CN215596418U

CN215596418U - Gate valve convenient to change disk seat

Info

Publication number: CN215596418U
Application number: CN202121138909.5U
Authority: CN
Inventors: 黄吴平
Original assignee: Quanzhou Elite Valve Industry Co ltd
Current assignee: Quanzhou Elite Valve Industry Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-21
Anticipated expiration: 2031-05-26

Abstract

The utility model belongs to the technical field of gate valves, and particularly relates to a gate valve convenient for replacing a valve seat. This gate valve convenient to change disk seat, lower surface through setting up the arc lid is provided with just dismounting device, and just dismounting device is including sealed the pad, the sealed upper surface that fills up is connected with the lower fixed surface of arc lid, reached be convenient for to the dismantlement of disk seat with trading, it is the integrated into one piece mostly to have solved current gate valve and disk seat, but a lot of gate valves all can't use because of the damage of disk seat, and do not have special instrument to be very difficult to take out the disk seat of damage, lead to a lot of users can directly follow the gate valve of trading after the disk seat damages, certain economic loss's problem has been caused.

Description

Gate valve convenient to change disk seat

Technical Field

The utility model relates to the technical field of gate valves, in particular to a gate valve convenient for replacing a valve seat.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate valve seals through disk seat and flashboard contact, and the sealed face can build up welding metal material in order to increase the wearability usually, and the flashboard has rigidity flashboard and elasticity flashboard, and according to the difference of flashboard, the gate valve divide into rigidity gate valve and elasticity gate valve.

Most of existing gate valves and valve seats are all integrally formed, but many gate valves can not be used due to the damage of the valve seats, and the damaged valve seats are very difficult to take out without special tools, so that a lot of users can directly replace the gate valves after the valve seats are damaged, and certain economic loss is caused.

SUMMERY OF THE UTILITY MODEL

Based on the technical problems that most existing gate valves and valve seats are integrally formed, but many gate valves cannot be used due to damage of the valve seats, and the damaged valve seats are very difficult to take out without special tools, so that a lot of users can directly replace the gate valves after the valve seats are damaged, and certain economic losses are caused.

The utility model provides a gate valve convenient for replacing a valve seat, which comprises a valve body, wherein an arc-shaped opening is formed in the outer surface of the valve body, fixed blocks are fixedly connected to the outer surface of the valve body, first threaded holes are formed in the upper surfaces of the two fixed blocks, and an arc-shaped cover is movably clamped on the inner wall of the arc-shaped opening;

the lower surface of the arc-shaped cover is provided with a convenient dismounting device which comprises a sealing gasket, and the upper surface of the sealing gasket is fixedly connected with the lower surface of the arc-shaped cover.

Preferably, the outer surface of the sealing gasket is in compression contact with the inner wall of the arc-shaped opening, the upper surfaces of the arc-shaped covers are fixedly connected with sealing plates, and the lower surfaces of the two sealing plates are in compression contact with the upper surfaces of the fixing blocks;

through above-mentioned technical scheme, the arc mouth is double-deck, upper strata and arc lid joint, lower floor and sealed extrusion contact of filling up.

Preferably, the upper surfaces of the two sealing plates are both provided with second threaded holes, and the inner walls of the two second threaded holes are both in threaded connection with threaded rods;

through above-mentioned technical scheme, the cooperation of second screw hole and threaded rod is used, plays the sealed effect of making the closing plate hug closely.

Preferably, one end surfaces of the two threaded rods are in threaded connection with the inner wall of the first threaded hole, and one end surfaces of the two threaded rods are fixedly connected with hand screwing plates;

through above-mentioned technical scheme, the hand is twisted the dish and is played the effect of being convenient for rotate the threaded rod.

Preferably, the upper surface of the arc-shaped cover is fixedly communicated with a valve seat, the inner wall of the valve seat is movably sleeved with a valve rod, and the surface of one end of the valve rod is fixedly connected with a turntable;

through above-mentioned technical scheme, the carousel plays the effect of being convenient for rotate the valve rod.

Preferably, the other end surface of the valve rod penetrates through and extends into the valve body, a valve plate is fixedly connected to the other end surface of the valve rod, and the outer surface of the valve plate is in sealing contact with the inner wall of the valve body;

through above-mentioned technical scheme, the valve rod drives the valve plate and rotates, plays the effect that the fluid flows in the control valve body.

The beneficial effects of the utility model are as follows:

just, dismounting device is provided with through the lower surface that sets up the arc lid, and just dismounting device is including sealed the pad, the upper surface that seals up is connected with the lower fixed surface of arc lid, reached be convenient for to the dismantlement of disk seat with trade, it is all integrated into one piece mostly to have solved current gate valve and disk seat, but a lot of gate valves all can't use because the damage of disk seat, and do not have special instrument to be very difficult to take out the disk seat of damage, lead to a lot of users can directly with trading the gate valve after the disk seat damages, certain economic loss's problem has been caused.

Drawings

FIG. 1 is a schematic view of a gate valve to facilitate replacement of the valve seat;

FIG. 2 is a right side sectional view of a gate valve body structure for facilitating replacement of a valve seat;

FIG. 3 is an exploded view of the valve body structure of a gate valve for easy replacement of the valve seat;

fig. 4 is an enlarged view of a structure a of the gate valve in fig. 3 for facilitating replacement of the valve seat.

In the figure: 1. a valve body; 2. an arc-shaped opening; 3. a fixed block; 4. a first threaded hole; 5. an arc-shaped cover; 6. a gasket; 61. a sealing plate; 62. a second threaded hole; 63. a threaded rod; 64. screwing the plate by hand; 65. a valve seat; 66. a valve stem; 67. a turntable; 68. a valve plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the gate valve convenient for replacing the valve seat comprises a valve body 1, wherein an arc-shaped opening 2 is formed in the outer surface of the valve body 1, fixed blocks 3 are fixedly connected to the outer surface of the valve body 1, first threaded holes 4 are formed in the upper surfaces of the two fixed blocks 3, and an arc-shaped cover 5 is movably clamped on the inner wall of the arc-shaped opening 2;

the lower surface of the arc-shaped cover 5 is provided with a convenient dismounting device which comprises a sealing gasket 6, and the upper surface of the sealing gasket 6 is fixedly connected with the lower surface of the arc-shaped cover 5.

Further, the surface of sealed 6 of filling up and the inner wall extrusion contact of arc mouth 2, the equal fixedly connected with closing plate 61 of upper surface of arc lid 5, the lower surface of two closing plates 61 all with the upper surface extrusion contact of fixed block 3, arc mouth 2 is the bilayer, upper strata and 5 joints of arc lid, lower floor and sealed 6 sealed extrusion contact of filling up.

Further, second screw hole 62 has all been seted up to the upper surface of two closing plates 61, and the equal threaded connection of the inner wall of two second screw holes 62 has threaded rod 63, and second screw hole 62 is used with threaded rod 63's cooperation, plays the effect that makes closing plate 61 hug closely sealedly.

Further, one end surfaces of the two threaded rods 63 are in threaded connection with the inner wall of the first threaded hole 4, one end surfaces of the two threaded rods 63 are fixedly connected with hand screwing plates 64, and the hand screwing plates 64 play a role in facilitating rotation of the threaded rods 63.

Further, the upper surface of the arc-shaped cover 5 is fixedly communicated with a valve seat 65, a valve rod 66 is movably sleeved on the inner wall of the valve seat 65, a rotary disc 67 is fixedly connected to the surface of one end of the valve rod 66, and the rotary disc 67 plays a role in facilitating rotation of the valve rod 66.

Further, the other end surface of valve rod 66 runs through and extends to inside the valve body 1, and the other end surface fixed connection of valve rod 66 has valve plate 68, and the surface of valve plate 68 and the inner wall sealing contact of valve body 1, valve rod 66 drive valve plate 68 and rotate, play the effect that the fluid flows in the control valve body 1.

Just, be provided with dismounting device through the lower surface that sets up arc lid 5, and just dismounting device is including sealed 6 of filling up, the upper surface that fills up 6 of sealing is connected with the lower fixed surface of arc lid 5, reached and be convenient for to the dismantlement of disk seat 65 with trade, it is integrated into one piece mostly to have solved current gate valve and disk seat 65, but a lot of gate valves all can't use because of the damage of disk seat 65, and do not have special instrument to be very difficult to take out the disk seat 65 of damage, lead to a lot of users can directly follow the gate valve of trading after disk seat 65 damages, certain economic loss's problem has been caused.

The working principle is as follows: when the valve seat 65 is damaged, an operator firstly rotates the rotary disc 67 to open the valve plate 68, so that the valve plate 68 is in a transverse state, then holds the two hand-screwing discs 64 to rotate anticlockwise to drive the threaded rod 63 to spirally rise, when one end of the threaded rod 63 is separated from the first threaded hole 4, an operator holds the valve seat 65 with both hands to lift, the lifting movement of the valve seat 65 drives the arc-shaped cover 5 to be separated from the arc-shaped opening 2, and simultaneously drives the sealing plate 61 to separate from the fixed block 3, when a new valve seat 65 is installed, the valve seat 65 is held to enable the arc-shaped cover 5 to be matched with the arc-shaped opening 2 and then pressed downwards to be clamped, and the sealing gasket 6 is in pressing contact with the inner wall of the arc-shaped opening 2 to form sealing, at the moment, the two threaded rods 63 are aligned to the second threaded hole 62, the hand screwing plate 64 is rotated clockwise, the threaded rods 63 are driven to rotate, descend and move, and the threaded rods move to be connected with the inner wall of the first threaded hole 4 to form sealing reinforcement on the arc-shaped cover 5.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a gate valve convenient to change disk seat, includes valve body (1), its characterized in that: the outer surface of the valve body (1) is provided with an arc-shaped opening (2), the outer surfaces of the valve body (1) are fixedly connected with fixed blocks (3), the upper surfaces of the two fixed blocks (3) are provided with first threaded holes (4), and the inner wall of the arc-shaped opening (2) is movably clamped with an arc-shaped cover (5);

the lower surface of arc lid (5) is provided with just dismounting device, and just dismounting device is including sealed the pad (6), the upper surface that seals up (6) with the lower fixed surface of arc lid (5) is connected.

2. The gate valve of claim 1, wherein the gate valve is adapted to facilitate replacement of the valve seat, and further comprises: the surface of sealed pad (6) with the inner wall extrusion contact of arc mouth (2), the equal fixedly connected with closing plate (61) of upper surface of arc lid (5), two the lower surface of closing plate (61) all with the upper surface extrusion contact of fixed block (3).

3. The gate valve of claim 2, wherein the gate valve is adapted to facilitate replacement of the valve seat, and further comprises: second threaded holes (62) are formed in the upper surfaces of the two sealing plates (61), and threaded rods (63) are connected to the inner walls of the second threaded holes (62) in a threaded mode.

4. A gate valve for facilitating replacement of a valve seat according to claim 3, wherein: two the terminal surface of threaded rod (63) all with the inner wall threaded connection of first screw hole (4), two the equal fixedly connected with hand of the terminal surface of threaded rod (63) is twisted dish (64).

5. The gate valve of claim 1, wherein the gate valve is adapted to facilitate replacement of the valve seat, and further comprises: the upper surface of arc lid (5) is fixed the intercommunication has disk seat (65), valve rod (66) have been cup jointed in the inner wall activity of disk seat (65), the one end fixed surface of valve rod (66) is connected with carousel (67).

6. The gate valve of claim 5, wherein said gate valve is adapted to facilitate replacement of said valve seat: the other end surface of valve rod (66) runs through and extends to inside valve body (1), the other end surface fixed connection of valve rod (66) has valve plate (68), the surface of valve plate (68) with the inner wall sealing contact of valve body (1).