Anti-loosening device for steel pipe pole
By setting up a loosening plate and a fixed chassis on the flange of the steel pipe rod, combined with a self-locking nut and a spring washer, the problem of bolt loosening is solved, and the stable connection and safety improvement of the steel pipe rod is achieved.
Patent Information
- Application Number
- CN202422513382.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-17
AI Technical Summary
During the long-term service of existing steel pipe rods, due to the alternating stress, the bolts are prone to loosening, causing safety hazards.
The anti-loosening plate is installed on the flange of the steel pipe rod. The anti-loosening plate is equipped with a fixing groove in which the fixed column matches the bolt head, and is fixed by snapping and fixing chassis to prevent the bolt from shaking, and combine the self-locking nut and spring washer to increase the tightening force.
Effectively prevent bolts from loosening, improve the structural stability of steel pipe rods, avoid safety hazards caused by loose bolts, and extend the service life of connecting bolts.
Smart Images

Figure CN223203466U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipes, in particular to an anti-loosening device for steel pipe rods. Background Art
[0002] Steel pipe poles usually refer to poles with steel pipes as the main body, which are mostly used to support facilities such as power and communication lines. Steel pipe poles have many advantages, such as high strength and stability, and can withstand large loads; steel pipe poles are easy to process and install, and can meet the needs of different shapes and sizes; after anti-corrosion treatments such as galvanizing, steel pipe poles will also have good corrosion resistance.
[0003] Currently, flange connections are the most common method for connecting steel pipe rods. When flange connections are used, the upper and lower sections of the steel pipe rod are connected by bolts and nuts, thus connecting the sections into a single unit. However, due to the alternating stresses that steel pipe rods experience over long periods of service, bolts can become loose under these alternating stresses. This loosening of bolts is a significant safety hazard, and once disengaged, it can cause unpredictable damage to surrounding personnel and buildings. Therefore, bolt loosening must be avoided. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides an anti-loosening device for a steel pipe rod to prevent bolts from loosening, thereby reducing the potential safety hazards caused by the loosening of bolts during the use of the steel pipe rod.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-loosening device for a steel pipe rod, comprising a steel pipe and an anti-loosening assembly, flanges are provided at both ends of the steel pipe, and the flanges are fixed by connecting bolts, the anti-loosening assembly comprises an anti-loosening disk, a steel pipe opening with the same diameter as the steel pipe is provided on the top surface of the anti-loosening disk, a fixing column is provided inside the anti-loosening disk, and a bolt fixing groove corresponding to the head of the connecting bolt is provided on the bottom surface of the fixing column.
[0006] Furthermore, the anti-loosening disk is symmetrically divided into two parts from the middle, and an anti-loosening disk buckle is provided in one side of the anti-loosening disk at the split position, and an anti-loosening disk buckle groove block corresponding to the anti-loosening disk buckle is symmetrically provided in the other side.
[0007] Furthermore, a fixed chassis is provided below the anti-loosening disk, an annular groove block is provided on the top surface of the fixed chassis, a fixed annular plate corresponding to the annular groove block is provided on the side surface of the bottom end of the anti-loosening disk, and a bottom shell opening with the same diameter as the steel pipe is opened on the bottom surface of the fixed chassis.
[0008] Furthermore, the fixed chassis is symmetrically cut into two parts from the middle, one end of the fixed chassis bottom surface at the cut position is provided with a chassis buckle, and the other end is symmetrically provided with a chassis buckle slot block corresponding to the buckle.
[0009] Furthermore, the anti-loosening plate is provided with a waterproof ring at the steel pipe opening, and the fixed chassis is provided with a chassis waterproof ring at the chassis opening.
[0010] Furthermore, an external threaded tube with the same internal diameter is provided at the top of the steel tube, and a thread groove corresponding to the external threaded tube is opened inside the lower end of the steel tube.
[0011] Furthermore, the flange is provided with connecting holes corresponding to the connecting bolts, the connecting bolts cooperate with the connecting nuts, a spring washer is provided between the connecting bolts and the connecting nuts, and the connecting nuts are self-locking nuts.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. By setting an anti-loosening plate on the flange of the steel pipe, the anti-loosening plate uses the fixing groove on the bottom surface of its fixing column that matches the bolt head. After the steel pipe is connected, the fixing groove can be fitted with the fixing bolt. Because there are multiple fixing bolts and the corresponding fixing groove shape is fixed, after the two are fitted, the fixing groove can limit the shaking of the fixing bolt, effectively protecting the stability of the structure.
[0014] 2. By utilizing the cooperation of the annular groove plate and the fixed annular plate, we can connect the fixed chassis with the anti-loosening plate, so that the anti-loosening plate can be fixed on the flange to prevent the anti-loosening plate from being blown off by external factors such as shaking and strong wind, so that the anti-loosening plate will not be damaged or lost, thereby preventing the bolts from loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after being cut apart as a whole;
[0017] Figure 3 This is a schematic diagram of the enlarged three-dimensional structure of point A of the present invention;
[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the steel pipe connection of the utility model;
[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the protective component of the utility model after being cut open.
[0020] In the figure: 1. Steel pipe rod; 101. Externally threaded pipe; 102. Threaded groove; 2. Anti-loosening assembly; 201. Anti-loosening disk; 202. Steel pipe mouth; 203. Fixed column; 204. Bolt fixing groove; 205. Anti-loosening disk buckle; 206. Anti-loosening disk buckle slot block; 207. Fixed chassis; 208. Annular slot block; 209. Fixed annular plate; 210. Chassis mouth; 211. Chassis buckle; 212. Chassis buckle slot block; 213. Anti-loosening disk waterproof ring; 214. Chassis waterproof ring; 3. Flange; 301. Connecting bolt; 302. Connecting hole; 303. Connecting nut; 304. Spring washer. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0022] like Figures 1 to 5 As shown, a loosening prevention device for a steel pipe rod includes a steel pipe rod 1 and an anti-loosening assembly 2. Flanges 3 are provided at both ends of the steel pipe rod 1, and the flanges 3 are fixed by connecting bolts 301. The anti-loosening assembly 2 includes an anti-loosening disk 201. The top surface of the anti-loosening disk 201 is provided with a steel pipe opening 202 with the same diameter as the steel pipe rod 1. A fixing column 203 is provided in the anti-loosening disk 201, and the bottom surface of the fixing column 203 is provided with a bolt fixing groove 204 corresponding to the head of the connecting bolt 301.
[0023] The main improvement of the present invention is to prevent the bolt from loosening and fix the anti-loosening component. Figures 1 to 5As shown, a steel pipe rod anti-loosening device in the present invention, during use, first, multiple steel pipe rods 1 are connected together through the cooperation of the external threaded tube 101 and the thread groove 102, and the flange 3 is fitted, the connecting holes on the flange 3 can be aligned, and then the steel pipe rod 1 is fixed into a rigid whole by the connecting bolt 301 and the connecting nut 303. At this time, the anti-loosening disk 201 is taken out and disassembled into two halves, and the steel pipe mouth 202 of the anti-loosening disk 201 is fitted with the steel pipe rod 1 above the flange 3, and the anti-loosening disk 201 is combined into a whole through the cooperation of the anti-loosening disk buckle 205 and the anti-loosening disk buckle groove block 206; at this time, the anti-loosening disk The disk 201 moves downward so that all the bolt fixing grooves 204 coincide with the heads of the fixing bolts. At this time, the fixing grooves can limit the shaking of the fixing bolts, effectively protecting the stability of the structure; then the fixed chassis 207 is taken out and disassembled, and the annular groove block 208 on the fixed chassis 207 is fitted with the fixed annular plate 209 on the anti-loosening disk 201, and the flange 3 is fixedly connected between the fixed chassis 207 and the anti-loosening disk 201 through the cooperation of the chassis buckle 211 and the chassis buckle groove block 212 to prevent the anti-loosening disk 201 from being blown off by external factors such as shaking and strong wind, so that the anti-loosening disk 201 will not be damaged or lost, thereby preventing the bolts from loosening.
[0024] like Figure 2 and Figure 5 As shown, the anti-loosening disk 201 is symmetrically cut into two parts from the middle, and an anti-loosening disk buckle 205 is set in one side of the anti-loosening disk 201 at the cut position, and an anti-loosening disk buckle groove block 206 corresponding to the anti-loosening disk buckle 205 is symmetrically set in the other side.
[0025] Specifically, the anti-loosening disk 201 is divided into two halves, and a buckle and a buckle groove are provided on the inner side of the anti-loosening disk 201, so that the anti-loosening disk 201 can be installed and removed at any time, which is convenient for operators to operate.
[0026] like Figure 2 and Figure 5 As shown, a fixed chassis 207 is provided below the anti-loosening disk 201, an annular groove block 208 is provided on the top surface of the fixed chassis 207, a fixed annular plate 209 corresponding to the annular groove block 208 is provided on the side surface of the bottom end of the anti-loosening disk 201, and a chassis opening 210 with the same diameter as the steel pipe rod 1 is opened on the bottom surface of the fixed chassis 207.
[0027] like Figure 2 and Figure 5 As shown, the fixed chassis 207 is symmetrically cut into two parts from the middle, and a chassis buckle 211 is provided at one end of the cut bottom surface of the fixed chassis 207 , and a chassis buckle slot block 212 corresponding to the buckle 211 is symmetrically provided at the other end.
[0028] Specifically, the fixed chassis 207 is divided into two halves, and buckles and buckle grooves are provided on the bottom surface of the fixed chassis 207, so that the fixed chassis 207 can be installed and removed at any time, which is convenient for operators to operate.
[0029] like Figure 5 As shown, the anti-loosening disk 201 is provided with an anti-loosening disk waterproof ring 213 at the steel pipe opening 202, and the fixed chassis 207 is provided with a chassis waterproof ring 214 at the chassis opening 210.
[0030] Specifically, providing a waterproof ring at the joint with the steel pipe rod 1 can prevent rainwater from entering the anti-loosening disk 201, protecting the connection of the steel pipe rod 1, that is, preventing rainwater from corroding the flange 3 and the connecting bolt 301, and extending the service life of the connecting bolt 301.
[0031] like Figure 4 As shown, an external threaded tube 101 with the same internal diameter is provided on the top surface of the steel pipe rod 1, and a thread groove 102 corresponding to the external threaded tube 101 is opened inside the lower end of the steel pipe rod 1.
[0032] Specifically, through the cooperation between the external threaded tube 101 and the thread groove 102, the steel pipe rods 1 can obtain better connection stability when connected to each other, and it is convenient for operators to align the flanges 3 set at both ends of the steel pipe rods 1.
[0033] like Figure 2 and Figure 3 As shown, the flange 3 is provided with a connecting hole 302 corresponding to the connecting bolt 301 , the connecting bolt 301 cooperates with the connecting nut 303 , a spring washer 304 is provided between the connecting bolt 301 and the connecting nut 303 , and the connecting nut 303 is a self-locking nut.
[0034] Specifically, by arranging a spring washer 304 between the bolt and the nut, and replacing the nut with a self-locking nut, the tightening force of the bolt at the flange 3 can be increased, making the bolt less likely to loosen.
[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An anti-loosening device for a steel pipe rod, comprising a steel pipe rod (1) and an anti-loosening assembly (2), wherein flanges (3) are provided at both ends of the steel pipe rod (1), and the flanges (3) are fixed by connecting bolts (301), characterized in that: The anti-loosening assembly (2) includes an anti-loosening disk (201), the top surface of which is provided with a steel pipe opening (202) having the same diameter as the steel pipe rod (1), a fixing column (203) provided inside the anti-loosening disk (201), and the bottom surface of the fixing column (203) is provided with a bolt fixing groove (204) corresponding to the head of the connecting bolt (301); The anti-loosening disk (201) is symmetrically split into two parts from the middle, and an anti-loosening disk buckle (205) is provided in one side of the anti-loosening disk (201) at the split position, and an anti-loosening disk buckle slot block (206) corresponding to the anti-loosening disk buckle (205) is symmetrically provided in the other side.
2. The anti-loosening device for steel pipe rod according to claim 1, characterized in that: A fixed chassis (207) is provided below the anti-loosening disk (201), an annular groove block (208) is provided on the top surface of the fixed chassis (207), a fixed annular plate (209) corresponding to the annular groove block (208) is provided on the side surface of the bottom end of the anti-loosening disk (201), and a chassis opening (210) having the same diameter as the steel pipe rod (1) is opened on the bottom surface of the fixed chassis (207).
3. The anti-loosening device for steel pipe rod according to claim 2, characterized in that: The fixed chassis (207) is symmetrically cut into two parts from the middle, and a chassis buckle (211) is provided at one end of the cut bottom surface of the fixed chassis (207), and a chassis buckle slot block (212) corresponding to the buckle (211) is symmetrically provided at the other end.
4. The anti-loosening device for steel pipe rod according to claim 2, characterized in that: The anti-loosening disc (201) is provided with an anti-loosening disc waterproof ring (213) at the steel pipe opening (202), and the fixed chassis (207) is provided with a chassis waterproof ring (214) at the chassis opening (210).
5. The anti-loosening device for steel pipe rod according to claim 1, characterized in that: The top surface of the steel pipe rod (1) is provided with an external threaded tube (101) having the same internal diameter as the external threaded tube (101), and the lower end of the steel pipe rod (1) is provided with a thread groove (102) corresponding to the external threaded tube (101).
6. The anti-loosening device for steel pipe rod according to claim 1, characterized in that: The flange (3) is provided with a connecting hole (302) corresponding to the connecting bolt (301), the connecting bolt (301) cooperates with the connecting nut (303), a spring washer (304) is provided between the connecting bolt (301) and the connecting nut (303), and the connecting nut (303) is a self-locking nut.