Labor-saving hook for carrying construction materials
By designing a labor-saving hook for transporting construction materials with automatic unloading and folding functions, the problems of high labor intensity and large space occupation in traditional construction material handling have been solved, achieving efficient and safe handling of construction materials and tool management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional methods of transporting construction materials are labor-intensive and inefficient. Existing hooks are inconvenient for automatic unloading and take up a lot of space, making it difficult to meet the needs of high-intensity construction.
A labor-saving hook for handling construction materials was designed, comprising a first hook, a second hook, a counterweight, and a limiting cylinder. It achieves automatic unloading and folding storage through threaded connection and gravity, reducing manual operation and saving storage space.
It enables stable handling and efficient unloading of construction materials, reduces labor intensity, improves construction efficiency, saves storage space, and enhances the efficiency of tool management on the construction site.
Smart Images
Figure CN224118600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hook technology, and in particular to a labor-saving hook for handling construction materials. Background Technology
[0002] In the field of modern building construction and engineering, the efficient handling of construction materials is a key link in ensuring project progress and reducing costs. Traditional material handling methods, such as manual carrying and dragging, are not only extremely labor-intensive, easily leading to worker fatigue and occupational diseases such as muscle strain and lumbar spine injury, but also have low handling efficiency, making it difficult to meet the needs of large-scale, high-intensity construction.
[0003] Existing hooks for transporting construction materials are labor-saving, but they are inconvenient for automatic unloading and require manual removal, which increases the difficulty and labor intensity of workers. They are also difficult to store. Traditional hooks have a fixed structure, take up a lot of space, and are not convenient for the storage and management of tools on the construction site. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a labor-saving hook for handling construction materials.
[0005] This utility model is achieved by the following technical solution: a labor-saving hook for transporting construction materials, including a connecting plate, a first receiving groove and a second receiving groove inside the connecting plate, a rotating device and a fixing device inside the connecting plate.
[0006] The rotating device includes a first hook, a second hook fixedly connected to the right side of the first hook, a limiting cylinder threadedly connected to the surface of the second hook, a connecting rod threadedly connected to the top of the first hook, and a counterweight fixedly connected to the top of the connecting rod.
[0007] Through the above technical solution, the limiting cylinder is connected to the surface of the second hook by a thread. Rotating upwards can close the opening of the second hook, forming a reliable anti-drop structure, which effectively prevents the material from slipping during transportation. The counterweight works with the connecting rod to maintain stability by gravity when the first hook lifts the goods. After the goods land, the center of gravity shifts and rotates to the left, causing the first hook to detach from the goods, thus realizing contactless automatic unloading.
[0008] As a further improvement to the above solution, the first receiving groove is located on top of the second receiving groove, and the top of the first hook is provided with a threaded hole.
[0009] Through the above technical solution, the first receiving groove is used to accommodate the rotating ring and provide space for the rotation of the rotating ring, and the second receiving groove accommodates the first hook and the second hook and provides space for the rotation of the first hook and the second hook.
[0010] As a further improvement to the above solution, the first hook is located inside the second receiving groove, and the first hook is rotatably connected to the inside of the connecting plate.
[0011] Through the above technical solution, a limiting block is fixed to the inner wall of the second receiving tank to prevent the counterweight from rotating to the right.
[0012] As a further improvement to the above solution, the fixing device includes a rotating ring, a fixed ring is fixedly connected to the top of the rotating ring, a bolt is threaded inside the fixed ring, and a nut is threaded on the surface of the bolt.
[0013] As a further improvement to the above solution, the rotating ring is located inside the first receiving groove, and the rotating ring is rotatably connected to the inside of the connecting plate.
[0014] As a further improvement to the above solution, the rotating ring is located at the top of the first hook.
[0015] As a further improvement to the above solution, two fixing rings are provided, and one end of each fixing ring has a threaded groove.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model, by setting up a first hook, a second hook, a counterweight, and a limiting cylinder, allows for the selection of either the first or second hook during operation and adjustment to a suitable angle. The second hook, in conjunction with the limiting cylinder, seals the opening, eliminating the risk of material slippage from the source. During unloading, the pre-assembled counterweight is linked to the first hook, maintaining stability during hoisting. After the goods land, the counterweight automatically shifts, causing the first hook to detach, allowing unloading to be completed without manual contact. This reduces labor intensity, avoids the safety hazards of manual disassembly, significantly improves construction efficiency, and provides a reliable solution for material handling on construction sites.
[0018] This invention, by setting up a first and a second receiving slot, allows operators to easily rotate the first hook into the second receiving slot while simultaneously rotating the rotating ring into the first receiving slot. The entire hook then folds into a compact shape, significantly saving storage space. In the space-constrained environment of construction sites, this design prevents hooks from occupying too much valuable space, making material storage and tool storage areas more organized and orderly. Furthermore, when the hook is needed for the next construction phase, its convenient folding and storage allows workers to quickly retrieve and unfold it from the receiving slot. Compared to traditional, complex storage methods, this significantly shortens retrieval time, improves work efficiency, and facilitates smoother and more efficient tool flow on construction sites, effectively ensuring construction progress. Attached Figure Description
[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the first receiving groove structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the rotating device structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the fixing device structure of this utility model;
[0023] Figure 5 This utility model Figure 1 Schematic diagram of cross-section structure.
[0024] Explanation of key symbols:
[0025] 1. Connecting plate; 2. First receiving groove; 3. Second receiving groove; 4. Rotating device; 401. First hook; 402. Second hook; 403. Limiting cylinder; 404. Connecting rod; 405. Counterweight; 5. Fixing device; 501. Rotating ring; 502. Fixing ring; 503. Bolt; 504. Nut. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] Example:
[0028] Please combine Figure 1-5 The construction material handling hook of this embodiment includes a connecting plate 1, a first receiving groove 2 and a second receiving groove 3 inside the connecting plate 1, a rotating device 4 and a fixing device 5 inside the connecting plate 1.
[0029] The rotating device 4 includes a first hook 401, a second hook 402 fixedly connected to the right side of the first hook 401, a limiting cylinder 403 threadedly connected to the surface of the second hook 402, and a connecting rod 404 threadedly connected to the top of the first hook 401. A counterweight 405 is fixedly connected to the top of the connecting rod 404. Materials are hung on either the first hook 401 or the second hook 402 and rotated to the optimal force angle. If the second hook 402 is selected to carry the material, the limiting cylinder 403 at its bottom must be rotated to smoothly move it upwards along the threaded track to the top, closing the opening of the second hook 402 and forming a reliable anti-drop structure, effectively preventing materials from slipping during transport.
[0030] To achieve automatic detachment of the first hook 401, the connecting rod 404 at the bottom of the counterweight 405 must be screwed into the threaded hole at the top of the first hook 401 before assembly. When the first hook 401 lifts the goods, the counterweight 405 remains stable at the top due to gravity. Once the goods land smoothly, the counterweight 405 rotates to the left due to the shift in its center of gravity, causing the first hook 401 to detach from the goods, achieving contactless automatic unloading. This eliminates the need for manual contact, reduces labor intensity, avoids the safety hazards of manual disassembly, significantly improves construction efficiency, and provides a reliable solution for material handling on construction sites.
[0031] The first receiving groove 2 is located on top of the second receiving groove 3, and the top of the first hook 401 is provided with a threaded hole.
[0032] The first hook 401 is located inside the second receiving slot 3, and the first hook 401 is rotatably connected to the inside of the connecting plate 1.
[0033] The fixing device 5 includes a rotating ring 501, with a fixing ring 502 fixedly connected to the top of the rotating ring 501. A bolt 503 is threadedly connected to the inside of the fixing ring 502, and a nut 504 is threadedly connected to the surface of the bolt 503. When using this construction material to move the labor-saving hook, first connect the rope or connecting ring and embed it in the middle. Then, screw the bolt 503 into the pre-set thread grooves of the two fixing rings 502 in sequence, and then tighten the nut 504 along the bolt 503. The installation of the rotating ring 501 is achieved through the tight fit between the bolt 503 and the nut 504.
[0034] The rotating ring 501 is located inside the first receiving groove 2, and the rotating ring 501 is rotatably connected to the inside of the connecting plate 1.
[0035] The rotating ring 501 is located at the top of the first hook 401.
[0036] There are two retaining rings 502, and one end of the retaining ring 502 has a threaded groove.
[0037] The implementation principle of a construction material handling effort-saving hook in this application embodiment is as follows: When using the construction material handling effort-saving hook, first connect the rope or connecting ring and embed it in the middle, then screw the bolt 503 into the preset thread groove of the two fixing rings 502 in sequence, and then tighten the nut 504 along the bolt 503. Through the tight cooperation between the bolt 503 and the nut 504, the installation of the rotating ring 501 is realized.
[0038] During the material handling stage, depending on whether automatic unloading or preventing material slippage is required, materials can be flexibly hung on the first hook 401 or the second hook 402, and rotated to the optimal force-bearing angle. If the second hook 402 is selected to carry the material, the limiting cylinder 403 at its bottom needs to be rotated to move it smoothly upwards along the threaded track to the top, closing the opening of the second hook 402 and forming a reliable anti-slip structure, effectively preventing materials from slipping during transportation.
[0039] To achieve automatic detachment of the first hook 401, the connecting rod 404 at the bottom of the counterweight 405 must be screwed into the threaded hole at the top of the first hook 401 before assembly. When the first hook 401 lifts the goods, the counterweight 405 remains stable at the top due to gravity. Once the goods land smoothly, the counterweight 405 rotates to the left due to the shift in its center of gravity, causing the first hook 401 to detach from the goods, achieving contactless automatic unloading. This eliminates the need for manual contact, reduces labor intensity, avoids the safety hazards of manual disassembly, significantly improves construction efficiency, and provides a reliable solution for material handling on construction sites.
[0040] In the storage phase, simply rotate the first hook 401 and the rotating ring 501 into the second receiving slot 3 and the first receiving slot 2 respectively, and the entire hook folds into a compact shape, greatly saving storage space. In the space-constrained environment of a construction site, this prevents hooks from occupying too much valuable space, making material stacking areas and tool storage areas more organized and orderly. Moreover, when the hook needs to be retrieved for the next construction work, its convenient folding and storage allows workers to quickly take it out of the receiving slot and unfold it. Compared to tools with traditional, complex storage methods, this significantly shortens retrieval time, improves work efficiency, and makes the flow of tools on the construction site smoother and more efficient, effectively ensuring the construction progress.
[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A labor-saving hook for handling construction materials, characterized in that, Includes a connecting plate (1), the connecting plate (1) has a first receiving groove (2) inside, the connecting plate (1) has a second receiving groove (3) inside, the connecting plate (1) has a rotating device (4) inside, and the connecting plate (1) has a fixing device (5) inside. The rotating device (4) includes a first hook (401), a second hook (402) is fixedly connected to the right side of the first hook (401), a limiting cylinder (403) is threadedly connected to the surface of the second hook (402), a connecting rod (404) is threadedly connected to the top of the first hook (401), and a counterweight (405) is fixedly connected to the top of the connecting rod (404).
2. The labor-saving hook for handling construction materials as described in claim 1, characterized in that: The first receiving groove (2) is located on top of the second receiving groove (3), and the top of the first hook (401) is provided with a threaded hole.
3. The labor-saving hook for handling construction materials as described in claim 1, characterized in that: The first hook (401) is located inside the second receiving slot (3), and the first hook (401) is rotatably connected to the inside of the connecting plate (1).
4. The labor-saving hook for handling construction materials as described in claim 1, characterized in that: The fixing device (5) includes a rotating ring (501), a fixing ring (502) is fixedly connected to the top of the rotating ring (501), a bolt (503) is threaded inside the fixing ring (502), and a nut (504) is threaded on the surface of the bolt (503).
5. The labor-saving hook for handling construction materials as described in claim 4, characterized in that: The rotating ring (501) is located inside the first receiving groove (2), and the rotating ring (501) is rotatably connected to the inside of the connecting plate (1).
6. The labor-saving hook for handling construction materials as described in claim 4, characterized in that: The rotating ring (501) is located on top of the first hook (401).
7. The labor-saving hook for handling construction materials as described in claim 4, characterized in that: The number of the fixing rings (502) is two, and one end of the fixing rings (502) is provided with a threaded groove.