Quick self-locking device

Abstract

The utility model provides a quick self-locking device which comprises a self-locking device body provided with a working space, a hook arranged on the self-locking device body, and an anti-falling lock catch arranged on the self-locking device body and matched with the hook, and further comprises an anti-falling lock catch arranged on the self-locking device body and matched with the hook. The clamping convex block is rotationally arranged in the working space and can be matched with the side wall of the working space to clamp the rope when the clamping convex block is driven by the rope to rotate; the ejector rod is arranged in the clamping protruding block in a sliding mode and can press the rope on the working side wall when the rope is pulled in the forward direction. And the safety ring is arranged on the clamping convex block and is positioned in the axial extension direction of the ejector rod. According to the utility model, the safety can be improved, and the working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of latches, and particularly relates to a quick self-locking device. Background Art

[0002] A hook is a device that connects and fixes a hanging object through its own connection and hangs it in the air. In daily life, hooks have become very practical and convenient household items. Currently, hooks usually use extrusion to fix ropes. However, when locking ropes that are hard and smooth in their own materials, this type of hook cannot effectively lock, resulting in rope slippage, low safety, and low work efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a quick self-locking device for the deficiencies of the prior art. By the mutual cooperation of the clamping convex block, the ejector rod, and the safety buckle structure, the function of increasing the safety of rope use is realized, and the problems of low safety and low work efficiency are solved.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A quick self-locking device, including a self-locking device body, a working space opened in the self-locking device body, a hook arranged on the self-locking device body, an anti-slip lock arranged on the self-locking device body and cooperating with the hook, and further including a clamping convex block rotatably arranged in the working space and capable of cooperating with the side wall of the working space to clamp the rope when rotating driven by the rope; an ejector rod slidably arranged in the clamping convex block and capable of pressing the rope at the side wall of the working space when the rope is pulled forward; and a safety ring arranged on the clamping convex block in the axial extension direction of the ejector rod.

[0005] Preferably, a rope stop edge is arranged on the clamping convex block.

[0006] Preferably, a torsion spring groove is arranged in the clamping convex block, and a torsion spring is arranged between the torsion spring groove and the self-locking device body.

[0007] Preferably, a guiding angle is arranged in the self-locking device body.

[0008] Preferably, a rope passing hole is opened in the self-locking device body, and the rope passing hole is communicated with the working space.

[0009] Preferably, anti-slip lines I are arranged on the side wall of the working space, the anti-slip lines I are wavy, and anti-slip lines II capable of cooperating with the waves of the anti-slip lines I are arranged on the clamping convex block.

[0010] Preferably, a stable sliding groove is arranged on one side wall of the working space, and the rope stop edge slides in the stable sliding groove.

[0011] Preferably, an extrusion groove is provided in the body of the self-locking device, the ejector rod slides in the extrusion groove, the ejector rod includes a push rod, an extrusion cap provided at one end of the push rod close to the safety ring, and a pressing block provided at the other end far from the safety ring. The pressing block is slidably connected to the extrusion groove, a support block is fixedly provided in the extrusion groove, the support block is slidably connected to the push rod, and a spring is connected between the support block and the pressing block.

[0012] Preferably, one end of the pressing block away from the extrusion cap is in concave-convex fit with the anti-slip pattern one, and its shape is wavy.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) When the rope is pulled down in the present invention, the rope is in a vertical state, so that the extrusion force of the rope can drive the ejector rod to slide in the clamping convex block, thereby clamping the rope for the second time, further increasing the extrusion force on the rope, positioning the rope more tightly, and avoiding the situation that when clamping a smooth and hard rope, the clamping force is insufficient, resulting in the rope sliding and affecting the safety of the user.

[0015] (2) A safety ring is provided at the right end of the ejector rod of the present invention, which can limit the movement range of the rope at this position, and avoid the situation that when the rope is pulled down strongly, due to a series of external factors such as wind direction and pulling direction changes, the rope cannot effectively apply the pulling force of the rope to the end of the ejector rod, and the force receiving range at the end of the ejector rod is small, so it is very easy to separate the rope from the ejector rod 5, resulting in a reduction in safety and difficulty in ensuring the safety of the user.

[0016] (3) By setting the wavy anti-slip pattern one in the present invention, the friction with the rope can be increased. At the same time, when cooperating with the wavy anti-slip pattern two to squeeze the rope, the rope can be further in abutting fit with the wavy pattern. At the same time, the waves of the anti-slip pattern one and the anti-slip pattern two cooperate with each other. When squeezing the rope, the contact area between the rope and the extrusion convex block can be increased, thereby increasing the friction between the rope and the anti-slip pattern one and the anti-slip pattern two, and improving the clamping effect on the rope.

[0017] In summary, the present invention has the advantages of increasing the safety of the rope, improving the fastening of the rope, and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the body of the self-locking device of the present invention;

[0020] Figure 3 is a schematic diagram of the clamping convex block of the present invention;

[0021] Figure 4 For the present utility model Figure 1 Partial enlarged schematic view at position A in this Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0025] Embodiment 1

[0026] Figures 1 to 4 Schematically shows a centrifugal concentrator that is convenient for picking and placing in one embodiment of the present utility model.

[0027] As Figures 1 - 3 shown, this embodiment provides a quick self-locking device, including a self-locking device body 1, the self-locking device body 1 is provided with a working space 11, a hook 2 arranged on the self-locking device body 1, an anti-detachment lock catch 21 arranged on the self-locking device body 1 and cooperating with the hook 2, and further includes a clamping convex block 4 rotatably arranged in the working space 11 and capable of clamping the rope 3 when rotating under the drive of the rope 3 and cooperating with the side wall of the working space 11;

[0028] On the self-locking device body 1, there is an anti-disengagement mounting block 51. One end of the anti-disengagement lock 51 is movably installed on the self-locking device body 1, and the other end abuts against the hook 2 to close the notch of the hook 2. When the rope 3 is pulled counterclockwise, the rope 3 drives the clamping convex block 4 to rotate by its own frictional force. The clamping convex block 4 rotates to squeeze the rope 3 against the side wall of the working space 11 for positioning. When the rope 3 is pulled clockwise, the distance between the tightening convex block 4 and the left side wall of the working space 11 can be increased. Therefore, the rope 3 can be easily pulled between the two;

[0029] A push rod 4 that is slidably disposed within the clamping convex block 4 and can press the rope 3 against the inner side wall of the working space 11 when the rope 3 is pulled forward;

[0030] The rope 3 is slidably connected to the clamping convex block 4. When the rope 3 is pulled down, the rope 3 is in a vertical state. Thus, the rope 3 can drive the push rod 5 to slide within the clamping convex block 4 by the extrusion force of the rope 3, thereby performing secondary clamping on the rope, further increasing the extrusion force on the rope, and performing more secure positioning on the rope 3 to avoid the situation where when clamping the smooth and hard rope 3, the clamping force is insufficient, resulting in the rope 3 sliding and affecting the safety of the user;

[0031] A safety ring 41 provided on the clamping convex block 4 in the axial extension direction of the push rod 4;

[0032] A safety ring 41 is provided at the right end of the push rod 5, which can limit the movement range of the rope 3 at this position, avoiding the situation where when the rope 3 is pulled down strongly, due to a series of external factors such as wind direction and change in pulling direction, the rope 3 cannot effectively apply the pulling force of the rope 3 to the end of the push rod 5, and the stress range at the end of the push rod 5 is small, making it extremely easy for the rope 3 to separate from the push rod 5, resulting in a reduction in safety and difficulty in ensuring the safety of the user;

[0033] In order to further increase the safety effect of the safety ring 41, the aperture of the safety ring 41 should not be set too large. When the push rod 5 is in the initial state, the distance between the push rod 5 and the safety ring 41 is the distance of one rope 3.

[0034] Combined Figure 3 As shown, a rope retaining edge 42 is provided on the clamping convex block 4.

[0035] In this embodiment, when the rope 3 moves within the working space 11, in order to prevent the rope 3 clamped between the clamping convex block 4 and the side wall of the working space 11 from disengaging and causing the clamping to fail, therefore, in order to further improve the locking effect on the rope 3, a rope retaining edge 42 is provided on the clamping convex block 4 to limit the rope 3 between the clamping convex block 4 and the working space 11. The rope retaining edge 42 can effectively prevent the rope 3 from derailing, further increasing the safety of the rope 3 during use and greatly improving the safety.

[0036] Combined with Figure 3 As shown, a torsion spring groove 6 is provided inside the clamping lug 4, and a torsion spring 61 is provided between the torsion spring groove 6 and the self-locking device body 1.

[0037] In this embodiment, both ends of the torsion spring 61 are respectively connected to the torsion spring groove 6 and the front side wall of the working space. When the clamping lug 4 rotates, the torsion spring 61 stores energy. When the external force on the clamping lug 4 is removed, the torsion spring 61 releases elastic force to drive the clamping lug 4 to reset.

[0038] Combined with Figure 3 As shown, a guiding angle 12 is provided inside the self-locking device body 1.

[0039] In this embodiment, when threading the rope inside the self-locking device body 1, due to the existence of the guiding angle 12, it can play a guiding role to make the rope 3 enter from the right side of the working space 11 and pass through the front side of the working space 11 along the arc of the guiding angle. Subsequently, the safety ring 41 is pushed to drive the clamping lug 4 to rotate, and the rope 3 is placed between the clamping lug 4 and the left side wall of the working space 11.

[0040] Combined with Figure 3 As shown, the self-locking device body 1 is provided with a rope threading hole 13, and the rope threading hole 13 is communicated with the working space 11.

[0041] In this embodiment, the utility model has multiple rope threading methods and diverse usage methods. It can be threaded into from the right side of the working space 11, or the rope 3 can be directly threaded into from the rope threading hole 13 and pass through the front side of the working space 11. Subsequently, the safety ring 41 is pushed to drive the clamping lug 4 to rotate, and the rope 3 is placed between the clamping lug 4 and the left side wall of the working space 11.

[0042] Combined with Figure 1 As shown, anti-slip lines one 14 are provided on the side wall of the working space 11, the anti-slip lines one 14 are wavy, and anti-slip lines two 15 that can cooperate with the waves of the anti-slip lines one 14 are provided on the clamping lug 4.

[0043] In this embodiment, the wavy anti-slip lines one 14 can increase the friction with the rope 3. At the same time, when cooperating with the wavy anti-slip lines two 15 to squeeze the rope 3, it can further make the rope 3 abut and cooperate with the waves. At the same time, the waves of the anti-slip lines one 14 and the anti-slip lines two 15 cooperate with each other, and when squeezing the rope 3, it can increase the contact area between the rope 3 and the extrusion lug 4, thereby increasing the friction between the rope 3 and the anti-slip lines one 14 and the anti-slip lines two 15, and improving the clamping effect on the rope 3.

[0044] Combined with Figure 1 、 4 As shown, a stable sliding groove 111 is provided on one side wall of the working space 11, and the rope edge stop 42 slides in the stable sliding groove 111.

[0045] In this embodiment, the rope edge guard 42 slides in the stable chute 111. When in high-intensity use, the clamping bump 4 is prone to shaking, and frequent shaking will affect the service life. Sliding the rope edge guard 42 in the stable chute 111 can, on the one hand, reduce the shaking of the clamping bump 4, and on the other hand, increase the stability. When the force is transmitted to the rope edge guard 42 when the rope 3 shakes, the force on the rope edge guard 42 is more uniform, avoiding applying all the force on the clamping bump 4 and the self-locking device body 1.

[0046] Combined with Figure 3 As shown, an extrusion groove 43 is formed in the self-locking device body 1, and the ejector rod 5 slides in the extrusion groove 43. The ejector rod 5 includes a push rod 51, an extrusion cap 52 arranged at one end of the push rod 51 close to the safety ring 41, and a pressing block 53 arranged at the end far from the safety ring 41. The pressing block 53 is slidably connected to the extrusion groove 43. A support block 54 is fixedly arranged in the extrusion groove 43. The support block 54 is slidably connected to the push rod 51, and a spring is connected between the support block 54 and the pressing block 53.

[0047] In this embodiment, the extrusion cap 52 is arranged at one end of the push rod 51 close to the safety ring 41, which can increase the contact area with the rope 3, so that the force on the extrusion cap 52 is more uniform, and at the same time, it can ensure to the greatest extent that the force of the rope 3 can act on the push rod 51 through the extrusion cap 52. When the spring is in the initial state, it is in the natural state. When the extrusion cap 52 acts on the push rod 51, the push rod 51 drives the extrusion block 53 to clamp and limit the rope 3. When the extrusion cap 52 loses the thrust of the rope 3, it drives the extrusion block 53 to return to the initial position under the pulling force of the spring, which is convenient for the next use.

[0048] Combined with Figure 3 As shown, one end of the pressing block 55 far from the extrusion cap 52 is in concave-convex fit with the anti-slip pattern 14 on the working space 11, and its shape is wavy.

[0049] In this embodiment, one end of the pressing block 55 close to the left side wall of the working space 11 is set to be wavy, which can cooperate with the wavy shape on one side wall of the working space 11 to clamp the rope.

[0050] Working steps

[0051] During use, thread the rope 3 into the right side of the working space 11 and thread it out from the front side of the working space 11 along the arc of the guiding angle. At this time, thread the right end of the rope 3 downward through the safety ring 41, and then push the safety ring 41 to drive the clamping lug 4 to rotate. Place the rope 3 between the clamping lug 4 and the left side wall of the working space 11. When pulling the right end of the rope 3, the frictional force of the rope 3 can drive the clamping cam 4 to rotate clockwise in the positive direction, so that the rope 3 can be tightly pressed between the anti-slip pattern 14 and the anti-slip pattern 15. At the same time, when the rope 3 moves downward, it presses the extrusion cap 52, and the extrusion cap 52 drives the push rod 51 to act. The spring is in a natural state in the initial state. When the extrusion cap 52 acts on the push rod 51, the push rod 51 drives the extrusion block 53 to clamp and limit the rope 3. When the extrusion cap 52 loses the thrust of the rope 3, the spring's pulling force drives the extrusion block 53 to return to the initial position for the next use. When pulling the left end of the rope 3, it drives the clamping lug 4 to rotate counterclockwise in the reverse direction. At this time, the rope 3 loses the clamping force and can be pulled downward continuously; when lifting lightweight items, the rope 3 can also be directly inserted into the rope through-hole 13 during threading and then threaded out between the anti-slip pattern 14 and the anti-slip pattern 15. When the rope 3 enters between the anti-slip pattern 14 and the anti-slip pattern 15, manually turn the safety ring 41 to drive the clamping lug 4 to rotate, so that the clamping cam 4 rotates away from the anti-slip pattern 14, facilitating the rope 3 to be inserted between the anti-slip pattern 14 and the anti-slip pattern 15.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick self-locking device, comprising a self-locking device body, a working space is provided on the self-locking device body, a hook provided on the self-locking device body, and an anti-disengagement lock catch provided on the self-locking device body and cooperating with the hook, characterized in that, Further included is a clamping projection rotatably arranged in the working space, which can cooperate with the side wall of the working space to clamp the rope when rotating driven by the rope. A push rod is slidably arranged in the clamping projection, which can press the rope at the side wall of the working space when the rope is pulled forward. And A safety ring is arranged on the clamping projection in the axial extension direction of the push rod.

2. The quick self-locking device according to claim 1, wherein, The rope edge stop is arranged on the clamping projection.

3. The quick self-locking device according to claim 2, wherein, A torsion spring groove is arranged in the clamping projection, and a torsion spring is arranged between the torsion spring groove and the self-locking device body.

4. A quick self-locking device according to claim 1, characterized in that, A guiding angle is arranged in the self-locking device body.

5. A quick self-locking device according to claim 1, characterized in that, The self-locking device body is provided with a rope passing hole, and the rope passing hole is communicated with the working space.

6. A quick self-locking device according to any one of claims 1-5, characterized in that, Anti-slip lines I are arranged on the side wall of the working space, the anti-slip lines I are wavy, and anti-slip lines II capable of cooperating with the waves of the anti-slip lines I are arranged on the clamping projection.

7. A quick self-locking device according to any one of claims 1-5, characterized in that, A stable sliding groove is arranged on one side wall of the working space, and the rope edge stop slides in the stable sliding groove.

8. A quick self-locking device according to claim 1, characterized in that, An extrusion groove is arranged in the self-locking device body, the push rod slides in the extrusion groove, the push rod includes a push rod body, an extrusion cap arranged at one end of the push rod body close to the safety ring, and a pressing block arranged at the end far from the safety ring. The pressing block is slidably connected with the extrusion groove, a support block is fixedly arranged in the extrusion groove, the support block is slidably connected with the push rod body, and a spring is connected between the support block and the pressing block.

9. The quick self-locking device according to claim 8, characterized in that, One end of the pressing block far from the extrusion cap is in concave-convex fit with the anti-slip lines I, and its shape is wavy.

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