A substation neutral point grounding current monitoring device

Abstract

The utility model discloses a substation neutral point grounding current monitoring device, which relates to the field of monitoring devices and comprises a monitor housing, wherein an insert plate is fixedly connected to the outer wall of the monitor housing, a receiving slot is provided inside the insert plate, a spring block is movably connected inside the receiving slot, a fixing plate is installed on the outer wall of the insert plate, a slot is provided inside the fixing plate, and a clamping slot is provided on the inner side wall of the slot. By pulling the monitor housing upward, the clamping slot can squeeze the spring block, so that the spring block is received in the receiving slot and the limit on the insert plate is released, so that the insert plate can slide out along the slot, which has the effect of facilitating the disassembly and maintenance of the substation neutral point grounding current monitoring device. By turning over the protective shell, the pull plate is clamped between the two side plates, and the elastic protrusion is squeezed, so that the elastic protrusion is driven to reset and clamped in the limit hole for limiting, which has the effect of facilitating the protection of the touch screen against accidental touch.

Description

Technical Field

[0001] The utility model relates to the field of monitoring devices, in particular to a neutral point grounding current monitoring device for a transformer substation. Background Art

[0002] Neutral point grounding is the electrical connection method between the neutral point of a three-phase AC power system and the earth, which is called the grid neutral point grounding method. It is mostly used in substations and requires a monitoring device to monitor the neutral point grounding current. Current monitoring devices are often fixed on the wall with bolts, which makes it inconvenient to disassemble and repair them. Therefore, a substation neutral point grounding current monitoring device is needed.

[0003] The existing substation neutral point grounding current monitoring device is inconvenient to disassemble and repair the monitoring device during use, and it is inconvenient to protect the touch screen, resulting in accidental touches. At the same time, it is inconvenient to clamp the external wiring harness to prevent shaking. Therefore, a substation neutral point grounding current monitoring device is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a substation neutral point grounding current monitoring device to solve the problems that the existing monitoring device is inconvenient to disassemble and repair the monitoring device, inconvenient to protect the touch screen and inconvenient to clamp the external wiring harness to prevent shaking.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a substation neutral point grounding current monitoring device, comprising a monitor housing, an outer wall of the monitor housing is fixedly connected to a plug plate, a storage groove is provided inside the plug plate, a spring block is movably connected inside the storage groove, a fixing plate is installed on the outer wall of the plug plate, a slot is provided inside the fixing plate, and a card slot is provided on the inner side wall of the slot.

[0006] The outer wall of the monitor housing is fixedly connected to a touch screen, the outer wall of the monitor housing is movably connected to a protective shell, the outer wall of the protective shell is fixedly connected to a pull plate, the outer wall of the pull plate is fixedly connected to an elastic protrusion, the outer wall of the monitor housing is fixedly connected to a side plate, and a limiting hole is provided inside the side plate.

[0007] The top of the monitor housing is fixedly connected with a wiring head, the top of the monitor housing is fixedly connected with a cross plate, the top of the cross plate is fixedly connected with a support rod, the outer wall of the support rod is fixedly connected with a ring, and the inner wall of the ring is fixedly connected with a spring clamp.

[0008] Preferably, the plug plate is snap-connected with the fixing plate via a slot, and the shape of the plug plate is set to be convex.

[0009] Preferably, the spring block is engaged and connected with the fixing plate through a clamping groove, and the spring block forms a sliding structure with the inserting plate through the receiving groove.

[0010] Preferably, the spring blocks are symmetrically arranged with respect to the central axis of the plug plate, and the card slots are symmetrically arranged with respect to the central axis of the slot.

[0011] Preferably, the protective shell and the monitor housing form a rotating structure, and a transparent plate is inlaid on the inner wall of the protective shell.

[0012] Preferably, the elastic protrusions are symmetrically arranged with respect to the central axis of the pull plate, and the elastic protrusions are snap-connected with the side plates via limiting holes.

[0013] Preferably, the support rods are evenly distributed along the outer wall of the transverse plate, and the diameter of the collar is larger than the terminal head.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is provided with a monitor housing, a plug board, a storage slot, a spring block, a slot and a card slot. By pulling the monitor housing upward, the card slot can squeeze the spring block, so that the spring block is stored in the storage slot and the limit of the plug board is released, so that the plug board slides out along the slot, and the monitor housing can be disassembled, which facilitates the disassembly and maintenance of the neutral point grounding current monitoring device of the substation;

[0016] 2. The utility model is provided with a touch screen, a protective shell, a pull plate, an elastic protrusion, a side plate and a limiting hole. By turning over the protective shell, the pull plate is inserted between the two side plates, and the elastic protrusion is squeezed to deform the elastic protrusion. When the pull plate is completely inserted between the side plates, the elastic protrusion is driven to reset and insert into the limiting hole for limiting, thereby playing the role of protecting the touch screen from accidental touches;

[0017] 3. The utility model provides a wiring head, a ring and a spring clamp. By passing the external wiring harness through the ring and connecting it to the wiring head, the interface of the wiring harness will be clamped by the spring clamp, which facilitates the clamping of the external wiring harness and prevents the wiring harness from shaking and affecting the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the plug board of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the housing of the detector of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the sleeve ring of the utility model.

[0022] In the figure: 1. Monitor housing; 2. Plug-in board; 3. Storage slot; 4. Spring block; 5. Fixing plate; 6. Slot; 7. Card slot; 8. Touch screen; 9. Protective shell; 10. Pull plate; 11. Elastic protrusion; 12. Side plate; 13. Limiting hole; 14. Wiring head; 15. Horizontal plate; 16. Support rod; 17. Ring; 18. Spring clamp. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0024] The following describes an embodiment of the utility model based on its overall structure.

[0025] See also Figure 1-4 A substation neutral point grounding current monitoring device comprises a monitor housing 1, a plug board 2 is fixedly connected to the outer wall of the monitor housing 1, a receiving slot 3 is provided inside the plug board 2, a spring block 4 is movably connected inside the receiving slot 3, a fixing plate 5 is installed on the outer wall of the plug board 2, a slot 6 is provided inside the fixing plate 5, a card slot 7 is provided on the inner side wall of the slot 6, the plug board 2 is engaged with the fixing plate 5 through the slot 6, and the shape of the plug board 2 is set to be convex, the spring block 4 is engaged with the fixing plate 5 through the card slot 7, and the spring block 4 forms a sliding structure with the plug board 2 through the receiving slot 3, the spring block 4 is symmetrically arranged with the central axis of the plug board 2, and the card slot 7 is symmetrically arranged with the central axis of the slot 6, so that the monitoring device can be easily disassembled and repaired.

[0026] See also Figure 1-4 A neutral point grounding current monitoring device for a substation, wherein a touch screen 8 is fixedly connected to the outer wall of a monitor housing 1, a protective shell 9 is movably connected to the outer wall of the monitor housing 1, a pull plate 10 is fixedly connected to the outer wall of the protective shell 9, an elastic protrusion 11 is fixedly connected to the outer wall of the pull plate 10, a side plate 12 is fixedly connected to the outer wall of the monitor housing 1, a limiting hole 13 is provided inside the side plate 12, the protective shell 9 and the monitor housing 1 form a rotating structure, and a transparent plate is inlaid and installed on the inner wall of the protective shell 9, the elastic protrusion 11 is symmetrically arranged with the central axis of the pull plate 10, and the elastic protrusion 11 is engaged with the side plate 12 through the limiting hole 13, which can protect the touch screen 8 and prevent accidental touch.

[0027] See also Figure 1-4A neutral point grounding current monitoring device for a substation, a terminal head 14 is fixedly connected to the top of a monitor housing 1, a horizontal plate 15 is fixedly connected to the top of the monitor housing 1, a support rod 16 is fixedly connected to the top of the horizontal plate 15, a collar 17 is fixedly connected to the outer wall of the support rod 16, a spring clamp 18 is fixedly connected to the inner wall of the collar 17, the support rod 16 is evenly distributed along the outer wall of the horizontal plate 15, and the diameter of the collar 17 is larger than the terminal head 14, which can facilitate clamping of an external wiring harness to prevent the wiring harness from shaking and affecting the stability of the connection.

[0028] Working principle: When in use, by pulling the monitor housing 1 upward, the card slot 7 can squeeze the spring block 4, so that the spring block 4 is stored in the storage slot 3 and the limit of the plug board 2 is released, so that the plug board 2 slides out along the slot 6, and the monitor housing 1 can be disassembled, which facilitates the disassembly and maintenance of the neutral point grounding current monitoring device of the substation. By turning over the protective shell 9, the pull plate 10 is inserted between the two side plates 12, and the elastic protrusion 11 is squeezed to deform the elastic protrusion 11. When the pull plate 10 is completely inserted between the side plates 12, the elastic protrusion 11 is driven to reset and insert into the limit hole 13 for limit, which facilitates the protection of the touch screen 8 from accidental touch. By passing the external wiring harness through the ring 17 and connecting it to the wiring head 14, the interface of the wiring harness will be clamped by the spring clamp 18, which facilitates the clamping of the external wiring harness and prevents the wiring harness from shaking and affecting the stability of the connection. In this way, the use process of the device is completed. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0029] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A substation neutral point grounding current monitoring device, comprising a monitoring instrument housing (1), characterized in that: The outer wall of the monitor housing (1) is fixedly connected to a plug board (2), a receiving slot (3) is provided inside the plug board (2), a spring block (4) is movably connected inside the receiving slot (3), a fixing plate (5) is installed on the outer wall of the plug board (2), a slot (6) is provided inside the fixing plate (5), and a card slot (7) is provided on the inner side wall of the slot (6); The outer wall of the monitor housing (1) is fixedly connected to a touch screen (8), the outer wall of the monitor housing (1) is movably connected to a protective shell (9), the outer wall of the protective shell (9) is fixedly connected to a pull plate (10), the outer wall of the pull plate (10) is fixedly connected to an elastic protrusion (11), the outer wall of the monitor housing (1) is fixedly connected to a side plate (12), and a limiting hole (13) is provided inside the side plate (12); The top of the monitor housing (1) is fixedly connected to a wiring head (14), the top of the monitor housing (1) is fixedly connected to a transverse plate (15), the top of the transverse plate (15) is fixedly connected to a support rod (16), the outer wall of the support rod (16) is fixedly connected to a collar (17), and the inner wall of the collar (17) is fixedly connected to a spring clamp (18).

2. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The plug board (2) is snap-connected with the fixing plate (5) via a slot (6), and the shape of the plug board (2) is set to be convex.

3. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The spring block (4) is engaged and connected with the fixed plate (5) via a clamping groove (7), and the spring block (4) forms a sliding structure with the plug plate (2) via the receiving groove (3).

4. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The spring block (4) is symmetrically arranged with respect to the central axis of the plug board (2), and the clamping slot (7) is symmetrically arranged with respect to the central axis of the slot (6).

5. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The protective shell (9) and the monitor housing (1) form a rotating structure, and a transparent plate is inlaid on the inner wall of the protective shell (9).

6. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The elastic protrusion (11) is symmetrically arranged with respect to the central axis of the pull plate (10), and the elastic protrusion (11) is snap-connected with the side plate (12) via a limiting hole (13).

7. A substation neutral point grounding current monitoring device according to claim 1, characterized in that: The support rods (16) are evenly distributed along the outer wall of the transverse plate (15), and the diameter of the collar (17) is larger than the terminal head (14).

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