Quantitative adding device for washing liquid

Abstract

The utility model relates to the field of washing equipment, in particular to a quantitative washing liquid adding device, which is characterized in that a liquid storage cavity is arranged in the upper end of a shell, a putting chamber positioned below the liquid storage cavity is arranged in the shell, a putting rotating wheel is arranged in the putting chamber, and a liquid inlet communicated with the liquid storage cavity and the putting chamber is arranged in the shell; a liquid outlet communicated with the feeding chamber is further formed in the bottom of the shell; a quantitative cavity is formed in the feeding rotating wheel, and a washing liquid inlet and a washing liquid outlet are formed in the two ends of the quantitative cavity respectively; when the washing liquid inlet is communicated with the liquid inlet, the washing liquid outlet is blocked by the inner wall of the feeding chamber; when the washing liquid outlet is communicated with the liquid outlet, the washing liquid inlet is blocked by the inner wall of the feeding chamber; firstly, a feeding rotating wheel is rotated anticlockwise, so that a washing liquid inlet is rotated to be communicated with a liquid inlet, and quantitative washing liquid in a liquid storage cavity enters a quantitative cavity; and then the putting rotating wheel is rotated clockwise, so that the washing liquid outlet is rotated to be communicated with the liquid outlet, and the washing liquid in the liquid storage cavity is completely discharged.

Description

Technical Field

[0001] The utility model relates to the field of washing equipment, in particular to a quantitative adding device for washing liquid. Background Art

[0002] As people's requirements for the convenience of washing equipment increase, the requirements for adding detergent are becoming more and more sophisticated. At present, many models of washing machines on the market have realized the function of automatically adding detergent to avoid users' repeated work.

[0003] The utility model patent with application number CN202122870522.5 discloses a quantitative automatic dispensing device for washing liquid, including a dispensing transfer box, a flushing box, a dispensing wheel, and a step-by-step rotating drive assembly. The dispensing transfer box is connected to the dispensing port of the washing machine material box through a one-way valve and has a transfer dispensing port at its bottom. The flushing box is arranged at the bottom of the dispensing transfer box and is rotatably arranged with a dispensing wheel at the position corresponding to the transfer dispensing port. Several liquid storage chambers are evenly arranged in the dispensing wheel along its circumferential direction. The step-by-step rotating drive assembly is connected to the dispensing wheel to drive the dispensing wheel to rotate step by step, so that several liquid storage chambers are sequentially connected to the transfer dispensing port to fill the washing liquid and transfer it to the flushing box. The above-mentioned automatic dispensing device adopts a dispensing wheel with a fixed volume and cooperates with a step-by-step rotating drive assembly to achieve accurate dosage dispensing. After multiple cycles, the total amount of washing liquid required can be accurately dispensed, accompanied by a dispensing residence time, ensuring the accuracy of the amount of washing liquid dispensed.

[0004] However, when the above-mentioned automatic quantitative dispensing device for detergent is in use, detergent will remain in the liquid storage chamber located upstream of the flushing box and between the dispensing transfer box. A small amount of detergent remaining in the liquid storage chamber can easily cause the detergent to become sticky and dry. If it is not used for a long time, it may even cause the detergent in the liquid storage chamber to deteriorate. This needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a quantitative adding device for washing liquid, which can prevent the washing liquid from remaining in the feeding wheel, so as to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a quantitative addition device for washing liquid, comprising a shell, a liquid storage cavity is arranged in the upper end of the shell, a delivery chamber located below the liquid storage cavity is arranged in the shell, a delivery wheel driven by a power mechanism and rotating around its own axis is arranged in the delivery chamber, the axis of the delivery wheel extends horizontally, the inner wall of the delivery chamber is in contact with the delivery wheel, a liquid inlet connecting the liquid storage cavity and the delivery chamber is arranged in the shell, and a liquid outlet connecting the delivery chamber is also arranged at the bottom of the shell; a quantitative cavity is arranged in the delivery wheel, two ends of the quantitative cavity penetrate the outer peripheral wall of the delivery wheel, and the two ends of the quantitative cavity are a washing liquid inlet and a washing liquid outlet respectively; when the washing liquid inlet is connected to the liquid inlet, the inner wall of the delivery chamber blocks the washing liquid outlet; when the washing liquid outlet is connected to the liquid outlet, the inner wall of the delivery chamber blocks the washing liquid inlet.

[0007] As a further improvement, when the inner wall of the delivery chamber blocks the washing liquid outlet, the washing liquid inlet is connected to the liquid inlet or the inner wall of the delivery chamber blocks the washing liquid inlet.

[0008] As a further improvement, a vent connected to the inner cavity of the delivery chamber is provided on the side wall of the shell, and an air inlet one-way valve is provided in the vent, which conducts air from the outside to the delivery chamber. When the washing liquid outlet is connected to the liquid outlet, the vent is connected to the washing liquid inlet.

[0009] As a preferred technical solution, the power mechanism includes a driven gear fixedly mounted on one end of the delivery wheel, a slide plate which slides radially along the delivery wheel is provided on the outer side of the shell, a rack which meshes with the driven gear is fixedly mounted on the slide plate; a mounting seat is fixedly mounted on the outer side of the shell, a cylindrical cam which is driven by a motor and rotates around its own axis is provided on the mounting seat, the axis of the cylindrical cam is parallel to the sliding direction of the slide plate, a closed curved groove is provided on the outer peripheral wall of the cylindrical cam, and a sliding pin which matches the curved groove is fixedly mounted on the slide plate.

[0010] As a preferred technical solution, the curved groove is provided with a first arc groove and a second arc groove which are arranged around the circumference of the cylindrical cam, the first arc groove and the second arc groove are respectively arranged on two opposite sides of the cylindrical cam, and the corresponding ends of the first arc groove and the second arc groove are respectively connected with a spiral groove which is spirally arranged around the cylindrical cam; when the sliding pin slides into the first arc groove, the washing liquid outlet is connected with the liquid outlet; when the sliding pin slides into the second arc groove, the washing liquid inlet is connected with the liquid inlet.

[0011] After adopting the above technical solution, the beneficial effects of the utility model are:

[0012] (1) The present application first rotates the delivery wheel counterclockwise so that the washing liquid inlet rotates to communicate with the liquid inlet, so that a certain amount of washing liquid in the liquid storage chamber enters the quantitative chamber; then rotates the delivery wheel clockwise so that the washing liquid outlet rotates to communicate with the liquid outlet, so that the washing liquid in the liquid storage chamber is completely discharged, thereby achieving quantitative addition of washing liquid and avoiding washing liquid residue in the liquid storage chamber and the delivery wheel;

[0013] (2) In the present application, when the washing liquid in the liquid storage chamber is discharged, external air can enter the liquid storage chamber through the vent and the washing liquid inlet in sequence, so that the air pressure inside and outside the liquid storage chamber is balanced, thereby improving the discharge efficiency of the washing liquid in the liquid storage chamber;

[0014] (3) In the present application, when the sliding pin slides into the second arc-shaped groove, the washing liquid inlet and the liquid inlet remain connected for a certain period of time, thereby ensuring that the washing liquid in the liquid storage chamber can fully fill the quantitative chamber; when the sliding pin slides into the first arc-shaped groove again, the washing liquid outlet and the liquid outlet remain connected for a certain period of time, thereby ensuring that the washing liquid in the liquid storage chamber can be fully discharged, thereby improving the accuracy of washing liquid addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A cross-sectional schematic diagram of

[0018] Figure 3 This is a schematic diagram of the structure of the delivery wheel of the embodiment of the utility model;

[0019] Figure 4 yes Figure 1 A top view schematic diagram of

[0020] Figure 5 It is a structural schematic diagram of a cylindrical cam in an embodiment of the utility model;

[0021] Figure 6 It is a structural schematic diagram of a sliding frame according to an embodiment of the utility model.

[0022] In the figure: 1-shell; 2-liquid storage chamber; 3-liquid inlet pipe; 4-dispensing chamber; 5-dispensing wheel; 6-mounting shaft; 7-liquid inlet; 8-liquid outlet; 9-quantitative chamber; 10-washing liquid inlet; 11-washing liquid outlet; 12-vent; 13-driven gear; 14-sliding frame; 15-slide plate; 16-slide groove; 17-rack; 18-mounting seat; 19-motor; 20-cylindrical cam; 21-curved groove; 22-sliding pin; 23-first arc groove; 24-second arc groove; 25-spiral groove. DETAILED DESCRIPTION

[0023] like Figures 1 to 6 As shown, a quantitative addition device for washing liquid comprises a housing 1, which is mounted at the outlet of a washing machine material box, a liquid storage chamber 2 is arranged in the upper end of the housing 1, and a liquid inlet pipe 3 is arranged on one side of the top of the housing 1, and the liquid inlet pipe 3 is connected to the outlet of the washing machine material box. The user pours washing liquid into the washing machine material box, so that the washing liquid enters the liquid storage chamber 2 through the liquid inlet pipe 3.

[0024] like Figure 2 As shown, a delivery chamber 4 located below the liquid storage chamber 2 is provided in the shell 1, and the delivery chamber 4 is cylindrical with an axis extending forward and backward. A delivery wheel 5 driven by a power mechanism and rotating around its own axis is provided in the delivery chamber 4, and the axis of the delivery wheel 5 extends horizontally forward and backward. The front and rear ends of the delivery wheel 5 are respectively integrally formed with coaxially arranged mounting shafts 6, and the two mounting shafts 6 are respectively rotatably connected to the front and rear side walls of the delivery chamber 4, and the inner wall of the delivery chamber 4 is fitted with the delivery wheel 5. A liquid inlet 7 connecting the bottom of the liquid storage chamber 2 and the top of the delivery chamber 4 is provided in the shell 1, and a liquid outlet 8 connecting the delivery chamber 4 is also provided on one side of the bottom of the shell 1, and the liquid outlet 8 is located at the liquid inlet 7 counterclockwise direction; a quantitative chamber 9 is provided in the delivery wheel 5, and both ends of the quantitative chamber 9 pass through the outer peripheral wall of the delivery wheel 5, and the two ends of the quantitative chamber 9 are respectively a washing liquid inlet 10 and a washing liquid outlet 11, which extend along the radius of the delivery wheel 5 respectively, and the washing liquid inlet 10 and the washing liquid outlet 11 are distributed at an obtuse angle, and the washing liquid outlet 11 is located in the clockwise direction of the washing liquid inlet 10; when the washing liquid inlet 10 is connected with the liquid inlet 7, the inner wall of the delivery chamber 4 blocks the washing liquid outlet 11; when the washing liquid outlet 11 is connected with the liquid outlet 8, the inner wall of the delivery chamber 4 blocks the washing liquid inlet 10.

[0025] When in use, first rotate the delivery wheel 5 counterclockwise to rotate the washing liquid inlet 10 to communicate with the liquid inlet 7. At the same time, the inner wall of the delivery chamber 4 blocks the washing liquid outlet 11, so that the quantitative washing liquid in the liquid storage chamber 2 enters the quantitative chamber 9 through the liquid inlet 7 and the washing liquid inlet 10 in sequence; then rotate the delivery wheel 5 clockwise to rotate the washing liquid outlet 11 to communicate with the liquid outlet 8. Figure 2As shown, the washing liquid in the liquid storage chamber 2 is completely discharged through the washing liquid outlet 11 and the liquid outlet 8 in sequence, thereby achieving quantitative addition of washing liquid and avoiding washing liquid residue in the liquid storage chamber 2 and the delivery wheel 5.

[0026] In order to improve the accuracy of adding washing liquid, when the inner wall of the delivery chamber 4 blocks the washing liquid outlet 11, the washing liquid inlet 10 is connected with the liquid inlet 7 or the inner wall of the delivery chamber 4 blocks the washing liquid inlet 10. Specifically, after the washing liquid in the liquid storage chamber 2 enters the quantitative chamber 9 through the liquid inlet 7 and the washing liquid inlet 10 in turn, the delivery wheel 5 is rotated clockwise to first block the washing liquid inlet 10 by the inner wall of the delivery chamber 4, so that the washing liquid inlet 10 and the washing liquid outlet 11 are both in a blocked state; the delivery wheel 5 is continued to be rotated clockwise to rotate the washing liquid outlet 11 to a state of being connected with the liquid outlet 8, and the washing liquid in the liquid storage chamber 2 is discharged, thereby preventing the washing liquid inlet 10 from being connected with the liquid inlet 7 and the washing liquid outlet 11 from being connected with the liquid outlet 8 at the same time during the rotation of the delivery wheel 5.

[0027] The side wall of the housing 1 is provided with an air vent 12 connected to one side of the top of the delivery chamber 4. An air inlet non-return valve is provided in the air vent 12, which is connected from the outside to the delivery chamber 4. When the washing liquid outlet 11 is connected to the liquid outlet 8, the air vent 12 is connected to the washing liquid inlet 10. When the washing liquid outlet 11 is connected to the liquid outlet 8, when the washing liquid in the liquid storage chamber 2 is discharged through the washing liquid outlet 11, the external air can enter the liquid storage chamber 2 through the air vent 12 and the washing liquid inlet 10 in sequence, so that the air pressure inside and outside the liquid storage chamber 2 is balanced, thereby improving the discharge efficiency of the washing liquid in the liquid storage chamber 2.

[0028] like Figure 1 As shown, the mounting shaft 6 at the end of the delivery wheel 5 extends to the outside of the housing 1, and the power mechanism includes a driven gear 13 fixedly mounted on the mounting shaft 6 at the front end of the delivery wheel 5. The driven gear 13 is located outside the housing 1, and a sliding frame 14 is fixedly mounted on the outside of the front end of the housing 1 by bolts, as shown in FIG. Figure 6 As shown, a slide plate 15 is installed on the sliding frame 14 for transverse sliding along the radial direction of the delivery wheel 5. The sliding frame 14 is provided with two sections of slide grooves 16 which are arranged opposite to each other up and down. The slide plate 15 is slidably installed between the two sections of the slide grooves 16. A rectangular groove is provided on the slide plate 15. The driven gear 13 is located inside the rectangular groove. A rack 17 meshing with the driven gear 13 is fixed in the rectangular groove by bolts. When the slide plate 15 slides left and right along the slide groove 16, the driven gear 13 and the delivery wheel 5 can be driven to rotate through the rack 17.

[0029] like Figure 1 and Figure 4As shown, a mounting seat 18 is fixedly installed on the outer side of the housing 1 by bolts, and a cylindrical cam 20 is provided on the mounting seat 18, which is driven by a motor 19 and rotates around its own axis. The axis of the cylindrical cam 20 extends left and right parallel to the sliding direction of the slide plate 15. The two ends of the cylindrical cam 20 are respectively rotatably mounted on the mounting seat 18 through bearings. The motor 19 is mounted on the mounting seat 18 by bolts, and the rotating shaft of the motor 19 is connected to one end of the cylindrical cam 20 through a gear pair. A closed curved groove 21 is provided on the outer peripheral wall of the cylindrical cam 20, and a sliding pin 22 matching the curved groove 21 is embedded at one end of the slide plate 15. When the cylindrical cam 20 rotates, the curved groove 21 acts on the sliding pin 22, thereby driving the slide plate 15 to slide left and right.

[0030] like Figure 5 As shown, the curved groove 21 is provided with a first arc groove 23 and a second arc groove 24 which are arranged around the circumference of the cylindrical cam 20, and the first arc groove 23 and the second arc groove 24 are respectively arranged on opposite sides of the cylindrical cam 20, and the corresponding ends of the first arc groove 23 and the second arc groove 24 are respectively connected with a spiral groove 25 which is spirally arranged around the cylindrical cam 20, and the two sections of the spiral groove 25 do not intersect; when the sliding pin 22 slides into the first arc groove 23, the washing liquid outlet 11 is connected with the liquid outlet 8; when the sliding pin 22 slides into the second arc groove 24, the washing liquid inlet 10 is connected with the liquid inlet 7.

[0031] In the initial state, the sliding pin 22 is located in the first arc groove 23. The two sections of the spiral groove 25 are the first spiral groove and the second spiral groove respectively. When the cylindrical cam 20 rotates, the sliding pin 22 is driven to slide in the first arc groove 23, the first spiral groove, the second arc groove 24 and the second spiral groove in turn. When the sliding pin 22 slides into the second arc groove 24, the washing liquid inlet 10 and the liquid inlet 7 are kept in a connected state for a certain period of time, thereby ensuring that the washing liquid in the liquid storage chamber 2 can fully fill the quantitative chamber 9; when the sliding pin 22 slides into the first arc groove 23 again, the washing liquid outlet 11 and the liquid outlet 8 are kept in a connected state for a certain period of time, thereby ensuring that the washing liquid in the liquid storage chamber 2 can be fully discharged, thereby improving the accuracy of the washing liquid addition. In addition, by adjusting the number of revolutions of the cylindrical cam 20 driven by the motor 19, the amount of washing liquid added can be adjusted.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A quantitative adding device for washing liquid, characterized in that: It comprises a shell, wherein a liquid storage cavity is arranged in the upper end of the shell, a delivery chamber located below the liquid storage cavity is arranged in the shell, a delivery wheel driven by a power mechanism and rotating around its own axis is arranged in the delivery chamber, the axis of the delivery wheel extends horizontally, the inner wall of the delivery chamber is fitted with the delivery wheel, a liquid inlet connecting the liquid storage cavity and the delivery chamber is arranged in the shell, and a liquid outlet connecting the delivery chamber is also arranged at the bottom of the shell; a quantitative cavity is arranged in the delivery wheel, and two ends of the quantitative cavity penetrate the outer peripheral wall of the delivery wheel, and two ends of the quantitative cavity are washing liquid inlet and washing liquid outlet respectively; when the washing liquid inlet is connected with the liquid inlet, the inner wall of the delivery chamber blocks the washing liquid outlet; when the washing liquid outlet is connected with the liquid outlet, the inner wall of the delivery chamber blocks the washing liquid inlet.

2. A device for quantitatively adding washing liquid according to claim 1, characterized in that: When the inner wall of the delivery chamber blocks the washing liquid outlet, the washing liquid inlet is connected to the liquid inlet or the inner wall of the delivery chamber blocks the washing liquid inlet.

3. A quantitative addition device for washing liquid according to claim 1, characterized in that: A vent connected to the inner cavity of the delivery chamber is provided on the side wall of the shell, and an air inlet one-way valve is provided in the vent for conducting air from the outside to the delivery chamber. When the washing liquid outlet is connected to the liquid outlet, the vent is connected to the washing liquid inlet.

4. A device for quantitatively adding washing liquid according to claim 1, characterized in that: The power mechanism includes a driven gear fixedly mounted at one end of the delivery wheel, a slide plate which slides radially along the delivery wheel is provided on the outer side of the shell, a rack which meshes with the driven gear is fixedly mounted on the slide plate; a mounting seat is fixedly mounted on the outer side of the shell, a cylindrical cam which is driven by a motor and rotates around its own axis is provided on the mounting seat, the axis of the cylindrical cam is parallel to the sliding direction of the slide plate, a closed curved groove is provided on the outer peripheral wall of the cylindrical cam, and a sliding pin which matches the curved groove is fixedly mounted on the slide plate.

5. A quantitative adding device for washing liquid according to claim 4, characterized in that: The curved groove is provided with a first arc groove and a second arc groove which are arranged around the circumference of the cylindrical cam, the first arc groove and the second arc groove are respectively arranged on two opposite sides of the cylindrical cam, and the corresponding ends of the first arc groove and the second arc groove are respectively connected with a spiral groove which is spirally arranged around the cylindrical cam; when the sliding pin slides into the first arc groove, the washing liquid outlet is connected with the liquid outlet; when the sliding pin slides into the second arc groove, the washing liquid inlet is connected with the liquid inlet.

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