Dropping system and dish-washing machine using same

Abstract

The utility model relates to the technical field of household appliances, in particular to a feeding system and a dish-washing machine using the feeding system, which comprises an outer shell, a liquid storage cavity, a feeding device and a feeding device. A liquid adding opening communicated with the liquid storage cavity is formed in the side wall of the outer shell, and a feeding opening used for feeding liquid to the outer side of the outer shell is further formed in the side wall of the outer shell; the liquid pump is arranged in the outer shell and is suitable for sucking liquid from the liquid storage cavity and then pumping the liquid to the feeding opening; a liquid inlet channel of the liquid pump is communicated with the liquid storage cavity; the floater is arranged in the outer shell and suitable for changing along with sinking and floating of liquid in the liquid storage cavity. When the feeding system is in the feeding working state and the liquid adding state, the liquid inlet channel is located at the bearing end of liquid in the liquid storage cavity. According to the utility model, the comprehensive performance of the delivery system in the use process can be optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a delivery system and a dishwasher using the delivery system. Background Art

[0002] A dishwasher is a device used to automatically wash dishes such as bowls, chopsticks, plates, dishes, knives, forks, etc., which reduces the labor intensity of users, improves work efficiency, and enhances cleanliness and hygiene. Dishwashers are generally equipped with a dispensing system specifically for dishwashing powder and liquid detergents (such as rinse aid).

[0003] The dishwashers commonly used in the prior art have the following problems after actual research:

[0004] First, the problem of low dispensing accuracy, that is, the accuracy of the amount of dishwashing liquid cannot be ensured. When the amount of dishwashing liquid is too much, it will remain on the surface of the tableware. When the amount is too little, the dishwashing effect on the tableware cannot be fully achieved.

[0005] Second, there is the problem of poor accuracy in the prompt when the remaining amount of dishwashing liquid is insufficient. In the existing delivery system, the remaining amount of rinse agent (which has very good fluidity and is not easy to crystallize) is usually detected by a float. However, since dishwashing liquid is relatively viscous and easy to dry and crystallize, ordinary floats are easily adhered to the inner wall of the delivery system by the dishwashing liquid, resulting in the float being unable to float and work normally. In addition, since the delivery system is usually parallel to the ground in its length direction and the cavity has a long bottom, a poor design will result in too much residual liquid in the delivery system when the float falls (the residual liquid is still enough for multiple uses), resulting in premature prompts for lack of liquid or inaccurate detection (when the float falls and triggers the sensor, if there is too much residual liquid, the delivery system can be controlled by the program to continue to be used for several times before prompting for lack of liquid. In this way, the amount of residual liquid will be affected by the delivery accuracy and is not very accurate).

[0006] Third, the problem of poor smoothness in the filling process. The dispensing system is equipped with a filling port for replenishing dishwashing liquid. The filling port needs to consider two issues: preventing foreign matter from entering and ensuring smooth filling. The former requires a filter to be installed at the filling port, and the latter usually requires consideration of exhaust problems. Since dishwashing liquid is very viscous, it is easy to cover all the filter mesh holes when adding liquid, resulting in the gas in the dispenser cavity cannot be discharged smoothly, which in turn leads to the problem of poor filling.

[0007] Therefore, in view of the above-mentioned situation existing in the delivery system generally used in the prior art, it is necessary to improve its overall structure so as to optimize its performance. Utility Model Content

[0008] The first purpose of the utility model is to provide a delivery system to solve the technical problem of optimizing its performance.

[0009] The second object of the utility model is to provide a dishwasher to solve the technical problem of optimizing the performance of the feeding system thereof.

[0010] The delivery system of the utility model is realized as follows:

[0011] A delivery system, comprising:

[0012] The outer shell has a liquid storage cavity; a liquid filling port connected to the liquid storage cavity is provided on the side wall of the outer shell, and a delivery port for delivering liquid to the outside of the outer shell is also provided on the side wall of the outer shell;

[0013] A liquid pump is disposed in the outer shell and is suitable for sucking liquid from the liquid storage chamber and then pumping it to the delivery port; the liquid inlet channel of the liquid pump is connected to the liquid storage chamber;

[0014] A floater is disposed in the outer shell and is adapted to rise or fall with the liquid in the liquid storage chamber;

[0015] When the delivery system is in a delivery working state and a liquid adding state, the liquid inlet channel is located at the load-bearing end of the liquid in the liquid storage cavity.

[0016] In an optional implementation of the present invention, a liquid inlet communicating with the liquid storage cavity is formed on the side wall of the liquid inlet channel.

[0017] In an optional implementation of the present invention, a liquid buffer groove is formed around the liquid inlet channel; and

[0018] When the delivery system is in a liquid adding state, the liquid level in the liquid buffer tank is higher than the liquid level in the liquid inlet channel.

[0019] In an optional implementation of the present invention, the float adopts a capsule-shaped structure.

[0020] In an optional implementation of the utility model, a detection cavity suitable for the float to perform sinking and floating motion is formed in the liquid storage cavity;

[0021] When the delivery system is in a delivery working state, the detection cavity is communicated with the load-bearing end of the liquid in the liquid storage cavity.

[0022] In an optional implementation of the utility model, the float comprises a cylindrical body and a pair of hemispherical bodies disposed at both axial ends of the cylindrical body;

[0023] The diameter of each of the hemispheres is the same as the diameter of the cylindrical body; and

[0024] The axial length of the float is greater than the diameter of the cylindrical body; and the axial direction of the float is parallel to the load-bearing end of the liquid in the corresponding liquid storage cavity when the delivery system is in the delivery working state.

[0025] In an optional implementation of the present invention, a trigger member is provided in the middle region of the shaft of the cylindrical body; and

[0026] The outer shell is also provided with a sensing element for sensing the trigger element, and the sensing element is arranged on the circuit board.

[0027] In an optional implementation of the utility model, the liquid adding port includes a liquid adding area, an annular exhaust area located on the circumferential side of the liquid adding area, and a separation ring for separating the liquid adding area and the annular exhaust area; wherein

[0028] The liquid adding area and the annular exhaust area are both communicated with the liquid storage cavity.

[0029] In an optional implementation of the utility model, the outer side wall of the outer shell is also equipped with a sealing cover suitable for sealing the liquid filling port;

[0030] The sealing cover is pivotally matched with the outer shell.

[0031] In an optional implementation of the utility model, a pressure balancing valve is also provided on the side wall of the outer shell.

[0032] The dishwasher of the utility model is realized in this way:

[0033] A dishwasher comprises: the above-mentioned delivery system.

[0034] By adopting the above technical scheme, the utility model has the following beneficial effects: the dispensing system of the utility model and the dishwasher using the dispensing system, when the dispensing system is in the dispensing working state and the liquid adding state, the liquid inlet channel is at the load-bearing end of the liquid in the liquid storage chamber, which can ensure that the liquid in the liquid storage chamber is fully extracted when the dispensing system is in the dispensing working state, and can also prevent the problem of reduced dispensing accuracy caused by air intake in the liquid inlet channel when the dispensing system is in the liquid adding state. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Shown is a schematic diagram of the exploded structure of the delivery system of the utility model;

[0036] Figure 2 Shown is a schematic diagram of the structure of the delivery system of the utility model;

[0037] Figure 3 The figure shows a schematic diagram of the structure of the liquid filling port and the delivery port of the delivery system of the utility model;

[0038] Figure 4 The figure shows a schematic diagram of the structure of the liquid filling port of the delivery system of the utility model;

[0039] Figure 5 The figure shows a cross-sectional structural diagram of the liquid filling port of the delivery system of the utility model;

[0040] Figure 6 The figure shows a cross-sectional structural diagram of the liquid storage chamber of the delivery system of the utility model;

[0041] Figure 7 The figure shows a schematic diagram of the structure of the liquid buffer tank of the delivery system of the utility model;

[0042] Figure 8 The figure shows the internal structure schematic diagram of the liquid storage chamber of the delivery system of the utility model;

[0043] Fig. 9 Shown is a schematic structural diagram of a float of a delivery system of the utility model;

[0044] Fig.10 The figure shows a schematic diagram of the structure of the feeding system of the utility model applied in a dishwasher.

[0045] In the figure: front shell 11, rear shell 12, sealing ring 13, liquid storage chamber 31, loading port 32, liquid adding port 33, liquid adding area 331, annular exhaust area 332, separating ring 333, detection chamber 35, liquid inlet channel 4, liquid inlet 41, liquid buffer tank 5, baffle 51, enclosure 52, liquid pump 6, liquid outlet 61, float 7, cylindrical body 71, hemisphere 72, magnet 73, circuit board 75, sealing cover 8, pressure balancing valve 9, dishwasher 10, door body 101, washing chamber 102. DETAILED DESCRIPTION

[0046] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0047] Embodiment 1:

[0048] See also Figures 1 to 10 As shown, this embodiment provides a delivery system, including: an outer shell and a liquid pump 6 and a float 7 arranged in the outer shell.

[0049] Specifically, the outer shell has a liquid storage cavity 31; a liquid filling port 33 connected to the liquid storage cavity 31 is provided on the side wall of the outer shell, and a delivery port 32 for delivering liquid to the outside of the outer shell is also provided on the side wall of the outer shell; the outer shell used in this embodiment specifically includes a front shell 11 and a rear shell 12 suitable for being joined together, and the liquid storage cavity 31 is defined by the front shell 11 and the rear shell 12 cooperating with a sealing ring 13. The liquid pump 6 is arranged in the outer shell and is suitable for sucking liquid from the liquid storage cavity 31 and pumping it to the delivery port 32, that is, the liquid outlet 61 of the liquid pump 6 is connected to the delivery port 32; the liquid inlet channel 4 of the liquid pump 6 is connected to the liquid storage cavity 31; the float 7 is arranged in the outer shell and is suitable for rising and falling with the liquid in the liquid storage cavity 31.

[0050] On the basis of the above structure, it should be noted that when the delivery system is in the delivery working state and the liquid adding state, the liquid inlet channel 4 is at the load-bearing end of the liquid in the liquid storage chamber 31 (the "load-bearing end" in the present utility model mainly refers to the end that bears the liquid in the direction of liquid gravity, and the load-bearing end for the liquid also changes with the change of the position state of the delivery system). Based on this design, when the delivery system is in the delivery working state, the liquid pump 6 can more fully extract the liquid in the liquid storage chamber 31. Based on this structure, when the delivery system of this embodiment is used in the dishwasher 10, liquid is added to the liquid storage chamber 31 from the liquid adding port 33. When working, the delivery system executes specific working instructions, energizes the liquid pump 6 for a certain period of time, and pumps the liquid in the liquid storage chamber 31 into the washing chamber 102 of the dishwasher 10.

[0051] Furthermore, it should be noted that a liquid inlet 41 communicating with the liquid storage chamber 31 is formed on the side wall of the liquid inlet channel 4. As an example of an optional situation, the liquid inlet 41 is formed by cutting and processing on the side wall of the liquid inlet channel 4, and it can be a rectangular surface, of course, it can also be a circular surface or other shapes, and this embodiment does not make an absolute limitation on this.

[0052] Based on the above situation, the present embodiment also has the following design: a liquid cache groove 5 is formed around the liquid inlet channel 4; and when the delivery system is in the liquid-adding state, the liquid level D2 of the liquid cache groove 5 is higher than the liquid level D1 in the liquid inlet channel 4. It should be noted that the liquid cache groove 5 of the present embodiment is mainly formed by the enclosure 52 provided on the sides of the liquid inlet channel 4. Of course, from the perspective of simplifying the structure, a region for assembling the liquid pump 6 is separated in the outer shell, and the region is provided with baffles 51 on all sides. Therefore, for the side enclosure 52 forming the liquid cache groove 5, one side can use the baffle 51 for assembling the fixed liquid pump 6, and the other side can use the side wall of the outer shell. In this way, for the liquid cache groove 5, it is only necessary to set enclosures 52 at the two side ends of the liquid inlet channel 4, and the enclosures 52 at the two side ends are arranged in a relative orientation. In this way, by adjusting the height of the two enclosures 52, the liquid level height in the liquid cache groove 5 when the delivery system is in the liquid-adding state can be limited.

[0053] The advantage of such a design is that when the dispensing system of this embodiment is used in, for example, a dishwasher 10, when the door of the dishwasher 10 is closed and then opened, it is ensured that no air enters the liquid inlet channel 4, thereby improving the accuracy of dishwashing liquid dispensing.

[0054] from Fig.10It can be seen that, taking the case where a general dispensing system adopts a rectangular structure as an example, taking the application of the dispensing system in a dishwasher as an example, when the dispensing system is in a dispensing working state, the area of ​​the side wall surface of the outer shell corresponding to the load-bearing end of the liquid in the liquid storage chamber 31 (the side wall surface formed in the length direction and the height direction of the rectangular structure) is set to A, and when the dispensing system is in a liquid adding state, the area of ​​the side wall surface of the outer shell corresponding to the load-bearing end of the liquid in the liquid storage chamber 31 (the side wall surface formed in the length direction and the width direction of the rectangular structure) is set to B, then A is much smaller than B, which means that the liquid level in the liquid storage chamber 31 when the dispensing system is in the dispensing working state is much higher than the liquid level in the liquid storage chamber 31 when the dispensing system is in a liquid adding state. When the residual liquid in the liquid storage chamber 31 is insufficient, when the delivery system opens the dishwasher 10 door 101 in the liquid-adding state, the liquid level height will be lower than the height of the liquid inlet surface of the liquid inlet port 41 (generally, to ensure that the liquid inlet channel 4 is not easily blocked, the diameter of the liquid inlet channel 4 should not be too small), causing the liquid in the liquid inlet channel 4 to flow out, and then causing the problem of air intake in the liquid inlet channel 4, thereby reducing the delivery accuracy of the liquid. In view of the above situation, after a liquid buffer groove 5 is formed around the liquid inlet channel 4, when the delivery system opens the dishwasher 10 door 101 in the liquid-adding state, most of the liquid in the liquid buffer groove 5 can be covered by its enclosure 52 instead of being spread on the large bottom surface, that is, the liquid inlet port 41 is immersed in the liquid in the liquid buffer groove 5, thereby ensuring that the liquid inlet channel 4 does not take in air.

[0055] Next, it is explained that, regarding the float 7, a detection cavity 35 suitable for the float 7 to do sinking and floating movements is formed in the liquid storage cavity 31; when the delivery system is in the delivery working state, the detection cavity 35 is connected to the load-bearing end of the liquid in the liquid storage cavity 31.

[0056] It is also necessary to explain that, in conjunction with the attached drawings, an optional situation is given as an example, and the float 7 can optionally adopt a capsule-shaped structure. In more detail, the float 7 includes a cylindrical main body 71 and a pair of hemispherical bodies 72 arranged at both axial ends of the cylindrical main body 71; the diameter of each hemispherical body 72 is the same as the diameter of the cylindrical main body 71, and the pair of hemispherical bodies 72 are tangentially connected to the cylindrical main body 71 to form a whole. The float 7 adopting this structure avoids only point contact or line contact with the inner wall of the liquid storage chamber 31, but no surface contact, which can effectively prevent the problem of adhesion between the float 7 and the inner wall of the liquid storage chamber 31 due to the large contact surface (adhesion caused by large area close to the liquid tension), making the float 7 easier to float.

[0057] On the basis of the above structure, in a specific optional implementation, the axial length F of the float 7 is greater than the diameter of the cylindrical body 71; and the axial length F of the float 7 is parallel to the load-bearing end of the liquid in the corresponding liquid storage chamber 31 when the delivery system is in the delivery working state. Under this design, the contact surface between the float 7 and the liquid is increased, and it can still be floated when the remaining liquid in the liquid storage chamber 31 is small, that is, the corresponding liquid remaining in the liquid storage chamber 31 is small enough when the liquid shortage prompt is realized (sufficiently small here generally refers to the amount of liquid that no longer meets the delivery side in combination with the actual situation), thereby improving the accuracy of the residual liquid detection. Otherwise, when the float 7 falls, if the remaining liquid in the liquid storage chamber 31 is enough for multiple delivery uses, either the user is asked to add liquid in advance, resulting in unnecessary operations; or the user is prompted to add liquid after a few more delivery through program control, and the delivery error may cause the remaining liquid to be insufficient for one delivery before the prompt.

[0058] In addition, it is necessary to explain that a trigger is provided in the middle of the axis of the cylindrical body 71; and a sensing member for sensing the trigger is also provided on the outer shell, and the sensing member is provided on the circuit board 75. The trigger member here can be a magnet 73, and the sensing member can be a reed switch. When the liquid remaining in the liquid storage chamber 31 is sufficient, the liquid in the detection chamber 35 is also sufficient, and the float 7 floats up in the detection chamber 35 by buoyancy, so that the magnet 73 on the float 7 is close to the reed switch, triggering the reed switch to change the circuit state on the circuit board 75. When the liquid remaining in the liquid storage chamber 31 is insufficient, the liquid in the detection chamber 35 is also insufficient, and the float 7 cannot float in the detection chamber 35, so that the magnet 73 on the float 7 is far away from the reed switch, and the reed switch returns to the initial state. In this way, for the amount of liquid remaining in the liquid storage chamber 31, the reed switch signal plays a role in prompting the insufficient liquid remaining in the liquid storage chamber 31.

[0059] Finally, the liquid adding port 33 includes a liquid adding area 331, an annular exhaust area 332 located on the circumferential side of the liquid adding area 331, and a separation ring 333 for separating the liquid adding area 331 and the annular exhaust area 332; wherein the liquid adding area 331 and the annular exhaust area 332 are both connected to the liquid storage chamber 31. Based on the design of the liquid adding port 33, when it is necessary to add liquid to the liquid storage chamber 31 through the liquid adding area 331, the exhaust area can ensure smooth flow, thereby avoiding the problem of poor liquid addition due to the liquid storage chamber 31 being in a closed state. In addition, since the exhaust area is annular in structure, even if the liquid is biased toward one side of the liquid adding port 33 during the process of adding liquid, causing the liquid to cover one side of the annular exhaust area 332, the other side of the annular exhaust area 332 can still remain unobstructed.

[0060] On the basis of the above situation, a sealing cover 8 suitable for sealing the liquid filling port 33 is also connected to the outer wall of the outer shell; the sealing cover 8 is pivotally matched with the outer shell to facilitate switching the sealing state of the sealing cover 8 for the liquid filling port 33.

[0061] In summary, for the delivery system of this embodiment:

[0062] When the delivery system is in the delivery working state and the liquid adding state, the liquid inlet channel 4 is at the load-bearing end of the liquid in the liquid storage chamber 31, which can ensure that the delivery system fully extracts the liquid in the liquid storage chamber 31 when it is in the delivery working state, and prevent the delivery system from being in the liquid adding state. The problem of reduced delivery accuracy caused by air intake in the liquid inlet channel 4. The design of the liquid buffer groove 5 can prevent the liquid in the liquid inlet channel 4 from flowing out and causing the problem of air intake in the liquid inlet channel 4, thereby improving the delivery accuracy. The use of a capsule-shaped float 7 can reduce the contact area between the float 7 and the inner wall of the liquid storage chamber 31 and improve its rolling ability in the detection chamber 35, thereby improving the ability of the float 7 to resist the adhesion of the liquid in the liquid storage chamber 31. Furthermore, by designing a separation ring 333 at the liquid adding port 33 to distinguish the liquid adding area 331 and the annular exhaust area, the exhaust efficiency is improved, thereby improving the smoothness of liquid adding.

[0063] Embodiment 2:

[0064] See also Figures 1 to 10 As shown, based on the delivery system of Example 1, the delivery system provided in this embodiment is also designed as follows:

[0065] A pressure balance valve 9 is also provided on the side wall of the outer shell. The pressure balance valve 9 is fixedly connected to the outer wall of the outer shell. For example, when the dispensing system of this embodiment is applied to a dishwasher 10, when the air pressure in the liquid storage chamber 31 is lower than the air pressure in the washing chamber 102 of the dishwasher 10 (when the liquid pump 6 pumps the liquid in the liquid storage chamber 31 to the outside of the liquid storage chamber 31, the liquid storage chamber 31 will generate negative pressure), the pressure balance valve 9 opens, and the gas in the washing chamber 102 enters the liquid storage chamber 31 until the air pressure in the liquid storage chamber 31 is equal to the air pressure in the washing chamber 102. When the air pressure in the liquid storage chamber 31 and the air pressure in the washing chamber 102 are balanced or close to balanced, the pressure balancing valve 9 is automatically closed to isolate the liquid storage chamber 31 and the washing chamber 102; when the air pressure in the liquid storage chamber 31 is higher than the air pressure in the washing chamber 102 (the heating of the dosing system causes the gas in the liquid storage chamber 31 to expand), the pressure balancing valve 9 is opened, and the gas in the liquid storage chamber 31 enters the washing chamber 102 until the air pressure in the liquid storage chamber 31 and the air pressure in the washing chamber 102 are balanced or close to balanced.

[0066] The pressure balancing valve 9 here can be optionally arranged in the area that can be covered by the sealing cover 8, so that when the dispensing system is applied in a specific dishwasher 10, for example, no splashing residue will contaminate the pressure balancing valve 9 during the operation of the dishwasher 10.

[0067] Embodiment 3:

[0068] See also Figures 1 to 10 As shown, based on the delivery system of embodiment 1 or embodiment 2, this embodiment provides a dishwasher 10, which adopts the delivery system of embodiment 1 or embodiment 2.

[0069] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0070] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A delivery system, characterized in that: include: The outer shell has a liquid storage cavity; a liquid filling port connected to the liquid storage cavity is provided on the side wall of the outer shell, and a delivery port for delivering liquid to the outside of the outer shell is also provided on the side wall of the outer shell; A liquid pump is disposed in the outer shell and is suitable for sucking liquid from the liquid storage chamber and then pumping it to the delivery port; the liquid inlet channel of the liquid pump is connected to the liquid storage chamber; A floater is disposed in the outer shell and is adapted to rise or fall with the liquid in the liquid storage chamber; When the delivery system is in a delivery working state and a liquid adding state, the liquid inlet channel is located at the load-bearing end of the liquid in the liquid storage cavity.

2. The delivery system according to claim 1, characterized in that: A liquid inlet communicating with the liquid storage cavity is formed on the side wall of the liquid inlet channel.

3. The delivery system according to claim 2, characterized in that: A liquid buffer groove is formed around the liquid inlet channel; and When the delivery system is in a liquid adding state, the liquid level in the liquid buffer tank is higher than the liquid level in the liquid inlet channel.

4. The delivery system according to any one of claims 1 to 3, characterized in that: The float adopts a capsule-shaped structure.

5. The delivery system according to claim 4, characterized in that: The liquid storage cavity is formed with a detection cavity suitable for the float to do the sinking and floating motion; When the delivery system is in a delivery working state, the detection cavity is communicated with the load-bearing end of the liquid in the liquid storage cavity.

6. The delivery system according to claim 4, characterized in that: The float comprises a cylindrical body and a pair of hemispherical bodies arranged at two axial ends of the cylindrical body; The diameter of each of the hemispheres is the same as the diameter of the cylindrical body; and The axial length of the float is greater than the diameter of the cylindrical body; and the axial direction of the float is parallel to the load-bearing end of the liquid in the corresponding liquid storage cavity when the delivery system is in the delivery working state.

7. The delivery system according to claim 6, characterized in that: A trigger member is provided in the middle of the shaft of the cylindrical body; and The outer shell is also provided with a sensing element for sensing the trigger element, and the sensing element is arranged on the circuit board.

8. The delivery system according to any one of claims 1 to 3, characterized in that: The liquid adding port includes a liquid adding area, an annular exhaust area located on the circumferential side of the liquid adding area, and a separation ring for separating the liquid adding area and the annular exhaust area; wherein The liquid adding area and the annular exhaust area are both communicated with the liquid storage cavity.

9. The delivery system according to claim 8, characterized in that: The outer side wall of the outer shell is also equipped with a sealing cover suitable for sealing the liquid filling port; The sealing cover is pivotally matched with the outer shell.

10. The delivery system according to claim 1, characterized in that: A pressure balancing valve is also provided on the side wall of the outer shell.

11. A dishwasher, characterized in that: include: The delivery system according to any one of claims 1 to 10.

Images