WO2023093665A1 - 一种截止阀 - Google Patents

一种截止阀 Download PDF

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Publication number
WO2023093665A1
WO2023093665A1 PCT/CN2022/133181 CN2022133181W WO2023093665A1 WO 2023093665 A1 WO2023093665 A1 WO 2023093665A1 CN 2022133181 W CN2022133181 W CN 2022133181W WO 2023093665 A1 WO2023093665 A1 WO 2023093665A1
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Prior art keywords
valve
valve body
valve core
core
sealing
Prior art date
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PCT/CN2022/133181
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English (en)
French (fr)
Inventor
何善军
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Zhejiang Dunan Artificial Environment Co Ltd
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Zhejiang Dunan Artificial Environment Co Ltd
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Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to JP2024519061A priority Critical patent/JP2024537037A/ja
Priority to EP22897748.4A priority patent/EP4421359A4/en
Priority to KR1020247014834A priority patent/KR20240065195A/ko
Publication of WO2023093665A1 publication Critical patent/WO2023093665A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves

Definitions

  • the present application relates to the technical field related to refrigerant flow control, in particular to a cut-off valve.
  • the shut-off valve is mainly used to connect the indoor unit and the outdoor unit.
  • the shut-off valve is installed on the outdoor unit to block the refrigerant in the outdoor unit.
  • one end of the connecting pipeline on the indoor unit can be installed on the shut-off valve, so that the refrigerant can circulate between the indoor unit and the outdoor unit.
  • the spool and the valve body of the existing stop valve are usually made of the same material (such as brass), so the hardness between the spool and the valve body is equal.
  • the shut-off valve is installed on the outdoor unit, and uses the pressure seal between the valve core and the valve body to seal the refrigerant on the outdoor unit. Because the hardness between the valve core and the valve body is equal, the sealing effect between the valve core and the valve body is poor when they are in contact with the valve body. Requirements.
  • a shut-off valve for solving the above technical problems is provided, and the sealing effect between the valve core and the valve body in the shut-off valve is good.
  • a cut-off valve comprising a valve body and a valve core, the valve core is installed in the valve body; a hardness difference is formed between the valve body and the valve core, and the valve core is inserted into the valve body One end of the valve body can be pressed against the valve body to deform the valve core or the valve body.
  • the stop valve can utilize the hardness difference between the valve core and the valve body, so that when the valve core is pressed against the valve body, the valve core or the valve body will be deformed, so as to This ensures the sealing effect of the pressing contact surface between the valve core and the valve body, thereby ensuring the sealing effectiveness of the shut-off valve and preventing refrigerant leakage when the shut-off valve is installed on the outdoor unit.
  • the valve core is provided with a pressure-resistant sealing surface
  • the valve body is provided with a sealing step matching the pressure-resistant sealing surface
  • the valve core can drive the pressure-resistant sealing surface. The surface is pressed against the sealing step of the valve body, so that the valve core and the valve body are assembled and sealed.
  • the compression fit between the valve core and the valve body is realized, which has a simplified structure and facilitates the compression fit between the valve core and the valve body.
  • the pressing sealing surface is configured as a conical surface, and the pressing sealing surface can be pressed against the edge of the sealing step.
  • the pressing sealing surface is set as a conical surface structure, and the pressing sealing surface is used to press against the edge of the sealing step on the valve body, so that the pressing sealing surface on the valve core and the sealing step on the valve body are aligned. Deformation occurs during press fit, thereby ensuring the tightness of assembly between the valve core and the valve body.
  • the hardness difference between the valve body and the valve core is set at 50hv-200hv.
  • the hardness difference between the valve body and the valve core is set to 50hv-200hv, so that when the valve core and the valve body are press-fitted, the valve core or the valve body will be deformed to further meet the requirements of the valve core and valve body. Sealing during body assembly.
  • the Vickers hardness of the valve body is greater than the Vickers hardness of the valve core, and the valve body can press against the valve core to deform the valve core.
  • valve body is made of stainless steel; and, the valve core is made of brass or aluminum.
  • the material composition of the valve body and the valve core on the stop valve is realized, and on the basis of satisfying the hardness difference between the valve body and the valve core, the valve body and the valve core can be Local materials are used to facilitate the production and preparation of the valve body and valve core and reduce production costs.
  • the valve body is formed by processing a stainless steel pipe or a stainless steel rod.
  • the valve body is made of brass; and, the valve core is made of aluminum.
  • valve body and the valve core on the basis of satisfying the hardness difference between the valve body and the valve core, the valve body and the valve core can be obtained locally, which is convenient
  • the production and preparation of valve body and valve core can reduce the production cost.
  • the Vickers hardness of the valve body is smaller than the Vickers hardness of the valve core, and the valve core can press against the valve body to deform the valve body.
  • valve body through the above-mentioned structural arrangement, the hardness difference between the valve body and the valve core is specifically realized, so that when the valve core is pressed against the valve body, the valve body is deformed.
  • the stop valve further includes a sealing valve cover, and the sealing valve cover is installed on the valve body; and, a sealing ring is embedded between the valve core and the valve body , and the sealing ring and the sealing bonnet can assemble and seal the valve core and the valve body.
  • shut-off valve when used to connect the outdoor unit and the indoor unit, that is, when the valve core releases the pressure fit between it and the valve body, it can be realized by sealing the valve cover and the sealing ring.
  • the seal between the valve core and the valve body is used to ensure the sealing effect of the shut-off valve on the refrigerant passing through it.
  • Fig. 1 is a schematic structural diagram of a shut-off valve provided by an embodiment of the present application.
  • Fig. 2 is an enlarged view of part P in Fig. 1 .
  • 100 globe valve; 10, valve body; 11, sealing step; 111, edge; 20, spool; 21, resisting pressure sealing surface; 30, sealing bonnet;
  • an element when an element is referred to as being “disposed on” another element, it may be directly disposed on the other element or there may be an intervening element. When an element is referred to as being “disposed on” another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being “affixed to” another element, it can be directly affixed to the other element or intervening elements may also be present.
  • a shut-off valve 100 provided by an embodiment of the present application includes a valve body 10 and a valve core 20 .
  • valve core 20 is installed in the valve body 10, specifically installed in the valve body 10 in a threaded manner, so as to realize the assembly connection between the valve core 20 and the valve body 10, so that the valve core 20 can be installed in the valve body. body 10.
  • valve body 10 and the valve core 20 there is a difference in hardness between the valve body 10 and the valve core 20 in this embodiment, that is, the valve body 10 and the valve core 20 have different Vickers hardnesses, which can be made of two different materials. become.
  • one end of the valve core 20 inserted into the valve body 10 can press against the valve body 10 to deform the valve core 20 or the valve body 10 .
  • the valve core 20 or the valve body 10 described above is deformed, specifically, after the valve core 20 is deformed, the valve body 10 can be embedded into the valve core 20 .
  • valve core 20 or the valve body 10 described above is deformed, specifically, the valve core 20 can be embedded into the valve body 10 after the valve body 10 is deformed.
  • shut-off valve 100 of the present application can take advantage of the difference in hardness between the valve core 20 and the valve body 10, and when the valve core 20 is assembled into the valve body 10 and pressed against the valve body 10, the valve core 20 or The valve body 10 will be deformed to ensure the sealing effect of the pressure contact surface between the valve core 20 and the valve body 10, thereby ensuring the sealing effectiveness of the stop valve 100 and preventing the stop valve 100 from being installed in the outdoor unit. (Not shown in the figure) Leakage of refrigerant occurs when it is on.
  • valve core 20 of this embodiment is provided with a pressure sealing surface 21, and the valve body 10 is provided with a sealing step 11 matching the pressure sealing surface 21, and the valve core 20 can drive the pressure sealing surface 21 to press against
  • the valve core 20 and the valve body 10 are assembled and sealed. In this way, the pressing fit between the valve core 20 and the valve body 10 is realized, and the structure is simplified, which facilitates the pressing fit between the valve core 20 and the valve body 10 .
  • the pressing sealing surface 21 of this embodiment is configured as a conical surface structure, and the pressing sealing surface 21 can be pressed against the edge 211 of the sealing step 11, so that the valve core 20 is pressed against the sealing surface. 21 and the sealing step 11 on the valve body 10 are deformed during press fit, thereby ensuring the tightness of assembly between the valve core 20 and the valve body 10 .
  • the hardness difference between the valve body 10 and the valve core 20 in this embodiment is 50hv-200hv.
  • the valve core 20 or the valve body 10 is deformed, further satisfying the sealing performance of the valve core 20 and the valve body 10 when assembled.
  • the Vickers hardness of the valve body 10 is greater than that of the valve core 20 , and the valve body 10 can press against the valve core 20 and deform the valve core 20 .
  • the hardness difference between the valve body 10 and the valve core 20 is specifically realized, so that when the valve core 20 is pressed against the valve body 10 , the valve core 20 will be deformed.
  • the valve body 10 of this embodiment is set as a stainless steel part; and, the valve core 20 is set as a brass or aluminum part, that is, the valve body 10 of this embodiment is made of stainless steel. , correspondingly, the valve core 20 is made of brass material or aluminum material. In this way, the material composition of the valve body 10 and the valve core 20 on the cut-off valve 100 is specifically realized. On the basis of satisfying the hardness difference between the valve body 10 and the valve core 20, the valve body 10 and the valve core 20 can be in situ The materials are used to facilitate the production and preparation of the valve body 10 and the valve core 20 and reduce production costs.
  • valve body 10 of this embodiment is specifically processed and formed by stainless steel tubes or stainless steel rods, so as to realize the material composition of the valve body 10 , which further facilitates the production and preparation of the valve body 10 .
  • valve body 10 of this embodiment is set as a brass piece; and, the valve core 20 is set as an aluminum piece, that is, the valve body 10 of this embodiment is made of brass material, correspondingly, The valve core 20 is made of aluminum material.
  • the material composition of the valve body 10 and the valve core 20 on the cut-off valve 100 is specifically realized.
  • the valve body 10 and the valve core 20 can be in situ The materials are used to facilitate the production and preparation of the valve body 10 and the valve core 20 and reduce production costs.
  • valve body 10 there is a hardness difference between the valve body 10 and the valve core 20, and it is not limited to setting the Vickers hardness of the valve body 10 to be greater than the Vickers hardness of the valve core 20 as described above.
  • the Vickers hardness of the valve body 10 can also be set to be smaller than the Vickers hardness of the valve core 20, and the valve core 20 can press against the valve body 10 to deform the valve body 10, which will not be elaborated here.
  • the shut-off valve 100 of this embodiment also includes a sealing valve cover 30 installed on the valve body 10; and a sealing ring is embedded between the valve core 20 and the valve body 10 40, and the sealing ring 40 and the sealing bonnet 30 can assemble and seal the valve core 20 and the valve body 10. So that when the shut-off valve 100 is used to connect the outdoor unit and the indoor unit (not shown), that is, when the valve core 20 releases the pressure on the valve body 10, the sealing valve cover 30 and the sealing ring 40 can be used to realize the sealing of the valve core. 20 and the valve body 10, so as to ensure the sealing effect of the shut-off valve 100 on the refrigerant flowing therein.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

一种截止阀（100），包括阀体（10）和阀芯（20），阀芯（20）安装于阀体（10）内；阀体（10）与阀芯（20）之间形成有硬度差，且阀芯（20）插入至阀体（10）内的一端能够抵压阀体（10），以使阀芯（20）或者阀体（10）发生形变。

Description

一种截止阀
相关申请
本申请要求2021年11月23日申请的，申请号为202122893090.X，发明名称为“一种截止阀”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
本申请涉及冷媒流量控制相关技术领域，特别是涉及一种截止阀。
背景技术
在空调系统中，截止阀主要用于连接室内机和室外机。当室内机未与室外机装配连接时，截止阀安装于室外机上，用于封堵室外机内的冷媒。当室内机与室外机连接时，具体可将室内机上连接管路的一端安装于截止阀上，使得冷媒能够在室内机与室外机之间循环流动。
目前，现有的截止阀上的阀芯与阀体通常选择同一材料(比如黄铜)制成，因此阀芯与阀体之间的硬度相等。截止阀安装于室外机上，利用阀芯与阀体之间的抵压密封，来对室外机上冷媒的密封。由于阀芯与阀体之间的硬度相等，使得阀芯与阀体抵接配合时两者的密封效果差，容易造成冷媒的泄漏，满足不了空调安装使用前，对室外机内冷媒封堵的使用要求。
发明内容
根据本申请的各种实施例，提供一种用于解决上述技术问题的截止阀，该截止阀中阀芯与阀体之间的密封效果好。
一种截止阀，包括阀体和阀芯，所述阀芯安装于所述阀体内；所述阀体与所述阀芯之间形成有硬度差，且所述阀芯插入至所述阀体内的一端能够抵压所述阀体，以使所述阀芯或者所述阀体发生形变。
在本申请中，通过上述合理的结构设置，使得该截止阀能够利用阀芯与阀体之间的硬度差，使得阀芯抵压于阀体时，阀芯或者阀体伴随会产生形变，以此确保该阀芯与阀体之间抵压接触面的密封效果，进而确保了该截止阀的密封有效性，防止该截止阀安装于室外机上时发生冷媒的泄漏。
在其中一个实施例中，所述阀芯上设有抵压密封面，所述阀体上设有匹配于所述抵压密封面的密封台阶，且所述阀芯能够带动所述抵压密封面抵压于所述阀体的密封台阶上，以使所述阀芯与所述阀体装配密封。
可以理解的是，通过上述的结构设置，具体实现该阀芯与阀体之间的抵压配合，具有简化结构，便于阀芯与阀体抵压配合的作用。
在其中一个实施例中，所述抵压密封面设置为锥面结构，且所述抵压密封面能够抵压在所述密封台阶的边沿上。
可以理解的是，将抵压密封面设置为锥面结构，并用抵压密封面抵压在阀体上密封台阶的边沿上，以便于该阀芯上抵压密封面与阀体上密封台阶在抵压配合时发生形变，进而确保该阀芯与阀体之间的装配密封性。
在其中一个实施例中，所述阀体与所述阀芯之间的硬度差值设置为50hv-200hv。
可以理解的是，将阀体与阀芯之间的硬度差值设置为50hv-200hv，以便于该阀芯与阀体抵压配合时，阀芯或者阀体发生形变，进一步满足阀芯与阀体装配时的密封性。
在其中一个实施例中，所述阀体的维氏硬度大于所述阀芯的维氏硬度， 且所述阀体能够抵压所述阀芯，以使所述阀芯发生形变。
可以理解的是，通过上述的结构设置，具体实现该阀体与阀芯之间的硬度差，使得阀芯抵压于阀体时，阀芯会发生形变。
在其中一个实施例中，所述阀体设置为不锈钢件；及，所述阀芯设置为黄铜件或者铝制件。
可以理解的是，通过上述的结构设置，具体实现该截止阀上阀体及阀芯的材料构成，在满足阀体与阀芯之间具有硬度差的基础上，使得该阀体及阀芯能够就地取材，具有便于阀体及阀芯生产制备，降低生产成本的作用。
在其中一个实施例中，所述阀体由不锈钢管或者不锈钢棒加工成型。
可以理解的是，通过上述的结构设置，具体实现该阀体的原料构成，具有进一步便于阀体生产制备的作用。
在其中一个实施例中，所述阀体设置为黄铜件；及，所述阀芯设置为铝制件。
可以理解的是，具体实现该截止阀上阀体及阀芯的材料构成，在满足阀体与阀芯之间具有硬度差的基础上，使得该阀体及阀芯能够就地取材，具有便于阀体及阀芯生产制备，降低生产成本的作用。
在其中一个实施例中，所述阀体的维氏硬度小于所述阀芯的维氏硬度，且所述阀芯能够抵压所述阀体，以使所述阀体发生形变。
可以理解的是，通过上述的结构设置，具体实现该阀体与阀芯之间的硬度差，使得阀芯抵压于阀体时，阀体会发生形变。
在其中一个实施例中，所述截止阀还包括密封阀盖，所述密封阀盖安装于所述阀体上；及，所述阀芯与所述阀体之间的位置嵌装有密封圈，且所述密封圈及所述密封阀盖能够对所述阀芯与所述阀体进行装配密封。
可以理解的是，通过上述的结构设置，当该截止阀用于连接室外机与室内机时，亦即阀芯解除其与阀体之间的抵压配合时，可用密封阀盖与密封圈实现对阀芯与阀体之间装配的密封，以此确保该截止阀对其内导通的冷媒的密封效果。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
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为本申请一实施例所提供的截止阀的结构示意图。
图2为图1中P部放大图。
其中，100、截止阀；10、阀体；11、密封台阶；111、边沿；20、阀芯；21、抵压密封面；30、密封阀盖；40、密封圈。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本申请一部分实施方式，而不是全部的实施方式。基于本申请中的实施方式，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方式，都属于本申请保护的范围。
需要说明的是，当元件被称为“设于”另一个元件，它可以直接设在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“设置于”另一个元件，它可以是直接设置在另一个元件上或者可能同时存在居中元件。当一个元件被认为是“固定于”另一个元件，它可以是直接固定在另一个元件上或者可能同时存在居中元件。
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。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方式的目的，不是旨在于限制本申请。本文所使用的术语“和/或”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2，本申请一实施例所提供的截止阀100，包括阀体10和阀芯20。
其中，阀芯20安装于阀体10内，具体以螺纹的方式安装于阀体10内，以此实现该阀芯20与阀体10之间的装配连接，以便于将阀芯20安装于阀体10内。
在一些实施例中，本实施例的阀体10与阀芯20之间形成有硬度差，亦即该阀体10与阀芯20具有不同的维氏硬度，具体可由两种不同的材料制备而成。且阀芯20插入至阀体10内的一端能够抵压阀体10，以使阀芯20或者阀体10发生形变。在一些实施例中，上述所述的阀芯20或者阀体10发生形变，具体指，阀芯20发生形变后，可使阀体10嵌入至阀芯20。
在一些实施例中，上述所述的阀芯20或者阀体10发生形变，具体指，阀体10发生形变后，可使阀芯20嵌入至阀体10。
可以理解，本申请的截止阀100能够利用阀芯20与阀体10之间具有不同的硬度差，再结合阀芯20装配至阀体10内并抵压于阀体10时，阀芯20 或者阀体10伴随会产生形变，以此确保该阀芯20与阀体10之间抵压接触面的密封效果，进而确保了该截止阀100的密封有效性，防止该截止阀100安装于室外机(图未示)上时发生冷媒的泄漏。
具体地，本实施例的阀芯20上设有抵压密封面21，阀体10上设有匹配于抵压密封面21的密封台阶11，且阀芯20能够带动抵压密封面21抵压于阀体10的密封台阶11上，以使阀芯20与阀体10装配密封。以此具体实现该阀芯20与阀体10之间的抵压配合，具有简化结构，便于阀芯20与阀体10抵压配合的作用。
在一些实施例中，本实施例的抵压密封面21设置为锥面结构，且抵压密封面21能够抵压在密封台阶11的边沿211上，以便于该阀芯20上抵压密封面21与阀体10上密封台阶11在抵压配合时发生形变，进而确保该阀芯20与阀体10之间的装配密封性。
其中，本实施例的阀体10与阀芯20之间的硬度差值为50hv-200hv。以便于该阀芯20与阀体10抵压配合时，阀芯20或者阀体10发生形变，进一步满足阀芯20与阀体10装配时的密封性。
具体地，本实施例中阀体10的维氏硬度大于阀芯20的维氏硬度，且阀体10能够抵压阀芯20，与使阀芯20发生形变。以此具体实现该阀体10与阀芯20之间的硬度差，使得阀芯20抵压于阀体10时，阀芯20会发生形变。
在其中一个实施例中，该实施例的阀体10设置为不锈钢件；及，阀芯20设置为黄铜件或者铝制件，亦即，该实施例的阀体10由不锈钢材质制备而成，相应的，阀芯20则由黄铜材料或者铝制材料制备而成。以此具体实现该截止阀100上阀体10及阀芯20的材料构成，在满足阀体10与阀芯20之间具有硬度差的基础上，使得该阀体10及阀芯20能够就地取材，具有便于阀体10 及阀芯20生产制备，降低生产成本的作用。
其中，该实施例的阀体10具体由不锈钢管或者不锈钢棒加工成型，以此具体实现该阀体10的原料构成，具有进一步便于阀体10生产制备的作用。
在其它实施例中，该实施例的阀体10设置为黄铜件；及，阀芯20设置为铝制件，亦即该实施例的阀体10由黄铜材料制备而成，相应地，阀芯20由铝制材料制备而成。以此具体实现该截止阀100上阀体10及阀芯20的材料构成，在满足阀体10与阀芯20之间具有硬度差的基础上，使得该阀体10及阀芯20能够就地取材，具有便于阀体10及阀芯20生产制备，降低生产成本的作用。
当然，可以理解的是，阀体10与阀芯20之间形成有硬度差，不局限于上述将阀体10的维氏硬度设置为大于阀芯20的维氏硬度，对本领域技术人员来说，还可将阀体10的维氏硬度设置为小于阀芯20的维氏硬度，且阀芯20能够抵压阀体10，以使阀体10发生形变，在此就不展开阐述。
另外，需要说明的是，本实施例的截止阀100还包括密封阀盖30，密封阀盖30安装于阀体10上；及，阀芯20与阀体10之间的位置嵌装有密封圈40，且密封圈40及密封阀盖30能够对阀芯20与阀体10进行装配密封。使得当该截止阀100用于连接室外机与室内机(图未示)时，亦即当阀芯20解除对阀体10的抵压时，可用密封阀盖30与密封圈40实现对阀芯20与阀体10之间装配的密封，以此确保该截止阀100对其内导通的冷媒的密封效果。
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 (10)

  1. 一种截止阀，包括阀体和阀芯，所述阀芯安装于所述阀体内；其特征在于，所述阀体与所述阀芯之间形成有硬度差，且所述阀芯插入至所述阀体内的一端能够抵压所述阀体，以使所述阀芯或者所述阀体发生形变。
  2. 根据权利要求1所述的截止阀，其特征在于，所述阀芯上设有抵压密封面，所述阀体上设有匹配于所述抵压密封面的密封台阶，且所述阀芯能够带动所述抵压密封面抵压于所述阀体的密封台阶上，以使所述阀芯与所述阀体装配密封。
  3. 根据权利要求2所述的截止阀，其特征在于，所述抵压密封面设置为锥面结构，且所述抵压密封面能够抵压在所述密封台阶的边沿上。
  4. 根据权利要求1所述的截止阀，其特征在于，所述阀体与所述阀芯之间的硬度差值设置为50hv-200hv。
  5. 根据权利要求1所述的截止阀，其特征在于，所述阀体的维氏硬度大于所述阀芯的维氏硬度，且所述阀体能够抵压所述阀芯，以使所述阀芯发生形变。
  6. 根据权利要求5所述的截止阀，其特征在于，所述阀体设置为不锈钢件，所述阀芯设置为黄铜件或者铝制件。
  7. 根据权利要求6所述的截止阀，其特征在于，所述阀体由不锈钢管或者不锈钢棒加工成型。
  8. 根据权利要求5所述的截止阀，其特征在于，所述阀体设置为黄铜件，所述阀芯设置为铝制件。
  9. 根据权利要求4所述的截止阀，其特征在于，所述阀体的维氏硬度小于所述阀芯的维氏硬度，且所述阀芯能够抵压所述阀体，以使所述阀体发生 形变。
  10. 根据权利要求1所述的截止阀，其特征在于，所述截止阀还包括密封阀盖，所述密封阀盖安装于所述阀体上；及，所述阀芯与所述阀体之间的位置嵌装有密封圈，且所述密封圈及所述密封阀盖能够对所述阀芯与所述阀体进行装配密封。
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