One-way valve

Abstract

The utility model provides a one-way valve which comprises a limiting assembly, a first connecting assembly and a second connecting assembly. The valve port piece is in sealed connection with the inner wall of the mounting channel, and the valve port piece is provided with a valve port; the valve element is movably arranged in the mounting channel along the first axis and is in limiting fit with the limiting assembly, and the valve opening is opened or closed through movement of the valve element; the valve port piece and / or the valve element are / is an integrally-formed structural piece. The valve port piece and / or the valve element are / is of an integrally-formed structure, the number of components in the one-way valve is reduced, collision among the multiple components is avoided, and noise of the one-way valve is lowered. The structure of the one-way valve is simplified, matching among a plurality of components is avoided, and the installation difficulty of the valve port piece is reduced. And meanwhile, the valve port machining difficulty of the valve port piece is reduced, higher machining precision can be achieved, and the sealing effect between the valve port and the valve element is improved.

Description

Technical Field

[0001] The utility model relates to the field of semiconductor manufacturing, in particular to a one-way valve. Background Art

[0002] In recent years, as people's living standards have gradually improved, air conditioners have become a daily consumer product that has entered thousands of households. In air conditioners, the one-way valve is an important component. The one-way valve realizes the forward conduction and reverse cutoff of the internal refrigerant through the movement of its internal valve core.

[0003] The one-way valve will affect the cooling performance and noise of the air conditioner. The existing one-way valve has a complex structure, and the coordination between the components is prone to noise. In addition, the friction between the components is prone to produce particles, which affects the sealing effect of the one-way valve and further affects the cooling performance of the air conditioner. Utility Model Content

[0004] The utility model aims at at least solving the problem that the one-way valve in the prior art is prone to generate noise, and proposes a one-way valve.

[0005] In order to achieve the purpose of the utility model, a one-way valve is provided, comprising:

[0006] The valve body has a first axis, and the valve body has a mounting passage penetrating along the first axis direction;

[0007] A valve port member, sealedly connected to the inner wall of the installation channel, the valve port member having a valve port;

[0008] A valve core is movably arranged in the installation channel along the first axis and is limitedly matched with the valve body, and the valve core opens or closes the valve port by moving;

[0009] The valve port member and / or the valve core are integrally formed structural members.

[0010] In some embodiments, the valve body comprises:

[0011] A limiting sleeve having a first end and a second end in the direction of the first axis, the installation passage runs through the first end to the second end of the limiting sleeve, and the valve port member is located at the first end of the limiting sleeve;

[0012] The limiting portion is located in the installation channel and between the valve port member and the second end of the limiting sleeve, and the valve core is located between the limiting portion and the valve port member.

[0013] In some embodiments, the valve mouth piece is cylindrical, and the valve mouth piece includes a large diameter section and a small diameter section. The large diameter section is arranged near the first end of the limit sleeve, and the large diameter section has a first plug interface for installing a first pipeline. The valve mouth piece is located in the installation channel, and a first welding groove can be formed between the end face of the valve mouth piece, the inner wall of the installation channel and the first pipeline.

[0014] In some embodiments, the valve port member is annular, and the valve port member has a positioning structure arranged along the outer peripheral surface;

[0015] The limiting sleeve comprises a first connecting structure extending toward the first axis, and the first connecting structure cooperates with the positioning structure to fix the valve port member.

[0016] In some embodiments, the positioning structure is a positioning ring extending radially outward from the valve port member, and the first connecting structure abuts against an outer peripheral surface of the valve port member and the positioning ring.

[0017] In some embodiments, the positioning structure is a positioning groove extending along the circumference of the valve mouth member, and the first connecting structure abuts against an inner wall of the positioning groove.

[0018] In some embodiments, the first end of the limiting sleeve has a first plug interface for plugging and mating with the first pipeline.

[0019] In some embodiments, the limiting portion includes a limiting member, and the limiting member is fixedly connected to the limiting sleeve.

[0020] In some embodiments, the limiting portion includes a limiting structure, and the limiting sleeve contracts radially toward the first axis to form the limiting structure.

[0021] In some embodiments, the stopper is annular, the axis of the stopper is arranged along the first axis, and the stopper has a connecting groove arranged along the outer circumference;

[0022] The limiting sleeve has a second connection structure extending toward the first axis, and the connection structure cooperates with the connection groove to fix the limiting member.

[0023] In some embodiments, the limiting member is cylindrical, the axis of the limiting member is arranged along the first axis, the outer wall of the limiting member fits the side wall of the installation channel, and the limiting member is fixedly connected to the limiting sleeve.

[0024] In some embodiments, the limiting member has a second plug-in port penetrating along the first axis direction, the second plug-in port is used to install the second pipeline, and the inner wall of the limiting member has a limiting ring arranged away from the second end of the limiting sleeve, and the limiting ring is used to cooperate with the second pipeline in limiting position;

[0025] The limiting member is located in the installation channel, and a second welding groove can be formed between the end surface of the limiting member close to the second end of the limiting sleeve, the inner wall of the installation channel, and the second pipeline.

[0026] In some embodiments, the second end of the limiting sleeve has a second plug interface for plugging and mating with the second pipeline.

[0027] In some embodiments, the valve core includes a valve core body and a blocking portion, the valve core body is used to cooperate with the installation channel in a limiting manner, and the blocking portion is connected to the valve core body and is used to block the valve port.

[0028] In some embodiments, the valve core body is cylindrical and is arranged around the blocking portion. The valve core also includes a connecting ring located between the valve core body and the blocking portion, and the connecting ring has a flow hole passing through in a direction parallel to the first axis.

[0029] In some embodiments, the valve core body is cylindrical, the sealing portion is arranged at one end of the valve core body, and the valve core also includes a connecting ring located between the valve core body and the sealing portion, and the connecting ring has a flow hole passing through in a direction parallel to the first axis.

[0030] In some embodiments, the outer wall of the valve core body includes multiple side plates parallel to the first axis, and there is an abutment structure between two adjacent side plates. The abutment structure is used to fit the inner wall of the installation channel, and the side plate and the inner wall of the installation channel form a flushing channel between two adjacent abutment structures.

[0031] In some embodiments, the valve core has a plurality of side plates, all of which are connected end to end in a direction surrounding the first axis to form the valve core body, and the blocking portion is connected to one end of the valve core body;

[0032] The connecting position of two adjacent side plates forms an abutment structure, and the side plate and the inner wall of the installation channel form a flushing channel between the two adjacent abutment structures.

[0033] The utility model has the following beneficial effects:

[0034] The valve port and / or valve core adopts an integrated molding structure, which reduces the number of components in the one-way valve, avoids collision between multiple components, and reduces the noise of the one-way valve. The structure of the one-way valve is simplified, avoiding the coordination between multiple components and reducing the difficulty of installing the valve port. At the same time, the valve port processing difficulty of the valve port is reduced, and a higher processing accuracy can be achieved, thereby improving the sealing effect between the valve port and the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the one-way valve of the first embodiment of the utility model when it is opened;

[0036] Figure 2 This is a schematic diagram of the structure of the one-way valve of the first embodiment of the utility model when it is closed;

[0037] Figure 3 for Figure 1 Schematic diagram of the structure of the middle valve core;

[0038] Figure 4 This is a schematic diagram of the structure of a one-way valve according to Embodiment 2 of the present utility model;

[0039] Figure 5 for Figure 4 Schematic diagram of the structure on one side of the middle valve core;

[0040] Figure 6 for Figure 4 The structural diagram of the other side of the middle valve core;

[0041] Figure 7 This is a schematic diagram of the structure of a one-way valve according to Embodiment 3 of the present utility model;

[0042] Figure 8 for Figure 7 The front view of the middle valve core;

[0043] Fig. 9 for Figure 7 Schematic diagram of the structure of the middle valve core;

[0044] Fig.10 This is a schematic diagram of the structure of a one-way valve according to Embodiment 4 of the present utility model;

[0045] Fig.11 for Fig.10 The front view of the middle valve core;

[0046] Fig.12 for Fig.10 Schematic diagram of the structure of the middle valve core;

[0047] Fig.13 This is a schematic diagram of the structure of a one-way valve according to Embodiment 5 of the present utility model;

[0048] Fig.14 This is a schematic diagram of the structure of a one-way valve according to Embodiment 6 of the present utility model;

[0049] Fig.15 This is a schematic diagram of the structure of a one-way valve according to Embodiment 7 of the present utility model;

[0050] Fig.16 for Fig.15 A schematic diagram of the structure in which the middle valve port and the valve core are installed in the limit sleeve;

[0051] Fig.17 This is a schematic diagram of the structure of a one-way valve according to Embodiment 8 of the present utility model;

[0052] Fig.18 It is a schematic diagram of the structure of a tubular profile;

[0053] Fig.19 It is a schematic diagram of the structure of fixing the valve port member and the limit member with the tubular profile;

[0054] Fig. 20 This is a schematic diagram of the structure of a one-way valve according to Embodiment 9 of the present utility model;

[0055] Fig.21 for Fig. 20 Structural diagram of the middle valve core installed in the limit body;

[0056] Fig. 22 for Fig. 20 A schematic diagram of the structure of the middle limit body fixing the valve port member;

[0057] List of reference numerals:

[0058] 1. Valve port piece; 11. Valve port; 12. Large diameter section; 13. Small diameter section; 14. Positioning groove;

[0059] 15. Positioning ring; 2. Valve core; 21. Valve core body; 22. Sealing part; 23. Connecting ring;

[0060] 24. Flow hole; 25. Flushing channel; 211. Side plate; 212. Abutment structure; 3. Limit sleeve; 31. First connecting structure; 32. Second connecting structure; 33. Limit structure; 4. Limit member; 41. Connecting groove; 42. Limit ring; 5. First plug interface; 6. Second plug interface; 7. Tubular profile. DETAILED DESCRIPTION

[0061] In order to enable those skilled in the art to better understand the technical solution of the present invention, the one-way valve provided by the present invention is described in detail below in conjunction with the accompanying drawings.

[0062] The one-way valve provided in the present application includes a valve body, which has a first axis, and the valve body has an installation channel that penetrates along the first axis direction; a valve mouth piece 1, which is sealed and connected to the inner wall of the installation channel, and the valve mouth piece 1 has a valve port 11; a valve core 2, which is movably arranged in the installation channel along the first axis and cooperates with the valve body to limit the position, and the valve core 2 opens or closes the valve port 11 by moving; the valve mouth piece 1 and / or the valve core 2 are an integrally molded structural part.

[0063] The installation channel penetrates the valve body along the first axis direction, the valve port 1 is fixed in the installation channel, and the valve core 2 is movably arranged in the installation channel. The installation channel has an open valve position and a closed valve position, and the valve core 2 moves between the open valve position and the closed valve position. The valve port 1 may have a fluid channel penetrating along the first axis direction, and the valve port 11 is located at one end of the fluid channel close to the valve core 2. Figure 1 As shown, when in the valve opening position, the valve core 2 is away from the valve port 1 and is at a certain distance from the valve port 11 of the valve port 1. After passing through the fluid channel, the fluid can enter between the valve core 2 and the valve port 1, and continue to flow through the valve core 2 and through the installation channel. Figure 2 As shown, when in the valve closing position, the valve core 2 fits against the outer circumference of the valve port 11, and the valve core 2 blocks the valve port 11, so that the fluid cannot enter between the valve core 2 and the valve port member 1, thereby preventing the fluid from flowing. It can be understood that the valve body can limit the movement range of the valve core 2, and the valve body can cooperate with the valve port member 1 to limit the movement of the valve core 2 between the valve opening position and the valve closing position.

[0064] The valve member 1 and / or the valve core 2 are integrally formed structural parts, and the valve member 1 and the valve core 2 can be processed and formed by stamping, milling, etc. At least one of the valve member 1 and the valve core 2 can be installed as a whole in the installation channel of the valve body. The use of an integrally formed structural part for the valve member 1 and the valve core 2 can reduce the number of components and reduce the difficulty of installing the valve member 1 and the valve core 2. The valve core 2 needs to move in the installation channel, and the valve core 2 adopts an integrally formed structure, which can reduce the number of moving parts in the one-way valve, thereby avoiding collisions between multiple parts during movement, thereby avoiding the problem of increased noise and particles caused by collisions. In addition, the valve member 1 and / or the valve core 2 are integrally formed structural parts, so that the sealing position between the two can achieve a higher processing accuracy, thereby improving the sealing effect of the one-way valve.

[0065] In some embodiments, the valve body includes a limit sleeve 3 and a limit portion, the limit sleeve 3 has a first end and a second end in the direction of the first axis, the installation channel runs from the first end of the limit sleeve 3 to the second end, and the valve mouth member 1 is located at the first end of the limit sleeve 3; the limit portion is in the installation channel and is located between the valve mouth member 1 and the second end of the limit sleeve 3, and the valve core 2 is located between the limit portion and the valve mouth member 1.

[0066] like Figure 1 and Figure 2 As shown, the limiting sleeve 3 may be cylindrical, and the limiting portion may be arranged around the installation channel in the limiting sleeve 3. The limiting portion may be formed by the limiting sleeve 3 by stamping or the like, or may be a component installed inside the limiting sleeve 3.

[0067] The valve core 2 is located between the limiting part and the valve port member 1, and the limiting part and the valve port member 1 limit the valve core 2 from both ends of the installation channel. When the valve core 2 is fitted with the valve port member 1, the valve core 2 is in the valve closing position, and the valve core 2 blocks the valve port 11, so that the one-way valve is closed. When the valve core 2 is fitted with the limiting part, the valve core 2 is in the valve opening position, and the valve core 2 is away from the valve port 11, so that the one-way valve is opened, and the fluid can enter the installation channel from the valve port 11.

[0068] The valve core 2 moves along the installation channel between the valve port member 1 and the limiting portion. The installation channel plays a limiting role when the valve core 2 moves. The valve core 2 is limited by the limiting sleeve 3, the valve port member 1 and the limiting portion, which simplifies the structure of the one-way valve, reduces the number of parts that cooperate with each other, thereby reducing the difficulty of assembling the one-way valve, reducing the mutual collision between parts, and reducing the noise of the one-way valve.

[0069] In some embodiments, the valve core 2 includes a valve core body 21 and a blocking portion 22 . The valve core body 21 is used to cooperate with the installation channel in a limiting manner. The blocking portion 22 is connected to the valve core body 21 and is used to block the valve port 11 .

[0070] Optionally, the cross section of the valve core body 21 may be circular, polygonal or other shapes, the diameter of the installation channel in the middle of the limit sleeve 3 remains unchanged, and the valve core 2 may move in the installation channel in the middle of the limit sleeve 3. The diameter of the circumscribed circle of the valve core body 21 may be equal to the diameter of the installation channel in the middle of the limit sleeve 3, so that the limit sleeve 3 can limit the valve core 2 to always move along the direction of the first axis through the valve core body 21. The diameter of the blocking portion 22 may gradually decrease in the direction close to the valve port 1, and the cross section of the blocking portion 22 and the valve port 11 may both be circular. The minimum diameter of the blocking portion 22 is smaller than the diameter of the valve port 11, and the maximum diameter is larger than the diameter of the valve port 11, so that the blocking portion 22 can partially penetrate into the valve port 11 and fit with the outer peripheral surface of the valve port 11. The two sides of the blocking portion 22 are not connected. When the blocking portion 22 fits the valve port 11, the inside of the valve port 1 cannot be connected with other parts of the installation channel, thereby achieving the sealing of the valve port 11.

[0071] Optionally, the valve core 2 may be provided with a flow hole 24 around the blocking portion 22, and / or a flushing channel 25 may be formed between the valve core body 21 and the inner wall of the installation channel, and the flushing channel 25 also surrounds the outer periphery of the blocking portion 22, and the flushing channel 25 may allow fluid to flow through. When the valve core 2 is in the valve opening position, the fluid may pass through the corresponding flow hole 24 or flushing channel 25. Therefore, when the valve core 2 is in the valve closing position, the blocking portion 22 blocks the valve port 11, and the fluid cannot enter between the valve port member 1 and the valve core 2, and cannot pass through the flow hole 24 or flushing channel 25.

[0072] In such Figures 1 to 3In the first embodiment shown, the valve member 1 is cylindrical. The valve member 1 includes a large diameter section 12 and a small diameter section 13. The large diameter section 12 is arranged near the first end of the limit sleeve 3. The large diameter section 12 has a first plug-in port 5 for installing the first pipeline. The valve member 1 is located in the installation channel. A first welding groove is formed between the end face of the valve member 1, the inner wall of the installation channel and the first pipeline.

[0073] The large diameter section 12 and the small diameter section 13 of the valve mouth member 1 are coaxially arranged, and the valve port 11 is located at one end of the small diameter section 13 away from the large diameter section 12. The outer diameter of the large diameter section 12 of the valve mouth member 1 is equal to or slightly smaller than the inner diameter of the limiting sleeve 3, and the valve mouth member 1 is installed in the installation channel. The inner side of the large diameter section 12 forms a first plug-in interface 5, and the diameter of the first plug-in interface 5 can be equal to or slightly larger than the outer diameter of the first pipeline. The first pipeline is plugged into the first plug-in interface 5, and the small diameter section 13 can limit the first pipeline in the axial direction. The end of the first large diameter section 12 away from the valve port 11 has an end face, which is located in the installation channel and is at a first preset distance from the end face of the first end of the limiting sleeve 3. After the first pipeline is inserted into the first plug-in interface 5, a first welding groove can be formed between the end face of the valve mouth member 1, the inner wall of the installation channel and the first pipeline.

[0074] The limiting sleeve 3, the valve mouth part 1 and the first pipeline can be fixed by welding. The first welding groove can accommodate solder, and the limiting sleeve 3, the valve mouth part 1 and the first pipeline are fixed after the solder melts. The first welding groove can increase the capacity of the solder, thereby increasing the contact area between the solder and the limiting sleeve 3 and the first pipeline, and improving the firmness of the connection between the limiting sleeve 3, the valve mouth part 1 and the first pipeline. Of course, the limiting sleeve 3, the valve mouth part 1 and the first pipeline can also be connected by other methods, such as interference fit, bonding, etc., which are not limited here.

[0075] Optionally, in this embodiment, the valve port member 1 can be formed by stamping. Compared with cutting and other processing methods, stamping has higher processing efficiency and less material loss, which helps to improve corporate benefits.

[0076] Optional, such as Figure 1 and Figure 2 As shown, the limiting portion includes a limiting structure 33 , and the limiting sleeve 3 contracts radially toward the first axis to form the limiting structure 33 .

[0077] The limiting structure 33 can be formed by the limiting sleeve 3 through stamping. The position of the limiting sleeve 3 after stamping shrinks toward the first axis, and the inner diameter is reduced to form the limiting structure 33. The limiting structure 33 can be arranged around the installation channel, and the inner diameter of the limiting structure 33 is smaller than the diameter of the circumscribed circle of the valve core 2 body, so that the valve core 2 can be limited. During the assembly process, the valve core 2 can be first installed in the limiting sleeve 3, and then the limiting sleeve 3 can be processed to form the limiting structure 33. Of course, the limiting part can also be arranged in other ways, which are not limited here.

[0078] Optional, such as Figure 1 and Figure 2 As shown, the second end of the limiting sleeve 3 has a second plug-in port 6 for plugging and mating with the second pipeline.

[0079] The second end of the limiting sleeve 3 can be processed by stamping to form a second plug-in interface 6, and the second pipeline can be plugged into the second plug-in interface 6. Figure 1 and Figure 2 As shown, the inner diameter of the second plug-in portion can be equal to the outer diameter of the second pipeline, and the inner diameter of the limiting structure 33 can be smaller than the inner diameter of the second plug-in portion, so the limiting structure 33 can limit the second pipeline in the axial direction. Of course, the limiting sleeve 3 can also be provided with the second plug interface 6 in other ways, which are not limited here.

[0080] Optional, such as Figures 1 to 3 As shown, the valve core body 21 is cylindrical, the blocking portion 22 is arranged at one end of the valve core body 21, and the valve core 2 also includes a connecting ring 23 located between the valve core body 21 and the blocking portion 22, and the connecting ring 23 has a flow hole 24 that penetrates in a direction parallel to the first axis. The valve core body 21 is cylindrical, the blocking portion 22 is arranged at one end of the valve core body 21, and the valve core 2 also includes a connecting ring 23 located between the valve core body 21 and the blocking portion 22, and the connecting ring 23 has a flow hole 24 that penetrates in a direction parallel to the first axis.

[0081] like Figure 3 As shown, the inner ring of the connecting ring 23 is connected to the outer peripheral surface of the blocking portion, and the outer ring of the connecting ring 23 is connected to the inner peripheral surface of the valve core body 21. There are multiple flow holes 24, which are evenly distributed along the connecting ring 23. When the valve core 2 is away from the valve port 11, the fluid passes through the valve port 11 and enters between the valve core 2 and the valve port member 1, and then passes through the flow holes 24 and flows to the side of the valve core 2 away from the valve port member 1. The distribution of the flow holes 24 can be set as needed, not limited to Figure 3 The specific implementation shown.

[0082] Optionally, the valve core 2 can be made of metal, such as stainless steel, aluminum, etc. Metal materials are easy to process and have high strength and wear resistance. The valve core 2 can be processed into a cup-shaped hollow structure by stamping. The stamping process has high processing efficiency and low processing loss, which can improve the efficiency of the enterprise. In addition, the valve core 2 adopts a cup-shaped hollow structure to reduce its weight, make the valve core 2 move more sensitively, and reduce the risk of the valve core 2 getting stuck.

[0083] In such Figures 4 to 6 In the second embodiment shown, the structure of the valve port member 1 and the upper limit structure 33 of the limit sleeve 3 and the second plug port 6 are the same as those of the first embodiment, and the relevant description of the first embodiment may be referred to and will not be repeated here.

[0084] Optional, such as Figures 4 to 6 As shown, the valve core body 21 is cylindrical and is arranged around the blocking portion 22. The valve core 2 also includes a connecting ring 23 located between the valve core body 21 and the blocking portion 22. The connecting ring 23 has a flow hole 24 that penetrates along a direction parallel to the first axis.

[0085] The valve core body 21 is arranged around the blocking portion 22, and the inner diameter of the valve core body 21 can be larger than the outer diameter of the small diameter section 13 of the valve port member 1. When the blocking portion 22 blocks the valve port 11, the valve core body 21 can be sleeved on the outer periphery of the small diameter section 13. The length of the valve core body 21 on the first axis can be set as required, as long as the blocking portion 22 can effectively block the valve port 11 and the valve core body 21 can effectively play a guiding function.

[0086] The projections of the valve core body 21 and the blocking portion 22 on the first axis overlap, which can shorten the length of the valve core 2 in the direction of the first axis. Therefore, the distance between the valve port member 1 and the limiting structure 33 can be shortened accordingly, making the structure of the one-way valve more compact and the structure of the limiting sleeve 3 can also be shortened.

[0087] Optionally, in this embodiment, the valve core 2 can be formed by stamping. Of course, the user can also use other methods to process the valve core 2 as needed, which is not limited here.

[0088] Optionally, the inner ring of the connecting ring 23 is connected to the outer peripheral surface of the blocking portion, and the outer ring of the connecting ring 23 is connected to the inner peripheral surface of the valve core body 21. There are multiple flow holes 24, which are evenly distributed along the connecting ring 23. When the valve core 2 is away from the valve port 11, the fluid passes through the valve port 11 and enters between the valve core 2 and the valve port member 1, and then passes through the flow holes 24 and flows to the side of the valve core 2 away from the valve port member 1. The distribution of the flow holes 24 can be set as needed, not limited to Figure 6 The specific implementation shown.

[0089] In such Figures 7 to 9 In the third embodiment shown, the structures of the limiting sleeve 3 and the valve port member 1 are the same as those in the first embodiment, and the relevant description of the first embodiment may be referred to, and will not be repeated here.

[0090] Optionally, the outer wall of the valve core body 21 includes multiple side plates 211 parallel to the first axis, and an abutment structure 212 is provided between two adjacent side plates 211. The abutment structure 212 is used to fit the inner wall of the installation channel. The side plates 211 and the inner wall of the installation channel form a flushing channel 25 between two adjacent abutment structures 212.

[0091] like Figure 8 and Fig. 9As shown, the outer wall of the valve core body 21 has four side plates 211, and the side plates 211 are flat plates parallel to the first axis. The four side plates 211 are distributed in a rectangular shape around the blocking portion 22. There is an abutment structure 212 between two adjacent side plates 211, and the valve core body 21 has four abutment structures 212. The surface of the abutment structure 212 is an arc surface, which is adapted to the shape of the inner wall of the installation channel, so that the abutment structure 212 can fit the inner wall of the installation channel. Of course, the side plates 211 and the abutment structures 212 can also be used in other numbers, such as six, eight, etc., which are not limited here.

[0092] During the operation of the one-way valve, friction between the valve core 2 and the installation channel, the valve mouth 1, and the limit part may generate particles, which can easily cause wear of the valve core 2 and affect the service life of the one-way valve. In severe cases, the valve core 2 may even get stuck, causing the one-way valve to fail. There is a gap between the two adjacent abutment structures 212 between the side plate 211 and the inner wall of the installation channel, and the gap forms a flushing channel 25. When the valve core 2 is in the open valve position, the fluid can pass through the flushing channel 25, thereby flushing away the particles in the flushing channel 25, improving the cleanliness of the inside of the one-way valve, extending the service life of the one-way valve, and reducing the risk of one-way valve failure.

[0093] Optional, such as Figure 7 and Fig. 9 As shown, the blocking portion 22 is located at one end of the valve core body 21, and the valve core body 21 plays a guiding role. Of course, the valve core body 21 can also be arranged around the blocking portion 22, which is not limited here.

[0094] Optionally, a connecting ring 23 is provided between the valve core body 21 and the blocking portion 22, the inner ring of the connecting ring 23 is connected to the outer peripheral surface of the blocking portion, and the outer ring of the connecting ring 23 is connected to the inner peripheral surface of the valve core body 21. There are multiple flow holes 24, which are distributed along the connecting ring 23. Figure 8 In the specific embodiment shown, two flow holes 24 are distributed at both ends of each side plate 211. When the valve core 2 is away from the valve port 11, the fluid passes through the valve port 11 and enters between the valve core 2 and the valve port member 1, and then passes through the flow holes 24 and flows to the side of the valve core 2 away from the valve port member 1. The distribution of the flow holes 24 can be set as required, and is not limited to Figure 8 The specific implementation shown.

[0095] In such Figures 10 to 12 In the fourth embodiment shown, the structures of the limiting sleeve 3 and the valve port member 1 are the same as those in the first embodiment, and reference may be made to the relevant description of the first embodiment, which will not be repeated here.

[0096] In some embodiments, the valve core 2 has multiple side plates 211, all of the side plates 211 are connected end to end in the direction surrounding the first axis to form a valve core body 21, and the blocking portion 22 is connected to one end of the valve core body 21; the connecting position of two adjacent side plates 211 forms an abutment structure 212, and the side plate 211 and the inner wall of the installation channel form a flushing channel 25 between the two adjacent abutment structures 212.

[0097] like Fig.11 and Fig.12 As shown, the valve core body 21 is a cylindrical structure, and the blocking portion 22 is directly connected to the valve core body 21. Different from the third embodiment, there is no need to set a connecting ring 23 between the blocking portion 22 and the valve core body 21. The diameter of the circumscribed circle of the valve core body 21 is equal to the inner diameter of the installation channel in the middle of the limiting sleeve 3, so the abutment structure 212 of the valve core body 21 cooperates with the side wall of the installation channel to play a limiting role in the movement of the valve core body 21.

[0098] The side plate 211 and the side wall of the installation channel form a flushing channel 25 located between the two abutting structures 212. When the valve core 2 is away from the valve port 11, the fluid passes through the valve port 11 and enters between the valve core 2 and the valve port member 1, and then continues to flow through the flushing channel 25. When the fluid passes through the flushing channel 25, it can take away particles on the side wall of the installation channel, thereby improving the cleanliness of the inside of the one-way valve, extending the service life of the one-way valve, and reducing the risk of one-way valve failure. Of course, the valve core body 21 is not limited to Fig.12 The specific implementation shown.

[0099] In such Fig.13 In the fifth embodiment shown, the structure of the valve core 2 is the same as that of the first embodiment, and reference may be made to the relevant description of the first embodiment, which will not be repeated here.

[0100] like Fig.13 As shown, in this embodiment, the limiting member 4 is cylindrical, the axis of the limiting member 4 is arranged along the first axis, the outer wall of the limiting member 4 fits the side wall of the installation channel, and the limiting member 4 is fixedly connected to the limiting sleeve 3.

[0101] Optionally, the diameter of the limiting sleeve 3 may remain unchanged from the first end to the second end, so the tubular profile 7 may be directly used as the limiting sleeve 3 , thereby reducing the processing steps of the limiting sleeve 3 .

[0102] The outer diameter of the limiter 4 can be equal to the inner diameter of the limiter sleeve 3, and the outer diameter of the valve core 2 body of the valve core 2 is equal to the inner diameter of the limiter sleeve 3. The limiter 4 is arranged in the installation channel near the second end of the limiter sleeve 3, and the valve core 2 is installed between the limiter 4 and the valve port 1. Since the side wall of the limiter 4 has a certain thickness, the limiter 4 can limit the valve core 2, so that the valve core 2 moves between the limiter 4 and the valve port 1. When the valve core 2 is in the valve opening position, the fluid can flow out from the inside of the limiter 4.

[0103] Optionally, the limiting member 4 has a second plug port 6 extending along the first axis, the second plug port 6 is used to install a second pipeline, and the inner wall of the limiting member 4 has a limiting ring 42 arranged at the second end away from the limiting sleeve 3, the limiting ring 42 is used to cooperate with the second pipeline in limiting position.

[0104] The inner diameter of the second plug-in port 6 may be equal to the outer diameter of the second pipeline, and the second pipeline is plugged and matched with the second plug-in port 6. The limiting ring 42 can limit the second pipeline in the first axial direction. Fig.13 In the specific embodiment shown, the limiting ring 42 is located at one end of the limiting member 4 close to the valve core 2. Of course, the limiting member 4 can also use a limiting protrusion or other structure to limit the second pipeline, and the position of the limiting ring 42 or other limiting structures 33 can be set according to user needs and is not limited here.

[0105] The limiting member 4 is located in the installation channel, and a second welding groove can be formed between the end surface of the limiting member 4 close to the second end of the limiting sleeve 3, the inner wall of the installation channel and the second pipeline.

[0106] The end of the limiter 4 away from the valve core 2 has an end face, which is located in the installation channel and is at a second preset distance from the end face of the second end of the limiter sleeve 3. After the second pipeline is inserted into the second plug interface 6, a second welding groove can be formed between the end face of the limiter 4, the inner wall of the installation channel and the second pipeline. The limiter sleeve 3, the limiter 4 and the second pipeline are fixed by welding. The second welding groove can accommodate solder, and the limiter sleeve 3, the limiter 4 and the second pipeline are fixed after the solder melts. The first welding groove can increase the capacity of the solder, thereby increasing the contact area between the solder and the limiter sleeve 3 and the second pipeline, and improving the firmness of the connection between the limiter sleeve 3, the limiter 4 and the second pipeline. Of course, the limiter sleeve 3, the limiter 4 and the second pipeline can also be connected in other ways, such as interference fit or bonding, which is not limited here.

[0107] Optionally, the diameter of the valve port 11 of the valve port member 1 gradually increases in the direction close to the second end of the limiting sleeve 3. In this embodiment, the valve port 11 can increase the contact area with the blocking portion 22, thereby improving the sealing effect when the one-way valve is closed.

[0108] In such Fig.14 In the sixth embodiment shown, the structure of the limiter 4 and the structure of the valve core 2 are the same as those in the fifth embodiment, and reference may be made to the relevant description of the fifth embodiment, which will not be repeated here.

[0109] like Fig.14 As shown, in this embodiment, the valve mouth piece 1 is annular and has a positioning structure arranged along the outer circumferential surface; the limiting sleeve 3 has a first connecting structure 31 extending toward the first axis, and the first connecting structure 31 cooperates with the positioning structure to fix the valve mouth piece 1.

[0110] The first connection structure 31 extends toward the first axis and abuts against the positioning structure and the outer peripheral surface of the valve port member 1 to achieve fixation between the valve port member 1 and the limiting sleeve 3. The first connection structure 31 can be formed by stamping the limiting sleeve 3. Specifically, the position of the limiting sleeve 3 after stamping is contracted toward the first axis, the inner diameter is reduced, and the limiting sleeve abuts against the valve port member 1 to form the first connection structure 31.

[0111] Optionally, the positioning structure is a positioning ring 15 extending radially outward from the valve port member 1 , and the first connecting structure 31 abuts against the outer peripheral surface of the valve port member 1 and the positioning ring 15 .

[0112] like Fig.14 As shown, the positioning ring 15 is located in the middle of the valve mouth member 1 in the direction of the first axis, and the positioning ring 15 and the outer peripheral surface of the valve mouth member 1 near the first end of the limiting sleeve 3 form a positioning groove 14, and the first connecting structure 31 cooperates with the positioning groove 14 to fix the valve mouth member 1. When the valve core 2 is in the valve closing position, the valve core 2 and the valve mouth member 1 are against each other, and the force is directed toward the first end of the limiting sleeve 3. The first connecting structure 31 and the positioning ring 15 are against each other, and the force is directed toward the second end of the limiting sleeve 3. The two forces can balance each other. In addition, the positioning ring 15 and the first connecting structure 31 are sealed in the circumferential direction of the installation channel, which improves the sealing performance of the one-way valve. Of course, the positioning structure can also adopt other structures, such as positioning protrusions, etc., which are not limited here.

[0113] Optionally, the first end of the limiting sleeve 3 has a first plug interface 5 for plugging and mating with the first pipeline.

[0114] like Fig.14 As shown, the first end of the limiting sleeve 3 is provided with a first plug-in interface 5. The first end of the limiting sleeve 3 can be processed by stamping to form the first plug-in interface 5, and the first pipeline can be plugged and matched with the first plug-in interface 5. The inner diameter of the first plug-in portion can be equal to the outer diameter of the first pipeline, and the inner diameter of the valve port 1 can be smaller than the inner diameter of the first plug-in portion, so that the valve port 1 can limit the first pipeline in the axial direction. Of course, the limiting sleeve 3 can also be provided with the first plug-in interface 5 by other methods, which are not limited here.

[0115] In such Fig.15 and Fig.16 In the seventh embodiment shown, the structure of the valve port member 1 and the structure of the valve core 2 are the same as those of the sixth embodiment, and reference may be made to the relevant description of the sixth embodiment, which will not be repeated here.

[0116] like Fig.15 As shown, the first end and the second end of the limit sleeve 3 are respectively processed by stamping to form a first plug interface 5 and a second plug interface 6. The structure of the first plug interface 5 can refer to Example 6, and the structure of the second plug interface 6 can refer to Example 1, which will not be repeated here.

[0117] It should be noted that if Fig.16 As shown, during the assembly of the one-way valve, the valve port member 1 can be first installed in the limiting sleeve 3, and then the first connection structure 31 and the first plug interface 5 can be formed by stamping. Then, the valve core 2 is installed in the limiting sleeve 3, and then the second plug interface 6 is formed by stamping. Of course, the user can also select the processing process according to the needs, which is not limited here.

[0118] In such Figures 17 to 19 In the eighth embodiment shown, the structure of the valve core 2 is the same as that of the first embodiment, and reference may be made to the relevant description of the first embodiment, which will not be repeated here.

[0119] Optionally, the positioning structure is a positioning groove 14 extending along the circumference of the valve port member 1 , and the first connecting structure 31 abuts against an inner wall of the positioning groove 14 .

[0120] like Fig.17 As shown, the valve member 1 is annular, and the outer peripheral surface of the valve member 1 is provided with a positioning groove 14 extending along the circumference of the valve member 1. The valve member 1 is installed in the limiting sleeve 3, and the limiting sleeve 3 is formed by stamping to form a first connecting structure 31, and the first connecting structure 31 abuts against the inner wall of the positioning groove 14, so that the valve member 1 and the limiting sleeve 3 are fixedly connected.

[0121] Optionally, the limit member 4 is annular, the axis of the limit member 4 is arranged along the first axis, and the limit member 4 has a connecting groove 41 arranged along the outer peripheral surface; the limit sleeve 3 has a second connecting structure 32 extending toward the first axis, and the second connecting structure 32 cooperates with the connecting groove 41 to fix the limit member 4.

[0122] like Fig.17 As shown, the limiting member 4 is installed in the limiting sleeve 3 , and the limiting sleeve 3 is formed into a second connection structure 32 by stamping. The second connection structure 32 abuts against the inner wall of the connecting groove 41 , thereby fixing the valve port member 1 and the limiting sleeve 3 together.

[0123] In addition, a first plug interface 5 and a second plug interface 6 are respectively provided at both ends of the limiting sleeve 3. The structure of the first plug interface 5 can refer to the sixth embodiment, and the structure of the second plug interface 6 can refer to the first embodiment, which will not be described again.

[0124] It should be noted that if Fig.18 and 19 As shown, the stop sleeve 3 of the one-way valve is formed by stamping the tubular profile 7. During the assembly of the one-way valve, the valve port 1, the valve core 2 and the stop member 4 can be first installed in the tubular profile 7, and then the first connection structure 31 and the second connection structure are formed by stamping. Subsequently, the first plug interface 5 and the second plug interface 6 are formed by stamping. Of course, the user can also select the processing process according to the needs, which is not limited here.

[0125] In such Figure 20 to Figure 22In the ninth embodiment shown, the structure of the valve port member 1 is the same as that of the eighth embodiment, and the relevant description of the eighth embodiment may be referred to. The structure of the valve core 2 is the same as that of the first embodiment, and the relevant description of the first embodiment may be referred to, and will not be repeated here.

[0126] like Fig. 20 As shown, the first end and the second end of the limiting sleeve 3 are respectively processed by stamping to form a first plug interface 5 and a second plug interface 6, and the limiting sleeve 3 is also processed by stamping near the second end to form a limiting structure 33. The structure of the first plug interface 5 can refer to the sixth embodiment, and the structure of the limiting structure 33 and the second plug interface 6 can refer to the first embodiment, which will not be repeated here.

[0127] It should be noted that if Fig.21 and 22 As shown, the limiting sleeve 3 of the one-way valve is formed by stamping the tubular profile 7. During the assembly of the one-way valve, the valve core 2 can be first installed in the tubular profile 7, and then the limiting structure 33 and the second plug interface 6 can be formed by stamping. Then, the valve port member 1 is installed in the limiting sleeve 3, and then the first connection structure 31 is formed by stamping to fix the valve port member 1. Finally, the limiting sleeve 3 is formed by impact processing to form the first plug interface 5. Of course, the user can also select the processing process according to needs, which is not limited here.

[0128] In addition, it should be noted that the structure of the one-way valve to be protected by the present application is not limited to the above nine embodiments. Users can set the structure of the valve mouth member 1, the limiting sleeve 3, the valve core 2 and the limiting part as needed, which is not limited here.

[0129] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A one-way valve, characterized in that: include: The valve body has a first axis, and the valve body has a mounting passage penetrating along the first axis direction; A valve port member (1) is sealingly connected to the inner wall of the installation channel, and the valve port member (1) has a valve port (11); A valve core (2) is movably arranged in the installation channel along the first axis and is limitedly matched with the valve body, and the valve core (2) opens or closes the valve port (11) by moving; The valve port member (1) and / or the valve core (2) are integrally formed structural members.

2. The one-way valve according to claim 1, characterized in that: The valve body comprises: A limiting sleeve (3) having a first end and a second end in the direction of the first axis, the installation passage extending from the first end to the second end of the limiting sleeve (3), and the valve port member (1) being located at the first end of the limiting sleeve (3); The limiting portion is located in the installation channel and between the valve port member (1) and the second end of the limiting sleeve (3); the valve core (2) is located between the limiting portion and the valve port member (1).

3. The one-way valve according to claim 2, characterized in that: The valve mouth piece (1) is cylindrical and comprises a large diameter section (12) and a small diameter section (13). The large diameter section (12) is arranged close to the first end of the limiting sleeve (3). The large diameter section (12) has a first plug interface (5) for installing a first pipeline. The valve mouth piece (1) is located in the installation channel. A first welding groove can be formed between the end face of the valve mouth piece (1), the inner wall of the installation channel and the first pipeline.

4. The one-way valve according to claim 2, characterized in that: The valve port member (1) is annular and has a positioning structure arranged along the outer peripheral surface; The limiting sleeve (3) comprises a first connection structure (31) extending towards the first axis, and the first connection structure (31) cooperates with the positioning structure to fix the valve port member (1).

5. The one-way valve according to claim 4, characterized in that: The positioning structure is a positioning ring (15) extending radially outwardly of the valve port member (1), and the first connecting structure (31) abuts against the outer peripheral surface of the valve port member (1) and the positioning ring (15).

6. The one-way valve according to claim 4, characterized in that: The positioning structure is a positioning groove (14) extending along the circumference of the valve port member (1), and the first connecting structure (31) abuts against an inner wall of the positioning groove (14).

7. The one-way valve according to claim 4, characterized in that: The first end of the limiting sleeve (3) has a first plug interface (5) for plugging and matching with the first pipeline.

8. The one-way valve according to claim 2, characterized in that: The limiting portion comprises a limiting member (4), and the limiting member (4) is fixedly connected to the limiting sleeve (3).

9. The one-way valve according to claim 2, characterized in that: The limiting portion comprises a limiting structure (33), and the limiting sleeve (3) contracts radially toward the first axis to form the limiting structure (33).

10. The one-way valve according to claim 8, characterized in that: The limiting member (4) is annular, the axis of the limiting member (4) is arranged along the first axis, and the limiting member (4) has a connecting groove (41) arranged along the outer peripheral surface; The limiting sleeve (3) has a second connection structure (32) extending toward the first axis, and the connection structure cooperates with the connection groove (41) to fix the limiting member (4).

11. The one-way valve according to claim 8, characterized in that: The limiting member (4) is cylindrical, the axis of the limiting member (4) is arranged along the first axis, the outer wall of the limiting member (4) fits the side wall of the installation channel, and the limiting member (4) is fixedly connected to the limiting sleeve (3).

12. The one-way valve according to claim 11, characterized in that: The limiting member (4) has a second plug-in interface (6) penetrating along the first axial direction, the second plug-in interface (6) is used to install a second pipeline, and the inner wall of the limiting member (4) has a limiting ring (42) arranged at the second end away from the limiting sleeve (3), and the limiting ring (42) is used to cooperate with the second pipeline in limiting position; The limiting member (4) is located in the installation channel, and a second welding groove can be formed between the end surface of the limiting member (4) close to the second end of the limiting sleeve (3), the inner wall of the installation channel and the second pipeline.

13. The one-way valve according to claim 9 or 10, characterized in that: The second end of the limiting sleeve (3) has a second plug interface (6) for plugging and matching with a second pipeline.

14. The one-way valve according to claim 1, characterized in that: The valve core (2) comprises a valve core body (21) and a blocking portion (22), wherein the valve core body (21) is used to cooperate with the mounting channel in a limiting manner, and the blocking portion (22) is connected to the valve core body (21) and is used to block the valve port (11).

15. The one-way valve according to claim 14, characterized in that: The valve core body (21) is cylindrical and is arranged around the sealing portion (22). The valve core (2) also includes a connecting ring (23) located between the valve core body (21) and the sealing portion (22). The connecting ring (23) has a flow hole (24) penetrating along a direction parallel to the first axis.

16. The one-way valve according to claim 14, characterized in that: The valve core body (21) is cylindrical, the sealing portion (22) is arranged at one end of the valve core body (21), and the valve core (2) also includes a connecting ring (23) located between the valve core body (21) and the sealing portion (22), and the connecting ring (23) has a flow hole (24) penetrating in a direction parallel to the first axis.

17. The one-way valve according to claim 16, characterized in that: The outer wall of the valve core body (21) includes a plurality of side plates (211) parallel to the first axis, and an abutment structure (212) is provided between two adjacent side plates (211). The abutment structure (212) is used to fit the inner wall of the installation channel, and the side plates (211) and the inner wall of the installation channel form a flushing channel (25) between two adjacent abutment structures (212).

18. The one-way valve according to claim 14, characterized in that: The valve core (2) has a plurality of side plates (211), all of the side plates (211) are connected end to end in a direction surrounding the first axis to form the valve core body (21), and the blocking portion (22) is connected to one end of the valve core body (21); The connecting position of two adjacent side plates (211) forms an abutment structure (212), and the side plate (211) and the inner wall of the installation channel form a flushing channel (25) between the two adjacent abutment structures (212).

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