Anti-falling tail hook
By designing anti -section hooks, using sliding and anti -defense paths to limit hook sales to solve the problem of low and small trailer hook sales, and achieve higher security and economy.
Patent Information
- Application Number
- CN202421169145.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Low-sized, small trailers are prone to hook pins falling off due to body size problems. Traditional hook pins are difficult to effectively prevent falling off, resulting in safety hazards.
Designed a kind of anti -tail hook, including hook sales, tail hooks, upper panels, and lower hooks. The upper panel of the tail hook and the inner wall on the lower panel are set with slipping. The anti -defense path restricts the movement of anti -departure and prevent it from falling off.
Effectively prevent hook sales, improve the reliability and safety of the trailer, and the structure is compact and low in cost.
Smart Images
Figure CN222407864U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a trailer tail hook, in particular to an anti-dropping tail hook. Background Art
[0002] Unpowered cargo trailers are widely used in cargo distribution centers such as airports, railway stations, and post offices. The tail hook is the main mechanism for connecting unpowered trailers. During the operation of the vehicle, the hook pin may fall off, causing serious accidents. Therefore, a reliable anti-falling tail hook is the key mechanism for the reliability of unpowered trailers, so a new structure that effectively prevents the hook pin from falling off is urgently needed. Utility Model Content
[0003] The utility model aims to solve the problem that the hook pin of a low and small trailer is easy to fall off due to the size of the trailer body and the traditional hook pin is not suitable, and thus an anti-falling tail hook is proposed.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] An anti-dropout tail hook, characterized in that it comprises a hook pin, a tail hook upper plate, and a tail hook lower plate, wherein the tail hook upper plate and the tail hook lower plate are respectively provided with a hole, and the inner walls of the two holes are respectively provided with two sliding grooves, an anti-dropout pin is provided at the bottom end of the hook pin, and the hook pin passes through the holes on the tail hook upper plate and the tail hook lower plate.
[0006] Preferably, the hook pin also includes a handle and a hook pin body, wherein the handle is arranged at the upper end of the hook pin body and is hinged to the hook pin body, and the anti-drop pin is arranged on the side wall of the lower end of the hook pin body and is integrally connected to the hook pin body.
[0007] Preferably, the tail hook lower plate includes an A plate and a B plate, each of which has a hole, and the inner walls of the two holes are respectively provided with two slide grooves, and the A plate and the B plate are integrally connected, and the hole on the tail hook lower plate and the slide groove on the inner wall of the hole are composed of the holes on the A plate and the B plate and the slide groove on the inner wall of the hole.
[0008] Preferably, the slide grooves on the A plate and the B plate form an anti-slip passage, and the path of the anti-slip passage is divided into three sections, namely a vertical section, an inclined section, and a vertical section.
[0009] Preferably, the inner wall width of the anti-slip passage is slightly larger than the diameter of the anti-slip pin.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] Compared with traditional hook pins, it has the advantages of being not easy to fall out, compact structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A schematic diagram of an anti-drop tail hook;
[0013] Figure 2 Schematic diagram of the hook pin structure;
[0014] Figure 3 Schematic diagram of the anti-fall channel
[0015] In the figure: 1-hook pin, 2-tail hook upper plate, 3-tail hook lower plate, 11-handle, 12-hook pin body, 13-anti-slip pin, 31-A plate, 32-B plate, 33-anti-slip channel. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0017] like Figure 1-3 As shown, an anti-dropout tail hook comprises a hook pin 1, a tail hook upper plate 2, and a tail hook lower plate 3, wherein the tail hook upper plate 2 and the tail hook lower plate 3 are respectively provided with a hole, and two sliding grooves are respectively provided on the two hole walls, and the hook pin 1 passes through the two holes. The hook pin 1 also comprises a handle 11, a hook pin body 12, and an anti-dropout pin 13, wherein the handle 11 is arranged at the upper end of the hook pin body 12 and is hinged to the hook pin body 12, and the anti-dropout pin 13 is arranged on the side wall of the lower end of the hook pin body 12 and is integrally connected to the hook pin body 12. The tail hook lower plate 3 is composed of an A plate 31 and a B plate 32, wherein the slide grooves on the hole walls of the A plate 31 and the B plate 32 have a section of an oblique groove, the oblique groove is inclined in the direction of the hole wall, the two oblique groove openings are connected, and the two slide grooves together form an anti-slip channel 33, the anti-slip channel 33 is used to limit the path of the anti-slip pin 13, the upper notch of the anti-slip channel 33 and the lower notch are not in the same vertical plane, and the path defined by the anti-slip channel 33 is composed of three sections, which are a vertical section, an inclined section, and a vertical section in sequence. The A plate 31 is integrally connected with the B plate 32, and the slide groove of the tail hook upper plate 2 is a vertical slide groove.
[0018] When in use, first pass the hook pin 1 through the tail hook upper plate 2, then rotate the hook pin 1 through the anti-drop channel 33 and pass through the tail hook lower plate 3 to complete the installation of the hook pin 1. Under normal circumstances, the anti-drop pin 13 is at the lower part of the tail hook lower plate 3, and the projection area of the anti-drop pin in the vertical direction is 18.218mm 2 , the anti-dropping movement circular projection area is 325.94mm 2 , the probability (calculated by the notch area) of the anti-drop pin 13 entering the notch below the tail hook lower plate 3 during movement is 5.6%. When the anti-drop pin 13 just enters the notch below the tail hook lower plate 3, it enters the anti-drop channel 33. Because there is a small platform on the upper part of the straight section at the lower end of the anti-drop channel 33, it can prevent the anti-drop pin from continuing to move upward. Even if it moves upward and enters the oblique groove of the channel, due to the height difference, the anti-drop pin 13 automatically falls back to the lower notch under the action of gravity.
[0019] The above description 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. An anti-drop tail hook, characterized in that: The invention comprises a hook pin (1), a tail hook upper plate (2), and a tail hook lower plate (3), wherein the tail hook upper plate (2) and the tail hook lower plate (3) are respectively provided with a hole, and the inner walls of the two holes are respectively provided with two sliding grooves, and an anti-drop pin (13) is provided at the bottom end of the hook pin (1), and the hook pin (1) passes through the holes on the tail hook upper plate (2) and the tail hook lower plate (3).
2. The anti-drop tail hook according to claim 1, characterized in that: The hook pin (1) also includes a handle (11) and a hook pin body (12).
3. The anti-drop tail hook according to claim 2, characterized in that: The handle (11) is arranged on the upper end of the hook pin body (12) and is hinged to the hook pin body (12).
4. The anti-drop tail hook according to claim 2, characterized in that: The anti-drop pin (13) is arranged on the side wall of the lower end of the hook pin body (12) and is integrally connected to the hook pin body (12).
5. The anti-drop tail hook according to claim 1, characterized in that: The tail hook lower plate (3) comprises an A plate (31) and a B plate (32), wherein the A plate (31) and the B plate (32) are respectively provided with a hole, and the inner walls of the two holes are respectively provided with two slide grooves, and the A plate (31) and the B plate (32) are integrally connected, and the hole on the tail hook lower plate (3) and the slide groove on the inner wall of the hole are composed of the holes on the A plate (31) and the B plate (32) and the slide groove on the inner wall of the hole.
6. The anti-drop tail hook according to claim 5, characterized in that: The slide grooves on the A plate (31) and the B plate (32) form an anti-slip passage (33), and the anti-slip passage (33) is divided into three sections, namely a vertical section, an inclined section, and a vertical section.
7. The anti-drop tail hook according to claim 6, characterized in that: The width of the inner wall of the anti-slip passage (33) is slightly greater than the diameter of the anti-slip pin (13).