Highway bridge expansion joint capable of keeping pavement flatness

Abstract

The utility model provides a highway bridge expansion joint capable of keeping pavement flatness, which relates to the technical field of highway bridges, and comprises a comb tooth component, the comb tooth component comprises a first comb tooth plate and a second comb tooth plate, and the first comb tooth plate and the second comb tooth plate are inserted together in a sliding manner. When dirt accumulated in a narrow gap between the first comb plate and the second comb plate needs to be cleaned, the fixing bolts on the connecting holes are removed, then the first comb plate is pushed, the first comb plate slides on the guide blocks and the fixing plate through the guide grooves, and finally the first comb plate is lifted upwards, so that the first comb plate is cleaned. After the first comb plate is detached from the fixing plate, dirt accumulated in a narrow gap between the first comb plate and the second comb plate can be cleaned, meanwhile, the first comb plate can be cleaned, and the device can effectively solve the problem that the dirt accumulated in the narrow gap between the first comb plate and the second comb plate is difficult to clean.

Description

Technical Field

[0001] This utility model relates to an expansion joint, specifically a highway bridge expansion joint that can maintain the smoothness of the road surface, and belongs to the field of highway bridge technology. Background Technology

[0002] Expansion joints in highway bridges are important structural features used to absorb bridge displacement or deformation caused by external factors such as temperature changes, vehicle loads, and seismic activity. They not only ensure the normal use of the bridge but also extend its lifespan.

[0003] In the existing technology, the structure of the comb-tooth expansion joint is usually composed of a series of metal parts with tooth-like shapes. The teeth are connected to each other by a plug-in method, which can effectively bear and absorb the displacement of the structure. The comb-tooth expansion joint can adapt to a large range of structural displacement and is particularly suitable for bridges and roads with large temperature differences and heavy loads.

[0004] In practical applications, it has been found that the design of comb-tooth expansion joints typically consists of multiple interlocking toothed plates with gaps between them. During use, dirt can easily accumulate in these gaps due to vehicle traffic or weather conditions. Because the gaps between the toothed plates of the comb-tooth expansion joint are relatively narrow, conventional cleaning tools have difficulty accessing these small spaces for thorough cleaning. Therefore, this paper proposes a highway bridge expansion joint that can maintain the smoothness of the road surface. Utility Model Content

[0005] This invention proposes a highway bridge expansion joint that can maintain the smoothness of the road surface and effectively solve the problem of dirt accumulating in the narrow gaps between the toothed plates, which is difficult to clean.

[0006] This utility model is achieved through the following technical solution: a highway bridge expansion joint that can maintain the smoothness of the road surface, including a comb assembly, the comb assembly including a first comb plate and a second comb plate, the first comb plate and the second comb plate being slidably inserted together, a sliding plate being fixed to the bottom of the first comb plate, the outer contour of the sliding plate being rectangular, a waterproof strip being fixed to the bottom of the sliding plate and the fixed plate, the middle part of the waterproof strip being arc-shaped, a first fixing hole being provided on the first comb plate, the first fixing hole penetrating the sliding plate and the waterproof strip.

[0007] The first comb plate is provided with a splicing mechanism, which includes a fixing plate and a first rectangular notch opened on the first comb plate. The fixing plate is provided with a second fixing hole that passes through the slide plate. The fixing plate is provided with a second rectangular notch. A limit plate is fixed on the right side of the fixing plate. A sealing strip and a guide block are fixed on the second rectangular notch.

[0008] A sealing gasket is fixed on the sealing strip, and the sealing gasket is in contact with the sealing groove. The limiting plate and the sealing strip are parallel to the width direction of the fixed plate, and the guide block is perpendicular to the width direction of the fixed plate.

[0009] The first rectangular notch has a limiting groove, a sealing groove, and a guide groove. The sealing groove and the limiting groove are parallel to the width direction of the fixing plate, and the guide groove is perpendicular to the width direction of the fixing plate. The first comb plate has a connecting hole that penetrates the fixing plate, and the connecting hole penetrates the waterproof strip.

[0010] This utility model provides a highway bridge expansion joint that can maintain road surface smoothness, and its beneficial effects are as follows:

[0011] 1. When cleaning the dirt accumulated in the narrow gap between the first and second comb plates of the highway bridge expansion joint that can maintain the smoothness of the road surface, the fixing bolts on the connecting hole are removed, and then the first comb plate is pushed. The first comb plate will slide on the guide block and the fixing plate through the guide groove. Finally, the first comb plate is lifted up and removed from the fixing plate. The dirt accumulated in the narrow gap between the first and second comb plates can be cleaned. At the same time, the first comb plate itself can also be cleaned. This device can effectively solve the problem of the difficulty in cleaning the dirt accumulated in the narrow gap between the first and second comb plates. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0014] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the first comb plate structure of this utility model.

[0016] Explanation of reference numerals in the attached figures

[0017] 1. Comb assembly; 101. First comb plate; 102. Second comb plate; 103. First fixing hole; 104. Slide plate; 105. Waterproof tape;

[0018] 2. Splicing mechanism; 201. Fixing plate; 202. Limiting plate; 203. Limiting groove; 204. Sealing groove; 205. Sealing strip; 206. Connecting hole; 207. Second fixing hole; 208. Sealing gasket; 209. Second rectangular notch; 210. Guide block; 211. Guide groove; 212. First rectangular notch. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0020] Please see Figures 1-4 This utility model provides a highway bridge expansion joint that can maintain the smoothness of the road surface, including a comb assembly 1. The comb assembly 1 includes a first comb plate 101 and a second comb plate 102. The first comb plate 101 and the second comb plate 102 are slidably inserted together. When the bridge deforms, the first comb plate 101 and the second comb plate 102 are interleaved to adapt to the deformation of the bridge. A sliding plate 104 is fixed to the bottom of the first comb plate 101.

[0021] Please refer to this carefully. Figure 1 and Figure 4 The outer contour of the slide plate 104 is rectangular. A waterproof strip 105 is fixed to the bottom of the slide plate 104 and the fixing plate 201. The middle part of the waterproof strip 105 is arc-shaped. A first fixing hole 103 is provided on the first comb plate 101. The first fixing hole 103 passes through the slide plate 104 and the waterproof strip 105. The slide plate 104 can reduce the frictional resistance between the first comb plate 101 and the second comb plate 102. The waterproof strip 105 can achieve a better sealing effect.

[0022] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The first comb plate 101 is provided with a splicing mechanism 2, which includes a fixing plate 201 and a first rectangular notch 212 opened on the first comb plate 101. The fixing plate 201 is provided with a second fixing hole 207, which passes through the slide plate 104. The fixing plate 201 is provided with a second rectangular notch 209. A limit plate 202 is fixed on the right side of the fixing plate 201. A sealing strip 205 and a guide block 210 are fixed on the second rectangular notch 209. The fixing plate 201, the first comb plate 101, and the second comb plate 102 can directly bear the vehicle load. The top of the first comb plate 101, the second comb plate 102, and the fixing plate 201 are close to the road surface height, so the road surface flatness can be maintained and the height difference can be reduced.

[0023] Please refer to this carefully. Figure 3 and Figure 4A sealing gasket 208 is fixed on the sealing strip 205. The sealing gasket 208 is in contact with the sealing groove 204. The limiting plate 202 and the sealing strip 205 are parallel to the width direction of the fixing plate 201, and the guide block 210 is perpendicular to the width direction of the fixing plate 201.

[0024] Please refer to this carefully. Figure 2 and Figure 3 A limiting groove 203, a sealing groove 204, and a guide groove 211 are provided on the first rectangular notch 212. The sealing groove 204 and the limiting groove 203 are parallel to the width direction of the fixing plate 201. The limiting plate 202 and the limiting groove 203 cooperate to constrain the first comb plate 101 and the fixing plate 201 in the vertical direction, thereby improving the connection strength between the first comb plate 101 and the fixing plate 201. The sealing strip 205, the sealing groove 204, and the sealing gasket 208 cooperate to effectively improve the sealing and waterproofing effect between the first comb plate 101 and the fixing plate 201.

[0025] The guide groove 211 is perpendicular to the width direction of the fixed plate 201. The guide block 210 and the guide groove 211 can constrain the fixed plate 201 and the first comb plate 101 in the longitudinal direction, thereby improving the connection strength between the first comb plate 101 and the fixed plate 201. The first comb plate 101 is provided with a connecting hole 206 that penetrates the fixed plate 201. The connecting hole 206 penetrates the waterproof strip 105. The outline of the second rectangular notch 209 matches that of the first rectangular notch 212.

[0026] Working principle: In use, firstly, the waterproof tape 105 and the sliding plate 104 are laid in the reserved groove of the bridge. The waterproof tape 105 and the sliding plate 104 are covered by the fixing plate 201 and the second comb plate 102. Then, the fixing plate 201 and the second comb plate 102 are fixed in the reserved groove through the second fixing hole 207 and the first fixing hole 103. Finally, the first comb plate 101 is fixed to the fixing plate 201 through the connecting hole 206.

[0027] When it is necessary to clean the dirt accumulated in the narrow gap between the first comb plate 101 and the second comb plate 102, firstly, remove the fixing bolts on the connecting hole 206, then push the first comb plate 101. The first comb plate 101 will slide on the guide block 210 and the fixing plate 201 through the guide groove 211. Finally, lift the first comb plate 101 upwards and remove it from the fixing plate 201. Then, the dirt accumulated in the narrow gap between the first comb plate 101 and the second comb plate 102 can be cleaned. At the same time, the first comb plate 101 itself can also be cleaned. This device can effectively solve the problem of the difficulty in cleaning the dirt accumulated in the narrow gap between the first comb plate 101 and the second comb plate 102.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A highway bridge expansion joint capable of maintaining the flatness of a road surface, comprising a comb tooth assembly (1), the comb tooth assembly (1) comprising a first comb tooth plate (101) and a second comb tooth plate (102), characterized in that: The first comb plate (101) is provided with a splicing mechanism (2); The splicing mechanism (2) comprises a fixed plate (201) and a first rectangular gap (212) formed in the first comb plate (101), the fixed plate (201) is provided with a second rectangular gap (209), the right side of the fixed plate (201) is fixed with a limiting plate (202), the second rectangular gap (209) is fixed with a sealing strip (205) and a guide block (210), the limiting plate (202) and the sealing strip (205) are parallel to the width direction of the fixed plate (201), and the guide block (210) is perpendicular to the width direction of the fixed plate (201). The first rectangular gap (212) is provided with a limiting groove (203), a sealing groove (204) and a guide groove (211), the sealing groove (204) and the limiting groove (203) are parallel to the width direction of the fixed plate (201), the guide groove (211) is perpendicular to the width direction of the fixed plate (201), and the first comb plate (101) is provided with a connecting hole (206) penetrating through the fixed plate (201).

2. The highway bridge expansion joint capable of maintaining the flatness of the road surface according to claim 1, characterized in that: The first comb plate (101) and the second comb plate (102) are slidably inserted together, the bottom of the first comb plate (101) is fixed with a sliding plate (104), and the outer contour of the sliding plate (104) is rectangular.

3. The highway bridge expansion joint that can maintain the flatness of the road surface according to claim 2, characterized in that: The bottom of the sliding plate (104) and the fixed plate (201) is fixed with a waterproof belt (105), and the middle part of the waterproof belt (105) is arc-shaped.

4. The highway bridge expansion joint of claim 1, wherein: The sealing strip (205) is fixed with a sealing gasket (208), and the sealing gasket (208) is in contact with the sealing groove (204).

5. The highway bridge expansion joint of claim 3, wherein: The fixed plate (201) is provided with a second fixed hole (207), the second fixed hole (207) penetrates through the sliding plate (104), and the connecting hole (206) penetrates through the waterproof belt (105).

6. A highway bridge expansion joint that maintains road flatness according to claim 2, characterized in that: The first comb plate (101) is provided with a first fixed hole (103), and the first fixed hole (103) penetrates through the sliding plate (104) and the waterproof belt (105).

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