Stable self-cleaning comb tooth type expansion joint
By combining rubber waterstop strips and rubber hoses, the problem of rainwater accumulation in comb-shaped expansion joints is solved, enhancing the waterproof performance and stability of the device and ensuring normal vehicle operation.
Patent Information
- Application Number
- CN202520422748.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing comb-type expansion joint devices cannot clean themselves automatically after long-term use, leading to rainwater accumulation and affecting vehicle operation. In addition, the welding connection method results in poor stability.
The system combines rubber waterstop strips and rubber hoses to block gaps and drain water. At the same time, it enhances connection stability by installing bolts and connecting bridge plates, and improves stability by combining multiple connection methods.
It achieves a self-cleaning effect, prevents rainwater accumulation, improves the waterproof performance and overall stability of the expansion joint, and ensures normal vehicle operation.
Smart Images

Figure CN223853167U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to expansion joint technical field, concretely is a stable self -cleaning comb tooth type expansion joint. BACKGROUND
[0002] The comb tooth type expansion joint is a kind of expansion joint device commonly used in bridge engineering, and the comb tooth type expansion joint device is mainly composed of comb tooth type steel plate, stainless steel slide plate, chloroprene rubber plate, anchor bolt and the like.
[0003] Through search, the announcement No. for CN215252301U is a kind of curve wave type comb tooth plate expansion joint, including movable comb tooth plate, fixed comb tooth plate, through research analysis finds, although the device, comb tooth plate and cement pavement contact is curve simultaneously stressed, play the role of over, comb tooth plate is compared to linear type stress and gets buffering, play the protection effect to expansion joint, but, to some extent, there are still the following shortcomings.
[0004] For example, the expansion joint does not have the function of automatic cleaning, and a large amount of rainwater can accumulate in the gap inside the expansion joint when it is used for a long time. These rainwater cannot be discharged, which can cause road ponding and affect the normal driving of vehicles. At the same time, the expansion joint is only connected by welding and does not have multiple connection modes, so the overall stability is general, and the welded part may be broken under heavy pressure. In order to solve the above technical problems, we design a stable self-cleaning comb tooth type expansion joint. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a stable self-cleaning comb tooth type expansion joint, which has the advantages of stability and self-cleaning, solves the problem that a large amount of rainwater can accumulate in the gap inside the expansion joint, which cannot be discharged and can cause road ponding and affect the normal driving of vehicles, and the problem that the expansion joint is only connected by welding and does not have multiple connection modes, so the overall stability is general.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stable self-cleaning comb tooth type expansion joint, comprising comb tooth plate one and comb tooth plate two, the comb tooth plate one and the comb tooth plate two are arranged side by side, the bottom of the comb tooth plate one is fixedly installed with support frame one, the bottom of the comb tooth plate two is fixedly connected with support frame two, the outer side of the bottom of the comb tooth plate one and the comb tooth plate two is fixedly installed with mounting bracket, the top of the opposite side of the support frame one and the support frame two is provided with mounting clamping groove, the inner cavity of the mounting clamping groove is connected with rubber waterstop, the left and right sides of the bottom of the rubber waterstop are communicated with rubber hose, and the front and back sides of the comb tooth plate one and the comb tooth plate two are provided with connecting bridge plate.
[0007] Preferably, the surface of the mounting bracket is provided with mounting hole, and the distance between adjacent two mounting brackets is the same.
[0008] Preferably, the top of the comb plate one and the comb plate two are provided with mounting bolts one, and the top of the support frame one and the support frame two is provided with threaded holes below the mounting bolts one.
[0009] Preferably, the bottom of the mounting bolts one is screwed into the comb plate one and the comb plate two, and the top of the mounting bolts one is provided with hexagonal grooves one.
[0010] Preferably, the front and back of the top of the comb plate one and the comb plate two are provided with grooves matched with the connecting bridge plate, and the top of the connecting bridge plate is at the same horizontal plane with the top of the comb plate one and the comb plate two.
[0011] Preferably, the surface of the rubber waterstop is matched with the inner wall of the mounting slot, and the left and right rubber hoses are respectively penetrated through the support frame one and the support frame two.
[0012] Preferably, the left and right of the top of the connecting bridge plate are provided with mounting bolts two, and the bottom of the mounting bolts two is screwed into the top of the comb plate one and the comb plate two.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1、The utility model discloses a rubber waterstop is blocked between the gap of expansion joint comb tooth, utilizes the water of rubber waterstop and blocks, effectively improves the waterproof performance of expansion joint, simultaneously utilizes the water flow of rubber hose and exports the inside of rubber waterstop, effectively avoids the rainwater accumulation, improves the waterproof performance of expansion joint, also has self -cleaning effect, will not cause sewage accumulation.
[0015] 2、The utility model discloses a mounting bolt one is connected to the comb plate one, the comb plate two, the support frame one and the support frame two and is firm, adds bolt connection simultaneously in the welding, effectively improves the stability of expansion joint, then cooperates the connecting bridge plate and is connected, is fastened through the mounting bolt two, makes the device still not influence expansion joint stability after the crack of welding. DRAWINGS
[0016] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the three -dimensional structure schematic diagram of the utility model and looks up;
[0018] Figure 3 It is the three -dimensional structure schematic diagram of the utility model and looks up;
[0019] Figure 4 It is the three -dimensional structure schematic diagram of the utility model and looks up;
[0020] Figure 5 For the utility model Figure 4 The enlarged view of A.
[0021] In the figure: 1, comb tooth plate one; 2, comb tooth plate two; 3, mounting bolt one; 4, mounting bracket; 5, connecting bridge plate; 6, mounting bolt two; 7, support frame one; 8, support frame two; 9, rubber waterstop; 10, rubber hose; 11, threaded hole; 12, mounting slot. Specific embodiments
[0022] Please refer to Figures 1-5 A stable self-cleaning comb tooth expansion joint, comprising comb tooth plate one 1 and comb tooth plate two 2, comb tooth plate one 1 and comb tooth plate two 2 are arranged side by side, the bottom of comb tooth plate one 1 is fixedly provided with support frame one 7, the bottom of comb tooth plate two 2 is fixedly connected with support frame two 8, the outer side of the bottom of comb tooth plate one 1 and comb tooth plate two 2 is fixedly provided with mounting bracket 4, the top of the opposite side of support frame one 7 and support frame two 8 is provided with mounting slot 12, rubber waterstop 9 is clamped and mounted between the inner cavities of mounting slot 12, rubber hose 10 is communicated with the left and right sides of the bottom of rubber waterstop 9, connecting bridge plate 5 is arranged between the front and back sides of comb tooth plate one 1 and comb tooth plate two 2, through the arrangement of connecting bridge plate 5, comb tooth plate one 1 and comb tooth plate two 2 can be connected again, so that comb tooth plate one 1 and comb tooth plate two 2 can be stably connected while sliding relative to each other, effectively improving the stability of the expansion joint;
[0023] Please refer to Figure 1 The surface of mounting bracket 4 is provided with mounting hole, through the arrangement of mounting hole, mounting bracket 4 can be conveniently installed in the interior of highway concrete, improving the stability of the expansion joint installed on the bridge, the distance between adjacent two mounting brackets 4 is the same;
[0024] Please refer to Figure 1 The top of comb tooth plate one 1 and comb tooth plate two 2 is provided with mounting bolt one 3, the top of support frame one 7 and support frame two 8 and below mounting bolt one 3 is provided with threaded hole 11, through the arrangement of mounting bolt one 3 and threaded hole 11, comb tooth plate one 1 and support frame one 7, comb tooth plate two 2 and support frame two 8 can be fixedly connected respectively, improving the stability of the bridge connection;
[0025] Please refer to Figure 1 And Figure 3 The bottom of mounting bolt one 3 penetrates comb tooth plate one 1 and comb tooth plate two 2 and is threadedly connected with the bottom of threaded hole 11, the top of mounting bolt one 3 is provided with hexagonal groove one, through the arrangement of hexagonal groove one, the staff can conveniently rotate mounting bolt one 3 using tools, facilitating the installation and dismounting of mounting bolt one 3;
[0026] Please refer to Figure 1 and Figure 3 The front and back sides of the top of the comb plate one 1 and the comb plate two 2 are provided with grooves matched with the connecting bridge plate 5. Through the grooves, the installation of the connecting bridge plate 5 can be limited, the displacement of the connecting bridge plate 5 can be avoided, the installation stability is improved, and the top of the connecting bridge plate 5 is at the same horizontal plane with the top of the comb plate one 1 and the comb plate two 2.
[0027] Please refer to Figure 2 , Figure 4 and Figure 5 The surface of the rubber waterstop 9 is attached to the inner wall of the mounting slot 12, and the left and right rubber hoses 10 respectively penetrate the support frame one 7 and the support frame two 8. Through the rubber hose 10, the accumulated rainwater in the rubber waterstop 9 can be easily drained, preventing water accumulation and achieving automatic drainage and cleaning effect.
[0028] Please refer to Figure 1 and Figure 3 The left and right sides of the top of the connecting bridge plate 5 are provided with installation bolts two 6, and the bottoms of the installation bolts two 6 on both sides penetrate the connecting bridge plate 5 and are respectively screwed to the top of the comb plate one 1 and the comb plate two 2.
[0029] In use, the support frame one 7 and the support frame two 8 of the expansion joint are respectively embedded and installed at the road connection position, then the comb plate one 1 and the comb plate two 2 are respectively installed on the support frame one 7 and the support frame two 8, connected by the installation bolt one 3, then the connecting bridge plate 5 is placed between the comb plate one 1 and the comb plate two 2, and then the two ends of the top of the connecting bridge plate 5 are connected by the installation bolt two 6 to achieve stable installation effect. The gap between the comb teeth of the expansion joint is blocked by the rubber waterstop 9, and the rubber waterstop 9 is used for water blocking, effectively improving the waterproof performance of the expansion joint, and the rubber hose 10 is used to drain the water flow in the rubber waterstop 9, effectively preventing rainwater accumulation.
[0030] In summary: the stable self-cleaning comb tooth expansion joint solves the problem that a large amount of rainwater accumulates in the gap inside the expansion joint, which cannot be drained, causing road waterlogging and affecting normal vehicle driving, and the expansion joint only uses welding connection without multiple connection methods, and the overall stability is general.
Claims
1. A stable self-cleaning comb tooth type expansion joint comprising a comb tooth plate one (1) and a comb tooth plate two (2), characterized by: The comb plate one (1) and the comb plate two (2) are arranged side by side, the bottom of the comb plate one (1) is fixedly installed with a support frame one (7), the bottom of the comb plate two (2) is fixedly connected with a support frame two (8), the outer side of the bottom of the comb plate one (1) and the comb plate two (2) is fixedly installed with a mounting bracket (4), the top of the opposite side of the support frame one (7) and the support frame two (8) is provided with a mounting clamping groove (12), the inner cavity of the mounting clamping groove (12) is clamped and mounted with a rubber water stop strip (9), the left side and the right side of the bottom of the rubber water stop strip (9) is communicated with a rubber hose (10), and the front side and the back side of the comb plate one (1) and the comb plate two (2) are provided with a connecting bridge plate (5).
2. A stable self-cleaning comb tooth type expansion joint according to claim 1, characterized in that: The surface of the mounting bracket (4) is provided with a mounting hole, and the distance between the adjacent two mounting brackets (4) is the same.
3. A stable self-cleaning comb tooth type expansion joint according to claim 1, characterized in that: The top of the comb plate one (1) and the comb plate two (2) is provided with a mounting bolt one (3), and the top of the support frame one (7) and the support frame two (8) and below the mounting bolt one (3) is provided with a threaded hole (11).
4. A stable self-cleaning comb tooth expansion joint as claimed in claim 3, wherein: The bottom of the mounting bolt one (3) penetrates the comb plate one (1) and the comb plate two (2) and is in threaded connection with the bottom of the threaded hole (11), and the top of the mounting bolt one (3) is provided with a hexagonal groove one.
5. A stable self-cleaning comb tooth expansion joint as claimed in claim 1, wherein: The front side and the back side of the top of the comb plate one (1) and the comb plate two (2) are provided with a groove matched with the connecting bridge plate (5), and the top of the connecting bridge plate (5) is at the same horizontal plane with the top of the comb plate one (1) and the comb plate two (2).
6. A stable self-cleaning comb tooth expansion joint as claimed in claim 1, wherein: The surface of the rubber water stop strip (9) is matched with the inner wall of the mounting clamping groove (12), and the left rubber hose (10) and the right rubber hose (10) penetrate the support frame one (7) and the support frame two (8) respectively.
7. A stable self-cleaning comb tooth expansion joint as claimed in claim 1, wherein: The top of the connecting bridge plate (5) is provided with a mounting bolt two (6), and the bottom of the mounting bolt two (6) penetrates the connecting bridge plate (5) and is in threaded connection with the top of the comb plate one (1) and the comb plate two (2) respectively.
Citation Information
Patent Citations
A type of curved wave-shaped comb-tooth plate expansion joint
CN215252301U