A nut

By designing a nut structure that can adapt to bolts of different diameters, and utilizing the cooperation of sliding rods and springs, the problem that existing nuts can only adapt to a single specification of bolts has been solved, realizing a stable connection of bolts of multiple specifications and improving the ease of operation and efficiency.

CN224533219UActive Publication Date: 2026-07-21SHANGHAI BEPA HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BEPA HARDWARE CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing nuts can only be used with bolts of a single specification, which cannot meet the tightening requirements of bolts of various diameters, resulting in high spare parts storage costs and cumbersome operation.

Method used

A nut structure was designed, comprising a housing, a threaded sleeve, an inner cavity, a connecting groove, and an adjusting component. By cooperating with the arc-shaped auxiliary groove through a sliding rod, the elastic force of the spring is used to enable the limiting plate to adapt to bolts of different diameters, and it is fixed by a locking screw to ensure a stable connection.

Benefits of technology

It achieves flexibility in adapting to bolts of different diameters, simplifies the operation process, improves work efficiency and connection stability, and reduces the frequency of spare parts replacement and storage costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224533219U_ABST
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Abstract

The utility model discloses a nut, including the casing, the side wall on casing is provided with the thread cover, is equipped with the inner chamber on the casing, is equipped with the intercommunication groove of intercommunication with inner chamber on the casing, be provided with the adjusting assembly on the casing, adjusting assembly includes the rotating block of setting in the inner chamber, four auxiliary grooves are seted up on the rotating block, four the sliding rod of sliding connection with it is all through setting in four auxiliary grooves, four the side wall on sliding rod close to casing central axis all is fixedly connected with connecting rod. The utility model discloses through the cooperation of sliding rod and arc auxiliary groove, realizes the synchronous expansion and contraction of spacing piece, thereby adapts different diameter bolt, spring elasticity guarantees that spacing piece and bolt are closely combined, and cooperation locking screw rod fixed, and the connection is stable and prevents loosening, and easy operation, and the adaptability flexibility and operation efficiency are improved significantly.
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Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a nut. Background Technology

[0002] Nuts, as an indispensable basic component in mechanical connections, work with bolts to achieve fastening connections between components and are widely used in fields such as construction, machinery manufacturing, and the automotive industry. Through the engagement of their inner threads with the bolt's outer threads, nuts convert axial force into frictional force, ensuring the stability of the connection. They are a key element in ensuring the overall structural strength and operational safety of equipment. Different sized nuts must be matched with bolts of corresponding sizes.

[0003] However, existing nut structures have obvious limitations. Traditional nuts can only be used with bolts of a single specification. When faced with bolts of various diameters, they need to be replaced frequently, which increases the cost of spare parts storage and the complexity of operation, and cannot meet the fastening needs under diverse working conditions. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a new type of nut.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A nut includes a housing, a threaded sleeve on one side wall of the housing, an inner cavity on the housing, a communicating groove on the housing that communicates with the inner cavity, and an adjusting component on the housing.

[0007] Preferably, the adjustment assembly includes a rotating block disposed within the inner cavity. The rotating block has four auxiliary slots, and a sliding rod slidably connected to each of the four auxiliary slots passes through them. A connecting rod is fixedly connected to one side wall of each of the four sliding rods near the central axis of the housing. Two connecting rods located on the same sliding rod pass through the inner wall of the inner cavity and extend into the housing. One end of each of the two connecting rods located on the same sliding rod is fixedly connected to one end of a spring, and the other end of each of the two springs is fixedly connected to the same limiting piece.

[0008] Preferably, the connecting groove and the four auxiliary grooves are all arc-shaped.

[0009] Preferably, an operating rod is slidably connected to the communicating groove, and one end of the operating rod is fixedly connected to the rotating block.

[0010] Preferably, a rolling groove is formed on the inner wall of the inner cavity, and a rolling block is provided on the rotating block to be tactically connected with the rolling groove.

[0011] Preferably, the top of the housing has multiple locking holes, and multiple mounting blocks located outside the inner cavity are fixedly installed on the operating rod. A locking screw threadedly connected to the mounting block is provided through the mounting block, and the locking screw is adapted to the multiple locking holes.

[0012] The beneficial effects of this utility model are:

[0013] This utility model achieves synchronous extension and retraction of the limiting plate through the cooperation of the sliding rod and the arc-shaped auxiliary groove, thereby adapting to bolts of different diameters. The spring force ensures that the limiting plate and the bolt fit tightly, and with the locking screw for fixation, the connection is stable and prevents loosening. It is easy to operate and significantly improves the flexibility of adaptation and work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of one side of a nut according to the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the other side of a nut according to the present invention.

[0016] Figure 3 This is a schematic diagram of the planar structure of the adjustment component of this utility model;

[0017] Figure 4 This is a schematic diagram of the planar structure of the rotating block, auxiliary groove, and sliding rod of this utility model.

[0018] In the diagram: 1. Housing, 2. Threaded sleeve, 3. Limiting plate, 4. Connecting rod, 5. Spring, 6. Communicating groove, 7. Locking hole, 8. Sliding rod, 9. Locking screw, 10. Mounting block, 11. Inner cavity, 12. Rotating block, 13. Rolling groove, 14. Rolling block, 15. Auxiliary groove, 16. Operating rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 A nut includes a housing 1, a threaded sleeve 2 is provided on one side wall of the housing 1, the inner wall of the threaded sleeve 2 is threaded, which can initially engage with the external thread of the bolt to provide basic connection and positioning for the bolt, an inner cavity 11 is provided on the housing 1, a communicating groove 6 is provided on the housing 1 to communicate with the inner cavity 11, and an adjustment component is provided on the housing 1.

[0021] The adjustment assembly includes a rotating block 12 disposed within the inner cavity 11. The rotating block 12 has four auxiliary slots 15, each containing a sliding rod 8 slidably connected to it. Connecting rods 4 are fixedly connected to the side wall of each sliding rod 8 near the central axis of the housing 1. Two connecting rods 4 on the same sliding rod 8 penetrate the inner wall of the inner cavity 11 and extend into the housing 1. One end of each connecting rod 4 on the same sliding rod 8 is fixedly connected to one end of a spring 5. The other ends of the two springs 5 ​​are fixedly connected to the same limiting piece 3. The inner wall of the limiting piece 3 has a texture adapted to the bolt thread, allowing direct contact with the bolt. It can be adjusted to accommodate bolts of different diameters, connecting the slot 6 and... All four auxiliary slots 15 are arc-shaped. An operating rod 16 is slidably connected to the connecting slot 6. One end of the operating rod 16 is fixedly connected to the rotating block 12. A rolling groove 13 is provided on the inner wall of the inner cavity 11. A rolling block 14 is provided on the rotating block 12 and is slidably connected to the rolling groove 13. The rolling groove 13 provides a rolling track for the rolling block 14, restricts the range of motion of the rolling block 14, and reduces the frictional resistance when the rotating block 12 rotates. Multiple locking holes 7 are provided on the top of the housing 1. Multiple mounting blocks 10 located outside the inner cavity 11 are fixedly installed on the operating rod 16. A locking screw 9 is threadedly connected to the mounting block 10. The locking screw 9 is adapted to the multiple locking holes 7.

[0022] When using this utility model, push the operating rod 16 to slide along the arc-shaped connecting groove 6, causing the rotating block 12 to rotate in the inner cavity 11. At this time, the arc-shaped auxiliary groove 15 squeezes the sliding rod 8, causing the four sliding rods 8 to slide synchronously towards or away from the center of the housing 1. The sliding rod 8 drives the limiting plate 3 to move through the connecting rod 4. If the bolt diameter is large, the limiting plate 3 moves outward and stretches the spring 5. If the bolt diameter is small, the limiting plate 3 moves inward and compresses the spring 5. The elasticity of the spring 5 ensures that the limiting plate 3 always fits the bolt and is adapted to the thread. After adaptation, rotate the locking screw 9 on the mounting block 10 to screw it into the corresponding locking hole 7 at the top of the housing 1 to fix it in place. When replacing the bolt, rotate the locking screw 9 in the opposite direction and repeat the adjustment.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nut, comprising a housing (1), characterized in that, A threaded sleeve (2) is provided on one side wall of the housing (1), an inner cavity (11) is provided on the housing (1), a communicating groove (6) is provided on the housing (1) and an adjustment component is provided on the housing (1).

2. A nut according to claim 1, characterized in that, The adjustment assembly includes a rotating block (12) disposed in the inner cavity (11). The rotating block (12) has four auxiliary slots (15). Each of the four auxiliary slots (15) has a sliding rod (8) slidably connected to it. Each of the four sliding rods (8) has a connecting rod (4) fixedly connected to one side wall near the central axis of the housing (1). The two connecting rods (4) on the same sliding rod (8) penetrate the inner wall of the inner cavity (11) and extend into the housing (1). One end of each of the two connecting rods (4) on the same sliding rod (8) is fixedly connected to one end of a spring (5). The other end of the two springs (5) is fixedly connected to the same limiting piece (3).

3. A nut according to claim 2, characterized in that, The connecting groove (6) and the four auxiliary grooves (15) are all arc-shaped.

4. A nut according to claim 2, characterized in that, An operating rod (16) is slidably connected to the communicating groove (6), and one end of the operating rod (16) is fixedly connected to the rotating block (12).

5. A nut according to claim 2, characterized in that, A rolling groove (13) is provided on the inner wall of the inner cavity (11), and a rolling block (14) is provided on the rotating block (12) to be rolledly connected to the rolling groove (13).

6. A nut according to claim 4, characterized in that, The top of the housing (1) is provided with multiple locking holes (7). Multiple mounting blocks (10) located outside the inner cavity (11) are fixedly installed on the operating rod (16). A locking screw (9) threadedly connected to the mounting block (10) is provided through it. The locking screw (9) is adapted to the multiple locking holes (7).