CN219139882U

CN219139882U - Valve cavity structure of electric plug valve

Info

Publication number: CN219139882U
Application number: CN202223050833.8U
Authority: CN
Inventors: 陈鹏
Original assignee: Shanghai Wanfeng Heavy Industry Co ltd
Current assignee: Shanghai Wanfeng Heavy Industry Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-06-06
Anticipated expiration: 2032-11-16

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a valve cavity structure of an electric plug valve, which comprises a valve body and a flange plate, wherein the flange plate is integrally formed at two ends of the valve body, a cylindrical valve cavity is arranged in an inner cavity of the valve body, a top limiting mechanism is arranged at the top of the inner cavity of the cylindrical valve cavity, a bottom limiting mechanism is arranged at the bottom of the inner cavity of the cylindrical valve cavity, the top limiting mechanism and the bottom limiting mechanism respectively comprise an upper limiting ring, a lower limiting ring, a step, a first sealing ring and a second sealing ring, the lower limiting ring is integrally formed below the upper limiting ring, the diameter of the upper limiting ring is smaller than that of the lower limiting ring, a step is formed at the joint of the upper limiting ring and the lower limiting ring, and the first sealing ring is movably embedded in the inner wall of the upper limiting ring; this novel spacing precision to case both ends is promoted in the promotion, can promote the axiality of case when rotating the case to reduce the wearing and tearing to top sealing washer, bottom sealing washer, can promote the leakproofness of valve body when using.

Description

Valve cavity structure of electric plug valve

Technical Field

The utility model relates to the technical field of valves, in particular to a valve cavity structure of an electric plug valve.

Background

The plug valve is a rotary valve with a plunger-shaped closing member, and the opening of the plug valve is communicated with or separated from the opening of the valve body by rotating 90 degrees, so that the plug valve is opened or closed.

The valve cavity and the valve core junction of current electric plug valve are sealed and spacing only through the sealing washer, and when the case was not opened completely, the case can play certain hindrance to rivers, also can strike the case through the rivers of valve body simultaneously, causes the case to produce loose phenomenon in the valve body internal rotation, leads to the axiality of case when rotating to reduce, can aggravate the wearing and tearing to the sealing washer to influence the sealed effect of valve body when using, for solving above-mentioned problem, put forward the valve cavity structure of an electric plug valve in this application.

Disclosure of Invention

Object of the utility model

In order to solve the technical problems in the background art, the utility model provides a valve cavity structure of an electric plug valve, which can improve the coaxiality of a valve core when the valve core rotates by improving the limiting precision of two ends of the valve core so as to reduce the abrasion of a top sealing ring and a bottom sealing ring and improve the tightness of a valve body when in use.

(II) technical scheme

In order to solve the technical problems, the utility model provides a valve cavity structure of an electric plug valve, which comprises a valve body and a flange plate, wherein the flange plate is integrally formed at two ends of the valve body;

the top stop gear and the bottom stop gear all include spacing collar, lower spacing collar, step, sealing ring and No. two sealing rings, spacing collar integrated into one piece is in last spacing collar below down, and go up spacing collar diameter and be less than the diameter of spacing collar down, and go up spacing collar and spacing collar junction formation step down, no. one sealing ring activity inlays and establishes at last spacing collar inner wall, no. two sealing rings activity inlay and establish at spacing collar inner wall down.

Preferably, the bottom limit mechanism has a diameter smaller than the diameter of the top limit mechanism.

Preferably, the inner wall of the upper limit ring is provided with a first limit ring groove, and the first seal ring is embedded in the first limit ring groove.

Preferably, the inner wall of the lower limit ring is provided with a second limit ring groove, and the second seal ring is embedded in the second limit ring groove.

Preferably, the inner wall of the cylindrical valve cavity is embedded with a top sealing ring and a bottom sealing ring, and the top sealing ring and the bottom sealing ring are positioned on two sides of the valve body channel.

Preferably, a valve cover is arranged at the top of the valve body, and a valve rod is arranged in a penetrating and rotating manner at the center of the surface of the valve cover.

The technical scheme of the utility model has the following beneficial technical effects:

1. according to the utility model, the top sealing ring and the bottom sealing ring are contacted with the surface of the valve core, so that the valve core can be sealed, water can be prevented from penetrating to two ends of the valve core, the first sealing ring is embedded in the first limiting ring groove, the second sealing ring is embedded in the second limiting ring groove, the joint between the end part of the valve core and the top and bottom of the cylindrical valve cavity can be sealed by mutually matching the first sealing ring and the second sealing ring, and the sealing effect of the valve body in use can be effectively improved by mutually matching a plurality of groups of sealing structures.

2. According to the utility model, the joint of the upper limit ring and the lower limit ring forms a step, when the valve core is installed, the raised part on the surface of the valve core is matched with the step, so that the limit effect on the two ends of the valve core can be improved, and the diameter of the top limit mechanism is larger than that of the bottom limit mechanism, so that the valve core can be conveniently inserted into the inner cavities of the top limit mechanism and the bottom limit mechanism, the coaxiality of the valve core can be improved when the valve core rotates by improving the limit precision on the two ends of the valve core, the abrasion on the top seal ring and the bottom seal ring can be reduced, and the tightness of the valve body can be improved when the valve body is used.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is an exploded view of the limiting mechanism of the present utility model.

Reference numerals:

1. a valve body; 2. a flange plate; 3. a valve cover; 4. a valve stem; 5. a cylindrical valve cavity; 6. a top seal ring; 7. a bottom sealing ring; 8. a top limit mechanism; 81. an upper limit ring; 82. a lower limit ring; 83. a step; 84. a first limit ring groove; 85. a first sealing ring; 86. a second limit ring groove; 87. a second seal ring; 9. and a bottom limit mechanism.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

As shown in fig. 1-3, the valve cavity structure of the electric plug valve provided by the utility model comprises a valve body 1 and a flange plate 2, wherein the flange plate 2 is integrally formed at two ends of the valve body 1, a cylindrical valve cavity 5 is arranged in an inner cavity of the valve body 1, a top limiting mechanism 8 is arranged at the top of the inner cavity of the cylindrical valve cavity 5, and a bottom limiting mechanism 9 is arranged at the bottom of the inner cavity of the cylindrical valve cavity 5;

the top stop gear 8 and the bottom stop gear 9 all include stop collar 81, lower stop collar 82, step 83, a sealing ring 85 and No. two sealing rings 87, lower stop collar 82 integrated into one piece is in last stop collar 81 below, and go up stop collar 81 diameter and be less than the diameter of stop collar 82 down, and go up stop collar 81 and lower stop collar 82 junction and form step 83, a sealing ring 85 activity is inlayed and is established in last stop collar 81 inner wall, no. two sealing rings 87 activity are inlayed and are established in lower stop collar 82 inner wall.

It should be noted that, the junction of the upper limit ring 81 and the lower limit ring 82 forms a step 83, when the valve core is installed, the bulge on the surface of the valve core is matched with the step 83, so that the limit effect on two ends of the valve core can be improved, and the diameter of the top limit mechanism 8 is larger than that of the bottom limit mechanism 9, so that the valve core can be conveniently inserted into the inner cavities of the top limit mechanism 8 and the bottom limit mechanism 9, the coaxiality of the valve core can be improved when the valve core rotates through improving the limit precision on two ends of the valve core, the abrasion on the top seal ring 6 and the bottom seal ring 7 can be reduced, and the tightness of the valve body 1 in use can be improved.

As shown in fig. 2, the bottom limit mechanism 9 has a smaller diameter than the top limit mechanism 8.

It should be noted that, the diameter of the top limiting mechanism 8 is larger than that of the bottom limiting mechanism 9, so that the valve core can be conveniently inserted into the inner cavities of the top limiting mechanism 8 and the bottom limiting mechanism 9.

As shown in fig. 3, the inner wall of the upper limit ring 81 is provided with a first limit ring groove 84, the first seal ring 85 is embedded in the first limit ring groove 84, the inner wall of the lower limit ring 82 is provided with a second limit ring groove 86, and the second seal ring 87 is embedded in the second limit ring groove 86.

It should be noted that, the sealing ring 85 is embedded in the first limiting ring groove 84, the sealing ring 87 is embedded in the second limiting ring groove 86, the joint between the end part of the valve core and the top and the bottom of the cylindrical valve cavity 5 can be sealed by mutually matching the sealing ring 85 and the second sealing ring 87, and the sealing effect of the valve body 1 in use can be effectively improved by mutually matching multiple groups of sealing structures.

As shown in fig. 2, a top sealing ring 6 and a bottom sealing ring 7 are embedded in the inner wall of the cylindrical valve cavity 5, and the top sealing ring 6 and the bottom sealing ring 7 are located on two sides of the channel of the valve body 1.

The top sealing ring 6 and the bottom sealing ring 7 are in contact with the surface of the valve core, so that the valve core can be sealed, and water can be prevented from penetrating to two ends of the valve core.

As shown in fig. 1, a valve cover 3 is arranged at the top of the valve body 1, and a valve rod 4 is arranged at the center of the surface of the valve cover 3 in a penetrating and rotating manner.

The valve cap 3 is used for fixing the valve rod 4, and the valve core can be driven through the valve rod 4 so as to control the opening and closing of the valve body 1.

The working principle and the using flow of the utility model are as follows: the two ends of the valve body 1 are respectively connected with a pipeline through the flange plate 2, wherein a cylindrical valve cavity 5 is arranged in the inner cavity of the valve body 1, a top sealing ring 6 and a bottom sealing ring 7 are respectively embedded in two sides of a channel of the cylindrical valve cavity 5, the two sides of the channel of the cylindrical valve cavity are contacted with the surfaces of the valve core through the top sealing ring 6 and the bottom sealing ring 7, sealing effect of the valve core can be achieved when the valve core rotates, water liquid can be prevented from penetrating into two ends of the valve core, meanwhile, the top and bottom of the inner cavity of the cylindrical valve cavity 5 are respectively provided with a top limiting mechanism 8 and a bottom limiting mechanism 9, a step 83 is formed at the joint of the upper limiting ring 81 and the lower limiting ring 82, the bulge of the surface of the valve core is matched with the step 83 when the valve core is installed, the limiting effect of the two ends of the valve core can be improved, the diameter of the top limiting mechanism 8 is larger than the diameter of the bottom limiting mechanism 9, the valve core can be conveniently inserted into the inner cavity of the top limiting mechanism 8 and the bottom limiting mechanism 9, the coaxiality of the valve core can be improved when the valve core rotates through the improvement, the abrasion of the top sealing ring 6 and the bottom sealing ring 7 can be improved, the sealing effect of the valve body 1 when in use is improved, the first sealing ring 85 is embedded in the first sealing ring groove 84, the second sealing ring is matched with the second sealing ring 86 in the sealing ring groove, the second sealing ring is matched with the second sealing ring 85, the second sealing ring and the second sealing ring is matched with the second sealing ring in the sealing ring 5, and the sealing ring, the sealing ring in the sealing groove 1 through the sealing ring.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims or the equivalents of such scope and boundary.

Claims

1. The valve cavity structure of the electric plug valve comprises a valve body (1) and a flange plate (2), wherein the flange plate (2) is integrally formed at two ends of the valve body (1), and the electric plug valve is characterized in that a cylindrical valve cavity (5) is arranged in an inner cavity of the valve body (1), a top limiting mechanism (8) is arranged at the top of the inner cavity of the cylindrical valve cavity (5), and a bottom limiting mechanism (9) is arranged at the bottom of the inner cavity of the cylindrical valve cavity (5);

the top stop gear (8) and bottom stop gear (9) all include spacing collar (81), lower spacing collar (82), step 83 (83), no. one sealing ring (85) and No. two sealing rings (87), spacing collar (82) integrated into one piece is in last spacing collar (81) below down, and go up spacing collar (81) diameter and be less than the diameter of spacing collar (82) down, and go up spacing collar (81) and spacing collar (82) junction down and form step 83 (83), no. one sealing ring (85) activity is inlayed and is established in spacing collar (81) inner wall down, no. two sealing rings (87) activity are inlayed and are established in spacing collar (82) inner wall down.

2. Valve cavity structure of an electric plug valve according to claim 1, characterized in that the bottom limit means (9) has a smaller diameter than the top limit means (8).

3. The valve cavity structure of the electric plug valve according to claim 1, wherein the inner walls of the upper limit rings (81) are provided with a first limit ring groove (84), and the first seal ring (85) is embedded in the first limit ring groove (84).

4. The valve cavity structure of the electric plug valve according to claim 1, wherein the inner walls of the lower limit rings (82) are provided with No. two limit ring grooves (86), and No. two seal rings (87) are embedded in No. two limit ring grooves (86).

5. The valve cavity structure of the electric plug valve according to claim 1, wherein a top sealing ring (6) and a bottom sealing ring (7) are embedded in the inner wall of the cylindrical valve cavity (5), and the top sealing ring (6) and the bottom sealing ring (7) are located at two sides of a channel of the valve body (1).

6. The valve cavity structure of the electric plug valve according to claim 1, wherein a valve cover (3) is arranged at the top of the valve body (1), and a valve rod (4) is arranged at the center of the surface of the valve cover (3) in a penetrating and rotating manner.