Blind plate valve with special structure

Abstract

The utility model relates to a blind plate valve with a special structure, which aims to solve the technical problem that the sealing effect becomes poor due to the fact that a gap is easy to generate at the joint of an aged sealing ring and the inner wall of an opening at present, and comprises a valve body and a sealing structure, and a valve plate is arranged on the valve body; the sealing structure is arranged at the opening of the valve plate; the sealing structure comprises a connecting assembly and a sealing ring. The connecting assembly is arranged on the inner wall of the opening of the valve plate; the sealing ring is clamped and matched with the connecting assembly; the connecting assembly comprises a fixing ring and a clamping ring; the fixing ring is fixedly arranged on the inner wall of the opening of the valve plate; the clamping ring is fixedly arranged on the inner ring wall of the fixing ring; wherein the fixing ring and the clamping ring are integrally formed; wherein the cross section of the clamping ring is set to be T-shaped, the clamping ring is clamped and matched with an annular clamping groove with a T-shaped cross section formed in the outer ring of the sealing ring, and the sealing ring has the advantages that the clamping surface at the clamping position of the sealing ring is in a broken line shape, and the sealing effect is enhanced through multi-surface clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of blind plate valves, in particular to a blind plate valve with a special structure. Background Art

[0002] Blind valve is a gate valve that is manually, electrically, pneumatically or hydraulically operated to cut off gas media. It is generally divided into electric blind valve, hydraulic blind valve, pneumatic blind valve, closed plug valve and electric open blind valve.

[0003] The valve plate of the blind plate valve adopts a fan-shaped structure, with one end for sealing and the other end open for circulation. A sealing ring is arranged at the opening to play a sealing role. The sealing ring at the opening of the existing valve plate has a single structure, and a gap is easily generated at the connection between the sealing ring and the inner wall of the opening after aging, resulting in a poor sealing effect.

[0004] In view of this, we propose a blind plate valve with a special structure. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a blind plate valve with a special structure to solve the technical problem that a gap is easily generated at the connection between the sealing ring and the inner wall of the opening after aging, resulting in poor sealing effect.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a blind plate valve with a special structure, including a valve body, a valve plate arranged on the valve body, and also including a sealing structure;

[0007] The sealing structure is arranged at the opening of the valve plate;

[0008] The sealing structure comprises a connecting component and a sealing ring;

[0009] The connecting assembly is arranged on the inner wall of the valve plate opening; the sealing ring is snap-fitted with the connecting assembly.

[0010] Preferably, the connection assembly comprises a fixing ring and a clamping ring;

[0011] The fixing ring is fixed on the inner wall of the opening of the valve plate; the clamping ring is fixed on the inner wall of the fixing ring; wherein the fixing ring and the clamping ring are integrally formed; wherein the cross section of the clamping ring is T-shaped, and the clamping ring is clamped into a T-shaped annular groove with an outer ring of the sealing ring.

[0012] Preferably, two inner side walls at the opening of the annular clamping groove are respectively provided with rubber rings, and the rubber rings are plugged into and matched with the annular slots provided on the outer rings at both sides of the clamping ring.

[0013] Preferably, the cross section of the rubber ring is set to be a semicircle, and the rubber ring is adapted to the annular slot.

[0014] Preferably, both sides of the sealing ring are respectively configured as arc-shaped surfaces; wherein the arc-shaped surfaces are arched and face outwards.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model provides a connection assembly and a sealing ring, and has the advantages that the clamping surface of the sealing ring clamping part is in a broken line shape, and the multi-faceted clamping strengthens the sealing effect, thereby solving the problem that a gap is easily generated at the connection between the sealing ring and the inner wall of the opening after aging, resulting in a deterioration of the sealing effect.

[0017] 2. The utility model has the advantages of providing a layer of sealing in the outer ring area of ​​the sealing ring by providing a rubber ring and an annular slot, so as to position the sealing ring and enhance the sealing performance of the sealing ring at the same time.

[0018] 3. The utility model has the advantage of providing an arcuate surface, so that when the valve plate opening area is rotated into the valve body for conduction, the arcuate surface of the sealing ring is squeezed so that the sealing ring abuts against the clamping ring, making the connection tighter and the sealing effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the sealing structure of the utility model;

[0021] Figure 3 This is a schematic diagram of an exploded sectional view of the sealing structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 A magnified schematic diagram of point A;

[0023] In the figure: 1. valve body; 2. valve plate; 3. sealing structure;

[0024] 301, connecting assembly; 302, sealing ring;

[0025] 3011, fixing ring; 3012, snap ring; 3013, annular slot;

[0026] 3021. annular groove; 3022. rubber ring; 3023. arc surface. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] Example 1: A special structure blind plate valve, see Figures 1 to 4, including a valve body 1, the valve body 1 can be connected to a driving mechanism (not shown in the figure), a valve plate 2 is arranged on the valve body 1, and also includes a sealing structure 3; the sealing structure 3 is arranged at the opening of the valve plate 2; the sealing structure 3 includes a connecting component 301 and a sealing ring 302; the connecting component 301 is arranged on the inner wall of the opening of the valve plate 2; the sealing ring 302 is engaged with the connecting component 301. The utility model has the advantages of a snap-fit ​​surface at the snap-fit ​​of the sealing ring 302 being in a broken line shape, and multi-faceted snap-fitting to enhance the sealing effect, and solves the problem that a gap is easily generated at the connection between the aged rubber ring and the inner wall of the opening, resulting in a poor sealing effect.

[0029] Specifically, the connection assembly 301 includes a fixing ring 3011 and a clamping ring 3012; the fixing ring 3011 is fixed to the inner wall of the opening of the valve plate 2; the clamping ring 3012 is fixed to the inner wall of the fixing ring 3011; wherein the fixing ring 3011 and the clamping ring 3012 are integrally formed; wherein the cross section of the clamping ring 3012 is set to be T-shaped, and the clamping ring 3012 is clamped and matched with the annular clamping groove 3021 with a T-shaped cross section provided on the outer ring of the sealing ring 302. The utility model has the advantages of forming a T-shaped sealing surface at the connection point by setting the fixing ring 3011 and the clamping ring 3012, so that the clamping ring 3012 and the annular clamping groove 3021 are clamped, so that the sealing effect is better.

[0030] Furthermore, rubber rings 3022 are respectively provided on the two inner side walls of the opening of the annular clamping groove 3021, and the rubber rings 3022 are plugged and matched with the annular slots 3013 provided on the outer rings of the two sides of the clamping ring 3012; the cross section of the rubber ring 3022 is set as a semicircle, and the rubber ring 3022 is adapted to the annular slots 3013. The utility model has the advantages of providing a layer of sealing in the outer ring area of ​​the sealing ring 302, positioning the sealing ring 302 and strengthening the sealing performance of the sealing ring 302 by providing the rubber ring 3022 and the annular slots 3013.

[0031] Furthermore, arcuate surfaces 3023 are respectively provided on both sides of the sealing ring 302, wherein the arcuate surfaces 3023 are arched and face outward. By providing the arcuate surfaces 3023, the utility model has the advantages that when the opening area of ​​the valve plate 2 is rotated into the valve body 1 for conduction, the arcuate surfaces 3023 of the sealing ring 302 are squeezed so that the sealing ring 302 abuts against the clamping ring 3012, making the connection more compact and having a good sealing effect.

[0032] Working principle: When the device of the utility model is used, when the opening area of ​​the valve plate 2 is rotated into the valve body 1 for conduction, the arc surface 3023 of the sealing ring 302 is squeezed so that the sealing ring 302 abuts against the clamping ring 3012, and the medium passes through the valve body 1 and the opening of the valve plate 2. The rubber ring 3022 is plugged into the annular slot 3013, and a layer of sealing is provided in the outer ring area of ​​the sealing ring 302, which positions the sealing ring 302 and strengthens the sealing performance of the sealing ring 302; the clamping connection between the clamping ring 3012 and the annular clamping groove 3021 forms a T-shaped sealing surface at the connection, and the multi-faceted clamping connection strengthens the sealing effect.

[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A blind plate valve with a special structure, comprising a valve body (1), on which a valve plate (2) is arranged, characterized in that: Also includes: A sealing structure (3) arranged at the opening of the valve plate (2); The sealing structure (3) comprises: A connecting component (301) is arranged on the inner wall of the opening of the valve plate (2); The sealing ring (302) is snap-fitted with the connecting assembly (301).

2. A blind plate valve with a special structure as claimed in claim 1, characterized in that: The connection component (301) comprises: A fixing ring (3011) fixedly mounted on the inner wall of the opening of the valve plate (2); A clamping ring (3012) is fixedly mounted on the inner wall of the fixing ring (3011); Wherein, the fixing ring (3011) and the clamping ring (3012) are integrally formed; The cross section of the snap ring (3012) is set to be T-shaped, and the snap ring (3012) is snap-fitted with an annular snap groove (3021) with a T-shaped cross section provided on the outer ring of the sealing ring (302).

3. A blind plate valve with a special structure as claimed in claim 2, characterized in that: The two inner side walls at the opening of the annular clamping groove (3021) are respectively provided with rubber rings (3022), and the rubber rings (3022) are plugged into and matched with the annular slots (3013) provided on the outer rings of both sides of the clamping ring (3012).

4. A special structure blind plate valve as claimed in claim 3, characterized in that: The cross section of the rubber ring (3022) is set to be a semicircle, and the rubber ring (3022) is adapted to the annular slot (3013).

5. A blind plate valve with a special structure as claimed in claim 2, characterized in that: Both sides of the sealing ring (302) are respectively configured as arc-shaped surfaces (3023); Wherein, the arcuate surface (3023) is arched and faces outward.

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