Self-locking type fastener

Abstract

One side of the top of a fastener seat is fixedly connected with a hook-shaped fixed hook body, one side, opposite to the fixed hook body, in the fastener seat is connected with a movable hook body in a sliding mode, a first spring is installed at the bottom of the movable hook body, and a sliding groove is formed in the fastener seat and located on one side of the movable hook body. A connecting rod fixedly connected with the movable hook body is slidably connected into the sliding groove, the end, away from the movable hook body, of the connecting rod is fixedly connected with a driving plate with the interior of a hollow structure, and a positioning assembly used for fixing the driving plate is arranged in the driving plate. By means of the structure, when the movable hook body and the fixed hook body are connected in a matched mode, the positioning assembly is arranged for limiting the movable hook body, and the situation that the movable hook body is accidentally unlocked due to the fact that the driving plate moves under external force can be reduced; according to unlocking work of the movable hook body, the hook body can move downwards to be separated from the fixed hook body to complete unlocking work only by pressing and operating the driving pressing plate downwards, operation is simpler, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hardware fittings, particularly relates to a self-locking hook and buckle. BACKGROUND

[0002] As an important hardware fitting, the self-locking hook and buckle is widely used in various connection and fixing occasions, such as mountaineering, rock climbing, industrial equipment, transportation and outdoor activities, etc. due to its safety, convenience and various application scenarios.

[0003] In the prior art, through retrieval, it is found that a hook and buckle with self-locking function is disclosed in Chinese patent with application number 201720548649.6. The patent mainly comprises an upper buckle seat, a disc groove is formed in the upper part of the body of the upper buckle seat, a rotating disc is arranged in the inner cavity of the disc groove, a vertical rod is connected to the top center of the rotating disc, the vertical rod penetrates through the top of the upper buckle seat, a hanging ring is connected to the top of the vertical rod, a right connecting rod groove is formed in the right side of the body of the upper buckle seat, a right connecting rod is longitudinally inserted into the inner cavity of the right connecting rod groove, a stop plate is arranged at the bottom of the right connecting rod groove, a hook and buckle is connected to the bottom of the right connecting rod, a left connecting rod groove is formed in the left end of the bottom of the upper buckle seat and is adapted to the left connecting rod. Although the above-mentioned hook and buckle has a self-locking function, it is convenient to lock the object to be locked, the self-locking insert head and the arc-shaped top cover are matched with each other to avoid the left connecting rod from falling off during use, and it is relatively simple to unhook after use. However, after the left connecting rod is locked by the self-locking rod, the push-pull plate and the reset spring, the user needs to pull the push-pull plate to unlock, which may be difficult or inconvenient to operate with one hand due to the movement of the buckle seat. In addition, a single self-locking rod is arranged to realize the locking operation, which may not effectively resist the external force and cause the self-locking rod to be accidentally unlocked in some outdoor activities with large movement and complex environment, such as mountaineering, rock climbing and transportation, etc. Therefore, the technical personnel in the field provide a self-locking hook and buckle to solve the problems in the above background. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a self-locking hook and buckle, when the movable hook body is connected with the fixed hook body in cooperation, the positioning assembly is arranged to limit the movable hook body, which can reduce the situation that the movable hook body is accidentally unlocked due to the movement of the driving plate under external force; the unlocking work of the movable hook body only needs to press and operate the driving press plate downward to make the hook body move downward and separate from the fixed hook body to complete the unlocking work, which is more simple to operate and convenient to use.

[0005] In order to achieve the above object, a self-locking hook is provided, comprising a hook seat, one side of the top of the hook seat is fixedly connected with a hook-shaped fixed hook body, the inside of the hook seat and the opposite side of the fixed hook body are slidably connected with a movable hook body, the bottom of the movable hook body is provided with a first spring, the inside of the hook seat and one side of the movable hook body are provided with a sliding groove, the inside of the sliding groove is slidably connected with a connecting rod fixedly connected with the movable hook body, the end of the connecting rod away from the movable hook body is fixedly connected with a hollow driving plate, the inside of the driving plate is provided with a positioning assembly for fixing the driving plate;

[0006] The positioning assembly comprises a driving button slidably connected in the inside of the driving plate, a second spring fixedly connected between the driving button and the inner wall of the driving plate, and a positioning connecting rod slidably connected in the inside of the driving plate and located at one side of the connecting rod, the positioning connecting rod is provided in an L-shaped structure, one side of the hook seat close to the top of the sliding groove is fixedly connected with an L-shaped limiting rod, the L-shaped end of the positioning connecting rod extends between the limiting rod and the hook seat, the end of the positioning connecting rod opposite to the L-shaped structure is fixedly connected with the driving button, and one side of the positioning connecting rod close to the hook seat is provided with a clamping groove, and the L-shaped end of the positioning connecting rod is inserted into the clamping groove in a matched mode.

[0007] According to the self-locking hook, the bottom of the hook seat is rotatably connected with a connecting shaft, and the bottom of the connecting shaft is fixedly connected with a connecting ring.

[0008] According to the self-locking hook, the hook seat, the fixed hook body, the movable hook body and the connecting ring are all made of aluminum alloy, and the connecting shaft is made of stainless steel.

[0009] According to the self-locking hook, the inside of the hook seat is provided with a connecting hole, and the outer surface of the driving button is provided with anti-skid textures.

[0010] According to the self-locking hook, the outside of the positioning connecting rod and the side of the driving plate away from the driving button are fixedly connected with a limiting plate.

[0011] According to the self-locking hook, the top of the side, where the positioning connecting rod is connected with the clamping groove, is provided in an inclined surface structure.

[0012] The utility model has the advantages of:

[0013] Compared with the prior art, when the movable hook body is connected with the fixed hook body in a matched mode, the positioning assembly is arranged to limit the movable hook body, so that the situation that the movable hook body is accidentally unlocked due to the movement of the driving plate caused by external force can be reduced; the unlocking work of the movable hook body can be completed by only pressing and operating the driving button downward to make the hook body move downward and separate from the fixed hook body, so that the operation is more simple and convenient to use.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a self-locking hook buckle of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a hook seat of a self-locking hook of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a movable plate of a self-locking hook buckle of the utility model;

[0019] Figure 4 This is a schematic structural diagram of a positioning connecting rod, a limiting rod and a limiting plate of a self-locking hook buckle of the utility model;

[0020] Figure 5 This utility model is a self-locking hook buckle Figure 1 Middle A is a schematic diagram of the enlarged structure;

[0021] Figure 6 This utility model is a self-locking hook buckle Figure 2 Enlarged structural diagram at point B in the middle.

[0022] Legend:

[0023] 1. Hook seat; 2. Fixed hook body; 3. Movable hook body; 4. Connecting ring; 5. Connecting hole; 6. Slide groove; 7. Connecting rod; 8. Driving plate; 9. Driving plate; 10. Positioning connecting rod; 11. Limiting rod; 12. Anti-slip texture; 13. First spring; 14. Second spring; 15. Limiting plate; 16. Slot. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] Reference Figure 1 - Figure 6The utility model discloses a self -locking type hook and buckle, its including hook and buckle seat 1, the one side fixedly connected with the fixed hook body 2 of hook shape in hook and buckle seat 1 top, the inside sliding connection with the movable hook body 3 of fixed hook body 2 opposite side in hook and buckle seat 1, the first spring 13 is installed in movable hook body 3 bottom, is used for providing movable hook body 3's reset, keep with fixed hook body 2's close closed condition.

[0026] The positioning assembly includes a driving press plate 9 slidingly connected inside the driving plate 8, a second spring 14 fixedly connected between the driving press plate 9 and the inner wall of the driving plate 8, and a positioning connecting rod 10 slidingly connected inside the driving plate 8 and located on one side of the connecting rod 7. The positioning connecting rod 10 is in an L-shaped structure. A limiting rod 11 in an L-shaped structure is fixedly connected to one side of the hook and buckle seat 1 near the top of the sliding groove 6. The L-shaped end of the positioning connecting rod 10 extends between the limiting rod 11 and the hook and buckle seat 1. One end of the positioning connecting rod 10 opposite the L-shaped structure is fixedly connected to the driving press plate 9. A clamping groove 16 is formed on the side of the positioning connecting rod 10 close to the hook and buckle seat 1. The L-shaped end of the positioning connecting rod 10 is inserted into the clamping groove 16. A limiting plate 15 is fixedly connected to the outside of the positioning connecting rod 10 and located on the side of the driving plate 8 away from the driving press plate 9, for limiting the movable positioning connecting rod 10.

[0027] When the movable hook body 3 is connected with the fixed hook body 2, the first spring 13 provides a pushing force to keep the movable hook body 3 and the fixed hook body 2 in a tightly locked state. The second spring 14 also provides a pushing force to move the driving press plate 9 and the positioning connecting rod 10 on it away from the hook and buckle seat 1, so that the positioning connecting rod 10 can be stably inserted into the clamping groove 16 of the limiting rod 11, achieving the limiting operation of the driving plate 8 to reduce the possibility of the movable hook body 3 being accidentally unlocked due to the movement of the driving plate 8 under external force. When it is necessary to unlock the movable hook body 3, the finger part presses the driving press plate 9 to separate the positioning connecting rod 10 on it from the clamping groove 16, and then the driving plate 8 is operated downward to make the connecting rod 7 slide downward, thereby moving the movable hook body 3 downward to separate it from the fixed hook body 2 and complete the unlocking. When it is necessary to lock the movable hook body 3, the driving plate 8 is moved upward to the position of the top of the sliding groove 6, the driving press plate 9 is pressed to move the positioning connecting rod 10 on it close to the hook and buckle seat 1, and the positioning connecting rod 10 is smoothly moved to one side of the clamping groove 16. The driving press plate 9 is released, and the second spring 14 resets the driving plate 8, achieving the limiting operation of the driving plate 8 and ensuring the stability of the locked state of the movable hook body 3 and the fixed hook body 2. The operation is simple and convenient to use.

[0028] The bottom of the hook base 1 is rotationally connected with a connecting shaft, and the bottom of the connecting shaft is fixedly connected with a connecting ring 4, so as to facilitate the connection of the entire hook with other connecting members. The hook base 1, the fixed hook body 2, the movable hook body 3 and the connecting ring 4 are all made of aluminum alloy, which not only ensures sufficient strength, but also reduces weight. The connecting shaft is made of stainless steel, so as to improve its strength and wear resistance, and better connect the connecting ring 4 and the hook base 1.

[0029] The hook base 1 is internally provided with a connecting hole 5, which provides an additional connecting position, so as to facilitate the fixation of the entire hook at a specific position by means of bolts or other connecting members when needed. The outer surface of the driving press plate 9 is provided with anti-skid textures 12, which increase the friction between the fingers and the driving press plate 9, so as to facilitate the user to press the driving press plate 9 to perform the unlocking operation. The top of the side, which is connected with the clamping groove 16, of the positioning connecting rod 10 is provided with an inclined surface structure, so as to facilitate the auxiliary insertion of the positioning connecting rod 10 into the clamping groove 16.

[0030] Working principle: when the movable hook body 3 is connected with the fixed hook body 2 in cooperation, the first spring 13 provides a pushing force to keep the movable hook body 3 and the fixed hook body 2 in a tightly locked state. The second spring 14 provides a pushing force to make the driving press plate 9 and the positioning connecting rod 10 thereon move away from the hook base 1, so that the positioning connecting rod 10 can be stably inserted into the clamping groove 16 of the limiting rod 11, and the limiting operation of the driving plate 8 is realized, so as to reduce the situation that the movable hook body 3 is accidentally unlocked due to the movement of the driving plate 8 under external force. When it is needed to unlock the movable hook body 3, the fingers press the driving press plate 9 to make the positioning connecting rod 10 thereon separate from the clamping groove 16, and then the driving plate 8 is operated downward to make the connecting rod 7 slide downward, so as to drive the movable hook body 3 to move downward and separate from the fixed hook body 2 to complete the unlocking. When it is needed to lock the movable hook body 3, the driving plate 8 is moved upward to the position at the top of the sliding groove 6, the driving press plate 9 is pressed to make the positioning connecting rod 10 thereon move toward the hook base 1, the positioning connecting rod 10 is smoothly moved to one side of the clamping groove 16, and the limiting operation of the driving plate 8 is completed under the resetting action of the second spring 14, so as to ensure the stability of the locked state of the movable hook body 3 and the fixed hook body 2, and the operation is simple and convenient to use.

[0031] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A self-locking carabiner, characterized in that, The utility model provides hooking seat (1), one side fixed connection of top of hooking seat (1) has hook -shaped fixed hook body (2), the inside of hooking seat (1) and with fixed hook body (2) opposite side slidingly connected has movable hook body (3), the bottom of movable hook body (3) is installed first spring (13), the inside of hooking seat (1) and located movable hook body (3) one side is equipped with sliding slot (6), the inside slidingly connected with movable hook body (3) fixed connection of sliding slot (6) has connecting rod (7), the one end of connecting rod (7) away from movable hook body (3) is fixedly connected with the inside hollow structure of drive plate (8), the inside of drive plate (8) is equipped with the positioning assembly for fixed drive plate (8); The positioning assembly includes a drive button (9) slidingly connected inside the drive plate (8), a second spring (14) fixedly connected between the drive button (9) and the inner wall of the drive plate (8), and a positioning link (10) slidingly connected inside the drive plate (8) and located on one side of the connecting rod (7), the positioning link (10) is in an L-shaped structure, the hooking seat (1) is fixedly connected with a limiting rod (11) in an L-shaped structure on one side near the top of the sliding slot (6), the L-shaped end of the positioning link (10) extends between the limiting rod (11) and the hooking seat (1), one end of the positioning link (10) opposite to the L-shaped structure is fixedly connected with the drive button (9), a clamping groove (16) is formed on one side of the positioning link (10) near the hooking seat (1), and the L-shaped end of the positioning link (10) is inserted into the clamping groove (16) in cooperation.

2. A self-locking carabiner according to claim 1, characterized in that The hooking seat (1) is rotatably connected with a connecting shaft at the bottom, and the connecting shaft is fixedly connected with a connecting ring (4) at the bottom.

3. A self-locking carabiner according to claim 2, characterized in that The hooking seat (1), the fixed hook body (2), the movable hook body (3), and the connecting ring (4) are all made of aluminum alloy, and the connecting shaft is made of stainless steel.

4. A self-locking carabiner according to claim 3, characterized in that A connecting hole (5) is formed in the hooking seat (1), and an anti-skid texture (12) is formed on the outer surface of the drive button (9).

5. A self-locking carabiner according to claim 4, characterized in that A limiting plate (15) is fixedly connected to the outside of the positioning link (10) and located on one side of the drive plate (8) away from the drive button (9).

6. A self-locking carabiner according to claim 5, characterized in that The top of one side of the positioning link (10) connected with the clamping groove (16) is in an inclined surface structure.

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