External input module and clothing processing equipment

Abstract

To provide an external input module and a garment processing facility. The external dosing module (100) and laundry treatment equipment (200) include a liquid storage unit (11) with a liquid storage chamber (111) for storing an additive, and a water supply line (14) with a Venturi line (141) through which a water flow flows. The Venturi line (141) has a suction port, and the suction port and the liquid storage chamber (111) communicate with each other via a dosing unit (12). Due to the Venturi effect, negative pressure is generated at the suction port when the water flows through the Venturi line (141), causing the additive in the liquid storage chamber (111) to be sucked into the Venturi line (141). This allows for automatic dosing of the additive, eliminates the need for a dosing pump assembly, simplifies dosing logic, reduces the number of parts used, and reduces the production cost of the external dosing module.

Description

[Technical Field]

[0001] The present invention relates to the field of clothing treatment technology, and more particularly to an external input module and a clothing treatment facility. [Background technology]

[0002] When using a laundry treatment facility to wash and care for clothes, additives such as detergents and care agents must be added to achieve better cleaning results. The laundry treatment facility typically has an internal additive module installed inside. Conventional additive modules require users to manually add additives, making it difficult to accurately control the amount of additive added. A small amount of additive added can affect the cleaning results, while a large amount can waste additives.

[0003] With the improvement of living standards, people are increasingly demanding intelligent clothing treatment equipment, and more and more high-end and mid-range clothing treatment equipment have an internal input module with an automatic input function, or an external input module that can be detachably connected to the body of the clothing treatment equipment is installed on the body of the clothing treatment equipment, and additives are automatically input into the clothing treatment equipment through the external input module, so that the clothing treatment equipment has an automatic input function.

[0004] Conventional external dosing modules have a water supply line through which water flows, and water is supplied to the laundry treatment device through the water supply line. The additive is drawn into the water supply line by the action of a dosing pump assembly and injected into the laundry treatment device along with the water flow. However, the dosing pump assembly has a complex structure and is expensive. Furthermore, the dosing pump assembly's control logic is complicated and consumes a lot of power during use, which increases the production costs of the external dosing module and the user's costs.

[0005] In view of the above, the present invention is proposed. Summary of the Invention [Problem to be solved by the invention]

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an external input module to achieve the objective of improving the convenience of operation of the external input module. Another object of the present invention is to provide an external input module to achieve the objective of reducing the production cost of the external input module. [Means for solving the problem]

[0007] In order to solve the above technical problems, the basic concept of the technical idea adopted by the present invention is as follows.

[0008] An external input module, a liquid storage unit having a liquid storage chamber for storing the additive; A water supply line having a venturi line for a water flow, a suction port provided on the venturi line, and the suction port and the liquid storage chamber are connected to the water supply line via an input unit.

[0009] Furthermore, the aforementioned input unit a switching valve assembly including a valve body, the valve body having a temporary storage chamber formed therein, the valve body having a first liquid inlet and a liquid outlet communicating with the temporary storage chamber; and an input conduit including a first input conduit communicating the liquid storage chamber with the first liquid inlet, and a second input conduit communicating the suction port with the liquid outlet.

[0010] Furthermore, the above-mentioned Venturi pipe includes a Venturi pipe tapered section, a Venturi pipe throat section, and a Venturi pipe diffusion section, which are arranged in this order along the flow direction of the water flow, and the above-mentioned suction port is provided on the above-mentioned Venturi pipe throat section.

[0011] Furthermore, the water supply pipeline further comprises a main intake pipe interconnected with a water source, and a pressure reduction pipe installed in parallel with the venturi pipe, and the pressure reduction pipe and the venturi pipe each communicate with the main intake pipe.

[0012] A second liquid inlet communicating with the temporary storage chamber is further provided on the valve body, and the decompression line communicates with the second liquid inlet via a connecting line.

[0013] Furthermore, the switching valve assembly further includes a first valve core and a second valve core movably arranged in the temporary storage chamber, the first valve core being for opening and closing the first liquid inlet and the liquid outlet, and the second valve core being for opening and closing the second liquid inlet and the liquid outlet.

[0014] Furthermore, the plurality of liquid storage chambers are connected to the temporary storage chamber via corresponding second input lines, and first liquid inlets are provided on the valve body that correspond to and communicate with the plurality of second input lines, and the first valve core is intended to selectively enable communication between the drain outlet and any of the first liquid inlets, or a one-to-one correspondence between the first valve core and the first liquid inlets.

[0015] Furthermore, the water supply line further comprises a main drain line, and the drain end of the pressure reduction line and the drain end of the venturi line each communicate with the intake end of the main drain line.

[0016] The water supply pipeline further includes a plurality of drainage branch lines arranged in parallel, each of which communicates with a drain end of the main drainage pipeline, and a switching device is provided at a communication point between the main drainage pipeline and the plurality of drainage branch lines, for selectively enabling communication between the main drainage pipeline and at least one of the plurality of drainage branch lines.

[0017] Furthermore, a flow rate sensor is provided on the second input line, and the flow rate sensor is for detecting the flow rate of the additive flowing from the liquid storage chamber into the second input line, or the flow rate of the water flowing from the pressure reduction line into the second input line.

[0018] The present invention further provides a laundry treatment facility having any of the external input modules described above. [Effects of the Invention]

[0019] By adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0020] 1. In the present invention, when the water flows through the Venturi pipe, negative pressure is generated at the suction port, and the additive in the liquid storage chamber is sucked into the Venturi pipe due to the Venturi effect, thereby realizing automatic additive injection, eliminating the need for an injection pump assembly, simplifying the injection logic, reducing the number of parts used, and reducing the production cost of the external injection module.

[0021] 2. In the present invention, the water flows from the tapered section of the Venturi conduit to the throat section of the Venturi conduit. As the water passes through the gradually narrowing cross section of the flow path, a low-pressure area is formed around the fast-flowing water, causing the additive in the liquid storage chamber to be sucked into the second input conduit and transported into the Venturi conduit through the suction port. The Venturi conduit has a simple structure, which is advantageous for increasing the input speed of the additive.

[0022] 3. In the present invention, the flow rate of the additive flowing into the second input line is detected by a flow sensor, and the input time of the additive can be determined based on the target input amount and the detected flow rate of the additive, thereby achieving accurate input. Conversely, the input time and input rate of the additive can be accurately controlled by adjusting the flow rate of the water flowing through the Venturi line to adjust the magnitude of the negative pressure generated at the suction port.

[0023] 4. In this invention, the water flow in the vacuum line flows into the temporary storage chamber and is transported to the Venturi line via the second input line, washing away the additives adhering to the Venturi line and ensuring that the additives drawn into the Venturi line from the liquid storage chamber are fully effective in the laundry washing and care process. In addition, the water flow in the vacuum line can flow directly into the drainage channel or indirectly via the Venturi line, making the water intake method more flexible.

[0024] Specific embodiments of the present invention will now be described in more detail with reference to the drawings. [Brief explanation of the drawings]

[0025] The drawings constituting a part of the present invention are intended to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are intended to interpret the present invention and are not intended to unduly limit the present invention. Needless to say, the drawings in the following description are merely some examples, and those skilled in the art can derive other drawings based on these drawings without requiring creative efforts. The drawings are as follows: [Figure 1] FIG. 1 is a principle diagram of an external input module according to an embodiment of the present invention. [Figure 2] FIG. 10 is a principle diagram of an external input module according to another embodiment of the present invention. [Figure 3] 1 is a structural schematic diagram of an external input module according to an embodiment of the present invention; [Figure 4] FIG. 2 is a side view of an external input module according to an embodiment of the present invention. [Figure 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. [Figure 6] 1 is a schematic diagram of a connection between a cover plate and a water supply pipe in an embodiment of the present invention. [Figure 7] FIG. 2 is an exploded view of a cover plate and a water supply line according to an embodiment of the present invention. [Figure 8] FIG. 10 is a bottom view of the upper cover plate in accordance with an embodiment of the present invention. [Figure 9]It should be understood that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concept to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0026] In order to clarify the purpose, technical idea and advantages of the embodiments of the present invention, the technical idea of ​​the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The following examples are for illustrating the present invention, but are not intended to limit the scope of the present invention.

[0027] It should be explained in the description of the present invention that the orientations or positional relationships indicated by the terms "upper," "lower," "front," "rear," "left," "right," "longitudinal," "inner," "outer," etc. are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate the description and simplification of the present invention, and do not indicate or imply that the devices or components shown necessarily have a particular orientation or are constructed and operated in a particular orientation, and should not be understood as limiting the present invention.

[0028] As should be explained in the description of the present invention, unless otherwise clearly specified or limited, the terms "attach," "interconnect," and "connect" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. They may also refer to a direct interconnection or an indirect interconnection via an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances. [Example]

[0029] As shown in Figure 1, an embodiment of the present invention provides an external input module 100. The external input module includes: a liquid storage unit 11 having a liquid storage chamber 111 for storing an additive; The water supply pipe 14 is provided with a venturi pipe 141 for the water flow, and a suction port is provided on the venturi pipe 141, and the suction port and the liquid storage chamber 111 are connected to the water supply pipe 14 via the input unit 12.

[0030] In this embodiment, the suction port and the liquid storage chamber 111 communicate with each other via the feeding unit 12. Due to the Venturi effect, when water is drawn into the water supply pipe 14, the water flows through the Venturi pipe 141, generating negative pressure at the suction port, and the additives in the liquid storage chamber 111 are sucked into the Venturi pipe 141, which then flows toward the water intake of the laundry treatment device 200 together with the water flow in the water supply pipe 14, thereby realizing automatic feeding of the additives.

[0031] As shown in FIG. 1, in this embodiment, the above-mentioned feeding unit 12 includes: The switching valve assembly 125 includes a valve body 1251, wherein a temporary storage chamber 1252 is formed inside the valve body 1251, and a first liquid inlet 1253 and a liquid outlet 1254 communicating with the temporary storage chamber 1252 are provided on the valve body 1251; and an input pipeline 121, wherein the input pipeline 121 includes a first input pipeline 1211 communicating between the liquid storage chamber 111 and the first liquid inlet 1253, and a second input pipeline 1212 communicating between the suction port and the liquid outlet 1254.

[0032] In this embodiment, the switching valve assembly controls the first liquid inlet 1253 and the liquid outlet 1254 to communicate or block, thereby controlling the liquid storage chamber 111 to communicate or block the suction port, allowing the additive in the liquid storage chamber 111 to flow into the temporary storage chamber 1252 through the first input line 1211 and be transported into the venturi line 141 through the second input line 1212, thereby realizing automatic input of the additive. The switching valve assembly has a simple structure and is easy to operate.

[0033] As shown in FIG. 1, in this embodiment, the Venturi conduit 141 includes a Venturi conduit tapered section 1411, a Venturi conduit throat section 1412, and a Venturi conduit diffusion section 1413, which are arranged in this order along the direction of water flow, and the suction port is provided on the Venturi conduit throat section 1412.

[0034] In this embodiment, the water flows from the Venturi conduit tapered section 1411 to the Venturi conduit throat section 1412. As the water flows through the gradually narrowing cross section of the flow path, a low-pressure region is formed around the fast-flowing water, causing the additive in the liquid storage chamber 111 to be sucked into the second input conduit and transported through the suction port into the Venturi conduit 141. The simple structure of the Venturi conduit 141 is advantageous for increasing the input speed of the additive.

[0035] 1 to 5, in this embodiment, the switching valve assembly 125 further includes a first valve core movably disposed in the temporary storage chamber 1252. The first valve core is for opening and closing the first liquid inlet 1253 and the liquid outlet 1254.

[0036] In this embodiment, the first valve core is disposed in the temporary storage chamber 1252 and is movable between at least a first position and a second position. When the first valve core moves upward to the first position, the first valve core closes the first liquid inlet 1253, thereby blocking the liquid storage chamber 111 from the temporary storage chamber 1252. When the first valve core moves downward to the second position, the first valve core opens the first liquid inlet 1253, thereby connecting the liquid storage chamber 111 to the temporary storage chamber 1252.

[0037] 1, in this embodiment, the plurality of liquid storage chambers 111 communicate with the temporary storage chamber 1252 via corresponding second input pipes 1212, and first liquid inlets 1253 are provided on the valve body 1251, correspondingly communicating with the plurality of second input pipes 1212. The first valve core selectively enables communication between the drain port 149b and any of the first liquid inlets 1253, or a one-to-one correspondence between the first valve core and the first liquid inlets 1253.

[0038] In this embodiment, the first valve core controls communication between the multiple liquid storage chambers 111 and the corresponding first input lines 1211, and the additives in the different liquid storage chambers 111 are sequentially or simultaneously input into the temporary storage chamber 1252 through the corresponding first input lines 1211 by the Venturi effect, thereby realizing the input of different types of additives into the clothing treatment equipment 200. This expands the types of additives that can be input into the clothing treatment equipment 200 and improves the washing and care effects of clothing.

[0039] 1, in this embodiment, a flow rate sensor 144 is provided on the second input pipe 1212. The flow rate sensor 144 is for detecting the flow rate of the additive flowing from the liquid storage chamber 111 into the second input pipe 1212.

[0040] In this embodiment, the flow rate sensor 144 detects the flow rate of the additive flowing into the second input conduit 1212, and the additive input time is determined based on the target input amount and the detected flow rate of the additive, thereby achieving accurate input. Conversely, the flow rate of the water flowing through the Venturi conduit 141 can be adjusted to adjust the magnitude of the negative pressure generated at the suction port, thereby accurately controlling the input time and input rate of the additive.

[0041] In the above-described external feeding module 100, when the water flows through the Venturi pipe 141, a negative pressure is generated at the suction port due to the Venturi effect, and the additive in the liquid storage chamber 111 is sucked into the Venturi pipe 141. This realizes automatic feeding of the additive, does not require the installation of a feeding pump 124 assembly, makes the feeding logic simpler, reduces the number of parts used, and reduces the production cost of the external feeding module 100. [Example]

[0042] As shown in FIG. 2, this embodiment is a further limitation of the above-mentioned embodiment 1, and the water supply pipeline 14 further includes a main water intake conduit 146 interconnected with the water source 300 and a pressure reduction conduit 147 installed in parallel with the venturi conduit 141, and the pressure reduction conduit 147 and the venturi conduit 141 are each connected to the main water intake conduit 146.

[0043] In this embodiment, the pressure reduction pipe 147 and the venturi pipe 141 are each connected to the main intake conduit 146, and the water flow in the main intake conduit 146 is divided into two branches at the connection between the main intake conduit 146 and the pressure reduction pipe 147 and the venturi pipe 141. This reduces the hydrostatic pressure that the venturi pipe 141 receives, disperses stress inside the venturi pipe 141, and prevents deformation or damage to the venturi pipe 141.

[0044] As shown in FIG. 2, in this embodiment, a second liquid inlet 1255 communicating with the temporary storage chamber 1252 is further provided on the valve body 1251, and the pressure reduction line 147 communicates with the second liquid inlet 1255 via a connecting line.

[0045] In this embodiment, the pressure reduction line 147 is connected to the second liquid inlet 1255 of the temporary storage chamber 1252 through a connecting line, and the water flow in the pressure reduction line 147 flows into the temporary storage chamber 1252 and is also transported to the venturi line 141 through the second input line 1212, so that the water can be taken into the clothing treatment equipment 200 and the additives attached to the venturi line 141 can be washed away, ensuring that the additives sucked into the venturi line 141 from the liquid storage chamber 111 can be fully effective in the clothing washing and care process.

[0046] In this embodiment, a first control valve is provided on the main intake conduit 146, and the first control valve controls the main intake conduit 146 to be connected to the pressure reducing conduit 147 or the venturi conduit 141.

[0047] 2, in this embodiment, the switching valve assembly 125 further includes a first valve core and a second valve core movably disposed in the temporary storage chamber 1252. The first valve core is used to open and close the first liquid inlet 1253 and the liquid outlet 1254, and the second valve core is used to open and close the second liquid inlet 1255 and the liquid outlet 1254.

[0048] In this embodiment, the second valve core is disposed in the temporary storage chamber 1252 and is movable between at least a first position and a second position. When the second valve core moves horizontally to the first position, the second valve core closes the second liquid inlet 1255, blocking the communication between the decompression line 147 and the temporary storage chamber 1252. When the second valve core moves horizontally to the second position, the second valve core opens the second liquid inlet 1255, connecting the decompression line 147 and the temporary storage chamber 1252.

[0049] As shown in FIG. 2, in this embodiment, the water supply pipe 14 further includes a main drainage channel 148, and the drainage end of the pressure reduction pipe 147 and the drainage end of the Venturi pipe 141 are each connected to the intake end of the main drainage channel 148.

[0050] In this embodiment, the pressure reduction pipe 147 and the venturi pipe 141 are each connected to the main drainage pipe 148. The water flow in the venturi pipe 141 flows into the drainage pipe, and the water flow in the pressure reduction pipe 147 flows directly into the drainage pipe, or is sucked into the venturi pipe 141 by the negative pressure at the suction port, and then flows indirectly into the drainage pipe via the venturi pipe 141. This makes the water intake method of the external input module 100 more flexible.

[0051] In this embodiment, a second control valve is provided on the main drainage path 148. The second control valve controls the main drainage path 148 to communicate with the pressure reduction line 147 or the venturi line 141.

[0052] 2, in this embodiment, the water supply pipeline 14 further includes a plurality of drainage branch channels 142 arranged in parallel. Each of the plurality of drainage branch channels 142 communicates with a drain end of the main drain channel 148, and a switching device 145 is provided at a communication point between the main drain channel 148 and the plurality of drainage branch channels 142. The switching device 145 is for selectively allowing communication between the main drain channel 148 and at least one of the plurality of drainage branch channels 142.

[0053] In this embodiment, the drain end of the main drainage channel 148 is divided into multiple drainage branch channels 142 connected in parallel, and each of the multiple drainage branch channels 142 is connected to the water intake port of the corresponding clothing treatment device 200, thereby realizing intelligent and accurate water intake and additive injection to the multiple clothing treatment devices 200 and improving the injection capacity of the external injection module 100.

[0054] In this embodiment, the switching device 145 has at least one flow chamber, and the flow chamber has a liquid inlet and a liquid outlet. The liquid inlet communicates with the upstream of the water supply pipe 14, and the liquid outlet communicates with the downstream of the water supply pipe 14. That is, the liquid inlet communicates with the main drainage channel 148, and the liquid inlet communicates with the corresponding drainage branch channel 142.

[0055] In this embodiment, when the external feeding module 100 is in the input state, the venturi conduit 141 and the temporary storage chamber 1252 are controlled to communicate with each other, and the pressure reduction conduit 147 and the temporary storage chamber 1252 are controlled to be blocked. When the water intake valve 143 is opened and water flows through the venturi conduit 141, negative pressure is generated at the suction port, and the additive in the liquid storage chamber 111 is sucked into the venturi conduit 141. After the target amount of additive has been sucked in, the venturi conduit 141 and the temporary storage chamber 1252 are controlled to be blocked, and the pressure reduction conduit 147 and the temporary storage chamber 1252 are controlled to be communicated with each other, so that the water flow in the pressure reduction conduit 147 is sucked into the venturi conduit 141 and washes away the additive adhering to the inside of the venturi conduit 141.

[0056] In this embodiment, the switching device 145 adjusts the water intake of the clothing treatment equipment 200 to connect to the corresponding drainage branch 142, eliminating the need for the user to manually switch the external input module 100 and the corresponding clothing treatment equipment 200 to interconnect, thereby improving the intelligence and automation level of the external input module 100.

[0057] With the external input module 100, the water flow in the pressure reducing line 147 flows into the temporary storage chamber 1252 and is transported to the venturi line 141 via the second input line 1212, washing away the additives adhering to the venturi line 141 and ensuring that the additives drawn into the venturi line 141 from the liquid storage chamber 111 are fully effective in the laundry washing and care process. In addition, the water flow in the pressure reducing line 147 can flow into the drainage channel directly or indirectly via the venturi line 141, making the water intake method more flexible. [Example]

[0058] As shown in Figures 3 to 9, an embodiment of the present invention provides an external input module 100. The external input module 100 includes: a liquid storage unit 11 having a liquid storage chamber 111 for storing an additive; The housing 15 has a liquid storage unit 11 provided above the housing 15, a cover plate 13 and a water supply pipe 14 provided within the housing 15, a passage provided inside the cover plate 13, a liquid injection hole 135 and a liquid discharge hole 136 provided within the passage, the liquid injection hole 135 communicating with the liquid storage chamber 111 via the input unit 12, and the liquid discharge hole 136 communicating with the water supply pipe 14.

[0059] In this embodiment, the liquid storage unit 11 is located above the passage, which is advantageous for the additives in the liquid storage chamber 111 to flow quickly downward into the passage and be transported through the passage into the water supply pipe 14. This allows the additives to be injected into the laundry treatment device 200 together with the water flow, thereby improving the injection efficiency of the external injection module 100.

[0060] In this embodiment, the water supply pipe 14 includes a venturi pipe 141 for the water flow. A suction port is provided on the venturi pipe 141, and the suction port and the liquid storage chamber 111 communicate with each other via the feeding unit 12.

[0061] 7 to 9, in this embodiment, the cover plate 13 includes an upper cover plate 131 and a lower cover plate 132 that are tightly coupled to each other. The passage is provided so as to be surrounded by the upper cover plate 131 and the lower cover plate 132, and a liquid inlet hole 135 communicating with the passage is provided on the upper cover plate 131, and a liquid outlet hole 136 communicating with the passage is provided on the lower cover plate 132.

[0062] In this embodiment, the upper cover plate 131 and the lower cover plate 132 are tightly coupled to each other to form a hollow chamber, and a passage for the additive to flow through the hollow chamber is provided inside the hollow chamber. The passage is sealed to prevent leakage during the additive injection process and ensure the safety performance of the external injection module 100.

[0063] As shown in FIGS. 3 to 5, in this embodiment, the liquid storage unit 11 is disposed above the upper cover plate 131, and the water supply pipe 14 is disposed below the lower cover plate 132. As shown in FIGS.

[0064] In this embodiment, the liquid storage unit 11 is disposed above the upper cover plate 131, which is advantageous for the additive in the liquid storage chamber 111 to flow downward quickly and into the passage; the water supply line 14 is disposed below the lower cover plate 132, which is advantageous for the additive in the passage to flow downward quickly and into the water supply line 14, thereby reducing the resistance encountered during the additive injection process and improving the flow rate of the additive, thereby improving the injection efficiency of the external injection module 100.

[0065] 7 to 9, in this embodiment, the upper cover plate 131 is provided with a first groove 133 that opens downward, and the lower cover plate 132 is provided with a second groove 134 that opens upward. The first groove 133 and the second groove 134 are fitted together facing each other, and the openings are sealed to form a passage. A liquid inlet hole 135 is provided at the bottom of the first groove 133, and a liquid outlet hole 136 is provided at the bottom of the second groove 134.

[0066] In this embodiment, the upper cover plate 131 and the lower cover plate 132 are tightly coupled to each other to form a hollow chamber, and the first groove 133 and the second groove 134 are fitted together opposite each other to seal the opening and form a passage for the flow of the additive, thereby preventing leakage during the additive injection process and ensuring the safety performance of the external injection module 100. In addition, multiple passages for the flow of the additive may be provided in the hollow chamber, allowing various additives to be injected respectively and expanding the variety of additive injection types.

[0067] 5 to 7 and 9, in this embodiment, the dosing unit 12 includes a dosing pipe 121 and a dosing pump 124 provided on the dosing pipe 121, and the liquid storage chamber 111 communicates with the liquid injection hole 135 via the dosing pipe 121. The dosing pump 124 is for extracting the additive from the liquid storage chamber 111 into the passage.

[0068] In this embodiment, the dosing pump 124 extracts the additive from the liquid storage chamber 111 and sends it into the passage through the dosing line 121, and then sends the additive in the passage into the water supply line 14 below the lower cover plate 132, thereby realizing automatic and accurate dosing of the additive and ensuring the washing and care effect of the clothes.

[0069] 8, in this embodiment, the first groove 133 includes an inlet groove and an outlet groove 1333 arranged in sequence along the flow direction of the additive. The depth of the inlet groove is greater than the depth of the outlet groove 1333, so that the additive fills the inlet groove and meets the additive input amount.

[0070] 7 to 9, in this embodiment, the feeding pump 124 is provided with a supply port 1241 and a discharge port 1242, and a partition plate 137 extending downward is provided within the introduction groove. The partition plate 137 divides the introduction groove into a first introduction groove 1331 communicating with the supply port 1241 and a second introduction groove 1332 communicating with the discharge port 1242. A liquid inlet hole 135 is provided at the bottom of the first introduction groove 1331, and the second introduction groove 1332 communicates with the discharge groove 1333. As a result, the additive flows into the first introduction groove 1331 via the supply port 1241, then flows into the second introduction groove 1332 via the discharge port 1242, and finally flows into the discharge groove 1333.

[0071] 7 to 9, in this embodiment, an upwardly extending limiting plate 1343 is provided in the second groove 134. The limiting plate 1343 divides the second groove 134 into a first limiting groove 1341 that faces and fits with the first inlet groove 1331, and a second limiting groove 1342 that faces and fits with the second inlet groove 1332 and outlet groove 1333. The top end of the limiting plate 1343 is attached to the bottom end of the partition plate 137, whereby the first inlet groove 1331 and the first limiting groove 1341 face to face and fit together, sealing their openings to form a first passage. Furthermore, the second inlet groove 1332, the outlet groove 1333, and the second limiting groove 1342 face to face and fit together, sealing their openings to form a second passage. The dosing pump 124 draws the additive from the first passage into the second passage.

[0072] 5, in this embodiment, a check valve 138 is provided in the passage. The check valve 138 controls the additive in the passage to be sent into the water supply line 14 through the liquid discharge hole 136, ensuring that the additive in the liquid storage chamber 111 flows into the water supply line 14 through the passage and preventing the additive from flowing back.

[0073] 8, in this embodiment, a positioning protrusion 1334 extending upward is provided at the bottom of the first groove 133, facing the liquid discharge hole 136. The bottom end of the check valve 138 is fitted onto the positioning protrusion 1334, and the top end of the check valve 138 can be inserted into or pulled out of the liquid discharge hole 136. This achieves automatic and accurate additive dosing and ensures that the amount of additive dosing meets the dosing demand.

[0074] 5, in this embodiment, an agitator blade 16 is provided in the water supply pipe 14. The agitator blade 16 is for agitating the additive that has flowed into the water supply pipe 14. The agitator blade 16 is located in the water supply pipe 14 between the liquid discharge hole 136 and the drain outlet 149b, and ensures that the additive and water are thoroughly mixed.

[0075] The external dosing module 100 described above allows the passage to connect the liquid storage chamber 111 to the water supply line 14, and the additives stored in the liquid storage chamber 111 are sent to the water supply line 14 through the passage and then injected into the laundry treatment device 200 along with the water flow. This allows for automatic dosing of additives, expands the range of additives that can be dispensed by the laundry treatment device 200, and improves the laundry washing and care effects. [Example]

[0076] This embodiment is a further modification of the third embodiment, in which a first groove 133 opening downward is provided in the upper cover plate 131, and one side of the lower cover plate 132 that is tightly coupled to the upper cover plate 131 is flat. One side of the side wall of the first groove 133 that faces the lower cover plate 132 is attached to the flat surface to seal the opening of the first groove 133 and form a passage. A liquid inlet hole 135 is provided at the bottom of the first groove 133, and a liquid outlet hole 136 that communicates with the first groove 133 is provided on the lower cover plate 132.

[0077] In this embodiment, the upper cover plate 131 and the lower cover plate 132 are tightly coupled to each other to form a hollow chamber, and the side wall of the first groove 133 is attached to one side of the lower cover plate 132 in a corresponding plane on the lower cover plate 132, forming a passage for the flow of additives, preventing leakage during the additive injection process, and ensuring the safety performance of the external injection module 100. Furthermore, multiple passages for the flow of additives may be provided in the hollow chamber, allowing different additives to be injected respectively and expanding the types of additive injection. Furthermore, the side of the lower cover plate 132 that is tightly coupled to the upper cover plate 131 is flat, which simplifies the structure of the lower cover plate 132 and speeds up the assembly of the external injection module 100.

[0078] In this embodiment, one side of the lower cover plate 132 that is tightly coupled to the upper cover plate 131 is flat. The side of the partition plate 137 that faces the lower cover plate 132 is attached to the flat surface, so that the first inlet groove 1331 and the flat surface corresponding to it are fitted together, sealing the openings to form a first passage, and further, the second inlet groove 1332 and the outlet groove 1333 are fitted together, sealing the openings to form a second passage. The dosing pump 124 sucks the additive in the first passage into the second passage.

[0079] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. The present invention has been disclosed above by way of a preferred embodiment, but is not intended to limit the present invention. Those skilled in the art may make slight changes or modifications using the technical content described above to create equivalent embodiments that are equivalently changed, without departing from the technical spirit of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical spirit of the present invention still fall within the spirit of the present invention. [Explanation of symbols]

[0080] In the figure: 100. External input module 11. Liquid storage unit 111. Liquid storage chamber 12. Insertion unit 121.Input pipe 1211.1st input pipe 1212.Second input pipe 124.Injection pump 1241. Supply Outlet 1242.Outlet 125. Switching valve assembly 1251. Valve body 1252. Temporary storage chamber 1253.1st liquid inlet 1254.Liquid outlet 1255.Second liquid inlet 13.Cover plate 131. Upper cover plate 132. Lower cover plate 133.First concave groove 1331.1st introduction groove 1332.Second introduction groove 1333.Outlet groove 1334. Positioning protrusion 134.Second concave groove 1341. First Restriction Ditch 1342. Second Restriction Ditch 1343. Restriction board 135.Liquid injection hole 136.Liquid drain hole 137. Divider 138. Check valve 14.Water supply pipeline 141. Venturi Pipe 1411. Venturi pipe tapered section 1412. Venturi pipe throat section 1413. Venturi pipe diffusion section 142. Drainage Diversion 143. Water intake valve 144. Flow sensor 145.Switching device 146.Main intake canal 147. Pressure reducing pipeline 148. Main drainage canal 149a. Water intake 149b. Drain 15. Housing 16. Mixing blade 200. Clothing processing equipment 300. Water source

Claims

1. An external input module, a liquid storage unit having a liquid storage chamber for storing the additive; An external input module comprising: a water supply pipe having a venturi pipe for a water flow, a suction port provided on the venturi pipe, and a water supply pipe that communicates with the suction port and the liquid storage chamber via an input unit.

2. The input unit is a switching valve assembly including a valve body, the valve body having a temporary storage chamber formed therein, the valve body having a first liquid inlet and a liquid outlet communicating with the temporary storage chamber; 2. The external input module of claim 1, further comprising an input conduit comprising a first input conduit communicating the liquid storage chamber with the first liquid inlet and a second input conduit communicating the suction port with the liquid outlet.

3. 3. The external injection module according to claim 2, wherein the Venturi conduit comprises a Venturi conduit tapered section, a Venturi conduit throat section, and a Venturi conduit diffusion section, which are arranged in this order along the direction of the water flow, and the suction port is provided on the Venturi conduit throat section.

4. the water supply pipeline further comprises a main intake pipe interconnected with a water source and a pressure reduction pipe installed in parallel with the venturi pipe, the pressure reduction pipe and the venturi pipe each communicating with the main intake pipe; 4. The external input module according to claim 3, wherein the valve body further includes a second liquid inlet communicating with the temporary storage chamber, and the pressure reduction line communicates with the second liquid inlet via a connecting line.

5. 5. The external input module of claim 4, wherein the switching valve assembly further comprises a first valve core and a second valve core movably mounted in the temporary storage chamber, the first valve core being used to open and close the first liquid inlet and the liquid outlet, and the second valve core being used to open and close the second liquid inlet and the liquid outlet.

6. The external input module described in claim 5, characterized in that the multiple liquid storage chambers are connected to the temporary storage chamber via corresponding second input pipes, and the valve body is provided with multiple first liquid inlets that are connected to corresponding second input pipes, and the first valve core is configured to selectively enable communication between the drain port and any of the first liquid inlets, or a one-to-one correspondence between the first valve core and the first liquid inlets.

7. 5. The external input module according to claim 4, wherein the water supply line further comprises a main drain line, and the drain end of the pressure reduction line and the drain end of the venturi line each communicate with the water intake end of the main drain line.

8. The external input module described in claim 7, characterized in that the water supply pipeline further comprises a plurality of drainage branch channels installed in parallel, each of the plurality of drainage branch channels communicating with the drainage end of the main drainage channel, and a switching device is provided at the communication point between the main drainage channel and the plurality of drainage branch channels, and the switching device is configured to selectively enable communication between the main drainage channel and at least one of the plurality of drainage branch channels.

9. 5. The external supply module of claim 4, wherein a flow rate sensor is provided on the second supply line, and the flow rate sensor is for detecting the flow rate of the additive flowing from the liquid storage chamber into the second supply line, or the flow rate of the water flowing from the pressure reduction line into the second supply line.

10. A clothes treatment facility, comprising an external input module according to any one of claims 1 to 9.

Images