Highway bridge comb plate telescopic device of anti-falling plate

Abstract

The utility model discloses a highway bridge comb plate expansion device capable of preventing plates from falling off, which comprises a main body unit comprising a cross-joint comb plate and a fixed comb plate matched with the cross-joint comb plate, and a plurality of groups of comb teeth are arranged on the opposite surfaces of the cross-joint comb plate and the fixed comb plate; the limiting unit comprises connecting plates fixedly installed on the two sides of the bottom end of the seam crossing comb plate, limiting cylinders are fixedly installed at the bottom ends of the two sets of connecting plates, guide blocks are symmetrically installed at the bottom end of the seam crossing comb plate and located on the left sides of the limiting cylinders, and connecting blocks are symmetrically installed at the bottom end of the fixed comb plate. The guide blocks guide the limiting rods to be accurately embedded into the limiting cylinders, the cross seams are stably connected, the comb plate is fixed, free stretching and retracting of the comb plate are guaranteed, warping is prevented, stability and safety are improved, and the problems of loosening and tooth warping are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction, in particular to a comb plate telescopic device for a highway bridge with an anti-slip plate. Background Art

[0002] Bridge expansion devices are an important part of bridge structures. They are mainly used to meet the expansion and displacement requirements of bridges caused by temperature changes, vehicle loads and other factors, while ensuring the overall stability and safety of the bridge. With the rapid development of transportation, the performance requirements for bridge expansion devices are becoming increasingly higher.

[0003] The telescopic device is mainly composed of a fixed comb plate and a cross-slit comb plate. As the usage time accumulates, the fixed comb plate and the cross-slit comb plate will gradually lose their tightness due to various reasons, causing them to move unnecessary or "warp" when vehicles pass by. This situation not only reduces the stability of the telescopic device, but may also pose a potential threat to the driving safety of passing vehicles. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned existing comb plate telescopic device for highway bridges with an anti-slip plate, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a comb plate telescopic device for a highway bridge with an anti-slip plate, which is suitable for solving the problem that the fixed comb plates and the cross-seam comb plates in the telescopic device are prone to loosening over time, causing warping of the teeth, reducing stability and threatening driving safety.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a comb plate telescopic device for a highway bridge with an anti-slip plate, comprising:

[0008] The main unit comprises a cross-slot comb plate and a fixed comb plate matched with the cross-slot comb plate, wherein the cross-slot comb plate and the fixed comb plate are provided with a plurality of groups of comb teeth on opposite surfaces thereof;

[0009] The limiting unit includes connecting plates fixedly installed on both sides of the bottom end of the cross-slot comb tooth plate, limiting cylinders are fixedly installed on the bottom ends of the two groups of connecting plates, guide blocks are symmetrically installed on the bottom ends of the cross-slot comb tooth plates, and the guide blocks are located on the left side of the limiting cylinder, and connecting blocks are symmetrically installed on the bottom end of the fixed comb tooth plate, and limiting rods are fixedly installed on one side of the two groups of connecting blocks close to the cross-slot comb tooth plates, and the limiting rods pass through one side of the guide block and are slidably connected to the limiting cylinder.

[0010] As a preferred solution of the comb plate telescopic device for a highway bridge with an anti-slip plate as described in the utility model, the two groups of guide blocks include a guide groove opened on one side of the guide block, and a through groove is opened on the other side of the guide block, the guide groove and the through groove are connected, and the two sides of the inner wall of the guide groove are arranged in an arc shape.

[0011] As a preferred solution of the comb plate telescopic device for a highway bridge with an anti-slip plate described in the utility model, the several groups of comb teeth arranged on the cross-slot comb plate and the fixed comb plate are staggered, and the cross-slot comb plate and the fixed comb plate are engaged through the staggered comb teeth.

[0012] As a preferred solution of the comb plate telescopic device for a highway bridge of the anti-slip plate described in the utility model, threaded holes are arranged on the top ends of the cross-slot comb plate and the fixed comb plate.

[0013] As a preferred solution of the comb plate telescopic device for a highway bridge with an anti-drop plate described in the utility model, the materials of the limit rod and the limit cylinder are both high-carbon steel.

[0014] As a preferred solution of the comb plate telescopic device for a highway bridge with an anti-slip plate as described in the utility model, the cross-seam comb plate is composed of a carbon-polymer composite material and an embedded steel plate, the carbon-polymer composite material and the embedded steel plate are respectively located at the upper layer and the bottom layer, and the fixed comb plate is made of a carbon-polymer composite material.

[0015] The beneficial effects of the utility model are as follows: during installation, the guide block guides the limit rod to be accurately embedded in the limit cylinder, firmly connecting the span seam and the fixed comb plate, which not only ensures its free extension and contraction, but also prevents warping, improves stability and safety, and solves the problem of loose and warped teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1This is a schematic diagram of the overall structure of a comb plate telescopic device for a highway bridge with an anti-slip plate proposed by the utility model;

[0018] Figure 2 A schematic diagram of the bottom structure of a comb plate telescopic device for a highway bridge with an anti-slip plate proposed by the utility model;

[0019] Figure 3 The utility model provides a schematic diagram of the guide block structure of a comb plate telescopic device for a highway bridge with an anti-slip plate.

[0020] Description of the drawings: 100, main unit; 101, cross-slit comb plate; 102, fixed comb plate; 200, limit unit; 201, connecting block; 202, limit rod; 203, guide block; 2031, guide groove; 2032, through groove; 204, connecting plate; 205, limit cylinder. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Reference Figure 1-Figure 3 , which is an embodiment of the utility model, provides a highway bridge comb plate telescopic device with an anti-slip plate, including a main unit 100 and a limit unit 200;

[0026] The main unit 100 includes a cross-slot comb plate 101 and a fixed comb plate 102 matched with the cross-slot comb plate 101. The opposite surfaces of the cross-slot comb plate 101 and the fixed comb plate 102 are provided with a plurality of comb teeth to ensure that the upper load-bearing structure of the bridge can operate stably during normal expansion and contraction and use.

[0027] The limiting unit 200 includes connecting plates 204 fixedly installed on both sides of the bottom end of the cross-slot comb tooth plate 101, and the bottom ends of the two groups of connecting plates 204 are fixedly installed with limiting cylinders 205. The bottom end of the cross-slot comb tooth plate 101 is symmetrically installed with guide blocks 203, and the guide blocks 203 are located on the left side of the limiting cylinder 205. The bottom end of the fixed comb tooth plate 102 is symmetrically installed with connecting blocks 201. The two groups of connecting blocks 201 are fixedly installed with limiting rods 202 on one side close to the cross-slot comb tooth plate 101, and the limiting rods 202 pass through one side of the guide blocks 203 and are slidably connected to the limiting cylinder 205. During the installation process In the embodiment, the limiting rod 202 is accurately embedded in the limiting tube 205 by guiding the guide block 203. This connection method cleverly combines the cross-slot comb plate 101 and the fixed comb plate 102 firmly together. This design ensures that the cross-slot comb plate 101 and the fixed comb plate 102 can be freely adjusted forward and backward to meet different needs. At the same time, it effectively avoids the warping phenomenon between the two due to long-term use or external factors, and solves the problem that the comb plate in the traditional structure is easy to loosen and cause warping over time, thereby significantly improving the overall stability and safety of the structure.

[0028] The two groups of guide blocks 203 include a guide groove 2031 opened on one side of the guide block 203, and a through groove 2032 is opened on the other side of the guide block 203. The guide groove 2031 and the through groove 2032 are connected, and the two sides of the inner wall of the guide groove 2031 are arranged in an arc shape. The limit rod 202 enters from the guide groove 2031, and finally passes through the through groove 2032 to enter the limit tube 205. When the limit rod 202 enters the guide groove 2031, the inner walls on both sides are arranged in an arc shape to guide the limit rod 202 to ensure that it can enter 2302, thereby accurately inserting into the limit rod 202. The through groove 2032 limits the limit rod 202 to ensure the stability of its connection.

[0029] The several groups of comb teeth arranged on the cross-slot comb plate 101 and the fixed comb plate 102 are staggered, and the cross-slot comb plate 101 and the fixed comb plate 102 are meshed through the staggered comb teeth, which can accommodate the expansion and contraction deformation of the bridge.

[0030] The top ends of the cross-gap comb plate 101 and the fixed comb plate 102 are both provided with threaded holes, which cooperate with high-strength anchor bolts to firmly fix the telescopic device on the bridge structure to ensure that it will not loosen or fall off during long-term use.

[0031] The materials of the limiting rod 202 and the limiting cylinder 205 are both high-carbon steel. The high-carbon steel has high strength and excellent wear resistance, and can withstand large loads and frequent plugging and unplugging operations.

[0032] The cross-seam comb plate 101 is composed of a carbon-polymer composite material and an embedded steel plate, which are located at the upper layer and the bottom layer respectively. The fixed comb plate 102 is made of a carbon-polymer composite material, which has high strength and rigidity as well as good corrosion resistance and durability. The embedded steel plate can improve the load-bearing capacity of the cross-seam comb plate 101, while the carbon-polymer composite material can protect the steel plate from corrosion and wear.

[0033] During use and installation, the limiting rod 202 is accurately embedded in the limiting tube 205 by guiding the guide block 203. This connection method cleverly combines the cross-slot comb plate 101 and the fixed comb plate 102 firmly together. This design ensures that the cross-slot comb plate 101 and the fixed comb plate 102 can be freely telescoped forward and backward to adapt to different needs. At the same time, it effectively avoids the warping between the two due to long-term use or external factors, and solves the problem of the comb plate in the traditional structure becoming loose and warping over time, thereby significantly improving the overall stability and safety of the structure.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A comb plate telescopic device for a highway bridge with an anti-slip plate, characterized in that: include: A main body unit (100) comprises a cross-slot comb tooth plate (101) and a fixed comb tooth plate (102) mounted to match the cross-slot comb tooth plate (101), wherein the opposite surfaces of the cross-slot comb tooth plate (101) and the fixed comb tooth plate (102) are provided with a plurality of groups of comb teeth; The limiting unit (200) comprises connecting plates (204) fixedly mounted on both sides of the bottom end of the cross-slot comb tooth plate (101); limiting cylinders (205) are fixedly mounted on the bottom ends of the two groups of connecting plates (204); guide blocks (203) are symmetrically mounted on the bottom end of the cross-slot comb tooth plate (101), and the guide blocks (203) are located on the left side of the limiting cylinder (205); connecting blocks (201) are symmetrically mounted on the bottom end of the fixed comb tooth plate (102); limiting rods (202) are fixedly mounted on one side of the two groups of connecting blocks (201) close to the cross-slot comb tooth plate (101), and the limiting rods (202) pass through one side of the guide blocks (203) and are slidably connected to the limiting cylinder (205).

2. The comb plate telescopic device for highway bridges with an anti-slip plate according to claim 1, characterized in that: The two groups of guide blocks (203) comprise a guide groove (2031) provided on one side of the guide block (203), and a through groove (2032) provided on the other side of the guide block (203); the guide groove (2031) and the through groove (2032) are connected to each other, and both sides of the inner wall of the guide groove (2031) are arranged in an arc shape.

3. The comb plate telescopic device for highway bridges with an anti-slip plate according to claim 1, characterized in that: The plurality of groups of comb teeth arranged on the cross-slot comb tooth plate (101) and the fixed comb tooth plate (102) are arranged in a staggered manner, and the cross-slot comb tooth plate (101) and the fixed comb tooth plate (102) are meshed through the staggered comb teeth.

4. The comb plate telescopic device for highway bridges with an anti-slip plate according to claim 1, characterized in that: The top ends of the cross-slot comb plate (101) and the fixed comb plate (102) are both provided with threaded holes.

5. The comb plate telescopic device for highway bridges with an anti-drop plate according to claim 1, characterized in that: The materials of the limiting rod (202) and the limiting cylinder (205) are both high carbon steel.

6. The comb plate telescopic device for highway bridges with an anti-slip plate according to claim 1, characterized in that: The cross-slot comb plate (101) is composed of a carbon-polymer composite material and an embedded steel plate, wherein the carbon-polymer composite material and the embedded steel plate are located at the upper layer and the bottom layer respectively, and the fixed comb plate (102) is made of a carbon-polymer composite material.

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