Dropping device

Abstract

The invention discloses a feeding device, which comprises a liquid storage unit, a feeding unit, a discharging unit and a control unit, the mounting groove is used for bearing the liquid storage unit, a push rod assembly is arranged at the bottom of the mounting groove, and a liquid suction channel in the push rod assembly communicates with the interior of the liquid storage unit through a bottle opening of the liquid storage unit; the electrode unit is arranged in the liquid storage unit and generates corresponding potential according to the liquid level of the additive when being electrified; the probe is arranged at the groove bottom of the mounting groove, the fixed end of the probe is electrically connected with a liquid level detection circuit of the feeding device, the extending end of the electrode unit extends to the outside of the liquid storage unit through the bottle opening, and the extending end of the probe is attached to the electrode unit. The feeding device has the beneficial effects that by means of the attaching and conducting mode, when the liquid storage unit is replaced, abrasion to the liquid level detection assembly composed of the electrode unit and the probe is greatly reduced, the durability degree of the liquid level detection assembly is improved, and the overall service life of the feeding device is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of cleaning equipment, and in particular relates to a dispensing device. Background Art

[0002] With the continuous improvement of people's living standards, washing machines are rapidly popularized in various households, bringing convenience to users in washing clothes. At present, the functions of most washing machines are becoming increasingly rich, and detergent can be automatically dispensed to improve user experience. However, when the automatic detergent dispenser in the washing machine industry uses a cartridge-type liquid storage unit, relative electrode plates are set in the liquid storage unit, and the liquid level is judged according to the change in the detection potential. The scheme is usually to install the motor plate on both sides of the liquid suction tube of the dispensing device. During the placement of the liquid storage unit, the electrode plate is correspondingly inserted into the preset detection port of the liquid storage unit, so as to detect the liquid level in the liquid storage unit. However, after multiple uses, the electrode plate may be bent and deformed as a whole or even broken and damaged after multiple plugging and unplugging, resulting in inaccurate liquid level detection values ​​or even the inability to detect the liquid level, affecting the normal use of users.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dispensing device, which solves the problem of decreased detection accuracy of the electrode plate after long-term use by arranging an electrode unit that can pass through the inside of a liquid storage unit, and electrically connecting the electrode unit to a liquid level detection circuit by fitting the probe to the electrode unit. In addition, by detachably arranging the probe on the mounting groove, the probe can be replaced or removed for thorough cleaning to prevent the probe from being deformed or contaminated by additives dripping from the liquid storage unit, resulting in inaccurate detection.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a dispensing device, including a liquid storage unit, which stores additives; a mounting groove, which is used to support the liquid storage unit, and a push rod assembly is arranged at the bottom of the groove, and the liquid suction channel inside the push rod assembly is connected with the inside of the liquid storage unit through the bottle mouth of the liquid storage unit; an electrode unit is arranged in the liquid storage unit, and when power is turned on, a corresponding electric potential is generated according to the liquid level of the additive; it also includes a probe, which is arranged at the bottom of the mounting groove, and the fixed end is electrically connected to the liquid level detection circuit of the dispensing device, and the extension end of the electrode unit extends to the outside of the liquid storage unit through the bottle mouth, and the extension end of the probe is arranged in a fit with the electrode unit.

[0006] Furthermore, the liquid storage unit is provided with a liquid outlet cover with a protruding surface on the outer periphery of the bottle mouth, and a positioning channel and an installation channel communicating with the bottle mouth are opened on the liquid outlet cover, the positioning channel is sleeved on the push rod assembly, and the electrode unit is correspondingly installed in the installation channel;

[0007] Preferably, at least two installation channels are arranged on the liquid outlet end cover, and are respectively arranged around the outer circumference of the positioning channel.

[0008] Furthermore, the extending end of the electrode unit is provided with a bending portion bent in a direction away from the positioning channel, and the flange is arranged to fit the probe.

[0009] Furthermore, the outlet of the positioning channel is arranged on the end face of the liquid outlet end cover away from the liquid storage unit; the flange includes a first bending portion that bends and extends in a direction away from the positioning channel, and a second bending portion that bends from the first bending portion toward a direction close to the liquid storage unit, the second bending portion is arranged to fit with the end face of the outer peripheral surface of the liquid outlet end cover, and the probe fits with the second bending portion.

[0010] Furthermore, a second pressure profile that is recessed inward is provided at a position where the outer circumference of the liquid outlet end cover fits with the second bent portion, one side of the second bent portion fits with the bottom of the second pressure profile, and the opposite side is flush with the outer circumference of the liquid outlet end cover;

[0011] Preferably, the bottom of the second profile is provided with a first fixing hole recessed inwardly, the extending end of the second bent portion is provided with a third bent portion bent and extended toward the direction close to the liquid outlet cover, and the third bent portion is correspondingly inserted into the first fixing hole.

[0012] Furthermore, the extending end of each probe is respectively provided with a fourth bending portion that bends and extends toward the electrode unit, and the extending end of the fourth bending portion is arranged in close contact with the motor unit.

[0013] Furthermore, a fifth bending portion is provided on the extending end of each fourth bending portion, bending and extending in a direction close to the probe;

[0014] Preferably, the extending end of the fifth bending portion is arranged at a certain distance from the probe.

[0015] Furthermore, a plug hole is provided at the bottom of the installation slot, and a plug-in portion is provided on the probe, and the plug-in portion is detachably plugged into the plug hole;

[0016] Preferably, the plug-in portion is a sheet-shaped structure, and the plug-in hole is correspondingly arranged as a long strip structure.

[0017] Furthermore, the plug hole passes through the bottom wall of the installation groove, the extended end of the plug-in portion protrudes from the bottom wall, and a deformable clamping structure protruding from the wall surface is provided on the peripheral side wall of the extended end of the plug-in portion, and the clamping structure abuts against the bottom wall;

[0018] Preferably, the engaging structure is a rib extending obliquely from the extending end of the plug-in portion to the mounting groove in a direction away from the plug-in portion, and the extending end of the engaging structure is arranged at a certain distance from the plug-in portion;

[0019] In another preferred embodiment, a side of the bottom wall away from the liquid storage unit is provided with an abutment portion; a clamping structure is provided on one side of the plug-in portion, and the opposite side abuts against the abutment portion.

[0020] Furthermore, positioning protrusions protruding from the surface are respectively provided on two pairs of side surfaces of the probe, and each positioning protrusion is respectively in contact with the bottom of the installation groove;

[0021] Preferably, a receiving groove recessed inwardly is provided at the position where the bottom of the installation groove abuts against each positioning protrusion; each positioning protrusion is respectively inserted into the corresponding receiving groove one by one, and each positioning protrusion is respectively flush with the bottom of the installation groove.

[0022] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: by arranging an electrode unit that can be passed through the inside of the liquid storage unit, and by fitting the probe with the electrode unit to realize the electrical connection between the electrode unit and the liquid level detection circuit, when the liquid storage unit is replaced, the wear of the liquid level detection component composed of the electrode unit and the probe is greatly reduced, the durability of the liquid level detection component is improved, and the overall service life of the delivery device is improved;

[0023] In addition, by detachably arranging the probe on the mounting groove, the probe can be replaced or removed for thorough cleaning to prevent the probe from being deformed or contaminated by additives dripping from the liquid storage unit, which may lead to inaccurate detection.

[0024] At the same time, the invention has a simple structure, significant effects and is suitable for popularization and use.

[0025] 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

[0026] 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:

[0027] Figure 1 is a schematic diagram of the structure of a delivery device according to an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of a liquid storage unit according to an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the electrode unit structure of an embodiment of the present invention;

[0030] Figure 4is a cross-sectional schematic diagram of a delivery device according to an embodiment of the present invention;

[0031] Figure 5 The embodiment of the present invention Figure 2 A local enlarged view of area A;

[0032] Figure 6 The embodiment of the present invention Figure 3 A local enlarged view of area B;

[0033] Figure 7 is a schematic diagram of the structure of a probe according to an embodiment of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the push rod assembly in the present invention.

[0035] In the figure: 1, liquid storage unit; 11, liquid extraction channel; 12, check valve; 13, liquid outlet cover; 131, second pressure profile; 132, first fixing hole; 2, push rod assembly; 21, liquid suction channel; 22, first push rod; 221, first liquid suction channel; 222, liquid suction port; 23, second push rod; 231, second liquid suction channel; 232, liquid outlet; 24, liquid leakage prevention mechanism; 3, mounting groove; 31, jack; 32, bottom wall; 33, third pressure profile ;;34, abutment portion;341, fifth fixing hole;4, liquid collecting channel;41, push rod;5, partition plate;6, electrode unit;61, flange;611, first bending portion;612, second bending portion;613, third bending portion;614, second fixing hole;62, detection portion;7, probe;71, fourth bending portion;72, fifth bending portion;73, plug-in portion;731, snap-fit ​​structure;732, fourth fixing hole;74, positioning protrusion.

[0036] 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

[0037] 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.

[0038] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] 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.

[0040] like Figure 1-8 As shown, in an embodiment of the present invention, a dispensing device is introduced, including a liquid storage unit 1, in which an additive is stored; a mounting groove 3, used to support the liquid storage unit 1, a push rod assembly 2 is arranged at the bottom of the groove, and a liquid suction channel 21 inside the push rod assembly 2 is connected with the inside of the liquid storage unit 1 through the bottle mouth of the liquid storage unit 1; an electrode unit 6 is arranged in the liquid storage unit 1, and when power is turned on, a corresponding electric potential is generated according to the liquid level of the additive; and a probe 7 is also included, which is arranged at the bottom of the mounting groove 3, and the fixed end is electrically connected to the liquid level detection circuit of the dispensing device, and the extension end of the electrode unit 6 extends to the outside of the liquid storage unit 1 through the bottle mouth, and the extension end of the probe 7 is arranged in close contact with the electrode unit 6.

[0041] Through the above-mentioned arrangement, by arranging an electrode unit 6 that can pass through the inside of the liquid storage unit 1, and by fitting the probe 7 with the electrode unit 6 to realize electrical connection between the electrode unit 6 and the liquid level detection circuit, when the liquid storage unit 1 is replaced, the wear of the liquid level detection component composed of the electrode unit 6 and the probe 7 is greatly reduced, the durability of the liquid level detection component is improved, and the overall service life of the dosing device is improved.

[0042] It should be noted that the additive is a liquid such as detergent, softener or rinse agent that can be used to treat clothes.

[0043] like Figure 2-7In the embodiment of the present invention shown in the figure, the liquid storage unit 1 is provided with a liquid outlet end cover 13 with a protruding surface on the outer periphery of the bottle mouth, and a positioning channel and an installation channel connected to the bottle mouth are opened on the liquid outlet end cover 13, the positioning channel is sleeved on the push rod assembly 2, and the electrode unit 6 is correspondingly installed in the installation channel; by providing a special installation channel for the electrode unit 6 to pass through, the electrode unit 6 can be stably assembled and the installation channel can be sealed to prevent the additive from leaking through the installation channel.

[0044] In an embodiment of the present invention, the electrode plate includes a detection part 62, and the detection part 62 is located inside the liquid storage unit 1; the electrode plate includes at least two, and the respective detection parts 62 are arranged opposite to each other; when the liquid level detection circuit is working, by energizing the detection part 62, the potential between the two detection parts 62 will change according to the liquid level change of the additive, so that the liquid level detection circuit can accurately judge the liquid level in the liquid storage unit 1 according to the potential change.

[0045] In an embodiment of the present invention, at least two installation channels are provided on the liquid outlet cover 13, which are respectively arranged around the outer periphery of the positioning channel; by respectively arranging the electrode units 6 in different installation channels, it is avoided that the motor units contact each other and cause a circuit short circuit; more importantly, the additives usually gather at the position of the positioning channel mouth of the liquid storage unit 1, and by being arranged around the outer periphery of the positioning channel, the electrode plates are arranged at a certain distance apart. At the same time, the electrode unit 6 can detect the additive liquid level near the positioning channel, and the measurement result is more accurate.

[0046] In an embodiment of the present invention, the extended end of the electrode unit 6 is provided with a flange 61 bent in a direction away from the positioning channel, and the flange 61 is arranged in close contact with the probe 7; by providing the flange 61, the surface area of ​​the electrode unit 6 exposed outside the liquid storage unit 1 is increased, making it easier for the probe 7 to be electrically connected to the corresponding electrode unit 6, thereby preventing the occurrence of an unstable connection between the probe 7 and the electrode unit 6 when the setting position of the liquid storage unit 1 deviates slightly.

[0047] In an embodiment of the present invention, the outlet of the positioning channel is arranged on the end face of the liquid outlet cover 13 away from the liquid storage unit 1; the flange 61 includes a first bending portion 611 bent and extended in a direction away from the positioning channel, and a second bending portion 612 bent from the first bending portion 611 toward a direction close to the liquid storage unit 1, the second bending portion 612 is arranged to fit the end face of the outer peripheral surface of the liquid outlet cover 13, and the probe 7 fits the second bending portion 612; preferably, the extending end of the probe 7 is located in the radial direction of the liquid outlet cover 13.

[0048] Through the above arrangement, the flange 61 is arranged on the outer peripheral surface of the liquid outlet end cover 13 through two bends, and the extended end of the probe 7 can be arranged in the radial direction of the liquid outlet end cover 13, which facilitates the fitting of the probe 7 and the flange 61. At the same time, when the liquid outlet end cover 13 is too close to the bottom of the installation groove 3 during the installation process, the end surface of the liquid outlet end cover 13 away from the liquid outlet end can be prevented from squeezing the probe 7, resulting in excessive deformation of the probe 7.

[0049] In the embodiment of the present invention, the first bent portion 611 is disposed in close contact with the end surface of the liquid outlet cover 13 away from the liquid storage unit 1 .

[0050] In an embodiment of the present invention, a first pressure profile recessed inward is provided at the position where the liquid outlet end cover 13 and the first bent portion 611 are fitted together, one side of the first bent portion 611 is fitted together with the bottom of the first pressure profile, and the other side surface opposite is flush with the end face of the liquid outlet end cover 13.

[0051] In an embodiment of the present invention, a second fixing hole 614 is provided on the first bending portion 611, a third fixing hole is correspondingly provided on the first pressed bottom, a second fixing member is provided in the delivery device, and the second fixing member is inserted into the third fixing hole through the second fixing hole 614, so that the electrode element is fixed on the liquid outlet cover 13.

[0052] In an embodiment of the present invention, a second pressure profile 131 recessed inwardly is provided at the position where the outer circumferential surface of the liquid outlet end cover 13 fits with the second bending portion 612, one side of the second bending portion 612 fits with the bottom of the second pressure profile 131, and the opposite side is flush with the outer circumferential surface of the liquid outlet end cover 13.

[0053] In an embodiment of the present invention, a first fixing hole 132 recessed inwardly is provided at the bottom of the second pressure profile 131, and a third bending portion 613 bent and extended toward the direction close to the liquid outlet cover 13 is provided at the extending end of the second bending portion 612, and the third bending portion 613 is correspondingly inserted into the first fixing hole 132.

[0054] In an embodiment of the present invention, the extending end of each probe 7 is respectively provided with a fourth bending portion 71 which is bent and extended toward the electrode unit 6, and the extending end of the fourth bending portion 71 is arranged in close contact with the motor unit; by setting the bending structure formed by the fourth bending portion 71, when the electrode unit 6 squeezes the probe 7, the bending structure can absorb part of the deformation, thereby preventing the probe 7 as a whole from being irreversibly deformed due to excessive bending, thereby improving the structural strength of the probe 7.

[0055] In the embodiment of the present invention, the fourth bending portion 71 is disposed in close contact with the second bending portion 612 .

[0056] In an embodiment of the present invention, the extended end of the probe 7 is located on the outer side of the liquid outlet cover 13 in the radial direction, and the extended end of the fourth curved needle portion extends obliquely from the probe 7 to the liquid outlet cover 13 toward the bottom of the mounting groove 3; so that the extension direction of the extended end of the fourth bent portion 71 is inclined toward the installation direction of the liquid storage unit 1, thereby reducing the damage caused by the scratch between the motor unit and the fourth bent portion 71 and improving the service life of the probe 7.

[0057] In an embodiment of the present invention, a fifth bending portion 72 is provided on the extended end of each fourth bending portion 71, which is bent and extended toward the direction close to the probe 7; preferably, the fifth bending portion 72 is bent in an arc-shaped transition from the fourth bending portion 71; the electrode unit 6 is fit with the bent connection between the fourth bending portion 71 and the fifth bending portion 72, thereby further reducing the damage to the electrode unit 6 and the probe 7 respectively when the liquid storage unit 1 is assembled.

[0058] In the embodiment of the present invention, the extending end of the fifth bending portion 72 is arranged at a certain distance from the probe 7 to facilitate the compression deformation of the fifth bending portion 72 in the direction of the probe 7 .

[0059] In the embodiment of the present invention, the probe 7, the fourth bending portion 71 and the fifth bending portion 72 are integrally formed.

[0060] like Figure 4-7 As shown, in the embodiment of the present invention, a plug hole 31 is provided at the bottom of the installation groove 3 , and a plug-in portion 73 is provided on the probe 7 , and the plug-in portion 73 is detachably plugged into the plug hole 31 .

[0061] Through the above arrangement, by detachably setting the probe 7 on the mounting groove 3, the probe 7 can be replaced or removed for thorough cleaning to prevent the probe 7 from being deformed or contaminated by additives dripping from the liquid storage unit 1, resulting in inaccurate detection.

[0062] In an embodiment of the present invention, the plug-in portion 73 is a sheet-like structure, and the socket 31 is correspondingly configured as a long strip structure. Through a shape-matched plug-in method, the socket 31 limits the plug-in portion 73 circumferentially to prevent the probe 7 from rotating and deviating in the socket 31, resulting in poor contact between the probe 7 and the electrode unit 6.

[0063] In the embodiment of the present invention, the socket 31 passes through the bottom wall 32 of the bottom of the installation groove 3, and the extending end of the plug-in portion 73 protrudes from the bottom wall 32. A deformable snap-fit ​​structure 731 of the protruding wall surface is provided on the surrounding side wall of the extending end of the plug-in portion 73, and the snap-fit ​​structure 731 abuts against the bottom wall 32; when the plug-in portion 73 passes through the bottom wall 32, the plug-in portion 73 is limited by the snap-fit ​​structure 731 to prevent the plug-in portion 73 from being driven out of the socket 31 by friction when the liquid storage unit 1 is pulled out, thereby improving the installation stability of the plug-in portion 73.

[0064] In an embodiment of the present invention, the snap-fitting structure 731 is a rib plate extending obliquely from the extended end of the plug-in portion 73 to the mounting groove 3 toward a direction away from the plug-in portion 73, and the extended end of the snap-fitting structure 731 is arranged at a certain distance from the plug-in portion 73; when the plug-in portion 73 passes through the insertion hole 31, the obliquely extended snap-fitting structure 731 is compressed and deformed into the interval space between it and the plug-in portion 73, while ensuring the stability of the snap-fitting structure 731 in limiting the plug-in portion 73, making the plug-in process of the plug-in portion 73 smoother, and at the same time, the snap-fitting structure 731 is not prone to irreversible deformation due to excessive deformation during the plug-in process, thereby improving the durability of the snap-fitting structure 731.

[0065] In the embodiment of the present invention, a receiving opening is provided on the peripheral side wall of the plug-in portion 73 , and when the engaging structure 731 is compressed and deformed toward the plug-in portion 73 , the engaging structure 731 is located in the space in the receiving opening.

[0066] In an embodiment of the present invention, a recessed third pressure profile 33 is provided on the surface of the bottom wall 32 on the side away from the liquid storage unit 1, and the insertion hole 31 is correspondingly opened at the bottom of the third pressure profile 33. The side wall of the third pressure profile 33 is spaced apart from the snap-fit ​​structure 731, and the snap-fit ​​structure 731 abuts against the bottom of the third pressure profile 33. A space for accommodating the snap-fit ​​structure 731 is formed by the third pressure profile 33. At the same time, the third pressure profile 33 can strengthen the structural strength of the bottom wall 32, thereby preventing the bottom plate from being deformed due to excessive force when the snap-fit ​​structure 731 of the probe 7 squeezes the bottom plate in the direction close to the liquid storage unit 1.

[0067] In the embodiment of the present invention, a contact portion 34 is disposed on a side of the bottom wall 32 away from the liquid storage unit 1 ; a locking structure 731 is disposed on one side of the plug-in portion 73 , and the opposite side contacts the contact portion 34 .

[0068] In the embodiment of the present invention, the abutting portion 34 abuts against at least a side position of the insertion portion 73 opposite to the connection with the engaging structure 731 .

[0069] In the embodiment of the present invention, the abutting portion 34 is at least partially disposed in the third pressing profile 33 ; preferably, the abutting portion 34 and the third pressing profile 33 are integrally disposed.

[0070] In the embodiment of the present invention, a fourth fixing hole 732 is formed on the extending end of the plug-in portion 73, a fifth fixing hole 341 is correspondingly formed on the abutting portion 34, and a second fixing member is provided in the delivery device, the second fixing member passes through the third fixing hole and is connected to the fifth fixing hole 341.

[0071] In an embodiment of the present invention, the abutment portion 34 at least partially protrudes from the surface of the bottom wall 32 side away from the liquid storage unit 1, and the fifth fixing hole 341 is arranged on this part of the abutment portion 34; so that the second fixing member and the locking structure 731 are staggered at a certain distance to prevent the distance between the two components from being too small to affect the installation.

[0072] In an embodiment of the present invention, positioning protrusions 74 with protruding surfaces are respectively provided on two pairs of side surfaces of the probe 7, and each positioning protrusion 74 is respectively abutted against the bottom of the mounting groove 3; so as to limit the probe 7 and prevent the probe 7 from being inserted into the socket 31 too long, resulting in the probe 7 being unable to contact the electrode unit 6.

[0073] In the embodiment of the present invention, a receiving groove recessed inwardly is provided at the position where the bottom of the installation groove 3 abuts against each positioning protrusion 74; each positioning protrusion 74 is respectively inserted into the corresponding receiving groove one by one, and each positioning protrusion 74 is respectively flush with the bottom of the installation groove 3.

[0074] like Figure 1-8 As shown, in an embodiment of the present invention, the delivery device further includes a partition plate 5, which divides the internal space of the delivery device into a storage chamber for accommodating the liquid storage unit 1 and an equipment chamber for accommodating the liquid collecting channel 4; each mounting groove 3 is detachably arranged on the partition plate 5.

[0075] Through the above arrangement, by detachably arranging the mounting groove 3 on the partition plate 5, when the user removes the probe 7, the user can first take out the mounting groove 3 and then remove the probe 7 from the mounting groove 3, so that the user can clean, repair or replace the probe 7 conveniently.

[0076] In the embodiment of the present invention, the liquid storage unit 1 has a liquid extraction channel 11, and a check valve 12 is provided in the liquid extraction channel 11, and one end of the check valve 12 is sealed with the inner wall of the liquid extraction channel 11; the push rod assembly 2 pushes the check valve 12 to separate from the inner wall of the liquid extraction channel 11, so that the liquid extraction channel 11 is connected with the liquid suction channel 21;

[0077] In the embodiment of the present invention, the liquid storage unit 1 is provided with a liquid pumping channel 11, which is connected to the inside of the liquid storage unit 1. The detergent in the liquid storage unit 1 flows into the dispenser through the liquid pumping channel 11 to dispense the detergent.

[0078] In the embodiment of the present invention, a check valve 12 is provided in the liquid extraction channel 11, and the check valve 12 has a one-way conduction characteristic. The detergent in the liquid extraction channel 11 flows into the dispenser through the check valve 12, and at the same time, the detergent in the liquid suction channel 21 is prevented from flowing back into the liquid storage unit 1 through the liquid extraction channel 11. One end of the check valve 12 is sealed with the inner wall of the liquid extraction channel 11 to block the flow of detergent and prevent the detergent from leaking through the connection between the check valve 12 and the liquid extraction channel 11.

[0079] In the embodiment of the present invention, the push rod assembly 2 has a liquid suction channel 21 inside, and the liquid suction channel 21 is connected with the liquid extraction channel 11. The push rod assembly 2 pushes the check valve 12 to move, so that the check valve 12 is separated from the inner wall of the liquid extraction channel 11, and then the liquid extraction channel 11 is connected with the liquid suction channel 21, so that the detergent flows into the liquid suction channel 21 through the check valve 12.

[0080] In the embodiment of the present invention, the mounting groove 3 is arranged outside the push rod assembly 2, and is used to collect liquid leaked from the liquid extraction channel 11 when the push rod assembly 2 is separated from the check valve 12, so as to prevent the detergent from dripping or leaking.

[0081] In an embodiment of the present invention, during the installation process of the liquid storage unit 1, the liquid storage unit 1 gradually moves downward, and the push rod assembly 2 extends into the liquid storage unit 1, pushing the check valve 12 in the liquid extraction channel 11 to separate from the inner wall of the liquid extraction channel 11, so that the liquid extraction channel 11 is connected to the liquid suction channel 21, and then the liquid in the liquid storage unit 1 flows into the liquid suction channel 21 to release the detergent.

[0082] In an embodiment of the present invention, during the removal process of the liquid storage unit 1, the liquid storage unit 1 gradually moves upward, and the push rod assembly 2 and the check valve 12 gradually separate, so that the check valve 12 is sealed with the inner wall of the liquid extraction channel 11, and the liquid extraction channel 11 is not connected with the liquid suction channel 21, thereby preventing the liquid in the liquid storage unit 1 from flowing out.

[0083] In the embodiment of the present invention, a check valve 12 is provided to seal the inner wall of the liquid extraction channel 11 to prevent liquid leakage or backflow; a push rod assembly 2 is provided to push the check valve 12 to separate from the inner wall of the liquid extraction channel 11, so that the liquid extraction channel 11 and the liquid suction channel 21 are connected, and the liquid in the liquid storage unit 1 flows to the liquid suction channel 21 for delivery; an installation groove 3 is provided to collect liquid leaked from the liquid extraction channel 11 when the push rod assembly 2 is separated from the check valve 12, further preventing liquid leakage or dripping, avoiding malfunction of the washing equipment, and effectively ensuring the safety of the dispenser, thereby improving the user experience.

[0084] In the embodiment of the present invention, one end of the liquid extraction channel 11 close to the liquid storage unit 1 has an opening, and the liquid extraction channel 11 is connected to the inside of the liquid storage unit 1 through the opening, so that the liquid in the liquid storage unit 1 can flow into the liquid extraction channel 11.

[0085] In the embodiment of the present invention, one end of the check valve 12 close to the opening can extend into the opening, so that the check valve 12 has a sufficient movable distance.

[0086] In an embodiment of the present invention, an elastic mechanism is sleeved on one end of the check valve 12 close to the opening. During the separation of the check valve 12 from the inner wall of the liquid pumping channel 11, the elastic mechanism is squeezed and deformed; after the push rod assembly 2 is separated from the check valve 12, the elastic mechanism is reset step by step, pushing the check valve 12 back to its original position and sealing it with the inner wall of the liquid pumping channel 11.

[0087] In the embodiment of the present invention, the inner wall of the liquid pumping channel 11 is in a concave stepped structure. One end of the check valve 12 close to the stepped inner wall is set to a convex stepped structure that matches the inner wall of the liquid pumping channel 11, and the outer end surface of the check valve 12 abuts against the stepped inner wall of the liquid pumping channel 11 to achieve sealing of the liquid pumping channel 11.

[0088] In the embodiment of the present invention, one end of the push rod assembly 2 extends into the interior of the liquid pumping channel 11 and abuts against one end of the check valve 12 close to the inner wall of the liquid pumping channel 11 .

[0089] In the embodiment of the present invention, one end of the push rod assembly 2 close to the check valve 12 can extend into the interior of the liquid extraction channel 11. As the liquid storage unit 1 moves downward, the push rod assembly 2 abuts against one end of the check valve 12 close to the inner wall of the liquid extraction channel 11, and the push rod assembly 2 can push the check valve 12 to move, thereby separating the check valve 12 from the inner wall of the liquid extraction channel 11.

[0090] In the embodiment of the present invention, the other end of the push rod assembly 2 is extended out of the liquid pumping channel 11 .

[0091] In the embodiment of the present invention, one end of the push rod assembly 2 away from the check valve 12 can extend outside the liquid pumping channel 111 to provide an installation position for fixing the installation groove 3.

[0092] In the embodiment of the present invention, the inner wall of the liquid extraction channel 11 near the push rod assembly 2 is configured as a concave convex-shaped structure. The portion of the push rod assembly 2 extending into the liquid extraction channel 11 is configured as a convex convex-shaped structure, and convex ribs are provided on the outside of the push rod assembly 2, and sealing rings are provided between the convex ribs to increase the sealing between the push rod assembly 2 and the inner wall of the liquid extraction channel 11.

[0093] In the embodiment of the present invention, the mounting groove 3 extends from the outer peripheral wall of the push rod assembly 2 in a direction perpendicular to the push rod assembly 2 and then extends in a direction parallel to the push rod assembly 2 close to the liquid storage unit 1 to form a concave cavity.

[0094] Specifically, the mounting groove 3 provided outside the push rod assembly 2 can form a concave cavity structure. The mounting groove 3 extends from the outer peripheral wall of one end of the push rod assembly 2 extending out of the liquid extraction channel 11, extends a certain distance in a direction perpendicular to the push rod assembly 2, and then extends a certain distance in a direction parallel to the push rod assembly 2 close to the liquid storage unit 1, forming a concave cavity structure with a certain depth.

[0095] With the above arrangement, when the liquid storage unit 1 is pulled out from the push rod assembly 2, the check valve 12 gradually returns to its original position and seals against the inner wall of the liquid extraction channel 11, but some liquid may still drip from the gap. The concave mounting groove 3 is provided to collect the liquid that is separated from the push rod assembly 2 and the check valve 12 and leaks from the liquid extraction channel 11, thereby further preventing the liquid from dripping into the device and causing device failure.

[0096] In an embodiment of the present invention, the mounting groove 3 is a concave cavity structure, and the inner peripheral wall at the bottom of the mounting groove 3 is connected to the outer peripheral wall of the push rod assembly 2, which is used to collect the liquid leaked from the liquid extraction channel 11 when the push rod assembly 2 is separated from the check valve 12, and prevent the liquid from dripping into the device.

[0097] In the embodiment of the present invention, the push rod assembly 2 includes a first push rod 22 and a second push rod 23 , and one end of the first push rod 22 extends into the interior of the liquid pumping channel 11 .

[0098] It should be noted that the first push rod 22 is a portion of the push rod assembly 2 close to the check valve 12 ; the second push rod 23 is another portion of the push rod assembly 2 away from the check valve 12 and extending out of the liquid pumping channel 11 .

[0099] In the embodiment of the present invention, one end of the first push rod 22 close to the check valve 12 can extend into the inside of the liquid extraction channel 11. The first push rod 22 pushes the check valve 12 to separate from the inner wall of the liquid extraction channel 11, thereby achieving conduction between the liquid extraction channel 11 and the liquid suction channel 21.

[0100] In the embodiment of the present invention, the liquid suction channel 21 includes a first liquid suction channel 221 disposed inside the first push rod 22 , and a second liquid suction channel 231 disposed inside the second push rod 23 .

[0101] In the embodiment of the present invention, a first liquid suction channel 221 is provided inside the first push rod 22 , and a second liquid suction channel 231 is provided inside the second push rod 23 . The first liquid suction channel 221 and the second liquid suction channel 231 are communicated with each other.

[0102] In the embodiment of the present invention, the liquid suction port 222 of the first liquid suction channel 221 is communicated with the liquid extraction channel 11 .

[0103] In the embodiment of the present invention, a liquid suction port 222 is provided at one end of the first liquid suction channel 221 close to the liquid extraction channel 11. After the first push rod 22 pushes the check valve 12 to separate from the inner wall of the liquid extraction channel 11, the liquid suction port 222 of the first liquid suction channel 221 is connected with the liquid extraction channel 11, so that the liquid in the liquid extraction channel 11 flows to the first liquid suction channel 221 through the liquid suction port 222, and the liquid is discharged.

[0104] In the embodiment of the present invention, the liquid suction port 222 is disposed on one side of the top of the first push rod 22 .

[0105] In an embodiment of the present invention, the suction port 222 of the first suction channel 221 is arranged on one side of the first push rod 22 close to the top of the liquid extraction channel 11, so that when the check valve 12 is separated from the inner wall of the liquid extraction channel 11, it is convenient for the liquid to flow into the first suction channel 221.

[0106] In the embodiment of the present invention, the cross-sectional area of ​​the first liquid suction channel 221 is smaller than the cross-sectional area of ​​the second liquid suction channel 231 .

[0107] In an embodiment of the present invention, the first suction channel 221 is connected to the second suction channel 231. The cross-sectional area of ​​the first suction channel 221 is smaller than the cross-sectional area of ​​the second suction channel 231, that is, the volume of the first suction channel 221 is smaller than the volume of the second suction channel 231. Since the volume of the first suction channel 221 is small, the liquid flowing in from the liquid pumping channel 11 is squeezed by the inner wall of the first suction channel 221, thereby accelerating the flow rate of the liquid. The volume of the second suction channel 231 is large, so that a larger volume of liquid can be temporarily stored in the second suction channel 231, so that the flow of the liquid is slowed down, which is more conducive to the quantitative delivery of the dispenser.

[0108] In the embodiment of the present invention, the push rod assembly 2 further includes a liquid leakage prevention mechanism 24 .

[0109] In an embodiment of the present invention, the push rod assembly 2 and the mounting groove 3 can be configured as an integrally formed structure. When the mounting groove 3 collects a large amount of leaked liquid, the push rod assembly 2 needs to be disassembled to clean the mounting groove 3. At this time, after the push rod assembly 2 is disassembled, the anti-leakage mechanism 24 is used to prevent liquid from leaking from the liquid suction channel 21.

[0110] In the embodiment of the present invention, the anti-leakage mechanism 24 is disposed in the second liquid suction channel 231 , and is used to open or close the liquid outlet 232 of the second liquid suction channel 231 .

[0111] In the embodiment of the present invention, the anti-leakage mechanism 24 is disposed in the second liquid suction channel 231 and is disposed near the liquid outlet 232 of the second liquid suction channel 231. When the push rod assembly 2 is pulled out, the anti-leakage mechanism 24 is used to close the liquid outlet 232 of the second liquid suction channel 231 to prevent leakage of liquid in the second liquid suction channel 231. When the push rod assembly 2 is inserted, the anti-leakage mechanism 24 is pushed to open the liquid outlet 232 of the second liquid suction channel 231, so that the liquid flows into the dispenser through the liquid outlet 232 to achieve the liquid dispensing process.

[0112] In an embodiment of the present invention, the anti-leakage mechanism 24 is a ball valve. Specifically, the anti-leakage mechanism 24 can be set as a ball valve, which is arranged in the second liquid suction channel 231, and the ball valve is sealed with the inner wall of the liquid outlet 232 to prevent the liquid in the second liquid suction channel 231 from leaking. More specifically, when the push rod assembly 2 is inserted, the ball valve is separated from the inner wall of the liquid outlet 232, so that the liquid in the second liquid suction channel 231 flows into the dispenser through the liquid outlet 232. When the push rod assembly 2 is pulled out, the ball valve is sealed with the inner wall of the liquid outlet 232 to achieve the closure of the liquid outlet 232 and prevent liquid leakage.

[0113] In the embodiment of the present invention, the diameter of the ball valve is smaller than the inner diameter of the second liquid suction channel 231 and larger than the inner diameter of the first liquid suction channel 221 .

[0114] In the embodiment of the present invention, the diameter of the ball valve is smaller than the inner diameter of the second liquid suction channel 231 and larger than the inner diameter of the first liquid suction channel 221, that is, the diameter of the ball valve is smaller than the diameter of the inner peripheral wall of the second liquid suction channel 231, but larger than the diameter of the inner peripheral wall of the first liquid suction channel 221. In this way, a certain gap is reserved between the ball valve and the inner peripheral wall of the second liquid suction channel 231, so that the ball valve can move freely, so as to realize the sealing or separation of the ball valve and the inner wall of the liquid outlet 232, thereby realizing the closing or opening of the liquid outlet 232.

[0115] In the embodiment of the present invention, the dispenser further comprises a liquid collecting channel 4. The liquid collecting channel 4 is communicated with the second liquid suction channel 231, and the liquid flows into the dispenser through the liquid collecting channel 4.

[0116] In the embodiment of the present invention, one end of the second push rod 23 is disposed inside the liquid collecting channel 4 .

[0117] In the embodiment of the present invention, one end of the second push rod 23 close to the liquid collecting channel 4 extends into the liquid collecting channel 4 so that the liquid in the second liquid suction channel 231 flows into the conductive liquid collecting channel 4 .

[0118] In the embodiment of the present invention, a push rod 41 is provided in the liquid collecting channel 4 , and the push rod 41 extends into the liquid outlet 232 of the second liquid suction channel 231 to push the anti-leakage mechanism 24 to open the liquid outlet 232 .

[0119] In the embodiment of the present invention, a liquid leakage prevention mechanism 24 is provided in the second liquid suction channel 231, and the liquid leakage prevention mechanism 24 is sealed with the inner wall of the liquid outlet 232. A push rod 41 is provided at one end of the liquid collection channel 4 close to the liquid outlet 232, and the push rod 41 can extend into the liquid outlet 232 of the second liquid suction channel 231 and abut against the liquid leakage prevention mechanism 24.

[0120] In a specific implementation process, the push rod assembly 2 is inserted into the liquid collecting channel 4, and the top rod 41 pushes the anti-leakage mechanism 24 to separate from the inner wall of the liquid outlet 232, so as to open the liquid outlet 232, so that the second liquid suction channel 231 is connected to the liquid collecting channel 4. Alternatively, the push rod assembly 2 is pulled out of the liquid collecting channel 4, the top rod 41 is separated from the anti-leakage mechanism 24, and the anti-leakage mechanism 24 seals the inner wall of the liquid outlet 232, so as to close the liquid outlet 232.

[0121] In the embodiment of the present invention, the anti-leakage mechanism 24 may adopt a ball valve, and the movement process of the ball valve and the push rod 41 may refer to the description of the anti-leakage mechanism 24 and the push rod 41, which will not be repeated here.

[0122] In an embodiment of the present invention, the dispenser further comprises a partition plate 5. Specifically, the liquid storage unit 1 is disposed on the partition plate 5, and the partition plate 5 is used to support the liquid storage unit 1 and maintain the stability of the liquid storage unit 1.

[0123] In the embodiment of the present invention, the partition plate 5 is disposed outside the liquid storage unit 1 to support the liquid storage unit 1 .

[0124] In an embodiment of the present invention, the partition plate 5 is arranged below the liquid storage unit 1, the liquid storage unit 1 is inserted into the push rod assembly 2, and the portion of the liquid storage unit 1 close to the push rod assembly 2 abuts against the partition plate 5, so that the partition plate 5 can be used to support the liquid storage unit 1, thereby preventing the liquid storage unit 1 from moving or dislocating.

[0125] In the embodiment of the present invention, the mounting groove 3 is detachably disposed inside the partition plate 5 .

[0126] In the embodiment of the present invention, the mounting groove 3 is arranged inside the partition plate 5. A through hole is penetrated in the partition plate 5, and the mounting groove 3 is embedded in the through hole, so that the mounting groove 3 can be disassembled. In this way, when a lot of liquid is collected in the mounting groove 3, the user needs to clean the mounting groove 3 regularly, and the mounting groove 3 can be disassembled separately for cleaning, so as to prevent the contamination of the mounting groove 3 caused by the residual liquid, thereby improving the user's use experience.

[0127] In an embodiment of the present invention, the dispenser further comprises a dispensing pump, and the dispensing pump comprises a liquid suction port and a liquid discharge port.

[0128] In the embodiment of the present invention, the liquid extraction port is communicated with the liquid collecting channel 4, and the liquid discharge port is communicated with an external device.

[0129] In the embodiment of the present invention, after the liquid storage unit 1 is inserted into the push rod assembly 2, the push rod assembly 2 pushes the check valve 12 to separate from the inner wall of the liquid extraction channel 11, so that the liquid flows into the liquid suction channel 21 connected to the liquid extraction channel 11; the push rod assembly 2 is inserted into the liquid collection channel 4, and the push rod 41 pushes the anti-leakage mechanism 24 to open the liquid outlet 232, so that the liquid flows into the liquid collection channel 4. The delivery pump is in a working state, and the sucked liquid enters the delivery pump through the liquid extraction port, and then is delivered into the connected external device through the liquid discharge port of the delivery pump, thereby realizing the delivery process of the liquid.

[0130] The above description 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 above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A delivery device, comprising: A liquid storage unit (1) storing additives therein; The mounting groove (3) is used to carry the liquid storage unit (1), and a push rod assembly (2) is arranged at the bottom of the groove, and the liquid suction channel (21) inside the push rod assembly (2) is connected to the inside of the liquid storage unit (1) through the bottle mouth of the liquid storage unit (1); The electrode unit (6) is arranged in the liquid storage unit (1) and generates a corresponding electric potential according to the liquid level of the additive when power is supplied; It is characterized in that It also comprises a probe (7) which is arranged at the bottom of the installation groove (3), the fixed end of which is electrically connected to the liquid level detection circuit of the dispensing device, the extended end of the electrode unit (6) extends to the outside of the liquid storage unit (1) through the bottle mouth, and the extended end of the probe (7) is arranged in close contact with the electrode unit (6).

2. A delivery device according to claim 1, characterized in that: The liquid storage unit (1) is provided with a liquid outlet end cover (13) with a protruding surface on the outer periphery of the bottle mouth, and the liquid outlet end cover (13) is provided with a positioning channel and an installation channel connected to the bottle mouth, the positioning channel is sleeved on the push rod assembly (2), and the electrode unit (6) is correspondingly installed in the installation channel; Preferably, at least two installation channels are provided on the liquid outlet end cover (13), which are respectively arranged around the outer circumference of the positioning channel.

3. A delivery device according to claim 2, characterized in that: The extended end of the electrode unit (6) is provided with a bent portion bent in a direction away from the positioning channel, and the flange (61) is arranged to fit the probe (7).

4. A delivery device according to claim 3, characterized in that: The outlet of the positioning channel is arranged on an end surface of the liquid outlet end cover (13) away from the liquid storage unit (1); The flange (61) comprises a first bent portion (611) bent and extended in a direction away from the positioning channel, and a second bent portion (612) bent from the first bent portion (611) in a direction close to the liquid storage unit (1); the second bent portion (612) is arranged to fit with the end surface of the outer peripheral surface of the liquid outlet end cover (13), and the probe (7) fits with the second bent portion (612).

5. A delivery device according to claim 3, characterized in that: A second pressure profile (131) recessed inwardly is provided at a position where the outer circumference of the liquid outlet end cover (13) and the second bent portion (612) are in contact with each other. One side of the second bent portion (612) is in contact with the bottom of the second pressure profile (131), and the opposite side is flush with the outer circumference of the liquid outlet end cover (13). Preferably, the bottom of the second pressure profile (131) is provided with a first fixing hole (132) recessed inwardly, and the extending end of the second bent portion (612) is provided with a third bent portion (613) bent and extended in a direction close to the liquid outlet end cover (13), and the third bent portion (613) is correspondingly inserted into the first fixing hole (132).

6. A delivery device according to claim 1, characterized in that: The extended end of each probe (7) is respectively provided with a fourth bending portion (71) that bends and extends toward the electrode unit (6), and the extended end of the fourth bending portion (71) is arranged in close contact with the motor unit.

7. A delivery device according to claim 6, characterized in that: A fifth bending portion (72) is provided on the extended end of each fourth bending portion (71) and is bent and extended in a direction close to the probe (7); Preferably, the extending end of the fifth bending portion (72) is arranged at a certain distance from the probe (7).

8. A delivery device according to any one of claims 1 to 7, characterized in that: The bottom of the installation groove (3) is provided with an insertion hole (31), and the probe (7) is provided with an insertion portion (73), and the insertion portion (73) is detachably inserted into the insertion hole (31); Preferably, the plug-in portion (73) is a sheet-like structure, and the plug hole (31) is correspondingly configured as a long strip structure.

9. A delivery device according to claim 8, characterized in that: The insertion hole (31) passes through the bottom wall (32) of the installation groove (3), the extended end of the plug-in portion (73) protrudes from the bottom wall (32), and a deformable snap-fit ​​structure (731) protruding from the wall surface is provided on the peripheral side wall of the extended end of the plug-in portion (73), and the snap-fit ​​structure (731) abuts against the bottom wall (32); Preferably, the engaging structure (731) is a rib extending obliquely from the extending end of the plug-in portion (73) to the mounting groove (3) in a direction away from the plug-in portion (73), and the extending end of the engaging structure (731) is arranged at a certain distance from the plug-in portion (73); In another preferred embodiment, a contact portion (34) is provided on a side of the bottom wall (32) away from the liquid storage unit (1); a snap-fit ​​structure (731) is provided on one side of the plug-in portion (73), and the opposite side contacts the contact portion (34).

10. A delivery device according to claim 8, characterized in that: Positioning protrusions (74) protruding from the surface are respectively provided on two pairs of side surfaces of the probe (7), and each positioning protrusion (74) is respectively in contact with the bottom of the installation groove (3); Preferably, a receiving groove recessed inwardly is provided at the position where the bottom of the installation groove (3) abuts against each positioning protrusion (74); each positioning protrusion (74) is respectively inserted into the corresponding receiving groove in a one-to-one correspondence, and each positioning protrusion (74) is respectively flush with the bottom of the installation groove (3).

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