Ring main unit with sulfur hexafluoride monitoring function

Abstract

The utility model provides a ring main unit with a sulfur hexafluoride monitoring function, and belongs to the technical field of electrical engineering. According to the structure, a first groove is formed in the outer side of a fence, a protruding strip is arranged on the inner wall of a shell, the protruding strip and the first groove are mutually inserted, a hole is formed in the first groove, a second groove is formed in the shell, a spring piece is arranged in the second groove, a protruding point is arranged at the lower end of one side of the spring piece, and a shiatsu plate is arranged at the upper end of the other side of the spring piece. A sulfur hexafluoride sensor is installed in the shell, a transparent window is arranged on the surface of the shell, and a detection probe of the sensor is arranged on the inner wall of the cabinet body. According to the sulfur hexafluoride sensor, the body and the detection probe of the sulfur hexafluoride sensor are mounted in a split manner, the body is mounted in the external and detachable shell, and an outer protection structure is designed for the detection probe. Based on the structure, the problem that the sensor is damaged by external force is effectively avoided, the possibility that the detection probe is accidentally touched is greatly reduced, and the structure is more stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical engineering technical field, concretely is a kind of looped netowrk cabinet with sulfur hexafluoride monitoring function. BACKGROUND

[0002] Looped netowrk cabinet is a kind of switchgear for secondary distribution system, mainly used between distribution substation and terminal consumer, to ensure continuous power supply and isolate fault part from network. Looped netowrk cabinet is usually composed of circuit breaker, fuse and disconnecting switch, used to provide uninterrupted power supply and protect distribution network in case of failure.

[0003] Sulfur hexafluoride gas has excellent electrical insulation performance, under high voltage electric field, sulfur hexafluoride gas can effectively prevent current from passing through, thus ensuring insulation safety between electrical components inside looped netowrk cabinet. This strong insulation capability not only improves the operation efficiency of looped netowrk cabinet, but also greatly reduces the safety risk caused by electrical failure. However, leakage of sulfur hexafluoride gas can bring serious safety hazards, affecting the insulation performance of equipment and endangering the safety of surrounding personnel and environment, therefore, monitoring of sulfur hexafluoride gas has important safety significance. In prior art, monitoring of sulfur hexafluoride is realized by sensor, however, such sensor is installed in looped netowrk cabinet for a long time, and damage often occurs due to lack of protection structure. SUMMARY

[0004] The technical problem to be solved by the utility model is how to design more stable and reliable protection structure for sulfur hexafluoride monitor built-in looped netowrk cabinet.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A kind of looped netowrk cabinet with sulfur hexafluoride monitoring function, including cabinet, door body, ring, fence, shell, first recess, convex strip, hole, second recess, spring piece, convex point, transparent window, detection probe, screw hole, screw, support plate, protective shell, wherein, door body is equipped at the front end of cabinet, ring is equipped at the rear end of cabinet, fence is fixedly connected on the outside of ring, first recess is equipped on the outside of fence, convex strip is equipped on the inner wall of shell, first recess and convex strip are mutually inserted, hole is equipped on first recess, second recess is equipped on shell, spring piece is equipped in second recess, convex point is equipped at the lower end of one side of spring piece, finger pressure plate is equipped at the upper end of the other side of spring piece, sulfur hexafluoride sensor is installed in shell, transparent window is equipped on the surface of shell, detection probe of sulfur hexafluoride sensor is fixedly connected on the inner wall of cabinet, screw hole is equipped on the side of detection probe, screw is fastened and connected with screw hole penetrating support plate, protective shell is equipped on the front side of support plate.

[0007] As preferred, a flexible ring body is fixedly connected to the inner edge of the ring sleeve, the front and rear ends of the flexible ring body are turned outward, and the axial length of the flexible ring body is greater than the axial length of the ring sleeve.

[0008] As preferred, a plurality of groove bodies are arranged on the outer surface of the shell, the groove bodies extend along a straight line direction, and the groove bodies are parallel to each other.

[0009] As preferred, a grille is arranged on the side of the cabinet body, and a baffle is arranged on the upper edge of the grille.

[0010] As preferred, a bracket is fixedly connected to the inner wall of the cabinet body, and the detection probe is mounted on the bracket.

[0011] As preferred, the detection probe is connected to the body of the sulfur hexafluoride sensor through a wire, and the wire penetrates the ring sleeve.

[0012] As preferred, two screws are arranged on the left and right sides of the support plate.

[0013] As preferred, a handle is arranged on the outer end of the screw.

[0014] In the above technical solution, the cabinet body is the main structure of the ring net cabinet, the door body is used for opening or closing the ring net cabinet, the ring sleeve is used for penetrating the cable, so that the body of the sulfur hexafluoride sensor and the detection probe thereof are connected, the detection probe is retained in the cabinet body, the sensor body is mounted outside the cabinet body, and an external protection structure is additionally arranged for the detection probe, so that the sensor is not easily damaged due to external force factors. The fence is fixed on the cabinet body, the first groove on the fence and the convex strip of the shell are inserted and mounted, so that the mounting and dismounting between the shell and the cabinet body are realized, the body structure of the sulfur hexafluoride sensor is mounted in the shell. When the first groove is inserted and mounted with the convex strip, the spring sheet in the second groove presses the convex point into the hole in the first groove, so that the shell and the fence are locked. The transparent window on the shell facilitates observing the sensor reading from the outside. For the detection probe of the sulfur hexafluoride sensor, a screw hole is arranged on the side end, and a screw is screwed in, so that the support plate is pressed on the surface of the detection probe, and the protection shell plays an external protection role.

[0015] The utility model provides a ring net cabinet with sulfur hexafluoride monitoring function. The technical scheme separates the body of the sulfur hexafluoride sensor and the detection probe, installs the body in the external and detachable shell, and designs an external protection structure for the detection probe. Based on the above structure, the problem that the sensor is damaged by external force is effectively avoided, the possibility that the detection probe is accidentally touched is greatly reduced, and the structure is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the first perspective view of the utility model;

[0017] Figure 2yes Figure 1 A magnified view of a portion of position A;

[0018] Figure 3 This is the second perspective view of this utility model;

[0019] Figure 4 yes Figure 3 This is a magnified view of a portion of location B;

[0020] Figure 5 This is the third perspective view of this utility model;

[0021] Figure 6 yes Figure 5 A magnified view of position C;

[0022] In the picture:

[0023] Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0025] Example 1

[0026] A ring main unit with sulfur hexafluoride monitoring function, such as Figures 1-6 As shown, the device includes a cabinet body 1, a door body 2, a ring 3, a enclosure 4, a shell 5, a first groove 6, a protrusion 7, a hole 8, a second groove 9, a spring plate 10, a protrusion 11, a transparent window 15, a detection probe 16, screw holes 17, screws 18, a support plate 19, and a protective shell 20. The cabinet body 1 has a door at its front end and a ring 3 at its rear end. The enclosure 4 is fixedly connected to the outside of the ring 3. The enclosure 4 has a first groove 6 on its outside. The shell 5 has a protrusion 7 on its inner wall, which is inserted into the first groove 6. The first groove 6 has... The housing 5 has a hole 8 and a second groove 9. A spring plate 10 is provided in the second groove 9. A protrusion 11 is provided at the lower end of one side of the spring plate 10. A finger pressure plate is provided at the upper end of the other side of the spring plate 10. A sulfur hexafluoride sensor is installed in the housing 5. A transparent window 15 is provided on the surface of the housing 5. The detection probe 16 of the sulfur hexafluoride sensor is fixedly connected to the inner wall of the cabinet 1. A screw hole 17 is provided on the side of the detection probe 16. A screw 18 passes through the support plate 19 and is fastened to the screw hole 17. A protective shell 20 is provided on the front side of the support plate 19.

[0027] In the above technical scheme, the cabinet 1 is the main structure of the ring main unit, and the door body 2 is used for opening or closing the ring main unit; the ring 3 is used for penetrating the cable, so that the body of the sulfur hexafluoride sensor and the detection probe 16 thereof are connected, the detection probe 16 is retained in the cabinet 1, the sensor body is installed outside the cabinet 1, and the outer protection structure is additionally provided for the detection probe 16, so that the sensor is not easily damaged due to external force factors. The fence 4 is fixed on the cabinet 1, the first groove 6 on the fence 4 and the convex strip 7 of the shell 5 are inserted and assembled, so that the installation and disassembly between the shell 5 and the cabinet 1 are realized, and the body structure of the sulfur hexafluoride sensor is installed in the shell 1. When the first groove 6 and the convex strip 7 are inserted and assembled, the spring sheet 10 in the second groove 9 presses the convex point 11 into the hole 8 on the first groove 6, so that the shell 5 and the fence 4 are locked; the transparent window 15 on the shell 5 facilitates the observation of the sensor reading from the outside. For the detection probe 16 of the sulfur hexafluoride sensor, the screw hole 17 is arranged at the side end thereof, and the screw 18 is screwed, the supporting plate 19 is pressed on the surface of the detection probe 16, and the protection shell 20 plays an external protection role.

[0028] Example 2

[0029] A ring main unit with a sulfur hexafluoride monitoring function, comprising a cabinet 1, a door body 2, a ring 3, a fence 4, a shell 5, a transparent window 15, a detection probe 16, a screw hole 17, a screw 18, a supporting plate 19 and a protection shell 20. Figures 1-6As shown, including cabinet 1, door body 2, ring 3, fence 4, shell 5, first groove 6, convex strip 7, hole 8, second groove 9, spring piece 10, convex point 11, transparent window 15, detection probe 16, screw hole 17, screw 18, support plate 19, protective shell 20, wherein, the front end of the cabinet 1 is provided with door body, the rear end of the cabinet 1 is provided with ring 3, the outer side of the ring 3 is fixedly connected with the fence 4, the outer side of the fence 4 is provided with the first groove 6, the inner wall of the shell 5 is provided with convex strip 7, the convex strip 7 and the first groove 6 are mutually inserted, the first groove 6 is provided with hole 8, the shell 5 is provided with second groove 9, the spring piece 10 is arranged in the second groove 9, the convex point 11 is arranged on the lower end of one side of the spring piece 10, the finger pressure plate is arranged on the upper end of the other side of the spring piece 10, the sulfur hexafluoride sensor is installed in the shell 5, the transparent window 15 is arranged on the surface of the shell 5, the detection probe 16 of the sulfur hexafluoride sensor is fixedly connected on the inner wall of the cabinet 1, the screw hole 17 is arranged on the side of the detection probe 16, the screw 18 is fastened and connected with the screw hole 17 through the support plate 19, the protective shell 20 is arranged on the front side of the support plate 19. Wherein, the inner edge of the ring 3 is fixedly connected with the flexible ring body 13, the front and rear ends of the flexible ring body 13 are turned outward, the axial length of the flexible ring body 13 is greater than the axial length of the ring 3. A plurality of groove bodies 14 are arranged on the outer surface of the shell 5, the groove bodies 14 extend along the straight line direction, and the groove bodies 14 are parallel to each other. The grille 12 is arranged on the side of the cabinet 1, and the baffle is arranged on the upper edge of the grille 12. The bracket is fixedly connected to the inner wall of the cabinet 1, and the detection probe 16 is installed on the bracket. The detection probe 16 and the body of the sulfur hexafluoride sensor are connected through wires, and the wires penetrate the ring 3. Two screws 18 are arranged, and the two screws 18 are respectively arranged on the left and right sides of the support plate 19. Handles are arranged on the outer ends of the screws 18.

[0030] The embodiments of the present application are described in detail above, but the content described is only the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the application range of the present application shall be included in the protection range of the present application.

Claims

1. A ring main unit having a sulfur hexafluoride monitoring function, characterized by The utility model relates to a cabinet, which comprises a cabinet body (1), a door body (2), a ring sleeve (3), a fence (4), a shell (5), a first groove (6), a convex strip (7), a hole (8), a second groove (9), a spring sheet (10), a convex point (11), a transparent window (15), a detection probe (16), a screw hole (17), a screw (18), a support plate (19), a protective shell (20), wherein the front end of the cabinet body (1) is provided with the door body, the rear end of the cabinet body (1) is provided with the ring sleeve (3), the outer side of the ring sleeve (3) is fixedly connected with the fence (4), the outer side of the fence (4) is provided with the first groove (6), the inner wall of the shell (5) is provided with the convex strip (7), the convex strip (7) and the first groove (6) are mutually inserted, the first groove (6) is provided with the hole (8), the shell (5) is provided with the second groove (9), the second groove (9) is provided with the spring sheet (10), the lower end of one side of the spring sheet (10) is provided with the convex point (11), the upper end of the other side of the spring sheet (10) is provided with a finger pressing plate, the shell (5) is installed with a sulfur hexafluoride sensor, the surface of the shell (5) is provided with the transparent window (15), the detection probe (16) of the sulfur hexafluoride sensor is fixedly connected to the inner wall of the cabinet body (1), the side of the detection probe (16) is provided with the screw hole (17), the screw (18) penetrates the support plate (19) and is tightly connected with the screw hole (17), the front side of the support plate (19) is provided with the protective shell (20).

2. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The inner edge of the ring sleeve (3) is fixedly connected with a flexible ring body (13), the front and rear ends of the flexible ring body (13) are turned outward, and the axial length of the flexible ring body (13) is greater than the axial length of the ring sleeve (3).

3. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The outer surface of the shell (5) is provided with a plurality of groove bodies (14), the groove bodies (14) extend along the straight line direction, and the groove bodies (14) are parallel to each other.

4. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The side of the cabinet body (1) is provided with a grating (12), and the upper edge of the grating (12) is provided with a baffle.

5. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The inner wall of the cabinet body (1) is fixedly connected with a bracket, and the detection probe (16) is installed on the bracket.

6. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The detection probe (16) and the body of the sulfur hexafluoride sensor are connected through wires, and the wires penetrate the ring sleeve (3).

7. The ring main unit having a sulfur hexafluoride monitoring function according to claim 1, characterized by, The screw (18) is provided with two, and the two screws (18) are located on the left and right sides of the support plate (19).

8. The ring main unit with a sulfur hexafluoride monitoring function according to claim 1, characterized in that, The outer end of the screw (18) is provided with a handle.

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