CN215119844U

CN215119844U - Lower lightning arrester handcart of high-voltage switch cabinet

Info

Publication number: CN215119844U
Application number: CN202121022082.1U
Authority: CN
Inventors: 朱明周
Original assignee: Shanghai Changhou Power Equipment Co ltd
Current assignee: Shanghai Changhou Power Equipment Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-10
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a high tension switchgear's lower arrester handcart, which comprises a vehicle rack, a plurality of connector insulators are installed to frame outer wall one side, connector insulator one end is connected with touches the arm, it is connected with the contact to touch arm one end, it has the insulator to touch the outer wall connection of arm keeping away from the contact, and insulator bottom and frame one side fixed connection, driving motor is installed to the inside bottom of frame, the driving motor output has the threaded rod through the coupling joint, threaded rod one end threaded connection has the sleeve, sleeve outer wall cover is equipped with the clamp, clamp outer wall one side is connected with the slider, and the frame is being provided with the spout that blocks each other with the slider near telescopic inside bottom, frame outer wall one side is provided with the opening, opening inner wall block has the roof, and roof one side and sleeve one end fixed connection. This kind of lower arrester handcart of high tension switchgear, simple structure is reasonable, and the modern design can effectively improve the protectiveness to high tension switchgear, and installs convenient accurate, has higher practical value.

Description

Lower lightning arrester handcart of high-voltage switch cabinet

Technical Field

The utility model relates to a high-voltage board electrical part technical field specifically is a lower arrester handcart of high tension switchgear.

Background

The draw-out type switch device of the draw-out type switch cabinet of the high-voltage switch cabinet of the power transformation and distribution substation is designed into a drawable handcart type, after the handcart is pushed into the switch cabinet to be positioned, a main bus in the cabinet can be connected with a load, and when the handcart is pulled out of the switch cabinet, the main bus is disconnected with the load. The handcart is adopted to facilitate the isolation and connection operation of the switch cabinet so as to facilitate the equipment maintenance, so the handcart is widely adopted.

In the use process of the existing lightning arrester handcart, the action is not sensitive enough, so that the electricity exposure phenomenon occurs in the high-voltage switch cabinet, and a fire disaster can be induced seriously; meanwhile, the existing arrester handcart is generally required to be manually calibrated and measured in the installation process, so that accurate alignment can be realized, the working mode is complex, and the working efficiency is low. Therefore, the handcart for the lower lightning arrester of the high-voltage switch cabinet is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a lower arrester handcart of a high-voltage switch cabinet, which comprises a frame, wherein one side of the outer wall of the frame is provided with a plurality of connector insulators, one end of the insulator of the connecting body is connected with a contact arm, one end of the contact arm is connected with a contact, the outer wall of the contact arm far away from the contact is connected with an insulator, the bottom end of the insulator is fixedly connected with one side of the frame, the bottom end in the frame is provided with a driving motor, the output end of the driving motor is connected with a threaded rod through a coupler, one end of the threaded rod is connected with a sleeve in a threaded manner, the outer wall of the sleeve is sleeved with a hoop, one side of the outer wall of the hoop is connected with a sliding block, and the frame is provided with a sliding groove which is clamped with the sliding block at the bottom end of the inner part close to the sleeve, an opening is arranged on one side of the outer wall of the frame, a top plate is clamped on the inner wall of the opening, and one side of the top plate is fixedly connected with one end of the sleeve.

As an optimal technical scheme of the utility model, frame top one side is connected with the wire, wire one end is connected with the circular connector.

As a preferred technical scheme of the utility model, the welding of frame bottom has the link, a plurality of pulleys are installed to the link bottom.

As a preferred technical scheme of the utility model, the card rail is all installed in the outer wall both sides that are close to the link to the frame, just card rail one side bonds and has the crash pad.

As a preferred technical scheme of the utility model, the inside one side of frame is provided with movable cavity, the inside top block of activity cavity has a pair of strip that pushes away, and is a pair of it all is through bolt fixedly connected with baffle to push away strip one side.

As a preferred technical scheme of the utility model, the frame is provided with the hollow groove in the one side that is close to pushing away the strip, just elastic limiting block is all installed to the both sides in hollow groove.

As an optimal technical scheme of the utility model, it has the handle all to weld on one side to push away the strip, just handle one end runs through hollow groove.

As an optimal technical scheme of the utility model, the outer housing is installed with the junction that touches the arm to the connector insulator, just insulating coating has been paintd to outer housing outer wall one side.

The utility model has the advantages that:

1. this kind of lower arrester handcart of high tension switchgear, through the arrester to the connection protection of touching arm and contact for this arrester handcart provides high-voltage power equipment overvoltage protection, and it is parallelly connected with protected equipment to take shelter from thunder. When the protected equipment operates under normal operating voltage, the lightning arrester does not act, i.e. is considered to be open circuit to ground. Once an overvoltage occurs and the insulation of the protected equipment is endangered, the lightning arrester acts immediately to guide high-voltage impact current to the ground, so that the voltage amplitude is limited and the insulation of the electrical equipment is protected. When the overvoltage disappears, the lightning arrester is quickly restored to the original state, so that the system can normally supply power;

2. according to the lower lightning arrester handcart of the high-voltage switch cabinet, the threaded rod is driven to rotate through the driving motor, the sleeve is enabled to move horizontally, the sleeve is enabled to effectively push the top plate horizontally through the fixing effect of the clamp on the sleeve, and the sleeve is prevented from being deviated when moving horizontally by utilizing the clamping relation between the sliding block and the sliding groove, so that accurate alignment work is achieved, a manual measurement mode is replaced, and the installation work efficiency is improved;

3. this kind of high tension switchgear's lower arrester handcart, through the electric connection of wire for aviation plug has realized the test usage of secondary connection, through the guide effect of card rail, avoids this handcart to take place the skew at the in-process of installation, through the effect of shielding of baffle, makes this handcart after the installation, realizes keeping away dirt function, through the cushioning effect of elasticity stopper, avoids pushing away a collision impaired. The utility model has the advantages of simple and reasonable structure, the modern design can effectively improve the protectiveness to the high tension switchgear, and installs convenient accurate, has higher practical value.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of a lower arrester handcart of a high-voltage switch cabinet of the utility model;

fig. 2 is a rear view of a lower arrester handcart of a high-voltage switch cabinet of the utility model;

fig. 3 is a partial cross-sectional view of the lower arrester handcart of the high-voltage switch cabinet.

In the figure: 1. a frame; 2. a connector insulator; 3. an outer casing; 4. a contact arm; 5. a contact; 6. a lightning arrester; 7. clamping a rail; 8. a connecting frame; 9. a pulley; 10. pushing the strips; 11. an aviation plug; 12. a wire; 13. a baffle plate; 14. a hollow groove; 15. a handle; 16. a top plate; 17. a drive motor; 18. a threaded rod; 19. a sleeve; 20. clamping a hoop; 21. a slide block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-3, the utility model relates to a lower arrester handcart of a high-voltage switch cabinet, which comprises a frame 1, a plurality of connector insulators 2 are arranged on one side of the outer wall of the frame 1, one end of each connector insulator 2 is connected with a contact arm 4, one end of each contact arm 4 is connected with a contact 5, the outer wall of each contact arm 4 far away from the contact 5 is connected with an insulator 6, the bottom end of the insulator 6 is fixedly connected with one side of the frame 1, the bottom end in the frame 1 is provided with a driving motor 17, the output end of the driving motor 17 is connected with a threaded rod 18 through a coupler, one end of the threaded rod 18 is in threaded connection with a sleeve 19, the outer wall of the sleeve 19 is sleeved with a hoop 20, one side of the outer wall of the hoop 20 is connected with a slide block 21, and the frame 1 is provided with a sliding chute which is clamped with the sliding block 21 at the bottom end of the inner part close to the sleeve 19, an opening is arranged at one side of the outer wall of the frame 1, a top plate 16 is clamped at the inner wall of the opening, and one side of the top plate 16 is fixedly connected with one end of the sleeve 19.

Wherein, frame 1 top one side is connected with wire 12, and wire 12 one end is connected with aviation plug 11, through the electric connection of wire 12 for aviation plug 11 has realized the test usage of secondary connection.

Wherein, the welding of 1 bottom of frame has link 8, and a plurality of pulleys 9 are installed to link 8 bottom, through the rotation of pulley 9 for this handcart is when installing high tension switchgear, and is more convenient.

Wherein, the card rail 7 is all installed in frame 1 outer wall both sides near link 8, and the crashproof pad that bonds in card rail 7 one side, through the guide effect of card rail 7, avoids this handcart skew taking place at the in-process of installation.

Wherein, the inside one side of frame 1 is provided with movable cavity, and the inside top block of movable cavity has a pair of strip 10 that pushes away, and a pair of strip 10 one side that pushes away all has a baffle 13 through bolt fixedly connected with, through the effect of shielding of baffle 13 for this handcart after the installation, the realization is kept away the dirt function.

Wherein, frame 1 is provided with hollow groove 14 in the one side that is close to pushing away strip 10, and the both sides of hollow groove 14 all install the elasticity stopper, and through the cushioning effect of elasticity stopper, avoid pushing away strip 10 and bump impaired.

Wherein, it has handle 15 all to weld in strip 10 one side to push away, and handle 15 one end runs through hollow groove 14, through stirring handle 15 for it is more convenient to remove baffle 13.

Wherein, outer housing 3 is installed with the junction of touching arm 4 to connector insulator 2, and 3 outer wall one sides of outer housing have paintd insulating coating, through outer housing 3 protection, has improved connector insulator 2 and has touched the security of being connected between the arm 4.

The working principle is as follows: when the lower arrester handcart of the high-voltage switch cabinet is used, the arrester handcart is firstly tested, after the detection is normal, the arrester handcart is aligned to a mounting point of the high-voltage switch cabinet, the contact arm 4 and the contact 5 are protected through the connection of the arrester 6, so that the arrester handcart provides overvoltage protection for high-voltage power equipment, and the arrester 6 is connected with protected equipment in parallel. When the protected equipment is operating at normal operating voltage, the arrester 6 is not active, i.e. is considered open circuit to ground. In case of an overvoltage that would endanger the insulation of the equipment to be protected, the arrester 6 acts immediately, directing the high voltage surge current to the ground, thus limiting the voltage amplitude and protecting the insulation of the electrical equipment. After overvoltage disappears, the lightning arrester 6 is rapidly recovered to enable the system to normally supply power, the lower lightning arrester 6 handcart of the high-voltage switch cabinet drives the threaded rod 18 to rotate through the driving motor 17, so that the sleeve 19 horizontally moves, then the sleeve 19 is effectively horizontally pushed to the top plate 16 through the fixing effect of the clamp 20 on the sleeve 19, the sleeve 19 is prevented from deviating during horizontal movement by utilizing the clamping relation between the sliding block 21 and the sliding groove, therefore, accurate assembling work is realized, the manual measurement mode is replaced, the installation working efficiency is also improved, the lower lightning arrester handcart of the high-voltage switch cabinet realizes the testing purpose of secondary connection through the electrical connection of the lead 12, the handcart is prevented from deviating in the installation process through the guiding effect of the clamping rail 7, through the shielding effect of baffle 13 for this handcart after the installation, realize keeping away dirt function, through the cushioning effect of elasticity stopper, avoid pushing away strip 10 and bump impaired. The utility model has the advantages of simple and reasonable structure, the modern design can effectively improve the protectiveness to high tension switchgear, and installs convenient accurate, has higher practical value

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The lower arrester handcart of the high-voltage switch cabinet comprises a frame (1) and is characterized in that a plurality of connector insulators (2) are installed on one side of the outer wall of the frame (1), one ends of the connector insulators (2) are connected with a contact arm (4), one end of the contact arm (4) is connected with a contact (5), the outer wall of the contact arm (4) far away from the contact (5) is connected with an insulator (6), the bottom end of the insulator (6) is fixedly connected with one side of the frame (1), a driving motor (17) is installed at the bottom end inside the frame (1), the output end of the driving motor (17) is connected with a threaded rod (18) through a coupler, one end of the threaded rod (18) is connected with a sleeve (19) in a threaded manner, a clamp (20) is sleeved on the outer wall of the sleeve (19), and a sliding block (21) is connected to one side of the outer wall of the clamp (20), and the bottom end of the inner part of the frame (1) close to the sleeve (19) is provided with a sliding groove which is clamped with the sliding block (21), one side of the outer wall of the frame (1) is provided with an opening, the inner wall of the opening is clamped with a top plate (16), and one side of the top plate (16) is fixedly connected with one end of the sleeve (19).

2. The lower lightning arrester handcart of high-voltage switch cabinet according to claim 1, characterized in that, frame (1) top one side is connected with wire (12), wire (12) one end is connected with aviation plug (11).

3. The lower arrester handcart of high-voltage switch cabinet according to claim 1, characterized in that a connecting frame (8) is welded at the bottom end of the frame (1), and a plurality of pulleys (9) are installed at the bottom end of the connecting frame (8).

4. The lower arrester handcart of high-voltage switch cabinet according to claim 1 or 3, characterized in that the frame (1) is provided with clamping rails (7) on both sides of the outer wall close to the connecting frame (8), and one side of the clamping rails (7) is bonded with an anti-collision pad.

5. The lower arrester handcart of high-voltage switch cabinet according to claim 1, characterized in that a movable cavity is arranged on one side inside the frame (1), a pair of push bars (10) are clamped on the top end inside the movable cavity, and a baffle (13) is fixedly connected to one side of each push bar (10) through a bolt.

6. The lower arrester handcart of high-voltage switch cabinet according to claim 1 or 5, characterized in that the frame (1) is provided with a hollow groove (14) at one side close to the push bar (10), and elastic limit blocks are installed at both sides of the hollow groove (14).

7. The lower arrester handcart of high-voltage switch cabinet according to claim 5, characterized in that a handle (15) is welded on one side of the push bar (10), and one end of the handle (15) penetrates through the hollow groove (14).

8. The lower arrester handcart of a high-voltage switch cabinet according to claim 1, characterized in that the outer housing (3) is installed at the joint of the connector insulator (2) and the contact arm (4), and an insulating coating is coated on one side of the outer wall of the outer housing (3).