Anti-falling safety device with lug straight handle single hook
By designing the anti -off safety device with a single -hook with convex ears, the structure of the U -shaped gear and the thread of the sales shaft is used to solve the problem of short life and insufficient safety of the existing anti -detachment and safety device. High safety factor and longer service life.
Patent Information
- Application Number
- CN202421072879.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing anti-detachment safety devices have shortcomings in terms of service life and safety, with spring-type easily damaged and gravity-type short service life.
Design a anti -departure safety device with a single -hook single -hook, using a U -shaped shield, earboard, baffle, sales shaft and fixed nut structure. The self -weight effect, realize automatic return and better anti -off effects.
This device can effectively prevent the inhuman from the poured and steel wire rope, improve the safety factor, extend the service life, reduce the frequency of daily maintenance, and reduce costs and labor intensity.
Smart Images
Figure CN222389398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary accessories for lifting hooks, in particular to an anti-dropping safety device for a single hook with a lug and a straight handle. Background Art
[0002] The hook is the most common tool in lifting machinery. The hook is often suspended on the wire rope of the lifting mechanism with the help of pulleys and other components. In order to ensure safety in use, standards such as "GB / T 13752-2017 Design Specifications for Tower Cranes" and "GB / T 5031-2019 Tower Cranes" require the installation of a device to prevent the unintentional release of the object-retrieving device (sling or sling). There are currently two commonly used anti-release devices on the market: the first is spring type; the second is gravity type. The disadvantage of the spring type is that the spring is particularly easy to damage. There are also different types of gravity types on the market, but they also generally have the problem of short service life. Summary of the invention
[0003] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides an anti-dropping safety device of a single hook with a lug and a straight handle, which has a simple structure, is safe to use and has a long service life.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-slip safety device for a single hook with a straight handle and a lug, comprising a baffle rod, an ear plate, a baffle plate, a pin shaft and a fixing nut, the baffle rod being in a U-shaped structure, and the two long sides of the U-shape being in an arc shape, two ear plates being provided in the middle of the top of the baffle plate, a pin shaft being passed through the ear plates, the baffle plate being connected to the single hook with a straight handle and a lug through the ear plates and the pin shaft, a reserved hole being provided on the lug of the single hook with a straight handle and a lug, the pin shaft passing through the reserved hole, a thread being provided on the end of the pin shaft, and a fixing nut being installed, the baffle rod being connected to the inner side of the baffle plate.
[0005] In the above technical solution, a through hole is provided at one end of the pin shaft with a thread, and the through hole is outside the fixing nut, and a cotter pin is installed in the through hole.
[0006] In the above technical solution, the distance between the two long sides of the blocking rod is greater than the width of the single hook with a straight handle and a lug.
[0007] In the above technical solution, a circular arc groove is provided at the bottom of the baffle, and the circular arc groove is adapted to the shape of the single hook with a straight handle and a lug.
[0008] In the above technical solution, the distance between the two ear plates matches the lug thickness of the straight-shank single hook with lug.
[0009] The beneficial effects of the utility model are as follows: the anti-slip safety device can rotate along the pin shaft with threads and holes at the end, which is convenient for hanging the sling and the wire rope on the hook; the anti-slip safety device can automatically return to its original position under the deadweight of the arc-shaped baffle rod, so that the arc groove of the baffle plate with arc groove at the bottom is completely fitted with the single hook with straight handle and lug, which can better play the anti-slip effect and has a high safety factor; the length of the pin shaft with threads and holes at the end is matched according to the lug of the single hook with straight handle and lug, and the length is very short. Compared with the traditional method, the stress condition is greatly improved, the service life of the anti-slip safety device is greatly extended, and it is durable; the frequency of daily maintenance is reduced, and the cost and labor intensity are effectively reduced, which is suitable for the anti-slip use of the single hook with straight handle and lug. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model.
[0011] Figure 2 It is the installation diagram of the utility model.
[0012] Figure 3 for Figure 2 Schematic diagram of the structure of a single hook with a straight handle and a lug in the middle.
[0013] Among them: 1. Single hook with straight handle and lug; 2. Anti-slip safety device; 21. Stop rod; 22. Split pin; 23. Fixing nut; 24. Pin shaft; 25. Ear plate; 26. Baffle. DETAILED DESCRIPTION
[0014] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] like Figure 1 , Figure 2 The anti-slip safety device 2 of the single hook with lug and straight handle is shown. When in use, the anti-slip installation device 2 is installed on the single hook with lug and straight handle 1. The single hook with lug and straight handle 1 is as shown in FIG. Figure 3 As shown, the anti-slip installation device 2 includes a baffle rod 21, an ear plate 25, a baffle plate 26, a pin 24 and a fixing nut 23. The baffle rod 21 is in a U-shaped structure, and the two long sides of the U-shape are in an arc shape. Two ear plates 25 are provided in the middle of the top of the baffle plate 26, and the pin 24 is passed through the ear plate 25. The baffle plate 26 is connected to the single hook 1 with a straight handle with a lug through the ear plate 25 and the pin 24. The lug of the single hook 1 with a straight handle is provided with a reserved hole, and the pin 24 passes through the reserved hole. The end of the pin 24 is provided with a thread and is installed with a fixing nut 23. The baffle rod 21 is connected to the inner side of the baffle plate 26.
[0016] In the above technical solution, a through hole is provided at one threaded end of the pin shaft 24, and the through hole is outside the fixing nut 23, and a split pin 22 is installed in the through hole. The split pin 22 is arranged outside the fixing nut 23 to prevent the fixing nut 23 from falling off the pin shaft 24 due to vibration during long-term use.
[0017] In the above technical solution, the distance between the two long sides of the blocking rod 21 is greater than the width of the single hook with lug and straight handle 1. The blocking rod 21 rotates around the single hook with lug and straight handle 1, and the distance between the two long sides is greater than the width of the single hook with lug and straight handle 1, so as to prevent the blocking rod 21 from rotating out of position and getting stuck on the single hook with lug and straight handle 1, so that the baffle 26 is closed in place and the anti-slip effect is improved.
[0018] In the above technical solution, the bottom of the baffle 26 is provided with an arc groove, which is adapted to the shape of the single hook with lug and straight handle 1. The arc groove is completely fitted with the single hook with lug and straight handle 1, which can better prevent the hook from falling off and has a high safety factor.
[0019] In the above technical solution, the distance between the two ear plates 25 matches the lug thickness of the lug-bearing straight-shank single hook 1. When the baffle plate 26 is subjected to the gravity of the baffle rod 21, it will not get stuck and rotate smoothly.
[0020] The anti-slip safety device 2 can rotate along the pin shaft 24 with a thread and a hole at the end (that is, the through hole mentioned above), which is convenient for hanging the sling and the wire rope on the straight-handled single hook 1 with a lug. Under the action of the deadweight of the baffle rod, the anti-slip safety device can automatically return to its position, so that the arc groove of the baffle plate 26 with an arc groove at the bottom is completely fitted with the straight-handled single hook 1 with a lug, which can better play an anti-slip effect and has a high safety factor; the length of the pin shaft 24 with a thread and a hole at the end is matched according to the lug of the straight-handled single hook 1 with a lug, and the length is very short. Compared with the traditional method, the stress condition is greatly improved, which greatly extends the service life of the anti-slip safety device and is durable; reduces the frequency of daily maintenance, effectively reduces costs and labor intensity, and is suitable for the anti-slip use of the straight-handled single hook with a lug.
[0021] 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 changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-drop safety device for a single hook with a lug and a straight handle, characterized by: It includes a baffle rod, an ear plate, a baffle plate, a pin and a fixing nut. The baffle rod is in a U-shaped structure, and the two long sides of the U-shape are in an arc shape. Two ear plates are provided in the middle of the top of the baffle plate, and the pin is passed through the ear plate. The baffle plate is connected to a single hook with a straight handle and a lug through the ear plate and the pin. The lug of the single hook with a straight handle and a lug is provided with a reserved hole, and the pin passes through the reserved hole. The end of the pin is provided with a thread and a fixing nut is installed. The baffle rod is connected to the inner side of the baffle.
2. The anti-drop safety device of the single hook with lug and straight handle according to claim 1 is characterized in that: A through hole is provided at one end of the pin shaft with a thread. The through hole is outside the fixing nut, and a cotter pin is installed in the through hole.
3. The anti-drop safety device of the single hook with lug and straight handle according to claim 1 is characterized in that: The distance between the two long sides of the blocking rod is greater than the width of the single hook with a straight handle and lugs.
4. The anti-drop safety device of the single hook with lug and straight handle according to claim 1 is characterized in that: A circular arc groove is arranged at the bottom of the baffle, and the circular arc groove is adapted to the shape of the single hook with a straight handle and a lug.
5. The anti-drop safety device of the single hook with lug and straight handle according to claim 1 is characterized in that: The distance between the two ear plates matches the lug thickness of the straight shank single hook with lugs.