An inlet current tester

Abstract

This utility model relates to an inlet current tester, including a frame and a tester. The tester is mounted on the surface of the frame. Both ends of the frame are equipped with telescopic adjustment structures that are retractable and rotatable. Each telescopic adjustment structure includes a bracket, a connecting shaft, a mounting plate, a movable frame, a telescopic frame, fastening bolts, and a magnetic base. The bracket is bolted to one end of the frame. The connecting shaft passes through both the surface of the bracket and the surface of the movable frame. The movable frame is movably connected to the connecting shaft via a mounting plate mounted on the surface, with the connecting shaft passing through the mounting plate. The telescopic frame is movably connected inside the movable frame and fixed by fastening bolts located on the surface of the movable frame. The telescopic frame moves laterally along the movable frame, and a magnetic base is mounted on the outer end face of the telescopic frame. This utility model solves the problems of existing inlet current testers, such as cumbersome assembly and disassembly affecting user experience, limited applicability, and inability to adapt to testing on guide rails of different widths.

Description

Technical Field

[0001] This utility model relates to the technical field of track inlet current testing equipment, specifically an inlet current tester. Background Technology

[0002] The track inlet current tester is a precision measuring device specifically designed for the rail transit field. Its core purpose is to detect the current parameters in the track inlet area (such as when a train enters or leaves the station or passes through a turnout) to ensure the safe and stable operation of the rail transit system.

[0003] Currently, current transformers are used for testing. However, the testing instrument needs to be assembled during testing because the previous method of connecting the wires to the track with magnets was prone to affecting the accuracy of the test. Therefore, with the development of technology, current transformers are often used. However, support is still required. The current testing instrument using current transformers first requires the assembly of the support frame that contacts the guide rail. This assembly and disassembly process is time-consuming and cumbersome.

[0004] Therefore, in order to facilitate assembly and disassembly, make it easy to attach to the guide rail, simplify and expedite its operation, and make it applicable to rails of different widths, an inlet current tester is proposed to solve the technical problems in the prior art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an inlet current tester, which solves the problems of existing inlet current testers having cumbersome assembly and disassembly processes that affect the user experience, and limited applicability that makes them unable to adapt to testing between guide rails of different widths.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an inlet current tester, comprising a frame and a tester, the tester being mounted on the surface of the frame, both ends of the frame being equipped with telescopic adjustment structures that are retractable and rotatable, the telescopic adjustment structures comprising a insert, a connecting shaft, a mounting plate, a movable frame, a telescopic frame, fastening bolts, and a magnetic base; the insert is mounted on one end of the frame by bolts, the connecting shaft passing through the surface of both the insert and the movable frame, the movable frame being movably connected to the connecting shaft via a mounting plate mounted on the surface, the connecting shaft passing through the mounting plate, the telescopic frame being movably connected inside the movable frame and fixed by fastening bolts located on the surface of the movable frame, the telescopic frame moving in the lateral direction of the movable frame, and a magnetic base being mounted on the outer end face of the telescopic frame.

[0007] Furthermore, through the above technical solution, both the movable frame and the insert frame are equipped with protruding columns on their front sides, and are secured to the protruding columns by fixing plates, while the protruding columns at the other end of the frame are installed in the opposite position.

[0008] Furthermore, the outer end face of the insert is chamfered.

[0009] Compared with the prior art, the present invention provides an inlet current tester, which has the following advantages:

[0010] 1. This testing instrument, through a connecting shaft, insert bracket, mounting plate, and movable frame, allows the movable frame and insert bracket to rotate. After rotation, please refer to [the documentation / reference needed]. Figure 5 As can be seen, this design makes the instrument smaller in size when placed in the toolbox, thus facilitating its storage.

[0011] 2. This testing instrument, through its telescopic frame, can extend and retract within the movable frame, thus adapting to different track widths and improving the instrument's applicability.

[0012] 3. This tester, through its connecting shaft, insert, mounting plate, movable frame, and telescopic frame, eliminates the need for assembly. Simply extend it to bring the magnetic base into contact with the guide rail, and rotate the magnetic base switch to make it adhere to the guide rail (this magnetic base is existing technology and will not be described in detail here). This allows for convenient and rapid testing of the inlet current. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] Figure 2 This utility model Figure 1 AA sectional view;

[0015] Figure 3 This utility model Figure 1 Front view diagram;

[0016] Figure 4 This utility model Figure 1 A three-dimensional schematic diagram;

[0017] Figure 5 This utility model Figure 1 A schematic diagram of the shrunken structure.

[0018] In the diagram: 1. Frame; 2. Tester; 3. Insertion bracket; 4. Connecting shaft; 5. Mounting plate; 6. Movable frame; 7. Telescopic frame; 8. Fastening bolt; 9. Magnetic base; 10. Fixing plate; 11. Protruding column. Detailed Implementation

[0019] 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.

[0020] Example

[0021] Please see Figure 1-5 This utility model provides the following technical solution: an inlet current tester, including a frame 1 and a tester 2, the tester 2 being mounted on the surface of the frame 1, characterized in that: both ends of the frame 1 are equipped with telescopic adjustment structures that are retractable and rotatable, the telescopic adjustment structures including a plug 3, a connecting shaft 4, a mounting plate 5, a movable frame 6, a telescopic frame 7, fastening bolts 8, and a magnetic seat 9; the plug 3 is mounted on one end of the frame 1 by bolts, the connecting shaft 4 passes through the surface of the plug 3 and the surface of the movable frame 6, the movable frame 6 is movably connected to the connecting shaft 4 by the mounting plate 5 mounted on the surface, the connecting shaft 4 passes through the mounting plate 5, the telescopic frame 7 is movably connected inside the movable frame 6 and fixed by fastening bolts 8 located on the surface of the movable frame 6, the telescopic frame 7 moves along the lateral direction of the movable frame 6, and a magnetic seat 9 is mounted on the outer end face of the telescopic frame 7.

[0022] In this implementation plan, the specific working principle is as follows: When in use, the tester is taken out of the toolbox, and then the movable frame 6 is rotated to extend it, allowing the magnetic seat 9 to contact the guide rail surface. The switch of the magnetic seat 9 is then turned, causing it to magnetically attach to the guide rail. The other movable frame 6 is operated in the same way. This allows for quick connection to the guide rail, preventing inaccurate test data caused by placing the tester 2 on the ground. The position of the telescopic frame 7 within the movable frame 6 is adjusted according to the width of the rail, and then fixed with the fastening bolts 8. This improves the applicability of the tester. Furthermore, the movable frame 6 can be rotated and adjusted via the insert 3, connecting shaft 4, and mounting plate 5, facilitating storage. (See reference...) Figure 5 As can be seen, this reduces the size of the tester, making it easier to store. Furthermore, the aforementioned structure eliminates the need for assembly, thus shortening the testing time.

[0023] To improve the stability of the movable frame 6 and the insert frame 3, please refer to the following: Figure 3 and Figure 4As can be seen, both the movable frame 6 and the insert frame 3 have protruding columns 11 installed on their front sides, and are engaged with the protruding columns 11 by fixing plates 10. The protruding columns 11 at the other end of the frame 1 are installed in the opposite position. Simply attaching the fixing plates 10 to the protruding columns 11 can improve the stability between the movable frame 6 and the insert frame 3. Of course, this is not necessary in actual operation; it is just a way to improve stability.

[0024] To prevent the movable frame 6 from colliding with the end face of the insert frame 3 during rotation and adjustment, please refer to [the relevant documentation]. Figure 1 , Figure 3 , Figure 4 As can be seen, the outer end face of the insert 3 is chamfered.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An entry current tester comprising a frame (1) and a tester (2), the tester (2) being installed on the surface of the frame (1), characterized in that: Both ends of the frame (1) are equipped with telescopic adjustment structures that can be extended and rotated. The telescopic adjustment structures include a plug (3), a connecting shaft (4), a mounting plate (5), a movable frame (6), a telescopic frame (7), fastening bolts (8), and a magnetic seat (9). The plug (3) is installed at one end of the frame (1) by bolts. The connecting shaft (4) passes through the surface of the plug (3) and the surface of the movable frame (6). The movable frame (6) is movably connected to the connecting shaft (4) through the mounting plate (5) installed on the surface. The connecting shaft (4) passes through the mounting plate (5). The telescopic frame (7) is movably connected inside the movable frame (6) and is fixed by fastening bolts (8) located on the surface of the movable frame (6). The telescopic frame (7) moves in the lateral direction of the movable frame (6). A magnetic seat (9) is installed on the outer end face of the telescopic frame (7).

2. An entry current tester according to claim 1, characterized in that: Both the movable frame (6) and the insert frame (3) are equipped with protruding columns (11) on their front sides, and are secured to the protruding columns (11) by fixing plates (10). The protruding columns (11) at the other end of the frame (1) are installed in the opposite position.

3. An entry current tester according to claim 1, characterized in that: The outer end face of the insert (3) is chamfered.

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