CN213361143U

CN213361143U - Gate valve

Info

Publication number: CN213361143U
Application number: CN202021826675.9U
Authority: CN
Inventors: 黄海葱; 蔡华锋; 王双
Original assignee: Zhejiang Huibo Valve Technology Co ltd
Current assignee: Zhejiang Huibo Valve Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-04
Anticipated expiration: 2030-08-27

Abstract

A gate valve comprises a valve body, wherein a gate rod is arranged in the middle of the inside of the valve body, flashboards are installed on two sides of the bottom end of the gate rod, a lead screw is arranged on the outer side of the middle position of the gate rod, a valve cap is connected to the outer side of the lead screw, a lock cap is installed at the top of the valve cap, a hand wheel cover is connected to the top of the gate rod, a check nut is installed in the center of the inside of the hand wheel cover, a hand wheel is arranged at the bottom end of the inside of the hand wheel cover, a flat gasket is arranged at the joint of the inner side of the top of the valve body and the bottom end of the valve cap, copper clips are arranged on two sides of the joint of the middle position of the gate rod; the utility model discloses copper card, filler, steel washer and plain washer have been increased for leakproofness in the gate valve has obtained improving greatly, does not influence the removal of brake lever yet, has effectively improved the stability of valve body and the accuracy of removal.

Description

Gate valve

Technical Field

The utility model belongs to the valve body field specifically is a gate valve.

Background

The gate valve is an opening and closing part for controlling the flow and stop of water flow, can only be fully opened or fully closed, cannot adjust the water flow, is usually arranged in a main water drainage pipe, adopts a forced sealing mode in the main water drainage pipe, can only use an external force to move a gate rod, and is used as an auxiliary tool.

The existing gate valve has certain defects when in use, the sealing performance inside the valve body of the existing gate valve is still to be improved, the sealing performance of the valve body is reduced rapidly after long-time work, and the service life of the gate valve is influenced; the existing gate valve often uses a hand wheel to directly control the movement of a gate rod, so that the gate valve is inconvenient for operators to operate and influences the use efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gate valve, which effectively solves the problems that the sealing performance inside the valve body of the existing gate valve is still to be improved, the sealing performance of the valve body is reduced quickly after long-time work, and the service life of the gate valve is influenced; the utility model discloses the effectual current gate valve of having solved often uses the hand wheel direct control brake lever to remove, and the user of being not convenient for operates, influences the technical problem of availability factor.

The purpose of the utility model can be realized by the following technical scheme:

a gate valve comprises a valve body, wherein a gate rod is arranged in the middle of the inside of the valve body, flashboards are arranged on two sides of the bottom end of the gate rod, a lead screw is arranged on the outer side of the middle of the gate rod, a valve cap is connected to the outer side of the lead screw, a lock cap is arranged at the top of the valve cap, a hand wheel cover is connected to the top of the gate rod, and a locknut is arranged in the center of the inside of the hand wheel cover;

a hand wheel is arranged at the bottom end of the interior of the hand wheel cover, and a nameplate is arranged between the bottom of the locknut and the top surface of the inner side of the hand wheel;

the junction of valve body top inboard and valve cap bottom is provided with the plain washer, the intermediate position of brake lever and the junction both sides of valve cap all are provided with the copper checkpost, the brake lever is provided with the steel washer with the junction bottom of lock cap. And the bottom of the steel washer is connected with a filler.

As a further scheme of the utility model, the inside both sides of valve body all are provided with the go-between with the pipe connection department, and the inside one end of go-between is connected with the brake lever, and the flashboard setting is in the outside of go-between and brake lever junction.

As the utility model discloses a further scheme, the material of packing is asbestos packing, and the external diameter and the internal diameter of packing all are the same with the steel washer, and the lock cap is connected through the mode of joint with the brake lever outside and valve cap top.

As a further scheme of the utility model, the valve body inboard is provided with the application of nontoxic powder epoxy, and the bottom of brake lever is provided with vertical sealed the pad, and sealed pad and the laminating of the inboard bottom of valve body, and the inboard bottom of valve body is glossy protruding shape.

As a further scheme of the utility model, the brake lever outside is provided with the screw thread, and through the inboard swing joint of screw thread and valve cap, the intermediate position of brake lever and the top of copper card junction are provided with the round stopper.

As a further aspect of the utility model, the valve cap is connected with the outside top of valve body shell through the inside a plurality of bolt of outside shell, and the bottom of bolt is provided with lock nut.

The utility model has the advantages that:

the utility model has the advantages that by arranging the copper clip, the filler, the steel washer and the flat washer, when the gate valve works, the copper clip fixes the connection between the top of the valve cap and the steel washer, the filler seals the inner side of the top of the valve cap, the locking cap ensures the sealing performance of the outer side of the top of the valve cap, and the flat washer fills the connection gap between the bottom of the valve cap and the top of the valve body, thereby avoiding the pressure unbalance inside the valve cap;

through setting up brake lever, lead screw, valve cap, hand wheel lid and data plate, make the hand wheel together rotatory through anticlockwise rotation hand wheel lid, cooperation brake lever and valve cap between the screw thread for the brake lever is at the inboard rebound of lead screw, and the inboard bottom of valve body is kept away from to the bottom of brake lever, and rivers begin normal flow, have strengthened the control of user of service to the brake lever, have improved the accuracy of removing the brake lever.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an overall front sectional view of the present invention;

fig. 2 is a front cross-sectional view of the hand wheel cover of the present invention;

fig. 3 is a front cross-sectional view of the joint of the valve body, the valve cap and the locking cap of the present invention.

In the figure: 1. a valve body; 2. a shutter plate; 3. a brake lever; 4. a screw rod; 5. a bonnet; 6. a lock cap; 7. a hand wheel cover; 8. a locknut; 9. a hand wheel; 10. a nameplate; 11. a flat washer; 12. a copper clip; 13. a filler; 14. a steel washer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, a gate valve comprises a valve body 1, a gate rod 2 is arranged at the middle position inside the valve body 1, gate plates 3 are respectively arranged at two sides of the bottom end of the gate rod 2, a lead screw 4 is arranged at the outer side of the middle position of the gate rod 2, a valve cap 5 is connected to the outer side of the lead screw 4, a lock cap 6 is arranged at the top of the valve cap 5, a hand wheel cover 7 is connected to the top of the gate rod 2, and a locknut 8 is arranged at the center position inside the hand wheel cover 7;

a hand wheel 9 is arranged at the bottom end inside the hand wheel cover 7, a nameplate 10 is arranged between the bottom of the locknut 8 and the top surface of the inner side of the hand wheel 9, and the nameplate 10 is used for recording information such as the model, pressure, caliber and the like of the gate valve and helping a user to identify the gate valve;

a flat washer 11 is arranged at the joint of the inner side of the top of the valve body 1 and the bottom end of the valve cap 5, copper clamps 12 are arranged on the two sides of the joint of the middle position of the brake lever 2 and the valve cap 5, and a steel washer 14 is arranged at the bottom of the joint of the brake lever 2 and the lock cap 6. The bottom of the steel washer 14 is connected with a filler 13.

The inside both sides of valve body 1 all are provided with the go-between with the pipeline junction, and the inside one end of go-between is connected with brake lever 2, and flashboard 3 sets up the outside at go-between and brake lever 2 junction.

The material of packing 13 is asbestos packing, and the external diameter and the internal diameter of packing 13 all are the same with steel washer 14, and lock cap 6 is connected through the mode of joint with the brake lever 2 outside and valve cap 5 top, reinforcing lock cap 6 is to the fixed effect of valve cap 5.

The inboard nontoxic powder epoxy coating that is provided with of valve body 1, the bottom of brake lever 2 is provided with vertical sealed the pad, and sealed pad and the laminating of the inboard bottom of valve body 1, and the inboard bottom of valve body 1 is smooth protruding shape, avoids 1 bottom accumulation impurity of valve body to influence 1 work of valve body.

The 2 outsides of brake lever are provided with the screw thread, and through the inboard swing joint of screw thread and valve cap 5, the intermediate position of brake lever 2 is provided with the round stopper with the top of the 12 junctions of copper checkpost, and copper checkpost 12 is consolidated in easy to assemble copper checkpost 12 and brake lever 2's connection.

Valve cap 5 is connected with the outside top of 1 shell of valve body through the inside a plurality of bolt of outside shell, and the bottom of bolt is provided with lock nut, strengthens the fixed connection between valve body 1 and the valve cap 5, guarantees valve cap 5's job stabilization nature.

A gate valve, when using, the user rotates the hand wheel cover 7 counterclockwise to make the hand wheel 9 rotate together, the thread between the brake bar 2 and the valve cap 5 is matched, the brake bar 2 moves upwards at the inner side of the screw rod 4, the bottom of the brake bar 2 is far away from the bottom of the inner side of the valve body 1, the water flow starts to flow normally, the copper clip 12 fixes the connection between the top of the valve cap 5 and the steel gasket 14, the filler 13 seals the inner side of the top of the valve cap 5 to prevent the conveying medium of the valve cap 5 from leaking outwards, the locking cap 6 ensures the sealing performance of the outer side of the top of the valve cap 5, the flat gasket 11 fills the connection gap between the bottom of the valve cap 5 and the top of the valve body 1 to avoid the pressure imbalance inside the valve cap 5, the hand wheel cover 7 rotates together by rotating clockwise to make the hand wheel 9 rotate together by matching with the thread between the brake bar 2 and the valve cap 5, the brake bar 2 moves, the flashboards 3 on the two sides close the connecting rings inside the valve body 1, water flow stops flowing gradually, when a user needs to disassemble and maintain the gate valve, the locknut 8 is disassembled firstly, the hand wheel cover 7 and the hand wheel 9 are disassembled together, information on the nameplate 10 is observed, and then a proper tool and a replacement part are adopted to maintain the gate valve.

By arranging the copper clip 12, the packing 13, the steel washer 14 and the flat washer 11, when the gate valve works, the copper clip 12 fixes the connection between the top of the valve cap 5 and the steel washer 14, the packing 13 seals the inner side of the top of the valve cap 5, the locking cap 6 ensures the sealing property of the outer side of the top of the valve cap 5, and the flat washer 11 fills the connection gap between the bottom of the valve cap 5 and the top of the valve body 1, thereby avoiding the pressure imbalance inside the valve cap 5; through setting up brake lever 2, lead screw 4, valve cap 5, hand wheel 9, hand wheel lid 7 and data plate 10, make hand wheel 9 together rotatory through anticlockwise rotation hand wheel lid 7, screw thread between cooperation brake lever 2 and the valve cap 5 for brake lever 2 is at the inboard rebound of lead screw 4, and the inboard bottom of valve body 1 is kept away from to the bottom of brake lever 2, and rivers begin normal flow, have strengthened the control of user to brake lever 2, have improved the accuracy of removing brake lever 2.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gate valve, comprising a valve body (1), characterized in that: the brake lever is arranged at the middle position inside the valve body (1), the brake discs (3) are arranged on two sides of the bottom end of the brake lever (2), the lead screw (4) is arranged on the outer side of the middle position of the brake lever (2), the valve cap (5) is connected on the outer side of the lead screw (4), the lock cap (6) is arranged at the top of the valve cap (5), the hand wheel cover (7) is connected at the top of the brake lever (2), the check nut (8) is arranged at the center inside of the hand wheel cover (7), the hand wheel (9) is arranged at the bottom of the hand wheel cover (7), a nameplate (10) is arranged between the bottom of the check nut (8) and the top surface of the inner side of the hand wheel (9), a flat washer (11) is arranged at the joint of the inner side of the top of the valve body (1) and the bottom end of the valve cap (5), and two sides of the joint of the middle position of the brake, a steel washer (14) is arranged at the bottom of the joint of the brake rod (2) and the lock cap (6), and a filler (13) is connected to the bottom of the steel washer (14).

2. A gate valve according to claim 1, characterized in that the connection between the inner two sides of the valve body (1) and the pipeline is provided with a connecting ring, one end of the inner part of the connecting ring is connected with the gate rod (2), and the gate plate (3) is arranged outside the connection between the connecting ring and the gate rod (2).

3. The gate valve according to claim 1, characterized in that the packing (13) is made of asbestos packing, the outer diameter and the inner diameter of the packing (13) are the same as those of the steel washer (14), and the locking cap (6) is connected with the outer side of the gate rod (2) and the top of the valve cap (5) in a clamping manner.

4. The gate valve according to claim 1, characterized in that the inside of the valve body (1) is coated with non-toxic powder epoxy resin, the bottom of the gate rod (2) is provided with a vertical sealing gasket, the sealing gasket is attached to the bottom of the inside of the valve body (1), and the bottom of the inside of the valve body (1) is in a smooth convex shape.

5. The gate valve according to claim 1, characterized in that the outside of the gate rod (2) is provided with a thread, the thread is movably connected with the inside of the valve cap (5), and the top of the joint of the middle position of the gate rod (2) and the copper clamp (12) is provided with a circle of limiting block.

6. A gate valve according to claim 1, characterized in that the bonnet (5) is connected to the outer top of the housing of the valve body (1) by means of several bolts inside the outer housing, and that the bottom of the bolts is provided with locking nuts.