Road comb tooth type expansion joint device with anti-loosening function

Abstract

The utility model relates to the technical field of highway engineering, in particular to a highway comb tooth type expansion joint device with an anti-loosening function, which comprises an auxiliary comb tooth type steel plate and a main comb tooth type steel plate, and an embedded mechanism is mounted on one side, opposite to the main comb tooth type steel plate, of the auxiliary comb tooth type steel plate. Mounting grooves are formed in the sides, opposite to the main comb-tooth-shaped steel plates, of the auxiliary comb-tooth-shaped steel plates, and reinforcing and positioning mechanisms are installed at the tops of the auxiliary comb-tooth-shaped steel plates and the tops of the main comb-tooth-shaped steel plates in a penetrating mode. Through the arrangement of the reinforcing and positioning mechanism and the pre-embedding mechanism, the anti-loosening and reinforcing effects are achieved, nailing installation can be achieved through the obliquely-arranged screw rod, stress is differentiated when the screw rod is subjected to vertical or transverse vibration, the abutting anti-skid ring and the spring elastically support the hexagonal groove base, the friction force needing to be overcome by rotation of the screw rod is increased, and the anti-loosening and anti-loosening effects are achieved. And when the pin block is pinned in, the anti-loosening performance of the screw rod is further ensured, and the aim of fastening and mounting the device can be achieved by matching with an embedded mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering, in particular to a highway comb-tooth type expansion joint device with an anti-loosening function. Background Art

[0002] In highway engineering, in order to adapt to temperature changes, concrete shrinkage and creep, and the longitudinal displacement of the bridge superstructure under vehicle loads, expansion joints are generally installed. Among them, comb-tooth expansion joints are widely used due to their large expansion amount, smooth and comfortable driving, wide range of applications and low installation height.

[0003] After searching, the patent announcement number is: CN210946475U, and the name is a utility model of a comb-tooth type expansion joint device for a bridge with an anti-loosening function, including a movable comb-tooth plate arranged on the top surface of the movable beam end. Through research and analysis, it is found that although any loosening tendency of the nut is blocked by the wedging effect of the large serrations, thereby preventing the loosening of the nut and effectively protecting the fixation of the comb-tooth plate and the beam body, the following disadvantages still exist to a certain extent.

[0004] For example, the device is reinforced and installed in the form of nuts, anti-loosening washers and U-bolts. This method makes the connection between the nut and the bolt still vertical. Impact vibration will have a greater impact on the nut. It does not have the function of differentiated tightening and has certain limitations. In order to solve the above technical problems, we have designed a highway comb-tooth expansion joint device with anti-loosening function. Utility Model Content

[0005] The purpose of the utility model is to provide a highway comb-tooth expansion joint device with an anti-loosening function, which has the advantages of differentiated fastening and solves the problem that the connection between the nut and the bolt of the device is still a vertical design, the impact vibration will have a greater impact on the nut, and the device does not have a differentiated fastening function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highway comb-tooth expansion joint device with an anti-loosening function, comprising a secondary comb-tooth steel plate and a main comb-tooth steel plate, wherein a pre-embedded mechanism is installed on the side of the secondary comb-tooth steel plate opposite to the main comb-tooth steel plate, and an installation groove is provided on the side of the secondary comb-tooth steel plate opposite to the main comb-tooth steel plate, and a reinforcing positioning mechanism is installed through the top of the secondary comb-tooth steel plate and the main comb-tooth steel plate, and the reinforcing positioning mechanism is arranged at an angle.

[0007] Preferably, the reinforcing positioning mechanism comprises a receiving groove, and the receiving groove is respectively opened on the top of the auxiliary comb-tooth type steel plate and the main comb-tooth type steel plate, and a screw hole is opened at the bottom of the inner cavity of the receiving groove.

[0008] Preferably, the inner cavity of the screw hole is threadedly connected to a screw rod, the top of the screw rod and the inner cavity of the receiving groove are fixedly connected to a hexagonal slot seat, and a clamping slot is provided on the outer side of the hexagonal slot seat.

[0009] Preferably, a spring is fixedly connected to the bottom of the inner cavity of the storage groove, a pressing and anti-slip ring is fixedly connected to the top of the spring, and the top of the pressing and anti-slip ring contacts the bottom of the hexagonal groove seat.

[0010] Preferably, a pin groove is provided on the inner wall of the receiving groove, and a pin block is installed through the inner cavity of the pin groove.

[0011] Preferably, the embedded mechanism comprises a connecting block, and the connection between the connecting block and the auxiliary comb-tooth-shaped steel plate and the connection between the connecting block and the main comb-tooth-shaped steel plate are both fixedly connected.

[0012] Preferably, anchoring steel bars are fixedly connected to the front surface and the back surface of the connection block, and a reinforcement column is fixedly connected between two adjacent anchoring steel bars.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model has the advantages of anti-loosening and reinforcement by arranging a reinforcing positioning mechanism and a pre-embedded mechanism, and can utilize an inclined screw rod to be nailed in for installation. When the screw rod is subjected to vertical or horizontal vibration, the force is differentiated, and the anti-slip ring and the spring are pressed to elastically support the hexagonal groove seat, thereby increasing the friction force to be overcome by the rotation of the screw rod. When the pin block is pinned in, the anti-loosening performance of the screw rod is further guaranteed, and the purpose of fastening and installing the device can be achieved by cooperating with the pre-embedded mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a bottom-up stereogram of the structure of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the utility model when the fixing positioning mechanism is separated;

[0018] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram.

[0019] In the figure: 1. Auxiliary comb-tooth steel plate; 2. Reinforced positioning mechanism; 201. Pin block; 202. Hexagonal slot seat; 203. Slot; 204. Pin slot; 205. Anti-slip ring; 206. Spring; 207. Screw hole; 208. Storage slot; 209. Screw; 3. Main comb-tooth steel plate; 4. Installation slot; 5. Embedded mechanism; 501. Connection block; 502. Anchor steel bar; 503. Reinforcement column. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4 A highway comb-tooth expansion joint device with anti-loosening function comprises a secondary comb-tooth steel plate 1 and a main comb-tooth steel plate 3, a pre-embedded mechanism 5 is installed on the side of the secondary comb-tooth steel plate 1 opposite to the main comb-tooth steel plate 3, a mounting groove 4 is opened on the side of the secondary comb-tooth steel plate 1 opposite to the main comb-tooth steel plate 3, and a reinforcing positioning mechanism 2 is installed through the top of the secondary comb-tooth steel plate 1 and the main comb-tooth steel plate 3;

[0021] See also Figure 1 , Figure 3 and Figure 4 The reinforcing positioning mechanism 2 includes a receiving groove 208, which is respectively opened on the top of the auxiliary comb-tooth steel plate 1 and the main comb-tooth steel plate 3, and a screw hole 207 is opened at the bottom of the inner cavity of the receiving groove 208;

[0022] See also Figure 1 , Figure 3 and Figure 4 The inner cavity of the screw hole 207 is threadedly connected with a screw rod 209, and the top of the screw rod 209 and the inner cavity of the receiving groove 208 are fixedly connected with a hexagonal groove seat 202, and a clamping groove 203 is opened on the outer side of the hexagonal groove seat 202;

[0023] See also Figure 1 , Figure 3 and Figure 4 The bottom of the inner cavity of the receiving groove 208 is fixedly connected with a spring 206, and the top of the spring 206 is fixedly connected with a pressing anti-slip ring 205, and the top of the pressing anti-slip ring 205 contacts the bottom of the hexagonal groove seat 202;

[0024] See also Figure 1 , Figure 3 and Figure 4 The inner wall of the receiving groove 208 is provided with a pin groove 204, and the inner cavity of the pin groove 204 is penetrated by a pin block 201;

[0025] See also Figure 1 and Figure 2 The embedded mechanism 5 includes a connecting block 501, and the connection between the connecting block 501 and the auxiliary comb-tooth steel plate 1 and the connection between the connecting block 501 and the main comb-tooth steel plate 3 are fixedly connected;

[0026] See also Figure 1 and Figure 2 , the front surface and the back surface of the connection block 501 are fixedly connected with anchoring steel bars 502, and a reinforcement column 503 is fixedly connected between two adjacent anchoring steel bars 502;

[0027] The reinforcement positioning mechanism 2 is tilted as a whole. This design can further improve the force differentiation when the screw rod 209 is subjected to up and down vibrations;

[0028] The inner diameter of the receiving groove 208 is larger than the inner diameter of the screw hole 207;

[0029] The top of the pin block 201 penetrates into the slot 203, and the plane where the top of the pin block 201 is located is the same plane as the plane where the top of the secondary comb-tooth steel plate 1 and the main comb-tooth steel plate 3 are located. This design can prevent the pin block 201 from protruding and affecting the normal driving of the vehicle.

[0030] The reinforcing positioning mechanism 2 and the embedded mechanism 5 are staggered. This design ensures that the embedded mechanism 5 and the reinforcing positioning mechanism 2 have an installed contact area, further improving the overall installation stability of the device and having better anti-loosening performance.

[0031] By providing the pin block 201, the slot 203 and the pin slot 204, a positioning and anti-rotation function can be achieved, so that when the pin block 201 is pinned in, the hexagonal slot seat 202 is prevented from rotating at will. By providing the hexagonal slot seat 202, an external hexagonal wrench can be used to drive the screw 209 to rotate.

[0032] By providing the anti-slip ring 205 and the spring 206, when the screw 209 is installed, the anti-slip ring 205 can generate resistance force on the hexagonal slot seat 202 due to the elastic support of the spring 206, thereby preventing the hexagonal slot seat 202 and the screw 209 from rotating at will;

[0033] By providing the screw hole 207 and the screw rod 209, a screw transmission function can be achieved. When the screw rod 209 is driven to rotate, the screw rod 209 can be synchronously displaced with the cooperation of the screw hole 207. By providing the receiving groove 208, the installation space requirements of the anti-slip ring 205 and the spring 206 can be met, and the storage space requirements of the hexagonal groove seat 202 can also be met.

[0034] By providing the installation groove 4, the installation space requirement of the waterproof and dustproof belt can be met, and by providing the reinforcement column 503, the two anchoring steel bars 502 can be fixedly connected, thereby further improving the overall stability of the embedded mechanism 5.

[0035] When in use, all components are in the initial state. A waterproof and dustproof belt is installed between the mounting groove 4 on the auxiliary comb-tooth steel plate 1 and the mounting groove 4 on the main comb-tooth steel plate 3. The embedded mechanism 5 is embedded in the road to ensure the stability of the device installation. Then, the screw 209 is screwed in to pass through the receiving groove 208 and is threadedly matched with the screw hole 207. The screw 209 is tilted and nailed in until the hexagonal groove seat 202 enters the receiving groove 208 and contacts the anti-slip ring 205. The spring 206 is compressed to provide an elastic reaction force for the hexagonal groove seat 202, increasing the hexagonal groove seat 202. The friction force that the slot seat 202 and the screw rod 209 need to overcome during rotation, and the angle of the hexagonal slot seat 202 is adjusted so that the card slot 203 is aligned with the pin slot 204. At this time, the installer uses a hammer installation tool to hit the pin block 201 into the card slot 203 and the pin slot 204 to prevent the hexagonal slot seat 202 and the screw rod 209 from rotating at will, thereby achieving a good anti-loosening protection effect. When the screw rod 209 is subjected to the vibration generated by the driving of the vehicle, its inclined setting feature can differentiate the vibration force in other directions, which is more in line with actual use requirements.

[0036] In summary: the highway comb-tooth expansion joint device with anti-loosening function, by setting a reinforcing positioning mechanism 2 and an embedded mechanism 5, solves the problem that the connection between the nut and the bolt of the device is still designed to be vertical, the impact vibration will have a greater impact on the nut, and it does not have a differentiated tightening function.

Claims

1. A highway comb-tooth expansion joint device with anti-loosening function, comprising a secondary comb-tooth steel plate (1) and a main comb-tooth steel plate (3), characterized in that: The side of the secondary comb-tooth steel plate (1) opposite to the main comb-tooth steel plate (3) is provided with an embedded mechanism (5); the side of the secondary comb-tooth steel plate (1) opposite to the main comb-tooth steel plate (3) is provided with an installation groove (4); the tops of the secondary comb-tooth steel plate (1) and the main comb-tooth steel plate (3) are penetrated by a reinforcing positioning mechanism (2); the reinforcing positioning mechanism (2) is arranged in an inclined manner.

2. A highway comb-tooth expansion joint device with anti-loosening function according to claim 1, characterized in that: The reinforcing positioning mechanism (2) comprises a receiving groove (208), wherein the receiving groove (208) is respectively opened on the top of the auxiliary comb-tooth-shaped steel plate (1) and the main comb-tooth-shaped steel plate (3), and a screw hole (207) is opened at the bottom of the inner cavity of the receiving groove (208).

3. A highway comb-tooth expansion joint device with anti-loosening function according to claim 2, characterized in that: The inner cavity of the screw hole (207) is threadedly connected to a screw rod (209), and the top of the screw rod (209) and the inner cavity of the receiving groove (208) are fixedly connected to a hexagonal groove seat (202), and a clamping groove (203) is provided on the outer side of the hexagonal groove seat (202).

4. A highway comb-tooth expansion joint device with anti-loosening function according to claim 3, characterized in that: A spring (206) is fixedly connected to the bottom of the inner cavity of the storage groove (208), and a pressure-resistance anti-slip ring (205) is fixedly connected to the top of the spring (206), and the top of the pressure-resistance anti-slip ring (205) contacts the bottom of the hexagonal groove seat (202).

5. A highway comb-tooth expansion joint device with anti-loosening function according to claim 4, characterized in that: The inner wall of the receiving groove (208) is provided with a pin groove (204), and a pin block (201) is installed through the inner cavity of the pin groove (204).

6. The highway comb-tooth expansion joint device with anti-loosening function according to claim 1, characterized in that: The embedded mechanism (5) comprises a connection block (501), and the connection between the connection block (501) and the auxiliary comb-tooth-shaped steel plate (1) and the connection between the connection block (501) and the main comb-tooth-shaped steel plate (3) are both fixedly connected.

7. A highway comb-tooth expansion joint device with anti-loosening function according to claim 6, characterized in that: Anchoring steel bars (502) are fixedly connected to the front and back surfaces of the connection block (501), and a reinforcement column (503) is fixedly connected between two adjacent anchoring steel bars (502).

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