Consumable feeding device

Abstract

The invention belongs to the technical field of household appliances, and discloses a consumable delivery device which comprises a liquid storage box, a liquid adding box and a peristaltic pump, and the liquid storage box is provided with a liquid storage cavity; the liquid adding box is connected with the liquid storage box, a liquid inlet is formed in the side, facing the liquid storage box, of the liquid adding box, a liquid outlet correspondingly communicated with the liquid inlet is formed in the other side of the liquid adding box, and a one-way valve is installed between the liquid inlet and the liquid outlet; the peristaltic pump is provided with a liquid pumping port and a liquid spitting port, the liquid pumping port is communicated with the liquid storage cavity, and the liquid spitting port is communicated with the liquid inlet; the liquid adding box is provided with a flushing channel, one end of the flushing channel is formed in the side, away from the liquid storage box, of the liquid adding box, and the other end of the flushing channel communicates with the upper portion of the one-way valve. By arranging the peristaltic pump, the one-way valve and the flushing channel, consumables mainly flow in the silicone tube and are flushed by spraying liquid at an outlet of the one-way valve, the device is suitable for throwing of various consumables with different characteristics, liquid discharging smoothness is guaranteed, the failure rate is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a consumable material dispensing device. Background Art

[0002] For home appliances such as washing machines and dishwashers, laundry detergent, detergent and other consumables are put into the internal cleaning cavity through the consumables dispensing device during cleaning to ensure the cleaning effect. Since users may put in consumables of different brands and dates during use, these different consumable liquids are prone to clogging the internal pump group and the dispensing nozzle due to differences in physical and chemical properties such as liquid viscosity, chemical corrosiveness, and drying and coagulation. This will not only cause the working noise of the dispensing device to increase over time, but also result in a short working life of the dispensing device and a relatively high failure rate. Summary of the invention

[0003] The object of the present invention is to provide a consumables delivery device, which can prevent the consumables from drying and clogging the inlet and outlet of the peristaltic pump and the liquid outlet on the liquid adding box, ensure smooth liquid discharge, reduce working noise and extend service life.

[0004] To achieve this object, the present invention adopts the following technical scheme: a consumable material delivery device, comprising a liquid storage box, a liquid adding box and a peristaltic pump, the liquid storage box is provided with a liquid storage cavity; the liquid adding box is connected to the liquid storage box, the liquid adding box is provided with a liquid inlet on one side facing the liquid storage box, and is provided with a liquid outlet corresponding to the liquid inlet on the other side, and a one-way valve is installed between the liquid inlet and the liquid outlet; the peristaltic pump is provided with a liquid suction port and a liquid discharge port, the liquid suction port is connected with the liquid storage cavity, and the liquid discharge port is connected with the liquid inlet; wherein the liquid adding box is provided with a flushing channel, one end of the flushing channel is opened on the side of the liquid adding box away from the liquid storage box, and the other end is connected to the top of the one-way valve.

[0005] Preferably, the liquid adding box comprises a liquid adding box body and a liquid adding box seat, the liquid adding box body and the liquid adding box seat are fixedly connected, the liquid inlet is opened on the liquid adding box seat, the liquid outlet is opened on the liquid adding box body, a first enclosure portion is provided on the side of the liquid adding box body facing the liquid adding box seat, the first enclosure portion is arranged around the liquid outlet and the flushing channel, a second enclosure portion matching the shape of the first enclosure portion is provided on the side of the liquid adding box seat facing the liquid adding box body, the first enclosure portion and the second enclosure portion are spliced ​​to form a flushing chamber, the flushing channel is connected to the top end of the flushing chamber, and the one-way valve is accommodated in the flushing chamber.

[0006] Preferably, a V-shaped guide block is provided on the side of the liquid adding box body facing away from the liquid adding box seat, a vertical baffle is provided at the bottom end of the guide block, a collecting groove is formed between the baffle and the inner wall of the guide block, and the collecting groove is connected to the flushing channel.

[0007] Preferably, a guide portion is provided on a side of the liquid adding box body away from the liquid adding box seat, and the guide portion is in a trumpet-shaped shape that gradually expands outward in a direction away from the liquid storage box, and the trumpet-shaped guide portion is correspondingly connected to the liquid outlet.

[0008] Preferably, the liquid adding box is provided with a first air hole, which passes through the liquid adding box along the wall thickness direction of the liquid adding box, and a pressure maintaining channel separated from the liquid storage cavity is provided in the liquid storage box, one end of the pressure maintaining channel is communicated with the first air hole, and the other end extends to the top of the liquid storage cavity and is provided with a second air hole, and the pressure maintaining channel is communicated with the liquid storage cavity through the second air hole.

[0009] Preferably, a plug is provided on the side of the liquid adding box facing the liquid storage box, the plug is connected to the liquid storage box, the plug is provided with a through hole, the first air vent is connected with the pressure maintaining channel through the through hole, the first air vent forms an air inlet on the side of the liquid adding box away from the liquid storage box, and the through hole is located above the air inlet.

[0010] Preferably, the plug is connected to a first sealing ring, a socket is provided on a side of the liquid storage box facing the liquid adding box, and the first sealing ring is limited to the socket.

[0011] Preferably, the liquid adding box is provided with a liquid adding port, the liquid adding port is communicated with the liquid storage cavity and is located above the flushing channel, and a detachable sealing cover is installed at the liquid adding port.

[0012] Preferably, the edge of the liquid adding box on the side facing away from the liquid storage box is provided with a flange, the liquid adding box is connected to a flip cover, the bottom end of the flip cover is rotatably connected to the flange, the top end is provided with a snap-in portion, the flange is provided with a slot that is snap-fitted with the snap-in portion, the sealing cover is fixed to the flip cover, the flange; and / or the flip cover is provided with a hollow structure for external spray liquid to pass through.

[0013] Preferably, a liquid level sensor is installed on the bottom surface of the liquid storage box, and a detection end of the liquid level sensor extends into the liquid storage cavity.

[0014] The beneficial effects of the present invention are as follows: when the consumable material delivery device is working, the peristaltic pump first draws the consumable material from the liquid storage box through the liquid extraction port, and then transmits the consumable material to the liquid discharge port through the internal silicone tube, and the consumable material flows out from the liquid outlet through the liquid discharge port and the one-way valve. At the same time, the external spraying device sprays the spraying liquid toward the liquid adding box, and the spraying liquid and the consumable material are mixed and flow down, and part of the spraying liquid passes through the flushing channel and flushes the one-way valve from top to bottom, so as to achieve the purpose of consumable material delivery. By setting the peristaltic pump, the one-way valve and the flushing channel, the one-way valve structure of the peristaltic pump at the liquid extraction port is cancelled, and the peristaltic pump relies on air pressure suction to transport the consumable material, so that the consumable material mainly flows in the silicone tube and is flushed by the spraying liquid at the outlet of the one-way valve, which can effectively avoid the consumable material from drying and blocking the inlet and outlet of the peristaltic pump (i.e., the liquid extraction port and the liquid discharge port) and the liquid outlet on the liquid adding box, and is suitable for the delivery of consumable materials with various characteristics, ensuring smooth liquid discharge, reducing the failure rate, extending the service life, and ensuring that the noise of the consumable material delivery device will not increase after long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a consumable material delivery device according to an embodiment of the present invention;

[0016] Figure 2 is a schematic structural diagram of a peristaltic pump according to an embodiment of the present invention;

[0017] Figure 3 is a three-dimensional diagram of a liquid adding box according to an embodiment of the present invention;

[0018] Figure 4 is an exploded view of a liquid adding box according to an embodiment of the present invention;

[0019] Figure 5 yes Figure 1 Sectional view at AA in the middle;

[0020] Figure 6 yes Figure 1 Sectional view at the middle BB;

[0021] Figure 7 is a schematic structural diagram of a liquid storage box according to an embodiment of the present invention;

[0022] Figure 8 is an exploded view of a liquid storage box according to an embodiment of the present invention;

[0023] Fig. 9 yes Figure 8 Enlarged view of point C in the middle.

[0024] In the figure:

[0025] 100, liquid storage box; 110, liquid storage cavity; 111, liquid injection port; 112, expansion cavity; 120, liquid storage box body; 121, third enclosure; 122, socket; 123, positioning groove; 130, liquid storage box cover; 131, fourth enclosure; 140, pressure-maintaining channel; 141, second air vent; 150, liquid level sensor; 160, screw hole;

[0026] 200, liquid adding box; 210, liquid adding box body; 211, liquid outlet; 212, first enclosure; 213, guide block; 2131, baffle; 2132, collecting groove; 214, guide part; 215, flange; 2151, clamping groove; 216, pressing part; 217, stud; 220, liquid adding box seat; 221, liquid inlet; 222, second enclosure; 223, flushing chamber; 224, snap ring; 225, plug; 2251, through hole; 2252, first sealing ring; 230, one-way valve; 231, valve body; 232, valve cover; 240, flushing channel; 250, first air vent; 251, air inlet; 260, liquid filling port; 270, flip cover; 271, sealing cover; 272, second sealing ring; 273, clamping part; 280, third sealing ring;

[0027] 300, peristaltic pump; 310, housing; 320, mounting base; 321, planetary carrier; 322, roller; 330, silicone tube; 340, joint; 341, liquid extraction port; 342, liquid discharge port; 343, interface; 350, motor; 351, gear set. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] Reference Figures 1 to 9 As shown, a consumable material delivery device provided according to an embodiment of the present application includes a liquid storage box 100, a liquid adding box 200 and a peristaltic pump 300. The shape of the liquid storage box 100 can be designed according to the specific applicable household appliances. Optionally, the shape of the liquid storage box 100 can be designed to be a bar, a square, etc., which will not be repeated here. A liquid storage chamber 110 is provided in the liquid storage box 100. Optionally, an expansion chamber 112 can be provided at the end of the liquid storage chamber 110 to increase the liquid storage capacity of the liquid storage chamber 110. In the present embodiment, the consumables are liquid laundry detergents, detergents and other substances, which are specially explained here to avoid misunderstandings.

[0033] The liquid adding box 200 is connected to the liquid storage box 100 and is located on one side of the liquid storage box 100. A liquid inlet 221 is provided on one side of the liquid adding box 200 facing the liquid storage box 100, and a liquid outlet 211 corresponding to and communicating with the liquid inlet 221 is provided on the other side. A one-way valve 230 is installed between the liquid inlet 221 and the liquid outlet 211. Specifically, the one-way valve 230 includes a valve body 231 hollowed out on all sides and a valve cover 232 limited in the valve body 231. The valve body 231 is provided with an opening at one end close to the liquid inlet 221, and the valve cover 232 can slide toward or away from the opening to achieve a one-way flow of consumables from the liquid inlet 221 to the liquid outlet 211.

[0034] The peristaltic pump 300 is provided with a liquid extraction port 341 and a liquid discharge port 342. Specifically, the peristaltic pump 300 includes a housing 310 and a mounting seat 320 which are connected to each other, the housing 310 is connected with a motor 350, a planetary carrier 321 is mounted on the mounting seat 320, the planetary carrier 321 is rotatably connected to the mounting seat 320 via a positioning pin, the motor 350 is transmission-connected to the planetary carrier 321 via a gear set 351, the planetary carrier 321 is provided with three rotatable rollers 322 at intervals along the circumferential direction, a U-shaped silicone tube 330 is provided on the mounting seat 320, and the turning point of the U-shaped silicone tube 330 is limited to the three rollers 322 and the mounting seat 320. The inner wall of the mounting seat 320 is squeezed and deformed by the roller 322. A joint 340 is fixed at one end of the mounting seat 320. The joint 340 is located between the liquid adding box 200 and the liquid storage box 100. The joint 340 is provided with two interfaces 343. The liquid extraction port 341 and the liquid discharge port 342 are respectively convexly arranged on both sides of the joint 340. The liquid extraction port 341 is located below the liquid discharge port 342. The two interfaces 343 are respectively connected with the liquid extraction port 341 and the liquid discharge port 342. The two ends of the U-shaped silicone tube 330 are respectively connected with the two interfaces 343 to connect the liquid extraction port 341 and the liquid discharge port 342. The liquid extraction port 341 is sealed and connected to the liquid storage box 100 through an O-ring and communicates with the liquid storage chamber 110. The liquid discharge port 342 is sealed and connected to the liquid inlet 221 through an O-ring and communicates with the liquid inlet 221. Since the peristaltic pump 300 is mature in technology and has many types, the specific structure and working principle of the peristaltic pump 300 will not be described in detail here.

[0035] The liquid adding box 200 is provided with a flushing channel 240, one end of which is opened at a side of the liquid adding box 200 away from the liquid storage box 100, and the other end is connected to the top of the one-way valve 230. In other words, the flushing channel 240 penetrates at least a part of the wall thickness of the liquid adding box 200 from the end surface of the side of the liquid adding box 200 away from the liquid storage box 100 and penetrates downward to the top of the one-way valve 230.

[0036] It can be understood that when the consumable delivery device is working, the motor 350 of the peristaltic pump 300 is started, so that the roller 322 rotates in a circle following the planetary frame 321, so that a vacuum is generated in the silicone tube 330. Under atmospheric pressure, the silicone tube 330 draws consumables from the liquid storage box 100 through the liquid extraction port 341, and then transfers the consumables to the liquid discharge port 342. The consumables push out of the valve cover 232 through the liquid discharge port 342 and flow out from the liquid outlet 211. At the same time, the external spray device sprays spray liquid toward the liquid adding box 200. The spray liquid mixes with the consumables and flows down from the bottom of the liquid adding box 200 under the action of gravity, and part of the spray liquid passes through the flushing channel 240 to flush the one-way valve 230 from top to bottom, thereby achieving the purpose of consumable delivery.

[0037] By setting a peristaltic pump 300, a one-way valve 230 and a flushing channel 240, the peristaltic pump 300 relies on air pressure suction to transport the consumables, so that the consumables mainly flow in the silicone tube 330 and are flushed by the spray liquid at the outlet of the one-way valve 230, which can effectively prevent the consumables from drying up and blocking the inlet and outlet of the peristaltic pump 300 and the liquid outlet 211. Even if the consumables have different characteristics, they will not dry up and block the liquid extraction port 341, the liquid discharge port 342, the one-way valve 230 at the liquid discharge port 342 of the peristaltic pump 300, and the liquid outlet 211 on the liquid adding box 200. It is suitable for the delivery of consumables with various different characteristics, ensuring smooth liquid discharge, reducing the failure rate, and extending the service life. In addition, since there is no dry consumable blockage, the friction on the consumables is small, the circulation efficiency is high, and the noise of the consumable delivery device will not increase after long-term operation.

[0038] Further, a liquid level sensor 150 is installed on the bottom surface of the liquid storage box 100, and the detection end of the liquid level sensor 150 extends into the liquid storage cavity 110. Optionally, a positioning groove 123 matching the shape of the liquid level sensor 150 is provided on the bottom surface of the liquid storage box 100, and the liquid level sensor 150 is limited in the positioning groove 123 and bolted to the liquid storage box 100. An O-ring for sealing is also provided between the liquid level sensor 150 and the liquid storage box 100.

[0039] By setting up the liquid level sensor 150, the liquid level sensor 150 can detect the liquid level of the consumables in the liquid storage box 100 and transmit the signal to the electrical control assembly of the home appliance, so as to shut down the motor 350 in time when the liquid level is low and the consumable storage is insufficient, so as to avoid the peristaltic pump 300 being idling and affecting the service life of the consumable delivery device.

[0040] Reference Figure 1 , Figure 3 and Figure 5 As shown, it can be understood that the liquid adding box 200 is provided with a liquid adding port 260, and the liquid adding port 260 passes through the liquid adding box 200 along the wall thickness direction of the liquid adding box 200, and the side wall of the liquid storage box 100 is provided with a liquid injection port 111, and the liquid adding port 260 is sealed and connected to the liquid injection port 111 through an O-ring, and the liquid adding port 260 is connected to the liquid storage cavity 110 through the liquid injection port 111 and is located above the flushing channel 240, and a removable sealing cover 271 is installed at the liquid adding port 260.

[0041] The user removes the sealing cover 271 and can add consumables to the liquid storage chamber 110 through the liquid adding port 260. The user installs the sealing cover 271 to close the liquid adding port 260, and can close the liquid storage chamber 110. The liquid adding port 260 is arranged on the liquid adding box 200 and arranged above the flushing channel 240, so as to reasonably utilize the space above the flushing channel 240, reduce the lateral size of the liquid adding box 200, effectively improve the integration of the liquid adding box 200, and facilitate the user to add consumables.

[0042] Reference Figure 3 and Figure 4As shown, it can be understood that the edge of the liquid adding box 200 on the side away from the liquid storage box 100 is provided with a flange 215, and the flange 215 is arranged around the top edge and both sides of the liquid storage box 100 along the circumference of the liquid storage box 100, and the liquid adding box 200 is connected with a flip cover 270, the bottom end of the flip cover 270 is rotatably connected with the flange 215, and the top end is provided with an elastic arm, and the elastic arm is provided with a clamping portion 273, and the flange 215 is provided with a clamping groove 2151 that is clamped with the clamping portion 273, and the sealing cover 271 is fixed to the flip cover 270. Flanged edge 215; and / or, the flip cover 270 is provided with a hollow structure for external spraying liquid to pass through. Specifically, the flange 215 located at the top is provided with a hollow structure for external spray liquid to pass through, or the flap 270 is provided with a hollow structure for external spray liquid to pass through, or both the flange 215 located at the top and the flap 270 are provided with a hollow structure for external spray liquid to pass through, wherein the hollow structure can be a plurality of bar holes, a plurality of circular holes or a grid structure, which will not be repeated here.

[0043] Optionally, the sealing cover 271 can be connected to the side wall of the flip cover 270, or can be integrally formed with the sealing cover 271. The sealing cover 271 is provided with a second sealing ring 272, and the cross section of the second sealing ring 272 is C-shaped. The side of the liquid adding box 200 away from the liquid storage box 100 is provided with an annular pressing portion 216, and the pressing portion 216 is arranged around the liquid adding port 260. When the clamping portion 273 is clamped in the clamping groove 2151, the second sealing ring 272 and the pressing portion 216 are deformed by abutment, thereby closing the liquid adding port 260, and at this time, a gap is formed between the bottom end of the flip cover 270 and the liquid adding box 200 for the mixed liquid of the consumables and the spray liquid to pass through.

[0044] By providing the flip cover 270, on the one hand, the sealing cover 271 is integrated in the flip cover 270, and the user can install or remove the sealing cover 271 by turning the flip cover 270, thereby effectively improving the convenience of loading and unloading the sealing cover 271; on the other hand, the flip cover 270, the flange 215 and the side wall of the liquid adding box 200 facing away from the liquid storage box 100 cooperate to limit the spray liquid, avoid splashing and overflowing of the spray liquid, and improve the cleanliness of the consumables delivery device.

[0045] Reference Figures 3 to 5As shown, it can be understood that the liquid adding box 200 includes a liquid adding box body 210 and a liquid adding box seat 220, and the liquid adding box body 210 and the liquid adding box seat 220 are fixedly connected. Optionally, the liquid adding box body 210 and the liquid adding box seat 220 are welded and fixed to ensure the structural stability and sealing of the liquid adding box 200. The liquid inlet 221 is opened on the liquid adding box seat 220 and passes through the liquid adding box seat 220, the liquid outlet 211 is opened on the liquid adding box body 210 and passes through the liquid adding box body 210, a first enclosure 212 is provided on the side of the liquid adding box body 210 facing the liquid adding box seat 220, the first enclosure 212 is arranged around the liquid outlet 211 and the flushing channel 240, and a second enclosure 222 matching the shape of the first enclosure 212 is provided on the side of the liquid adding box seat 220 facing the liquid adding box body 210, the first enclosure 212 and the second enclosure 222 are spliced ​​to form a flushing chamber 223, the flushing channel 240 is connected to the top of the flushing chamber 223, and the one-way valve 230 is accommodated in the flushing chamber 223.

[0046] By setting the first enclosure part 212 and the second enclosure part 222, after the liquid adding box body 210 and the liquid adding box seat 220 are connected and fixed, the flushing cavity 223 formed by the first enclosure part 212 and the second enclosure part 222 can limit the spray liquid passing through the flushing channel 240, avoiding the spray liquid from overflowing into the gap between the liquid adding box body 210 and the liquid adding box seat 220 to cause pollution, thereby effectively improving the structural rationality of the liquid adding box 200.

[0047] Furthermore, a clamping ring 224 is provided on one side of the liquid adding box seat 220 facing the liquid adding box body 210 . The clamping ring 224 is located in the second enclosure portion 222 . The one-way valve 230 is sealed and limited to the clamping ring 224 by an O-ring, thereby effectively improving the installation stability of the one-way valve 230 .

[0048] It should be added that the outer wall of the liquid adding box body 210 is also provided with a third sealing ring 280, which is used to seal the gap between the liquid adding box 200 and the mounting sheet metal after the consumable material delivery device is installed in the household appliance to prevent the spray liquid from contaminating the surrounding area after the liquid storage.

[0049] Reference Figure 3 and Figure 5 As shown, it can be understood that a V-shaped guide block 213 is provided on the side of the liquid adding box body 210 facing away from the liquid adding box seat 220, and the guide block 213 protrudes from the surface of the liquid adding box body 210. A vertical baffle 2131 is provided at the bottom end of the guide block 213, and a collecting groove 2132 is formed between the baffle 2131 and the inner wall of the guide block 213, and the collecting groove 2132 is connected to the flushing channel 240.

[0050] By setting the guide block 213 and Collecting trough 2132The V-shaped guide block 213 can collect the spray liquid sprayed from the top of the liquid adding box 200 or the upper side of the flushing channel 240, and guide the collected spray liquid into the flushing channel 240, thereby increasing the flow rate of the spray liquid in the flushing channel 240 and enhancing the flushing effect of the spray liquid on the one-way valve 230.

[0051] Continue to refer to Figure 3 and Figure 5 As shown, it can be understood that a guide portion 214 is provided on the side of the liquid adding box body 210 away from the liquid adding box seat 220, and the guide portion 214 is in a trumpet shape that gradually expands outward in a direction away from the liquid storage box 100, and the trumpet-shaped guide portion 214 is correspondingly connected to the liquid outlet 211.

[0052] By providing a trumpet-shaped guide portion 214, after the consumables and the spray liquid are mixed at the outlet of the one-way valve 230, the guide portion 214 can guide the mixed liquid to be sprayed out in a diffused state, thereby expanding the spraying range and angle of the mixed liquid and enhancing the delivery effect of the consumable delivery device.

[0053] Reference Figure 6 and Figure 7 As shown, it can be understood that the liquid adding box 200 is provided with a first air hole 250, and the first air hole 250 penetrates the liquid adding box 200 along the wall thickness direction of the liquid adding box 200, and a pressure maintaining channel 140 separated from the liquid storage cavity 110 is provided in the liquid storage box 100, one end of the pressure maintaining channel 140 is connected to the first air hole 250, and the other end extends to the top of the liquid storage cavity 110 and is provided with a second air hole 141, and the pressure maintaining channel 140 is connected to the liquid storage cavity 110 through the second air hole 141.

[0054] By providing the first air hole 250, the pressure-maintaining channel 140 and the second air hole 141, the first air hole 250 is connected to the external air, and the second air hole 141 is connected to the first air hole 250 through the pressure-maintaining channel 140, thereby ensuring that the pressure of the liquid storage chamber 110 inside the liquid storage box 100 is consistent with that of the external air. When the user adds consumables to the liquid storage box 100, the air in the liquid storage chamber 110 is discharged from the liquid storage chamber 110 through the pressure-maintaining channel 140 and the first air hole 250. When the consumables in the liquid storage chamber 110 are consumed, the air pressure in the liquid storage chamber 110 is replenished through the pressure-maintaining channel 140 and the second air hole 141, so that the internal consumables can be smoothly sucked out by the peristaltic pump 300 at any time, thereby avoiding insufficient pressure in the liquid storage chamber 110, making it difficult for the peristaltic pump 300 to suck, and affecting the working efficiency of the consumable delivery device. In addition, the pressure-maintaining channel 140 extends to the top of the liquid storage chamber 110 , which can prevent the consumables in the liquid storage chamber 110 from reversely osmotically entering the pressure-maintaining channel 140 or even flowing out of the liquid storage chamber 110 through the second air vent 141 , thereby ensuring the liquid storage effect of the liquid storage chamber 110 .

[0055] Reference Figure 8 and Fig. 9As shown, specifically, the liquid storage box 100 includes a liquid storage box body 120 and a liquid storage box cover 130, the liquid storage box body 120 and the liquid storage box cover 130 are welded and fixed, and the liquid injection port 111 is opened in the liquid storage box body 120. The third enclosure part 121 and the fourth enclosure part 131 are respectively provided on opposite sides of the liquid storage box body 120 and the liquid storage box cover 130, and the third enclosure part 121 and the fourth enclosure part 131 are spliced ​​to form a pressure-maintaining channel 140 isolated from the liquid storage cavity 110, and the second air vent 141 is opened in the third enclosure part 121.

[0056] Furthermore, the liquid storage box body 120 and the liquid storage box cover 130 cooperate to form a plurality of screw holes 160 that pass through the liquid storage box 100. The liquid adding box 200 and the peristaltic pump 300 are both provided with studs 217 corresponding to the screw holes 160. The liquid storage box 100 is fixedly connected to the liquid adding box 200 and the peristaltic pump 300 respectively by screws passing through the screw holes 160. This effectively improves the installation stability of the liquid adding box 200 and the peristaltic pump 300 and improves the structural tightness of the consumable delivery device without affecting the sealing of the liquid storage chamber 110.

[0057] Reference Figure 4 and Figure 6 As shown, it can be understood that a plug 225 is provided on the side of the liquid adding box 200 facing the liquid storage box 100 (i.e., the side of the liquid adding box seat 220 away from the liquid adding box body 210), the plug 225 protrudes from the surface of the liquid adding box 200, the plug 225 is provided with a through hole 2251, the plug 225 is connected to the liquid storage box 100, the first air hole 250 is connected to the pressure maintaining channel 140 through the through hole 2251, the first air hole 250 forms an air inlet 251 on the side of the liquid adding box 200 away from the liquid storage box 100, and the through hole 2251 is located above the air inlet 251.

[0058] The through hole 2251 is arranged above the air inlet 251, that is, there is a height difference between the air at the air inlet 251 where it enters the liquid adding box 200 and the air at the pupil where it leaves the liquid adding box 200. Under the premise of not affecting the gas flow and balancing the air pressure inside and outside the liquid storage chamber 110, it can prevent backflow and prevent the spray liquid sprayed toward the liquid adding box 200 from entering the pressure maintaining channel 140 through the first air hole 250 to cause pollution, thereby effectively improving the structural rationality of the first air hole 250.

[0059] Reference Figure 6 and Figure 7 As shown, the plug 225 is connected to a first sealing ring 2252 , a socket 122 is provided on a side of the liquid storage box 100 facing the liquid adding box 200 , and the first sealing ring 2252 is limited to the socket 122 .

[0060] By setting the first sealing ring 2252, the first sealing ring 2252 is pressed between the outer wall of the plug 225 and the inner wall of the socket 122, which can effectively improve the air tightness between the plug 225 and the liquid storage box 100, ensure the sealing of the connection between the first air hole 250 and the pressure maintaining channel 140, and avoid gas leakage to affect the air pressure balance inside and outside the liquid storage chamber 110.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A consumable material delivery device, characterized in that: include: A liquid storage box (100) is provided with a liquid storage cavity (110); A liquid adding box (200) connected to the liquid storage box (100); a liquid inlet (221) is provided on one side of the liquid adding box (200) facing the liquid storage box (100); and a liquid outlet (211) corresponding to and communicating with the liquid inlet (221) is provided on the other side of the liquid adding box (200); a one-way valve (230) is installed between the liquid inlet (221) and the liquid outlet (211); The peristaltic pump (300) is provided with a liquid extraction port (341) and a liquid discharge port (342), wherein the liquid extraction port (341) is in communication with the liquid storage chamber (110), and the liquid discharge port (342) is in communication with the liquid inlet (221); The liquid adding box (200) is provided with a flushing channel (240), one end of the flushing channel (240) is opened on a side of the liquid adding box (200) away from the liquid storage box (100), and the other end is connected to the top of the one-way valve (230).

2. The consumable material delivery device according to claim 1, characterized in that: The liquid adding box (200) comprises a liquid adding box body (210) and a liquid adding box seat (220); the liquid adding box body (210) and the liquid adding box seat (220) are fixedly connected; the liquid inlet (221) is provided on the liquid adding box seat (220); the liquid outlet (211) is provided on the liquid adding box body (210); a first enclosure portion (212) is provided on a side of the liquid adding box body (210) facing the liquid adding box seat (220); the first enclosure portion (212) surrounds the liquid outlet The opening (211) and the flushing channel (240) are arranged, and a second enclosure portion (222) matching the shape of the first enclosure portion (212) is provided on the side of the liquid adding box seat (220) facing the liquid adding box body (210), and the first enclosure portion (212) and the second enclosure portion (222) are spliced ​​to form a flushing cavity (223), the flushing channel (240) is communicated with the top end of the flushing cavity (223), and the one-way valve (230) is accommodated in the flushing cavity (223).

3. The consumable material delivery device according to claim 2, characterized in that: A V-shaped guide block (213) is provided on the side of the liquid adding box body (210) facing away from the liquid adding box seat (220); a vertical baffle (2131) is provided at the bottom end of the guide block (213); a collecting groove (2132) is formed between the baffle (2131) and the inner wall of the guide block (213); and the collecting groove (2132) is connected to the flushing channel (240).

4. The consumable material delivery device according to claim 2, characterized in that: A guide portion (214) is provided on a side of the liquid adding box body (210) facing away from the liquid adding box seat (220), and the guide portion (214) is in a trumpet-shaped shape that gradually expands outward in a direction away from the liquid storage box (100), and the trumpet-shaped guide portion (214) is correspondingly connected to the liquid outlet (211).

5. The consumable material delivery device according to any one of claims 1 to 4, characterized in that: The liquid adding box (200) is provided with a first air vent (250), and the first air vent (250) penetrates the liquid adding box (200) along the wall thickness direction of the liquid adding box (200); a pressure maintaining channel (140) separated from the liquid storage chamber (110) is provided in the liquid storage box (100); one end of the pressure maintaining channel (140) is communicated with the first air vent (250), and the other end extends to the top of the liquid storage chamber (110) and is provided with a second air vent (141); the pressure maintaining channel (140) is communicated with the liquid storage chamber (110) through the second air vent (141).

6. The consumable material delivery device according to claim 5, characterized in that: A plug (225) is provided on a side of the liquid adding box (200) facing the liquid storage box (100), the plug (225) is connected to the liquid storage box (100), the plug (225) is provided with a through hole (2251), the first air vent (250) is connected to the pressure maintaining channel (140) through the through hole (2251), the first air vent (250) forms an air inlet (251) on a side of the liquid adding box (200) facing away from the liquid storage box (100), and the through hole (2251) is located above the air inlet (251).

7. The consumable material delivery device according to claim 6, characterized in that: The plug (225) is connected to a first sealing ring (2252); a socket (122) is provided on a side of the liquid storage box (100) facing the liquid adding box (200); and the first sealing ring (2252) is located at the socket (122).

8. The consumable material delivery device according to any one of claims 1 to 4, characterized in that: The liquid adding box (200) is provided with a liquid adding port (260), the liquid adding port (260) is communicated with the liquid storage chamber (110) and is located above the flushing channel (240), and a detachable sealing cover (271) is installed at the liquid adding port (260).

9. The consumable material delivery device according to claim 8, characterized in that: The edge of the liquid adding box (200) on the side facing away from the liquid storage box (100) is provided with a flange (215); the liquid adding box (200) is connected with a flip cover (270); the bottom end of the flip cover (270) is rotatably connected with the flange (215); the top end is provided with a clamping portion (273); the flange (215) is provided with a clamping groove (2151) that is clamped with the clamping portion (273); the sealing cover (271) is fixed to the flip cover (270) and the flange (215); and / or the flip cover (270) is provided with a hollow structure for external spray liquid to pass through.

10. The consumable material delivery device according to any one of claims 1 to 4, characterized in that: A liquid level sensor (150) is installed on the bottom surface of the liquid storage box (100), and a detection end of the liquid level sensor (150) extends into the liquid storage cavity (110).

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