Angle seat valve reliable to use

Abstract

The angle seat valve reliable to use comprises a cylinder body and a lining arranged on the inner wall of the cylinder body, a placement position is reserved on the inner wall of the cylinder body, a matching ring is arranged at the bottom of the lining and corresponds to the placement position, sealing grooves are formed in the opposite side walls of the matching ring and the placement position, and a sealing groove is formed between the matching ring and the top wall of an end cover. A sealing ring is arranged in the sealing groove, and an annular protruding edge is arranged on the top of the lining. The lining structure is additionally arranged in the cylinder body, so that the sealing structure is machined on the lining, machining is convenient, the structure of the cylinder body cannot be greatly influenced, the appearance is more attractive, the strength is guaranteed, the sealing effect is better, and more cost is saved; the positioning effect is better, and the sealing effect is further improved; furthermore, the annular convex edge is arranged on the top wall of the lining, so that the area of surface contact is reduced and tends to line contact, the sealing effect is further improved, and the sealing performance is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valves, in particular to a reliable angle seat valve. BACKGROUND

[0002] The angle seat valve is a guide angle seat valve operated by a single-acting pneumatic actuator with spring safety protection. It is widely used in short-time frequent starting occasions, has the characteristics of space saving, sensitive reaction, accurate action and the like. The angle seat valve can be used in cooperation with a solenoid valve to accurately control the flow of gas and liquid through pneumatic control, so as to realize the functions of accurate temperature control and liquid drop.

[0003] In the use process of such a valve body, the sealing performance of the gas often needs to be ensured, so that the sealing effect of the cylinder body needs to be high. However, most of the cylinder bodies at present are made of stainless steel, which is difficult to form and has a great influence on production efficiency. On the other hand, the sealing of most angle seat valves in the prior art mainly relies on the sealing cylinder body, and the structure of the stainless steel cylinder body is heavy, so it is difficult to process the sealing structure and the cost is high.

[0004] Therefore, the prior art urgently needs a new type of angle seat valve structure which has good sealing effect, is convenient to form, has simple structure and is convenient to disassemble and assemble. CONTENT OF THE INVENTION

[0005] The application provides a reliable angle seat valve to solve the problems of difficult forming of the cylinder body structure of the angle seat valve, poor sealing effect and high cost in the prior art.

[0006] The technical scheme adopted by the application is as follows:

[0007] The application provides a reliable angle seat valve, which comprises a cylinder body and a bushing arranged on the inner wall of the cylinder body, the inner wall of the cylinder body is provided with a mounting position, the bottom of the bushing is provided with a matching ring, the matching ring corresponds to the mounting position, the side walls of the matching ring and the mounting position are both provided with sealing grooves, the matching ring and the top wall of the end cover are also provided with sealing grooves, sealing rings are arranged in the sealing grooves, and the top of the bushing is provided with an annular convex rib.

[0008] As a preferred embodiment of the application, the annular convex rib abuts against the inner top wall of the cylinder body, and the cross section of the annular convex rib is trapezoidal.

[0009] As a preferred embodiment of the application, the inner wall of the cylinder body is provided with a sliding groove, the surface of the bushing is provided with a sliding strip matched with the sliding groove, and the sliding strip and the sliding groove are in sliding cooperation.

[0010] As a preferred embodiment of the application, the cylinder body is of an aluminum structure, and the bushing is of a plastic structure.

[0011] As a preferred embodiment of the present application, a first notch is arranged on one side of the cooperating ring, a second notch is arranged on one side of the end cover, and the first notch and the second notch cooperate to form a sealing groove.

[0012] As a preferred embodiment of the present application, a clamping interface is arranged on the inner wall of the top of the cylinder body, and the clamping interface cooperates with the annular protrusion.

[0013] Thanks to the above technical scheme, the present application has the following technical effects:

[0014] The present application provides a reliable angle seat valve, which has a cylinder body and a bushing. The sealing work originally performed by the cylinder body in the prior art is now performed by the bushing. Since the cylinder body is difficult to machine and needs to have a certain strength to protect the internal piston structure, the present application adds a bushing structure to the cylinder body to machine the sealing structure on the bushing. This not only facilitates machining, but also does not greatly affect the structure of the cylinder body. The appearance is more beautiful, the strength is guaranteed, the sealing effect is better, and the cost is saved. Moreover, the cooperating ring of the bushing is modified. The sealing ring, which is difficult to position and needs to be squeezed to ensure sealing and positioning, is placed in the sealing groove of the bushing. This not only improves the positioning effect, but also further improves the sealing effect. Furthermore, the annular protrusion is arranged on the top wall of the bushing to reduce the area of surface contact and tend to line contact, thereby further improving the sealing effect and ensuring the sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and help to explain the present application, and are provided to interpret the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0016] Figure 1 The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and help to explain the present application, and are provided to interpret the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 2 The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and help to explain the present application, and are provided to interpret the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0018] Figure 3 The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and help to explain the present application, and are provided to interpret the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0019] Figure 4 The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and help to explain the present application, and are provided to interpret the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0020] Reference signs:

[0021] 10 cylinder; 11 bushing; 12 seating position; 13 mating ring; 14 sealing groove; 15 sealing ring; 16 slide; 17 slide groove; 18 annular protrusion; 19 piston. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concepts of the present application, the following will be described in detail with reference to the accompanying drawings.

[0023] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details and, therefore, the scope of the present application is not limited to the details disclosed in the following description.

[0024] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection, or can be communication; can be direct connection, or can be indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0027] As Figures 1 to 4As shown, the application provides a reliable angle seat valve, which comprises a cylinder body 10 and a bushing 11 arranged on the inner wall of the cylinder body 10, the inner wall of the cylinder body 10 is provided with a mounting position 12, the bottom of the bushing 11 is provided with a matching ring 13, the matching ring 13 corresponds to the mounting position 12, the side walls of the matching ring 13 and the mounting position 12 are both provided with a sealing groove 14, and the matching ring 13 and the top wall of the end cover are also provided with a sealing groove 14, the sealing groove 14 is provided with a sealing ring 15, and the top of the bushing 11 is provided with an annular convex rib 18.

[0028] As shown in the drawings, Figure 1 The overall structure of the angle seat valve is similar to the prior art, and the structure of the piston 19 in the interior is also the same as the principle and structure of the prior art, and the difference is mainly that, Figure 1 The inner wall of the cylinder body 10 is attached to the structure of the bushing 11.

[0029] For the cylinder body 10, the appearance structure similar to the prior art can be adopted, which presents a cylindrical structure with a gradient, and the structure of the bushing 11 can be regarded as a skirt added to the bottom of the cylindrical structure to facilitate the loading between the bushing 11 and the cylinder body 10.

[0030] Optionally, the cylinder body 10 is of aluminum structure, and the bushing 11 is of plastic structure; it can be understood that, compared with the stainless steel material in the prior art, the aluminum material is simpler to form and has lower quality, which is more convenient for processing the shape of the cylinder body 10 required by the angle seat valve; and the aluminum material itself has a certain strength, and the strength does not change much with the addition of the auxiliary bushing 11, and the entire cylinder body 10 structure is more difficult to deform due to the support inside the bushing 11.

[0031] Further, due to the inconvenience of forming and difficulty of processing of the original stainless steel valve body, the application adopts the structure of the plastic bushing 11 to realize the sealing function through the plastic bushing 11, which can reduce the installation of sealing strips and other sealing structures on the cylinder body 10 itself, improve the processing efficiency, and reduce the processing cost.

[0032] As a preferred embodiment of the application, as shown in the drawings, Figure 1 and Figure 2 The annular convex rib 18 abuts against the inner top wall of the cylinder body 10, and the cross section of the annular convex rib 18 is trapezoidal.

[0033] It can be understood that, in the original cylinder body 10 structure, since the sealing is mainly realized by the cylinder body 10, the processing and sealing effect are relatively difficult, and the cylinder body 10 and the valve cover are often combined through surface contact, which has a large contact area and is easy to cause long gaps, and these gaps are easy to cause gas or liquid leakage.

[0034] The application sets the annular ridge 18, so that the contact area between the top of the bushing 11 and the inner bottom wall of the cylinder body 10 is small, and tends to be linear contact. Because the contact area is small, the pressure concentration tends to be a line, which can generate higher pressure without causing large area damage, improving the service life. And the small contact surface can generate very high pressure at the contact position, which helps to form a very tight seal in the contact area, further improving the sealing effect.

[0035] Optionally, as shown in Figure 2 and Figure 3 , the annular ridge 18 is a convex structure around the top of the bushing 11. Because the bushing 11 itself is made of plastic material, it is convenient to process, so compared with the prior art, not only the processing cost is lower, but also the sealing effect is better, and the use is more convenient.

[0036] Further, in order to improve the sealing effect and the fixing effect, the inner wall of the top of the cylinder body 10 is provided with a clamping port, which cooperates with the annular ridge 18, so as to further improve the sealing performance and the fixing effect through the insertion between the clamping port and the annular ridge 18.

[0037] As a preferred embodiment of the application, as shown in Figure 3 and Figure 4 , the inner wall of the cylinder body 10 is provided with a sliding groove 17, and the surface of the bushing 11 is provided with a sliding strip 16 matched with the sliding groove 17. The sliding strip 16 and the sliding groove 17 are in sliding cooperation, so as to facilitate the assembly between the bushing 11 and the cylinder body 10. At the same time, the cooperation between the sliding groove 17 and the sliding strip 16 can also avoid the mutual sliding phenomenon between the bushing 11 and the cylinder body 10 as much as possible, and guarantee the reliability of use.

[0038] In an optional embodiment, the first notch is arranged on one side of the cooperating ring 13, and the second notch is arranged on one side of the end cover. The first notch and the second notch cooperate to form the sealing groove 14. It can be understood that through the cooperation of the first notch and the second notch, the sealing ring 15 can be better positioned, and the sealing effect can be further improved with small structure and engineering degree. In addition, the sealing groove 14 between the cooperating ring 13 and the top wall of the end cover can also be sealed in this way, further improving the sealing effect.

[0039] The places not mentioned in the application can be realized by adopting or referring to the existing technology.

[0040] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment focuses on the difference from other embodiments.

[0041] The above merely provides an example of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the scope of claims of the present application.

Claims

1. A reliable angle seat valve, characterized by, The angle seat valve comprises a cylinder body and a bushing arranged on the inner wall of the cylinder body, the inner wall of the cylinder body is provided with a mounting position, the bottom of the bushing is provided with a matching ring corresponding to the mounting position, the side walls of the matching ring and the mounting position are both provided with sealing grooves, the matching ring and the top wall of an end cover are also provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the top of the bushing is provided with an annular convex rib.

2. A reliable angle seat valve as claimed in claim 1, wherein, The annular convex rib abuts against the inner top wall of the cylinder body, and the cross section of the annular convex rib is trapezoidal.

3. A reliable angle seat valve as defined in claim 2 wherein, The inner wall of the cylinder body is provided with a sliding groove, and the surface of the bushing is provided with a sliding strip matched with the sliding groove, and the sliding strip and the sliding groove are in sliding fit.

4. A reliable angle seat valve as defined in claim 3 wherein, The cylinder body is of aluminum structure, and the bushing is of plastic structure.

5. A reliable angle seat valve as defined in claim 4 wherein, One side of the matching ring is provided with a first notch, one side of the end cover is provided with a second notch, and the first notch and the second notch are matched to form the sealing groove.

6. A reliable angle seat valve as defined in claim 5 wherein, The top inner wall of the cylinder body is provided with a clamping interface matched with the annular convex rib.

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