CN212206884U - Connecting fitting for insulator tension test - Google Patents

Abstract

The utility model discloses a connecting hardware fitting for insulator tension test, which comprises a connecting seat, a connecting part, two reset parts and two limit parts; the bottom of the connecting seat is provided with a blind hole; the inner wall of the upper end of the blind hole is provided with a threaded ring, and the left side and the right side of the lower end of the blind hole are respectively provided with a movable cavity; each movable cavity is internally provided with a limit part; the first end of the limiting part is pressed against one side of the movable cavity far away from the blind hole, and the second end of the limiting part can be positioned in the blind hole along the movable cavity in a sliding manner; the second ends of the two limiting parts are positioned in the blind holes and are mutually pressed; the connecting part comprises a ball head connecting rod used for being connected with the tested insulator and a screw rod matched with the threaded ring; when the screw rod is arranged in the blind hole, one side of the second ends of the two limiting parts, which is far away from the movable cavity, is abutted against the outer side of the ball head connecting rod, and the tops of the second ends of the two limiting parts are abutted against the bottom of the screw rod. The utility model discloses the development cost of conversion link fitting has significantly reduced.

Description

Connecting fitting for insulator tension test

Technical Field

The utility model belongs to the technical field of the insulator test and specifically relates to indicate a link fitting of insulator tension test.

Background

Generally, suspension insulators need to be subjected to a tensile failure test hardware fitting, the hardware fitting is carried out according to different insulator sizes, and a set of matched connecting hardware fitting is designed according to the connecting size of each insulator. Particularly, during an electromechanical failure test, a large-tonnage accompanied test insulator needs to be used, and a conversion connecting hardware fitting is needed between an accompanied test product and a tested product so as to connect two insulators with different sizes and perform the test. However, the existing conversion connecting fitting is poor in universality, insulators of various sizes cannot be assembled, and a pair of matched conversion connecting fittings needs to be designed every time the insulators of different sizes are replaced, so that the cost is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the technical problem that a link fitting of insulator tension test is provided, overcome among the prior art defect that the commonality is poor and the expense is high.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a connection hardware fitting for insulator tension test comprises a connection seat, a connection part, two reset parts and two limiting parts;

the top of the connecting seat is provided with a ball socket for connecting with an accompanying insulator;

the bottom of the connecting seat is provided with a blind hole;

the inner wall of the upper end of the blind hole is provided with a threaded ring, and the left side and the right side of the lower end of the blind hole are respectively provided with a movable cavity;

each movable cavity is internally provided with a limiting part;

the first end of the limiting part is pressed against one side of the movable cavity far away from the blind hole, and the second end of the limiting part can be positioned in the blind hole along the movable cavity in a sliding manner;

the second ends of the two limiting parts are positioned in the blind holes and are mutually abutted;

the connecting part comprises a ball head connecting rod used for being connected with the tested insulator and a screw rod matched with the threaded ring;

the ball head connecting rod is arranged on the lower side of the screw rod;

the diameter of the screw is larger than that of the ball head connecting rod;

when the screw is arranged in the blind hole, one side of the second ends of the two limiting parts, which is far away from the movable cavity, is abutted against the outer side of the ball head connecting rod, and the tops of the second ends of the two limiting parts are abutted against the bottom of the screw;

one end of the reset part can penetrate through the side wall of the connecting seat in a sliding mode and is connected with the limiting part.

Further, the limiting part comprises a limiting block and a first spring;

one end of the first spring is connected with one side, far away from the blind hole, of the movable cavity, and the other end of the first spring is connected with one side, far away from the blind hole, of the limiting block.

Furthermore, the lower side of one end of the limiting block, which is positioned in the blind hole, is an inclined plane;

the inclined plane is inclined outwards gradually from bottom to top.

Further, the first spring is a compression spring.

Furthermore, the ball head connecting rod and the screw rod are integrally formed.

Further, the reset part comprises a pull rod, a second spring, an upper limit ball and a lower limit ball;

the left side and the right side of the connecting seat are respectively provided with a reset hole;

the upper limiting groove and the lower limiting groove are respectively formed in the upper side and the lower side of one end, away from the movable cavity, of each reset hole;

one end of the pull rod, which is far away from the movable cavity, is provided with a through hole;

go up spacing ball, second spring and lower spacing ball from top to bottom install in proper order in the through-hole, just go up spacing ball and lower spacing ball symmetry setting, so that the second spring promotes go up spacing ball card and go up the spacing inslot, lower spacing ball card is gone into down the spacing inslot.

(III) advantageous effects

The utility model has the advantages that: the connecting hardware fitting for the tension test of the insulator is provided with two limiting parts, and is used for limiting the screw rod when the screw rod is completely inserted into the blind hole and connected with the threaded ring, so as to provide larger supporting force for the screw rod and the ball head connecting rod; be provided with two portions that reset for the spacing portion of pulling removes towards the slip intracavity, and then can make connecting portion and connecting seat separation, realizes being connected dismantling of connecting portion and connecting seat. The utility model discloses can change connecting portion to with the quilt examination insulator phase-match of difference, need not to design many sets and contain the conversion link fitting of ball socket, only need set up not unidimensional connecting portion, when changing the quilt examination product, only need change connecting portion, and need not to dismantle the connecting seat of installing on accompanying examination insulator again and get off and change, saved the development expense of gold utensil on the one hand, on the other hand has improved the commonality of connecting seat, change behind the connecting portion alright adaptation multiple size the quilt examination insulator.

Drawings

Fig. 1 is a first schematic structural diagram of a connection fitting for insulator tension testing according to the present invention;

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

fig. 3 is a second schematic structural diagram of a connection fitting for insulator tension testing according to the present invention;

fig. 4 is the schematic structural diagram of the limiting block.

Description of reference numerals:

1. a connecting seat; 11. a ball socket; 12. blind holes; 13. a movable cavity; 14. a reset hole; 141. an upper limiting groove; 142. a lower limiting groove;

2. a connecting portion; 21. a ball head connecting rod; 22. a screw;

3. a reset section; 31. a pull rod; 32. a second spring; 33. an upper limit ball; 34 a lower limiting ball;

4. a limiting part; 41. a limiting block; 42. a first spring;

5. an insulator is tested; 6. the insulator to be tested.

Detailed Description

For a better explanation of the invention, the invention is described in detail by way of specific embodiments for ease of understanding.

Referring to fig. 1-4, a connection fitting for insulator tension testing includes a connection seat 1, a connection part 2, two reset parts 3 and two limit parts 4;

the top of the connecting seat 1 is provided with a ball socket 11 for connecting with the accompanying insulator 5;

the bottom of the connecting seat 1 is provided with a blind hole 12;

the inner wall of the upper end of the blind hole 12 is provided with a threaded ring, and the left side and the right side of the lower end are respectively provided with a movable cavity 13;

each movable cavity 13 is internally provided with a limit part 4;

the first end of the limiting part 4 is pressed against one side of the movable cavity 13 far away from the blind hole 12, and the second end of the limiting part 4 can be positioned in the blind hole 12 along the movable cavity 13 in a sliding manner;

the second ends of the two limiting parts 4 are positioned in the blind holes 12 and are mutually pressed;

the connecting part 2 comprises a ball head connecting rod 21 used for being connected with the tested insulator 6 and a screw rod 22 matched with the thread ring;

the ball head connecting rod 21 is arranged at the lower side of the screw rod 22;

the diameter of the screw 22 is larger than that of the ball head connecting rod 21;

when the screw 22 is installed in the blind hole 12, one side of the second ends of the two limiting parts 4, which is far away from the movable cavity 13, is pressed against the outer side of the ball head connecting rod 21, and the tops of the second ends of the two limiting parts 4 are pressed against the bottom of the screw 22;

one end of the reset part 3 can pass through the side wall of the connecting seat 1 in a sliding way to be connected with the limiting part 4.

Referring to fig. 1, the stopper portion 4 includes a stopper 41 and a first spring 42; one end of the first spring 42 is connected with one side of the movable cavity 13 far away from the blind hole 12, and the other end is connected with one side of the limiting block 41 far away from the blind hole 12. The first spring is arranged and used for pushing the limiting block to move towards one side of the blind hole, and when the screw is withdrawn and the pull rod is not limited, the limiting block can realize automatic reset.

Referring to fig. 4, the lower side of one end of the limiting block 41 located in the blind hole 12 is an inclined plane;

the inclined plane is inclined outwards gradually from bottom to top.

Preferably, the first spring 42 is a compression spring.

Preferably, the ball joint lever 21 is integrally formed with the screw 22.

Referring to fig. 2, the restoring portion 3 includes a pull rod 31, a second spring 32, an upper limit ball 33, and a lower limit ball 34; the left side and the right side of the connecting seat 1 are respectively provided with a reset hole 14; the reset holes 14 are communicated with the movable cavity 13, and the upper side and the lower side of one end of each reset hole 14, which is far away from the movable cavity 13, are respectively provided with an upper limit groove 141 and a lower limit groove 142; one end of the pull rod 31 far away from the movable cavity 13 is provided with a through hole 311; the upper limiting ball 33, the second spring 32 and the lower limiting ball 34 are sequentially arranged in the through hole 311 from top to bottom, and the upper limiting ball 33 and the lower limiting ball 34 are symmetrically arranged, so that the second spring 32 pushes the upper limiting ball 33 to be clamped into the upper limiting groove 141 and the lower limiting ball 34 to be clamped into the lower limiting groove 142. The upper limiting ball 34 and the lower limiting ball 32 are arranged and used for pushing the upper limiting ball and the lower limiting ball to slide in the upper limiting groove and the lower limiting groove respectively when the upper limiting ball and the lower limiting ball 34 slide to the positions corresponding to the upper limiting groove and the lower limiting groove, and the pull rod 31 is limited so as to detach the connecting part 2.

Preferably, the second spring 32 is a compression spring.

Wherein, the pull rod 31 is connected with one side of the limiting block 41 far away from the blind hole 12;

specifically, the upper end of the upper limiting ball 33 is hemispherical, the lower end is columnar, and the lower limiting ball 34 and the upper limiting ball 33 have the same structure; the upper limiting groove 141 is matched with the hemispherical structure of the upper limiting ball 33, and the lower limiting groove 142 is matched with the hemispherical structure of the lower limiting ball 34.

The utility model discloses a concrete implementation process does:

the two limiting blocks are positioned in the blind holes and mutually abutted, and the limiting blocks are in an initial state;

the upper limiting ball is separated from the upper limiting groove, the lower limiting ball is separated from the lower limiting groove, and the pull rod is in an initial state at the moment;

connecting the ball socket with a ball head of an accompanying insulator;

the screw is screwed into the thread ring of the blind hole, the two limiting blocks are pushed towards the movable cavity until the screw is completely screwed into the thread ring of the blind hole, and the two limiting blocks slide towards one side of the blind hole to clamp the screw;

a matched tested insulator is assembled on the ball head at the lower end of the ball head connecting rod for testing;

after the test finishes, dismantle the insulator of being tried, with the pull rod towards keeping away from blind hole one side pulling, make last spacing ball card go into spacing groove, lower spacing ball card go into down the spacing groove, the pull rod is spacing, connecting portion can be dismantled, push back the pull rod after finishing dismantling, resume initial condition.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims (6)

1. A connection hardware fitting for insulator tension test is characterized by comprising a connection seat, a connection part, two reset parts and two limiting parts;

the top of the connecting seat is provided with a ball socket for connecting with an accompanying insulator;

the bottom of the connecting seat is provided with a blind hole;

the inner wall of the upper end of the blind hole is provided with a threaded ring, and the left side and the right side of the lower end of the blind hole are respectively provided with a movable cavity;

each movable cavity is internally provided with a limiting part;

the first end of the limiting part is pressed against one side of the movable cavity far away from the blind hole, and the second end of the limiting part can be positioned in the blind hole along the movable cavity in a sliding manner;

the second ends of the two limiting parts are positioned in the blind holes and are mutually abutted;

the connecting part comprises a ball head connecting rod used for being connected with the tested insulator and a screw rod matched with the threaded ring;

the ball head connecting rod is arranged on the lower side of the screw rod;

the diameter of the screw is larger than that of the ball head connecting rod;

when the screw is arranged in the blind hole, one side of the second ends of the two limiting parts, which is far away from the movable cavity, is abutted against the outer side of the ball head connecting rod, and the tops of the second ends of the two limiting parts are abutted against the bottom of the screw;

one end of the reset part can penetrate through the side wall of the connecting seat in a sliding mode and is connected with the limiting part.

2. The connecting fitting for the insulator tension test according to claim 1, wherein the limiting part comprises a limiting block and a first spring;

one end of the first spring is connected with one side, far away from the blind hole, of the movable cavity, and the other end of the first spring is connected with one side, far away from the blind hole, of the limiting block.

3. The connecting fitting for the insulator tension test according to claim 2, wherein the lower side of one end of the limiting block, which is located in the blind hole, is an inclined plane;

the inclined plane is inclined outwards gradually from bottom to top.

4. The connecting fitting for the insulator tension test according to claim 2, wherein the first spring is a compression spring.

5. The connecting fitting for the insulator tension test according to claim 1, wherein the ball head connecting rod is integrally formed with the screw rod.

6. The connecting fitting for the insulator tension test according to claim 1, wherein the reset portion comprises a pull rod, a second spring, an upper limiting ball and a lower limiting ball;

the left side and the right side of the connecting seat are respectively provided with a reset hole;

the upper limiting groove and the lower limiting groove are respectively formed in the upper side and the lower side of one end, away from the movable cavity, of each reset hole;

one end of the pull rod, which is far away from the movable cavity, is provided with a through hole;

go up spacing ball, second spring and lower spacing ball from top to bottom install in proper order in the through-hole, just go up spacing ball and lower spacing ball symmetry setting, so that the second spring promotes go up spacing ball card and go up the spacing inslot, lower spacing ball card is gone into down the spacing inslot.

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