is provided inside the locking rod (104), and an anti-slip rubber ring is provided between the outer side of the rotating column (301) and the inner wall of the circular hole groove.

4. The safety belt buckle self-locking device according to claim 1, characterized in that: The bottom of the self-locking sleeve (201) is provided with an arc-shaped limiting groove (203) which is offset from the opening groove (202) in the circumferential direction; a limiting column (204) is fixed on the outer side of the locking rod (104) near the top; the limiting column (204) is clamped on the inner side of the arc-shaped limiting groove (203); the arc-shaped limiting groove (203) cooperates with the limiting column (204) to limit the rotational position of the self-locking sleeve (201).

5. The safety belt buckle self-locking device according to claim 1, characterized in that: Anti-slip grooves are provided on the outer side of the self-locking sleeve (201) and the arc end surface of the semicircular clamping block (302).

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