Discharge counter for lightning arrester

Abstract

The utility model discloses a discharge counter for a lightning arrester, and relates to the technical field of power equipment, the discharge counter comprises a counter main body, the counter main body is provided with a foldable installation support leg, the installation support leg comprises a first support leg plate and a second support leg plate rotatably connected with the first support leg plate, and the second support leg plate is provided with a first clamping plate. Outer wing plates are arranged on the two sides of the first supporting leg plate in the axial direction, the outer wing plates are provided with arc guide grooves used for limiting the rotating direction of the second supporting leg plate, and self-locking mechanisms are arranged in the arc guide grooves and used for locking when the second supporting leg plate and the first supporting leg plate are in a vertical or parallel state. According to the discharge counter, the foldable mounting supporting legs are arranged on the counter body, and the mounting supporting legs can be self-locked when folded to be in the right-angle state and folded to be in the horizontal state, so that the discharge counter can be adaptively mounted according to the direction of the mounting hole of the insulating bracket, and the mounting convenience of the discharge counter is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a discharge counter for lightning arrester. BACKGROUND

[0002] The discharge counter is connected in series at the lower end of the lightning arrester, and is used to record the number of actions of the lightning arrester, so that the engineering personnel can master the law of lightning activity and monitor the service life of the lightning arrester.

[0003] The conventional discharge counter can only be installed in a single mode of horizontal or vertical on the insulating support, and the installation leg of the discharge counter cannot be changed in position and mode according to the fixing hole of the insulating support, and the adaptive installation between the discharge counter and the insulating support cannot be realized. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a discharge counter for lightning arrester, which aims to solve the above technical problems.

[0005] The technical scheme adopted by the present application is as follows:

[0006] A discharge counter for lightning arrester, comprising a counter main body, the counter main body is provided with a foldable installation leg, the installation leg comprises a first leg plate and a second leg plate rotationally connected with the first leg plate, the first leg plate is provided with outer wing plates on both sides in the axial direction, the outer wing plates are provided with circular arc guide grooves for limiting the rotation direction of the second leg plate, a self-locking mechanism is arranged in the circular arc guide grooves, and the self-locking mechanism is used to lock when the second leg plate is in a vertical or parallel state with the first leg plate.

[0007] Optionally, the circular arc guide groove comprises a central circular arc groove body and limiting holes located at both ends of the circular arc groove body, and the inner diameter of the limiting hole is larger than the inner diameter of the circular arc groove body.

[0008] Optionally, the self-locking mechanism comprises a spring and a shaft rod matched with the circular arc groove body, the shaft rod transversely passes through the two circular arc guide grooves and is rotationally connected with the second leg plate, the shaft rod is provided with a first shoulder matched with the limiting hole, the shaft rod can move left and right to make the first shoulder enter or exit the limiting hole, the second leg plate is provided with a second shoulder on the inner side of the shaft rod, the spring is sleeved on the shaft rod, and the two ends of the spring are respectively abutted against the second shoulder and the inner side of the second leg plate.

[0009] Optionally, when the first shoulder is located in the limiting holes on both sides, the first leg plate and the second leg plate are in a vertical or parallel state.

[0010] Optionally, the shaft rod is provided with a first stopper and a second stopper at two ends thereof, and in a natural state, the first stopper is attached to one side of the first leg plate, and the second stopper is spaced from the other side of the first leg plate.

[0011] Optionally, the outer diameter of the stopper is greater than the inner diameter of the limiting hole.

[0012] Optionally, the second leg plate is provided with inner wing plates at two axial sides thereof, and the inner wing plates are provided with shaft pins rotatably connected to the first leg plate and shaft holes for the shaft rod to pass through.

[0013] Optionally, when the first leg plate and the second leg plate are parallel, the second leg plate is folded between the outer wing plates.

[0014] Optionally, the first leg plate and the second leg plate are respectively provided with a first mounting hole and a second mounting hole, and when the first leg plate and the second leg plate are parallel, the first mounting hole and the second mounting hole are coaxially aligned.

[0015] Optionally, the counter body includes an aluminum-magnesium alloy shell and a base, and the aluminum-magnesium alloy shell and the base are sealed by a rubber pad.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] The discharge counter for lightning arresters provided in the application is provided with foldable mounting legs on the counter body, and the mounting legs can be self-locked when folded at a right angle and folded into a horizontal state, so that the discharge counter can be self-adaptively installed according to the direction of the mounting hole of the insulation support, greatly improving the convenience of installation of the discharge counter. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural schematic diagram of the discharge counter for lightning arresters provided in the embodiment of the application in one view;

[0019] Figure 2 A structural schematic diagram of the discharge counter for lightning arresters provided in the embodiment of the application in another view;

[0020] Figure 3 A structural schematic diagram of the mounting leg in one view;

[0021] Figure 4 A structural schematic diagram of the mounting leg in another view;

[0022] Figure 5 A structural schematic diagram of the shaft rod.

[0023] Explanation of reference numerals in the drawings:

[0024] 1 - the main body of the counter, 2 - the mounting leg, 201 - the first leg plate, 202 - the second leg plate, 203 - the outer wing plate, 204 - the inner wing plate, 205 - the shaft pin, 206 - the shaft rod, 207 - the circular arc groove, 208 - the limiting hole, 209 - the first shoulder, 210 - the second shoulder, 211 - the spring, 212 - the first stop handle, 213 - the second stop handle, 214 - the first mounting hole, 215 - the second mounting hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, motion condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, if there is a description of "first", "second" and the like in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0029] Referring to the drawings Figure 1 and Figure 2 As shown in the drawings, the embodiment of the present application provides a discharge counter for lightning arrester, which comprises a counter main body 1 and a foldable mounting leg 2 for mounting the counter on an insulating support of a fixed lightning arrester. The counter main body 1 mainly comprises an aluminum-magnesium alloy shell, a sealing rubber pad, a base, a non-linear resistance sheet, a rectifier, a capacitor, an electromagnetic counter, a protection circuit, etc. The discharge of the lightning arrester is sampled through the non-linear resistance sheet, and is indicated by the electromagnetic counter after processing. The counter is designed as a large panel pointer type, and the counting indication is clear and eye-catching, and is strong against errors. The shell adopts an aluminum-magnesium alloy die casting process and a tempered glass observation port, which overcomes the defects of traditional glass shell similar products that are easy to be damaged. The die-cast aluminum alloy is not easy to be oxidized after plastic spraying, and has high mechanical strength, which overcomes the defects of original similar cast iron shell products that are easy to rust, and also overcomes the defects of similar stainless steel shell products that are easy to be damaged and deformed by external force, and has a long service life.

[0030] As shown in the drawings Figures 3 to 5 The mounting leg 2 comprises a first leg plate 201 and a second leg plate 202. The first leg plate 201 is provided with a first mounting hole 214, and the second leg plate 202 is provided with a second mounting hole 215. When the first leg plate 201 and the second leg plate 202 are folded and closed, the first mounting hole 214 and the second mounting hole 215 are coaxially aligned. The first leg plate 201 is provided with outer wing plates 203 on both sides in the axial direction. The second leg plate 202 is provided with inner wing plates 204 on both sides in the axial direction. The second leg plate 202 is located on the inner side of the first leg plate 201. One end of the first leg plate 201 is integrally formed with the counter main body 1. The second leg plate 202 is rotatably installed at the end of the first leg plate 201 away from the counter main body 1.

[0031] The outer wing plate 203 is provided with a shaft hole. The outer side of the inner wing plate 204 is integrally formed with a shaft pin 205, which is inserted into the shaft hole, so as to realize the rotary connection between the second leg plate 202 and the first leg plate 201. An arc guide groove is further provided on the outer wing plate 203, and the center of the arc guide groove is concentric with the shaft hole. A self-locking mechanism is arranged in the arc guide groove, which is used to lock when the second leg plate 202 and the first leg plate 201 are in a vertical or parallel state.

[0032] Specifically, as shown in the drawings Figures 3 to 5As shown, the circular arc guide groove comprises a central circular arc groove body 207 and limiting holes 208 at both ends of the circular arc groove body 207, and the inner diameter of the limiting hole 208 is larger than the inner diameter of the circular arc groove body 207. The self-locking mechanism comprises a shaft 206 and a spring 211. The shaft 206 is matched with the circular arc groove body 207, that is, the outer diameter of the shaft 206 is adapted to the inner diameter of the circular arc groove body 207. The shaft 206 crosses the two circular arc guide grooves, and the two ends of the shaft 206 extend to the outside of the outer wing plate 203. An axle hole is arranged on the inner wing plate 204, the shaft 206 passes through the axle hole, the axle hole is larger than the shaft 206, and the second leg plate 202 can rotate on the shaft 206. The shaft 206 is provided with a first shoulder 209 matched with the limiting hole 208, that is, the outer diameter of the first shoulder 209 is adapted to the inner diameter of the limiting hole 208. Since the inner diameter of the limiting hole 208 is larger than the inner diameter of the circular arc groove body 207, the first shoulder 209 cannot move along the circular arc groove body 207, and the axle hole on the inner wing plate 204 allows the first shoulder 209 to pass, that is, the shaft 206 can move along the radial direction of the first leg plate 201 and the second leg plate 202. The second shoulder 210 is arranged on the inner side of the second leg plate 202, the spring 211 is arranged on the inner side of the second leg plate 202, and the spring 211 is sleeved on the shaft 206. One end of the spring 211 abuts against the second shoulder 210, and the other end abuts against the inner side of the second leg plate 202.

[0033] At the same time, as shown in Figures 3 to 5 The two ends of the shaft 206 are integrally formed with a first stopper 212 and a second stopper 213. In the natural state, the first stopper 212 is attached to the outer side of the first leg plate 201, and the second stopper is spaced from the other side of the first leg plate 201, and the outer diameter of the stopper is larger than the inner diameter of the limiting hole 208, that is, the stopper cannot pass through the limiting hole 208.

[0034] As can be imagined, the discharge counter for lightning arresters provided by the embodiment of the application, as shown in Figure 3 and Figure 4As shown, the first leg plate 201 and the second leg plate 202 are in a vertical state, and the fixing holes of the insulating support are in a vertical state, and the second leg plate 202 is in a horizontal state, the mounting holes of the second leg plate 202 are aligned with the fixing holes of the insulating support, and the mounting leg 2 is fixed with the insulating support by bolts to complete the installation. When it is necessary to fold the mounting leg 2, the second leg plate 202 is displaced into the first leg plate 201 for vertical installation of the counter, the second handle 213 is pressed by hand, at this time, the shaft 206 moves in the radial direction, the spring 211 is compressed, the first shoulder 209 exits the limiting hole 208, the shaft 206 enters the limiting hole 208, and then the second leg plate 202 is rotated, the shaft 206 moves along the circular arc groove 207 to the limiting hole 208 on the other side, and then the second handle is released, the spring 211 is reset to return the first shoulder 209 to the limiting hole 208 for limiting. In the current state, the second leg plate 202 is attached to the first leg plate 201, and the two are parallel, the first mounting hole 214 and the second mounting hole 215 are opposite, in this state, the fixing holes of the insulating support are in a horizontal state, the first mounting hole 214 and the second mounting hole 215 are aligned with the fixing holes of the insulating support, and the mounting leg 2 can be installed in a vertical state on the insulating support.

[0035] In summary, the discharge counter for a lightning arrester provided by the embodiment of the present application can be self-locked when the mounting leg is folded to a right angle state and folded to a horizontal state, so that the discharge counter can be self-adapted to complete the installation according to the direction of the mounting hole of the insulating support, and the convenience of the discharge counter installation is greatly improved.

[0036] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A discharge counter for a surge arrester, characterized by comprising: The application relates to a counter body provided with foldable mounting legs, the mounting legs comprising a first leg plate and a second leg plate rotationally connected with the first leg plate, the first leg plate being provided with outer wing plates on both axial sides, the outer wing plates being provided with circular arc guide grooves for limiting the rotation direction of the second leg plate, and self-locking mechanisms being arranged in the circular arc guide grooves and used for locking when the second leg plate is perpendicular or parallel to the first leg plate.

2. The discharge counter for a surge arrester according to claim 1, characterized by, The circular arc guide grooves comprise a central circular arc groove body and limiting holes arranged at both ends of the circular arc groove body, and the inner diameter of the limiting holes is larger than that of the circular arc groove body.

3. The discharge counter for a surge arrester according to claim 2, characterized by, The self-locking mechanisms comprise springs and shaft rods matched with the circular arc groove bodies, the shaft rods being arranged across the two circular arc guide grooves and rotationally connected with the second leg plate, the shaft rods being provided with first protruding shoulders matched with the limiting holes, the shaft rods being capable of moving leftward and rightward so that the first protruding shoulders enter or exit the limiting holes, the shaft rods being provided with second protruding shoulders at the inner side of the second leg plate, the springs being sleeved on the shaft rods, and the two ends of the springs being respectively abutted against the second protruding shoulders and the inner side of the second leg plate.

4. The discharge counter for a surge arrester according to claim 3, characterized by When the first protruding shoulders are located in the limiting holes on both sides, the first leg plate and the second leg plate are perpendicular or parallel.

5. The discharge counter for a surge arrester according to claim 3, wherein The two ends of the shaft rods are provided with first and second stop handles, and in the natural state, the first stop handle is attached to one side of the first leg plate, and the second stop handle is spaced from the other side of the first leg plate.

6. The discharge counter for a surge arrester according to claim 5, wherein The outer diameter of the stop handle is larger than the inner diameter of the limiting hole.

7. The discharge counter for a surge arrester according to claim 3, wherein The second leg plate is provided with inner wing plates on both axial sides, the inner wing plates are provided with shaft pins rotationally connected with the first leg plate and shaft holes for the shaft rods to pass through.

8. The discharge counter for a surge arrester according to claim 7, characterized by When the first leg plate and the second leg plate are parallel, the second leg plate is folded between the outer wing plates.

9. The discharge counter for a surge arrester according to claim 1, wherein The first leg plate and the second leg plate are respectively provided with first and second mounting holes, and when the first leg plate and the second leg plate are parallel, the first and second mounting holes are coaxially aligned.

10. The discharge counter for a surge arrester according to claim 1, characterized by, The counter body comprises an aluminum-magnesium alloy shell and a base, and the aluminum-magnesium alloy shell and the base are sealed through rubber pads.

Images