Washing machine putting pump

Abstract

The utility model provides a washing machine putting pump which comprises an upper shell and a lower shell fixedly connected with the bottom of the upper shell, the upper shell is communicated with the lower shell, two side walls of the lower shell are fixedly connected with a liquid inlet pipe and a liquid outlet pipe respectively, and the liquid inlet pipe and the liquid outlet pipe are communicated with the lower shell respectively. A driving motor is fixedly connected to the interior of the upper shell, a worm gear is fixedly connected to the output end of the driving motor, a gear is meshed with the worm gear, and an output gear is meshed with the other side of the gear; the worm gear, the gear and the output gear are meshed in sequence, when the driving motor rotates, the worm gear, the gear and the output gear are sequentially driven to rotate, the output gear rotates, the crankshaft is driven to do reciprocating stroke motion, and the piston is driven to do reciprocating stroke motion in the pressure pipe; the input of the washing liquid is controlled through the operation of the driving motor, and the input amount of the washing agent is adjusted, so that the input amount of the washing liquid is accurately controlled.

Description

Technical Field

[0001] The utility model relates to a washing machine, belonging to the technical field, and particularly relates to a washing machine delivery pump. Background Art

[0002] A laundry processing device, such as a detergent dispensing module in a washing machine, which dispenses detergent by manual pressure or electrically. A valve is usually provided on the dispensing channel of such washing machines to open and close the dispensing pipeline; in the "Pump and automatic dispensing system using the pump" with the patent number "CN201610038560.5" published on December 26, 2017, the pump comprises: a power source capable of forward and reverse power output; a pump body, the pump body having two pump chambers, and each pump chamber correspondingly provided with a pump chamber drive assembly; two clutch mechanisms, the clutch mechanisms corresponding to the pump chambers one by one, and the clutch mechanisms connected to the pump chamber drive assemblies of the corresponding pump chambers, and all the clutch mechanisms are exactly the same; when the power source outputs forward power or when the power source outputs reverse power, one of the clutch mechanisms is in a power engagement state and the other clutch mechanism is in a power engagement state. In the power separation state, the power source transmits power to the corresponding pump chamber drive assembly through the clutch mechanism in the power engagement state to make the corresponding pump chamber work; wherein, the clutch mechanism includes: a clutch active member, wherein the clutch active member of one clutch mechanism is directly driven to rotate by the power source, and the clutch active members of all clutch mechanisms are meshed together in sequence, and when the power source drives the clutch active member directly driven to rotate by the power source to rotate, the clutch active member of another clutch mechanism rotates in the opposite direction to the clutch active member directly driven to rotate by the power source; a clutch driven member, wherein the clutch driven member is transmission-connected with the corresponding pump chamber drive assembly so that when the clutch driven member rotates, the clutch driven member drives the corresponding pump chamber drive assembly to move; a clutch assembly, wherein the clutch assembly is used to engage and separate the power transmission between the clutch active member and the clutch driven member. In the above technical solution, one power source can integrate at least two pump bodies, with high integration; the power source and the clutch mechanism can be directly connected, omitting the central transition structure, and the structure is simple; for occasions where at least two delivery pumps are required, the present invention can save space and cost.

[0003] However, the above-mentioned dispensing device still has defects, such as poor accuracy in dispensing detergent, and failure to accurately dispense an appropriate amount of detergent, resulting in excessive or insufficient detergent being dispensed, affecting the effect of washing clothes. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a washing machine dosing pump which can accurately dosing the amount of detergent.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: comprising an upper shell, a lower shell fixedly connected to the bottom of the upper shell, the upper shell is communicated with the lower shell, two side walls of the lower shell are respectively fixedly connected with a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the lower shell, a driving motor is fixedly connected inside the upper shell, a worm gear is fixedly connected to the output end of the driving motor, a gear is meshed on the worm gear, and an output gear is meshed on the other side of the gear;

[0006] A pressure pipe is fixedly connected inside the lower shell, a crankshaft is drivingly connected to the bottom end of the output gear, and a piston is fixedly connected to one end of the crankshaft located inside the pressure pipe.

[0007] The lower shell is provided with a liquid inlet cavity and a liquid outlet cavity, the liquid inlet pipe, the liquid inlet cavity, the liquid outlet cavity and the liquid outlet pipe are sequentially connected, and a partition seat is provided between the liquid inlet cavity and the liquid outlet cavity;

[0008] The liquid inlet cavity is provided with a first non-return device for sealing the liquid inlet pipe, and the liquid outlet cavity is provided with a second non-return device for sealing the partition seat;

[0009] A pressure transmission cavity is provided on the end of the pressure tube.

[0010] It is further configured that: the worm gear, the gear and the output gear are meshed in sequence.

[0011] It is further configured that: the gear and the output gear are rotationally connected to the upper shell and the lower shell respectively.

[0012] It is further configured as follows: the first non-return device includes a first one-way valve slidably connected to the liquid inlet pipe, a first spring is clamped on one end of the first one-way valve facing the liquid outlet cavity, and one end of the first spring is fixed to the side wall of the partition seat.

[0013] It is further configured as follows: the second non-return device comprises a second one-way valve slidably connected to the partition seat, the second one-way valve is used to seal the partition seat, and a second spring is clamped on one end of the second one-way valve facing the liquid outlet pipe.

[0014] It is further configured as follows: the pressure tube is connected to the liquid inlet cavity through the pressure transmission cavity.

[0015] It is further configured that: the movement direction of the sliding connection is the same as the axial direction of the liquid inlet pipe.

[0016] The beneficial effects of the utility model are as follows: the utility model has a simple structure, a small size, and a low manufacturing cost, which is conducive to improving market acceptance; the worm gear, the gear and the output gear are meshed in sequence, and when the driving motor rotates, the worm gear, the gear and the output gear are driven to rotate in sequence, and the output gear rotates, driving the crankshaft to perform a reciprocating stroke motion, and driving the piston to perform a reciprocating stroke motion in the pressure tube; the reciprocating stroke motion drives the first one-way valve and the second one-way valve to open and close alternately to complete the delivery of washing liquid; the delivery of washing liquid is controlled by the operation of the driving motor, and the amount of detergent input is adjusted, so as to achieve accurate control of the amount of washing liquid input, avoid excessive washing liquid input or more or less influence on the washing effect, and the efficiency of controlling the delivery of washing liquid by the operation of the driving motor is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The cross-sectional structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 3 The cross-sectional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 The cross-sectional structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 5 This is a schematic cross-sectional view of the structure of the non-return device in the utility model;

[0022] In the figure: 1-upper shell, 2-lower shell, 3-liquid inlet pipe, 4-liquid outlet pipe, 5-drive motor, 6-worm gear, 7-gear, 8-output gear, 9-pressure pipe, 10-crankshaft, 11-piston, 12-liquid inlet chamber, 13-liquid outlet chamber, 141-first one-way valve, 142-first spring, 151-second one-way valve, 152-second spring, 16-partition seat, 17-pressure transmission chamber. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Embodiment 1: Figure 1-5As shown: This embodiment includes an upper shell 1, a lower shell 2 is fixedly connected to the bottom end of the upper shell 1, and the upper shell 1 and the lower shell 2 are connected internally, a liquid inlet pipe 3 is fixedly connected to one end of the lower shell, and a liquid outlet pipe 4 is fixedly connected to one side of the lower shell 2, an internal liquid inlet cavity 12 and a liquid outlet cavity 13 of the lower shell 2, and a separator 16 is arranged between the liquid inlet cavity 12 and the liquid outlet cavity 13, the surrounding side walls of the separator 16 are fixed to the internal side walls of the lower shell 2, and the separator 16 is provided with a through hole, the liquid inlet pipe 3, the liquid inlet cavity 12, and the separator 16 The upper through hole, the liquid outlet cavity 13 and the liquid outlet pipe 4 are connected in sequence; the interior of the lower shell 2 is fixedly connected with a pressure tube 9, and the pressure tube 9 is located above the liquid inlet cavity 12; the interior of the upper shell 1 is fixedly connected with a drive motor 5, and the output end of the drive motor 5 is fixedly connected with a worm gear 6, the worm gear 6 is meshed with a gear 7, and the other side of the gear 7 is meshed with an output gear 8, the bottom end of the output gear 8 is transmission-connected with a crankshaft 10, the end of the crankshaft 10 is fixedly connected with a piston 11, and the end part of the crankshaft 10 and the piston 11 are located inside the pressure tube 9.

[0025] A pressure transmission chamber 17 is provided between the end of the pressure tube 9 and the lower shell 2, and the pressure tube 9 is connected to the liquid inlet chamber 12 through the pressure transmission chamber 17; a first check device for sealing the liquid inlet tube 3 is installed in the liquid inlet chamber 12, and a second check device for sealing the through hole on the partition seat 16 is installed in the liquid outlet chamber 13;

[0026] The first check device includes a first one-way valve 141 slidably connected to one end of the liquid inlet pipe 3 toward the interior of the lower shell 2 , a first spring 142 is clamped on one end of the first one-way valve 141 toward the liquid outlet chamber 13 , and one end of the first spring 142 is fixed to the side wall of the partition seat 16 .

[0027] The second non-return device includes a second one-way valve 151 slidably connected to the partition seat 16 , a second spring 152 is clamped on one end of the second one-way valve 151 facing the liquid outlet pipe 4 , and one end of the second spring 152 is fixed to the inner wall of one end of the second shell 2 facing the liquid outlet pipe 4 .

[0028] Moreover, the first check device includes a first one-way valve 141 slidably connected to one end of the liquid inlet pipe 3 toward the interior of the lower shell 2, and the second check device includes a second one-way valve 151 slidably connected to the partition seat 16. The movement direction of the sliding connection described here is the same as the axial direction of the liquid inlet pipe 3, thereby ensuring that the first one-way valve 141 and the second one-way valve 151 are fully opened or closed.

[0029] like Figure 4As shown, the worm gear 6, the gear 7 and the output gear 8 are meshed in sequence. When the drive motor 5 rotates, the worm gear 6, the gear 7 and the output gear 8 are driven to rotate in sequence. The output gear 8 rotates, driving the crankshaft 10 to perform a reciprocating stroke motion, and driving the piston 11 to perform a reciprocating stroke motion in the pressure tube 9. When the piston 11 moves toward the right end of the pressure tube 9, the positive pressure generated is transmitted to the liquid inlet chamber 12 through the pressure tube 9 and the pressure transmission chamber 17. Therefore, under the action of the positive pressure, the first one-way valve 141 moves toward the direction of the liquid inlet pipe 3 and seals the liquid inlet pipe 3, and the second one-way valve 152 moves toward the direction of the liquid outlet pipe 4 and opens the through hole on the partition seat 16, so that the washing liquid in the liquid inlet chamber 12 flows to the liquid outlet pipe 4 through the liquid outlet chamber 13 and is then discharged to the outside.

[0030] When the crankshaft 10 reciprocates and drives the piston 11 to move in the direction of the output gear 8, negative pressure is generated. Therefore, under the action of the negative pressure, the second one-way valve 152 moves toward the direction of the liquid inlet pipe 3 and seals the through hole on the partition seat 16. At this time, the second one-way valve 151 is in a closed state; at the same time, the first one-way valve 141 moves toward the direction of the liquid outlet pipe 4 and opens the liquid inlet pipe 3. At this time, the first one-way valve 141 is in an open state, and the washing liquid enters the liquid inlet chamber 12 through the liquid inlet pipe 3.

[0031] When the second one-way valve 151 is opened again, the first one-way valve 141 is closed. At this time, the washing liquid in the liquid inlet chamber 12 enters the liquid outlet chamber 13 again, and enters the washing machine through the liquid outlet pipe 4. The washing liquid is added by reciprocating opening and closing. The washing liquid is added by driving the motor 5 to control the operation, thereby adjusting the amount of detergent added to avoid excessive or insufficient washing liquid that affects the washing effect.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A washing machine dispensing pump, comprising an upper housing (1), a lower housing (2) fixedly connected to the bottom of the upper housing (1), the upper housing (1) being in communication with the lower housing (2), a liquid inlet pipe (3) and a liquid outlet pipe (4) being fixedly connected to two side walls of the lower housing (2), and the liquid inlet pipe (3) and the liquid outlet pipe (4) being in communication with the lower housing (2), characterized in that: A driving motor (5) is fixedly connected to the interior of the upper housing (1); a worm gear (6) is fixedly connected to the output end of the driving motor (5); a gear (7) is meshed on the worm gear (6); and an output gear (8) is meshed on the other side of the gear (7); A pressure pipe (9) is fixedly connected inside the lower housing (2), a crankshaft (10) is drivingly connected to the bottom end of the output gear (8), and a piston (11) is fixedly connected to one end of the crankshaft (10) located inside the pressure pipe (9). The lower shell (2) is provided with a liquid inlet chamber (12) and a liquid outlet chamber (13); the liquid inlet pipe (3), the liquid inlet chamber (12), the liquid outlet chamber (13) and the liquid outlet pipe (4) are sequentially connected; and a partition seat (16) is provided between the liquid inlet chamber (12) and the liquid outlet chamber (13); A first non-return device for sealing the liquid inlet pipe (3) is arranged in the liquid inlet chamber (12), and a second non-return device for sealing the partition seat (16) is arranged in the liquid outlet chamber (13); A pressure transmission chamber (17) is provided at the end of the pressure tube (9).

2. A washing machine delivery pump according to claim 1, characterized in that: The worm gear (6), the gear (7) and the output gear (8) are meshed in sequence.

3. A washing machine delivery pump according to claim 1, characterized in that: The gear (7) and the output gear (8) are rotationally connected to the upper shell (1) and the lower shell (2) respectively.

4. A washing machine delivery pump according to claim 1, characterized in that: The first non-return device comprises a first one-way valve (141) slidably connected to the liquid inlet pipe (3); a first spring (142) is clamped on one end of the first one-way valve (141) facing the liquid outlet chamber (13), and one end of the first spring (142) is fixed to the side wall of the partition seat (16).

5. A washing machine delivery pump according to claim 1, characterized in that: The second non-return device comprises a second one-way valve (151) slidably connected to the partition seat (16), the second one-way valve (151) being used to seal the partition seat (16), and a second spring (152) is clamped on one end of the second one-way valve (151) facing the liquid outlet pipe (4).

6. A washing machine delivery pump according to claim 1, characterized in that: The pressure tube (9) is connected to the liquid inlet chamber (12) via the pressure transmission chamber (17).

7. A washing machine delivery pump according to claim 4 or 5, characterized in that: The movement direction of the sliding connection is the same as the axial direction of the liquid inlet pipe (3).

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