Assembly type comb plate bridge expansion device

By setting assembly components on the bridge comb plate and using snap-fit ​​and threaded connection technology, the error problem of manual splicing of the comb plate was solved, realizing the rapid and stable splicing of the bridge comb plate and improving construction efficiency and quality.

CN224531441UActive Publication Date: 2026-07-21NANJING MEIXIN TRAFFIC MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING MEIXIN TRAFFIC MATERIAL CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When assembling existing prefabricated comb-plate bridge expansion joints manually, uneven force application and visual errors can easily cause slight displacement of the comb plates, resulting in misalignment of bolt holes and affecting construction efficiency.

Method used

The assembly components, including fittings, clips, and fasteners, are used to achieve precise docking and rapid splicing of the bridge comb plates through snap-fit ​​and threaded connections. The fasteners and fixing nuts are used to improve stability, and the anchoring sleeves and bolts are used to strengthen the fixation.

Benefits of technology

This enabled the rapid assembly of bridge comb plates, improving construction efficiency and stability, ensuring the accuracy of bolt hole positions, and enhancing the overall construction quality.

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Abstract

The utility model discloses a kind of assembled comb plate bridge expansion joints, including bridge comb plate, further include the assembly component of being set at the both sides of bridge comb plate, the assembly component includes assembly, clamping piece and fixing piece;The assembly and clamping piece are set at the both sides of bridge comb plate, and are mutually clamped, for connecting bridge comb plate, the top of clamping piece is penetrated by the fixing piece, for fixing assembly and clamping piece, the utility model is set by setting assembly component at the both sides of bridge comb plate, by clamping piece on assembly component, clamping is carried out on the assembly of another group bridge comb plate, accurate butt joint can be carried out, then fixed nut and fixing piece are threadedly connected, bridge comb plate can be quickly spliced and assembled, and the efficiency and stability of its processing are improved.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a prefabricated comb-tooth plate bridge expansion joint. Background Technology

[0002] The comb-plate bridge expansion joint is a special expansion device used in bridge engineering. When a bridge is affected by factors such as temperature changes and loads, slight expansion and contraction deformation will occur between the beam ends. At this time, the comb plate will undergo elastic deformation to absorb and disperse these deformation energies, thus ensuring the overall stability of the bridge and the safety of traffic.

[0003] The existing prefabricated comb plate bridge expansion joint has the following shortcomings in use: Currently, the splicing of comb plates relies on on-site assembly. During the splicing process, the comb plates need to be connected one by one and calibrated and tightened one by one with multiple sets of bolts. However, the entire process relies on manual operation, which makes it difficult to guarantee the accuracy of positioning and splicing. When manually adjusting the alignment of the comb plates, uneven force and visual errors can easily cause the comb plates to move by millimeters, which in turn causes misalignment of the subsequent bolt holes, thus affecting the overall construction efficiency.

[0004] Therefore, a prefabricated comb-plate bridge expansion joint is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems of the above-mentioned prefabricated comb-plate bridge expansion joint, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a prefabricated comb plate bridge expansion joint, which solves the problem that when comb plates are manually assembled, uneven force application and visual errors can easily cause millimeter-level micro-movements in the comb plates, resulting in misalignment of subsequent bolt holes and affecting the overall construction efficiency.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a prefabricated comb-plate bridge expansion joint, comprising a bridge comb plate, including:

[0009] An assembly assembly is disposed on both sides of a bridge comb plate, and the assembly assembly includes fittings, clips, and fasteners;

[0010] The fittings and clips are located on both sides of the bridge comb plate and interlock with each other to connect the bridge comb plate. The fasteners penetrate the top of the clips and are used to fix the fittings and clips.

[0011] As a preferred embodiment of the prefabricated comb plate bridge expansion joint of this utility model, the assembly parts and the clamps are respectively fixedly connected to both sides of the bridge comb plate, and the clamps are clamped onto the assembly parts of another set of bridge comb plates.

[0012] As a preferred embodiment of the prefabricated comb-plate bridge expansion joint of this utility model, multiple sets of fixing members are fixedly connected to the top of the assembly, and multiple sets of fixing holes are opened on the top of the clamping member, with the fixing members inserted into the inside of the fixing holes.

[0013] As a preferred embodiment of the prefabricated comb-plate bridge expansion joint of the present invention, a stabilizing plate is sleeved on the top of the fixing member.

[0014] As a preferred embodiment of the prefabricated comb-plate bridge expansion joint of this utility model, the top of the fixing member is threaded with a fixing nut, and the fixing nut abuts against the top of the stabilizing plate.

[0015] As a preferred embodiment of the prefabricated comb-plate bridge expansion joint of the present invention, the top of the bridge comb plate has multiple sets of connecting holes, and anchor bolts are inserted into the interior of the connecting holes.

[0016] In a preferred embodiment of the prefabricated comb-tooth plate bridge expansion joint of the present invention, the top of the anchoring sleeve is threaded with a bolt, and the top of the connecting hole is fixedly connected with a washer, wherein the bolt and the washer abut against each other.

[0017] As a preferred embodiment of the prefabricated comb-plate bridge expansion joint of the present invention, the bottom of the bridge comb plate has multiple sets of grooves.

[0018] The beneficial effects of this utility model are as follows: by setting assembly components on both sides of the bridge comb plate, and by snapping the clips on the assembly components onto the assembly parts of another set of bridge comb plates, precise docking can be achieved. Then, by threading the fixing nuts and fixing parts, the bridge comb plates can be quickly assembled, which improves the processing efficiency and stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of an assembled comb-plate bridge expansion joint according to the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the bridge comb plate on the prefabricated comb plate bridge expansion joint of this utility model.

[0022] Figure 3 This is a schematic diagram of the unfolded structure of the assembly components on the prefabricated comb plate bridge expansion joint of this utility model.

[0023] Figure 4 This is a schematic diagram of the unfolded structure of the anchor bolt sleeve on the prefabricated comb-plate bridge expansion joint of this utility model.

[0024] Figure descriptions: 100, bridge comb plate; 200, assembly component; 201, assembly part; 202, clamp; 203, fastener; 203a, fixing hole; 204, stabilizing plate; 205, fixing nut; 206, anchoring bolt; 206a, connecting hole; 207, bolt; 208, washer; 209, groove. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a prefabricated comb-plate bridge expansion joint device, which can achieve the effect of rapid splicing and assembly of the bridge comb plate 100. It includes the bridge comb plate 100, comprising:

[0031] Assembly component 200 is disposed on both sides of bridge comb plate 100. Assembly component 200 includes assembly part 201, fastener 202 and fastener 203.

[0032] The fitting 201 and the clip 202 are located on both sides of the bridge comb plate 100 and are interlocked with each other to connect the bridge comb plate 100. The fastener 203 passes through the top of the clip 202 and is used to fix the fitting 201 and the clip 202.

[0033] In use, the clip 202 is first clipped onto the assembly part 201 of another set of bridge comb plates 100, and the fixing nut 205 is threaded onto the fixing part 203, which enables the bridge comb plate 100 to be quickly spliced ​​and assembled, improving its processing efficiency and stability.

[0034] Example 2

[0035] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the mounting part 201 and the clip 202 are respectively fixedly connected to both sides of the bridge comb plate 100. By clipping the clip 202 onto the mounting part 201 of another set of bridge comb plates 100, the two sets of bridge comb plates 100 can be initially assembled.

[0036] Multiple sets of fasteners 203 are fixedly connected to the top of the assembly 201. Multiple sets of fixing holes 203a are opened on the top of the clip 202. The fasteners 203 are inserted into the fixing holes 203a. By clipping the clip 202 onto the assembly 201 of another set of bridge comb plates 100, the fasteners 203 will be inserted into the fixing holes 203a for stable connection.

[0037] The top of the fastener 203 is fitted with a stabilizing plate 204, and the top of the fastener 203 is threaded with a fixing nut 205. The fixing nut 205 abuts against the top of the stabilizing plate 204. By fitting the stabilizing plate 204 onto the top of multiple sets of fasteners 203 and by threading multiple sets of fixing nuts 205 onto the top of the fasteners 203, the two sets of bridge comb plates 100 can be further fixed, and the stability of the connection between the multiple sets of fasteners 203 and the fixing nuts 205 can be increased.

[0038] The bridge comb plate 100 has multiple sets of connecting holes 206a on its top. Anchoring sleeves 206 are inserted into the connecting holes 206a, and bolts 207 are threaded onto the top of the anchoring sleeves 206. Washers 208 are fixedly connected to the top of the connecting holes 206a, with the bolts 207 abutting against the washers 208. The anchoring sleeves 206 are first inserted into the connecting holes 206a from the bottom of the bridge comb plate 100, and then the bolts 207 are threaded onto the top of the anchoring sleeves 206. When slurry is poured between the bridge and the bridge comb plate 100, the anchoring sleeves 206 are pre-embedded, further improving the stability between the bridge and the bridge comb plate 100.

[0039] The bottom of the bridge comb plate 100 has multiple sets of grooves 209, which can increase the contact area with cement.

[0040] In use, first, clip 202 is attached to the fitting 201 of another set of bridge comb plates 100. At this time, the fixing part 203 will be inserted into the fixing hole 203a. Then, the stabilizing plate 204 is sleeved on the top of the multiple sets of fixing parts 203, and the multiple sets of fixing nuts 205 are threaded to the top of the fixing parts 203, which can fix the multiple sets of bridge comb plates 100. Next, the anchoring bolt sleeve 206 is inserted from the bottom of the bridge comb plate 100 into the connecting hole 206a, and the bolt 207 is threaded to the top of the anchoring bolt sleeve 206. Finally, the slurry can be poured into the gap between the bridge and the bridge comb plate 100 for strong fixation.

[0041] It is worth noting that the specific material properties of the aforementioned bridge comb plate 100 can be referenced from the bridge expansion joint device with model number GQF-240.

[0042] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A prefabricated comb-plate bridge expansion joint, comprising a bridge comb plate (100), characterized in that, include: Assembly assembly (200) is disposed on both sides of bridge comb plate (100), and the assembly assembly (200) includes assembly parts (201), fasteners (202) and fixing parts (203); The fitting (201) and the clip (202) are located on both sides of the bridge comb plate (100) and are interlocked with each other to connect the bridge comb plate (100). The fastener (203) passes through the top of the clip (202) and is used to fix the fitting (201) and the clip (202).

2. The prefabricated comb-plate bridge expansion joint according to claim 1, characterized in that: The fitting (201) and the clip (202) are respectively fixedly connected to both sides of the bridge comb plate (100), and the clip (202) is clipped onto the fitting (201) of another set of bridge comb plates (100).

3. The prefabricated comb-plate bridge expansion joint according to claim 1, characterized in that: Multiple sets of the fasteners (203) are fixedly connected to the top of the assembly (201), and multiple sets of fixing holes (203a) are opened on the top of the clip (202), and the fasteners (203) are inserted into the fixing holes (203a).

4. The prefabricated comb-plate bridge expansion joint according to claim 1, characterized in that: A stabilizing plate (204) is sleeved on the top of the fastener (203).

5. The prefabricated comb-plate bridge expansion joint according to claim 1, characterized in that: The top of the fastener (203) is threaded with a fixing nut (205), which abuts against the top of the stabilizing plate (204).

6. The prefabricated comb-plate bridge expansion joint according to claim 1, characterized in that: The top of the bridge comb plate (100) has multiple sets of connecting holes (206a), and anchor bolts (206) are inserted into the connecting holes (206a).

7. The prefabricated comb-plate bridge expansion joint according to claim 6, characterized in that: The top of the anchoring sleeve (206) is threaded with a bolt (207), and the top of the connecting hole (206a) is fixedly connected with a washer (208), with the bolt (207) abutting against the washer (208).

8. The prefabricated comb-tooth bridge expansion joint according to claim 1, characterized in that: The bottom of the bridge comb plate (100) has multiple sets of grooves (209).