CN203641591U - Novel check valve - Google Patents

Novel check valve Download PDF

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Publication number
CN203641591U
CN203641591U CN201320746253.4U CN201320746253U CN203641591U CN 203641591 U CN203641591 U CN 203641591U CN 201320746253 U CN201320746253 U CN 201320746253U CN 203641591 U CN203641591 U CN 203641591U
Authority
CN
China
Prior art keywords
ring
groove
pipe
flange plate
annular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320746253.4U
Other languages
Chinese (zh)
Inventor
黄燕民
Original Assignee
黄燕民
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黄燕民 filed Critical 黄燕民
Priority to CN201320746253.4U priority Critical patent/CN203641591U/en
Application granted granted Critical
Publication of CN203641591U publication Critical patent/CN203641591U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a novel check valve which comprises a pipe body I, a pipe body II, a sealing gasket and steel plates, wherein the pipe body I is provided with a flange plate I and a flange plate II; the pipe body II is butted with the pipe body I, a flange plate III and a flange plate IV are arranged at the two ends of the pipe body II respectively, and the flange plate III and the flange plate II are matched with each other; the sealing gasket is mounted between the pipe body I and the pipe body II and provided with a ring-shaped opening part, the sealing gasket is divided into an inner ring and an outer ring by the ring-shaped opening part, and the joint of the inner ring and the outer ring is located on a circular ring I where the ring-shaped opening part is located; the steel plates are mounted on two sides of the inner ring of the sealing gasket, a ring-shaped convex part with a ring-shaped groove I is arranged on the end surface, facing the pipe body II, of the pipe body I, a ring-shaped concave part matched with the ring-shaped convex part is arranged on the end surface, facing the pipe body I, of the pipe body II, the ring-shaped concave part is provided with a groove II matched with the groove I, and a flexible sealing piece is mounted between the groove I and the groove II. The ring-shaped convex part on the end surface of the pipe body I and the ring-shaped concave part of the pipe body II are matched with each other and combined with the sealing piece to form a sealing structure which can effectively improve the airtight performance of the whole valve.

Description

A kind of non-return valve
Technical field
The utility model relates to valve field, especially relates to a kind of non-return valve.
Background technique
Large aperture safety check for hot and cold industry water pipe network adopts foundry goods valve body conventionally, in use easily there is the undesirable problem of sealing, the valve body particularly assembling with two docking bodys, after assembling, in using process, there is the not firm situation of end face seal between the two, this has a strong impact on its using effect for user.
Model utility content
The purpose of this utility model is exactly in order to address the above problem, and a kind of non-return valve is provided.
To achieve these goals, the utility model adopts following technological scheme:
A kind of non-return valve, it comprises:
Body one (1), two end is respectively equipped with flange plate one, two;
The body two (2) that butts up against body one, two end is respectively equipped with flange plate three, four, and described flange plate three cooperatively interacts with flange plate two;
Be installed on the sealing gasket (3) between body one, body two, sealing spacer has annular opening portion (3 '), and sealing gasket is divided into inner ring and outer ring by annular opening portion, and the attachment portion of inner ring and outer ring is on annular opening portion annulus one of living in;
Be installed on the steel plate (4) of sealing gasket inner ring both sides, it is characterized in that, described body one has annular protrusion (5) towards the end face of body two, there is annular groove one at bump, described body two has the annular recess coordinating with annular protrusion towards the end face of body one, this annular recess has a groove two coordinating with groove one, and flexible seals (6) is installed between described groove one, groove two.
The groove depth of described groove one is greater than the groove depth of groove one.
The cross section of described annular protrusion is square, trapezoidal.
The utlity model has following beneficial effect: coordinate the annular recess of body two combination seal part and the sealing configuration that forms can effectively promote the airtight performance of whole valve by the annular protrusion that is arranged on body one end face.
Brief description of the drawings
A kind of non-return valve structural representation of Fig. 1.
Fig. 2 is I place enlarged view in Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1 and Figure 2, a kind of non-return valve, it comprises: body 1, two end is respectively equipped with flange plate one, two; Butt up against the body 22 of body one, two end is respectively equipped with flange plate three, four, and described flange plate three cooperatively interacts with flange plate two; Be installed on the sealing gasket 3 between body one, body two, sealing spacer have annular opening portion 3 ', sealing gasket is divided into inner ring and outer ring by annular opening portion, the attachment portion of inner ring and outer ring is on annular opening portion annulus one of living in, particularly, annular opening portion accounts for the 2/3-5/6 of whole annulus one, and remainder is the shared part in attachment portion, and attachment portion is the tip position of close valve body substantially; Be installed on sealing gasket inner ring both sides and play the steel plate 4 of counterweight effect, can install by bolt, described body one has annular protrusion 5 towards the end face of body two, there is annular groove one at bump, described body two has the annular recess coordinating with annular protrusion towards the end face of body one, this annular recess has a groove two coordinating with groove one, between described groove one, groove two, flexible seals 6 is installed, such as rubber seal.
For ease of body one, two, at the convenience of installing in Sealing process, the groove depth of described groove one is greater than the groove depth of groove one, is more prone to installation in position, and does not affect obturation effect in the process of embedding sealing part.
In the problem in the cross section of described annular protrusion, the profile of the rule such as be preferably square, trapezoidal.
The foregoing is only preferred implementation of the present utility model, protection domain of the present utility model is not limited in above-mentioned mode of execution, and every technological scheme that belongs to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvement of carrying out under the prerequisite that does not depart from principle of the present utility model, these improve and also should be considered as protection domain of the present utility model.

Claims (3)

1. a non-return valve, it comprises:
Body one (1), two end is respectively equipped with flange plate one, two;
The body two (2) that butts up against body one, two end is respectively equipped with flange plate three, four, and described flange plate three cooperatively interacts with flange plate two;
Be installed on the sealing gasket (3) between body one, body two, sealing spacer has annular opening portion (3 '), and sealing gasket is divided into inner ring and outer ring by annular opening portion, and the attachment portion of inner ring and outer ring is on annular opening portion annulus one of living in;
Be installed on the steel plate (4) of sealing gasket inner ring both sides, it is characterized in that, described body one has annular protrusion (5) towards the end face of body two, there is annular groove one at bump, described body two has the annular recess coordinating with annular protrusion towards the end face of body one, this annular recess has a groove two coordinating with groove one, and flexible seals (6) is installed between described groove one, groove two.
2. a kind of non-return valve according to claim 1, is characterized in that, the groove depth of described groove one is greater than the groove depth of groove one.
3. a kind of non-return valve according to claim 1, is characterized in that, the cross section of described annular protrusion is square, trapezoidal.
CN201320746253.4U 2013-11-25 2013-11-25 Novel check valve Expired - Fee Related CN203641591U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320746253.4U CN203641591U (en) 2013-11-25 2013-11-25 Novel check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320746253.4U CN203641591U (en) 2013-11-25 2013-11-25 Novel check valve

Publications (1)

Publication Number Publication Date
CN203641591U true CN203641591U (en) 2014-06-11

Family

ID=50872836

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320746253.4U Expired - Fee Related CN203641591U (en) 2013-11-25 2013-11-25 Novel check valve

Country Status (1)

Country Link
CN (1) CN203641591U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443810A (en) * 2014-08-29 2016-03-30 杨春 Flange type plate check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443810A (en) * 2014-08-29 2016-03-30 杨春 Flange type plate check valve

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140611

Termination date: 20141125

EXPY Termination of patent right or utility model