CN112103120B

CN112103120B - Center positioning device for solid-sealed pole isolation knife assembly

Info

Publication number: CN112103120B
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: 2023-06-27
Anticipated expiration: 2040-09-02
Also published as: CN112103120A

Abstract

The utility model relates to a solid utmost point post keeps apart knife tackle spare central authorities positioner that seals, include two fixed mounting's isolation blade and rotate the drive pull rod of connecting on the isolation blade, two isolation blade upper end is formed with the constant head tank, two be provided with the support piece on the isolation blade, the support piece both ends are provided with the support post that deflects when avoiding the isolation blade to rotate. The utility model has the advantages of can take place the skew through the setting of support piece and rotate the back, carry out the effect of calibration to the isolation blade position, ensure that the isolation blade can normally peg graft with the contact seat all the time, and then ensure the long-time steady operation's of equipment effect.

Description

Center positioning device for solid-sealed pole isolation knife assembly

Technical Field

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

Background

The solid insulation cabinet is used for controlling the power transmission to be opened and closed in the power distribution system, an insulation shell is arranged in the insulation cabinet, a vacuum switch and an isolation grounding switch shell are arranged in the shell, an interface for incoming line and outgoing line is further arranged on the shell, and then bus connection is needed between every two solid insulation cabinets.

The Chinese patent with the bulletin number of CN205004671U discloses a switch device, which comprises a cabinet body, wherein a load switch body is fixed at the upper part of the cabinet body, an isolated grounding switch operating mechanism, a load switch operating mechanism and a cabinet interlocking device are arranged on the load switch body, and an upper wire outlet seat, a solid insulation system, a vacuum arc extinguishing chamber, a wire outlet sleeve seat and a cable interface are arranged at the rear part of the load switch body and are fixedly sealed and poured.

Aiming at the related technology, the switch operating mechanism is made into a disconnecting link type three-position switch, the contact between the disconnecting link of the three-position switch and the isolation static contact is affected by electric force, the disconnecting link can deviate from the original position for a long time, the contact between the disconnecting link and the contact is affected, the resistance is increased, and the heating of a conductive loop exceeds the standard, so that accidents occur.

Disclosure of Invention

In order to reduce the possibility of disconnecting link deflection, the application provides a central positioning device of a solid-sealed pole isolation knife assembly.

The application provides a solid seal utmost point post keeps apart knife tackle spare center positioning device adopts following technical scheme: the utility model provides a solid utmost point post keeps apart knife tackle spare central positioner, includes two fixed mounting's isolation blade and rotates the drive pull rod of connecting on the isolation blade, two isolation blade upper end is formed with the constant head tank, two be provided with the support piece on the isolation blade, support piece both ends are provided with the support post that avoids the isolation blade to deflect when rotating.

Through adopting above-mentioned technical scheme, when the installation of isolation blade appears becoming flexible, perhaps when isolation blade length overlength, isolation blade top takes place the skew easily, therefore after isolation blade top position takes place the skew, also can take place the skew relatively with the relative position of isolation static contact, therefore after setting up a support piece on the isolation blade in the switch subassembly, fix a position through the support post at support piece both ends, after isolation blade takes place the skew owing to various circumstances, the support piece is spacing back by the insulating part, isolation blade skew state is forced to stop, therefore can ensure that isolation blade and isolation static contact still can stable and smooth grafting, avoid isolation blade top to burn out, the setting of support piece has ensured that whole solid sealed polar pole device has higher life and safety and stability.

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

Through adopting above-mentioned technical scheme, the support piece can overlap after two isolation blades are fixed relatively and establish, reduces the installation degree of difficulty of support piece, and the support post setting can be together set up on the both sides inner wall of insulating part along with the installation of switch subassembly after the spacer sleeve outer wall simultaneously.

Preferably, the connecting plates at two ends of the positioning sleeve are bent in the same direction, positioning plates are oppositely arranged at the top ends of the two connecting plates, and an operation port is formed between the two positioning plates.

Through adopting above-mentioned technical scheme, after the connecting plate at locating sleeve both ends is buckled in the syntropy for on the laminating isolation blade outer wall that whole locating sleeve can be better, and the locating plate through the top setting can the lock joint at isolation blade's opposite side, ensures that whole locating sleeve can overlap to establish the laminating on isolation blade's outer wall, ensures preliminary stable connection. On the other hand, the operation port between the positioning plates can be formed so that an operator can break off the two connecting plates when installing the positioning sleeve, and after the width of the operation port 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 port.

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

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

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

By adopting the technical scheme, the structural strength of the support column can be increased by the reinforcing ribs arranged between the support column and the connecting plate, and the phenomenon that the support column and the connecting rod are bent is avoided.

Preferably, the top end of the supporting column is in a semicircle shape.

By adopting the technical scheme, the contact area between the semi-spherical supporting column top and the insulating piece can be avoided, and excessive interference fit between the disconnecting link assembly and the insulating piece is avoided.

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

Through adopting above-mentioned technical scheme, the setting of screw realizes the relative fixed installation between the isolation blade, on the other hand realizes the rotation connection with the awl conductor of being qualified for the next round of competitions, and on the other hand setting up of locating shaft can avoid the isolation blade middle part to take place crooked setting, plays the purpose of a connection drive pull rod simultaneously.

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

1. through setting up of support piece can take place the skew rotation back at the isolation blade, carry out the effect of calibration to isolation blade position, ensure that the isolation blade can normally peg graft with the contact seat all the time, and then ensure the long-time steady operation of equipment.

Drawings

Fig. 1 is a schematic structural view of a center positioning device for an isolated pole assembly.

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

Fig. 3 is a schematic view of the structure of the encapsulated pole device with insulation removed.

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

Fig. 5 is a schematic structural view of another alternative of the support.

Reference numerals illustrate: 1. an insulating member; 2. a bus cone conductor; 3. a cone conductor; 4. a contact base; 5. a knife switch assembly; 6. isolating the blades; 7. driving the pull rod; 8. a positioning groove; 9. a support; 10. a support column; 11. a positioning sleeve; 12. a connecting plate; 13. a positioning plate; 14. an operation port; 15. a mounting hole; 16. positioning columns; 17. reinforcing ribs; 18. a guide slope; 19. guiding fillets; 20. a screw member; 21. and positioning the shaft.

Detailed Description

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

The embodiment of the application discloses a solid-sealed pole isolation knife assembly center positioning device. Referring to fig. 1, the knife switch assembly is arranged in a solid sealed pole device, the solid sealed pole comprises an insulating piece 1 with a cavity, and the insulating piece 1 is formed by casting epoxy resin at one time. One side of the insulating piece 1 is internally provided with a bus cone conductor 2, the other end of the insulating piece is provided with a wire outlet cone conductor 3, the lower end of the bus cone conductor 2 is provided with a contact seat 4 positioned in the cavity, the upper end of the wire outlet cone conductor 3 is provided with a disconnecting link assembly 5, connection and disconnection with the contact seat 4 which is preferably in a plate shape are realized through rotation of the disconnecting link assembly 5, and then connection and disconnection of the bus cone conductor 2 and the wire outlet cone conductor 3 are realized.

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

Referring to fig. 2 and 3, when the upper end of the isolating blade 6 is fixedly inserted, the installation position of the screw member 20 can be moved downwards relatively, so that a space left at the top end of the isolating blade 6 forms a positioning groove 8, the part is used for inserting the contact seat 4, and a positioning convex point is convexly arranged inside the isolating blade 6 for better contact between the isolating blade 6 and the contact seat 4, so that the heat generating point is reduced. When the screw rod 20 is installed at the lower end of the isolating blades 6, the isolating blades 6 are directly sleeved on the plate body on the wire outlet cone conductor 3, and then the screw rod 20 is used for fixing, so that the two isolating blades 6 are rotationally connected with the wire outlet cone conductor 3. The screw rod 20 can be fixed by adopting the matching of the screw rod and the 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 isolating blades 6, so as to avoid excessive deflection of the isolating blades 6 during rotation, that is, to avoid safety accidents caused by incapability of direct plugging after the positioning slots 8 are staggered with the contact bases 4. The supporting piece 9 comprises a positioning sleeve 11 sleeved on the two isolation blades 6 and supporting columns 10 arranged on the end faces of the two sides of the positioning sleeve 11, after the whole disconnecting link assembly 5 is installed on the wire outlet cone conductor 3, the supporting columns 10 are not directly abutted with the inner wall of the insulating piece 1, a gap with a certain width is formed, the width of the gap is kept to be 1mm, and meanwhile, the width of the gap cannot exceed the deflection distance after the positioning groove 8 and the contact seat 4 are completely staggered. When the isolating blade 6 deflects, the top end of the supporting column 10 directly abuts against the inner wall of the insulating part 1, so that the isolating blade 6 is forced to stop deflecting, and the positioning groove 8 can still be used for the contact base 4 to directly insert.

Referring to fig. 3 and 4, the supporting member 9 is preferably formed by plastic disposable injection molding, two ends of the positioning sleeve 11 in the middle of the supporting member 9 are provided with connecting plates 12 bent in the same direction, the length of each connecting plate 12 is the same as the width of the isolating blade 6, so that the positioning plate 13 which is bent at the front end of each connecting plate 12 can be abutted against the other side wall of the isolating blade 6, and the two positioning plates 13 are arranged oppositely, namely can be fastened on the side wall of the isolating blade 6. Meanwhile, an operation opening 14 is formed between the positioning plates 13, the operation opening 14 can be used for inserting fingers of an operator, and meanwhile, the bending arrangement of the connecting plates 12 can be used for enabling the operator to break off the two connecting plates 12 relatively, so that the supporting piece 9 which can be in a breaking-off state is sleeved on the two isolation blades 6 at one time.

Referring to fig. 2 and 4, a mounting hole 15 is further formed in the connecting plate 12, a semicircular positioning column 16 is protruding above the isolating blade 6, and after the supporting member 9 is sleeved on the isolating blade 6, the whole supporting member 9 and the isolating blade 6 are relatively fixed after the mounting hole 15 is matched with the positioning column 16. The support column 10 is integrally arranged on the outer wall of the connecting plate 12, and a plurality of reinforcing ribs 17 are integrally arranged at the joint of the support column 10 and the connecting plate 12 for enhancing the structural strength of the support column 10 on the connecting plate 12. Meanwhile, the top ends of the supporting columns 10 are in a semicircular shape, so that the supporting columns 10 are in point-to-surface contact with the inner wall of the insulator 1, and the contact area is reduced to reduce the safety risk.

For better cooperation constant head tank 8 and contact seat 4 peg graft each other, refer to fig. 3, be provided with the direction fillet 19 on the periphery wall of isolation blade 6, contact seat 4 front end is provided with the direction inclined plane 18 simultaneously, and then increases the grafting scope of constant head tank 8 relatively, improves the connection scope of switch subassembly 5, and then improves the fault tolerance between the two, reduces the security risk.

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

The implementation principle of the center positioning device of the solid-sealed pole isolation knife assembly is as follows: the positioning groove 8 and the contact seat 4 are prevented from being staggered relatively after the isolating blade 6 on the supporting piece 9 is excessively deflected by the arrangement of the supporting column 10, so that the stable and smooth plug-in connection between the disconnecting link assembly 5 and the contact seat 4 is ensured.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a solid utmost point post keeps apart knife tackle spare center positioning device which characterized in that: the device comprises two isolation blades (6) fixedly installed and a driving pull rod (7) rotatably connected to the isolation blades (6), wherein positioning grooves (8) are formed at the upper ends of the two isolation blades (6), supporting pieces (9) are arranged on the two isolation blades (6), and supporting columns (10) for preventing the isolation blades (6) from deflecting during rotation are arranged at the two ends of each supporting piece (9);

the supporting piece (9) comprises a positioning sleeve (11) sleeved and fixed on the outer end surfaces of the two isolation blades (6), and the supporting columns (10) are arranged on the outer walls of the two sides of the positioning sleeve (11);

connecting plates (12) at two ends of the positioning sleeve (11) are bent in the same direction, positioning plates (13) are oppositely arranged at the top ends of the two connecting plates (12), and an operation opening (14) is formed between the two positioning plates (13);

the connecting plate (12) is provided with a mounting hole (15), and the outer wall of the isolating blade (6) is provided with a positioning column (16) for positioning the mounting hole (15).

2. The center positioning device of the solid-sealed pole isolation knife assembly of claim 1, wherein: a plurality of reinforcing ribs (17) are arranged between the supporting column (10) and the connecting plate (12).

3. The center positioning device of the solid-sealed pole isolation knife assembly of claim 2, wherein: the top end of the supporting column (10) is in a semicircle shape.

4. A center positioning device for an encapsulated pole isolation knife assembly as claimed in claim 3, wherein: 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.