Device for connection control of subway underground line track bed terminals

Abstract

The utility model discloses a device for connection control of subway underground line track bed terminals. The device comprises a pouring groove body. The left end and the right end of the interior of the pouring groove body are each provided with a connecting frame. A control side plate is arranged on the outer side of the pouring groove body, extension mechanisms are arranged at the left end and the right end of the control side plate, and each extension mechanism comprises an extension side plate; a bidirectional threaded rod is rotationally arranged at the center position of the outer side of the control side plate through a bearing, and the outer walls of the left side and the right side of the bidirectional threaded rod are both in threaded connection with guide sliding blocks. According to the device for connection control of the subway underground line track bed terminals, through the control side plate attached to the outer side of the pouring groove body, the extension side plate and the butt joint mechanism at the outer end of the extension side plate are driven to be adjusted according to the installation distance of the power connection terminals; and the butt joint expansion plate of the butt joint mechanism drives the terminal connecting plate to move to determine the mounting position of the power connection terminal, so that the accuracy and convenience of the power connection terminal are improved.

Description

Technical Field

[0001] This utility model relates to the field of track laying technology, specifically a device for terminal connection control of subway underground track laying. Background Technology

[0002] Subway tracks are a type of rail transit, belonging to the category of fixed-line rail transit. Subway tracks typically use power-powered tracks to provide electric power for subway trains. To ensure the overall electrical continuity of the track bed, two flat steel bars are welded to all longitudinal steel bars on both sides of each track bed slab, and additional stray currents are diverted and guided through electrical terminals.

[0003] The device disclosed in Publication No. CN209658576U is for controlling the terminal connection of track bed in subway underground lines. It effectively solves the problem that the height and spacing of the connection terminals at both ends of the track bed are difficult to control, resulting in an unsightly overall track bed after construction. Track beds with excessively large discrepancies require reconnection later, increasing construction costs. This device effectively improves economic efficiency and reduces maintenance costs, strengthens the connectivity of the connection terminals to ensure the electrical continuity of the entire track bed, and can be reused continuously, increasing work efficiency.

[0004] However, the above-mentioned control device for connecting terminals to the track bed still has the following problems in actual use: Although the terminals can be fixed at the bottom of the horizontal plate and the height of the terminals can be adjusted at will by rotating the bottom of the bolts, the power supply methods used in the existing subway tracks are different, which makes the installation spacing, height and track spacing of the terminals vary greatly. Therefore, the horizontal plate cannot be adjusted for terminals with different spacings, making it difficult to effectively adapt to different installation requirements, which in turn causes some inconvenience to the construction and installation of terminals.

[0005] Therefore, we propose a device for terminal connection control of subway underground track bed laying to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this utility model is to provide a device for terminal connection control of subway underground track laying bed. In order to solve the problem that the power supply methods used in existing subway tracks are different, resulting in large differences in the installation spacing, height and track spacing of the power connection terminals, the horizontal plate cannot be adjusted for the installation of terminals with different spacings, making it difficult to effectively adapt to different installation requirements, thus causing certain inconvenience to the construction and installation of terminals.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for terminal connection control of underground subway track bed, comprising a casting trough and a steel braided mesh fixedly installed at the center of the casting trough.

[0008] The casting trough is equipped with connecting frames at both the left and right ends, and the connecting frames have installation cavities inside. The connecting frames at both the left and right ends are fixedly installed on the outer ends of the steel braided mesh.

[0009] It also includes: a control side plate is provided on the outer side of the casting tank, and an extension mechanism is provided on both the left and right ends of the control side plate, and the extension mechanism includes the extension side plate;

[0010] The control side plate has a bidirectional threaded rod located at the center of the outer side via a bearing, and guide sliders are threaded to the outer walls of both sides of the bidirectional threaded rod.

[0011] Preferably, a track body is provided at the center of the upper part of the inside of the casting trough, and the track body is located in the middle of the top surface of the steel woven mesh. Locking limit buckles are fixed at equal distances on both the front and back sides of the top surface of the steel woven mesh, and the inner ends of the equally spaced locking limit buckles overlap the bottom end of the track body.

[0012] Preferably, the extension mechanism includes extension side plates that are slidably disposed on the inner left and right ends of the control side plate, and the outer inner ends of the symmetrically disposed extension side plates are fixedly connected to the guide sliders on the left and right sides of the bidirectional threaded rod, and the guide sliders and extension side plates are moved by rotating the bidirectional threaded rod.

[0013] Preferably, the extension mechanism includes movable guide wheels, which are rotatably mounted below the left and right ends of the symmetrically arranged extension side plates via bearings. The symmetrically arranged movable guide wheels facilitate the movement of the left and right extension side plates when adjusting the spacing.

[0014] Preferably, the docking mechanism includes a docking telescopic plate, and the front end of the docking telescopic plate is slidably disposed on the upper end of the guide slide plate. The front end of the docking telescopic plate is connected to the positioning base plate by a traction spring, and the traction spring causes the docking telescopic plate to be attached to the top of the casting tank.

[0015] Preferably, the docking mechanism includes a docking telescopic plate, and the front end of the docking telescopic plate is slidably disposed on the upper end of the guide slide plate. The front end of the docking telescopic plate is connected to the positioning base plate by a traction spring, and the traction spring causes the docking telescopic plate to be attached to the top of the casting tank.

[0016] Preferably, the docking mechanism includes a terminal connecting plate, which is connected to the rear end of the docking telescopic plate. The terminal connecting plate and the docking telescopic plate are distributed in a one-to-one correspondence, and the electrical terminals are placed in the mounting cavity inside the connecting frame through the terminal connecting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This device for controlling the connection of terminals on the track bed of subway underground lines, through a control side plate attached to the outside of the casting trough, drives the extension side plate and its outer end docking mechanism to adjust according to the spacing of the electrical terminals. The docking telescopic plate of the docking mechanism drives the terminal connecting plate to move to determine the installation position of the electrical terminals, thereby improving the accuracy and convenience of the electrical terminals. The specific details are as follows:

[0018] 1. The connecting frames on the left and right sides inside the casting tank are installed in the cavity so that the power terminals can be encapsulated inside the casting tank after the concrete is poured, so that additional stray current can be connected and diverted through the power terminals.

[0019] Furthermore, by rotating and fitting the bidirectional threaded rod on the control side plate on the outside of the casting tank, the guide slider and the extension side plate are moved. The symmetrically arranged moving guide wheels assist the extension side plate in moving to prevent misalignment, so as to drive the docking mechanism fixed at the outer end to be aligned with the installation cavity opened inside the connecting frame.

[0020] 2. The traction spring ensures that the connecting telescopic plate always fits against the top surface of the casting tank, preventing it from detaching during sliding. The length of the uppermost connecting telescopic plate can be manually adjusted to move the terminal connecting plate fixed at the rear end. This allows the installation position of the electrical terminals to be determined according to requirements, thereby improving the accuracy and convenience of the electrical terminals. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the connecting frame of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the control side plate and the extension side plate of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the extended side plate of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the terminal connection plate installation structure of this utility model.

[0027] In the diagram: 1. Casting trough; 2. Reinforcing steel mesh; 3. Connecting frame; 4. Mounting cavity; 5. Control side plate; 6. Extension side plate; 7. Bidirectional threaded rod; 8. Guide slider; 9. Track body; 10. Locking limit buckle; 11. Moving guide wheel; 12. Positioning base plate; 13. Guide slide plate; 14. Connecting telescopic plate; 15. Traction spring; 16. Terminal connecting plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 The present invention provides the following technical solution:

[0030] Example 1: To solve the problems existing in the use of the existing connection control device, this example provides the following technical solution: a device for terminal connection control of subway underground track bed, including a casting trough 1 and a steel braided mesh 2 fixedly installed at the center of the inside of the casting trough 1; a connecting frame 3 is provided at both the left and right ends of the inside of the casting trough 1, and an installation cavity 4 is opened inside the connecting frame 3, and the connecting frames 3 at both ends are fixedly installed at the outer ends of the steel braided mesh 2; a track body 9 is provided at the center of the upper part of the inside of the casting trough 1, and the track body 9 is located in the middle of the top surface of the steel braided mesh 2, and locking limit buckles 10 are fixedly provided at equal distances on both the front and rear sides of the top surface of the steel braided mesh 2, and the inner ends of the locking limit buckles 10 are overlapped with the bottom end of the track body 9;

[0031] A control side plate 5 is provided on the outer side of the casting tank 1, and an extension mechanism is provided on both the left and right ends of the control side plate 5, and the extension mechanism includes an extension side plate 6; wherein, a bidirectional threaded rod 7 is rotatably provided at the center position of the outer side of the control side plate 5 via a bearing, and guide sliders 8 are threadedly connected to the outer walls of both the left and right sides of the bidirectional threaded rod 7; the extension side plate 6 included in the extension mechanism is slidably provided on the left and right ends of the inner side of the control side plate 5, and the inner ends of the outer sides of the symmetrically arranged extension side plates 6 are fixedly connected to the guide sliders 8 on the left and right sides of the bidirectional threaded rod 7, and the guide sliders 8 and the extension side plate 6 are moved by rotating the bidirectional threaded rod 7; the extension mechanism includes a movable guide wheel 11, and the movable guide wheel 11 is rotatably provided below the left and right ends of the symmetrically arranged extension side plates 6 via a bearing, and the symmetrically arranged movable guide wheel 11 facilitates the movement of the left and right extension side plates 6 when adjusting the spacing;

[0032] like Figure 1 , Figures 3-4 As shown, the steel braided mesh 2 is installed through the pouring trough 1, and the track body 9 is installed on the top surface of the steel braided mesh 2 through locking limit buckles 10 set at equal distances on the front and rear sides. At the same time, the connecting frame 3 is installed at the outer end of the steel braided mesh 2 so that the electrical terminal is installed through the installation cavity 4 opened inside the connecting frame 3. This allows the pouring trough 1 to encapsulate the electrical terminal inside after subsequent concrete pouring, so that additional stray current can be diverted through the electrical terminal.

[0033] Furthermore, firstly, the control side plate 5 is attached to the side of each section of the casting trough 1. Then, when adjusting the spacing of the left and right extended side plates 6 according to the length of the casting trough 1, the bidirectional threaded rod 7 set outside the control side plate 5 is rotated to drive the guide slider 8 threaded to the outer wall of the left and right sides to move the extended side plate 6 fixedly connected to the inner end to slide. Meanwhile, the moving guide wheels 11 set at the left and right ends of the extended side plate 6 are rotated to contact the ground to assist the extended side plate 6 in moving and prevent misalignment, so as to drive the docking mechanism fixedly connected to the outer end to be aligned with the installation cavity 4 opened inside the connecting frame 3.

[0034] Example 2: In order to solve the problems existing in the use of the existing connection control device, this example adopts the following technical solution: the outer ends of the symmetrically arranged extension side plates 6 are provided with docking mechanisms. The docking mechanism includes a positioning base plate 12, and the inner end of the positioning base plate 12 is fixedly installed below the outer ends of the left and right extension side plates 6. Moreover, the front end of the symmetrically arranged positioning base plate 12 is fixedly connected to the bottom end of the guide slide plate 13.

[0035] The docking mechanism includes a docking telescopic plate 14, the front end of which is slidably disposed on the upper end of the guide slide plate 13. The front end of the docking telescopic plate 14 is connected to the positioning base plate 12 by a traction spring 15. The traction spring 15 also causes the docking telescopic plate 14 to be attached to the top of the casting tank 1. The docking mechanism includes a terminal connecting plate 16, which is connected to the rear end of the docking telescopic plate 14. The terminal connecting plate 16 and the docking telescopic plate 14 are distributed in a one-to-one correspondence. The terminal connecting plate 16 is used to place the electrical terminals in the mounting cavity 4 inside the connecting frame 3.

[0036] like Figures 5-6As shown, after the extension side plate 6 drives the docking mechanism at the outer end to calibrate with the connecting frame 3, the docking telescopic plate 14 included in the docking mechanism is elastically connected to the positioning base plate 12 through the traction spring 15, thereby ensuring that the docking telescopic plate 14 can always be slidably set on the top surface of the casting tank 1, preventing it from detaching during the sliding process. Then, when adjusting the distance between the installation of the electrical terminal and the track body 9, the length of the uppermost docking telescopic plate 14 is manually adjusted to drive the terminal connecting plate 16 fixedly connected at the rear end to move, so that the installation position of the electrical terminal can be determined by the terminal connecting plate 16 as needed, thereby improving the accuracy and convenience of the electrical terminal.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for terminal connection control of underground subway track bed, comprising a casting trough (1) and a steel braided mesh (2) fixedly installed at the center of the casting trough (1); The casting trough (1) has connecting frames (3) at both the left and right ends, and the connecting frames (3) have installation cavities (4) inside. The connecting frames (3) at both the left and right ends are fixedly installed on the outer ends of the steel braided mesh (2). Its features are, Also includes: The outer side of the casting tank (1) is provided with a control side plate (5), and both the left and right ends of the control side plate (5) are provided with extension mechanisms, and the extension mechanisms include extension side plates (6). Among them, a bidirectional threaded rod (7) is provided at the outer center position of the control side plate (5) through a bearing, and guide sliders (8) are threadedly connected to the outer walls of both sides of the bidirectional threaded rod (7).

2. The device for terminal connection control of subway underground track bed laying according to claim 1, characterized in that: The inner center of the casting trough (1) is provided with a track body (9), and the track body (9) is located in the middle of the top surface of the steel mesh (2). Locking limit buckles (10) are fixed at equal distances on both the front and back sides of the top surface of the steel mesh (2), and the inner ends of the locking limit buckles (10) are connected to the bottom end of the track body (9).

3. The device for terminal connection control of subway underground track bed laying according to claim 1, characterized in that: The extension mechanism includes an extension side plate (6) which is slidably disposed on the inner left and right ends of the control side plate (5). The outer inner end of the symmetrically disposed extension side plate (6) is fixedly connected to the guide sliders (8) on the left and right sides of the bidirectional threaded rod (7). The guide sliders (8) and the extension side plate (6) are moved by rotating the bidirectional threaded rod (7).

4. The device for terminal connection control of subway underground track bed laying according to claim 3, characterized in that: The extension mechanism includes a movable guide wheel (11), which is rotatably mounted on the lower left and right sides of the symmetrically arranged extension side plates (6) via bearings. The symmetrically arranged movable guide wheel (11) facilitates the movement of the left and right extension side plates (6) when adjusting the spacing.

5. The device for terminal connection control of subway underground track bed laying according to claim 1, characterized in that: The outer ends of the symmetrically arranged extended side plates (6) are all provided with docking mechanisms. The docking mechanisms include positioning base plates (12), and the inner ends of the positioning base plates (12) are fixedly installed below the outer ends of the left and right extended side plates (6). Moreover, the front end of the symmetrically arranged positioning base plates (12) is fixedly connected to the bottom end of the guide slide plate (13).

6. The device for terminal connection control of subway underground track bed laying according to claim 5, characterized in that: The docking mechanism includes a docking telescopic plate (14), and the front end of the docking telescopic plate (14) is slidably disposed on the upper end of the guide slide plate (13). The front end of the docking telescopic plate (14) and the positioning base plate (12) are connected to each other by a traction spring (15). The docking telescopic plate (14) is attached to the top of the casting tank (1) by the traction spring (15).

7. The device for terminal connection control of subway underground track bed laying according to claim 6, characterized in that: The docking mechanism includes a terminal connecting plate (16), which is connected to the rear end of the docking telescopic plate (14). The terminal connecting plate (16) and the docking telescopic plate (14) are distributed in a one-to-one correspondence. The electrical terminals are placed in the mounting cavity (4) inside the connecting frame (3) through the terminal connecting plate (16).

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