CN218213097U

CN218213097U - Arrester high-voltage test supports fixing device

Info

Publication number: CN218213097U
Application number: CN202221879847.8U
Authority: CN
Inventors: 钱奇亮; 赵怡晴; 王若南; 赵志军; 马纪; 封亚东; 郭芮; 刘曼琳; 张超; 方雷; 焦亚琴; 胡昱
Original assignee: Xining Power Supply Co Of State Grid Qinghai Electric Power Co; State Grid Corp of China SGCC; State Grid Qinghai Electric Power Co Ltd
Current assignee: Xining Power Supply Co Of State Grid Qinghai Electric Power Co; State Grid Corp of China SGCC; State Grid Qinghai Electric Power Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-01-03
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a fixing device is supported in arrester high-voltage testing relates to electric power test technical field, and the device includes the support frame and sets up in the tight fixed unit of clamp of support frame upper end, press from both sides tight fixed unit and include the mounting panel, the mounting panel includes the vertical portion that horizontal part and perpendicular to horizontal part upwards extend, vertical portion on slide and be provided with two and press from both sides tight piece, two press from both sides and be provided with the lead screw between the tight piece under the drive of lead screw, two press from both sides tight piece and do the motion in opposite directions or motion dorsad. The utility model relates to an arrester high-voltage testing supports fixing device has solved the problem that the arrester can't keep the state of standing vertically by oneself in high-voltage testing, makes the arrester fixed firm, is difficult for dropping, has avoided the fixed on-the-spot safety problem of the experiment that causes insecurely.

Description

Arrester high-voltage test supports fixing device

Technical Field

The utility model relates to an electric power test technical field, concretely relates to arrester high-voltage testing supports fixing device.

Background

An arrester is a device that protects equipment from lightning shock waves. When the lightning impulse waves transmitted to the transformer substation along the line exceed the lightning arrester protection level, the lightning arrester firstly discharges, lightning is safely led into the ground through a good conductor, and the amplitude of the lightning voltage is limited below the lightning impulse level of protected equipment by utilizing the grounding device, so that the electrical equipment is protected. In order to ensure the safe operation of the power grid, the arrester should be periodically subjected to preventive tests.

However, at present, no special test platform is provided for the lightning arrester test in both field and test site, and the lightning arrester is fixed mostly in a transverse mode, so that the test data is inaccurate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an arrester high-voltage testing supports fixing device to solve above-mentioned background art in the arrester can't keep upright state and fixed insecure problem in high-voltage testing.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a lightning arrester high-voltage testing supports fixing device, include the support frame with set up in the tight fixed unit of clamp of support frame upper end, it includes the mounting panel to press from both sides tight fixed unit, the mounting panel includes the vertical portion that horizontal part and perpendicular to horizontal part upwards extend, vertical portion on slide and be provided with two and press from both sides tight piece, two press from both sides and be provided with the lead screw between the tight piece under the drive of lead screw, two press from both sides tight piece and do the motion in opposite directions or move dorsad.

As preferred scheme, the support frame includes the main power pole, the main power pole is through the horizontal part fixed connection who connects mounting and mounting panel, evenly arranged at least three bracing piece along circumference on the main power pole, the upper end and the main power pole of bracing piece are articulated, be provided with the sliding sleeve on the main power pole, just the sliding sleeve pass through the horizontal pole respectively with the bracing piece be connected, the one end of horizontal pole with the main power pole articulated mutually, the other end of horizontal pole with the bracing piece articulated mutually.

Preferably, the support rod comprises a support main rod, a telescopic rod capable of axially sliding relative to the support main rod is arranged at the lower end of the support main rod, and a set screw for tightly pushing the telescopic rod is arranged on the support main rod.

Preferably, the lower end of the telescopic rod is provided with a support foot, and the support foot is in ball joint or hinge joint with the telescopic rod.

Preferably, the connecting and fixing member is a flange-type guide shaft support, an upper end of the driving rod is fixedly connected to a shaft end of the flange-type guide shaft support, and a flange end of the flange-type guide shaft support is fixedly connected to the horizontal portion of the mounting plate.

Preferably, a supporting plate is fixedly arranged on the vertical part between the two clamping blocks, the lead screw is rotatably connected with the supporting plate, and the supporting plate limits the freedom degree of the lead screw in left and right movement.

As a preferred scheme, the middle of the screw rod is provided with an annular groove, the front end of the supporting plate is provided with a pressing plate, the opposite surfaces of the supporting plate and the pressing plate are respectively provided with a first concave part and a second concave part, and the first concave part and the second concave part jointly form a through hole matched with the groove.

As the preferred scheme, one end of the lead screw is provided with a detachable knob.

Preferably, the clamping block is slidably connected with the vertical portion through a sliding assembly, the sliding assembly adopts a linear guide rail pair, the guide rail is fixedly arranged on the vertical portion of the mounting plate, and a sliding block matched with the guide rail is fixedly arranged on the rear end face of the clamping block.

Preferably, the inner side surface of the clamping block is provided with a clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses utilize the distance between the lead screw control clamping block, can be applicable to not unidimensional arrester, the commonality is stronger, has solved the arrester simultaneously and can't keep the problem of state upright by oneself in high-voltage test, makes the arrester fixed firm, is difficult for dropping, has avoided the fixed on-the-spot safety problem of the experiment that causes insecurely.

2. The utility model discloses a common atress of many spinal branchs vaulting pole carries out reasonable sharing to load, and supports more stably through three point location, and the security is higher.

3. The utility model discloses a sliding sleeve and bracing piece, but freely adjust aperture and relative fixed point position, use convenient degree height, just the bracing piece adopt structure that can stretch out and draw back, can not only be applicable to smooth environment according to the length of actual conditions regulation bracing piece like this, can also be applicable to the environment of unevenness, use compatibly.

Drawings

Fig. 1 is a schematic perspective view of a supporting and fixing device for a high-voltage test of a lightning arrester;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is an enlarged schematic view of a portion C of FIG. 1;

FIG. 5 is an enlarged schematic view of a portion D of FIG. 1;

fig. 6 is a front view of the high-voltage test supporting and fixing device of the lightning arrester;

fig. 7 is a side view of the supporting and fixing device for high voltage test of the lightning arrester;

FIG. 8 isbase:Sub>A sectional view taken along line A-A of FIG. 6;

FIG. 9 is a sectional view taken along line B-B of FIG. 7;

FIG. 10 is a perspective view of the lead screw;

FIG. 11 is a schematic view of a connection structure between the connecting fixing member and the main vertical rod;

fig. 12 is a three-dimensional structure view of the lightning arrester high-voltage test supporting and fixing device in a working state.

In the figure: 1. mounting a plate; 11. a horizontal portion; 12. a vertical portion; 121. a guide rail; 2. a clamping block; 21. a slider; 22. a clamping groove; 3. a lead screw; 31. a first shaft section; 32. a second shaft section; 33. a third shaft section; 34. an insertion block; 4. a main upright stanchion; 41. a sliding sleeve; 42. connecting blocks; 43. a baffle plate; 5. a flange type guide shaft support; 6. a support bar; 61. supporting the main rod; 62. a telescopic rod; 621. supporting the ground feet; 7. a cross bar; 8. a support plate; 81. pressing a plate; 9. a knob; 91. and (6) tightening the screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

For convenience of description, a coordinate system is defined as shown in fig. 1, and the left and right directions are horizontal, the front and rear directions are vertical, and the up and down directions are vertical.

As shown in fig. 1, 6 and 7, the supporting and fixing device for the high voltage test of the portable lightning arrester comprises a supporting frame and a clamping and fixing unit arranged at the upper end of the supporting frame.

As shown in fig. 1 and 2, the clamping and fixing unit includes a mounting plate 1, the mounting plate 1 includes a horizontal portion 11 and a vertical portion 12 located at a rear end of the horizontal portion and extending upward perpendicular to the horizontal portion, and the vertical portion 12 and the horizontal portion 11 together form an L-shaped structure. The horizontal part 11 of the mounting plate 1 is fixedly connected with the supporting frame. Two clamping blocks 2 are arranged above the horizontal part 11, and the two clamping blocks 2 are respectively connected with the vertical part 12 of the mounting plate 1 in a sliding manner through sliding components. The clamping block 2 is made of insulating materials. As a specific implementation manner, the sliding assembly described in this embodiment employs a linear guide pair, a guide rail 121 of the linear guide pair is fixedly disposed on the vertical portion 12 of the mounting plate 1 through a screw, and a sliding block 21 matched with the guide rail 121 is fixedly disposed on the rear end surface of the clamping block 2.

Two press from both sides and be provided with between the tight piece 2 and transversely run through two in proper order press from both sides the lead screw 3 that presss from both sides the tight piece, press from both sides tight piece 2 on be provided with lead screw 3 matched with screw hole, and two the screw thread of the screw hole of pressing from both sides tight piece 2 revolves to the opposite, correspondingly, 3 both ends of lead screw with the screw thread of screw hole matched with external screw thread revolves to also opposite. Under the drive of the screw rod 3, the two clamping blocks 2 move oppositely or reversely.

As shown in fig. 1, the supporting frame includes a main upright 4, and the upper end of the main upright 4 is fixedly connected to the horizontal portion 11 of the mounting plate 1. As a specific implementation manner, the main upright stanchion 4 in this embodiment is fixedly connected to the horizontal portion 11 of the mounting plate 1 through a connecting fixing member. As shown in fig. 11, the connecting and fixing member is a flange type guide shaft support 5, the upper end of the main upright 4 is inserted into the shaft end of the flange type guide shaft support 5 and is clamped and fixed on the main force bar 4 by a bolt, and the flange end of the flange type guide shaft support 5 is fixedly connected with the horizontal part 11 of the mounting plate 1 by a bolt.

The purpose of design like this is, in order to make whole arrester high-voltage testing support fixing device conveniently carry. Therefore, the lightning arrester high-voltage test supporting and fixing device can be divided into two parts, wherein one part is a mounting plate with a flange type guide shaft support, and the other part is a supporting frame.

Main pole setting 4 go up and evenly be provided with at least three bracing piece 6 along circumference, just the upper end of bracing piece 6 with main pole setting 4 articulated mutually. As a specific implementation manner, three support rods are uniformly arranged on the main upright rod 4 in the embodiment along the circumferential direction.

As shown in fig. 3, a sliding sleeve 41 capable of sliding up and down relative to the main upright 4 is disposed on the main upright 4, and the sliding sleeve 41 is connected to the supporting rods 6 through the cross bar 7. One end of the cross rod 7 is hinged with the main upright stanchion 4, and the other end of the cross rod 7 is hinged with the support rod 6.

Further, as shown in fig. 2 and 8, a supporting plate 8 is fixedly disposed on the vertical portion 12 of the mounting plate 1 between the two clamping blocks 2, and an avoiding notch for avoiding the guide rail 121 is disposed at the rear end of the supporting plate 8. The lead screw 3 is rotatably connected with the supporting plate 8, and the supporting plate 8 limits the freedom degree of the lead screw 3 moving left and right relative to the mounting plate 1.

As a specific implementation manner, as shown in fig. 10, in this embodiment, an annular groove is disposed in the middle of the screw rod 3, the groove divides the screw rod into a first shaft section 31, a second shaft section 32 and a third shaft section 33 from left to right, wherein the first shaft section 31 and the third shaft section 33 are respectively provided with an external thread matching with the clamping block 2, and the second shaft section 32 is an optical axis and has a diameter smaller than that of the first shaft section 31 and the third shaft section 33. As shown in fig. 2 and 8, a pressing plate 81 is disposed at the front end of the supporting plate 8, and the pressing plate 81 is fixedly connected to the supporting plate 8 by a screw. The opposite surfaces of the supporting plate 8 and the pressing plate 81 are respectively provided with a first concave part and a second concave part, and the first concave part and the second concave part jointly form a through hole matched with the second shaft section 32 of the screw rod 3.

Further, one end of the screw rod 3 is provided with a knob 9. As a specific implementation manner, as shown in fig. 10, in this embodiment, an insertion block 34 is disposed on an end surface of one end of the lead screw 3, and an insertion hole matched with the insertion block 34 is disposed on the knob 9. The knob 9 is provided with a set screw 91 for tightly propping against the insertion block 34.

Further, the cross section of the insertion block 34 is a non-circular structure, and preferably, the cross section of the insertion block 34 is a regular polygon structure. As a specific implementation manner, the cross section of the insertion block 34 in this embodiment is a square structure.

Further, as shown in fig. 2, a clamping groove 22 having a V-shaped structure is provided on an inner side surface of the clamping block 2 (the side opposite to the two clamping blocks 2 is the inner side). Preferably, a buffer pad (not shown) is fixedly arranged in the clamping groove 22 by a sticking manner, and the buffer pad is made of a rubber material.

Further, as shown in fig. 5, a connecting block 42 is arranged on the main upright 4, and the upper end of the support rod 6 is hinged with the connecting block 42.

Further, as shown in fig. 1, the support rod 6 adopts a telescopic structure, and includes a support main rod 61, the upper end of the support main rod 61 is hinged to the main vertical rod 4, the lower end of the support main rod 61 is provided with a telescopic rod 62 capable of axially sliding relative to the support main rod 61, and the support main rod 6 is provided with a set screw (not shown in the figure) for tightly pushing against the telescopic rod 62. Preferably, the supporting main rod 61 is a hollow cylindrical structure, and is sleeved outside the telescopic rod 62.

Further, a support foot 621 is arranged at the lower end of the telescopic rod 62, and the support foot 621 is connected or hinged with the telescopic rod 62 in a ball joint manner. As a specific embodiment, as shown in fig. 4, the supporting feet 621 of this embodiment are hinged to the telescopic rod 62.

Further, as shown in fig. 3, a baffle 43 is disposed at the lower end of the main upright 4, and the baffle 43 is detachably and fixedly connected to the main upright 4.

Furthermore, a set screw (not shown in the figure) for tightly pushing the main upright 4 is arranged on the sliding sleeve 4.

During the use, at first move sliding sleeve 4 to suitable position to lock for bracing piece 6 reaches stable aperture, changes according to the undulation on ground among the service environment, and the length of every bracing piece 6 can be adjusted by oneself to the testing personnel, has guaranteed whole experimental strutting arrangement's steadiness. After the support frame is stable, the upper clamping and fixing unit is installed on the support frame, and the installation of the whole lightning arrester high-voltage test supporting and fixing device is completed. Then, the tester operates the knob 9 to rotate the lead screw 3, and adjusts the distance between the two clamping blocks 2, thereby clamping the arrester. The problem of the arrester can't keep upright state in high-voltage test is solved, make the arrester fixed firm, be difficult for dropping, avoided the fixed on-the-spot safety problem of test that causes insecurely.

The foregoing is a preferred embodiment of the present invention and the description of the specific embodiments is only for better understanding of the idea of the invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention. The above-mentioned embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a lightning arrester high-voltage testing supports fixing device which characterized in that: including the support frame with set up in the tight fixed unit of clamp of support frame upper end:

the clamping and fixing unit comprises a mounting plate, the mounting plate comprises a horizontal part and a vertical part which is perpendicular to the horizontal part and extends upwards, two clamping blocks are arranged on the vertical part in a sliding mode, a lead screw is arranged between the two clamping blocks, and the two clamping blocks move oppositely or move back to back under the driving of the lead screw.

2. The supporting and fixing device for the high voltage test of the lightning arrester according to claim 1, characterized in that: the support frame includes the principal force pole, the horizontal part fixed connection of principal force pole through connecting mounting and mounting panel, evenly arranged at least three bracing piece along circumference on the principal force pole, the upper end and the principal force pole of bracing piece are articulated, be provided with the sliding sleeve on the principal force pole, just the sliding sleeve pass through the horizontal pole respectively with the bracing piece be connected, the one end of horizontal pole with the principal force pole articulated mutually, the other end of horizontal pole with the bracing piece articulated mutually.

3. The lightning arrester high-voltage test supporting and fixing device according to claim 2, characterized in that: the bracing piece including supporting the mobile jib, the lower extreme of supporting the mobile jib be provided with for supporting the mobile jib endwise slip's telescopic link, just the supporting the mobile jib on be provided with and be used for the top tight the holding screw of telescopic link.

4. The supporting and fixing device for the high voltage test of the lightning arrester as claimed in claim 3, characterized in that: the lower extreme of telescopic link be provided with the support lower margin, just the support lower margin with telescopic link ball joint or articulated.

5. The lightning arrester high-voltage test supporting and fixing device according to claim 2, characterized in that: the connecting and fixing part adopts a flange type guide shaft support, the upper end of the main force rod is fixedly connected with the shaft end of the flange type guide shaft support, and the flange end of the flange type guide shaft support is fixedly connected with the horizontal part of the mounting plate.

6. The supporting and fixing device for the high voltage test of the lightning arrester according to claim 1, characterized in that: a supporting plate is fixedly arranged between the two clamping blocks on the vertical part, the screw rod is rotatably connected with the supporting plate, and the supporting plate limits the freedom degree of the screw rod in left and right movement.

7. The lightning arrester high-voltage test supporting and fixing device according to claim 6, characterized in that: the middle part of the screw rod is provided with an annular groove, the front end of the supporting plate is provided with a pressing plate, the opposite surfaces of the supporting plate and the pressing plate are respectively provided with a first concave part and a second concave part, and the first concave part and the second concave part jointly form a through hole matched with the groove.

8. The supporting and fixing device for the high voltage test of the lightning arrester according to claim 1, characterized in that: one end of the screw rod is provided with a detachable knob.

9. The supporting and fixing device for the high voltage test of the lightning arrester as claimed in claim 1, characterized in that: the clamping block is connected with the vertical part in a sliding mode through a sliding assembly, the sliding assembly is a linear guide rail pair, the guide rail is fixedly arranged on the vertical part of the mounting plate, and a sliding block matched with the guide rail is fixedly arranged on the rear end face of the clamping block.

10. The supporting and fixing device for the high voltage test of the lightning arrester according to claim 1, characterized in that: and a clamping groove is formed in the inner side surface of the clamping block.