Anchor bolt with self-locking function
By designing a squeezing mechanism and a limiting mechanism, the resistance between the anchor bolt and the mounting slot is increased, which solves the problem of anchor bolt loosening under vibration and improves the installation strength and stability of the anchor bolt.
Patent Information
- Application Number
- CN202520759032.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Common anchor bolts are prone to loosening under external vibration, leading to reduced stability.
The design employs a compression mechanism and a limiting mechanism, and through the cooperation of components such as sleeves, metal gaskets, retaining rings, and fastening nuts, it increases the resistance between the anchor bolt and the mounting slot, thereby improving stability.
This enhances the installation strength and stability of the anchor bolts, prevents loosening, and ensures the safety and stability of the structure.
Smart Images

Figure CN223825391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anchor bolt installation, and in particular to an anchor bolt with a self-locking function. Background Technology
[0002] An anchor is a fastener used to secure a structure to a foundation or other load-bearing structure. By combining with concrete or other materials, it provides the necessary pull-out, shear, and seismic resistance to ensure the safety and stability of the structure.
[0003] Common anchors are fixed in mounting slots by bonding with concrete. The anchor is connected to the mounting slot through the structural force between the concrete and the anchor. When the anchor installation position is affected by external vibration, the structural force between the concrete and the anchor can be easily destroyed, causing the anchor to loosen and reducing its stability. Utility Model Content
[0004] The purpose of this invention is to provide an anchor bolt with a self-locking function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anchor bolt with a self-locking function, comprising an anchor bolt body;
[0006] A fastening nut, which is threadedly connected to one end of the anchor bolt body;
[0007] It also includes a pressing mechanism and a limiting mechanism, wherein the pressing mechanism is disposed on the anchor bolt body and is used to fasten the anchor bolt body;
[0008] The limiting mechanism is located at one end of the anchor bolt body and at one end of the fastening nut, and limits and fixes the fastening nut.
[0009] Preferably, the extrusion mechanism includes:
[0010] A metal washer is inserted into one end of the anchor bolt body and is located on the side of the fastening nut;
[0011] A retaining ring, one end of which is fixedly connected to one side of a metal gasket, is arranged in a trapezoidal shape.
[0012] Preferably, the extrusion mechanism further includes:
[0013] A sleeve, wherein the inner wall of one end of the sleeve is threaded to one end of the anchor bolt body;
[0014] A through groove, wherein the through groove is arranged in a ring array at the other end of the sleeve;
[0015] An extrusion block is disposed at the other end of the sleeve and is integrally formed with the sleeve.
[0016] The protrusions are fixedly connected to the outer wall of one end of the extrusion block, and the protrusions are arranged horizontally.
[0017] Preferably, the limiting mechanism includes:
[0018] The movable tube is inserted into one end of the anchor bolt body, and one end of the movable tube is attached to the other side of the fastening nut;
[0019] A limiting block is provided at one end of the movable tube, and its outer wall is in contact with one end of the movable tube.
[0020] Preferably, the limiting mechanism further includes:
[0021] A connecting block is disposed at one end of the anchor bolt body, and the connecting block and the anchor bolt body are integrally formed;
[0022] A mortise is formed at one end of the connecting block and is used to install the limiting block.
[0023] Preferably, the fixing ring is inserted into one end of the anchor bolt body, the inner wall of one end of the sleeve is provided with internal threads, and one end of the extrusion block is set with an inclined surface.
[0024] The technical effects and advantages of this utility model are as follows:
[0025] This invention utilizes a combination of a sleeve, metal washer, retaining ring, fastening nut, compression block, and protrusions. By rotating the sleeve, one end of the sleeve connects to the main thread of the anchor bolt. The sleeve moves along the anchor bolt body to adjust its position. Then, rotating the fastening nut compresses the metal washer, pushing the metal washer and retaining ring towards one end of the sleeve. The outer wall of the retaining ring compresses the inclined surface of one end of the compression block, causing multiple compression blocks to deform and expand. One end of the compression block drives multiple protrusions to compress the inner wall of the anchor bolt body's mounting slot, increasing the resistance between the compression block and the mounting slot, improving the strength of the anchor bolt body installation, and ensuring the stability of the anchor bolt body. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0027] Figure 2 This is an exploded view of the anchor bolt body of this utility model.
[0028] Figure 3 This is a front view of the fixing ring of this utility model.
[0029] Figure 4This is a schematic diagram of the structure of the anchor bolt body of this utility model.
[0030] In the diagram: 1. Anchor bolt body; 2. Fastening nut; 3. Extrusion mechanism; 31. Metal washer; 32. Fixing ring; 33. Sleeve; 34. Through groove; 35. Extrusion block; 36. Protrusion; 4. Limiting mechanism; 41. Movable tube; 42. Limiting block; 43. Connecting block; 44. Mortise. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] This utility model provides, for example Figures 1-4 An anchor bolt with a self-locking function is shown, comprising an anchor bolt body 1; a fastening nut 2; a clamping mechanism 3; and a limiting mechanism 4. The anchor bolt body 1 has external threads on its outer wall and is used for installation on a wall. The fastening nut 2 is threadedly connected to one end of the anchor bolt body 1. By rotating the fastening nut 2, it moves along the anchor bolt body 1, clamping and fixing the anchor bolt body 1 to the external connecting parts. The clamping mechanism 3 is disposed on the anchor bolt body 1 and is used to fasten the anchor bolt body 1. The clamping mechanism 3 clamps the inner wall of the mounting slot of the anchor bolt body 1, increasing the installation strength of the anchor bolt body 1 and ensuring its stability. The limiting mechanism 4 is disposed at one end of the anchor bolt body 1 and at one end of the fastening nut 2, limiting and fixing the fastening nut 2. The limiting mechanism 4 fixes the fastening nut 2, ensuring its stability and thus improving the stability of the clamping mechanism 3.
[0033] Furthermore, the compression mechanism 3 includes a metal washer 31, which is inserted into one end of the anchor bolt body 1 and located on one side of the fastening nut 2. The metal washer 31 is used to contact the wall. By rotating the fastening nut 2, the metal washer 31 is compressed, making the metal washer 31 fit tightly against the wall. A fixing ring 32 is fixedly connected to one side of the metal washer 31 at one end. The fixing ring 32 is arranged in a trapezoidal shape and moves together with the metal washer 31. It is used to compress one end of the sleeve 33. The compression is performed; a sleeve 33, one end of which is threaded to one end of the anchor bolt body 1. By rotating the sleeve 33, one end of the sleeve 33 is threaded to the anchor bolt body 1, and the sleeve 33 moves along the anchor bolt body 1 to adjust its position; through grooves 34 are arranged in a ring array at the other end of the sleeve 33. By opening multiple through grooves 34 at one end of the sleeve 33, multiple compression blocks 35 are formed at one end of the sleeve 33; compression blocks 35 are disposed at the other end of the sleeve 33. The sleeve 35 is integrally formed with the casing 33. The extrusion block 35 deforms and expands at one end of the casing 33, extruding the inner wall of the mounting slot of the anchor bolt body 1. The protrusions 36 are fixedly connected to the outer wall of one end of the extrusion block 35 and are arranged horizontally. By using multiple protrusions 36 to contact the inner wall of the mounting slot of the anchor bolt body 1, the resistance between the extrusion block 35 and the mounting slot is increased. By rotating the casing 33, one end of the casing 33 is threadedly connected to the anchor bolt body 1, and the casing 33 moves along the anchor bolt body 1. The position of the sleeve 33 is adjusted, and then the fastening nut 2 is rotated to squeeze the metal washer 31, pushing the metal washer 31 and the fixing ring 32 toward one end of the sleeve 33. The outer wall of the fixing ring 32 squeezes the inclined surface of one end of the squeezing block 35, causing multiple squeezing blocks 35 to deform and expand. One end of the squeezing block 35 drives multiple protrusions 36 to squeeze the inner wall of the mounting slot of the anchor bolt body 1, increasing the resistance between the squeezing block 35 and the mounting slot, improving the installation strength of the anchor bolt body 1, and ensuring the stability of the anchor bolt body 1.
[0034] Furthermore, the limiting mechanism 4 includes a movable tube 41, which is inserted into one end of the anchor bolt body 1, with one end fitting against the other side of the fastening nut 2. The movable tube 41 is used to compress the fastening nut 2 to prevent it from loosening. A limiting block 42 is located at one end of the movable tube 41, with its outer wall fitting against one end of the movable tube 41. The limiting block 42 is arranged in a long strip shape to limit one end of the movable tube 41. A connecting block 43 is located at one end of the anchor bolt body 1, and the connecting block 43 is connected to the anchor bolt body 1. The anchor bolt body 1 is assembled as a whole. The connecting block 43 is hexagonal in shape. The mortise 44 is located at one end of the connecting block 43 and is used to install the limiting block 42. The mortise 44 is square and is used to install the connecting block 43. The connecting block 43 and the mortise 44 are fixed together by a tenon and mortise structure. The movable tube 41 is inserted into one end of the anchor bolt body 1 to limit one end of the fastening nut 2. Then the connecting block 43 is fixed in the mortise 44. The connecting block 43 limits the movable tube 41 to ensure the stability of the fastening nut 2 and prevent the fastening nut 2 from loosening.
[0035] The fixing ring 32 is inserted into one end of the anchor bolt body 1, the inner wall of one end of the sleeve 33 is provided with internal thread, and one end of the extrusion block 35 is set with an inclined surface.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. An anchor bolt with a self-locking function, comprising: Anchor bolt body (1); A fastening nut (2) is threadedly connected to one end of the anchor bolt body (1); The feature is that it further includes a squeezing mechanism (3) and a limiting mechanism (4), wherein the squeezing mechanism (3) is disposed on the anchor bolt body (1) and is used to fasten the anchor bolt body (1); The limiting mechanism (4) is located at one end of the anchor bolt body (1) and at one end of the fastening nut (2) to limit and fix the fastening nut (2).
2. The anchor bolt with self-locking function according to claim 1, characterized in that, The extrusion mechanism (3) includes: Metal washer (31), which is inserted into one end of the anchor bolt body (1) and located on one side of the fastening nut (2); A fixing ring (32) is fixedly connected at one end to one side of a metal gasket (31), and the fixing ring (32) is arranged in a trapezoidal shape.
3. An anchor bolt with self-locking function according to claim 2, characterized in that, The extrusion mechanism (3) further includes: A sleeve (33) is threaded to one end of the inner wall of the sleeve (33) and to one end of the anchor bolt body (1); Through slots (34), which are arranged in a ring array at the other end of the sleeve (33); An extrusion block (35) is disposed at the other end of the sleeve (33) and is integrally disposed with the sleeve (33); The protrusion (36) is fixedly connected to the outer wall of one end of the extrusion block (35), and the protrusion (36) is arranged horizontally.
4. An anchor bolt with self-locking function according to claim 3, characterized in that, The limiting mechanism (4) includes: The movable tube (41) is inserted into one end of the anchor bolt body (1), and one end of the movable tube (41) is attached to the other side of the fastening nut (2); A limiting block (42) is provided at one end of the movable tube (41), and its outer wall is in contact with one end of the movable tube (41).
5. An anchor bolt with self-locking function according to claim 4, characterized in that, The limiting mechanism (4) also includes: A connecting block (43) is disposed at one end of the anchor bolt body (1), and the connecting block (43) and the anchor bolt body (1) are integrally disposed thereon; A mortise (44) is provided at one end of the connecting block (43) and is used to install the limiting block (42).
6. An anchor bolt with self-locking function according to claim 5, characterized in that, The fixing ring (32) is inserted into one end of the anchor body (1), the inner wall of one end of the sleeve (33) is provided with internal thread, and one end of the extrusion block (35) is set with an inclined surface.