A resistive leakage detector for rail transportation

Abstract

The utility model relates to the technical field of rail transit safety equipment, and discloses a resistive leakage detector for rail transit. The resistive leakage detector for rail transit comprises: a shell, one side of the shell is connected to a mounting shell, the inner wall of the mounting shell is provided with a chamber, clamping rods are installed on the upper and lower sides of the inner wall of the chamber, one end of the clamping rod is connected to a connecting rod, the inner wall of the connecting rod is connected to a square shielding cover, a leakage detector body is installed at the center of the inner wall of the chamber, and a connection interface is installed on the upper side of the leakage detector body. The new square shielding cover is correspondingly installed between the shell and the leakage detector body, which is convenient for shielding the capacitance generated between the leakage detection shell and the live wire, avoiding burns caused by the resistive leakage detector structure of rail transit, conveniently increasing the service life of the resistive leakage detector structure for rail transit, and improving the detection work use.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit safety equipment, in particular to a resistive leakage detector used for rail transit. Background Art

[0002] Resistive leakage refers to the leakage caused by the AC energy passing through a certain capacitance between the live wire and the electrical casing. Therefore, resistive leakage detectors are often used in rail transit to increase the safety of electrical appliances in rail transit equipment.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN219799714U discloses a leakage safety detection device. The utility model includes a leakage detector, a panel is provided on the front of the leakage detector, a mounting assembly is provided on the back of the leakage detector, the mounting assembly includes a mounting frame, an adjustment slot is provided through the mounting frame, a locking screw is provided in the adjustment slot, a mounting frame is provided on the back of the mounting frame, a locking hole is provided on the mounting frame, the locking screw matches the locking hole on the mounting frame, and fixing screws are provided on both sides of the mounting frame. The mounting frame is installed on the back of the leakage detector, the locking screw is screwed to loosen it from the mounting frame, the position of the mounting frame is adjusted along the direction of the adjustment slot, and the locking screw is screwed again to complete the tightening. The structure of this scheme is novel, and the position of the leakage detector can be adjusted, which is convenient for actual installation and use.

[0004] Although the existing leakage safety detection device has solved the problem that the installation position cannot be adjusted according to the actual spatial position, which affects the actual installation and the installation effect is poor, affecting the actual use, there is a certain capacitance between the leakage detection shell and the live wire, so that the AC power can pass through this capacitance to cause leakage, making the above-mentioned leakage safety detection device inconvenient to use for leakage processing, so this leakage voltage is not high, but it will cause structural burns, reduce the service life of the resistive leakage detector structure, and affect the normal operation of the resistive leakage detector in conjunction with rail transit electrical appliances. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a resistive leakage detector for rail transit, which has the advantages of increasing the service life of the resistive leakage detector and facilitating the normal operation of the resistive leakage detector in conjunction with rail transit electrical appliances, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: the resistive leakage detector for rail transit comprises: a shell, one side of the shell is connected to a mounting shell, the inner wall of the mounting shell is provided with a chamber, clamping rods are installed on the upper and lower sides of the inner wall of the chamber, one end of the clamping rod is connected to a connecting rod, the inner wall of the connecting rod is connected to a square shielding cover, a leakage detector body for rail transit electrical resistive leakage detection is installed at the center of the inner wall of the chamber, and a connection interface is installed on the upper side of the leakage detector body.

[0009] As a preferred technical solution of the utility model, a mounting seat is installed on one side of the shell, a display device is installed on the lower side of one side of the mounting seat, and a wire interface is installed on the upper side of one side of the mounting seat; the wire interface is used to connect and match the power cord with rail transit electrical equipment.

[0010] As a preferred technical solution of the utility model, a sealing sleeve is installed on the outer surface of one end of the plug-in interface, and the sealing sleeve is installed on the outer surface of one side of the mounting base; the sealing sleeve prevents side leakage.

[0011] As a preferred technical solution of the utility model, mounting holes are installed at the four corners of the other side of the shell, and heat dissipation holes are installed on both sides of the shell; the heat dissipation holes are used for the heat dissipation function of the leakage detector body.

[0012] As a preferred technical solution of the utility model, the four corners of the mounting shell are installed with mounting screws, one end of the mounting screws is connected to the inner wall of the mounting hole; the mounting holes are embedded in the four corners of the shell for coordinated use.

[0013] As a preferred technical solution of the utility model, a mounting block is installed above the mounting shell, a handle is installed at the center position above the mounting block, and the mounting block is movably connected to the upper outer surface of the outer shell by mounting screws to fix the mounting shell and the outer shell.

[0014] As the preferred technical solution of the utility model, the square shielding cover is movably connected to the edge of the inner wall of the chamber, a display device is installed on one side of the leakage detector body, the connection interface and the wire interface are connected to each other for matching use; the display device displays the detection value for use.

[0015] Compared with the prior art, the utility model provides a resistive leakage detector for rail transit, which has the following beneficial effects:

[0016] 1. The utility model achieves the purpose of installing the resistive leakage detection controller body inside for use by connecting and matching the outer shell and the connecting shell, and using the plug interface and the connecting interface to connect the power cord to the rail transit electrical equipment to achieve the purpose of leakage detection of the rail transit electrical equipment. A chamber is arranged in the connecting shell, and the upper and lower inner walls of the chamber are connected to the clamping rod, the clamping rod is used with the connecting rod, and the clamping rod and the connecting rod are used to cooperate with the square shielding cover for installation and use. The square shielding cover is correspondingly installed between the shell and the leakage detector body, which is convenient for shielding the capacitance generated between the leakage detection shell and the live wire, avoiding the situation that the resistive leakage detector structure of the rail transit causes burns, conveniently increasing the service life of the resistive leakage detector structure used for rail transit, and improving the detection work.

[0017] 2. The utility model is used with a connecting rod through a clamping rod. The connecting rod is made of shell bending material, which is convenient for bending to clamp and install the square shielding cover. It has a simple structure and is easy to operate. It is convenient for disassembly and installation of the square shielding cover, and is convenient for the coordinated use of the resistive leakage detector structure used for rail transit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the heat dissipation hole of the utility model;

[0020] Figure 3 This is a schematic diagram of the interior of the connection shell of the utility model;

[0021] Figure 4 It is a schematic diagram of a square shielding cover of the utility model.

[0022] Among them: 1. Shell; 11. Mounting base; 12. Display device; 13. Plug-in interface; 14. Sealing sleeve; 15. Mounting hole; 16. Heat dissipation hole; 2. Mounting shell; 21. Mounting screws; 22. Chamber; 23. Clamping rod; 24. Connecting rod; 25. Square shielding cover; 26. Leakage detector body; 27. Connecting interface; 3. Mounting block; 31. Handle. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Combined with Figure 1-Figure 4 In this embodiment, the resistive leakage detector for rail transit includes: a shell 1, a mounting shell 2 is connected to one side of the shell 1, a chamber 22 is provided on the inner wall of the mounting shell 2, clamping rods 23 are installed on the upper and lower sides of the inner wall of the chamber 22, one end of the clamping rod 23 is connected to a connecting rod 24, the inner wall of the connecting rod 24 is connected to a square shielding cover 25, a leakage detector body 26 is installed at the center of the inner wall of the chamber 22, and a connection interface 27 is installed on the upper side of the leakage detector body 26.

[0027] Specifically, the outer shell 1 and the mounting shell 2 are connected for use, and the outer shell 1 and the mounting shell 2 are used to install the leakage detector body 26 inside for use, which is convenient for use in cooperation with the leakage detection of rail transit electrical equipment. A chamber 22 is set in the mounting shell 2, and the center position of the chamber 22 is used to install the leakage detector body 26 structure. At the same time, a clamping rod 23 is installed at the edge of the chamber 22, and the clamping rod 23 is connected to the connecting rod 24. The connecting rod 24 is made of a bendable material, which is convenient for bending to install the square shielding cover 25, which is convenient for shielding the capacitance generated between the leakage detector shell structure and the leakage detector body 26, so as to shield the capacitance generated between the leakage detection shell 1 and the live wire, avoid burns caused by the resistive leakage detector structure of rail transit, conveniently increase the service life of the resistive leakage detector structure used for rail transit, and improve the detection work use.

[0028] A mounting seat 11 is installed on one side of the housing 1 , a display device 12 is installed at a lower position of one side of the mounting seat 11 , and a wiring interface 13 is installed at an upper position of one side of the mounting seat 11 .

[0029] A sealing sleeve 14 is installed on the outer surface of one end of the plug-in interface 13 , and the sealing sleeve 14 is installed on the outer surface of one side of the mounting seat 11 .

[0030] Four corners of the other side of the housing 1 are provided with mounting holes 15 , and two sides of the housing 1 are provided with heat dissipation holes 16 .

[0031] Specifically, a mounting base 11 is installed on one side of the outer shell 1, and the one side of the outer shell 1 is used to face the staff, so that the staff can observe the detection values ​​displayed on the display device 12, and it is convenient for the resistive leakage detector used in rail transit to work. At the same time, a wire interface 13 is installed on the outside of the mounting base 11, and the wire interface 13 is used to connect to the power cord. The power cord connects the resistive leakage detector used in rail transit to the electrical equipment of rail transit to achieve the leakage detection of the electrical equipment.

[0032] Four corners of the mounting shell 2 are each mounted with mounting screws 21 , and one end of the mounting screw 21 is connected to the inner wall of the mounting hole 15 .

[0033] A mounting block 3 is mounted above the mounting shell 2 , a handle 31 is mounted at the center of the mounting block 3 , and the mounting block 3 is movably connected to the upper outer surface of the housing 1 .

[0034] The square shielding cover 25 is movably connected to the inner wall of the chamber 22 at a side edge. A display device 12 is installed on one side of the leakage detector body 26. The connection interface 27 and the wiring interface 13 are connected to each other for matching use.

[0035] Specifically, the four corners of the mounting shell 2 are movably connected with mounting screws 21, and the mounting screws 21 penetrate the mounting shell 2 and are connected with the mounting holes 15. The mounting holes 15 are located on one side of the outer shell 1. The mounting screws 21 are used to fix the outer shell 1 and the mounting shell 2. At the same time, heat dissipation holes 16 are provided on both sides of the mounting shell 2 and the outer shell 1. The heat dissipation holes 16 present a vertical structure, which is convenient for using the heat dissipation function in the resistive leakage detector shell, convenient for increasing the working operation of the resistive leakage detector, and convenient for using the resistive leakage detector in rail transit.

[0036] Working principle: First, the mounting shell 2 and the outer shell 1 are connected by using the mounting screws 21, and a chamber 22 structure is set in the mounting shell 2. The leakage detector body 26 is installed at the center of the chamber 22. The upper part of the leakage detector body 26 and the connection interface 27 are connected and matched with each other. The connection interface 27 and the plug-in interface 13 are connected and matched with each other. The plug-in interface 13 is installed and connected by aligning the mounting seat 11 and the connection interface 27. The mounting seat 11 is installed on one side of the outer shell 1 for use. The display device 12 is installed at a position slightly below the mounting seat 11. The display device 12 is connected to the leakage detector body 26 using a cable. When it is necessary to detect leakage of rail transit electrical equipment, the plug-in interface 13 is connected to one end of the power cord. It is connected to the electrical equipment to achieve the leakage detection of rail transit electrical equipment. Subsequently, clamping rods 23 are installed on the upper and lower sides of the inner wall of the chamber 22. The clamping rod 23 carries a connecting rod 24, and the connecting rod 24 can be bent and used. The connecting rod 24 is bent to install the square shielding cover 25 on the outer surface of the leakage detector body 26 for cooperation. When the leakage detector body 26 and the live wire are connected, a certain capacitance will be generated. The square shielding cover 25 is used to shield and block the capacitance. At the same time, the square shielding cover 25 fills the gap between the shell and the leakage detector body 26, which is convenient for increasing the use between the leakage detector structure, is convenient for use in rail transit, and facilitates the work and use of the resistive leakage detector used in rail transit.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resistive leakage detector for rail transit, the resistive leakage detector for rail transit comprising a housing (1), characterized in that: One side of the shell (1) is connected to a mounting shell (2), the inner wall of the mounting shell (2) is provided with a chamber (22), the inner wall of the chamber (22) is provided with clamping rods (23) on the upper and lower sides, one end of the clamping rod (23) is connected to a connecting rod (24), the inner wall of the connecting rod (24) is connected to a square shielding cover (25), a leakage detector body (26) is installed at the center of the inner wall of the chamber (22), and a connection interface (27) is installed on the upper side of the leakage detector body (26).

2. The resistive leakage detector for rail transit according to claim 1, characterized in that: A mounting seat (11) is installed on one side of the housing (1), a display device (12) is installed at a position slightly below one side of the mounting seat (11), and a wiring interface (13) is installed at a position slightly above one side of the mounting seat (11).

3. The resistive leakage detector for rail transit according to claim 2, characterized in that: A sealing sleeve (14) is installed on the outer surface of one end of the plug-in interface (13), and the sealing sleeve (14) is installed on the outer surface of one side of the mounting seat (11).

4. The resistive leakage detector for rail transit according to claim 1, characterized in that: Four corners of the other side of the housing (1) are provided with mounting holes (15), and two sides of the housing (1) are provided with heat dissipation holes (16).

5. The resistive leakage detector for rail transit according to claim 1, characterized in that: The four corners of the mounting shell (2) are each mounted with mounting screws (21), and one end of the mounting screw (21) is connected to the inner wall of the mounting hole (15).

6. The resistive leakage detector for rail transit according to claim 1, characterized in that: A mounting block (3) is mounted above the mounting shell (2), a handle (31) is mounted at the center position above the mounting block (3), and the mounting block (3) is movably connected to the upper outer surface of the outer shell (1).

7. The resistive leakage detector for rail transit according to claim 1, characterized in that: The square shielding cover (25) is movably connected to the inner wall edge of the chamber (22), a display device (12) is installed on one side of the leakage detector body (26), and the connection interface (27) and the wiring interface (13) are connected to each other for matching use.

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