One-way valve with piston type noise reduction structure
By adopting a piston-type structure in the check valve and using the combination of the T-shaped fixed block and the conical piston block, the noise problem of traditional check valves is solved, precise control of liquid flow and noise reduction are achieved, and system efficiency is improved.
Patent Information
- Application Number
- CN202421472630.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-26
AI Technical Summary
Traditional check valves have complex structures and many parts, which lead to noise when liquids flow, affecting the use needs of specific personnel.
A check valve with a piston-type noise reduction structure is designed, and a hollow sleeve fixing block with a T-shaped structure and a conical piston block are used to close the flow through holes through the moving opening of the piston block, achieving precise control of liquid and noise reduction.
It effectively reduces the noise during liquid flow, improves the opening and closing accuracy of the valve port, and enhances the efficiency of the system.
Smart Images
Figure CN222633906U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of one-way valves and relates to a one-way valve with a piston-type noise reduction structure. Background Art
[0002] A one-way valve is a valve used to prevent the reverse flow of fluid. It has two forms: straight-through and right-angle. Straight-through one-way valves are usually connected to the pipeline by threads, while right-angle one-way valves have multiple installation methods such as threaded connection, plate connection and flange connection. In addition, there are hydraulically controlled one-way valves, also known as locking valves or pressure-maintaining valves, which can not only prevent the reverse flow of oil, but also open by controlling oil pressure when needed, so that the oil flow can flow in both directions. For example, the one-way valve of air conditioning is an important component, which is mainly used to control the flow direction of refrigerant and system pressure. It is usually used in conjunction with an electromagnetic four-way reversing valve to change the flow direction of refrigerant and ensure the normal operation of the air conditioning system. The one-way valve is also called a check valve. Its main function is to prevent the refrigerant gas or liquid from flowing back in the pipeline, thereby avoiding possible system failures and reduced efficiency. However, the traditional one-way valve has a more complex structure and usually has more parts. Therefore, when the liquid flows, a certain liquid impact sound will be generated, which will further generate noise, which is not conducive to the daily use needs of some specific personnel. Utility Model Content
[0003] The utility model aims to solve the above problems and provides a one-way valve with a piston-type noise reduction structure.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A one-way valve with a piston-type noise reduction structure comprises a main body, a flow cavity is opened inside the main body, auxiliary connecting pipes are arranged at both ends of the main body, auxiliary capillaries are connected between the auxiliary connecting pipes, a first main connecting pipe and a second main connecting pipe are connected below the auxiliary connecting pipe and at both ends of the main body respectively, an annular groove is opened on the outer wall of the main body, wherein the annular groove is an open semicircular groove structure and protrudes on the inner wall of the main body to form an annular block, a valve core assembly is placed inside the annular block, and the valve core assembly is placed inside the main body.
[0006] In the above-mentioned one-way valve with a piston-type noise reduction structure, the valve core assembly consists of a fixed block and a piston block, wherein the fixed block is a hollow sleeve with a T-shaped structure, and an annular groove is provided on the outer wall of the fixed block.
[0007] In the above-mentioned one-way valve with a piston-type noise reduction structure, both sides of the inner wall of the annular groove are arranged as right-angle structures, and the annular groove is embedded in the annular clamping block.
[0008] In the above-mentioned one-way valve with a piston-type noise reduction structure, a first flow chamber is through-opened at one end inside the fixed block, a movable chamber is through-connected at the other side of the first flow chamber, and the other end of the movable chamber is through-connected to the fixed block.
[0009] In the above-mentioned one-way valve with a piston-type noise reduction structure, two flow holes are provided on the outer wall of the fixed block and corresponding to the positions of the active cavity, and the flow holes are connected to the inside of the active cavity in a through-type manner.
[0010] In the above-mentioned one-way valve with a piston-type noise reduction structure, the piston block is a conical solid block, wherein the outer wall of the piston block is fitted and connected to the inner wall of the active chamber in a sliding connection.
[0011] In the above-mentioned one-way valve with piston-type noise reduction structure, the distance between the flow hole and the inner wall of the active chamber is greater than the length of the piston block, and the inner wall diameter of the active chamber is greater than the inner wall diameter of the first flow chamber.
[0012] In the above-mentioned one-way valve with a piston-type noise reduction structure, the inner wall diameters of the No. 1 main connecting pipe and the auxiliary connecting pipe remain consistent, and the No. 1 main connecting pipe, the No. 2 main connecting pipe and the auxiliary connecting pipe are installed in an 8-shaped structure.
[0013] In the above-mentioned one-way valve with a piston-type noise reduction structure, the No. 1 main connecting pipe, the No. 2 main connecting pipe and the auxiliary connecting pipe are all connected in a through-type manner inside the flow cavity.
[0014] In the above-mentioned one-way valve with a piston-type noise reduction structure, the inner wall diameter of the second main connecting pipe is larger than the inner wall diameter of the first main connecting pipe.
[0015] Compared with the existing technology, the advantages of the utility model are:
[0016] The utility model is provided with a main body with a hollow tube structure, and a No. 1 main connecting pipe, a No. 2 main connecting pipe and two auxiliary connecting pipes are respectively connected at both ends of the main body, which is convenient for the transmission and connection of the refrigerant. At the same time, an annular clamping block is arranged on the inner wall of the main body, and a fixed block is embedded between the inner walls of the annular clamping block, wherein open cavities are arranged at both ends of the fixed block, and a piston block with a conical structure is slidably placed inside the fixed block, and the outer wall of the piston block is fitted and connected to the inner wall of the fixed block, so that not only the internal flow hole of the fixed block can be opened and closed by the movement of the piston block, but also the structure is simpler, which can further reduce the noise generated when the refrigerant liquid flows, and the piston block can accurately control the opening and closing of the valve port, thereby improving the efficiency of the system.
[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a sectional view of the internal structure of the utility model as a whole.
[0019] Figure 2 It is a front view of the utility model.
[0020] Figure 3 It is a schematic diagram of the installation of the auxiliary capillary of the utility model.
[0021] Figure 4 It is a side sectional view of the valve core assembly of the utility model.
[0022] Figure 5 It is a top view of the piston block of the utility model.
[0023] Figure 6 It is a left side view of the main body of the utility model.
[0024] Figure 7 It is a right side view of the main body of the utility model.
[0025] In the figure: 1, main body; 2, flow cavity; 3, auxiliary connecting pipe; 31, auxiliary capillary; 4, No. 1 main connecting pipe; 5, No. 2 main connecting pipe; 6, annular groove; 61, annular clamping block; 7, valve core assembly; 71, fixed block; 701, first flow cavity; 702, movable cavity; 72, piston block; 73, annular clamping groove; 74, flow hole. DETAILED DESCRIPTION
[0026] The utility model is further described below in conjunction with the accompanying drawings.
[0027] like Figure 1-7As shown, a one-way valve with a piston-type noise reduction structure includes a main body 1, a flow cavity 2 is opened inside the main body 1, auxiliary connecting pipes 3 are arranged at both ends of the main body 1, and auxiliary capillaries 31 are connected between the auxiliary connecting pipes 3, and a first main connecting pipe 4 and a second main connecting pipe 5 are respectively connected below the auxiliary connecting pipe 3 and at both ends of the main body 1, an annular groove 6 is opened on the outer wall of the main body 1, wherein the annular groove 6 is an open semicircular groove structure, and protrudes on the inner wall of the main body 1 to form an annular block 61, a valve core assembly 7 is placed inside the annular block 61, and the valve core assembly 7 is placed inside the main body 1.
[0028] In this embodiment, an integrated flow cavity 2 is opened inside the main body 1 to facilitate the flow of liquid, and auxiliary connecting pipes 3 are fixedly installed at both ends of the main body 1 and are through-connected inside the flow cavity 2. At the same time, an auxiliary capillary 31 is fixedly installed on the auxiliary connecting pipe 3, so that the liquid can be refluxed. A first main connecting pipe 4 and a second main connecting pipe 5 are fixedly connected to the two ends of the main body 1 directly below the auxiliary connecting pipe 3, so that the output pipe and the input pipe can be transmitted and connected. At the same time, a valve core assembly 7 is fixedly placed inside the main body 1, so that the flow speed and amount of the liquid can be automatically adjusted and used, which is more accurate and efficient.
[0029] Combination Figure 1 , Figure 2 As shown, the valve core assembly 7 is composed of a fixed block 71 and a piston block 72 , wherein the fixed block 71 is a hollow sleeve of a T-shaped structure, and an annular groove 73 is provided on the outer wall of the fixed block 71 .
[0030] In this embodiment, the fixing block 71 is configured as a hollow sleeve structure to facilitate normal flow of liquid. Meanwhile, an annular groove 73 is provided on the outer wall of the fixing block 71 so that the fixing block 71 can be limited and fixed.
[0031] Combination Figure 1 , Figure 4 As shown, both sides of the inner wall of the annular groove 73 are set to a right-angle structure, and the annular groove 73 is embedded in the annular block 61.
[0032] In this embodiment, by setting the inner wall of the annular groove 73 to a right-angle structure, the annular groove 73 can be prevented from falling off the annular clamping block 61, thereby further maintaining the connection stability.
[0033] Combination Figure 1 , Figure 4As shown, a first flow chamber 701 is provided at one end of the fixed block 71 , a movable chamber 702 is connected to the other side of the first flow chamber 701 , and the other end of the movable chamber 702 is connected to the fixed block 71 .
[0034] In this embodiment, the first flow cavity 701 is opened inside the fixed block 71 , and the movable cavity 702 is connected to the other side of the first flow cavity 701 , so that the internal penetration of the fixed block 71 can be achieved.
[0035] Combination Figure 1 , Figure 4 As shown, two flow holes 74 are provided on the outer wall of the fixing block 71 and corresponding to the position of the active cavity 702 , and the flow holes 74 are connected to the inside of the active cavity 702 in a through-type manner.
[0036] In this embodiment, two flow holes 74 are opened on the outer wall of the fixed block 71 and corresponding to the positions of the active cavity 702, and the flow holes 74 are connected to the inside of the active cavity 702 in a through-type manner, so that the flow holes 74 can be connected to the inside of the active cavity 702.
[0037] Combination Figure 4 , Figure 5 As shown, the piston block 72 is a conical solid block, wherein the outer wall of the piston block 72 is closely connected to the inner wall of the movable cavity 702 and is slidably connected.
[0038] In this embodiment, by fitting the outer wall of the piston block 72 to the inner wall of the active cavity 702 and performing a sliding connection, the piston block 72 can be easily moved left and right inside the active cavity 702, and the convection hole 74 can further realize the function of opening and closing.
[0039] Combination Figure 4 As shown, the distance between the flow hole 74 and the inner wall of the active chamber 702 is greater than the length of the piston block 72 , and the inner wall diameter of the active chamber 702 is greater than the inner wall diameter of the first flow chamber 701 .
[0040] In this embodiment, the distance between the flow hole 74 and the inner wall of the active chamber 702 is greater than the length of the piston block 72, and the inner wall diameter of the active chamber 702 is greater than the inner wall diameter of the first flow chamber 701, so that the first flow chamber 701 can be further closed by using the top end of the piston block 72.
[0041] Combination Figure 6 , Figure 7 As shown, the inner wall diameters of the No. 1 main connecting pipe 4 and the auxiliary connecting pipe 3 are consistent, and the No. 1 main connecting pipe 4, the No. 2 main connecting pipe 5 and the auxiliary connecting pipe 3 are installed in an 8-shaped structure.
[0042] In this embodiment, by keeping the inner wall diameters of the No. 1 main connecting pipe 4 and the auxiliary connecting pipe 3 consistent, and arranging and installing the No. 1 main connecting pipe 4, the No. 2 main connecting pipe 5 and the auxiliary connecting pipe 3 in an 8-shaped structure, it is convenient to connect and transmit the transmission pipeline normally, and the installation is more convenient and fixed.
[0043] Combination Figure 1 , Figure 2 As shown, the No. 1 main connecting pipe 4 , the No. 2 main connecting pipe 5 and the auxiliary connecting pipe 3 are all connected in a through-type manner inside the flow cavity 2 .
[0044] In this embodiment, the No. 1 main connecting pipe 4, the No. 2 main connecting pipe 5 and the auxiliary connecting pipe 3 are all connected in a through-connection manner inside the flow cavity 2, which facilitates efficient flow and transmission speed of the liquid.
[0045] Combination Figure 2 , Figure 6 and Figure 7 As shown, the inner wall diameter of the No. 2 main connecting pipe 5 is greater than the inner wall diameter of the No. 1 main connecting pipe 4 .
[0046] In this embodiment, by making the inner wall diameter of the No. 2 main connecting pipe 5 larger than the inner wall diameter of the No. 1 main connecting pipe 4, it is not only convenient to connect the No. 2 main connecting pipe 5 to the liquid equipment, but also can better ensure the transmission quality.
[0047] The working principle of the utility model is:
[0048] When the utility model is in use, an auxiliary capillary 31 is fixedly connected between the secondary connecting pipes 3, and the No. 1 main connecting pipe 4 and the No. 2 main connecting pipe 5 are respectively fixedly connected to the liquid transmission equipment. When the air-conditioning equipment starts to work, the refrigerant liquid enters the interior of the flow cavity 2. At the same time, when the liquid flows from the high-pressure area to the low-pressure area, the piston block 72 is pushed by the liquid to move inside the active cavity 702, so that the flow hole 74 opens to allow the liquid to pass through; when the liquid stops flowing or flows from the low-pressure area to the high-pressure area, the piston block 72 returns to its original position under the push of the liquid, closes the valve port, and prevents the liquid from flowing in the opposite direction. In this way, even when the fluid flow stops, the one-way valve will not generate backflow. At the same time, due to the presence of the piston block 72, the noise generated during the fluid flow can be effectively reduced. Further, the piston block 72 can accurately control the opening and closing of the valve port, thereby improving the efficiency of the system.
[0049] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.
[0050] Although this article uses more terms such as 1, main body; 2, flow cavity; 3, auxiliary connecting pipe; 31, auxiliary capillary; 4, No. 1 main connecting pipe; 5, No. 2 main connecting pipe; 6, annular groove; 61, annular clamping block; 7, valve core assembly; 71, fixed block; 701, first flow cavity; 702, movable cavity; 72, piston block; 73, annular clamping groove; 74, flow hole, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.
Claims
1. A one-way valve with a piston-type noise reduction structure, comprising a main body (1), characterized in that: A flow cavity (2) is provided inside the main body (1), and auxiliary connecting pipes (3) are provided at both ends of the main body (1). An auxiliary capillary (31) is connected through the auxiliary connecting pipe (3). A first main connecting pipe (4) and a second main connecting pipe (5) are connected below the auxiliary connecting pipe (3) and at both ends of the main body (1), respectively. An annular groove (6) is provided on the outer wall of the main body (1), wherein the annular groove (6) is an open semicircular groove structure and protrudes from the inner wall of the main body (1) to form an annular clamping block (61), and a valve core assembly (7) is placed inside the annular clamping block (61), and the valve core assembly (7) is placed inside the main body (1).
2. The one-way valve with a piston-type noise reduction structure according to claim 1, characterized in that: The valve core assembly (7) is composed of a fixed block (71) and a piston block (72), wherein the fixed block (71) is a hollow sleeve with a T-shaped structure, and an annular groove (73) is provided on the outer wall of the fixed block (71).
3. The one-way valve with a piston-type noise reduction structure according to claim 2, characterized in that: Both sides of the inner wall of the annular clamping groove (73) are arranged as right-angle structures, and the annular clamping groove (73) is embedded and connected to the annular clamping block (61).
4. The one-way valve with a piston-type noise reduction structure according to claim 3, characterized in that: A first flow chamber (701) is provided at one end of the fixed block (71), a movable chamber (702) is connected to the other side of the first flow chamber (701), and the other end of the movable chamber (702) is connected to the fixed block (71).
5. The one-way valve with a piston-type noise reduction structure according to claim 4, characterized in that: Two circulation holes (74) are provided on the outer wall of the fixed block (71) and at positions corresponding to the active cavity (702). The circulation holes (74) are connected to the inside of the active cavity (702) in a through-type manner.
6. The one-way valve with piston-type noise reduction structure according to claim 5, characterized in that: The piston block (72) is a conical solid block, wherein the outer wall of the piston block (72) is fitted and connected to the inner wall of the movable chamber (702) in a sliding manner.
7. The one-way valve with a piston-type noise reduction structure according to claim 6, characterized in that: The distance between the circulation hole (74) and the inner wall of the active chamber (702) is greater than the length of the piston block (72), and the inner wall diameter of the active chamber (702) is greater than the inner wall diameter of the first flow chamber (701).
8. The one-way valve with a piston-type noise reduction structure according to claim 7, characterized in that: The inner wall diameters of the No. 1 main connecting pipe (4) and the auxiliary connecting pipe (3) are consistent, and the No. 1 main connecting pipe (4), the No. 2 main connecting pipe (5) and the auxiliary connecting pipe (3) are arranged and installed in an 8-shaped structure.
9. The one-way valve with a piston-type noise reduction structure according to claim 8, characterized in that: The No. 1 main connecting pipe (4), the No. 2 main connecting pipe (5) and the auxiliary connecting pipe (3) are all connected in a through-type manner inside the flow cavity (2).
10. The one-way valve with a piston-type noise reduction structure according to claim 9, characterized in that: The inner wall diameter of the No. 2 main connecting pipe (5) is greater than the inner wall diameter of the No. 1 main connecting pipe (4).