Lightning arrester counter testing device

Abstract

The invention relates to the technical field of power station maintenance, in particular to a lightning arrester counter testing device which comprises a connecting clamp component and a testing component connected with the connecting clamp component through an electric wire, a testing circuit is integrated in the testing component, and after the connecting clamp component is connected with a terminal of a lightning arrester counter to be tested, the testing circuit is connected with the connecting clamp component. The testing component performs discharge testing on the lightning arrester counter, the connecting clamp component comprises a wire cutting structure, and when a wiring terminal of the lightning arrester counter is rusted or an original cable head is damaged and oxidized seriously, and a clamp cannot be lapped reliably, the wire cutting structure can be used for cutting the tail end of a testing wire, so that the testing wire can be cut off. And the test component comprises a tester, the surface of the tester is provided with a display screen, the side surface of the display screen is provided with a test button, the device is provided with a wire trimming structure for the corrosion condition of the terminal, and a tester can conveniently and temporarily process a detection wire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power station maintenance, in particular to a lightning arrester counter testing device. BACKGROUND

[0002] The lightning arrester counter is a monitoring device for recording the number of actions of the lightning arrester, and the core function is to determine whether the lightning arrester is working normally, whether it needs to be maintained or replaced by counting the number of actions. The lightning arrester can act quickly to discharge overvoltage when the power system has overvoltage, so as to achieve the purpose of protecting the power system. At present, many lightning arresters are installed in each voltage level substation, and the monitoring of the number of actions of the lightning arrester cannot be separated from the lightning arrester counter. According to the power equipment preventive test regulation (Q / CSG112702-2011), the counter needs to be tested 3-5 times before each rainy season or when it is suspected to have defects, and should all be normal action, and the counter should be reset during the annual preventive test. In addition, the counter needs to be strictly checked repeatedly during the production process or acceptance process of the lightning arrester.

[0003] When checking the lightning arrester counter on site, the handheld lightning arrester discharge counter checker is often connected with the terminal post of the lightning arrester counter through the connecting clamp, and then multiple discharge tests are performed. However, since the lightning arrester is generally installed in the outdoor equipment area of the substation, the transmission line tower and other open environments, the terminal of the lightning arrester counter often rusts or the original cable head is damaged and severely oxidized, which causes the clamp to be unable to be reliably lapped. At this time, the damaged part at the end of the cable head needs to be trimmed to expose the new metal conductor to ensure good contact. If a special wire stripper is not carried, it is difficult to perform the test. SUMMARY

[0004] The purpose of the present application is to provide a lightning arrester counter testing device which can cope with the situation that the terminal of the lightning arrester counter is severely rusted and cannot be connected.

[0005] The above technical problem is solved by the following technical scheme: the present application proposes the following technical scheme: a lightning arrester counter testing device, comprising a connecting clamp component and a testing component connected with the connecting clamp component through an electric wire, The connecting clamp component comprises a wire cutting structure. The testing component comprises a testing instrument, and a display screen is arranged on the surface of the testing instrument. A testing button is arranged on the side of the display screen.

[0006] As a preferred scheme of the lightning arrester counter test device, the connecting clamp member comprises a tiger mouth handle, a pressing handle is arranged on the side of the tiger mouth handle, a middle connecting rod is arranged on the side of the pressing handle, a clamp opening is arranged at one end of the pressing handle, a first elastic member is arranged on the side of the middle connecting rod, and two ends of the first elastic member are connected with the tiger mouth handle and the pressing handle respectively.

[0007] As a preferred scheme of the lightning arrester counter test device, an accommodating frame is arranged on the outer wall of the pressing handle, and the wire cutting structure is arranged in the accommodating frame.

[0008] As a preferred scheme of the lightning arrester counter test device, the wire cutting structure comprises an outer sleeve arranged in the accommodating frame, a sliding column is arranged on the side of the outer sleeve, a connecting groove is arranged on the side of the accommodating frame, and the sliding column is arranged in the connecting groove.

[0009] As a preferred scheme of the lightning arrester counter test device, a fixing cylinder is arranged above the outer sleeve, the fixing cylinder is sleeved in the outer sleeve, the top of the fixing cylinder is connected with the tiger mouth handle, a wire inlet is arranged at the connection position of the tiger mouth handle and the fixing cylinder, and a sliding cylinder is sleeved in the fixing cylinder.

[0010] As a preferred scheme of the lightning arrester counter test device, a sliding groove is arranged on the outer wall of the sliding cylinder, a top column is arranged on the inner wall of the fixing cylinder, the top column is arranged in the sliding groove, a cutter structure is arranged below the sliding groove, a clamping block is arranged below the cutter, and a bottom clamping structure is arranged below the clamping block.

[0011] As a preferred scheme of the lightning arrester counter test device, the sliding groove comprises a top vertical groove, an inclined groove is arranged below the top vertical groove, and a bottom vertical groove is arranged below the inclined groove.

[0012] As a preferred scheme of the lightning arrester counter test device, the cutter structure comprises a sliding block arranged on the inner wall of the sliding cylinder, a pressing curved surface is arranged on the side of the sliding block, a cutter surface is arranged on the side of the sliding block close to the axis of the sliding cylinder, a connecting plate is arranged below the sliding block, a second elastic member is arranged on the side of the connecting plate, an accommodating bin is arranged on the outer wall of the sliding cylinder, the second elastic member is arranged in the accommodating bin, and a limiting plate is arranged on the side of the second elastic member.

[0013] As a preferred scheme of the lightning arrester counter test device, the bottom clamping structure comprises an L-shaped plate arranged at the bottom of the outer sleeve, a pressing inclined surface is arranged on the top of the L-shaped plate, a third elastic member is arranged on the side of the L-shaped plate, a side groove is arranged on the side of the outer sleeve, and the L-shaped plate is arranged in the side groove.

[0014] As a preferred scheme of the lightning arrester counter testing device of the application: the inside of the testing member is further integrated with a testing circuit, the testing circuit comprising a jog switch, a power supply fuse, a rectifier bridge, a relay, a protection resistor and a capacitor; The AC power input is connected in series with the jog switch, and then connected to the rectifier bridge, the DC power output by the rectifier bridge is connected in series with the relay coil to form a control loop, the protection resistor is connected in series with the normally open contact of the relay, and then connected in series with the lightning arrester counter and the capacitor to form a complete testing loop, and the power supply fuse is connected in series on the control loop.

[0015] The application has the advantages that: the connecting clamp member of the device is convenient for connecting the terminals of the tester and the lightning arrester counter, and the wire cutting structure is provided for the case that the terminals are rusted, which is convenient for the tester to temporarily process the detection wire. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments of the application will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the application, and not limit the application. Among them: Figure 1 It is the overall structure schematic diagram in the application.

[0017] Figure 2 It is the structure schematic diagram of the connecting clamp member in the application.

[0018] Figure 3 It is the structure schematic diagram of the wire cutting structure in the application.

[0019] Figure 4 It is the structure schematic diagram of the wire inlet in the application.

[0020] Figure 5 It is the structure schematic diagram of the accommodating frame in the application.

[0021] Figure 6 It is the structure schematic diagram of the sliding cylinder in the application.

[0022] Figure 7 It is the structure schematic diagram of the cutter structure in the application.

[0023] Figure 8 It is the structure schematic diagram of the bottom card structure in the application.

[0024] Figure 9 It is the structure schematic diagram of the testing circuit in the application.

[0025] Wherein: 1, connecting pliers component; 2, test component; 17, containing frame; 11, volar interphalangeal grip; 12, press knob; 13, middle connecting rod; 14, jaw; 15, first elastic member; 16, line cutting structure; 161, outer sleeve; 163, sliding column; 18, connecting groove; 19, wire inlet; 164, sliding cylinder; 165, sliding groove; 166, cutter structure; 167, clamping block; 168, bottom clamping structure; 1641, containing bin; 1661, sliding block; 1662, pressing curved surface; 1663, knife surface; 1664, connecting plate; 1665, second elastic member; 1666, limiting plate; 1611, side groove; 1681, L-shaped plate; 1682, pressing inclined surface; 1683, third elastic member; 241, power fuse; 242, jog switch; 243, rectifier bridge; 244, relay; 245, protection resistor; 246, capacitor; 21, tester; 22, display screen; 23, test button; 162, fixed cylinder; 1621, top column; 1651, top vertical groove; 1652, inclined groove; 1653, bottom vertical groove; 24, test circuit. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with specific embodiments and drawings.

[0027] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions about the present application, but the terms can be changed according to the intention of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as simple names, but based on the meaning of the terms and the overall description of the present application.

[0028] Embodiment 1, Reference Figures 1-9 The present embodiment provides a lightning arrester counter testing device, which comprises a connecting pliers component 1 and a test component 2 connected with the connecting pliers component 1 through a wire, and a test circuit 24 integrated inside the test component 2. After the connecting pliers component 1 is connected with the terminal of the lightning arrester counter to be tested, the test component 2 performs discharge test on the lightning arrester counter.

[0029] The connecting pliers component 1 comprises a line cutting structure 16. When the wiring terminal of the lightning arrester counter is corroded or the original cable terminal is damaged and oxidized seriously, so that the clamp cannot be reliably overlapped, the end of the test wire can be trimmed by using the line cutting structure 16 to expose the new metal conductor for connection with the conductor on the terminal.

[0030] The testing member 2 comprises a testing instrument 21, the surface of the testing instrument 21 is provided with a display screen 22, the side of the display screen 22 is provided with a testing button 23, the display screen 22 can display testing results, and the testing personnel can read records conveniently.

[0031] Further, the connecting forceps member 1 comprises a thumb grip 11, the side of the thumb grip 11 is provided with a pressing handle 12, the side of the pressing handle 12 is provided with a middle connecting rod 13, as shown in the figure, Figure 2 the middle connecting rod 13 is provided with a forceps opening 14, one end of the thumb grip 11 is also provided with the forceps opening 14, the side of the middle connecting rod 13 is provided with a first elastic member 15, the two ends of the first elastic member 15 are connected with the thumb grip 11 and the pressing handle 12 respectively, the first elastic member 15 can be a spring, and the first elastic member 15 is in a compressed state.

[0032] In use, the tester holds the connecting forceps member 1, the thumb is wrapped around the thumb grip 11, the thumb grip 11 faces the thumb of the tester's hand, the rest of the fingers are placed on the pressing handle 12, the pressing plate is pressed towards the thumb part, the forceps opening 14 is opened, then the forceps opening 14 is sleeved on the terminal of the counter, the hand is relaxed, the terminal is clamped, the connection is completed, and then the testing can be performed.

[0033] Embodiment 2, referring to Figures 1-9 , the second embodiment of the present application is different from the previous embodiment, as shown in the figure, Figure 2 the outer wall of the pressing handle 12 is provided with a containing frame 17, and the wire cutting structure 16 is arranged in the containing frame 17.

[0034] Further, as shown in the figure, Figure 3 the wire cutting structure 16 comprises an outer sleeve 161 arranged in the containing frame 17, the side of the outer sleeve 161 is provided with a sliding column 163, the sliding column 163 is fixedly connected with the outer sleeve 161, the sliding column 163 is arranged on both sides of the outer sleeve 161, the side of the containing frame 17 is provided with a connecting groove 18, the sliding column 163 is arranged in the connecting groove 18, and the sliding column 163 can slide or even rotate in the connecting groove 18.

[0035] Further, the upper portion of the outer sleeve 161 is provided with a fixing sleeve 162, the fixing sleeve 162 is sleeved in the outer sleeve 161, the top of the fixing sleeve 162 is connected with the thumb grip 11, the fixing sleeve 162 is fixedly connected with the thumb grip 11, and the thumb grip 11 is provided with a wire inlet 19 at the connection position of the thumb grip 11 and the fixing sleeve 162, as shown in the figure, Figure 4 the wire inlet 19 is communicated with the inside of the fixing sleeve 162, the wire can be stretched into the inside of the fixing sleeve 162 from the wire inlet 19, the fixing sleeve 162 is sleeved with a sliding sleeve 164, and the fixing sleeve 162 and the sliding sleeve 164 can slide relative to each other.

[0036] Further, the outer wall of the sliding cylinder 164 is provided with a sliding groove 165, the inner wall of the fixed cylinder 162 is provided with a top post 1621, the top post 1621 is arranged inside the sliding groove 165, the top post 1621 can slide inside the sliding groove 165, the lower part of the sliding groove 165 is provided with a cutter structure 166, the cutter structure 166 can cut the outer skin of the wire inside the sliding cylinder 164, which is conducive to the falling of the outer skin, the lower part of the cutter is provided with a clamping block 167, the clamping block 167 can clamp the cut outer skin of the wire, the lower part of the clamping block 167 is provided with a bottom clamping structure 168, the bottom clamping structure 168 is limited at the bottom of the sliding cylinder 164, the top of the sliding cylinder 164 is provided with a fourth elastic piece, the top of the sliding cylinder 164 is fixedly connected with the fourth elastic piece, the top of the fourth elastic piece is fixedly connected with the fixed cylinder 162, the fourth elastic piece can be a spring, and the fourth elastic piece is in a compressed state.

[0037] Further, the cutter structure 166 includes a sliding block 1661 arranged on the inner wall of the sliding cylinder 164, the side surface of the sliding block 1661 is provided with a pressing arc surface 1662, the side of the sliding block 1661 close to the axis of the sliding cylinder 164 is provided with a cutter surface 1663, the lower part of the sliding block 1661 is provided with a connecting plate 1664, the side surface of the connecting plate 1664 is provided with a second elastic piece 1665, the outer wall of the sliding cylinder 164 is provided with a containing bin 1641, the second elastic piece 1665 is arranged in the containing bin 1641, the side surface of the second elastic piece 1665 is provided with a limiting plate 1666, such as Figure 6 、 Figure 7As shown, when the test line needs to be trimmed, the test line to be trimmed is extended from the inlet 19, and the test line is extended from the bottom of the sliding cylinder 164. At this time, the pressing handle 12 is pressed, and the pressing handle 12 slides the fixed cylinder 162 towards the sliding cylinder 164 (the view angle is downward movement, and the subsequent view angle is downward movement). The fourth elastic member is continuously compressed. The bottom of the fixed cylinder 162 is processed with a slope. When the fixed cylinder 162 moves downward, the slope presses the pressing arc surface 1662, so that the sliding block 1661 is pressed to move towards the inside of the sliding cylinder 164. The knife surface 1663 abuts against the outer skin of the test line. At this time, the top post 1621 on the outer wall of the fixed cylinder 162 moves to the connection between the top longitudinal groove 1651 and the inclined groove 1652 in the sliding groove 165. Then, the fixed cylinder 162 continues to slide downward. The top post 1621 moves in the inclined groove 1652. Under the action of the inclined groove 1652, the top post 1621 rotates the sliding cylinder 164. Thus, the sliding cylinder 164 rotates the cutting knife structure 166 to cut the outer skin of the test line. After cutting, the top post 1621 moves to the bottom of the bottom longitudinal groove 1653 in the sliding groove 165. The fixed cylinder 162 continues to move downward, and the fixed cylinder 162 presses the clamping block 167. The connection structure between the clamping block 167 and the outer wall of the sliding cylinder 164 is the same as the cutting knife structure 166. The clamping block 167 is pressed to move along the axis of the sliding cylinder 164 and contact the outer skin of the test line. The clamping block 167 clamps the cut outer skin of the test line. At this time, the top post 1621 moves to the bottom of the bottom longitudinal groove 1653. The fixed cylinder 162 continues to move downward to drive the sliding cylinder 164 to move downward.

[0038] Further, the bottom clamping structure 168 includes an L-shaped plate 1681 arranged at the bottom of the outer sleeve 161. The top of the L-shaped plate 1681 is provided with a pressing slope 1682. The side of the L-shaped plate 1681 is provided with a third elastic member 1683, which can be a spring. The third elastic member 1683 is in a compressed state. The side of the outer sleeve 161 is provided with a side groove 1611. The L-shaped plate 1681 is arranged in the side groove 1611, as shown. Figure 8 As shown, the bottom of the L-shaped plate 1681 supports the sliding cylinder 164 so that it cannot move downward. In the state that the pressing handle 12 is relatively far away from the tiger mouth handle 11, the L-shaped plate 1681 is in close contact with the sliding cylinder 164. When the top post 1621 moves to the bottom of the bottom longitudinal groove 1653, the bottom of the fixed cylinder 162 presses the pressing slope 1682 at the top of the L-shaped plate 1681, so that the L-shaped plate 1681 moves away from the sliding cylinder 164. Thus, the bottom of the L-shaped plate 1681 no longer supports the sliding cylinder 164. The fixed cylinder 162 slides downward with the sliding cylinder 164, pulls down the cut outer skin of the test line, and completes the peeling of the outer skin of the test line.

[0039] Use process: when the terminal of the lightning arrester counter is rusted, or the original cable head is damaged and oxidized seriously, causing the clip to be unable to be reliably overlapped, the end of the test wire needs to be trimmed using the wire trimming structure 16 to expose the new metal conductor for connection with the conductor on the terminal. The test wire is stretched from the wire inlet 19 and stretched out from the bottom of the sliding cylinder 164. At this time, the pressing handle 12 is pressed, and the pressing handle 12 will slide the fixed cylinder 162 towards the sliding cylinder 164. The bottom of the fixed cylinder 162 will press the pressing arc surface 1662, so that the sliding block 1661 will move towards the inside of the sliding cylinder 164. The knife surface 1663 abuts against the outer skin of the test wire. The fixed cylinder 162 continues to slide downwards, and the sliding cylinder 164 rotates the cutting knife structure 166 to cut the outer skin of the test wire. The fixed cylinder 162 continues to slide downwards, and the clamping block 167 clamps the cut outer skin. The fixed cylinder 162 continues to slide downwards, and the bottom will press the pressing inclined surface 1682 on the top of the L-shaped plate 1681. The L-shaped plate 1681 moves away from the outer wall of the sliding cylinder 164, and the fixed cylinder 162 will slide the sliding cylinder 164 downwards to pull down the cut outer skin of the test wire. The peeling of the outer skin of the test wire is completed. The device can directly peel the test wire using the connecting pliers component 1, avoiding the situation that the tester needs to return from outdoor detection to indoor to take tools.

[0040] Embodiment 3, refer to Figures 1-9 The third embodiment of the present application is different from the previous embodiment in that the test component 2 further integrates a test circuit 24. The test circuit 24 includes a jog switch 242, a power supply fuse 241, a rectifier bridge 243, a relay 244, a protection resistor 245, and a capacitor 246. The alternating current is first connected in series with the jog switch 242, and then connected to the rectifier bridge 243. The direct current output by the rectifier bridge 243 is connected in series with the coil of the relay 244, forming a control loop. The protection resistor 245 is connected in series with the normally open contact of the relay 244, and then connected in series with the lightning arrester counter and the capacitor 246, forming a complete test loop. The power supply fuse 241 is connected in series in the control loop.

[0041] Use process: after connecting the test instrument 21 and the counter using the connecting pliers component 1, connect the 220V AC plug of the test device to the power socket on site, press the jog switch 242, the coil of the relay 244 is powered on, the normally open contact is attracted, and the test loop is turned on. The alternating current is converted to direct current by the rectifier bridge 243, and charges the energy storage capacitor 246 through the protection resistor 245. Release the jog switch 242, the coil of the relay 244 loses power, the normally open contact is disconnected, and the normally closed contact is closed. The energy storage capacitor 246 releases pulse current to the lightning arrester counter through the test loop, triggers the counter to act, and completes 1 action time test. The test result will be displayed on the display screen 22, and the tester will record it. Repeat the test action multiple times to complete the test.

[0042] It should finally be noted that the methods and devices described in detail above are merely embodiments, which the person skilled in the art can modify in different ways, without departing from the scope of the present application.

Claims

1. A surge arrester counter testing device, characterized in that: include, A connecting clamp component (1) and a test component (2) connected to the connecting clamp component (1) by wires. The connecting clamp component (1) includes a wire-cutting structure (16); The test component (2) includes a tester (21), the surface of which is provided with a display screen (22), and the side of the display screen (22) is provided with a test button (23).

2. The surge arrester counter testing device as described in claim 1, characterized in that: The connecting clamp component (1) includes a thumb grip (11), a pressing handle (12) is provided on the side of the thumb grip (11), a middle connecting rod (13) is provided on the side of the pressing handle (12), a jaw (14) is provided at one end of the pressing handle (12), and a first elastic element (15) is provided on the side of the middle connecting rod (13). The two ends of the first elastic element (15) are respectively connected to the thumb grip (11) and the pressing handle (12).

3. The surge arrester counter testing device as described in claim 2, characterized in that: The outer wall of the pressing handle (12) is provided with a receiving frame (17), and the wire cutting structure (16) is disposed inside the receiving frame (17).

4. The surge arrester counter testing device as described in claim 3, characterized in that: The wire-cutting structure (16) includes an outer sleeve (161) disposed inside the receiving frame (17). A sliding post (163) is provided on the side of the outer sleeve (161). A connecting groove (18) is opened on the side of the receiving frame (17), and the sliding post (163) is disposed in the connecting groove (18).

5. The surge arrester counter testing device as described in claim 4, characterized in that: A fixed cylinder (162) is provided above the outer sleeve (161). The fixed cylinder (162) is sleeved inside the outer sleeve (161). The top of the fixed cylinder (162) is connected to the tiger's mouth grip (11). A wire inlet (19) is provided at the connection between the tiger's mouth grip (11) and the fixed cylinder (162). A sliding cylinder (164) is sleeved inside the fixed cylinder (162).

6. The surge arrester counter testing device as described in claim 5, characterized in that: The outer wall of the sliding cylinder (164) is provided with a sliding groove (165), the inner wall of the fixed cylinder (162) is provided with a top column (1621), the top column (1621) is located inside the sliding groove (165), a cutter structure (166) is provided below the sliding groove (165), a clamping block (167) is provided below the cutter, and a bottom clamping structure (168) is provided below the clamping block (167).

7. The surge arrester counter testing device as described in claim 6, characterized in that: The chute (165) includes a top longitudinal chute (1651), an inclined chute (1652) is provided below the top longitudinal chute (1651), and a bottom longitudinal chute (1653) is provided below the inclined chute (1652).

8. The surge arrester counter testing device as described in claim 7, characterized in that: The cutting structure (166) includes a slider (1661) disposed on the inner wall of the slide cylinder (164). The slider (1661) has a pressing arc surface (1662) on its side. The slider (1661) has a blade surface (1663) on its side near the axis of the slide cylinder (164). A connecting plate (1664) is disposed below the slider (1661). A second elastic member (1665) is disposed on the side of the connecting plate (1664). A receiving chamber (1641) is disposed on the outer wall of the slide cylinder (164). The second elastic member (1665) is disposed in the receiving chamber (1641). A limit plate (1666) is disposed on the side of the second elastic member (1665).

9. The surge arrester counter testing device as described in claim 8, characterized in that: The bottom card structure (168) includes an L-shaped plate (1681) disposed at the bottom of the outer sleeve (161), the top of the L-shaped plate (1681) is provided with a pressing slope (1682), the side of the L-shaped plate (1681) is provided with a third elastic element (1683), the side of the outer sleeve (161) is provided with a side groove (1611), and the L-shaped plate (1681) is disposed in the side groove (1611).

10. The surge arrester counter testing device as described in claim 9, characterized in that: The test component (2) also integrates a test circuit (24), which includes a jog switch (242), a power fuse (241), a rectifier bridge (243), a relay (244), a protective resistor (245), and a capacitor (246). The AC input is first connected in series with the jog switch (242), and then connected to the rectifier bridge (243). The DC output of the rectifier bridge (243) is connected in series with the coil of the relay (244) to form a control circuit. The protection resistor (245) is connected in series with the normally open contact of the relay (244), and then connected in series with the surge arrester counter and the capacitor (246) to form a complete test circuit. The power supply fuse (241) is connected in series in the control circuit.

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