Throttle valve seat sealing groove structure

Abstract

The utility model discloses throttle valve seat sealing groove structure, including valve seat sealing ring, valve seat, outer slide sleeve subassembly, valve body and center tube, the valve seat is installed in the valve body, the center tube is installed in the valve seat center, valve seat sealing ring is installed between the center tube and valve seat, the outer slide sleeve subassembly is movably installed with the center tube above valve seat sealing ring. The utility model discloses new structure, processes two inverted tooths in valve seat sealing ring, and the inverted tooth hooks valve seat sealing ring, can realize that sealing ring is reliably fixed in valve seat groove, can avoid the occurrence of dangerous accident, the utility model discloses simple and reasonable in structure, and the installation is convenient to use, and the production cost is low, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to a throttle valve, specifically to a throttle valve seat sealing groove structure. Background Technology

[0002] External sliding sleeve throttle valves are a common type of valve for regulating flow. Due to their ease of adjustment, good sealing performance, and simple operation, they can quickly and effectively control fluid flow, meeting the flow control requirements under different working conditions. Therefore, external sliding sleeve throttle valves are widely used in various fields. However, in conventional structures, the valve seat sealing ring is directly placed in the valve seat sealing ring groove without any fixing measures, only an interference fit. In actual use, it has been found that when the valve is in the closed state and is opened, the sealing ring is sometimes pulled out of the valve seat sealing ring groove by the external sliding sleeve assembly, causing sealing failure and potentially dangerous accidents. Therefore, we propose a valve seat sealing groove structure for throttle valves. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a throttle valve seat sealing groove structure, which solves the problem that conventional throttle valve seat sealing rings are directly placed in the valve seat sealing ring groove without any fixing measures and only have an interference fit. However, in actual use, it is found that when the valve is in the closed state and is opened, the sealing ring is sometimes pulled out by the outer sliding sleeve assembly and detaches from the valve seat sealing ring groove, resulting in sealing failure and causing dangerous accidents.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a throttle valve seat sealing groove structure, including a valve seat sealing ring, a valve seat, an outer sliding sleeve assembly, a valve body and a central tube. The valve seat is installed in the valve body, and a central tube is installed in the center of the valve seat. A valve seat sealing ring is installed between the central tube and the valve seat, and an outer sliding sleeve assembly is movably installed above the valve seat sealing ring on the central tube.

[0005] Based on the above scheme, the valve seat and the valve body are in sliding fit.

[0006] Based on the above scheme, the outer sliding sleeve assembly slides in conjunction with the central tube.

[0007] Based on the above scheme, the valve seat sealing ring is integrally provided with reverse teeth, and the valve seat is provided with a reverse tooth groove that matches the valve seat sealing ring and its external reverse teeth.

[0008] Compared with the prior art, the advantages of this utility model are as follows: The valve seat sealing groove structure of the throttle valve adopts a new structure. Two reverse teeth are machined in the valve seat sealing ring. By hooking the valve seat sealing ring with the reverse teeth, the sealing ring can be reliably fixed in the valve seat groove, which can avoid the occurrence of dangerous accidents. The structure of this utility model is simple and reasonable, easy to install and use, low in manufacturing cost, and highly practical. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the throttle valve seat sealing groove structure of this utility model.

[0010] The numbers in the diagram are: 1-valve seat seal ring, 101-reverse tooth, 2-valve seat, 3-outer sliding sleeve assembly, 4-valve body, 5-center tube. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0012] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0013] Reference Figure 1 It can be seen that the throttle valve seat sealing groove structure includes a valve seat sealing ring 1, a valve seat 2, an outer sliding sleeve assembly 3, a valve body 4, and a central tube 5. The valve seat 2 is installed inside the valve body 4, and the central tube 5 is installed at the center of the valve seat 2. The valve seat sealing ring 1 is installed between the central tube 5 and the valve seat 2. The outer sliding sleeve assembly 3 is movably installed above the valve seat sealing ring 1 on the central tube 5.

[0014] The valve seat 2 and the valve body 4 are slidably fitted together, which facilitates the installation and disassembly of the valve seat 2; the outer sliding sleeve assembly 3 is slidably fitted with the central tube 5, which facilitates the sliding of the outer sliding sleeve assembly 3 on the central tube 5; the valve seat sealing ring 1 is integrally provided with a reverse tooth 101, and the valve seat 2 is provided with a reverse tooth groove that matches the valve seat sealing ring 1 and its external reverse tooth 101. The reverse tooth groove can easily lock the valve seat sealing ring 1.

[0015] The principle and advantages of this utility model: The valve seat sealing groove structure of the throttle valve has two reverse tooth grooves machined in the groove of the valve seat 2. The valve seat sealing ring 1 is pressed into the bottom of the groove of the valve seat 2 along the direction of the reverse teeth, so that the reverse teeth 101 are completely embedded in the reverse tooth groove to form an interference fit. When the valve is opened, the valve seat sealing ring 1 is firmly hooked by the reverse teeth 101, which effectively prevents the sealing surface of the outer sliding sleeve assembly 3 and the sealing surface of the valve seat from sticking together, and avoids the possibility of the valve seat sealing ring 1 being pulled out when the valve is opened. This utility model has a simple and reasonable structure, is easy to install and use, has low manufacturing cost, and is suitable for widespread use.

[0016] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A throttle valve seat sealing groove structure, comprising a valve seat sealing ring (1), a valve seat (2), an outer sliding sleeve assembly (3), a valve body (4), and a central tube (5), characterized in that: A valve seat (2) is installed inside the valve body (4). A central tube (5) is installed in the center of the valve seat (2). A valve seat sealing ring (1) is installed between the central tube (5) and the valve seat (2). An outer sliding sleeve assembly (3) is movably installed above the valve seat sealing ring (1) on the central tube (5).

2. The throttle valve seat sealing groove structure according to claim 1, characterized in that, The valve seat (2) and the valve body (4) are in sliding fit.

3. The throttle valve seat sealing groove structure according to claim 1, characterized in that, The outer sliding sleeve assembly (3) is in sliding engagement with the central tube (5).

4. The throttle valve seat sealing groove structure according to claim 1, characterized in that, The valve seat sealing ring (1) is integrally provided with a reverse tooth (101), and the valve seat (2) is provided with a reverse tooth groove that matches the valve seat sealing ring (1) and its external reverse tooth (101).

Images