WO2023284744A1 - 单向阀及阀岛 - Google Patents

单向阀及阀岛 Download PDF

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Publication number
WO2023284744A1
WO2023284744A1 PCT/CN2022/105217 CN2022105217W WO2023284744A1 WO 2023284744 A1 WO2023284744 A1 WO 2023284744A1 CN 2022105217 W CN2022105217 W CN 2022105217W WO 2023284744 A1 WO2023284744 A1 WO 2023284744A1
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WO
WIPO (PCT)
Prior art keywords
valve
flow
way valve
valve body
piston
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PCT/CN2022/105217
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English (en)
French (fr)
Inventor
冯忠波
金钜
王傅钢
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 EP22841379.5A priority Critical patent/EP4372256A1/en
Publication of WO2023284744A1 publication Critical patent/WO2023284744A1/zh

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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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid 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
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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

Definitions

  • the present application relates to the technical field of one-way valves, in particular, to a one-way valve and a valve island.
  • valve islands need to drill multiple holes when processing the flow channel, and the openings of some holes need to be blocked during use. Therefore, the one-way valve used in some valve islands not only realizes the one-way conduction function, but also takes into account the function of blocking the opening.
  • an integral valve body is usually used to take into account the function of blocking the opening.
  • multiple parts need to be installed in the flow cavity of the valve body, which can only be assembled at the flow port of the valve body.
  • the end of the piston shaft is clamped with a snap ring, which is very inconvenient to assemble.
  • the present application provides a one-way valve and a valve island, so as to facilitate the assembly of the one-way valve with a blocking function.
  • a one-way valve including: a blocking part, the blocking part has a flow cavity and a flow port communicating with the flow cavity; the valve body is connected to the blocking part, The valve body has a flow hole and a valve port connected to the flow hole, and the flow hole is connected to the flow cavity; the piston part, the piston part includes a piston head, a piston shaft and a limit cap connected in sequence, and the piston shaft passes through the valve body.
  • the piston head is located on the side of the valve body away from the flow chamber, and the limit cap is located in the flow chamber.
  • the piston head is movably arranged to block or open the valve port; the elastic member is arranged in the flow chamber, and one end of the elastic member and the valve body Abutting, the other end of the elastic member abuts against the limit cap.
  • piston head and the piston shaft are integrally structured, and the limit cap is fixedly connected to the piston shaft; or, the limit cap and the piston shaft are integrally structured, and the piston head is fixedly connected to the piston shaft.
  • sealing part and the valve body are riveted, clamped or welded.
  • the blocking part is riveted with the valve body, the outer wall of the valve body has an annular groove, the blocking part includes a main body and a riveting ring arranged on the main body, the main body has a flow cavity and a flow port, and the wall thickness of the riveting ring is smaller than that of the main body The ends of the thick, riveted ring are riveted into the annular groove.
  • the blocking portion further includes a boss, which is arranged on a side of the main body away from the valve body; there are multiple flow ports, and the plurality of flow ports are arranged at intervals in the circumferential direction of the main body.
  • the blocking part and the valve body are clamped; wherein, the blocking part has a slot, and the valve body has a buckle, and the buckle is snapped into the slot; or, the blocking part has a buckle, and the valve body has a slot, The buckle is snapped into the card slot.
  • valve body includes: a cylinder, the flow hole is located in the cylinder; a guide sleeve is arranged in the flow hole, the guide sleeve has a guide hole, and the piston shaft can move through the guide hole; a plurality of beams, each The two ends of the support beam are respectively connected with the guide sleeve and the cylinder body.
  • the piston head has a first sealing groove
  • the piston part also includes a first sealing ring
  • the first sealing ring is arranged in the first sealing groove
  • the outer wall of the valve body has a second sealing groove
  • the one-way valve also includes a second sealing ring.
  • the second sealing ring is arranged in the second sealing groove
  • the outer wall of the blocking part has a third sealing groove
  • the one-way valve also includes a third sealing ring
  • the third sealing ring is arranged in the third sealing groove.
  • a valve island includes a valve seat and the above-mentioned one-way valve, the valve seat has a receiving cavity and an input flow channel, an output flow channel arranged at intervals, an input flow channel and a receiving cavity communication, the one-way valve is arranged in the accommodation chamber, the accommodation chamber communicates with the flow port of the one-way valve, and the valve port of the one-way valve communicates with the output channel in an on-off manner.
  • the input flow channel and the output flow channel are arranged in parallel, the accommodation chamber has an opening, and the inner wall of the opening has a limit groove, the one-way valve can be taken out from the opening or put into the accommodation chamber, and the valve island also includes a stop ring, which can be taken out snap into the limit groove, and the stop ring cooperates with the stopper of the blocking part of the one-way valve.
  • a one-way valve includes a blocking part, a valve body, a piston part and an elastic member.
  • the blocking part has a flow cavity and a flow port communicating with the flow cavity;
  • the valve body and The plugging part is connected, the valve body has a flow hole and a valve port connected to the flow hole, and the flow hole is connected to the flow chamber;
  • the piston part includes a piston head, a piston shaft and a limit cap connected in sequence, and the piston shaft passes through the valve.
  • the piston head is located outside the valve body, the limit cap is located in the flow chamber, the piston head is movably set to block or open the valve port; the elastic member is arranged in the flow chamber, one end of the elastic member and the valve body Abutting, the other end of the elastic member abuts against the limit cap.
  • the part used to seal the redundant opening of the valve island is set as a separate sealing part and valve body, which are processed separately. In this way, parts such as the piston part can be installed on the valve body first, and then the valve body and sealing The blocking parts are connected together, avoiding the assembly operation in the narrow flow opening, thus facilitating the assembly of the one-way valve with blocking function.
  • FIG. 1 shows a schematic structural view of a one-way valve provided by an embodiment of the present application
  • Fig. 2 shows a schematic structural view of the blocking part in the one-way valve in Fig. 1;
  • Fig. 3 shows a cross-sectional view of the blocking part in Fig. 2;
  • Fig. 4 shows the schematic diagram of the assembly structure of the valve body and the piston part in Fig. 1;
  • Fig. 5 shows a schematic structural diagram of a valve island provided by another embodiment of the present application.
  • Fig. 6 shows a cross-sectional view of the valve island in Fig. 5 at position A-A.
  • the embodiment of the present application provides a one-way valve, including: a blocking part 10, the blocking part 10 has a flow cavity 11 and a flow port 12 communicating with the flow cavity 11; the valve body 20, connected with the blocking part 10, the valve body 20 has a flow hole 21 and a valve port 22 communicating with the flow hole 21, the flow hole 21 communicates with the flow chamber 11; the piston part 30, the piston part 30 includes sequentially connected The piston head 31, the piston shaft 32 and the limit cap 33, the piston shaft 32 passes through the valve body 20, the piston head 31 is located on the side of the valve body 20 away from the flow cavity 11, the limit cap 33 is located in the flow cavity 11, the piston head 31 It is movably arranged to block or open the valve port 22 ; the elastic member 40 is disposed in the flow cavity 11 , one end of the elastic member 40 abuts against the valve body 20 , and the other end of the elastic member 40 abuts against the limit cap 33 .
  • the blocking part 10 has a flow cavity 11 for fluid flow and a flow port 12 communicating with the flow cavity 11.
  • the flow hole 21 on the valve body 20 communicates with the flow cavity 11.
  • the valve body 20 also includes The valve port 22 communicating with the flow hole 21 communicates with the flow chamber 11 and the valve port 22 through the flow hole 21 to form a passage.
  • the piston shaft 32 of the piston part 30 is set through the valve body 20 and penetrates in the flow hole 21.
  • the piston head 31 is located on the side of the valve body 20 away from the flow chamber 11, so that the valve port 22 is realized through the piston head 31.
  • the elastic member 40 is set in the flow chamber 11, one end is in contact with the valve body 20, and the other end is in contact with the limit cap 33. Through the action of the elastic member 40 and the fluid, the piston head 31 is moved to block Or open the valve port 22 so that the inside of the one-way valve communicates with or disconnects from the external flow channel through the valve port 22 .
  • the part used to block the redundant opening of the valve island is set as a separate plugging part 10 and valve body 20, which are processed separately, so that parts such as the piston part 30 can be installed on the valve body 20 first, and then the The valve body 20 and the blocking part 10 are connected together, avoiding the assembly operation in the narrow flow opening 12, thus facilitating the assembly of the one-way valve with blocking function.
  • At least a portion of the piston head 31 is located outside the valve body 20 .
  • Such setting can prevent the part of the piston head 31 used to block the valve port 22 from being over-pressed, resulting in a decrease in sealing ability, improves the strength of this part, and ensures the sealing ability of the piston head 31 .
  • the size of the limit cap 33 is larger than the size of the piston shaft 32, so that the elastic member 40 abuts against the limit cap 33, and realizes the end of the piston part 30 close to the limit cap 33. Limit, and then control the movement of the entire piston part 30 through the limit cap 33 connected with the piston shaft 32 .
  • the orientation of the valve port 22 is perpendicular to the orientation of the flow port 12, and the fluid enters the flow port 12 and flows vertically into the valve port 22 to form a passage, which can meet the fluid switching requirements under some working conditions.
  • the piston head 31 and the piston shaft 32 are integrally structured, and the limit cap 33 is fixedly connected to the piston shaft 32 .
  • the limit cap 33 and the piston shaft 32 are integrated, and the piston head 31 and the piston shaft 32 are fixedly connected.
  • the piston head 31 and the piston shaft 32 are made into an integral structure, which is easy to process and convenient to use.
  • the limit cap 33 is fixedly connected with the piston shaft 32, so that the piston head 31, the piston shaft 32 and the limit cap 33 are connected as a whole. In this way, the limit cap 33 is reliably connected with the piston shaft 32 and has high strength, and is less likely to fall off or be deformed compared with the method using a snap spring.
  • the blocking portion 10 and the valve body 20 are riveted, clamped or welded.
  • the valve body 20 and the blocking portion 10 are connected and put into the valve island as a whole, which makes assembly or disassembly more convenient, and the overall structure of the one-way valve is also more stable and reliable.
  • the plugging part 10 and the valve body 20 are riveted, the outer wall of the valve body 20 has an annular groove 23, the plugging part 10 includes a main body 13 and a riveting ring 14 arranged on the main body 13, the main body 13 has a flow chamber 11 and the circulation port 12, the wall thickness of the riveting ring 14 is smaller than that of the main body 13, and the end of the riveting ring 14 is snapped into the annular groove 23 by riveting.
  • the end of the riveting ring 14 is snapped into the annular groove 23 by riveting.
  • the end of the riveting ring 14 is moved to the position of the annular groove 23, and then the end of the riveting ring 14 is shrunk radially by using a tool to resist
  • the inner wall of the annular groove 23 is closed to realize riveting, so that the valve body 20 and the blocking part 10 are connected as a whole.
  • the flow cavity 11 and the flow port 12 are arranged on the main body 13 of the blocking part 10 to communicate with the flow channel and the flow cavity 11 to ensure the smooth flow of the fluid.
  • the end surface of the main body 13 abuts against the end surface of the valve body 20 , so that the valve body 20 and the blocking portion 10 where the main body 13 is located can be further limited in the axial direction, thereby improving structural stability.
  • the blocking part 10 also includes a boss 15, and the boss 15 is arranged on the side of the main body 13 away from the valve body 20; The circumferential interval setting of .
  • the upper end of the blocking part 10 is provided with a boss 15.
  • the boss 15 can be held by hand or the auxiliary parts can be used to cooperate with the boss 15 to operate. into the opening 54 or out of the opening 54.
  • a plurality of flow ports 12 on the main body 13 are arranged at intervals in the circumferential direction to prevent the flow ports 12 from being unable to communicate with the flow channel due to the closed structure and invisible misplacement during placement.
  • the arrangement of multiple flow ports 12 can ensure that the flow ports 12 are connected to the flow channel when the one-way valve is placed at any circumferential rotation angle during the process of setting the one-way valve on the valve island.
  • the valve body 20 includes: a cylinder body 24, the flow hole 21 is located in the cylinder body 24; a guide sleeve 25 is arranged in the flow hole 21, the guide sleeve 25 has a guide hole 26, and the piston shaft 32 is movably passed through A guide hole 26; a plurality of support beams, the two ends of each support beam are respectively connected with the guide sleeve 25 and the cylinder body 24.
  • the valve body 20 includes a cylinder body 24, a guide sleeve 25 and a plurality of support beams.
  • the position of the guide sleeve 25 has a guide hole 26 on the guide sleeve 25 for passing through the piston shaft 32 to guide the piston shaft 32 and prevent the piston portion 30 from tilting due to the inclination of the piston shaft 32 .
  • the piston head 31 has a first sealing groove
  • the piston part 30 also includes a first sealing ring
  • the first sealing ring is arranged in the first sealing groove
  • the outer wall of the valve body 20 has a second sealing groove
  • the one-way valve also includes The second sealing ring, the second sealing ring is arranged in the second sealing groove
  • the outer wall of the blocking part 10 has a third sealing groove
  • the one-way valve also includes a third sealing ring
  • the third sealing ring is arranged in the third sealing groove .
  • the blocking part 10 and the valve body 20 are snapped together; wherein, the blocking part 10 has a slot, and the valve body 20 has a snap slot. buckle, the buckle snaps into the slot; or, the blocking part 10 has a buckle, the valve body 20 has a slot, and the buckle snaps into the slot.
  • the slot is arranged on the blocking part 10, and the buckle is arranged on the valve body 20; or, the slot is arranged on the valve body 20, the buckle is arranged on the blocking part 10, and the valve body 20 and The blocking part 10 is fixed together by the clamping of the clamping groove and the buckle, forming a whole, and improving the reliability of the overall connection.
  • a valve island is provided, the valve island includes a valve seat 50 and the above-mentioned one-way valve, the valve seat 50 has an accommodating cavity 51 and spaced apart
  • the input channel 52, the output channel 53, the input channel 52 communicates with the receiving cavity 51
  • the check valve is arranged in the receiving cavity 51
  • the receiving cavity 51 communicates with the circulation port 12 of the check valve
  • the valve port 22 of the check valve It can be connected with the output channel 53 in an on-off manner.
  • the valve seat 50 is provided with an accommodating cavity 51 , and the one-way valve is disposed in the accommodating cavity 51 .
  • the valve port 22 of the one-way valve can communicate with the output flow channel 53 in an on-off manner, and the flow port 12 communicates with the accommodating cavity 51 to form a flow channel passage.
  • the fluid flows in, it will pass through the input channel 52 , the accommodating cavity 51 , the flow port 12 , the flow cavity 11 , the flow hole 21 , the valve port 22 and the output flow channel 53 in sequence.
  • the one-way valve When the fluid flows in, it first passes through the input flow channel 52. At this time, the one-way valve is in a closed state, and the fluid enters the accommodating chamber 51, and flows into the circulation chamber 11 through a plurality of flow ports 12 on the side of the main body 13. The fluid continues to move downward and enters the chamber 51.
  • the elastic member 40 shrinks, opens the valve port 22, and makes the one-way valve in the avoidance state, and the fluid flows into the output flow channel 53 through the valve port 22, thereby forming a passage; when the fluid pressure When it is reduced, the elastic member 40 in the contracted state is stretched and expanded, and the piston head 31 that is in contact with it is pulled to move upward, and the valve port 22 is closed, so that the one-way valve is in a closed state. After the fluid flows into the input channel 52, the valve port 22 is closed. As a result, the path cannot be formed, and the fluid flow path is blocked.
  • the input flow channel 52 and the output flow channel 53 are arranged in parallel, the accommodating chamber 51 has an opening 54, and the inner wall of the opening 54 has a limiting groove 55, the one-way valve can be taken out from the opening 54 or put into the accommodating chamber 51, and the valve island also
  • the stop ring 60 is included, and the stop ring 60 is detachably snapped into the limiting groove 55 , and the stop ring 60 and the blocking portion 10 of the one-way valve stop and cooperate.
  • the accommodating cavity 51 has an opening 54, which is opened at the upper end of the accommodating cavity 51, and is used for assembling the one-way valve. Such arrangement facilitates flow channel processing and installation and removal of the one-way valve.
  • the valve island also includes a baffle ring 60, which is removably snapped into the limit groove 55 on the inner wall of the opening 54, and cooperates with the stopper of the blocking part 10 to prevent the one-way valve from being damaged by the input channel during the operation of the valve island.
  • the fluid impact of 52 is too big and moves up and down.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Abstract

单向阀以及阀岛。单向阀包括封堵部（10），封堵部（10）具有流通腔（11）及和流通腔（11）连通的流通口（12）；阀体（20）和封堵部（10）连接，阀体（20）具有过流孔（21）及和过流孔（21）连通的阀口（22）；活塞部（30），活塞部（30）包括依次连接的活塞头（31）、活塞轴（32）和限位帽（33），活塞轴（32）穿过阀体（20），限位帽（33）位于流通腔（11）内，活塞头（31）可移动地设置以封堵或打开阀口（22）；弹性件（40）设置在流通腔（11）内，一端和阀体（20）抵接，另一端和限位帽（33）抵接。该单向阀装配方便。

Description

单向阀及阀岛 技术领域
本申请涉及单向阀技术领域，具体而言，涉及一种单向阀及阀岛。
背景技术
一些阀岛在加工流道时需要打多个孔，而一些孔的开口在使用时需要封堵住。因此，一些阀岛中使用的单向阀在实现单向导通功能的同时还兼顾封堵开口的功能。
现有技术中，对于具有封堵功能的单向阀，通常是采用一体式的阀体兼顾封堵开口的功能。但阀体的流通腔内需要安装多个零件，这只能在阀体的流通口处进行装配操作，例如，在活塞轴的端部卡接卡簧，装配非常不方便。
申请内容
本申请提供了一种单向阀及阀岛，以便于具有封堵功能的单向阀的装配。
为了实现上述目的，根据本申请的一个方面，提供了一种单向阀，包括：封堵部，封堵部具有流通腔及和流通腔连通的流通口；阀体，和封堵部连接，阀体具有过流孔及和过流孔连通的阀口，过流孔和流通腔连通；活塞部，活塞部包括依次连接的活塞头、活塞轴和限位帽，活塞轴穿过阀体，活塞头位于阀体远离流通腔的一侧，限位帽位于流通腔内，活塞头可移动地设置以封堵或打开阀口；弹性件，设置在流通腔内，弹性件的一端和阀体抵接，弹性件的另一端和限位帽抵接。
进一步地，活塞头和活塞轴为一体结构，限位帽和活塞轴固定连接；或，限位帽和活塞轴为一体结构，活塞头和活塞轴固定连接。
进一步地，封堵部和阀体铆接、卡接或焊接。
进一步地，封堵部和阀体铆接，阀体的外壁具有环形槽，封堵部包括主体和设置在主体上的铆接环，主体具有流通腔和流通口，铆接环的壁厚小于主体的壁厚，铆接环的端部通过铆接卡入环形槽内。
进一步地，封堵部还包括凸台，凸台设置在主体的背离阀体的一侧；流通口为多个，多个流通口在主体的周向间隔设置。
进一步地，封堵部和阀体卡接；其中，封堵部具有卡槽，阀体具有卡扣，卡扣卡入卡槽内；或，封堵部具有卡扣，阀体具有卡槽，卡扣卡入卡槽内。
进一步地，阀体包括：筒体，过流孔位于筒体内；导套，设置在过流孔内，导套具有导向孔，活塞轴可移动地穿过导向孔；多个支梁，每个支梁的两端分别和导套、筒体连接。
进一步地，活塞头具有第一密封槽，活塞部还包括第一密封圈，第一密封圈设置在第一密封槽内；阀体的外壁具有第二密封槽，单向阀还包括第二密封圈，第二密封圈设置在第二密封槽内；封堵部的外壁具有第三密封槽，单向阀还包括第三密封圈，第三密封圈设置在第三密封槽内。
根据本申请的另一方面，提供了一种阀岛，阀岛包括阀座和上述的单向阀，阀座具有容纳腔和间隔设置的输入流道、输出流道，输入流道和容纳腔连通，单向阀设置在容纳腔内，容纳腔和单向阀的流通口连通，单向阀的阀口可通断地和输出流道连通。
进一步地，输入流道和输出流道平行设置，容纳腔具有开口，开口的内壁具有限位槽，单向阀可从开口取出或装入容纳腔，阀岛还包括挡环，挡环可取出地卡入限位槽内，挡环和单向阀的封堵部止挡配合。
应用本申请的技术方案，提供了一种单向阀，单向阀包括封堵部、阀体、活塞部和弹性件，封堵部具有流通腔及和流通腔连通的流通口；阀体和封堵部连接，阀体具有过流孔及和过流孔连通的阀口，过流孔和流通腔连通；活塞部包括依次连接的活塞头、活塞轴和限位帽，活塞轴穿过阀体，活塞头的至少一部分位于阀体的外部，限位帽位于流通腔内，活塞头可移动地设置以封堵或打开阀口；弹性件设置在流通腔内，弹性件的一端和阀体抵接，弹性件的另一端和限位帽抵接。采用该方案，将用于封堵阀岛多余开口的部分设置为单独的封堵部和阀体，分别加工，这样可先将活塞部等零件安装到阀体上，然后再将阀体和封堵部连接在一起，避免了在狭小的流通口中进行装配操作，因此便于具有封堵功能的单向阀的装配。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了本申请的实施例提供的单向阀的结构示意图；
图2示出了图1中单向阀中封堵部的结构示意图；
图3示出了图2中封堵部的剖视图；
图4示出了图1中阀体和活塞部的装配结构示意图；
图5示出了本申请的另一实施例提供的阀岛的结构示意图；
图6示出了图5中阀岛在A-A位置的剖视图。
其中，上述附图包括以下附图标记：
10、封堵部；11、流通腔；12、流通口；13、主体；14、铆接环；15、凸台；20、阀体；21、过流孔；22、阀口；23、环形槽；24、筒体；25、导套；26、导向孔；30、活塞部；31、 活塞头；32、活塞轴；33、限位帽；40、弹性件；50、阀座；51、容纳腔；52、输入流道；53、输出流道；54、开口；55、限位槽；60、挡环。
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。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作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。
如图1至图4所示，本申请的实施例提供了一种单向阀，包括：封堵部10，封堵部10具有流通腔11及和流通腔11连通的流通口12；阀体20，和封堵部10连接，阀体20具有过流孔21及和过流孔21连通的阀口22，过流孔21和流通腔11连通；活塞部30，活塞部30包括依次连接的活塞头31、活塞轴32和限位帽33，活塞轴32穿过阀体20，活塞头31位于阀体20远离流通腔11的一侧，限位帽33位于流通腔11内，活塞头31可移动地设置以封堵或打开阀口22；弹性件40，设置在流通腔11内，弹性件40的一端和阀体20抵接，弹性件40的另一端和限位帽33抵接。
在本实施例中，封堵部10具有供流体流动的流通腔11和与流通腔11连通的流通口12，阀体20上的过流孔21与流通腔11连通，阀体20上还包括与过流孔21连通的阀口22，通过过流孔21，将流通腔11和阀口22连通，形成通路。活塞部30的活塞轴32穿过阀体20设置，穿设在过流孔21内，活塞头31位于阀体20远离了流通腔11的一侧，从而通过活塞头31来实现对阀口22的密封，弹性件40设置在流通腔11内，一端与阀体20抵接，另一端和限位帽33抵接，通过弹性件40和流体的作用，使得活塞头31移动，用来封堵或打开阀口22，使得单向阀内部通过阀口22与外部流道连通或断开。
采用该方案，将用于封堵阀岛多余开口的部分设置为单独的封堵部10和阀体20，分别加工，这样可先将活塞部30等零件安装到阀体20上，然后再将阀体20和封堵部10连接在一起，避免了在狭小的流通口12中进行装配操作，因此便于具有封堵功能的单向阀的装配。
可选地，活塞头31的至少一部分位于阀体20的外部。这样设置，可以避免活塞头31上用来封堵阀口22的部位受到过分挤压从而导致密封能力下降，提高了该部位的强度，保证了活塞头31的密封能力。
可选地，在活塞轴32的径向上，限位帽33的尺寸大于活塞轴32的尺寸，便于弹性件40对限位帽33进行抵接，实现对活塞部30靠近限位帽33一端的限位，进而通过和活塞轴32连接的限位帽33控制整个活塞部30的移动。
可选地，阀口22的朝向垂直于流通口12的朝向，流体进入流通口12后垂直流入阀口22，形成通路，这样可满足一些工况下的流体换向需求。
具体地，活塞头31和活塞轴32为一体结构，限位帽33和活塞轴32固定连接。或，在另一个未图示出的实施例中，限位帽33和活塞轴32为一体结构，活塞头31和活塞轴32固定连接。
如图1和图4所示，将活塞头31和活塞轴32做成一体结构，加工简单，使用便利。再将限位帽33与活塞轴32固定连接，使得活塞头31、活塞轴32和限位帽33连接成一个整体。这样限位帽33与活塞轴32连接可靠，强度高，与采用卡簧的方式相比，不易脱落或变形。
可选地，固定连接分为很多种，包括焊接、过盈配合等方式。其中，焊接固定连接的方式连接更稳定，而且不需要其他辅助件配合。
具体地，封堵部10和阀体20铆接、卡接或焊接。将阀体20和封堵部10连接后作为一个整体放入阀岛中，装配或拆卸更方便，单向阀整体结构也更稳定可靠。
如图1所示，封堵部10和阀体20铆接，阀体20的外壁具有环形槽23，封堵部10包括主体13和设置在主体13上的铆接环14，主体13具有流通腔11和流通口12，铆接环14的壁厚小于主体13的壁厚，铆接环14的端部通过铆接卡入环形槽23内。
在本实施例中，铆接环14端部通过铆接卡入环形槽23内，先将铆接环14端部移动到环形槽23的位置，之后使用工具使铆接环14的端部径向收缩，抵住环形槽23的内壁，实现铆接，从而将阀体20和封堵部10连接成一个整体。流通腔11和流通口12设置在封堵部10中的主体13上，用来连通流道和流通腔11，保证流体的流动顺利进行。
可选地，主体13的端面和阀体20的端面抵接，这样可进一步在轴向对阀体20和主体13所在的封堵部10限位，提高结构稳定性。
如图1至图3所示，封堵部10还包括凸台15，凸台15设置在主体13的背离阀体20的一侧；流通口12为多个，多个流通口12在主体13的周向间隔设置。封堵部10上端设置凸台15，在安装或拆卸封堵部10时，可采用手握凸台15或者运用辅助件配合凸台15的方式来进行操作，更加方便地将单向阀整体放入开口54或从开口54内取出。主体13上多个流通口12周向间隔设置，以防止放置过程中因为结构封闭不可视放错位置，导致流通口12不能与流道相连通。设置多个流通口12，可以在将单向阀设置在阀岛的过程中，单向阀任意周向旋转角度放置都能保证流通口12与流道相连通。
具体地，阀体20包括：筒体24，过流孔21位于筒体24内；导套25，设置在过流孔21内，导套25具有导向孔26，活塞轴32可移动地穿过导向孔26；多个支梁，每个支梁的两端分别和导套25、筒体24连接。
在本实施例中，阀体20包括筒体24、导套25和多个支梁，多个支梁两端分别连接导套25和筒体24，保证了整体结构的稳定性，并且可固定导套25的位置，导套25上有导向孔26，用来穿过活塞轴32，对活塞轴32起引导作用，防止活塞轴32倾斜导致活塞部30倾斜。
具体地，活塞头31具有第一密封槽，活塞部30还包括第一密封圈，第一密封圈设置在第一密封槽内；阀体20的外壁具有第二密封槽，单向阀还包括第二密封圈，第二密封圈设置在第二密封槽内；封堵部10的外壁具有第三密封槽，单向阀还包括第三密封圈，第三密封圈设置在第三密封槽内。通过设置多个密封槽，可保证单向阀的密封性，避免流体泄露。
在本申请提供的另一未出示图示的实施例中，与上述实施例不同的是，封堵部10和阀体20卡接；其中，封堵部10具有卡槽，阀体20具有卡扣，卡扣卡入卡槽内；或，封堵部10具有卡扣，阀体20具有卡槽，卡扣卡入卡槽内。在本实施例中，卡槽设置在封堵部10上，卡扣设置在阀体20上；或者，卡槽设置在阀体20上，卡扣设置在封堵部10上，阀体20和封堵部10通过卡槽和卡扣的卡接固定在一起，形成一个整体，提高整体连接的可靠性。
如图5和图6所示，根据本申请提供的又一实施例，提供了一种阀岛，阀岛包括阀座50和上述的单向阀，阀座50具有容纳腔51和间隔设置的输入流道52、输出流道53，输入流道52和容纳腔51连通，单向阀设置在容纳腔51内，容纳腔51和单向阀的流通口12连通，单向阀的阀口22可通断地和输出流道53连通。
在本实施例中，阀座50内设置有容纳腔51，单向阀设置在容纳腔51内，阀座50还具有间隔设置的输入流道52和输出流道53，并与容纳腔51连通，单向阀的阀口22可通断地和输出流道53流通，流通口12与容纳腔51连通，形成一个流道通路。流体流入，会依次经过输入流道52、容纳腔51、流通口12、流通腔11、过流孔21、阀口22和输出流道53。
在流体流入时，先经过输入流道52，此时单向阀处于关闭状态，流体进入容纳腔51，通过主体13侧面上的多个流通口12流入流通腔11，流体继续向下运动，进入过流孔21，推动活塞头31向下移动，弹性件40收缩，打开阀口22，使单向阀处于避让状态，流体再经由阀口22流入输出流道53，从而形成通路；当流体压力减小时，处于收缩状态弹性件40拉伸展开，拉动与其抵接的活塞头31向上运动，将阀口22关闭，使单向阀处于关闭状态，流体流入输入流道52之后由于阀口22关闭导致不能形成通路，将流体流道封堵。
具体地，输入流道52和输出流道53平行设置，容纳腔51具有开口54，开口54的内壁具有限位槽55，单向阀可从开口54取出或装入容纳腔51，阀岛还包括挡环60，挡环60可取出地卡入限位槽55内，挡环60和单向阀的封堵部10止挡配合。在本实施例中，容纳腔51具有开口54，开设在容纳腔51的上端，用来装配单向阀，这样设置，便于流道加工及单向阀的安装和取出。同时，单向阀从开口54伸入进到容纳腔51中，将开口54堵住，不会影响阀岛内部流体的流向。阀岛还包括挡环60，挡环60可取出地卡入开口54内壁上的限位槽55，并与封堵部10止挡配合，防止在阀岛工作过程中单向阀由于输入流道52的流体冲击过大而发生上下窜动。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种单向阀，其特征在于，包括：
    封堵部(10)，所述封堵部(10)具有流通腔(11)及和所述流通腔(11)连通的流通口(12)；
    阀体(20)，和所述封堵部(10)连接，所述阀体(20)具有过流孔(21)及和所述过流孔(21)连通的阀口(22)，所述过流孔(21)和所述流通腔(11)连通；
    活塞部(30)，所述活塞部(30)包括依次连接的活塞头(31)、活塞轴(32)和限位帽(33)，所述活塞轴(32)穿过所述阀体(20)，所述活塞头(31)位于所述阀体(20)远离所述流通腔(11)的一侧，所述限位帽(33)位于所述流通腔(11)内，所述活塞头(31)可移动地设置以封堵或打开所述阀口(22)；
    弹性件(40)，设置在所述流通腔(11)内，所述弹性件(40)的一端和所述阀体(20)抵接，所述弹性件(40)的另一端和所述限位帽(33)抵接。
  2. 根据权利要求1所述的单向阀，其特征在于，
    所述活塞头(31)和所述活塞轴(32)为一体结构，所述限位帽(33)和所述活塞轴(32)固定连接；或，
    所述限位帽(33)和所述活塞轴(32)为一体结构，所述活塞头(31)和所述活塞轴(32)固定连接。
  3. 根据权利要求1所述的单向阀，其特征在于，所述封堵部(10)和所述阀体(20)铆接、卡接或焊接。
  4. 根据权利要求3所述的单向阀，其特征在于，所述封堵部(10)和所述阀体(20)铆接，所述阀体(20)的外壁具有环形槽(23)，所述封堵部(10)包括主体(13)和设置在所述主体(13)上的铆接环(14)，所述主体(13)具有所述流通腔(11)和所述流通口(12)，所述铆接环(14)的壁厚小于所述主体(13)的壁厚，所述铆接环(14)的端部通过铆接卡入所述环形槽(23)内。
  5. 根据权利要求4所述的单向阀，其特征在于，所述封堵部(10)还包括凸台(15)，所述凸台(15)设置在所述主体(13)的背离所述阀体(20)的一侧；所述流通口(12)为多个，多个所述流通口(12)在所述主体(13)的周向间隔设置。
  6. 根据权利要求1所述的单向阀，其特征在于，所述封堵部(10)和所述阀体(20)卡接；其中，
    所述封堵部(10)具有卡槽，所述阀体(20)具有卡扣，所述卡扣卡入所述卡槽内；或，
    所述封堵部(10)具有卡扣，所述阀体(20)具有卡槽，所述卡扣卡入所述卡槽内。
  7. 根据权利要求1所述的单向阀，其特征在于，所述阀体(20)包括：
    筒体(24)，所述过流孔(21)位于所述筒体(24)内；
    导套(25)，设置在所述过流孔(21)内，所述导套(25)具有导向孔(26)，所述活塞轴(32)可移动地穿过所述导向孔(26)；
    多个支梁，每个所述支梁的两端分别和所述导套(25)、所述筒体(24)连接。
  8. 根据权利要求1所述的单向阀，其特征在于，
    所述活塞头(31)具有第一密封槽，所述活塞部(30)还包括第一密封圈，所述第一密封圈设置在所述第一密封槽内；
    所述阀体(20)的外壁具有第二密封槽，所述单向阀还包括第二密封圈，所述第二密封圈设置在所述第二密封槽内；
    所述封堵部(10)的外壁具有第三密封槽，所述单向阀还包括第三密封圈，所述第三密封圈设置在所述第三密封槽内。
  9. 一种阀岛，其特征在于，所述阀岛包括阀座(50)和权利要求1至8中任一项所述的单向阀，所述阀座(50)具有容纳腔(51)和间隔设置的输入流道(52)、输出流道(53)，所述输入流道(52)和所述容纳腔(51)连通，所述单向阀设置在所述容纳腔(51)内，所述容纳腔(51)和所述单向阀的流通口(12)连通，所述单向阀的阀口(22)可通断地和所述输出流道(53)连通。
  10. 根据权利要求9所述的阀岛，其特征在于，所述输入流道(52)和所述输出流道(53)平行设置，所述容纳腔(51)具有开口(54)，所述开口(54)的内壁具有限位槽(55)，所述单向阀可从所述开口(54)取出或装入所述容纳腔(51)，所述阀岛还包括挡环(60)，所述挡环(60)可取出地卡入所述限位槽(55)内，所述挡环(60)和所述单向阀的封堵部(10)止挡配合。
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