Bolt for tunnel lamp connection

Abstract

The utility model discloses a bolt for tunnel lamp connection, which comprises a bolt head, a bolt column, a fixing plate, a vertical hole, a limiting structure, a limiting nail head, a limiting nail body, a limiting nail point, a transverse hole and a fixing structure, the bottom of the bolt head is fixedly connected with the bolt column, and the middle of the fixing plate is provided with a hole. The fixing plate is installed at the joint of the bolt head and the bolt column through the hole, vertical holes are symmetrically formed in the two sides of the interior of the fixing plate, the two vertical holes both penetrate through the exterior of the fixing plate, limiting structures are arranged in the vertical holes, and each limiting structure comprises a limiting nail head, a limiting nail body and a limiting nail point. The bottom of the limiting nail head is fixedly connected with a limiting nail body, the bottom of the limiting nail body is fixedly connected with a limiting nail point, the firmness and the looseness prevention performance of the lamp can be improved, the lamp is not prone to loosening and falling off when suffering from factors such as natural disasters, and the service life of the structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to the technical field of bolts for connecting tunnel lamps. Background Art

[0002] Tunnels are engineering structures buried in the ground. They are a form of human utilization of underground space. They can greatly reduce driving distance, improve driving efficiency, and enhance driving safety. At the same time, they also play a significant role in protecting the natural environment. Since tunnels are in a semi-closed state, tunnel lighting plays an important role. It is mainly to solve the black hole effect or white hole effect caused by the sudden change of brightness when vehicles enter or exit the tunnel, which is one of the key factors in reducing driving risks.

[0003] However, existing tunnel lamps are usually fixed with bolts. In order to prevent the bolts from loosening, a washer is usually added between the bolts and the mounting surface to reduce vibration and prevent the bolts from loosening. However, this method has an unsatisfactory anti-loosening effect during long-term use, and the anti-loosening effect is reduced, resulting in poor performance.

[0004] To solve the problems raised in the background technology, for example, application number CN201320330011.7 discloses an anti-loosening bolt, which includes a body, a bolt head provided at the upper end of the body, a thread provided at the lower end of the body, and a fastening cap provided on the body below the bolt head. The fastening cap is conical and extends outward from the body, and the lower end of the fastening cap is provided with "wave-line" shaped anti-slip teeth. By providing the "wave-line" shaped anti-slip teeth on the lower end surface of the fastening cap having an anti-slip function on the bolt, the friction between the bolt head and the mating surface is enhanced, thereby improving the fastening performance of the bolt and improving the anti-loosening effect. However, this structure still has the following defects:

[0005] Although this structure uses anti-slip teeth to increase the friction area between the bolt head and the mating surface, since tunnel lamps are installed outside the wall for a long time, they are vulnerable to external natural disasters and other factors. Relying solely on anti-slip teeth cannot play a tightening role, and it will still cause the lamps to fall off, thereby shortening the service life of the lamps. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems in the prior art and to propose bolts for connecting tunnel lamps, which can improve the firmness and anti-loosening properties of the lamps, making it less likely for the lamps to loosen or fall off when affected by natural disasters and other factors, thereby extending the service life of the structure.

[0007] To achieve the above object, the present utility model provides a bolt for connecting tunnel lamps, which includes a bolt head, a bolt column, a fixing plate, vertical holes, a limiting structure, a limiting nail head, a limiting nail body, a limiting nail tip, horizontal holes, and a fixing structure. The bottom of the bolt head is fixedly connected to the bolt column. A hole is provided in the middle of the fixing plate, and the fixing plate is installed at the connection of the bolt head and the bolt column through the hole. Vertical holes are symmetrically arranged on both sides inside the fixing plate, and both of the vertical holes penetrate through the outside of the fixing plate. Limiting structures are arranged in the vertical holes. The limiting structure includes a limiting nail head, a limiting nail body, and a limiting nail tip. The bottom of the limiting nail head is fixedly connected to the limiting nail body, and the bottom of the limiting nail body is fixedly connected to the limiting nail tip. The limiting nail tip is used for inserting into the wall surface. Horizontal holes are symmetrically arranged on both sides inside the fixing plate, and both of the horizontal holes communicate with the vertical holes. Fixing structures are arranged in the horizontal holes.

[0008] Preferably, the fixing structure includes a moving block, a connecting rod, a spring, and a fixing block. One side of the moving block is connected to the connecting rod. A spring is sleeved outside the connecting rod. One end of the connecting rod is connected to the fixing block.

[0009] Preferably, the other side of the moving block has an inclined surface structure, and the moving block is used in cooperation with the limiting nail tip through the inclined surface.

[0010] Preferably, fixing holes are symmetrically arranged on both sides inside the bolt column, and both of the fixing holes are adapted to the fixing blocks.

[0011] Preferably, a plurality of anti-slip teeth are provided on the bottom end surface of the fixing plate, and the plurality of anti-slip teeth are distributed parallel to each other.

[0012] Preferably, the outer surfaces of the bolt head, the bolt column, and the limiting nail head are all coated with anti-corrosion glue.

[0013] The beneficial effects of the present utility model:

[0014] 1. With the combined use of the limiting structure and the fixing structure, the firmness and anti-loosening property of the lamp are greatly improved. First, the bolt column is passed through the fixing plate and screwed into the previously drilled installation hole, thus completing the preliminary fixing of the lamp. Then, an external tool is used to rotate the limiting nail head, which drives the limiting nail body to descend. The limiting nail body drives the limiting nail tip to descend in the vertical hole. During the descent of the limiting nail tip, it contacts the inclined surface of the moving block, causing the moving block to move towards the bolt column. At the same time, the spring contracts and drives the fixing block to embed into the fixing hole on the bolt column, thereby completing the locking and fixing of the fixing plate and the bolt. Subsequently, the limiting nail head is continuously rotated until the limiting nail tip passes through the vertical hole and embeds into the wall, further fixing the fixing plate and the lamp, thus achieving the locking effect, making it difficult for the lamp and the bolt to break away from the wall surface, improving the firmness and anti-loosening property of the lamp, extending the service life of this structure, and solving the problem that the lamp will still fall off when the bolt is affected by external natural disasters and other factors;

[0015] 2. The utility model is coated with anti-corrosion glue, which has the characteristics of high hardness, high strength, low water absorption rate, etc., providing good protection and anti-corrosion performance for the bolt head, bolt column, and limiting nail head, making it difficult for the bolt head, bolt column, and limiting nail head to rust during long-term use, thereby extending the service life of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the bolt for connecting tunnel lamps of the utility model;

[0017] Figure 2 is the sectional view of the bolt for connecting tunnel lamps of the utility model

[0018] Figure 3 is the sectional view of the fixing plate of the bolt for connecting tunnel lamps of the utility model

[0019] In the figure: 1 - bolt head, 2 - bolt column, 3 - fixing plate, 4 - vertical hole, 5 - limiting structure, 51 - limiting nail head, 52 - limiting nail body, 53 - limiting nail tip, 6 - horizontal hole, 7 - fixing structure, 71 - moving block, 72 - connecting rod, 73 - spring, 74 - fixing block, 8 - fixing hole, 9 - anti-slip teeth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Refer to Figures 1 to 3The utility model is a bolt for connecting tunnel lamps, comprising a bolt head 1, a bolt column 2, a fixing plate 3, a vertical hole 4, a limiting structure 5, a limiting nail head 51, a limiting nail body 52, a limiting nail tip 53, a transverse hole 6, and a fixing structure 7. The bottom of the bolt head 1 is fixedly connected to the bolt column 2, a hole is provided in the middle of the fixing plate 3, and the fixing plate 3 is installed at the connection between the bolt head 1 and the bolt column 2 through the hole. Vertical holes 4 are symmetrically provided on both sides of the interior of the fixing plate 3. Both vertical holes 4 pass through the exterior of the fixing plate 3. A limiting structure 5 is provided in each of the vertical holes 4. The limiting structure 5 It includes a limiting nail head 51, a limiting nail body 52, and a limiting nail tip 53. The bottom of the limiting nail head 51 is fixedly connected to the limiting nail body 52, and the bottom of the limiting nail body 52 is fixedly connected to the limiting nail tip 53. The limiting nail tip 53 is used to be inserted into the wall. The interior of the fixing plate 3 is symmetrically provided with horizontal holes 6 on both sides. The two horizontal holes 6 are communicated with the vertical holes 4. A fixing structure 7 is provided in the horizontal holes 6. By rotating the limiting nail head 51 until the limiting nail tip 53 passes through the vertical hole 4 and is embedded in the wall, the fixing plate 3 and the lamp are further fixed, thereby achieving a locking effect.

[0021] See Figure 2 and Figure 3 , the utility model tunnel lamp connecting bolt, the fixing structure 7 includes a moving block 71, a connecting rod 72, a spring 73, and a fixing block 74. One side of the moving block 71 is connected to the connecting rod 72, the outer sleeve of the connecting rod 72 is provided with a spring 73, and one end of the connecting rod 72 is connected to the fixing block 74. The moving block 71 is used in conjunction with the limiting nail tip 53 through an inclined surface. When the limiting nail tip 53 contacts the inclined surface of the moving block 71 during the descending process, the moving block 71 moves toward the bolt column 2. At the same time, the spring 73 contracts and drives the fixing block 74 to be embedded in the fixing hole 8 on the bolt column 2, thereby completing the locking and fixing of the fixing plate 3 and the bolt.

[0022] See Figure 2 and Figure 3 The utility model tunnel lamp connecting bolt has fixing holes 8 symmetrically arranged on both sides of the inner side of the bolt column 2 , and both fixing holes 8 are adapted to the fixing block 74 .

[0023] See Figure 2 The utility model is a bolt for connecting tunnel lamps. The bottom end surface of the fixing plate 3 is provided with a plurality of anti-slip teeth 9. The anti-slip teeth 9 are distributed parallel to each other. By providing the anti-slip teeth 9, the limiting nail tip 53 drives the anti-slip teeth 9 to be embedded into the wall synchronously during the process of embedding into the wall, thereby further increasing the contact area between the fixing plate 3 and the installation surface, making it difficult for the fixing plate 3 to rotate.

[0024] See Figures 1 to 3, the bolt for connecting tunnel lamps of the present utility model, the outer surfaces of the bolt head 1, the bolt column 2, and the limit nail head 51 are all coated with anti-corrosion glue. The anti-corrosion glue has characteristics such as high hardness, high strength, and low water absorption rate, providing good protection and anti-corrosion performance for the bolt head 1, the bolt column 2, and the limit nail head 51, so that the bolt head 1, the bolt column 2, and the limit nail head 51 are not prone to rust during long-term use, thereby extending the service life of this structure.

[0025] Working process of the present utility model:

[0026] During the working process of the bolt for connecting tunnel lamps of the present utility model, first, the bolt column 2 is passed through the fixing plate 3 and screwed into the pre-drilled installation hole, thereby completing the preliminary fixation of the lamp. Then, the limit nail head 51 is rotated by an external tool. The limit nail head 51 drives the limit nail body 52 to descend, and the limit nail body 52 drives the limit nail tip 53 to descend in the vertical hole 4. During the descent of the limit nail tip 53, it contacts the inclined surface of the moving block 71, causing the moving block 71 to move towards the bolt column 2. At the same time, the spring 73 contracts and drives the fixing block 74 to be embedded into the fixing hole 8 on the bolt column 2, thereby completing the locking and fixing of the fixing plate 3 and the bolt. Subsequently, the limit nail head 51 is continuously rotated until the limit nail tip 53 passes through the vertical hole 4 and is embedded into the wall, thereby completing the further fixation of the fixing plate 3 and the lamp, thus achieving the locking effect. When disassembly is required, the limit nail head 51 is rotated in the reverse direction, thereby driving the limit nail tip 53 to rise. After the limit nail tip 53 is taken out, the spring 73 resets, thereby driving the moving block 71 to move, causing the fixing block 74 to be disengaged from the fixing hole 8, thereby completing the disassembly. By setting the anti-corrosion glue, the anti-corrosion glue has characteristics such as high hardness, high strength, and low water absorption rate, providing good protection and anti-corrosion performance for the bolt head 1, the bolt column 2, and the limit nail head 51, so that the bolt head 1, the bolt column 2, and the limit nail head 51 are not prone to rust during long-term use, thereby extending the service life of this structure.

[0027] The above embodiments are illustrative of the present utility model, not restrictive of the present utility model. Any simple transformation of the present utility model belongs to the protection scope of the present utility model.

Claims

1. Bolts for connecting tunnel lamps, characterized by: The invention comprises a bolt head (1), a bolt column (2), a fixing plate (3), a vertical hole (4), a limiting structure (5), a limiting nail head (51), a limiting nail body (52), a limiting nail tip (53), a transverse hole (6), and a fixing structure (7). The bottom of the bolt head (1) is fixedly connected to the bolt column (2). A hole is provided in the middle of the fixing plate (3). The fixing plate (3) is installed at the connection between the bolt head (1) and the bolt column (2) through the hole. Vertical holes (4) are symmetrically provided on both sides of the interior of the fixing plate (3). The two vertical holes (4) both pass through the outer surface of the fixing plate (3). The vertical holes (4) are each provided with a limiting structure (5), the limiting structure (5) comprising a limiting nail head (51), a limiting nail body (52), and a limiting nail tip (53), the bottom of the limiting nail head (51) is fixedly connected to the limiting nail body (52), the bottom of the limiting nail body (52) is fixedly connected to the limiting nail tip (53), the limiting nail tip (53) is used to be inserted into the wall surface, and the interior of the fixing plate (3) is symmetrically provided with transverse holes (6), the two transverse holes (6) are both communicated with the vertical holes (4), and the transverse holes (6) are each provided with a fixing structure (7).

2. The tunnel lighting fixture connecting bolt according to claim 1, characterized in that: The fixed structure (7) comprises a moving block (71), a connecting rod (72), a spring (73), and a fixed block (74); one side of the moving block (71) is connected to the connecting rod (72); the spring (73) is sleeved on the outside of the connecting rod (72); and one end of the connecting rod (72) is connected to the fixed block (74).

3. The tunnel lighting fixture connecting bolt according to claim 2, characterized in that: The other side of the moving block (71) is in an inclined surface structure, and the moving block (71) is used in conjunction with the limiting nail tip (53) via the inclined surface.

4. The tunnel lighting fixture connecting bolt according to claim 2, wherein: Fixing holes (8) are symmetrically provided on both sides of the interior of the bolt column (2), and both fixing holes (8) are adapted to the fixing block (74).

5. The tunnel lighting fixture connecting bolt according to claim 1, wherein: The bottom end surface of the fixed plate (3) is provided with a plurality of anti-slip teeth (9), and the plurality of anti-slip teeth (9) are distributed parallel to each other.

6. The tunnel lighting fixture connecting bolt according to any one of claims 1 to 5, characterized in that: The outer surfaces of the bolt head (1), the bolt column (2), and the limiting nail head (51) are all coated with anti-corrosion glue.

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