Secondary circuit multipoint grounding on-line monitoring device

Abstract

The utility model relates to the technical field of secondary circuit multi-point grounding on-line monitoring, and discloses a secondary circuit multi-point grounding on-line monitoring device, which comprises a monitoring machine body, a first mounting plate and a second mounting plate are symmetrically and fixedly mounted on the side part of the monitoring machine body, and a first monitoring wheel is rotatably connected to the bottom of the first mounting plate. The bottom of the second mounting plate is rotatably connected with a second monitoring wheel, a plurality of monitoring blocks are uniformly mounted on the side parts of the first monitoring wheel and the second monitoring wheel, the end part of a rotating shaft of the first monitoring wheel penetrates through the upper surface of the first mounting plate and is fixedly provided with a first gear, and the upper surface of the first mounting plate is rotatably connected with a first belt pulley; a second gear is fixedly installed on the upper surface of the first belt wheel, the first gear is meshed with the second gear, and the monitoring blocks on the first monitoring wheel and the monitoring blocks on the second monitoring wheel are arranged in a staggered and complementary mode. According to the utility model, the two monitoring wheels which are arranged in a linkage manner are used for monitoring the whole section of the lead.

Description

Technical Field

[0001] The utility model relates to the technical field of online monitoring of multi-point grounding of a secondary circuit, in particular to an online monitoring device for multi-point grounding of a secondary circuit. Background Art

[0002] In the power system, the public circuit plays a very important role in ensuring the safe operation of the system. Under normal system operation, in order to ensure the safety of personnel and equipment, the "Safety Regulations for Power Operation Sites" stipulates that an electrical connection of the transformer public circuit must have a reliable grounding point. At the same time, in order to ensure the correct operation of relay protection and automatic devices, the circuit is required to be grounded at one point. However, the substation public circuit connection equipment is numerous and extends over a wide range. Often due to human wiring errors or some inevitable natural laws, such as insulation aging, multiple grounding points appear in a public circuit of an electrical connection. Moreover, most of the system's public circuits are outdoors, and the probability of insulation damage is high. Multiple grounding points lead to incorrect protection action, causing large-scale power outages to occur repeatedly in the system. The secondary circuit multi-point grounding fault finder is equipped with a high-precision collector. By monitoring the N line current and the public circuit and other circuits, it focuses on solving difficult faults such as two-point grounding and multi-point grounding in the public circuit of the power system.

[0003] Prior art such as the patent with publication number CN215180773U discloses a secondary circuit multi-point grounding online monitoring device, including a monitoring device body, a handle fixedly installed horizontally on the upper end of the monitoring device body, two sets of fixed plates fixedly installed in parallel at the front end of the monitoring device body, a freely rotatable conductor rotating shaft vertically and movably connected in the middle of the two sets of fixed plates, the conductor rotating shaft is a cylindrical metal rod, a monitoring rotating wheel is fixedly installed on the outer circle of the conductor rotating shaft and the monitoring rotating wheel is located in the middle of the two sets of fixed plates. In the utility model, by setting a monitoring line fixing plate, the monitoring line fixing plate can wrap the conductor, and during the rotation of the monitoring rotating wheel, multiple sets of monitoring contact heads can contact the outer wall surface of the conductor in turn for monitoring, and the effect of multi-point grounding monitoring can be achieved by moving the entire device along the direction of the conductor, thereby improving the efficiency and accuracy of the use of the entire device.

[0004] The above prior art has obvious beneficial effects, but still has shortcomings:

[0005] In the above-mentioned prior art, during the rotation of the monitoring rotating wheel, multiple groups of monitoring contact heads can contact the outer wall surface of the conductor in turn for monitoring, thereby monitoring the grounding of the conductor. However, during the monitoring process, there are gaps between the monitoring contact heads, and the conductors in the gaps cannot be monitored, which may result in missed detections and inaccurate monitoring results. For this reason, a secondary circuit multi-point grounding online monitoring device is proposed. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an online monitoring device for multi-point grounding of a secondary circuit. By arranging a synchronization component, two monitoring wheels that are offset and complementary are allowed to rotate synchronously in opposite directions, thereby achieving all-round monitoring of the conductors without any monitoring gaps.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online monitoring device for multi-point grounding of a secondary circuit, comprising a monitoring body, a first mounting plate and a second mounting plate are symmetrically fixedly installed on the side of the monitoring body, a first monitoring wheel is rotatably connected to the bottom of the first mounting plate, a second monitoring wheel is rotatably connected to the bottom of the second mounting plate, a number of monitoring blocks are evenly installed on the sides of the first monitoring wheel and the second monitoring wheel, an end of the rotating shaft of the first monitoring wheel passes through the upper surface of the first mounting plate and a first gear is fixedly installed, a first pulley is rotatably connected to the upper surface of the first mounting plate, a second gear is fixedly installed on the upper surface of the first pulley, the first gear is meshed with the second gear, the monitoring block on the first monitoring wheel and the monitoring block on the second monitoring wheel are staggered and complementary, a synchronization component is provided on the upper surface of the second mounting plate, and a clamping component is provided between the first mounting plate and the second mounting plate.

[0008] Preferably, the clamping assembly includes a third mounting plate, a first transverse plate, a second transverse plate, a first sliding bar, a second sliding bar, a first clamp and a second clamp, the monitoring body is located on one side of the first mounting plate and is fixedly aligned with the third mounting plate, the first transverse plate is fixedly installed between the first mounting plate and the second mounting plate, the second transverse plate is fixedly installed on the side of the third mounting plate, the first sliding bar is slidably connected to the upper surface of the first transverse plate, and the second sliding bar is slidably connected to the lower surface of the second transverse plate, the end of the first sliding bar passes through the first transverse plate and is fixedly installed with the first clamp, the top of the second sliding bar passes through the second transverse plate and is fixedly installed with the second clamp, and the first clamp is arranged opposite to the second clamp.

[0009] Preferably, the synchronization component comprises a second pulley and a belt, the second monitoring wheel rotation shaft passes through the second mounting plate, a second pulley is fixedly mounted on the upper surface thereof, and a belt is sleeved between the first pulley and the second pulley.

[0010] Preferably, the first sliding rod wall is slidably sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the upper surface of the first horizontal plate and the top end of the first sliding rod; the second sliding rod wall is slidably sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the lower surface of the second horizontal plate and the bottom end of the second sliding rod.

[0011] Preferably, a first connecting wire is rotatably connected to the upper surface of the first gear, and a second connecting wire is rotatably connected to the upper surface of the second pulley. The ends of the first connecting wire and the second connecting wire are electrically connected to a monitoring body, and a ground wire is electrically connected to the bottom of the monitoring body. Two alarms are symmetrically fixedly connected to the upper surface of the monitoring body, and the alarms are electrically connected to the monitoring body.

[0012] Preferably, a wire threading groove is provided inside the monitoring body, and the end of the wire threading groove is arranged opposite to the first clamping jaw and the second clamping jaw.

[0013] Preferably, a handle is fixedly mounted on the upper surface of the monitoring body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model sets a synchronization component to make the two monitoring wheels rotate synchronously, and the monitoring blocks on the monitoring wheels are set in a staggered and complementary manner, so that when monitoring the wires, it is ensured that there are no gaps in the monitoring of the wires, preventing inaccurate monitoring results. Different from traditional monitoring devices, the monitoring accuracy is greatly improved.

[0016] 2. The utility model monitors the wire by arranging two pulleys and belts and synchronously driving two monitoring wheels through two gears, so that the two monitoring wheels can rotate synchronously in opposite directions, thereby allowing the wire to pass stably.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model secondary circuit multi-point grounding online monitoring device;

[0019] Figure 2 It is a structural schematic diagram of the monitoring wheel in the online monitoring device for multi-point grounding of a secondary circuit of the utility model;

[0020] Figure 3 for Figure 1 The structure enlarged diagram of the local A part;

[0021] Figure 4 for Figure 1 A magnified view of the structure of part B in the middle.

[0022] In the figure: 1. monitoring body; 2. first mounting plate; 3. second mounting plate; 4. first monitoring wheel; 5. second monitoring wheel; 6. monitoring block; 7. first gear; 8. first pulley; 9. second gear; 10. third mounting plate; 11. first horizontal plate; 12. second horizontal plate; 13. first slide bar; 14. second slide bar; 15. first clamp; 16. second clamp; 17. second pulley; 18. belt; 19. first spring; 20. second spring; 21. first connecting line; 22. second connecting line; 23. ground wire; 24. alarm; 25. wire threading groove; 26. handle. 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A secondary circuit multi-point grounding online monitoring device of the present embodiment includes a monitoring body 1, a first mounting plate 2 and a second mounting plate 3 are symmetrically fixedly installed on the side of the monitoring body 1, a first monitoring wheel 4 is rotatably connected to the bottom of the first mounting plate 2, and a second monitoring wheel 5 is rotatably connected to the bottom of the second mounting plate 3, and a plurality of monitoring blocks 6 are evenly installed on the sides of the first monitoring wheel 4 and the second monitoring wheel 5, the end of the rotating shaft of the first monitoring wheel 4 passes through the upper surface of the first mounting plate 2 and is fixedly installed with a first gear 7, the upper surface of the first mounting plate 2 is rotatably connected with a first pulley 8, and the upper surface of the first pulley 8 is fixedly installed with a second gear 9, the first gear 7 is meshed with the second gear 9, the monitoring block 6 on the first monitoring wheel 4 and the monitoring block 6 on the second monitoring wheel 5 are staggered and complementary, a synchronization component is provided on the upper surface of the second mounting plate 3, and a clamping component is provided between the first mounting plate 2 and the second mounting plate 3.

[0025] like Figure 1-4As shown, the secondary circuit multi-point grounding online monitoring device in the utility model is similar to the existing secondary circuit multi-point grounding online monitoring system, such as a secondary circuit multi-point grounding online monitoring device with publication number CN215180773U. The main improvement of the utility model is that when the grounding monitoring of the conductor is performed, a first monitoring wheel 4 and a second monitoring wheel 5 are set, and offset complementary monitoring blocks 6 are set on the first monitoring wheel 4 and the second monitoring wheel 5, which are connected to the monitoring body 1 and then connected to the ground wire 23. When the conductor is grounded at multiple points, the alarms 24 corresponding to the first monitoring wheel 4 and the second monitoring wheel 5 will sound an alarm. When monitoring the conductor, after a monitoring block 6 on the first monitoring wheel 4 performs multi-point grounding monitoring on the first section of the conductor, the monitoring block 6 on the second monitoring wheel 5 will perform multi-point grounding monitoring on the second section of the conductor. There will be no monitoring blind spot, and the entire section of the conductor can be monitored.

[0026] like Figure 1-4 As shown, the clamping assembly includes a third mounting plate 10, a first transverse plate 11, a second transverse plate 12, a first slide bar 13, a second slide bar 14, a first clamping jaw 15 and a second clamping jaw 16. The monitoring body 1 is located on one side of the first mounting plate 2 and is fixedly aligned and fixedly installed with the third mounting plate 10 in the longitudinal direction. The first transverse plate 11 is fixedly installed between the first mounting plate 2 and the second mounting plate 3. The second transverse plate 12 is fixedly installed on the side of the third mounting plate 10. The first slide bar 13 is slidably connected to the upper surface of the first transverse plate 11, and the second slide bar 14 is slidably connected to the lower surface of the second transverse plate 12. The end of the first slide bar 13 passes through the first transverse plate 11 and is fixedly installed with the first clamping jaw 15. The top of the second slide bar 14 passes through the second transverse plate 12 and is fixedly installed with the second clamping jaw 16. The first clamping jaw 15 is arranged opposite to the second clamping jaw 16; the synchronous assembly includes a second pulley 17 and a belt 18. The rotating shaft of the second monitoring wheel 5 passes through the upper surface of the second mounting plate 3 and is fixedly installed with the second pulley 17. The first pulley 8 and the second pulley A belt 18 is sleeved between the pulleys 17; a first spring 19 is slidably sleeved on the wall of the first slide bar 13, and two ends of the first spring 19 are respectively fixedly connected to the upper surface of the first cross plate 11 and the top of the first slide bar 13, and a second spring 20 is slidably sleeved on the wall of the second slide bar 14, and two ends of the second spring 20 are respectively fixedly connected to the lower surface of the second cross plate 12 and the bottom end of the second slide bar 14; a first connecting line 21 is rotatably connected to the upper surface of the first gear 7, and a second connecting line 22 is rotatably connected to the upper surface of the second pulley 17, and the ends of the first connecting line 21 and the second connecting line 22 are electrically connected to the monitoring body 1, and a ground wire 23 is electrically connected to the bottom of the monitoring body 1, and two alarms 24 are symmetrically fixedly connected to the upper surface of the monitoring body 1, and the alarms 24 are electrically connected to the monitoring body 1; the clamping component is used to ensure that the wire can be clamped, and the synchronization component is used to ensure that the first monitoring wheel 4 and the second monitoring wheel 5 can rotate synchronously in opposite directions, thereby realizing the linkage monitoring of the wire.

[0027] like Figure 1 As shown, a wire threading groove 25 is provided inside the monitoring body 1, and the end of the wire threading groove 25 is arranged opposite to the first clamping jaw 15 and the second clamping jaw 16; a handle 26 is fixedly installed on the upper surface of the monitoring body 1 to ensure that the wire can pass through the device smoothly and facilitate the staff to carry the device.

[0028] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A secondary circuit multi-point grounding online monitoring device, comprising a monitoring body (1), characterized in that: The monitoring body (1) is symmetrically fixedly mounted with a first mounting plate (2) and a second mounting plate (3) on the side thereof; the first mounting plate (2) is rotatably connected with a first monitoring wheel (4) at the bottom thereof; the second mounting plate (3) is rotatably connected with a second monitoring wheel (5) at the bottom thereof; a plurality of monitoring blocks (6) are evenly mounted on the sides of the first monitoring wheel (4) and the second monitoring wheel (5); the end of the rotating shaft of the first monitoring wheel (4) passes through the upper surface of the first mounting plate (2) and is fixedly mounted with a first gear (7); the upper surface of the first mounting plate (2) is rotatably connected with a first pulley (8); the upper surface of the first pulley (8) is fixedly mounted with a second gear (9); the first gear (7) meshes with the second gear (9); the monitoring block (6) on the first monitoring wheel (4) and the monitoring block (6) on the second monitoring wheel (5) are offset and complementary; the upper surface of the second mounting plate (3) is provided with a synchronization component; and a clamping component is provided between the first mounting plate (2) and the second mounting plate (3).

2. A secondary circuit multi-point grounding online monitoring device according to claim 1, characterized in that: The clamping assembly comprises a third mounting plate (10), a first transverse plate (11), a second transverse plate (12), a first sliding bar (13), a second sliding bar (14), a first clamping claw (15) and a second clamping claw (16); the monitoring body (1) is located on one side of the first mounting plate (2) and is fixedly and longitudinally aligned with the third mounting plate (10); the first transverse plate (11) is fixedly installed between the first mounting plate (2) and the second mounting plate (3); the second transverse plate (12) is fixedly installed on the side of the third mounting plate (10); the first sliding bar (13) is slidably connected to the upper surface of the first transverse plate (11); the second sliding bar (14) is slidably connected to the lower surface of the second transverse plate (12); the end of the first sliding bar (13) passes through the first transverse plate (11) and is fixedly installed with the first clamping claw (15); the top of the second sliding bar (14) passes through the second transverse plate (12) and is fixedly installed with the second clamping claw (16); the first clamping claw (15) is arranged opposite to the second clamping claw (16).

3. The secondary circuit multi-point grounding online monitoring device according to claim 1 is characterized in that: The synchronous assembly comprises a second pulley (17) and a belt (18); the rotating shaft of the second monitoring wheel (5) passes through the upper surface of the second mounting plate (3) and is fixedly mounted with the second pulley (17); and the belt (18) is sleeved between the first pulley (8) and the second pulley (17).

4. The secondary circuit multi-point grounding online monitoring device according to claim 2 is characterized in that: The first slide bar (13) is slidably sleeved with a first spring (19), and two ends of the first spring (19) are respectively fixedly connected to the upper surface of the first transverse plate (11) and the top end of the first slide bar (13); the second slide bar (14) is slidably sleeved with a second spring (20), and two ends of the second spring (20) are respectively fixedly connected to the lower surface of the second transverse plate (12) and the bottom end of the second slide bar (14).

5. The secondary circuit multi-point grounding online monitoring device according to claim 3 is characterized in that: The upper surface of the first gear (7) is rotatably connected to a first connecting line (21), the upper surface of the second pulley (17) is rotatably connected to a second connecting line (22), the ends of the first connecting line (21) and the second connecting line (22) are electrically connected to a monitoring body (1), the bottom of the monitoring body (1) is electrically connected to a ground wire (23), the upper surface of the monitoring body (1) is symmetrically fixedly connected to two alarms (24), and the alarms (24) are electrically connected to the monitoring body (1).

6. The secondary circuit multi-point grounding online monitoring device according to claim 1 is characterized in that: A wire threading groove (25) is provided inside the monitoring body (1), and the end of the wire threading groove (25) is arranged opposite to the first clamping jaw (15) and the second clamping jaw (16).

7. The secondary circuit multi-point grounding online monitoring device according to claim 1 is characterized in that: A handle (26) is fixedly mounted on the upper surface of the monitoring body (1).

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