Plunger valve
By adopting an L-shaped ring plate end and a V-shaped sealing valve ring structure in the plunger valve, combined with the design of the inner tube and the protective tube, the problem of easy displacement of the sealing valve ring is solved, and higher sealing performance and stability are achieved.
Patent Information
- Application Number
- CN202422524588.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Traditional sealing valve rings are prone to displacement in plunger valves, affecting the sealing performance of the valve pipe and the external pipe connection.
The design employs an L-shaped ring plate end and a V-shaped sealing valve ring structure, combined with an inner insert and protective tube design, to ensure the stability and flatness of the sealing valve ring. The sealing valve ring is limited and guided by the docking assembly to prevent displacement of the sealing valve ring under pressure.
It improves the sealing performance between the valve pipe and the external pipe, reduces the possibility of uneven deformation of the sealing valve ring under pressure, and enhances the sealing effect.
Smart Images
Figure CN223549887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plunger valve technology, and in particular to a plunger valve. Background Technology
[0002] The main working principle of a plunger valve is to control the flow of the medium by the up and down movement of the plunger in the valve body. When the plunger moves downward, the bottom of the plunger will be tightly engaged with the valve seat, and the valve will be in the closed state. When the plunger moves upward, the bottom of the plunger will leave the valve seat, and the medium can flow smoothly.
[0003] When a plunger valve's valve tube is connected to an external pipeline, a sealing valve ring is placed between the valve tube and the external pipeline for sealing. However, traditional sealing valve rings have a circular ring design with flattened sealing valve rings on both sides. The sealing valve rings are installed via grooves. Because the sealing valve ring deforms during compression, and the valve tube lacks a restraining structure for the sealing valve ring, it is prone to displacement during assembly and disassembly, affecting the sealing performance between the valve tube and the external pipeline. Therefore, a plunger valve is needed to solve these problems. Utility Model Content
[0004] The purpose of this invention is to solve the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A plunger valve includes a plunger valve body with valve pipes symmetrically installed on its left and right sides. A docking assembly is provided on the outer side of each valve pipe. The docking assembly includes a left flange fixedly connected to the valve pipes. A pipe assembly is docked to the right side of the left flange, including a right flange. An external pipe is connected to the right side of the right flange. A groove is formed on the right side of the left flange, and a sealing valve ring is embedded within the groove. L-shaped annular plates are provided on both sides of the inner wall of the groove on the left flange. These L-shaped annular plates are embedded within the sealing valve ring through annular grooves. When the sealing valve ring is installed in the groove of the left flange, the L-shaped annular plates within the groove are embedded and engaged within the annular grooves on the side of the sealing valve ring, ensuring the stability of the sealing valve ring installation and effectively preventing displacement of the sealing valve ring under pressure.
[0007] Preferably, a threaded shaft is connected to the side of the left flange, and the threaded shaft passes through the inside of the right flange through a through hole. A screw cap is threaded onto the end of the threaded shaft, and a groove adapted to the screw cap is provided on the outside of the right flange to facilitate semi-concealed operation of the screw cap.
[0008] Preferably, an inner tube is connected to the right side of the left flange, and the inner tube is inserted inside the outer tube. The inner tube can be inserted into the outer tube to position the outer tube during installation, ensuring the ease of docking between the right flange and the left flange.
[0009] Preferably, a positioning ring is connected to the outside of the inner tube, and a sealing ring is fitted on the outside of the positioning ring. The outer side of the sealing ring abuts against the inner wall of the outer tube. The positioning ring has a T-shaped vertical cross-section and is fitted against the inner wall of the outer tube by the sealing ring to ensure the sealing of the connection between the inner tube and the outer tube.
[0010] Preferably, a protective tube is connected to the right side of the inner tube, and the outer side of the protective tube is close to the inner side of the outer tube. The inner side of the protective tube is inclined. The inclined surface of the protective tube can guide the flowing medium and reduce the impact force of the flowing medium on the sealing ring, thereby improving the sealing effect to a certain extent.
[0011] Preferably, the sealing valve ring is composed of two annular structures. The vertical cross-section of the right side of the sealing valve ring is designed with a V-shape. The V-shape design on the right side of the sealing valve ring facilitates the flatness of the right side of the sealing valve ring after compression when the right flange and the left flange apply pressure to the sealing valve ring, reducing the probability of uneven surface and gaps when the sealing valve ring is deformed under pressure.
[0012] This utility model has at least the following beneficial effects:
[0013] 1. By setting a sealing valve ring, the sealing performance of the left and right flanges is achieved. Compared with the traditional structure, this device has a groove on the side of the left flange, and L-shaped plate ends are opened on both sides of the inner wall of the groove. The sealing valve ring is embedded in the groove of the left flange, and the L-shaped plate ends are embedded in the groove on the outer side of the sealing valve ring, thereby limiting and fixing the sealing valve ring and preventing it from shifting under force when the left and right flanges are connected. At the same time, the right side of the sealing valve ring has a V-shaped cross-section, which helps the sealing valve ring to maintain the surface flatness when it is deformed under pressure, avoiding uneven deformation of the sealing valve ring under pressure, and further improving the sealing effect of the left and right flanges.
[0014] 2. By setting up a docking assembly, the outer pipe and the left flange are guided and docked. This device can achieve portable insertion between the outer pipe and the left flange through the inner insertion pipe and the protective pipe. When the right flange and the left flange are installed, the inner insertion pipe can be inserted into the outer pipe. A positioning ring is set on the outside of the inner insertion pipe, and a sealing ring sleeve is fitted on the outside of the positioning ring to abut against the inner wall of the outer pipe. At this time, the right side of the inner insertion pipe is connected to the protective pipe, so that the outside of the protective pipe fits against the inner wall of the outer pipe. The inner wall of the protective pipe is set at an inclination, which can guide the flowing medium, reduce the impact of the flowing medium on the sealing ring sleeve, and further improve the sealing performance between the left flange and the outer pipe. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the external structure of a plunger valve proposed in this utility model;
[0017] Figure 2 This is a three-dimensional disassembly diagram of the docking assembly and pipe assembly in a plunger valve proposed in this utility model;
[0018] Figure 3 This is a three-dimensional cross-sectional view of the docking assembly in a plunger valve proposed in this utility model;
[0019] Figure 4 This is a partial bottom view of the disassembly structure of the docking assembly in a plunger valve proposed in this utility model.
[0020] In the diagram: 1. Piston valve body; 2. Valve pipe; 3. Connecting assembly; 31. Left flange; 32. Inner tube; 33. Protective tube; 34. Sealing ring; 35. Positioning ring; 4. Pipe assembly; 41. Right flange; 42. Outer tube; 43. Threaded shaft; 44. Swivel cap; 5. Sealing valve ring. Detailed Implementation
[0021] 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.
[0022] Reference Figure 1-4 A plunger valve includes a plunger valve body 1, valve pipes 2 are symmetrically installed on the left and right sides of the plunger valve body 1, and a docking assembly 3 is provided on the outside of the valve pipes 2. The docking assembly 3 includes a left flange 31 that is connected and fixed to the valve pipes 2. A pipe assembly 4 is docked to the right side of the left flange 31. The pipe assembly 4 includes a right flange 41. An external pipe 42 is connected to the right side of the right flange 41. A groove is opened on the right side of the left flange 31, and a sealing valve ring 5 is embedded in the groove.
[0023] A threaded shaft 43 is connected to the side of the left flange 31. The threaded shaft 43 passes through the inside of the right flange 41 through a through hole, and a screw cap 44 is threaded at the end of the threaded shaft 43.
[0024] The left flange 31 has L-shaped ring plate ends on both sides of the groove inner wall, and the L-shaped ring plate ends are embedded in the inner side of the sealing valve ring 5 through the annular groove.
[0025] An inner tube 32 is connected to the right side of the left flange 31, and the inner tube 32 is inserted inside the outer tube 42.
[0026] The inner tube 32 is connected to a positioning ring 35 on the outside, and a sealing ring sleeve 34 is fitted on the outside of the positioning ring 35. The outer side of the sealing ring sleeve 34 abuts against the inner wall of the outer tube 42. The vertical cross section of the positioning ring 35 is designed with a T-shaped structure.
[0027] The inner tube 32 is connected to a protective tube 33 on the right side, and the outer side of the protective tube 33 is close to the inner side of the outer tube 42, while the inner side of the protective tube 33 is inclined.
[0028] The sealing valve ring 5 consists of two annular structures, and the right vertical cross section of the sealing valve ring 5 has a V-shaped structure design.
[0029] After the threaded shaft 43 passes through the right flange 41, the screw cap 44 is threaded and locked in place. A groove adapted to the screw cap 44 is opened on the outside of the right flange 41 to facilitate the semi-concealed operation of the screw cap 44. When the sealing valve ring 5 is installed in the groove of the left flange 31, the L-shaped ring plate end in the groove is embedded and locked in the annular groove on the side of the sealing valve ring 5 to ensure the stability of the sealing valve ring 5 installation and effectively prevent the sealing valve ring 5 from displacing under pressure. Grooves are opened on the inside of the right flange 41, which are adapted to the right side of the sealing valve ring 5 to facilitate the filling of the groove when the right side of the sealing valve ring 5 is under pressure.
[0030] When the right flange 41 is mated with the left flange 31, the inner tube 32 can be inserted into the outer tube 42, thereby positioning the installation of the outer tube 42 and ensuring the ease of mating between the right flange 41 and the left flange 31. After the inner tube 32 is inserted into the outer tube 42, the sealing ring sleeve 34 designed on the outside of the positioning ring 35 can make the sealing ring sleeve 34 abut against and fit against the inner wall of the outer tube 42, ensuring the sealing performance of the mating between the inner tube 32 and the outer tube 42. At the same time, the T-shaped structure of the positioning ring 35 can buckle the sealing ring sleeve 34, ensuring the stability of the installation of the sealing ring sleeve 34.
[0031] The design of the protective tube 33 on the right side of the inner tube 32 allows the protective tube 33 to be inserted into the outer tube 42 along with the inner tube 32. The inclined surface of the protective tube 33 can guide the flowing medium and reduce the impact force of the flowing medium on the sealing ring 34, thereby improving the sealing effect to a certain extent. The left side of the sealing valve ring 5 can cooperate with the L-shaped ring plate end of the left flange 31 to ensure the stability of the installation of the sealing valve ring 5. At the same time, the V-shaped design on the right side of the sealing valve ring 5 can facilitate the flatness of the right side of the sealing valve ring 5 after compression when the right flange 41 and the left flange 31 apply pressure to the sealing valve ring 5, reducing the probability of uneven surface and gaps when the sealing valve ring 5 is deformed under pressure.
[0032] Working principle: According to the appendix Figure 1With appendix Figure 2 As shown, during use, when the left flange 31 and the right flange 41 are connected, the sealing valve ring 5 is first embedded in the groove on the side of the left flange 31, so that the L-shaped clamping plate end in the groove is embedded and engaged in the outer ring groove of the sealing valve ring 5, thereby disassembling and assembling the sealing valve ring 5. During the installation of the right flange 41, the threaded shaft 43 can pass through the through hole of the right flange 41, and the screw cap 44 is threaded on the outside of the threaded shaft 43 for locking and fixing.
[0033] Secondly, according to the appendix Figure 3 With appendix Figure 4 As shown, after the right flange 41 and the left flange 31 are connected, the inner tube 32 can be inserted into the outer tube 42. At this time, the sealing ring 34 is fitted on the outside of the positioning ring 35. The sealing ring 34 moves along with the inner tube 32 during insertion, so that the sealing ring 34 abuts against the inner wall of the outer tube 42. At the same time, the protective tube 33 on the right side of the inner tube 32 is close to the inner side of the outer tube 42. The inclined surface of the inner wall of the protective tube 33 can guide the flowing medium, reduce the impact force on the sealing ring 34, and improve the sealing effect.
[0034] The above describes and illustrates the basic principles, main features, and other aspects of this utility model.
[0035] Advantages of this type. Those skilled in the art should understand that this utility model is not limited to the above embodiments.
[0036] Due to limitations, the above embodiments and descriptions are merely the principles of this utility model, and are not intended to be construed as follows:
[0037] Various changes and modifications may be made to this utility model without departing from its spirit and scope.
[0038] Improvements, these changes and modifications all fall within the scope of the claimed invention.
[0039] The scope of protection of the utility model claim is defined by the appended claims and their equivalents.
Claims
1. A plunger valve, comprising a plunger valve body (1), characterized in that, The plunger valve body (1) is symmetrically equipped with valve pipes (2) on the left and right sides, and a docking assembly (3) is provided on the outside of the valve pipe (2). The docking assembly (3) includes a left flange (31) that is connected and fixed to the valve pipe (2). A pipe assembly (4) is docked to the right side of the left flange (31). The pipe assembly (4) includes a right flange (41). An external pipe (42) is connected to the right side of the right flange (41). A groove is opened on the right side of the left flange (31), and a sealing valve ring (5) is embedded inside the groove. L-shaped ring plate ends are provided on both sides of the inner wall of the groove of the left flange (31), and the L-shaped ring plate ends are embedded inside the sealing valve ring (5) through an annular groove.
2. A plunger valve according to claim 1, characterized in that, The left flange (31) is connected to a threaded shaft (43) on its side. The threaded shaft (43) passes through the inside of the right flange (41) through a through hole. A screw cap (44) is threaded onto the end of the threaded shaft (43).
3. A plunger valve according to claim 1, characterized in that, The left flange (31) is connected to an inner tube (32) on the right side, and the inner tube (32) is inserted inside the outer tube (42).
4. A plunger valve according to claim 3, characterized in that, The inner tube (32) is connected to a positioning ring (35) on the outside, and a sealing ring sleeve (34) is fitted on the outside of the positioning ring (35). The outer side of the sealing ring sleeve (34) abuts against the inner wall of the outer tube (42). The vertical cross section of the positioning ring (35) is designed in a T-shape.
5. A plunger valve according to claim 4, characterized in that, The inner tube (32) is connected to a protective tube (33) on the right side, and the outer side of the protective tube (33) is close to the inner side of the outer tube (42), and the inner side of the protective tube (33) is inclined.
6. A plunger valve according to claim 1, characterized in that, The sealing valve ring (5) consists of two annular structures, and the right vertical cross section of the sealing valve ring (5) is designed with a V-shaped structure.