Rotary valve

By designing an opening method in the rotary valve to first rotate the fixed sealing plate and then rotate the outer valve frame, and using the rear baffle and rear baffle to share the fluid impact force, the problems of valve leakage and difficulty in opening and closing under high-pressure and high-speed conditions are solved, and a more durable and convenient closing effect is achieved.

CN223375115UActive Publication Date: 2025-09-23JIANGSU XINHUOTEHE FAYE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422931092.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-09-23
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing rotary valves are prone to deformation and leakage due to frequent opening and closing under high pressure and high flow rate conditions, and are difficult to open and close.

Method used

A rotary valve structure was designed, which opens by first rotating the fixed sealing plate and then the outer valve frame. When closing, the inner rotating shaft and the outer rotating sleeve are rotated simultaneously. The rear baffle and rear baffle bar are used to share the impact force of high-pressure and high-speed fluid, increasing the number of stress points.

Benefits of technology

It improves the durability of the valve and the convenience of closing, reduces the risk of leakage, and reduces the impact of the impact of high-pressure and high-speed fluid on the valve.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223375115U_ABST
    Figure CN223375115U_ABST
Patent Text Reader

Abstract

The utility model discloses a rotary valve which comprises a valve body, a valve element assembly is arranged in the valve body, and the valve element assembly comprises an outer valve frame, an outer sealing groove, an outer sealing ring, a rear blocking strip, a front blocking strip, an inner sealing ring, an outer rotating sleeve, an outer rotating rod, a fixed sealing plate, a right sealing groove, an inner rotating shaft, an inner rotating rod, a rear blocking plate, an inner groove, a movable sealing plate, a left sealing groove, a rear blocking groove and a rotating ring. An outer sealing groove is formed in the outer circumferential face of the outer valve frame, and an outer sealing ring is connected into the outer sealing groove in a clamped mode. When the valve element is opened, the valve can be opened by rotating the fixed sealing plate firstly and then rotating the outer valve frame, and when the valve needs to be closed, the inner rotating shaft and the outer rotating sleeve can be rotated at the same time, so that the valve is completely closed under the action of the rear baffle and the rear barrier strip, more stress points exist in the closing process, closing is more convenient, and the service life of the valve is prolonged. And meanwhile, the rear baffle and the rear baffle strip can share the impact force of internal high-pressure and high-speed fluid, so that the valve is more durable.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a rotary valve. Background Art

[0002] Valves are a crucial component of fluid delivery systems, controlling the flow of media such as gas, liquid, and steam within pipelines. Their basic functions include opening and closing pipelines, regulating flow, controlling flow direction, stabilizing pressure, and preventing backflow. Valves are widely used in water treatment, petrochemicals, energy, construction, medical devices, and other fields.

[0003] In existing rotary valves, especially in high-pressure, high-flow-rate fluid delivery pipelines, frequent opening and closing of the valves often causes the valve core inside the valve to be impacted, which is prone to deformation and causes the valve to leak. In addition, high pressure and high flow rate also make the opening and closing of the valve very difficult. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary valve. When opening the valve core, the fixed sealing plate is rotated first, and then the outer valve frame is rotated to open the valve. When closing is required, the inner rotating shaft and the outer rotating sleeve can be rotated at the same time, so that the valve is completely closed under the action of the rear baffle and the rear baffle bar. During the closing process, there are more force points, and closing is more convenient. At the same time, the rear baffle and the rear baffle bar can share the impact force of the internal high-pressure and high-speed fluid, thereby making the valve more durable.

[0005] To achieve the above-mentioned purpose, a rotary valve is provided, comprising: a valve body, wherein a valve core assembly is arranged inside the valve body, and the valve core assembly comprises an outer valve frame, an outer sealing groove, an outer sealing ring, a rear baffle, a front baffle, an inner sealing ring, an outer rotating sleeve, an outer rotating rod, a fixed sealing plate, a right sealing groove, an inner rotating shaft, an inner rotating rod, a rear baffle, an inner groove, a dynamic sealing plate, a left sealing groove, a rear baffle groove and a rotating ring, an outer sealing groove is arranged on the outer circumferential surface of the outer valve frame, an outer sealing ring is clamped on the inside of the outer sealing groove, and the rear baffle, the front baffle and the inner sealing ring are fixedly connected to the inner circumferential surface of the outer valve frame, an outer rotating sleeve is fixedly connected to the circumferential surface of the outer valve frame, and an outer rotating sleeve is fixedly connected to the outer rotating rod, the number of the outer rotating rods is provided with two, and they are symmetrically distributed on the outer rotating rod, and the outer valve frame The left side of the fixed sealing plate is provided with a dynamic sealing plate, the dynamic sealing plate is semicircular, the circumferential surface of the dynamic sealing plate is provided with a left sealing groove, the right side wall of the dynamic sealing plate is fixedly connected to the inner rotating shaft, the circumferential surface of the inner rotating shaft is fixedly connected to the inner rotating shaft, the number of the inner rotating rods is provided with two, and they are symmetrically distributed on the inner rotating shaft, the rear side wall of the fixed sealing plate is fixedly connected to the rear baffle plate, the inner side of the fixed sealing plate is provided with an inner groove, the number of the inner grooves is provided with two, and they are symmetrically arranged up and down, a dynamic sealing plate is provided on the left side of the fixed sealing plate, the dynamic sealing plate is semicircular, the circumferential surface of the dynamic sealing plate is provided with a left sealing groove, the rear side wall of the dynamic sealing plate is provided with a rear baffle plate, and the right side wall of the dynamic sealing plate is fixedly connected to the inner rotating shaft, and the number of the rotating rings is provided with two, and they are symmetrically arranged up and down.

[0006] According to the rotary valve, the inner rotating shaft is located inside the rotating ring, the rotating ring is located inside the inner groove, and the rear baffle is located inside the rear baffle groove.

[0007] According to the rotary valve, the fixed sealing plate and the dynamic sealing plate are both located between the rear baffle and the front baffle, and the rear baffle and the front baffle are arranged opposite to each other on the left and right.

[0008] According to the rotary valve, the top of the inner rotating shaft is located inside the outer rotating sleeve, the bottom of the inner rotating shaft is rotatably connected to the outer valve frame, the top of the outer rotating sleeve passes through the valve body, and the outer rotating sleeve is rotatably connected to the valve body.

[0009] According to the rotary valve, the inner rotating rod is located below the outer rotating rod, and the inner rotating rod and the outer rotating rod are vertically distributed.

[0010] According to the rotary valve, a lower fastening ring is threadedly connected to the circumferential surface of the outer rotating sleeve, and the lower fastening ring is located below the outer rotating rod.

[0011] According to the rotary valve, an upper fastening ring is threadedly connected to the circumferential surface of the inner rotating shaft, and the upper fastening ring is located below the inner rotating rod and above the outer rotating sleeve.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the outer valve frame, outer sealing groove, outer sealing ring, rear baffle, front baffle, inner sealing ring, outer rotating sleeve, outer rotating rod, fixed sealing plate, right sealing groove, inner rotating shaft, inner rotating rod, rear baffle, inner groove, dynamic sealing plate, left sealing groove, rear baffle groove and swivel, when opening the valve core, first rotate the fixed sealing plate, and then rotate the outer valve frame to open the valve. When it needs to be closed, the inner rotating shaft and the outer rotating sleeve can be rotated at the same time, so that the valve is completely closed under the action of the rear baffle and the rear baffle. During the closing process, there are more force points, and closing is more convenient. At the same time, the rear baffle and the rear baffle can share the impact force of the internal high-pressure and high-speed fluid, thereby making the valve more durable.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of a rotary valve of the utility model;

[0016] Figure 2 This is a structural diagram of an outer valve frame of a rotary valve of the utility model;

[0017] Figure 3 This is an exploded rear view of the inner valve body of a rotary valve of the utility model;

[0018] Figure 4 This is an exploded front view of the inner valve body of a rotary valve of the utility model.

[0019] In the figure: 1. Valve body; 2. Valve core assembly; 201. Outer valve frame; 202. Outer sealing groove; 203. Outer sealing ring; 204. Rear baffle; 205. Front baffle; 206. Inner sealing ring; 207. Outer rotating sleeve; 208. Outer rotating rod; 209. Fixed sealing plate; 210. Right sealing groove; 211. Inner rotating shaft; 212. Inner rotating rod; 213. Rear baffle; 214. Inner groove; 215. Dynamic sealing plate; 216. Left sealing groove; 217. Rear baffle; 218. Swivel; 3. Lower fastening ring; 4. Upper fastening ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0021] See also Figures 1-4 The utility model provides a technical solution: a rotary valve, comprising: a valve body 1, a valve core assembly 2 is arranged inside the valve body 1, the valve core assembly 2 comprises an outer valve frame 201, an outer sealing groove 202, an outer sealing ring 203, a rear stop bar 204, a front stop bar 205, an inner sealing ring 206, an outer rotating sleeve 207, an outer rotating rod 208, a fixed sealing plate 209, a right sealing groove 210, an inner rotating shaft 211, an inner rotating rod 212, a rear stop plate 213, an inner groove 214, a dynamic sealing plate 215, a left sealing groove 216, a rear stop groove 217 and a rotating ring 218, and an outer circumferential surface of the outer valve frame 201 is provided with a An outer sealing groove 202 is provided, and an outer sealing ring 203 is clamped inside the outer sealing groove 202 to form a seal between the outer valve frame 201 and the valve body 1. The rear baffle 204, the front baffle 205 and the inner sealing ring 206 are fixedly connected to the inner circumferential surface of the outer valve frame 201. The inner sealing ring 206 forms a seal with the fixed sealing plate 209 and the dynamic sealing plate 215. The outer circumferential surface of the outer valve frame 201 is fixedly connected to an outer rotating sleeve 207. The circumferential surface of the outer rotating sleeve 207 is fixedly connected to an outer rotating rod 208. There are two outer rotating rods 208, and they are symmetrically distributed on the outer rotating rods 208.

[0022] The outer valve frame 201 is provided with a fixed sealing plate 209 inside. The fixed sealing plate 209 is semicircular. A right sealing groove 210 is provided on the circumferential surface of the fixed sealing plate 209. An inner rotating shaft 211 is fixedly connected to the left wall of the fixed sealing plate 209. An inner rotating rod 212 is fixedly connected to the circumferential surface of the inner rotating shaft 211. There are two inner rotating rods 212 and they are symmetrically distributed on the inner rotating shaft 211. A rear baffle 213 is fixedly connected to the rear side wall of the fixed sealing plate 209. 09 is provided with an inner groove 214 inside, and the number of inner grooves 214 is provided, and they are symmetrically arranged up and down. A dynamic sealing plate 215 is provided on the left side of the fixed sealing plate 209. The dynamic sealing plate 215 is semicircular, and a left sealing groove 216 is provided on the circumferential surface of the dynamic sealing plate 215. A rear blocking groove 217 is provided on the rear side wall of the dynamic sealing plate 215. A swivel 218 is fixedly connected to the right side wall of the dynamic sealing plate 215. The number of swivels 218 is provided, and they are symmetrically arranged up and down.

[0023] The inner rotating shaft 211 is located inside the rotating ring 218, and the rotating ring 218 is located inside the inner groove 214, so that the fixed sealing plate 209 and the dynamic sealing plate 215 can rotate, and the rear baffle 213 is located inside the rear baffle groove 217. The fixed sealing plate 209 and the dynamic sealing plate 215 are both located between the rear baffle 204 and the front baffle 205. The rear baffle 204 and the front baffle 205 are arranged opposite to each other on the left and right. The top of the inner rotating shaft 211 is located inside the outer rotating sleeve 207 and is dynamically sealed to each other. The bottom of the inner rotating shaft 211 is rotatably connected to the outer valve frame 201, the top of the outer rotating sleeve 207 passes through the valve body 1, and the outer rotating sleeve 207 is rotatably connected to the valve body 1. The inner rotating rod 212 is located below the outer rotating rod 208, and the inner rotating rod 212 and the outer rotating rod 208 are distributed vertically.

[0024] A lower fastening ring 3 is threadedly connected to the circumferential surface of the outer rotating sleeve 207, and the lower fastening ring 3 is located below the outer rotating rod 208. The lower fastening ring 3 is used to fix the outer rotating sleeve 207. An upper fastening ring 4 is threadedly connected to the circumferential surface of the inner rotating shaft 211, and the upper fastening ring 4 is located below the inner rotating rod 212 and above the outer rotating sleeve 207. The upper fastening ring 4 is used to fix the inner rotating shaft 211.

[0025] Working principle: When opening the valve core assembly 2, first rotate the fixed sealing plate 209 through the inner rotating rod 212 to make the valve half open, and then rotate the outer valve frame 201 through the outer rotating rod 208 to fully open the valve. When it needs to be closed, the inner rotating rod 212 and the outer rotating rod 208 can be rotated at the same time to make the rear baffle 213 fit into the rear baffle groove 217, and the fixed sealing plate 209 and the dynamic sealing plate 215 are limited between the front baffle 205 and the rear baffle 204, and the fixed sealing plate 209 and the dynamic sealing plate 215 are engaged with the inner sealing ring 206 to form a seal, and the valve is completely closed, and then the lower fastening ring 3 and the upper fastening ring 4 are locked, and the inner rotating shaft 211 and the outer rotating sleeve 207 are fixed.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A rotary valve comprising: The valve body (1) is characterized in that a valve core assembly (2) is provided inside the valve body (1), and the valve core assembly (2) includes an outer valve frame (201), an outer sealing groove (202), an outer sealing ring (203), a rear stop bar (204), a front stop bar (205), an inner sealing ring (206), an outer rotating sleeve (207), an outer rotating rod (208), a fixed sealing plate (209), a right sealing groove (210), an inner rotating shaft (211), an inner rotating rod (212), a rear stop plate (213), an inner groove (214), a dynamic sealing plate (215), a left sealing groove (216), a rear stop groove (217) and The outer circumference of the outer valve frame (201) is provided with an outer sealing groove (202), the inner portion of the outer sealing groove (202) is clamped with an outer sealing ring (203), the inner circumference of the outer valve frame (201) is fixedly connected with a rear stop bar (204), a front stop bar (205) and an inner sealing ring (206), the outer circumference of the outer valve frame (201) is fixedly connected with an outer rotating sleeve (207), the circumference of the outer rotating sleeve (207) is fixedly connected with an outer rotating rod (208), the number of the outer rotating rods (208) is provided with two, and they are symmetrically distributed on the outer circumference. On the rotating rod (208), a fixed sealing plate (209) is provided inside the outer valve frame (201), the fixed sealing plate (209) is semicircular, and a right sealing groove (210) is provided on the circumferential surface of the fixed sealing plate (209), an inner rotating shaft (211) is fixedly connected to the left wall of the fixed sealing plate (209), an inner rotating rod (212) is fixedly connected to the circumferential surface of the inner rotating shaft (211), the number of the inner rotating rods (212) is provided, and they are symmetrically distributed on the inner rotating shaft (211), and a rear baffle (213) is fixedly connected to the rear side wall of the fixed sealing plate (209). An inner groove (214) is provided inside the fixed sealing plate (209), and the number of the inner grooves (214) is two and they are symmetrically arranged in the upper and lower parts. A dynamic sealing plate (215) is provided on the left side of the fixed sealing plate (209), and the dynamic sealing plate (215) is semicircular. A left sealing groove (216) is provided on the circumferential surface of the dynamic sealing plate (215), and a rear stop groove (217) is provided on the rear side wall of the dynamic sealing plate (215). A rotating ring (218) is fixedly connected to the right side wall of the dynamic sealing plate (215), and the number of the rotating ring (218) is two and they are symmetrically arranged in the upper and lower parts.

2. A rotary valve according to claim 1, characterized in that: The inner rotating shaft (211) is located inside the rotating ring (218), the rotating ring (218) is located inside the inner groove (214), and the rear baffle (213) is located inside the rear baffle groove (217).

3. A rotary valve according to claim 1, characterized in that: The fixed sealing plate (209) and the dynamic sealing plate (215) are both located between the rear baffle (204) and the front baffle (205), and the rear baffle (204) and the front baffle (205) are arranged opposite to each other on the left and right.

4. A rotary valve according to claim 1, characterized in that: The top of the inner rotating shaft (211) is located inside the outer rotating sleeve (207), the bottom of the inner rotating shaft (211) is rotatably connected to the outer valve frame (201), the top of the outer rotating sleeve (207) passes through the valve body (1), and the outer rotating sleeve (207) is rotatably connected to the valve body (1).

5. A rotary valve according to claim 1, characterized in that: The inner rotating rod (212) is located below the outer rotating rod (208), and the inner rotating rod (212) and the outer rotating rod (208) are vertically distributed.

6. A rotary valve according to claim 1, characterized in that: A lower fastening ring (3) is threadedly connected to the circumferential surface of the outer rotating sleeve (207), and the lower fastening ring (3) is located below the outer rotating rod (208).

7. The rotary valve according to claim 1, characterized in that: An upper fastening ring (4) is threadedly connected to the circumferential surface of the inner rotating shaft (211), and the upper fastening ring (4) is located below the inner rotating rod (212) and above the outer rotating sleeve (207).