Steel beam bolt with anti-loosening function
By using a combination design of hexagonal nuts, fixed wedge rings, screws, channels and glue blast beads in steel beam bolts, combined with paraffin filler and double nut structure, the problem of loosening of steel beam bolts under vibration and external impact is solved, and efficient anti-loosening effect and vibration resistance are achieved, improving the stability and service life of the connection.
Patent Information
- Application Number
- CN202422942719.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-01
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-12-01
AI Technical Summary
Existing steel beam bolts are prone to loosening due to vibration and external impact after long-term use, resulting in unstable connections, posing safety hazards, and it is difficult to effectively prevent loosening when filling bolts.
The combination design of hexagonal nuts, fixed wedge rings, screws, channels, glue blast beads and paraffin fillers is used to fill the gaps when paraffin melts, forming a tight layer, combining the double nut structure and wedge-shaped gaskets to enhance vibration resistance and anti-loosening effect.
Effectively prevent bolts from loosening, improve connection stability and vibration resistance, reduce maintenance costs, extend service life, enhance the corrosion resistance of bolts, and ensure the firmness and safety of steel beam connections.
Smart Images

Figure CN223282372U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel beam bolts, in particular to a steel beam bolt with an anti-loosening function. Background Art
[0002] In a utility model patent application, application publication number CN106400958B, dated August 17, 2018, and entitled "A Single-Sided Connecting Bolt for Steel Beams and Steel Pipe Columns," the present invention discloses a single-sided connecting bolt for steel beams and steel pipe columns. The bolt column comprises a bolt stud with a threaded end and a slotted end. A limiter is rotatably connected within the slot. One end of the limiter engages with a locking member that prevents the limiter from rotating. A pop-up member is connected between the other end of the limiter and the bolt stud. Before the limiter rotates, the locking member constrains the limiter to fully engage within the slot. After the locking member is released, the pop-up member ejects the limiter and rotates it, protruding from the slot to lock the steel pipe column. The single-sided connecting bolt for steel pipe columns and steel beams of the present invention features a simple structure, secure connection, and quick and easy installation and use, making it an ideal connecting member. The present invention employs a pop-up member to eject the limiter, and a locking member serves as an ejection switch. This allows for convenient ejection, simple control, and easy fixation. The present invention realizes simple pop-up positioning of the limiting member and is mainly suitable for single-sided connection of steel pipe columns and steel beams.
[0003] In the prior art including the above-mentioned patents, in the construction field, it is necessary to rely on steel beams for support, and when connecting the steel beams, they need to be connected and fixed with bolts and nuts. After use, the steel beam bolts will become loose due to long-term fixation, external impact or vibration generated by other situations, causing the bolts to fall, resulting in loose steel beam connections, thereby causing construction accidents and hidden dangers to living and use. In addition, when connecting some steel beams, all bolts need to be buried inside the steel beams, which makes it difficult to use nuts to prevent loosening. Therefore, it is necessary to design a steel beam bolt with anti-loosening function. Utility Model Content
[0004] The purpose of the utility model is to provide a steel beam bolt with an anti-loosening function to solve the problem proposed in the above background technology that the bolts buried entirely in the steel beam become loose due to vibration.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a steel beam bolt with an anti-loosening function, comprising a hexagonal nut, a fixed wedge ring fixedly connected to the top of the hexagonal nut, a screw fixedly connected to the top of the fixed wedge ring, a groove provided inside the screw, a glue bead provided inside the groove, a diversion hole provided at one end of the screw, a wedge-shaped gasket provided on the outside of the screw, a fastening nut threadedly connected to the outer wall of the screw, and an anti-slip nut threadedly connected to the outer wall of the screw.
[0006] Furthermore, a straight groove is provided at the bottom of the hexagonal nut, and the channel passes through the screw rod and connects with the straight groove.
[0007] Furthermore, the outer wall of the fixed wedge ring is configured to be tooth-shaped, and the outer wall of the fixed wedge ring is provided with four right-angled butt teeth, and the fixed wedge ring and the wedge-shaped gasket are engaged with each other.
[0008] Furthermore, a plurality of groups of glue bursting beads are arranged inside the groove, and the interior of the groove is filled with paraffin filler.
[0009] Furthermore, the size of the fastening nut is smaller than that of the anti-slip nut, and the inner diameters of the openings of the fastening nut and the anti-slip nut are the same, and both are hexagonal nuts.
[0010] Furthermore, an anti-loosening card is provided on the inner wall of the anti-loosening nut, and the anti-loosening card is engaged with the thread of the screw.
[0011] Furthermore, the installation position of the fastening nut is located above the anti-slip nut, and the other end of the screw is in a prism shape.
[0012] Compared with the prior art, the beneficial effects of the present invention are: the steel beam bolt with anti-loosening function is reasonable and has the following advantages:
[0013] (1) The paraffin filler filled in the groove is convenient for early production. At the same time, when used in steel beam connection, some bolts that need to be completely buried are prevented from loosening. The chemical property of paraffin melting when heated is used, so that the glue beads enter the connection gap of the screw as the paraffin melts. The outer layer of the glue beads dissolves when heated, thereby filling the threads and the connection gaps. Combined with the paraffin solution, a tight filling layer is formed between the threads, providing strong adhesion and vibration resistance, ensuring the stability and firmness of the components, reducing maintenance and repairs caused by loosening, and reducing long-term maintenance costs. It forms protection for the outer ring, and the anti-corrosion property can protect the bolts from environmental influences, extend their service life, improve the strength of the bolt connection, and reduce the risk of loosening under vibration and impact. Secondly, when used in through-connection, a double nut structure is used for anti-loosening treatment. At the same time, the inner wall of the anti-loosening nut is designed with an anti-loosening card, which is cut with the thread to prevent the through-type bolt from having an anti-loosening structure;
[0014] (2) When connecting steel beams by bolts, a double-layer wedge structure is designed on the bolts, which significantly increases the anti-vibration effect of the bolts. The fixed wedge ring and the wedge gasket are connected by mutual engagement, and the right-angled protrusions set on the outside of the fixed wedge ring are used to quickly position and dock the wedge gasket. At the same time, the fixed wedge ring and the wedge gasket can be tightened with bolts even under severe vibration and dynamic loads, making the structures more secure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the front view of the utility model;
[0016] Figure 2 This is a top view of the utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure of the fixed wedge ring and the wedge gasket of the utility model;
[0018] Figure 4 This is a cross-sectional view of the utility model;
[0019] Figure 5 This utility model is viewed from above.
[0020] In the figure: 1. Hexagonal nut; 2. Fixed wedge ring; 3. Screw; 4. Groove; 5. Glue bead; 6. Diversion hole; 7. Wedge-shaped gasket; 8. Fastening nut; 9. Anti-slip nut; 10. Anti-loosening card. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figure 1-5 , a technical solution provided by the utility model:
[0023] Example 1:
[0024] A steel beam bolt with an anti-loosening function includes a hexagonal nut 1, a fixed wedge ring 2 is fixedly connected to the top of the hexagonal nut 1, a screw rod 3 is fixedly connected to the top of the fixed wedge ring 2, a groove 4 is provided inside the screw rod 3, a glue bead 5 is provided inside the groove 4, a diversion hole 6 is provided at one end of the screw rod 3, a wedge-shaped gasket 7 is provided on the outside of the screw rod 3, a fastening nut 8 is threadedly connected to the outer wall of the screw rod 3, and an anti-slip nut 9 is threadedly connected to the outer wall of the screw rod 3.
[0025] The above structure allows the bare double to prevent loosening of some bolts that need to be completely buried when used in steel beam connections. The chemical property of paraffin melting when heated is used to allow the glue beads 5 to enter the connection gap of the screw 3 as the paraffin melts. The outer coat of the glue beads 5 dissolves when heated, thereby filling the threads and the connection gaps. Combined with the paraffin solution, a tight filling layer is formed between the threads, providing strong adhesion and vibration resistance.
[0026] Furthermore, a straight groove is provided at the bottom of the hexagonal nut 1, and the groove 4 passes through the screw 3 and connects with the straight groove. The outer wall of the fixed wedge ring 2 is set to be toothed, and the outer wall of the fixed wedge ring 2 is provided with four right-angled docking teeth, and the fixed wedge ring 2 and the wedge-shaped gasket 7 are engaged with each other.
[0027] When the above structure connects the steel beams by means of bolts, a double-layer wedge structure is designed on the bolts, thereby significantly increasing the anti-vibration effect of the bolts.
[0028] Furthermore, a plurality of groups of glue bursting beads 5 are arranged inside the groove 4, and the interior of the groove 4 is filled with paraffin filler.
[0029] The above structure can reduce maintenance and repairs caused by loosening by melting the paraffin filler, which can reduce long-term maintenance costs, form protection for the outer ring, and the anti-corrosion properties can protect the bolts from environmental influences, extend their service life, and improve the strength of the bolt connection.
[0030] Furthermore, the size of the fastening nut 8 is smaller than that of the anti-slip nut 9, and the inner diameter of the openings of the fastening nut 8 and the anti-slip nut 9 are the same, and both are hexagonal nuts. The inner wall of the anti-slip nut 9 is provided with an anti-loosening card 10, and the anti-loosening card 10 is engaged with the thread of the screw 3. The installation position of the fastening nut 8 is located above the anti-slip nut 9, and the other end of the screw 3 is prism-shaped.
[0031] The above structure adopts a double nut structure to prevent loosening. The inner wall of the anti-loosening nut 9 is designed with an anti-loosening card 10, which is engaged with the thread to prevent the through-type bolt from having an anti-loosening structure.
[0032] Working principle: When in use, first of all, in the construction field, it is necessary to rely on steel beams for support. When connecting the steel beams, bolts and nuts are needed to connect and fix them. When connecting some steel beams, all the bolts need to be buried inside the steel beams, and it is difficult to use nuts to prevent loosening. The paraffin filler filled in the groove 4 is convenient for early production. At the same time, when the steel beams are connected and used, some bolts that need to be buried are prevented from loosening. The chemical property of paraffin melting when heated is used, so that the glue beads 5 enter the connection gap of the screw 3 as the paraffin melts. The outer coat of the glue beads 5 is dissolved by heat, thereby filling the threads and the connection gaps. Combined with the paraffin solution, a tight filling layer is formed between the threads, providing strong adhesion and vibration resistance, ensuring the stability and firmness of the components.
[0033] Secondly, the paraffin wax and glue mixed liquid can form a protection for the outer ring after cooling. The anti-corrosion property can protect the bolts from environmental influences, extend their service life, improve the strength of the bolt connection, and reduce the risk of loosening under vibration and impact. At the same time, another connection method is to connect the steel beam with the bolt through. When the through connection is used, a double nut structure is used for anti-loosening treatment. At the same time, the inner wall of the anti-loosening nut 9 is designed with an anti-loosening card 10, which is cut with the thread to prevent the through-type bolt from having an anti-loosening structure;
[0034] Finally, when the steel beams are connected by bolts, a double-layer wedge structure is designed on the bolts, which significantly increases the anti-vibration effect of the bolts. The fixed wedge ring 2 and the wedge gasket 7 are connected by mutual engagement, and the right-angle protrusions set on the outside of the fixed wedge ring 2 are used to quickly position and dock the wedge gasket 7. At the same time, the fixed wedge ring 2 and the wedge gasket 7 can be tightened with bolts even when subjected to severe vibration and dynamic loads, making the structures more secure.
[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A steel beam bolt with an anti-loosening function, comprising a hexagonal nut (1), characterized in that: The top of the hexagonal nut (1) is fixedly connected to a fixed wedge ring (2), the top of the fixed wedge ring (2) is fixedly connected to a screw (3), a groove (4) is provided inside the screw (3), a glue bead (5) is provided inside the groove (4), a diversion hole (6) is provided at one end of the screw (3), a wedge-shaped gasket (7) is provided outside the screw (3), a fastening nut (8) is threadedly connected to the outer wall of the screw (3), and an anti-slip nut (9) is threadedly connected to the outer wall of the screw (3).
2. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: A straight groove is provided at the bottom of the hexagonal nut (1), and the channel (4) passes through the screw rod (3) and is connected to the straight groove.
3. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: The outer wall of the fixed wedge ring (2) is configured to be tooth-shaped, and the outer wall of the fixed wedge ring (2) is provided with four right-angled butt teeth, and the fixed wedge ring (2) and the wedge-shaped gasket (7) are meshed with each other.
4. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: A plurality of groups of glue bursting beads (5) are arranged inside the groove (4), and the interior of the groove (4) is filled with paraffin filler.
5. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: The size of the fastening nut (8) is smaller than the size of the anti-slip nut (9), and the inner diameters of the openings of the fastening nut (8) and the anti-slip nut (9) are the same, and both are hexagonal nuts.
6. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: An anti-loosening card (10) is provided on the inner wall of the anti-loosening nut (9), and the anti-loosening card (10) is engaged with the thread of the screw rod (3).
7. The steel beam bolt with anti-loosening function according to claim 1, characterized in that: The installation position of the fastening nut (8) is located above the anti-slip nut (9), and the other end of the screw rod (3) is in a prism shape.
Citation Information
Patent Citations
A single-sided connecting bolt for steel beams and steel pipe columns
CN106400958B
Cited By
Anti-loose mechanical connection system and construction method
CN121760456A