Lifting hook device for quick detachment

Abstract

The utility model relates to a lifting hook device for quick detachment, which comprises a U-shaped lifting ring, a lifting hook, a pin shaft, an anti-unhooking limiting plate and a spring, the U-shaped lifting ring, the lifting hook and the anti-unhooking limiting plate all penetrate through the pin shaft and can rotate around the pin shaft, and the lifting hook and the anti-unhooking limiting plate are arranged between two ends of the U-shaped lifting ring; the spring is arranged between the lower part of the mousing-hook limiting plate and the lifting hook, and enables the mousing-hook limiting plate to seal the opening of the hook end of the lifting hook; a hook unloading rope limiting plate is further arranged above the lifting hook, and a hook unloading rope penetrates through a first hole in the hook unloading rope limiting plate to be connected with the upper portion of the anti-unhooking hook limiting plate. According to the device, unhooking is effectively prevented in the hoisting process; and after hoisting is completed, a user can quickly detach the lifting hook by operating on the ground. By using the device, on one hand, the hoisting installation efficiency can be remarkably improved, on the other hand, potential safety hazards caused by high-altitude operation of a user are avoided, and the safety and management risks of high-altitude operation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a hook device for quick detachment. Background Art

[0002] With the rapid development of the construction industry, the traditional cast-in-place construction method has been unable to meet the needs of the current society due to its slow construction speed, long construction period, and high material waste. Prefabricated buildings can solve the above problems well, meet the needs of the national dual-carbon strategy, and are in line with the direction of the transformation of building industrialization.

[0003] Prefabricated buildings are specifically made by prefabricating the components of a house in a factory, and then transporting the prefabricated components to the site for assembly and construction. During the above production, transportation, installation and construction processes, the prefabricated components need to be hoisted. After the prefabricated components are hoisted in place, the hoisting user needs to climb to the location where the components are installed to remove the hooks. The manual hook removal process affects the hoisting work efficiency on the one hand, and there are considerable safety hazards on the other hand, especially when hoisting large, overweight prefabricated components or high-rise buildings such as factory buildings, which will further generate safety and management risks for high-altitude operations.

[0004] Therefore, the existing technology needs to be improved, and it is of practical significance to develop a hook device for quickly disassembling prefabricated components that is easy to use and safe. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a hook device for quick detachment, especially for quick detachment of prefabricated components. After the prefabricated components are hoisted, the user can complete the detachment of the hook on the ground through a connecting rope without the need for the user to climb up to operate. This overcomes the problems of the prior art of manual removal of the hook that affects the hoisting work efficiency and poses safety hazards.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A hook device for quick detachment comprises a U-shaped lifting ring, a lifting hook, a pin shaft, an anti-detachment limit plate and a spring, wherein the U-shaped lifting ring, the lifting hook and the anti-detachment limit plate all pass through the pin shaft and are rotatably arranged around the pin shaft, and the lifting hook and the anti-detachment limit plate are placed between the two ends of the U-shaped lifting ring; the spring is arranged between the lower part of the anti-detachment limit plate and the lifting hook, and in a natural state, the spring makes the anti-detachment limit plate close the hook end opening of the lifting hook; a hook-removing rope limit plate is also arranged above the lifting hook, and a first opening is opened at the upper end of the hook-removing rope limit plate; when working, the hook-removing rope is passed through the first opening and connected to the upper part of the anti-detachment limit plate; when the hook-removing rope is pulled, the anti-detachment limit plate compresses the spring to open the opening of the lifting hook, and the hook-removing rope is continuously pulled so that the hook-removing rope limit plate contacts the anti-detachment limit plate and can drive the lifting hook to rotate around the pin shaft to realize the hook-removing action.

[0010] As described above, the hook device is preferably configured such that the lower portion of the hook is in the shape of a barb, the end of the barb is provided with a circular ring for the pin to pass through, the hook end of the barb is open, and a limit plate for the hook removal rope is fixedly provided above the circular ring of the hook.

[0011] As described above, the hook device, preferably, the upper end of the U-shaped lifting ring is set to be U-shaped, and the two lower ends of the U-shape are provided with circular rings for the pin shaft to pass through. Furthermore, the U-shaped lifting ring can also be replaced by a horseshoe-shaped lifting ring, a semicircular lifting ring or a Π-shaped lifting ring.

[0012] As described above, in the hook device, preferably, both ends of the pin shaft are provided with washers and nuts.

[0013] In the hook device as described above, preferably, the lower end of the hook-removing rope limiting plate is fixedly connected to the hook, and the upper end of the hook-removing rope limiting plate may also be provided with a second opening or multiple openings for connecting a counterweight, so as to increase the counterweight. Further preferably, the second opening on the hook-removing rope limiting plate is located forward of the first opening.

[0014] Furthermore, the hook-removing rope limiting plate is fixed on the circular ring through which the hook passes through the pin shaft, and is arranged toward the opening of the hook. The straight line where the hook-removing rope limiting plate is located is arranged at 120 to 180 degrees with the straight line where the hook neck of the hook is located.

[0015] As described above, the hook device is preferably configured such that the middle of the anti-unhooking limit plate is configured as an annular open loop for the pin shaft to pass through; both ends of the anti-unhooking limit plate are configured as a "7" shape, and when the hook-unhooking rope is pulled, the upper end of the "7" shape can be connected to the hook-unhooking rope limit plate.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a hook device for quick detachment, which effectively prevents the hook from being detached during the hoisting process; after the hoisting is completed, the user can quickly remove the hook by operating on the ground. The use of this device is convenient to operate and has low cost. On the one hand, it can significantly improve the efficiency of hoisting and installation, and on the other hand, it avoids the safety hazards caused by the user working at height, and avoids the safety and management risks of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a quick-release hook preferably provided by the utility model;

[0020] Figure 2 For this utility model Figure 1 The structural diagram of the hook in FIG.

[0021] Figure 3 For this utility model Figure 1 The structural diagram of the U-shaped lifting ring;

[0022] Figure 4 For this utility model Figure 1 A schematic diagram of the structure of the pin shaft;

[0023] Figure 5 For this utility model Figure 1 Schematic diagram of the structure of the middle anti-unhooking limit plate.

[0024] [Description of Reference Numerals]

[0025] 1: U-shaped lifting ring;

[0026] 2: hook;

[0027] 3: Pin;

[0028] 4: Anti-unhooking limit plate;

[0029] 5: Remove the hook rope;

[0030] 6: Connecting spring;

[0031] 31: gasket;

[0032] 32: Nut;

[0033] 21: Limiting plate;

[0034] 211: first circular hole;

[0035] 212: The second circular hole. DETAILED DESCRIPTION

[0036] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation is used as a reference.

[0037] The utility model provides a hook device for quick detachment. By modifying the currently commonly used hook and adding corresponding mechanisms, after the prefabricated component is hoisted, the user can complete the detachment of the hook on the ground through a connecting rope without the need for the user to climb up. This overcomes the problems of the prior art of manually removing the hook, which affects the hoisting work efficiency and poses safety hazards.

[0038] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] Example 1

[0040] A quick-release hook device for hoisting prefabricated components, comprising a hook body, such as Figure 1As shown, the hook body includes an upper U-shaped lifting ring 1, a lower hook 2, a pin 3, an anti-unhooking limit plate 4, a hook removal rope 5, and a connecting spring 6, wherein the U-shaped lifting ring 1, the lower hook 2 and the anti-unhooking limit plate 4 are connected by the pin 3 and can rotate around the pin 3, and the hook is placed between the two ends of the U-shaped lifting ring; a spring 6 is provided between the lower part of the anti-unhooking limit plate 4 and the hook 2, and in a natural state, the spring 6 contacts the lower part of the anti-unhooking limit plate 4 with the hook 2, and the anti-unhooking limit plate 4 closes the upper hook end opening of the hook 2 to prevent unhooking during the lifting process. Specifically, one end of the spring 6 is fixedly connected to the lower part of the anti-unhooking limit plate 4, and the other end is fixedly connected to the inside of the hook of the hook 2. The anti-unhooking limit plate 4 closes the opening of the hook 2 through the tension of the spring 6. When acting on the upper part of the anti-unhooking limit plate 4, the anti-unhooking limit plate 4 rotates around the pin shaft 3, compressing the spring 6, and the lower part of the anti-unhooking limit plate 4 rotates toward the opening of the hook 2, opening the opening of the hook 2, and facilitating the removal of the object hung on the hook. In order to facilitate the action on the anti-unhooking limit plate, a hook removal rope limit plate is also provided above the hook, and a first opening is provided at the upper end of the hook removal rope limit plate; when in use, the hook removal rope is passed through the first opening and connected to the upper part of the anti-unhooking limit plate; when the hook removal rope is pulled, the anti-unhooking limit plate compresses the spring to open the opening of the hook, and the hook removal rope is continuously pulled, and the hook removal rope limit plate contacts the anti-unhooking limit plate and can drive the hook to rotate around the pin shaft to realize the unhooking action of the object on the hook.

[0041] like Figure 2 As shown, the lower part of the hook 2 is in the shape of a barb, and the end of the barb is provided with a circular ring for the pin to pass through, and the hook end of the barb is open. A hook-unloading rope limiting plate 21 is fixedly provided above the circular ring of the hook 2. The setting angle of the hook-unloading rope limiting plate 21 on the circular ring is preferably such that the hook-unloading rope limiting plate 21 faces the opening of the hook 2 and the straight line where the hook-unloading rope limiting plate is located is 120 to 180 degrees with the straight line where the hook neck of the hook 2 is located. The lower end of the hook-unloading rope limiting plate 21 is fixedly connected to the hook 2, and the upper end is provided with a first circular hole 211. The hook-unloading rope 5 passes through the first circular hole 211 on the hook-unloading rope limiting plate 21 and is connected to the upper part of the anti-unhooking limiting plate 4. The upper end of the hook-unloading rope limiting plate 21 is also provided with a second circular hole 212, which can be used as a connection hole for adding a counterweight after fixing, and the deadweight of the hook is balanced by adding a counterweight. The upper end of the unhooking rope limiting plate 21 can also be provided with a plurality of circular holes for adding a connecting hole for a counterweight. The second circular hole 212 is in front and the first circular hole 211 is in the back, which is convenient for operation and will not cause the unhooking rope to cross with the rope connected to the counterweight.

[0042] Furthermore, if Figure 3As shown, the upper end of the U-shaped lifting ring is set to be U-shaped, and the two lower ends of the U-shaped ring are both provided with a ring for the pin to pass through. The U-shaped lifting ring can also be replaced with a horseshoe-shaped lifting ring or other shaped lifting rings such as a semicircular arc, a Π shape, etc. When in use, the U-shaped lifting ring is pulled up so that the U-shaped lifting ring 1 is placed above the hook 2 as shown in FIG. Figure 1 as shown in .

[0043] like Figure 4 As shown, both ends of the pin shaft 3 are provided with a washer 31 and a nut 32 for fixing and limiting. The nut 32 fixes the washer 31 on the pin shaft 3 to prevent the U-shaped lifting ring from sliding off.

[0044] like Figure 5 As shown, the middle of the anti-unhooking limit plate 4 is set as an annular open ring for the pin shaft to pass through, and both ends of the anti-unhooking limit plate 4 are set as "7" shapes, one end is a positive "7" shape, and the other end is an inverted "7" shape. The length of the upper end of the "7" shape can be clamped to the unhooking rope limit plate. It can better block the opening of the hook, and it is also convenient to connect the unhooking rope, effectively preventing the unhooking rope from falling off.

[0045] When the utility model is working, the unhooking rope 5 is first passed through the first circular hole 211 on the limit plate 21 and then connected to the upper part of the anti-unhooking limit plate 4. For example, when used for lifting prefabricated components, the upper U-shaped lifting ring 1 is connected to the lifting machine hook, and the unhooking rope 5 is pulled to open the anti-unhooking limit plate at the opening of the hook 2, and the prefabricated component lifting ring is connected to the hook 2; the unhooking rope 5 is loosened, and the anti-unhooking limit plate 4 closes the hook opening through the elastic force of the spring 6 to prevent unhooking during the lifting process.

[0046] After the prefabricated component is hoisted into place, the user pulls the hook-removing rope 5 on the ground, first causing the anti-unhooking limit plate 4 to rotate around the pin shaft 3 to open the hook opening, and the anti-unhooking limit plate 4 continues to rotate around the pin shaft 3 and contacts the upper hook-removing rope limit plate 21 of the hook 2. At this time, the hook-removing rope 5 is continued to be pulled to make the hook 2 start to rotate around the pin shaft 3, thereby completing the unhooking action of the hook 2, thereby achieving the purpose of the user quickly removing the hook on the ground.

[0047] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "connect", "fix", "install", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0050] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradicting each other.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hook device for quick release, characterized in that: The invention relates to a U-shaped lifting ring, a lifting hook, a pin shaft, an anti-unhooking limit plate and a spring, wherein the U-shaped lifting ring, the lifting hook and the anti-unhooking limit plate all pass through the pin shaft and are rotatably arranged around the pin shaft, and the lifting hook and the anti-unhooking limit plate are placed between the two ends of the U-shaped lifting ring; the spring is arranged between the lower part of the anti-unhooking limit plate and the lifting hook, and in a natural state, the spring enables the anti-unhooking limit plate to close the hook end opening of the lifting hook; a hook-removing rope limit plate is also arranged above the lifting hook, and a first opening is arranged at the upper end of the hook-removing rope limit plate; when working, the hook-removing rope is passed through the first opening and connected to the upper part of the anti-unhooking limit plate; when the hook-removing rope is pulled, the anti-unhooking limit plate compresses the spring to open the opening of the lifting hook, and the hook-removing rope is continuously pulled so that the hook-removing rope limit plate contacts the anti-unhooking limit plate and can drive the lifting hook to rotate around the pin shaft to realize the unhooking action of the lifting hook.

2. The hook device according to claim 1, characterized in that: The lower part of the hook is in the shape of a barb, the end of the barb is provided with a circular ring for the pin shaft to pass through, the hook end of the barb is open, and a limit plate for the hook unloading rope is fixedly provided above the circular ring of the hook.

3. The hook device according to claim 1, characterized in that: The upper end of the U-shaped lifting ring is set to be U-shaped, and two lower ends of the U-shaped lifting ring are provided with circular rings for the pin shaft to pass through.

4. The hook device according to claim 1, characterized in that: The U-shaped lifting ring can be replaced by a horseshoe-shaped lifting ring, a semicircular lifting ring or a Π-shaped lifting ring.

5. The hook device according to claim 1, characterized in that: Both ends of the pin shaft are provided with washers and nuts.

6. The hook device according to claim 1, characterized in that: The lower end of the hook-removing rope limiting plate is fixedly connected to the hook, and the upper end of the hook-removing rope limiting plate is also provided with a second opening or multiple openings for connecting a counterweight.

7. The hook device according to claim 1, characterized in that: The hook-removing rope limiting plate is fixed on the ring through which the hook passes the pin shaft, and is arranged toward the hook opening. The straight line where the hook-removing rope limiting plate is located is arranged at 120 to 180 degrees with the straight line where the hook neck of the hook is located.

8. The hook device according to any one of claims 1 to 7, characterized in that: The middle of the anti-unhooking limit plate is set as an annular open ring for the pin shaft to pass through; both ends of the anti-unhooking limit plate are set as "7" shapes. When the hook-unloading rope is pulled, the upper end of the "7" shape can be clamped to the hook-unloading rope limit plate.

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