CN218543214U

CN218543214U - Soft seal pneumatic butterfly valve

Info

Publication number: CN218543214U
Application number: CN202223220439.4U
Authority: CN
Inventors: 孙保明; 王罡; 张鑫焱; 刘洁
Original assignee: Okaway Far East Control Valve Dalian Co ltd
Current assignee: Okaway Far East Control Valve Dalian Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-02-28
Anticipated expiration: 2032-12-01

Abstract

The utility model belongs to the technical field of the butterfly valve technique and specifically relates to a soft sealed pneumatic butterfly valve, including base and pneumatic butterfly valve body, sealing device is installed to the outer wall of valve plate, connecting device is installed to the top outer wall of pneumatic butterfly valve body. Can be at the internally mounted valve plate of pneumatic butterfly valve body, the outer wall at the valve plate sets up the articulamentum, what the articulamentum adopted is the polytetrafluoroethylene material, better anticorrosive performance has, like this alright in order to improve the life of valve plate department, be connected with the valve rod at the front end of valve plate, the top and bottom of valve rod is provided with first seal bearing and second seal bearing respectively, like this alright play sealed effect, later install first sealing washer and second sealing washer respectively at the top and bottom outer wall of valve rod, can improve soft sealed effect like this through two sealing washers, thereby avoid valve rod and pneumatic butterfly valve body junction to the at utmost to receive the influence of wearing and tearing and appear revealing the problem.

Description

Soft seal pneumatic butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a soft sealed pneumatic butterfly valve.

Background

The soft sealing pneumatic butterfly valve is used as a part for realizing the on-off and flow control of a pipeline system, and has been widely applied in various fields of petroleum, chemical industry, metallurgy, water and electricity and the like.

For example, the publication No. CN217401710U, comprises a butterfly valve body. A soft sealed pneumatic butterfly valve, belong to the pneumatic butterfly valve field, can continue to control the butterfly valve and use under the circumstances that pneumatic component damaged.

However, the above-mentioned soft seal pneumatic butterfly valve still has some problems when using, for example, in the above-mentioned, movable mounting has the circular butterfly plate in the butterfly valve body, but the valve rod on the circular butterfly plate does not set up better seal structure with the junction of butterfly valve body, like this soft seal pneumatic butterfly valve is after using a period, the junction of the valve rod department of circular butterfly plate and butterfly valve body can produce certain wearing and tearing because of carrying out the motion of closing and opening, like this receive the influence of wearing and tearing to appear the problem of revealing very easily, thereby just reduced the result of use of soft seal pneumatic butterfly valve, also do not set up the dismantlement structure between the valve rod of the circular butterfly plate and the start-up subassembly simultaneously, like this in the use in case pneumatic subassembly damages, can't dismantle pneumatic subassembly from the butterfly valve body, be unfavorable for maintaining like this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned soft seal pneumatic butterfly valve when using, the valve rod on the circular butterfly plate is relatively poor with the junction leakproofness of butterfly valve body, receives the wearing and tearing influence to take place easily to reveal the problem and if pneumatic component damages, can't dismantle it from the butterfly valve body to be unfavorable for the maintenance, and a soft seal pneumatic butterfly valve who provides.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a design soft sealed pneumatic butterfly valve, includes base and pneumatic butterfly valve body, the top rigid coupling of base has the pneumatic butterfly valve body, the internally mounted of pneumatic butterfly valve body has the valve plate, the outer wall rigid coupling of valve plate has the articulamentum, and the outer wall of articulamentum and the inner wall of pneumatic butterfly valve body laminate mutually, sealing device is installed to the outer wall of valve plate, connecting device is installed to the top outer wall of pneumatic butterfly valve body.

Preferably, sealing device includes the valve rod, with valve plate looks rigid coupling in the middle of the rear end face of valve rod, the top and bottom outer wall of valve rod rotates with pneumatic butterfly valve body and base through first sealed bearing and second sealed bearing respectively and links to each other, first sealing washer is installed to the top outer wall of valve rod, and the lower surface of first sealing washer and the inner wall of pneumatic butterfly valve body laminate mutually, the second sealing washer is installed to the below outer wall of valve rod, and the outer wall of second sealing washer and pneumatic butterfly valve body circular groove department inner wall looks rigid coupling.

Preferably, a plurality of top plates are attached to an upper outer wall of the first seal ring, so that the position of the first seal ring can be fixed by the top plates or the like.

Preferably, the upper surface laminating of roof has even the board, even the lower surface of board and the upper surface laminating of pneumatic butterfly valve body mutually, and even the opening part inner wall of board and the top outer wall clearance fit of valve rod, can block the roof through even the board like this.

Preferably, the connecting device comprises a support plate, the upper surface of the left support plate and the upper surface of the right support plate are fixedly connected with a connecting plate, a screw rod is connected with the inner part of the lower part of the support plate in a threaded manner, a baffle is rotatably connected to the upper part of the screw rod, the outer wall of the outer side of the baffle is in clearance fit with the inner wall of the sliding groove of the support plate, the upper surface of the baffle is attached to the outer wall of the pneumatic butterfly valve body, and a rotating head is fixedly connected to the lower part of the screw rod.

Preferably, the top of baffle is equipped with the rectangular block, and the outer wall of rectangular block and the groove inner wall clearance fit of pneumatic butterfly valve body, the upper surface and the company's board looks rigid coupling of rectangular block can further improve the stability of being connected between company's board and the pneumatic butterfly valve body like this through the rectangular block.

The utility model provides a pair of soft seal pneumatic butterfly valve, beneficial effect lies in: the valve plate can be installed inside the pneumatic butterfly valve body, the outer wall of the valve plate is provided with the connecting layer, the connecting layer is made of polytetrafluoroethylene, and has good corrosion resistance, so that the service life of the valve plate can be prolonged, the front end of the valve plate is connected with the valve rod, the upper side and the lower side of the valve rod are respectively provided with the first sealing bearing and the second sealing bearing, so that a sealing effect can be achieved, then the first sealing ring and the second sealing ring are respectively installed on the outer walls of the upper side and the lower side of the valve rod, so that a soft sealing effect can be improved through the two sealing rings, the problem that the joint of the valve rod and the pneumatic butterfly valve body is affected by abrasion and leakage is avoided to the greatest extent, then the device is connected with an external structure, the valve plate can be rotated by matching with a pneumatic assembly and the like through the external structure, and the purpose of controlling flow is achieved;

when the pneumatic component on the pneumatic butterfly valve body goes wrong, the external structure can be closed at the valve plate through the groove below the valve rod, the rotary head is rotated again, the screw rod is driven to rotate through the rotary head, the screw rod drives the baffle to move downwards through the support plate, the pneumatic component shell cover and the like are detached again, the upper part of the valve rod is separated from the corresponding structure, and therefore the pneumatic component can be detached from the pneumatic butterfly valve body, and the pneumatic component can be maintained conveniently.

Drawings

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

FIG. 2 is a plan sectional view of FIG. 1;

FIG. 3 is a schematic view of the second sealed bearing, the second seal ring and the base of FIG. 2;

FIG. 4 is a schematic view of the valve stem, the first packing bearing and the first packing of FIG. 2;

fig. 5 is a schematic structural diagram of the support plate, the swivel and the screw in fig. 2.

In the figure: 1. the base, 2, pneumatic butterfly valve body, 3, sealing device, 301, the valve rod, 302, first sealed bearing, 303, second sealed bearing, 304, first sealing washer, 305, the second sealing washer, 3A1, pneumatic component body, 3A2, gas pocket, 4, connecting device, 401, the extension board, 402, the screw rod, 403, the baffle, 404, turn round, 5, the valve plate, 6, the articulamentum, 7, the roof, 8, even board, 9, the rectangle piece.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings:

example 1:

referring to the attached drawings 1-5, in the embodiment, a soft seal pneumatic butterfly valve comprises a base 1 and a pneumatic butterfly valve body 2, the pneumatic butterfly valve body 2 is fixedly connected to the upper portion of the

base

1, 2 rectangular grooves and 1 circular groove are respectively arranged on the upper portion and the lower portion of the pneumatic butterfly valve body 2, a valve plate 5 is arranged inside the pneumatic butterfly valve body 2, a connecting layer 6 is fixedly connected to the outer wall of the valve plate 5, the connecting layer 6 is made of polytetrafluoroethylene, and has good corrosion resistance, so that the service life of the valve plate 5 can be prolonged, the outer wall of the connecting layer 6 is attached to the inner wall of the pneumatic butterfly valve body 2, a sealing device 3 is arranged on the outer wall of the valve plate 5, the sealing performance of the joint of a valve rod 301 and the pneumatic butterfly valve body 2 can be improved through the sealing device 3, a connecting device 4 is arranged on the outer wall of the upper portion of the pneumatic butterfly valve body 2, and a pneumatic component can be easily detached from the pneumatic butterfly valve body 2 through the connecting device 4.

Referring to fig. 1-4, the sealing device 3 includes a valve rod 301, a first sealing bearing 302, a second sealing bearing 303, a first sealing ring 304 and a second sealing ring 305, the middle of the rear end face of the valve rod 301 is fixedly connected with the valve plate 5, the valve plate 5 can be driven to rotate by the valve rod 301, the upper and lower outer walls of the valve rod 301 are rotatably connected with the pneumatic butterfly valve body 2 and the base 1 by the first sealing bearing 302 and the second sealing bearing 303, so that the sealing performance of the valve rod 301 can be improved by the first sealing bearing 302 and the second sealing bearing 303, the first sealing ring 304 is installed on the upper outer wall of the valve rod 301, the lower surface of the first sealing ring 304 is attached to the inner wall of the pneumatic butterfly valve body 2, the soft sealing performance at the connection position of the valve rod 301 and the pneumatic butterfly valve body 2 can be improved by the first sealing ring 304, the second sealing ring 305 is installed on the lower outer wall of the valve rod 301, the outer wall of the second sealing ring 305 is fixedly connected with the inner wall of the pneumatic butterfly valve body 2, the connection plate 8 is fixed at the opening of the top plate, the top plate 8, the upper connecting plate 8 of the top plate is fixed with the top plate 301, the upper connecting plate, the opening of the pneumatic butterfly valve plate 301;

can be at the internally mounted valve plate 5 of pneumatic butterfly valve body 2, set up articulamentum 6 at the outer wall of valve plate 5, what articulamentum 6 adopted is the polytetrafluoroethylene material, better corrosion resisting property has, so alright in order to improve the life of valve plate 5 department, be connected with valve rod 301 at the front end of valve plate 5, the top and bottom of valve rod 301 is provided with first sealed bearing 302 and second sealed bearing 303 respectively, so alright play sealed effect with playing, later install first sealing washer 304 and second sealing washer 305 respectively at the top and bottom outer wall of valve rod 301, can improve soft sealed effect through two sealing washers like this, thereby avoid valve rod 301 and pneumatic butterfly valve body 2 junction to receive the influence of wearing and tearing and appear the problem of revealing in the at utmost, later with this device and exterior structural connection, exterior structural cooperation pneumatic component etc. alright realize the rotation of valve plate 5, with this mesh that reaches the control flow.

Referring to fig. 1, 2 and 5, the connecting device 4 includes a support plate 401, a screw 402, a baffle 403 and a rotary head 404, the upper surfaces of the left and right support plates 401 are fixedly connected with a connecting plate 8, a chute is processed on the inner side of the support plate 401, the screw 402 is connected with the support plate 401 in a threaded manner below the support plate 401, the screw 402 can move through the support plate 401, the baffle 403 is rotatably connected above the screw 402, the outer side wall of the baffle 403 is in clearance fit with the inner wall of the chute of the support plate 401, so that the baffle 403 can be driven to move by the screw 402 matching with the support plate 401, the upper surface of the baffle 403 is attached to the outer wall of the pneumatic butterfly valve body 2, the rotary head 404 is fixedly connected below the screw 402, a rectangular block 9 is arranged above the baffle 403, the outer wall of the rectangular block 9 is in clearance fit with the inner wall of the groove of the pneumatic butterfly valve body 2, the upper surface of the rectangular block 9 is fixedly connected with the connecting plate 8, so that the baffle 403 matches with the rectangular block 9 to fix the connecting plate 8 and the pneumatic butterfly valve body 2;

when pneumatic assembly on the pneumatic butterfly valve body 2 goes wrong, can make the exterior structure pass through the recess of valve rod 301 below and close valve plate 5 department, rotate the turn 404 again, drive screw rod 402 through turn 404 and rotate, make screw rod 402 drive baffle 403 downstream through extension board 401, dismantle pneumatic assembly cap etc. again and make the top and the corresponding structure department separation of valve rod 301, alright like this with dismantle pneumatic assembly from pneumatic butterfly valve body 2, thereby just conveniently maintain it.

In this embodiment, when an operator needs to use the soft seal pneumatic butterfly valve, firstly, the operator may install the valve plate 5 inside the pneumatic butterfly valve body 2, the outer wall of the valve plate 5 is provided with the connection layer 6, the connection layer 6 is made of polytetrafluoroethylene and has good corrosion resistance, so that the service life of the valve plate 5 can be prolonged, the front end of the valve plate 5 is connected with the valve rod 301, the upper and lower sides of the valve rod 301 are respectively provided with the first seal bearing 302 and the second seal bearing 303, so that the sealing effect can be achieved, then, the upper and lower outer walls of the valve rod 301 are respectively provided with the first seal ring 304 and the second seal ring 305, so that the soft seal effect can be improved through the two seal rings, so that the problem that the joint of the valve rod 301 and the pneumatic butterfly valve body 2 is affected by abrasion to cause leakage is avoided to the greatest extent, then, the device is connected with an external structure, the external structure is matched with a pneumatic assembly and the like so that the rotation of the valve plate 5 can be achieved, so as to achieve the purpose of controlling flow;

Example 2:

referring to fig. 1-5, in the embodiment, the utility model provides a technical solution: a kind of soft seal pneumatic butterfly valve, the sealing means 3 can also include pneumatic assembly body 3A1 and air vent 3A2, the inferior part of the pneumatic assembly body 3A1 is connected with the link plate 8 fixedly, and the pneumatic assembly body 3A1 is connected with top of the valve stem 301, the internal structure of the pneumatic assembly body 301 can drive the valve stem 301 to rotate, the front end of the pneumatic assembly body 3A1 installs 2 air vents 3A2, the external structure can be connected with the pneumatic assembly body 3A1 through the air vent 3A2, the external structure can control the valve plate 5 through the air vent 3A2 and pneumatic assembly body 3A1, etc., this is prior art, for example in a soft seal pneumatic butterfly valve of authorizing publication No. CN 401217710U this technology has been disclosed, its detailed principle can refer to this comparison patent, so this application has not been repeated;

the external structure can be connected with the pneumatic assembly body 3A1 through the air hole 3A2, and thus the valve plate 5 can be controlled by the external structure through the air hole 3A2 and the pneumatic assembly body 3 A1.

In this embodiment, when the operator needs to use the soft seal pneumatic butterfly valve, the external structure can be connected to the pneumatic assembly body 3A1 through the air hole 3A2, and thus the external structure can control the valve plate 5 through the air hole 3A2 and the pneumatic assembly body 3 A1.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a soft sealed pneumatic butterfly valve, includes base (1) and pneumatic butterfly valve body (2), the top rigid coupling of base (1) has pneumatic butterfly valve body (2), its characterized in that: the internal mounting of pneumatic butterfly valve body (2) has valve plate (5), the outer wall rigid coupling of valve plate (5) has articulamentum (6), and the outer wall of articulamentum (6) and the inner wall of pneumatic butterfly valve body (2) laminate mutually, sealing device (3) are installed to the outer wall of valve plate (5), connecting device (4) are installed to the top outer wall of pneumatic butterfly valve body (2).

2. The soft seal pneumatic butterfly valve of claim 1, wherein: sealing device (3) include valve rod (301), with valve plate (5) looks rigid coupling in the middle of the rear end face of valve rod (301), the upper and lower side outer wall of valve rod (301) rotates with pneumatic butterfly valve body (2) and base (1) through first sealed bearing (302) and second sealed bearing (303) respectively and links to each other, first sealing washer (304) are installed to the top outer wall of valve rod (301), and the lower surface of first sealing washer (304) laminates with the inner wall of pneumatic butterfly valve body (2) mutually, second sealing washer (305) are installed to the below outer wall of valve rod (301), and the outer wall of second sealing washer (305) and pneumatic butterfly valve body (2) circular recess department inner wall looks rigid coupling.

3. The soft seal pneumatic butterfly valve of claim 2, wherein: and a plurality of top plates (7) are arranged on the outer wall of the upper part of the first sealing ring (304).

4. A soft seal pneumatic butterfly valve as claimed in claim 3, wherein: the upper surface laminating of roof (7) has even board (8), the lower surface of even board (8) laminates with the upper surface of pneumatic butterfly valve body (2) mutually, and the opening part inner wall of even board (8) and the top outer wall clearance fit of valve rod (301).

5. The soft seal pneumatic butterfly valve of claim 1, wherein: the connecting device (4) comprises a support plate (401), the upper surface of the support plate (401) is fixedly connected with a connecting plate (8) on the left and right sides, a screw rod (402) is connected with the inner thread of the lower portion of the support plate (401), a baffle (403) is rotatably connected to the upper portion of the screw rod (402), the outer side wall of the baffle (403) is in clearance fit with the inner wall of the sliding groove of the support plate (401), the upper surface of the baffle (403) is attached to the outer wall of the pneumatic butterfly valve body (2), and a rotating head (404) is fixedly connected to the lower portion of the screw rod (402).

6. The soft seal pneumatic butterfly valve of claim 5, wherein: the top of baffle (403) is equipped with rectangular block (9), and the outer wall of rectangular block (9) and the groove inner wall clearance fit of pneumatic butterfly valve body (2), the upper surface and even board (8) looks rigid coupling of rectangular block (9).