Bolt-free damping type multidirectional displacement comb plate type telescopic device

Abstract

The utility model provides a bolt-free damping type multidirectional displacement comb plate type telescopic device which comprises a main toothed plate, an auxiliary toothed plate, a main toothed steel plate, an auxiliary toothed steel plate, a damping assembly and an anchoring assembly, the main toothed plate and the auxiliary toothed plate are oppositely arranged, and concave-convex structures matched with each other are arranged on the main toothed plate and the auxiliary toothed plate respectively; the main tooth steel plate is fixed to the lower surface of the main tooth plate and extends to the position below the auxiliary tooth plate. The damping assembly is arranged below the auxiliary tooth plate, and the auxiliary tooth steel plate is fixed to the upper surface of the damping assembly and makes sliding contact with the lower surface of the main tooth steel plate. The number of the anchoring assemblies is two, and the anchoring assemblies are fixed to the ends, away from each other, of the main toothed plate and the auxiliary toothed plate respectively and poured in the beam body. According to the technical scheme provided by the utility model, bolts are not needed, so that the potential safety hazard of passing vehicles caused by bolt looseness of the telescopic device using the bolts is eliminated, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge expansion and contraction devices, and relates to a multi-directional displacement comb-shaped plate expansion and contraction device, in particular to a bolt-free shock-absorbing multi-directional displacement comb-shaped plate expansion and contraction device. Background Art

[0002] The bridge expansion device is used to connect the two parts of the bridge structure to adapt to the displacement changes of the beam caused by temperature, wind force, creep, etc. It is an important component of the bridge.

[0003] The current multi-directional displacement comb-shaped plate telescopic device, whether it is a riding seam type or a cross-seam type, uses comb teeth to slide against each other to cross-match, and a stainless steel plate is set at the bottom of the comb tooth group to provide a sliding surface. In order to achieve multi-directional displacement, a variety of displacement structures are often set up, and the comb tooth plate is connected to the displacement structure by bolts. This connection method is prone to loosening in a vibration environment caused by long-term and high-frequency vehicle traffic. In severe cases, loose bolts will cause damage to passing vehicles, posing more and greater road safety hazards. At the same time, because the comb tooth plate is a single-plate lifting structure, it does not have a shock absorption function and cannot adapt to the multi-directional deformation of the bridge. Utility Model Content

[0004] The utility model aims to provide a bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device to solve the technical problems existing in the prior art that the device cannot adapt well to the multi-directional deformation of the bridge and the bolts in the device are easy to loosen in the long-term vibration environment on the bridge, forming a safety hazard for vehicle driving.

[0005] In order to achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] A boltless shock-absorbing multi-directional displacement comb-shaped plate telescopic device, comprising a main tooth plate, an auxiliary tooth plate, a main tooth steel plate, an auxiliary tooth steel plate, a shock-absorbing assembly and an anchor assembly, wherein the main tooth plate and the auxiliary tooth plate are arranged opposite to each other, and the main tooth plate and the auxiliary tooth plate are respectively provided with mutually matching concave and convex structures;

[0007] The main tooth steel plate is fixed to the lower surface of the main tooth plate and extends to the bottom of the auxiliary tooth plate;

[0008] The shock absorbing assembly is arranged below the auxiliary tooth plate, and the auxiliary tooth steel plate is fixed on the upper surface of the shock absorbing assembly and is in sliding contact with the lower surface of the main tooth steel plate;

[0009] The number of the anchoring components is two groups, which are respectively fixed on the ends of the main tooth plate and the auxiliary tooth plate which are far away from each other and cast in the beam body.

[0010] The shock absorbing assembly comprises an upper connecting plate, a lower connecting plate and a high damping shock absorbing seat arranged therebetween, and a U-shaped groove is correspondingly arranged on the lower surface of the upper connecting plate and the upper surface of the lower connecting plate;

[0011] The high damping shock absorbing seat is arranged in a cubic shape in the U-shaped grooves of the upper connecting plate and the lower connecting plate, and the auxiliary tooth steel plate is fixed on the upper surface of the upper connecting plate.

[0012] An auxiliary tooth plate is extended from the upper connecting plate toward one end close to the main tooth plate, and a limiting boss is arranged at one end of the upper connecting plate away from the main tooth plate.

[0013] The extending direction of the U-shaped groove is perpendicular to the connecting line of the main tooth plate and the auxiliary tooth plate.

[0014] The anchoring assembly includes a positioning plate, an anchoring plate and anchoring steel bars. The positioning plate and the anchoring plate are integrally formed in an "L" shape. The anchoring steel bars are bent in a geometric shape. The ends of the anchoring steel bars are welded to the positioning plate. The positioning plate and the anchoring plate are welded to the lower surface of the main tooth plate.

[0015] The concave-convex structures that cooperate with each other on the main tooth plate and the auxiliary tooth plate are rectangular teeth, trapezoidal teeth or arc teeth.

[0016] It also includes a waterproof plate, which is located below the main tooth plate and the auxiliary tooth plate and is arranged between two adjacent sections of the beam body.

[0017] The beneficial effect of the utility model is that the utility model provides a bolt-free shock-absorbing multi-directional comb-shaped plate telescopic device, which does not require the use of bolts and directly fixes the anchor assembly to the main tooth plate and the auxiliary tooth plate. While effectively improving the construction speed, it also eliminates the potential safety hazard to passing vehicles caused by loose bolts in the telescopic device using bolts, thereby reducing maintenance costs.

[0018] In addition, the shock absorbing assembly provided by the utility model provides support for the auxiliary tooth plate and the auxiliary tooth steel plate by providing an upper connecting plate, and the high damping shock absorbing seat is arranged between the upper connecting plate and the lower connecting plate, so that when receiving irregular multi-directional forces, the high damping shock absorbing seat can undergo uneven deformation and absorb multi-directional forces, thereby achieving multi-directional displacement and reducing deformation and damage of each tooth plate. In addition, by arranging the high damping shock absorbing seat in a U-shaped groove whose extension direction is perpendicular to the line connecting the main tooth plate and the auxiliary tooth plate, the high damping shock absorbing seat can be further assisted in absorbing multi-directional forces, further improving the device's ability to absorb multi-directional forces and undergo multi-directional displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model when it is a cross-seam type;

[0020] Figure 2for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model when it is a saddle-seam type;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of the local enlargement 1 at B in the middle;

[0023] Figure 5 It is a structural schematic diagram of the utility model when the tooth shapes of the main tooth plate and the auxiliary tooth plate are arc-shaped;

[0024] Figure 6 It is a structural schematic diagram of the utility model when the tooth shapes of the main tooth plate and the auxiliary tooth plate are rectangular;

[0025] Figure 7 It is a cross-sectional view of the upper connecting plate in the utility model;

[0026] Figure 8 This is a bottom view of the upper connecting plate in the utility model;

[0027] Fig. 9 It is a cross-sectional view of the lower connecting plate in the utility model;

[0028] Fig.10 It is a top view of the lower connecting plate in the utility model;

[0029] Fig.11 It is a structural schematic diagram of the anchoring assembly in the utility model.

[0030] Explanation of marks in the figure: 1. Main tooth plate, 2. Auxiliary tooth plate, 3. Main tooth steel plate, 4. Auxiliary tooth steel plate, 5. Beam body A, 6. Upper connecting plate, 7. Lower connecting plate, 8. High damping shock absorber seat, 9. U-shaped groove, 10. Limiting boss, 11. Positioning plate, 12. Anchor plate, 13. Anchor steel bar, 14. Waterproof board, 15. Beam body B. DETAILED DESCRIPTION

[0031] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 4 As shown, the utility model provides a bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device, which can be a cross-seam type, such as Figure 1 , Figure 2 As shown, it can also be a saddle-seam type, such as Figure 3 , Figure 4As shown, it includes a main tooth plate 1, an auxiliary tooth plate 2, a main tooth steel plate 3, an auxiliary tooth steel plate 4, a shock absorbing assembly, an anchor assembly, and a waterproof plate 14, wherein the main tooth plate 1 and the auxiliary tooth plate 2 are arranged opposite to each other, and the main tooth plate 1 and the auxiliary tooth plate 2 are respectively provided with mutually matching concave and convex structures, and the concave and convex structures can be rectangular teeth, trapezoidal teeth or arc teeth, etc. Figure 5 , Figure 6 As shown, the specific shape of the concave-convex structure can be selected according to construction requirements and is not specifically limited in this embodiment.

[0033] The main tooth steel plate 3 and the auxiliary tooth steel plate 4 are both stainless steel plates, fixed on the lower surface of the main tooth plate 1 and extending to the bottom of the auxiliary tooth plate 2; the shock absorbing assembly is arranged below the auxiliary tooth plate 2, and the auxiliary tooth steel plate 4 is a stainless steel plate, fixed on the upper surface of the shock absorbing assembly and in sliding contact with the lower surface of the main tooth steel plate 3; the waterproof plate 14 is located below the main tooth plate 1 and the auxiliary tooth plate 2, and is arranged between two adjacent sections of the beam body. The main tooth steel plate 3 and the auxiliary tooth steel plate 4 in sliding contact can play a certain protective role on the waterproof plate 14, prevent debris and other debris on the bridge road surface from falling into the waterproof plate 14, and extend the service life of the waterproof plate 14. The number of anchoring assemblies is two groups, which are respectively fixed on the ends of the main tooth plate 1 and the auxiliary tooth plate 2 that are far away from each other, and are used to be cast in the beam body A5 and the beam body B15 respectively.

[0034] Further, such as Figure 2 , Figures 7 to 10 As shown, the shock absorbing assembly in this embodiment includes an upper connecting plate 6, a lower connecting plate 7 and a high damping shock absorbing seat 8 arranged therebetween, wherein, in order to provide support for the auxiliary gear steel plate 4, the auxiliary gear steel plate 4 is fixed on the upper surface of the upper connecting plate 6. In order to facilitate the installation of the high damping shock absorbing seat 8 and to assist the high damping shock absorbing seat 8 to better absorb multi-directional forces and to cause multi-directional displacement, the lower surface of the upper connecting plate 6 and the upper surface of the lower connecting plate 7 in this embodiment are correspondingly provided with a U-shaped groove 9, and the extension direction of the U-shaped groove 9 is perpendicular to the connecting line between the main gear plate 1 and the auxiliary gear plate 2. The high damping shock absorbing seat 8 is arranged in a cubic shape in the U-shaped groove 9 of the upper connecting plate 6 and the lower connecting plate 7. In order to enable the high damping shock absorbing seat 8 to achieve multi-directional displacement, the high damping shock absorbing seat 8 is selected to be a material such as high damping rubber or polyurethane in this embodiment.

[0035] When the passing vehicles generate vibrations, the vibrations can be absorbed by the high damping shock absorbing seat 8, thereby reducing the impact and noise. When the beam body is displaced due to temperature, wind force, creep and other reasons, in addition to the relative sliding of the main tooth plate 1 and the auxiliary tooth plate 2, the high damping shock absorbing seat 8 can be deformed or multi-directionally displaced in the U-shaped groove 9 along the extension direction of the U-shaped groove 9, thereby improving the multi-directional displacement capability of the overall telescopic device.

[0036] Furthermore, in order to better provide support for the auxiliary tooth steel plate 4 and prevent debris such as slag from falling onto the waterproof plate 14, the upper connecting plate 6 extends the auxiliary tooth plate 2 toward one end close to the main tooth plate 1, and in order to prevent the main tooth steel plate 3 from colliding with the beam body during the relative sliding process relative to the auxiliary tooth steel plate 4, the main tooth steel plate 3 is ensured to be able to slide flexibly relative to the auxiliary tooth steel plate 4. Figure 2 , Figure 7 As shown, a limiting boss 10 is provided at one end of the upper connecting plate 6 away from the main tooth plate 1 , and the height of the limiting boss 10 is the same as the height of the main tooth steel plate 3 and the auxiliary tooth steel plate 4 after being superimposed.

[0037] In addition, in order to cast the device provided in this embodiment into the ends of the beam body A5 and the beam body B15 respectively without using bolts, as shown in FIG. Fig.11 As shown, the anchor assembly in this embodiment includes a positioning plate 11, an anchor plate 12 and an anchor steel bar 13. The positioning plate 11 and the anchor plate 12 are integrally formed in an "L" shape. The anchor steel bar 13 is bent in a geometric shape. The end of the anchor steel bar 13 is welded to the positioning plate 11. The positioning plate 11 and the anchor plate 12 are welded to the lower surface of the main tooth plate 1. During actual pouring, in order to ensure and improve the firmness of the connection, the anchor steel bar 13 can be welded to the cross steel bar and the gate steel bar on the beam body. Directly fixing the anchor assembly to the main tooth plate 1 and the auxiliary tooth plate 2 can effectively increase the construction speed. Not using bolts can avoid the need to maintain loose bolts, thereby reducing maintenance costs.

[0038] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A boltless shock-absorbing multi-directional displacement comb-shaped plate telescopic device, characterized in that: It comprises a main tooth plate (1), an auxiliary tooth plate (2), a main tooth steel plate (3), an auxiliary tooth steel plate (4), a shock absorbing assembly and an anchoring assembly. The main tooth plate (1) and the auxiliary tooth plate (2) are arranged opposite to each other, and the main tooth plate (1) and the auxiliary tooth plate (2) are respectively provided with concave and convex structures that cooperate with each other. The main tooth steel plate (3) is fixed on the lower surface of the main tooth plate (1) and extends to the bottom of the auxiliary tooth plate (2); The shock absorbing assembly is arranged below the auxiliary tooth plate (2), and the auxiliary tooth steel plate (4) is fixed on the upper surface of the shock absorbing assembly and is in sliding contact with the lower surface of the main tooth steel plate (3); The anchoring components are in two groups, which are respectively fixed to the ends of the main tooth plate (1) and the auxiliary tooth plate (2) which are far away from each other and cast in the beam body.

2. A bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 1, characterized in that: The shock absorbing assembly comprises an upper connecting plate (6), a lower connecting plate (7) and a high damping shock absorbing seat (8) arranged therebetween, and the lower surface of the upper connecting plate (6) and the upper surface of the lower connecting plate (7) are correspondingly provided with U-shaped grooves (9); The high damping shock absorbing seat (8) is arranged in a cubic shape in the U-shaped groove (9) of the upper connecting plate (6) and the lower connecting plate (7), and the auxiliary gear steel plate (4) is fixed on the upper surface of the upper connecting plate (6).

3. The bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 2 is characterized in that: The auxiliary tooth plate (2) is extended from the upper connecting plate (6) toward the end close to the main tooth plate (1), and a limiting boss (10) is provided at the end of the upper connecting plate (6) away from the main tooth plate (1).

4. The bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 2, characterized in that: The extending direction of the U-shaped groove (9) is perpendicular to the connecting line between the main tooth plate (1) and the auxiliary tooth plate (2).

5. The bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 1, characterized in that: The anchoring assembly comprises a positioning plate (11), an anchoring plate (12) and an anchoring steel bar (13); the positioning plate (11) and the anchoring plate (12) are integrally formed and are in an "L" shape; the anchoring steel bar (13) is bent in a geometric shape; the end of the anchoring steel bar (13) is welded to the positioning plate (11); and the positioning plate (11) and the anchoring plate (12) are welded to the lower surface of the main tooth plate (1).

6. The bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 1, characterized in that: The concave-convex structures that cooperate with each other on the main tooth plate (1) and the auxiliary tooth plate (2) are rectangular teeth, trapezoidal teeth or arc-shaped teeth.

7. The bolt-free shock-absorbing multi-directional displacement comb-shaped plate telescopic device according to claim 1, characterized in that: It also includes a waterproof plate (14), which is located below the main tooth plate (1) and the auxiliary tooth plate (2) and is arranged between two adjacent beam sections.

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