Lightning arrester on-line monitor calibration device

Abstract

The utility model relates to a lightning arrester on-line monitor verification device, comprising a verification box, the inner surface of the verification box is provided with a C-shaped step, the upper end of the C-shaped step is provided with a rubber pad, the upper end of the rubber pad is provided with a bottom plate, the left and right edges of the upper end of the bottom plate are symmetrically provided with rectangular plates, and the rectangular plates are provided with rectangular holes. Two rectangular grooves are formed in the surfaces, close to each other, of the rectangular plates and are symmetrical front and back, arc angles are arranged at the four corners of each rectangular groove, a first magnetic block is arranged in each rectangular groove, and a pull rope is arranged above each rectangular groove; a second magnetic block and a rotating shaft are arranged, and the magnetic pole relation between the second magnetic block and the first magnetic block is changed, so that the distance between a clamping block and a rectangular plate is changed, fixed clamping of the online monitor is achieved, and the monitoring precision is improved; and by arranging a pull rope and a partition plate, the second magnetic block and the first magnetic block can easily generate relative displacement.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration devices, in particular to a calibration device for an online monitoring instrument for a lightning arrester. Background Art

[0002] Lightning arrester is an electrical device used to prevent lightning strikes and is widely used in various power facilities. Lightning arrester detector is a device specially used to detect the state of lightning arrester. It can monitor the operation of lightning arrester and detect lightning arrester failure in time, which provides guarantee for the safe and stable operation of power facilities. However, the existing calibration device is not convenient to fix the tester during the calibration of lightning arrester tester, which affects the accuracy of detection. Therefore, an online monitoring and calibration device for lightning arrester is designed.

[0003] A Chinese utility model patent with patent number ZL202120527856.X discloses a calibration device for a zinc oxide lightning arrester tester, including a calibration box and a protective device, wherein a box door is hinged on one side outer wall of the calibration box, a placement plate is fixedly connected between the inner walls of the calibration box, a slide groove is provided on the inner wall of the placement plate, and the number of the slide grooves is two, and the inner walls of the two slide grooves are slidably connected with a slider, the top outer wall of the slider is fixedly connected with a limit plate, and the top outer wall of the placement plate and the tester are arranged between the two limit plates; by pulling the pull plate The movable rod is pulled outward, thereby driving the limit plate to move to both sides. When the slider contacts the magnetic block, the pulling is stopped, and the tester is placed between the two limit plates. Then the limit plate is moved in the direction close to the tester so that the two limit plates fix the tester. This device facilitates the fixation of the tester, so that it can be better tested and avoids shaking during testing. However, the equipment has the following problems: first, the pull plate is clamped between the inspection box and the protective device, and the space is small. It is not easy for the hand to reach into the space to pull the pull plate, which is not convenient for operation to achieve the clamping effect. Secondly, the equipment has a complex structure and high cost. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and to solve the technical problem that during the calibration of the arrester tester, it is inconvenient to fix the tester, thereby affecting the accuracy of the detection, by providing a second magnetic block and a rotating shaft, a tension rope and a partition plate, and an elastic member.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lightning arrester online monitoring instrument calibration device comprises a calibration box, the inner surface of the calibration box is provided with a C-shaped step, the upper end of the C-shaped step is provided with a rubber pad, the upper end of the rubber pad is provided with a bottom plate, rectangular plates are symmetrically provided at the left and right edge positions of the upper end of the bottom plate, two rectangular grooves are provided on the surfaces of the rectangular plates close to each other, and are symmetrical front to back, arc corners are provided at the four corners of the rectangular groove, a No. 1 magnetic block is provided in the groove of the rectangular groove, and a tension rope is provided above the rectangular groove.

[0007] As a preference, the tension rope is located on the surface of the rectangular plate, and the lower end of the tension rope is fixedly connected to a partition plate, and the partition plate is an inverted triangle plastic plate.

[0008] Preferably, two elastic members are provided between the rectangular grooves and are symmetrical front to back, and one end of the elastic member away from the rectangular plate is fixedly connected to the support rod.

[0009] As a preference, one end of the support rod away from the elastic member is fixedly connected to a clamping block, and one end of the clamping block away from the support rod is provided with a buffer sleeve, and the buffer sleeve is a rubber sleeve.

[0010] As a preferred embodiment, an online monitor is provided between the clamping blocks, and anti-slip teeth are evenly distributed on one end of the buffer sleeve close to the online monitor.

[0011] Preferably, the end of the clamping block away from the buffer sleeve is symmetrically provided with a mounting groove, the upper end of the mounting groove is provided with a groove, and a No. 2 magnetic block is provided in the mounting groove, the inner surface of the No. 2 magnetic block is sleeved on the rotating shaft, and the left and right ends of the rotating shaft are fixedly connected to the surface of the mounting groove.

[0012] Beneficial effects of the utility model:

[0013] (1) In the utility model, a second magnetic block and a rotating shaft are provided, and a hand is inserted into the groove to rotate the second magnetic block. By changing the outward magnetic pole of the second magnetic block, the magnetic pole relationship between the second magnetic block and the first magnetic block is changed. When the magnetic poles of the two magnetic blocks approaching each other are the same, the clamping block moves away from the rectangular plate under the action of the repulsive force, thereby achieving a clamping effect on the online monitor. When the magnetic poles of the two magnetic blocks approaching each other are opposite, the clamping block approaches the rectangular plate under the action of the attractive force, thereby losing the clamping effect on the online monitor.

[0014] (2) In the utility model, a pulling rope and a partition plate are provided. The pulling rope can lift the partition plate when no external force is applied. Since the No. 2 magnetic block and the No. 1 magnetic block are not easy to separate under the state of mutual attraction, the pulling rope needs to be pulled to insert the partition plate between the two to reduce the mutual attraction between the two, so that the No. 2 magnetic block and the No. 1 magnetic block can easily undergo relative displacement.

[0015] (3) In the utility model, an elastic member is provided, which may be a spring. When the second magnetic block and the first magnetic block attract each other, the elastic member is compressed and drives the clamping block to move closer to the rectangular plate. When the second magnetic block and the first magnetic block repel each other, the elastic member stretches to speed up the clamping speed of the clamping block.

[0016] In summary, the device has the advantages of simple structure and stable clamping, and is particularly suitable for the field of calibration device technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural diagram of the arrester online monitoring instrument calibration device.

[0019] Figure 2 It is a schematic diagram of the structure of the rectangular plate part and the clamping block part.

[0020] Figure 3 This is a schematic diagram of the structure of point A of the lightning arrester online monitoring instrument calibration device.

[0021] Figure 4 It is a schematic diagram of the structure at B of the rectangular plate part and the clamping block part.

[0022] Figure 5 This is a schematic diagram of the explosion structure of the No. 2 magnetic block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] like Figures 1 to 5As shown, the utility model provides a lightning arrester online monitor calibration device, including a calibration box 1, which provides a placement space and anti-collision protection for an online monitor 9. The inner surface of the calibration box 1 is provided with a C-shaped step 2, which is used to limit the external installation of a bottom plate 4. The upper end of the C-shaped step 2 is provided with a rubber pad 3, which is elastic. When the bottom plate 4 takes the monitoring instrument, vibration will be generated, affecting the monitoring accuracy, and the rubber pad 3 can offset these vibrations through its own extrusion deformation to maintain the stability of the bottom plate 4. The upper end of the rubber pad 3 is provided with a bottom plate 4, which is used to place the online monitor 9 and provide an installation position for a rectangular plate 5, a clamping block 8, etc. Rectangular plates 5 are symmetrically provided at the left and right edge positions of the upper end of the bottom plate 4. The rectangular plates 5 are fixedly installed on the bottom plate 4 to provide an installation position for the rectangular groove 51. Two rectangular grooves 51 are provided on the surfaces of the rectangular plates 5 close to each other, and are symmetrical front to back, for installing the No. 1 magnetic block 53. Arc corners 52 are provided at the four corners of the rectangular groove 51 to provide tool activity space for the later replacement of the No. 1 magnetic block 53. The No. 1 magnetic block 53 can be removed by using tools, and the No. 1 magnetic block 53 is provided in the groove of the rectangular groove 51, which is used in combination with the No. 2 magnetic block 84, and a pulling rope 6 is provided above the rectangular groove 51, which has elastic force to increase the activity range of the partition plate 61.

[0026] Further, if Figure 4 As shown, the pulling rope 6 is located on the surface of the rectangular plate 5, and the lower end of the pulling rope 6 is fixedly connected to the partition plate 61. The partition plate 61 is an inverted triangular plastic plate. The pulling rope 6 lifts the partition plate 61 when there is no external force. Because the second magnetic block 84 and the first magnetic block 53 are not easy to separate under the state of mutual attraction, the pulling rope 6 needs to be pulled to insert the partition plate 61 between the two to weaken the mutual attraction, so that the second magnetic block and the first magnetic block can easily undergo relative displacement.

[0027] Further, if Figure 2 As shown, two elastic members 7 are provided between the rectangular grooves 51 and are symmetrical front to back. One end of the elastic member 7 away from the rectangular plate 5 is fixedly connected to the support rod 71. The elastic member 7 can be a spring. The elastic member 7 is extended and retracted to drive the support rod 71 and the clamping block 8 to move, so that the rectangular plate 5 and the clamping block 8 cannot always be pressed against each other, thereby providing hand space for flipping the second magnetic block 84.

[0028] Furthermore, one end of the support rod 71 away from the elastic member 7 is fixedly connected to the clamping block 8, and one end of the clamping block 8 away from the support rod 71 is provided with a buffer sleeve 81. The buffer sleeve 81 is a rubber sleeve. The deformation ability of the buffer sleeve 81 itself is utilized to reduce the impact force on the online monitor 9 when the clamping block 8 is clamped, thereby protecting the outer shell of the online monitor 9 from damage.

[0029] Further, if Figure 2As shown, an online monitor 9 is provided between the clamping blocks 8. The online monitor is used for monitoring the operation of the arrester and timely discovering arrester failures, which provides a guarantee for the safe and stable operation of the power facilities. The anti-slip teeth are evenly distributed on one end of the buffer sleeve 81 close to the online monitor 9 to reduce the contact area between the two and reduce the possibility of clamping marks on the surface of the online monitor 9.

[0030] Further, if Figure 5 As shown, the end of the clamping block 8 away from the buffer sleeve 81 is symmetrically provided with a mounting groove 82 for mounting the second magnetic block 84. The upper end of the mounting groove 82 is provided with a groove 83, which is convenient for hand operation to flip the magnetic pole of the second magnetic block 84, and the second magnetic block 84 is arranged in the groove of the mounting groove 82. The inner surface of the second magnetic block 84 is sleeved with a rotating shaft 85, and the left and right ends of the rotating shaft 85 are fixedly connected to the surface of the mounting groove 82. The hand is inserted into the groove 83 to rotate the second magnetic block 84. By changing the outward magnetic pole of the second magnetic block 84, the magnetic pole relationship between the second magnetic block 84 and the first magnetic block 53 is changed. When the magnetic poles of the two are close to each other are the same, the clamping block 8 is away from the rectangular plate 5 under the action of the repulsive force, and the clamping effect on the online monitor 9 is realized. When the magnetic poles of the two are close to each other are opposite, the clamping block 8 is close to the rectangular plate 5 under the action of the attractive force, and the clamping effect on the online monitor 9 is lost.

[0031] Working process: first, the magnetic poles of the second magnetic block 84 and the first magnetic block 53 are opposite and attract each other, so that the distance between the clamping block 8 and the rectangular plate 5 is the shortest, and the elastic member 7 is in a compressed state; further, the online monitor 9 is placed on the bottom plate 4, and then the hand is inserted into the groove 83 to rotate the second magnetic block 84, so that the magnetic poles of the second magnetic block 84 and the first magnetic block 53 are the same and repel each other; further, under the action of the repulsive force, the elastic member 7 is reset and extended, so that the clamping block 8 gradually moves away from the rectangular plate 5, and the online monitor 9 is clamped and fixed in the center; further, when it is necessary to cancel the clamping of the online monitor 9, it is only necessary to flip the second magnetic block 84 by hand, so that the magnetic poles of the second magnetic block 84 and the first magnetic block 53 are opposite and start to attract each other, so that the elastic member 7 can drive the clamping block 8 to gradually move closer to the rectangular plate 5.

[0032] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0033] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0034] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lightning arrester online monitoring instrument calibration device, characterized in that: The invention comprises a test box (1), wherein the inner surface of the test box (1) is provided with a C-shaped step (2), the upper end of the C-shaped step (2) is provided with a rubber pad (3), the upper end of the rubber pad (3) is provided with a bottom plate (4), the left and right edges of the upper end of the bottom plate (4) are symmetrically provided with rectangular plates (5), the surfaces of the rectangular plates (5) close to each other are provided with two rectangular grooves (51) symmetrically front and back, the four corners of the rectangular groove (51) are provided with arc corners (52), a No. 1 magnetic block (53) is provided in the groove of the rectangular groove (51), and a tension rope (6) is provided above the rectangular groove (51).

2. The arrester online monitoring instrument calibration device according to claim 1, characterized in that: The pulling rope (6) is located on the surface of the rectangular plate (5), and the lower end of the pulling rope (6) is fixedly connected to a partition plate (61), and the partition plate (61) is an inverted triangle plastic plate.

3. The arrester online monitoring instrument calibration device according to claim 1, characterized in that: Two elastic members (7) are arranged between the rectangular grooves (51) and are symmetrical front to back. One end of the elastic member (7) away from the rectangular plate (5) is fixedly connected to a support rod (71).

4. The arrester online monitoring instrument calibration device according to claim 3 is characterized in that: One end of the support rod (71) away from the elastic member (7) is fixedly connected to the clamping block (8), and one end of the clamping block (8) away from the support rod (71) is provided with a buffer sleeve (81), and the buffer sleeve (81) is a rubber sleeve.

5. The arrester online monitoring instrument calibration device according to claim 4, characterized in that: An online monitor (9) is provided between the clamping blocks (8), and anti-slip teeth are evenly distributed on one end of the buffer sleeve (81) close to the online monitor (9).

6. The arrester online monitoring instrument calibration device according to claim 4, characterized in that: The end of the clamping block (8) away from the buffer sleeve (81) is symmetrically provided with a mounting groove (82) in front and back, the upper end of the mounting groove (82) is provided with a groove (83), and a second magnetic block (84) is provided in the groove of the mounting groove (82), the inner surface of the second magnetic block (84) is sleeved with a rotating shaft (85), and the left and right ends of the rotating shaft (85) are fixedly connected to the surface of the mounting groove (82).

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