Sliding steel plate expansion joint

The sliding steel plate expansion joint, with its modular structural design, utilizes a combination of adjusting screws and flip-up clamps to solve the problem of the inability to adjust existing fixed steel plate structures, thus achieving convenient and flexible installation.

CN224564990UActive Publication Date: 2026-07-28GUANGXI LUCHAN CONSTR INVESTMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI LUCHAN CONSTR INVESTMENT CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

The existing fixed steel plate structure at the road joint connection point is not adjustable, making it unsuitable for installation in joints of various sizes and distances. Furthermore, the installation requires the assistance of large equipment, making it inconvenient.

Method used

It adopts a modular structural design, including components such as support blocks, movable plates, adjusting screws, and flip plates. By rotating the adjusting screws and the top connecting screws, the movable plates can be moved in a staggered manner and the flip plates can be flipped, forming a staggered toothed connection, which enables adjustable installation connection.

Benefits of technology

It enables a convenient installation process, allows for adjustments to the installation as needed, reduces reliance on large equipment, and improves the flexibility and convenience of installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224564990U_ABST
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Abstract

The utility model discloses a kind of sliding steel plate type expansion joints, it is related to expansion joint field, including support block one, the one side of support block one is horizontally provided with support block two, the one side of support block one and support block two is evenly welded with cooperation side plate, the one side of cooperation side plate is evenly provided with through hole, the one side of support block one is horizontally butt-jointed with support sleeve plate, the one side of support block two is horizontally butt-jointed with inserting end plate, the one side of support block one and support block two is evenly inserted with movable plate body, one end of movable plate body is horizontally fixed with end fixed block Welding, one end of movable plate body is fixed with cooperation clamping plate Welding, the one side of support block one and support block two is evenly provided with movable side groove, using split structure makes it more convenient when installing and using, simultaneously in combination adjustable installation connecting structure makes it can be adjusted installation and use according to need.
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Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, specifically a sliding steel plate expansion joint. Background Technology

[0002] The expansion joint is made of integrally formed irregular-shaped steel and consists of side beams, middle beams, and cross beams. This type of modular expansion joint has a design allowable expansion range of 40~400mm and a structural height of 100~150mm, and is suitable for expansion joints in highway bridge engineering. The expansion joint structures currently installed at road joint connection points are integrated fixed steel plate structures. This lack of specific adjustment makes them unsuitable for installation in gaps of various sizes and distances, thus limiting their use and impacting their functionality. Furthermore, the integrated structure requires the use of large equipment, making installation inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a sliding steel plate expansion joint to solve the problem mentioned in the background art that the expansion joint structure installed at the current road joint connection position is an integrated fixed steel plate structure. This structure lacks specific adjustment effect, making it unable to meet the installation and use of gaps of various sizes and distances, thus restricting its installation and use. Furthermore, the integrated structure requires the cooperation of large equipment for installation, resulting in inconvenient installation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A sliding steel plate expansion joint includes a support block one, a support block two horizontally disposed on one side of the support block one, mating side plates horizontally and evenly welded to one side of both the support block one and the support block two, and through holes evenly formed on the side of each mating side plate. A support sleeve plate is horizontally connected to one side of the support block one, and an insertion end plate is horizontally connected to one side of the support block two. A movable plate is horizontally and evenly inserted into one side of both the support block one and the support block two, with an end fixing block horizontally and fixedly welded to one end of each movable plate, and a mating clamping plate fixedly welded to one end of each movable plate. Movable side grooves are evenly formed on one side of both the support block one and the support block two, and adjustable... The movable side groove has symmetrically formed limiting grooves on its inner top and bottom surfaces. Limiting side blocks are symmetrically fixed on the top and bottom surfaces of the movable plate. One end of the movable plate has a horizontally formed end screw hole. The two sides of the end fixing block have symmetrically formed snap-fit ​​side grooves. The bottom surfaces of support block one and support block two have horizontally formed mounting grooves. One end of the support sleeve and the insertion end plate is horizontally fixedly welded with an end mounting plate. A buffer rubber plate is horizontally snap-fitted onto the inner side of the support sleeve. One end of the mating clamping plate is horizontally inserted with a top-fitting screw. A top-fitting inclined block is snap-fitted into the inner groove of the mating clamping plate. Side through grooves are symmetrically formed on both sides of the mating clamping plate. A flip-up clamping plate is snap-fitted into the inner side of the side through groove.

[0005] In a preferred embodiment of this utility model, the specifications and dimensions of the support block one and the support block two are consistent with each other and are arranged in parallel with each other. There are multiple mating side plates, and the multiple mating side plates are arranged in parallel with each other at equal intervals.

[0006] In a preferred embodiment of the present invention: one side of the support sleeve is horizontally connected to the side opening end of the mounting bottom groove, and a groove structure is horizontally opened on one side of the support sleeve; one side of the plug-in end plate is horizontally connected to the side opening end of the mounting bottom groove, and one end of the plug-in end plate is horizontally inserted into the side groove of the support sleeve.

[0007] In a preferred embodiment of this utility model: there are multiple movable plates, and the multiple movable plates are arranged in parallel at equal intervals. One end of each movable plate is horizontally inserted into the inner side of the movable side groove. One end of the end fixing block is fixedly connected to the center position of one end of the movable plate, and the matching plates are horizontally inserted between the end fixing blocks.

[0008] In a preferred embodiment of this utility model: one end of each adjusting screw extends horizontally and is inserted into the inner side of the movable side groove, and the extended end is threadedly connected to the inner side of the end screw hole. The limiting side blocks are symmetrically fixed at one end of the top and bottom surfaces of the movable plate, and one end of the limiting side block is correspondingly snapped into the inner side of the limiting inner groove. The mounting bottom groove is horizontally opened at one side of the bottom surface of support block one and support block two, and the inner side of the mounting bottom groove is uniformly provided with screw hole structures.

[0009] In a preferred embodiment of this utility model: the end mounting plate is horizontally inserted into the inner side of the mounting bottom groove, and the end mounting plate is fixedly connected to the inner side of the mounting bottom groove by bolts; the top connecting screw is horizontally inserted into the inner central axis position of the mating clamping plate; the two sides of the top connecting inclined block are symmetrically configured as inclined structures; the flipping clamping plate is connected to the inner side of the side through groove by an elastic shaft, and one end of the flipping clamping plate is flipped and snapped into the inner side of the snapping side groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model involves horizontally positioning support blocks one and two at designated locations on the road joint. A horizontally inserted steel bar is then inserted through the through hole, and a side plate is fixedly connected at the end of the road joint. The installation of support blocks one and two involves horizontally inserting one end of the side-mounted insertion plate into the groove of one end of the support sleeve plate, thus pressing against the side of the buffer rubber plate. The insertion end plate and the support sleeve plate are arranged in a telescopic rod structure. Rotating the side adjustment screw causes the movable plate to move horizontally within the movable side groove, bringing the staggered movable plates together towards the center. The movement allows one end of the mating plate to be horizontally inserted into the side of the end fixing block, creating a staggered toothed connection. After rotating the top screw, the thread of the top screw presses against the top inclined block, causing it to move inside the mating plate. This causes the inclined side to press against the flipping plate, which flips inside the side through groove. One end of the flipping plate then extends and engages inside the engagement side groove, forming a connection between the mating plate and the end fixing block. The modular structure makes installation and use more convenient, and the adjustable installation connection structure allows for adjustments as needed. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A three-dimensional structural diagram of a sliding steel plate expansion joint; Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-section of a support block for a sliding steel plate expansion joint; Figure 3 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the support sleeve of a sliding steel plate expansion joint; Figure 4 This is a top-view cross-sectional structural diagram showing the connection details of a sliding steel plate expansion joint's mating clamp.

[0012] In the diagram: 1. Support block one; 2. Support block two; 3. Matching side plate; 4. Through hole; 5. Support sleeve plate; 6. Insertion end plate; 7. Movable plate; 8. End fixing block; 9. Matching clamping plate; 10. Movable side groove; 11. Adjusting screw; 12. Limiting inner groove; 13. Limiting side block; 14. End screw hole; 15. Clamping side groove; 16. Mounting bottom groove; 17. End mounting plate; 18. Buffer rubber plate; 19. Top connecting screw; 20. Top connecting inclined block; 21. Side through groove; 22. Flip clamping plate. Detailed Implementation

[0013] Please see Figure 1 In this embodiment of the utility model, a sliding steel plate expansion joint includes a support block 1, a support block 2 horizontally arranged on one side of the support block 1, and mating side plates 3 horizontally and evenly welded to one side of both the support block 1 and the support block 2. The specifications and dimensions of the support block 1 and the support block 2 are consistent with each other and are arranged in parallel. There are multiple mating side plates 3, which are arranged in parallel at equal intervals. Through holes 4 are evenly opened on the side of the mating side plates 3. A support sleeve plate 5 is horizontally connected to one side of the support block 1, and an insertion end plate 6 is horizontally connected to one side of the support block 2. One side of the support sleeve plate 5 is horizontally connected to the side opening end of the mounting groove 16. A horizontally grooved structure is provided. One side of the plug-in end plate 6 is horizontally connected to the side opening end of the mounting bottom groove 16, and one end of the plug-in end plate 6 is horizontally inserted into the side groove of the support sleeve plate 5. One side of the support block 1 and the support block 2 are horizontally and evenly inserted with movable plates 7. One end of the movable plate 7 is horizontally fixedly welded with an end fixing block 8. One end of the movable plate 7 is fixedly welded with a mating plate 9. There are multiple movable plates 7, and the multiple movable plates 7 are arranged in parallel at equal intervals. One end of each movable plate 7 is horizontally inserted into the inner side of the movable side groove 10. One end of the end fixing block 8 is fixedly connected to the center position of one end of the movable plate 7. The mating plates 9 are all horizontally inserted between the end fixing blocks 8. Please see Figure 2-4In this embodiment of the utility model, a sliding steel plate expansion joint is provided, wherein movable side grooves 10 are evenly provided on one side of support block 1 and support block 2, and adjusting screws 11 are evenly inserted into one side of support block 1 and support block 2. A limiting inner groove 12 is symmetrically provided on the top and bottom surfaces of the movable side groove 10. A limiting side block 13 is symmetrically fixed on the top and bottom surfaces of the movable plate 7. An end screw hole 14 is horizontally provided at one end of the movable plate 7, and the two sides of the end fixing block 8 are symmetrically provided with… A snap-fit ​​side groove 15 is provided. A mounting bottom groove 16 is horizontally opened on the bottom surface of support block 1 and support block 2. One end of each adjusting screw 11 extends horizontally and is inserted into the inner side of the movable side groove 10, with the extended end threadedly connected to the inner side of the end screw hole 14. Limiting side blocks 13 are symmetrically fixed at one end of the top and bottom surfaces of the movable plate 7, and one end of each limiting side block 13 is correspondingly snap-fitted into the inner side of the limiting inner groove 12. The mounting bottom groove 16 is horizontally opened on support block 1 and support block 2. On one side of the bottom surface of support block 2, and on the inner side of the mounting groove 16, screw holes are evenly provided. One end of support sleeve 5 and insertion end plate 6 is horizontally fixedly welded with an end mounting plate 17. A buffer rubber plate 18 is horizontally fixedly snapped onto the inner side of support sleeve 5. A top-connecting screw 19 is horizontally inserted into one end of mating plate 9. A top-connecting inclined block 20 is snapped into the inner groove of mating plate 9. Side through grooves 21 are symmetrically opened on both sides of mating plate 9. A flipping mechanism is snapped into the inner side of the side through groove 21. The clamping plate 22 and the end mounting plate 17 are horizontally inserted into the inner side of the mounting base groove 16, and the end mounting plate 17 is fixedly connected to the inner side of the mounting base groove 16 by bolts. The top connecting screw 19 is horizontally inserted into the inner central axis position of the mating clamping plate 9. The two sides of the top connecting inclined block 20 are symmetrically set as inclined structures. The flipping clamping plate 22 is connected to the inner side of the side through groove 21 by an elastic shaft, and one end of the flipping clamping plate 22 is flipped and snapped into the inner side of the snapping side groove 15.

[0014] The working principle of this utility model is as follows: Support block 1 and support block 2 are horizontally positioned at the designated location of the road joint. The reinforcing bars are horizontally inserted through the through hole 4, and the side plate 3 is fixedly connected at the end of the road joint. The side insertion end plate 6 is horizontally inserted into the groove of the support sleeve plate 5, and then pressed against the side of the buffer rubber plate 18. The insertion end plate 6 and the support sleeve plate 5 are arranged in a telescopic rod structure. After rotating the side adjusting screw 11, the adjusting screw 11 causes the movable plate 7 to move horizontally within the movable side groove 10. The movable plates 7, which are arranged in a staggered manner, move towards the center and close together. This allows one end of the mating plate 9 to be horizontally inserted into the side of the end fixing block 8, forming a staggered toothed connection. After rotating the top screw 19, the top screw 19 presses against the top inclined block 20 and moves inside the mating plate 9. This causes the inclined side to press against the flipping plate 22 and flip it inside the side through groove 21. One end of the flipping plate 21 flips out and extends to engage inside the engagement side groove 15, forming a connection between the mating plate 9 and the end fixing block 8.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sliding steel plate expansion joint, comprising a support block (1), characterized in that, Support block one (1) is horizontally provided with support block two (2) on one side. Support block one (1) and support block two (2) are horizontally and evenly welded with mating side plates (3). Through holes (4) are evenly opened on the side of the mating side plates (3). Support sleeve plate (5) is horizontally connected to one side of support block one (1). Insertion end plate (6) is horizontally connected to one side of support block two (2). Movable plate body (7) is horizontally and evenly inserted into one side of support block one (1) and support block two (2). End fixing block (8) is horizontally fixedly welded to one end of the movable plate body (7). Matching clamp plate (9) is fixedly welded to one end of the movable plate body (7). Movable side groove (10) is evenly opened on one side of support block one (1) and support block two (2). Adjusting screws (11) are evenly inserted into one side of support block one (1) and support block two (2). A limiting groove (12) is symmetrically opened on the top and bottom surfaces of the inner side. Limiting side blocks (13) are symmetrically fixed on the top and bottom surfaces of the movable plate (7). An end screw hole (14) is horizontally opened at one end of the movable plate (7). Snap-fit ​​side grooves (15) are symmetrically opened on both sides of the end fixing block (8). Mounting bottom grooves (16) are horizontally opened on the bottom surfaces of the support block one (1) and support block two (2). The support sleeve plate (5) and the plug-in end plate (6) One end of the support sleeve (5) is horizontally fixedly welded with an end mounting plate (17), and the inner side of the support sleeve (5) is horizontally fixedly snapped with a buffer rubber plate (18). One end of the mating plate (9) is horizontally inserted with a top screw (19), and the inner groove of the mating plate (9) is snapped with a top inclined block (20). The two sides of the mating plate (9) are symmetrically provided with side through grooves (21), and the inner side of the side through grooves (21) is snapped with a flip plate (22).

2. The sliding steel plate expansion joint according to claim 1, characterized in that, The specifications and dimensions of the support block one (1) and support block two (2) are consistent with each other and are arranged in parallel. There are multiple side plates (3), and the multiple side plates (3) are arranged in parallel at equal intervals.

3. A sliding steel plate expansion joint according to claim 1, characterized in that, The side of the support sleeve (5) is horizontally connected to the side opening end of the mounting groove (16), and the side of the support sleeve (5) is horizontally provided with a groove structure. The side of the plug-in end plate (6) is horizontally connected to the side opening end of the mounting groove (16), and one end of the plug-in end plate (6) is horizontally inserted into the side groove of the support sleeve (5).

4. A sliding steel plate expansion joint according to claim 1, characterized in that, The number of movable plates (7) is multiple, and the multiple movable plates (7) are arranged in parallel at equal intervals. One end of each movable plate (7) is horizontally inserted into the inner side of the movable side groove (10). One end of the end fixing block (8) is fixedly connected to the center of one end of the movable plate (7). The matching plates (9) are horizontally inserted between the end fixing blocks (8).

5. A sliding steel plate expansion joint according to claim 1, characterized in that, One end of the adjusting screw (11) is horizontally extended and inserted into the inner side of the movable side groove (10), and the extended end is threaded and connected to the inner side of the end screw hole (14). The limiting side block (13) is symmetrically fixed at one end of the top and bottom surfaces of the movable plate (7), and one end of the limiting side block (13) is correspondingly snapped into the inner side of the limiting inner groove (12). The mounting bottom groove (16) is horizontally opened at one side of the bottom surface of the support block one (1) and the support block two (2), and the inner side of the mounting bottom groove (16) is uniformly provided with screw hole structures.

6. A sliding steel plate expansion joint according to claim 1, characterized in that, The end mounting plate (17) is horizontally inserted into the inner side of the mounting base groove (16), and the end mounting plate (17) is fixedly connected to the inner side of the mounting base groove (16) by bolts. The top connecting screw (19) is horizontally inserted into the inner central axis position of the mating clamping plate (9). The two sides of the top connecting inclined block (20) are symmetrically set as inclined structures. The flipping clamping plate (22) is connected to the inner side of the side through groove (21) by an elastic shaft, and one end of the flipping clamping plate (22) is flipped and clamped to the inner side of the clamping side groove (15).