Ballast bed expansion joint control tool

Abstract

The utility model discloses a ballast bed expansion joint control tool which comprises pressing plate assemblies and a clamping assembly, a plurality of pressing plate assemblies are arranged on the clamping assembly, the clamping assembly comprises a pair of parallel clamping plates, and the clamping assembly is used for clamping an expansion joint formwork. Each pressing plate assembly comprises a pair of pressing blocks, each pressing block comprises a pressing tongue and a sliding groove, the pressing tongues are parallel to the clamping plates, the pressing tongues and the clamping plates are jointly used for clamping the steel rail, the pressing blocks are slidably connected with the clamping plates through the sliding grooves, the pressing blocks of the same pressing plate assembly are slidably connected with the different clamping plates, and the pressing blocks of the same pressing plate assembly are connected in a clamped mode; the clamping assembly is fixed to the steel rail through the pressing plate assembly, so that the clamping assembly can stably and evenly clamp the expansion joint formwork, the pressing plate assembly is in sliding connection with the clamping plate, adjustment is convenient, the pressing plate assembly only needs to be moved along the clamping plate when the clamping plate is connected with the steel rail, and the pressing plate assembly moves the pressing block to clamp the expansion joint formwork. And the parallel clamping plates are connected between the pressing blocks in a clamping manner.

Description

Technical Field

[0001] The utility model relates to the technical field of the treatment of expansion joints of ballastless track beds, and particularly relates to a control tool for track bed expansion joints. Background Art

[0002] In the construction of railways and rail transit, the track bed, as an important foundation for supporting the track structure and dispersing train loads, its stability and durability are directly related to the running safety and riding comfort of trains. The expansion joint of the track bed, as a key structure of the track bed, is mainly used to cope with the stresses generated by environmental temperature changes and the self-shrinkage of concrete materials, and prevent cracks or damages in the track bed structure due to these external factors.

[0003] In order to achieve good expansion and waterproof performance, during the construction process, a closed-cell polyethylene foam plastic board is often filled inside the expansion joint. This material has good compression recovery and durability. As an expansion joint template, it can effectively absorb deformation. The reinforcement method of the track bed expansion joint template mostly adopts the combination of steel bars and iron wires for fixation. That is, after placing the polyethylene foam board and plywood at the predetermined position, use steel bars to clamp the foam board, and penetrate and fix it with iron wires, and finally tie it to the main structure steel bars.

[0004] However, there are a large number of gaps in the combination of steel bars and iron wires, making it difficult for the expansion joint template to effectively resist the huge pressure during concrete pouring. The high impact force during concrete pouring easily causes the linear distortion of the expansion joint, forming an "S" shape, affecting the aesthetics and function, and often requires cumbersome trimming work in the later stage, which not only increases the construction cost but also prolongs the construction period. Summary of the Invention

[0005] The purpose of the utility model is to provide a control tool for track bed expansion joints aiming at the problems existing in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A control tool for track bed expansion joints includes a pressing plate assembly and a clamping assembly. There are several pressing plate assemblies arranged on the clamping assembly. The clamping assembly includes a pair of parallel clamping plates, and the clamping assembly is used for clamping the expansion joint template; the pressing plate assembly includes a pair of pressing blocks. The pressing block includes a pressing tongue and a sliding groove. The pressing tongue is arranged parallel to the clamping plate, and the pressing tongue and the clamping plate are jointly used for clamping the rail. The pressing block is slidably connected to the clamping plate through the sliding groove. The pressing blocks of the same pressing plate assembly are respectively slidably connected to different clamping plates, and the pressing blocks of the same pressing plate assembly are mutually clamped.

[0008] The utility model connects the clamping component with the rail by using the pressing plate component, and fixes the clamping component by using the rail, so that a pair of clamping plates parallel to each other in the clamping component can stably and evenly clamp the expansion joint template, preventing it from displacement or deformation due to high impact force during concrete pouring, thereby keeping the linearity of the expansion joint straight, avoiding the problem of "S" - shaped distortion in the traditional method, and reducing the cumbersome trimming work in the later stage. This not only significantly shortens the construction period, but also greatly reduces the costs caused by rework or additional repair.

[0009] The pressing plate component is slidably connected with the clamping plate, which is convenient for adjustment. When connecting with the rail, only need to move the pressing plate component along the clamping plate. And the pressing plate component connects the mutually parallel clamping plates by moving the pressing blocks so that the pressing blocks are clamped with each other. Compared with connecting by using fasteners such as bolts, it is more convenient and fast in operation, which helps to shorten the construction period.

[0010] Preferably, the clamping plate includes a first angle steel, a second angle steel and a first connecting plate that are parallel to each other. The second angle steels are respectively arranged at both ends of the first angle steel, and the first angle steel and the second angle steel are connected by the first connecting plate.

[0011] Splitting the clamping plate into the first angle steel, the second angle steel and the first connecting plate is convenient for installing the clamping plate in a narrow installation space. At the same time, by selecting the first angle steels with different lengths, the clamping plate can be used in the construction of track beds with different rail gauges.

[0012] Preferably, each second angle steel is connected with a pair of pressing plate components. The pressing plate components connected with the same second angle steel are symmetrically arranged, and the symmetrically arranged pressing plate components are jointly used to clamp the rail.

[0013] The pressing plate components clamp the rail together from both sides of the rail, thereby connecting the rail with the clamping plate.

[0014] Preferably, the pressing block further includes a main body. The pressing tongue is arranged on the top of the main body, and the sliding groove is arranged in the lower half of the main body. Both the pressing tongue and the rail are located above the clamping plate, and the main body is slidably connected with the clamping plate through the sliding groove.

[0015] The sliding groove enables the pressing block to slide along the clamping plate conveniently, facilitating the adjustment of the position of the pressing block. At the same time, the pressing tongue is located on the top of the main body and can directly extend into the space between the rail head and the rail bottom of the rail, and directly press on the rail bottom.

[0016] Preferably, the pressing block further includes a clamping block. The clamping block is provided on one side of the main body and is located between the clamping plates. Adjacent pressing blocks are clamped to each other through the clamping block.

[0017] The design of the clamping block enables adjacent pressing blocks to be tightly connected to form an integral structure, enhancing the overall stability of the pressing plate assembly. At the same time, the clamping method is more convenient and faster than fasteners such as bolts, reducing the installation and disassembly time and improving the construction efficiency.

[0018] Preferably, the clamping block includes a clamping groove and a clamping post. The clamping groove is provided between adjacent clamping posts, and the clamping post is used to insert into the clamping groove.

[0019] The design of the clamping groove and the clamping post makes the connection between the clamping blocks more firm and reliable, not easily loosening. At the same time, through the dimensions of the clamping groove and the clamping post, the distance between the pressing blocks can be restricted, and thus the distance between the clamping plates can be restricted.

[0020] Preferably, a second connection plate is provided at one end of the second angle steel away from the first angle steel. The second connection plate is arranged perpendicular to the length direction of the second angle steel, and the second connection plate is connected to the drainage flat iron of the track bed through fasteners.

[0021] By connecting the clamping plate to the drainage flat iron and restricting the height of the drainage flat iron with the clamping plate, the height of the drainage flat iron of the track bed is unified.

[0022] Preferably, one side of the first connection plate is welded to the first angle steel, and the other side of the first connection plate is connected to the second angle steel through fasteners.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] (1) The present utility model uses a pressing plate assembly to connect the clamping assembly to the rail, and uses the rail to fix the clamping assembly, enabling a pair of parallel clamping plates of the clamping assembly to stably and uniformly clamp the expansion joint template, preventing it from displacing or deforming due to high impact force during concrete pouring, thereby maintaining the linearity of the expansion joint straight, avoiding the problem of "S" - shaped distortion in the traditional method, reducing the cumbersome trimming work in the later stage, which not only significantly shortens the construction period but also greatly reduces the cost caused by rework or additional repair.

[0025] (2) The pressing plate assembly in the present utility model is slidably connected to the clamping plate, which is convenient to adjust. When connecting to the rail, only need to move the pressing plate assembly along the clamping plate. And the pressing plate assembly connects the mutually parallel clamping plates by moving the pressing blocks and clamping them to each other. Compared with connecting with fasteners such as bolts, it is more convenient and faster in operation, helping to shorten the construction period. Brief Description of the Drawings

[0026] Figure 1 This is a usage diagram of the expansion joint control tooling in the embodiment of the present utility model;

[0027] Figure 2 This is a schematic structural diagram of the expansion joint control tooling in the embodiment of the present utility model;

[0028] Figure 3 This is a schematic structural diagram of the clamping plate in the embodiment of the present utility model;

[0029] Figure 4 This is a schematic structural diagram of the pressing plate assembly in the embodiment of the present utility model;

[0030] Figure 5 This is a schematic structural diagram of the pressing block in the embodiment of the present utility model;

[0031] In the figure: 1. Pressing plate assembly; 101. Pressing block; 102. Pressing tongue; 103. Chute; 104. Main body; 105. Clamping block; 106. Clamping groove; 107. Clamping column; 2. Clamping assembly; 201. Clamping plate; 202. First angle steel; 203. Second angle steel; 204. First connecting plate; 205. Second connecting plate; 3. Rail; 301. Rail head; 302. Rail bottom; 4. Expansion joint template. Detailed Description of the Preferred Embodiment

[0032] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0034] As Figures 1 - 5 shown, the specific solution of the embodiment is as follows: A ballast expansion joint control tooling is used to fix the expansion joint template 4 on the rail 3 before pouring the track ballast, so as to prevent the expansion joint template 4 from shifting or being severely deformed due to the impact of concrete during the pouring process, thereby maintaining the linearity of the expansion joint straight.

[0035] A track bed expansion joint control tooling, comprising a pressing plate assembly 1 and a clamping assembly 2. There are two pairs of pressing plate assemblies 1 on the clamping assembly 2, and the two pairs of pressing plate assemblies 1 respectively correspond to two rails 3.

[0036] The clamping assembly 2 includes a pair of parallel clamping plates 201. The clamping assembly 2 is used to clamp the expansion joint template 4. When clamping, the expansion joint template 4 is located between the clamping plates 201, and the length of the clamping plates 201 is not shorter than the designed length of the track bed expansion joint. The two ends of the expansion joint template 4 extend out from the two ends of the clamping assembly 2, and are used to completely separate the track bed structure during pouring.

[0037] The clamping plate 201 includes a first angle steel 202, a second angle steel 203 and a first connecting plate 204 that are parallel to each other. The two ends of the first angle steel 202 are respectively provided with a second angle steel 203. One side of the first connecting plate 204 is welded to the first angle steel 202, and the other side of the first connecting plate 204 is connected to the second angle steel 203 by at least two bolts, ensuring that the first angle steel 202 and the second angle steel 203 will not rotate relative to each other after connection.

[0038] The second angle steel 203 is provided with a second connecting plate 205 at the end far from the first angle steel 202. The second connecting plate 205 is arranged perpendicular to the length direction of the second angle steel 203. The second connecting plate 205 is provided with connection holes for setting bolts, and the second connecting plate 205 is connected to the drainage flat iron of the track bed by bolts.

[0039] The two rails 3 are respectively located on the second angle steels 203 at both ends of the first angle steel 202. The pressing plate assembly 1 is only connected to the second angle steel 203, and each second angle steel 203 is connected to a pair of pressing plate assemblies 1. The pressing plate assemblies 1 connected to the same second angle steel 203 are symmetrically arranged, and the symmetrically arranged pressing plate assemblies 1 are jointly used to clamp the rail 3.

[0040] The pressing plate assembly 1 includes a pair of pressing blocks 101. The pressing blocks 101 of the same pressing plate assembly 1 are mutually clamped. The pressing blocks 101 of the same pressing plate assembly 1 are respectively slidably connected to different clamping plates 201, and the pressing blocks 101 of the same pressing plate assembly 1 are simultaneously located on the same side of any rail 3.

[0041] The pressing block 101 includes a pressing tongue 102, a sliding groove 103, a main body 104 and a clamping block 105. The pressing tongue 102, the sliding groove 103 and the clamping block 105 are all arranged on the main body 104. Among them, the pressing tongue 102 is arranged on the top of the main body 104, the sliding groove 103 is arranged on the lower half of the main body 104, the pressing tongue 102 is located above the sliding groove 103, and the clamping block 105 is arranged on one side of the main body 104, and the pressing tongue 102, the sliding groove 103 and the main body 104 are located on the same side of the clamping block 105.

[0042] The main body 104 of the pressing block 101 is slidably connected to the second angle steel 203 through the sliding groove 103. When the pressing block 101 is located on the second angle steel 203, the pressing tongue 102 is arranged parallel to the second angle steel 203. Both the pressing tongue 102 and the rail 3 are located above the second angle steel 203. The pressing tongue 102 can extend into the space between the rail head 301 and the rail bottom 302 of the rail 3 and press on the rail bottom 302.

[0043] When the pressing blocks 101 of the same pressing plate assembly 1 are clamped, the clamping blocks 105 of the two pressing blocks 101 are both located between the clamping plates 201. The clamping block 105 includes a clamping groove 106 and a clamping column 107. A clamping groove 106 is provided between adjacent clamping columns 107. The clamping column 107 is used to insert into the clamping groove 106. The clamping blocks 105 of the pressing blocks 101 of the same pressing plate assembly 1 are symmetrically arranged, so that the clamping column 107 of one pressing block 101 can be inserted into the clamping groove 106 of the other pressing block 101.

[0044] In the use of this embodiment, the pressing block 101 is inserted into the clamping plate 201. By pushing the pressing block 101 to slide along the clamping plate 201, the pressing blocks 101 of the same pressing plate assembly 1 are clamped together, and then the parallel clamping plates 201 are connected to each other. The expansion joint template 4 is clamped between the clamping plates 201. Subsequently, each pressing plate assembly 1 is pushed to make the pressing plate assembly 1 press on the rail bottom 302 of the rail 3, and then the clamping assembly 2 is connected to the rail 3. Finally, the second angle steel 203 and the drainage flat iron are connected by bolts to complete the fixation of the expansion joint template 4.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trackbed expansion joint control tool, characterized in that: It includes a pressure plate assembly and a clamping assembly, and several pressure plate assemblies are provided on the clamping assembly. The clamping assembly includes a pair of clamping plates parallel to each other, and the clamping assembly is used to clamp the expansion joint template; the pressure plate assembly includes a pair of pressure blocks, and the pressure blocks include a pressure tongue and a slide groove. The pressure tongue is arranged parallel to the clamping plate, and the pressure tongue and the clamping plate are used together to clamp the rail. The pressure block is slidably connected to the clamping plate through the slide groove. The pressure blocks of the same pressure plate assembly are respectively slidably connected to different clamping plates, and the pressure blocks of the same pressure plate assembly are clamped to each other.

2. The track bed expansion joint control tool according to claim 1, characterized in that: The clamping plate includes a first angle steel, a second angle steel and a first connecting plate which are parallel to each other. The second angle steel is provided at both ends of the first angle steel, and the first angle steel and the second angle steel are connected by the first connecting plate.

3. The track bed expansion joint control tool according to claim 2, characterized in that: Each of the second angle steels is connected to a pair of the pressure plate assemblies. The pressure plate assemblies connected to the same second angle steel are arranged symmetrically, and the symmetrically arranged pressure plate assemblies are used together to clamp the rails.

4. The track bed expansion joint control tool according to claim 1, characterized in that: The pressing block also includes a main body, the pressing tongue is arranged on the top of the main body, the sliding groove is arranged on the lower half of the main body, the pressing tongue and the rail are both located above the clamping plate, and the main body is slidably connected to the clamping plate through the sliding groove.

5. The track bed expansion joint control tool according to claim 1, characterized in that: The pressing block further comprises a clamping block, which is arranged on one side of the main body and located between the clamping plates. Adjacent pressing blocks are clamped to each other via the clamping blocks.

6. The track bed expansion joint control tool according to claim 5, characterized in that: The clamping block includes a clamping slot and a clamping column. The clamping slot is provided between adjacent clamping columns, and the clamping column is used to be inserted into the clamping slot.

7. The track bed expansion joint control tool according to claim 2, characterized in that: The second angle steel is provided with a second connecting plate at one end away from the first angle steel. The second connecting plate is arranged perpendicular to the length direction of the second angle steel. The second connecting plate is connected to the drainage flat iron of the track bed through fasteners.

8. The track bed expansion joint control tool according to claim 2, characterized in that: One side of the first connecting plate is welded to the first angle steel, and the other side of the first connecting plate is connected to the second angle steel via a fastener.

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