CN214911025U - Automatic liquid adding device and aromatherapy machine - Google Patents

Abstract

The utility model provides an automatic liquid adding device and an aromatherapy machine, wherein the automatic liquid adding device comprises a power part, a connecting part, a conveying part and a liquid storage part which are connected in sequence; the power part comprises a driving motor, a transmission gear, a transmission rack and an air bag which are connected in sequence; the driving motor can drive gear is rotatory, drive gear can drive the rack translation of transmission, the rack of transmission can be through translation tensile or compression the gasbag, change the volume of gasbag, the conveying part can pass through the volume change of gasbag is inhaled or is discharged liquid, automatic liquid feeding device and champignon machine have simple structure, the convenient advantage of assembly.

Description

Automatic liquid adding device and aromatherapy machine

Technical Field

The utility model relates to a fluid conveying device, in particular to automatic liquid feeding device and champignon machine.

Background

In daily life, it is often necessary to transfer a liquid from one location (or container) to another in fixed or variable quantities to meet the needs of use or storage. As in the aromatherapy machine, essential oil in an essential oil bottle needs to be added into a water tank of the aromatherapy machine so as to be conveniently diffused into an indoor space through the aromatherapy machine.

The existing methods for adding essential oil by an aromatherapy machine mainly comprise manual and automatic methods, and the manual addition of essential oil has the defects of low automation degree, inaccurate determination of the addition amount, frequent addition of essential oil and the like, and is gradually eliminated by the market; the essential oil is automatically added, the essential oil in the essential oil bottle is conveyed to the water tank of the aromatherapy machine through the power equipment to realize the automatic addition of the essential oil, but the structures of the existing automatic liquid adding device and the aromatherapy machine, particularly the structures of the power part are very complex, and the essential oil is not convenient to manufacture and assemble.

The present application is proposed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an automatic liquid feeding device and champignon machine to a simple structure, be convenient for make and the automatic liquid feeding device and the champignon machine of assembly are provided.

In order to solve the problems, the utility model discloses an automatic liquid adding device and an aromatherapy machine, wherein the automatic liquid adding device comprises a power part, a connecting part, a conveying part and a liquid storage part which are connected in sequence; the power part comprises a driving motor, a transmission gear, a transmission rack and an air bag which are connected in sequence; the driving motor can drive the transmission gear to rotate, the transmission gear can drive the transmission rack to translate, the transmission rack can stretch or compress the air bag through translation and change the volume of the air bag, and the conveying part can suck or discharge liquid through the volume change of the air bag.

Further, an output shaft of the driving motor is connected with the transmission gear, and the driving motor can drive the transmission gear to rotate clockwise or anticlockwise; the transmission gear is meshed with the transmission rack and can drive the transmission rack to move horizontally towards or away from the air bag; one end of the air bag is connected with the transmission rack, and the other end of the air bag is communicated with the conveying part through the connecting part.

Further, the transmission gear is a circular gear or a sector gear.

Furthermore, the power part also comprises a first air guide bent pipe, one end of the first air guide bent pipe is communicated with the inner space of the air bag, and the other end of the first air guide bent pipe is communicated with the conveying part through the connecting part.

Furthermore, the power part also comprises a first shell and a second shell, and the first shell and the second shell are buckled together oppositely to form an accommodating space of the power part.

Furthermore, the transmission gear, the transmission rack and the air bag are positioned in an accommodating space formed by the first shell and the second shell, and the driving motor penetrates through the first shell or the second shell and then is connected with the transmission gear.

Furthermore, one end of the air bag is connected with the transmission rack, and the other end of the air bag is fixed on the first shell and/or the second shell.

Furthermore, a plurality of support plates are arranged on the transmission rack at intervals, and the support plates are in contact with the first shell and/or the second shell.

Furthermore, a limiting boss is arranged on the first shell and/or the second shell, and the limiting boss can limit the transmission rack.

An aromatherapy machine, the aromatherapy machine is provided with the automatic liquid adding device.

The application automatic liquid feeding device and champignon machine have simple structure, assemble convenient advantage.

Drawings

FIG. 1 is a schematic front view of the automatic liquid feeding device of the present invention;

FIG. 2 is a schematic view of a first three-dimensional structure of the automatic liquid feeding device of the present invention;

FIG. 3 is a schematic diagram of a second three-dimensional structure of the automatic liquid feeding device of the present invention;

FIG. 4 is a schematic top view of the automatic liquid feeding device of the present invention;

FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 4;

fig. 6 is a schematic bottom view of the upper cover of the present invention;

fig. 7 is a schematic view of a first three-dimensional structure of the upper cover of the present invention;

fig. 8 is a schematic view of a second three-dimensional structure of the upper cover of the present invention;

fig. 9 is a schematic view of a first three-dimensional structure of the lower cover of the present invention;

fig. 10 is a schematic view of a second three-dimensional structure of the lower cover of the present invention;

fig. 11 is a front view of the outer tube according to the present invention;

fig. 12 is a schematic perspective view of the outer tube according to the present invention;

fig. 13 is a schematic top view of the outer sleeve according to the present invention;

fig. 14 is a schematic perspective view of the backflow prevention member of the present invention;

fig. 15 is a schematic front view of the backflow prevention member of the present invention;

fig. 16 is a schematic perspective view of the power unit according to the present invention (without the outer casing);

fig. 17 is another schematic perspective view of the power unit according to the present invention (including an outer casing).

Description of reference numerals:

1. a power section; 101. a drive motor; 102. a transmission gear; 103. a drive rack; 104. an air bag; 105. a first housing; 106. a second housing; 107. a first gas guiding elbow; 108. a support plate; 108a, a first supporting plate; 108b, a second support plate; 109. a limiting boss; 2. a connecting portion; 201. a gas delivery pipe; 202. a first elbow; 203. a second elbow; 3. a conveying section; 301. an upper cover; 3011. an upper cover body; 3012. a first side wall; 3013. a first gas transfer port; 3014. a liquid outlet channel; 3015. a second limit post; 3016. a second air guiding elbow; 302. a lower cover; 3021. a lower cover body; 3022. a second side wall; 3023. a central column; 3024. a bypass port; 3025. a bypass pipe; 3026. a flange; 3027. a first limit post; 303. an anti-reflux member; 3031. an expansion end; 3032. a contracting end; 3033. a second gas transfer port; 304. an outer sleeve; 304a, a first outer sleeve; 304b, a second outer sleeve; 3041. an accommodating chamber; 3042. a communicating hole; 3043. flanging; 305. a stop ball; 305a, a first stop ball; 305b, a second stop ball; 306. a bottle cap; 307. a liquid storage area; 4. a liquid storage part; 401. a liquid storage bottle; 402. an infusion catheter.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

As shown in fig. 1-17, an automatic liquid adding device, including power portion 1, connecting portion 2, conveying part 3 and the stock solution portion 4 that connect gradually, power portion 1 is including the CD-ROM drive motor 101, drive gear 102, transmission rack 103 and the gasbag 104 that connect gradually, CD-ROM drive motor 101 can drive gear 102 is rotatory, drive gear 102 can drive the translation of transmission rack 103, drive rack 103 can be through the translation tensile or compress gasbag 104 in order to change the volume of gasbag 104, conveying part 3 can pass through the volume change of gasbag 104 is inhaled liquid in the stock solution portion 4 or to outside liquid device discharge liquid, realizes automatic liquid adding.

Specifically, as shown in fig. 16 and 17, an output shaft of the driving motor 101 is connected to the transmission gear 102, so that the driving motor 101 can drive the transmission gear 102 to synchronously rotate clockwise or counterclockwise; the transmission gear 102 is meshed with the transmission rack 103, so that the transmission gear 102 can drive the transmission rack 103 to translate towards a direction close to or away from the air bag 104, one end of the air bag 104 is connected with the transmission rack 103, the other end of the air bag is connected with the conveying part 3 through the connecting part 2, the air bag 104 can be stretched or compressed by the movement of the transmission rack 103, and the air bag 104 is compressed when the transmission gear 102 drives the transmission rack 103 to move towards a side close to the air bag 104; when the transmission gear 102 drives the transmission rack 103 to move to a side far away from the air bag 104, the air bag 104 is stretched; when the air bag 104 is stretched, the air bag 104 can suck out the gas in the transportation part 3 through the connection part 2, so that the liquid in the liquid storage part 4 enters the transportation part 3; when the air bag 104 is compressed, the air bag 104 can blow air into the conveying portion 3 through the connecting portion 2 to discharge the liquid in the conveying portion 3.

As some embodiments of the present application, the transmission gear 102 may be a single circular gear for transmission, or may be a gear train formed by a plurality of circular gears engaged with each other, and the number of gears of the gear train is not limited, and only the gear train may drive the transmission rack 103 to translate. Preferably, the driving gear 102 is a single circular gear, so that the automatic liquid adding device has a simple structure and is easy to manufacture and assemble.

As some embodiments of the present application, the driving gear 102 may also be a sector gear, provided that the requirement of driving the driving rack 103 to translate towards or away from the air bag 104 to sufficiently stretch or compress the air bag 104 is satisfied.

Further, the length and the number of teeth of the transmission rack 103 are set such that the air bag 104 can be sufficiently stretched or compressed.

Further, as shown in fig. 1 to 5 and 17, the power unit 1 further includes a first housing 105 and a second housing 106, and the first housing 105 and the second housing 106 are buckled to each other to form an accommodating space of the power unit 1. Through the arrangement of the first shell 105 and the second shell 106, the power part 1 can be separated from other components, the reciprocating motion of the power part 1 is prevented from being interfered by other components, and the power part 1 has an independent and stable working interval.

As some embodiments of the present application, as shown in fig. 17, the driving gear 102, the driving rack 103 and the air bag 104 are located in the accommodating space formed by the first housing 105 and the second housing 106, and the driving motor 101 is connected to the driving gear 102 after passing through the first housing 105 or the second housing 106, so that the driving motor 101 is disposed outside the accommodating space formed by the first housing 105 and the second housing 106, thereby facilitating the rapid heat dissipation of the driving motor 101.

As some embodiments of the present application, mounting components of the power unit 1, such as a connecting lug, a screw post, a screw hole, and the like, for connecting the power unit 1 with other components or mounting the power unit 1, are integrally formed on the first housing 105 and/or the second housing 106.

Further, power portion 1 still includes first air guide return bend 107, the one end of first air guide return bend 107 with the inner space of gasbag 104 is linked together, and the other end passes through connecting portion 2 with conveying portion 3 is linked together, the setting of first air guide return bend 107 makes power portion 1 can conveniently with connecting portion 2 assemble together or with it with connecting portion 2 unpacks apart. Preferably, the first gas directing elbow 107 is fabricated from a hard material.

Furthermore, one end of the airbag 104 is connected to the transmission rack 103, and the other end is fixed to the first housing 105 and/or the second housing 106, so that when the airbag 104 is stretched or compressed, the end of the airbag 104 connected to the transmission rack 103 can move freely, and the other end is fixed.

Further, a plurality of supporting plates 108 are arranged on the transmission rack 103 at intervals, and the supporting plates 108 can support, guide and limit the translation of the transmission rack 103.

Preferably, one side or both sides of the supporting plate 108 are respectively in contact with the first housing 105 and/or the second housing 106, the supporting plate 108 is supported and limited by the first housing 105 and/or the second housing 106, and the translation of the driving rack 103 is supported, guided and limited by the supporting plate 108.

Furthermore, a limiting boss 109 of the transmission rack 103 is arranged on the first housing 105 and/or the second housing 106, and the limiting boss 109 can guide and limit the translation of the transmission rack 103.

Preferably, at least two support plates 108 are arranged on the driving rack 103 at intervals, wherein the support plate 108 closest to the airbag 104 is referred to as a first support plate 108a, and the support plate 108 farthest from the airbag 104 is referred to as a second support plate 108b, when the airbag 104 is fully stretched, the first support plate 108a can contact with the limit boss 109, and the stretching end point of the airbag 104 is limited by the cooperation of the first support plate 108a and the limit boss 109, at this time, the driving motor 101 changes the rotation method, and the driving rack 103 stops translating in the direction away from the airbag 104; when the airbag 104 is completely compressed, the second supporting plate 108b can contact with the limiting mechanism on the first housing 105 and/or the second housing 106, the compression end point of the airbag 104 is limited by the second supporting plate 108b, at this time, the driving motor 101 changes the rotation method again, and the transmission rack 103 stops translating in the direction approaching the airbag 104.

As some embodiments of the present application, it is also possible to provide support structures such as hard pipes at two ends of the airbag 104, respectively, and as the airbag 104 is compressed and when the support structures such as hard pipes at two ends of the airbag 104 are in contact, the airbag 104 is completely compressed, and at this time, the driving motor 101 changes the rotation method, and the driving rack 103 stops translating in the direction approaching the airbag 104.

As some embodiments of the present application, the first housing 105 and the second housing 106 may be symmetrically disposed on both sides of the power part 1; the second housing 106 may be disposed asymmetrically on the periphery of the power unit 1, for example, the first housing 105 forms an accommodating space of the power unit 1, and the second housing is a cover covering the first housing 105 and closes the accommodating space formed by the first housing 105.

In conclusion, it is easy to find that the power part 1 of the automatic liquid feeding device has the advantages of simple structure and convenient control and use.

Example 2

The utility model provides an automatic liquid adding device, includes power portion 1, connecting portion 2, conveying part 3 and the stock solution portion 4 that connects gradually, conveying part 3 includes upper cover 301 and lower cover 302, upper cover 301 and lower cover 302 are buckled relatively and have been formed stock solution district 307 together, stock solution district 307 through first check valve with stock solution portion 4 is linked together, and is linked together through second check valve and outside liquid device, in addition, stock solution district 307 still through connecting portion 2 with power portion 1 is linked together, stock solution district 307 can pass through power portion 1 adjusts internal pressure to regulate and control the state of opening and shutting of first check valve and second check valve, and then inhale liquid in the stock solution portion 4 or to outside liquid device discharges liquid.

This application is through setting up conveying part 3 between outside with liquid device and stock solution portion 4 for indirect intercommunication between outside with liquid device and the stock solution portion 4, the liquid inequality in the outside with liquid device to spread in the stock solution portion 4, pollute surplus liquid in the stock solution portion 4. Further, when the liquid storage region 307 sucks the liquid in the liquid storage portion 4, the first check valve is opened, and the second check valve is closed; when the liquid storage region 307 discharges liquid to an external liquid consuming device, the first check valve is closed and the second check valve is opened. In the use, first check valve and second check valve are not opened simultaneously, can make stock solution portion 4 and outside with liquid device not simultaneously with stock solution district 307 intercommunication, can further effectively avoid the liquid in the outside with liquid device to spread in stock solution portion 4.

Specifically, the power unit 1 can suck out the gas in the liquid storage region 307 or blow the gas into the liquid storage region 307 to adjust the gas pressure in the liquid storage region 307; when the power part 1 sucks the gas in the liquid storage area 307, the pressure of the gas in the liquid storage area 307 is reduced, the first one-way valve is automatically opened under the action of the pressure difference between two sides of the first one-way valve, the second one-way valve is closed, so that the liquid storage area 307 is communicated with the liquid storage part 4, and the liquid in the liquid storage part 4 can be sucked into the liquid storage area 307 by the power part 1; when the power part 1 blows gas into the liquid storage area 307, the gas pressure in the liquid storage area 307 is increased, the first one-way valve is closed, and the second one-way valve is automatically opened under the action of the pressure difference between the two sides of the first one-way valve, so that the liquid storage area 307 is communicated with an external liquid using device, and the liquid in the liquid storage part 4 can be blown into the external liquid using device by the power part 1, so that automatic liquid adding is realized.

The structure of the power unit 1 is the same as that of embodiment 1, and will not be described herein.

Further, as shown in fig. 4, the connecting portion 2 includes an air pipe 201, a first elbow 202 and a second elbow 203, one end of the air pipe 201 is communicated with the first air guide elbow 107 through the first elbow 202, and then is communicated with the airbag 104 through the first air guide elbow 107, and the other end is communicated with the liquid storage area 307 through the second elbow 203, preferably, the air pipe 201 is a hose, so that the relative positions of the power portion 1 and the conveying portion 3 can be properly adjusted, and installation is facilitated. More preferably, the first bend 202 and the second bend 203 are made of hard material, so that the connecting part 2 is in communication with the power part 1 and the conveying part 3, respectively.

Further, as shown in fig. 6 to 8, the upper cover 301 includes an upper cover body 3011 and a first side wall 3012, a second air guide bent pipe 3016 is disposed on the upper cover body 3011, one end of the second air guide bent pipe 3016 is communicated with the air pipe 201 through a second elbow 203, the other end of the second air guide bent pipe 3016 extends into the liquid storage region 307, and a first air transmission port 3013 is formed at an end portion of the second air guide bent pipe, and the power portion 1 can suck out the gas in the liquid storage region 307 or blow the gas into the liquid storage region 307 through the first air transmission port 3013. Preferably, the second gas guiding elbow 3016 is inserted into the upper portion of the liquid storage region 307 through the upper cover 3011, so that the first gas transmission port 3013 is located at the upper portion of the liquid storage region 307. The first air transfer port 3013 is disposed at the upper portion of the liquid storage region 307, so that the first air transfer port 3013 can effectively prevent the liquid in the liquid storage region 307 from being sucked out.

Further, as shown in fig. 9 to 10, the lower cover 302 includes a lower cover body 3021 and a second side wall 3022, a central column 3023 is disposed on the lower cover body 3021, a through hole is disposed on the central column 3023, one end of the through hole on the central column 3023 is communicated with the liquid storage area 307, and the other end is communicated with the liquid storage portion 4.

As some embodiments of the present application, as shown in fig. 5, the upper cover 301 and the lower cover 302 are buckled together to form the liquid storage area 307, the upper cover 3011 forms an upper end surface of the liquid storage area 307, the lower cover 3021 forms a lower end surface of the liquid storage area 307, and the first side wall 3012 and the second side wall 3022 are overlapped and sleeved together to form a side wall of the liquid storage area 307. In this application, the first side wall 3012 may be located inside the second side wall 3022, or may be located outside the second side wall 3022, and only by overlapping and sleeving the first side wall 3012 and the second side wall 3022 together, the side wall of the liquid storage region 307 may be formed, and at the same time, the sealing performance of the liquid storage region 307 may be improved. Preferably, the first side wall 3012 is located inside the second side wall 3022, so that the gap between the first side wall 3012 and the second side wall 3022 can be made more tortuous and better in sealing performance, and at the same time, the space between the first side wall 3012 and the second stopper post 3015 can be further reduced, and the volume of the upper cover 3011 can be reduced.

Further, the first side wall 3012 and the second side wall 3022 are cylindrical structures with hollow interiors.

Further, a liquid storage part 4 is arranged below the lower cover 302, the liquid storage part 4 comprises a liquid storage bottle 401 and an infusion catheter 402, one end of the infusion catheter 402 is inserted below the liquid level in the liquid storage bottle 401, and the other end of the infusion catheter is communicated with the liquid storage area 307 through the central column 3023.

Further, a bottle cap 306 is arranged between the liquid storage bottle 401 and the lower cover 302, the bottle cap 306 covers the mouth of the liquid storage bottle 401, and the upper end surface of the bottle cap 306 contacts with the lower end surface of the lower cover 302, so that the bottle cap 306 can support the lower cover 302. On one hand, the bottle cap 306 serves to cover the bottle mouth of the liquid storage bottle 401, and also serves as a support seat of the lower cover 302, so that the lower cover 302 is stably mounted and can be stably connected with the liquid storage bottle 401.

Further, the first check valve and the second check valve are respectively formed by a check ball 305 arranged on the liquid flow channel, the check ball 305 is a round hard ball, and the cross-sectional area of the check ball 305 is larger than that of the liquid flow channel where the check ball is located, so that the liquid flow channel can be blocked by the check ball 305, and liquid cannot flow.

Specifically, the liquid flow channel includes a liquid suction channel and a liquid discharge channel, the liquid suction channel communicates the liquid storage region 307 with the liquid storage bottle 401, and the liquid discharge channel communicates the liquid storage region 307 with an external liquid device; the check ball 305 comprises a first check ball 305a forming the first one-way valve and a second check ball 305b forming the second one-way valve, and the first check ball 305a is positioned on the liquid suction channel and used for controlling the on-off of the liquid suction channel; the second ball 305b is located on the liquid discharge channel to control the on/off of the liquid discharge channel.

Furthermore, the first one-way valve and the second one-way valve further include an outer sleeve 304 disposed on the periphery of the check ball 305, the outer sleeve 304 is composed of an upper section and a lower section of cylinders or cones with different structures, wherein the upper section of cylinders or cones is hollow inside and forms a containing cavity 3041 with a cross-sectional area slightly larger than that of the check ball 305, and the check ball 305 can move up and down in the containing cavity 3041; the lower cylindrical or conical table is provided with a communication hole 3042 in the axial direction thereof, and the cross-sectional area of the communication hole 3042 is smaller than that of the check ball 305, so that the check ball 305 can block the communication hole 3042.

Preferably, the outer sleeve 304 is a stepped truncated cone structure with a gradually decreasing cross-sectional area from top to bottom, and meanwhile, the cross-sectional area of the accommodating cavity 3041 is also gradually decreasing from top to bottom, but the communication hole 3042 may be a circular hole with a constant cross-sectional area or a gradually increasing cross-sectional area from top to bottom.

Specifically, the outer sleeve 304 includes a first outer sleeve 304a positioned around the first check ball 305a and a second outer sleeve 304b positioned around the second check ball 305 b.

Furthermore, the outer sleeve 304 has a flange 3043 extending outward, and the flange 3043 can be used for mounting the outer sleeve 304 and closing the mounting gap. Of course, besides the outer sleeve 304 can guide and limit the stop ball 305 through the receiving cavity 3041, the whole outer sleeve 304 can also play a role in filling the installation gap and improving the sealing performance through interference fit with the adjacent components.

Furthermore, a limiting column may be further disposed inside the outer sleeve 304, the limiting column extends into the accommodating cavity 3041 from the upper end of the outer sleeve 304, the stop ball 305 is located between the lower end surface of the limiting column and the upper end surface of the communication hole 3042, the stop ball 305 is limited by the limiting column, and when the stop ball 305 moves upward to the limiting column, the stop ball is blocked by the limiting column and cannot move upward.

As some embodiments of the present application, a spring may be further disposed above the check ball 305, and the spring enables the check ball 305 to more tightly block the liquid suction channel and the liquid discharge channel, and at the same time, after the check ball 305 moves upwards to the end point, the spring assists the check ball 305 to move downwards and rapidly return to the natural state. Specifically, the spring may be disposed around the limiting column, and in a natural state, the lower end of the spring contacts with the check ball 305, so as to block the check ball 305 on the liquid suction channel and the liquid discharge channel; when the check ball 305 moves upward, the spring is compressed, and when the check ball 305 moves upward to the end point, the check ball 305 can be quickly restored to the natural state by the restoring force of the spring.

Preferably, as shown in fig. 6 to 10, a through hole for liquid to flow through is formed in the limiting column, a plurality of protruding support legs are arranged at one end of the stopping ball 305, the support legs are adjacent to the one end of the stopping ball 305, a gap for liquid to flow through is formed between two adjacent support legs, the support legs avoid the through hole for liquid to flow through on the limiting column, the stopping ball 305 can be limited by the support legs, but the stopping ball 305 cannot block the through hole for liquid to flow through on the limiting column, and when the stopping ball 305 contacts with the limiting column, liquid can pass through the gap for liquid to flow through between two adjacent support legs and the through hole for liquid to flow through on the limiting column to pass through the limiting column.

Specifically, the limiting posts include a first limiting post 3027 and a second limiting post 3015, and after the assembly is completed, the second limiting post 3015 is located in the first outer sleeve 304a, and the second limiting post 3015 is located in the second outer sleeve 304 b.

As some embodiments of the present application, as shown in fig. 5, the central pillar 3023 is formed on the upper side of the lower cover 3021 and is disposed along the axial direction of the second sidewall 3022, the first restraining pillar 3027 is formed on the lower side of the lower cover 3021, and the central pillar 3023 and the first restraining pillar 3027 may be integrally formed with the lower cover 3021. Through holes for liquid to flow through are respectively formed in the axial direction of the central column 3023 and the axial direction of the first limiting column 3027, and the through holes for liquid to flow through on the central column 3023 and the first limiting column 3027 are mutually communicated. A first stop ball 305a is arranged at the upper end of the infusion catheter 402, a first outer sleeve 304a is arranged on the periphery of the first stop ball 305a, the first limiting column 3027 is inserted into the accommodating cavity 3041 of the first outer sleeve 304a from the upper end of the first outer sleeve 304a, the first stop ball 305a is positioned below the first limiting column 3027, and the first stop ball 305a is accommodated in the accommodating cavity 3041 of the first outer sleeve 304 a. The first outer sleeve 304a penetrates through the bottle cap 306, the flange 3043 of the first outer sleeve 304a is clamped on the upper side of the bottle cap 306, and the main body of the first outer sleeve 304a is filled in the gap between the bottle cap 306 and the first positioning column 3027 as well as the infusion catheter 402, and the gap is filled and sealed in a manner of interference fit and the like.

Specifically, the working process of the first check valve is as follows: the first stop ball 305a is located at the lower end of the first limit column 3027 and the upper end of the through hole at the lower section of the first outer sleeve 304a, and naturally, the first stop ball 305a blocks the upper end of the through hole at the lower section of the first outer sleeve 304a by its own weight, so that it cannot communicate with the through hole on the first limit column 3027 through which the liquid flows, and further cannot communicate with the liquid storage area 307. When the power part 1 sucks the gas in the liquid storage area 307, the gas pressure in the liquid storage area 307 is reduced, the gas pressure in the liquid storage area 307 is continuously reduced along with the continuous operation of the power part 1, and the gas pressure in the liquid storage bottle 401 is unchanged, because the pressure of the first check ball 305a close to the liquid storage area 307 is lower than the pressure of the first check ball 305a close to the liquid conveying pipe 402, the first check ball 305a is subjected to an upward acting force, and when the gas pressure in the liquid storage area 307 is reduced to a certain degree, so that the upward acting force applied to the first check ball 305a is larger than the self gravity, the first check ball 305a moves upwards to be away from the upper end of the lower through hole of the first outer sleeve 304a, the lower through hole of the first outer sleeve 304a is opened, so that the liquid in the liquid storage bottle 401 sequentially passes through the liquid conveying pipe 402, the liquid conveying pipe 402, The lower through hole of the first outer sleeve 304a, the first position-limiting post 3027 and the through hole of the central post 3023 through which the liquid flows are sucked into the liquid storage area 307, and it can be seen that the liquid suction channel is composed of the infusion tube 402, the lower through hole of the first outer sleeve 304a, the first position-limiting post 3027 and the through hole of the central post 3023 through which the liquid flows; when the power part 1 blows gas into the liquid storage area 307, the gas pressure in the liquid storage area 307 rises, the upward acting force applied to the first check ball 305a is gradually reduced due to the gradual rise of the pressure of the first check ball 305a on the side close to the liquid storage area 307, and when the upward acting force applied to the first check ball 305a is smaller than the gravity of the first check ball, the first check ball 305a moves downwards under the action of the gravity to close the upper end of the lower through hole of the first outer sleeve 304a again, so that the liquid in the liquid storage bottle 401 cannot enter the liquid storage area 307, and the liquid storage area 307 sucks the liquid.

Further, as shown in fig. 5 to 10, the liquid storage area 307 further has a bypass port 3024, the bypass port 3024 is located at a lower portion of the liquid storage area 307, and the bypass port 3024 communicates with an external liquid device through a bypass pipe 3025.

Further, the bypass port 3024 is formed at a lower portion of the lower cover 302, the bypass pipe 3025 communicates with the bypass port 3024, and the bypass pipe 3025 is disposed in parallel with the liquid storage region 307. Correspondingly, a liquid outlet channel 3014 is arranged on one side of the upper cover 301, one end of the liquid outlet channel 3014 extends into the external liquid consuming device and is communicated with the external liquid consuming device, a second limiting column 3015 is arranged on the other end of the liquid outlet channel 3014, a through hole for liquid to flow through is arranged on the second limiting column 3015, and the through hole for liquid to flow through on the second limiting column 3015 is communicated with the liquid outlet channel 3014.

As shown in fig. 5 to 10, when the upper cover 301 and the lower cover 302 are relatively snapped together, the second limit post 3015 can be inserted into the bypass pipe 3025, the second stop ball 305b is located in the bypass pipe 3025, a second outer sleeve 304b is disposed on the periphery of the second stop ball 305b, the second limit post 3015 is inserted into the receiving cavity 3041 in the second outer sleeve 304b from the upper end of the second outer sleeve 304b, the second stop ball 305b is located below the second limit post 3015, and the second stop ball 305b is received in the receiving cavity 3041 in the second outer sleeve 304 b. The flange 3043 of the second outer sleeve 304b is clamped on the upper portion of the bypass pipe 3025, and the main body of the second outer sleeve 304b is filled in the gap between the bypass pipe 3025 and the second limiting post 3015, and the gap is filled and sealed in an interference fit manner or the like. The through hole of the lower section of the second outer sleeve 304b is communicated with the bypass port 3024 through the bypass pipe 3025. That is, the bypass port 3024, the bypass pipe 3025, the second outer sleeve 304b, the second stopper 3015, and the liquid outlet channel 3014 are connected in sequence to form a liquid outlet channel.

Specifically, the working process of the second check valve is as follows: the second stop ball 305b is located at the lower end of the second limit column 3015 and the upper end of the lower section through hole of the second outer sleeve 304b, and in a natural state, the second stop ball 305b is plugged at the upper end of the lower section through hole of the second outer sleeve 304b by virtue of self gravity, so that the lower section through hole of the second outer sleeve 304b cannot be communicated with the through hole, through which liquid flows, of the second limit column 3015, and further cannot be communicated with an external liquid consumption device. When the power part 1 sucks the gas in the liquid storage area 307, the gas pressure in the liquid storage area 307 is reduced, so that the pressure of the second check ball 305b close to the liquid storage area 307 is lower than the pressure of the second check post 3015, and at this time, the second check ball 305b is subjected to a downward acting force to tightly block the upper end of the through hole at the lower section of the second outer sleeve 304b, so as to block the communication between an external liquid device and the liquid storage area 307. When the power unit 1 blows gas into the liquid storage area 307, the gas pressure in the liquid storage area 307 rises, so that the pressure of the second check ball 305b close to the liquid storage area 307 is higher than the pressure of the second check ball 3015, at this time, the second check ball 305b receives an upward force, and as the power unit 1 continues to blow gas into the liquid storage area 307, when the upward force received by the second check ball 305b is higher than its own weight, the second check ball 305b moves upward and separates from the upper end of the lower through hole of the second outer sleeve 304b, so that the bypass port 3024 can be communicated with an external liquid device sequentially through the bypass pipe 3025, the second outer sleeve 304b, the second check ball 3015 and the liquid outlet channel 3014, and further the liquid in the liquid storage area 307 can be communicated with an external liquid device sequentially through the bypass pipe 3025, the second check ball 305b and the liquid outlet channel 3014, The second outer sleeve 304b, the second limiting post 3015 and the liquid outlet channel 3014 are discharged to an external liquid device, so that the liquid is discharged. On the other hand, in the process, when the power part 1 starts to blow gas into the liquid storage area 307, the gas pressure in the liquid storage area 307 will gradually increase, and once the upward acting force applied to the first check ball 305a is smaller than the gravity before the gas pressure in the liquid storage area 307 is equal to the pressure in the liquid storage bottle 401, the first check ball 305a will move downward under the action of its own gravity and tightly block the upper end of the lower through hole of the first outer sleeve 304a, so that the liquid in the liquid storage bottle 401 cannot enter the liquid storage area 307. It can be seen that, in the process of blowing gas into the liquid storage area 307 by the power unit 1, the first check ball 305a first falls and closes the liquid suction channel, and then, the power unit 1 needs to continue to blow gas into the liquid storage area 307 to lift the second check ball 305b and open the liquid discharge channel, that is, in the process of blowing gas into the liquid storage area 307 by the power unit 1, the first valve and the second valve are not opened at the same time; similarly, when the power part 1 sucks the gas in the liquid storage region 307, the second valve is always subjected to a downward acting force and is always kept in a closed state; the first valve may be opened after a period of time after the power section 1 has inhaled air, and the first and second valves have likewise not been opened simultaneously.

Further, the central column 3023 is vertically disposed in the lower cover 302, and the upper end of the central column 3023 protrudes out of the lower cover 3021, so that the liquid in the liquid storage area 307 can be prevented from flowing back and entering the liquid storage bottle 401, and the contamination of the remaining liquid in the liquid storage portion 4 is further avoided.

Further, as shown in fig. 5 and 9, the central column 3023 has an upper end surface and an annular side wall, and a liquid discharge port is disposed at a connection position of the upper end surface and the annular side wall, the liquid discharge port is communicated with a through hole for passing liquid in the central column 3023, and the liquid discharge port is disposed such that the liquid entering the liquid storage area 307 through the central column 3023 is not easily sucked out of the liquid storage area 307 through the first gas transmission port 3013 by the motive portion 1.

Further, a flange 3026 is further disposed at an upper end of the second sidewall 3022, when the upper cover 301 and the lower cover 302 are relatively snapped together, the flange 3026 abuts against an edge of the upper cover body 3011 of the upper cover 301, and the upper cover 301 and the lower cover 302 can be tightly coupled together via the flange 3026.

Further, as shown in fig. 5 and 14 to 15, a backflow prevention member 303 is further disposed in the liquid storage region 307, the backflow prevention member 303 includes an upper expansion end 3031 and a lower contraction end 3032, a cross-sectional area of the expansion end 3031 is larger than a cross-sectional area of the contraction end 3032, the expansion end 3031 is hollow, a second gas transmission port 3033 through which gas flows is disposed on the contraction end 3032, one end of the second gas transmission port 3033 is communicated with a hollow cavity in the expansion end 3031, and the other end of the second gas transmission port 3033 is communicated with the liquid storage region 307. After the backflow-preventing member 303 is installed in the liquid storage region 307, the backflow-preventing member 303 is located at the upper portion of the liquid storage region 307, the expansion end 3031 is located at one side of the backflow-preventing member 303 close to the upper cover body 3011, the contraction end 3032 is located at one side of the backflow-preventing member 303 far away from the upper cover body 3011, the outer surface of the expansion end 3031 is attached to the inner wall of the liquid storage region 307, and the first gas transmission port 3013 is located at the upper portion of a hollow cavity inside the expansion end 3031. In this way, the gas delivered to the liquid storage region 307 by the power unit 1 sequentially passes through the connecting portion 2, the second gas guiding elbow 3016, the first gas transmission port 3013, the expansion end 3031, and the second gas transmission port 3033 to enter the liquid storage region 307. The liquid in the liquid storage region 307 can be effectively prevented from being sucked into the air bag 104 in the power portion 1 by the arrangement of the backflow preventing member 303.

Preferably, the first air transfer port 3013 and the second air transfer port 3033 are not on the same vertical straight line.

To sum up, it is not difficult to discover, the application automatic liquid feeding device have simple structure, liquid transport accurate, be convenient for control, just first check valve and second check valve are not opened simultaneously, and outside liquid device is unable direct to be linked together with the stock solution bottle, can effectively prevent that the liquid in the stock solution district 307 from flowing back extremely advantage in the stock solution bottle 401.

Example 3

The application also provides an aromatherapy machine, the aromatherapy machine is provided with the automatic liquid adding device.

As some embodiments of this application, the champignon machine still has parts such as water tank, control panel, shell body and power supply, automatic liquid feeding device is located one side or the bottom surface downside of water tank, liquid outlet channel 3014 passes stretch into behind the lateral wall of water tank the inside of water tank.

Preferably, the liquid outlet channel 3014 can extend into the position below the liquid level in the water tank.

Further, when the automatic liquid adding device is used for an aromatherapy machine, the liquid in the liquid storage bottle 401 is essential oil.

As some embodiments of the present application, the power part 1 is located at a lower side of a bottom surface of the water tank, and the power part 1 is mounted on the water tank through the first housing 105 and/or the second housing 106.

Although the present invention is disclosed above, the present invention is not limited thereto. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. An automatic liquid adding device is characterized by comprising a power part (1), a connecting part (2), a conveying part (3) and a liquid storage part (4) which are connected in sequence;

the power part (1) comprises a driving motor (101), a transmission gear (102), a transmission rack (103) and an air bag (104) which are connected in sequence;

the driving motor (101) can drive the transmission gear (102) to rotate, the transmission gear (102) can drive the transmission rack (103) to translate, the transmission rack (103) can stretch or compress the air bag (104) through translation and change the volume of the air bag (104), and the conveying part (3) can suck or discharge liquid through the volume change of the air bag (104).

2. The automatic filling device according to claim 1,

an output shaft of the driving motor (101) is connected with the transmission gear (102), and the driving motor (101) can drive the transmission gear (102) to rotate clockwise or anticlockwise;

the transmission gear (102) is meshed with the transmission rack (103), and the transmission gear (102) can drive the transmission rack (103) to translate towards the direction close to or far away from the air bag (104);

one end of the air bag (104) is connected with the transmission rack (103), and the other end of the air bag is communicated with the conveying part (3) through the connecting part (2).

3. The automatic filling device according to claim 1, characterized in that said transmission gear (102) is a circular gear or a sector gear.

4. The automatic liquid adding device according to claim 1, wherein the power section (1) further comprises a first air guide elbow (107), one end of the first air guide elbow (107) is communicated with the inner space of the air bag (104), and the other end is communicated with the conveying section (3) through the connecting section (2).

5. The automatic filling device according to claim 1, wherein said power section (1) further comprises a first housing (105) and a second housing (106), said first housing (105) and said second housing (106) being relatively snap-fitted together to form a receiving space of said power section (1).

6. The automatic liquid adding device according to claim 5, wherein the transmission gear (102), the transmission rack (103) and the air bag (104) are positioned in a containing space formed by the first shell (105) and the second shell (106), and the driving motor (101) is connected with the transmission gear (102) after penetrating through the first shell (105) or the second shell (106).

7. The automatic filling device according to claim 5, wherein said air-bag (104) is connected to said driving rack (103) at one end and fixed to said first housing (105) and/or second housing (106) at the other end.

8. The automatic filling device according to claim 5, characterized in that a plurality of support plates (108) are arranged at intervals on the transmission rack (103), the support plates (108) being in contact with the first housing (105) and/or the second housing (106).

9. The automatic filling device according to claim 5, wherein a limit boss (109) is provided on the first housing (105) and/or the second housing (106), the limit boss (109) being capable of limiting the driving rack (103).

10. An aromatherapy machine, characterized in that, the aromatherapy machine has the automatic liquid adding device of any one of the above claims 1 to 9.

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