CN215340164U - Ultra-light and convenient test base for small lightning arrester and insulator - Google Patents

Abstract

The utility model discloses an ultra-light and convenient test base for a small-sized lightning arrester and an insulator, which comprises a positioning pipe and three supporting members connected to the positioning pipe, wherein at least two of the three supporting members can rotate around the positioning pipe; the screw rod at the bottom of the lightning arrester/insulator is locked by the radial locking piece after being inserted into the positioning tube, so the lightning arrester/insulator is small in size and light in weight when being carried. During the use, the locking behind the structure that three supporting member can form similar to the tripod has the stable support function, can strictly guarantee can not take place to empty the phenomenon in the experimentation. The screw rod at the bottom of the arrester/insulator is inserted into the inner cavity of the positioning tube and then locked by the radial locking piece, so that the device is suitable for testing the arresters/insulators with different sizes. In addition, the radial locking piece can also be used as a grounding pile head. After the test is finished, the three supporting components can be sleeved and locked again, and the carrying is convenient.

Description

Ultra-light and convenient test base for small lightning arrester and insulator

Technical Field

The utility model relates to an insulator test base, in particular to an ultra-light and convenient test base for a small lightning arrester and an insulator.

Background

At present, the high-voltage direct-current test of a 10kV lightning arrester and the alternating-current voltage withstand test of a 10kV insulator and a 35kV insulator can be carried out only by vertically placing the lightning arrester and the insulator (namely, a pressurizing part is far away from the ground), and a temporary insulation test base is usually required to be built on site because the lightning arrester cannot be erected by itself due to the self structure of the lightning arrester. The insulation test base temporarily built on site has the following problems:

(1) the temporary building of the insulation test base has great potential safety hazard. The insulation test base built temporarily usually comprises general tools at will, and the steadiness is poor during the field test, takes place to empty when experimental very easily, has great safe risk.

(2) The temporarily built insulation test base can influence the test data of the high-voltage test due to the insulation performance problem of the base. Particularly, in a high-voltage direct-current test of the lightning arrester, namely, a direct-current reference voltage test under 1mA, the temporary insulation test base may have a large influence on test data due to factors such as space leakage current.

CN202262610U discloses a test base of 10kV arrester commonality sets up a plurality of support columns on the base main part, connects the screw rod of arrester tip through the mounting hole of support column centre bore department, supports the full skirt of arrester bottommost through the upper end of support column, can carry out the capability test of a plurality of arresters simultaneously. The base solves the problems of stability and universality, but has the problems of inconvenient carrying caused by overlarge volume and overweight. In addition, a plurality of lightning arresters and insulators are placed at the same time for simultaneous tests, actual field workers have more and complicated test equipment, are unwilling to carry a large-size heavy test base to work on site, and do not need to test a plurality of lightning arresters and insulators, and a high-voltage direct-current test under 1mA cannot simultaneously test a plurality of lightning arresters under normal conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lightning arrester and insulator test base which is small in size, stable in support and high in universality, and is suitable for performance tests of a 10kV lightning arrester and 10kV and 35kV insulators.

The utility model provides an ultra-light and convenient test base for a small lightning arrester and an insulator, which comprises a positioning pipe and three supporting members connected to the positioning pipe, wherein at least two of the three supporting members can rotate around the positioning pipe; the screw rod at the bottom of the lightning arrester/insulator is inserted into the positioning tube and then locked by the radial locking piece.

In one embodiment of the above base, the support member includes an L-shaped leg and a ring vertically connected to one end of the long arm, and the inner diameter of the ring is larger than the outer diameter of the positioning tube.

In one embodiment of the base, the lengths of the long arms of the legs of the three support members are decreased progressively, and the decreased lengths are greater than the thicknesses of the short arms.

In one embodiment of the above base, the positioning tube is a circular tube, and the lower end section of the positioning tube is an external thread section.

In one embodiment of the above base, a nut is connected to the external threaded section of the positioning tube as the axial locking member.

In one embodiment of the base, the bottom surface of the circular ring of the support member with the longest long arm is welded with the upper end of the positioning pipe, so that the positioning pipe and the support member form an inverted U-shaped part; the other two supporting components are sleeved on the positioning pipe through the circular ring of the other two supporting components in sequence and then locked through the axial locking piece.

In another embodiment of the above base, the positioning tube is a circular tube, and both the upper end section and the lower end section of the positioning tube are external thread sections.

In another embodiment of the above base, a nut is connected to each of the external threaded sections as the axial locking member.

In another embodiment of the above base, the three support members are sleeved on the positioning tube through the circular rings in turn according to the length of the long arm, and then locked through the axial locking pieces at the two ends.

In another embodiment of the base, the radial locking member is a bolt that can be screwed in and out radially.

The three supporting members of the utility model are installed by the positioning tube, at least two of the three supporting members can rotate around the positioning tube, and the three supporting members can be locked by the axial locking piece on the positioning tube in an internally and externally sleeved mode, so the utility model has small volume and light weight when being carried. During the use, the locking behind the structure that three supporting member can form similar to the tripod has the stable support function, can strictly guarantee can not take place to empty the phenomenon in the experimentation. The positioning tube is used as a mounting structure for testing the arrester or the insulator, and the screw rod at the bottom of the arrester/insulator is inserted into the inner cavity of the positioning tube and then locked by the radial locking piece, so that the positioning tube is suitable for testing the arresters/insulators with different sizes. In addition, the radial locking piece can also be used as a grounding pile head. After the test is finished, the three supporting components can be sleeved and locked again, and the carrying is convenient.

Drawings

Fig. 1 is a schematic top view of a first embodiment of the utility model.

Fig. 2 is a schematic view a-a in fig. 1.

Fig. 3 is a schematic three-dimensional structure diagram of the present embodiment.

Fig. 4 is a schematic view of an assembly structure of the positioning tube and the first support member in fig. 3.

Fig. 5 and 6 are schematic structural views of the second support member and the third support member, respectively.

Fig. 7 is a schematic top view of the second embodiment of the present invention.

Fig. 8 is a schematic view of B-B in fig. 7.

Detailed Description

First embodiment, as can be seen from fig. 1 to 6, the ultra-lightweight test base for a small arrester and an insulator disclosed in this embodiment includes a positioning tube 1, a first support member 2, a second support member 3, a third support member 4, an axial locking member 5, and a radial locking member 6.

The positioning tube 1 is a round tube, and the lower end of the positioning tube is provided with an external thread section. The external threaded section is connected with a nut as an axial locking member 5. In order to facilitate the rotation operation of the nut, a circle of rib teeth capable of increasing friction force is processed on the outer wall of the nut.

The first support member 2, the second support member 3 and the third support member 4 are similar in structure and are all formed by welding L-shaped support legs and a circular ring vertically arranged at one end of a long arm of each support leg, but the lengths of the long arms of the three support legs are gradually reduced, and the gradually reduced lengths are larger than the thicknesses of the short arms.

The bottom surface of the circular ring of the first supporting component 2 is welded with the upper end of the positioning pipe 1, so that the positioning pipe 1 and the first supporting component 2 form an inverted U-shaped piece, and the other two supporting components are sequentially sleeved on the positioning pipe through the circular ring and then are locked through the axial locking piece 5.

That is, the first support member 2 of the present embodiment is welded to the positioning tube 1 as a single piece as a basic support, and the second support member 3 and the third support member 4 can be rotated around the positioning tube 1 to be unlocked and locked.

The side wall of the first support member 2 is connected with a bolt as a radial locking piece 6, and in order to ensure the locking force of the bolt, the thickness of the circular ring of the first support member can be set to be larger, so that the length of the threaded hole of the side wall of the first support member is longer. A thick nut can be welded on the outer wall of the circular ring of the first supporting member, the wall thickness of the circular ring does not need to be increased, and the circular ring side wall is only provided with a round hole at the corresponding position of the nut, so that the bolt is locked through the thick nut.

When the test base is used, the first supporting member 2 and the positioning pipe 1 are used as basic supports, then the second supporting member 3 and the third supporting member 4 are rotated to be opened, an included angle between the three supporting members is 120 degrees, and then the three supporting members are axially locked to form a stable tripod support, so that the test base has a stable supporting function, and the phenomenon of toppling over cannot be generated in the test process.

Then the screw rod at the bottom of the lightning arrester or the insulator is inserted into the positioning tube 1 and is radially locked by the bolt. Because the bolt radially locks the arrester and the insulator, the device can be suitable for the arrester and the insulator test of different sizes, and only the diameter of the inner diameter of the positioning tube 1 is set to be larger than the diameters of all the 10kV arresters and the 10kV and 35kV insulator bottom screws, so that the screws can be inserted into the positioning tube.

In order to facilitate the screwing in and out of the bolt, a circle of rib teeth are also processed on the outer wall of the head part of the bolt.

When testing the grounding, the grounding wire can be connected to the bolt as the radial locking piece 6, i.e. the bolt can be used as the grounding pile head.

After the test is finished, the nut at the lower end of the positioning tube 1 is unscrewed, the second supporting member 32 and the third supporting member 4 are reset and sleeved with the first supporting member 2, then the nut is screwed down, and the three supporting members are folded and stored, so that the size is small and the weight is light.

In the second embodiment, as shown in fig. 7 and 8, the difference between the present embodiment and the first embodiment is:

the three supporting members are all sleeved outside the positioning pipe through the circular rings, and the two ends of the positioning pipe are respectively provided with external thread sections connected with nuts.

I.e. the three support members of this embodiment are all rotatable about the positioning tube. When the tripod is used, the nut at the upper end is taken down, the three supporting members are adjusted to be in an angle, and then the nut at the upper end is screwed and fastened, so that the base forms a stable tripod bracket.

Other structures, lightning arresters and insulators of the embodiment are all the same as those of the embodiment I.

Claims (10)

1. The utility model provides a small-size arrester, insulator are with experimental base of type of ultralight and convenient, its characterized in that: the device comprises a positioning pipe and three supporting members connected to the positioning pipe, wherein at least two of the three supporting members can rotate around the positioning pipe, at least the lower end section of the positioning pipe is connected with an axial locking piece, and the three supporting members can be locked in an inner-outer sleeved mode through the axial locking piece; the screw rod at the bottom of the lightning arrester/insulator is inserted into the positioning tube and then locked by the radial locking piece.

2. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 1, characterized in that: the supporting member comprises an L-shaped supporting leg and a circular ring vertically connected to one end of a long arm of the supporting member, and the inner diameter of the circular ring is larger than the outer diameter of the positioning pipe.

3. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 2, characterized in that: the length of the long arm of the supporting leg of the three supporting members is reduced progressively, and the reduced length is greater than the thickness of the short arm.

4. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 3, characterized in that: the positioning pipe is a round pipe, and the lower end section of the positioning pipe is an external thread section.

5. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 4, characterized in that: the external thread section of the positioning pipe is connected with a nut as the axial locking piece.

6. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 5, characterized in that: the bottom surface of the circular ring of the support component with the longest long arm is welded with the upper end of the positioning pipe, so that the positioning pipe and the support component form an inverted U-shaped piece; the other two supporting components are sleeved on the positioning pipe through the circular ring of the other two supporting components in sequence and then locked through the axial locking piece.

7. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 3, characterized in that: the positioning pipe is a circular pipe, and the upper end section and the lower end section of the positioning pipe are both external thread sections.

8. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 7, characterized in that: the external thread sections are respectively connected with nuts as the axial locking pieces.

9. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 8, wherein: the three supporting components are sleeved on the positioning pipe through the circular rings according to the length of the long arm in sequence and then locked through the axial locking pieces at the two ends.

10. The ultra-lightweight test base for the small-sized lightning arrester and insulator according to claim 9, characterized in that: the radial locking piece is a bolt which can be screwed in and out radially.

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