Round steel hoisting device for engineering construction
By installing sleeves and columns on the lifting device, vertical movement of the device is ensured. The use of quadrilateral hinges and clamp chucks solves the problem of inconvenient operation of existing lifting devices, achieving efficient and safe lifting of round steel at a low cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU XINXING DUCTILE IRON PIPES
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
Smart Images
Figure CN224530433U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engineering construction technology, and more specifically, it relates to a round steel hoisting device for engineering construction. Background Technology
[0002] Lifting tools are widely used in industrial production, construction, and other fields for hoisting various items. However, existing lifting tools have some shortcomings, such as complex structure, inconvenience of use, and limited load-bearing capacity. With the continuous advancement of industrialization, the performance requirements for lifting tools are also increasing, and existing lifting tools are struggling to meet practical needs in some aspects. For example, when lifting steel, the original lifting tool design required repeated lifting to ensure the hoisting device fell into the slot, severely impacting operation time and resulting in extremely low efficiency. This was particularly inconvenient when lifting round steel of different specifications.
[0003] Existing technology includes a technique entitled "A Special Lifting Tool for Round Steel Bars," with publication number CN102530714A. This technique relates to a special lifting tool for round steel bars, comprising slings, lifting rings, and supports. The slings are connected to the supports, which are equipped with lifting lugs. The key feature is that there are two lifting rings, an inner ring and an outer ring, which are movably connected to each other via a connector. There are also two slings, a left sling and a right sling, which are respectively connected to the inner and outer rings. The advantages of this invention are: simple structure, convenient operation, and good stability. This technique does not address the technical problems or solutions of this application. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a round steel hoisting device for engineering construction that is simple and quick to use, facilitates the smooth entry of the hoisting device into the hoisting device slot, ensures the smooth opening of the lifting device, greatly improves work efficiency, has a low failure rate, is safe and reliable, can be made from scrap steel, has low cost, and is easy to manufacture.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] This utility model is a round steel hoisting device for engineering construction. The upper crossbeam is equipped with a sleeve, the column moves through the sleeve, and the upper end of the column is equipped with a limiting end. The upper part of the quadrilateral hinge is connected to the upper crossbeam, and the lower part of the quadrilateral hinge is connected to the lower crossbeam. The quadrilateral hinge is also connected to the clamp chuck. The lower part of the upper crossbeam is equipped with a hoisting device, and the upper part of the lower crossbeam is equipped with a hoisting device groove.
[0007] The quadrilateral hinge includes a first hinge member, a second hinge member, a third hinge member, and a fourth hinge member, and the connecting clamp of the quadrilateral hinge includes a first clamp and a second clamp.
[0008] The upper ends of the first hinge member and the second hinge member are movably connected by a first pin, which is movably connected to the upper crossbeam. The lower end of the first hinge member is movably connected to the upper end of the third hinge member by a second pin, and the lower end of the second hinge member is movably connected to the upper end of the fourth hinge member by a third pin. The lower end of the third hinge member is connected to a first clamping head, and the lower end of the fourth hinge member is fixedly connected to a second clamping head.
[0009] The third member of the hinge is movably connected to the lower crossbeam via the fourth pin, and the fourth member of the hinge is movably connected to the lower crossbeam via the fifth pin.
[0010] Both the first clamp head and the second clamp head have a C-shaped structure, and the first clamp head and the second clamp head are arranged symmetrically.
[0011] The upper part of the upper crossbeam is connected to a lifting ring.
[0012] The upper crossbeam is equipped with two sets of quadrilateral hinges, and each set of quadrilateral hinges is equipped with a first clamp chuck and a second clamp chuck.
[0013] Multiple sleeves are provided on the upper crossbeam, and each column moves through a corresponding sleeve. The lower part of each column is connected to the lower crossbeam through a column base.
[0014] The first and second clamping heads of the quadrilateral hinge-connecting clamping heads form a circular clamping cavity.
[0015] The limiting end and the column are T-shaped.
[0016] The working principle and beneficial effects of this utility model are as follows:
[0017] The round steel hoisting device for engineering construction described in this utility model features a structure in which sleeves are added to the upper crossbeam. The sleeves are arranged symmetrically on both sides, and each sleeve moves through the corresponding column, ensuring that the upper crossbeam remains in a vertical up-and-down motion relative to the lower crossbeam during the lifting and lowering process. The hoist also moves precisely up and down, preventing the hoist from deviating. The sleeves ensure the verticality of the column, allowing it to move vertically up and down within the sleeves. The column is fixed to the lower crossbeam, ensuring a reliable structural arrangement. The round steel to be clamped is the component that needs to be clamped and hoisted by the hoisting device. The hoist is used in conjunction with the hoist slot. As the upper crossbeam moves down, the two clamping heads open. Only when the hoist is completely lowered into the hoist slot are the two clamping heads fully open. This utility model proposes an improvement on the existing technical structure. The key is to add a column and a sleeve. The column and sleeve are connected in a set to ensure that the upper beam and the lifting device move vertically up and down during use. This facilitates the lifting device to fall smoothly into the lifting device slot, allowing the two clamps to open smoothly and making it easy to clamp the round steel to be clamped. Attached Figure Description
[0018] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:
[0019] Figure 1 This is a schematic diagram of the structure of the round steel hoisting device for engineering construction described in this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the round steel hoisting device for engineering construction described in this utility model;
[0021] The labels in the attached diagram are as follows: 1. Column; 2. Sleeve; 3. Column base; 4. Round steel to be clamped; 5. Opening device; 6. Opening device slot; 7. Upper crossbeam; 8. Lower crossbeam; 9. Limiting end; 10. Clamping head; 11. First hinge member; 12. Second hinge member; 13. Third hinge member; 14. Fourth hinge member; 15. First pin; 16. Second pin; 17. Third pin; 18. First clamping head; 19. Second clamping head; 20. Fourth pin; 21. Fifth pin; 22. Lifting ring; 23. Clamping cavity. Detailed Implementation
[0022] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:
[0023] As attached Figure 1 Appendix Figure 2As shown, this utility model is a round steel hoisting device for engineering construction. The upper crossbeam 7 is equipped with a sleeve 2, and the column 1 moves through the sleeve 2. A limiting end 9 is provided at the upper end of the column 1. The upper part of a quadrilateral hinge connects to the upper crossbeam 7, and the lower part of the quadrilateral hinge connects to the lower crossbeam 8. The quadrilateral hinge also connects to a clamp chuck 10. A lifting and closing device 5 is provided at the lower part of the upper crossbeam 7, and a lifting and closing device groove 6 is provided at the upper part of the lower crossbeam 8. The above structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In the structural setup, sleeves 2 are added to the upper crossbeam 7. The sleeves 2 are arranged symmetrically on the left and right. Each sleeve 2 moves through the corresponding column 1, ensuring that the upper crossbeam 7 is always in a vertical up-and-down state relative to the lower crossbeam 8 during the lifting and lowering process. The opening and closing device 5 also moves up and down precisely to prevent the opening and closing device 5 from deviating. The setting of the sleeves 2 ensures that the column 1 is vertical, so that the column 1 moves vertically up and down within the sleeves 2. The column 1 is fixed on the lower crossbeam 8 to ensure the reliability of the structural arrangement. The round steel 4 to be clamped is a component that needs to be clamped and lifted by the hoisting device. The opening and closing device 5 is used in conjunction with the opening and closing device slot. As the opening and closing device 5 moves down with the upper crossbeam 7, the two clamping heads 10 open. Only when the opening and closing device 5 is completely lowered into the opening and closing device slot 6 can the two clamping heads 10 be fully opened. This utility model improves upon existing technology by adding a column 1 and a sleeve 2. The column 1 and sleeve 2 are fitted together, ensuring that the upper beam 7 and the lifting device 5 move vertically up and down during use. This facilitates the lifting device 5's smooth entry into the lifting device slot 6, allowing the two clamping heads 10 to open smoothly and grip the round steel 4 to be held. The round steel lifting device for engineering construction described in this utility model ensures ease and speed of use, facilitates the smooth entry of the lifting device into the slot, ensures smooth opening of the lifting device, significantly improves work efficiency, has a low failure rate, is safe and reliable, can be made using scrap steel, is low-cost, and easy to manufacture.
[0024] The quadrilateral hinge includes a first hinge member 11, a second hinge member 12, a third hinge member 13, and a fourth hinge member 14. The connecting clamp 10 of the quadrilateral hinge includes a first clamp 18 and a second clamp 19. The upper ends of the first hinge member 11 and the second hinge member 12 are movably connected by a first pin 15, which is movably connected to the upper crossbeam 7. The lower end of the first hinge member 11 is movably connected to the upper end of the third hinge member 13 by a second pin 16. The lower end of the second hinge member 12 is movably connected to the upper end of the fourth hinge member 14 by a third pin 17. The lower end of the third hinge member 13 is connected to the first clamp 18, and the lower end of the fourth hinge member 14 is fixedly connected to the second clamp 19. The third hinge member 13 is movably connected to the lower crossbeam 8 by a fourth pin 20, and the fourth hinge member 14 is movably connected to the lower crossbeam 8 by a fifth pin 21. In the above structure, the entire quadrilateral hinge assembly achieves reliable connection. During the descent of the lifting ring, the angles of the first hinge member 11, the second hinge member 12, the third hinge member 13, and the fourth hinge member 14 change, causing the quadrilateral hinge to deform and opening the first clamping head 18 and the second clamping head 19. During the ascent of the lifting ring, the angles of the first hinge member 11, the second hinge member 12, the third hinge member 13, and the fourth hinge member 14 change, causing the quadrilateral hinge to deform and closing the first clamping head 18 and the second clamping head 19, achieving reliable clamping of the round steel bar 4 to be held.
[0025] The first clamp 18 and the second clamp 19 are both C-shaped structures, and are arranged symmetrically. In this structure, the two first clamps 18 and the two clamps 19 form a group, clamping corresponding parts of the round steel.
[0026] The upper crossbeam 7 is connected to a lifting ring 22. Two sets of quadrilateral hinges are installed on the upper crossbeam 7, each set of which is equipped with a first clamp 18 and a second clamp 19. Multiple sleeves 2 are installed on the upper crossbeam 7, and each column 1 moves through a corresponding sleeve 2. The lower part of each column 1 is connected to the lower crossbeam 8 via a column base 3. In this structure, four triangular reinforcing plates are welded to the column base to fix the column in place.
[0027] The first clamp 18 and the second clamp 19 of the quadrilateral hinge connecting clamp 10 form a circular clamping cavity 23.
[0028] The limiting end 9 and the column 1 have a T-shaped structure. In the above structure, the limiting end 9 and the upper end of the column 1 are an integral structure, which is used for limiting and preventing the column 1 from falling off the sleeve 2.
[0029] The round steel hoisting device for engineering construction described in this utility model has the following structural design: a sleeve 2 is added to the upper crossbeam 7. The sleeves 2 are arranged symmetrically from left to right. Each sleeve 2 moves through the corresponding column 1, ensuring that the upper crossbeam 7 is always in a vertical up-and-down state relative to the lower crossbeam 8 during the lifting and lowering process. The hoist 5 also moves up and down precisely to prevent the hoist 5 from deviating. The sleeve 2 ensures that the column 1 is vertical, allowing the column 1 to move vertically up and down within the sleeve 2. The column 1 is fixed to the lower crossbeam 8 to ensure a reliable structural arrangement. The round steel 4 to be clamped is the component that needs to be clamped and hoisted by the hoisting device. The hoist 5 is used in conjunction with the hoist slot. As the upper crossbeam 7 moves down, the two clamping heads 10 open. Only when the hoist 5 is completely lowered into the hoist slot 6 can the two clamping heads 10 be fully opened. This utility model proposes an improvement on the existing technical structure. The key is to add a column 1 and a sleeve 2. The column 1 and the sleeve 2 are connected in a set to ensure that the upper beam 7 and the lifting device 5 move vertically up and down during use. This makes it easy for the lifting device 5 to fall smoothly into the lifting device slot 6, so that the two clamping heads 10 can be opened smoothly to clamp the round steel 4 to be clamped.
[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A round steel hoisting device for engineering construction, characterized in that: A sleeve (2) is provided on the upper crossbeam (7), and the column (1) moves through the sleeve (2). A limiting end (9) is provided on the upper end of the column (1). The upper part of the quadrilateral hinge is connected to the upper crossbeam (7), and the lower part of the quadrilateral hinge is connected to the lower crossbeam (8). The quadrilateral hinge is also connected to the clamp chuck (10). A starter (5) is provided on the lower part of the upper crossbeam (7), and a starter groove (6) is provided on the upper part of the lower crossbeam (8).
2. The round steel hoisting device for engineering construction according to claim 1, characterized in that: The quadrilateral hinge includes a first hinge member (11), a second hinge member (12), a third hinge member (13), and a fourth hinge member (14). The connecting clamp head (10) of the quadrilateral hinge includes a first clamp head (18) and a second clamp head (19).
3. The round steel hoisting device for engineering construction according to claim 2, characterized in that: The upper end of the first hinge member (11) and the upper end of the second hinge member (12) are movably connected by the first pin (15). The first pin (15) is movably connected to the upper beam (7). The lower end of the first hinge member (11) is movably connected to the upper end of the third hinge member (13) by the second pin (16). The lower end of the second hinge member (12) is movably connected to the upper end of the fourth hinge member (14) by the third pin (17). The lower end of the third hinge member (13) is connected to the first clamp chuck (18). The lower end of the fourth hinge member (14) is fixedly connected to the second clamp chuck (19).
4. The round steel hoisting device for engineering construction according to claim 3, characterized in that: The third link (13) of the hinge is movably connected to the lower crossbeam (8) through the fourth pin (20), and the fourth link (14) of the hinge is movably connected to the lower crossbeam (8) through the fifth pin (21).
5. The round steel hoisting device for engineering construction according to claim 3, characterized in that: The first clamp head (18) and the second clamp head (19) are both C-shaped structures, and the first clamp head (18) and the second clamp head (19) are arranged symmetrically.
6. The round steel hoisting device for engineering construction according to claim 1 or 2, characterized in that: The upper part of the upper crossbeam (7) is connected to the lifting ring (22).
7. The round steel hoisting device for engineering construction according to claim 3, characterized in that: Two sets of quadrilateral hinges are provided on the upper crossbeam (7), and each set of quadrilateral hinges is provided with a first clamp chuck (18) and a second clamp chuck (19).
8. The round steel hoisting device for engineering construction according to claim 1 or 2, characterized in that: Multiple sleeves (2) are provided on the upper crossbeam (7), and each column (1) moves through a corresponding sleeve (2). The lower part of each column (1) is connected to the lower crossbeam (8) through the column base (3).
9. The round steel hoisting device for engineering construction according to claim 3, characterized in that: The first clamping head (18) and the second clamping head (19) of the quadrilateral hinge connecting clamping head (10) form a circular clamping cavity (23).
10. The round steel hoisting device for engineering construction according to claim 1 or 2, characterized in that: The limiting end (9) and the column (1) are T-shaped.