Bolt-free comb plate expansion device

Abstract

The invention discloses a bolt-free comb plate expansion device which comprises a movable comb plate and a fixed comb plate, the movable comb plate is fixedly connected with a first bridge body through an anchoring mechanism, the fixed comb plate is fixedly connected with a second bridge body through an anchoring mechanism, and an expansion joint is arranged between the first bridge body and the second bridge body. A horizontal supporting sliding plate is welded to the surface of the movable comb plate, and a fixed supporting plate is movably connected to the lower surface of the horizontal supporting sliding plate; a water stop belt is arranged between the first bridge body and the second bridge body, a first baffle is fixedly connected to the side surface of the first bridge body, a second baffle is fixedly connected to the side surface of the second bridge body, the first baffle is movably connected with the second baffle, a water absorption piece is arranged on the surface of the second baffle, and an inclined water groove is formed in the surface of the second baffle. The horizontal supporting sliding plate, the fixed supporting plate, the first baffle, the second baffle and the water stop belt are arranged to form a three-layer waterproof structure, so that water is effectively prevented from entering, and the safe drainage and waterproof functions are added.

Description

Technical Field

[0001] The invention relates to the technical field of telescopic devices, and in particular to a boltless comb plate telescopic device. Background Art

[0002] Bridge expansion joints are important connecting components of bridge structures. They directly bear the impact of wheel loads and are exposed to the natural environment for a long time. Bridge expansion joints are the most vulnerable and difficult to repair structures. Bridge expansion joints include simply supported structures, cantilever structures and semi-cantilever structures. For example, a Chinese patent with application number 201721444457.7 provides a boltless comb-shaped plate bridge expansion joint, which eliminates the bolt connection of the comb-tooth plate by improving the comb-tooth plate structure, thereby overcoming the problem of bolts in traditional comb-tooth plate expansion joints being easy to loosen, fall off or be damaged. However, the existing expansion structure cannot remove water in a timely manner, which affects the service life of the device, and there will be large fluctuations when under force. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a boltless comb plate telescopic device, which forms three layers of waterproofing by arranging a horizontal support slide plate and a fixed support plate, a first baffle plate and a second baffle plate, and a water stop strip, thereby effectively preventing water from entering and increasing the safe drainage and waterproofing functions.

[0004] The present invention also provides the above-mentioned boltless comb tooth plate telescopic device, including: a movable comb tooth plate and a fixed comb tooth plate, the movable comb tooth plate is fixedly connected to the first bridge body through an anchoring mechanism, the fixed comb tooth plate is fixedly connected to the second bridge body through an anchoring mechanism, an expansion joint is arranged between the first bridge body and the second bridge body, a horizontal support slide plate is welded to the surface of the movable comb tooth plate, and a fixed support plate is movably connected to the lower surface of the horizontal support slide plate; a waterstop is arranged between the first bridge body and the second bridge body, a first baffle is fixedly connected to the side surface of the first bridge body, a second baffle is fixedly connected to the side surface of the second bridge body, the first baffle is movably connected to the second baffle, a water absorbent sheet is arranged on the surface of the second baffle, and an inclined water trough is opened on the surface of the second baffle. Through the above structure, three layers of waterproofing are formed by arranging the horizontal support slide plate and the fixed support plate, the first baffle and the second baffle, and the waterstop, thereby effectively preventing water from entering and increasing the safety drainage and waterproofing functions.

[0005] According to a boltless comb plate telescopic device provided by the present invention, the anchoring structure includes door frame-type steel bars, and horizontal steel bars are arranged inside the closed section of the door frame-type steel bars, and the horizontal steel bars are connected to the first bridge body.

[0006] According to a boltless comb plate telescopic device provided by the present invention, the door frame type steel bar is fixedly connected to the movable comb plate, and one end of the door frame type steel bar is embedded in the interior of the first bridge body.

[0007] According to a boltless comb plate telescopic device provided by the present invention, the first baffle plate is located on the upper surface of the second baffle plate, and a rubber sealing strip is provided between the first baffle plate and the second baffle plate.

[0008] According to the boltless comb plate telescopic device provided by the present invention, the side surface of the water absorbent sheet is connected to the second baffle.

[0009] According to a boltless comb plate telescopic device provided by the present invention, the water stop strip is located below the second baffle.

[0010] According to a boltless comb plate telescopic device provided by the present invention, a damper is arranged between the first bridge body and the second bridge body, and a spring is arranged on a side surface of the damper.

[0011] According to a boltless comb plate telescopic device provided by the present invention, a telescopic rod is provided on the side surface of the first bridge body, and one end of the telescopic rod away from the first bridge body is connected to the second baffle.

[0012] Beneficial Effects

[0013] 1. The present invention forms three layers of waterproofing by providing a horizontal support slide plate and a fixed support plate, a first baffle plate and a second baffle plate, and a water stop strip, thereby effectively preventing water from entering and increasing safe drainage and waterproofing functions.

[0014] 2. The bolt-free structure of the present invention avoids the occurrence of corrosion of the bolts, comb plates and bridge body caused by water entering the gaps of the bolt holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 It is a schematic diagram of the overall structure of the boltless comb plate telescopic device of the present invention;

[0017] Figure 2 The boltless comb plate telescopic device of the present invention Figure 1 A magnified view of the structure in the middle.

[0018] Legend:

[0019] 1. Movable comb plate; 2. Fixed comb plate; 3. First bridge body; 4. Second bridge body; 5. Expansion joint; 6. Horizontal support slide plate; 7. Fixed support plate; 8. Door frame type steel bar; 9. Horizontal steel bar; 10. Water stop strip; 11. First baffle plate; 12. Second baffle plate; 13. Water absorbent sheet; 14. Inclined water trough; 15. Damper; 16. Spring; 17. Telescopic rod. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-2 The embodiment of the present invention is a boltless comb plate telescopic device, which includes: a movable comb plate 1 and a fixed comb plate 2, which are moved and closed, the movable comb plate 1 is fixedly connected to the first bridge body 3 through an anchoring mechanism, the movable comb plate 1 is fixed, the fixed comb plate 2 is fixedly connected to the second bridge body 4 through an anchoring mechanism, the fixed comb plate 2 is fixed, and an expansion joint 5 is provided between the first bridge body 3 and the second bridge body 4 to facilitate expansion and contraction, thereby completing the force release work of the bridge, and a horizontal support slide plate 6 is welded on the surface of the movable comb plate 1, which is parallel to the bridge deck, so as to realize the downward movement of the horizontal support slide plate 6 at the opening A fixed support plate 7 is movably connected to the surface; in combination with the horizontal support slide plate 6, a waterstop 10 is arranged between the first bridge body 3 and the second bridge body 4 to intercept water, a first baffle 11 is fixedly connected to the side surface of the first bridge body 3 to block water, a second baffle 12 is fixedly connected to the side surface of the second bridge body 4, and combined with the first baffle 11 to form a relatively closed water retaining structure, the first baffle 11 is movably connected to the second baffle 12, a water absorbent sheet 13 is arranged on the surface of the second baffle 12 to absorb water, and an inclined water trough 14 is provided on the surface of the second baffle 12 to facilitate the inclined outflow of water.

[0022] The anchoring structure includes a portal frame type steel bar 8 for connection. A horizontal steel bar 9 is arranged inside the closed section of the portal frame type steel bar 8 to fix the portal frame type steel bar 8. The horizontal steel bar 9 is connected to the first bridge body 3 and inserted into the bridge body, thereby limiting the portal frame type steel bar 8.

[0023] The door frame type steel bar 8 is fixedly connected to the movable comb plate 1 , and one end of the door frame type steel bar 8 is embedded in the interior of the first bridge body 3 to determine the position of the door frame type steel bar 8 .

[0024] The first baffle 11 is located on the upper surface of the second baffle 12, and a rubber sealing strip is provided between the first baffle 11 and the second baffle 12, so that the first baffle 11 and the second baffle 12 form a sealing effect. The side surface of the water-absorbing sheet 13 is connected to the second baffle 12, so that the water-absorbing sheet 13 absorbs water and can squeeze it during the expansion and contraction process of the expansion joint 5, so as to drain water before the water stop 10.

[0025] The water stop 10 is located below the second baffle 12. Water is blocked above the water stop and can be drained. A damper 15 is provided between the first bridge body 3 and the second bridge body 4 to reduce the impact of vibration. A spring 16 is provided on the side surface of the damper 15 to provide a supporting elastic force for movement. A telescopic rod 17 is provided on the side surface of the first bridge body 3 to ensure the position of the second baffle 12. The end of the telescopic rod 17 away from the first bridge body 3 is connected to the second baffle 12 to guide it and facilitate observation of the state of the expansion joint.

[0026] Working principle: When in use, when water enters the expansion joint 5, it passes through the first baffle 11 and the second baffle 12, and is adsorbed by the water absorbent sheet 13 to prevent it from flowing down directly. After experiencing pressure, the water absorbent sheet 13 is squeezed dry by the second baffle 12, and then flows out quickly along the inclined water trough 14. While vibrating, the amplitude of the vibration can be further weakened. At the same time, the status of the device can be observed according to the status of the telescopic rod 17, which facilitates the maintenance of the device.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A boltless comb plate telescopic device, It is characterized in that include: A movable comb plate (1) and a fixed comb plate (2), wherein the movable comb plate (1) is fixedly connected to a first bridge body (3) via an anchoring mechanism, and the fixed comb plate (2) is fixedly connected to a second bridge body (4) via an anchoring mechanism, an expansion joint (5) is provided between the first bridge body (3) and the second bridge body (4), a horizontal support slide plate (6) is welded to the surface of the movable comb plate (1), and a fixed support plate (7) is movably connected to the lower surface of the horizontal support slide plate (6); A water stop strip (10) is provided between the first bridge body (3) and the second bridge body (4); a first baffle (11) is fixedly connected to the side surface of the first bridge body (3); a second baffle (12) is fixedly connected to the side surface of the second bridge body (4); the first baffle (11) and the second baffle (12) are movably connected; a water absorbent sheet (13) is provided on the surface of the second baffle (12); and an inclined water trough (14) is provided on the surface of the second baffle (12).

2. A boltless comb plate telescopic device according to claim 1, It is characterized in that The anchoring structure comprises a door frame type steel bar (8), a horizontal steel bar (9) is arranged inside a closed section of the door frame type steel bar (8), and the horizontal steel bar (9) is connected to the first bridge body (3).

3. A boltless comb plate telescopic device according to claim 2, It is characterized in that The door frame type steel bar (8) is fixedly connected to the movable comb plate (1), and one end of the door frame type steel bar (8) is embedded in the interior of the first bridge body (3).

4. A boltless comb plate telescopic device according to claim 1, It is characterized in that The first baffle plate (11) is located on the upper surface of the second baffle plate (12), and a rubber sealing strip is provided between the first baffle plate (11) and the second baffle plate (12).

5. The boltless comb plate telescopic device according to claim 1, It is characterized in that The side surface of the water-absorbing sheet (13) is connected to the second baffle (12).

6. A boltless comb plate telescopic device according to claim 1, It is characterized in that The water stop strip (10) is located below the second baffle plate (12).

7. The boltless comb plate telescopic device according to claim 1, It is characterized in that A damper (15) is arranged between the first bridge body (3) and the second bridge body (4), and a spring (16) is arranged on the side surface of the damper (15).

8. The boltless comb plate telescopic device according to claim 1, It is characterized in that A telescopic rod (17) is provided on the side surface of the first bridge body (3), and one end of the telescopic rod (17) away from the first bridge body (3) is connected to the second baffle (12).

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