WO2021208545A1 - 单向阀 - Google Patents

单向阀 Download PDF

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Publication number
WO2021208545A1
WO2021208545A1 PCT/CN2021/072375 CN2021072375W WO2021208545A1 WO 2021208545 A1 WO2021208545 A1 WO 2021208545A1 CN 2021072375 W CN2021072375 W CN 2021072375W WO 2021208545 A1 WO2021208545 A1 WO 2021208545A1
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WO
WIPO (PCT)
Prior art keywords
limiting structure
limiting
valve
way valve
core
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/072375
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English (en)
French (fr)
Inventor
宣永斌
赵剑波
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Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
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Publication date
Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Publication of WO2021208545A1 publication Critical patent/WO2021208545A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/50—Preventing rotation of valve members
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems

Definitions

  • the present application relates to the technical field of air conditioner manufacturing, in particular to a one-way valve.
  • a one-way valve In the air conditioner design process, in order to prevent the backlash of the discharged air flow after shutdown from affecting the compressor of the air conditioner, a one-way valve will be installed on the exhaust pipe of the compressor. Since the compressors of traditional air conditioners are mostly vortex type, the exhaust airflow will surge. Under the action of the compressor surge airflow, the valve core of the one-way valve will rotate, and noise will be generated during the rotation.
  • a one-way valve is provided.
  • a one-way valve includes: a valve body, a valve core, a card seat and a limiting structure.
  • the valve body includes a valve cavity.
  • the valve core is movably arranged in the valve cavity.
  • the card seat is arranged in the valve cavity and fixedly connected with the inner wall of the valve body.
  • the limiting structure is provided on the clamping seat and extends toward the valve core to restrict the rotation of the valve core.
  • One end of the one-way valve provided by the present application extends toward the valve core due to the limiting structure. Therefore, when the valve core starts to rotate, it will be blocked by the end of the stop structure extending toward the valve core. At the same time, because the limit structure is fixed on the card seat, and the card seat is arranged in the valve cavity and fixedly connected with the valve body, the limit structure will prevent the valve core from continuing to rotate. This avoids the problem of noise generated by the one-way valve due to the rotation of the spool of the one-way valve.
  • the side surface of the card seat is provided with a limiting groove
  • the valve body is provided with a limiting protrusion facing the card seat
  • the valve body is matched with the limiting groove through the limiting protrusion Fix the card socket. Therefore, the card seat can be firmly fixed in the valve cavity.
  • the limiting protrusion is a continuous annular structure; or the limiting protrusion is a plurality of convex points arranged at intervals.
  • the limiting protrusion is a continuous annular structure, which is simple in structure and easy to process, and enables the valve body to fix the card seat more stably.
  • the limiting protrusions are a plurality of convex points arranged at intervals, which can reduce the amount of processing required to process the limiting protrusions from the valve body, and reduce the complexity of the process.
  • the limiting structure is in the shape of a straight rod.
  • the straight rod-shaped structure is relatively simple, therefore, the structure is simple, making the limiting structure easy to process and shape.
  • the limiting structure is U-shaped. Therefore, the limiting structure is more stable.
  • the limit structure is welded to the holder, or the limit structure is clamped to the holder. Therefore, the position-limiting structure can be stably installed on the holder.
  • the holder is provided with a fixing hole, and at least one end of the limiting structure is welded into the fixing hole. Therefore, the contact area between the limiting structure and the holder can be increased, thereby increasing the strength of welding.
  • the card socket is provided with a card slot, and the end of the limiting structure is clamped in the card slot. Therefore, the assembly of the limiting structure and the card seat becomes simple and convenient.
  • the card slot includes an inlet portion and an engaging portion
  • the inlet portion is provided at one end of the card seat and extends along the axial direction of the card seat, and the inlet portion penetrates The side wall of the card seat.
  • the engaging portion is formed by radially extending an end of the inlet portion away from the valve core toward the inside of the holder.
  • the end portion of the limiting structure is L-shaped, and the end portion of the limiting structure passes through the entrance portion and is clamped in the engaging portion. Therefore, the limiting structure can be firmly stuck in the card slot.
  • the valve core includes a core body and a plurality of brackets arranged on the side surface of the core body, and a plurality of first intervals are arranged. With this arrangement, the valve core can maintain balance when rotating.
  • the interval between the plurality of brackets is defined as a first interval
  • the limiting structure is in the shape of a straight rod
  • the limiting structure is located in one of the first intervals. Therefore, the limit structure restricts the rotation of the valve core by blocking the movement of the bracket.
  • the interval between the plurality of stents is defined as a first interval
  • the limiting structure is U-shaped
  • one end of the limiting structure is located in one of the first intervals, and the other end spans After passing through the core, it is located in another said first interval. Therefore, the limit structure will be stressed at both ends, that is, the overall limit structure will be more stable.
  • Fig. 1 is a cross-sectional view of the overall structure of a one-way valve according to an embodiment of the application.
  • FIG. 2 is a cross-sectional view of the assembly structure of the card seat and the valve body of the one-way valve according to an embodiment of the application.
  • Figure 3 is a cross-sectional view of the overall structure of a one-way valve according to another embodiment of the application.
  • FIG. 4 is a cross-sectional view of the overall structure of a check valve according to another embodiment of the application.
  • Fig. 5 is a cross-sectional view of the overall structure of a one-way valve according to another embodiment of the application.
  • FIG. 6 is a schematic diagram of the assembly structure of the valve core and the limit structure of the one-way valve according to an embodiment of the application.
  • Fig. 7 is a transverse cross-sectional view of the one-way valve shown in Fig. 6 of this application.
  • FIG. 8 is a schematic diagram of the assembly structure of the valve core and the limit structure of the one-way valve according to another embodiment of the application.
  • Fig. 9 is a transverse cross-sectional view of the one-way valve shown in Fig. 8 of this application.
  • 100 means a one-way valve; 1 means a valve body; 11 means a valve cavity; 12 means a limit protrusion; 2 means a valve core; 21 means a bracket; 22 means a core body; 23 means a first interval; 3 means a card seat; 31 means Card slot; 311 indicates the entrance part; 312 indicates the engaging part; 32 indicates the limiting slot; 33 indicates the fixing hole; 4 indicates the limiting structure.
  • FIG. 1 is a cross-sectional view of the overall structure of a one-way valve 100 according to an embodiment of the application.
  • the one-way valve 100 provided in the present application is used in an air conditioner to prevent refrigerant from flowing backward, and can also be used in a hydraulic system to prevent oil flow from flowing backward, or used in a pneumatic system to prevent compressed air from flowing backward.
  • the one-way valve 100 includes a valve body 1, a valve core 2, a clamping seat 3 and a limiting structure 4.
  • the valve body 1 includes a valve cavity 11.
  • the valve core 2 is movably arranged in the valve cavity 11.
  • the clamping seat 3 is arranged in the valve cavity 11 and is fixedly connected with the valve body 1.
  • the limiting structure 4 is provided on the clamping seat 3 and extends toward the valve core 2 to restrict the rotation of the valve core 2.
  • the limiting structure 4 extends toward the valve core 2. Therefore, when the valve core 2 starts to rotate, it will be blocked by the limiting structure 4 extending toward the valve core 2.
  • the limiting structure 4 since the limiting structure 4 is fixed on the clamping seat 3, and the clamping seat 3 is arranged in the valve cavity 11 and fixedly connected with the inner wall of the valve body 1, the limiting structure 4 can prevent the valve core 2 from continuing to rotate. This avoids the problem of the one-way valve 100 generating noise due to the rotation of the valve core 2 of the one-way valve 100 and hitting the inner wall of the valve body 1.
  • FIG. 2 is a cross-sectional view of the assembly structure of the card seat 3 and the valve body 1 of the one-way valve 100 according to an embodiment of the application.
  • a limiting groove 32 is provided on the side of the card seat 3, and the valve body 1 is provided with a limiting protrusion 12 facing the card seat 3.
  • the valve body 1 fixes the card seat 3 through the cooperation of the limiting protrusion 12 and the limiting groove 32.
  • the limiting protrusion 12 is a continuous ring structure.
  • the limiting protrusion 12 is a continuous annular structure, so that the limiting structure 4 and the limiting groove 32 have a larger contact area, so that the valve body 1 can more stably fix the clamping seat 3.
  • the structure of the limiting protrusion 12 is simpler and easier to process.
  • the limiting protrusion 12 may also be a plurality of bumps arranged at intervals. With this arrangement, the structure is also very simple, and the card holder 3 can be fixed well.
  • the limiting structure 4 is in the shape of a straight rod, and the limiting structure 4 is welded to the holder 3.
  • the straight rod-shaped structure is relatively simple, so the straight rod-shaped limiting structure 4 is easy to process and shape.
  • only one end of the limiting structure 4 needs to be welded to the holder 3 to complete the assembly of the limiting structure 4 and the holder 3.
  • the other end of the limiting structure 4 extends toward the valve core 2 to prevent the valve core 2 from rotating.
  • FIG. 3 is a cross-sectional view of the overall structure of the one-way valve 100 according to another embodiment of the application.
  • the limiting structure 4 in FIG. 3 is U-shaped, and the limiting structure 4 is welded to the holder 3.
  • the welding positions of the limiting structure 4 and the holder 3 are the two ends of the limiting structure 4 in the U-shaped opening direction. Therefore, the U-shaped limiting structure 4 and the holder 3 have more welding positions and a larger welding area.
  • the U-shaped limiting structure 4 is a symmetrical structure, the U-shaped limiting structure 4 has stronger stability.
  • the inner side of the limiting structure 4 extends toward the valve core 2 to prevent the valve core 2 from rotating.
  • the holder 3 is provided with a fixing hole 33, and one end of the limiting structure 4 is welded into the fixing hole 33.
  • the holder 3 is provided with two symmetrically arranged fixing holes 33, and the two ends of the limiting structure 4 are welded into the two fixing holes 33 respectively.
  • the end of the limiting structure 4 can be inserted into the fixing hole 33, and the fixing hole 33 plays a role in positioning the limiting structure 4, facilitating the melting of solder for welding.
  • the provision of the fixing hole 33 increases the contact area between the limit structure 4 and the holder 3, that is, increases the welding area, so that the welding strength of the limit structure 4 can be improved.
  • FIG. 4 is a cross-sectional view of the overall structure of the one-way valve 100 according to another embodiment of the application.
  • the card socket 3 in FIG. 4 is provided with a card slot 31, and the limiting structure 4 is clamped in the card slot 31.
  • the limiting structure 4 can be fixed to the card socket 3 by means of clamping. Such arrangement makes the assembly of the limiting structure 4 and the card socket 3 simple and convenient.
  • the card slot 31 includes an entrance portion 311 and an engaging portion 312.
  • the entrance portion 311 is provided at one end of the card holder 3 and extends along the axial direction of the card holder 3, and the inlet portion 311 penetrates the card The side wall of the seat 3.
  • the engaging portion 312 is formed by an end of the inlet portion 311 away from the valve core 2 extending radially toward the inside of the holder 3.
  • the end of the limiting structure 4 is L-shaped, and the end of the limiting structure 4 passes through the entrance portion 311 and is clamped in the engaging portion 312.
  • the limit structure 4 When the limit structure 4 is installed, the L-shaped end of the limit structure 4 is inserted into the engaging portion 312 through the entrance portion 311, and the limit structure 4 can be clamped in the slot 31.
  • the limit structure 4 In the assembly process, the limit structure 4 is first clamped in the slot 31 of the card seat 3, and then the card seat 3 and the limit structure 4 are installed into the valve cavity 11 of the valve body 1. At this time, the valve body 1
  • the inner wall of the valve will seal the inlet portion 311 close to the inner wall of the valve body 1, so that the limiting structure 4 cannot escape from the slot 31.
  • the axis of the inlet portion 311 is perpendicular to the axis of the engaging portion 312 to form an L shape, and the end of the limiting structure 4 is also L-shaped.
  • the axis of the inlet portion 311 is aligned with the axis of the engaging portion 312.
  • the axis of the engaging portion 312 can also be arranged obliquely, that is, the axis of the engaging portion 312 can be arranged obliquely with respect to the axis of the one-way valve 100, and the two segments of the limiting structure 4 can also be arranged non-vertically, and the two segments form an acute or obtuse angle.
  • the limiting structure 4 is linear, and the end of the limiting structure 4 that is clamped to the slot 31 is L-shaped.
  • FIG. 5 is a cross-sectional view of the overall structure of the one-way valve 100 according to another embodiment of the present application.
  • the limiting structure 4 is U-shaped, and both ends of the limiting structure 4, that is, the ends of the U-shaped opening side are both L-shaped.
  • the number of the card slots 31 is two, and the two card slots 31 are symmetrically arranged on the card socket 3.
  • the two ends of the limit structure 4 can be slightly pulled apart, and then the two ends of the limit structure 4 can be clamped into the card slot 31.
  • the elasticity of the limit structure 4 can be used to lock the limit structure 4 Tightly on the card socket 3.
  • the limiting structure 4 has a very simple structure and is also very convenient to assemble.
  • FIG. 6 is a schematic diagram of the assembly structure of the spool 2 and the limiting structure 4 of the one-way valve 100 according to an embodiment of the present application
  • FIG. 7 is the single diagram shown in FIG. A cross-sectional view of the valve 100.
  • the valve core 2 includes a core 22 and a plurality of brackets 21 arranged on the side of the core 22, and the plurality of brackets 21 are arranged on the side of the core 22 at intervals.
  • a plurality of brackets 21 are evenly distributed on the side of the core body 22, so that the valve core 2 can maintain a balance when rotating.
  • the interval between the plurality of brackets 21 is defined as the first interval 23.
  • the limiting structure 4 is in the shape of a straight rod, and the limiting structure 4 is located in one of the first spaces 23. With this arrangement, no matter in which direction the valve core 2 rotates, the limit structure 4 can block the movement of the bracket 21. That is, the limit structure 4 can not only limit the clockwise rotation of the valve core 2, but also limit the counterclockwise rotation of the valve core 2. The hour hand rotates.
  • the bracket 21 can not only cooperate with the limiting structure 4 to limit the circumferential movement of the valve core 2, but also cooperate with the inner wall of the valve body 1 to limit the valve core 2 in the axial direction.
  • FIG. 8 is a schematic diagram of the assembly structure of the valve core 2 and the limiting structure 4 of the one-way valve 100 according to another embodiment of the present application
  • FIG. 9 is shown in FIG. 8
  • a cross-sectional view of the check valve 100 is shown.
  • the interval between the plurality of brackets 21 is defined as the first interval 23,
  • the limiting structure 4 is U-shaped, and one end of the limiting structure 4 is located in one of the first intervals 23, and the other end is located at the other after crossing the core 22. Within the first interval 23.
  • the structure of the limiting structure 4 is more stable, and no matter which direction the valve core 2 rotates, the limiting structure 4 can block the movement of the bracket 21, thereby restricting the rotation of the valve core 2.
  • the different ends of the limit structure 4 block the rotation of the valve core 2, so that the different ends of the limit structure 4 can work alternately to play a blocking role, so that the limit structure 4 has a longer Service life.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

本申请提供的单向阀包括：阀体(1)、阀芯(2)、卡座(3)以及限位结构(4)。阀体(1)包括阀腔(11)；阀芯(2)活动地设置于阀腔(11)内；卡座(3)设于阀腔(11)内且与阀体(1)固定连接；限位结构(4)设于卡座(3)上，且朝向阀芯(2)延伸以限制阀芯(2)转动。

Description

单向阀
相关申请
本申请要求2020年04月13日申请的，申请号为202020531834.6，发明名称为“单向阀”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
本申请涉及空调器制造技术领域，尤其涉及一种单向阀。
背景技术
在空调器设计过程中，为防止停机后排出的气流反冲对空调器的压缩机产生影响，会在压缩机的排气管上设置单向阀。由于传统的空调器的压缩机多为旋涡式，排气气流会有喘动，在压缩机喘动气流的作用下，单向阀的阀芯会发生转动，转动过程中会产生噪声。
发明内容
根据本申请的各种实施例，提供一种单向阀。
一种单向阀包括：阀体、阀芯、卡座以及限位结构。所述阀体包括阀腔。所述阀芯活动地设置于所述阀腔内。所述卡座设于所述阀腔内且与所述阀体的内壁固定连接。所述限位结构设在所述卡座上，且朝向所述阀芯延伸以限制所述阀芯转动。
本申请提供的单向阀，由于限位结构一端朝向阀芯延伸。因此当阀芯开始转动时，就会被限位结构朝向阀芯延伸的一端阻挡。同时由于限位结构固定 在卡座上，且卡座设于阀腔内并与阀体固定连接，因此限位结构将阻止阀芯继续转动。从而避免了由于单向阀的阀芯发生转动导致单向阀产生噪声的问题。
在其中一个实施例中，所述卡座侧面设有限位槽，所述阀体朝向所述卡座设有限位凸起，所述阀体通过所述限位凸起与所述限位槽配合将所述卡座固定住。因而，使卡座能够牢固固定在阀腔内。
在其中一个实施例中，所述限位凸起为连续的环形结构；或所述限位凸起为多个间隔设置的凸点。限位凸起为连续的环形结构，结构简单，易于加工，且使得阀体能够更加稳定地固定卡座。限位凸起为多个间隔设置的凸点，则能够减少阀体加工出限位凸起所需的加工量，降低工艺的复杂程度。
在其中一个实施例中，所述限位结构呈直杆状。直杆状的结构比较简单，因而，结构简单，使得限位结构易于加工成型。
在其中一个实施例中，所述限位结构呈U型。因而，使得限位结构更加稳定。
在其中一个实施例中，所述限位结构焊接于所述卡座上，或所述限位结构卡接于所述卡座上。因而，能够将限位结构稳定地安装于卡座上。
在其中一个实施例中，所述卡座设有固定孔，所述限位结构至少一端焊接于所述固定孔内。因而，能够增加限位结构与卡座的接触面积，从而增大焊接的强度。
在其中一个实施例中，所述卡座设有卡槽，所述限位结构的端部卡接于所述卡槽内。因而，使得限位结构与卡座的装配变得简单方便。
在其中一个实施例中，所述卡槽包括入口部和卡合部，所述入口部设于所述卡座的一端并沿着所述卡座的轴向方向延伸，且所述入口部贯穿所述卡座的侧壁。所述卡合部由所述入口部远离所述阀芯的一端向所述卡座的内部径向 延伸形成。所述限位结构的端部呈L型，所述限位结构的端部穿过所述入口部并卡接于所述卡合部内。因而，限位结构能够牢固卡在卡槽内。
在其中一个实施例中，所述阀芯包括芯体及设于所述芯体侧面的多个支架，多个第一间隔设置。如此设置，阀芯能够在转动时保持平衡。
在其中一个实施例中，多个支架之间的间隔定义为第一间隔，所述限位结构呈直杆状，且所述限位结构位于其中一个所述第一间隔内。因而，限位结构通过阻挡支架的移动来限制阀芯的转动。
在其中一个实施例中，多个支架之间的间隔定义为第一间隔，所述限位结构呈U型，且所述限位结构的一端位于其中一个所述第一间隔内，另一端跨过芯体后位于另一所述第一间隔内。因而，限位结构将会两端受力，即限位结构的整体将更加稳定。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请一实施例的单向阀的整体结构剖视图。
图2为本申请一实施例的单向阀的卡座与阀体的装配结构剖视图。
图3为本申请另一实施例的单向阀的整体结构剖视图。
图4为本申请又一实施例的单向阀的整体结构剖视图。
图5为本申请再一实施例的单向阀的整体结构剖视图。
图6为本申请一实施例的单向阀的阀芯与限位结构的装配结构示意图。
图7为本申请图6所示单向阀的横向剖视图。
图8为本申请另一实施例的单向阀的阀芯与限位结构的装配结构示意图。
图9为本申请图8所示单向阀的横向剖视图。
附图标记的含义为：
100表示单向阀；1表示阀体；11表示阀腔；12表示限位凸起；2表示阀芯；21表示支架；22表示芯体；23表示第一间隔；3表示卡座；31表示卡槽；311表示入口部；312表示卡合部；32表示限位槽；33表示固定孔；4表示限位结构。
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，本申请的说明书和权利要求书及上述附图中的术语“包括”及其变形，意图在于覆盖不排他的包含。当组件被称为“装设于”另一个组件，它可以直接装设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。命名中带有第一，不代表一定有第二。
需要说明的是，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。
请参阅图1，图1为本申请一实施例的单向阀100的整体结构剖视图。本申请提供的单向阀100，该单向阀100应用于空调机中防止制冷剂倒流,还可以用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。
具体地，单向阀100包括阀体1、阀芯2、卡座3以及限位结构4。阀体1包括阀腔11。阀芯2活动地设置于阀腔11内。卡座3设于阀腔11内且与阀体1固定连接。限位结构4设于卡座3上，且朝向阀芯2延伸以限制阀芯2转动。
在本实施例中，如图1所示，由于限位结构4朝向阀芯2延伸。因此当阀芯2开始转动时，就会被朝向阀芯2延伸的限位结构4阻挡。同时由于限位结构4固定在卡座3上，且卡座3设于阀腔11内并与阀体1的内壁固定连接，因此限位结构4能够阻止阀芯2继续转动。从而避免了由于单向阀100的阀芯2发生转动撞击阀体1的内壁而导致单向阀100产生噪声的问题。
在一实施例中，如图2所示，图2为本申请一实施例的单向阀100的卡座3与阀体1的装配结构剖视图。卡座3侧面设有限位槽32，阀体1朝向卡座3设有限位凸起12，阀体1通过限位凸起12与限位槽32配合将卡座3固定住。在实际加工过程中，首先需要在卡座3的侧面加工出限位槽32，然后将卡座3放入阀腔11内，最后通过挤压加工形成限位凸起12并卡住限位槽32。如此设置，使卡座3能够牢固固定在阀腔11内，并且加工简单。
在一实施例中，如图2所示，限位凸起12为连续的环形结构。限位凸起12为连续的环形结构能够使限位结构4与限位槽32之间具有较大的接触面积，从而阀体1能够更加稳定地固定卡座3。并且限位凸起12的结构更加简单且易 于加工。在其他实施例中，限位凸起12也可以为多个间隔设置的凸点。如此设置，同样结构非常简单，且能很好地固定住卡座3。
在一实施例中，如图1所示，限位结构4呈直杆状，且限位结构4焊接于卡座3上。直杆状的结构比较简单，因此呈直杆状的限位结构4易于加工成型。在装配的时候，只需要将限位结构4一端焊接在卡座3上，即可完成限位结构4与卡座3的装配。限位结构4的另一端朝向阀芯2延伸，用以阻止阀芯2的转动。
在一实施例中，如图3所示，图3为本申请另一实施例的单向阀100的整体结构剖视图。图3中的限位结构4呈U型，且限位结构4焊接于卡座3上。限位结构4与卡座3焊接的部位为限位结构4的U型开口方向的两个端部，因此U型的限位结构4与卡座3焊接的部位更多且焊接面积更大。且由于U型的限位结构4为对称结构，因而U型的限位结构4具有更强的稳定性。限位结构4的内侧朝向阀芯2延伸，用以阻止阀芯2的转动。
进一步地，如图1所示，卡座3设有固定孔33，限位结构4的一端焊接于固定孔33内。如图3所示，卡座3设有两个对称设置的固定孔33，限位结构4的两端分别焊接于两个固定孔33内。在焊接前可先将限位结构4的端部插入固定孔33，固定孔33对限位结构4起到定位作用，便于熔入焊料进行焊接。并且，设置固定孔33增大了限位结构4与卡座3的接触面积，也就是增大了焊接面积，从而可提高限位结构4的焊接强度。
在一实施例中，如图4所示，图4为本申请又一实施例的单向阀100的整体结构剖视图。图4中的卡座3设有卡槽31，且限位结构4卡接于卡槽31内。通过在卡座3上设置卡槽31，能够将限位结构4通过卡接的方式固定于卡座3上，如此设置，使得限位结构4与卡座3的装配变得简单方便。
进一步地，如图4所示，卡槽31包括入口部311和卡合部312，入口部311设于卡座3的一端并沿着卡座3的轴向方向延伸，且入口部311贯穿卡座3的侧壁。卡合部312由入口部311远离阀芯2的一端向卡座3的内部径向延伸形成。同时，限位结构4的端部呈L型，限位结构4的端部穿过入口部311并卡接于卡合部312内。安装限位结构4时，将限位结构4呈L型的端部穿过入口部311插入卡合部312中，即可将限位结构4卡在卡槽31内。在装配过程中，先将限位结构4卡在卡座3的卡槽31内，再将卡座3和限位结构4一起装入阀体1的阀腔11内，此时，阀体1的内壁将会把入口部311靠近阀体1内壁的一侧封死，使限位结构4无法脱离卡槽31。
在本实施例中，入口部311的轴线与卡合部312的轴线垂直设置，形成L型，限位结构4的端部也呈L型，在其他实施例中，入口部311的轴线与卡合部312的轴线还可倾斜设置，即，卡合部312的轴线相对单向阀100的轴线倾斜设置，限位结构4的两段还可非垂直设置，两段形成锐角或钝角。
在一实施例中，如图4所示，限位结构4呈直线型，限位结构4卡接于卡槽31的端部呈L型。
在一实施例中，如图5所示，图5为本申请再一实施例的单向阀100的整体结构剖视图。本实施例和图4实施例的区别在于，限位结构4呈U型，限位结构4的两个端部，即，U型开口侧的端部均呈L型。在本实施例中，卡槽31的数量为两个，两个卡槽31对称设于卡座3上。在装配过程中，可稍微拉开限位结构4的两端，再将限位结构4的两个端部卡入卡槽31内，利用限位结构4自身的弹性可使限位结构4卡紧于卡座3上。该限位结构4结构非常简单，装配也很方便。
在一实施例中，如图6和图7所示，图6为本申请一实施例的单向阀100 的阀芯2与限位结构4的装配结构示意图，图7为图6所示单向阀100的横向剖视图。阀芯2包括芯体22及设于芯体22侧面的多个支架21，多个支架21间隔设置于芯体22的侧面。多个支架21均匀分布在芯体22的侧面，使阀芯2能够在转动时保持平衡。
在一实施例中，如图6和图7所示，多个支架21之间的间隔定义为第一间隔23。限位结构4呈直杆状，且限位结构4位于其中一个第一间隔23内。如此设置，无论阀芯2朝哪个方向转动，限位结构4均能够阻挡支架21的移动，即，限位结构4不仅能够限制阀芯2的顺时针的旋转，又能够限制阀芯2的逆时针旋转。支架21不仅能够与限位结构4配合以限制阀芯2的周向运动，还能够与阀体1的内壁配合，以对阀芯2进行轴向限位。
在另一实施例中，如图8和图9所示，图8为本申请另一实施例的单向阀100的阀芯2与限位结构4的装配结构示意图，图9为图8所示单向阀100的横向剖视图。多个支架21之间的间隔定义为第一间隔23，限位结构4呈U型，且限位结构4的一端位于其中一个第一间隔23内，另一端跨过芯体22后位于另一第一间隔23内。如此设置，限位结构4的结构更加稳固，且无论阀芯2朝哪个方向转动，限位结构4均能够阻挡支架21的移动，从而限制阀芯2的转动。阀芯2往不同方向转动时，限位结构4的不同端部阻挡阀芯2转动，从而限位结构4的不同端部可轮换工作起到阻挡作用，从而使得限位结构4具有更长的使用寿命。
以上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。
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明 本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围内，对以上实施方式所作的适当改变和变化都落在本申请要求保护的范围内。

Claims (12)

  1. 一种单向阀，其特征在于，包括：
    阀体，所述阀体包括阀腔；
    阀芯，所述阀芯活动地设置于所述阀腔内；
    卡座，所述卡座设于所述阀腔内且与所述阀体固定连接；以及
    限位结构，所述限位结构设在所述卡座上，且朝向所述阀芯延伸以限制所述阀芯转动。
  2. 根据权利要求1所述的单向阀，其特征在于，所述卡座侧面设有限位槽，所述阀体朝向所述卡座设有限位凸起，所述阀体通过所述限位凸起与所述限位槽配合将所述卡座固定住。
  3. 根据权利要求2所述的单向阀，其特征在于，所述限位凸起为连续的环形结构；或所述限位凸起为多个间隔设置的凸点。
  4. 根据权利要求1所述的单向阀，其特征在于，所述限位结构呈直杆状。
  5. 根据权利要求1所述的单向阀，其特征在于，所述限位结构呈U型。
  6. 根据权利要求1所述的单向阀，其特征在于，所述限位结构焊接于所述卡座上，或所述限位结构卡接于所述卡座上。
  7. 根据权利要求1所述的单向阀，其特征在于，所述卡座设有固定孔，所述限位结构至少一端焊接于所述固定孔内。
  8. 根据权利要求1所述的单向阀，其特征在于，所述卡座设有卡槽，所述限位结构的端部卡接于所述卡槽内。
  9. 根据权利要求8所述的单向阀，其特征在于，所述卡槽包括入口部和卡合部，所述入口部设于所述卡座的一端并沿着所述卡座的轴向方向延伸，且所述入口部贯穿所述卡座的侧壁，所述卡合部由所述入口部远离所述阀芯的一端 向所述卡座的内部径向延伸形成；所述限位结构的端部呈L型，所述限位结构的端部穿过所述入口部并卡接于所述卡合部内。
  10. 根据权利要求1所述的单向阀，其特征在于，所述阀芯包括芯体及设于所述芯体侧面的多个支架，多个所述支架间隔设置。
  11. 根据权利要求10所述的单向阀，其特征在于，多个所述支架之间的间隔定义为第一间隔，所述限位结构呈直杆状，且所述限位结构位于其中一个所述第一间隔内。
  12. 根据权利要求10所述的单向阀，其特征在于，多个所述支架之间的间隔定义为第一间隔，所述限位结构呈U型，且所述限位结构的一端位于其中一个所述第一间隔内，另一端跨过所述芯体后位于另一所述第一间隔内。
PCT/CN2021/072375 2020-04-13 2021-01-18 单向阀 Ceased WO2021208545A1 (zh)

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CN204512548U (zh) * 2015-04-03 2015-07-29 新昌县富士精工科技有限公司 一种大口径消音单向阀
CN105605251A (zh) * 2016-03-03 2016-05-25 新昌县富士精工科技有限公司 一种消音单向阀及单向阀限位件的制造方法

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CN1888496A (zh) * 2006-07-13 2007-01-03 浙江盾安精工集团有限公司 空调器用单向阀
KR20120133206A (ko) * 2011-05-31 2012-12-10 한라공조주식회사 압축기
CN204512548U (zh) * 2015-04-03 2015-07-29 新昌县富士精工科技有限公司 一种大口径消音单向阀
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