Dropping device and clothes processing equipment
By designing a delivery device that uses one power unit to control two delivery units, the problems of complex control, high cost and inaccurate quantification in the prior art are solved, and precise control of delivery and improved user experience are achieved.
Patent Information
- Application Number
- CN202311327354.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-13
- Publication Date
- 2025-04-15
AI Technical Summary
The automatic delivery device of existing clothing processing equipment requires multiple power sources for different types of clothing processing agents, resulting in complex control, high cost, large equipment space, and problems such as inaccurate quantitative measurement and working noise.
A drop device is designed to control two drop units to select one for drop through a power unit, and the drop is achieved by using a rotor extrusion hose, combining thread fit and elastic clamping structure to ensure sealing and precise control while avoiding the generation of strange sounds.
The optional delivery of two delivery units is realized through one power source, which simplifies the control process, reduces cost and space occupation, and ensures quantitative accuracy of delivery and improves user experience.
Smart Images

Figure CN119824653A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of clothing processing equipment, and in particular, relates to a feeding device and clothing processing equipment. Background Art
[0002] As users' demands for clothing treatment become increasingly diverse, different types of clothing treatment agents may need to be added during the operation of clothing treatment equipment. In order to simplify the user's operation process and improve the automation of clothing treatment equipment, existing clothing treatment equipment often has a function of automatically adding clothing treatment agents.
[0003] However, the automatic dispensing devices currently used in clothing treatment equipment often need to provide corresponding power sources, such as dispensing pumps, for each type of clothing treatment equipment in order to dispense different types of clothing treatment agents, so as to dispense different types of clothing treatment agents separately.
[0004] The above solution requires different delivery pumps to be controlled separately, which makes the delivery control process more complicated, and also causes high production costs. At the same time, setting two or more delivery pumps will inevitably take up a large space, resulting in a large installation space for the automatic delivery device, which is not conducive to the miniaturization of the entire clothing processing equipment.
[0005] The Chinese patent application number CN201310415596.7 discloses an automatic detergent adding device and a washing device, wherein a ratchet and a pawl cooperate to realize that a power source drives the driving shaft to rotate forward and reverse, and accordingly the first pumping unit or the second pumping unit is operated to add detergent. At the same time, in the scheme disclosed in the patent, a guide groove is provided on the side wall of the pump chamber, a cam with an axis eccentric to the axis of the guide groove is provided in the pump chamber, and a telescopic head is slidably inserted on the outer periphery of the cam; during the rotation of the cam, the telescopic head performs telescopic movement under the constraint of the guide groove, so that the volume of the closed space formed by every two adjacent telescopic heads and the pump chamber is constantly changing, and then the suction and discharge of detergent is realized through the change of the closed space volume.
[0006] However, in the above scheme, since the telescopic head performs telescopic movement relative to the cam, when the telescopic head extends out of the cam, for two adjacent closed spaces, the gap between the telescopic head and the side wall of the cam is large, making it difficult to achieve strict sealing, which may cause the two closed spaces to be connected and affect the quantitative addition of detergent. In addition, in order not to affect the process of adding detergent, the drive shaft needs to provide a higher speed. But at the same time, one of the overrunning clutches composed of a ratchet and a pawl is in a separated state without transmitting torque, which will produce obvious working noise and affect the user experience.
[0007] In view of this, the present invention is proposed. Summary of the invention
[0008] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dispensing device and a clothing processing equipment, which can control two dispensing units to select one for dispensing through a power unit, has a reliable structure, accurate quantitative determination, and does not produce abnormal working noise.
[0009] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:
[0010] A delivery device, comprising:
[0011] A first delivery unit, comprising a first delivery mechanism and a first clutch mechanism;
[0012] A second delivery unit includes a second delivery mechanism and a second clutch mechanism whose clutch state is opposite to that of the first clutch mechanism;
[0013] A driving shaft, driving the first delivery mechanism through the first clutch mechanism, and driving the second delivery mechanism through the second clutch mechanism;
[0014] The first clutch mechanism comprises:
[0015] Transmission wheel;
[0016] A clutch member, movably mounted on the drive shaft;
[0017] The first delivery unit has a first cavity, and the first delivery mechanism is arranged in the first cavity, including:
[0018] A rotating wheel is installed in the outer peripheral area of the transmission wheel and connected to the transmission wheel;
[0019] A hose, surrounding the outer circumference of the transmission wheel and arranged between the rotating wheel and the inner wall of the first cavity;
[0020] The driving shaft rotates in a first direction, driving the clutch to move along the axial direction of the driving shaft toward the transmission wheel, and cooperates with the transmission wheel in a limited position. The clutch rotates with the driving shaft to push the transmission wheel to rotate synchronously, and the rotating wheel rotates with the transmission wheel to squeeze the hose for delivery;
[0021] The driving shaft rotates in a second direction opposite to the first direction, driving the clutch member to move axially along the driving shaft and separate from the transmission wheel, and the first delivery mechanism does not deliver.
[0022] Further, the inner wall of the circumferential side of the first cavity at least partially extends along a circular arc, and the transmission wheel has a circular outer contour that is cocentric with the inner wall of the circumferential side of the first cavity;
[0023] An outwardly protruding connection portion is arranged on the outer peripheral wall of the transmission wheel, and the rotating wheel is rotatably mounted on the connection portion, and the rotation axis of the rotating wheel is parallel to the rotation axis of the transmission wheel.
[0024] Furthermore, the outer diameter of the hose is smaller than the spacing distance between the outer peripheral wall of the transmission wheel and the peripheral inner wall of the first cavity, and larger than the shortest distance between the connecting portion and the peripheral inner wall of the first cavity.
[0025] Furthermore, the first dispensing unit is provided with a liquid inlet and a liquid outlet communicating with both sides of the first cavity, the liquid suction end of the hose is inserted into the liquid inlet, and the liquid discharge end of the hose is inserted into the liquid outlet;
[0026] A stop structure is provided inside the liquid inlet, and the liquid suction end of the hose stops at the stop structure inside the liquid inlet; and / or a stop structure is provided inside the liquid outlet, and the liquid discharge end of the hose stops at the stop structure inside the liquid outlet.
[0027] Further, the liquid inlet includes a large diameter section close to the inner side of the first cavity, and a small diameter section close to the outer side of the first cavity; the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, and the stop structure includes a variable diameter stop surface formed at the connection between the large diameter section and the small diameter section; the outer diameter of the hose is larger than the inner diameter of the large diameter section, and the liquid suction end is inserted into the large diameter section of the liquid inlet and abuts against the variable diameter stop surface;
[0028] And / or, the liquid outlet includes a large diameter section close to the inner side of the first cavity, and a small diameter section close to the outer side of the first cavity; the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, and the stop structure includes a variable diameter stop surface formed at the connection between the large diameter section and the small diameter section; the outer diameter of the hose is larger than the inner diameter of the large diameter section, and the discharge end is inserted into the large diameter section of the liquid outlet and abuts against the variable diameter stop surface.
[0029] Furthermore, the drive shaft has a threaded section, and the clutch member can be spirally mounted on the threaded section of the drive shaft, and moves closer to or farther from the transmission wheel as the drive shaft rotates;
[0030] When the clutch moves to one end of the threaded section close to the transmission wheel, the clutch and the transmission wheel are limitedly matched, and the drive shaft continues to rotate in the same direction to drive the clutch to rotate synchronously; when the clutch moves to the other end of the threaded section, the clutch is completely separated from the transmission wheel.
[0031] Furthermore, the first clutch mechanism further comprises an elastic clamping assembly; when the clutch member is located between the two ends of the threaded segment, the elastic force provided by the elastic clamping assembly is used to clamp the clutch member to remain stationary in the circumferential direction.
[0032] Further, the elastic clamping assembly comprises a first elastic member and a second elastic member which are arranged parallel to the axial direction of the driving shaft;
[0033] The transmission wheel is provided with a through hole which penetrates axially along the driving shaft; the first elastic member is provided on the side of the clutch member facing the transmission wheel and penetrates the through hole, one end of which is fixed on the inner wall of the first cavity and the other end of which is abutted against the clutch member; the second elastic member is provided on the side of the clutch member facing away from the transmission wheel, one end of which is fixed on the inner wall of the first cavity and the other end of which is abutted against the clutch member.
[0034] Further, the second delivery mechanism has the same structure as the first delivery mechanism; and / or the second clutch mechanism has the same structure as the first clutch mechanism.
[0035] A clothes processing device comprises the above-mentioned placing device.
[0036] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.
[0037] In the present invention, when the driving shaft rotates forward or reversely, one of the first and second clutch mechanisms can be controlled to be in an engaged state and the other can be controlled to be in a disengaged state, so that the first and second delivery units can be controlled to selectively deliver one of them, thereby achieving the purpose of using one power source to control the two delivery units to selectively deliver one of them, simplifying the control and reducing the cost.
[0038] In the present invention, the first delivery mechanism controls delivery by means of a rotating wheel squeezing a hose, which is similar to the working principle of a peristaltic pump, has good and reliable sealing performance, and is conducive to accurately controlling the delivery amount. A variable diameter stop surface is formed by changing the inner diameter at the liquid inlet and / or the liquid outlet, and the end of the hose abuts against the variable diameter stop surface to achieve a limiting effect, which can prevent the position of the hose from changing due to the squeezing of the rotating wheel, and ensure that the internal structure of the delivery device is stable and reliable.
[0039] In the present invention, the driving shaft and the clutch are threadedly matched, and the clutch can be driven to move closer to or away from the transmission wheel by the forward and reverse rotation of the driving shaft. When the first delivery unit is controlled not to deliver, the clutch and the transmission wheel are in a completely separated state, so that no abnormal sound is generated during the operation, thereby improving the user experience.
[0040] In the present invention, the clutch is clamped from both sides by an elastic clamping structure, which can not only limit the circumferential rotation of the clutch, but also the elastic clamping structure can be retracted and will not affect the movement of the clutch along the drive shaft toward or away from the transmission wheel. The structure is simple and effective.
[0041] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:
[0043] Figure 1 is a schematic diagram of the structure of a delivery device in an embodiment of the present invention;
[0044] Figure 2 The present invention Figure 1 Schematic diagram of the AA section (the state of the first delivery unit performing delivery);
[0045] Figure 3 The present invention Figure 1 Schematic diagram of the AA section (the state where the first delivery unit is not delivering);
[0046] Figure 4 is a partial cross-sectional view of the delivery device at the first liquid inlet and the first liquid outlet in an embodiment of the present invention;
[0047] Figure 5 The delivery device in the embodiment of the present invention is along Figure 2 Cross-sectional view along the BB axis.
[0048] In the figure: 1, first delivery unit; 2, second delivery unit; 3, power unit; 110, first shell; 111, first liquid inlet; 112, first liquid outlet; 113, pre-positioning structure; 115, buckle; 116, connecting hole; 117, variable diameter stop surface; 118, first cavity; 120, second shell; 121, second liquid inlet; 122, second liquid outlet; 128, second cavity; 130, cover; 200, drive shaft; 310, motor; 311, output shaft; 320, mounting shell; 410, transmission wheel; 416, connecting part; 417, rotating wheel; 450, clutch; 452, clamping convex; 460, clamping arm; 461, clamping groove; 462, rotating shaft; 463, mounting seat; 600, hose; 601, liquid suction end; 602, liquid discharge end.
[0049] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.
[0051] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] Embodiment 1
[0054] like Figures 1 to 5 As shown, this embodiment provides a dispensing device and a clothing treatment device having the dispensing device. The clothing treatment device can be a pulsator washing machine, a drum washing machine, a washer-dryer, etc., and the dispensing device can be used to dispense clothing treatment agents such as detergents and softeners.
[0055] In this embodiment, the dispensing device includes a first dispensing unit 1 and a second dispensing unit 2, both of which can be used to dispense different types of clothing treatment agents, so that the clothing treatment device has at least two automatic dispensing functions for clothing treatment agents. For example, the dispensing device dispenses detergent through the first dispensing unit 1 and dispenses softener through the second dispensing unit 2. When the clothing treatment device runs a laundry program, the first dispensing unit 1 is controlled to perform a dispensing operation in the washing stage, and the second dispensing unit 2 is controlled to perform a dispensing operation in the rinsing stage, so that dispensing can be performed separately for different operation stages of the laundry program.
[0056] Specifically, the first delivery unit 1 and the second delivery unit 2 are stacked up and down, wherein the first delivery unit 1 includes a first delivery mechanism and a first clutch mechanism, and the second delivery unit 2 includes a second delivery mechanism and a second clutch mechanism, and the clutch state of the second clutch mechanism is opposite to the clutch state of the first clutch mechanism. The delivery device also includes a drive shaft 200, and the drive shaft 200 drives the first delivery mechanism through the first clutch mechanism, and drives the second delivery mechanism through the second clutch mechanism.
[0057] It can be understood that the above-mentioned clutch state means oppositely that: when the first clutch mechanism is in the engaged state, that is, the drive shaft 200 can transmit torque through the first clutch mechanism, the second clutch mechanism is in the disengaged state, that is, the drive shaft 200 cannot transmit torque through the second clutch mechanism, and vice versa.
[0058] Furthermore, the dispensing device of this embodiment also includes a power unit 3, which is connected to the drive shaft 200, and the drive shaft 200 can rotate under the driving action of the power unit 3. The dispensing device has the above structure, which enables the same power unit 3 to drive the drive shaft 200 to rotate forward and reverse, that is, to transmit torque to one of the first dispensing unit 1 and the second dispensing unit 2, and then control the two to perform the dispensing operation. Compared with the method in the prior art that requires multiple dispensing pumps to control the dispensing of different types of clothing treatment agents respectively, the solution of this embodiment reduces the number of drive devices set, the control is simpler, and it helps to reduce costs.
[0059] In this embodiment, the first clutch mechanism comprises a transmission wheel 410 and a clutch member 450, wherein the clutch member 450 is movably mounted on the drive shaft 200. The drive shaft 200 and the clutch member 450 are in transmission cooperation, and the rotation of the drive shaft 200 can drive the clutch member 450 to move along the axial direction of the drive shaft 200 to approach or move away from the transmission wheel 410.
[0060] Furthermore, the first delivery unit 1 has a first cavity 118, and the first delivery mechanism is arranged in the first cavity 118, including a rotating wheel 417 and a hose 600. The rotating wheel 417 is installed in the peripheral area of the transmission wheel 410 and connected to the transmission wheel 410, and the hose 600 surrounds the periphery of the transmission wheel 410 and is arranged between the rotating wheel 417 and the inner wall of the first cavity 118.
[0061] The hose 600 is made of elastic material, such as a rubber tube. The rotating wheel 417 and the driving wheel 410 are both located inside the area surrounded by the hose 600. When the rotating wheel 417 rotates with the driving wheel 410, it can roll along the hose 600 and squeeze the tube wall of the hose 600 to deform. In the area after the rotating wheel 417 passes, the tube wall of the hose 600 is no longer squeezed and can return to its original state under the action of its own elasticity.
[0062] During the operation of the delivery device, if the drive shaft 200 moves in the first direction (i.e. Figure 2 ) can drive the clutch 450 to move axially along the drive shaft 200 toward the transmission wheel 410, so that the clutch 450 and the transmission wheel 410 are limitedly matched. At this time, the drive shaft 200 continues to rotate, and the clutch 450 can rotate with the drive shaft 200, thereby driving the transmission wheel 410 to rotate synchronously. The rotating wheel 417 installed on the periphery of the transmission wheel 410 rotates with the transmission wheel 410, and can roll and squeeze the hose 600 to deform, so that the clothing treatment agent is sucked in by the liquid suction end 601 of the hose 600, and the clothing treatment agent is discharged from the liquid discharge end 602 thereof, thereby realizing the continuous suction and delivery of the clothing treatment agent.
[0063] If the drive shaft 200 is in a second direction opposite to the first direction (i.e. Figure 3 When the clutch 450 rotates in the clockwise direction (as shown in the figure), the clutch 450 is driven to move in the opposite direction along the axial direction of the drive shaft 200 away from the transmission wheel 410, so that the clutch 450 is completely separated from the transmission wheel 410. At this time, the transmission wheel 410 does not rotate with the drive shaft 200 but remains stationary, and the first delivery mechanism does not deliver.
[0064] In this embodiment, the first delivery mechanism uses the rotating wheel 417 to squeeze the hose 600 to control the delivery, which is similar to the working principle of the peristaltic pump, has good and reliable sealing performance, and is conducive to accurately controlling the delivery amount. When the first clutch mechanism is in the combined state, the clutch 450 and the transmission wheel 410 are limited to cooperate, so that the transmission wheel 410 rotates with the drive shaft 200. When the first clutch mechanism switches from the combined state to the separated state, the drive shaft 200 can drive the clutch 450 away from the transmission wheel 410, and then when the first clutch mechanism is in the separated state, the clutch 450 and the transmission wheel 410 are completely separated. Compared with the clutch structure formed by the ratchet and pawl in the prior art, when the delivery device of this embodiment is working, when the first delivery mechanism is not delivering, since the clutch 450 and the transmission wheel 410 are completely separated and not in contact, no abnormal sound will be generated, which improves the user experience.
[0065] In a further solution of this embodiment, the inner wall of the circumference of the first cavity 118 at least partially extends along an arc, and the transmission wheel 410 has a circular outer profile that is cocentric with the inner wall of the circumference of the first cavity 118. A connecting portion 416 protruding outward is provided on the outer circumferential wall of the transmission wheel 410, and a rotating wheel 417 is rotatably mounted on the connecting portion 416, and the rotating axis of the rotating wheel 417 is parallel to the rotating axis of the transmission wheel 410.
[0066] Specifically, in this embodiment, the first cavity 118 is a circular cavity, and the transmission wheel 410 is a circular turntable co-centrically arranged with the first cavity 118 .
[0067] In the above scheme, the transmission wheel 410 and the first cavity 118 are arranged cocentrically, which can ensure that the interval between the outer wall of the transmission wheel 410 and the circumferential inner wall of the first cavity 118 is equal everywhere along the circumferential direction. Therefore, when the rotating wheel 417 moves circumferentially in the first cavity 118 as the transmission wheel 410 rotates, the squeezing effect on the hose 600 remains basically consistent everywhere, further ensuring the delivery effect.
[0068] Furthermore, the outer diameter of the hose 600 is smaller than the spacing distance between the outer peripheral wall of the driving wheel 410 and the peripheral inner wall of the first cavity 118 , and larger than the shortest distance between the connecting portion 416 and the peripheral inner wall of the first cavity 118 .
[0069] Specifically, in this embodiment, the connection portion 416 is a plate-like structure protruding from the outer peripheral wall of the transmission wheel 410, and one of the plate-like structures is respectively provided on the upper and lower sides close to the transmission wheel 410. The plate-like structure is provided with a shaft protrusion at a position close to the outer periphery of the semicircle, and the rotating wheel 417 is cylindrical, and the end is rotatably mounted on the shaft protrusion. In this way, the rotating wheel 417 partially protrudes from the farthest end of the connection portion 416 from the outer peripheral wall of the transmission wheel 410.
[0070] When the hose 600 is installed in the first cavity 118, it is basically in contact with the inner wall of the first cavity 118. According to the outer diameter of the hose 600, the inner side of the hose 600 is spaced from the outer wall of the transmission wheel 410. When the rotating wheel 417 moves with the transmission wheel 410, the width of the space for accommodating the hose 600 is reduced at the position where the rotating wheel 417 passes, thereby squeezing the hose 600.
[0071] In a detailed solution of this embodiment, Figure 2 and Figure 3 As shown, three rotating wheels 417 are evenly distributed along the circumference of the driving wheel 410, and the interval between two adjacent rotating wheels 417 is 120 degrees. A certain amount of laundry treatment agent is stored in the area between two adjacent rotating wheels 417 on the hose 600. When the rotating wheels 417 move with the driving wheel 410, the laundry treatment agent can be pushed to flow along the hose 600 and finally discharged.
[0072] In this embodiment, a first liquid inlet 111 and a first liquid outlet 112 are provided on the first dispensing unit 1 to connect the inside and outside of the first cavity 118 . The liquid suction end 601 of the hose 600 is inserted into the first liquid inlet 111 , and the liquid discharge end 602 of the hose 600 is inserted into the first liquid outlet 112 .
[0073] When the dispensing device is used on a clothes treatment device, the first liquid inlet 111 is used to connect to a liquid storage box for containing clothes treatment agent, and the first liquid outlet 112 is connected to a washing chamber for the clothes treatment agent. When the driving shaft 200 rotates clockwise to drive the transmission wheel 410 and the rotating wheel 417 on its periphery to rotate synchronously, the clothes treatment agent can be drawn from the liquid storage box through the first liquid inlet 111, and transported to the first liquid outlet 112 along the hose 600, and finally put into the washing chamber through the first liquid outlet 112, thereby realizing the automatic dispensing function of the clothes treatment agent.
[0074] Furthermore, stop structures are respectively provided inside the first liquid inlet 111 and the first liquid outlet 112 , and the liquid suction end 601 of the hose 600 stops at the stop structure inside the first liquid inlet 111 , and the liquid discharge end 602 stops at the stop structure inside the first liquid outlet 112 .
[0075] As a specific implementation of this embodiment, the first liquid inlet 111 includes a large diameter section near the inside of the first cavity 118, and a small diameter section near the outside of the first cavity 118. The inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, so that a variable diameter stop surface 117 is formed at the connection between the large diameter section and the small diameter section as the stop structure. The outer diameter of the hose 600 is larger than the inner diameter of the large diameter section in the first liquid inlet 111. When assembled, its liquid suction end 601 is inserted into the large diameter section of the first liquid inlet 111 and abuts against the variable diameter stop surface 117.
[0076] Similarly, the first liquid outlet 112 also includes a large diameter section near the inside of the first cavity 118 and a small diameter section near the outside of the first cavity 118, and the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, and a variable diameter stop surface 117 is formed at the connection between the two as a stop structure. The outer diameter of the hose 600 is also larger than the inner diameter of the large diameter section in the first liquid outlet 112. When assembled, its discharge end 602 is inserted into the large diameter section of the first liquid outlet 112 and abuts against the variable diameter stop surface 117.
[0077] In the above solution, the outer diameter of the hose 600 is larger than the inner diameter of the large diameter section of the first liquid inlet 111 and the first liquid outlet 112, thereby achieving interference fit and natural sealing without the need for additional sealing treatment. At the same time, since the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, the outer diameter of the hose 600 is also larger than the inner diameter of the small diameter section, so that both ends of the hose 600 can abut against the variable diameter stop surface 117.
[0078] By setting the inner holes of the first liquid inlet 111 and the first liquid outlet 112 as variable diameter holes with a stepped structure, a variable diameter stop surface 117 is formed. When the rotating wheel 417 rolls and squeezes the hose 600 along the circumferential direction as the driving wheel 410 rotates, the position change of the hose 600 caused by the squeezing of the rotating wheel 417 can be effectively prevented, thereby ensuring that the delivery structure is stable and reliable.
[0079] In this embodiment, the second dispensing mechanism of the second dispensing unit 2 can have the same structure as the first dispensing mechanism. That is, a hose 600 is also provided in the second cavity 128 of the second dispensing unit 2, and a rotating wheel 417 for squeezing the hose 600 to control the dispensing. The second dispensing unit 2 is provided with a second liquid inlet 121 and a second liquid outlet 122, and the automatic dispensing of the laundry treatment agent is achieved by controlling the rotating wheel 417 to roll and squeeze along the hose 600. In the second dispensing unit 2, the inner holes of the second liquid inlet 121 and the second liquid outlet 122 can also be set as step-structured variable-diameter holes, so as to limit the hose 600.
[0080] Furthermore, the rotating wheel 417 in the second dispensing unit 2 is in transmission connection with the second clutch mechanism, and when the driving shaft 200 rotates counterclockwise to control the first dispensing mechanism to dispense, the second clutch mechanism is in a disengaged state. When the driving shaft 200 rotates clockwise, the second clutch mechanism switches to a coupled state, and can drive the rotating wheel 417 to roll along the hose 600, squeezing the hose 600 to dispense the laundry treatment agent.
[0081] In a further solution of this embodiment, the delivery device further comprises a first shell 110, a second shell 120 and a cover 130 connected in sequence. The upper side of the second shell 120 is open, and the cover 130 is buckled on the open part of the second shell 120 to form a second cavity 128 of the second delivery unit 2. The upper side of the first shell 110 is open, and the lower side of the second shell 120 is buckled on the open part of the first shell 110 to form a first cavity 118 of the first delivery unit 1.
[0082] Specifically, the first housing 110 is provided with a connection hole 116, which is through-through, and can be connected to the second housing 120 through an assembly part (such as a fastening screw) passing through the connection hole 116, thereby connecting and fixing the first housing 110 and the second housing 120. The second housing 120 and the cover 130 can also be fixed in a similar connection manner.
[0083] Furthermore, the power unit 3 is arranged at the lower part of the first delivery unit 1, and includes a mounting shell 320, and a motor 310 arranged inside the mounting shell 320. The mounting shell 320 is connected and fixed to the first housing 110, and the output shaft 311 of the motor 310 passes through the lower part of the first housing 110 and is connected to the drive shaft 200, thereby driving the drive shaft 200.
[0084] Specifically, the lower end of the drive shaft 200 is connected to the output shaft 311 and passes through the bottom walls of the first shell 110 and the second shell 120 in sequence. The upper end of the drive shaft 200 is inserted into the positioning groove on the lower surface of the cover body 130 and can rotate. By providing the positioning groove on the cover body 130, the upper end of the drive shaft 200 is limited, ensuring the position stability of the upper end of the drive shaft 200.
[0085] Furthermore, a buckle 115 is provided on the first shell 110, and the first shell 110 can be fixedly connected with the mounting shell 320 by the buckle 115. A positioning column is also provided on the lower side of the first shell 110, and a positioning hole is provided at a corresponding position on the mounting shell 320. The positioning column is inserted into the positioning hole, so that the connection between the first shell 110 and the mounting shell 320 is more stable.
[0086] Preferably, a raised pre-positioning structure 113 is further provided on the lower surface of the first housing 110. During the assembly process, the side wall of the mounting shell 320 can be first fitted on the pre-positioning structure 113, and then the position of the mounting shell 320 can be fine-tuned so that the buckle 115 and the positioning column on the first housing 110 can be correspondingly snapped into the corresponding positions on the mounting shell 320.
[0087] When the dispensing device described in this embodiment is used on a clothing treatment device, the first liquid inlet 111 and the second liquid inlet 121 are respectively connected to liquid storage boxes of different types of clothing treatment agents, and the first liquid outlet 112 and the second liquid outlet 122 are both connected to the washing chamber of the clothing treatment agent.
[0088] Specifically, taking a washing machine as an example, the first liquid inlet 111 can be connected to a liquid storage chamber for detergent, the second liquid inlet 121 can be connected to a liquid storage chamber for softener, and the first liquid outlet 112 and the second liquid outlet 122 can be connected to the washing tub of the washing machine. In this way, during the washing stage, the output shaft 311 of the power unit 3 rotates counterclockwise, and the detergent is sucked into the hose 600 in the first cavity 118 from the first liquid inlet 111, and then discharged into the washing tub from the first liquid outlet 112. During the rinsing stage, the output shaft 311 of the power unit 3 rotates clockwise, and the softener is sucked into the hose 600 in the second cavity 128 from the second liquid inlet 121, and then discharged into the washing tub from the second liquid outlet 122.
[0089] In this embodiment, the delivery device uses the same power unit 3 to control the delivery action of the two delivery units. The first delivery unit 1 and the second delivery unit 2 use the rotating wheel 417 to roll along the hose 600, squeeze the hose 600 to deform, and then complete the suction and discharge of the clothing treatment agent, which can achieve quantitative delivery of the clothing treatment agent, and the quantitative quantity is more accurate and reliable. The clutch 450 of the first clutch mechanism can move along the axial direction of the drive shaft 200 to move closer to or away from the transmission wheel 410, so that when the first clutch mechanism is in a disengaged state, the clutch 450 and the transmission wheel 410 are in a completely separated state, and no abnormal sound will be generated during the working process, and the user experience is better.
[0090] Embodiment 2
[0091] like Figures 1 to 5 As shown, this embodiment is a further limitation of the above-mentioned embodiment 1, and a threaded transmission method is adopted between the driving shaft 200 and the clutch member 450 of the first clutch mechanism.
[0092] Specifically, the driving shaft 200 has a threaded section, and the clutch member 450 can be spirally mounted on the threaded section of the driving shaft 200 , so as to approach or move away from the transmission wheel 410 as the driving shaft 200 rotates.
[0093] More specifically, the transmission wheel 410 is provided with a first limiting structure, and the clutch 450 is provided with a second limiting structure. When the clutch 450 approaches the transmission wheel 410, the second limiting structure can be limitedly matched with the first limiting structure, thereby realizing synchronous rotation of the transmission wheel 410 and the clutch 450. When the clutch 450 moves axially along the drive shaft 200 away from the transmission wheel 410, the second limiting structure gradually separates from the first limiting structure.
[0094] When the clutch 450 is located away from the transmission wheel 410, the clutch 450 does not rotate during the counterclockwise rotation of the drive shaft 200, and can move closer to the transmission wheel 410 along the drive shaft 200. When the clutch 450 moves to the end of the threaded section close to the transmission wheel 410, the second limiting structure and the first limiting structure achieve limiting cooperation, and at this time, the drive shaft 200 continues to rotate in the same direction to drive the clutch 450 to rotate synchronously, and then drives the transmission wheel 410 to rotate, so that the rotating wheel 417 rolls along the hose 600 to squeeze with the rotation of the transmission wheel 410.
[0095] When the driving shaft 200 rotates clockwise, the clutch 450 can be driven to move away from the transmission wheel 410. When the clutch 450 moves to the other end of the threaded section, it is necessary to ensure that the second limiting structure is completely separated from the first limiting structure.
[0096] As a specific implementation, in this embodiment, in the first dispensing unit 1, the clutch member 450 is located on the lower side of the transmission wheel 410, and can rise axially along the drive shaft 200 to approach the transmission wheel 410 as the drive shaft 200 rotates, or descend axially along the drive shaft 200 to move away from the transmission wheel 410.
[0097] In a further solution of this embodiment, in order to ensure that the rotation of the drive shaft 200 can be converted into the up and down movement of the clutch 450, it is necessary to limit the circumferential rotation of the clutch 450.
[0098] Specifically, the first clutch mechanism further includes an elastic clamping assembly (not shown in the figure). When the clutch 450 is located between the two ends of the threaded section on the drive shaft 200, the elastic force provided by the elastic clamping assembly is used to clamp the clutch 450 to remain stationary in the circumferential direction. When the clutch 450 moves to the end of the threaded section close to the transmission wheel 410, the longitudinal movement of the clutch 450 is restricted, so that the rotation of the drive shaft 200 transmits torque to the clutch 450. The torque enables the clutch 450 to overcome the clamping effect converted by the elastic force of the elastic clamping assembly and rotate synchronously with the drive shaft 200, thereby driving the transmission wheel 410 to rotate.
[0099] As a specific solution, the transmission wheel 410 is provided with a through hole penetrating along the axial direction of the drive shaft 200, and the elastic clamping assembly includes a first elastic member and a second elastic member arranged parallel to the axial direction of the drive shaft 200. The first elastic member is arranged on the side of the clutch member 450 facing the transmission wheel 410 (i.e. Figure 5 The second elastic member is disposed on the upper side of the clutch 450 and passes through the through hole, with one end fixed on the top wall of the first cavity 118 and the other end abutting against the clutch 450. The second elastic member is disposed on the side of the clutch 450 facing away from the transmission wheel 410 (i.e. Figure 5 One end is fixed to the bottom wall of the first cavity 118, and the other end is abutted against the clutch member 450.
[0100] More specifically, the first elastic member and the second elastic member described in this embodiment are both compression springs sleeved on the drive shaft 200. One end of the compression spring is fixed to the inner wall of the first cavity 118, and the other end abuts against the clutch 450 but is not fixed. The compression spring is in a compressed state, exerting elastic force on the upper and lower sides of the clutch 450, and then limiting the clutch 450 from circumferential rotation through the friction between the end of the compression spring and the surface of the clutch 450.
[0101] When the clutch 450 moves to one end of the threaded section close to the transmission wheel 410, the longitudinal movement of the clutch 450 is restricted and cannot get further close to the transmission wheel 410. At this time, due to the threaded matching structure between the drive shaft 200 and the clutch 450, the drive shaft 200 continues to rotate and transmits torque to the clutch 450, so that the clutch 450 can overcome the friction between it and the end of the compression spring, thereby rotating synchronously with the drive shaft 200.
[0102] Furthermore, in order to limit the clutch 450 in the longitudinal direction when it moves to the end of the threaded segment, in a specific solution of this embodiment, the drive shaft 200 also has a limiting segment, which is connected to one end of the threaded segment close to the transmission wheel 410.
[0103] More specifically, the side wall of the threaded section has an external thread structure, and the inner wall of the center hole of the clutch 450 has an internal thread structure matching the external thread. The outer diameter of the limit section is larger than the diameter surrounded by the top of the internal thread structure, so when the clutch 450 moves to the junction of the threaded section and the limit section, it cannot continue to move into the range of the limit section.
[0104] In the above solution, preferably, the outer diameter of the limit section is equal to the diameter surrounded by the top of the external thread structure on the thread section. With the above structure, a cylindrical shaft with a consistent outer diameter over the entire length is selected, and the thread structure is directly processed within a certain length range of its side wall, so that the drive shaft 200 in this embodiment can be obtained, and the manufacturing process is simpler.
[0105] In another specific solution of this embodiment, the above-mentioned limiting section may not be provided on the driving shaft 200, but the above-mentioned first elastic member is used to limit the longitudinal movement of the clutch member 450. That is, when the clutch member 450 moves to the height where the second limiting structure and the first limiting structure are limited, the first elastic member is compressed to the minimum length and cannot be further compressed, thereby playing a role in longitudinally limiting the clutch member 450.
[0106] Therefore, in the above solution, the length range occupied by the threaded section on the drive shaft 200 may be only the longitudinal movement range required by the clutch 450, or the entire length of the drive shaft 200 may have an external thread structure on the side wall.
[0107] Specifically, the first elastic member is a compression spring, and the compression spring has a minimum length that can be achieved after being compressed. By selecting a compression spring with appropriate parameters, the minimum length that can be achieved after being compressed can be just equal to the spacing distance between the upper surface of the clutch member 450 and the top wall of the first cavity 118 when the first limiting structure and the second limiting structure are limited.
[0108] With the above solution, when the clutch 450 moves along the drive shaft 200 and gradually approaches the transmission wheel 410, the compression spring as the first elastic member will be gradually compressed and shortened. When the first limiting structure and the second limiting structure achieve limiting cooperation, the compression spring is just compressed to the above-mentioned shortest length. At this time, since the compression spring cannot be further shortened, the drive shaft 200 continues to rotate and cannot drive the clutch 450 to get closer to the transmission wheel 410. Therefore, the clutch 450 can rotate synchronously with the drive shaft 200 under the drive of the threaded cooperation structure.
[0109] In a further solution of this embodiment, the first limiting structure is a clamping groove 461, and the second limiting structure is a clamping protrusion 452. When the clutch 450 moves along the drive shaft 200 toward the transmission wheel 410, the clamping protrusion 452 can be inserted into the clamping groove 461 to achieve transmission cooperation between the clutch 450 and the transmission wheel 410. When the clutch 450 moves along the drive shaft 200 away from the transmission wheel 410, the clamping protrusion 452 is disengaged from the clamping groove 461, and then the transmission wheel 410 no longer rotates with the drive shaft 200 and can remain stationary.
[0110] It is understandable that the positions of the protrusions and the slots can be swapped, that is, the first limiting structure provided on the transmission wheel is the protrusion, and the second limiting structure provided on the clutch is the slot, which can also achieve the transmission purpose between the clutch and the transmission wheel.
[0111] In a specific solution of this embodiment, a clamping arm 460 extending radially along the transmission wheel 410 is provided on a surface of the transmission wheel 410 facing away from the clutch 450, and one end of the clamping arm 460 close to the center of the transmission wheel 410 extends to the range of the through hole in the center of the transmission wheel 410, and a clamping groove 461 is provided at the extended end. The clutch 450 includes a main body with a circular outer profile, and the main body is mounted on the driving shaft 200, and the clamping protrusion 452 is formed by the outer peripheral side of the main body protruding radially outward.
[0112] When the drive shaft 200 rotates counterclockwise, the clutch 450 rises along the drive shaft 200 and enters the through hole in the center of the transmission wheel 410, so that the protrusion 452 located on the outer periphery of the main body of the clutch 450 is inserted into the groove 461 at the end of the arm 460 to achieve limited fit.
[0113] It is understandable that the clamp arm can also be arranged on the side of the transmission wheel facing the clutch member, so that the through hole on the transmission wheel does not need to have a larger diameter in order to avoid the clutch member, and it is only necessary to ensure that the inner wall of the through hole does not contact the side wall of the drive shaft. Correspondingly, the first elastic member can also be fixed directly on the transmission wheel instead of passing through the through hole on the transmission wheel.
[0114] More specifically, a mounting seat 463 is provided on the upper side of the transmission wheel 410, and one end of the clamping arm 460 close to the outer periphery of the transmission wheel 410 is rotatably mounted on the mounting seat 463 via a rotating shaft 462. The clamping arm 460 can rotate up and down around the rotating shaft 462, so that the clamping slot 461 has a certain movable range in the vertical direction. With the above structure, the up and down movement range of the clutch 450 does not need to be set very accurately, which reduces the difficulty of production.
[0115] Specifically, when the clutch 450 moves upward and approaches the transmission wheel 410, when the protrusion 452 has been inserted into the slot 461 on the arm 460, if the longitudinal movement of the clutch 450 is still not restricted and the arm 460 cannot move, continuing to push up the end of the arm 460 may cause structural damage. However, if the arm 460 is set to be able to rotate up and down, the clutch 450 further pushes the end of the pressed arm 460 to rotate upward by a small amplitude without directly damaging the arm 460. In this way, there is no need to accurately set the limit position of the upward movement of the clutch 450 to the height where the protrusion 452 just fits into the slot 461, and there is no need to worry about the position error causing structural damage.
[0116] In this embodiment, the number of the clamping arms 460 is the same as the number of the clamping protrusions 452 on the clutch member 450, so that they correspond one to one. The specific number of the two can be determined as needed. In a specific implementation, Figure 2 As shown, three clamping arms 460 are provided, and the interval between two adjacent clamping arms 460 is 120°.
[0117] Furthermore, the number of the clamping arms 460 is consistent with the number of the rotating wheels 417 installed on the transmission wheel 410 , and the clamping arms 460 and the rotating wheels 417 are arranged in a one-to-one correspondence in the same radial direction of the transmission wheel 410 .
[0118] In this embodiment, the second clutch mechanism can have the same structure as the first clutch mechanism, but the clutch state is opposite. Further, in the delivery device of this embodiment, the second delivery unit 2 has the same structure as the first delivery unit 1, but the same structure is in opposite positions in the two delivery units.
[0119] Specifically, in the first dispensing unit 1, the clamp arm 460 is disposed on the upper side of the transmission wheel 410, and the clutch 450 is disposed below the transmission wheel 410. In the second dispensing unit 2, the clamp arm 460 is disposed on the lower side of the transmission wheel 410, and the clutch 450 is disposed above the transmission wheel 410.
[0120] The lower end of the drive shaft 200 is connected to the output shaft 311, passes through the bottom wall of the first housing 110 to connect with the clutch 450, and has a threaded section of a certain length in the area below the transmission wheel 410. Above the clutch 450, the drive shaft 200 sequentially passes through the transmission wheel 410 and the bottom wall of the second housing 120 to enter the second cavity 128, and then passes through the transmission wheel 410. In the second cavity 128, the drive shaft 200 has a threaded section of a certain length in the area above the transmission wheel 410, so as to connect with the clutch 450. After passing through the clutch 450, the drive shaft 200 is inserted into the positioning groove on the cover 130.
[0121] When the drive shaft 200 rotates counterclockwise, the clutch 450 in the first dispensing unit 1 spirally rises along the drive shaft 200, enters the through hole of the transmission wheel 410, and causes the locking protrusion 452 to be locked in the locking groove 461 on the locking arm 460, so that the clutch 450 and the transmission wheel 410 rotate together with the drive shaft 200. At the same time, the clutch 450 in the second dispensing unit 2 also spirally rises along the drive shaft 200, away from the transmission wheel 410, so that the transmission wheel 410 remains stationary.
[0122] Correspondingly, when the drive shaft 200 rotates clockwise, the clutch 450 in the first dispensing unit 1 spirally descends along the drive shaft 200, so that the locking protrusion 452 is separated from the locking groove 461, and the transmission wheel 410 no longer rotates with the drive shaft 200 but remains stationary. At the same time, the clutch 450 in the second dispensing unit 2 spirally descends along the drive shaft 200 and enters the through hole of the transmission wheel 410, and the locking protrusion 452 thereon is locked into the locking groove 461 at the end of the locking arm 460, so that the clutch 450 and the transmission wheel 410 can rotate together with the drive shaft 200.
[0123] It is understandable that when the drive shaft 200 rotates, the clutch members 450 in the first and second dispensing units 1 and 2 rise or fall simultaneously. Therefore, the external thread structures of the drive shaft 200 on the two spiral sections in the first and second cavities 118 and 128 have the same rotation direction.
[0124] When the dispensing device described in this embodiment is working, when the power unit 3 controls the driving shaft 200 to rotate counterclockwise, the clutch member 450 of the first clutch mechanism can be driven to rise, so that the first clutch mechanism switches to the engaged state, and then the transmission wheel 410 in the dispensing chamber of the first dispensing unit 1 can be driven to rotate counterclockwise, so that the rotating wheel 417 rolls and squeezes along the hose 600, so that the clothing treatment agent is continuously sucked into the hose 600 and then discharged, so that the first dispensing unit 1 performs the dispensing operation. At the same time, the clutch member 450 of the second clutch mechanism rises with the rotation of the driving shaft 200, and separates from the clamping arm 460 on the transmission wheel 410, so that the second clutch mechanism switches to the separated state, and then the transmission wheel 410 in the dispensing chamber of the second dispensing unit 2 remains stationary, so that the second dispensing unit 2 will not perform dispensing.
[0125] When the power unit 3 controls the driving shaft 200 to rotate clockwise, the clutch member 450 of the first clutch mechanism is driven to descend and separate from the clamping arm 460, and then the first clutch mechanism is switched to the separation state, and the transmission wheel 410 in the delivery chamber of the first delivery unit 1 remains stationary, and the first delivery unit 1 will not deliver at this time. The clutch member 450 of the second clutch mechanism descends, so that the second clutch mechanism is switched to the engagement state, which can drive the transmission wheel 410 in the delivery chamber of the second delivery unit 2 to rotate counterclockwise, so that the rotating wheel 417 rolls and squeezes along the hose 600, so that the laundry treatment agent is continuously sucked into the hose 600 and then discharged, so that the second delivery unit 2 performs the delivery operation.
[0126] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.
Claims
1. A delivery device, comprising: A first delivery unit, comprising a first delivery mechanism and a first clutch mechanism; A second delivery unit includes a second delivery mechanism and a second clutch mechanism whose clutch state is opposite to that of the first clutch mechanism; A driving shaft, driving the first delivery mechanism through the first clutch mechanism, and driving the second delivery mechanism through the second clutch mechanism; Characterized in that, the first clutch mechanism comprises: Transmission wheel; A clutch member, movably mounted on the drive shaft; The first delivery unit has a first cavity, and the first delivery mechanism is arranged in the first cavity, including: A rotating wheel, mounted on the outer peripheral area of the transmission wheel and connected to the transmission wheel; A hose, surrounding the outer circumference of the transmission wheel and arranged between the rotating wheel and the inner wall of the first cavity; The driving shaft rotates in a first direction, driving the clutch to move along the axial direction of the driving shaft toward the transmission wheel, and cooperates with the transmission wheel in a limited position. The clutch rotates with the driving shaft to push the transmission wheel to rotate synchronously, and the rotating wheel rotates with the transmission wheel to squeeze the hose for delivery; The driving shaft rotates in a second direction opposite to the first direction, driving the clutch member to move axially along the driving shaft and separate from the transmission wheel, and the first delivery mechanism does not deliver.
2. The delivery device according to claim 1, characterized in that: The inner wall of the first cavity at least partially extends along an arc, and the transmission wheel has a circular outer contour that is cocentric with the inner wall of the first cavity; An outwardly protruding connection portion is arranged on the outer peripheral wall of the transmission wheel, and the rotating wheel is rotatably mounted on the connection portion, and the rotation axis of the rotating wheel is parallel to the rotation axis of the transmission wheel.
3. The delivery device according to claim 2, characterized in that: The outer diameter of the hose is smaller than the spacing distance between the outer peripheral wall of the transmission wheel and the peripheral inner wall of the first cavity, and is larger than the shortest distance between the connecting portion and the peripheral inner wall of the first cavity.
4. The delivery device according to claim 1, characterized in that: The first dispensing unit is provided with a liquid inlet and a liquid outlet communicating with both sides of the first cavity, the liquid suction end of the hose is inserted into the liquid inlet, and the liquid discharge end of the hose is inserted into the liquid outlet; A stop structure is provided inside the liquid inlet, and the liquid suction end of the hose stops at the stop structure inside the liquid inlet; and / or a stop structure is provided inside the liquid outlet, and the liquid discharge end of the hose stops at the stop structure inside the liquid outlet.
5. The delivery device according to claim 4, characterized in that: The liquid inlet includes a large diameter section close to the inner side of the first cavity, and a small diameter section close to the outer side of the first cavity; the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, and the stop structure includes a variable diameter stop surface formed at the connection between the large diameter section and the small diameter section; the outer diameter of the hose is larger than the inner diameter of the large diameter section, and the liquid suction end is inserted into the large diameter section of the liquid inlet and abuts against the variable diameter stop surface; And / or, the liquid outlet includes a large diameter section close to the inner side of the first cavity, and a small diameter section close to the outer side of the first cavity; the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, and the stop structure includes a variable diameter stop surface formed at the connection between the large diameter section and the small diameter section; the outer diameter of the hose is larger than the inner diameter of the large diameter section, and the discharge end is inserted into the large diameter section of the liquid outlet and abuts against the variable diameter stop surface.
6. The delivery device according to claim 1, characterized in that: The drive shaft has a threaded section, and the clutch member can be spirally mounted on the threaded section of the drive shaft and move closer to or farther from the transmission wheel as the drive shaft rotates; When the clutch moves to one end of the threaded section close to the transmission wheel, the clutch and the transmission wheel are limitedly matched, and the drive shaft continues to rotate in the same direction to drive the clutch to rotate synchronously; when the clutch moves to the other end of the threaded section, the clutch is completely separated from the transmission wheel.
7. The delivery device according to claim 6, characterized in that: The first clutch mechanism further comprises an elastic clamping assembly; when the clutch member is located between the two ends of the threaded segment, the elastic force provided by the elastic clamping assembly is used to clamp the clutch member to remain stationary in the circumferential direction.
8. The delivery device according to claim 7, characterized in that: The elastic clamping assembly comprises a first elastic member and a second elastic member which are arranged parallel to the axial direction of the driving shaft; The transmission wheel is provided with a through hole which penetrates axially along the driving shaft; the first elastic member is provided on the side of the clutch member facing the transmission wheel and penetrates the through hole, one end of which is fixed on the inner wall of the first cavity and the other end of which is abutted against the clutch member; the second elastic member is provided on the side of the clutch member facing away from the transmission wheel, one end of which is fixed on the inner wall of the first cavity and the other end of which is abutted against the clutch member.
9. The delivery device according to any one of claims 1 to 8, characterized in that: The second delivery mechanism has the same structure as the first delivery mechanism; and / or the second clutch mechanism has the same structure as the first clutch mechanism.
10. A clothes processing device, characterized in that: Comprising a delivery device as described in any one of claims 1-9.
Citation Information
Patent Citations
Automatic detergent dispensing device and washing device
CN104452196B