Lightning arrester on-line monitoring device

Abstract

The utility model discloses a lightning arrester on-line monitoring device, which belongs to the technical field of lightning arrester on-line monitoring and comprises an on-line monitoring device body, connecting lugs are arranged on one side and at the bottom of the on-line monitoring device body, a wire holder is arranged on one side of each connecting lug, and each wire holder is locked and fixed on one side of the corresponding connecting lug through a locking assembly. According to the utility model, through the arrangement of the locking assembly, the wire holder and the wrapping post can be connected to the on-line monitoring device body through the connecting lugs, and when a wire harness needs to be connected to the on-line monitoring device body, a wire end can be sequentially inserted into the threading holes in the surfaces of the rotating seat and the wire holder; according to the on-line monitoring device, the rotating seat is rotated to wind the wire end on the surface of the wrapping post, the rotating seat and the wire holder are fixed together through the positioning assembly to prevent the problem that the wire end is loosened due to rotation of the rotating seat in the use process, and through the arrangement of the device, the wire harness can be connected to the on-line monitoring device body more quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of arrester online monitoring, in particular to an arrester online monitoring device. Background Art

[0002] In the power system, lightning arresters are widely used as protective devices for substations. The traditional lightning arrester monitoring method uses mechanical ammeters and counter meters to monitor the operating status of the lightning arrester. The measurement is inaccurate and cannot be transmitted remotely. The operating personnel can only go to the site to investigate the data. This not only has a large workload and low efficiency, but also cannot detect the operating failure of the lightning arrester in time. In order to solve these problems, electronic lightning arrester online monitoring devices have appeared in China, which have the functions of monitoring data and data transmission. However, when the existing lightning arrester online detection device is used, it needs to be connected to the lightning arrester and the ground wire through a wiring harness. When wiring, the wire ends are often wrapped and clamped with pliers, or the wire ends are tightened with bolts, which makes the wiring more troublesome.

[0003] For example, a Chinese patent with the authorization (announcement) number CN105467197B discloses an integrated arrester online monitoring device, specifically an arrester monitoring device and a measurement method that integrates a mechanical arrester monitoring device with an electronic arrester online monitoring device for gapless metal oxide arresters. The invention is composed of a mechanical arrester monitoring device and an electronic arrester online monitoring device connected in series, and the whole after the series connection is connected in parallel with the resistor. It can monitor the total current, resistive current, number of actions and time of action of the arrester online, and has the functions of local mechanical ammeter, counter meter display, remote communication, local data storage, etc. It improves the data measurement accuracy, realizes data remote transmission, and is also convenient for maintenance personnel to detect, maintain and install on-site, which meets the development requirements of smart substations, provides a new method for online monitoring of the insulation status of arresters, and is suitable for online monitoring of arresters of various voltage levels, and has broad application prospects.

[0004] The lightning arrester online monitoring device involved in the above patent does not have a structure for quick wiring at its wiring terminals, and still needs to be connected by winding or bolting the wire ends to the device. There is a problem of troublesome wiring, so we need to propose an online monitoring device for lightning arrester. Utility Model Content

[0005] The utility model aims to provide an arrester online monitoring device, which has the advantage of being able to quickly connect the arrester online monitoring device, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides an online monitoring device for a lightning arrester, comprising an online monitoring device body, one side and the bottom of the online monitoring device body are provided with connecting ears, one side of the connecting ear is provided with a wiring seat, the wiring seat is locked and fixed to one side of the connecting ear by a locking assembly, one side of the wiring seat is fixedly installed with a winding column, the surface of the winding column is rotatably installed with a rotating seat by a rotating assembly, the surfaces of the rotating seat and the wiring seat are provided with threading holes, and the surface of the wiring seat is slidably installed with a positioning assembly for positioning the rotating seat.

[0007] Preferably, the locking assembly includes a connecting hole opened on the surface of the connecting ear, a locking rod is fixedly installed on one side of the terminal block, one end of the locking rod passes through the connecting hole and extends to the external thread of the connecting ear and is connected to a locking nut, and one side of the locking nut is in contact with the surface of the connecting ear.

[0008] Preferably, the rotating assembly includes a limiting ring fixedly mounted on the surface of the winding column, the inner wall of the rotating seat is provided with an annular groove adapted to the limiting ring, and the surface of the limiting ring is rotatably connected to the inner wall of the annular groove.

[0009] Preferably, the positioning assembly includes a positioning sleeve slidably mounted on the surface of the terminal block, a reset assembly is arranged between one side of the positioning sleeve and the surface of the connecting ear, a positioning groove is opened on the inner wall of the positioning sleeve, and a positioning rod matching the positioning groove is fixedly mounted on the surface of the terminal block and the rotating seat, and the inner wall of the positioning groove is slidably connected to the surface of the positioning rod.

[0010] Preferably, a limiting ring is fixedly mounted on one side of the positioning rod on the surface of the rotating seat, and one side of the limiting ring contacts one end of the positioning sleeve.

[0011] Preferably, the reset assembly includes a pull plate fixedly mounted on one side of the positioning sleeve, compression springs are fixedly mounted on the four corners of one side of the pull plate, one end of the compression spring away from the pull plate is fixedly connected to the surface of the connecting ear, and a guide assembly is also provided between the pull plate and the connecting ear.

[0012] Preferably, the guide assembly includes a guide rod fixedly mounted on one side of the pull plate, the compression spring is sleeved on the surface of the guide rod, the surface of the connecting ear is provided with a guide hole matched with the guide rod, and the surface of the guide rod is slidably connected to the inner wall of the guide hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can connect the terminal seat and the winding post to the main body of the online monitoring device through the setting of the locking component. When the wiring harness needs to be connected to the main body of the online monitoring device, the wire ends can be inserted into the threading holes on the surface of the rotating seat and the terminal seat in turn, and then the rotating seat is rotated to wind the wire ends around the surface of the winding post. The rotating seat and the terminal seat are fixed together by the positioning component to prevent the rotating seat from rotating during use and causing the wire ends to loosen. Through the setting of the device, the wiring harness can be connected to the main body of the online monitoring device more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the locking assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the reset assembly of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the positioning component of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the rotating assembly of the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the wiring structure of the arrester online monitoring device.

[0021] In the figure: 1. Online monitoring device body; 2. Connecting ear; 3. Terminal block; 4. Winding column; 5. Rotating seat; 6. Threading hole; 7. Connecting hole; 8. Locking rod; 9. Locking nut; 10. Limiting ring; 11. Annular groove; 12. Positioning sleeve; 13. Positioning groove; 14. Positioning rod; 15. Limiting ring; 16. Pull plate; 17. Compression spring; 18. Guide rod; 19. Guide hole. DETAILED DESCRIPTION

[0022] 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 field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 6The utility model provides an online monitoring device for a lightning arrester, including an online monitoring device body 1, a connecting ear 2 is provided on one side and the bottom of the online monitoring device body 1, a wiring seat 3 is provided on one side of the connecting ear 2, and the wiring seat 3 is locked and fixed to one side of the connecting ear 2 through a locking assembly, the locking assembly includes a connecting hole 7 opened on the surface of the connecting ear 2, a locking rod 8 is fixedly installed on one side of the wiring seat 3, one end of the locking rod 8 passes through the connecting hole 7 and extends to the external thread of the connecting ear 2 and is connected to a locking nut 9, and one side of the locking nut 9 is in contact with the surface of the connecting ear 2.

[0024] In this embodiment, the terminal block 3 is connected to the winding post 4. When it needs to be installed on the online monitoring device body 1, the locking rod 8 on one side of the terminal block 3 can be passed through the connecting hole 7 on the surface of the connecting ear 2, and then the locking nut 9 is tightened at one end of the locking rod 8, so that the terminal block 3 and the winding post 4 are installed on the online monitoring device body 1.

[0025] Preferably, a winding pole 4 is fixedly mounted on one side of the terminal block 3, and a rotating seat 5 is rotatably mounted on the surface of the winding pole 4 through a rotating assembly. The rotating assembly includes a limiting ring 10 fixedly mounted on the surface of the winding pole 4, and an annular groove 11 matched with the limiting ring 10 is provided on the inner wall of the rotating seat 5. The surface of the limiting ring 10 is rotatably connected to the inner wall of the annular groove 11, and a threading hole 6 is provided on the surface of the rotating seat 5 and the terminal block 3.

[0026] By setting the rotating assembly, the rotating seat 5 can be rotatably installed on the surface of the winding pole 4. When the rotating seat 5 is rotated, the annular groove 11 will be driven to rotate on the surface of the limiting ring 10. After the user inserts one end of the wiring harness into the threading holes 6 on the surface of the rotating seat 5 and the wiring seat 3 in turn, the user can rotate the rotating seat 5 to wind one end of the wiring harness around the surface of the winding pole 4, thereby connecting the wiring harness to the online monitoring device body 1.

[0027] Among them, a positioning component for positioning the rotating seat 5 is slidably installed on the surface of the terminal block 3, and the positioning component includes a positioning sleeve 12 slidably installed on the surface of the terminal block 3, and the inner wall of the positioning sleeve 12 is provided with a positioning groove 13. The surfaces of the terminal block 3 and the rotating seat 5 are fixedly installed with a positioning rod 14 adapted to the positioning groove 13, and the inner wall of the positioning groove 13 is slidably connected to the surface of the positioning rod 14. A limiting ring 15 is fixedly installed on one side of the positioning rod 14 on the surface of the rotating seat 5, and one side of the limiting ring 15 is in contact with one end of the positioning sleeve 12.

[0028] By setting the positioning component, when it is necessary to rotate the rotating seat 5, the positioning sleeve 12 can be moved in the direction of the wiring seat 3, so that the positioning groove 13 in the inner cavity of the positioning sleeve 12 is disconnected from the positioning rod 14 on the surface of the rotating seat 5. After the rotating seat 5 is rotated to wrap one end of the wiring harness around the surface of the winding post 4, the positioning sleeve 12 can be reset to position the rotating seat 5 to prevent the rotating seat 5 from rotating during normal use of the device and causing the wiring harness to loosen from the surface of the winding post 4.

[0029] It is worth mentioning that a reset assembly is arranged between one side of the positioning sleeve 12 and the surface of the connecting ear 2, and the reset assembly includes a pull plate 16 fixedly installed on one side of the positioning sleeve 12, and compression springs 17 are fixedly installed on the four corners of one side of the pull plate 16, and one end of the compression spring 17 away from the pull plate 16 is fixedly connected to the surface of the connecting ear 2, and a guide assembly is also arranged between the pull plate 16 and the connecting ear 2, and the guide assembly includes a guide rod 18 fixedly installed on one side of the pull plate 16, and the compression spring 17 is sleeved on the surface of the guide rod 18. A guide hole 19 matched with the guide rod 18 is opened on the surface of the connecting ear 2, and the surface of the guide rod 18 is slidably connected to the inner wall of the guide hole 19.

[0030] By setting the reset component, when the positioning sleeve 12 is pulled in the direction of the terminal block 3, the movement of the pull plate 16 will squeeze the compression spring 17. After one end of the wire harness is wound around the surface of the winding column 4, the user can loosen the pull plate 16. At this time, the reaction force generated by the contraction of the compression spring 17 will push the positioning sleeve 12 to reset, so that the positioning groove 13 in its inner cavity is clamped and fixed on the surface of the positioning rod 14. By setting the guide component, the stability of the movement of the pull plate 16 can be improved. When the pull plate 16 moves, it will drive the guide rod 18 to slide in the inner cavity of the guide hole 19.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online monitoring device for a lightning arrester, comprising an online monitoring device body (1), characterized in that: A connecting ear (2) is provided on one side and the bottom of the body (1) of the online monitoring device, a wiring seat (3) is provided on one side of the connecting ear (2), the wiring seat (3) is locked and fixed to one side of the connecting ear (2) by a locking assembly, a winding post (4) is fixedly installed on one side of the wiring seat (3), a rotating seat (5) is rotatably installed on the surface of the winding post (4) by a rotating assembly, the surfaces of the rotating seat (5) and the wiring seat (3) are both provided with threading holes (6), and a positioning assembly for positioning the rotating seat (5) is slidably installed on the surface of the wiring seat (3).

2. The arrester online monitoring device according to claim 1, characterized in that: The locking assembly comprises a connecting hole (7) formed on the surface of the connecting ear (2); a locking rod (8) is fixedly mounted on one side of the wiring seat (3); one end of the locking rod (8) passes through the connecting hole (7) and extends to the external thread of the connecting ear (2) and is connected to a locking nut (9); one side of the locking nut (9) is in contact with the surface of the connecting ear (2).

3. The arrester online monitoring device according to claim 1, characterized in that: The rotating assembly comprises a limiting ring (10) fixedly mounted on the surface of the winding pole (4); the inner wall of the rotating seat (5) is provided with an annular groove (11) adapted to the limiting ring (10); the surface of the limiting ring (10) is rotatably connected to the inner wall of the annular groove (11).

4. The arrester online monitoring device according to claim 1, characterized in that: The positioning assembly comprises a positioning sleeve (12) slidably mounted on the surface of the wiring seat (3); a reset assembly is arranged between one side of the positioning sleeve (12) and the surface of the connecting ear (2); a positioning groove (13) is provided on the inner wall of the positioning sleeve (12); positioning rods (14) adapted to the positioning groove (13) are fixedly mounted on the surfaces of the wiring seat (3) and the rotating seat (5); and the inner wall of the positioning groove (13) is slidably connected to the surface of the positioning rod (14).

5. The arrester online monitoring device according to claim 4, characterized in that: A limiting ring (15) is fixedly mounted on one side of the positioning rod (14) on the surface of the rotating seat (5), and one side of the limiting ring (15) is in contact with one end of the positioning sleeve (12).

6. The arrester online monitoring device according to claim 4, characterized in that: The reset assembly comprises a pull plate (16) fixedly mounted on one side of the positioning sleeve (12); compression springs (17) are fixedly mounted on four corners of one side of the pull plate (16); one end of the compression spring (17) away from the pull plate (16) is fixedly connected to the surface of the connecting ear (2); and a guide assembly is also provided between the pull plate (16) and the connecting ear (2).

7. The arrester online monitoring device according to claim 6, characterized in that: The guide assembly comprises a guide rod (18) fixedly mounted on one side of the pull plate (16); the compression spring (17) is sleeved on the surface of the guide rod (18); the surface of the connecting ear (2) is provided with a guide hole (19) adapted to the guide rod (18); the surface of the guide rod (18) is slidably connected to the inner wall of the guide hole (19).

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