Sleeve for mounting foundation bolt and nut of steel structure
By designing multi-specification steel structure anchor bolt and nut installation sleeves, and utilizing a combination of connecting rings, threaded rods, and suction cups, the problem that existing sleeves can only install one type of nut has been solved, enabling convenient installation and efficient use of multi-specification bolts and nuts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINGHONG STEEL STRUCTURE CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-21
AI Technical Summary
Existing steel structure anchor bolt and nut installation sleeves are only suitable for one type of nut, which limits their application range and makes changing to different nut sizes cumbersome and inefficient.
Design a sleeve for installing anchor bolts and nuts on steel structures, comprising a connecting column, a connecting cylinder, and a sleeve. The inner wall of the sleeve is provided with installation grooves of different sizes. Multiple specifications of bolts and nuts can be installed through a connecting ring, a threaded rod, and a suction cup. The suction cup is attached to the bolt surface for positioning, facilitating the rotation of the sleeve.
It enables convenient installation of bolts and nuts of various specifications without the need for temporary disassembly, improving efficiency and applicability, and is easy to operate.
Smart Images

Figure CN224144499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure installation technology, specifically to a sleeve for installing anchor bolts and nuts on steel structures. Background Technology
[0002] Anchor bolts and nuts for steel structures refer to bolt and nut assemblies used to fix steel structure equipment or components. Anchor bolts are usually embedded in concrete foundations to provide fixation and support, while nuts are used to tighten the anchor bolts, ensuring the stability of the equipment or components.
[0003] Existing sleeves used for installing anchor bolts and nuts in steel structures have a fixed length, limiting their applicability to only one type of nut. This restricts their use and reduces utilization. A patented sleeve for installing anchor bolts and nuts in steel structures (patent publication number CN202023323000.5) addresses this issue. It features a first tube inside the sleeve, with a knob and screw fixing the relative position of the sleeve and the first tube. This allows the device to accommodate anchor bolts of different lengths. Pulling a fourth plate moves a second rod, which in turn moves a third plate and a third rod, disengaging the third rod from the first groove. This allows for the replacement of different sizes of the second tube and nut sleeve, making the device suitable for various anchor nut sizes and thus expanding its applicability and increasing its utilization.
[0004] Although the above-mentioned utility model expands the scope of application and improves the utilization rate, it can still only install one type of cylinder at a time. When different nuts need to be installed, the existing cylinder needs to be disassembled and then other types of cylinders need to be installed, which is cumbersome and time-consuming, affecting efficiency.
[0005] Therefore, we have made improvements and proposed a sleeve for installing anchor bolts and nuts on steel structures. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] This utility model discloses a sleeve for installing anchor bolts and nuts on steel structures, comprising a connecting column, a plurality of connecting cylinders 1 uniformly fixed circumferentially on the surface of the connecting column, a connecting cylinder 2 installed at the end of the connecting cylinder 1 away from the connecting column; a sleeve is fixedly provided at the end of the connecting cylinder 2 away from the connecting cylinder 1, and the inner walls of the plurality of sleeves are provided with mounting grooves that mate with nuts, and the size of the mounting grooves on each sleeve is different; a connecting ring is rotatably fitted on the surface of the connecting cylinder 2, and mounting blocks extend from both ends of the connecting ring, a threaded rod is threadedly connected to the mounting block, a connecting piece is rotatably provided at the bottom end of the threaded rod, and a suction cup is engaged at the bottom end of the connecting piece, and a guide rod is provided between the connecting piece and the mounting block.
[0008] As a preferred technical solution of this utility model, a plurality of limiting holes are evenly provided on one side of the connecting cylinder one and the connecting cylinder two. The limiting holes penetrate both sides of the connecting cylinder two, and the limiting holes penetrate one side of the connecting cylinder one and extend to the inner wall of the other side.
[0009] As a preferred embodiment of this utility model, the second connecting cylinder is snapped into the inside of the first connecting cylinder, and the first connecting cylinder and the second connecting cylinder are fixed by limiting bolts, and the limiting bolts are installed in limiting holes, and the number of limiting bolts is less than the number of limiting holes.
[0010] As a preferred embodiment of this utility model, the bottom end of the connector is provided with a slot, and the top surface of the suction cup is fixedly provided with a locking block, which is engaged in the slot.
[0011] As a preferred technical solution of this utility model, a guide hole is provided through the mounting block, the bottom end of the guide rod is fixedly set on the top surface of the connector, and the top end of the guide rod slides through the guide hole and extends to the top of the guide hole.
[0012] As a preferred technical solution of this utility model, the surface of the connecting cylinder two is provided with an annular groove, a slider is slidably arranged in the annular groove, and the slider is fixedly connected to the inner wall of the connecting ring, and the annular groove is opened at the bottom of the limiting hole.
[0013] The beneficial effects of this utility model are:
[0014] In this utility model, by setting multiple sleeves, it can be used to install bolts and nuts of various specifications without temporary disassembly and assembly, which is highly efficient and convenient to use. Furthermore, suction cups are set on both sides of the sleeves through threaded rods and connecting parts. The suction cups can be adsorbed onto the surface of the mounting part with bolts installed, thereby playing a limiting role and making it easy to rotate the sleeve to install the nut. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of a sleeve for installing anchor bolts and nuts on steel structures according to this utility model. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the structure of a sleeve for installing anchor bolts and nuts on steel structures according to this utility model. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the structure of a sleeve for installing anchor bolts and nuts on steel structures according to this utility model. Figure 3 ;
[0019] Figure 4 yes Figure 3 Enlarged view of point A in the middle;
[0020] Figure 5 This is a schematic diagram of the structure of a sleeve for installing anchor bolts and nuts on steel structures according to this utility model. Figure 4 .
[0021] In the diagram: 1. Connecting column; 2. Connecting cylinder one; 3. Connecting cylinder two; 4. Sleeve; 5. Suction cup; 6. Guide rod; 7. Threaded rod; 8. Connecting piece; 9. Limiting bolt; 10. Connecting ring; 11. Slot; 12. Block; 13. Limiting hole; 14. Annular groove; 15. Slider. Detailed Implementation
[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0023] Example: Figures 1 to 5 As shown, this utility model discloses a sleeve for installing anchor bolts and nuts on steel structures, including a connecting column 1. Multiple connecting sleeves 2 are uniformly fixed circumferentially on the surface of the connecting column 1. A connecting sleeve 3 is installed at the end of the connecting sleeve 2 away from the connecting column 1. A sleeve 4 is fixedly installed at the end of the connecting sleeve 3 away from the connecting sleeve 2. The inner walls of the multiple sleeves 4 are provided with mounting grooves that mate with bolts and nuts, and the size of the mounting grooves on each sleeve 4 is different. By simultaneously setting multiple sleeves 4 for installing different bolts and nuts, the applicability and utilization rate can be improved. It requires no disassembly or installation, making it convenient to use. During operation, the connecting column 1 and the other sleeves 4 can be held by hand for easy force application.
[0024] A connecting ring 10 is rotatably fitted onto the surface of the connecting sleeve 3. Mounting blocks extend from both ends of the connecting ring 10. A threaded rod 7 is threaded onto each mounting block. A connecting piece 8 is rotatably mounted at the bottom end of the threaded rod 7, and a suction cup 5 is engaged at the bottom end of the connecting piece 8. A guide rod 6 is positioned between the connecting piece 8 and the mounting block. Before rotating the sleeve 4, the suction cup 5 can adhere to the surface of an existing mounting component with bolts, providing a certain degree of restraint and preventing the sleeve 4 from shifting. During operation, the threaded rod 7 can be manually rotated, causing the connecting piece 8 and the suction cup 5 to move, allowing the suction cup 5 to adhere to the surface of the mounting component. Then, the sleeve 4 can be rotated to install the nut.
[0025] Multiple limiting holes 13 are evenly provided on one side of both connecting cylinder 2 and connecting cylinder 3. The limiting holes 13 penetrate both sides of connecting cylinder 3 and extend from one side of connecting cylinder 2 to the inner wall of the other side. Connecting cylinder 3 is snapped into the interior of connecting cylinder 2, and both are fixed by limiting bolts 9, which are installed within the limiting holes 13. The number of limiting bolts 9 is less than the number of limiting holes 13. To facilitate rotation of sleeve 4, the distance between connecting cylinder 2 and connecting cylinder 3 can be adjusted according to actual conditions. The limiting bolts 9 are fixed in the limiting holes 13 at different positions to secure connecting cylinder 2 and connecting cylinder 3. The limiting bolts 9 are threadedly connected to the limiting holes 13.
[0026] The bottom end of the connector 8 is provided with a slot 11, and the top surface of the suction cup 5 is fixedly provided with a block 12. The block 12 is engaged in the slot 11. The engagement between the block 12 and the slot 11 facilitates the disassembly and assembly of the suction cup 5 and the connector 8.
[0027] A guide hole is provided through the mounting block. The bottom end of the guide rod 6 is fixedly set on the top surface of the connector 8. The top end of the guide rod 6 slides through the guide hole and extends to the top of the guide hole. When the threaded rod 7 rotates and drives the connector 8 to move, the guide rod 6 on the connector 8 moves along the guide hole, thereby playing a guiding role. When the suction cup 5 is attached to the surface of the mounting part, the top end of the guide rod 6 is still located at the top of the guide hole.
[0028] The surface of the connecting cylinder 2 3 is provided with an annular groove 14, and a slider 15 is slidably arranged in the annular groove 14. The slider 15 is fixedly connected to the inner wall of the connecting ring 10. The annular groove 14 is opened at the bottom of the limiting hole 13. After the suction cup 5 is adsorbed, the sleeve 4 can be rotated to keep the connecting ring 10 stationary.
[0029] During operation, multiple sleeves 4 can be used to install bolts and nuts of various specifications without the need for temporary disassembly and assembly, which is highly efficient and convenient to use. Suction cups 5 are provided on both sides of the sleeve 4 through threaded rods 7 and connecting parts 8. The suction cups 5 can be attached to the surface of the mounting part with bolts installed, thereby playing a limiting role and making it easy to rotate the sleeve 4 to install the nut.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A sleeve for use in the installation of a steel structure anchor bolt nut, comprising a connecting column (1), characterized in that, Multiple connecting cylinders (2) are uniformly fixed circumferentially on the surface of the connecting column (1). A connecting cylinder (3) is installed at the end of the connecting cylinder (2) away from the connecting column (1). A sleeve (4) is fixedly provided at the end of the connecting cylinder (3) away from the connecting cylinder (2). The inner wall of the multiple sleeves (4) is provided with a mounting groove that mates with a nut. The size of the mounting groove on each sleeve (4) is different. A connecting ring (10) is rotatably fitted on the surface of the connecting cylinder (3). Mounting blocks extend from both ends of the connecting ring (10). A threaded rod (7) is threadedly connected to the mounting block. A connecting piece (8) is rotatably provided at the bottom end of the threaded rod (7). A suction cup (5) is snapped into the bottom end of the connecting piece (8). A guide rod (6) is provided between the connecting piece (8) and the mounting block.
2. A sleeve for use in the installation of a steel foundation bolt nut according to claim 1, characterised in that, Multiple limiting holes (13) are evenly provided on one side of the connecting cylinder 1 (2) and the connecting cylinder 2 (3). The limiting holes (13) penetrate both sides of the connecting cylinder 2 (3), and the limiting holes (13) penetrate one side of the connecting cylinder 1 (2) and extend to the inner wall of the other side.
3. A sleeve for use in the installation of a foundation bolt nut in a steel structure according to claim 2, characterised in that, The second connecting cylinder (3) is snapped into the inside of the first connecting cylinder (2), and the first connecting cylinder (2) and the second connecting cylinder (3) are fixed by limiting bolts (9), and the limiting bolts (9) are installed in the limiting holes (13), and the number of limiting bolts (9) is less than the number of limiting holes (13).
4. A sleeve for use in the installation of foundation bolts and nuts in steel structures according to claim 1, characterised in that The bottom end of the connector (8) is provided with a slot (11), and the top surface of the suction cup (5) is fixedly provided with a block (12), which is engaged in the slot (11).
5. A sleeve for use in the installation of foundation bolts and nuts in steel structures according to claim 1, characterised in that The mounting block has a through guide hole, and the bottom end of the guide rod (6) is fixedly set on the top surface of the connector (8). The top end of the guide rod (6) slides through the guide hole and extends to the top of the guide hole.
6. A sleeve for use in the installation of a foundation bolt nut in a steel structure according to claim 3, characterised in that, The surface of the connecting cylinder 2 (3) is provided with an annular groove (14), and a slider (15) is slidably arranged in the annular groove (14). The slider (15) is fixedly connected to the inner wall of the connecting ring (10), and the annular groove (14) is opened at the bottom of the limiting hole (13).
Citation Information
Patent Citations
Special sleeve for mounting foundation bolt and nut of steel structure
CN214090375U