WO2022148417A1 - 单向阀及具有其的空调机 - Google Patents

单向阀及具有其的空调机 Download PDF

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Publication number
WO2022148417A1
WO2022148417A1 PCT/CN2022/070641 CN2022070641W WO2022148417A1 WO 2022148417 A1 WO2022148417 A1 WO 2022148417A1 CN 2022070641 W CN2022070641 W CN 2022070641W WO 2022148417 A1 WO2022148417 A1 WO 2022148417A1
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WO
WIPO (PCT)
Prior art keywords
valve
stop rod
limit
cover
limiting
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PCT/CN2022/070641
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English (en)
French (fr)
Inventor
金华海
宣永斌
Original Assignee
浙江盾安人工环境股份有限公司
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Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2023528002A priority Critical patent/JP7519541B2/ja
Priority to KR1020237019032A priority patent/KR20230096117A/ko
Priority to EP22736579.8A priority patent/EP4276336A4/en
Publication of WO2022148417A1 publication Critical patent/WO2022148417A1/zh
Priority to US18/216,605 priority patent/US20230341157A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves

Definitions

  • the present application relates to the technical field of valves, in particular to a one-way valve and an air conditioner having the same.
  • a check valve is a valve that allows a medium to flow in only one direction and suppresses the flow in the opposite direction. This check valve is installed in a hydraulic circuit or a piping of a refrigeration cycle system to prevent backflow of the medium.
  • the normal one-way valve realizes the opening and closing function of the one-way valve by moving the valve core in the valve body.
  • the valve core can rotate freely inside the body, and the valve core will rotate in the valve body due to the internal medium, thereby generating noise.
  • the present application provides a one-way valve.
  • a one-way valve comprising a valve body, a valve cover and a valve core
  • the valve body has a valve cavity and a valve port
  • the valve core is located in the valve cavity, and can move in the valve cavity to open and close
  • the valve port and the valve cover are arranged on the valve body, which can restrict the valve core from leaving the valve cavity along the axis direction of the valve body; the valve cover or the valve body is close to the valve cover
  • a stop rod is provided on one end of the valve core, and a limit part is provided on the valve core, and the stop part can cooperate with the stop rod to limit the circumferential position of the valve core.
  • This arrangement can limit the spool in the circumferential direction to prevent the spool from rotating during the axial movement of the one-way valve and colliding with the inner wall of the valve body or the valve cover to generate noise during the rotation.
  • the plurality of limit parts are arranged along the circumference of the valve core, and the stop rod is penetrated between any two limit parts. and can be in contact with the side wall of the limiting portion.
  • a placement area is formed between any two limit parts, and one end of the stop rod is located in one of them Placement area, the other end extends into another placement area.
  • This arrangement ensures that the clockwise and counterclockwise rotation of the valve core can limit the position, and saves the number of limit parts, preventing too many limit parts from being set too much and occupying too much the volume of the valve cavity, thus affecting the medium. flow capacity.
  • the stop rod is arranged perpendicular to the axial direction of the one-way valve.
  • the length of the stop rod can be shortened and the installation space can be saved while the stop rod can be matched with any two limit parts.
  • the axis of the stop rod is collinear with the center line of the end face of the valve cover at one end of the stop rod close to the stop rod.
  • a limiting groove is defined on the valve cover, a limiting step is provided on the inner wall of one end of the valve body close to the valve cover, and the stop rod is arranged in the limiting groove and abuts against the limiting groove. connected to the limit step.
  • the inner wall of one end of the valve body close to the valve cover is provided with a limit step, the limit groove is opened on the limit step, and the stop rod is arranged on the limit The groove is in contact with the end face of the valve cover close to the valve body.
  • the limiting portion includes a wing plate and a tail wing
  • the tail wing is provided on the wing plate
  • the tail wing is protruded from an end of the valve core close to the valve cover, so that the The stop rod can cooperate with the side wall of the tail.
  • valve core can be axially limited.
  • one side of the limiting portion extends toward the direction close to the inner wall of the valve body and protrudes from the side surface of the valve core, and a flow channel is formed between two adjacent limiting portions.
  • the cross section of the stop rod is circular, square or triangular.
  • An air conditioner includes the above-mentioned one-way valve.
  • a stop rod is provided on the valve cover or valve body, and a limit part is set on the valve core, and the stop rod and the limit part cooperate to prevent the valve.
  • the core is limited in the circumferential direction to prevent the valve core from impacting the inner wall of the valve body or the valve cover and causing noise during the axial movement.
  • FIG. 1 is an exploded view of a one-way valve according to one of the embodiments provided by the application;
  • FIG. 2 is a schematic cross-sectional structure diagram of a one-way valve according to one embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a valve core and a valve cover according to one embodiment
  • Fig. 5 is the structural schematic diagram of the valve cover of one of the embodiments.
  • FIG. 6 is a schematic structural diagram of a valve body according to another embodiment.
  • valve body 100, one-way valve; 10, valve body; 11, valve cavity; 12, first pipe; 13, second pipe; 14, valve port; 15, limit step; 20, valve cover; 21, stop rod; 22, limit groove; 40, valve core; 41, limit part; 411, wing plate; 412, tail wing; 413, second step; 414, placement area; 42, sealing surface.
  • a component when referred to as being “mounted on” another component, it can be directly on the other component or there may also be an intervening component.
  • a component When a component is considered to be “set on” another component, it may be directly set on the other component or there may be a co-existing centered component.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may also be an intervening component.
  • the present application provides a one-way valve 100.
  • the one-way valve 100 can be used in an air conditioner to prevent the reverse flow of refrigerant, and can also be used in a hydraulic system to prevent the reverse flow of oil flow, or used for Prevents the reverse flow of compressed air in pneumatic systems.
  • the one-way valve 100 provided by the present application includes a valve body 10 , a valve cover 20 and a valve core 40 .
  • the valve body 10 has a valve cavity 11 and a valve port 14 is opened in the valve body 10 .
  • the valve core 40 is located in the valve cavity 11 , the valve core 40 can move in the valve cavity 11 to open and close the valve port 14 , and the valve cover 20 is covered on the valve body 10 , which can limit the valve core 40 from disengaging along the axis direction of the valve body 10 Valve chamber 11.
  • Both ends of the valve body 10 are further provided with a first connecting pipe 12 and a second connecting pipe 13, and the diameters of the first connecting pipe 12 and the second connecting pipe 13 are both smaller than the diameter of the valve body 10, and the valve cover 20 is a hollow structure with openings at both ends.
  • the first nozzle 12 is connected to the end of the valve body 10 away from the valve cover 20, and the second nozzle 13 is connected to the valve cover 20; in addition, the valve body 10 and the first nozzle 12, as well as the valve cover 20 and the second nozzle 13 can be integrally formed , can also be connected separately.
  • valve body 10 has a long cylindrical shape as a whole and is formed into a hollow structure.
  • the valve body 10 is made of cast copper material; of course, in other embodiments, the valve body 10 can also be made of cast iron or other materials. The material is not limited here.
  • valve cover 20 or the end of the valve body 10 close to the valve cover 20 is provided with a stop rod 21
  • the valve core 40 is provided with a limit portion 41
  • the stop rod 21 can cooperate with the limit portion 41 to rotate the valve core 40 . to the limit.
  • the usual one-way valve realizes the opening and closing function of the one-way valve by moving the valve core in the valve body, and the valve core can rotate freely inside the valve body. During the working process of the one-way valve, the valve core will It rotates through the passing medium, thereby generating noise.
  • the circumferential movement of the valve core 40 is limited by the cooperation of the stop rod 21 and the limiting portion 41 , so as to prevent the valve core 40 from colliding with the inner wall of the valve body 10 or the valve cover 20 to generate noise.
  • the check valve 100 since the application uses the gravity check valve 100 that relies on the self-gravity of the valve core 40 to close the valve port 14 to prevent backflow, the check valve 100 is placed vertically to achieve The effect of the one-way flow of the one-way valve 100.
  • the medium refers to the fluid flowing through the one-way valve 100 .
  • the medium is a refrigerant, and in other embodiments, the medium can be compressed air or the like.
  • the multiple limiting portions 41 are evenly distributed along the circumferential direction of the valve core 40 , and the stop rod 21 is inserted between any two limiting portions 41 .
  • the stop rod 21 can abut against the side wall of the limiting portion 41 to limit the circumferential movement of the valve core 40 . In this way, the cooperation between the stop rod 21 and the limiting portion 41 can not only limit the clockwise rotation of the valve core 40 , but also limit the counterclockwise rotation of the valve core 40 .
  • a placement area 414 is formed between any two limiting portions 41 , one end of the stop rod 21 is located in one placement area 414 , and the other One end extends into the other placement area 414 , so that the stop rod 21 can cooperate with the three limiting portions 41 to limit the position.
  • the provision of three limit parts 41 can not only limit the clockwise and counterclockwise rotation of the valve core 40 , but also can reduce the number of limit parts 41 and avoid too many limit parts 41 occupying the valve cavity 11 , which affects the flow capacity of the one-way valve 100 , and at the same time, the limiting portion 41 can keep the valve core 40 in balance.
  • a limiting groove 22 is formed on the valve cover 20 , the stop rod 21 is provided in the limiting groove 22 , and a limiting step is provided on the inner wall of the end of the valve body 10 close to the valve cover 20 15.
  • the end face of the valve cover 20 close to the valve body 10 abuts on the limit step 15. Since one side of the limit groove 22 is open, one side of the stop rod 21 abuts on the limit step 15, thereby fixing the stop.
  • the moving rod 21 and the limiting step 15 also play a limiting role for the valve cover 20 .
  • a limiting step 15 is provided on the inner wall of one end of the valve body 10 close to the valve cover 20 , a limiting groove 22 is defined on the limiting step 15 , and the valve cover 20 is close to the end face of the valve body 10 .
  • the stop rod 21 is arranged perpendicular to the axis of the check valve 100 , so that both ends of the stop rod 21 can cooperate with the limiting portion 41 to limit the position. While all the limiting portions 41 can function, the length of the stop rod 21 is shortened and space is saved.
  • the axis of the stop rod 21 is collinear with the center line of the end face of the valve cover 20 close to one end of the stop rod 21 .
  • This arrangement can extend the length of the stop rod 21 and ensure that the stop rod 21 is evenly aligned with each limit portion 41 . Can cooperate to better play a limiting role.
  • the cross section of the stop lever 21 may be circular, square or triangular.
  • the limiting portion 41 includes a wing plate 411 and a tail wing 412 , the tail wing 412 is disposed on the wing plate 411 , and the tail wing 412 is protruded from the end face of the valve core 40 close to the valve cover 20 , so that the tail wing 412 can be connected with the stopper.
  • the side wall of the rod 21 is matched, and a second step 413 is provided between the tail wing 412 and the wing plate 411 .
  • the setting of the second step 413 makes the outer side of the tail wing 412 indent relative to the wing plate 411, reducing the diameter of the circumscribed circle of the tail wing 412, so that the tail wing 412 can extend into the valve cover 20, so that the stop rod 21 can be connected with the tail wing
  • the side wall of 412 cooperates to realize the limiting effect on the valve core 40 .
  • One side of the limiting portion 41 is protruded toward the inner wall of the valve body 10 , and a flow channel is formed between two adjacent limiting portions 41 for the medium to flow.
  • One end of the valve core 40 away from the stop rod 21 has a sealing surface 42 , and the sealing surface 42 can cooperate with the inner wall of the valve body 10 to seal the valve port 14 .
  • the sealing surface 42 is a tapered surface, and can form a tapered surface seal with the valve port 14 to enhance sealing performance.
  • the present application also provides an air conditioner (not shown), which includes the above-mentioned one-way valve 100 .
  • valve port 14 When the medium enters the valve port 14 from the first nozzle 12, the pressure of the medium will push the valve core 40 away from the valve port 14. At this time, the valve port 14 is opened, and when the medium faces the second During the flow in the direction of the nozzle 13, the valve core 40 will simultaneously move towards the direction close to the second nozzle 13 and rotate around the axis of the valve body 10. During the movement, it collides with the inner wall of the valve body 10 to generate noise.
  • valve core 40 When the valve core 40 When it moves close to the valve cover 20, the stop rod 21 is in contact with the side wall of the limiting portion 41, the tail wing 412 is in contact with the inner wall of the valve cover 20, the valve core 40 stops moving, and the noise also stops immediately; on the other hand, when When a medium flows from the second connecting pipe 13 to the first connecting pipe 12, the valve core 40 moves toward the valve port 14 to close the valve port 14 under the push of the medium, thereby preventing the medium from flowing into the first connecting pipe 12, avoiding the backflow of the medium, and realizing The effect of the one-way flow of the one-way valve 100 is achieved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Check Valves (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)

Abstract

一种单向阀及具有其的空调机。单向阀包括阀体（10）、阀盖（20）和阀芯（40），阀体（10）内具有阀腔（11）及阀口（14），阀芯（40）位于阀腔（11）内，用于启闭阀口（14），阀盖（20）盖设于阀体（10），能够限制阀芯（40）沿阀体（10）轴线方向脱离阀腔（11）；阀盖（20）或阀体（10）靠近阀盖（20）的一端上设有止动杆（21），阀芯（40）上设有限位部（41），限位部（41）能够与止动杆（21）配合，以对阀芯（40）进行周向限位。

Description

单向阀及具有其的空调机
相关申请
本申请要求2021年1月8日申请的，申请号为202120055212.5，发明名称为“单向阀及具有其的空调机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及阀门技术领域，特别是涉及一种单向阀及具有其的空调机。
背景技术
单向阀是一种使介质仅向一个方向流动而抑制向相反方向流动的阀，这种单向阀设置在液压回路或者制冷循环***的配管等，以用来防止介质的逆流。
通常的单向阀，通过阀芯在阀体内移动实现单向阀的启闭功能，阀芯在法体内部可以自由旋转，阀芯会因为内部的介质在阀体内转动，从而产生噪音。
发明内容
有鉴于此，针对上述技术问题，本申请提供了一种单向阀。
为解决上述技术问题，本申请提供如下技术方案：
一种单向阀，包括阀体、阀盖和阀芯，所述阀体内具有阀腔及阀口，所述阀芯位于所述阀腔内，并能在所述阀腔内运动以启闭所述阀口，所述阀盖盖设于所述阀体，能够限制所述阀芯沿所述阀体轴线方向脱离所述阀腔；所述阀盖或所述阀体靠近所述阀盖的一端上设有止动杆，所述阀芯上设有限位部，所述限位部能够与所述止动杆配合，以对所述阀芯进行周向限位。
如此设置，能够对于阀芯进行周向限位，防止阀芯在沿着单向阀轴向运动的过程中而发生旋转，在旋转的过程中与阀体的内壁或阀盖撞击而产生噪音。
在其中一个实施方式中，所述限位部为多个，多个所述限位部沿所述阀芯的周向布置，所述止动杆穿设于任意两个所述限位部之间，且能够与所述限位部的侧壁抵接。
如此设置，既能够对于阀芯的逆时针旋转进行限位，又能够对于其顺时针旋转进行限位。
在其中一个实施方式中，所述限位部为三个，沿着所述阀芯的周向，任意两个所述限 位部之间形成放置区，所述止动杆的一端位于其中一个放置区内，另一端延伸至另一个放置区内。
如此设置，在保证阀芯的顺时针、逆时针旋转均能进行限位时，又节省限位部的个数，防止限位部设置过多，而占用过多阀腔的容积，从而影响介质的流通能力。
在其中一个实施方式中，所述止动杆与所述单向阀的轴向垂直设置。
如此设置，能够在使得止动杆能够与任意两个限位部配合的同时，缩短止动杆的长度，节省安装空间。
在其中一个实施方式中，所述止动杆的轴线与阀盖靠近所述止动杆的一端的端面的中心线共线。
如此设置，能够保证止动杆与任意两个限位部配合。
在其中一个实施方式中，所述阀盖上开设有限位槽，所述阀体靠近所述阀盖的一端的内壁设有限位台阶，所述止动杆设于所述限位槽内并抵接于所述限位台阶。
如此设置，以固定止动杆。
在其中一个实施方式中，所述阀体靠近所述阀盖的一端的内壁设有限位台阶，所述限位台阶上开设有所述限位槽，所述止动杆设于所述限位槽内并与所述阀盖靠近所述阀体的端面抵接。
如此设置，以固定止动杆。
在其中一个实施方式中，所述限位部包括翼板及尾翼，所述尾翼设于所述翼板上，所述尾翼相对所述阀芯靠近所述阀盖的一端凸出设置，以使所述止动杆能够与所述尾翼的侧壁配合。
如此设置，能够对于所述阀芯进行轴向限位。
在其中一个实施方式中，所述限位部的一侧朝向靠近所述阀体内壁的方向延伸并凸出所述阀芯的侧面设置，相邻两个所述限位部之间形成流道。
如此设置，以供介质流通。
在其中一个实施方式中，所述止动杆的截面呈圆形、方形或三角形。
本申请还提供如下技术方案：
一种空调机，包括上述单向阀。
与相关技术相比，本申请提供的单向阀，通过在阀盖或阀体上设置止动杆，在阀芯上设置限位部，通过止动杆与限位部的配合，以对阀芯进行周向限位，避免阀芯在轴向运动的过程中冲击阀体内壁或阀盖而产生噪音。
附图说明
图1为本申请提供的其中一个实施例的单向阀的***图；
图2为本申请提供的其中一个实施例的单向阀的剖面结构示意图；
图3为其中一个实施例的阀芯与阀盖的结构示意图；
图4为其中一个实施的阀芯的结构示意图；
图5为其中一个实施例的阀盖的结构示意图；
图6为另一个实施例的阀体的结构示意图。
图中各符号表示含义如下：
100、单向阀；10、阀体；11、阀腔；12、第一接管；13、第二接管；14、阀口；15、限位台阶；20、阀盖；21、止动杆；22、限位槽；40、阀芯；41、限位部；411、翼板；412、尾翼；413、第二台阶；414、放置区；42、密封面。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请参见图1至图6，本申请提供一种单向阀100，该单向阀100应用于空调机中防止制冷剂倒流，还可以用于液压***中防止油流反向流动，或者用于气动***中防止压缩空气逆向流动。
请参见图1及图2，具体地，本申请提供的单向阀100包括阀体10、阀盖20和阀芯40，阀体10内具有阀腔11，阀体10内开设有阀口14，阀芯40位于阀腔11内，阀芯40能在阀腔11内做运动以启闭阀口14，阀盖20盖设于阀体10，能够限制阀芯40沿阀体10 轴线方向脱离阀腔11。
阀体10两端还分别设有第一接管12和第二接管13，且第一接管12和第二接管13的直径均小于阀体10的直径，阀盖20为两端开口的中空结构，第一接管12连接于阀体10远离阀盖20的一端，第二接管13连接于阀盖20；另外，阀体10与第一接管12，以及，阀盖20和第二接管13可以一体成型，也可以分体连接。
可选地，阀体10整体呈长筒状，且形成为中空结构，在本实施例中，阀体10选用铸铜材质；当然，在其他实施例中，阀体10也可以采用铸铁等其他材质，在此不作限定。
阀盖20上或者阀体10靠近阀盖20的一端设有止动杆21，阀芯40上设有限位部41，止动杆21能够与限位部41配合，以对于阀芯40进行周向限位。
需要说明的是，通常的单向阀通过阀芯在阀体内移动实现单向阀的启闭功能，阀芯在阀体内部可以自由旋转，在单向阀工作过程中，阀芯会因为内部流经的介质而转动，从而产生噪音。
在本申请中，通过止动杆21与限位部41的配合，从而限制阀芯40的周向运动，以此避免阀芯40旋转与阀体10内壁或阀盖20的撞击而产生噪音。值得注意的是，在本实施例中，由于本申请采用的是依靠阀芯40的自身重力封闭阀口14，防止倒流的重力式单向阀100，因此该单向阀100纵向放置，才能达到单向阀100单向流通的效果。需要解释的是，在本申请中，介质指的是流经单向阀100的流体，在本实施中，介质为制冷剂，在其他实施例中，介质可为压缩空气等。
请参见图3及图4，限位部41为多个，多个限位部41沿着阀芯40的周向均匀分布，止动杆21穿设于任意两个限位部41之间，止动杆21能够与限位部41的侧壁抵接，以限制阀芯40的周向运动。如此设置，使得止动杆21与限位部41的配合，不仅能够限制阀芯40的顺时针旋转，又能够限制阀芯40的逆时针旋转。
可选地，限位部41为三个，沿着阀芯40的周向，任意两个限位部41之间形成放置区414，止动杆21的一端位于其中一个放置区414内，另一端延伸至另一个放置区414内，从而使得止动杆21能够与三个限位部41均能配合限位。可以理解，设置三个限位部41，既能够限位阀芯40的顺时针、逆时针的旋转，又能够减省限位部41的个数，避免限位部41过多而占据阀腔11的空间，影响单向阀100的流通能力，同时，限位部41能够使得阀芯40保持平衡。
请参见图5，在其中一个实施例中，阀盖20上开设有限位槽22，止动杆21设于限位槽22内，阀体10靠近阀盖20的一端的内壁上设有限位台阶15，阀盖20靠近阀体10的端面抵靠于限位台阶15上，由于限位槽22的一侧开口设置，止动杆21的一侧抵接于限 位台阶15，以此固定止动杆21，限位台阶15同时对于阀盖20起到限位作用。
请参见图6，在另外一个实施例中，阀体10靠近阀盖20的一端的内壁上设有限位台阶15，限位台阶15上开设有限位槽22，阀盖20靠近阀体10的端面抵靠于限位台阶15上，由于限位槽22的一侧开口设置，止动杆21设于限位槽22内，并与阀盖20靠近阀体10的一端的端面抵接，以此固定止动杆21，限位台阶15同时对于阀盖20起到限位作用。
请继续参见图1，止动杆21与单向阀100的轴线垂直设置，能够使止动杆21的两头均能与限位部41配合进行限位，而且，在使得止动杆21与每个限位部41均能发生作用的同时，缩短止动杆21的长度，节省空间。
可选地，止动杆21的轴线与阀盖20靠近止动杆21的一端的端面的中心线共线，如此设置，能够延长止动杆21的长度，保证与每个限位部41均能配合，更好地起到限位作用。
止动杆21的截面可呈圆形、方形或三角形。
请参见图4，限位部41包括翼板411及尾翼412，尾翼412设于翼板411上，尾翼412相对阀芯40靠近阀盖20的端面凸出设置，以使尾翼412能够与止动杆21的侧壁配合，尾翼412与翼板411之间设有第二台阶413，尾翼412的一端能够与阀盖20的内壁抵接，以对以阀芯40进行轴向限位。第二台阶413的设置使得尾翼412的外侧面相对翼板411缩进，减小尾翼412的外切圆的直径，使得尾翼412能够伸入阀盖20内，以使止动杆21能够与尾翼412的侧壁配合，实现对于阀芯40的限位作用。
限位部41的一侧往阀体10内壁的方向凸出设置，相邻两个限位部41之间形成流道，以供介质流动。
阀芯40远离止动杆21一端具有密封面42，密封面42能够与阀体10的内壁配合，以密封阀口14。
密封面42为锥面，能够与阀口14形成锥面密封，加强密封性。
在安装的过程中，先将阀芯40放置于阀体10内，再将止动杆21放入阀盖20或阀体10内的限位槽22内，再将阀盖20盖设于阀体10上，以使止动杆21抵接于阀盖20或限位台阶15。
本申请还提供了一种空调机(图未示)，包括上述单向阀100。
在工作过程中，当介质从第一接管12中进入阀口14中，介质的压力会将阀芯40朝向与阀口14脱离的方向顶开，此时阀口14开启，在介质朝向第二接管13的方向流通的过程中，阀芯40会同时进行朝向靠近第二接管13的方向运动并绕阀体10轴线旋转运动，运动过程中与阀体10内壁碰撞而产生噪音，当阀芯40运动至靠近阀盖20时，止动杆21 与限位部41的侧壁抵接，尾翼412与阀盖20的内壁抵接，阀芯40停止运动，噪音也随即停止；另一方面，当有介质从第二接管13流向第一接管12时，阀芯40在介质的推动下朝向阀口14运动至封闭阀口14，从而阻止了介质流入第一接管12中，避免了介质倒流，实现了单向阀100单向流通的效果。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种单向阀，包括阀体、阀盖和阀芯，所述阀体内具有阀腔及阀口，所述阀芯位于所述阀腔内，并能在所述阀腔内运动以启闭所述阀口，所述阀盖盖设于所述阀体，能够限制所述阀芯沿所述阀体轴线方向脱离所述阀腔；
    其特征在于，所述阀盖或者所述阀体靠近所述阀盖的一端上设有止动杆，所述阀芯上设有限位部，所述限位部能够与所述止动杆配合，以对所述阀芯进行周向限位。
  2. 根据权利要求1所述的单向阀，其特征在于，所述限位部为多个，多个所述限位部沿所述阀芯的周向布置，所述止动杆穿设于任意两个所述限位部之间，且能够与所述限位部的侧壁抵接。
  3. 根据权利要求1所述的单向阀，其特征在于，所述限位部为三个，沿着所述阀芯的周向，任意两个所述限位部之间形成放置区，所述止动杆的一端位于其中一个所述放置区内，另一端延伸至另一个所述放置区内。
  4. 根据权利要求1所述的单向阀，其特征在于，所述止动杆与所述单向阀的轴向垂直设置。
  5. 根据权利要求1所述的单向阀，其特征在于，所述止动杆的轴线与所述阀盖靠近所述止动杆的一端的端面的中心线共线。
  6. 根据权利要求1所述的单向阀，其特征在于，所述阀盖上开设有限位槽，所述阀体靠近所述阀盖的一端的内壁设有限位台阶，所述止动杆设于所述限位槽内并抵接于所述限位台阶。
  7. 根据权利要求1所述的单向阀，其特征在于，所述阀体靠近所述阀盖的一端的内壁设有限位台阶，所述限位台阶上开设有限位槽，所述止动杆设于所述限位槽内并与所述阀盖靠近所述阀体的端面抵接。
  8. 根据权利要求1所述的单向阀，其特征在于，所述限位部包括翼板及尾翼，所述尾翼设于所述翼板上，所述尾翼相对所述阀芯靠近所述阀盖的一端凸出设置，以使所述止动杆能够与所述尾翼的侧壁配合。
  9. 根据权利要求1所述的单向阀，其特征在于，所述限位部的一侧朝向靠近所述阀体内壁的方向延伸并凸出所述阀芯的侧面设置，相邻两个所述限位部之间形成流道。
  10. 根据权利要求1所述的单向阀，其特征在于，所述止动杆的截面呈圆形、方形或三角形。
  11. 一种空调机，其特征在于，包括如权利要求1～10任意一项所述的单向阀。
PCT/CN2022/070641 2021-01-08 2022-01-07 单向阀及具有其的空调机 WO2022148417A1 (zh)

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