Embedded locking pin safety hook

Abstract

The present application relates to the technical field of safety hooks, and in particular to an embedded locking pin safety hook, comprising a hook body, a vertical slot is provided at the upper end of the hook body, protrusions are arranged on the hook body on both sides of the outside of the vertical slot in a fixed structure, a locking rod is arranged on the vertical slot in a hinged structure, the middle part of the locking rod is hingedly connected to the vertical slot, a safety device is arranged on the side wall of the vertical slot in a rotating structure, when the safety device is in a locked state, its outer edge is embedded in the protrusion, and a torsion spring is arranged in the vertical slot for resetting the safety device. By arranging protrusions on the hook body on both sides of the vertical slot, the safety device is protected, the occurrence of opening due to collision with objects during hoisting is reduced, and the safety of hoisting is greatly improved.

Description

Technical field:

[0001] The present application relates to the technical field of safety hooks, and in particular to an embedded locking pin safety hook. Background technology:

[0002] Our company's utility model patent with authorization announcement number CN 202358830 U is a rotating safety hook rigging, which consists of a rotating lifting ring, a locking rod, a safety device, and a hook body. There is a vertical groove on the upper end of the hook body, and the middle part of the locking rod is clamped in the vertical groove and connected to the hook body with rivets. An elastic cylindrical pin is passed through the center holes of the safety device and the torsion spring in the vertical groove of the hook body. The two ends of the torsion spring are supported on the hook body and the safety device respectively, and the boss of the safety device is stuck in the notch of the locking lifting rod.

[0003] And the utility model patent with authorization announcement number CN 220011871 U - a horn-type self-locking safety hook, including a hook body, a supporting arm and a pull buckle, the top of the supporting arm is provided with a horn head for tying a rope, and the horn head is provided with a cross pin; the top of the hook body is provided with a receiving groove, the supporting arm is arranged in the receiving groove, and the supporting arm is rotatably connected to the hook body through a connecting shaft; the pull buckle is arranged in the receiving groove, and the pull buckle is rotatably connected to the hook body through a cylindrical pin, a torsion spring is sleeved on the cylindrical pin, and the two ends of the torsion spring are respectively abutted on the pull buckle and the hook body.

[0004] Both of the above patents use a safety buckle to prevent the locking rod holding arm from opening, but the safety buckles are protruding from the hook body, which can easily cause the locking rod to open due to accidental contact during hoisting, seriously affecting the safety of hoisting and posing a major safety hazard. Utility model content:

[0005] In order to solve the above technical problems, the utility model provides an embedded locking pin safety hook, which solves the technical problem that the locking rod is easily opened due to accidental collision during lifting, which seriously affects the safety of lifting and poses a major safety hazard.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] Flush-type locking pin safety hook, including:

[0008] hook body;

[0009] A vertical groove, which is provided at the upper end of the hook body;

[0010] Protrusions, which are arranged on the hook body on both sides of the outside of the vertical groove in a fixed structure manner;

[0011] A locking rod, the middle portion of which is hingedly arranged in the vertical slot;

[0012] A safety device is arranged in a rotating structure and connected to the side wall of the vertical slot, and when the safety device is in a locked state, its outer edge is buried in the protrusion; a torsion spring is arranged in the vertical slot and is used to reset the safety device.

[0013] Furthermore, an elastic cylindrical pin is arranged in the vertical slot in a fixed structure manner, and the elastic cylindrical pin passes through the safety device and the center hole of the torsion spring, and the two ends of the torsion spring are supported on the hook body and the safety device respectively.

[0014] Furthermore, a plane is provided on the hook body at the lower outer side of the vertical groove, and both ends of the plane extend to the bottom of the protrusion.

[0015] Furthermore, a slope surface is arranged on the inner side of the protrusion, and the slope surface extends inwardly to the outer edge of the vertical groove.

[0016] Furthermore, a rotating lifting ring is arranged on the upper part of the locking rod in a rotating structure.

[0017] Furthermore, a hanging ring is arranged on the upper part of the locking rod in a fixed structure manner.

[0018] Furthermore, a horn head is arranged on the upper part of the locking rod in a fixed structure manner.

[0019] The beneficial effect of the utility model is that protrusions are arranged on the hook bodies at both sides of the vertical slot, so as to protect the safety device, reduce the occurrence of opening due to collision with objects during hoisting, and greatly improve the safety of hoisting.

[0020] By setting a flat surface, the contact surface of human fingers is increased to avoid scratching the fingers;

[0021] The slope is provided to increase the width of the two protrusions to meet the requirement of opening the safety device with a thumb, which is ergonomically designed. Description of the drawings:

[0022] Figure 1 It is a main structural schematic diagram of the utility model.

[0023] Figure 2 It is a left-view structural schematic diagram of the upper part of the locking rod of the utility model.

[0024] Figure 3 It is a schematic diagram of the locking rod and the hanging ring structure of the utility model.

[0025] Figure 4 It is a schematic diagram of the locking rod and the horn head structure of the utility model.

[0026] In the figure:

[0027] 1. Hook body, 2. Protrusion, 3. Vertical groove, 4. Elastic cylindrical pin, 5. Safety device, 6. Locking rod, 7. Slope, 8. Flat surface, 9. Rotating lifting ring, 10. Lifting ring, 11. Claw head. Specific implementation method:

[0028] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0029] The embedded lock pin safety hook comprises a hook body 1, a vertical slot 3 is provided at the upper end of the hook body 1, protrusions 2 are arranged on the hook body 1 on both sides of the vertical slot 3 in a fixed structure, a locking rod 6 is arranged on the vertical slot 3 in a hinged structure, the middle part of the locking rod 6 is hingedly connected to the vertical slot 3, a safety device 5 is arranged on the side wall of the vertical slot 3 in a rotating structure, and when the safety device 5 is in a locked state, its outer edge is embedded in the protrusion 2 to ensure that the safety device 5 does not leak out and avoid accidental contact; a torsion spring is arranged in the vertical slot 3 to reset the safety device 5. By arranging protrusions on the hook body on both sides of the vertical slot, the safety device is protected, the occurrence of opening due to collision with objects during hoisting is reduced, and the safety of hoisting is greatly improved.

[0030] Specifically, an elastic cylindrical pin 4 is arranged in a fixed structure in the vertical slot 3, and the elastic cylindrical pin 4 passes through the safety device 5 and the center hole of the torsion spring. The two ends of the torsion spring are supported on the hook body 1 and the safety device 5 respectively.

[0031] It should be noted that a plane 8 is provided on the hook body 1 at the lower outer side of the vertical groove 3, and both ends of the plane 8 extend to the bottom of the protrusion 2. The design of the plane 8 increases the contact area with the fingers to prevent scratches on the fingers.

[0032] It should be explained that a slope 7 is provided on the inner side of the protrusion 2, and the slope 7 extends inward to the outer edge of the vertical groove 3. By providing the slope, the width between the two protrusions is increased to meet the requirement of opening the safety device with a human thumb, and it is more ergonomically designed.

[0033] The upper part of the locking rod 6 is provided with a rotating ring 9 in a rotating structure. The specific structure can be as follows: Figure 1 As shown, the rotating lifting ring 9 is provided with a through hole for the locking rod 6 to pass through, and a fixing bolt is provided after the locking rod 6 passes through the through hole to ensure the rotational connection relationship between the rotating lifting ring 9 and the locking rod 6; a bearing can also be provided in the through hole, and the bearing sleeve is arranged on the outside of the locking rod 6 to improve the flexibility of rotation.

[0034] In other embodiments, a hanging ring 10 (such as Figure 3 As shown), the locking rod 6 may also be provided with a horn head 11 in a fixed structure manner on the upper part (as shown Figure 4 as shown) for use with different tools.

[0035] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. Embedded lock pin safety hook, characterized in that: include: Hook body (1); A vertical groove (3), the vertical groove (3) is formed at the upper end of the hook body (1), a plane (8) is provided on the hook body (1) at the lower outer side of the vertical groove (3), and both ends of the plane (8) extend to the bottom of the protrusion (2); A protrusion (2), the protrusion (2) is arranged on the hook body (1) on both sides of the outside of the vertical groove (3) in a fixed structure manner, and a slope surface (7) is arranged on the inner side of the protrusion (2), and the slope surface (7) extends inwardly to the outer edge of the vertical groove (3); A locking rod (6), the middle portion of which is arranged in the vertical groove (3) in a hinged structure; A safety device (5), the safety device (5) is connected to the side wall of the vertical groove (3) in a rotating structure, and the outer edge of the safety device (5) is embedded in the protrusion (2) when the safety device (5) is in a locked state; A torsion spring is arranged in the vertical groove (3) and is used for resetting the safety device (5).

2. The embedded locking pin safety hook according to claim 1, characterized in that: An elastic cylindrical pin (4) is arranged in a fixed structure in the vertical groove (3), and the elastic cylindrical pin (4) passes through the safety device (5) and the center hole of the torsion spring. The two ends of the torsion spring are supported on the hook body (1) and the safety device (5) respectively.

3. The embedded locking pin safety hook according to claim 1, characterized in that: A rotating lifting ring (9) is arranged on the upper part of the locking rod (6) in a rotating structure.

4. The embedded locking pin safety hook according to claim 1, characterized in that: A hanging ring (10) is arranged on the upper part of the locking rod (6) in a fixed structure manner.

5. The embedded locking pin safety hook according to claim 1, characterized in that: The upper part of the locking rod (6) is provided with a horn head (11) in a fixed structure manner.

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