A liquid injection device for a washing machine

Abstract

The laundry washing machine comprises a main shell, a driving member, a rotating frame, a first wheel, a second wheel, a first flow pipe, a second flow pipe and a flow connection mechanism. The driving member is assembled on the main shell, the driving shaft of the driving member is connected to the rotating frame, the rotating frame is located in the main shell, the first wheel and the second wheel are rotatably clamped on the main shell, the first flow pipe is pressed by the first wheel, and the second flow pipe is pressed by the second wheel. Therefore, the double-pump structure in the prior art is cancelled, the single rotating frame structure is used to realize the extraction of the washing liquid, the cost is reduced, the space volume is reduced, the volume of the laundry washing machine is reduced, and the market applicability of the laundry washing machine is improved as a whole.

Description

Technical Field

[0001] This invention relates to the field of laundry equipment technology, and more specifically to a liquid injection device for a washing machine. Background Technology

[0002] Currently, an increasing number of washing machines are equipped with automatic detergent dispensing mechanisms. Detergents, such as laundry detergent and fabric softener, are stored in separate, independent chambers. During operation, the pump in this mechanism draws the detergent from these chambers and dispenses it into the washing machine in a pre-programmed amount, eliminating the need for manual addition each time. Existing automatic detergent dispensing mechanisms use a motor to drive two pumps. When the motor rotates forward, the first pump operates while the second is inactive; when the motor rotates in reverse, the first pump is inactive while the second is active. However, the use of two pumps in these mechanisms increases costs and makes the dispensing mechanism too bulky, inevitably increasing the overall size of the washing machine and reducing its market applicability. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the main objective of the present invention is to provide a liquid injection device for washing machines that facilitates the improvement of the market applicability of washing machines.

[0004] To achieve the aforementioned main objectives, the liquid injection device for a washing machine provided by the present invention includes a main housing, a driving component, a rotating frame, a first wheel, a second wheel, a first flow tube, a second flow tube, and a receiving mechanism. The driving component is assembled into the main housing, and the driving shaft of the driving component is connected to the rotating frame, which is located inside the main housing. The first wheel and the second wheel are rotatably engaged with the main housing. The first flow tube is pressed by the first wheel, and the second flow tube is pressed by the second wheel. The first flow tube has a first inlet and a first outlet, and the second flow tube has a second inlet and a second outlet. The receiving mechanism includes a first receiving tube, a second receiving tube, a first input tube, a first output tube, a second input tube, and a second output tube. The first receiving tube is connected to the first input tube. The second inlet pipe is connected to the second input pipe. The first inlet section is connected to the first input pipe, the first outlet section is connected to the first output pipe, the second inlet section is connected to the second input pipe, and the second outlet section is connected to the second output pipe. The first inlet section, the second outlet section, the first input pipe, and the second output pipe are respectively arranged on the first side of the rotating frame, and the first outlet section, the second inlet section, the first output pipe, and the second input pipe are respectively arranged on the second side of the rotating frame. The first side and the second side are arranged horizontally opposite each other. The inlet mechanism is also provided with a first liquid supply pipe and a second liquid supply pipe. The first liquid supply pipe and the second liquid supply pipe are respectively inserted with a one-way valve of the liquid injection device. The first liquid supply pipe is connected to the first output pipe, and the second liquid supply pipe is connected to the second output pipe.

[0005] As can be seen from the above scheme, when the driving component drives the rotating frame to rotate in the first direction, the first wheel applies pressure to the first flow pipe, drawing the laundry detergent placed in the first independent cavity of the washing machine into the first receiving pipe. The laundry detergent then flows sequentially through the first input pipe, the first inlet, the first outlet, the first output pipe, and the first supply pipe before flowing out through the one-way valve. Meanwhile, the fabric softener placed in the second independent cavity of the washing machine is not drawn out, as the second supply pipe is equipped with a one-way valve, thus preventing air from flowing back into the second independent cavity. When the driving component drives the rotating frame to rotate in the second direction, the second wheel applies pressure to the second flow pipe, drawing the laundry detergent placed in the first independent cavity into the second flow pipe. The fabric softener in the second independent chamber is drawn into the second inlet pipe, and the laundry detergent flows sequentially through the second inlet pipe, the second inlet section, the second outlet section, the second outlet pipe, and the second supply pipe before flowing out through the one-way valve. The laundry detergent in the first independent chamber placed inside the washing machine is not drawn out. Since the first supply pipe is equipped with a one-way valve, air backflow into the first independent chamber is prevented. Therefore, the dual pump structure in the prior art is eliminated, and the washing liquid is drawn out with a single rotating frame structure. This reduces costs and also reduces the space occupied, making it easier to reduce the size of the washing machine and improving the overall market applicability of the washing machine.

[0006] In some embodiments, the receiving mechanism includes a cover and a receiving element connected to each other, with a first receiving pipe and a second receiving pipe both disposed on the cover, and a first input pipe, a first output pipe, a second input pipe and a second output pipe all disposed on the receiving element.

[0007] In some embodiments, the inner side of the cover is provided with a first flow channel and a second flow channel arranged symmetrically to each other, the first flow channel being connected to a first flow pipe and the second flow channel being connected to a second flow pipe.

[0008] In some embodiments, the inner side of the cover is provided with a first liquid supply channel and a second liquid supply channel arranged symmetrically to each other. The first liquid supply channel is connected to a first liquid supply pipe, and the second liquid supply channel is connected to a second liquid supply pipe.

[0009] In some embodiments, the inner side of the flow carrier is provided with a first flow channel and a second flow channel arranged symmetrically to each other. The first flow channel is connected to the first input pipe, and the second flow channel is connected to the second input pipe.

[0010] In some embodiments, the first flow receiving channel and the first flow receiving channel are arranged in a mirror-symmetric manner, and the second flow receiving channel and the second flow receiving channel are arranged in a mirror-symmetric manner.

[0011] In some embodiments, the inner side of the flow carrier is provided with a first flow channel and a second flow channel arranged symmetrically to each other. The first flow channel is connected to the first output pipe, and the second flow channel is connected to the second output pipe.

[0012] In some embodiments, the first flow channel and the first liquid supply channel are arranged in a mirror-symmetric manner, and the second flow channel and the second liquid supply channel are arranged in a mirror-symmetric manner.

[0013] In some embodiments, there are two first flow tubes and two second flow tubes; there are two first wheels and two second wheels, with the rotation axis of each first wheel parallel to the rotation axis of any second wheel, and the first wheels and second wheels are evenly spaced apart from each other along the rotation direction of the rotating frame.

[0014] In some embodiments, the check valve is a duckbill valve, with at least a portion of the duckbill valve's spout exposed to the flow receiving mechanism; the drive is a motor.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0017] Figure 1 This is a partial exploded view of an embodiment of a liquid injection device for a washing machine according to the present invention.

[0018] Figure 2 This is a structural diagram of the cover assembly of an embodiment of the liquid injection device for a washing machine according to the present invention.

[0019] Figure 3 This is a structural diagram of the cover fitting from another perspective of an embodiment of the liquid injection device for a washing machine according to the present invention.

[0020] Figure 4 This is a structural diagram of the flow-carrying component of an embodiment of a liquid injection device for a washing machine according to the present invention.

[0021] Figure 5 This is a structural diagram of the flow-carrying component from another perspective of an embodiment of a liquid injection device for a washing machine according to the present invention.

[0022] Reference numerals in the attached drawings: Injection device 100; Drive unit 1; Rotating frame 2; First wheel 3; Second wheel 4; First flow tube 5; Second flow tube 6; First inlet 7; First outlet 8; Second flow tube 6; Second inlet 9; Second outlet 10; First receiving pipe 11; Second receiving pipe 12; First input pipe 13; First output pipe 14; Second input pipe 15; Second output pipe 16; First supply pipe 17; Second supply pipe 18; One-way valve 19; Cover 20; Flow receiving component 21; First receiving channel 22; Second receiving channel 23; First supply channel 24; Second supply channel 25; First receiving channel 26; Second receiving channel 27; First delivery channel 28; Second delivery channel 29; Positioning shell 30; First shell 31; Second shell 32; First inner shell 33; Second inner shell 34. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] See Figure 1 The liquid injection device 100 for a washing machine provided in this embodiment includes a main housing, a driving component 1, a rotating frame 2, a first wheel 3, a second wheel 4, a first flow tube 5, a second flow tube 6, and a receiving mechanism. The driving component 1 is assembled into the main housing, and the drive shaft of the driving component 1 is connected to the rotating frame 2. The rotating frame 2 is located inside the main housing. The first wheel 3 and the second wheel 4 are rotatably engaged with the main housing. The first flow tube 5 is pressed by the first wheel 3, and the second flow tube 6 is pressed by the second wheel 4. The rotating frame 2 is an integrally formed part.

[0025] The first flow pipe 5 is provided with a first inlet 7 and a first outlet 8, the second flow pipe 6 is provided with a second inlet 9 and a second outlet 10, and the flow receiving mechanism is provided with a first receiving pipe 11, a second receiving pipe 12, a first input pipe 13, a first output pipe 14, a second input pipe 15 and a second output pipe 16. The first receiving pipe 11 is connected to the first input pipe 13, the second receiving pipe 12 is connected to the second input pipe 15, the first inlet 7 is connected to the first input pipe 13, the first outlet 8 is connected to the first output pipe 14, the second inlet 9 is connected to the second input pipe 15, and the second outlet 10 is connected to the second output pipe 16.

[0026] The first inlet section 7, the second outlet section 10, the first input pipe 13 and the second output pipe 16 are respectively arranged on the first side of the rotating frame 2, and the first outlet section 8, the second inlet section 9, the first output pipe 14 and the second input pipe 15 are respectively arranged on the second side of the rotating frame 2. The first side and the second side are arranged horizontally opposite each other.

[0027] The receiving mechanism is also provided with a first liquid supply pipe 17 and a second liquid supply pipe 18. The first liquid supply pipe 17 and the second liquid supply pipe 18 are respectively equipped with a one-way valve 19 of the liquid injection device. The first liquid supply pipe 17 is connected to the first output pipe 14, and the second liquid supply pipe 18 is connected to the second output pipe 16.

[0028] The one-way valve 19 is a duckbill valve, with at least a portion of the duckbill valve's spout exposed to the flow receiving mechanism; the drive component 1 is a motor.

[0029] The current receiving mechanism includes a cover 20 and a current receiving component 21 that are welded together, and the cover 20 and the current receiving component 21 are integrally formed parts.

[0030] The cover 20 is provided with a first inlet pipe 11 and a second inlet pipe 12, and the flow receiving component 21 is provided with a first inlet pipe 13, a first outlet pipe 14, a second inlet pipe 15 and a second outlet pipe 16.

[0031] The inner side of the cover 20 is provided with a first flow channel 22 and a second flow channel 23 arranged symmetrically with each other. The first flow channel 22 is connected to the first flow pipe 11, and the second flow channel 23 is connected to the second flow pipe 12.

[0032] The inner side of the cover 20 is provided with a first liquid supply channel 24 and a second liquid supply channel 25 arranged symmetrically to each other. The first liquid supply channel 24 is connected to the first liquid supply pipe 17, and the second liquid supply channel 25 is connected to the second liquid supply pipe 18.

[0033] The inner side of the flow-carrying component 21 is provided with a first flow-carrying channel 26 and a second flow-carrying channel 27 arranged symmetrically with each other. The first flow-carrying channel 26 is connected to the first input pipe 13, and the second flow-carrying channel 27 is connected to the second input pipe 15.

[0034] The first flow channel 26 and the first flow receiving channel 22 are arranged in a mirror-symmetric manner, and the second flow channel 27 and the second flow receiving channel 23 are arranged in a mirror-symmetric manner.

[0035] The inner side of the flow carrier 21 is provided with a first flow channel 28 and a second flow channel 29 arranged symmetrically to each other. The first flow channel 28 is connected to the first output pipe 14, and the second flow channel 29 is connected to the second output pipe 16.

[0036] The first flow channel 28 and the first liquid supply channel 24 are arranged in a mirror-symmetric manner, and the second flow channel 29 and the second liquid supply channel 25 are arranged in a mirror-symmetric manner.

[0037] The wall end face of the first receiving channel 22 abuts against the wall end face of the first receiving channel 26 to form a first inlet channel, which connects the first receiving pipe 11 and the first input pipe 13.

[0038] The wall end face of the second receiving channel 23 abuts against the wall end face of the second receiving channel 27 to form a second inlet channel, which connects the second receiving pipe 12 and the second input pipe 15.

[0039] The wall end face of the first liquid supply channel 24 abuts against the wall end face of the first flow channel 28 to form a first outlet channel, which connects the first liquid supply pipe 17 and the first output pipe 14.

[0040] The wall end face of the first inlet channel 22 abuts against the wall end face of the second outlet channel 29 to form a second inlet channel, and the second outlet channel connects the second liquid supply pipe 18 and the second output pipe 16.

[0041] The number of first flow tubes 5 and second flow tubes 6 are two each; the number of first wheels 3 and second wheels 4 are two each. The rotation axis of each first wheel 3 is parallel to the rotation axis of any second wheel 4. The first wheels 3 and second wheels 4 are evenly spaced apart from each other along the rotation direction of the rotating frame 2.

[0042] The housing includes a positioning shell 30, a first housing 31 and a second housing 32. The first housing 31 and the second housing 32 are threaded together. The positioning shell 30 is snapped into the first housing 31 to position the drive unit 1 between the first housing 31 and the positioning shell 30.

[0043] The liquid injection device 100 also includes a first inner housing 33 and a second inner housing 34 that are threaded together. The first inner housing 33 and the second inner housing 34 form an inner housing. The rotating frame 2 is located inside the inner housing, and a portion of the first flow tube 5 and a portion of the second flow tube 6 are exposed outside the inner housing.

[0044] When the driving component 1 drives the rotating frame 2 to rotate in the first direction, the first wheel 3 applies pressure to the first flow pipe 5, drawing the laundry detergent placed in the first independent chamber of the washing machine into the first receiving pipe 11. The laundry detergent then flows sequentially through the first input pipe 13, the first inlet 7, the first outlet 8, the first output pipe 14, and the first supply pipe 17 before flowing out through the one-way valve 19. The fabric softener placed in the second independent chamber of the washing machine is not drawn out because the second supply pipe 18 is fitted with the one-way valve 19, thus preventing air from flowing back into the second independent chamber. When the driving component 1 drives the rotating frame 2 to rotate in the second direction, the second wheel 4 applies pressure to the second flow pipe 6, drawing the laundry detergent placed in the first independent chamber of the washing machine into the first receiving pipe 11. Fabric softener from the two independent chambers is drawn into the second inlet pipe 12, and laundry detergent flows sequentially through the second inlet pipe 15, the second inlet section 9, the second outlet section 10, the second outlet pipe 16, and the second supply pipe 18 before flowing out through the one-way valve 19. Laundry detergent placed in the first independent chamber inside the washing machine is not drawn out. Since the first supply pipe 17 is fitted with the one-way valve 19, air backflow into the first independent chamber is prevented. Therefore, the dual-pump structure of the prior art is eliminated, and the extraction of washing liquid is achieved with a single rotating frame 2 structure. This reduces costs and also reduces the space occupied, making it easier to reduce the size of the washing machine and improving the overall market applicability of the washing machine.

[0045] When the washing machine drawer is pulled out, the first inlet pipe 11 and the second inlet pipe 12 are no longer connected to the independent cavity inside the washing machine. The liquid in the drawer box side pipe will flow back into the box and level up due to atmospheric pressure and gravity, while the liquid in the peristaltic pump side pipe will remain in the pipe due to the pump shut-off action and the surface tension of the liquid.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0047] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

[0048] Finally, it should be emphasized that the present invention is not limited to the above-described embodiments. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid injection device for a washing machine, characterized by, The injection device comprises a main housing, a driving member, a rotating frame, a first wheel, a second wheel, a first flow pipe, a second flow pipe and a flow connecting mechanism, The driving member is assembled in the main housing, the driving shaft of the driving member is connected to the rotating frame, the rotating frame is located in the main housing, the first wheel and the second wheel are rotatably connected to the main housing, the first flow pipe is pressed by the first wheel, and the second flow pipe is pressed by the second wheel; The first flow pipe is provided with a first inlet and a first outlet, the second flow pipe is provided with a second inlet and a second outlet, the flow connecting mechanism is provided with a first flow pipe, a second flow pipe, a first input pipe, a first output pipe, a second input pipe and a second output pipe, the first flow pipe is connected to the first input pipe, the second flow pipe is connected to the second input pipe, the first inlet is connected to the first input pipe, the first outlet is connected to the first output pipe, the second inlet is connected to the second input pipe, and the second outlet is connected to the second output pipe; The first inlet, the second outlet, the first input pipe and the second output pipe are arranged on a first side of the rotating frame, the first outlet, the second inlet, the first output pipe and the second input pipe are arranged on a second side of the rotating frame, and the first side and the second side are horizontally arranged relative to each other; The flow connecting mechanism is further provided with a first liquid supply pipe and a second liquid supply pipe, the first liquid supply pipe and the second liquid supply pipe are respectively provided with a one-way valve of the liquid injection device, the first liquid supply pipe is connected to the first output pipe, and the second liquid supply pipe is connected to the second output pipe; The flow connecting mechanism comprises a cover member and a flow receiving member connected to each other, the inner side of the cover member is provided with a first flow channel and a second flow channel arranged point-symmetrically relative to each other, the first flow channel is connected to the first flow pipe, and the second flow channel is connected to the second flow pipe; The inner side of the cover member is provided with a first liquid supply channel and a second liquid supply channel arranged point-symmetrically relative to each other, the first liquid supply channel is connected to the first liquid supply pipe, and the second liquid supply channel is connected to the second liquid supply pipe; The number of the first flow pipe and the second flow pipe is two respectively; The number of the first wheel and the second wheel is two respectively, the rotation axis of each first wheel is parallel to the rotation axis of any second wheel, and the first wheel and the second wheel are uniformly and evenly spaced relative to each other along the rotation direction of the rotating frame; The first flow pipe and the second flow pipe are both arranged on the cover member, and the first input pipe, the first output pipe, the second input pipe and the second output pipe are all arranged on the flow receiving member.

2. The injection device for a washing machine according to claim 1, wherein: The inner side of the flow receiving member is provided with a first flow receiving channel and a second flow receiving channel arranged point-symmetrically relative to each other, the first flow receiving channel is connected to the first input pipe, and the second flow receiving channel is connected to the second input pipe.

3. The injection device for a washing machine according to claim 2, wherein: The first flow receiving channel and the first flow receiving channel are arranged in mirror image symmetry with each other, and the second flow receiving channel and the second flow receiving channel are arranged in mirror image symmetry with each other.

4. The liquid injection device for washing machine according to claim 3, characterized in that: The inner side of the flow receiving member is provided with a first flow sending channel and a second flow sending channel arranged in point symmetry with each other, the first flow sending channel is communicated with the first output pipe, and the second flow sending channel is communicated with the second output pipe.

5. The liquid injection device for washing machine according to claim 4, characterized in that: The first flow sending channel and the first liquid supply channel are arranged in mirror image symmetry with each other, and the second flow sending channel and the second liquid supply channel are arranged in mirror image symmetry with each other.

6. The liquid injection device for washing machine according to any one of claims 1 to 5, characterized in that: The one-way valve is a duckbill valve, at least a part of the mouth of the duckbill valve is exposed to the flow receiving mechanism; The driving member is an electric motor.

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