Electricity testing grounding device

Abstract

The utility model discloses an electricity testing grounding device. The electricity testing and grounding device comprises a grounding switch box which comprises a grounding electricity testing assembly which is electrically connected with a contact net or a contact rail; the secondary control box and the grounding switch box are arranged in a split mode, and the secondary control box comprises a control assembly; and the control cable is connected between the secondary control box and the grounding switch box so as to electrically connect the control assembly with the grounding electricity testing assembly, and the control cable can transmit a detection signal sent from the grounding electricity testing assembly to the control assembly and transmit a control signal sent from the control assembly to the grounding electricity testing assembly. According to the electricity testing and grounding device provided by the embodiment of the utility model, the electricity testing and grounding device does not need a relatively large installation space in a rail transit line environment, so that the specific installation structure of the electricity testing and grounding device is more flexible, and the electricity testing and grounding device is convenient to cope with a complex tunnel environment; and particularly, the method has extremely high adaptive capacity for narrow old metro tunnel wall surfaces.

Description

Technical Field

[0001] The utility model relates to the field of electric power equipment, in particular to an electrical testing grounding device. Background Art

[0002] Urban rail transit typically uses a DC catenary or contact rail for power supply. When the catenary or contact rail, and surrounding electrical equipment, undergo maintenance after a power outage, grounding procedures are often necessary to ensure the safety of maintenance workers.

[0003] In existing technology, integrated test and grounding cabinets are installed in rail transit power supply systems. When the contact network or contact rail begins to lose power and requires maintenance, the backend equipment controls the grounding knife switch inside the integrated test and grounding cabinet to close and ground the circuit breaker, while also performing the test function. This replaces the traditional manual grounding method and improves work efficiency. However, in some rail transit line environments, the equipment installation space is limited, making the integrated test and grounding cabinet impractical. Utility Model Content

[0004] The utility model provides an electrical testing grounding device, which can be installed in an installation environment with a narrow space.

[0005] An embodiment of the present utility model provides an electrical detection grounding device, which includes: a grounding switch box, including a grounding electrical detection component, and the grounding electrical detection component is electrically connected to the contact network or contact rail; a secondary control box, which is separately arranged from the grounding switch box, and the secondary control box includes a control component; a control cable, which is connected between the secondary control box and the grounding switch box to electrically connect the control component with the grounding electrical detection component, and the control cable can transmit a detection signal sent from the grounding electrical detection component to the control component and transmit a control signal sent from the control component to the grounding electrical detection component.

[0006] According to the aforementioned embodiment of the present utility model, the grounding switch box includes a first heavy-load connector electrically connected to the grounding electrical detection component, the secondary control box includes a second heavy-load connector electrically connected to the control component, and the control cable is electrically connected to the grounding electrical detection component through the first heavy-load connector, and is electrically connected to the control component through the second heavy-load connector.

[0007] According to any of the aforementioned embodiments of the present invention, the grounding switch box also includes a first cabinet body and a first cabinet door, the grounding electrical detection component is installed in the first cabinet body, the first cabinet body has a first opening, the first cabinet door is movably installed in the first cabinet body and has a first open state and a first closed state, the first cabinet door seals the first opening in the first closed state; the first cabinet body is provided with a first flange structure arranged around the first opening, and the first cabinet door is provided with a first sealing strip on the side facing the first opening, and the first cabinet door is in the first closed state, the first sealing strip is in sealing contact with the first flange structure.

[0008] According to any of the aforementioned embodiments of the present invention, the grounding switch box further includes a manual lock, and the manual lock is installed on the first cabinet.

[0009] According to any of the aforementioned embodiments of the present utility model, the grounding switch box also includes a waterproof cover, which is movably arranged on the outer surface of the first cabinet door and has a second open state and a second closed state. The waterproof cover exposes the manual lock to the outer surface of the first cabinet door in the second open state and covers the manual lock in the second closed state.

[0010] According to any of the aforementioned embodiments of the present utility model, the grounding switch box also includes a waterproof cover base, which is fixedly connected to the first cabinet door, and the waterproof cover is slidably arranged on the waterproof cover base. The waterproof cover base has a first limiting portion, and the waterproof cover is provided with an adsorption component on the side facing the first limiting portion. In the second closed state, the waterproof cover is adsorbed and connected to the first limiting portion through the adsorption component.

[0011] According to any of the aforementioned embodiments of the present utility model, the waterproof cover base has a second limiting portion opposite to the first limiting portion, and the waterproof cover is provided with an abutting portion, and the abutting portion and the second limiting portion are used to limit the extreme activity position of the waterproof cover in the second open state, and when the waterproof cover moves to the extreme activity position of the second open state, the abutting portion abuts against the second limiting portion.

[0012] According to any of the aforementioned embodiments of the present invention, the grounding switch box further includes a video monitoring component and a monitoring bracket, the video monitoring component is arranged on the monitoring bracket, and the monitoring bracket enables the monitoring angle of the video monitoring component to be adjustable.

[0013] According to any of the aforementioned embodiments of the present invention, the grounding switch box also includes a first cabinet body, the monitoring bracket includes a first bearing member and a second bearing member, the first bearing member includes a first adjustment hole and is connected to the first cabinet body through the first adjustment hole, the second bearing member includes a second adjustment hole and is connected to the first bearing member through the second adjustment hole, and the video monitoring member is fixedly connected to the second bearing member, wherein the first adjustment hole is in the shape of a strip extending along the height direction of the first cabinet body, and the second adjustment hole is in the shape of an arc.

[0014] According to any of the foregoing embodiments of the present invention, the secondary control box also includes a second cabinet body, a second cabinet door and an inner door, the control component is installed in the second cabinet body, the second cabinet body has a second opening, the inner door is installed on the inner side of the second opening, the second cabinet door is movably installed in the second cabinet body and has a third open state and a third closed state, the second cabinet door exposes the inner door in the third open state, and the second cabinet door seals the second opening in the third closed state; the inner door is provided with an operating part and an indicator part electrically connected to the control component, the secondary control box is provided with a lighting part on the top side of the inner door, the inner door is provided with a sensing part, and the second cabinet door is provided with a trigger part cooperating with the sensing part on the side of the second cabinet door facing the inner door, when the second cabinet door is in the third closed state, the trigger part triggers the sensing part, so that the lighting part is turned off; when the second cabinet door is in the third open state, the trigger part leaves the sensing part, so that the lighting part is turned on.

[0015] According to an embodiment of the present invention, the electrical test grounding device includes a grounding switch box and a secondary control box, each of which is separately arranged. A control cable is connected between the secondary control box and the grounding switch box to electrically connect the control component to the grounded electrical test component. The length of the control cable can be flexibly set as needed. Therefore, when installing the electrical test grounding device, it is only necessary to obtain appropriate installation space for the grounding switch box and the secondary control box respectively to achieve installation of the electrical test grounding device. The installation space required for the grounding switch box and the secondary control box is relatively small. The electrical test grounding device no longer requires a large installation space in the rail transit line environment, making the specific installation structure of the electrical test grounding device more flexible, thereby facilitating the handling of complex tunnel environments, especially for the narrow walls of old subway tunnels. The grounding switch box and the secondary control box of the electrical test grounding device are separately arranged, so that the primary high-voltage components of the grounding switch box are separated from the secondary low-voltage components of the secondary control box, thereby improving the safety of the electrical test grounding device. During maintenance and repair, they can be checked and repaired separately without affecting each other, greatly improving the safety of on-site personnel during maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the main view of an installation layout of an embodiment of the electrical testing grounding device of the present utility model;

[0018] Figure 2 This is a schematic front view of an alternative installation layout of an embodiment of the electrical testing grounding device of the present utility model;

[0019] Figure 3 A schematic front view of another alternative installation layout of an embodiment of the electrical testing grounding device of the present utility model;

[0020] Figure 4 This is a schematic front view of another alternative installation layout of an embodiment of the electrical testing grounding device of the utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of a mounting bracket in an embodiment of the electrical testing and grounding device of the present invention;

[0022] Figure 6 This is a three-dimensional schematic diagram of a grounding switch box in a first closed state in an embodiment of an electrical testing grounding device of the present invention;

[0023] Figure 7 It is a three-dimensional schematic diagram of a grounding switch box in a first open state from one perspective in one embodiment of the electrical testing grounding device of the present invention;

[0024] Figure 8 It is a three-dimensional schematic diagram of the grounding switch box in the first open state from another perspective in one embodiment of the electrical testing grounding device of the present invention;

[0025] Figure 9 This is a three-dimensional schematic diagram of a waterproof cover and a waterproof cover base in one embodiment of the electrical testing grounding device of the present invention from one perspective;

[0026] Figure 10 This is a three-dimensional schematic diagram of the waterproof cover and the waterproof cover base from another perspective in one embodiment of the electrical testing grounding device of the present invention;

[0027] Figure 11 This is a three-dimensional schematic diagram of a video monitoring component and a monitoring bracket in one embodiment of the electrical testing grounding device of the present invention;

[0028] Figure 12This is a three-dimensional schematic diagram of the secondary control box in the third closed state in an embodiment of the electrical testing grounding device of the present invention;

[0029] Figure 13 This is a three-dimensional schematic diagram of the secondary control box in the third open state in an embodiment of the electrical testing grounding device of the present invention;

[0030] Figure 14 This is a three-dimensional schematic diagram of the secondary control box in one embodiment of the electrical testing and grounding device of the present invention with the inner door opened.

[0031] Description of reference numerals:

[0032] Grounding switch box 100; first heavy-duty connector 110; first cabinet body 120; first opening K1; first flange structure 121; first cabinet door 130; first window 131; grounding switch 141; fuse 142; voltage sensor 143; discharger 144; first electrical connection connector 150; manual lock 160; waterproof cover 170; adsorption member 171; abutment portion 172; first drain hole 173; waterproof cover base 180; first limiter 181; second limiter 182; second drain hole 183; video monitoring member 191; monitoring bracket 192; first bearing member 1921; first adjustment hole H1; second bearing member 1922; second adjustment hole H2; first sealing strip T1;

[0033] Secondary control box 200; second heavy-duty connector 210; second cabinet body 220; second flange structure 221; second cabinet door 230; second window 231; second opening K2; inner door 240; second electrical connector 250; control assembly 260; operating element 271; indicator 272; sensor 281; trigger 282; second sealing strip T2;

[0034] Control cable-300;

[0035] Mounting bracket-400;

[0036] Knife switch crank-500;

[0037] Mounting ear-600;

[0038] Handle-L1.

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0043] In the related art, an integrated power testing and grounding cabinet is installed in the power supply system of rail transit. When the contact network or contact rail starts to lose power and needs to be repaired, the background equipment controls the grounding knife switch in the integrated power testing and grounding cabinet on site to close the switch and perform the grounding operation. At the same time, the power testing function is performed, replacing the traditional manual grounding method and improving work efficiency. However, in some rail transit line environments, such as older subway tunnels, there is no automatic power testing and grounding equipment, and manual grounding is still required. In addition, the equipment installation space in these rail transit line environments is small, and there is not enough space next to the track to install the integrated power testing and grounding cabinet.

[0044] Figure 1 This is a schematic diagram of the front view of an installation layout for an embodiment of the electrical detection grounding device of the present invention. The electrical detection grounding device includes a grounding switch box 100, a secondary control box 200, and a control cable 300. The grounding switch box 100 includes a grounding and electrical detection assembly, which is electrically connected to the contact network or contact rail. The secondary control box 200 is separate from the grounding switch box 100 and includes a control assembly.

[0045] The control cable 300 is connected between the secondary control box 200 and the grounding switch box 100 to electrically connect the control component to the grounding detection component. The control cable 300 can transmit detection signals sent from the grounding detection component to the control component and transmit control signals sent from the control component to the grounding detection component.

[0046] The length of the control cable 300 can be set according to actual needs, so that the physical position relationship between the grounding switch box 100 and the secondary control box 200 is not restricted, and the grounding switch box 100 and the secondary control box 200 have a flexible arrangement and installation method. Figure 2 、 Figure 3 、 Figure 4 They are respectively the main views of several other alternative installation layouts of an embodiment of the electrical testing grounding device of the present utility model. Figure 1 In some cases, the grounding switch box 100 and the secondary control box 200 can be arranged in a horizontally spaced manner. Figure 2 In some cases, the grounding switch box 100 and the secondary control box 200 may be arranged at intervals in the longitudinal direction. Figure 3 and Figure 4 In some scenarios, the grounding switch box 100 and the secondary control box 200 can be arranged diagonally, with the secondary control box 200 positioned higher or lower than the grounding switch box 100. The above are just a few examples of how the grounding switch box 100 and the secondary control box 200 can be arranged. Depending on the space available on site, the grounding switch box 100 and the secondary control box 200 can be arranged in a variety of other configurations.

[0047] According to the embodiment of the present invention, the electrical test grounding device includes a grounding switch box 100 and a secondary control box 200 that are separately arranged. The control cable 300 is connected between the secondary control box 200 and the grounding switch box 100 to electrically connect the control component to the grounding electrical test component. The length of the control cable 300 can be flexibly set as needed. Therefore, when installing the electrical test grounding device, it is only necessary to obtain suitable installation space for the grounding switch box 100 and the secondary control box 200 respectively to achieve the installation of the electrical test grounding device. The installation space required for the grounding switch box 100 and the secondary control box 200 is relatively small. The electrical test grounding device no longer requires a large installation space in the rail transit line environment, making the specific installation structure of the electrical test grounding device more flexible, thereby facilitating the handling of complex tunnel environments, and having strong adaptability to the narrow walls of old subway tunnels. The grounding switch box 100 and the secondary control box 200 of the electrical detection grounding device are separately arranged, so that the primary high-voltage components of the grounding switch box 100 are separated from the secondary low-voltage components of the secondary control box 200, thereby improving the safety of the electrical detection grounding device. During maintenance and repair, they are checked and repaired separately without affecting each other, which greatly improves the safety of on-site personnel during maintenance and repair.

[0048] In some embodiments, the grounding switch box 100 and the secondary control box 200 are respectively mounted on the wall via mounting brackets 400. In some embodiments, the grounding switch box 100 and the secondary control box 200 are respectively provided with mounting ears, so as to be mounted on the wall via the mounting ears.

[0049] Figure 5 This is a three-dimensional schematic diagram of the mounting bracket in an embodiment of the electrical testing grounding device of the present invention. In this embodiment, the grounding switch box 100 is mounted on the wall via the mounting bracket 400, and the secondary control box 200 is mounted on the wall via the mounting ears 600.

[0050] The electrical testing grounding device of the above embodiment is installed on the wall through the installation bracket 400 or the installation ear 600 provided thereon. The installation process does not require construction on the ground, and the installation method is simple and the construction period is short, which can effectively reduce the impact on subway operations during the renovation process.

[0051] like Figure 5 In some embodiments, the electrical grounding device further includes a switch crank 500, which can be placed on the mounting bracket 400. The grounding switch box 100, the mounting bracket 400, and the switch crank 500 are separable, allowing them to be assembled on site and facilitated by the split structure for transportation and storage.

[0052] like Figures 1 to 4 In some embodiments, the grounding switch box 100 includes a first heavy-duty connector 110 electrically connected to the grounding and electrical detection assembly, and the secondary control box 200 includes a second heavy-duty connector 210 electrically connected to the control assembly. The control cable 300 is electrically connected to the grounding and electrical detection assembly via the first heavy-duty connector 110 and to the control assembly via the second heavy-duty connector 210.

[0053] In this embodiment, the two ends of the control cable 300 are connected to the first heavy-duty connector 110 and the second heavy-duty connector 210 respectively. The length of the control cable 300 can be set to be long enough so that the physical position relationship between the grounding switch box 100 and the secondary control box 200 is not restricted, so that the grounding switch box 100 and the secondary control box 200 have a flexible arrangement and installation method, and installation space can be easily found even in a narrow tunnel space.

[0054] Figure 6 This is a three-dimensional schematic diagram of the grounding switch box 100 in the first closed state in one embodiment of the electrical testing grounding device of the present invention. Figure 7 、 Figure 8The following are three-dimensional schematic diagrams of a grounding switch box 100 in a first open state, shown from different perspectives, in one embodiment of the electrical detection grounding device of the present invention. In some embodiments, the grounding switch box 100 further includes a first cabinet 120 and a first cabinet door 130. The grounding electrical detection assembly is mounted within the first cabinet 120. The first cabinet 120 has a first opening K1. The first cabinet door 130 is movably mounted within the first cabinet 120 and has a first open state and a first closed state. In the first closed state, the first cabinet door 130 seals the first opening K1.

[0055] In some embodiments, the grounding and electrical detection assembly includes a grounding switch 141, a fuse 142, a voltage sensor 143, and a discharger 144. The grounding switch 141, the fuse 142, the voltage sensor 143, and the discharger 144 are all installed in the first cabinet 120. The moving contact of the grounding switch 141 is grounded by being electrically connected to the return rail, and the static contact of the grounding switch 141 is electrically connected to the contact network or the contact rail. When the moving contact is in contact with the static contact, the grounding switch 141 is in a grounded state, thereby grounding the contact network or the contact rail. The voltage sensor 143 and the discharger 144 are electrically connected to the contact network or the contact rail through the fuse 142, respectively. The voltage sensor 143 is used to detect the voltage of the contact network or the contact rail, thereby realizing electrical detection. The discharger 144 is used to discharge the residual voltage of the contact network or the contact rail. The grounding switch 141 is controlled to open and close by a driving device, and the driving device is electrically connected to the control component of the secondary control box 200 to perform corresponding actions under the control of the control component.

[0056] In some embodiments, the grounding switch box 100 further includes a first electrical connection connector 150 , through which the grounding electrical detection assembly is electrically connected to an external device, such as a return rail, a contact network, or a contact rail.

[0057] In some embodiments, a handle L1 is provided on the side of the first cabinet 120 to facilitate the transportation of the grounding switch box 100 .

[0058] In some embodiments, a light-emitting element is provided on the top side of the first cabinet 120 so as to illuminate the interior of the first cabinet 120 .

[0059] In some embodiments, the first cabinet body 120 is provided with a first flange structure 121 arranged around the first opening K1, and the first cabinet door 130 is provided with a first sealing strip T1 on the side facing the first opening K1. When the first cabinet door 130 is in the first closed state, the first sealing strip T1 is in sealing contact with the first flange structure 121, thereby improving the sealing and waterproof performance of the grounding switch box 100.

[0060] In some embodiments, a light-transmissive first window 131 is provided on the first cabinet door 130 . When the first cabinet door 130 is in the first closed state, the first window 131 corresponds to the position of the grounding switch 141 of the grounding electrical detection assembly.

[0061] In some embodiments, the grounding switch box 100 further includes a manual lock 160. The manual lock 160 is mounted on the first cabinet body 120. The manual lock 160 is used to manually operate the grounding switch 141. In some embodiments, the grounding switch box 100 further includes a waterproof cover 170. The waterproof cover 170 is movably mounted on the outer surface of the first cabinet door 130 and has a second open state and a second closed state. In the second open state, the waterproof cover 170 exposes the manual lock 160 to the outer surface of the first cabinet door 130 and covers the manual lock 160 in the second closed state. The waterproof cover 170 can provide waterproof performance for the manual lock 160, making the grounding switch box 100 more adaptable to the dark and humid environment of the tunnel.

[0062] In some embodiments, the grounding switch box 100 further includes a waterproof cover base 180 , which is fixedly connected to the first cabinet door 130 , and the waterproof cover 170 is slidably disposed on the waterproof cover base 180 .

[0063] Figure 9 、 Figure 10 The following are three-dimensional schematic diagrams showing waterproof cover 170 and waterproof cover base 180 from different angles in one embodiment of the electrical test and grounding device of the present invention. Waterproof cover base 180 has a first stopper 181. A suction member 171 is provided on the side of waterproof cover 170 facing first stopper 181. In the second closed state, waterproof cover 170 is attached to first stopper 181 via suction member 171.

[0064] In this embodiment, waterproof cover base 180 is made of a ferrous material, and adsorbent 171 is a magnet. In the second closed state, waterproof cover 170 is attached to first stop 181 via adsorption of adsorbent 171, allowing waterproof cover 170 to remain in the second closed state, ensuring that vibrations during subway operation do not vibrate waterproof cover 170 open.

[0065] In some embodiments, the waterproof cover base 180 has a second limiting portion 182 opposite to the first limiting portion 181 , and the waterproof cover 170 has an abutting portion 172 .

[0066] The abutment portion 172 and the second limiting portion 182 are used to limit the extreme movable position of the waterproof cover 170 in the second open state. When the waterproof cover 170 moves to the extreme movable position of the second open state, the abutment portion 172 abuts against the second limiting portion 182 to prevent the waterproof cover 170 from falling off the waterproof cover base 180.

[0067] In some embodiments, the bottom side of the waterproof cover 170 is provided with a first water drop hole 173. Herein, the bottom side of the waterproof cover 170 is the side of the waterproof cover 170 facing the ground.

[0068] In this embodiment, a second drain hole 183 is provided on the bottom side of waterproof cover base 180. When waterproof cover 170 is in the second closed state, first drain hole 173 and second drain hole 183 overlap. Providing first drain hole 173 on the bottom side of waterproof cover 170 allows condensed water inside waterproof cover 170 to be drained, protecting manual lock 160.

[0069] In some embodiments, the grounding switch box 100 further includes a video monitoring component 191 and a monitoring bracket 192. The video monitoring component 191 is disposed on the monitoring bracket 192, and the monitoring bracket 192 allows the monitoring angle of the video monitoring component 191 to be adjustable.

[0070] Figure 11 The figure is a three-dimensional schematic diagram of a video monitoring component and a monitoring bracket in one embodiment of the electrical testing grounding device of the present invention. The grounding switch box 100 also includes a first cabinet 120. The monitoring bracket 192 includes a first support member 1921 and a second support member 1922. The first support member 1921 includes a first adjustment hole and is connected to the first cabinet 120 through the first adjustment hole H1. The second support member 1922 includes a second adjustment hole and is connected to the first support member 1921 through the second adjustment hole H2. The video monitoring component 191 is fixedly connected to the second support member 1922. The first adjustment hole H1 is in the shape of a strip extending along the height direction of the first cabinet 120, and the second adjustment hole H2 is in the shape of an arc.

[0071] The video monitoring component 191 is an image acquisition device used to monitor the status of the grounding electrical detection component. In some embodiments, the video monitoring component 191 is arranged toward the grounding switch 141. In this embodiment, the first adjustment hole H1 is in the shape of a strip extending along the height direction of the first cabinet 120, so that the first adjustment hole H1 can be used to adjust the video monitoring component 191 in the up and down directions. The second adjustment hole H2 is in the shape of an arc, so that the second adjustment hole H2 can be used to adjust the angle deflection of the video monitoring component 191. By adjusting the first adjustment hole H1 and the second adjustment hole H2, the video monitoring component 191 can have a better field of view under different installation positions.

[0072] Figure 12 This is a three-dimensional schematic diagram of the secondary control box in the third closed state in an embodiment of the electrical testing grounding device of the present invention. Figure 13 This is a three-dimensional schematic diagram of the secondary control box in the third open state in an embodiment of the electrical testing grounding device of the present invention. Figure 14 This is a three-dimensional schematic diagram of the secondary control box in one embodiment of the electrical testing and grounding device of the present invention with the inner door opened.

[0073] In some embodiments, the secondary control box 200 further includes a second cabinet 220, a second cabinet door 230, and an inner door 240. A control assembly 260 is mounted within the second cabinet 220. The second cabinet 220 has a second opening K2. The inner door 240 is mounted inwardly of the second opening K2. The second cabinet door 230 is movably mounted within the second cabinet 220 and has a third open state and a third closed state. In the third open state, the second cabinet door 230 exposes the inner door 240. In the third closed state, the second cabinet door 230 seals the second opening K2, thereby improving the sealing and waterproofing performance of the secondary control box 200.

[0074] In some embodiments, a handle L1 is provided on the side of the second cabinet 220 to facilitate the transportation of the secondary control box 200 .

[0075] In some embodiments, the second cabinet body 220 is provided with a second flange structure 221 arranged around the second opening K2, and the second cabinet door 230 is provided with a second sealing strip T2 on the side facing the second opening K2. When the second cabinet door 230 is in the third closed state, the second sealing strip T2 is in sealing contact with the second flange structure 221, thereby improving the sealing and waterproof performance of the secondary control box 200.

[0076] The control assembly 260 includes multiple control components. In some embodiments, the multiple control components included in the control assembly 260 are installed in the second cabinet 220 through guide rails or adapter plates. Therefore, the vibration generated during the operation of the subway will not cause the control components to loosen, thereby ensuring the normal operation of the electrical grounding device.

[0077] In some embodiments, the secondary control box 200 further includes a second electrical connection connector 250 , and the control component 260 is electrically connected to an external device, such as a background device, via the second electrical connection connector 250 .

[0078] In some embodiments, the inner door 240 is provided with an operating member 271 and an indicator 272 electrically connected to the control assembly 260. The secondary control box 200 is provided with a lighting element on the top side of the inner door 240. The inner door 240 is provided with a sensor 281, and the second cabinet door 230 is provided with a trigger 282 on the side facing the inner door 240, which cooperates with the sensor 281.

[0079] When the second cabinet door 230 is in the third closed state, the triggering member 282 triggers the sensing member 281, so that the lighting member is turned off;

[0080] When the second cabinet door 230 is in the third open state, the triggering member 282 leaves the sensing member 281 , so that the lighting member is turned on.

[0081] When the second cabinet door 230 is in the third open state, the lighting is turned on, so that on-site maintenance personnel can also perform on-site operations on the secondary control box 200 in a dark tunnel environment. When the second cabinet door 230 is in the third closed state, the lighting is turned off, thereby saving energy consumption.

[0082] In some embodiments, the sensing member 281 is a travel switch, and the triggering member 282 is a contact block, which contacts the travel switch to trigger the travel switch. In other embodiments, the sensing member 281 can be another sensing member 281, such as a magnetic sensing member 281 or an optical sensing member 281, and the triggering member 282 cooperates with the sensing member 281 accordingly.

[0083] The operating member 271 is, for example, an operating button, and the indicating member 272 is, for example, an indicator light.

[0084] In some embodiments, a light-transmissive second window 231 is provided on the second cabinet door 230 . When the second cabinet door 230 is in the third closed state, the second window 231 corresponds to the position of the operating member 271 and the indicator member 272 .

[0085] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An electrical grounding device, characterized in that: include: The grounding switch box includes a grounding electrical detection component, wherein the grounding electrical detection component is electrically connected to the contact network or the contact rail; A secondary control box is provided separately from the grounding switch box, and the secondary control box includes a control assembly; A control cable is connected between the secondary control box and the grounding switch box to electrically connect the control component and the grounding electrical detection component. The control cable can transmit detection signals sent from the grounding electrical detection component to the control component and transmit control signals sent from the control component to the grounding electrical detection component.

2. The electrical testing grounding device according to claim 1, characterized in that: The grounding switch box includes a first heavy-load connector electrically connected to the grounding electrical detection component, the secondary control box includes a second heavy-load connector electrically connected to the control component, the control cable is electrically connected to the grounding electrical detection component through the first heavy-load connector, and is electrically connected to the control component through the second heavy-load connector.

3. The electrical testing grounding device according to claim 1, characterized in that: The grounding switch box further includes a first cabinet and a first cabinet door. The grounding electrical detection assembly is installed in the first cabinet. The first cabinet has a first opening. The first cabinet door is movably installed in the first cabinet and has a first open state and a first closed state. The first cabinet door seals the first opening in the first closed state. The first cabinet body is provided with a first flange structure arranged around the first opening, and the first cabinet door is provided with a first sealing strip on the side facing the first opening. When the first cabinet door is in the first closed state, the first sealing strip is in sealing contact with the first flange structure.

4. The electrical testing grounding device according to claim 3, characterized in that: The grounding switch box further includes a manual lock, which is installed on the first cabinet.

5. The electrical testing grounding device according to claim 4, characterized in that: The grounding switch box also includes a waterproof cover, which is movably arranged on the outer surface of the first cabinet door and has a second open state and a second closed state. The waterproof cover exposes the manual lock to the outer surface of the first cabinet door in the second open state and covers the manual lock in the second closed state.

6. The electrical testing grounding device according to claim 5, characterized in that: The grounding switch box also includes a waterproof cover base, which is fixedly connected to the first cabinet door. The waterproof cover is slidably arranged on the waterproof cover base. The waterproof cover base has a first limiting portion. The waterproof cover is provided with an adsorption member on the side facing the first limiting portion. In the second closed state, the waterproof cover is adsorbed and connected to the first limiting portion through the adsorption member.

7. The electrical testing grounding device according to claim 6, characterized in that: The waterproof cover base has a second limiting portion opposite to the first limiting portion, and the waterproof cover is provided with an abutting portion. The abutting portion and the second limiting portion are used to limit the extreme movable position of the waterproof cover in the second open state. When the waterproof cover moves to the extreme movable position of the second open state, the abutting portion abuts against the second limiting portion.

8. The electrical testing grounding device according to claim 1, characterized in that: The grounding switch box further comprises a video monitoring component and a monitoring bracket. The video monitoring component is arranged on the monitoring bracket. The monitoring bracket enables the monitoring angle of the video monitoring component to be adjustable.

9. The electrical testing grounding device according to claim 8, characterized in that: The grounding switch box also includes a first cabinet body, the monitoring bracket includes a first bearing member and a second bearing member, the first bearing member includes a first adjustment hole and is connected to the first cabinet body through the first adjustment hole, the second bearing member includes a second adjustment hole and is connected to the first bearing member through the second adjustment hole, and the video monitoring member is fixedly connected to the second bearing member, wherein the first adjustment hole is in the shape of a strip extending along the height direction of the first cabinet body, and the second adjustment hole is in the shape of an arc.

10. The electrical testing grounding device according to claim 1, characterized in that: The secondary control box further includes a second cabinet, a second cabinet door, and an inner door. The control assembly is installed in the second cabinet. The second cabinet has a second opening. The inner door is installed inside the second opening. The second cabinet door is movably installed in the second cabinet and has a third open state and a third closed state. In the third open state, the second cabinet door exposes the inner door. In the third closed state, the second cabinet door seals the second opening. The inner door is provided with an operating member and an indicator electrically connected to the control assembly, the secondary control box is provided with a lighting member on the top side of the inner door, the inner door is provided with a sensing member, and the second cabinet door is provided with a trigger member cooperating with the sensing member on the side facing the inner door. When the second cabinet door is in the third closed state, the triggering member triggers the sensing member, so that the lighting member is turned off; When the second cabinet door is in the third open state, the triggering member leaves the sensing member, causing the lighting member to turn on.

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