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WO2024093464A1 - 紧凑型出液系统及口腔清洗方法 - Google Patents

紧凑型出液系统及口腔清洗方法 Download PDF

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Publication number
WO2024093464A1
WO2024093464A1 PCT/CN2023/114728 CN2023114728W WO2024093464A1 WO 2024093464 A1 WO2024093464 A1 WO 2024093464A1 CN 2023114728 W CN2023114728 W CN 2023114728W WO 2024093464 A1 WO2024093464 A1 WO 2024093464A1
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WO
WIPO (PCT)
Prior art keywords
liquid
liquid outlet
cavity
piston
compact
Prior art date
Application number
PCT/CN2023/114728
Other languages
English (en)
French (fr)
Inventor
付家全
Original Assignee
上海飞象健康科技有限公司
广东倍至健康科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海飞象健康科技有限公司, 广东倍至健康科技有限公司 filed Critical 上海飞象健康科技有限公司
Publication of WO2024093464A1 publication Critical patent/WO2024093464A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons

Definitions

  • the present invention relates to the technical field of oral cleaning, and in particular to a compact liquid outlet system and an oral cleaning method.
  • the water flosser has become one of the essential small appliances in the home as a substitute for traditional dental floss. Its basic working principle is to use the pump to draw water from the water tank and spray high-pressure pulse water through the nozzle hundreds or even thousands of times per minute to clean food residues and dental plaque in the gaps between teeth and massage gums, etc., to improve the oral environment.
  • pulse and water pressure are the key mechanisms for their cleaning effect.
  • the pulse intensity of the water flow of the water flosser needs to be maintained for a longer period of time.
  • the flow rate of the water pump of the existing oral irrigator is small before and after the peak flow, the impact force is small, and the utilization rate of water is not high.
  • the existing oral irrigator is not compact enough in pump structure design and has a large volume, which is not conducive to carrying and holding.
  • the technical problem to be solved by the present invention is to provide a compact liquid outlet system and an oral cleaning method, which can save the installation space of the liquid outlet one-way valve, make the overall structure of the compact liquid outlet system more compact, and especially make small products like water flossers more portable.
  • the present invention provides a compact liquid discharge system, comprising:
  • a liquid pump device the liquid pump device comprises a liquid pump cavity, a piston slidably arranged in the liquid pump cavity, and a piston rod liquid-tightly penetrated in the liquid pump cavity and connected to the piston, the piston divides the pump cavity of the liquid pump cavity into a rod cavity and a rodless cavity, and the piston is internally integrated with a liquid outlet one-way valve that only allows the liquid in the rod cavity to flow to the rodless cavity;
  • a liquid inlet flow channel, the liquid inlet flow channel is connected to the rod chamber through a liquid inlet one-way valve;
  • the liquid outlet flow channel is connected to the rodless cavity.
  • the liquid outlet one-way valve includes a liquid outlet valve cavity formed inside the piston and opening toward the rodless cavity, a liquid outlet valve core floating in the liquid outlet valve cavity, and a liquid outlet valve seat formed inside the piston and located on the side of the liquid outlet valve cavity away from the rodless cavity.
  • the liquid outlet valve seat has an overflow hole connecting the liquid outlet valve cavity and the rod cavity. The liquid outlet valve core abuts against the liquid outlet valve seat when the piston makes a discharge stroke and is separated from the liquid outlet valve seat when the piston makes a suction stroke.
  • the compact liquid outlet system further comprises a nozzle connected to the liquid outlet channel, the rodless chamber is in a negative pressure state when the piston makes a suction stroke and the increased volume change of the rodless chamber is greater than the reduced volume change of the rod chamber.
  • the compact liquid outlet system also includes a release system, which includes a release channel connected to the rodless chamber and a post-peak release mechanism that can block the release channel.
  • the post-peak release mechanism opens the release channel only when the piston makes a discharge stroke and after a flow peak occurs in the liquid pump device.
  • the post-peak release mechanism includes a moving rod passing through the liquid pump cavity and an elastic reset part driving the moving rod to reset.
  • One end of the moving rod is provided with a release valve core for blocking the release flow channel, and the other end of the moving rod is provided with a supporting part that abuts against the liquid outlet one-way valve or piston after a flow peak appears in the liquid pump device.
  • the release channel includes a vertical channel section extending along a direction parallel to the axial direction of the liquid pump cavity and connected to the rodless cavity, and a transverse channel section extending along the radial direction of the liquid pump cavity and connected to the vertical channel section; the movable rod gap is penetrated in the vertical channel section, and the support member extends into the rodless cavity or the liquid outlet valve cavity to restrict the liquid outlet valve core in the liquid outlet valve cavity.
  • the liquid pump cavity comprises a liquid inlet adapter and a liquid outlet adapter which are mutually sleeved inside and outside, and the groove structure of the liquid inlet adapter and the groove structure of the liquid outlet adapter jointly define the pump cavity.
  • the liquid outlet channel comprises a nozzle insertion hole and a guide channel both formed in the liquid pump cavity, and the guide channel is communicated with the nozzle insertion hole and the rodless cavity respectively.
  • the liquid pump cavity is provided with a first sealing ring that is in liquid-tight sliding cooperation with the piston and a second sealing ring that is in liquid-tight sliding cooperation with the piston rod, and the maximum sealing pressure of the first sealing ring is greater than the maximum sealing pressure of the second sealing ring.
  • the present invention also provides an oral cleaning method using the compact liquid outlet system, comprising the following steps:
  • the piston is pulled back by the piston rod to perform a liquid suction stroke, the liquid inlet check valve is switched to a closed state, the liquid outlet check valve is switched to an open state, and the liquid in the rod chamber flows into the rodless chamber through the liquid outlet check valve. At the same time, the liquid in the nozzle of the compact liquid outlet system flows back to the rodless chamber;
  • the piston is pushed out by the piston rod to make a discharge stroke, the inlet one-way valve is switched to an open state, the outlet one-way valve is switched to a closed state, the liquid in the inlet flow channel flows into the rod chamber through the inlet one-way valve, and the liquid in the rodless chamber flows into the nozzle through the outlet flow channel; after a flow peak appears in the liquid pump device, part of the liquid in the rodless chamber flows back to a liquid storage tank through the release flow channel.
  • the compact liquid outlet system and oral cleaning method of the present invention have the following beneficial effects: when the piston is pulled back by the piston rod to perform a liquid suction stroke, the internal pressure of the rod chamber increases and the internal pressure of the rodless chamber decreases, the liquid inlet one-way valve switches to a closed state, and the liquid outlet one-way valve switches to an open state, and the liquid in the rod chamber can overcome the closing preload of the liquid outlet one-way valve and flow into the rodless chamber.
  • the main innovation of the compact liquid outlet system of the present invention lies in the setting method of the liquid outlet one-way valve, that is, the liquid outlet one-way valve is integrated into the internal structure of the piston of the liquid pump device, which can save installation space and make the overall structure of the liquid pump device more compact, thereby making it compact.
  • the overall structure of the liquid outlet system is more compact, and the overall size can be designed to be more delicate, especially making small products like water flossers more portable. Therefore, the compact liquid outlet system of the present invention can save the installation space of the liquid outlet check valve, making the overall structure of the compact liquid outlet system more compact, especially making small products like water flossers more portable.
  • the oral cleaning method of the present invention can save liquid before and after the flow peak, improving the convenience of cleaning the oral cavity.
  • FIG1 is a front view of a compact liquid outlet system of the present invention.
  • FIG2 is a cross-sectional view of the compact liquid outlet system along line A-A in FIG1 during liquid aspiration;
  • FIG3 is a cross-sectional view of the compact liquid outlet system along line B-B in FIG2 during liquid aspiration;
  • FIG4 is a cross-sectional view of the compact liquid outlet system along line A-A in FIG1 during liquid discharge;
  • FIG5 is an enlarged view of portion C in FIG4 ;
  • FIG6 is a cross-sectional view of the compact liquid outlet system along line B-B in FIG2 during liquid discharge;
  • FIG7 is an enlarged view of portion D in FIG6 ;
  • FIG8 is an assembly diagram of the liquid outlet adapter and the nozzle
  • FIG9 is a first stereoscopic view of the liquid outlet adapter
  • FIG10 is a second stereoscopic view of the liquid outlet adapter
  • FIG. 11 shows an exploded view of the post-peak release mechanism, the liquid outlet one-way valve, the piston and the piston rod.
  • Liquid pump device 11 Liquid pump chamber 111 Liquid inlet adapter 112 Liquid outlet adapter 12 Piston 13 Piston rod 14 Rod cavity 15 Rodless cavity 16 First sealing ring 17 Second sealing ring 18 Transmission mechanism 19
  • Driving mechanism 2 Liquid outlet check valve 21 Liquid outlet valve chamber 22 Liquid outlet valve core 23 Liquid outlet valve seat 231 Overflow hole 3 Liquid inlet channel 4 Liquid inlet check valve 5 Liquid outlet channel 51 Nozzle socket 52 diversion channel 6 Nozzles 7 Release system 71 Release flow channel 711 vertical flow channel section 712 Transverse flow channel section 72 Post-peak release mechanism 721 Mobile Rod 722 elastic return element 723 Release valve core 724 Top support
  • the present invention provides a compact liquid outlet system, comprising:
  • a liquid pump device 1 the liquid pump device 1 comprises a liquid pump cavity 11, a piston 12 slidably arranged in the liquid pump cavity 11, and a piston rod 13 liquid-tightly penetrated in the liquid pump cavity 11 and connected to the piston 12, the piston 12 divides the pump cavity of the liquid pump cavity 11 into a rod cavity 14 and a rodless cavity 15, and the piston 12 is internally integrated with a liquid outlet check valve 2 that only allows the liquid in the rod cavity 14 to flow to the rodless cavity 15;
  • the liquid inlet channel 3 is connected to the rod chamber 14 through the liquid inlet check valve 4;
  • the liquid outlet channel 5 is connected to the rodless cavity 15 .
  • the main innovation of the compact liquid outlet system of the present invention lies in the arrangement of the liquid outlet one-way valve 2, that is, the liquid outlet one-way valve 2 is integrated into the internal structure of the piston 12 of the liquid pump device 1, which can save installation space and make the overall structure of the liquid pump device 1 more compact, thereby making the overall structure of the compact liquid outlet system more compact, and the overall size can be designed to be more delicate, especially making small products like water flossers more portable. Therefore, the compact liquid outlet system of the present invention can save the installation space of the liquid outlet one-way valve 2, making the overall structure of the compact liquid outlet system more compact and compact, especially making small products like water flossers more portable.
  • the liquid pump device 1 further comprises a transmission mechanism 18 and a driving mechanism 19 , and the piston rod 13 is connected to the driving mechanism 19 via the transmission mechanism 18 .
  • the piston rod 13 performs reciprocating motion under the drive of the driving mechanism 14 .
  • the liquid pump device 1 may be a plunger pump; the transmission mechanism 18 and the drive mechanism 19 are both existing mechanisms, the transmission mechanism 18 may be an eccentric wheel assembly, and the drive mechanism 19 may be a motor assembly, which will not be described in detail here.
  • the type of the liquid inlet one-way valve 4 can be a ball valve (with a return spring) or a valve plate.
  • the liquid outlet one-way valve 2 includes a A liquid outlet valve cavity 21 is inside the piston 12 and opens toward the rodless cavity 15, a liquid outlet valve core 22 is floated in the liquid outlet valve cavity 21, and a liquid outlet valve seat 23 is formed inside the piston 12 and located on the side of the liquid outlet valve cavity 21 away from the rodless cavity 15.
  • the liquid outlet valve seat 23 has an overflow hole 231 which connects the liquid outlet valve cavity 21 and the rod cavity 14 to each other.
  • the liquid outlet valve core 22 abuts against the liquid outlet valve seat 23 when the piston 12 makes a discharge stroke and is separated from the liquid outlet valve seat 23 when the piston 12 makes a suction stroke.
  • the closing principle of the liquid inlet check valve 4 is: due to the downward movement of the piston 12, the rod chamber 14 becomes smaller, the internal pressure of the rod chamber 14 increases, and because the opening direction of the liquid inlet check valve 4 is from the liquid inlet flow channel 3 to the rod chamber 14, the liquid inlet check valve 4 is always in a closed state.
  • the opening principle of the liquid outlet check valve 2 is: due to the downward movement of the piston 12, the liquid in the rod chamber 14 squeezes toward the overflow hole 231, and the liquid pushes open the liquid outlet valve core 22 of the liquid outlet check valve 2. At this time, the liquid in the rod chamber 14 flows into the rodless chamber 15 through the liquid outlet valve chamber 21. .
  • the volume of the rod chamber 14 increases due to the upward movement of the piston 12, and the internal pressure of the rod chamber 14 decreases. Since the opening direction of the liquid inlet check valve 4 is from the liquid inlet channel 3 to the rod chamber 14, the liquid in the liquid inlet channel 3 pushes the liquid inlet check valve 4 open, and then flows into the rod chamber 14.
  • the closing principle of the liquid outlet check valve 2 Since the piston 12 wants to squeeze out the liquid in the rodless chamber 15, the internal force of the rodless chamber 15 increases, so that the liquid outlet valve core 22 of the liquid outlet check valve 2 is liquid-tightly pressed against the liquid outlet valve seat 23 to block the overflow hole 231 of the liquid outlet valve seat 23, and the piston 12 squeezes the liquid in the rodless chamber 15, and finally the liquid is ejected through the liquid outlet channel 5.
  • the piston 12 performs a liquid discharge stroke, the liquid inlet process of the rod chamber 14 and the liquid discharge process of the rodless chamber 15 are carried out simultaneously.
  • the above-mentioned compact liquid discharge system also includes a nozzle 6 connected to the liquid discharge channel 5, and the above-mentioned rodless chamber 15 is in a negative pressure state when the piston 12 performs the liquid suction stroke, and the volume change of the rodless chamber 15 is greater than the volume change of the rod chamber 14.
  • the rodless chamber 15 When in use, when the piston 12 moves down, since the rodless chamber 15 is in a negative pressure state, the rodless chamber 15 can generate suction force on the liquid in the nozzle 6, so that the liquid in the nozzle 6 flows back to make up for the difference in volume change between the rodless chamber 15 and the rod chamber 14, thereby achieving the effect of saving liquid.
  • the piston 12 completes the liquid suction stroke the tube cavity of the nozzle 6 is almost empty.
  • the piston 12 starts to perform the liquid discharge stroke, and part of the liquid before the flow peak appears will fill the tube cavity of the nozzle 6, so that part of the liquid with a lower flow rate will not be ejected from the nozzle 6, that is, the moment when the liquid is ejected from the nozzle 6 is when the flow peak appears or close to the flow peak.
  • liquid can be saved, and the duration of oral cleaning can be increased, but also the amount of liquid ejected before the peak flow rate appears can be reduced, so as to achieve the purpose of saving liquid before the peak, and improve the pulse feeling and effective utilization rate of liquid when cleaning the user's oral cavity.
  • the overall structure of the piston 12 and the piston rod 13 is a two-stage stepped shaft structure. Since the piston rod 13 occupies part of the space of the rod cavity 14, not only can the supply amount of the liquid inlet channel 3 be reduced, but also the suction capacity of the liquid pump device 1 to the liquid in the nozzle 6 can be improved.
  • the type liquid discharge system also includes a release system 7, which includes a release channel 71 connected to the rodless chamber 15 and a post-peak release mechanism 72 that can block the release channel 71.
  • the post-peak release mechanism 72 opens the release channel 71 only when the piston 12 makes a discharge stroke and after the flow peak of the liquid pump device 1 appears.
  • the post-peak release mechanism 72 switches the release channel 71 to an open state, so that part of the liquid with a lower flow rate after the flow peak appears is recycled and reused through the release channel 71, thereby achieving the purpose of saving liquid after the peak.
  • the post-peak release mechanism 72 includes a moving rod 721 penetrating the liquid pump cavity 11 and an elastic reset member 722 (such as a compression spring) for driving the moving rod 721 to reset, one end of the moving rod 721 is provided with a release valve core 723 for blocking the release flow channel 71, and the other end of the moving rod 721 is provided with a support member 724 that abuts against the liquid discharge check valve 2 or the piston 12 after the liquid pump device 1 has a flow peak.
  • an elastic reset member 722 such as a compression spring
  • the liquid discharge check valve 2 or the piston 12 When in use, after the liquid pump device 1 has a flow peak, that is, the piston 12 moves up to the second half of the discharge stroke, the liquid discharge check valve 2 or the piston 12 will abut against the support member 724, and then the support member 724 moves up synchronously. Since the supporting member 724 and the release valve core 723 are both fixedly arranged on the moving rod 721, the release valve core 723 is also synchronously moved upward under the drive of the moving rod 721 until the release valve core 723 no longer blocks the release flow channel 71, allowing part of the liquid after the flow peak to flow into the release flow channel 71.
  • the release channel 71 includes a vertical channel section 711 extending along a direction parallel to the axial direction of the liquid pump chamber 11 and connected to the rodless chamber 15, and a transverse channel section 712 extending along the radial direction of the liquid pump chamber 11 and connected to the vertical channel section 711; the movable rod 721 is gap-pierced in the vertical channel section 711, and the support member 724 extends into the rodless chamber 15 or the liquid outlet valve chamber 21 to limit the liquid outlet valve core 22 in the liquid outlet valve chamber 21.
  • the vertical flow channel section 711 and the rodless chamber 15 are coaxially connected, which makes it easier for the liquid to flow from the rodless chamber 15 into the vertical flow channel section 711; part of the structure of the elastic reset member 722 is located in the vertical flow channel section 711, and the elastic reset member 722 is sleeved on the moving rod 721.
  • One end of the elastic reset member 722 along its own telescopic direction abuts against the inner wall of the vertical flow channel section 711 (for example, the inner wall of the stepped hole) and the other end abuts against the support member 724, thereby realizing the moving reset function of the moving rod 721.
  • the position design of the support member 724 that is, the above-mentioned support member 724 extends into the rodless chamber 15 or the liquid outlet valve chamber 21, so that the liquid outlet valve core 22 can always be restricted in the liquid outlet valve chamber 21, and the liquid outlet valve core 22 is prevented from floating out of the liquid outlet valve chamber 21, thereby ensuring the normal operation of the liquid outlet check valve 2.
  • the liquid outlet valve core 22 is spherical and has no valve core reset member (such as a spring);
  • the resistance loss of the fluid is small.
  • the power consumption of the liquid pump device 1 is smaller than that of the discharge stroke; Since the liquid in the rod chamber 14 can be forced into the rodless chamber 15, the size of the liquid outlet one-way valve 2 can be designed to be relatively small, which will not affect the resistance encountered by the piston 12 when discharging liquid.
  • the smaller design of the liquid outlet one-way valve 2 is also conducive to improving the compactness and smallness of the structural size of the liquid pump device 1.
  • the above-mentioned liquid outlet valve core 22 will abut and cooperate with the supporting member 724, so that the release valve core 723 no longer blocks the connection between the vertical flow channel section 711 and the horizontal flow channel section 712; more specifically, the release valve core 723 is used to block the vertical flow channel section 711.
  • the liquid outlet channel 5 includes a nozzle insertion hole 51 and a guide channel 52 both formed in the liquid pump cavity 11, and the guide channel 52 is respectively connected to the nozzle insertion hole 51 and the rodless cavity 15.
  • the guide channel 52 is respectively connected to the nozzle insertion hole 51 and the rodless cavity 15.
  • the above-mentioned liquid pump cavity 11 includes a liquid inlet adapter 111 and a liquid outlet adapter 112 which are mutually sleeved inside and outside, and the groove structure of the liquid inlet adapter 111 and the groove structure of the liquid outlet adapter 112 jointly define the above-mentioned pump cavity.
  • the liquid inlet adapter 111 is provided with a docking structure for installing the liquid inlet check valve 4
  • the liquid outlet adapter 112 is provided with a docking structure for installing the nozzle 6.
  • the liquid outlet adapter 112 is formed with the above-mentioned vertical flow channel section 711, the horizontal flow channel section 712, the nozzle plug hole 51 and the guide channel 52, which can reduce the number of parts and improve the compactness of the liquid pump device 1.
  • the liquid pump cavity 11 is provided with a first sealing ring 16 that is in liquid-tight sliding cooperation with the piston 12 and a second sealing ring 17 that is in liquid-tight sliding cooperation with the piston rod 13, and the maximum sealing pressure of the first sealing ring 16 is greater than the maximum sealing pressure of the second sealing ring 17.
  • the first sealing ring 16 is subjected to high pressure, but a small amount of leakage does not affect the work, which reduces the sealing requirements of the sealing ring that withstands high pressure; the second sealing ring 17 is not allowed to leak, but because of its low working pressure, the working condition is improved and the service life is greatly extended.
  • the existing technology of water flossers only has a type of sealing ring called a high-pressure sealing ring, which requires both high sealing pressure and no leakage. Therefore, compared with the existing technology, the technical solution of this embodiment has lower performance requirements for the sealing ring, and the service life of the sealing ring is effectively extended.
  • the present invention also provides an oral cleaning method using the above-mentioned compact liquid outlet system, comprising the following steps:
  • the piston 12 is pulled back by the piston rod 13 to perform a liquid suction stroke, the liquid inlet check valve 4 is switched to a closed state, the liquid outlet check valve 2 is switched to an open state, and the liquid in the rod chamber 14 flows into the rodless chamber 15 through the liquid outlet check valve 2. At the same time, the liquid in the nozzle 6 of the compact liquid outlet system flows back to the rodless chamber 15;
  • the piston 12 is pushed out by the piston rod 13 to perform a discharge stroke, the inlet check valve 4 is switched to an open state, the outlet check valve 2 is switched to a closed state, and the liquid in the inlet flow channel 3 flows into the rod chamber 14 through the inlet check valve 4, and the liquid in the rodless chamber 15
  • the liquid flows into the nozzle 6 through the liquid outlet channel 5; after the flow peak appears in the liquid pump device 1, part of the liquid in the rodless chamber 15 flows back to a liquid storage tank through the release channel 71.
  • the oral cleaning method of the present invention when the piston 12 makes a suction stroke, the liquid in the nozzle 6 of the compact liquid outlet system flows back to the rodless chamber 15, so that the function of saving liquid before the flow peak occurs can be achieved (the specific reasons are described above and will not be repeated here); when the piston 12 makes a discharge stroke, part of the liquid in the rodless chamber 15 flows back to a liquid storage tank through the release channel 71, so that the function of saving liquid after the flow peak occurs can be achieved (the specific reasons are described above and will not be repeated here).
  • the compact liquid outlet system is very small and compact, it is very convenient for users to clean their oral cavity. Therefore, the oral cleaning method of the present invention can save liquid before and after the flow peak and improve the convenience of cleaning the oral cavity.
  • the compact liquid outlet system of the present invention can save the installation space of the liquid outlet one-way valve, making the overall structure of the compact liquid outlet system more compact, especially making small products such as water flossers more portable; the oral cleaning method can save liquid before and after the flow peak, and improve the convenience of cleaning the oral cavity. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

一种紧凑型出液系统及口腔清洗方法，紧凑型出液系统包括：液泵装置（1），液泵装置（1）包括液泵腔体（11）、滑动设置于液泵腔体（11）内的活塞（12）以及液密穿设于液泵腔体（11）且连接于活塞（12）的活塞杆（13），活塞（12）将液泵腔体（11）的泵腔分隔成有杆腔（14）和无杆腔（15），活塞（12）的内部集成有只允许有杆腔（14）内的液体流向无杆腔（15）的出液单向阀（2）；进液流道（3），进液流道（3）通过进液单向阀（4）连通于有杆腔（14）；出液流道（5），出液流道（5）连通于无杆腔（15）。紧凑型出液系统能够节省出液单向阀（2）的安装空间，使得整体结构更加小巧紧凑，类似冲牙器的小型产品更具有便携性。

Description

紧凑型出液系统及口腔清洗方法 技术领域
本发明涉及口腔清洗技术领域，特别是涉及一种紧凑型出液系统及口腔清洗方法。
背景技术
随着生活水平的提高，人们对口腔护理的意识逐渐提高，市面上的口腔清洁工具也越发多样，其中，冲牙器作为传统牙线的替代品成了家庭必备小家电之一。其基本工作原理为利用泵体从水箱中抽水，经过喷嘴喷射出每分钟几百次乃至上千次的高压脉冲水流用以清理牙齿缝隙中的食物残渣、牙菌斑以及按摩牙龈等，改善口腔环境。
目前现有的脉冲式冲牙器产品，脉冲和水压是其发挥清洁作用的关键机制。为达到清洁效果，需更时间地保证冲牙器的水流的脉冲强度。
现有冲牙器的水泵流量在峰值流量前及峰值流量后的流速小，冲击力小，对水的利用率不高。此外，现有冲牙器由于泵结构设计不够紧凑，体积大，不利于携带和握持。
发明内容
鉴于以上所述现有技术的缺点，本发明要解决的技术问题在于提供一种紧凑型出液系统及口腔清洗方法，能够节省出液单向阀的安装空间，使得紧凑型出液系统的整体结构更加小巧紧凑，尤其能够使类似冲牙器的小型产品更具有便携性。
为了解决上述技术问题，本发明提供一种紧凑型出液系统，包括：
液泵装置，液泵装置包括液泵腔体、滑动设置于液泵腔体内的活塞以及液密穿设于液泵腔体且连接于活塞的活塞杆，活塞将液泵腔体的泵腔分隔成有杆腔和无杆腔，活塞的内部集成有只允许有杆腔内的液体流向无杆腔的出液单向阀；
进液流道，进液流道通过进液单向阀连通于有杆腔；
出液流道，出液流道连通于无杆腔。
优选地，所述出液单向阀包括成型于活塞内部且朝无杆腔开口的出液阀腔、沉浮设置于出液阀腔中的出液阀芯以及成型于活塞内部且位于出液阀腔远离无杆腔的一侧的出液阀座，出液阀座具有将出液阀腔和有杆腔相互连通的溢液孔，出液阀芯在活塞做排液冲程时抵接于出液阀座且在活塞做吸液冲程时分离于出液阀座。
优选地，所述紧凑型出液系统还包括连通于出液流道的喷嘴，所述无杆腔在活塞做吸液冲程时呈负压状态并且无杆腔所增多的体积变化量大于所述有杆腔所减少的体积变化量。
优选地，所述紧凑型出液系统还包括释放系统，释放系统包括连通于无杆腔的释放流道以及可拦断释放流道内的峰后释放机构，峰后释放机构仅在活塞做排液冲程时且在液泵装置出现流量峰值之后打开释放流道。
优选地，所述峰后释放机构包括穿设于液泵腔体的移动杆以及驱使移动杆复位的弹性复位件，移动杆的一端设有用于封堵释放流道的释放阀芯，移动杆的另一端设有在液泵装置出现流量峰值之后与出液单向阀或活塞抵接配合的顶靠件。
优选地，所述释放流道包括沿平行于液泵腔体轴向的方向延伸连通至无杆腔的竖向流道段以及沿液泵腔体径向延伸连通于竖向流道段的横向流道段；所述移动杆间隙穿设于竖向流道段，所述顶靠件伸入至无杆腔或出液阀腔以将出液阀芯限制于出液阀腔中。
优选地，所述液泵腔体包括内外相互套接的进液转接头和出液转接头，进液转接头的凹槽结构和出液转接头的凹槽结构共同限定所述泵腔。
优选地，所述出液流道包括均成型于液泵腔体的喷嘴插孔和导流通道，导流通道分别与喷嘴插孔和无杆腔连通。
优选地，所述液泵腔体上设有与活塞液密滑动配合的第一密封圈以及与活塞杆液密滑动配合的第二密封圈，第一密封圈的最大密封压力大于第二密封圈的最大密封压力。
本发明还提供一种采用所述紧凑型出液系统的口腔清洗方法，包括以下步骤：
活塞被活塞杆回拉以做吸液冲程，进液单向阀切换至关闭状态，出液单向阀切换至打开状态，有杆腔内的液体经出液单向阀流入无杆腔，与此同时，紧凑型出液系统的喷嘴内的液体回流补给至无杆腔；
活塞被活塞杆推出以做排液冲程，进液单向阀切换至打开状态，出液单向阀切换至关闭状态，进液流道内的液体经进液单向阀流入有杆腔，无杆腔内的液体经出液流道流入喷嘴；在液泵装置出现流量峰值之后，无杆腔内的部分液体经释放流道回流至一液体贮存箱。
如上所述，本发明的紧凑型出液系统及口腔清洗方法，具有以下有益效果：当活塞被活塞杆回拉做吸液冲程时，有杆腔的内压增大并且无杆腔的内压变小，进液单向阀切换至关闭状态，出液单向阀切换至打开状态，有杆腔内的液体能够克服出液单向阀的关闭预紧力流入无杆腔。当活塞被活塞杆推出做排液冲程时，有杆腔的内压增小并且无杆腔的内压增大，进液单向阀切换至打开状态，进液流道内的液体能够克服进液单向阀的关闭预紧力流入有杆腔；与此同时，出液单向阀切换至关闭状态，无杆腔内液体被活塞挤入出液流道。本发明的紧凑型出液系统的主要创新点在于出液单向阀的设置方式，即出液单向阀集成于液泵装置的活塞的内部结构中，这样能够节省安装空间，使得液泵装置的整体结构更加紧凑，从而使得紧凑 型出液系统的整体结构更加紧凑，整体尺寸可以设计得更加精巧，尤其能够使类似冲牙器的小型产品更具有便携性。因此，本发明的紧凑型出液系统能够节省出液单向阀的安装空间，使得紧凑型出液系统的整体结构更加小巧紧凑，尤其能够使类似冲牙器的小型产品更具有便携性。此外，本发明的口腔清洗方法能够在流量峰值前后节省液体，提高在清洁口腔时的便捷性。
附图说明
图1显示为本发明的紧凑型出液系统的主视图；
图2显示为沿图1中A-A线的紧凑型出液系统在吸液时的剖视图；
图3显示为沿图2中B-B线的紧凑型出液系统在吸液时的剖视图；
图4显示为沿图1中A-A线的紧凑型出液系统在排液时的剖视图；
图5显示为图4中C部分的放大图；
图6显示为沿图2中B-B线的紧凑型出液系统在排液时的剖视图；
图7显示为图6中D部分的放大图；
图8显示为出液转接头和喷嘴的装配图；
图9显示为出液转接头的第一立体图；
图10显示为出液转接头的第二立体图；
图11显示为峰后释放机构、出液单向阀、活塞以及活塞杆的爆炸图。
元件标号说明
1                      液泵装置
11                     液泵腔体
111                    进液转接头
112                    出液转接头
12                     活塞
13                     活塞杆
14                     有杆腔
15                     无杆腔
16                     第一密封圈
17                     第二密封圈
18                     传动机构
19                     驱动机构
2                      出液单向阀
21                     出液阀腔
22                     出液阀芯
23                     出液阀座
231                    溢液孔
3                      进液流道
4                      进液单向阀
5                      出液流道
51                     喷嘴插孔
52                     导流通道
6                      喷嘴
7                      释放系统
71                     释放流道
711                    竖向流道段
712                    横向流道段
72                     峰后释放机构
721                    移动杆
722                    弹性复位件
723                    释放阀芯
724                    顶靠件
具体实施方式
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。
须知，本说明书所附图中所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容所能涵盖的范围内。 同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。
如图1至图7所示，本发明提供一种紧凑型出液系统，包括：
液泵装置1，液泵装置1包括液泵腔体11、滑动设置于液泵腔体11内的活塞12以及液密穿设于液泵腔体11且连接于活塞12的活塞杆13，活塞12将液泵腔体11的泵腔分隔成有杆腔14和无杆腔15，活塞12的内部集成有只允许有杆腔14内的液体流向无杆腔15的出液单向阀2；
进液流道3，进液流道3通过进液单向阀4连通于有杆腔14；
出液流道5，出液流道5连通于无杆腔15。
在本发明的紧凑型出液系统中，具体参见图2和图3，当活塞12被活塞杆13回拉做吸液冲程时，有杆腔14的内压增大并且无杆腔15的内压变小，进液单向阀4切换至关闭状态，出液单向阀2切换至打开状态，有杆腔14内的液体能够克服出液单向阀2的关闭预紧力流入无杆腔15。
具体参见图4、图5、图6以及图7，当活塞12被活塞杆13推出做排液冲程时，有杆腔14的内压增小并且无杆腔15的内压增大，进液单向阀4切换至打开状态，进液流道3内的液体能够克服进液单向阀4的关闭预紧力流入有杆腔14；与此同时，出液单向阀2切换至关闭状态，无杆腔15内液体被活塞12挤入出液流道5。
本发明的紧凑型出液系统的主要创新点在于出液单向阀2的设置方式，即出液单向阀2集成于液泵装置1的活塞12的内部结构中，这样能够节省安装空间，使得液泵装置1的整体结构更加紧凑，从而使得紧凑型出液系统的整体结构更加紧凑，整体尺寸可以设计得更加精巧，尤其能够使类似冲牙器的小型产品更具有便携性。因此，本发明的紧凑型出液系统能够节省出液单向阀2的安装空间，使得紧凑型出液系统的整体结构更加小巧紧凑，尤其能够使类似冲牙器的小型产品更具有便携性。
如图2所示，上述液泵装置1还包括传动机构18和驱动机构19，活塞杆13通过传动机构18传动连接于驱动机构19。活塞杆13在驱动机构14的驱动下做往复运动。
上述液泵装置1可以是柱塞泵；上述传动机构18和驱动机构19均为现有机构，传动机构18可以是偏心轮组件，驱动机构19可以电机组件，此处不再赘述。
上述进液单向阀4的类型可以为球阀(带复位弹簧)，也可以为阀片。
如图5和图7所示，为了简化上述出液单向阀2的结构，上述出液单向阀2包括成型于 活塞12内部且朝无杆腔15开口的出液阀腔21、沉浮设置于出液阀腔21中的出液阀芯22以及成型于活塞12内部且位于出液阀腔21远离无杆腔15的一侧的出液阀座23，出液阀座23具有将出液阀腔21和有杆腔14相互连通的溢液孔231，出液阀芯22在活塞12做排液冲程时抵接于出液阀座23且在活塞12做吸液冲程时分离于出液阀座23。
使用时，当活塞12被回拉做吸液冲程时，进液单向阀4的关闭原理：由于活塞12下移，有杆腔14变小，有杆腔14的内压增大，又由于进液单向阀4的打开方向是从进液流道3至有杆腔14，使得进液单向阀4始终处于关闭状态。出液单向阀2的开启原理：由于活塞12下移，有杆腔14的液体挤向溢液孔231，液体顶开了出液单向阀2的出液阀芯22，此时，有杆腔14的液体经出液阀腔21流入无杆腔15。。
当活塞12做排液冲程时，由于活塞12上移，有杆腔14的体积变大，有杆腔14的内压减小，又由于进液单向阀4的打开方向是从进液流道3至有杆腔14，使得进液流道3内的液体顶开进液单向阀4，从而流入有杆腔14。出液单向阀2的关闭原理：由于活塞12要挤出无杆腔15中的液体，无杆腔15的内力增大，从而将出液单向阀2的出液阀芯22液密抵触至出液阀座23以封堵出液阀座23的溢液孔231，活塞12挤压无杆腔15的液体，最终液体通过出液流道5喷出。也就是说，当活塞12做排液冲程时，有杆腔14的进液过程和无杆腔15的排液过程是同时进行的。
如图2和图3所示，为了在活塞12被回拉做吸液冲程时实现节流功能，上述紧凑型出液系统还包括连通于出液流道5的喷嘴6，上述无杆腔15在活塞12做吸液冲程时呈负压状态并且无杆腔15所增多的体积变化量大于上述有杆腔14所减少的体积变化量。使用时，当活塞12下移时，由于无杆腔15呈负压状态，无杆腔15能够对喷嘴6内的液体产生吸力，从而喷嘴6内的液体回流补足无杆腔15和有杆腔14之间的体积变化量的差值，从而实现节省液体的作用。当活塞12完成吸液冲程时，喷嘴6的管腔几乎是空的。随后，活塞12开始进行排液冲程，在流量峰值出现前的部分液体会充满喷嘴6的管腔，这样流速较低的部分液体不会从喷嘴6喷出，也就是说，液体从喷嘴6喷出的时刻为流量峰值出现时或者接近于流量峰值出现时。这样不仅能够充分利用暂留于喷嘴6的液体，节省液体，增加口腔清洗的续航时间，而且能够减少在流量峰值出现前的液体喷出量，实现峰前节省液体的目的，提高液体对用户口腔清洗时的脉冲感和有效利用率。此外，活塞12和活塞杆13的整体构造呈二级阶梯轴结构，由于活塞杆13占据了有杆腔14的部分空间，这样不仅能够减少进液流道3的供给量，而且能够提高液泵装置1对喷嘴6中的液体的吸入能力。
如图4、图5、图6以及图7所示，为了减少在流量峰值出现后的液体喷出量，上述紧凑 型出液系统还包括释放系统7，释放系统7包括连通于无杆腔15的释放流道71以及可拦断释放流道71内的峰后释放机构72，峰后释放机构72仅在活塞12做排液冲程时且在液泵装置1出现流量峰值之后打开释放流道71。使用时，当活塞12上移至排液冲程的下半程且接近于流量峰值出现时，峰后释放机构72使释放流道71切换至打开状态，使在流量峰值出现之后、流速较低的部分液体经释放流道71进行回收再利用，实现峰后节省液体的目的。
如图5、图7以及图11所示，为了简化上述峰后释放机构72的结构，上述峰后释放机构72包括穿设于液泵腔体11的移动杆721以及驱使移动杆721复位的弹性复位件722(例如压缩弹簧)，移动杆721的一端设有用于封堵释放流道71的释放阀芯723，移动杆721的另一端设有在液泵装置1出现流量峰值之后与出液单向阀2或活塞12抵接配合的顶靠件724。使用时，在液泵装置1出现流量峰值之后，即活塞12上移至排液冲程的下半程，出液单向阀2或活塞12会抵接于顶靠件724，随后，顶靠件724同步上移。由于顶靠件724和释放阀芯723均固定设置于移动杆721，释放阀芯723在移动杆721的带动下亦同步上移，直至释放阀芯723不再封堵释放流道71，让在流量峰值后的部分液体流入释放流道71。当活塞12进行吸液冲程时，出液单向阀2或活塞12会分离于顶靠件724，移动杆721在弹性复位件722的作用下回到原始位置，直至释放阀芯723再次封堵释放流道71。具体的，上述释放流道71的部分结构成型于液泵腔体。
为了更加便于上述无杆腔15中的液体流入释放流道71，上述释放流道71包括沿平行于液泵腔体11轴向的方向延伸连通至无杆腔15的竖向流道段711以及沿液泵腔体11径向延伸连通于竖向流道段711的横向流道段712；上述移动杆721间隙穿设于竖向流道段711，上述顶靠件724伸入至无杆腔15或出液阀腔21以将出液阀芯22限制于出液阀腔21中。具体的，竖向流道段711和无杆腔15同轴连通，这样更加便于液体从无杆腔15流入竖向流道段711；弹性复位件722的部分结构位于竖向流道段711中，弹性复位件722外套于移动杆721，弹性复位件722沿自身伸缩方向的一端抵接于竖向流道段711的内壁(例如阶梯状孔的内壁)并且另一端抵接于顶靠件724，从而实现移动杆721的移动复位功能。此外，上述峰后释放机构72的另一个比较重要的创新点在于：顶靠件724的位置设计，即上述顶靠件724伸入至无杆腔15或出液阀腔21，这样能够始终将出液阀芯22限制于出液阀腔21中，避免出液阀芯22浮出于出液阀腔21，从而保证出液单向阀2的正常工作。此处还有一个设计点：出液阀芯22呈球体状，是无阀芯复位件(例如弹簧)的；
在活塞12进行排液冲程时，由于出液阀腔21内或无杆腔15内没有设置阀芯复位件，流体的阻力损失小。在活塞12进行吸液冲程时，相比于排液冲程，液泵装置1的功耗更小；由 于有杆腔14的液体可被强制挤入无杆腔15，出液单向阀2的尺寸可以设计得比较小，不会影响活塞12在排液时所受到的阻力，并且出液单向阀2设计得小一些，还利于提高液泵装置1的结构尺寸的紧凑性和小巧性。
此外，在流量峰值出现之后，上述出液阀芯22会与顶靠件724抵接配合，从而使释放阀芯723不再封堵竖向流道段711和横向流道段712的连通处；更具体的，释放阀芯723是用于封堵竖向流道段711的。
如图7所示，为了便于排出液体，上述出液流道5包括均成型于液泵腔体11的喷嘴插孔51和导流通道52，导流通道52分别与喷嘴插孔51和无杆腔15连通。具体的，导流通道52的数量为多个，所有导流通道52位于上述竖向流道段711的外周处，这样便于在流量峰值出现后更多的液体流入竖向流道段711，实现更佳的节流功能。
如图5和图7所示，作为上述液泵腔体11的一种实施例：上述液泵腔体11包括内外相互套接的进液转接头111和出液转接头112，进液转接头111的凹槽结构和出液转接头112的凹槽结构共同限定上述泵腔。具体的，进液转接头111上设有供进液单向阀4安装的对接结构；出液转接头112上设有供喷嘴6安装的对接结构。具体参见图8、图9以及图10，出液转接头112上成型有上述竖向流道段711、横向流道段712、喷嘴插孔51以及导流通道52，这样能够减少零部件，提高液泵装置1的紧凑性。
如图5所示，为了提高上述液泵腔体11分别与活塞12和活塞杆13的液密性，上述液泵腔体11上设有与活塞12液密滑动配合的第一密封圈16以及与活塞杆13液密滑动配合的第二密封圈17，第一密封圈16的最大密封压力大于第二密封圈17的最大密封压力。第一密封圈16承受高压力，但是少量泄露不影响工作，降低了承受高压的密封圈的密封性要求；第二密封圈17不允许泄露，但是由于其工作压力低，使得工况得到改善，使用寿命极大延长。现有技术的冲牙器只有高压密封圈这一类密封圈，高压密封圈既要求密封压力高又不允许泄露，因此与现有技术相比，本实施例的技术方案对密封圈的性能要求降低，密封圈使用寿命有效延长。
本发明还提供一种采用上述紧凑型出液系统的口腔清洗方法，包括以下步骤：
活塞12被活塞杆13回拉以做吸液冲程，进液单向阀4切换至关闭状态，出液单向阀2切换至打开状态，有杆腔14内的液体经出液单向阀2流入无杆腔15，与此同时，紧凑型出液系统的喷嘴6内的液体回流补给至无杆腔15；
活塞12被活塞杆13推出以做排液冲程，进液单向阀4切换至打开状态，出液单向阀2切换至关闭状态，进液流道3内的液体经进液单向阀4流入有杆腔14，无杆腔15内的液体 经出液流道5流入喷嘴6；在液泵装置1出现流量峰值之后，无杆腔15内的部分液体经释放流道71回流至一液体贮存箱。
在本发明的口腔清洗方法中，当活塞12做吸液冲程时，紧凑型出液系统的喷嘴6内的液体回流补给至无杆腔15，这样能够实现在流量峰值出现之前节省液体的功能(具体理由参见上文，此处不再赘述)；当活塞12做排液冲程时，无杆腔15内的部分液体经释放流道71回流至一液体贮存箱，这样能够实现在流量峰值出现之后节省液体的功能(具体理由参见上文，此处亦不再赘述)。此外，由于紧凑型出液系统十分小巧紧凑，用户在清洁口腔时十分便捷。因此，本发明的口腔清洗方法能够在流量峰值前后节省液体，并且提高在清洁口腔时的便捷性。
综上所述，本发明的紧凑型出液系统能够节省出液单向阀的安装空间，使得紧凑型出液系统的整体结构更加小巧紧凑，尤其能够使类似冲牙器的小型产品更具有便携性；口腔清洗方法能够在流量峰值前后节省液体，并且提高在清洁口腔时的便捷性。所以，本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (10)

  1. 一种紧凑型出液系统，其特征在于，包括：
    液泵装置(1)，液泵装置(1)包括液泵腔体(11)、滑动设置于液泵腔体(11)内的活塞(12)以及液密穿设于液泵腔体(11)且连接于活塞(12)的活塞杆(13)，活塞(12)将液泵腔体(11)的泵腔分隔成有杆腔(14)和无杆腔(15)，活塞(12)的内部集成有只允许有杆腔(14)内的液体流向无杆腔(15)的出液单向阀(2)；
    进液流道(3)，进液流道(3)通过进液单向阀(4)连通于有杆腔(14)；
    出液流道(5)，出液流道(5)连通于无杆腔(15)。
  2. 根据权利要求1所述的紧凑型出液系统，其特征在于：所述出液单向阀(2)包括成型于活塞(12)内部且朝无杆腔(15)开口的出液阀腔(21)、沉浮设置于出液阀腔(21)中的出液阀芯(22)以及成型于活塞(12)内部且位于出液阀腔(21)远离无杆腔(15)的一侧的出液阀座(23)，出液阀座(23)具有将出液阀腔(21)和有杆腔(14)相互连通的溢液孔(231)，出液阀芯(22)在活塞(12)做排液冲程时抵接于出液阀座(23)且在活塞(12)做吸液冲程时分离于出液阀座(23)。
  3. 根据权利要求1所述的紧凑型出液系统，其特征在于：所述紧凑型出液系统还包括连通于出液流道(5)的喷嘴(6)，所述无杆腔(15)在活塞(12)做吸液冲程时呈负压状态并且无杆腔(15)所增多的体积变化量大于所述有杆腔(14)所减少的体积变化量。
  4. 根据权利要求1至权利要求3任一项所述的紧凑型出液系统，其特征在于：所述紧凑型出液系统还包括释放系统(7)，释放系统(7)包括连通于无杆腔(15)的释放流道(71)以及可拦断释放流道(71)内的峰后释放机构(72)，峰后释放机构(72)仅在活塞(12)做排液冲程时且在液泵装置(1)出现流量峰值之后打开释放流道(71)。
  5. 根据权利要求4所述的紧凑型出液系统，其特征在于：所述峰后释放机构(72)包括穿设于液泵腔体(11)的移动杆(721)以及驱使移动杆(721)复位的弹性复位件(722)，移动杆(721)的一端设有用于封堵释放流道(71)的释放阀芯(723)，移动杆(721)的另一端设有在液泵装置(1)出现流量峰值之后与出液单向阀(2)或活塞(12)抵接配合的顶靠件(724)。
  6. 根据权利要求5所述的紧凑型出液系统，其特征在于：所述释放流道(71)包括沿平行于液泵腔体(11)轴向的方向延伸连通至无杆腔(15)的竖向流道段(711)以及沿液泵腔 体(11)径向延伸连通于竖向流道段(711)的横向流道段(712)；所述移动杆(721)间隙穿设于竖向流道段(711)，所述顶靠件(724)伸入至无杆腔(15)或出液阀腔(21)以将出液阀芯(22)限制于出液阀腔(21)中。
  7. 根据权利要求1所述的紧凑型出液系统，其特征在于：所述液泵腔体(11)包括内外相互套接的进液转接头(111)和出液转接头(112)，进液转接头(111)的凹槽结构和出液转接头(112)的凹槽结构共同限定所述泵腔。
  8. 根据权利要求1所述的紧凑型出液系统，其特征在于：所述出液流道(5)包括均成型于液泵腔体(11)的喷嘴插孔(51)和导流通道(52)，导流通道(52)分别与喷嘴插孔(51)和无杆腔(15)连通。
  9. 根据权利要求1所述的紧凑型出液系统，其特征在于：所述液泵腔体(11)上设有与活塞(12)液密滑动配合的第一密封圈(16)以及与活塞杆(13)液密滑动配合的第二密封圈(17)，第一密封圈(16)的最大密封压力大于第二密封圈(17)的最大密封压力。
  10. 一种采用如权利要求4至权利要求9任一项所述的紧凑型出液系统的口腔清洗方法，其特征在于，包括以下步骤：
    活塞(12)被活塞杆(13)回拉以做吸液冲程，进液单向阀(4)切换至关闭状态，出液单向阀(2)切换至打开状态，有杆腔(14)内的液体经出液单向阀(2)流入无杆腔(15)，与此同时，紧凑型出液系统的喷嘴(6)内的液体回流补给至无杆腔(15)；
    活塞(12)被活塞杆(13)推出以做排液冲程，进液单向阀(4)切换至打开状态，出液单向阀(2)切换至关闭状态，进液流道(3)内的液体经进液单向阀(4)流入有杆腔(14)，无杆腔(15)内的液体经出液流道(5)流入喷嘴(6)；在液泵装置(1)出现流量峰值之后，无杆腔(15)内的部分液体经释放流道(71)回流至一液体贮存箱。
PCT/CN2023/114728 2022-11-04 2023-08-24 紧凑型出液系统及口腔清洗方法 WO2024093464A1 (zh)

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