CN112103120A

CN112103120A - Center positioning device for isolation knife assembly of solid-sealed polar pole

Info

Publication number: CN112103120A
Application number: CN202010910083.3A
Authority: CN
Inventors: 杨波; 周建江; 华崭梁
Original assignee: Ningbo Muyi Electric Co ltd
Current assignee: Ningbo Muyi Electric Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2020-12-18
Anticipated expiration: 2040-09-02
Also published as: CN112103120B

Abstract

The utility model relates to a gu seal utmost point post and keep apart knife tackle spare center positioner, keep apart the blade including two fixed mounting and rotate to be connected drive pull rod on the isolation blade, two keep apart the blade upper end and be formed with the constant head tank, two be provided with the supporter on the isolation blade, the supporter both ends are provided with the support post that deflects when avoiding keeping apart the blade rotation. This application has the setting through the supporting member can take place the skew rotation back at the isolation blade, carries out the effect of calibration to isolation blade position, ensures to keep apart the blade and can normally peg graft with the contact seat all the time, and then ensures the long-time steady operation's of equipment effect.

Description

Center positioning device for isolation knife assembly of solid-sealed polar pole

Technical Field

The application relates to the field of power equipment, in particular to a center positioning device for an isolation knife assembly of a solid-sealed polar pole.

Background

The solid insulation cabinet is used as a control device for opening and closing electric power transmission in an electric power distribution system, an insulation shell is arranged in the insulation cabinet, a vacuum switch and an isolation grounding switch are arranged in the shell, interfaces for incoming lines and outgoing lines are further arranged on the shell, and then bus connection is needed between each solid insulation cabinet.

Chinese patent CN205004671U, a solid insulation totally enclosed load switch device, discloses a switch device, which comprises a cabinet body, a load switch body fixed on the upper part of the cabinet body, an isolation grounding switch operating mechanism, a load switch operating mechanism and a cabinet body interlocking device installed on the load switch body, an upper wire outlet seat, a solid insulation system, a vacuum arc-extinguishing chamber, a wire outlet sleeve seat and a cable interface installed on the rear part of the load switch body, all of which are sealed and poured. .

Aiming at the related technologies, the switch operating mechanism is made into a knife switch type three-position switch, the contact between a knife switch and an isolation static contact of the three-position switch is influenced by electric power, the knife switch deviates from the original position for a long time, the contact between the knife switch and the contact is influenced, the resistance is increased, the heating of a conductive loop exceeds the standard, and accidents occur.

Disclosure of Invention

In order to reduce the possibility of knife switch offset, the application provides a solid utmost point post isolation knife tackle spare central positioning device that seals.

The application provides a pair of gu seal utmost point post isolation knife tackle spare central positioner adopts following technical scheme: the utility model provides a gu seal utmost point post and keep apart knife tackle spare central positioning device, includes two fixed mounting's isolation blade and rotates to be connected drive pull rod on the isolation blade, two isolation blade upper end is formed with the constant head tank, two be provided with the supporter on the isolation blade, the supporter both ends are provided with the support post that deflects when avoiding isolation blade to rotate.

By adopting the technical scheme, when the isolation blade is installed and becomes loose, or when the length of the isolation blade is too long, the top end of the isolation blade is easy to deviate, so that after the top end of the isolation blade deviates, the relative position of the isolation blade and the isolation static contact also relatively deviates, after the isolation blade in the disconnecting link assembly is additionally provided with the support, the isolation blade is positioned through the support columns at the two ends of the support, after the isolation blade deviates due to various conditions, the support is limited by the insulating part, the deviation state of the isolation blade is forced to stop, so that the isolation blade and the isolation static contact can be stably and smoothly spliced, the top end of the isolation blade is prevented from being burnt out, and the arrangement of the support ensures that the whole solid-sealed pole device has longer service life and higher safety and stability.

Preferably, the supporting piece comprises a positioning sleeve which is sleeved and fixed on the outer end faces of the two isolation blades, and the supporting columns are arranged on the outer walls of two sides of the positioning sleeve.

Through adopting above-mentioned technical scheme, the supporter can be established at two after keeping apart the blade relatively fixed, reduces the installation degree of difficulty of supporter, and the support post setting can be along with the installation of switch subassembly behind the position sleeve outer wall simultaneously, is set up on the both sides inner wall of insulating part together.

Preferably, the connecting plates at the two ends of the positioning sleeve are arranged in a same-direction bending mode, the top ends of the two connecting plates are oppositely provided with positioning plates, and an operation opening is formed between the two positioning plates.

Through adopting above-mentioned technical scheme, the connecting plate syntropy of position sleeve both ends is buckled the back for on the blade outer wall was kept apart in laminating that whole position sleeve can be better, and can the lock joint at the opposite side of keeping apart the blade through the locating plate that the top set up, ensure that whole position sleeve can overlap establish the laminating on the outer wall of keeping apart the blade, ensure preliminary stable connection. On the other hand, the formation of the operation opening between the positioning plates can facilitate an operator to break the two connecting plates when the positioning sleeve is installed, after the width of the operation opening is larger than the thickness between the isolation blades, the positioning sleeve can be sleeved on the isolation blades, and the installation difficulty can be effectively reduced due to the arrangement of the operation opening.

Preferably, the connecting plate is provided with a mounting hole, and the outer wall of the isolation blade is provided with a positioning column for positioning the mounting hole.

Through adopting above-mentioned technical scheme, when the position sleeve was established on keeping apart the blade, on the one hand through connecting plate and the laminating of keeping apart blade outer wall, on the other hand has avoided the axis of position sleeve on keeping apart the blade to sliding through the spacing installation of reference column to the mounting hole, ensures the stable installation of position sleeve and isolation blade.

Preferably, a plurality of reinforcing ribs are arranged between the supporting columns and the connecting plate.

Through adopting above-mentioned technical scheme, the strengthening rib of setting between support post and the connecting plate can increase the structural strength of support post, avoids support post and connecting rod to take place the phenomenon of buckling.

Preferably, the top end of the supporting column is in a semi-sphere shape.

Through adopting above-mentioned technical scheme, the contact area between the semicircle sphere on support post top can be avoided and the insulating part, avoids causing the too much interference fit of switch subassembly and insulating part.

Preferably, a positioning shaft is arranged between the two isolation blades, and screw rods for fixing the isolation blades are arranged at two ends of the positioning shaft.

Through adopting above-mentioned technical scheme, the relative fixed mounting between the blade is kept apart in the setting of screw rod spare, and on the other hand realizes being connected with the rotation of being qualified for the next round of competitions the awl conductor, and on the other hand location axle set up can avoid keeping apart the blade middle part and take place crooked setting, plays a purpose of connecting the drive pull rod simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the supporting member can calibrate the position of the isolation blade after the isolation blade deviates and rotates, so that the isolation blade can be always normally inserted into the contact seat, and long-time stable operation of equipment is ensured.

Drawings

Fig. 1 is a schematic structural view of a center positioning device of an isolation knife assembly of an embedded pole.

Fig. 2 is a schematic structural view of the knife switch assembly.

Fig. 3 is a schematic structural diagram of the embedded pole device for removing the insulating member.

Fig. 4 is a schematic structural view of the support member.

Figure 5 is a schematic view of an alternative arrangement of the support member.

Description of reference numerals: 1. an insulating member; 2. a bus-bar taper conductor; 3. an outgoing line cone conductor; 4. a contact seat; 5. a knife switch assembly; 6. isolating the blade; 7. driving the pull rod; 8. positioning a groove; 9. a support member; 10. a support column; 11. a positioning sleeve; 12. a connecting plate; 13. positioning a plate; 14. an operation port; 15. mounting holes; 16. a positioning column; 17. reinforcing ribs; 18. a guide slope; 19. a guide fillet; 20. a screw member; 21. positioning the shaft; 22. (ii) a 23. (ii) a 24. (ii) a 25. (ii) a 26. (ii) a 27. (ii) a 28. (ii) a 29. (ii) a .

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a center positioning device for a solid-sealed polar pole isolation knife assembly. Referring to fig. 1, the knife switch assembly is arranged in a solid-sealed pole device, the solid-sealed pole device comprises an insulating part 1 with a cavity, and the insulating part 1 is formed by pouring epoxy resin at one time. The inside generating line awl conductor 2 that is provided with in one side of insulating part 1 and the other end are provided with the awl conductor 3 of being qualified for the next round of competitions, and the 2 lower extremes of generating line awl conductor are provided with the contact seat 4 that is located the cavity, and the awl conductor 3 upper end of being qualified for the next round of competitions is provided with switch assembly 5, realizes being connected and the disconnection with the preferred contact seat 4 that is plate body form through the rotation of switch assembly 5, and then realizes generating line awl conductor 2 and the break-make of the awl conductor 3 of.

Referring to fig. 2, the knife switch assembly 5 includes two spaced apart blades 6 arranged in parallel and a driving rod 7 rotatably connected to the spaced apart blades 6. Two ends of the two isolation blades 6 are fixedly connected through a screw rod member 20, and a positioning shaft 21 is arranged at a position opposite to the middle lower part and used for positioning the distance between the two isolation blades 6. The locating shaft 21 is a rod-shaped body with smaller pipe diameters at two ends and larger pipe diameter at the middle part, when two isolating blades 6 are installed, the driving pull rod 7 can be sleeved at the middle part of the locating shaft 21, and then the two ends of the locating shaft 21 are inserted into through holes formed in the isolating blades 6, so that the primary locating of the isolating blades 6 is realized. And then the screw rod piece 20 is inserted and installed at the upper end and the lower end of the two isolating blades 6.

Referring to fig. 2 and 3, when the screw member 20 is inserted and fixed at the upper end of the isolation blade 6, the mounting position can be moved down relatively, so that a positioning groove 8 is formed in a space left at the top end of the isolation blade 6, the contact block 4 is inserted and connected with the screw member, and in order to better contact the isolation blade 6 with the contact block 4, a positioning bump is convexly arranged inside the isolation blade 6 to reduce heat generation points. When the screw member 20 is installed at the lower end of the isolation blade 6, the isolation blade 6 is directly sleeved on the plate body on the outgoing line conical conductor 3, and then the isolation blade 6 is fixed through the screw member 20, so that the two isolation blades 6 are rotatably connected with the outgoing line conical conductor 3. The screw member 20 can be fixed by matching a screw with a nut in the prior art, and a plurality of gaskets can be additionally arranged according to the installation requirement.

Referring to fig. 1 and 2, a supporting member 9 is further sleeved and fixed on the two isolation blades 6 for preventing the isolation blades 6 from excessively deviating during rotation, namely, preventing safety accidents caused by the fact that the positioning grooves 8 and the contact seat 4 cannot be directly spliced after being staggered. Wherein the supporting member 9 includes the position sleeve 11 that the cover was established on two isolation blade 6 to and set up the support post 10 on the terminal surface of position sleeve 11 both sides, after whole switch module 5 was installed on the awl conductor 3 of being qualified for the next round of competitions, there was not direct butt between support post 10 and the insulating part 1 inner wall, had the clearance of certain width, the width in this clearance keeps 1mm effect, the clearance width can not exceed the deflection distance after constant head tank 8 and the contact seat 4 stagger completely simultaneously. When the isolating blade 6 deflects, the top end of the supporting column 10 will directly abut against the inner wall of the insulating member 1, so that the isolating blade 6 is forced to stop deflecting, and the positioning groove 8 can still be directly inserted into the contact seat 4.

Referring to fig. 3 and 4, the supporting member 9 is preferably formed by injection molding of plastic at one time, the two ends of the positioning sleeve 11 in the middle of the supporting member 9 are provided with the connecting plates 12 bent in the same direction, the length of the connecting plates 12 is the same as the width of the isolating blade 6, so that the positioning plates 13 bent at the front end of the connecting plates 12 can abut against the other side wall of the isolating blade 6, and the two positioning plates 13 are arranged oppositely, i.e. can be buckled on the side wall of the isolating blade 6. Meanwhile, an operation opening 14 is formed between the positioning plates 13, fingers of an operator can be inserted into the operation opening 14, and the bending arrangement of the connecting plates 12 can be used for the operator to relatively open the two connecting plates 12, so that the supporting member 9 which can be in an opening state can be sleeved on the two isolating blades 6 at one time.

Referring to fig. 2 and 4, a mounting hole 15 is further formed in the connecting plate 12, a locating column 16 in a semi-spherical shape is convexly arranged on the isolation blade 6, and after the supporting piece 9 is sleeved on the isolation blade 6, the mounting hole 15 is matched with the locating column 16, and then the whole supporting piece 9 is relatively fixedly arranged with respect to the isolation blade 6. The supporting column 10 is integrally arranged on the outer wall of the connecting plate 12, and a plurality of reinforcing ribs 17 are further integrally arranged at the joint of the supporting column 10 and the connecting plate 12 and used for enhancing the structural strength of the supporting column 10 on the connecting plate 12. Meanwhile, the top end of the supporting column 10 is in a semi-sphere shape, point-surface contact between the supporting column 10 and the inner wall of the insulating part 1 is achieved, and the contact area is reduced so as to reduce safety risks.

For the mutual grafting of better cooperation constant head tank 8 and contact seat 4, refer to fig. 3, be provided with direction fillet 19 on the periphery wall of keeping apart blade 6, contact seat 4 front end is provided with direction inclined plane 18 simultaneously, and then increases the grafting scope of constant head tank 8 relatively, improves the connection range of switch subassembly 5, and then improves fault-tolerant rate between the two, reduces the safety risk.

On the other hand, referring to fig. 5, the supporting column 10 may be separated from the connecting plate 12 on the positioning sleeve 11, two mounting holes 15 may be disposed on the connecting plate 12, and a cylinder disposed at the end of the supporting column 10 may be inserted into the connecting plate 12 in an interference manner to achieve a fixed connection between the two, or may be relatively fixed by a threaded connection. The support column 10 is arranged in a split mode, so that the connection position of the support column 10 can be adjusted, two installation positions are arranged between the whole positioning sleeve 11 and the isolation blade 6, and the support column can be better matched with the inner wall of the insulating part 1 in a protruding mode.

The implementation principle of the center positioning device for the isolation knife assembly of the solid-sealed polar pole in the embodiment of the application is as follows: through the arrangement of the supporting columns 10, the situation that the positioning grooves 8 and the contact seat 4 are staggered relatively after the isolating blades 6 on the supporting pieces 9 are deflected excessively can be avoided, and then the stable and smooth inserting connection relation between the disconnecting link assembly 5 and the contact seat 4 is ensured.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a gu seal utmost point post and keep apart knife tackle spare central positioner which characterized in that: keep apart blade (6) including two fixed mounting and rotate to be connected drive pull rod (7) on keeping apart blade (6), two keep apart blade (6) upper end and be formed with constant head tank (8), two be provided with supporting piece (9) on keeping apart blade (6), supporting piece (9) both ends are provided with support post (10) that deflect when avoiding keeping apart blade (6) and rotate.

2. The center positioning device for the isolation knife assembly of the embedded pole according to claim 1, characterized in that: the supporting piece (9) comprises positioning sleeves (11) which are sleeved and fixed on the outer end faces of the two isolation blades (6), and the supporting columns (10) are arranged on the outer walls of the two sides of the positioning sleeves (11).

3. The center positioning device for the isolation knife assembly of the embedded pole according to claim 2, characterized in that: the connecting plates (12) at the two ends of the positioning sleeve (11) are arranged in a co-directional bending mode, the top ends of the two connecting plates (12) are oppositely provided with positioning plates (13), and an operation opening (14) is formed between the two positioning plates (13).

4. The center positioning device for the isolation knife assembly of the embedded pole according to claim 3, characterized in that: the connecting plate (12) is provided with a mounting hole (15), and the outer wall of the isolation blade (6) is provided with a positioning column (16) for positioning the mounting hole (15).

5. The center positioning device for the isolation knife assembly of the embedded pole according to claim 4, characterized in that: a plurality of reinforcing ribs (17) are arranged between the supporting columns (10) and the connecting plate (12).

6. The center positioning device for the isolation knife assembly of the embedded pole according to claim 5, characterized in that: the top end of the supporting column (10) is shaped like a hemisphere.

7. The center positioning device for the isolation knife assembly of the embedded pole according to claim 6, characterized in that: a positioning shaft (21) is arranged between the two isolation blades (6), and screw rod pieces (20) for fixing the isolation blades (6) are arranged at two ends of the positioning shaft.