Connecting structure of detergent dispenser and washing equipment

Abstract

The invention discloses a connecting structure of a detergent dispenser and washing equipment, the connecting structure comprises a plug-in bottle opening and a plug-in connector, the plug-in connector is provided with a plug-in groove recessed inwards, and the plug-in connector extends into the plug-in groove to conduct the plug-in bottle opening; a gap is formed between the inserting groove and the top of the inserting joint; and the pipe sleeve is arranged on the insertion joint in a sleeving manner, and the upper end of the pipe sleeve extends into the gap and is in contact with the insertion groove. When the inserting groove of the inserting bottle opening is in inserting connection with the top of the inserting connector, a gap is formed between the inserting groove and the inserting connector, the inserting connector is sleeved with the pipe sleeve, the end of the pipe sleeve makes contact with the inserting groove, in the process that the inserting bottle opening is pulled out of the inserting connector, washing agents continuously flowing out can be temporarily stored in the pipe sleeve, and the washing agents are prevented from overflowing to the outside; and the temporarily stored detergent can be collected in time, so that waste is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of detergent dispensing, and in particular relates to a connection structure of a detergent dispenser and a washing device. Background Art

[0002] As people's living standards continue to improve, washing machines are rapidly becoming popular in every household, bringing convenience to users. At present, most washing machines have increasingly rich functions, such as automatic dispensing of detergents, which improves user experience.

[0003] The existing detergent bottle is provided with a check valve at the bottle mouth, and the dispensing device is provided with a push rod that can push open the valve core of the check valve, so as to connect the interior of the detergent bottle with the dispensing water path of the dispensing device to form a complete dispensing channel. In order to ensure the sealing performance of the detergent bottle and the push rod on the dispensing device when connected, a sealing ring is provided at the interface of the detergent bottle.

[0004] In the actual operation process, as the detergent bottle is pulled out, the reset component on the check valve gradually closes the valve core and the valve port. During the withdrawal of the push rod, the detergent bottle is always connected to the interface, and there will be detergent in the cavity where the interface and the detergent bottle are connected. After the detergent bottle is completely pulled out, this part of the detergent will flow to the outside of the interface, resulting in a waste of detergent and pollution to the external environment.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a connection structure for a detergent dispenser. When the plug-in groove of the plug-in bottle mouth is plugged in with the top of the plug-in connector, a gap is provided between the two, and a pipe sleeve is sleeved on the plug-in connector, and its end is in contact with the plug-in groove. In the process of pulling out the plug-in interface from the plug-in bottle mouth, the detergent that continues to flow out will be temporarily stored in the pipe sleeve to prevent the detergent from overflowing to the outside and causing pollution to the external environment, and the temporarily stored detergent can be collected in time to avoid waste.

[0007] Another object of the present invention is to provide a washing device.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a connection structure of a detergent dispenser, including a plug-in bottle mouth and a plug-in connector, the plug-in interface has a plug-in groove recessed inward, the plug-in connector extends into the plug-in groove to connect the plug-in bottle mouth; there is a gap between the plug-in groove and the top of the plug-in connector; and further includes,

[0009] The pipe sleeve is sleeved on the plug-in joint, and the upper end of the pipe sleeve extends into the gap and contacts with the plug-in groove.

[0010] Further, the sleeve portion protrudes from the plug connector, and the length of the protruding portion is greater than the length of the gap;

[0011] The tube sleeve is made of elastic material.

[0012] Further, the sleeve includes,

[0013] The sealing part is sleeved on the outside of the plug-in joint, and the outer wall of the sealing part contacts the inner wall of the plug-in bottle mouth;

[0014] The protruding portion is connected to the sealing portion; when connected, the protruding portion contacts the bottom of the plug-in groove and bends in a direction away from or close to the inner wall of the plug-in bottle mouth.

[0015] Furthermore, the sealing portion is a V-shaped sealing ring, and the periphery of the sealing portion contacts the inner wall of the plug-in bottle mouth.

[0016] Furthermore, the outer wall of the plug connector is provided with a plurality of annular installation grooves spaced apart along the axial direction thereof, and the sealing portion is provided in any of the annular installation grooves;

[0017] Preferably, the sealing portion is arranged in an annular mounting groove close to the bottle opening;

[0018] More preferably, a sealing portion is provided in each annular mounting groove.

[0019] Furthermore, the protrusion extends upward from the connection with the sealing portion, and gradually transitions away from the axis direction of the protrusion in a smooth manner;

[0020] The maximum opening diameter of the extended end of the protrusion is smaller than or equal to the diameter of the plug-in slot.

[0021] Furthermore, a first annular limiting groove is provided on the outermost side wall of the plug-in groove, and the size of the groove of the first annular limiting groove is greater than or equal to the thickness of the protruding portion.

[0022] Furthermore, the protrusion extends outward from the connection with the sealing portion, and first gradually moves away from and then gradually approaches the axis direction of the protrusion in a smooth transition;

[0023] The opening diameter of the extended end of the protrusion is between the diameter of the inserting groove and the valve port diameter of the check valve.

[0024] Furthermore, a second annular limiting groove is provided on the side wall between the edge side wall of the plug-in groove and the valve port of the check valve, and the groove size of the second annular limiting groove is greater than or equal to the thickness of the protruding portion;

[0025] Preferably, the side wall of the protrusion first moves away from and then approaches the smooth transition point in the axial direction of the protrusion to contact with the inner wall of the temporary storage cavity to form a seal.

[0026] The present invention also provides a washing device, including an external water pipe, having any of the above-mentioned detergent dispensers, wherein a water delivery channel is provided in the detergent dispenser, and a water outlet of the water delivery channel is connected to the external water pipe.

[0027] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] (1) The present invention provides a gap between the plug-in groove of the plug-in bottle mouth and the top of the plug-in connector when the two are plugged in, and a pipe sleeve is sleeved on the plug-in connector, the end of which is in contact with the plug-in groove. When the plug-in bottle mouth is pulled out of the plug-in connector, the detergent that continues to flow out will be temporarily stored in the pipe sleeve, thereby preventing the detergent from overflowing to the outside and causing pollution to the external environment. The temporarily stored detergent can be collected in time to avoid waste.

[0029] (2) The tube sleeve of the present invention protrudes from the plug-in connector, and the length of the protruding portion is greater than the length of the gap. The tube sleeve is made of elastic material, which can ensure that after the plug-in connector is fully connected with the plug-in bottle mouth, the upper end of the tube sleeve can firmly abut against the side wall of the bottom of the plug-in groove, thereby preventing detergent from overflowing from the contact surface between the bottom of the plug-in groove and the upper end of the tube sleeve. In addition, due to the elastic material, it can undergo a certain amount of deformation in the axial direction, thereby ensuring that the tube sleeve will not be squeezed or slide toward the bottom of the plug-in interface due to its overly hard material.

[0030] (3) The present invention provides a plurality of annular mounting grooves at intervals along the axial direction of the outer wall of the plug-in connector, and the sealing portion is disposed in any of the annular mounting grooves. According to actual needs, the insertion depth of the plug-in connector when connected to the plug-in groove can be adaptively selected to select the corresponding position of the sealing portion and the socket thereof, thereby making the practical scope of assembly wider.

[0031] (4) The protrusion of the present invention extends upward from the connection with the sealing portion, and smoothly transitions away from the axial direction of the protrusion. The maximum opening diameter of the extended end of the protrusion is less than or equal to the diameter of the plug-in slot. When the end face of the protrusion contacts the bottom of the plug-in slot, it is avoided that the maximum opening diameter of the protrusion exceeds the bottom diameter of the plug-in slot, which causes the end of the protrusion to fail to contact the bottom of the plug-in slot perfectly, and partial deformation occurs at its upper end, causing detergent to overflow from the contact surface between the protrusion and the plug-in slot.

[0032] (5) The protrusion of the present invention extends outward from the connection with the sealing portion, and first gradually moves away from and then gradually approaches the axial direction of the protrusion in a smooth transition; the opening diameter of the extended end of the protrusion is between the diameter of the plug-in groove and the valve port diameter of the check valve, and when the top of the protrusion is squeezed, it is easier to be compressed and deformed along the axial direction; at the same time, the top is not easy to deform after contact, which effectively ensures the sealing performance between the protrusion and the plug-in groove.

[0033] (6) The side wall of the smooth transition of the protrusion away from and then approaching the axial direction of the protrusion contacts the inner wall of the temporary storage cavity to form a seal, and the outer side wall of the smooth transition of the protrusion in the extension direction can contact the inner wall of the plug-in groove, so that a sealing structure is naturally formed between the outer periphery of the protrusion and the plug-in groove. This further improves the sealing performance of the plug-in bottle mouth and the plug-in interface in the axial direction.

[0034] 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

[0035] 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:

[0036] Figure 1 It is a schematic diagram of the general assembly structure of the present invention;

[0037] Figure 2 is a cross-sectional view of one embodiment of the present invention;

[0038] Figure 3 is a cross-sectional view of one embodiment of the present invention;

[0039] Figure 4 is a cross-sectional view of another embodiment of the present invention;

[0040] Figure 5 It is a cross-sectional view of another embodiment of the present invention.

[0041] In the figure: 1, plug-in bottle mouth; 11, check valve; 111, valve core; 112, valve mouth; 12, gap; 2, plug-in joint; 21, annular mounting groove; 22, pipe sleeve; 221, sealing part; 222, protruding part; 23, push rod.

[0042] 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

[0043] 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.

[0044] 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.

[0045] 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.

[0046] like Figures 1 to 5 As shown, a connection structure of a detergent dispenser described in the present invention comprises a plug-in bottle mouth 1 having a plug-in groove recessed inwardly, a check valve 11 being provided on the plug-in bottle mouth 1; and a plug-in connector 2 having a push rod 23 protruding from the top of the plug-in connector 2 provided therein, and when the plug-in bottle mouth 1 is connected to the plug-in connector 2, the push rod 23 can push the valve core 111 of the check valve 11 to realize conduction between the plug-in bottle mouth 1 and the plug-in connector 2.

[0047] In the present invention, the detergent dispenser comprises a liquid storage container and a dispense water channel.

[0048] Specifically, the liquid storage container has a accommodating cavity for filling detergent, and the liquid storage container can be a liquid storage bottle, a liquid storage box, or a container with a chamber of any shape. The liquid storage container is provided with a plug-in bottle mouth 1 for the detergent to flow through, and the free end of the plug-in bottle mouth 1 extends downward along its edge into a sleeve shape to form the plug-in groove. A check valve 11 is provided inside the plug-in bottle mouth 1, wherein the valve mouth 112 is opened on the bottom side wall of the plug-in groove, that is, the valve body of the check valve 11 penetrates the plug-in groove through the valve mouth 112. The liquid storage container forms a liquid extraction channel from top to bottom.

[0049] Specifically, the water supply channel includes a water inlet branch, a water mixing branch and a water outlet branch connected in sequence, and the water introduced into the water inlet branch and the extracted detergent are mixed in the water mixing branch and flow out from the water outlet branch. Among them, a plug connector 2 is provided on the water mixing branch, and the plug connector 2 is in the shape of a through tube. A push rod 23 is provided at the center of the plug connector 2, and a plurality of connecting ribs extending toward the inner wall of the plug connector 2 are provided at intervals on the outer wall of the push rod 23, so that the push rod 23 can be connected to the plug connector 2, and a liquid guide channel for liquid introduction is formed between the plug connector 2 and the connecting ribs.

[0050] However, when the existing plug-in bottle mouth 1 is docked with the plug connector 2, in order to ensure the sealing performance of the flow channel formed by the liquid extraction channel and the liquid guide channel after the connection between the two, a sealing ring will be set on the plug connector 2 to ensure that the liquid will not overflow from the gap between the plug-in bottle mouth 1 and the plug connector 2. However, the detergent in the liquid storage container needs to be replaced after use. In the process of gradually pulling the plug-in bottle mouth 1 upward, since the valve core 111 of the check valve 11 cannot be closed instantaneously, the detergent will continue to flow out of the liquid storage container when the plug-in bottle mouth 1 is separated from the plug connector 2. There is residual liquid between the plug-in bottle mouth 1 and the plug connector 2, and it is not put into the mixed water branch in time. This part of the residual liquid will flow to the outside world because it is not collected, thereby causing pollution to the outside world and also causing waste of detergent.

[0051] In order to overcome the above-mentioned defects, the present invention has made corresponding improvements:

[0052] Furthermore, the plug-in bottle mouth 1 is slidably sleeved on the outer side of the plug-in connector 2, and when connected, there is a gap 12 between the plug-in groove and the top of the plug-in connector 2;

[0053] It also includes a sleeve 22 which is sleeved on the plug connector 2. The upper end of the sleeve 22 extends into the gap 12 and contacts the plug slot.

[0054] In the present invention, the push rod 23 is arranged to protrude from the upper end of the plug connector 2, so that when the plug bottle mouth 1 is slidably sleeved onto the plug connector 2, the ends of the two gradually approach each other. Pairs of spring buckles are arranged symmetrically about the center of the plug connector 2, and buckle grooves matching the spring buckles are arranged on the outer side of the plug bottle mouth 1. When the plug connector 2 is connected to the plug bottle mouth 1, there is a certain gap 12 between the end of the plug connector 2 and the bottom of the plug groove.

[0055] A pipe sleeve 22 is sleeved on the plug connector 2. After the plug connector 2 is connected to the plug bottle mouth 1, the upper end of the pipe sleeve 22 can be in contact with the bottom of the plug slot. Through the provision of the pipe sleeve 22, a temporary storage and conduction channel can be provided in the gap 12 formed between the plug connector 2 and the plug slot. In the process of pulling out the plug connector 2 from the plug bottle mouth 1, the detergent that continues to flow out will be temporarily stored in the pipe sleeve 22, so that the detergent will not overflow to the outside and cause pollution to the external environment, and the temporarily stored detergent can be collected in time to avoid waste.

[0056] Furthermore, the sleeve 22 partially protrudes from the plug connector 2, and the length of the protruding portion 222 is greater than the length of the gap 12;

[0057] The pipe sleeve 22 is made of elastic material.

[0058] In the present invention, when the tube sleeve 22 is connected to the outer wall of the plug connector 2, part of its upper end protrudes from the upper end of the plug connector 2 to form a temporary storage chamber. The protruding length of the tube sleeve 22 is longer than the length of the gap 12 between the plug connector 1 and the plug slot, so that after the plug connector 2 is completely docked with the plug bottle mouth 1, the upper end of the tube sleeve 22 can firmly abut against the side wall of the bottom of the plug slot, thereby preventing detergent from overflowing from the contact surface between the bottom of the plug slot and the upper end of the tube sleeve 22. In addition, the tube sleeve 22 is made of elastic material, so that when the tube sleeve 22 abuts against the bottom of the plug slot, a certain amount of deformation can occur in the axial direction, thereby ensuring that the tube sleeve 22 will not be squeezed or slide to the bottom of the plug connector 1 due to its too hard material.

[0059] Among them, the specific working process of the connection structure of the detergent dispenser is as follows:

[0060] First, align the plug-in bottle mouth 1 with the plug-in connector 2 and plug it downward, the plug-in connector 2 extends into the plug-in groove, and the upper end of the pipe sleeve 22 continuously approaches the bottom of the plug-in groove until they touch each other, forming a flow channel for the detergent between the plug-in bottle mouth 1, the plug-in connector 2 and the pipe sleeve 22;

[0061] Then, after the plug-in bottle mouth 1 and the plug-in connector 2 are connected, a gap 12 is formed between the ends of the two; the upper end of the pipe sleeve 22 extends into the gap 12 and abuts against the bottom of the plug-in groove, and is bent and deformed, and the internal volume is reduced, but a flow channel for the detergent is still formed between the plug-in bottle mouth 1, the plug-in connector 2 and the pipe sleeve 22;

[0062] Finally, when the plug-in connector 2 is pulled out from the plug-in bottle mouth 1, the sleeve 22 gradually recovers the bent and deformed state, and the internal volume increases; in the process of recovering the bent and deformed state, the detergent flowing out of the check valve 11 will be temporarily stored on the sleeve 22; until the sleeve 22 loses contact with the bottom of the plug-in groove, the check valve 11 is closed, and all the detergent flowing out during the closing process is temporarily stored in the sleeve 22.

[0063] Further, the sleeve 22 includes,

[0064] The sealing part 221 is sleeved on the outside of the plug connector 2, and the outer wall of the sealing part 221 contacts the inner wall of the plug-in bottle mouth 1;

[0065] The protruding portion 222 is connected to the sealing portion 221 ; when connected, the protruding portion 222 contacts the bottom of the plug-in groove and bends in a direction away from or close to the inner wall of the plug-in bottle mouth 1 .

[0066] In the present invention, the pipe sleeve 22 is divided into two parts, namely, a protruding part 222 and a sealing part 221. The sealing part 221 is sleeved on the outside of the plug connector 2 to achieve the connection and fixation of the entire pipe sleeve 22 and the plug connector 2. At the same time, after being sleeved and fixed on the plug connector 2, the outside of the sealing part 221 can contact the inner wall of the plug bottle mouth 1, thereby achieving the seal between the plug bottle mouth 1 and the plug connector 2, and preventing the detergent from overflowing from the gap 12 between the two.

[0067] The protrusion 222 is coaxially connected to the upper end face of the sealing portion 221, and extends upwardly to be higher than the end face of the plug connector 2. The protrusion 222 is integrally formed with the sealing portion 221. When the plug connector 1 slides to the connection position in the plug slot, the upper end of the protrusion 222 contacts the bottom of the plug slot. Since its extension length is greater than the length of the gap 12, the protrusion 222 will bend and deform. Specifically, after the protrusion 222 is compressed, its deformed position will tend to bend in a direction away from or close to the inner wall of the plug-in bottle mouth 1. Therefore, the design margin of the protrusion 222 is optimized, which not only meets the sealing performance when in contact with the bottom of the plug slot, but also ensures the stable connection between the protrusion 222 and the plug connector 1.

[0068] In actual operation, when the plug-in bottle mouth 1 is plugged in and out, the protrusion 222 can gradually return to its original state, and the protrusion 222 as a whole will deform upward, so that the volume that the protrusion 222 can accommodate increases. In the process of pulling out the plug-in bottle mouth 1, the detergent that flows out before the check valve 11 is closed will remain in the protrusion 222, effectively preventing the detergent from overflowing.

[0069] Furthermore, the sealing portion 221 is a V-shaped sealing ring, and the periphery of the sealing portion 221 contacts the inner wall of the plug-in bottle mouth 1 .

[0070] In the present invention, the sealing part 221 can be a standard sealing member - a V-shaped sealing ring. The inner ring of the sealing part 221 is tightly sleeved with the outer wall of the plug-in interface 1, and its outer side wall is in contact with the groove wall of the plug-in groove. Thus, the sealing between the plug-in interface 1 and the plug-in bottle mouth 1 at the peripheral wall can be guaranteed.

[0071] Furthermore, the outer wall of the plug connector 2 is provided with a plurality of annular mounting grooves 21 at intervals along the axial direction thereof, and the sealing portion 221 is provided in any of the annular mounting grooves 21;

[0072] Preferably, the sealing portion 221 is disposed in the annular mounting groove 21 close to the bottle opening 1;

[0073] More preferably, each annular mounting groove 21 is provided with a sealing portion 221 .

[0074] In the present invention, the outer wall of the plug connector 2 is provided with a plurality of annular mounting grooves 21 at intervals from top to bottom along its axial direction. According to actual needs, the insertion depth of the plug connector 2 when connected with the plug groove can be adaptively selected to select the corresponding position of the sealing portion 221 and its sleeve, so that the practical scope of assembly is wider.

[0075] Preferably, when the sealing portion 221 is arranged in the annular mounting groove 21 closest to the bottle mouth 1, it can ensure that the extension height of the protrusion 222 connected to the sealing portion 221 is minimized, which can effectively save the material cost of making the sleeve.

[0076] More preferably, a sealing portion 221 is provided in each annular mounting groove 21 of the plug connector 2, that is, a V-shaped sealing ring is sleeved thereon. By arranging the multi-layer sealing portions 221 from top to bottom on the plug connector 2, the axial sealing performance between the plug connector 2 and the plug bottle mouth 1 can be effectively guaranteed.

[0077] Furthermore, the protrusion 222 extends upward from the connection with the sealing portion 221, and the direction in which it gradually moves away from the axis of the protrusion 222 smoothly transitions;

[0078] The maximum opening diameter of the extended end of the protrusion 222 is smaller than or equal to the diameter of the insertion slot.

[0079] In the present invention, a preferred design of one of the protrusions 222 is as follows: the lower end of the protrusion 222 is connected to the sealing portion 221 and extends outward from bottom to top. The peripheral wall of the protrusion 222 gradually extends outward in a direction away from its axis, and the whole presents a smooth transition structure. That is, the longitudinal section of the protrusion 222 is roughly trumpet-shaped, and the maximum opening diameter of the trumpet mouth is at most equal to the diameter of the plug-in slot. When the end face of the protrusion 222 contacts the bottom of the plug-in slot, the maximum opening diameter of the protrusion 222 is avoided to be larger than the bottom diameter of the plug-in slot, which will cause the end of the protrusion 222 to be unable to contact the bottom of the plug-in slot perfectly, and partial deformation will occur at its upper end, causing the detergent to overflow from the contact surface between the protrusion 222 and the plug-in slot.

[0080] Furthermore, a first annular limiting groove is provided on the outermost side wall of the plug-in groove, and the size of the groove opening of the first annular limiting groove is greater than or equal to the thickness of the protruding portion 222 .

[0081] In the present invention, a first annular limiting groove is provided at the maximum edge of the groove bottom of the plug-in groove, and the first limiting groove can also be provided at the connection between the groove bottom of the plug-in groove and the peripheral wall. The size of the groove opening is greater than or equal to the thickness of the protruding portion 222. When the plug-in bottle mouth 1 is sleeved on the plug-in connector 2, the uppermost opening of the protruding portion 222 can be just in the first annular limiting groove provided on the plug-in groove. Through the above arrangement, it is ensured that the force transmission at each position is uniform when the upper end of the protruding portion 222 is squeezed and deformed, and the protruding portion 222 will not be tilted to one side due to uneven deformation caused by squeezing, thereby affecting the sealing performance.

[0082] Furthermore, the protrusion 222 extends outward from the connection with the sealing portion 221, and first gradually moves away from and then gradually approaches the axis direction of the protrusion 222 in a smooth transition;

[0083] The opening diameter of the extended end of the protrusion 222 is between the diameter of the insertion groove and the diameter of the valve port 112 of the check valve 11 .

[0084] In this embodiment:

[0085] In the first stage, during the connection between the plug connector 2 and the plug bottle mouth 1, the protrusion 222 gradually approaches the bottom of the plug slot and contacts it, and the uppermost opening of the protrusion 222 completely covers the edge of the bottom of the plug slot;

[0086] In the second stage, after the protrusion 222 contacts the bottom of the plug-in slot and continues to move upward, the opening of the middle section of the protrusion 222 gradually narrows, so that the portion of the protrusion 222 that is higher than the length of the gap 12 adapts to the assembly relationship by means of narrowing and deformation of the opening and lowering the height; the top of the protrusion 222 is against the bottom edge of the plug-in slot, and the portion of the protrusion 222 in the gap 12 approaches its axial direction and narrows and deforms.

[0087] In the present invention, the preferred design of another protrusion 222 is as follows: the lower end of the protrusion 222 is connected to the upper end of the sealing portion 221 and extends outward from bottom to top. The peripheral wall of the protrusion 222 first gradually moves away from its axial direction, and then gradually approaches its axial direction to smoothly transition and extend outward, and also smoothly transitions in each connecting section. That is, the protrusion 222 is drum-shaped as a whole, and the size of its uppermost opening is between the bottom diameter of the plug-in slot and the diameter of the valve port 112 of the check valve 11.

[0088] When the end surface of the protrusion 222 contacts the bottom of the insertion slot, the protrusion 222 is designed in a drum shape, and the upper and lower parts of the protrusion 222 are symmetrically arranged. When the top of the protrusion 222 is squeezed, it is easier to be compressed and deformed along the axial direction; at the same time, the top is not easy to deform after contact, which effectively ensures the sealing performance between the protrusion 222 and the insertion slot.

[0089] Furthermore, a second annular limiting groove is provided on the side wall between the edge side wall of the plug-in groove and the valve port 112 of the check valve 11, and the groove size of the second annular limiting groove is greater than or equal to the thickness of the protruding portion 222;

[0090] Preferably, the side wall of the protrusion 222 at a smooth transition point in the axial direction away from and then close to the protrusion 222 contacts the inner wall of the temporary storage cavity to form a seal.

[0091] In the present invention, it is recorded in the above embodiment that: the valve port 112 of the check valve 11 is arranged on the bottom of the plug-in slot for plugging the bottle mouth 1, so that the liquid storage container and the plug-in slot are connected. A second annular limiting groove is arranged on the bottom of the plug-in slot except the valve port 112 of the check valve 11, and when the top of the protrusion 222 is squeezed by the bottom of the plug-in slot, the upper end of the protrusion 222 is stuck in the second annular limiting groove. Similarly, through the above arrangement, it is ensured that the force transmission at each position is uniform when the upper end of the protrusion 222 is squeezed and deformed, and the protrusion 222 will not be tilted to one side due to uneven deformation caused by squeezing, thereby affecting the sealing performance.

[0092] Preferably, after the plug interface 1 is inserted into the plug groove and the plug interface 1 is connected to the plug bottle mouth 1, the outer wall of the smooth transition in the extension direction of the protrusion 222 can contact the inner wall of the plug groove. This naturally forms a sealing structure between the outer periphery of the protrusion 222 and the plug groove, thereby further improving the sealing performance of the plug bottle mouth 1 and the plug interface 1 in the axial direction.

[0093] In this embodiment:

[0094] In the first stage, during the connection between the plug connector 2 and the plug bottle mouth 1, the protrusion 222 gradually approaches the bottom of the plug groove until it contacts it, and the uppermost opening of the protrusion 222 is covered on the side wall of the groove bottom between the maximum edge of the groove bottom of the plug groove and the valve mouth 112 of the check valve 11;

[0095] In the second stage, after the protrusion 222 contacts the bottom of the plug-in groove and continues to move upward, the opening of the middle section of the protrusion 222 gradually increases, so that the part of the protrusion 222 that is higher than the length of the gap 12 adapts to the assembly relationship by deformation in the form of enlarged opening and reduced height; the top of the protrusion 222 and the maximum edge of the bottom of the plug-in groove and the side wall of the bottom of the groove between the valve port 112 of the check valve 11 are abutted, and the part of the protrusion 222 in the gap 12 moves away from its axial direction and widens.

[0096] The present invention also provides a washing device, comprising an external water pipe, having a detergent dispenser as described in any of the above-mentioned embodiments, wherein a water delivery channel is provided in the detergent dispenser, and a water outlet of the water delivery channel is connected to the external water pipe. The detergent dispenser as described in any of the above-mentioned embodiments is provided with a water delivery channel, and a water outlet of the water delivery channel is connected to the external water pipe.

[0097] Specifically, the water outlet of the water delivery water circuit is connected to the above-mentioned water outlet branch, and the water outlet branch is connected to the external water pipe of the detergent device. The washing device can be a drum washing machine, a pulsator washing machine, a washer-dryer or a dishwasher, and other washing devices that need to put detergent to clean items. In actual application, each washing device only needs to lead out an external water pipe and connect it to the water outlet branch of the detergent delivery device in the above-mentioned embodiment. The plug-in bottle mouth 1 in the liquid storage container can be docked with the plug-in interface 1. During the plug-in and unplugging process, since the pipe sleeve 22 is set at the gap 12 after the two are plugged in, it is ensured that the detergent will not overflow to the external detergent dispenser, the ground, etc., and the residual detergent can be collected by the pipe sleeve 22, effectively avoiding the waste of detergent.

[0098] 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 a preferred embodiment as above, 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 also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on 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 connection structure of a detergent dispenser, comprising a plug-in bottle opening (1) and a plug-in connector (2), wherein the plug-in interface (1) has a plug-in slot recessed inwardly, and the plug-in connector (2) extends into the plug-in slot to connect the plug-in bottle opening (1); a gap (12) is provided between the plug-in slot and the top of the plug-in connector (2); the characteristics are: Also includes, The pipe sleeve (22) is sleeved on the plug-in joint (2), and the upper end of the pipe sleeve (22) extends into the gap (12) and contacts the plug-in groove.

2. A connection structure for a detergent dispenser according to claim 1, characterized in that: The sleeve (22) is partially protruding from the plug connector (2), and the length of the protruding portion (222) is greater than the length of the gap (12); The pipe sleeve (22) is made of elastic material.

3. A connection structure for a detergent dispenser according to claim 2, characterized in that: The sleeve (22) comprises: The sealing portion (221) is sleeved on the outside of the plug-in connector (2), and the outer wall of the sealing portion (221) is in contact with the inner wall of the plug-in bottle mouth (1); The protruding portion (222) is connected to the sealing portion (221); when connected, the protruding portion (222) contacts the bottom of the plug-in groove and bends in a direction away from or close to the inner wall of the plug-in bottle mouth (1).

4. A connection structure for a detergent dispenser according to claim 3, characterized in that: The sealing portion (221) is a V-shaped sealing ring, and the periphery of the sealing portion (221) is in contact with the inner wall of the plug-in bottle mouth (1).

5. A connection structure for a detergent dispenser according to claim 4, characterized in that: The outer wall of the plug connector (2) is provided with a plurality of annular installation grooves (21) at intervals along the axial direction thereof, and the sealing portion (221) is arranged in any of the annular installation grooves (21); Preferably, the sealing portion (221) is arranged in an annular mounting groove (21) close to the bottle opening (1); More preferably, a sealing portion (221) is provided in each annular mounting groove (21).

6. A connection structure for a detergent dispenser according to any one of claims 2 to 5, characterized in that: The protruding portion (222) extends upward from the connection with the sealing portion (221), and smoothly transitions away from the axial direction of the protruding portion (222); The maximum opening diameter of the extended end of the protrusion (222) is smaller than or equal to the diameter of the insertion slot.

7. A connection structure for a detergent dispenser according to claim 6, characterized in that: A first annular limiting groove is arranged on the outermost side wall of the plug-in groove, and the size of the notch of the first annular limiting groove is greater than or equal to the thickness of the protruding portion (222).

8. A connection structure for a detergent dispenser according to claims 2-5, characterized in that: The protruding portion (222) extends outward from the connection with the sealing portion (221), and first gradually moves away from and then gradually approaches the axis direction of the protruding portion (222) in a smooth transition; The opening diameter of the extended end of the protrusion (222) is between the diameter of the insertion groove and the diameter of the valve port (112) of the check valve (11).

9. A connection structure for a detergent dispenser according to claim 8, characterized in that: A second annular limiting groove is provided on the side wall between the outermost side wall of the plug-in groove and the valve port (112) of the check valve (11), and the size of the groove of the second annular limiting groove is greater than or equal to the thickness of the protruding portion (222); Preferably, the side wall of the protrusion (222) at a smooth transition point in the axial direction where it first moves away from and then approaches the protrusion (222) contacts the inner wall of the temporary storage cavity to form a seal.

10. A washing device, comprising an external water pipe, characterized in that: A detergent dispenser according to any one of claims 1 to 9 is provided in the detergent dispenser, wherein a water channel for dispensing the detergent is provided, and a water outlet of the water channel is connected to an external water pipe.

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