Anti-unhooking device for lifting hook
By adopting structures such as clamping rods, inserting rods and steel ball springs in the hook anti-dehook device, the problem of insufficient adaptability of hooks to larger-sized lifting rings in the prior art is solved, and effective anti-dehooking and removal of hooks is achieved. Improved flexibility in use.
Patent Information
- Application Number
- CN202421202400.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When the existing hook anti-decoupling device faces a larger size lifting ring, the structure cannot be adapted, resulting in a reduction in the practicality of the hook and the inability to effectively prevent hooking.
A hook anti-dehook device is designed, using structures such as card joint rod, insert rod and steel ball spring. The card joint rod is fixed by turning the card joint rod and insert rod through the card joint rod. Combining the steel ball spring and pull ring to ensure that the hook is in use. When not decoupling, the insertion rod position is fixed through the connecting rope to enhance the adaptability of the hook.
It effectively prevents the hook from being decoupled during use, improves the safety of lifting and the practicality of hooks, can adapt to larger-sized lifting rings, and improves the flexibility and safety of hooks.
Smart Images
Figure CN222293388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-hooking devices, in particular to an anti-hooking device for a lifting hook. Background Art
[0002] At present, the hook is the most common lifting device in lifting machinery. When in use, the objects to be lifted are hung on the hook through rigging, and the objects are transferred as the hook is lifted. In order to avoid safety accidents caused by the rigging slipping out of the hook during lifting, the hook must be equipped with an anti-unhooking device.
[0003] After searching, a Chinese patent discloses a hook anti-unhooking device (authorization announcement number: CN 219771523U), including a main hook body, an anti-unhooking structure, the end face of the main hook body is integrally formed with a column, the end face of the column is integrally formed with an auxiliary hook body, the anti-unhooking structure includes a blocking block, a support, a return column bar, a spring, and an arc groove is opened on the outside of the blocking block. The technical solution of the utility model is to overlap the rope to be lifted on the auxiliary hook body along the inner side of the main hook body, and the auxiliary hook body is used for hooking. If the auxiliary hook body is separated from the rope, the main hook body can still hook the unhooked rope, which greatly avoids the situation of hook unhooking during lifting, and the blocking block can prevent the return column bar from rotating toward the blocking block, thereby preventing the rope located at the main hook body from being unhooked, and preventing the rope that slides to the main hook body from further being separated from the main hook body, which greatly improves the safety of lifting.
[0004] In actual application, this patented technology can prevent objects from falling off the hook and causing personal injury or damage to objects. However, during use, the size of the lifting ring on the heavy object will increase with the weight of the heavy object to adapt to the weight of the heavy object. The above-mentioned solution structurally makes it impossible for the hook to hang a larger lifting ring, which greatly reduces the practicality of the hook. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a hook anti-unhooking device.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A hook anti-unhooking device comprises a hook body, a through slot is provided on the top of the hook body, a clamping rod is provided in the middle section of the hook body, one end of the clamping rod is arranged inside the hook body through the through slot, one end of the clamping rod is provided with a connecting rod, the connecting rod is arranged inside the hook body through the through slot, one end of the clamping rod is sleeved on the connecting rod and rotatably connected with the connecting rod, both ends of the connecting rod pass through the hook body and are fixedly connected with the hook body, the other end of the hook body is provided with a clamping slot, the other end of the clamping rod is movably connected to the inside of the hook body through the clamping slot, and an insertion rod is provided on one side of the other end of the hook body, one end of the insertion rod passes through the hook body and the clamping rod and extends to the other side of the other end of the hook body, and the insertion rod is slidably connected to the hook body and the clamping rod.
[0008] Preferably, a placement groove is opened inside one end of the insertion rod, and a steel ball spring and a hemispherical steel ball are arranged inside the insertion rod through the placement groove. The steel ball spring is arranged below the hemispherical steel ball, and the top of the hemispherical steel ball penetrates the inner wall of the insertion rod and is movably connected with it.
[0009] Preferably, a pull ring is provided at the other end of the insertion rod, and the pull ring is fixedly connected to the insertion rod.
[0010] Preferably, the other end of the pull ring is fixedly connected to a connecting rope, and the other end of the connecting rope is fixedly connected to the hook body.
[0011] Preferably, the length of the through slot is greater than the length of the clamping rod.
[0012] Preferably, one end of the insertion rod is configured as a cone.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, the connecting rod is flipped at the connection between the connecting rod and the hook body so that the other end of the connecting rod is connected to the inside of the connecting groove. One end of the insertion rod is passed through the hook body and the connecting rod and extended to the other side of the hook body, so that the other end of the connecting rod can be fixed, and the connecting rod can close the opening of the hook body to prevent the hook from being unhooked when in use, thereby solving the problem of insufficient practicality of the current hook. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the anti-unhooking device for the lifting hook in the utility model.
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the hook body in the utility model.
[0017] Figure 3It is a schematic diagram of the cross-sectional structure of the insertion rod in the utility model.
[0018] Figure 4 This is a schematic diagram of the connection structure of the plug rod, the pull ring and the connecting rope in the utility model.
[0019] Legend:
[0020] 1. Hook body; 2. Through slot; 3. Snap-on rod; 4. Connecting rod; 5. Snap-on slot; 6. Inserting rod; 7. Placement slot; 8. Steel ball spring; 9. Hemispherical steel ball; 10. Pull ring; 11. Connecting rope. 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] Reference Figure 1-4 The utility model provides an embodiment of a hook anti-unhooking device, comprising a hook body 1, a through slot 2 is provided on the top of the hook body 1, a clamping rod 3 is provided in the middle section of the hook body 1, one end of the clamping rod 3 is arranged inside the hook body 1 through the through slot 2, and a connecting rod 4 is provided at one end of the clamping rod 3, the connecting rod 4 is arranged inside the hook body 1 through the through slot 2, one end of the clamping rod 3 is sleeved on the connecting rod 4 and rotatably connected with it, both ends of the connecting rod 4 pass through the hook body 1 and are fixedly connected with it, the other end of the hook body 1 is provided with a clamping slot 5, the other end of the clamping rod 3 is movably connected to the inside of the hook body 1 through the clamping slot 5, and an insertion rod 6 is provided on one side of the other end of the hook body 1, one end of the insertion rod 6 passes through the hook body 1 and the clamping rod 3 and extends to the other side of the other end of the hook body 1, and the insertion rod 6 is slidably connected to the hook body 1 and the clamping rod 3.
[0023] Through the above technical solution, the connecting rod 3 is flipped at the connection between the connecting rod 3 and the hook body 1, so that the other end of the connecting rod 3 is clamped in the inside of the clamping groove 5, and one end of the insertion rod 6 is passed through the hook body 1 and the connecting rod 3 and extended to the other side of the hook body 1. In this way, the other end of the connecting rod 3 can be fixed, and the connecting rod 3 can close the opening of the hook body 1 to prevent the hook from being unhooked when in use.
[0024] Specifically, a placement groove 7 is opened inside one end of the insertion rod 6, and a steel ball spring 8 and a hemispherical steel ball 9 are arranged inside the insertion rod 6 through the placement groove 7. The steel ball spring 8 is arranged below the hemispherical steel ball 9, and the top of the hemispherical steel ball 9 passes through the inner wall of the insertion rod 6 and is movably connected with it.
[0025] Through the above technical solution, by setting the steel ball spring 8 and the hemispherical steel ball 9, under the action of the semi-steel ball spring 8, the hemispherical steel ball 9 can be pushed to always be located on the outside of the insertion rod 6, thereby preventing the insertion rod 6 from falling off from the inside of the hook body 1 and the clamping rod 3.
[0026] Specifically, a pull ring 10 is provided at the other end of the insertion rod 6 , and the pull ring 10 is fixedly connected to the insertion rod 6 .
[0027] Through the above technical solution, by setting the pull ring 10, an effective force point can be provided when pulling the insertion rod 6, so that the staff can easily pull the insertion rod 6 out from the inside of the hook body 1 and the clamping rod 3 through the pull ring 10.
[0028] Specifically, the other end of the pull ring 10 is fixedly connected to a connecting rope 11 , and the other end of the connecting rope 11 is fixedly connected to the hook body 1 .
[0029] Through the above technical scheme, by setting the connecting rope 11, the position of the insertion rod 6 can be indirectly limited through the pull ring 10 through the connecting rope 11, and the insertion rod 6 can always be fixed on one side of the hook body 1, which can be convenient for the staff to take and use, and can also prevent the staff from accidentally losing the insertion rod 6.
[0030] Specifically, the length of the through slot 2 is greater than the length of the clamping rod 3 .
[0031] Through the above technical solution, the length of the through slot 2 is greater than the length of the clamping rod 3. By flipping the clamping rod 3 at the connection between the clamping rod 3 and the hook body 1, the clamping rod 3 can be flipped to the other side of the hook body 1, which can facilitate the staff to hang objects on the hook body 1.
[0032] Specifically, one end of the insertion rod 6 is configured as a cone.
[0033] Through the above technical solution and the above arrangement, it is convenient for the staff to insert the insertion rod 6 into the inside of the hook body 1 and the clamping rod 3 to clamp the clamping rod 3 into the inside of the clamping groove 5 on the hook body 1 .
[0034] Working principle: When in use, when the lifting ring needs to be hung on the hook body 1, first, the clamping rod 3 is flipped at the connection between the clamping rod 3 and the hook body 1, so that the clamping rod 3 is flipped to the other side of the hook body 1 to prevent the clamping rod 3 from being at the opening of the hook body 1 and affecting the staff's hanging of the lifting ring and the hook body 1. After the hanging is completed, the clamping rod 3 is flipped again at the connection between the clamping rod 3 and the hook body 1 so that the other end of the clamping rod 3 is clamped in the inside of the clamping groove 5, and one end of the insertion rod 6 is passed through the hook body 1 and the clamping rod 3 and extended to the other side of the hook body 1, so that the other end of the clamping rod 3 can be fixed, so that the clamping rod 3 closes the opening of the hook body 1 to prevent the hook from being unhooked during use.
[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A hook anti-unhooking device, comprising a hook body (1), characterized in that: A through slot (2) is provided on the top of the hook body (1); a clamping rod (3) is provided in the middle section of the hook body (1); one end of the clamping rod (3) is arranged inside the hook body (1) through the through slot (2); one end of the clamping rod (3) is provided with a connecting rod (4); the connecting rod (4) is arranged inside the hook body (1) through the through slot (2); one end of the clamping rod (3) is sleeved on the connecting rod (4) and is rotatably connected thereto; both ends of the connecting rod (4) penetrate the hook body. The hook body (1) is fixedly connected thereto, the other end of the hook body (1) is provided with a snap-in groove (5), the other end of the snap-in rod (3) is movably connected to the inside of the hook body (1) through the snap-in groove (5), and one side of the other end of the hook body (1) is provided with an insertion rod (6), one end of the insertion rod (6) passes through the hook body (1) and the snap-in rod (3) and extends to the other side of the other end of the hook body (1), and the insertion rod (6) is slidably connected to the hook body (1) and the snap-in rod (3).
2. A hook anti-unhooking device according to claim 1, characterized in that: A placement groove (7) is provided inside one end of the insertion rod (6), and a steel ball spring (8) and a hemispherical steel ball (9) are arranged inside the insertion rod (6) through the placement groove (7). The steel ball spring (8) is arranged below the hemispherical steel ball (9), and the top of the hemispherical steel ball (9) penetrates the inner wall of the insertion rod (6) and is movably connected thereto.
3. The hook anti-unhooking device according to claim 1, characterized in that: A pull ring (10) is provided at the other end of the insertion rod (6), and the pull ring (10) is fixedly connected to the insertion rod (6).
4. A hook anti-unhooking device according to claim 3, characterized in that: The other end of the pull ring (10) is fixedly connected to a connecting rope (11), and the other end of the connecting rope (11) is fixedly connected to the hook body (1).
5. The hook anti-unhooking device according to claim 1, characterized in that: The length of the through slot (2) is greater than the length of the clamping rod (3).
6. A hook anti-unhooking device according to claim 1, characterized in that: One end of the insertion rod (6) is configured as a cone.