CN217130359U

CN217130359U - Pneumatic gate valve capable of conveniently replacing sealing element

Info

Publication number: CN217130359U
Application number: CN202220425915.7U
Authority: CN
Inventors: 孙松; 邓玉兰; 王婧媛
Original assignee: Shanghai Qianyue Technology Co ltd
Current assignee: Shanghai Qianyue Technology Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-08-05
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a can conveniently change pneumatic gate valve of sealing member, the valve body comprises a valve body, the upper and lower both ends of valve body are provided with the connecting pipe respectively, two from top to bottom both sides are provided with the valve body respectively, four around the connecting pipe the lower extreme of valve body is connected respectively on the upper and lower both sides wall of valve body, the valve body is provided with the sealing ring by preceding terminal surface, be provided with the external screw thread on the rear end lateral wall of sealing ring, the inside of valve body is provided with the valve plate, the upper end of valve plate is provided with the valve rod, be provided with the draw-in groove on the both sides wall of valve rod respectively, two the inner wall of draw-in groove is provided with the abrasionproof cover respectively, the upper end of connecting pipe is provided with the fixed plate. This pneumatic gate valve simple structure through the threaded connection of sealing ring with the valve body, has realized the effect of conveniently changing the sealing ring, through installing the abrasionproof cover on the valve plate lateral wall, has reduced the friction with the valve body, has improved the leakproofness.

Description

Pneumatic gate valve capable of conveniently replacing sealing element

Technical Field

The utility model relates to a pneumatic brake valve field especially relates to a can conveniently change pneumatic brake valve of sealing member.

Background

Pneumatic gate valve is the valve with the help of compressed air drive, and when the gate valve was closed, sealed face can only rely on medium pressure to seal, relies on medium pressure to guarantee sealed face's sealed face to the disk seat of opposite side with the sealed face of flashboard promptly, and this is exactly the self sealss. Most gate valves adopt forced sealing, namely when the valve is closed, the gate plate is forced to press towards the valve seat by means of external force so as to ensure the sealing performance of the sealing surface, and the gate valve is also suitable for the field of petrochemical industry.

Current patent (CN211145407U), a pneumatic gate valve is disclosed, including the disk seat, be equipped with the medium circulation passageway in the disk seat, be equipped with the flashboard in the medium circulation passageway, install the cylinder on the disk seat, the free end and the flashboard of the piston rod of cylinder are connected, the flashboard goes up and down in the switch of realization gate valve in the disk seat under the drive effect of cylinder, be equipped with the seal groove in the disk seat, be equipped with inflatable seal in the seal groove, aerify the back when inflatable seal, inflatable seal cooperates with one side seal of the medium inflow of flashboard.

However, the device is simple in structure, when the internal sealing ring is damaged or used for a long time, the sealing ring cannot be replaced, the inner side wall of the valve plate and the inner side wall of the valve body can be rubbed due to long-time use, the inner wall of the valve body can be seriously abraded, a good sealing effect cannot be achieved, and therefore the existing device needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pneumatic gate valve which can conveniently replace a sealing element.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pneumatic gate valve convenient for replacing sealing elements comprises a valve body, wherein connecting pipes are respectively arranged at the upper end and the lower end of the valve body, supports are respectively arranged at the front side and the rear side of the connecting pipes, the upper ends and the lower ends of the four supports are respectively connected to the upper side wall and the lower side wall of the valve body, a sealing ring is arranged at the front end of the valve body, external threads are arranged on the rear side wall of the sealing ring, a clamping platform is arranged at the inner side wall of the valve body close to the front end, internal threads are arranged at the inner side wall of the valve body close to the front end, a valve plate is arranged in the valve body, a valve rod is arranged at the upper end of the valve plate, the lower end of the valve rod penetrates through the valve plate, clamping grooves are respectively arranged on the two side walls of the valve plate, anti-abrasion sleeves are respectively arranged on the inner walls of the two clamping grooves, and the upper end of the valve rod sequentially penetrates through the lower end faces of the valve body and the connecting pipes, the upper end of connecting pipe is provided with the fixed plate, the upper end of fixed plate is provided with the air pump, the lower terminal surface of fixed plate is run through to the upper end of connecting pipe, the lower terminal surface of fixed plate is provided with two screws respectively by both sides edge, two the lower terminal surface of fixed plate is run through respectively to the upper end of screw, and two the upper end screw thread of screw is fixed on the lower terminal surface of air pump.

As a further description of the above technical solution:

the upper end of the valve rod is fixedly connected to the output end of the air pump.

As a further description of the above technical solution:

the lower end part of the valve rod is rotatably connected to the upper inner wall close to the lower end connecting pipe.

As a further description of the above technical solution:

the size of the front end of the sealing ring is consistent with that of the front end of the valve body.

As a further description of the above technical solution:

the two wear-resistant sleeves are arc-shaped.

As a further description of the above technical solution:

the two side walls of the four supports are respectively connected with the valve body and the connecting pipe through welding, and the four supports are identical in shape.

As a further description of the above technical solution:

the sealing ring is made of stainless steel.

As a further description of the above technical solution:

the rotation angle of the valve plate is 90 degrees.

The utility model discloses following beneficial effect has:

in the utility model, the back tip of sealing ring is provided with the external screw thread, and the sealing ring passes through threaded connection with the valve body, and the inside ka tai of valve body can play the fixed position effect to the sealing ring, when changing the sealing ring, moves through twisting of sealing ring front end, takes off from the front end of valve body, has realized the convenient effect of changing of sealing ring.

In the utility model, be provided with the draw-in groove on the both sides wall of valve plate respectively, the abrasionproof cover is installed respectively on the inner wall of two draw-in grooves, can effectively prevent the wearing and tearing of valve plate and valve body during the use, has increased the life of valve body, has improved the leakproofness of valve plate and valve body.

Drawings

Fig. 1 is a front view of a pneumatic gate valve with a sealing member that can be easily replaced according to the present invention;

fig. 2 is a schematic view of the utility model showing that the sealing ring of the pneumatic gate valve can be replaced conveniently;

fig. 3 is a right side view of the pneumatic gate valve of the present invention, which can facilitate the replacement of the sealing member;

fig. 4 is a right sectional view of the pneumatic gate valve provided by the present invention, wherein the sealing member can be conveniently replaced;

fig. 5 is a cross-sectional view of a valve stem of a pneumatic gate valve with a sealing member that can be conveniently replaced according to the present invention;

fig. 6 is a perspective view of the sealing ring of the pneumatic gate valve of the present invention, which can conveniently replace the sealing member.

Illustration of the drawings:

1. an air pump; 2. a fixing plate; 3. a screw; 4. a support; 5. an anti-wear sleeve; 6. an external thread; 7. a connecting pipe; 8. a valve stem; 9. a seal ring; 10. a valve plate; 11. a valve body; 12. clamping a platform; 13. an internal thread; 14. a clamping groove.

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. 1-6, the present invention provides an embodiment: a pneumatic gate valve convenient for replacing sealing elements comprises a valve body 11, connecting pipes 7 are respectively arranged at the upper end and the lower end of the valve body 11, supports 4 are respectively arranged at the front side and the rear side of the upper connecting pipe 7 and the lower connecting pipe 7, the upper ends and the lower ends of the four supports 4 are respectively connected to the upper side wall and the lower side wall of the valve body 11, the two side walls of the four supports 4 are respectively connected with the valve body 11 and the connecting pipes 7 through welding, the four supports 4 are consistent in shape, a sealing ring 9 is arranged at the front end of the valve body 11, the sealing ring 9 is made of stainless steel, the front end of the sealing ring 9 is consistent in size with the front end of the valve body 11, external threads 6 are arranged on the side wall at the rear end of the sealing ring 9, a clamping table 12 is arranged at the position close to the front end of the inner side wall of the valve body 11, the clamping table 12 plays a role in limiting position on the sealing ring 9, internal threads 13 are arranged at the position close to the front end of the inner side wall of the valve body 11, the rear end of the sealing ring 9 is in a threaded connection mode, the front end of the sealing ring 9 is screwed and removed, so that the effect of convenient replacement of the sealing ring 9 is realized.

The inside of valve body 11 is provided with valve plate 10, and the turned angle of valve plate 10 is 90 degrees, and the upper end of valve plate 10 is provided with valve rod 8, and valve plate 10 is run through to the lower extreme of valve rod 8, and the lower tip of valve rod 8 rotates to be connected on leaning on the upper inner wall of lower extreme connecting pipe 7, and the upper end fixed connection of valve rod 8 is on the output of air pump 1.

Be provided with draw-in groove 14 on the both sides wall of valve plate 10 respectively, the inner wall of two draw-in grooves 14 is provided with abrasionproof cover 5 respectively, the shape of two abrasionproof covers 5 is the arc, can effectively prevent valve plate 10 and valve body 11's wearing and tearing, valve body 11's life has been increased, valve plate 10 and valve body 11's leakproofness has been improved, valve rod 8's upper end runs through valve body 11 and connecting pipe 7's lower terminal surface in proper order, connecting pipe 7's upper end is provided with fixed plate 2, fixed plate 2's upper end is provided with air pump 1, connecting pipe 7's upper end runs through the lower terminal surface of fixed plate 2, the lower terminal surface of fixed plate 2 leans on both sides edge to be provided with two screws 3 respectively, the upper end of two screws 3 runs through the lower terminal surface of fixed plate 2 respectively, and the upper end screw thread of two screws 3 fixes on the lower terminal surface of air pump 1.

The working principle is as follows: during operation, the air supply of 1 compressed air of air pump is power, valve plate 10 that drive valve rod 8 drove both sides is 90 degrees rotations in valve body 11, it controls to open the gate valve to reach, valve plate 10 that drive valve rod 8 drove both sides is 90 degrees rotations in valve body 11, reach and close control the gate valve, sealing ring 9 can be twisted from valve body 11 through the screw thread and take off, conveniently change sealing ring 9, ka tai 12 in the valve body 11 can play the position to sealing ring 9 and prescribe a limit to the effect, prevent that during operation sealing ring 9 from droing, draw-in groove 14 has been seted up on the both sides wall of valve plate 10 respectively, abrasionproof cover 5 is fixed mounting respectively on two draw-in groove 14 inner walls, when using, the effectual wearing and tearing of valve plate 10 to valve body 11 of having avoided, thereby increase valve body 11's life, better sealed effect has been improved.

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. The utility model provides a can conveniently change pneumatic gate valve of sealing member, includes valve body (11), its characterized in that: the upper end and the lower end of the valve body (11) are respectively provided with a connecting pipe (7), the front side and the rear side of the upper connecting pipe and the lower connecting pipe (7) are respectively provided with a support (4), the upper end and the lower end of the four supports (4) are respectively connected onto the upper side wall and the lower side wall of the valve body (11), the front end of the valve body (11) is provided with a sealing ring (9), the rear end side wall of the sealing ring (9) is provided with an external thread (6), the inner side wall of the valve body (11) is provided with a clamping table (12) near the front end, the inner side wall of the valve body (11) is provided with an internal thread (13) near the front end, the rear end of the sealing ring (9) is in threaded connection with the inner side of the valve body (11), the valve plate (10) is arranged inside the valve body (11), the upper end of the valve plate (10) is provided with a valve rod (8), and the lower end of the valve rod (8) penetrates through the valve plate (10), be provided with draw-in groove (14) on the both sides wall of valve plate (10) respectively, two the inner wall of draw-in groove (14) is provided with abrasionproof cover (5) respectively, the lower terminal surface of valve body (11) and connecting pipe (7) is run through in proper order to the upper end of valve rod (8), the upper end of connecting pipe (7) is provided with fixed plate (2), the upper end of fixed plate (2) is provided with air pump (1), the lower terminal surface of fixed plate (2) is run through to the upper end of connecting pipe (7), the lower terminal surface of fixed plate (2) is leaned on both sides edge and is provided with two screws (3), two the lower terminal surface of fixed plate (2) is run through respectively to the upper end of screw (3), and two the upper end thread tightening of screw (3) is on the lower terminal surface of air pump (1).

2. The pneumatic gate valve with a seal capable of being replaced conveniently as claimed in claim 1, wherein: the upper end of the valve rod (8) is fixedly connected to the output end of the air pump (1).

3. The pneumatic gate valve with a seal capable of being replaced conveniently as claimed in claim 1, wherein: the lower end part of the valve rod (8) is rotatably connected to the upper inner wall close to the lower end connecting pipe (7).

4. The pneumatic gate valve with a seal capable of being replaced conveniently as claimed in claim 1, wherein: the size of the front end of the sealing ring (9) is consistent with that of the front end of the valve body (11).

5. The pneumatic gate valve with a seal being easily replaced according to claim 1, wherein: the two wear-resistant sleeves (5) are arc-shaped.

6. The pneumatic gate valve with a seal being easily replaced according to claim 1, wherein: the two side walls of the four supports (4) are respectively connected with the valve body (11) and the connecting pipe (7) through welding, and the four supports (4) are identical in shape.

7. The pneumatic gate valve with a seal capable of being replaced conveniently as claimed in claim 1, wherein: the sealing ring (9) is made of stainless steel.

8. The pneumatic gate valve with a seal capable of being replaced conveniently as claimed in claim 1, wherein: the rotation angle of the valve plate (10) is 90 degrees.