CN213297603U

CN213297603U - Valve mechanism of high-voltage switch cabinet

Info

Publication number: CN213297603U
Application number: CN202021619452.5U
Authority: CN
Inventors: 赵逸; 赵海东; 王曙博; 赵周望; 赵建河
Original assignee: Shandong Kailai Electric Equipment Co ltd
Current assignee: Shandong Kailai Electric Equipment Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-28
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a high tension switchgear valve mechanism, including first sprocket, first sprocket meshing is connected with the chain, first sprocket right side is provided with second sprocket and second sprocket meshing connection on the chain, second sprocket side middle part is provided with the motor, the first bevel gear of first sprocket side center fixedly connected with, first bevel gear meshing connection is on second bevel gear, second bevel gear center fixedly connected with screw rod, threaded connection has first ball nut on the screw rod, first ball nut fixed connection is on first fixed block, the first valve of first fixed block right-hand member fixedly connected with. The utility model discloses in, realized the chain pivoted automation through being provided with the motor on the second sprocket, realized the vertical migration of valve through sprocket, chain, bevel gear, screw rod and ball nut's interact, improved the security when overhauing, be worth wideling popularize.

Description

Valve mechanism of high-voltage switch cabinet

Technical Field

The utility model relates to a valve mechanism field especially relates to high tension switchgear valve mechanism.

Background

The requirements on the technical performance, operation, use, overhaul and maintenance of the movable high-voltage switch gear in the power system are higher and higher, particularly the requirements on safety are higher, as a covering body of a charged body of the high-voltage switch gear, the accuracy and reliability of opening and closing of a valve are particularly important, the valve of the high-voltage switch gear is used for covering a static contact in the switch cabinet to prevent an electric shock accident caused by the fact that a worker touches the static contact when operating in the switch cabinet, when a PT component is pushed into the switch cabinet, the valve needs to be opened to expose the static contact for being plugged with a moving contact of the PT component, the valve mechanism actually functions to prevent the electric shock of the overhaul worker, a mechanism for shielding or opening the static contact is generally divided into an upper row and a lower row, the connection and the disconnection of the contact and the static contact are realized by pushing and pulling out of a circuit breaker to realize the disconnection and the connection of a circuit, because the static contact is often electrified, in order to prevent maintainer from touching the static contact carelessly when overhauing and thus cause the electric shock crisis personal safety, set up upper and lower valve of circuit breaker handcart interlock in the dead ahead of static contact.

Most of existing valve mechanisms are manually opened or closed valves, the mode can be completed only by matching at least two persons, one person controls opening or closing of the valves, and the other person completes drawing the car to be taken up to be pulled out, so that manpower resources are wasted, and safety factor is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a valve mechanism of a high-voltage switch cabinet.

In order to achieve the above purpose, the utility model adopts the following technical scheme: high tension switchgear valve mechanism, including first sprocket, first sprocket meshing connection is on the chain, first sprocket right side corresponds the position and is provided with second sprocket and second sprocket meshing connection on the chain, the first bevel gear of fixedly connected with of first sprocket side center department, first bevel gear meshing connection is on second bevel gear, fixedly connected with screw rod of second bevel gear center department, threaded connection has first ball nut on the screw rod, the first fixed block of first ball nut right side fixedly connected with, the corresponding position in first ball nut upper end is provided with second ball nut and second ball nut threaded connection on the screw rod, second ball nut right side fixedly connected with second fixed block.

As a further description of the above technical solution:

the first fixing block and the second fixing block penetrate through the fixing plate.

As a further description of the above technical solution:

both ends of the screw rod are fixedly connected inside the case.

As a further description of the above technical solution:

the right side of the first fixed block is fixedly connected with a first valve.

As a further description of the above technical solution:

and a second valve is fixedly connected to the right side of the second fixing block.

As a further description of the above technical solution:

the chain is provided with a supporting surface.

As a further description of the above technical solution:

and the middle part of the side edge of the second chain wheel is fixedly connected with a motor.

The utility model discloses following beneficial effect has:

1. in the utility model, a first chain wheel is arranged in a machine case, the first chain wheel is connected with a chain in a meshing way, a second chain wheel is arranged at the corresponding position on the right side of the first chain wheel, the second chain wheel is connected with the chain in a meshing way, a motor is arranged on a second bevel gear, a supporting surface is arranged on the chain, a first bevel gear is fixedly connected at the center of the side edge of the first chain wheel, the first bevel gear is connected with the second bevel gear in a meshing way, a screw rod is arranged at the center of the second bevel gear, a first ball nut and a second ball nut are respectively arranged on the screw rod, simultaneously, a first fixed block and a second fixed block are respectively fixedly connected at the right sides of the first ball nut and the second ball nut, a first valve and a second valve are respectively connected at the right sides of the first fixed block and the second fixed block, when the mechanism is pulled in, the second chain wheel drives the chain to rotate, the chain drives the chain wheel to rotate, and the chain wheel drives the first bevel gear to rotate, so that the second bevel gear is driven to rotate, the screw rod rotates along with the second bevel gear, the vertical movement is realized under the action of the first ball nut and the second ball nut, and the vertical movement of the valve is realized.

Drawings

Fig. 1 is a sectional view of the shutter mechanism of the high voltage switch cabinet according to the present invention;

fig. 2 is a front view of the valve mechanism of the high voltage switch cabinet according to the present invention;

fig. 3 is a side view of the motor in the shutter mechanism of the high voltage switch cabinet of the present invention.

Illustration of the drawings:

1. a first sprocket; 2. a chain; 3. a second sprocket; 4. a motor; 5. a first bevel gear; 6. a second bevel gear; 7. a screw; 8. a first ball nut; 9. a first fixed block; 10. a first shutter; 11. a second ball nut; 12. a second fixed block; 13. a second shutter; 14. a fixing plate; 15. a chassis; 16. a support surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a valve mechanism of a high-voltage switch cabinet comprises a first chain wheel 1, the first chain wheel 1 is meshed and connected with a chain 2, a second chain wheel 3 is arranged at the right side of the first chain wheel 1, the second chain wheel 3 is meshed and connected with the chain 2, a first bevel gear 5 is fixedly connected at the center of the side edge of the first chain wheel 1, the first bevel gear 5 is meshed and connected with a second bevel gear 6, a screw 7 is fixedly connected at the center of the second bevel gear 6, a first ball nut 8 is connected onto the screw 7 in a threaded manner, a first fixing block 9 is fixedly connected at the right side of the first ball nut 8, a second ball nut 11 is arranged at the corresponding position at the upper end of the first ball nut 8, the second ball nut 11 is connected onto the screw 7 in a threaded manner, a second fixing block 12 is fixedly connected onto the right side of the second ball nut 11, when a handcart needs to be pushed in or, the chain 2 drives the rotation of the first chain wheel 1, the first chain wheel 1 drives the rotation of the first bevel gear 5, the first bevel gear 5 drives the rotation of the second bevel gear 6, so that the screw 7 inside the second bevel gear 6 is driven to rotate, the first ball nut 8 and the second ball nut 11 on the screw 7 move in the vertical direction, and finally the first valve 10 and the second valve 13 are driven to move in the vertical direction, so that the manpower is greatly saved.

First fixed block 9 and second fixed block 12 all run through fixed plate 14, fixed plate 14 sets up inside quick-witted case 15, the equal fixed connection in quick-witted case 15 in screw rod 7 both ends, first valve 10 of first fixed block 9 right side fixedly connected with, second valve 13 of second fixed block 12 right side fixedly connected with, first valve 10 shelters from or opens the inside static contact of high tension switchgear with second valve 13, thereby prevent that the staff from touching the static contact when operating in the cubical switchboard and taking place the electric shock accident, be provided with holding surface 16 on chain 2, holding surface 16 fixes the handcart, 3 side middle part fixedly connected with motor 4 of second sprocket, thereby motor 4 drives the rotation of second sprocket 3 and has realized automaticly.

The working principle is as follows: when a person needs to push out for maintenance, the second chain wheel 3 is driven to rotate under the action of the motor 4, the second chain wheel 3 drives the chain 2 to rotate, the chain 2 drives the first chain wheel 1 to rotate, the first chain wheel 1 drives the first bevel gear 5 to rotate, the first bevel gear 5 drives the second bevel gear 6 to rotate, so as to drive the screw 7 inside the second bevel gear 6 to rotate, the first valve 10 and the second valve 13 are respectively driven to close under the action of the first ball nut 8 and the second ball nut 11, so as to shield the static contact and prevent the electric shock of the maintenance person, when the person pushes in the maintenance device, the motor 4 drives the second chain wheel 3 to rotate, the second chain wheel 3 drives the chain 2 to rotate, the chain 2 drives the first chain wheel 1 to rotate, the first chain wheel 1 drives the first bevel gear 5 to rotate, the first bevel gear 5 drives the second bevel gear 6 to rotate, so as to drive the screw 7 inside the second bevel gear 6 to rotate, the first valve 10 and the second valve 13 are respectively driven to be opened under the action of the first ball nut 8 and the second ball nut 11, so that the static contact and the head of the handcart are in contact power supply, and the safety performance is greatly improved while the automation is realized.

Finally, it should be noted that: 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. High tension switchgear valve mechanism, including first sprocket (1), its characterized in that: the first chain wheel (1) is meshed and connected with the chain (2), the second chain wheel (3) is arranged at the right side of the first chain wheel (1) in a corresponding position and the second chain wheel (3) is meshed and connected with the chain (2), a first bevel gear (5) is fixedly connected at the center of the side edge of the first chain wheel (1), the first bevel gear (5) is meshed and connected with a second bevel gear (6), the center of the second bevel gear (6) is fixedly connected with a screw rod (7), a first ball nut (8) is connected to the screw rod (7) in a threaded manner, a first fixed block (9) is fixedly connected to the right side of the first ball nut (8), a second ball nut (11) is arranged at the corresponding position of the upper end of the first ball nut (8), the second ball nut (11) is connected on the screw rod (7) in a threaded manner, and a second fixed block (12) is fixedly connected to the right side of the second ball nut (11).

2. The high tension switchgear shutter mechanism of claim 1, wherein: the first fixing block (9) and the second fixing block (12) penetrate through the fixing plate (14).

3. The high tension switchgear shutter mechanism of claim 1, wherein: both ends of the screw rod (7) are fixedly connected inside the case (15).

4. The high tension switchgear shutter mechanism of claim 1, wherein: the right side of the first fixing block (9) is fixedly connected with a first valve (10).

5. The high tension switchgear shutter mechanism of claim 1, wherein: and a second valve (13) is fixedly connected to the right side of the second fixing block (12).

6. The high tension switchgear shutter mechanism of claim 1, wherein: the chain (2) is provided with a supporting surface (16).

7. The high tension switchgear shutter mechanism of claim 1, wherein: and the middle part of the side edge of the second chain wheel (3) is fixedly connected with a motor (4).