CN211693579U

CN211693579U - Gate valve

Info

Publication number: CN211693579U
Application number: CN201922352329.5U
Authority: CN
Inventors: 虞振道; 林童
Original assignee: Ya Ya Valve Co ltd
Current assignee: Ya Ya Valve Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-16
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a push-pull valve relates to push-pull valve technical field, specifically is a push-pull valve, which comprises a valve body, the positive below movable mounting of valve body has the disk seat circle, and the inside movable mounting of disk seat circle has the disk seat, the draw-in groove with disk seat circle matched with is seted up on the top of disk seat, the top fixed mounting of valve body has the gland, and the top fixed mounting of gland has packing gland. According to the gate valve, the packing is clamped in the packing pipe, the packing is tightly attached to the output shaft of the pneumatic actuator, the sealing performance of the joint of the output shaft and the valve body is guaranteed, the packing gland is tightly pressed through the screw rod at the top of the packing gland, the packing is pressed at the bottom of the packing gland, the interior of the packing is further tightly matched with the output shaft of the pneumatic actuator, and the sealing performance of the gate valve is further improved.

Description

Gate valve

Technical Field

The utility model relates to a push-pull valve technical field specifically is a push-pull valve.

Background

The gate valve is characterized in that a round opening with the same diameter is formed in the gate plate, the round opening on the gate plate is completely separated from and matched with the diameter of the through hole by opening and closing the gate plate, the valve has the advantages that the diameter of the valve body is not provided with a groove, a medium cannot be blocked and blocked, the gate valve has the characteristic of full-diameter circulation, and the sealing structure can be divided into a soft sealing structure and a hard sealing structure.

At present, the main structure of a gate valve comprises a valve body and a valve core assembly, wherein the valve core assembly comprises a supporting framework, a valve plate and steel balls fixed on the supporting framework, the valve plate is provided with a groove for accommodating the steel balls, the upper end of the supporting framework is connected with an air cylinder, when the gate valve is closed, the air cylinder pushes the supporting framework to move, the steel balls fixed on the supporting framework simultaneously drive the valve plate to move, when the valve plate moves to the bottom end of the valve body through a space to be sealed, the valve plate stops moving, the supporting framework continues to move, the steel balls move out of the groove, the valve plate is propped open, the valve plate is tightly attached to the valve body, the sealing of the space to be sealed is realized, when the gate valve is opened, the air cylinder exhausts air to drive the supporting framework to move reversely, the supporting framework drives the valve plate to move, lead to the valve plate card to die to easily cause the destruction to the valve plate outside rubber gasket, when opening the push-pull valve once more, influence the sealed effect of rubber gasket, current push-pull valve structure is more complicated simultaneously, causes the installation difficulty.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a push-pull valve has advantages such as improve leakproofness, simple to operate and has solved the problem that provides in the above-mentioned background art.

(II) technical scheme

For improve leakproofness, simple to operate purpose more than realizing, the utility model discloses a following technical scheme realizes: the utility model provides a gate valve, includes the valve body, the positive below movable mounting of valve body has the valve seat circle, and the inside movable mounting of valve seat circle has the disk seat, the top of disk seat seted up with valve seat circle matched with draw-in groove, the top fixed mounting of valve body has the filler tube, and the top fixed mounting of filler tube has gland, the top fixed mounting of filler tube has the support, the top fixed mounting of support has pneumatic actuator, and pneumatic actuator's output shaft runs through to the inside of valve body, the inside filler that is located gland has been cup jointed in the outside activity of pneumatic actuator output shaft.

Preferably, valve seat circle, disk seat mirror image distribution are in the inside of valve body below, and two ring channels have been seted up respectively in the outside of two disk seats, the inside joint of ring channel has O shape circle, two the mounting hole has been seted up in the front of disk seat, and both sides offer around the valve body with mounting hole matched with screw hole, the internal thread of disk seat side mounting hole has cup jointed hexagon socket head cap screw.

Preferably, the rubber ring is fixedly sleeved on the outer side of each valve seat, the valve plates are clamped in the middle of the two valve seats, and slots matched with the valve plates are formed in the inner portion below the valve body.

Preferably, the fixed orifices have been seted up at the top of valve plate, and the fixed pin axle that has cup jointed in the inside of fixed orifices, the bottom of pneumatic actuator output shaft is seted up with valve plate matched with rectangular channel, and the valve plate joint in the inside of rectangular channel, pneumatic actuator's output shaft and valve plate pass through round pin axle fixed connection.

Preferably, the top of the valve body and the bottom of the filler pipe are provided with mounting holes which are matched with each other, the filler pipe is fixedly connected with the valve body through a screw rod, and a gasket is movably mounted between the bottom of the filler pipe and the top of the valve body.

Preferably, the top of the packing gland and the top of the packing rod are provided with mounting holes which are matched with each other, the packing gland is fixedly connected with the packing tube through a screw rod, and the bottom end of the packing gland is clamped in the packing tube.

(III) advantageous effects

The utility model provides a push-pull valve possesses following beneficial effect:

1. according to the gate valve, the packing is clamped in the packing pipe, the packing is tightly attached to the output shaft of the pneumatic actuator, the sealing performance of the joint of the output shaft and the valve body is guaranteed, the packing gland is tightly pressed through the screw rod at the top of the packing gland, the packing is pressed at the bottom of the packing gland, the interior of the packing is further tightly matched with the output shaft of the pneumatic actuator, and the sealing performance of the gate valve is further improved.

2. This push-pull valve locks the valve seat circle through a plurality of hexagon socket head cap screws of both sides to drive two disk seats and move to inside, and then make the inside both sides of the valve plate of closely laminating in top of disk seat, accomplish the device's installation, the degree of difficulty of the device installation has been reduced, there are a plurality of O shape circle at the outside movable mounting of valve seat circle simultaneously, the leakproofness of valve seat circle with the valve body fitting surface has been guaranteed, and simultaneously, there is the rubber circle in the outside fixed mounting of disk seat, the leakproofness that the disk seat of further assurance both sides is connected with the valve plate has reduced the device and has taken place the probability of leaking.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side sectional view of the present invention;

in the figure: 1. a valve body; 2. a valve seat ring; 3. a valve seat; 4. a valve plate; 5. a socket head cap screw; 6. an O-shaped ring; 7. a pin shaft; 8. a gasket; 9. a filler; 10. a packing gland; 11. a support; 12. and a pneumatic actuator.

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.

Referring to fig. 1 to 2, the present invention provides a technical solution: a gate valve comprises a valve body 1, a valve seat ring 2 is movably arranged below the front face of the valve body 1, a valve seat 3 is movably arranged inside the valve seat ring 2, a clamping groove matched with the valve seat ring 2 is formed in the top end of the valve seat 3, a rubber ring is fixedly sleeved outside the valve seat 3, a valve plate 4 is clamped in the middle of each of the two valve seats 3, a slot matched with the valve plate 4 is formed inside the lower portion of the valve body 1, the rubber ring is fixedly sleeved outside the two valve seats 3, the sealing performance of the joint of the two valve seats 3 with the valve seat ring 2 and the valve plate 4 is guaranteed, the leakage probability of the device during operation is reduced, the sealing performance of the device is further improved, the valve seat ring 2 and the valve seat 3 are distributed inside the lower portion of the valve body 1 in a mirror image mode, two annular grooves are respectively formed in the outer sides of the two valve seats 3, an O-shaped ring 6 is, and the front and back sides of the valve body 1 are provided with threaded holes matched with the mounting holes, the internal threads of the mounting holes on the side surfaces of the valve seats 3 are sleeved with socket head cap screws 5, two valve seat rings 2 are fixed on the two sides below the valve body 1 through the socket head cap screws 5, so that the two valve seats 3 are fixed on the two sides below the valve body 1, the top ends of the inner sides of the two valve seats 3 are attached to the two sides of the valve plate 4, and the device is ensured, in addition, a plurality of O-shaped rings 6 are clamped on the outer sides of the two valve seat rings 2, so that the sealing performance between the valve seat rings 2 and the interior of the valve body 1 is ensured, meanwhile, the stability of the two valve seat rings 2 is improved, the top of the valve body 1 is fixedly provided with a filler pipe, the top of the filler pipe is fixedly provided with a filler cover 10, the top of the filler pipe, the outside of the output shaft of the pneumatic actuator 12 is movably sleeved with the packing 9 positioned inside the packing gland 10, the top of the packing gland 10 and the top of the packing rod are provided with mounting holes matched with each other, the packing gland 10 and the packing tube are fixedly connected through a screw rod, the bottom end of the packing gland 10 is clamped inside the packing tube, the packing 9 inside the packing tube is extruded through the bottom end of the packing gland 10, so that the packing 9 is deformed, the inside of the packing 9 is tightly attached to the output shaft of the pneumatic actuator 12, the sealing performance of the device is further ensured, meanwhile, the tightness of the screw rod at the top of the packing gland 10 can be adjusted according to the use condition, so that the inside of the packing 9 is always attached to the output shaft of the pneumatic actuator 12, the sealing performance of the device is ensured, the top of the valve plate 4 is provided with a fixing hole, the inside of the fixing hole is fixedly sleeved with a pin shaft 7, and valve plate 4 joint is in the inside of rectangular channel, the output shaft of pneumatic actuator 12 and valve plate 4 are through round pin axle 7 fixed connection, the output shaft through pneumatic actuator 12 drives valve plate 4 and reciprocates, and then realize opening and shutting of the device, the size that opens and shuts can be controlled through pneumatic actuator 12, the accuracy of the device is improved, and simultaneously, open and shut through pneumatic actuator 12 control, the degree of automation has been improved, the work degree of difficulty has been reduced, mutually supporting mounting hole has been seted up to the top of valve body 1 and the bottom of filler tube, and filler tube and valve body 1 pass through screw rod fixed connection, movable mounting has gasket 8 between the bottom of filler tube and the top of valve body 1, gasket 8 has guaranteed the leakproofness of filler tube and valve body 1 junction, the probability that the device takes place to leak when working has further been reduced.

In conclusion, when the gate valve is used, the output shaft of the pneumatic actuator 12 is fixedly connected with the valve plate 4 through the pin shaft 7, the valve plate 4 and the output shaft of the pneumatic actuator 12 are clamped into the valve body 1, the filler rod and the filler rod are fixedly connected through the screw rod, the bottom end of the filler gland 10 presses the filler 9, so that the inner part of the filler 9 is tightly attached to the output shaft of the pneumatic actuator 12, the sealing performance of the gate valve is ensured, meanwhile, the valve seat rings 2 are fixed on two sides below the valve body 1 through the hexagon socket head cap screws 5, so that the two valve seat rings 2 drive the valve seats 3 to move inwards, the top ends of the inner sides of the two valve seats 3 are tightly attached to two sides of the valve plate 4, the installation of the gate valve is completed, the rubber rings are fixedly sleeved on the outer parts of the two valve seats 3, the sealing performance of the joints of the two valve seats 3 and the valve, and controlling the opening and closing of the device.

Additionally, the valve body bottom of the gate valve can be disassembled, thereby also having the function of slag discharge.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A gate valve, includes valve body (1), its characterized in that: valve body (1) positive below movable mounting has valve seat circle (2), and the inside movable mounting of valve seat circle (2) has disk seat (3), the top of disk seat (3) has been seted up with valve seat circle (2) matched with draw-in groove, the top fixed mounting of valve body (1) has the filler tube, and the top fixed mounting of filler tube has gland (10), the top fixed mounting of filler tube has support (11), the top fixed mounting of support (11) has pneumatic actuator (12), and the output shaft of pneumatic actuator (12) runs through to the inside of valve body (1), the outside activity of pneumatic actuator (12) output shaft has cup jointed and has been located inside filler (9) of gland (10).

2. A gate valve according to claim 1, wherein: disk seat circle (2), disk seat (3) mirror image distribution are in the inside of valve body (1) below, and two ring channels have been seted up respectively in the outside of two disk seats (3), the inside joint of ring channel has O shape circle (6), two the mounting hole has been seted up in the front of disk seat (3), and both sides offer around valve body (1) with mounting hole matched with screw hole, the internal thread of disk seat (3) side mounting hole has cup jointed socket head cap screw (5).

3. A gate valve according to claim 1, wherein: the rubber ring is fixedly sleeved on the outer side of the valve seat (3), the valve plate (4) is clamped in the middle of the two valve seats (3), and the slot matched with the valve plate (4) is formed in the inner portion below the valve body (1).

4. A gate valve according to claim 1, wherein: the fixed orifices have been seted up at the top of valve plate (4), and the fixed cover of the inside of fixed orifices has connect round pin axle (7), the bottom of pneumatic actuator (12) output shaft is seted up with valve plate (4) matched with rectangular channel, and valve plate (4) joint in the inside of rectangular channel, the output shaft of pneumatic actuator (12) and valve plate (4) are through round pin axle (7) fixed connection.

5. A gate valve according to claim 1, wherein: the valve is characterized in that mounting holes matched with each other are formed in the top of the valve body (1) and the bottom of the packing tube, the packing tube is fixedly connected with the valve body (1) through a screw rod, and a gasket (8) is movably mounted between the bottom of the packing tube and the top of the valve body (1).

6. A gate valve according to claim 1, wherein: the packing structure is characterized in that mounting holes matched with each other are formed in the top of the packing gland (10) and the top of the packing rod, the packing gland (10) is fixedly connected with the packing tube through a screw rod, and the bottom end of the packing gland (10) is clamped inside the packing tube.