Water source valve seat supporting mechanism applied to CVD (Chemical Vapor Deposition)

Abstract

The utility model discloses a water source valve seat supporting mechanism applied to CVD (chemical vapor deposition), which belongs to the technical field of valve seats and comprises a valve seat body, a supporting screw is fixed at one end of the valve seat body, a filling abutting mechanism is arranged on the surface of the supporting screw, and the filling abutting mechanism comprises a sealing sleeve, an extrusion filling shell and an annular extrusion groove. The outer surface of the valve seat body is sleeved with the sealing sleeve, the annular extrusion groove is formed in the sealing sleeve, the extrusion filling shell is arranged on one side of the valve seat body, and an end sealing gasket is fixed to the inner end wall of the extrusion filling shell; by means of the filling abutting mechanism, the filling shell is extruded to fill the annular extrusion groove, extrusion force can be applied to the sealing sleeve so that the sealing sleeve can be tightly attached to the valve seat body, and the good sealing performance is guaranteed; and meanwhile, the extrusion filling shell forms a framework structure for straightening and supporting the sealing sleeve in the annular extrusion groove of the sealing sleeve, so that the condition that the flexible sealing sleeve is easy to wrinkle and shrink and deform after being used for a long time can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of valve seat technology, and specifically relates to a water source valve seat support mechanism applied to CVD. Background Technology

[0002] The valve seat is a key component of a valve, used to control fluid flow and provide sealing. It is a cavity on the valve body that works with the valve disc to form a sealing structure. The main function of the valve seat is to control the flow of fluid by changing the gap between the sealing surfaces through its interaction with the valve disc, allowing the medium in the pipeline to be fully open or fully closed. The application of CVD technology in water source valve seats mainly involves utilizing its superior performance to strengthen the valve seat surface, improving its resistance to erosion and wear, and enhancing its operational stability. Chinese patent application number 202022447626.0 describes a ball valve seat fixing structure, including a valve seat support ring. A toothed positioning groove is provided on the right side of the inner surface of the valve seat support ring. A valve seat is located inside the valve seat support ring, and a toothed positioning block is provided on the surface of the valve seat. From left to right, the surface of the valve seat support ring is provided with a first groove, a second groove, and a third groove. This invention utilizes the cooperation of a valve seat support ring, a toothed positioning groove, a valve seat, and a toothed positioning block. The valve seat is placed within the valve seat support ring, compressing the valve seat sealing ring and ensuring a tight fit between the toothed positioning block and the toothed positioning groove. This prevents the valve seat from moving within the valve seat support ring during operation, significantly increasing the sealing reliability of the valve seat support ring and toothed positioning block. It also enables the valve to withstand higher pressures, making it suitable for high-pressure environments and improving the sealing effect, thus solving the problem of poor sealing performance in existing devices.

[0003] In the above technical solution, the toothed positioning block and the toothed positioning groove fit tightly together to prevent the valve seat from moving within the valve seat support ring during valve operation. The premise of achieving sealing is that the valve seat squeezes the valve seat sealing ring. However, after a period of use, the sealing ring is prone to wear and loss of elasticity. Thus, it is difficult for the sealing ring to ensure a tight fit with the valve seat and achieve a good sealing and supporting effect. In addition, the valve seat uses an end support screw and a threaded seal with the valve body. The threaded seal method is prone to loosening, which leads to a decrease in sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide a water source valve seat support mechanism for CVD to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water source valve seat support mechanism for CVD, comprising a valve seat body, a support screw fixed to one end of the valve seat body, a filling and abutting mechanism provided on the surface of the support screw, the filling and abutting mechanism comprising a sealing sleeve, a compression filling shell and an annular compression groove, the sealing sleeve being fitted onto the outer surface of the valve seat body, the annular compression groove being formed inside the sealing sleeve, the compression filling shell being disposed on one side of the valve seat body, an end sealing gasket being fixed to the inner end wall of the compression filling shell, and a locking knob being provided on one side of the compression filling shell.

[0006] It should be noted in the solution that the extrusion filling shell is embedded in the annular extrusion groove of the sealing sleeve, and the sealing sleeve is fixed to the inner wall of the valve body.

[0007] It is worth noting that the side of the extrusion filling shell is provided with a clearance opening, and the extrusion filling shell is sealed and inserted into the valve body.

[0008] Furthermore, it should be noted that a through hole is provided on one end face of the extrusion filling shell, and the through hole of the extrusion filling shell is sleeved on the support screw.

[0009] In a preferred embodiment, a positioning opening is provided at the center of one end face of the end sealing gasket, and the positioning opening of the end sealing gasket is sleeved on the support screw.

[0010] In a preferred embodiment, the support screw is threaded onto the valve body, the valve seat body is embedded in the valve body, and the locking knob is threaded onto the support screw.

[0011] Compared with the prior art, the water source valve seat support mechanism for CVD provided by this utility model has at least the following beneficial effects:

[0012] Through the designed filling and abutting mechanism, the extrusion filling shell fills the annular extrusion groove, which can apply extrusion force to the sealing sleeve, making the sealing sleeve adhere tightly to the valve seat body and ensuring good sealing performance. At the same time, the extrusion filling shell forms a skeleton structure in the annular extrusion groove of the sealing sleeve to straighten and support the sealing sleeve, which can improve the situation where the flexible sealing sleeve is prone to wrinkling and shrinkage deformation under long-term use.

[0013] By using the extrusion filling shell and end sealing gasket, after the extrusion filling shell is installed on the valve body, the extrusion filling shell is pressed tightly against the outside of the connection between the support screw and the valve body by the end sealing gasket. This adds a leak-proof safety structure to the outside of the thread seal between the support screw and the valve body, and the extrusion filling shell pressing the valve body also has the effect of reinforcing and supporting the valve seat body. Attached Figure Description

[0014] Figure 1This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a perspective view of the extrusion-filled shell structure of this utility model;

[0016] Figure 3 This is a perspective view of the sealing sleeve structure of this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional view of the extrusion filling shell and sealing sleeve of this utility model.

[0018] In the diagram: 1. Valve seat body; 2. Support screw; 3. Sealing sleeve; 4. Annular extrusion groove; 5. Extrusion filling shell; 6. Displacement port; 7. Through hole; 8. Locking knob; 9. End sealing gasket; 10. Positioning port. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Please see Figure 1-4 This utility model provides a water source valve seat support mechanism for CVD, including a valve seat body 1. One end of the valve seat body 1 is fixed with a support screw 2. The surface of the support screw 2 is provided with a filling and abutting mechanism. The filling and abutting mechanism includes a sealing sleeve 3, a compression filling shell 5 and an annular compression groove 4. The sealing sleeve 3 is sleeved on the outer surface of the valve seat body 1. The annular compression groove 4 is opened inside the sealing sleeve 3. The compression filling shell 5 is provided on one side of the valve seat body 1. An end sealing gasket 9 is fixed on the inner end wall of the compression filling shell 5. A locking knob 8 is provided on one side of the compression filling shell 5.

[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the extrusion filling shell 5 is embedded in the annular extrusion groove 4 of the sealing sleeve 3, and the sealing sleeve 3 is fixed on the inner wall of the valve body.

[0022] Further as Figure 3 As shown, it is worth noting that the side of the extrusion filling shell 5 is provided with a relief opening 6, and the extrusion filling shell 5 is sealed and inserted into the valve body.

[0023] This solution has the following working process: Before use, the valve seat body 1 is installed into the valve body. At this time, the support screw 2 is threaded in the threaded groove of the valve body. Then, the extrusion filling shell 5 is put onto the support screw 2. Subsequently, the extrusion filling shell 5 is sealed and embedded from the relief opening on the valve body. At this time, one end of the extrusion filling shell 5 enters the sealing sleeve 3 and fills the annular extrusion groove 4. The extrusion filling shell 5 filling the annular extrusion groove 4 can apply extrusion force to the sealing sleeve 3, so that the sealing sleeve 3 is tightly attached to the valve seat body 1 to ensure good sealing performance. At the same time, the extrusion filling shell 5 forms a skeleton structure in the annular extrusion groove 4 of the sealing sleeve 3 to straighten and support the sealing sleeve 3, which can improve the situation that the flexible sealing sleeve 3 is prone to wrinkling and shrinkage deformation under long-term use.

[0024] According to the above working process, the extrusion filling shell 5 fills the annular extrusion groove 4, which can apply extrusion force to the sealing sleeve 3 so that the sealing sleeve 3 is close to the valve seat body 1 and ensures good sealing performance. At the same time, the extrusion filling shell 5 forms a skeleton structure in the annular extrusion groove 4 of the sealing sleeve 3 to straighten and support the sealing sleeve 3, which can improve the situation that the elastic sealing sleeve 3 is prone to wrinkling and shrinkage deformation under long-term use.

[0025] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that a through hole 7 is provided on one end face of the extrusion filling shell 5, and the through hole 7 of the extrusion filling shell 5 is sleeved on the support screw 2.

[0026] Further as Figure 4 As shown, it is worth noting that a positioning port 10 is provided at the center of one end face of the end sealing gasket 9. The positioning port 10 of the end sealing gasket 9 is sleeved on the support screw 2. After the extrusion filling shell 5 is installed on the valve body, the locking knob 8 and the support screw 2 cooperate to make the extrusion filling shell 5 adhere tightly to the outside of the connection between the support screw 2 and the valve body using the end sealing gasket 9. This adds a leak-proof safety structure to the outside of the threaded seal between the support screw 2 and the valve body. In addition, the extrusion filling shell 5 pressing the valve body also has the effect of reinforcing and supporting the valve seat body 1.

[0027] Further as Figure 1 As shown, it is worth noting that the support screw 2 is threaded onto the valve body, the valve seat body 1 is embedded in the valve body, and the locking knob 8 is threaded onto the support screw 2.

[0028] In summary: The extrusion filler shell 5 fills the annular extrusion groove 4, which can apply extrusion force to the sealing sleeve 3, making the sealing sleeve 3 fit tightly against the valve seat body 1 and ensuring good sealing performance. At the same time, the extrusion filler shell 5 forms a skeleton structure in the annular extrusion groove 4 of the sealing sleeve 3 to straighten and support the sealing sleeve 3, which can improve the situation where the flexible sealing sleeve 3 is prone to wrinkling and shrinkage deformation under long-term use. After the extrusion filler shell 5 is installed on the valve body, the extrusion filler shell 5 uses the end sealing gasket 9 to fit tightly against the outside of the connection between the support screw 2 and the valve body. This can add a leak-proof safety structure to the outside of the thread seal between the support screw 2 and the valve body, and the extrusion filler shell 5 pressing the valve body also has the effect of reinforcing and supporting the valve seat body 1.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water source valve seat support mechanism for CVD, comprising a valve seat body (1), characterized in that: One end of the valve seat body (1) is fixed with a support screw (2). The surface of the support screw (2) is provided with a filling and abutting mechanism. The filling and abutting mechanism includes a sealing sleeve (3), a compression filling shell (5) and an annular compression groove (4). The sealing sleeve (3) is fitted on the outer surface of the valve seat body (1). The annular compression groove (4) is opened inside the sealing sleeve (3). The compression filling shell (5) is set on one side of the valve seat body (1). An end sealing gasket (9) is fixed on the inner end wall of the compression filling shell (5). A locking knob (8) is provided on one side of the compression filling shell (5).

2. The water source valve seat support mechanism for CVD according to claim 1, characterized in that: The extrusion filling shell (5) is embedded in the annular extrusion groove (4) of the sealing sleeve (3), and the sealing sleeve (3) is fixed on the inner wall of the valve body.

3. The water source valve seat support mechanism for CVD according to claim 2, characterized in that: The side of the extrusion filling shell (5) is provided with a relief opening (6), and the extrusion filling shell (5) is sealed and inserted into the valve body.

4. The water source valve seat support mechanism for CVD according to claim 3, characterized in that: One end face of the extrusion filling shell (5) is provided with a through hole (7), and the through hole (7) of the extrusion filling shell (5) is sleeved on the support screw (2).

5. The water source valve seat support mechanism for CVD according to claim 4, characterized in that: A positioning port (10) is provided at the center of one end face of the end sealing gasket (9), and the positioning port (10) of the end sealing gasket (9) is sleeved on the support screw (2).

6. The water source valve seat support mechanism for CVD according to claim 5, characterized in that: The support screw (2) is threaded onto the valve body, the valve seat body (1) is embedded in the valve body, and the locking knob (8) is threaded onto the support screw (2).

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