Clamping sleeve type one-way valve sealing structure
By designing the ferrule-type check valve seal structure, the spring is replaced, the leakage problem caused by spring attenuation is solved, and the sealing and resource utilization are improved.
Patent Information
- Application Number
- CN202422622974.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The springs of existing compressor check valves have elastically attenuated during long-term use, resulting in the valve port being unable to close closely, leakage occurs, and inability to replace, resulting in waste of resources.
A ferrule type check valve sealing structure is designed, including a valve body, a ferrule type joint, a fixing cylinder, a sealing chamber, a sealing column and a spring. The spring can be replaced by bolted sealing ring and a tightening mechanism to ensure the sealing effect.
When the spring is elastically attenuated, the spring can be replaced directly to reduce resource waste, improve sealing and prevent liquid from flowing back.
Smart Images
Figure CN223306365U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of one-way valves, and in particular relates to a sleeve-type one-way valve sealing structure. Background Art
[0002] The compressor check valve is a device that prevents gas backflow. Its function is to prevent the gas from flowing back from the exhaust pipe to the intake pipe when the compressor is stopped, causing adverse effects when the compressor is started. In addition, it can also control the direction of gas flow to ensure the normal flow of gas inside the system.
[0003] The existing compressor one-way valve mainly adopts a spring structure during use. When the compressor starts, the spring of the compressor one-way valve is compressed, the valve opens, and gas enters the compressor from the intake pipe. When the compressor stops running, the spring of the valve contracts and closes the valve to prevent gas from flowing back to the intake pipe from the exhaust pipe, thereby ensuring the normal flow of gas in the system. However, the elasticity of the spring will decay during long-term use, resulting in the valve port being unable to close tightly, causing leakage. The spring of the existing one-way valve cannot be replaced during use, and the entire one-way valve will be directly replaced, resulting in a waste of resources and inconvenience for people to use. Utility Model Content
[0004] The purpose of the present invention is to provide a sleeve-type one-way valve sealing structure with a simple structure and reasonable design in order to solve the above problems.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] A ferrule-type one-way valve sealing structure includes a valve body and ferrule-type joints installed on both sides of the valve body, a fixed cylinder is installed on the top of the valve body, a sealing cavity extending to the inside of the valve body is opened at the top of the valve body and located in the fixed cylinder, a spherical cavity is opened at the bottom of the sealing cavity, a sealing column is sleeved inside the sealing cavity, a sealing plate is slidably connected to the inside of the fixed cylinder, a sealing cylinder is installed on the top of the fixed cylinder through a fixing mechanism, a moving rod is installed on the top of the sealing plate, a spring is sleeved on the outside of the moving rod, and a tightening mechanism for tightening the spring is installed inside the sealing cylinder.
[0007] As a further optimization scheme of the present invention, a first flow cavity is opened on one side of the valve body to connect one of the ferrule-type joints with the bottom of the spherical cavity, and a second flow cavity is opened on the other side of the valve body to connect the other ferrule-type joint with one side of the sealing cavity.
[0008] As a further optimization solution of the present invention, the fixing mechanism includes a first sealing ring installed outside the fixing cylinder, and a second sealing ring installed outside the sealing cylinder. The first sealing ring and the second sealing ring are in contact with each other and fixed by multiple bolts.
[0009] As a further optimization scheme of the present invention, the tightening mechanism includes a pressure plate installed inside the sealing cylinder, and a limiting ring installed inside the fixed cylinder and used in conjunction with the pressure plate. A movable hole for use with a movable rod is opened at the center of the pressure plate, and the two ends of the spring are respectively in contact with the top of the sealing plate and the bottom of the pressure plate.
[0010] As a further optimization solution of the present invention, a sealing cylinder protrudes from the bottom of the pressing plate, and a sealing layer is provided on the outside of the pressing plate.
[0011] As a further optimization solution of the present invention, a steel ball is provided inside the spherical cavity, and the steel ball is located below the sealing column and is used to seal the port of the first flow cavity.
[0012] The beneficial effect of the utility model is that when the elasticity of the spring decays during use, the spring can be directly replaced with a new one without replacing the entire one-way valve, thereby reducing waste of resources and making it more convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a first cross-sectional structural diagram of the present invention;
[0015] Figure 3 This is a second cross-sectional structural diagram of the present invention;
[0016] Figure 4 This is a third cross-sectional structural diagram of the present utility model;
[0017] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.
[0018] In the figure: 1. Valve body; 2. Compression fitting; 3. Fixed cylinder; 4. Sealing chamber; 5. Spherical chamber; 6. Sealing column; 7. Sealing plate; 8. Sealing cylinder; 9. Moving rod; 10. Spring; 11. First circulation chamber; 12. First sealing ring; 13. Second sealing ring; 14. Pressure plate; 15. Limiting ring; 16. Moving hole; 17. Steel ball; 18. Second circulation chamber. DETAILED DESCRIPTION
[0019] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.
[0020] like Figure 1-Figure 5 As shown, a ferrule-type one-way valve sealing structure includes a valve body 1 and ferrule-type joints 2 installed on both sides of the valve body 1. A first flow cavity 11 is opened on one side of the valve body 1 to connect one of the ferrule-type joints 2 with the bottom of the spherical cavity 5. A second flow cavity 18 is opened on the other side of the valve body 1 to connect the other ferrule-type joint 2 with one side of the sealing cavity 4. A fixed cylinder 3 is installed on the top of the valve body 1. A sealing cavity 4 extending to the interior of the valve body 1 is opened on the top of the valve body 1 and located in the fixed cylinder 3. A spherical cavity 5 is opened at the bottom of the sealing cavity 4. 5 is provided with a steel ball 17, which is located below the sealing column 6 and is used to seal the port of the first circulation chamber 11. The interior of the sealing chamber 4 is sleeved with a sealing column 6, and the interior of the fixed cylinder 3 is slidably connected to the sealing plate 7. The top of the fixed cylinder 3 is provided with a sealing cylinder 8 through a fixing mechanism. When the liquid stops circulating, the steel ball 17 will fall to the port of the first circulation chamber 11 under the action of gravity, thereby sealing it to prevent the backflow of the liquid. At the same time, under the action of the spring 10, the sealing column 6 will seal one end of the second circulation chamber 18, which can achieve a double sealing effect. The fixing mechanism includes a first sealing ring 12 installed on the outside of the fixed cylinder 3 and a second sealing ring 13 installed on the outside of the sealing cylinder 8. The first sealing ring 12 and the second sealing ring 13 are fitted with each other and fixed by multiple bolts. A moving rod 9 is installed on the top of the sealing plate 7. The outer sleeve of the moving rod 9 is provided with a spring 10. A tightening mechanism for tightening the spring 10 is installed inside the sealing cylinder 8. The tightening mechanism includes a pressure plate 14 installed inside the sealing cylinder 8, and a pressure plate 14 installed inside the fixed cylinder 3 and in contact with the pressure plate 1 4, a limiting ring 15 for use with the mounting cylinder 3 is provided at the center of the pressure plate 14, a moving hole 16 for use with the moving rod 9 is opened, the two ends of the spring 10 are respectively in contact with the top of the sealing plate 17 and the bottom of the pressure plate 14, the bottom of the pressure plate 14 protrudes from the sealing cylinder 8, and a sealing layer is provided on the outside of the pressure plate 14. A space for use with the pressure plate 14 is formed between the limiting ring 15 and the top of the mounting cylinder 3. When the pressure plate 14 and the limiting ring 15 are in contact with each other, the sealing layer can improve the sealing performance between the first sealing ring 12 and the second sealing ring 13.
[0021] It should be noted that, in the sleeve-type one-way valve sealing structure, when in use, the liquid enters the spherical cavity 5 through the first circulation cavity 11, and the steel ball 17 is pushed upward under the action of the liquid pressure, thereby opening the port of the first circulation cavity 11. At this time, the liquid enters the sealing cavity 4, and the sealing column 6 is pushed upward under the action of the liquid pressure. At this time, the sealing plate 7 moves inside the mounting cylinder 3, thereby compressing the spring 10. At this time, the spring 10 will undergo elastic deformation. When the sealing column 6 moves to the upper side of the second circulation cavity 18, the liquid will be discharged through the second circulation cavity 18. When the spring 10 needs to be replaced, it can be replaced. Multiple bolts can be removed from the first sealing ring 12 and the second sealing ring 13. At this time, the sealing cylinder 8 can be directly removed from the top of the mounting cylinder 3. After removing the sealing cylinder 8, the spring 10 sleeved on the outside of the moving rod 9 can be directly removed, and then the new spring 10 can be sleeved on the outside of the moving rod 9, and then the sealing cylinder 8 can be re-installed on the top of the mounting cylinder 3. When the sealing cylinder 8 is installed on the top of the mounting cylinder 3, the pressure plate 14 will be sleeved on the outside of the moving rod 9, and the moving rod 9 will be located in the moving hole 16. Under the action of the pressure plate 14, the spring 10 will be pressed tightly between the pressure plate 14 and the sealing plate 7, so that the spring 10 can be replaced.
[0022] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.
Claims
1. A ferrule-type one-way valve sealing structure, comprising a valve body (1), and ferrule-type joints (2) mounted on both sides of the valve body (1), characterized in that: A fixed cylinder (3) is installed on the top of the valve body (1), a sealing cavity (4) extending to the interior of the valve body (1) is opened at the top of the valve body (1) and located inside the fixed cylinder (3), a spherical cavity (5) is opened at the bottom of the sealing cavity (4), a sealing column (6) is sleeved inside the sealing cavity (4), a sealing plate (7) is slidably connected to the interior of the fixed cylinder (3), a sealing cylinder (8) is installed on the top of the fixed cylinder (3) through a fixing mechanism, a moving rod (9) is installed on the top of the sealing plate (7), a spring (10) is sleeved on the outside of the moving rod (9), and a tightening mechanism for tightening the spring (10) is installed inside the sealing cylinder (8).
2. A sleeve-type one-way valve sealing structure according to claim 1, characterized in that: A first flow cavity (11) is provided on one side of the valve body (1) for connecting one of the ferrule-type joints (2) with the bottom of the spherical cavity (5), and a second flow cavity (18) is provided on the other side of the valve body (1) for connecting the other ferrule-type joint (2) with one side of the sealing cavity (4).
3. The sleeve-type one-way valve sealing structure according to claim 1, characterized in that: The fixing mechanism comprises a first sealing ring (12) mounted on the outside of the fixing cylinder (3), and a second sealing ring (13) mounted on the outside of the sealing cylinder (8), wherein the first sealing ring (12) and the second sealing ring (13) are attached to each other and fixed by a plurality of bolts.
4. The sleeve-type one-way valve sealing structure according to claim 1, characterized in that: The tightening mechanism comprises a pressure plate (14) installed inside the sealing cylinder (8), and a limiting ring (15) installed inside the fixed cylinder (3) and used in conjunction with the pressure plate (14). A moving hole (16) for use in conjunction with the moving rod (9) is provided at the center of the pressure plate (14). The two ends of the spring (10) are respectively in contact with the top of the sealing plate (7) and the bottom of the pressure plate (14).
5. The sleeve-type one-way valve sealing structure according to claim 4, characterized in that: A sealing cylinder (8) protrudes from the bottom of the pressing plate (14), and a sealing layer is provided on the outside of the pressing plate (14).
6. The sleeve-type one-way valve sealing structure according to claim 1, characterized in that: A steel ball (17) is provided inside the spherical cavity (5); the steel ball (17) is located below the sealing column (6) and is used to seal the port of the first flow cavity (11).