Removal-free tool for metro monolithic track bed expansion joint
By using expansion joint removal-free tools in subway track bed construction, the problems of difficulty in controlling the depth of expansion joint removal and damage to the track bed surface have been solved, achieving the effects of simplified construction, cost savings and improved appearance quality.
Patent Information
- Application Number
- CN202423042265.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, during track bed construction, it is difficult to control the depth of expansion joint removal and it is easy to damage the track bed surface, affecting the appearance.
The subway integral track bed expansion joint non-removal tooling is adopted. By setting asphalt wooden boards between the expansion joints and fixing square tubes with rivets, concrete is poured and the square tubes are removed when the concrete is initially set, so asphalt hemp rope filling can be achieved without removing the asphalt.
Simplify construction procedures, shorten construction time, save costs, avoid damage to the track bed surface, and improve construction efficiency and appearance quality.
Smart Images
Figure CN223561963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of underground line bed construction technology, concretely is metro integral track bed expansion joint exempt from removing frock. BACKGROUND
[0002] Track bed expansion joint refers to a kind of gap set in integral track bed, for relieving stress generated by temperature variation, concrete shrinkage and other factors of track bed, prevent track bed from appearing crack, the setting of expansion joint can guarantee the stability and durability of track bed, also help to improve the smoothness and comfort of track.
[0003] Currently, expansion joint adopts 20mm thick pitch hemp when track bed is constructed, and the method of removing is used to seal top and pour pitch hemp in expansion joint in later period, the depth of expansion joint is not easy to control in this method, and track bed surface is easily damaged to affect the appearance of track bed, to solve the above technical problems, therefore we design metro integral track bed expansion joint exempt from removing frock. UTILITY MODEL CONTENT
[0004] The utility model aims at providing metro integral track bed expansion joint exempt from removing frock, has the advantage of exempting from removing, solve the problem that the method of removing is used to seal top and pour pitch hemp in expansion joint in later period, the depth is not easy to control, and track bed surface is easily damaged to affect the appearance of track bed.
[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: metro integral track bed expansion joint exempt from removing frock, including structure bottom plate, its characterized in that: the top of structure bottom plate is fixed with expansion joint pitch wood board, the top of expansion joint pitch wood board is provided with pitch wood board surface, the front and back sides of expansion joint pitch wood board are both concrete track bed, the left and right sides of the top of pitch wood board surface are both installed with steel rail main body and penetrate, the top of pitch wood board surface is inlaid with square tube, the top of square tube is installed with rivet and penetrates, the center of the top of expansion joint pitch wood board penetrates and inlays with connecting sleeve pipe.
[0006] Preferably, the number of rivets is eight, and they are evenly distributed on the top of the square tube, the bottom of the rivet penetrates the square tube and is fixedly connected with the top of the expansion joint pitch wood board.
[0007] Preferably, the square tube is made of stainless steel, and the top of the square tube is fixedly connected with a handle.
[0008] Preferably, the width of the expansion joint pitch wood board is 2400mm, the center of the top of the pitch wood board surface is provided with 20mm thick pitch hemp, and the square tube is arranged on the top of the pitch wood board.
[0009] Preferably, the number of square tubes is two, and they are distributed side by side on the top of the asphalt wood board, and the size of the two square tubes is 1200*20*50mm.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] The utility model discloses a kind of asphalt wood boards between adjacent two expansion joints are set, then eight rivets are used to fix square tube and lower asphalt wood board together, then the height of asphalt wood board is fixed, finally pours concrete between asphalt wood board, removes square tube by handle when concrete reaches initial setting, carries out the process of next expansion joint filling asphalt muscle, entire process does not need to use the method of removing to carry out expansion joint top filling asphalt muscle, operation is very simple, simplifies construction procedure, can reach shorten construction operation time, save cost. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a sectional structure schematic view of the utility model;
[0013] Figure 2 It is a local structure schematic view of the utility model;
[0014] Figure 3 It is a top view structure schematic view of the utility model.
[0015] In the drawing: 1, structure bottom plate;2, expansion joint asphalt wood board;3, handle;4, asphalt wood board surface;5, connecting sleeve;6, rivet;7, steel rail main body;8, square tube. DETAILED DESCRIPTION
[0016] Please refer to Figures 1-3 Metro integral track bed expansion joint removes tool, including structure bottom plate 1, it is characterized in that: the top of structure bottom plate 1 is fixed with expansion joint asphalt wood board 2, the top of expansion joint asphalt wood board 2 is provided with asphalt wood board surface 4, the front and rear sides of expansion joint asphalt wood board 2 are concrete track bed, and the left and right sides of the top of asphalt wood board surface 4 are all installed with steel rail main body 7, the top of asphalt wood board surface 4 is embeddedly installed with square tube 8, the top of square tube 8 is installed with rivet 6, and the center of the top of expansion joint asphalt wood board 2 is embeddedly installed with connecting sleeve 5.
[0017] Please refer to Figure 1 And Figure 3 The number of rivet 6 is eight, and evenly distributed on the top of square tube 8, and the bottom of rivet 6 penetrates square tube 8 and is fixedly connected with the top of expansion joint asphalt wood board 2.
[0018] Please refer to Figure 2The square tube 8 is made of stainless steel, and the top of the square tube 8 is fixedly connected with a handle 3. The handle 3 can be used to conveniently lift the square tube 8 upward, thereby saving manual labor.
[0019] Please refer to Figure 1 and Figure 3 The width of the expansion joint asphalt wood board 2 is 2400mm, and a 20mm-thick asphalt mesh is arranged at the center of the top of the asphalt wood board surface 4. The square tube 8 is arranged on the top of the asphalt wood board.
[0020] Please refer to Figure 3 The number of the square tube 8 is two, and the two square tubes 8 are distributed side by side on the top of the asphalt wood board. The size of the two square tubes 8 is 1200*20*50mm.
[0021] In use, the expansion joint asphalt wood board 2 is poured by concrete at a certain interval, the expansion joint asphalt wood board 2 is arranged between adjacent two expansion joints, the expansion joint asphalt wood board 2 is placed vertically, then the two square tubes 8 with the size of 1200*20*50mm are placed above the asphalt wood board, the square tube 8 and the lower asphalt wood board are fixed together by using eight rivets 6, then the height of the asphalt wood board is fixed, finally, the concrete is poured between the expansion joint asphalt wood boards 2, the square tube 8 is taken out by the handle 3 when the concrete reaches the initial setting, and the next process of filling the asphalt mesh in the expansion joint is performed. The whole process does not need to use the method of removing to fill the asphalt mesh in the expansion joint, the operation is very simple, the construction process is simplified, the construction operation time is shortened, and the cost is saved.
[0022] In summary: the metro overall track bed expansion joint removal-free tooling, through the structure bottom plate 1, the expansion joint asphalt wood board 2, the handle 3, the asphalt wood board surface 4, the connecting sleeve 5, the rivet 6, the steel rail main body 7 and the square tube 8, solves the problem that the expansion joint is filled with asphalt mesh by removing in the later period, and the depth is not easy to control and the track bed surface is easily damaged to affect the appearance of the track bed.
Claims
1. A tooling system for eliminating the need to remove expansion joints in the overall track bed of a subway, including a structural base plate (1), characterized in that: The top of the structural base plate (1) is fixed with an expansion joint asphalt board (2), the top of the expansion joint asphalt board (2) is provided with an asphalt board surface (4), the front and rear sides of the expansion joint asphalt board (2) are both concrete track beds, the left and right sides of the top of the asphalt board surface (4) are both through-installed with rail bodies (7), the top of the asphalt board surface (4) is inlaid with a square tube (8), the top of the square tube (8) is through-installed with a rivet (6), and the center of the top of the expansion joint asphalt board (2) is through-installed with a connecting sleeve (5).
2. The tooling for eliminating the removal of expansion joints in the integral track bed of the subway as described in claim 1, characterized in that: The number of rivets (6) is eight, and they are evenly distributed on the top of the square tube (8). The bottom of the rivets (6) penetrates the square tube (8) and is fixedly connected to the top of the expansion joint asphalt wood board (2).
3. The tooling for eliminating the removal of expansion joints in the integral track bed of the subway as described in claim 1, characterized in that: The square tube (8) is made of stainless steel, and a handle (3) is fixedly connected to the top of the square tube (8).
4. The tooling for eliminating the removal of expansion joints in the integral track bed of the subway as described in claim 1, characterized in that: The width of the expansion joint asphalt board (2) is 2400mm. A 20mm thick asphalt hemp fiber is provided at the center of the top of the asphalt board surface (4). The square tube (8) is provided on the top of the asphalt board.
5. The tooling for eliminating the removal of expansion joints in the integral track bed of the subway as described in claim 4, characterized in that: The number of square tubes (8) is two, and they are arranged side by side on the top of the asphalt board. The dimensions of the two square tubes (8) are both 1200*20*50mm.