WO2018103153A1 - 便携式微型高压咖啡机的超压保护装置 - Google Patents

便携式微型高压咖啡机的超压保护装置 Download PDF

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Publication number
WO2018103153A1
WO2018103153A1 PCT/CN2016/112379 CN2016112379W WO2018103153A1 WO 2018103153 A1 WO2018103153 A1 WO 2018103153A1 CN 2016112379 W CN2016112379 W CN 2016112379W WO 2018103153 A1 WO2018103153 A1 WO 2018103153A1
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Prior art keywords
protection device
pump
overpressure protection
coffee machine
water inlet
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PCT/CN2016/112379
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English (en)
French (fr)
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赵凯
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深圳星粒文化传播有限公司
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Publication of WO2018103153A1 publication Critical patent/WO2018103153A1/zh

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    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/005—Portable or compact beverage making apparatus, e.g. for travelling, for use in automotive vehicles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/58—Safety devices
    • 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
    • F04B53/04—Draining
    • 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
    • F04B53/123—Flexible valves
    • 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
    • F04B53/125—Reciprocating valves
    • F04B53/126—Ball valves
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the invention relates to an overpressure protection device for a portable miniature high-pressure coffee machine, which is an accessory structure of a pressure coffee machine and belongs to the field of daily life appliances.
  • the general high-pressure coffee machine has an overpressure protection device to prevent problems such as water leakage or bursting caused by excessive system pressure, but the overpressure protection device is generally a pressure relief valve, which has a complicated structure and a large shape, and is difficult to fit. In the mini coffee machine.
  • the technical problem to be solved by the present invention is to provide an overpressure protection device for a portable miniature high-pressure coffee machine.
  • the ultra-pressure protection device of the portable miniature high-pressure coffee machine has a small outer shape, a simple and compact structure, safety and reliability, and a stable effect.
  • the utility model relates to an overpressure protection device for a portable miniature high-pressure coffee machine, which comprises a pump cylinder and a pump plug.
  • the main body of the pump plug is placed in the pump cylinder, and the pump plug is provided with a water inlet check valve, a top hole and a water outlet hole, and the pump cylinder is provided with A water inlet is provided at a corresponding opening of the water inlet end of the valve hole of the water inlet check valve, and the top hole and the water outlet hole communicate with the valve hole of the water inlet check valve, and the top hole communicates with the inside of the pump cylinder, and the characteristic is: the pump plug
  • the pressure relief structure is provided when the water of the pump cylinder is discharged at a high pressure, and the drainage structure for returning the water discharged from the pressure relief structure to the outside of the pump cylinder.
  • the present invention can further solve the problem by taking the following measures:
  • One of the methods is: a steel ball is arranged near the water inlet end in the valve hole of the water inlet check valve, and the other end in the valve hole of the water inlet check valve is a blocked end.
  • the pressure relief structure is arranged at the blocked end;
  • the pressure relief structure is a valve core made of soft rubber and deformable under high pressure, and the outer diameter of the plug outer diameter of the valve outer diameter and the valve hole of the water inlet check valve is over Fit fit; the head of the spool is against the steel ball, and the tail of the spool is on the inside of the pump barrel.
  • One way is to have blind holes in the tail of the valve plug.
  • the head of the valve core has a concave portion on its side, and a rib is arranged between the concave portion and the concave portion.
  • One way is that the outer edge of the tail of the spool is chamfered.
  • One of the ways is that the end face of the tail of the valve core is provided with a blind hole, and the blind hole extends axially into the head of the valve core, corresponding to the position of the concave portion.
  • the drainage structure is formed by a gap between the outer side surface of the main body of the pump plug and the inner side surface of the pump cylinder, the water inlet, and the gap communicates with the water inlet, and the gap communicates with the outer opening of the plugging end.
  • the drainage structure is a notch provided at the lower end of the pump cylinder, and the notch communicates with the outer opening of the clogging end, and the position of the notch corresponds to the position of the outer opening of the clogging end.
  • One of the modes is that the upper end of the main body of the pump plug is sealed with the inner side of the pump cylinder by a sealing ring, and the lower end of the main body of the pump plug is sealed with the pump cylinder.
  • the invention has the advantages of small volume, simple and compact structure, safety and reliability, and stable effect. Moreover, the overpressure protection structure is arranged at the pump plug, which has little effect on the original structure and achieves the function of overpressure protection. Solved the problem of overpressure protection of the miniature high pressure coffee machine.
  • FIG. 1 is a schematic structural view of an overpressure protection device of a portable miniature high pressure coffee machine.
  • FIG 2 is a partially enlarged schematic view of the overpressure protection device.
  • Figure 3 is an exploded view of the overpressure protection device.
  • Fig. 4 is an exploded perspective view showing the overpressure protection device.
  • Figure 5 is a schematic view of the spool.
  • Figure 6 is a schematic illustration of the application of the invention to a coffee machine.
  • an overpressure protection device for a portable miniature high-pressure coffee machine includes a pump cylinder 1 and a pump plug 2.
  • the main body of the pump plug 2 is placed in the pump cylinder 1, and the pump plug is provided.
  • a water inlet check valve 3 There is a water inlet check valve 3, a top hole 4, a water outlet hole 5, and a water inlet check valve is arranged on the pump cylinder
  • the inlet of the water inlet end of the valve hole is provided with a water inlet 6
  • the top hole 4 and the water outlet hole 5 communicate with the valve hole 7 of the water inlet check valve
  • the top hole 4 communicates with the inside of the pump cylinder 1
  • the pump plug 2 is provided with
  • the pressure relief structure that vents when the water of the pump cylinder 1 is at a high pressure
  • the drainage structure that returns the water discharged from the pressure relief structure to the outside of the pump cylinder.
  • a steel ball 8 is disposed in the valve hole 7 of the water inlet check valve near the water inlet end, and the other end in the valve hole of the water inlet check valve is the blocked end 71.
  • the pressure relief structure is disposed at the blocked end 71; the pressure relief structure is a valve core 9 made of soft rubber and deformable under high pressure, and the outer diameter of the valve core 9 is matched with the inner diameter of the blocked end of the valve hole of the water inlet check valve.
  • the head of the spool is against the steel ball, and the tail of the spool is placed on the inner side of the pump barrel 1.
  • the spool functions both as a plugging function and as a pressure relief function, and has a compact structure and a multi-function.
  • the drainage structure is a notch 10 provided at the lower end of the pump cylinder 1, and the notch 10 communicates with the outer opening of the clogging end, and the position of the notch corresponds to the position of the outer opening of the clogging end 71.
  • the upper end of the body of the pump plug is sealed with the inner side of the pump cylinder by a sealing ring, and the lower end of the body of the pump plug is sealed with the pump cylinder.
  • invention patent application 201310501985.1 and invention patent 201320655334.3, invention patent application 201310069689.9 can be referred to.
  • the main body member 300, the casing 200, and the frame body 100 are provided with a cup 101.
  • the push rod 301 in the main body member 300 is pressed downward, when the pressure in the system (in the pump cylinder) is large, the water in the valve hole of the water inlet check valve applies pressure to the valve core, and the valve core is deformed when subjected to excessive pressure.
  • the outer diameter becomes smaller, a gap is formed at the joint with the valve hole, and excess water is discharged through the slit to the pump plug, and then discharged out of the pump cylinder through the drainage structure, so that the system pressure does not exceed the required range. Reach the purpose of pressure relief.
  • the invention has the advantages of small volume, simple and compact structure, safety and reliability, and stable effect. The original structure is changed little and the overpressure protection is achieved. Solved the problem of overpressure protection of the miniature high pressure coffee machine.
  • Another improvement example is:
  • the tail of the spool 9 is provided with a blind hole 11.
  • the blind hole 11 allows the spool 9 to facilitate deformation.
  • Another improvement example is:
  • the head of the valve body 9 is provided with a plurality of recesses 12 on its side, and a rib 13 is provided between the recess 12 and the recess.
  • the rib 13 maintains its reliable positioning guidance within the valve bore 7.
  • the outer edge of the tail of the spool 9 is provided with a chamfer 15.
  • Another improvement example is:
  • the end face of the tail portion of the spool 9 is provided with a blind hole 11 which extends axially into the head of the spool 9, corresponding to the position of the recess 12 below.
  • a blind hole 11 which extends axially into the head of the spool 9, corresponding to the position of the recess 12 below.
  • Another improvement example is:
  • the present embodiment is characterized in that the upper end of the main body of the pump plug 2 is sealed with the inner side of the pump cylinder 1 by a seal ring 14, and the lower end of the main body of the pump plug 2 is sealed with the pump cylinder 1.
  • the drainage structure is formed by a gap between the outer side surface of the main body of the pump plug and the inner side surface of the pump cylinder, the water inlet 6, and the gap communicates with the water inlet 6, and the gap communicates with the outer opening of the clogging end 71.
  • the water in the valve hole of the water inlet check valve applies pressure to the valve core, the valve core is compressed and deformed, and the outer diameter is changed. Small, a gap is formed in the joint with the valve hole, excess water is discharged through the gap to the pump plug, and then discharged out of the pump cylinder through the drainage structure, so that the system pressure does not exceed the required range.
  • the water inlet is used as a pressure relief outlet at a high pressure, and is multi-purpose, compact and simple. The depressurized water can be returned to the original container 302 for water, and reused, and does not flow into the box 200 for making coffee, which affects the production of coffee. The rest are the same as the above embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)
  • Safety Valves (AREA)

Abstract

提供了一种便携式微型高压咖啡机的超压保护装置，包括泵筒、泵塞，泵塞的主体置于泵筒内，泵塞设有入水单向阀、顶孔、出水孔，泵筒上设有在入水单向阀的阀孔的入水端的开口对应处设有入水口，顶孔、出水孔与入水单向阀的阀孔连通，顶孔与泵筒的内部连通，泵塞上设有在泵筒的水为高压时进行泄出的泄压结构，还包括将泄压结构所泄出的水回流到泵筒外的排水结构。该超压保护装置体积小，结构简单紧凑，安全可靠，效果稳定。解决了微型高压咖啡机的超压保护问题。

Description

便携式微型高压咖啡机的超压保护装置 技术领域
本发明涉及的是一种便携式微型高压咖啡机的超压保护装置，是一种压力咖啡机的的附属结构，属于日常生活用具领域。
背景技术
目前，一般的高压咖啡机都有超压保护装置，防止系统压力过大导致漏水或爆裂等问题出现，但是超压保护装置一般是卸压阀，结构比较复杂，外形比较大，很难适合放置在微型咖啡机内。
发明内容
本发明需要解决的技术问题是提供一种便携式微型高压咖啡机的超压保护装置，该种便携式微型高压咖啡机的超压保护装置的外形小，结构简单紧凑，安全可靠，效果稳定。
本发明便携式微型高压咖啡机的超压保护装置可以采取如下技术方案:
一种便携式微型高压咖啡机的超压保护装置，包括泵筒、泵塞，泵塞的主体置于泵筒内，泵塞设有入水单向阀、顶孔、出水孔，泵筒上设有在入水单向阀的阀孔的入水端的开口对应处设有入水口，顶孔、出水孔与入水单向阀的阀孔连通，顶孔与泵筒的内部连通，其特征是：泵塞上设有在泵筒的水为高压时进行泄出的泄压结构，还包括将泄压结构所泄出的水回流到泵筒外的排水结构。
本发明解决问题还可以进一步采取以下措施：
其中一个方式为：入水单向阀的阀孔内的靠近入水端处设有钢球，入水单向阀的阀孔内的另一端为堵塞端。
其中一个方式为：泄压结构设于堵塞端；泄压结构为软质橡胶制成的、在高压下可变形的阀芯，阀芯外径与入水单向阀的阀孔的堵塞端内径过盈配合；阀芯的头部顶住钢球，阀芯的尾部顶在泵筒内侧面。
其中一个方式为：阀芯的尾部设有盲孔。
其中一个方式为：阀芯的头部其侧面设凹部，凹部与凹部之间具有筋条。
其中一个方式为：阀芯的尾部的外边缘设有倒角。
其中一个方式为：阀芯的尾部的端面设有盲孔，盲孔轴向延伸到阀芯的头部中，对应凹部位置的下方。
其中一个方式为：排水结构由泵塞的主体的外侧面与泵筒的内侧面之间的间隙、所述的入水口形成，间隙与入水口连通，间隙与堵塞端的外开口连通。
其中一个方式为：排水结构为设于泵筒下端的缺口，缺口与堵塞端的外开口连通，缺口的位置与堵塞端的外开口位置对应。
其中一个方式为：泵塞的主体的上端采用密封圈与泵筒的内侧面密封，泵塞的主体的下端与泵筒密封。
上述技术方案具有这样的技术效果:
本发明体积小，结构简单紧凑，安全可靠，效果稳定。而且超压保护结构设于泵塞处，对原来结构改动小，又达到超压保护的作用。解决了微型高压咖啡机的超压保护问题。
附图说明
图1是便携式微型高压咖啡机的超压保护装置的结构示意图。
图2是超压保护装置的部分放大示意图。
图3是超压保护装置的部件分解图。
图4是超压保护装置的部件分解放大示意图。
图5是阀芯的示意图。
图6是本发明应用到咖啡机中的示意图。
具体实施方式
下面结合具体实施例对本发明进行具体描述。
实施例1：如图1至图6所示，一种便携式微型高压咖啡机的超压保护装置，包括泵筒1、泵塞2，泵塞2的主体置于泵筒1内，泵塞设有入水单向阀3、顶孔4、出水孔5，泵筒上设有在入水单向阀 的阀孔的入水端的开口对应处设有入水口6，顶孔4、出水孔5与入水单向阀的阀孔7连通，顶孔4与泵筒1的内部连通，泵塞2上设有在泵筒1的水为高压时进行泄出的泄压结构，还包括将泄压结构所泄出的水回流到泵筒外的排水结构。
入水单向阀的阀孔7内的靠近入水端处设有钢球8，入水单向阀的阀孔内的另一端为堵塞端71。
泄压结构设于堵塞端71；泄压结构为软质橡胶制成的、在高压下可变形的阀芯9，阀芯9外径与入水单向阀的阀孔的堵塞端内径过盈配合；阀芯的头部顶住钢球，阀芯的尾部顶在泵筒1的内侧面。这样的结构，阀芯既起了堵塞的作用，还起到了泄压的作用，结构紧凑，一部件多功能。
排水结构为设于泵筒1下端的缺口10，缺口10与堵塞端的外开口连通，缺口的位置与堵塞端71的外开口位置对应。
像现有常规的结构一样，泵塞的主体的上端采用密封圈与泵筒的内侧面密封，泵塞的主体的下端与泵筒密封。
如图6所示，在应用中，本发明应用在微型咖啡器中，微型咖啡器中包括一压力泵组件，可参考文献专利文献(发明专利申请201310501985.1和发明专利201320655334.3，发明专利申请201310069689.9)。
主体部件300、盒体200、架体100，架体中设有杯101。当主体部件300中的推杆301向下压，当系统(泵筒内)压力较大时，入水单向阀的阀孔内的水向阀芯施加压力，阀芯受到过大压力时变形，外径变小，就与阀孔配合处产生缝隙，多余的水经过缝隙排出泵塞，然后经过排水结构排出泵筒外，使系统压力不会超出要求的范围。达到泄压的目的。本发明体积小，结构简单紧凑，安全可靠，效果稳定。对原来结构改动小，又达到超压保护的作用。解决了微型高压咖啡机的超压保护问题。
又一改进实例为：
阀芯9的尾部设有盲孔11。盲孔11使阀芯9利于变形。
又一改进实例为：
阀芯9的头部其侧面设多个凹部12，凹部12与凹部之间具有筋条13。筋条13可保持它在阀孔7内作可靠的定位导向。
阀芯9的尾部的外边缘设有倒角15。
又一改进实例为：
阀芯9的尾部的端面设有盲孔11，盲孔11轴向延伸到阀芯9的头部中，对应凹部12位置的下方。这样的结构使阀芯9更利于变形。
又一改进实例为：
本例的特点为，泵塞2的主体的上端采用密封圈14与泵筒1的内侧面密封，泵塞2的主体的下端与泵筒1密封。
排水结构由泵塞的主体的外侧面与泵筒的内侧面之间的间隙、所述的入水口6形成，间隙与入水口6连通，间隙与堵塞端71的外开口连通。
当主体部件300中的推杆301向下压，当系统(泵筒内)压力较大时，入水单向阀的阀孔内的水向阀芯施加压力，阀芯受压变形，外径变小，就与阀孔配合处产生缝隙，多余的水经过缝隙排出泵塞，然后经过排水结构排出泵筒外，使系统压力不会超出要求的范围。达到泄压的目的。本例中利用入水口在高压时作为泄压的出口，一口多用，结构紧凑，简单。可以使泄压的水回流到原来装水的容器302，再次利用，不会流入制作咖啡的盒体200影响制作咖啡。其余同上述实施例。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种便携式微型高压咖啡机的超压保护装置，包括泵筒(1)、泵塞(2)，泵塞(2)的主体置于泵筒(1)内，泵塞设有入水单向阀(3)、顶孔(4)、出水孔(5)，泵筒上设有在入水单向阀的阀孔的入水端的开口对应处设有入水口(6)，顶孔、出水孔与入水单向阀的阀孔(7)连通，顶孔(4)与泵筒(1)的内部连通，其特征是：泵塞(2)上设有在泵筒(1)的水为高压时进行泄出的泄压结构，还包括将泄压结构所泄出的水回流到泵筒外的排水结构。
  2. 根据权利要求1所述的便携式微型高压咖啡机的超压保护装置，其特征是：入水单向阀的阀孔内的靠近入水端处设有钢球(8)，入水单向阀的阀孔内的另一端为堵塞端。
  3. 根据权利要求2所述的便携式微型高压咖啡机的超压保护装置，其特征是：泄压结构设于堵塞端；泄压结构为软质橡胶制成的、在高压下可变形的阀芯(9)，阀芯外径与入水单向阀的阀孔的堵塞端内径过盈配合；阀芯的头部顶住钢球，阀芯的尾部顶在泵筒内侧面。
  4. 根据权利要求3所述的便携式微型高压咖啡机的超压保护装置，其特征是：阀芯的尾部设有盲孔(11)。
  5. 根据权利要求3所述的便携式微型高压咖啡机的超压保护装置，其特征是：阀芯的头部其侧面设凹部，凹部与凹部之间具有筋条。
  6. 根据权利要求3所述的便携式微型高压咖啡机的超压保护装置，其特征是：阀芯的尾部的外边缘设有倒角。
  7. 根据权利要求3所述的便携式微型高压咖啡机的超压保护装置，其特征是：阀芯的尾部的端面设有盲孔，盲孔轴向延伸到阀芯的头部中，对应凹部位置的下方。
  8. 根据权利要求2所述的便携式微型高压咖啡机的超压保护装置，其特征是：排水结构由泵塞的主体的外侧面与泵筒的内侧面之间的间隙、所述的入水口形成，间隙与入水口(6)连通，间隙与堵塞端的外开口连通。
  9. 根据权利要求2所述的便携式微型高压咖啡机的超压保护装 置，其特征是：排水结构为设于泵筒下端的缺口(10)，缺口与堵塞端的外开口连通，缺口的位置与堵塞端的外开口位置对应。
  10. 根据权利要求2所述的便携式微型高压咖啡机的超压保护装置，其特征是：泵塞的主体的上端采用密封圈与泵筒的内侧面密封，泵塞的主体的下端与泵筒密封。
PCT/CN2016/112379 2016-12-06 2016-12-27 便携式微型高压咖啡机的超压保护装置 WO2018103153A1 (zh)

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