Valve element assembly, one-way valve and air conditioner

Abstract

The utility model provides a valve element assembly, a one-way valve and an air conditioner, and the valve element assembly comprises a valve port piece and a valve element, the limiting sleeve is connected with the valve port piece, and a limiting channel is formed in the limiting sleeve; the valve element is movably arranged in the limiting channel, a plurality of abutting structures distributed at intervals are arranged between the outer wall of the valve element and the inner wall of the limiting channel, and the outer wall of the valve element and the inner wall of the limiting channel form a flushing channel between every two adjacent abutting structures. According to the valve element assembly, due to the fact that the flushing channel is formed between the outer wall of the valve element and the inner wall of the limiting channel, refrigerants can flow through the flushing channel while pushing the valve element to move, and in the process of flowing through the flushing channel, the flowing refrigerants can take away impurity particles attached to the inner wall of the limiting channel and the outer wall of the valve element; therefore, the inner wall of the limiting channel and the outer wall of the valve element are flushed, and the risk that the valve element is stuck is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to a valve core component, a one-way valve and an air conditioner. 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] However, when in use, there will inevitably be some foreign particles in the air conditioner pipeline, and these foreign particles will flow in the pipeline with the refrigerant. In some cases, these foreign particles will enter between the valve core and the limit sleeve, affecting the sliding of the valve core. In extreme cases, there is even a risk of causing the valve core to get stuck, resulting in failure of the one-way valve. Utility Model Content

[0004] The utility model aims to at least solve the problem in the prior art that foreign particles in the air-conditioning pipeline will enter between the valve core and the limit sleeve along with the flow of refrigerant, affecting the sliding of the valve core. In extreme cases, there is a risk of the valve core being stuck and the one-way valve failing. A valve core assembly, a one-way valve and an air conditioner are proposed.

[0005] In order to achieve the purpose of the utility model, a valve core assembly is provided, including: a valve mouth member, having a valve mouth, and the valve mouth has a first axis; a limit sleeve, connected to the valve mouth member, a limit channel penetrating along the first axis direction is arranged inside the limit sleeve, the valve mouth is communicated with the limit channel, and a flow hole communicated with the limit channel is arranged on the outer wall of the limit sleeve; a valve core is movably arranged in the limit channel along the first axis direction, in the direction perpendicular to the first axis, the valve core and the limit sleeve are limitedly matched, and the valve core opens or closes the valve mouth by moving; in the direction around the first axis, a plurality of spaced abutment structures are provided between the outer wall of the valve core and the inner wall of the limit channel, and a flushing channel is formed between the outer wall of the valve core and the inner wall of the limit channel between two adjacent abutment structures.

[0006] Optionally, the limit sleeve includes: a limit sleeve body, having a first end and a second end in the direction of the first axis, the first end of the limit sleeve body being connected to the valve port, and the limit channel extending from the first end of the limit sleeve body to the second end of the limit sleeve body; the valve core is arranged in the limit sleeve body, the valve core has a sealing part and a valve core body, the sealing part is used for sealing the valve port, and the valve core body is used for limiting cooperation with the limit sleeve body.

[0007] Optionally, the limit sleeve body has at least three first side plates, all of which are connected end to end in sequence in the direction surrounding the first axis to form the limit channel; the outer wall of the valve core body abuts against the first side plates to form the abutment structure, and the flushing channel is formed between the connection position of two adjacent first side plates and the outer wall of the valve core body.

[0008] Optionally, the valve core body is cylindrical, and the axis of the valve core body is arranged along the first axis.

[0009] Optionally, the valve core has multiple second side plates, all of which are connected end to end in the direction surrounding the first axis to form the valve core body; the second side plates are arranged one-to-one with the first side plates, and the second side plates abut against the corresponding first side plates to form the abutment structure; the connecting position of two adjacent first side plates forms a first arc surface, and the connecting position of two adjacent second side plates forms a second arc surface, and the flushing channel is formed between the first arc surface and the corresponding second arc surface.

[0010] Optionally, the flow hole is provided on the first side plate.

[0011] Optionally, the limiting sleeve body is cylindrical, and the interior thereof is the limiting channel; the valve core has a plurality of second side plates, and all of the second side plates are connected end to end in sequence in the direction surrounding the first axis to form the valve core body; the connected position of two adjacent second side plates abuts against the inner wall of the limiting channel to form the abutment structure, and the flushing channel is formed between the outer surface of the second side plate and the inner surface of the limiting channel.

[0012] Optionally, the valve mouth member includes: a main body portion, having a first end and a second end in the direction of the first axis, the first end of the main body portion having a first end surface, the second end of the main body portion having a second end surface, and the second end surface being provided with a plug-in groove for plugging with a pipeline; a positioning protrusion, arranged on the first end surface, the valve port being arranged on the positioning protrusion and connected to the plug-in groove, and the first end of the limit sleeve body being sleeved on the positioning protrusion.

[0013] Optionally, the limiting sleeve further includes: a first folded edge connected to the first end of the limiting sleeve body, and the first folded edge abuts against the first end surface.

[0014] Optionally, the limiting sleeve further includes: a positioning sleeve connected to the outer peripheral wall of the first folded edge, and the positioning sleeve is sleeved on the main body.

[0015] Optionally, a first limiting portion is provided on the main body, and a second limiting portion matching the first limiting portion is provided on the positioning sleeve, and the first limiting portion and the second limiting portion are limitedly matched so that the limiting sleeve and the valve mouth member are limitedly matched in the direction of the first axis.

[0016] Optionally, the first limiting portion is a slot or a hook, and the second limiting portion is a hook or a slot.

[0017] Optionally, the limiting sleeve is an integrally formed structure.

[0018] According to a second aspect of the utility model, a one-way valve is also disclosed, which is used to be connected between a first pipeline and a second pipeline, and includes: the above-mentioned valve core assembly.

[0019] Optionally, the one-way valve also includes: a valve body, which has a first end and a second end in the direction of the first axis, the second end of the valve body forming a connecting port for communicating with the second pipeline; the valve port member includes: a main body and a positioning protrusion, the main body is arranged at the first end of the valve body, the main body has a first end face and a second end face in the direction of the first axis, the positioning protrusion is arranged on the first end face of the main body, the valve port is arranged on the positioning protrusion, and the limit sleeve is sleeved on the positioning protrusion; a plug-in groove for plug-in cooperation with the first pipeline is arranged on the second end face of the main body, and the valve port is communicated with the plug-in groove.

[0020] Optionally, the limit sleeve includes: a limit sleeve body, having a first end and a second end in the direction of the first axis, the first end of the limit sleeve body being connected to the valve mouth piece, and the limit channel extending from the first end of the limit sleeve body to the second end of the limit sleeve body; a first folded edge connected to the first end of the limit sleeve body, and the first folded edge abutting against the first end face.

[0021] Optionally, a limiting structure is provided on the inner wall of the valve body, and the main body presses the first folded edge against the limiting structure through the first end surface.

[0022] Optionally, the outer wall of the main body has a large diameter section and a small diameter section, the small diameter section is located between the large diameter section and the first end face of the main body, the large diameter section of the main body abuts against the inner circumferential wall of the valve body, and an avoidance channel is formed between the small diameter section and the inner circumferential wall of the valve body; the limit sleeve also includes: a positioning sleeve, connected to the outer circumferential wall of the first folded edge, the positioning sleeve is sleeved on the small diameter section, and the positioning sleeve is located in the avoidance channel.

[0023] Optionally, the limit sleeve also includes: a positioning sleeve connected to the outer peripheral wall of the first folded edge, and the positioning sleeve is sleeved on the main body; a first limiting portion is provided on the main body, and a second limiting portion matching the first limiting portion is provided on the positioning sleeve, and the first limiting portion and the second limiting portion are limitedly matched to enable the limit sleeve and the valve mouth member to be limitedly matched in the direction of the first axis.

[0024] Optionally, the outer wall of the main body has a large diameter section and a small diameter section, the small diameter section is located between the large diameter section and the first end face of the main body, the large diameter section of the main body abuts against the inner circumferential wall of the valve body, an avoidance channel is formed between the small diameter section and the inner circumferential wall of the valve body, and the second limiting portion is arranged on the small diameter section; the positioning sleeve is sleeved on the small diameter section, and the positioning sleeve is located in the avoidance channel.

[0025] Optionally, the second end surface of the main body is located in the valve body, and the second end surface of the main body and the inner wall of the first end of the valve body are used to form a receiving groove for receiving solder with the outer wall of the first pipeline.

[0026] According to a third aspect of the utility model, an air conditioner is also disclosed, comprising the one-way valve mentioned above.

[0027] The valve core assembly of the utility model forms a flushing channel between the outer wall of the valve core and the inner wall of the limiting channel. Therefore, the refrigerant will flow through the flushing channel while pushing the valve core to move. In the process of flowing through the flushing channel, the flowing refrigerant will carry away the foreign particles attached to the inner wall of the limiting channel and the outer wall of the valve core, thereby completing the flushing of the inner wall of the limiting channel and the outer wall of the valve core and reducing the risk of the valve core getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the valve core assembly of the first embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the cooperation between the valve core body and the limiting sleeve body of the valve core assembly of the first embodiment of the utility model;

[0030] Figure 3 It is a three-dimensional diagram of the valve core assembly of the first embodiment of the utility model;

[0031] Figure 4 This is a schematic diagram of the cooperation between the limiting sleeve body and the positioning protrusion of the valve core assembly in the first embodiment of the utility model;

[0032] Figure 5 This is a structural schematic diagram of the valve core assembly of the first embodiment of the utility model applied to a one-way valve;

[0033] Figure 6This is a structural schematic diagram of a valve core assembly according to Embodiment 2 of the present utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the valve core assembly of the third embodiment of the present utility model;

[0035] Figure 8 This is a schematic diagram of the cooperation between the valve core body and the limiting sleeve body of the valve core assembly of the third embodiment of the utility model;

[0036] Fig. 9 This is a schematic structural diagram of a valve core assembly according to a fourth embodiment of the present utility model;

[0037] Fig.10 It is a three-dimensional diagram of the valve core and the limiting sleeve of the valve core assembly of the fourth embodiment of the utility model;

[0038] Fig.11 It is a three-dimensional diagram of the valve core assembly of the fourth embodiment of the utility model;

[0039] Fig.12 This is a schematic diagram of the structure of the fourth embodiment of the utility model applied to a one-way valve;

[0040] Fig.13 It is a three-dimensional diagram of the valve core and the limiting sleeve of the valve core assembly of the fifth embodiment of the utility model;

[0041] Fig.14 This is a structural schematic diagram of the valve core assembly of the sixth embodiment of the utility model applied to a one-way valve;

[0042] Fig.15 This is a structural schematic diagram of the valve core assembly of Embodiment 7 of the utility model applied to a one-way valve;

[0043] Fig.16 This is a structural schematic diagram of a valve core assembly according to Embodiment 8 of the present utility model;

[0044] Fig.17 This is a schematic diagram of the structure of the valve core assembly of Embodiment 8 of the present utility model applied to a one-way valve;

[0045] Fig.18 This is a structural schematic diagram of a valve core assembly according to Embodiment 9 of the present utility model;

[0046] Fig.19 This is a structural schematic diagram of the valve core assembly of Embodiment 9 of the utility model applied to a one-way valve;

[0047] List of reference numerals:

[0048] 10. Valve port member; 11. Main body; 111. First end surface; 112. Second end surface;

[0049] 113, plug-in slot; 114, first limiting part; 115, large diameter section; 116, small diameter section; 117, avoidance channel; 12, positioning protrusion; 121, valve port; 20, limiting sleeve; 21, limiting sleeve body; 211, limiting channel; 212, flow hole; 213, first side plate; 214, first arc surface; 215, stopper; 22, first folding edge; 23, positioning sleeve; 231, second limiting part; 30, valve core; 31, blocking part; 32, valve core body; 321, second side plate; 322, second arc surface; 40, flushing channel; 50, valve body; 51, plug-in section; 52, valve core section; 53, pipe section; 531, connection port; 54, flow channel; 55, limiting structure; 60, first pipeline; 70, second pipeline; 80, accommodating slot. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the valve core assembly, the one-way valve and the air conditioner provided by the present invention are described in detail below in conjunction with the accompanying drawings.

[0051] 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.

[0052] However, when in use, there will inevitably be some foreign particles in the air conditioner pipeline, and these foreign particles will flow in the pipeline with the refrigerant. In some cases, these foreign particles will enter between the valve core and the limit sleeve, affecting the sliding of the valve core. In extreme cases, there is even a risk of causing the valve core to get stuck, resulting in failure of the one-way valve.

[0053] like Figures 1 to 19 As shown, the utility model discloses a valve core assembly, which is used in a one-way valve of an air conditioner to control the one-way flow of a refrigerant.

[0054] The valve core assembly includes: a valve port member 10, a limiting sleeve 20 and a valve core 30. The valve port member 10 has a valve port 121, and the valve port 121 has a first axis; the limiting sleeve 20 is connected to the valve port member 10, and a limiting channel 211 is provided inside the limiting sleeve 20 and runs through the first axis direction, the valve port 121 is communicated with the limiting channel 211, and a flow hole 212 communicated with the limiting channel 211 is provided on the outer wall of the limiting sleeve 20; the valve core 30 is movably arranged in the limiting channel 211 along the first axis direction, and the valve core 30 and the limiting sleeve 20 are limited in the direction perpendicular to the first axis, and the valve core 30 opens or closes the valve port 121 by moving; in the direction around the first axis, there are a plurality of abutment structures distributed at intervals between the outer wall of the valve core 30 and the inner wall of the limiting channel 211, and the outer wall of the valve core 30 and the inner wall of the limiting channel 211 form a flushing channel 40 between two adjacent abutment structures.

[0055] It can be understood that the valve core 30 has an open valve position and a closed valve position in the limiting channel 211, and the valve core 30 can move between the open valve position and the closed valve position; in the closed valve position, the valve core 30 abuts against the valve mouth member 10, thereby blocking the valve port 121; in the open valve position, the valve core 30 is separated from the valve mouth member 10, and the valve port 121 is connected to the flow hole 212 through the limiting channel 211.

[0056] When in use, the valve core 30 moves between the open valve position and the closed valve position under the push of the refrigerant. Since a flushing channel 40 is formed between the outer wall of the valve core 30 and the inner wall of the limiting channel 211, the refrigerant will flow through the flushing channel 40 while pushing the valve core 30 to move. In the process of flowing through the flushing channel 40, the flowing refrigerant will carry away the foreign particles attached to the inner wall of the limiting channel 211 and the outer wall of the valve core 30, thereby completing the flushing of the inner wall of the limiting channel 211 and the outer wall of the valve core 30, reducing the risk of the valve core 30 getting stuck.

[0057] The valve core assembly and the one-way valve of the present utility model are further described below in conjunction with specific embodiments.

[0058] In such Figures 1 to 5 In the illustrated embodiment 1, the limiting sleeve 20 comprises: a limiting sleeve body 21, which has a first end and a second end in the direction of the first axis, the first end of the limiting sleeve body 21 is connected to the valve port member 10, the second end of the limiting sleeve body 21 is provided with a stopper 215, and the limiting passage 211 runs from the first end of the limiting sleeve body 21 to the second end of the limiting sleeve body 21. When the valve core 30 moves to the valve opening position, it is limited and matched with the stopper 215 to prevent the valve core 30 from being separated from the second end of the limiting sleeve body 21.

[0059] The valve core 30 is disposed in the limiting sleeve body 21, and the valve core 30 has a blocking portion 31 and a valve core body 32. The blocking portion 31 is in a cone or truncated cone shape and is used to block the valve port 121. The valve core body 32 is used to cooperate with the limiting sleeve body 21 in limiting position. In this embodiment, in the valve closing position, the outer wall of the blocking portion 31 abuts against the side wall of the valve port 121 to block the valve port 121.

[0060] It should be noted that, in the present embodiment, in the valve closing position, the outer wall of the blocking portion 31 abuts against the side wall of the valve port 121 to block the valve port 121, that is, the blocking portion 31 is blocked inside the valve port 121. However, this is not restrictive. In some other embodiments not shown in the figure, the blocking portion 31 can also be blocked outside the valve port 121. For example, the blocking portion 31 of the valve core 30 is an open structure, and the end that cooperates with the stopper 215 is a closed end. In the valve closing position, the opening structure of the blocking portion 31 is sleeved on the outer peripheral wall of the valve port 121, thereby achieving blocking. In other words, as long as the method can achieve the blocking of the valve core 30 and the valve port 121, it is within the protection scope of the present invention without violating the principle and inventive concept of the present utility model.

[0061] In this embodiment, the valve core 30 is integrally formed, that is, the blocking portion 31 and the valve core body 32 are integrally formed. The valve core 30 can be integrally formed by stamping or stretching to form a cup-shaped hollow structure. Since the valve core 30 is formed into a cup-shaped hollow structure by stamping or stretching, the wall thickness is thin, the weight is light, and there is no connection gap such as a weld, and the overall strength is relatively higher.

[0062] It should also be noted that the cross-sectional shape of the limiting sleeve body 21 can be a regular polygon, an ellipse, or an irregular shape, such as a D-shape. The following further describes the limiting sleeve body 21 with a polygonal cross-sectional shape as an example.

[0063] In this embodiment, the limiting sleeve body 21 has at least three first side plates 213 , and all the first side plates 213 are sequentially connected end to end in a direction surrounding the first axis to form a limiting channel 211 .

[0064] like Figure 2 As shown, in this embodiment, the limiting sleeve body 21 is a hexagonal prism structure, that is, it is formed by six first side plates 213 connected end to end in a direction surrounding the first axis, and the six first side plates 213 also surround the limiting channel 211. Correspondingly, in this embodiment, the valve core body 32 is cylindrical, and the axis of the valve core body 32 is arranged along the first axis.

[0065] like Figure 2As shown, the outer wall of the valve core body 32 abuts against the first side plate 213 to form an abutment structure, and a flushing channel 40 is formed between the connection position of the two adjacent first side plates 213 and the outer wall of the valve core body 32. In other words, the outer peripheral wall of the valve core body 32 is equivalent to an incision with the inner peripheral wall of the limit sleeve body 21, which reduces the contact area between the valve core body 32 and the inner peripheral wall of the limit channel 211, thereby reducing the probability of foreign particles being stuck between the two. The valve core body 32 can achieve the limit of the valve core 30 in its own radial direction, that is, in the direction perpendicular to the first axis, by abutting against the first side plate 213, thereby preventing the valve core 30 from shaking in the limit channel 211 and reducing noise. At the same time, the position where the two adjacent first side plates 213 are connected forms an angle, and the inner walls on both sides of the angle form a flushing channel 40 with the outer wall of the valve core body 32, so that the refrigerant passes through to flush the inner wall of the limit channel 211 and the outer wall of the valve core 30.

[0066] It can be understood that in the present embodiment, the limiting sleeve body 21 is a hexagonal prism structure, but this is not restrictive. In some other embodiments not shown in the figure, the limiting sleeve body 21 can also be a triangular prism structure, a quadrangular prism structure, a pentagonal prism structure, a heptagonal prism structure, etc. As long as it is a prismatic structure, it is within the protection scope of the present invention without violating the principles and inventive concepts of the present utility model.

[0067] like Figure 3 As shown, in the present embodiment, an overflow hole 212 is provided on the first side plate 213. By providing the overflow hole 212 on the first side plate 213, in the present embodiment, the overflow hole 212 is formed by stamping the surface of the first side plate 213. Since the surface of the first side plate 213 is a planar structure, it is not easy to deform during the stamping process, thus facilitating size management and improving the yield rate.

[0068] like Figure 1 As shown, in this embodiment, the valve port member 10 includes: a body portion 11 and a positioning protrusion 12. The body portion 11 has a first end and a second end in the direction of the first axis, the first end of the body portion 11 has a first end surface 111, the second end of the body portion 11 has a second end surface 112, and the second end surface 112 is provided with a plug-in groove 113 for plugging with a pipeline; the positioning protrusion 12 is provided on the first end surface 111, the valve port 121 is provided on the positioning protrusion 12 and communicates with the plug-in groove 113, and the first end of the limit sleeve body 21 is sleeved on the positioning protrusion 12.

[0069] like Figure 4As shown, a positioning protrusion 12 is provided on the main body 11. The positioning protrusion 12 is in an annular structure, and the positioning protrusion 12 can be sleeved with the limiting sleeve body 21 to achieve positioning and convenient installation. In addition, during the installation process, after the limiting sleeve body 21 is sleeved with the positioning protrusion 12, it can be fixed by welding. Since the limiting sleeve body 21 is in a prismatic shape and the positioning protrusion 12 is in an annular structure, it is equivalent to the annular protrusion being inscribed in the inner wall of the limiting sleeve body 21. While achieving positioning, the contact area is reduced. Therefore, during welding, the high temperature is reduced from being transmitted to the valve port 121, thereby reducing the risk of high temperature deformation of the valve port 121.

[0070] In the above embodiment, the limiting sleeve body 21 is an integrally formed structure, for example, by stamping or stretching. Since the limiting sleeve 20 is an integrally formed structure, there is no connection gap such as a weld, and the overall strength of the limiting sleeve 20 is higher.

[0071] like Figure 5 The first embodiment shown is used in a one-way valve scenario, and the one-way valve is used to connect between the first pipeline 60 and the second pipeline 70 to control the one-way flow of the refrigerant. The one-way valve includes: the valve core assembly mentioned above.

[0072] Specifically, if Figure 5 As shown, the one-way valve further includes: a valve body 50 , the valve body 50 having a first end and a second end in the direction of the first axis, the second end of the valve body 50 forming a connection port 531 for communicating with the second pipeline 70 .

[0073] The body 11 is disposed at the first end of the valve body 50, the first end surface 111 of the body 11 faces the connection port 531 formed at the second end of the valve body 50, and the plug groove 113 disposed at the second end surface 112 of the body 11 is used for plugging and matching with the first pipeline 60. The first end of the limit sleeve body 21 is sleeved on the positioning protrusion 12, and a flow passage 54 is formed between the outer wall of the limit sleeve body 21 and the inner wall of the valve body 50, and the flow hole 212 is connected to the flow passage 54.

[0074] When the refrigerant flows from the first pipeline 60 to the second pipeline 70, the valve core 30 moves from the closed valve position to the open valve position under the push of the refrigerant. At this time, the valve core 30 is separated from the valve port 121, and the first pipeline 60 and the second pipeline 70 are connected through the valve port 121. The refrigerant in the first pipeline 60 flows into the second pipeline 70 through the valve port 121, the limiting channel 211, the flow hole 212, and the flow channel 54 in sequence; when the refrigerant flows from the second pipeline 70 to the first pipeline 60, the valve core 30 moves from the open valve position to the closed valve position under the action of the refrigerant. At this time, the valve core 30 blocks the valve port 121, so that the fluid in the second pipeline 70 cannot flow to the first pipeline 60.

[0075] like Figure 5As shown, in this embodiment, the second end surface 112 of the main body 11 is located in the valve body 50, and the second end surface 112 of the main body 11 and the inner wall of the first end of the valve body 50 are used to form a receiving groove 80 for receiving solder with the outer wall of the first pipeline 60.

[0076] When the first pipeline 60 is installed in the plug-in groove 113, the outer wall of the first pipeline 60, the second end face 112 of the main body 11 and the inner peripheral wall of the valve body 50 near the first end form a receiving groove 80 for receiving solder. In the process of welding the first pipeline 60 to the one-way valve, the solder can contact the first pipeline 60, the main body 11 of the valve mouth 10 and the valve body 50 after melting, so that the first pipeline 60, the valve mouth 10 and the valve body 50 are welded and fixed at one time, and the sealing between the first pipeline 60 and the valve mouth 10, and the sealing between the valve mouth 10 and the valve body 50 is completed, thereby improving the assembly efficiency. In addition, by providing the receiving groove 80, the contact area between the solder and the first pipeline 60, the valve mouth 10 and the valve body 50 is also increased, thereby improving the sealing and reliability of the connection.

[0077] It should be noted that, in the first embodiment, the valve core body 32 is cylindrical, but this is not restrictive. Figure 6 In the second embodiment of the utility model shown, a valve core assembly and a one-way valve are also disclosed, wherein the structures of the valve core assembly and the one-way valve are basically the same as those in the first embodiment, except that, in the present embodiment, the valve core body 32 has a plurality of second side plates 321, and all the second side plates 321 are connected end to end in the direction surrounding the first axis to form the valve core body 32. That is to say, in the present embodiment, the valve core body 32 is also in the shape of a prism, and corresponds to the prism formed by the limiting sleeve body 21. For example: if the limiting sleeve body 21 is a triangular prism, then the valve core body 32 is also a triangular prism; if the limiting sleeve body 21 is a quadrangular prism, then the valve core body 32 is also a quadrangular prism; if the limiting sleeve body 21 is a heptagonal prism, then the valve core body 32 is also a heptagonal prism. In the second embodiment, the limiting sleeve body 21 is a hexagonal prism, and the valve core body 32 is also a hexagonal prism.

[0078] like Figure 6 As shown, the second side plate 321 is arranged in a one-to-one correspondence with the first side plate 213, and the second side plate 321 abuts against the corresponding first side plate 213 to form an abutment structure, thereby realizing a limited fit in the direction perpendicular to the first axis. The connecting position of two adjacent first side plates 213 forms a first arc surface 214, and the connecting position of two adjacent second side plates 321 forms a second arc surface 322. A flushing channel 40 is formed between the first arc surface 214 and the corresponding second arc surface 322, as shown in FIG. Figure 6As shown, the first arc surface 214 formed at the connection of the two first side plates 213 has a smaller angle and a higher arc top, while the second arc surface 322 formed at the connection of the two second side plates 321 has a larger arc and a lower arc top. Therefore, a flushing channel 40 can be formed between the first arc surface 214 and the second arc surface 322 to achieve a flushing effect on the outer wall of the valve core body 32 and the inner wall of the limit sleeve body 21. In addition, in the second embodiment of the present utility model, by also setting the valve core body 32 to a prism shape corresponding to the limit sleeve body 21, a limit fit is also formed in the direction around the first axis, thereby limiting the relative rotation of the valve core 30 and the limit sleeve 20, thereby reducing the occurrence of shaking and reducing the noise during the use of the one-way valve.

[0079] In the first embodiment, the limiting sleeve body 21 is prismatic and the valve core body 32 is cylindrical, but this is not restrictive. Figure 7 and Figure 8 In the third embodiment of the utility model shown, a valve core assembly and a one-way valve are also disclosed. The structures of the valve core assembly and the one-way valve are basically the same as those of the first embodiment, except that, in the present embodiment, the limiting sleeve body 21 is cylindrical, and the interior thereof is a limiting channel 211; the valve core 30 has a plurality of second side plates 321, and all the second side plates 321 are sequentially connected end to end in the direction surrounding the first axis to form a valve core body 32. That is, in the present embodiment, the limiting sleeve body 21 is cylindrical, and the valve core body 32 is prismatic.

[0080] In this embodiment, if Figure 8 As shown, the valve core body 32 is in the shape of a hexagonal prism, and the two adjacent second side plates 321 are connected at the position abutting against the inner wall of the limiting channel 211 to form an abutting structure, and a flushing channel 40 is formed between the outer surface of the second side plate 321 and the inner surface of the limiting channel 211. In other words, the inner peripheral wall of the limiting sleeve body 21 is equivalent to the outer peripheral wall circumscribed to the valve core body 32. Since the connection between the adjacent second side plates 321 abuts against the inner wall of the limiting sleeve body 21, the contact area between the valve core body 32 and the inner peripheral wall of the limiting channel 211 is reduced, thereby reducing the probability of foreign particles being stuck between the two.

[0081] In addition, the valve core body 32 abuts against the inner wall of the limiting sleeve body 21 through the second side plate 321, so as to limit the valve core 30 in the direction perpendicular to the first axis, thereby preventing the valve core 30 from shaking in the limiting channel 211 and reducing noise. At the same time, the inner wall surface of the limiting channel 211 is arc-shaped and forms a flushing channel 40 with the surface of the second side plate 321, so that the refrigerant can pass through and flush the inner wall of the limiting channel 211 and the outer wall of the valve core 30.

[0082] It can be understood that in the present embodiment, the valve core body 32 is a hexagonal prism structure, but this is not restrictive. In some other embodiments not shown in the figure, the valve core body 32 can also be a triangular prism structure, a quadrangular prism structure, a pentagonal prism structure, a heptagonal prism structure, etc. As long as it is a prismatic structure, it is within the protection scope of the present invention without violating the principles and inventive concepts of the present utility model.

[0083] like Figures 9 to 12 The fourth embodiment of the utility model shown in FIG. 1 also discloses a valve core assembly and a one-way valve, and its structure is basically the same as that of the first embodiment, except that, in this embodiment, Fig. 9 As shown, the limiting sleeve 20 further includes: a first folded edge 22 , the first folded edge 22 is connected to the first end of the limiting sleeve body 21 , and the first folded edge 22 abuts against the first end surface 111 .

[0084] like Fig.10 As shown, in this embodiment, the limiting sleeve body 21 is in the shape of a hexagonal prism, the first folded edge 22 is in the shape of a ring and connected to the first end of the limiting sleeve body 21, and the valve core body 32 is in the shape of a cylinder. Fig.11 As shown, after the first end of the limiting sleeve body 21 is sleeved on the positioning protrusion 12, the first folded edge 22 is pressed against the first end surface 111 of the main body 11, and then the outer peripheral edge of the first folded edge 22 is welded to the first end surface 111 of the main body 11 to achieve fixation.

[0085] In this embodiment, since the first folded edge 22 is provided and the welding position is located at the outer periphery of the first folded edge 22 and is farther away from the valve port 121, less heat is transferred to the valve port 121 through the first end face 111. On the other hand, the heat transferred to the valve port 121 through the first folded edge 22 and the valve port 121 cover body will also reduce the heat transfer efficiency due to the reduced contact area between the valve port 121 cover body and the positioning protrusion 12, thereby reducing the heat transferred to the valve port 121, thereby effectively reducing the risk of high-temperature deformation at the valve port 121.

[0086] like Fig.12 As shown, in this embodiment, during assembly, the valve core 30 is placed in the limit sleeve 20, and then the limit sleeve 20 is sleeved on the positioning protrusion 12 of the valve mouth member 10, and then the valve core assembly is completed by welding and fixing. Finally, the valve core assembly can be placed as a whole in the valve body 50 and welded and fixed, thereby completing the assembly of the one-way valve.

[0087] It should be noted that in the above embodiment, the limiting sleeve 20 is an integrally formed structure. That is, the limiting sleeve body 21 and the first folded edge 22 are integrated. Since the limiting sleeve 20 adopts an integrally formed structure, there is no connection gap such as a weld, and the overall strength of the limiting sleeve 20 is higher. In addition, by providing the first folded edge 22, it can play a role of reinforcing the structure in the radial direction of the limiting sleeve body 21 to a certain extent, preventing the limiting sleeve 20 from deforming. Preferably, the limiting sleeve 20 can be integrally formed by a stretching or stamping process.

[0088] It should also be noted that, in this embodiment, the valve core body 32 is cylindrical, but this is not restrictive. Fig.13 In the fifth embodiment of the utility model shown, a valve core assembly is also disclosed, and its structure is basically the same as that of the fourth embodiment, except that, in this embodiment, the valve core body 32 has a plurality of second side plates 321, and all the second side plates 321 are connected end to end in the direction surrounding the first axis to form the valve core body 32. That is to say, in this embodiment, the valve core body 32 is also in the shape of a prism, and corresponds to the prism formed by the limiting sleeve body 21. For example: if the limiting sleeve body 21 is a triangular prism, then the valve core body 32 is also a triangular prism; if the limiting sleeve body 21 is a quadrangular prism, then the valve core body 32 is also a quadrangular prism; if the limiting sleeve body 21 is a heptagonal prism, then the valve core body 32 is also a heptagonal prism. In the second embodiment, the limiting sleeve body 21 is a hexagonal prism, and the valve core body 32 is also a hexagonal prism.

[0089] like Fig.13 As shown, the second side plate 321 is arranged in a one-to-one correspondence with the first side plate 213, and the second side plate 321 abuts against the corresponding first side plate 213 to form an abutment structure, thereby realizing a limited fit in the direction perpendicular to the first axis. The connecting position of two adjacent first side plates 213 forms a first arc surface 214, and the connecting position of two adjacent second side plates 321 forms a second arc surface 322. A flushing channel 40 is formed between the first arc surface 214 and the corresponding second arc surface 322, as shown in FIG. Fig.13 As shown, the first arc surface 214 formed at the connection of the two first side plates 213 has a smaller angle and a higher arc top, while the second arc surface 322 formed at the connection of the two second side plates 321 has a larger arc and a lower arc top. Therefore, a flushing channel 40 can be formed between the first arc surface 214 and the second arc surface 322 to achieve a flushing effect on the outer wall of the valve core body 32 and the inner wall of the limit sleeve body 21. In addition, in the fifth embodiment of the present utility model, by also setting the valve core body 32 to a prism shape corresponding to the limit sleeve body 21, a limit fit is also formed in the direction around the first axis, thereby limiting the relative rotation of the valve core 30 and the limit sleeve 20, thereby reducing the occurrence of shaking and reducing the noise during the use of the one-way valve.

[0090] like Fig.14The sixth embodiment of the utility model shown also discloses a valve core assembly and a one-way valve, and its structure is basically the same as that of the fourth embodiment. The difference is that, in this embodiment, a limiting structure 55 is provided on the inner wall of the valve body 50, and the main body 11 presses the first folded edge 22 against the limiting structure 55 through the first end face 111.

[0091] That is to say, in this embodiment, the limit sleeve 20 and the valve mouth member 10 are not welded, but the limit sleeve 20 and the valve mouth member 10 are relatively fixed through the cooperation between the valve mouth member 10 and the upper limit structure 55 of the valve body 50. In this way, the welding step is omitted and the efficiency of the assembly machine can be improved.

[0092] In this embodiment, the first folded edge 22 is connected to the first end of the limiting sleeve body 21 , the first end of the limiting sleeve body 21 is sleeved on the positioning protrusion 12 , and the first folded edge 22 abuts against the first end surface 111 .

[0093] In this embodiment, the valve body 50 includes: a plug-in section 51, a valve core section 52 and a pipe section 53. In the direction from the first end to the second end of the valve body 50, the plug-in section 51, the valve core section 52 and the pipe section 53 are connected in sequence. The main body 11 of the valve port member 10 is plugged and matched with the plug-in section 51, the valve core 30 is located in the valve core section 52, and the connecting port 531 is provided on the pipe section 53 so that the pipe section 53 is connected to the second pipeline 70, and a limiting structure 55 is formed at the connection between the plug-in section 51 and the valve core section 52. Among them, the inner diameter of the plug-in section 51 is larger than the inner diameter of the valve core section 52, and the limiting structure 55 is a limiting step formed at the connection between the plug-in section 51 and the valve core section 52.

[0094] During assembly, the limiting sleeve 20 can be first installed into the valve body 50 from the first end of the valve body 50, and the first folded edge 22 of the limiting sleeve 20 will abut against the limiting step to prevent the limiting sleeve 20 from coming out of the second end of the valve body 50, and then the valve mouth piece 10 can be installed into the valve body 50 from the first end of the valve body 50, and the positioning protrusion 12 of the valve mouth piece 10 faces the limiting sleeve 20, and the positioning protrusion 12 is inserted into the first end of the limiting sleeve body 21 of the limiting sleeve 20 by moving, and at the same time, the first end face 111 abuts against the first folded edge 22 and the first folded edge 22 is pressed against the limiting step to fix it. Of course, this is not restrictive, and the first end of the limiting sleeve body 21 can also be first sleeved on the positioning protrusion 12, and then the limiting sleeve 20 and the valve mouth piece 10 are installed from the first end of the valve body 50 together, which is also feasible.

[0095] In the one-way valve of the sixth embodiment of the utility model, since the limiting sleeve 20 is fixed by the valve mouth part 10 by pressing the first folded edge 22 of the limiting sleeve 20 against the limiting step, after the valve mouth part 10 and the valve body 50 are welded and fixed, the limiting sleeve 20 and the valve mouth part 10 and the valve body 50 are also relatively fixed. Therefore, the step of separately welding the limiting sleeve 20 and the valve mouth part 10 together is omitted, which can simplify the assembly steps, improve the assembly efficiency, and reduce the influence of the high temperature of welding on the valve mouth 121.

[0096] It should be noted that, in the present embodiment, the valve body 50 is an integrally formed structure, that is, the plug section 51, the valve core section 52 and the pipe section 53 are integrated. Since the valve body 50 adopts an integrally formed structure, there is no connection gap such as a weld, and the overall strength of the valve body 50 is higher. Preferably, the valve body 50 can be integrally formed by a stretching or stamping process. That is to say, the valve body 50 can be integrally formed by stamping a plate or by stretching a pipe. By adopting the above process, the wall thickness of the valve body 50 can be made more uniform, and the strength of the valve body 50 can be made more consistent.

[0097] It should also be noted that, in this embodiment, the inner diameter of the plug section 51 is larger than the inner diameter of the valve core section 52, and the limiting structure 55 is a limiting step formed at the connection between the plug section 51 and the valve core section 52. However, this is not restrictive. Fig.15 In the seventh embodiment of the utility model shown, a valve core assembly and a one-way valve are also disclosed, and the structure thereof is basically the same as that of the sixth embodiment, except that, in the present embodiment, the limiting structure 55 is a concave outer peripheral wall of the valve body 50 and an annular limiting protrusion is formed inside the valve body 50. By squeezing the outer peripheral wall of the valve body 50 toward the inside of the valve body 50, the outer peripheral wall of the valve body 50 is concave inward and a limiting protrusion is formed inside the valve body 50, thereby forming the limiting structure 55. In this way, the inner diameter of the valve core section 52 can be equal to or greater than the inner diameter of the plug section 51, so that the flow space of the refrigerant can be larger and the flow resistance of the refrigerant can be reduced.

[0098] like Fig.16 and Fig.17 The eighth embodiment of the present utility model shown in FIG. 1 also discloses a valve core assembly, and its structure is basically the same as that of the sixth embodiment, except that, in this embodiment, as shown in FIG. Fig.16 As shown, the outer wall of the main body 11 has a large diameter section 115 and a small diameter section 116, and the small diameter section 116 is located between the large diameter section 115 and the first end surface 111 of the main body 11. Fig.17 As shown, the large diameter section 115 of the main body 11 abuts against the inner peripheral wall of the valve body 50 , and an avoidance channel 117 is formed between the small diameter section 116 and the inner peripheral wall of the valve body 50 .

[0099] The limiting sleeve 20 further includes a positioning sleeve 23 , which is connected to the outer peripheral wall of the first folded edge 22 , is sleeved on the small diameter section 116 , and is located in the avoidance channel 117 .

[0100] In this embodiment, by providing a positioning sleeve 23 and cooperating with the avoidance channel 117 formed between the small diameter section 116 of the main body 11 and the valve body 50, the positioning sleeve 23 can be sleeved on the small diameter section 116 and located in the avoidance channel 117, thereby better realizing the limit fit and improving the reliability of the limit.

[0101] like Fig.18 and Fig.19 The ninth embodiment of the utility model shown in the figure also discloses a valve core assembly, and its structure is basically the same as that of the fourth embodiment, except that, in the present embodiment, the limit sleeve 20 also includes: a positioning sleeve 23, the positioning sleeve 23 is connected to the outer peripheral wall of the first folded edge 22, and the positioning sleeve 23 is sleeved on the main body 11; the main body 11 is provided with a first limit portion 114, and the positioning sleeve 23 is provided with a second limit portion 231 matching the first limit portion 114, and the first limit portion 114 is limitedly matched with the second limit portion 231, so that the limit sleeve 20 and the valve mouth member 10 are limitedly matched in the first axial direction.

[0102] During assembly, the limiting sleeve 20 is limitedly matched with the first limiting portion 114 on the valve mouth member 10 through the second limiting portion 231, so that the limiting sleeve 20 and the valve mouth member 10 are fixedly connected. After the valve mouth member 10 and the valve body 50 are welded and fixed, the limiting sleeve 20 is also fixed relative to the valve mouth member 10 and the valve body 50, thereby eliminating the step of separately welding the limiting sleeve 20 and the valve mouth member 10 together, simplifying the assembly process and improving the assembly efficiency.

[0103] Specifically, in this embodiment, if Fig.18 As shown, the outer wall of the main body 11 has a large diameter section 115 and a small diameter section 116, and the small diameter section 116 is located between the large diameter section 115 and the first end face 111 of the main body 11, and the large diameter section 115 of the main body 11 abuts against the inner circumferential wall of the valve body 50, and an avoidance channel 117 is formed between the small diameter section 116 and the inner circumferential wall of the valve body 50, and the second limiting portion 231 is arranged on the small diameter section 116; the positioning sleeve 23 is sleeved on the small diameter section 116, and the positioning sleeve 23 is located in the avoidance channel 117, preferably, the first limiting portion 114 is a slot, and the second limiting portion 231 is a hook, and the fixing of the limiting sleeve 20 and the valve mouth member 10 in the first axial direction is achieved by the limiting cooperation between the slot and the hook.

[0104] It should be noted that, in the present embodiment, the first limiting portion 114 is a slot and the second limiting portion 231 is a hook, but this is not restrictive, and in some other embodiments not shown in the figure, the first limiting portion 114 may be a hook and the second limiting portion 231 may be a slot. Without violating the inventive concept of the present utility model, the above situations all fall within the protection scope of the present utility model.

[0105] In the above embodiment, the limiting sleeve 20 is an integrally formed structure. The limiting sleeve 20 is an integrally formed structure, that is, the limiting sleeve body 21, the first folded edge 22 and the positioning sleeve 23 are integrated. Since the limiting sleeve 20 adopts an integrally formed structure, there is no connection gap such as a weld, and the overall strength of the limiting sleeve 20 is higher. Moreover, by setting the first folded edge 22, it can play a role of reinforcing the structure in the radial direction of the limiting sleeve 20 tube to a certain extent, preventing the limiting sleeve 20 tube from deforming. Preferably, the limiting sleeve 20 can be integrally formed by a stretching or stamping process.

[0106] According to a second aspect of the utility model, an air conditioner is also disclosed, comprising the one-way valve mentioned above.

[0107] 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 valve core assembly, characterized in that: include: A valve port member (10) having a valve port (121), wherein the valve port (121) has a first axis; A limiting sleeve (20) is connected to the valve port member (10); a limiting channel (211) penetrating along the first axis direction is provided inside the limiting sleeve (20); the valve port (121) is communicated with the limiting channel (211); and a flow hole (212) communicated with the limiting channel (211) is provided on the outer wall of the limiting sleeve (20); A valve core (30) is movably arranged in the limiting passage (211) along the first axis direction. In a direction perpendicular to the first axis, the valve core (30) is limitedly matched with the limiting sleeve (20). The valve core (30) opens or closes the valve port (121) by moving. In the direction around the first axis, a plurality of spaced-apart abutment structures are provided between the outer wall of the valve core (30) and the inner wall of the limiting channel (211), and a flushing channel (40) is formed between two adjacent abutment structures between the outer wall of the valve core (30) and the inner wall of the limiting channel (211).

2. The valve core assembly according to claim 1, characterized in that: The limiting sleeve (20) comprises: A limiting sleeve body (21) has a first end and a second end in the direction of the first axis, the first end of the limiting sleeve body (21) is connected to the valve port member (10), and the limiting channel (211) runs from the first end of the limiting sleeve body (21) to the second end of the limiting sleeve body (21); The valve core (30) is arranged in the limiting sleeve body (21), and the valve core (30) comprises a blocking portion (31) and a valve core body (32), the blocking portion (31) is used for blocking the valve port (121), and the valve core body (32) is used for limiting cooperation with the limiting sleeve body (21).

3. The valve core assembly according to claim 2, characterized in that: The limiting sleeve body (21) has at least three first side plates (213), and all the first side plates (213) are sequentially connected end to end in a direction surrounding the first axis to form the limiting channel (211); The outer wall of the valve core body (32) abuts against the first side plate (213) to form the abutment structure, and the flushing channel (40) is formed between the connection position of two adjacent first side plates (213) and the outer wall of the valve core body (32).

4. The valve core assembly according to claim 3, characterized in that: The valve core body (32) is cylindrical, and the axis of the valve core body (32) is arranged along the first axis.

5. The valve core assembly according to claim 3, characterized in that: The valve core (30) has a plurality of second side plates (321), and all the second side plates (321) are sequentially connected end to end in a direction surrounding the first axis to form the valve core body (32); The second side plate (321) and the first side plate (213) are arranged in a one-to-one correspondence, and the second side plate (321) and the corresponding first side plate (213) abut against each other to form the abutment structure; The connecting position of two adjacent first side plates (213) forms a first curved surface (214), the connecting position of two adjacent second side plates (321) forms a second curved surface (322), and the flushing channel (40) is formed between the first curved surface (214) and the corresponding second curved surface (322).

6. The valve core assembly according to claim 3, characterized in that: The first side plate (213) is provided with the flow hole (212).

7. The valve core assembly according to claim 2, characterized in that: The limiting sleeve body (21) is cylindrical, and the inside thereof is the limiting channel (211); The valve core (30) has a plurality of second side plates (321), and all the second side plates (321) are sequentially connected end to end in a direction surrounding the first axis to form the valve core body (32); The connecting position of two adjacent second side plates (321) abuts against the inner wall of the limiting channel (211) to form the abutment structure, and the flushing channel (40) is formed between the outer surface of the second side plate (321) and the inner surface of the limiting channel (211).

8. The valve core assembly according to claim 2, characterized in that: The valve port member (10) comprises: A main body (11) having a first end and a second end in the direction of the first axis, the first end of the main body (11) having a first end surface (111), the second end of the main body (11) having a second end surface (112), and the second end surface (112) being provided with a plug-in groove (113) for plugging and mating with a pipeline; A positioning protrusion (12) is arranged on the first end surface (111), the valve port (121) is arranged on the positioning protrusion (12) and communicates with the insertion groove (113), and the first end of the limiting sleeve body (21) is sleeved on the positioning protrusion (12).

9. The valve core assembly according to claim 8, characterized in that: The limiting sleeve (20) further comprises: The first folded edge (22) is connected to the first end of the limiting sleeve body (21), and the first folded edge (22) is in contact with the first end surface (111).

10. The valve core assembly according to claim 9, characterized in that: The limiting sleeve (20) further comprises: A positioning sleeve (23) is connected to the outer peripheral wall of the first folded edge (22), and the positioning sleeve (23) is sleeved on the main body (11).

11. The valve core assembly according to claim 10, characterized in that: The main body (11) is provided with a first limiting portion (114), and the positioning sleeve (23) is provided with a second limiting portion (231) matching the first limiting portion (114). The first limiting portion (114) and the second limiting portion (231) are limitedly matched so that the limiting sleeve (20) and the valve mouth member (10) are limitedly matched in the direction of the first axis.

12. The valve core assembly according to claim 11, characterized in that: The first limiting portion (114) is a slot or a hook, and the second limiting portion (231) is a hook or a slot.

13. The valve core assembly according to claim 11, characterized in that: The limiting sleeve (20) is an integrally formed structure.

14. A one-way valve, used for connecting between a first pipeline (60) and a second pipeline (70), characterized in that: include: A valve core assembly according to any one of claims 1 to 13.

15. The one-way valve according to claim 14, characterized in that: The one-way valve also includes: a valve body (50) having a first end and a second end in the direction of the first axis, the second end of the valve body (50) forming a connection port (531) for communicating with the second pipeline (70); The valve port member (10) comprises: a main body (11) and a positioning protrusion (12); the main body (11) is arranged at the first end of the valve body (50); the main body (11) has a first end surface (111) and a second end surface (112) in the direction of the first axis; the positioning protrusion (12) is arranged on the first end surface (111) of the main body (11); the valve port (121) is arranged on the positioning protrusion (12); and the limiting sleeve (20) is sleeved on the positioning protrusion (12); The second end surface (112) of the main body (11) is provided with a plug-in groove (113) for plugging and matching with the first pipeline (60), and the valve port (121) is communicated with the plug-in groove (113).

16. The one-way valve according to claim 15, characterized in that: The limiting sleeve (20) comprises: A limiting sleeve body (21) has a first end and a second end in the direction of the first axis, the first end of the limiting sleeve body (21) is connected to the valve port member (10), and the limiting channel (211) runs from the first end of the limiting sleeve body (21) to the second end of the limiting sleeve body (21); The first folded edge (22) is connected to the first end of the limiting sleeve body (21), and the first folded edge (22) is in contact with the first end surface (111).

17. The one-way valve according to claim 16, characterized in that: A limiting structure (55) is provided on the inner wall of the valve body (50), and the main body (11) presses the first folded edge (22) against the limiting structure (55) via the first end surface (111).

18. The one-way valve according to claim 17, characterized in that: The outer wall of the main body (11) comprises a large diameter section (115) and a small diameter section (116); the small diameter section (116) is located between the large diameter section (115) and the first end surface (111) of the main body (11); the large diameter section (115) of the main body (11) abuts against the inner peripheral wall of the valve body (50); and an avoidance channel (117) is formed between the small diameter section (116) and the inner peripheral wall of the valve body (50); The limiting sleeve (20) further comprises: a positioning sleeve (23) connected to the outer peripheral wall of the first folded edge (22), the positioning sleeve (23) being sleeved on the small diameter section (116), and the positioning sleeve (23) being located in the avoidance channel (117).

19. The one-way valve according to claim 16, characterized in that: The limiting sleeve (20) further comprises: A positioning sleeve (23) connected to the outer peripheral wall of the first folded edge (22), the positioning sleeve (23) being sleeved on the main body (11); The main body (11) is provided with a first limiting portion (114), and the positioning sleeve (23) is provided with a second limiting portion (231) matching the first limiting portion (114). The first limiting portion (114) and the second limiting portion (231) are limitedly matched so that the limiting sleeve (20) and the valve mouth member (10) are limitedly matched in the direction of the first axis.

20. The one-way valve according to claim 19, characterized in that The outer wall of the main body (11) comprises a large diameter section (115) and a small diameter section (116); the small diameter section (116) is located between the large diameter section (115) and the first end surface (111) of the main body (11); the large diameter section (115) of the main body (11) abuts against the inner peripheral wall of the valve body (50); an avoidance channel (117) is formed between the small diameter section (116) and the inner peripheral wall of the valve body (50); and the second limiting portion (231) is arranged on the small diameter section (116); The positioning sleeve (23) is sleeved on the small-diameter section (116), and the positioning sleeve (23) is located in the avoidance channel (117).

21. The one-way valve according to claim 15, characterized in that: The second end surface (112) of the main body (11) is located inside the valve body (50), and the second end surface (112) of the main body (11) and the inner wall of the first end of the valve body (50) are used to form a receiving groove (80) for receiving solder together with the outer wall of the first pipeline (60).

22. An air conditioner, characterized in that: A one-way valve comprising the one-way valve according to any one of claims 14 to 21.

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