Transformer iron core grounding on-line monitoring device

Abstract

The utility model relates to the technical field of transformers, and discloses a transformer iron core grounding on-line monitoring device which comprises a monitoring device body, the bottom of the monitoring device body is fixedly connected with a hollow column, a telescopic rod is installed in the hollow column, the bottom of the telescopic rod is provided with a telescopic sleeve, and the telescopic sleeve is fixedly connected with the hollow column. The telescopic rod is slidably connected with the inner diameter of the telescopic sleeve, the front end of the telescopic sleeve is fixedly connected with a shell, and through holes are formed in the two sides of the shell. According to the transformer iron core grounding on-line monitoring device, through cooperative use of the telescopic rod and the telescopic sleeve, a user can carry out monitoring operation through equipment within a safe distance, the telescopic length of the telescopic rod is adjusted by releasing limiting of the telescopic sleeve, and the safety of the user is improved. And after adjustment is completed, the control rod is pulled to enable the insertion rod to be inserted into the inner diameter of the insertion groove so as to complete length adjustment, so that a user can flexibly adjust according to the actual use condition, and the safety of the user is guaranteed to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an online monitoring device for transformer core grounding. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core (magnetic core). Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc.

[0003] A Chinese patent discloses an online monitoring device for transformer core grounding (authorization announcement number CN209542746U). The patented technology is handheld, lightweight, simple in structure, not restricted by geographical environment, and improves work efficiency.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing monitoring devices need to be used by workers at close range by hand, which poses a safety hazard of electric shock. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the monitoring device in the prior art needs to be used by the staff in a handheld manner at a close distance, which poses a safety hazard of electric shock. For this reason, we propose an online monitoring device for transformer core grounding.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a transformer core grounding online monitoring device, comprising a monitoring device body, a hollow column fixedly connected to the bottom of the monitoring device body, a telescopic rod installed inside the hollow column, a telescopic sleeve arranged at the bottom of the telescopic rod, the telescopic rod is slidably connected to the inner diameter of the telescopic sleeve, the front end of the telescopic sleeve is fixedly connected to a shell, through holes are provided on both sides of the shell, a transmission rod is slidably connected inside the through holes, the opposite back sides of the transmission rod are fixedly connected to connecting blocks, a plug rod is fixedly connected to the side of the connecting block close to the telescopic sleeve, a plurality of slots for use with the plug rod are provided on the surface of the telescopic sleeve, a groove is provided at one end of the transmission rod away from the connecting block, a connecting rod is rotatably connected to the inside of the groove via a first rotating shaft, the end of the connecting rod away from the groove is rotatably connected to a U-shaped block via a second rotating shaft, and a control rod is fixedly connected to the front end of the U-shaped block.

[0007] Preferably, the front end of the control rod passes through the front end of the shell and is fixedly connected to a limiting block, and the limiting block is used in conjunction with the control rod.

[0008] Preferably, the top and bottom of the U-shaped block are both fixedly connected with a first sliding block, and the top and bottom of the inner cavity of the shell are both provided with a first sliding groove used in conjunction with the first sliding block.

[0009] Preferably, a tension spring is sleeved on the surface of the control rod, the rear end of the tension spring is fixedly connected to the U-shaped block, and the front end of the tension spring is fixedly connected to the front end of the inner cavity of the shell.

[0010] Preferably, a sheath is provided on the surface of the telescopic sleeve, and the sheath is made of rubber.

[0011] Preferably, the front end and the rear end of the top of the telescopic rod are both provided with telescopic grooves, the interior of the telescopic groove is slidably connected to a limiting column, the front end and the rear end of the hollow column are both provided with limiting holes used in conjunction with the limiting column, the interior of the telescopic groove is fixedly connected with a spring, and the end of the spring close to the limiting column is fixedly connected to the limiting column.

[0012] Preferably, the top and the bottom of the limiting column are both fixedly connected with a second sliding block, and the top and the bottom of the telescopic slot are both provided with a second sliding groove used in conjunction with the second sliding block.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, by using the telescopic rod and the telescopic sleeve in coordination, the user can perform monitoring operations through the equipment at a safe distance, and by releasing the limit of the telescopic sleeve, the telescopic length of the telescopic rod can be adjusted. When the adjustment is completed, the control rod is pulled to insert the insertion rod into the inner diameter of the slot to complete the length adjustment, so that the user can flexibly adjust according to the actual usage situation, thereby ensuring the safety of the user to the greatest extent.

[0015] In the utility model, the limiting post is pressed to make the limiting post disengage from the inner diameter of the limiting hole and enter the interior of the telescopic groove, thereby releasing the limitation on the hollow post, so that the user can separate the hollow post and the telescopic rod, thereby facilitating carrying. When it is needed, the telescopic rod is inserted into the interior of the hollow post, and the thrust generated by the spring causes the limiting post to be inserted into the inner diameter of the limiting hole, thereby achieving a quick connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 5 For this utility model Figure 4 A partial enlarged view of point B in the middle;

[0021] Figure 6 For this utility model Figure 4 A partial enlarged view of point C in the middle.

[0022] Legend: 1. Monitoring device body; 2. Hollow column; 3. Telescopic rod; 4. Telescopic sleeve; 5. Shell; 6. Through hole; 7. Transmission rod; 8. Connecting block; 9. Insert rod; 10. Slot; 11. Groove; 12. Connecting rod; 13. U-shaped block; 14. Control rod; 15. Limit block; 16. First slider; 17. First slide groove; 18. Tension spring; 19. Sheath; 20. Telescopic groove; 21. Limit column; 22. Limit hole; 23. Spring; 24. Second slider; 25. Second slide groove. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1-Figure 3As shown, the utility model provides a technical solution: an online monitoring device for transformer core grounding, comprising a monitoring device body 1, a hollow column 2 is fixedly connected to the bottom of the monitoring device body 1, a telescopic rod 3 is installed inside the hollow column 2, a telescopic sleeve 4 is arranged at the bottom of the telescopic rod 3, the telescopic rod 3 is slidably connected to the inner diameter of the telescopic sleeve 4, a shell 5 is fixedly connected to the front end of the telescopic sleeve 4, through holes 6 are provided on both sides of the shell 5, a transmission rod 7 is slidably connected inside the through hole 6, a connecting block 8 is fixedly connected to the opposite back side of the transmission rod 7, a plug rod 9 is fixedly connected to the side of the connecting block 8 close to the telescopic sleeve 4, a plurality of slots 10 used in conjunction with the plug rod 9 are provided on the surface of the telescopic sleeve 4, a groove 11 is provided at one end of the transmission rod 7 away from the connecting block 8, a connecting rod 12 is rotatably connected to the inside of the groove 11 through a first rotating shaft, and the connecting rod 12 The end away from the groove 11 is rotatably connected to a U-shaped block 13 through a second rotating shaft, and the front end of the U-shaped block 13 is fixedly connected to a control rod 14. Through the coordinated use of the telescopic rod 3 and the telescopic sleeve 4, the user can perform monitoring operations through the equipment at a safe distance. By pressing the control rod 14, the U-shaped block 13 drives the connecting rod 12 to move, and the transmission rod 7 drives the connecting block 8 through the connecting rod 12 to disengage the insertion rod 9 from the inner diameter of the slot 10, thereby releasing the limit on the telescopic sleeve 4, and adjusting the telescopic length by moving the telescopic rod 3. When the adjustment is completed, the U-shaped block 13 drives the connecting rod 12 by pulling the control rod 14, so that the transmission rod 7 drives the insertion rod 9 through the connecting block 8 to insert into the inner diameter of the slot 10 to complete the length adjustment, so that the user can flexibly adjust according to the actual usage situation to ensure the user's safety to the greatest extent.

[0025] Reference Figure 2 As shown, in this embodiment: the front end of the control rod 14 passes through the front end of the shell 5 and is fixedly connected to the limiting block 15. The limiting block 15 is used in conjunction with the control rod 14. The limiting block 15 is provided to limit the movement of the control rod 14, thereby preventing the control rod 14 from moving too much when driving the U-shaped block 13 to move, thereby causing the control rod 14 to enter the interior of the shell 5 as a whole.

[0026] Reference Figure 3 and Figure 6 As shown, in this embodiment: the top and bottom of the U-shaped block 13 are fixedly connected with a first slider 16, and the top and bottom of the inner cavity of the shell 5 are provided with a first slide groove 17 used in conjunction with the first slider 16. When the U-shaped block 13 moves, the first slider 16 and the first slide groove 17 are used in conjunction with each other to guide and maintain the moving path of the U-shaped block 13, thereby preventing the U-shaped block 13 from deflecting when moving.

[0027] Reference Figure 3As shown, in this embodiment: a tension spring 18 is sleeved on the surface of the control rod 14, the rear end of the tension spring 18 is fixedly connected to the U-shaped block 13, and the front end of the tension spring 18 is fixedly connected to the front end of the inner cavity of the shell 5. When the insertion rod 9 is inserted into the inner diameter of the slot 10, the tension force generated by the tension spring 18 limits the U-shaped block 13, preventing the U-shaped block 13 from moving and causing the insertion rod 9 to be detached from the inner diameter of the slot 10.

[0028] Reference Figure 1 As shown, in this embodiment: the surface of the telescopic sleeve 4 is provided with a sheath 19, and the material of the sheath 19 is rubber. The sheath 19 is provided to increase the friction force, so that the user can hold the telescopic sleeve 4 more firmly. At the same time, the rubber material has a good insulating effect, which can prevent the user from getting an electric shock.

[0029] Reference Figure 4 and Figure 5 As shown, in this embodiment: a telescopic groove 20 is provided at the front end and the rear end of the top of the telescopic rod 3, and a limiting column 21 is slidably connected inside the telescopic groove 20. A limiting hole 22 used in conjunction with the limiting column 21 is provided at the front end and the rear end of the hollow column 2. A spring 23 is fixedly connected inside the telescopic groove 20, and one end of the spring 23 close to the limiting column 21 is fixedly connected to the limiting column 21. By pressing the limiting column 21, the limiting column 21 is disengaged from the inner diameter of the limiting hole 22 and enters the interior of the telescopic groove 20, thereby releasing the limitation of the hollow column 2, so that the user can separate the hollow column 2 and the telescopic rod 3, thereby facilitating carrying. When needed, the telescopic rod 3 is inserted into the interior of the hollow column 2, and the limiting column 21 is inserted into the inner diameter of the limiting hole 22 by the thrust generated by the spring 23, so as to achieve a quick connection effect.

[0030] Reference Figure 5 As shown, in this embodiment: the top and bottom of the limit column 21 are fixedly connected with the second slider 24, and the top and bottom of the telescopic slot 20 are provided with a second slide groove 25 used in conjunction with the second slider 24. When the spring 23 drives the limit column 21 to move, the second slider 24 and the second slide groove 25 are used in conjunction to prevent the limit column 21 from escaping from the inner diameter of the telescopic slot 20.

[0031] Working principle of the utility model: the user can monitor the operation through the equipment at a safe distance by using the telescopic rod 3 and the telescopic sleeve 4 in coordination. The user can make the monitoring operation through the equipment by pressing the control rod 14 to make the U-shaped block 13 drive the connecting rod 12 to move. When the U-shaped block 13 moves, the first slider 16 and the first slide groove 17 are used in coordination to guide and maintain the moving path of the U-shaped block 13 to prevent the U-shaped block 13 from deviating when moving. The transmission rod 7 drives the connecting block 8 through the connecting rod 12 to make the insertion rod 9 disengage from the inner diameter of the slot 10, thereby releasing the limit of the telescopic sleeve 4. The telescopic length is adjusted by moving the telescopic rod 3. When the adjustment is completed, the U-shaped block 13 drives the connecting rod 12 by pulling the control rod 14, so that the transmission rod 7 drives the insertion rod 9 to be inserted into the inner diameter of the slot 10 through the connecting block 8. The length of the plug 9 can be adjusted according to the actual usage, so that the user can flexibly adjust it according to the actual usage, and the safety of the user can be guaranteed to the greatest extent. When the plug rod 9 is inserted into the inner diameter of the slot 10, the tension generated by the tension spring 18 limits the U-shaped block 13, preventing the U-shaped block 13 from moving and causing the plug rod 9 to be separated from the inner diameter of the slot 10. At the same time, the limit block 15 is provided to limit the movement of the control rod 14, preventing the control rod 14 from moving too much when driving the U-shaped block 13 to move, thereby causing the control rod 14 to enter the interior of the shell 5 as a whole. The sheath 19 is provided to increase the friction force, so that the user can take the telescopic sleeve 4 more firmly. At the same time, the rubber material has a good insulation effect, which can prevent the user from getting an electric shock.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A transformer core grounding online monitoring device, comprising a monitoring device body (1), characterized in that: The bottom of the monitoring device body (1) is fixedly connected to a hollow column (2), a telescopic rod (3) is installed inside the hollow column (2), a telescopic sleeve (4) is arranged at the bottom of the telescopic rod (3), the telescopic rod (3) is slidably connected to the inner diameter of the telescopic sleeve (4), the front end of the telescopic sleeve (4) is fixedly connected to a shell (5), both sides of the shell (5) are provided with through holes (6), the inside of the through holes (6) is slidably connected to a transmission rod (7), the opposite back sides of the transmission rod (7) are fixedly connected to a connecting block (8), the A plug rod (9) is fixedly connected to a side of the connection block (8) close to the telescopic sleeve (4); a plurality of slots (10) for use with the plug rod (9) are provided on the surface of the telescopic sleeve (4); a groove (11) is provided at one end of the transmission rod (7) away from the connection block (8); a connecting rod (12) is rotatably connected to the inside of the groove (11) via a first rotating shaft; an end of the connecting rod (12) away from the groove (11) is rotatably connected to a U-shaped block (13) via a second rotating shaft; a control rod (14) is fixedly connected to the front end of the U-shaped block (13).

2. The transformer core grounding online monitoring device according to claim 1, characterized in that: The front end of the control rod (14) passes through the front end of the housing (5) and is fixedly connected to a limit block (15), and the limit block (15) is used in conjunction with the control rod (14).

3. The transformer core grounding online monitoring device according to claim 1, characterized in that: The top and bottom of the U-shaped block (13) are both fixedly connected to a first sliding block (16), and the top and bottom of the inner cavity of the shell (5) are both provided with a first sliding groove (17) for use with the first sliding block (16).

4. The transformer core grounding online monitoring device according to claim 1, characterized in that: A tension spring (18) is sleeved on the surface of the control rod (14), the rear end of the tension spring (18) is fixedly connected to the U-shaped block (13), and the front end of the tension spring (18) is fixedly connected to the front end of the inner cavity of the shell (5).

5. The transformer core grounding online monitoring device according to claim 1, characterized in that: The surface of the telescopic sleeve (4) is covered with a protective sleeve (19), and the material of the protective sleeve (19) is rubber.

6. The transformer core grounding online monitoring device according to claim 1, characterized in that: The front end and the rear end of the top of the telescopic rod (3) are both provided with telescopic grooves (20), the interior of the telescopic grooves (20) is slidably connected to a limiting column (21), the front end and the rear end of the hollow column (2) are both provided with limiting holes (22) used in conjunction with the limiting column (21), the interior of the telescopic grooves (20) is fixedly connected with a spring (23), and one end of the spring (23) close to the limiting column (21) is fixedly connected to the limiting column (21).

7. The transformer core grounding online monitoring device according to claim 6, characterized in that: The top and bottom of the limiting column (21) are both fixedly connected to a second sliding block (24), and the top and bottom of the telescopic slot (20) are both provided with a second sliding slot (25) for use in conjunction with the second sliding block (24).

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