High-voltage cable partial discharge testing device

Abstract

The utility model discloses a high-voltage cable partial discharge testing device, which relates to the technical field of partial discharge testing and comprises a monitoring host, a host shell is arranged outside the monitoring host, and a touch display screen, a stop button, a start button, a data transmission interface, an emergency stop button, a control circuit interface and a power supply interface are arranged on the monitoring host. The upper part of the host shell is provided with a host cover, the lower part of the host shell is provided with a base, and the host shell is connected with the base through a pair of folding lifting mechanisms. The folding lifting mechanisms are additionally arranged at the bottom of the host shell, so that the host shell is stably supported at any height within a certain range; the process of finding a placement position which is convenient to operate and wire and is not easy to disturb in actual use is omitted, and the use efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of partial discharge testing, in particular to a high-voltage cable partial discharge testing device. Background Art

[0002] When high-voltage cables are subjected to working voltage, local discharge may occur at the defective location of the insulation part, but a fixed discharge channel is generally not formed in the discharge area. If this state is maintained for a long time, the insulation part of the high-voltage cable will accelerate deterioration, causing the defects in the insulation part to expand, and eventually leading to the failure of the entire insulation layer.

[0003] In order to avoid partial discharge of high-voltage cables during normal operation, some devices such as cable shock wave partial discharge detection equipment can realize partial discharge detection of cables. The device has a monitoring host, which should be placed in a position that is convenient for operation and wiring and not easily disturbed, such as a table with a suitable position and height. However, it is difficult to find an ideal placement position in the actual use environment, which reduces the efficiency of equipment use.

[0004] Based on this, a high-voltage cable partial discharge test device is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a high-voltage cable partial discharge test device to solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-voltage cable partial discharge test device comprises a monitoring host, the outside of which is provided with a host housing, and the monitoring host is provided with a touch display screen, a stop button, a start button, a data transmission interface, an emergency stop button, a control circuit interface and a power supply interface.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: a host cover is provided at the upper portion of the host housing, a base is provided at the lower portion of the host housing, and the host housing and the base are connected via a pair of folding and lifting mechanisms.

[0010] The foldable lifting mechanism comprises an upper fixed block fixed to the lower surface of the main body shell, the upper fixed block is rotatably connected to the upper end of the first fixed support rod, the lower end of the first fixed support rod is rotatably connected to the upper end of the second fixed support rod, the lower end of the second fixed support rod is rotatably connected to the lower fixed block, the lower fixed block is rotatably connected to the inner bottom surface of the base, the middle part of the first fixed support rod is rotatably connected to the middle part of the first movable support rod through a stud, the stud is connected to the labor-saving rotating head, the stud is threadedly connected to the nut, the upper end of the first movable support rod is rotatably connected to the upper roller, the upper roller is in rolling contact with the lower surface of the main body shell, the lower end of the first movable support rod is rotatably connected to the upper end of the second movable support rod, the lower end of the second movable support rod is rotatably connected to the lower roller, the lower roller is in rolling contact with the inner bottom surface of the base, and the middle part of the second movable support rod is rotatably connected to the middle part of the second fixed support rod.

[0011] In an optional solution: the contact surface between the middle portion of the first fixed support rod and the middle portion of the first dynamic support rod is provided with anti-slip texture.

[0012] In an optional solution: a fixing buckle is provided on the host cover, a locking buckle is provided on the outside of the host shell, and the host cover and the host shell are hingedly connected by a hinge.

[0013] In an optional solution: a handle is provided on the host cover.

[0014] In an optional solution: upper magnetic blocks are provided on both sides of the lower end of the exterior of the host shell, and lower magnetic blocks are provided on both sides of the upper end of the exterior of the base.

[0015] In an optional solution: a sealing ring is provided on the upper surface of the main housing.

[0016] In an optional solution: an annular groove is provided on the bottom surface of the main housing.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The utility model adds a folding and lifting mechanism at the bottom of the main body shell, thereby achieving stable support of the main body shell at any height within a certain range, eliminating the process of finding a placement position that is convenient for operation and wiring and not easily disturbed in actual use, thereby improving the efficiency of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the partial cross-section structure of the utility model.

[0021] Figure 3 For this utility model Figure 2 A partial enlarged view of middle A.

[0022] Figure 4 For this utility model Figure 2 A partial enlarged view of B.

[0023] Figure 5 For this utility model Figure 2 A partial enlarged view of C in the middle.

[0024] Figure 6 This is a schematic diagram of the monitoring host of the utility model.

[0025] Notes on figure numbers: 101, monitoring host; 102, host housing; 103, host cover; 104, handle; 105, base; 106, hinge; 201, upper fixed block; 202, upper roller; 203, first fixed support rod; 204, second fixed support rod; 205, first movable support rod; 206, second movable support rod; 207, lower fixed block; 208, lower roller; 209, labor-saving turntable; 210, stud; 211, nut; 301, upper magnetic block; 302, lower magnetic block; 303, fixing buckle; 304, locking buckle; 401, ring groove; 402, sealing ring; 501, touch display screen; 502, stop button; 503, start button; 504, data transmission interface; 505, emergency stop button; 506, control circuit interface; 507, power interface. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, Figure 1-Figure 6 As shown, a high-voltage cable partial discharge test device comprises a monitoring host 101, wherein a host housing 102 is disposed on the outside of the monitoring host 101, and a touch screen 501, a stop button 505, a start button 503, a data transmission interface 504, an emergency stop button 505, a control circuit interface 506 and a power interface 507 are disposed on the monitoring host 101. The data transmission interface 504 is used to collect signal data, the stop button 502 and the start button 503 are used to start and end the partial discharge test, the touch screen 501 displays the test results and adjusts the parameters, the emergency stop button 505 can be used for emergency power-off to ensure safety under abnormal circumstances, the control circuit interface 506 outputs a control electrical signal, and the power interface 507 is the power input interface of the monitoring host 101.

[0029] In this embodiment, a host cover 103 is provided on the upper portion of the host housing 102, and a base 105 is provided on the lower portion of the host housing 102. The host housing 102 and the base 105 are connected via a pair of folding and lifting mechanisms. In actual use, the base 105 can be placed in an ideal position, and then the height of the monitoring host 101 can be adjusted. The pair of folding and lifting mechanisms follow, and when the ideal height is reached, the folding and lifting mechanisms are locked so that the folding and lifting mechanisms can stably support the monitoring host. Then, a series of operations such as wiring and control can be conveniently performed on the monitoring host 101.

[0030] In one embodiment, Figure 2-Figure 4 As shown, the folding and lifting mechanism includes an upper fixed block 201 fixed to the lower surface of the main body housing 102, the upper fixed block 201 is rotatably connected to the upper end of the first fixed support rod 203, the lower end of the first fixed support rod 203 is rotatably connected to the upper end of the second fixed support rod 204, the lower end of the second fixed support rod 204 is rotatably connected to the lower fixed block 207, the lower fixed block 207 is connected to the inner bottom surface of the base 105, the middle part of the first fixed support rod 203 is rotatably connected to the middle part of the first dynamic support rod 205 through a stud 210, the stud 210 is connected to the labor-saving rotating head 209, the stud 210 is threadedly connected to the nut 211, and the upper end of the first dynamic support rod 205 is rotatably connected to the upper roller 202 The upper roller 202 is in rolling contact with the lower surface of the main body shell 102, the lower end of the first movable support rod 205 is rotatably connected to the upper end of the second movable support rod 206, the lower end of the second movable support rod 206 is rotatably connected to the lower roller 208, the lower roller 208 is in rolling contact with the inner bottom surface of the base 105, and the middle part of the second movable support rod 206 is rotatably connected to the middle part of the second fixed support rod 204. When in use, the main body shell 102 is first pulled to the target height. During this process, the upper roller 202 moves closer to the upper fixed block 201, and the lower fixed block 207 moves closer to the lower roller 208, and then the two labor-saving rotating heads 209 are tightened to fix the folding lifting mechanism itself, thereby achieving the effect of supporting the main body shell 102 with a variable height.

[0031] In one embodiment, Figure 2 As shown, the contact surface between the middle part of the first fixed support rod 203 and the middle part of the first movable support rod 205 is provided with anti-slip grooves, so that when the labor-saving rotating head 209 is tightened, it is less likely for the first fixed support rod 203 and the first movable support rod 205 to rotate, and the entire folding and lifting mechanism is more stable when the labor-saving rotating head 209 is tightened.

[0032] In one embodiment, Figure 1 , Figure 2 and Figure 5As shown, the host cover 103 is provided with a fixing buckle 303, and the host housing 102 is provided with a lock buckle 304 on the outside. The host cover 103 and the host housing 102 are hinged by a hinge 106. When the monitoring host 101 is idle, the host cover 103 is closed, and the lock buckle 304 acts on the fixing buckle 303 to press the host cover 103 on the upper surface of the host housing 102, thereby protecting the monitoring host 101 in the host housing 102 and preventing the monitoring host 101 from being accidentally damaged.

[0033] In one embodiment, Figure 2 As shown, a handle 104 is provided on the host cover 103 to facilitate the transfer of the device.

[0034] In one embodiment, Figure 1 As shown, upper magnetic blocks 301 are provided on both sides of the lower end of the host housing 102, and lower magnetic blocks 302 are provided on both sides of the upper end of the base 105. When the monitoring host 101 is idle, the host housing 102 and the base 105 fit together under the magnetic force of the upper magnetic block 301 and the lower magnetic block 302, saving space when stored.

[0035] Example 2

[0036] In one embodiment, Figure 2 and Figure 5 As shown, a sealing ring 402 is provided on the upper surface of the host housing 102. After the host cover 103 is closed, the sealing ring 402 plays a sealing role to prevent water from entering during storage or transportation and causing damage to the device.

[0037] In one embodiment, Figure 1 As shown, the bottom surface of the host housing 102 is provided with an annular groove 401 , the shape of which matches the upper end surface of the base 105 , thereby increasing the stability of the base 105 when it is fitted with the host housing 102 .

[0038] The above embodiment discloses a high-voltage cable partial discharge test device, wherein, when the monitoring host 101 is used, the fitted base 105 and the host housing 102 are first pulled apart, and then the handle 104 is held by hand to adjust the height of the host housing 102, the folding lifting mechanism will follow, and then the two labor-saving rotating heads 209 are tightened to fix the folding lifting mechanism, and then the lock 304 is opened, the host cover 103 is opened, and the lines are connected to the corresponding interfaces respectively, and the parameters are adjusted by touching the display screen 501, and the start button 503 is pressed to start the test, and the stop button 502 is pressed at the end. If an abnormality occurs and the stop button 502 fails and the test cannot be ended, the emergency stop button 505 is pressed to cut off the power and force the test to end. After the test is ended, the line is removed, and when storing, only the two labor-saving rotating heads 209 need to be loosened to make the host housing 102 and the base 105 close to each other, and the folding lifting mechanism is compressed accordingly, and the base 105 and the host housing 102 are attached together under the magnetic force of the upper magnetic block 301 and the lower magnetic block 302, and then the lock 304 is buckled.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A high-voltage cable partial discharge test device, comprising a monitoring host (101), wherein the monitoring host (101) is provided with a host housing (102) outside, and the monitoring host (101) is provided with a touch screen (501), a stop button (502), a start button (503), a data transmission interface (504), an emergency stop button (505), a control circuit interface (506) and a power supply interface (507), characterized in that: A mainframe cover (103) is provided on the upper part of the mainframe housing (102), a base (105) is provided on the lower part of the mainframe housing (102), and the mainframe housing (102) and the base (105) are connected via a pair of folding and lifting mechanisms.

2. The high-voltage cable partial discharge test device according to claim 1, characterized in that: The folding and lifting mechanism comprises an upper fixed block (201) fixed to the lower surface of the main body housing (102); the upper fixed block (201) is rotatably connected to the upper end of the first fixed support rod (203); the lower end of the first fixed support rod (203) is rotatably connected to the upper end of the second fixed support rod (204); the lower end of the second fixed support rod (204) is rotatably connected to the lower fixed block (207); the lower fixed block (207) is connected to the inner bottom surface of the base (105); the middle part of the first fixed support rod (203) is rotatably connected to the middle part of the first movable support rod (205) via a stud (210); the stud (210) is rotatably connected to the labor-saving rotating rod. The first movable support rod (205) is connected with a head (209), the stud (210) is threadedly connected with a nut (211), the upper end of the first movable support rod (205) is rotatably connected with the upper roller (202), the upper roller (202) is in rolling contact with the lower surface of the main body housing (102), the lower end of the first movable support rod (205) is rotatably connected with the upper end of the second movable support rod (206), the lower end of the second movable support rod (206) is rotatably connected with the lower roller (208), the lower roller (208) is in rolling contact with the inner bottom surface of the base (105), and the middle part of the second movable support rod (206) is rotatably connected with the middle part of the second fixed support rod (204).

3. The high voltage cable partial discharge test device according to claim 2, characterized in that: The contact surface between the middle portion of the first fixed support rod (203) and the middle portion of the first movable support rod (205) is provided with anti-slip patterns.

4. The high-voltage cable partial discharge test device according to claim 1, characterized in that: The host cover (103) is provided with a fixing buckle (303), the outside of the host shell (102) is provided with a locking buckle (304), and the host cover (103) and the host shell (102) are hingedly connected via a hinge (106).

5. The high-voltage cable partial discharge test device according to claim 4, characterized in that: The main unit cover (103) is provided with a handle (104).

6. The high-voltage cable partial discharge test device according to claim 1, characterized in that: Upper magnetic blocks (301) are provided on both sides of the lower end of the exterior of the host housing (102), and lower magnetic blocks (302) are provided on both sides of the upper end of the exterior of the base (105).

7. The high-voltage cable partial discharge test device according to claim 4, characterized in that: A sealing ring (402) is provided on the upper surface of the main housing (102).

8. The high-voltage cable partial discharge test device according to claim 6, characterized in that: The bottom surface of the main housing (102) is provided with an annular groove (401).

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