WO2023155297A1 - Automatic dispensing structure and washing device - Google Patents

Automatic dispensing structure and washing device Download PDF

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Publication number
WO2023155297A1
WO2023155297A1 PCT/CN2022/089441 CN2022089441W WO2023155297A1 WO 2023155297 A1 WO2023155297 A1 WO 2023155297A1 CN 2022089441 W CN2022089441 W CN 2022089441W WO 2023155297 A1 WO2023155297 A1 WO 2023155297A1
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WO
WIPO (PCT)
Prior art keywords
negative pressure
liquid inlet
liquid
pressure sensor
inlet joint
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PCT/CN2022/089441
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French (fr)
Chinese (zh)
Inventor
李爱华
董晶晶
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南京中竞科智能科技有限公司
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Application filed by 南京中竞科智能科技有限公司 filed Critical 南京中竞科智能科技有限公司
Publication of WO2023155297A1 publication Critical patent/WO2023155297A1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents

Definitions

  • the present application relates to the technical field of automatic feeding, for example, to an automatic feeding structure and washing equipment.
  • washing machines, dishwashers, etc. in the related art have applied the automatic detergent injection structure, and the automatic detergent injection structure in the related art mainly uses liquid pumping devices such as piston pumps, peristaltic pumps or Venturi pumps to inject detergent.
  • liquid pumping devices such as piston pumps, peristaltic pumps or Venturi pumps to inject detergent.
  • the liquid level sensing device with the magnetic switch with reed switch and the liquid level float in the drawer box to monitor the residual amount of detergent in the drawer box, so as to remind the user to add detergent to the drawer box in time. Since the drawer box is in the state of detergent for a long time, when the amount of detergent in the drawer box is small, the detergent may solidify and agglomerate. The mixing of detergents will cause peculiar smell, which seriously affects customer satisfaction; and because the above-mentioned liquid level sensing device is directly installed on the detergent box, it is inconvenient to replace the detergent box, and the cost of replacing the detergent box is relatively high.
  • the liquid inlet of the pumping device is detachably connected to replace containers with variable volumes for holding various detergents, such as boxed, canned or bagged structure, the replacement container can be disassembled regularly for cleaning, or replaced with a new one;
  • the outlet of the replacement container is connected to the inlet of the pumping device through the liquid inlet joint, and a negative pressure sensor that communicates with the controller of the washing device is installed on the washing device, and an external connection is used.
  • the pipe connects the sensing end of the negative pressure sensor and the liquid inlet joint.
  • the replacement container When the pumping device is working, the replacement container is in a state of slight negative pressure, and the external atmospheric pressure squeezes the variable-volume replacement container, so that the detergent in the replacement container can be pumped into the washing equipment by the pumping device.
  • the detergent in the replacement container is continuously consumed.
  • the pressure value in the negative pressure pipeline will change suddenly.
  • the pressure detected by the negative pressure sensor reaches the set threshold, confirm the detergent in the replacement container. After consumption, the washing equipment will give an alarm to prompt the user to replace the replacement container or add detergent to the replacement container.
  • the negative pressure pipeline is long, and the existence of air in the negative pressure pipeline will cause the pressure detected by the negative pressure sensor to not reach the set value when the detergent in the replacement container is consumed. , so that the user cannot replace the replacement container in time or add detergent to the replacement container, which affects the accuracy of the detergent dosage.
  • the present application provides an automatic dosing structure and washing equipment, which occupy a small space and can improve the accuracy of detergent dosing.
  • An automatic feeding structure including a liquid pumping device, the liquid pumping device includes a liquid inlet joint, which is set to be detachably connected to the outlet end of a variable-volume container; a negative pressure sensor and a negative pressure pipeline, and the negative pressure sensor is installed on the On the pumping device, the sensing end of the negative pressure sensor is connected to the liquid inlet joint through the negative pressure pipeline, and the negative pressure sensor is configured to detect the pressure in the negative pressure pipeline to determine the volume The amount of liquid remaining in the variable container.
  • Fig. 1 is an exploded schematic diagram of an automatic delivery structure using a single-channel peristaltic pump and a resistance strain gauge negative pressure sensor provided by an embodiment of the present application;
  • Fig. 2 is an exploded schematic diagram of an automatic delivery structure using a single-channel peristaltic pump and a mechanical negative pressure sensor provided by an embodiment of the present application;
  • Fig. 3 is an exploded schematic diagram of an automatic delivery structure using a dual-channel peristaltic pump and a resistance strain gauge negative pressure sensor provided by an embodiment of the present application;
  • Fig. 4 is an exploded schematic diagram of an automatic delivery structure using a dual-channel peristaltic pump and a mechanical negative pressure sensor provided by an embodiment of the present application.
  • Negative pressure pipeline 31. Negative pressure section; 32. Connecting section;
  • the present embodiment provides an automatic feeding structure and washing equipment.
  • the washing equipment includes the above-mentioned automatic feeding structure, and liquid detergent is fed into washing equipment such as washing machines and dishwashers through the automatic feeding structure.
  • the liquid detergent can be laundry detergent, softener, dishwashing liquid, disinfectant, etc., which are determined according to specific washing equipment and washing requirements, and are not specifically limited here.
  • the automatic dispensing structure includes a liquid pumping device 1, which is configured to dispense the detergent in the volume-variable container into the washing equipment.
  • the pumping device 1 can be a peristaltic pump, or a piston pump, or a variable volume cavity pump, or a Venturi pump, etc.
  • the pumping device 1 is a peristaltic pump, as shown in Figure 1, the peristaltic pump is a single Peristaltic pump.
  • the peristaltic pump can also be a dual-channel peristaltic pump. Specifically select the type of peristaltic pump according to the structure of the washing equipment.
  • the liquid pumping device 1 includes a liquid inlet joint 11, the two ends of the liquid inlet joint 11 are the liquid inlet end and the liquid outlet end respectively, and the liquid inlet end is set to be detachably connected to the outlet end of the variable volume container.
  • the liquid outlet is connected with the inlet of the peristaltic tube of the peristaltic pump.
  • Variable volume containers can be bottled, canned, bagged or bag-in-bottle structures with variable volumes, and the variable volume containers can be removed regularly for cleaning, or directly replaced with new variable volume containers to ensure Cleanability of variable volume containers.
  • the liquid inlet end of the liquid inlet connector 11 is inserted into the outlet end of the variable volume container, and a seal is provided between the liquid inlet end of the liquid inlet connector 11 and the outlet end of the variable volume container.
  • the liquid inlet end of the liquid inlet joint 11 can be inserted into the outlet end of the volume variable container, and the outlet end of the volume variable container can also be inserted into the liquid inlet end of the liquid inlet joint 11 .
  • the liquid inlet end of the liquid inlet joint 11 is inserted into the outlet end of the variable volume container.
  • the above-mentioned automatic delivery structure also includes a negative pressure sensor 2, the negative pressure sensor 2 is installed on the pumping device 1, the sensing end of the negative pressure sensor 2 is connected with a negative pressure pipeline 3, the negative pressure pipeline 3 is connected to the liquid inlet joint 11, and the negative pressure The sensor 2 is set to detect the pressure in the negative pressure pipe 3 to determine the liquid residual in the variable volume container.
  • the negative pressure sensor 2 is installed on the pumping device 1 to shorten the length of the negative pressure pipeline 3 connecting the sensing end of the negative pressure sensor 2 to the liquid inlet joint 11, so as to avoid the use of the liquid in the variable volume container.
  • the influence of relatively much air in the negative pressure pipeline 3 on the detection result of the negative pressure sensor 2 improves the accuracy of the measurement result. Compared with related technologies, the occupied space of the automatic delivery structure is reduced.
  • the type of negative pressure sensor 2 adopts the resistance strain gauge type negative pressure sensor shown in Fig. 1 and Fig. 3; Can also adopt the mechanical type negative pressure sensor shown in Fig. 2 and Fig. 4; Besides In addition, other types of negative pressure sensors 2 can also be used, which will not be illustrated here.
  • the liquid pumping device 1 further includes a housing 10 , and the negative pressure sensor 2 is fixedly connected to the housing 10 .
  • the fixing method between the negative pressure sensor 2 and the housing 10 it may be fixed by fasteners such as screws, clamped or other fixing methods, which are not specifically limited here.
  • the negative pressure sensor 2 is fixedly installed on the outer top wall of the housing 10 .
  • the negative pressure pipeline 3 includes a negative pressure section 31 and a connecting section 32, wherein the first end of the negative pressure section 31 is connected to the sensing end of the negative pressure sensor 2, and the first end of the connecting section 32 is connected to the negative pressure
  • the second end of the pressure section 31 and the second end of the connection section 32 are connected to the liquid inlet joint 11 .
  • a negative pressure section 31 with a small aperture is usually used; and in order to facilitate the connection of the connecting section 32 to the liquid inlet joint 11, the aperture of the connecting section 32 is usually larger than the negative pressure section 31. aperture.
  • the liquid pumping device 1 When the liquid inlet connector 11 is plugged into the outlet end of the variable volume container, the liquid pumping device 1 is usually not working, so that the variable volume container and the liquid inlet connector 11 form a closed cavity. During the plugging process, the closed cavity The volume will decrease, so that the airtight chamber is in a positive pressure state, and the detergent in the liquid inlet joint 11 may enter the negative pressure section 31.
  • the negative pressure section 31 of the negative pressure sensor 2 has a smaller aperture, and the washing After the detergent enters the negative pressure section 31, the inner wall of the negative pressure section 31 will have residual detergent and condense on the inner wall of the negative pressure section 31. After the detergent enters the negative pressure section 31 for many times, the detergent condensed on the inner wall of the negative pressure section 31 will The increasing thickness will easily cause the negative pressure section 31 to be blocked, thereby making the negative pressure sensor 2 invalid.
  • the liquid inlet joint 11 is connected with a protective structure 4, and the protective structure 4 has a protective chamber, and the liquid inlet joint 11 communicates with the negative pressure pipeline 3 through the protective chamber; the protective structure 4 is located at the liquid inlet joint 11 above, the volume of the protective cavity is greater than or equal to the volume change caused when the outlet end of the volume variable container is plugged into the liquid inlet end of the liquid inlet joint 11 .
  • the resulting volume change is roughly equal to the space occupied by the solid structure of the liquid inlet end inserted into the outlet end of the variable volume container .
  • the volume of the protective cavity is greater than the volume change caused when the outlet end of the volume-variable container is plugged into the liquid inlet end of the liquid inlet joint 11 .
  • the volume change caused by plugging the outlet end of the variable volume container and the liquid inlet end of the liquid inlet joint 11 will make the airtight chamber be in a positive pressure state, but by limiting the volume of the protective chamber, the detergent At most, it will be squeezed into the protective cavity, but will not enter the negative pressure section 31, so as to avoid the negative pressure section 31 from being blocked.
  • the protective structure 4 is a pipeline structure.
  • the aperture of the protective structure 4 is required to be larger than the aperture of the negative pressure section 31.
  • the connecting section 32 and the negative pressure section 31 are integrally formed.
  • the protective structure 4 and the connecting section 32 are clamped, and the protective structure 4 and the connecting section 32 is sealed and connected to prevent air leakage from the contact surface between the protective structure 4 and the connecting section 32, causing inaccurate detection results of the negative pressure sensor 2.
  • the connecting section 32 can also be omitted, and the negative pressure section 31 can be directly connected to the protective structure 4 .
  • the above-mentioned automatic feeding structure also includes a liquid outlet joint 12 and a connecting plate 13, wherein the two ends of the liquid outlet joint 12 are respectively set to connect the outlet of the peristaltic tube and the feeding port of the washing equipment; the connecting plate 13 is fixedly connected In the housing 10 , the liquid outlet connector 12 and the liquid inlet connector 11 are fixedly connected to the connecting plate 13 .
  • the connection board 13 is engaged with the housing 10 . In one embodiment, as shown in FIG.
  • the housing 10 when the pumping device 1 is a single-channel peristaltic pump, the housing 10 includes an upper housing and a lower housing, the lower housing is provided with a card slot, and the lower end of the connecting plate 13 Insert into the card slot, the upper shell and the lower shell are fixedly connected, and the upper shell is pressed against the upper end surface of the connecting plate 13, so as to limit the connecting plate 13 along the axial and vertical direction of the liquid inlet pipe section, The connecting board 13 is clamped to the housing 10 .
  • the connecting board 13 is clamped to the housing 10 .
  • the casing 10 when the pumping device 1 is a two-way peristaltic pump, the casing 10 includes an upper casing and a lower casing, and there are two connecting plates 13, which are respectively denoted as upper and lower casings.
  • the connecting plate and the lower connecting plate, the upper connecting plate and the upper casing are plugged in the vertical direction
  • the lower connecting plate and the lower casing are plugged in the vertical direction
  • the upper connecting plate and the lower connecting plate are plugged in the vertical direction, realizing
  • the upper connecting plate and the lower connecting plate are limited along the axial and vertical directions of the liquid inlet pipe section, so as to clamp the connecting plate 13 to the housing 10 .
  • liquid outlet connector 12, the liquid inlet connector 11 and the connecting plate 13 are integrated to simplify assembly, reduce liquid leakage points, and improve processing efficiency.
  • the above-mentioned automatic delivery structure can not only be used for washing equipment, to inject detergent into the washing equipment, but also can be used for other structures that need to be automatically delivered, such as for adding the essential oil in the variable-volume container for aromatherapy to the aromatherapy bottle medium.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

An automatic dispensing structure and a washing device. The automatic dispensing structure comprises a liquid pumping apparatus, a negative pressure pipeline, and a negative pressure sensor. The liquid pumping apparatus comprises a liquid inlet connector and is configured to detachably connect to an outlet end of a variable volume container. The negative pressure sensor is mounted on the liquid pumping apparatus, a sensing end of the negative pressure sensor is connected to the liquid inlet connector by means of the negative pressure pipeline, and the negative pressure sensor is configured to detect the pressure in the negative pressure pipeline so as to determine a residual amount of liquid in the variable volume container.

Description

自动投放结构及洗涤设备Automatic feeding structure and washing equipment
本申请要求申请日为2022年2月21日、申请号为202220346300.5的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application with a filing date of February 21, 2022 and application number 202220346300.5, the entire contents of which are incorporated herein by reference.
技术领域technical field
本申请涉及自动投放技术领域，例如涉及一种自动投放结构及洗涤设备。The present application relates to the technical field of automatic feeding, for example, to an automatic feeding structure and washing equipment.
背景技术Background technique
相关技术中的洗衣机、洗碗机等都应用了洗涤剂自动投放结构，且相关技术中的洗涤剂自动投放结构主要是利用活塞泵、蠕动泵或文丘里泵等抽液装置投放洗涤剂，同时利用带有干簧管的磁性开关与抽屉盒中的液位浮子相配合的液位感应装置，监测抽屉盒中的洗涤剂残余量，以提醒用户及时向抽屉盒中添加洗涤剂。由于抽屉盒长时间处于有洗涤剂的状态，在抽屉盒内的洗涤剂量较少时，洗涤剂可能会凝固结块，长时间如此下去，不仅造成洗涤剂的浪费，还可能会因各种洗涤剂的混合而产生异味，严重影响客户满意度；而且由于上述液位感应装置直接安装在洗涤剂盒上，造成洗涤剂盒更换不便，且更换洗涤剂盒的成本较大。Washing machines, dishwashers, etc. in the related art have applied the automatic detergent injection structure, and the automatic detergent injection structure in the related art mainly uses liquid pumping devices such as piston pumps, peristaltic pumps or Venturi pumps to inject detergent. Use the liquid level sensing device with the magnetic switch with reed switch and the liquid level float in the drawer box to monitor the residual amount of detergent in the drawer box, so as to remind the user to add detergent to the drawer box in time. Since the drawer box is in the state of detergent for a long time, when the amount of detergent in the drawer box is small, the detergent may solidify and agglomerate. The mixing of detergents will cause peculiar smell, which seriously affects customer satisfaction; and because the above-mentioned liquid level sensing device is directly installed on the detergent box, it is inconvenient to replace the detergent box, and the cost of replacing the detergent box is relatively high.
相关技术中，采用以下技术方案解决上述技术问题：抽液装置的进液口可拆卸连接用于盛放各种洗涤剂且容积可变的替换容器，如盒装、或罐装或袋装的结构，可以定期将替换容器拆卸下来进行清洗，或者换新；替换容器的出口通过进液接头与抽液装置的进口连通，在洗涤设备安装与洗涤设备的控制器通讯的负压传感器，采用外接管道连接负压传感器的感应端和进液接头。在抽液装置工作时，替换容器中呈微负压状态，外界大气压挤压容积可变的替换容器，使替换容器中的洗涤剂能够被抽液装置抽送至洗涤设备中，随着替换容器中的洗涤剂不断被消耗，在替换容器中洗涤剂被消耗完毕时，负压管道内的压力值会发生突变，在负压传感器检测到的压力达到设定阈值时，确认替换容器中的洗涤剂消耗完毕，洗涤设备会进行报警，以提示用户需要更换替换容器或向替换容器中添加洗涤剂。In the related art, the following technical solutions are adopted to solve the above-mentioned technical problems: the liquid inlet of the pumping device is detachably connected to replace containers with variable volumes for holding various detergents, such as boxed, canned or bagged structure, the replacement container can be disassembled regularly for cleaning, or replaced with a new one; the outlet of the replacement container is connected to the inlet of the pumping device through the liquid inlet joint, and a negative pressure sensor that communicates with the controller of the washing device is installed on the washing device, and an external connection is used. The pipe connects the sensing end of the negative pressure sensor and the liquid inlet joint. When the pumping device is working, the replacement container is in a state of slight negative pressure, and the external atmospheric pressure squeezes the variable-volume replacement container, so that the detergent in the replacement container can be pumped into the washing equipment by the pumping device. The detergent in the replacement container is continuously consumed. When the detergent in the replacement container is consumed, the pressure value in the negative pressure pipeline will change suddenly. When the pressure detected by the negative pressure sensor reaches the set threshold, confirm the detergent in the replacement container. After consumption, the washing equipment will give an alarm to prompt the user to replace the replacement container or add detergent to the replacement container.
由于负压传感器和抽液装置分体设置造成负压管道较长，负压管道内空气的存在，会造成替换容器中的洗涤剂消耗完毕时，负压传感器检测到的压力尚 未达到设定值，以致用户不能及时更换替换容器或向替换容器中添加洗涤剂，影响洗涤剂投放量的准确性。Due to the separate arrangement of the negative pressure sensor and the pumping device, the negative pressure pipeline is long, and the existence of air in the negative pressure pipeline will cause the pressure detected by the negative pressure sensor to not reach the set value when the detergent in the replacement container is consumed. , so that the user cannot replace the replacement container in time or add detergent to the replacement container, which affects the accuracy of the detergent dosage.
由于将负压传感器的感应端连接于进液接头的负压管道较长，会增大自动投放结构的体积，且安装不便。Since the negative pressure pipeline connecting the sensing end of the negative pressure sensor to the liquid inlet joint is long, the volume of the automatic feeding structure will be increased, and the installation is inconvenient.
发明内容Contents of the invention
本申请提供了一种自动投放结构及洗涤设备，占用空间小，能够提高洗涤剂投放量的准确性。The present application provides an automatic dosing structure and washing equipment, which occupy a small space and can improve the accuracy of detergent dosing.
一种自动投放结构，包括抽液装置，所述抽液装置包括进液接头，设置为可拆卸连接于容积可变容器的出口端；负压传感器及负压管道，所述负压传感器安装在所述抽液装置上，所述负压传感器的感应端通过所述负压管道连接于所述进液接头，所述负压传感器设置为检测所述负压管道内的压力以确定所述容积可变容器内的液体残留量。An automatic feeding structure, including a liquid pumping device, the liquid pumping device includes a liquid inlet joint, which is set to be detachably connected to the outlet end of a variable-volume container; a negative pressure sensor and a negative pressure pipeline, and the negative pressure sensor is installed on the On the pumping device, the sensing end of the negative pressure sensor is connected to the liquid inlet joint through the negative pressure pipeline, and the negative pressure sensor is configured to detect the pressure in the negative pressure pipeline to determine the volume The amount of liquid remaining in the variable container.
附图说明Description of drawings
图1是本申请一实施例提供的采用单路蠕动泵和电阻应变片式负压传感器的自动投放结构的***示意图；Fig. 1 is an exploded schematic diagram of an automatic delivery structure using a single-channel peristaltic pump and a resistance strain gauge negative pressure sensor provided by an embodiment of the present application;
图2是本申请一实施例提供的采用单路蠕动泵和机械式负压传感器的自动投放结构的***示意图；Fig. 2 is an exploded schematic diagram of an automatic delivery structure using a single-channel peristaltic pump and a mechanical negative pressure sensor provided by an embodiment of the present application;
图3是本申请一实施例提供的采用双路蠕动泵和电阻应变片式负压传感器的自动投放结构的***示意图；Fig. 3 is an exploded schematic diagram of an automatic delivery structure using a dual-channel peristaltic pump and a resistance strain gauge negative pressure sensor provided by an embodiment of the present application;
图4是本申请一实施例提供的采用双路蠕动泵和机械式负压传感器的自动投放结构的***示意图。Fig. 4 is an exploded schematic diagram of an automatic delivery structure using a dual-channel peristaltic pump and a mechanical negative pressure sensor provided by an embodiment of the present application.
图中：In the picture:
1、抽液装置；11、进液接头；12、出液接头；13、连接板；1. Pumping device; 11. Liquid inlet joint; 12. Liquid outlet joint; 13. Connection plate;
2、负压传感器；2. Negative pressure sensor;
3、负压管道；31、负压段；32、连接段；3. Negative pressure pipeline; 31. Negative pressure section; 32. Connecting section;
4、防护结构。4. Protective structure.
10、壳体。10. Shell.
具体实施方式Detailed ways
如图1所示，本实施例提供了一种自动投放结构及洗涤设备，洗涤设备包括 上述自动投放结构，通过自动投放结构为洗涤设备如洗衣机、洗碗机等投放液体洗涤剂。液体洗涤剂可以是洗衣液、柔顺剂、洗碗液、消毒剂等，根据具体的洗涤设备以及洗涤需求确定，在此不再具体限定。As shown in Figure 1, the present embodiment provides an automatic feeding structure and washing equipment. The washing equipment includes the above-mentioned automatic feeding structure, and liquid detergent is fed into washing equipment such as washing machines and dishwashers through the automatic feeding structure. The liquid detergent can be laundry detergent, softener, dishwashing liquid, disinfectant, etc., which are determined according to specific washing equipment and washing requirements, and are not specifically limited here.
该自动投放结构包括抽液装置1，抽液装置1设置为将容积可变容器中的洗涤剂投放至洗涤设备中。抽液装置1可以是蠕动泵、或活塞泵、或变容积腔泵、或文丘里泵等，在一实施例中，抽液装置1为蠕动泵，如图1所示，蠕动泵为单路蠕动泵，于其他实施例中，如图3和图4所示，蠕动泵还可以为双路蠕动泵。具体根据洗涤设备的结构选择蠕动泵的类型。The automatic dispensing structure includes a liquid pumping device 1, which is configured to dispense the detergent in the volume-variable container into the washing equipment. The pumping device 1 can be a peristaltic pump, or a piston pump, or a variable volume cavity pump, or a Venturi pump, etc. In one embodiment, the pumping device 1 is a peristaltic pump, as shown in Figure 1, the peristaltic pump is a single Peristaltic pump. In other embodiments, as shown in FIG. 3 and FIG. 4 , the peristaltic pump can also be a dual-channel peristaltic pump. Specifically select the type of peristaltic pump according to the structure of the washing equipment.
抽液装置1包括进液接头11，进液接头11的两端分别为进液端和出液端，进液端设置为可拆卸连接于容积可变容器的出口端，对于蠕动泵而言，出液端与蠕动泵的蠕动管进口相连。容积可变容器可以为瓶装、罐装、袋装或瓶中袋等容积可变的结构，可以定期拆下容积可变容器以对其进行清理，或者直接更换新的容积可变容器，以保证容积可变容器的清洁性。The liquid pumping device 1 includes a liquid inlet joint 11, the two ends of the liquid inlet joint 11 are the liquid inlet end and the liquid outlet end respectively, and the liquid inlet end is set to be detachably connected to the outlet end of the variable volume container. The liquid outlet is connected with the inlet of the peristaltic tube of the peristaltic pump. Variable volume containers can be bottled, canned, bagged or bag-in-bottle structures with variable volumes, and the variable volume containers can be removed regularly for cleaning, or directly replaced with new variable volume containers to ensure Cleanability of variable volume containers.
本实施例中，进液接头11的进液端和容积可变容器的出口端插接，且进液接头11的进液端和容积可变容器的出口端之间设有密封件。可以将进液接头11的进液端***容积可变容器的出口端内，也可以将容积可变容器出口端***进液接头11的进液端内。在一实施例中，进液接头11的进液端***容积可变容器的出口端。In this embodiment, the liquid inlet end of the liquid inlet connector 11 is inserted into the outlet end of the variable volume container, and a seal is provided between the liquid inlet end of the liquid inlet connector 11 and the outlet end of the variable volume container. The liquid inlet end of the liquid inlet joint 11 can be inserted into the outlet end of the volume variable container, and the outlet end of the volume variable container can also be inserted into the liquid inlet end of the liquid inlet joint 11 . In one embodiment, the liquid inlet end of the liquid inlet joint 11 is inserted into the outlet end of the variable volume container.
上述自动投放结构还包括负压传感器2，负压传感器2安装在抽液装置1上，负压传感器2的感应端连接有负压管道3，负压管道3连接于进液接头11，负压传感器2设置为检测负压管道3内的压力以确定容积可变容器内的液体残留量。The above-mentioned automatic delivery structure also includes a negative pressure sensor 2, the negative pressure sensor 2 is installed on the pumping device 1, the sensing end of the negative pressure sensor 2 is connected with a negative pressure pipeline 3, the negative pressure pipeline 3 is connected to the liquid inlet joint 11, and the negative pressure The sensor 2 is set to detect the pressure in the negative pressure pipe 3 to determine the liquid residual in the variable volume container.
本实施例将负压传感器2安装在抽液装置1上，以缩短将负压传感器2的感应端连接于进液接头11的负压管道3的长度，避免在容积可变容器内的液体用完时负压管道3内相对多的空气对负压传感器2检测结果的影响，提高了测量结果的准确性。相比相关技术而言，减小了自动投放结构的占用空间。In this embodiment, the negative pressure sensor 2 is installed on the pumping device 1 to shorten the length of the negative pressure pipeline 3 connecting the sensing end of the negative pressure sensor 2 to the liquid inlet joint 11, so as to avoid the use of the liquid in the variable volume container. The influence of relatively much air in the negative pressure pipeline 3 on the detection result of the negative pressure sensor 2 improves the accuracy of the measurement result. Compared with related technologies, the occupied space of the automatic delivery structure is reduced.
在一实施例中，负压传感器2的类型采用图1和图3中所示的电阻应变片式负压传感器；还可以采用图2和图4所示的机械式负压传感器；除此之外，还可以其他类型的负压传感器2，在此不再举例说明。In one embodiment, the type of negative pressure sensor 2 adopts the resistance strain gauge type negative pressure sensor shown in Fig. 1 and Fig. 3; Can also adopt the mechanical type negative pressure sensor shown in Fig. 2 and Fig. 4; Besides In addition, other types of negative pressure sensors 2 can also be used, which will not be illustrated here.
在一实施例中，抽液装置1还包括壳体10，负压传感器2固定连接于壳体10。至于负压传感器2和壳体10之间的固定方式，可以是螺钉等紧固件固定、卡接等固定方式，在此不再具体限定。In one embodiment, the liquid pumping device 1 further includes a housing 10 , and the negative pressure sensor 2 is fixedly connected to the housing 10 . As for the fixing method between the negative pressure sensor 2 and the housing 10 , it may be fixed by fasteners such as screws, clamped or other fixing methods, which are not specifically limited here.
由于壳体10内安装空间的限制，本实施例将负压传感器2固定安装于壳体10外顶壁。Due to the limitation of the installation space in the housing 10 , in this embodiment, the negative pressure sensor 2 is fixedly installed on the outer top wall of the housing 10 .
在一实施例中，负压管道3包括负压段31和连接段32，其中，负压段31的第一端连接于负压传感器2的感应端，连接段32的第一端连接于负压段31的第二端，连接段32的第二端连接于进液接头11。为了便于在负压段31内形成负压，通常会采用小孔径的负压段31；而为了便于将连接段32连接于进液接头11，通常会使连接段32的孔径大于负压段31的孔径。In one embodiment, the negative pressure pipeline 3 includes a negative pressure section 31 and a connecting section 32, wherein the first end of the negative pressure section 31 is connected to the sensing end of the negative pressure sensor 2, and the first end of the connecting section 32 is connected to the negative pressure The second end of the pressure section 31 and the second end of the connection section 32 are connected to the liquid inlet joint 11 . In order to facilitate the formation of negative pressure in the negative pressure section 31, a negative pressure section 31 with a small aperture is usually used; and in order to facilitate the connection of the connecting section 32 to the liquid inlet joint 11, the aperture of the connecting section 32 is usually larger than the negative pressure section 31. aperture.
在将进液接头11与容积可变容器的出口端插接时，抽液装置1通常是不工作的，使容积可变容器和进液接头11形成一个密闭腔，插接过程中，密闭腔的容积会减小，使密闭腔内呈正压状态，进液接头11内的洗涤剂可能会进入负压段31内，相关技术中负压传感器2的负压段31的孔径较小，洗涤剂进入负压段31内后，负压段31的内壁将会残留洗涤剂并凝结在负压段31的内壁，洗涤剂多次进入负压段31后，负压段31内壁凝结的洗涤剂厚度不断增加，极易造成负压段31被堵塞，从而使负压传感器2失效。When the liquid inlet connector 11 is plugged into the outlet end of the variable volume container, the liquid pumping device 1 is usually not working, so that the variable volume container and the liquid inlet connector 11 form a closed cavity. During the plugging process, the closed cavity The volume will decrease, so that the airtight chamber is in a positive pressure state, and the detergent in the liquid inlet joint 11 may enter the negative pressure section 31. In the related art, the negative pressure section 31 of the negative pressure sensor 2 has a smaller aperture, and the washing After the detergent enters the negative pressure section 31, the inner wall of the negative pressure section 31 will have residual detergent and condense on the inner wall of the negative pressure section 31. After the detergent enters the negative pressure section 31 for many times, the detergent condensed on the inner wall of the negative pressure section 31 will The increasing thickness will easily cause the negative pressure section 31 to be blocked, thereby making the negative pressure sensor 2 invalid.
为了解决上述技术问题，本实施例中，进液接头11连接有防护结构4，防护结构4具有防护腔，进液接头11通过防护腔与负压管道3连通；防护结构4位于进液接头11的上方，防护腔的容积大于等于将容积可变容器的出口端和进液接头11的进液端插接时引起的容积变化。在一实施例中，进液接头11的进液端***容积可变容器的出口端时，所引起的容积变化大致等于***容积可变容器的出口端内的进液端的实体结构所占用的空间。在一实施例中，防护腔的容积大于将容积可变容器的出口端和进液接头11的进液端插接时引起的容积变化。In order to solve the above-mentioned technical problems, in this embodiment, the liquid inlet joint 11 is connected with a protective structure 4, and the protective structure 4 has a protective chamber, and the liquid inlet joint 11 communicates with the negative pressure pipeline 3 through the protective chamber; the protective structure 4 is located at the liquid inlet joint 11 above, the volume of the protective cavity is greater than or equal to the volume change caused when the outlet end of the volume variable container is plugged into the liquid inlet end of the liquid inlet joint 11 . In one embodiment, when the liquid inlet end of the liquid inlet joint 11 is inserted into the outlet end of the variable volume container, the resulting volume change is roughly equal to the space occupied by the solid structure of the liquid inlet end inserted into the outlet end of the variable volume container . In one embodiment, the volume of the protective cavity is greater than the volume change caused when the outlet end of the volume-variable container is plugged into the liquid inlet end of the liquid inlet joint 11 .
虽然将容积可变容器的出口端和进液接头11的进液端插接时引起的容积变化，会使密闭腔内呈正压状态，但通过对防护腔的容积大小进行限定，使洗涤剂至多被挤压进入防护腔内，而不会进入负压段31内，从而避免负压段31被堵塞。Although the volume change caused by plugging the outlet end of the variable volume container and the liquid inlet end of the liquid inlet joint 11 will make the airtight chamber be in a positive pressure state, but by limiting the volume of the protective chamber, the detergent At most, it will be squeezed into the protective cavity, but will not enter the negative pressure section 31, so as to avoid the negative pressure section 31 from being blocked.
本实施例中，防护结构4为管道结构，为了避免采用细长管作为防护结构4时凝结在防护腔内壁的洗涤剂堵塞防护结构4，要求防护结构4的孔径大于负压段31的孔径。In this embodiment, the protective structure 4 is a pipeline structure. In order to avoid the detergent condensed on the inner wall of the protective cavity from blocking the protective structure 4 when using a slender tube as the protective structure 4, the aperture of the protective structure 4 is required to be larger than the aperture of the negative pressure section 31.
本实施例中，连接段32和负压段31一体成型，为了便于连接段32和防护结构4之间的拆装，将防护结构4和连接段32卡接，并将防护结构4和连接段32密封连接，以防止从防护结构4和连接段32的接触面之间漏气，造成负压传感器2的 检测结果不准确。于其他实施例中，还可以取消连接段32，将负压段31直接连接于防护结构4。In this embodiment, the connecting section 32 and the negative pressure section 31 are integrally formed. In order to facilitate the disassembly and assembly between the connecting section 32 and the protective structure 4, the protective structure 4 and the connecting section 32 are clamped, and the protective structure 4 and the connecting section 32 is sealed and connected to prevent air leakage from the contact surface between the protective structure 4 and the connecting section 32, causing inaccurate detection results of the negative pressure sensor 2. In other embodiments, the connecting section 32 can also be omitted, and the negative pressure section 31 can be directly connected to the protective structure 4 .
在一实施例中，上述自动投放结构还包括出液接头12和连接板13，其中，出液接头12的两端分别设置为连接蠕动管的出口和洗涤设备的投放口；连接板13固定连接于壳体10，出液接头12和进液接头11固定连接于连接板13。在一实施例中，连接板13和壳体10卡接。在一实施例中，如图1所示，在抽液装置1为单路蠕动泵时，壳体10包括上壳体和下壳体，下壳体上设有卡槽，连接板13的下端***卡槽内，上壳体和下壳体固定连接，并使上壳体抵压于连接板13的上端面，实现沿进液管段的轴向、竖直方向对连接板13进行限位，以将连接板13卡接于壳体10。于其他实施例中，如图3和图4所示，在抽液装置1为双路蠕动泵时，壳体10包括上壳体和下壳体，连接板13具有两个，分别记为上连接板和下连接板，上连接板和上壳体沿竖直方向插接，下连接板和下壳体沿竖直方向插接，上连接板和下连接板沿竖直方向插接，实现沿进液管段的轴向、竖直方向对上连接板和下连接板进行限位，以将连接板13卡接于壳体10。In one embodiment, the above-mentioned automatic feeding structure also includes a liquid outlet joint 12 and a connecting plate 13, wherein the two ends of the liquid outlet joint 12 are respectively set to connect the outlet of the peristaltic tube and the feeding port of the washing equipment; the connecting plate 13 is fixedly connected In the housing 10 , the liquid outlet connector 12 and the liquid inlet connector 11 are fixedly connected to the connecting plate 13 . In one embodiment, the connection board 13 is engaged with the housing 10 . In one embodiment, as shown in FIG. 1 , when the pumping device 1 is a single-channel peristaltic pump, the housing 10 includes an upper housing and a lower housing, the lower housing is provided with a card slot, and the lower end of the connecting plate 13 Insert into the card slot, the upper shell and the lower shell are fixedly connected, and the upper shell is pressed against the upper end surface of the connecting plate 13, so as to limit the connecting plate 13 along the axial and vertical direction of the liquid inlet pipe section, The connecting board 13 is clamped to the housing 10 . In other embodiments, as shown in Fig. 3 and Fig. 4, when the pumping device 1 is a two-way peristaltic pump, the casing 10 includes an upper casing and a lower casing, and there are two connecting plates 13, which are respectively denoted as upper and lower casings. The connecting plate and the lower connecting plate, the upper connecting plate and the upper casing are plugged in the vertical direction, the lower connecting plate and the lower casing are plugged in the vertical direction, and the upper connecting plate and the lower connecting plate are plugged in the vertical direction, realizing The upper connecting plate and the lower connecting plate are limited along the axial and vertical directions of the liquid inlet pipe section, so as to clamp the connecting plate 13 to the housing 10 .
本实施例中，出液接头12、进液接头11和连接板13一体设置，简化装配，减少漏液点，提高加工效率。In this embodiment, the liquid outlet connector 12, the liquid inlet connector 11 and the connecting plate 13 are integrated to simplify assembly, reduce liquid leakage points, and improve processing efficiency.
上述自动投放结构不仅可以用于洗涤设备，向洗涤设备内投放洗涤剂，还可以用于其他需要进行自动投放的结构，如用于将盛放香薰的容积可变容器中的精油投放至香薰瓶中等。The above-mentioned automatic delivery structure can not only be used for washing equipment, to inject detergent into the washing equipment, but also can be used for other structures that need to be automatically delivered, such as for adding the essential oil in the variable-volume container for aromatherapy to the aromatherapy bottle medium.
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplification of the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific orientation construction and operation, therefore should not be construed as limiting the application. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two different positions.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

Claims (10)

  1. 一种自动投放结构，包括：An automated serving structure comprising:
    抽液装置(1)，所述抽液装置(1)包括进液接头(11)，并设置为可拆卸连接于容积可变容器的出口端；A liquid pumping device (1), the liquid pumping device (1) includes a liquid inlet joint (11), and is configured to be detachably connected to the outlet port of the variable-volume container;
    负压传感器(2)及负压管道(3)，所述负压传感器(2)安装在所述抽液装置(1)上，所述负压传感器(2)的感应端通过所述负压管道(3)连接于所述进液接头(11)，所述负压传感器(2)设置为检测所述负压管道(3)内的压力以确定所述容积可变容器内的液体残留量。A negative pressure sensor (2) and a negative pressure pipeline (3), the negative pressure sensor (2) is installed on the pumping device (1), and the sensing end of the negative pressure sensor (2) passes through the negative pressure The pipeline (3) is connected to the liquid inlet joint (11), and the negative pressure sensor (2) is set to detect the pressure in the negative pressure pipeline (3) to determine the residual liquid in the variable volume container .
  2. 根据权利要求1所述的自动投放结构，其中，所述容积可变容器的出口端和所述进液接头(11)的进液端插接；所述自动投放结构还包括：The automatic dispensing structure according to claim 1, wherein the outlet end of the variable-volume container is plugged into the liquid inlet end of the liquid inlet joint (11); the automatic dispensing structure further comprises:
    防护结构(4)，所述防护结构(4)设有防护腔，所述进液接头(11)通过所述防护腔与所述负压管道(3)连通；所述防护结构(4)位于所述进液接头(11)的上方，所述防护腔的容积大于等于将所述容积可变容器的出口端和所述进液接头(11)的进液端插接时引起的容积变化。A protective structure (4), the protective structure (4) is provided with a protective cavity, and the liquid inlet joint (11) communicates with the negative pressure pipeline (3) through the protective cavity; the protective structure (4) is located Above the liquid inlet joint (11), the volume of the protective cavity is greater than or equal to the volume change caused when the outlet end of the variable volume container is plugged into the liquid inlet end of the liquid inlet joint (11).
  3. 根据权利要求2所述的自动投放结构，其中，所述防护结构(4)为管道结构，所述负压管道(3)包括：The automatic release structure according to claim 2, wherein the protective structure (4) is a pipeline structure, and the negative pressure pipeline (3) comprises:
    负压段(31)，所述负压段(31)的第一端连接于所述负压传感器(2)的感应端，所述负压段(31)的孔径小于所述防护结构(4)的孔径；A negative pressure section (31), the first end of the negative pressure section (31) is connected to the sensing end of the negative pressure sensor (2), and the aperture of the negative pressure section (31) is smaller than that of the protective structure (4 ) aperture;
    连接段(32)，所述连接段(32)的第一端连接于所述负压段(31)的第二端，所述连接段(32)的第二端连接于所述防护结构(4)，所述负压段(31)的孔径小于所述连接段(32)的孔径。A connection section (32), the first end of the connection section (32) is connected to the second end of the negative pressure section (31), and the second end of the connection section (32) is connected to the protective structure ( 4), the aperture of the negative pressure section (31) is smaller than the aperture of the connection section (32).
  4. 根据权利要求3所述的自动投放结构，其中，所述防护结构(4)与所述进液接头(11)一体成型。The automatic dispensing structure according to claim 3, wherein, the protective structure (4) is integrally formed with the liquid inlet joint (11).
  5. 根据权利要求3所述的自动投放结构，其中，所述抽液装置(1)还包括壳体(10)，所述负压传感器(2)固定连接于所述壳体(10)外壁。The automatic dispensing structure according to claim 3, wherein the liquid pumping device (1) further comprises a housing (10), and the negative pressure sensor (2) is fixedly connected to the outer wall of the housing (10).
  6. 根据权利要求5所述的自动投放结构，还包括：The automatic delivery structure according to claim 5, further comprising:
    出液接头(12)，所述出液接头(12)设置为连接洗涤设备的投放口；及A liquid outlet joint (12), the liquid outlet joint (12) is set to connect to the insertion port of the washing equipment; and
    连接板(13)，所述连接板(13)固定连接于所述壳体(10)，所述出液接头(12)和所述进液接头(11)固定连接于所述连接板(13)。A connecting plate (13), the connecting plate (13) is fixedly connected to the housing (10), the liquid outlet joint (12) and the liquid inlet joint (11) are fixedly connected to the connecting plate (13 ).
  7. 根据权利要求6所述的自动投放结构，其中，所述出液接头(12)、所述进液接头(11)和所述连接板(13)一体设置。The automatic dispensing structure according to claim 6, wherein the liquid outlet joint (12), the liquid inlet joint (11) and the connecting plate (13) are integrally arranged.
  8. 根据权利要求6所述的自动投放结构，其中，所述连接板(13)与所述壳 体(10)卡接。The automatic delivery structure according to claim 6, wherein, the connecting plate (13) is engaged with the housing (10).
  9. 根据权利要求1所述的自动投放结构，其中，所述抽液装置(1)为蠕动泵、或活塞泵、或变容积腔泵、或文丘里泵。The automatic dispensing structure according to claim 1, wherein the liquid pumping device (1) is a peristaltic pump, or a piston pump, or a variable volume cavity pump, or a Venturi pump.
  10. 一种洗涤设备，包括权利要求1至9任一项所述的自动投放结构。A washing machine, comprising the automatic feeding structure according to any one of claims 1-9.
PCT/CN2022/089441 2022-02-21 2022-04-27 Automatic dispensing structure and washing device WO2023155297A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102735292A (en) * 2012-06-18 2012-10-17 北京遥测技术研究所 Differential pressure type flow rate measuring device
US20150240802A1 (en) * 2012-09-14 2015-08-27 Vapourtec Limited Pump
CN108049119A (en) * 2017-12-28 2018-05-18 青岛海尔滚筒洗衣机有限公司 Detergent throwing device, method and washing machine
CN114059317A (en) * 2021-12-21 2022-02-18 南京中竞科智能科技有限公司 Automatic feeding device and washing equipment for treating agent in container with variable volume
CN215906424U (en) * 2021-09-30 2022-02-25 南京中竞科智能科技有限公司 Treating agent feeding device with volume-variable container and washing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102735292A (en) * 2012-06-18 2012-10-17 北京遥测技术研究所 Differential pressure type flow rate measuring device
US20150240802A1 (en) * 2012-09-14 2015-08-27 Vapourtec Limited Pump
CN108049119A (en) * 2017-12-28 2018-05-18 青岛海尔滚筒洗衣机有限公司 Detergent throwing device, method and washing machine
CN215906424U (en) * 2021-09-30 2022-02-25 南京中竞科智能科技有限公司 Treating agent feeding device with volume-variable container and washing machine
CN114059317A (en) * 2021-12-21 2022-02-18 南京中竞科智能科技有限公司 Automatic feeding device and washing equipment for treating agent in container with variable volume

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