Valve structure with high sealing performance

Abstract

The utility model discloses a valve structure with high sealing performance, which belongs to the technical field of valves and comprises a valve body and connectors arranged at two ends of the valve body, limit grooves are arranged on the end face of the valve body and positioned on the outer sides of the connectors, annular support plates are arranged in the limit grooves in a sliding manner, and the outer sides of the annular support plates are attached to the inner sides of the limit grooves. And annular grooves for hiding the end parts of the annular supporting plates are formed in the inner end surfaces of the limiting grooves. The limiting groove is formed in the outer side of the connector, the annular supporting plate is slidably arranged in the limiting groove, the sealing gasket can be limited through the annular supporting plate, in addition, the air holes are evenly formed in the annular supporting plate in the circumferential direction, and after the sealing gasket is arranged in the annular supporting plate, the sealing gasket can be fixed through the air holes. The exhaust mechanism is used for injecting gas into the gas hole and exhausting the gas, the outer surface of the sealing gasket and the end face of the limiting groove can be cleaned, the attaching effect of the sealing gasket and the end face of the limiting groove is improved, and the sealing performance of the valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve structure, in particular to a high sealing valve structure, belongs to valve technical field. BACKGROUND

[0002] The prior art such as the utility model with the application number 202323524915.6 discloses a valve with high sealing, in order to solve the gap of the pipe fitting of valve body connecting port when being connected and fixed, there is certain dripping condition, and the connecting surface is relatively rough, the sealing surface finish is poor, it is not easy to better and pipe fitting are connected tightly, and the sealing performance is affected, the closed structure is arranged outside the connecting port, the first second limiting groove inside the closed structure can reach the better closed fitting effect of external connecting pipe, and the setting of smooth layer improves the finish of sealing surface, more convenient for external pipe fitting to be connected tightly, also effectively improve the sealing performance of pipe fitting.

[0003] Similar to the above application, there are still some deficiencies:

[0004] The cleaning condition of the valve and pipe connecting part is also the main reason for affecting the sealing performance of the valve, the above valve cannot ensure the cleaning of the sealing washer surface and the connecting port during the connection with the pipe, and the sealing performance of the valve during use is affected.

[0005] Therefore, a high sealing valve structure is designed to optimize the above problems. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a high sealing valve structure to solve the problems in the above background technology.

[0007] The purpose of the utility model can be achieved by adopting the following technical scheme:

[0008] A high sealing valve structure, including valve body and connecting port opened at both ends of valve body, the outer side of the end face of valve body and located in connecting port is provided with limiting groove, the inside of limiting groove is slidably provided with annular supporting plate, the outer side of annular supporting plate is in close contact with the inner side of limiting groove, the inner end face of limiting groove is provided with annular groove hiding the end of annular supporting plate, the end face of annular supporting plate and the inner end face of annular groove are evenly provided with first spring, the inner and outer sides of annular supporting plate are evenly provided with air hole along the circumference, the inside of annular supporting plate is provided with sealing washer, the outer side of valve body end face is provided with exhaust mechanism for sending air to the inside of air hole.

[0009] Preferably, one end of the air hole on the inner side of the annular supporting plate is trumpet-shaped.

[0010] Preferably, the sealing gasket is located on the outside of the front end of the annular supporting plate and is attached to the inside of the annular supporting plate, a protrusion is arranged on the outside of the tail end of the annular supporting plate, the thickness of the protrusion is the same as the thickness of the front end of the annular supporting plate, and the outer diameter of the outer end of the sealing gasket is the same as the inner diameter of the limiting groove.

[0011] Preferably, the exhaust mechanism comprises an annular air groove, a guide groove, an annular piston and a fixing ring, the annular air groove is arranged on the outside of the end face of the valve body, the guide groove is uniformly arranged between the annular air groove and the inside of the limiting groove, the end of the guide groove is aligned with the end of the air hole, the annular piston is slidably arranged in the annular air groove, the second spring is arranged between the annular piston and the inner end of the annular air groove, and the outer side of the annular piston is fixed with the fixing ring.

[0012] Preferably, the end of the fixing ring away from the annular piston is fixed with a sealing ring, and the width of the sealing ring is the same as the width of the fixing ring.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、the utility model discloses a limiting groove is set up on the outside of the connecting port, and the annular supporting plate is slidably arranged in the limiting groove, the sealing gasket can be limited by the annular supporting plate, in addition, the air hole is uniformly arranged on the annular supporting plate in the circumferential direction, after the sealing gasket is placed in the inside of the annular supporting plate, the exhaust mechanism is used to inject gas into the air hole and discharge, the outer surface of the sealing gasket and the end face of the limiting groove can be cleaned, the fitting effect of the sealing gasket and the end face of the limiting groove is improved, and the sealing performance of the valve is improved.

[0015] 2、the utility model discloses a valve body end face annular air groove, guide groove, annular piston, second spring, fixed ring exhaust mechanism that can be installed when aligning with the pipeline flange, automatically control annular piston moves towards the inside of annular air groove, extrude the gas in the inside of annular air groove and discharge from the air hole, and use more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the valve body end view of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is the annular supporting plate side view of the utility model;

[0019] Figure 4 It is the Figure 1 Enlarged view of A place in the utility model.

[0020] In the drawing: 1, valve body;2, connecting port;3, limiting groove;4, annular supporting plate;5, air hole;6, annular groove;7, first spring;

[0021] 8. Exhaust mechanism; 801. Annular air groove; 802. Guide groove; 803. Annular piston; 804. Second spring; 805. Fixed ring;

[0022] 9. Sealing washer. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application.

[0024] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0026] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0027] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the present application is used, or the orientation or position relationship commonly understood by those skilled in the art, such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0028] Embodiment 1

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment proposes a valve structure with high sealing performance, including a valve body 1 and connection ports 2 opened at both ends of the valve body 1. Limiting grooves 3 are opened on the end face of the valve body 1 and on the outer side of the connection ports 2. An annular support plate 4 is slidably disposed inside each limiting groove 3. The outer side of the annular support plate 4 is in contact with the inner side of the limiting groove 3. An annular groove 6 is opened on the inner end face of each limiting groove 3 to hide the end of the annular support plate 4. A first spring 7 is evenly disposed between the end face of the annular support plate 4 and the inner end face of the annular groove 6. Air holes 5 are evenly distributed circumferentially between the inner and outer sides of the annular support plate 4. A sealing gasket 9 is installed inside the annular support plate 4. An exhaust mechanism 8 for supplying air to the air holes 5 is provided on the outer side of the end face of the valve body 1.

[0030] When installing the valve and pipeline, the sealing gasket 9 is first inserted into the annular support plate 4. Due to the elastic force of the first spring 7, there is a certain gap between the sealing gasket 9 and the limiting groove 3 after installation, and the end part of the sealing gasket 9 protrudes outside the end face of the valve body 1. When docking with the flange on the pipeline, the exhaust mechanism 8 is used to supply air into the air hole 5. The gas enters from the outside of the air hole 5 and blows into the inside of the limiting groove 3. The airflow passes through the inner end face of the limiting groove 3 and blows over the end face of the sealing gasket 9, which can clean the inner end face of the sealing gasket 9 and the area where it is inconvenient to wipe manually at the contact point with the inside of the limiting groove 3, ensuring the sealing effect after installation. After cleaning, the sealing gasket 9 is completely squeezed into the inside of the limiting groove 3 by the pressure applied by the flange on the pipeline. The outer side of the sealing gasket 9 is tightly attached to the flange of the pipeline. At the same time, the first spring 7 will also push the sealing gasket 9 for a period of time to ensure the contact effect between the sealing gasket 9 and the flange on the pipeline.

[0031] Example 2

[0032] The solution in Example 1 will be further described below with reference to its specific working method.

[0033] like Figure 4 As shown, in a preferred embodiment, based on the above method, the air hole 5 is further shaped into a trumpet shape at one end inside the annular support plate 4. After the gas enters the interior of the limiting groove 3, it will spread outward, ensuring that the gas can adhere to the inner end face of the limiting groove 3 and flow through the inner end of the sealing gasket 9, thereby improving the cleaning effect.

[0034] like Figure 1As shown, in a preferred embodiment, based on the above method, the sealing gasket 9 is further provided with the outer side of the front end of the annular support plate 4 and the inner side of the annular support plate 4. The sealing gasket 9 is provided with a protrusion on the outer side of the rear end of the annular support plate 4, and the thickness of the protrusion is the same as the thickness of the front end of the annular support plate 4. The outer diameter of the outer end of the sealing gasket 9 is the same as the inner diameter of the limiting groove 3. After the valve body 1 is connected to the pipeline, the side of the sealing gasket 9 is tightly fitted with the limiting groove 3 and the inner side of the annular support plate 4, respectively.

[0035] like Figure 1 As shown, in a preferred embodiment, based on the above method, the exhaust mechanism 8 further includes an annular air groove 801, a guide groove 802, an annular piston 803, and a fixing ring 805. The annular air groove 801 is opened on the outer side of the end face of the valve body 1. The guide groove 802 is evenly opened between the annular air groove 801 and the inner side of the limiting groove 3. The end of the guide groove 802 is aligned with the end of the air hole 5. The annular piston 803 is slidably arranged inside the annular air groove 801. A second spring 804 is provided between the annular piston 803 and the inner end of the annular air groove 801. The fixing ring 805 is fixed on the outer side of the annular piston 803.

[0036] In the initial state, the inner end of the annular support plate 4 is located outside the annular groove 6, and the guide groove 802 is connected to the air hole 5. When the valve body 1 is connected to the pipeline, the fixing ring 805 protrudes from the end of the valve body 1 and first fits against the flange on the pipeline, and moves the annular piston 803 into the interior of the annular air groove 801, so that the gas inside the annular air groove 801 enters the interior of the air hole 5 through the guide groove 802. After cleaning is completed, the outer end face of the fixing ring 805 and the sealing gasket 9 are located on the same vertical plane. The flange on the pipeline continues to press against the end face of the valve body 1. At this time, the end of the annular support plate 4 enters the interior of the annular groove 6 until the inner end face of the sealing gasket 9 fits against the inner end face of the limiting groove 3.

[0037] like Figure 1 As shown, in a preferred embodiment, based on the above method, a sealing ring is further fixed at the end of the fixed ring 805 away from the annular piston 803, and the width of the sealing ring is the same as the width of the fixed ring 805. The use of the sealing ring can perform secondary sealing on the outer end face of the valve body 1.

[0038] Example 3

[0039] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0040] In the installation of the valve and the pipeline, the sealing washer 9 is inserted into the inside of the annular supporting plate 4, and due to the elastic force of the first spring 7, the sealing washer 9 has a certain spacing with the limiting groove 3 after the installation is completed, and the end part of the sealing washer 9 protrudes outside the end face of the valve body 1, at the same time, the guide groove 802 is communicated with the air hole 5, when the flange plate on the pipeline is butted, the fixed ring 805 protrudes from the end of the valve body 1, and will first be attached to the flange plate on the pipeline, and moves the annular piston 803 to the inside of the annular air groove 801, the gas in the inside of the annular air groove 801 enters the inside of the air hole 5 through the guide groove 802, the gas enters from the outside of the air hole 5 and blows to the inside of the limiting groove 3, the airflow passes through the end face in the limiting groove 3 and blows through the end face of the sealing washer 9, and can clean the area which is inconvenient to wipe manually between the end face of the sealing washer 9 and the inside of the limiting groove 3, after the cleaning is completed, at this time, the outer end face of the fixed ring 805 and the sealing washer 9 are located on the vertical plane, the flange on the pipeline continues to press the end face of the valve body 1, at this time, the end of the annular supporting plate 4 enters the inside of the annular groove 6, until the end face of the sealing washer 9 is attached to the end face of the limiting groove 3, the outer side of the sealing washer 9 is tightly attached to the flange plate of the pipeline, and at the same time, the first spring 7 also pushes the sealing washer 9, to ensure the attachment effect of the sealing washer 9 and the flange plate on the pipeline.

[0041] The above is only further embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. A valve structure with high sealing performance, comprising a valve body (1) and connecting ports (2) opened at both ends of the valve body (1), characterized in that: The end face of the valve body (1) is provided with a limiting groove (3) outside the connecting port (2), the limiting groove (3) is internally provided with an annular supporting plate (4), the outer side of the annular supporting plate (4) is in abutment with the inner side of the limiting groove (3), the inner end face of the limiting groove (3) is provided with an annular groove (6) hiding the end of the annular supporting plate (4), the end face of the annular supporting plate (4) and the inner end face of the annular groove (6) are uniformly provided with a first spring (7), the inner and outer sides of the annular supporting plate (4) are circumferentially provided with a gas hole (5), the inner part of the annular supporting plate (4) is provided with a sealing washer (9), and the outer side of the end face of the valve body (1) is provided with an exhaust mechanism (8) for supplying gas to the inner part of the gas hole (5).

2. The valve structure of claim 1, wherein: The end of the gas hole (5) on the inner side of the annular supporting plate (4) is trumpet-shaped.

3. The valve structure of claim 1, wherein: The outer side of the front end of the sealing washer (9) in the inner part of the annular supporting plate (4) is in abutment with the inner side of the annular supporting plate (4), the outer side of the tail end of the sealing washer (9) in the outer part of the annular supporting plate (4) is provided with a protrusion, the thickness of the protrusion is the same as the thickness of the front end of the annular supporting plate (4), and the outer diameter of the outer end of the sealing washer (9) is the same as the inner diameter of the limiting groove (3).

4. The valve structure of claim 1, wherein: The exhaust mechanism (8) comprises an annular gas groove (801), a guide groove (802), an annular piston (803) and a fixing ring (805), the annular gas groove (801) is provided on the outer side of the end face of the valve body (1), the annular gas groove (801) and the inner side of the limiting groove (3) are uniformly provided with the guide groove (802), the end of the guide groove (802) is aligned with the end of the gas hole (5), the inner part of the annular gas groove (801) is slidably provided with the annular piston (803), the annular piston (803) and the inner end part of the annular gas groove (801) are provided with a second spring (804), and the outer side of the annular piston (803) is fixedly provided with the fixing ring (805).

5. The valve structure of claim 4, wherein: The end of the fixing ring (805) away from the annular piston (803) is fixedly provided with a sealing ring, and the width of the sealing ring is the same as the width of the fixing ring (805).

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