CN221000237U - External throwing device - Google Patents

Abstract

The utility model discloses an external throwing device, which comprises a shell, wherein the shell is provided with a first opening; the liquid storage box is arranged in the shell and used for storing the additive to be put in; the hollow part in the shell is provided with a first pipe body and a second pipe body which are buckled and spliced to form a water inlet pipeline; at least one of the two pipe bodies is provided with a connecting joint protruding outwards in the radial direction, and the connecting joint is used for communicating the liquid storage cavity with the water inlet pipeline. The utility model has the beneficial effects that: through making water inlet pipe constitute by two body locks to make the attach fitting setting on one of them body, make the attach fitting and each pipe wall integrated injection molding of corresponding body intercommunication department, promoted the structural strength of this intercommunication department, thereby prevented that the intercommunication from being in under the impact of intaking to reveal, the condition such as burst.

Description

External throwing device

Technical Field

The utility model belongs to the field of clothes cleaning, and particularly relates to an external throwing device.

Background

With the continuous improvement of the living standard of people, the washing machine is not only rapidly popularized in various families, but also used in dormitories, apartments and large-scale accommodation factory places, and users can acquire the use right of the collective washing machine in a code scanning or coin inserting mode, so that convenience is brought to the users for washing clothes.

The existing external throwing device generally divides an internal space into a liquid storage cavity and an installation cavity for installing a water inlet pipeline and sucking additives, and as the water inlet pipeline is complex, a complete pipe group cannot be directly formed through integral injection molding, a water inlet pipe for guiding water inlet and a plurality of liquid suction pipelines communicated with the water outlet end of the liquid storage cavity are required to be connected, and specifically, a plurality of openings are formed in the pipe wall of the water inlet pipe, and the liquid outlet end of each liquid suction pipeline is respectively connected with the corresponding opening through cladding or bonding and other modes.

The problems are that: the structural strength of the joint between the water inlet pipe and each liquid pumping flow channel is low, when the external throwing device just starts to feed water, the water hammer effect of the fed water can impact and abrade each joint, and after a period of use, the hidden danger that water leaks at the joints and even the pipeline bursts easily occurs;

in addition, the liquid outlet end of each liquid suction flow channel is also provided with a one-way valve generally, and as the distance between the one-way valve and the connecting part is relatively short, when the liquid suction flow channel is connected with the water inlet pipe, the conditions that the valve plate of the one-way valve is damaged due to heating or the adhesion agent is scattered to cause the adhesion of the membrane and the valve body of the one-way valve and the like easily occur when the cladding temperature is relatively high, so that the normal use of the one-way valve is affected.

The present utility model has been made in view of this.

Disclosure of utility model

The utility model aims to solve the technical problem of overcoming the defects of the prior art, and provides an external throwing device, wherein a water inlet pipe is formed by buckling two pipe bodies, a liquid suction channel communicated with the water inlet pipe is integrated in one pipe body, the liquid suction channel and the pipe bodies are integrally injection molded, and the structural strength of the communicating part of the liquid suction channel and a water mixing branch is improved, so that the problems that the communicating part is easy to leak, even the pipeline bursts and the like are solved.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: an external throwing device comprises a shell; the liquid storage box is arranged in the shell and used for storing the additive to be put in; the hollow part in the shell is provided with a first pipe body and a second pipe body which are buckled and spliced to form a water inlet pipeline; at least one of the two pipe bodies is provided with a connecting joint protruding outwards in the radial direction, and the connecting joint is used for communicating the liquid storage cavity with the water inlet pipeline.

Further, the first pipe body and the second pipe body are respectively provided with grooves, and the groove openings of the two pipe bodies are oppositely arranged; the peripheries of the groove openings of the two pipe bodies are provided with radially protruding joint surfaces which are oppositely jointed; the grooves are provided with communication ports which are connected with the connecting joints in a one-to-one correspondence manner.

Further, the two pipe bodies are respectively long-strip grooves to form a straight pipe type water inlet pipeline; each communication port is respectively arranged along the axis of the strip-shaped groove.

Further, two ends of the water inlet pipeline are respectively communicated with a water supply joint and a water outlet joint; concave structures which are concave inwards are respectively arranged on the inner side surfaces of the two ends of each groove, and the width of each concave structure is larger than the groove width of each groove; the two opposite concave structures are buckled to form a plug-in section of the water inlet pipeline, and the water supply connector and the water outlet connector are respectively and hermetically plugged in the plug-in section.

Further, each connecting port is respectively arranged at the bottom of the groove.

Further, the liquid outlet ends of the connecting joints are respectively provided with one-way valves which are in one-way conduction; the one-way valve is arranged in the water inlet pipeline through the connecting port.

Further, the two grooves are arc grooves respectively, and the two pipes are connected mutually.

Further, the liquid storage cavity and the first pipe body are respectively positioned above and below the second pipe body; the second pipe body is internally provided with a liquid pumping flow channel, and a liquid inlet end and a liquid outlet end of the liquid pumping flow channel are respectively communicated with the connecting joint and the liquid inlet flow channel.

Further, the pumping channel at least comprises a second channel section extending from the lower part of the liquid outlet end of the connecting joint to the upper part of the communication port; the second pipe body comprises an upper pipe section and a lower pipe section which are arranged up and down, and the two pipe sections are buckled and spliced to form a second flow passage section.

Further, the opposite surfaces of the upper pipe section and the lower pipe section are arranged at a certain distance, and are respectively provided with a guide rib extending in opposite directions, guide grooves for guiding the additive are respectively integrated on the upper pipe section and the lower pipe section, and the groove tops of the guide grooves of the upper pipe section and the lower pipe section are buckled and connected to form a second flow passage section; each connecting joint is respectively communicated with the diversion trench of the upper pipe section; and each communication port formed on the profiling is respectively communicated with the corresponding diversion trench of the lower pipe section.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects: the water inlet pipeline is formed by buckling two pipe bodies, the connecting joint is arranged on one of the pipe bodies, and the connecting joint and each pipe wall of the corresponding pipe body communication part are integrally injection molded, so that the structural strength of the communication part is improved, and the conditions of leakage, burst and the like of the communication part under the impact of water inlet are prevented;

In addition, through setting up the intercommunication mouth at the tank bottom of recess, make the periphery of intercommunication mouth set up with the hookup location interval certain distance of two body respectively, promoted the structural strength of pipe wall around the intercommunication mouth, can also effectively prevent that the condition of damaging the check valve from taking place when the body melts and coats or bond, reduced the bad piece rate of inlet channel, promoted production machining efficiency.

Meanwhile, the utility model has simple structure and obvious effect, and is suitable for popularization and use.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of a water inlet pipeline structure according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of an inlet pipe according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with an embodiment of the present utility model;

FIG. 4 is a B-B cross-sectional view of FIG. 2 in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic illustration of an embodiment of the present utility model with an upper pipe section removed from the water intake pipeline.

In the figure: 3. a groove; 302. a connection joint; 310. a first tube body; 320. a second tube body; 321. a lower pipe section; 322. an upper pipe section; 3221. a communication protrusion; 340. a diversion trench; 350. sealing ribs; 360. a water inlet pipeline; 370. a liquid pumping flow channel; 371. a first flow path section; 372. a second flow path section; 3721. a first section; 3722. a second section; 3723. a third section; 3724. a fourth section; 373. a third flow path segment; 4. a water supply joint; 5. a water outlet joint; 6. and (5) a throwing component.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

1-5, An external delivery device is described, comprising, a housing; the liquid storage box is arranged in the shell and used for storing the additive to be put in; the first pipe body 310 and the second pipe body 320 are arranged in the hollow part of the shell, and the two pipe bodies are buckled and spliced to form a water inlet pipeline 360; at least one of the two pipe bodies is provided with a connecting joint 302 protruding outwards in the radial direction, and the connecting joint 302 is used for communicating the liquid storage cavity with the water inlet pipeline 360.

Through the arrangement, the water inlet pipeline 360 is formed by buckling two pipe bodies, the connecting joint 302 is arranged on one of the pipe bodies, and the connecting joint 302 and each pipe wall of the corresponding pipe body communication part are integrally injection molded, so that the structural strength of the communication part is improved, and the conditions of leakage, burst and the like under the water inlet impact of the communication part are prevented.

The additive is a liquid which is commonly used for treating clothes and/or reducing the hardness of water inflow, such as a detergent, and/or a softener, and/or a disinfectant, and/or a bleaching agent, and/or a water softener.

In the embodiment of the utility model, the first pipe body 310 and the second pipe body 320 are respectively provided with a groove 3, and the grooves 3 and the notches of the two pipe bodies are oppositely arranged; the peripheries of the notches of the grooves 3 of the two pipe bodies are provided with radially protruding joint surfaces which are oppositely jointed; the grooves 3 are provided with communication ports which are connected with the connecting joints 302 in a one-to-one correspondence.

Through the above-mentioned setting to when first body 310 and second body 320 lock, when the clearance that forms between 3 through two recesses constitutes the water mixing branch road, laminating through the faying face is connected, increased the connecting area, promoted the structural strength of hookup location, thereby prevent that the condition of revealing from taking place for the hookup location of two bodies, guaranteed the stability of external throwing in the device operation.

In the embodiment of the utility model, the tops of the two grooves 3 are respectively provided with flanges extending outwards in the radial direction, and the opposite surfaces of the flanges form the joint surface.

In the embodiment of the utility model, the two pipe bodies are respectively long-strip-shaped grooves 3 to form a straight pipe type water inlet pipeline 360; each communication port is respectively arranged along the axis of the strip-shaped groove 3; for the pipeline structure of curved pipe formula, the pipeline resistance of straight pipe formula is lower, can guarantee to intake and smoothly flow in inlet tube 360, simultaneously, the pipe wall pressure of intake to each position of inlet tube 360 is less, guarantees that the seam of two recess 3 lock connections can not take place the condition of revealing.

In the embodiment of the utility model, two ends of the water inlet pipeline 360 are respectively communicated with a water supply joint 4 and a water outlet joint 5; concave structures which are concave inwards are respectively arranged on the inner side surfaces of the two ends of each groove 3, and the width of each concave structure is larger than the groove width of each groove 3; the two opposite concave structures are buckled to form an inserting section of the water inlet pipeline 360, and the water supply connector 4 and the water outlet connector 5 are respectively inserted in the inserting section in a sealing way; the structure with the further recess is arranged to form a larger opening, so that the water supply connector 4 and the water outlet connector 5 are convenient to install in a plugging manner.

In the embodiment of the present utility model, a water supply pipe is formed inside the water supply joint 4 for introducing external inflow water into the water inlet pipe 360; a water outlet pipeline is formed in the water outlet joint 5 and is used for discharging the mixed solution of the water inlet and the additive in the water inlet pipeline 360; the liquid inlet end of the water supply joint 4 and/or the liquid outlet end of the water outlet joint 5 are respectively provided with a bending pipe section which is bent and extended in the direction away from the axis of the water inlet pipeline 360 and used for changing the flow direction of water inlet; each bending pipe section is respectively arranged at a certain distance from the liquid outlet end of the corresponding water supply joint 4 or the liquid inlet end of the water outlet joint 5.

In the embodiment of the utility model, the liquid inlet end of the water supply joint 4 is connected with a tap water pipe network; and/or with a secondary water tank for holding secondary water; the secondary water includes water that can be directly reused, such as drain water of the last rinsing process of the washing machine, and/or collected bath water.

In the embodiment of the utility model, the liquid outlet end of the water outlet joint 5 is communicated with the water inlet pipe of the washing machine.

In the embodiment of the utility model, the connectors are respectively arranged at the bottom of the groove 3.

Through the arrangement, each position of the periphery of each connecting port is respectively separated from the spliced position of the two pipe bodies by a certain distance, so that the communicating part of the connecting joint 302 and the groove 3 has stronger structural strength, and the leakage of a passage between the connecting joint 302 and the water inlet pipeline 360 at the connecting port is prevented.

In the embodiment of the utility model, the liquid outlet end of each connecting joint 302 is respectively provided with a one-way valve which is in one-way conduction; the check valve is mounted in the water inlet pipe 360 by a connection port.

Through the arrangement, the connecting positions of the first pipe body 310 and the second pipe body 320 are spaced from the outer periphery of the connecting port by a certain distance, so that the condition that the check valve is damaged during cladding or bonding of the pipeline is effectively prevented, the bad part rate of the water inlet pipeline is reduced, and the production and processing efficiency is improved; meanwhile, when the check valve is installed, the check valve can be installed in the connecting port through the notch of the groove 3, and then the two pipe bodies are buckled and connected, so that the installation and the fixation of the single valve are facilitated.

In the embodiment of the utility model, the two grooves 3 are arc grooves respectively, and the two pipe bodies are connected; compared with the water mixing branch with a rectangular section, the water mixing branch with a round section has no corner in the waterway, so that undissolved additive is prevented from remaining at the corner.

In the embodiment of the present utility model, the liquid storage cavity and the first pipe body 310 are respectively located above and below the second pipe body 320; the second pipe body 320 is internally provided with an extraction flow channel 370, and a liquid inlet end and a liquid outlet end of the extraction flow channel 370 are respectively communicated with the connecting joint 302 and the liquid inlet flow channel.

In the embodiment of the present utility model, the liquid-pumping channel 370 at least comprises a second channel section 372 extending from the lower side of the liquid outlet end of the connection joint 302 to the upper side of the communication port; the second pipe body 320 comprises an upper pipe section 322 and a lower pipe section 321 which are arranged up and down, and the two pipe sections are buckled and spliced to form a second flow passage section 372.

In the embodiment of the utility model, the opposite surfaces of the upper pipe section 322 and the lower pipe section 321 are arranged at a certain distance, and are respectively provided with opposite extending flow guide ribs, flow guide grooves 340 for guiding the additive are respectively integrated on the upper pipe section 322 and the lower pipe section 321, and the flow guide grooves 340 of the upper pipe section 322 and the lower pipe section 321 are respectively connected with the groove tops to form a second flow channel section 372; each connecting joint 302 is respectively communicated with a corresponding diversion trench 340 of the upper pipe section 322; and each communication port formed on the profiling is respectively communicated with a corresponding diversion trench 340 of the lower pipe section 321.

In the embodiment of the utility model, the second pipe body 320 is arranged above the first pipe body 310, the lower surface of the second pipe body 320 is attached to the upper surface of the first pipe body 310, the opposite surfaces of the two pipe bodies are respectively provided with a pressing type which is concave inwards, and the cross sections of the two pressing types are respectively arc-shaped; the connecting joints 302 are arranged at the top of the second pipe body 320, and a plurality of connecting ports are arranged at the profiling bottom of the second pipe body 320, and each connecting port is communicated with each connecting joint 302 in a one-to-one correspondence mode.

In the embodiment of the present utility model, the liquid storage cavity and the first pipe body 310 are respectively located above and below the second pipe body 320; the second pipe body 320 is internally provided with an extraction flow channel 370, and a liquid inlet end and a liquid outlet end of the extraction flow channel 370 are respectively communicated with the connecting joint 302 and the liquid inlet flow channel.

In the practical use process, in order to reduce the overall volume of the external throwing device, the length of the water inlet pipeline 360 is reasonably shortened, the interval between the connectors is usually smaller, and the interval is usually smaller than the width or length of the corresponding direction of the liquid storage cavities, so that the butt joints of the liquid storage cavities arranged in the external throwing device, which are communicated with the liquid outlets, are difficult to be located right above the corresponding connectors, and then the corresponding flow channels are needed to be arranged in the second pipe body 320, so that the additive is guided into the water inlet pipeline 360.

In the embodiment of the present utility model, the liquid-pumping channel 370 at least comprises a second channel section 372 extending from the lower side of the liquid outlet end of the connection joint 302 to the upper side of the communication port; the second pipe body 320 comprises an upper pipe section 322 and a lower pipe section 321 which are arranged up and down, and the two pipe sections are buckled and spliced to form a second flow passage section 372.

Through the arrangement, the second pipe body 320 is divided into two pipe sections along the upper and lower directions, the second flow channel section 372 for guiding the additive is formed by buckling the two pipe sections, the second flow channel section 372 is respectively arranged on the lower half pipe wall and the upper half pipe wall of the second flow channel section 372 in communication with the connecting port and the connecting joint 302, so that the two communication sections are respectively integrally formed in the lower pipe section 321 and the upper pipe section 322, and the condition that the pipeline of the pumping channel 370 leaks is effectively prevented while the smooth guiding of the additive is ensured.

In the embodiment of the utility model, the opposite surfaces of the upper pipe section 322 and the lower pipe section 321 are arranged at a certain distance, and are respectively provided with opposite extending flow guide ribs, flow guide grooves 340 for guiding the additive are respectively integrated on the upper pipe section 322 and the lower pipe section 321, and the flow guide grooves 340 of the upper pipe section 322 and the lower pipe section 321 are respectively connected with the groove tops to form a second flow channel section 372; each connecting joint 302 is respectively communicated with a corresponding diversion trench 340 of the upper pipe section 322; and each communication port formed on the profiling is respectively communicated with a corresponding diversion trench 340 of the lower pipe section 321.

Through the arrangement, as each second flow channel section 372 is required to be bent according to actual conditions to avoid other flows, the flow guide grooves 340 are integrated through the convex surface flow guide ribs, and the two opposite flow guide grooves 340 are buckled to form the complete second flow channel section 372.

In the embodiment of the utility model, the peripheries of the opposite surfaces of the two pipe sections are respectively provided with sealing ribs 350 which extend in opposite directions, and the extending ends of the two sealing ribs 350 are connected in a sealing way; by arranging the sealing rib 350, the gap between the two pipe sections is shielded, so that the appearance of the second pipe body 320 is more regular, and more importantly, the sealing rib 350 can protect the flow guide rib while preventing dust from entering the gap between the two pipe sections, so that hard objects are prevented from contacting the flow guide rib through the gap, for example, when a worker installs or removes an external throwing device, the tool carelessly pierces the flow guide rib, and the pumping channel 370 cannot work normally.

In the embodiment of the utility model, the pumping channel 370 further comprises a first channel segment 371 communicated with the liquid outlet end of the connecting joint 302 and a third channel segment 373 communicated with the water inlet pipeline, the liquid outlet end of the first channel segment 371 is communicated with the liquid inlet end of the second channel segment 372, and the liquid inlet end of the third channel segment 373 is communicated with the liquid outlet end of the second channel segment 372; to form the complete extraction flow path 370.

In an embodiment of the present utility model, a one-way valve is mounted within the third channel section 373 of the extraction channel 370.

In an embodiment of the utility model, a dosing assembly 6 is also included in series with the second flow path segment 372 for powering the additive in the pump flow path 370.

In the embodiment of the present utility model, the second flow path 372 includes at least a first portion 3721 and a fourth portion 3724 that are connected end to end, and a liquid outlet end of the first portion 3721 and a liquid inlet end of the fourth portion 3724 are respectively communicated with an inlet and an outlet of the delivery assembly 6; the liquid inlet end of the first portion 3721 and the liquid outlet end of the fourth portion 3724 are the liquid inlet end and the liquid outlet end of the second flow path segment 372, respectively.

In the embodiment of the present utility model, the delivery assembly 6 is disposed outside the upper pipe section 322, the second flow channel section 372 further includes a second portion 3722 and a third portion 3723 that are respectively bent and extended from the liquid outlet end of the first portion 3721 and the liquid inlet end of the fourth portion 3724 to the outside of the second pipe body 320, and the liquid outlet end of the second portion 3722 and the liquid inlet end of the third portion 3723 are respectively butted with the inlet and the outlet of the delivery assembly 6.

Through the arrangement, through forming second portion 3722 and third portion 3723 in last pipeline section 322, when guaranteeing that the subassembly 6 of throwing in that sets up the outside of last pipeline section 322 can be connected in series on second runner section 372, second portion 3722 and third portion 3723 are linked together with the guiding gutter 340 of last pipeline section 322 respectively, make the connection turning integrated into one piece between each portion, promoted the structural strength of this hookup location, prevented that the condition that the runner was revealed appears in pumping channel 370 in this position.

In the embodiment of the utility model, the throwing component 6 and the liquid storage cavity are arranged on the same side of the upper pipe section 322, the upper pipe section 322 is provided with a communication protrusion 3221 protruding out of the pipe wall on the side, and the throwing component 6 is arranged on the communication protrusion 3221; the second and third portions 3722 and 3723 extend into the communication protrusions 3221, respectively, and communicate with the inlet and outlet of the dosing assembly 6, respectively.

In the embodiment of the present utility model, the communication protrusion 3221 is provided with a pair of interfaces in one-to-one correspondence with the inlet and the outlet of the delivery assembly 6, and the second portion 3722 and the third portion 3723 are respectively communicated with the corresponding interfaces.

In the embodiment of the present utility model, each pair of interfaces is respectively disposed on a side wall of the communication protrusion 3221, and extension ends of each second portion 3722 and each third portion 3723 respectively extend along a protrusion direction of the communication protrusion 3221, and are bent and communicated to the corresponding pair of interfaces; the throwing component 6 is arranged on one side of the communication protrusion 3221, so that the occupation of the throwing component 6 to the space, away from the corresponding surface direction, of the second part 3722 is reduced, the internal components of the external throwing device are placed more compactly, and the overall volume of the external throwing device is reduced.

In the embodiment of the utility model, the delivery assembly 6 is a pump body.

In the specific embodiment of the present utility model, two liquid storage cavities are provided in the delivery device, two liquid pumping channels 370 and two delivery assemblies 6 are correspondingly formed in the second pipe body 320, a communication protrusion 3221 is provided on the upper pipe section 322, the two delivery assemblies 6 are separately provided at two opposite sides of the communication protrusion 3221, and the extension sections of the second portion 3722 and the third portion 3723 of the two liquid pumping channels 370 extend along the protruding direction of the communication protrusion 3221 and are communicated with the inlet and the outlet of the corresponding delivery assembly 6; two delivery pumps are respectively arranged on the same communication protrusion 3221, so that the complexity of the second pipe body 320 is reduced while the normal operation of each liquid suction flow channel 370 is ensured.

In the embodiment of the utility model, the surface of the lower pipe section 321, which is close to the upper pipe section 322, is provided with positioning columns on the surface of the convex part, the upper pipe section 322 is respectively provided with positioning holes or positioning grooves at corresponding positions, and each positioning column is respectively inserted into the corresponding positioning hole or positioning groove.

In the embodiment of the utility model, at least one liquid collecting groove with an upward opening is arranged in the shell, a liquid storage cavity for containing additives is arranged in the shell, liquid suction flow passages 370 corresponding to the liquid collecting grooves one by one are arranged in the water inlet pipeline 360, and liquid outlets of the liquid collecting grooves are respectively communicated with liquid inlet ends of the liquid suction flow passages 370.

In the embodiment of the utility model, an installation cavity is arranged in the shell, at least one liquid storage box is arranged in the installation cavity in a removable way, a liquid storage cavity for containing additives is arranged in the liquid storage box, liquid suction channels 370 corresponding to the liquid storage boxes one by one are arranged in the water inlet pipeline 360, and liquid outlets of the liquid storage boxes are respectively connected with the connecting connectors 302 in a pluggable way and are communicated with liquid inlet ends of the corresponding liquid suction channels 370.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by equivalent embodiments within the scope of the technical proposal of the present utility model without departing from the scope of the technical proposal of the present utility model.

Claims (10)

1. An external throwing device comprises a main body, a main body and a main body,

A housing;

the liquid storage box is arranged in the shell and used for storing the additive to be put in;

The water inlet pipeline is characterized in that a first pipe body and a second pipe body are arranged in the hollow part of the shell, and the two pipe bodies are buckled and spliced to form the water inlet pipeline;

At least one of the two pipe bodies is provided with a connecting joint protruding outwards in the radial direction, and the connecting joint is used for communicating the liquid storage cavity with the water inlet pipeline.

2. The external throwing device according to claim 1, wherein the first pipe body and the second pipe body are respectively grooves, and groove openings of the two pipe bodies are arranged oppositely;

The peripheries of the groove openings of the two pipe bodies are provided with radially protruding joint surfaces which are oppositely jointed;

the grooves are provided with communication ports which are connected with the connecting joints in a one-to-one correspondence manner.

3. The external throwing device according to claim 2, wherein the two pipe bodies are respectively long-strip-shaped grooves to form a straight pipe type water inlet pipeline;

each communication port is respectively arranged along the axis of the strip-shaped groove.

4. An external throwing device according to claim 3, wherein two ends of the water inlet pipeline are respectively communicated with a water supply joint and a water outlet joint;

Concave structures which are concave inwards are respectively arranged on the inner side surfaces of the two ends of each groove, and the width of each concave structure is larger than the groove width of each groove; the two opposite concave structures are buckled to form a plug-in section of the water inlet pipeline, and the water supply connector and the water outlet connector are respectively and hermetically plugged in the plug-in section.

5. The external throwing device according to claim 2, wherein the connecting ports are respectively arranged at the bottom of the groove.

6. The external throwing device according to claim 5, wherein the liquid outlet end of each connecting joint is respectively provided with a one-way valve which is in one-way conduction;

the one-way valve is arranged in the water inlet pipeline through the connecting port.

7. An external dispensing device according to claim 2, wherein the two recesses are circular arc grooves, respectively, and the two tubes are connected.

8. An external dispensing device according to any one of claims 1 to 7 wherein the reservoir and the first tube are located above and below the second tube, respectively;

the second pipe body is internally provided with a liquid pumping flow channel, and a liquid inlet end and a liquid outlet end of the liquid pumping flow channel are respectively communicated with the connecting joint and the liquid inlet flow channel.

9. The external placement device according to claim 8, wherein the pumping channel comprises at least a second channel section extending from below the liquid outlet end of the connection joint to above the communication port;

The second pipe body comprises an upper pipe section and a lower pipe section which are arranged up and down, and the two pipe sections are buckled and spliced to form a second flow passage section.

10. The external throwing device according to claim 9, wherein the opposite surfaces of the upper pipe section and the lower pipe section are arranged at a certain distance, and are respectively provided with a guide rib extending in opposite directions, the upper pipe section and the lower pipe section are respectively integrated with a guide groove for guiding the additive, and the groove tops of the guide grooves of the upper pipe section and the lower pipe section are buckled and connected to form a second flow passage section;

each connecting joint is respectively communicated with the diversion trench of the upper pipe section; and each communication port formed on the profiling is respectively communicated with the corresponding diversion trench of the lower pipe section.