CN114962743A - Miniature valve without valve seat key and water spraying brush - Google Patents

Abstract

The invention discloses a micro valve without a valve seat key and a water spraying brush, belonging to the field of valves; the method comprises the following steps: a main body and a push switch; an axial through hole is formed in the middle inside the main body, a hose is further arranged inside the axial through hole, two ends of the hose extend out of two ends of the axial through hole, and two ends of the hose are respectively communicated with the outlet end and the inlet end; the pressing switch is sleeved and extruded to abut against the hose to block communication between the inlet end and the outlet end, fluid enters the hose through the inlet end and flows out of the outlet end, the axial through hole maintains a fixed space of the hose, and the hose is conveniently pressed by the pressing switch to adjust opening, closing and size of water flow; the water spraying brush comprises a brush head, a water injection pipeline is arranged inside the brush head, a water injection port is arranged at the outer end of the brush head and communicated with the water injection port, the water injection port is detachably clamped with a hose extending out of the outlet end, and the water spraying brush can be conveniently replaced by cleaning spray heads in different shapes for targeted washing, and is convenient and practical.

Description

Miniature valve without valve seat key and water spraying brush

Technical Field

The invention relates to the field of valves, in particular to a miniature valve without a valve seat key and a water spraying brush.

Background

In the traditional valve, the circulation control of fluid or gas is generally realized in the form of a valve seat, and in order to prevent the fluid from leaking outside, the valve generally adopts a sealing filler or sealing diaphragm measure for an operating part; the existing technology for requiring the valve seat has the following defects: 1) abrasion between the valve seat and the valve core and abrasion between the valve core and the operating part cannot be avoided; 2) in order to prevent external leakage, the valve generally adopts a sealing filler or sealing diaphragm measure for an operating part, so that the operating switch has large resistance and inflexible braking; 3) the existing valve core structure can not meet the requirement that some fluid needs to be controlled quickly and flexibly at will in real time.

Meanwhile, water and electricity are often needed to help clean various objects in daily life; for example, the effect is improved by adding an electric function, the involuntary displacement is easy to generate, and if the use method is not well mastered, the gum is easy to be damaged; for example, washing and brushing narrow gaps, various small-caliber vessels, cups, bowls and various living articles generally need a plurality of steps of washing, brushing and brushing, and meanwhile, various washing and brushing articles need to be replaced, so that the process is complicated and inconvenient.

The above prior art has the following disadvantages: 1) the washing device is not easy to control when washing articles; 2) the flushing pressure is not easy to adjust at any time during washing; 3) often only a single cleaning tool can be used for a single cleaning operation, and different brush heads are not compatible to be replaced to deal with different brushing steps.

Disclosure of Invention

In order to achieve the above object, one of the objects of the present invention is to provide a new technical solution: the impact force of the water outlet of the civil water appliance is improved on the premise of not using electricity, and meanwhile, the civil water appliance can be operated and controlled by one hand, so that people feel comfortable and relieved to use the household water appliance; and the price is low, and the main body can be compatible and replaceable.

The technical scheme for solving the technical problems is as follows:

a main body and a push switch;

an axial through hole is formed in the middle of the inside of the main body, a hose is further arranged in the axial through hole, two ends of the hose extend out of two ends of the axial through hole, and two ends of the hose are respectively communicated with an outlet end and an inlet end;

the push switch is sleeved and pressed against the hose to block communication between the inlet end and the outlet end, and the push switch is pressed to adjust the passing area in the hose to change the size of fluid circulation between the inlet end and the outlet end.

The beneficial effects of the invention are: external fluid enters the hose through the inlet end and flows out of the outlet end through the hose, the hose is placed in the axial through hole, the hose supporting performance is improved, the hose can be conveniently pressed by the press switch to adjust the opening and closing of the fluid and the flow velocity, the whole process controls the passing of the fluid in the hose through the press switch, and the hose can be operated and controlled by only one hand.

On the basis of the technical scheme, the invention can be further improved as follows:

further, the push switch includes: the upper end cavity, the key body, the spring, the lower end cavity, the switch soft cover and the radial through hole are formed in the upper end cavity; the upper end cavity is positioned at the upper end of the main body and is connected with the outer end through the switch soft cover, the lower end cavity is positioned at the lower end of the main body, the spring is installed at the bottom end of the lower end cavity, the upper end cavity and the lower end cavity are communicated through at least one radial through hole, the radial through holes and the axial through holes are vertically distributed in a staggered manner at intervals, the key body is installed in a space formed by the upper end cavity, the lower end cavity and the radial through holes, and the key body is further connected with the spring in the lower end cavity; the switch soft cover covers the key body.

The beneficial effect of adopting the further scheme is that: the spring provides upward spring force for the key body, the key body is propped against and extruded through the spring in a normal state and seals fluid in the hose to pass through, meanwhile, the spring is compressed through pressing of the key body so as to control the circulation in the hose, and the arrangement of the upper end cavity, the lower end cavity and the radial through hole around the hose ensures that the hose part in the press switch is only influenced by the key body in the middle position; when in use, the inner wall of the hose is separated and the fluid passes through by pressing the external switch soft cover, and the flow rate are controlled by the sensitivity of fingers. Because the valve seat and the valve core part occupying a large space are eliminated, the fluid is controlled in the closed hose, and the switch part is hidden in the switch soft cover and the main body, the micro valve which has the advantages of no internal leakage and no external leakage, is closed, has no abrasion, is sensitive to operation, and has a smooth and easily cleaned appearance is realized.

Further, the button body includes the switch upper part of the body, the switch lower part of the body, floodgate head and connecting rod, the switch upper part of the body is located in the upper end cavity, the switch lower part of the body is located in the lower extreme cavity and arrange in the top of spring, the connecting rod is located in the radial through-hole, the switch upper part of the body with the switch lower part of the body passes through the connecting rod is connected, the floodgate head is installed the top intermediate position of the switch lower part of the body, it has the through-hole to connect to open in the middle of lower extreme cavity top the outer wall of hose, the floodgate head passes the through-hole and support and extrude the hose under the effect of spring.

The beneficial effect of adopting the further scheme is that: the switch upper body is connected with the switch lower body through the connecting rod, so that the force conduction is ensured, the switch upper body is pushed by pressing down the external switch soft cover so as to push the switch lower body, and finally the downward movement of the gate head is realized, so that the circulation of fluid in the hose is controlled; the brake head supports against the hose through the through hole, the extrusion strength of the hose is controlled along with the movement of the upper switch body and the lower switch body to realize the control of the fluid, the whole process is easy to control and operate, and the flow rate of the fluid is controlled by only small force and distance.

Further, the upper end of the gate head is provided with a protruding structure, and the protruding structure presses against the hose under the elastic force of the spring to block the communication between the inlet end and the outlet end.

The beneficial effect of adopting the further scheme is that: the floodgate head upper end is protruding structure convenience and is closed the interior fluid's of hose through in order closing the hose extrusion, and the floodgate head realizes closing the hose under the spring action normality, can enlarge the space in the hose when down pressing, and then improves the circulation.

Further, the portion of the hose protruding in the inlet end is flared; the extension of the hose at the outlet end is coaxially distributed with the outlet end.

The beneficial effect of adopting the above further scheme is: the hose is loudspeaker form in the part of entrance point, and when fluid entered from the entrance point, under the fluid action, the trend change is faced towards to the hose of loudspeaker form for loudspeaker form obviously enlarges, is favorable to fluid to flow into the hose from the entrance point, also is favorable to the hose outer wall to block this end axial through-hole and reaches better leakproofness.

Furthermore, the micro valve without the valve seat key further comprises an elastic telescopic water pipe, and the elastic telescopic water pipe is communicated with the inlet end and an external water source.

The beneficial effect of adopting the further scheme is that: the elastic telescopic water pipe is connected with the inlet end, so that the elongation of the whole micro valve without the valve seat key can be shortened in the using process, and the use convenience is improved.

Further, the hose is made by the silica gel material.

The beneficial effect of adopting the further scheme is that: the silica gel material has excellent chemical performance and physical performance, especially no toxicity, high temperature resistance, acid and alkali resistance, etc. and is especially suitable for forming one new kind of valve throat with the valve head.

The invention also provides a water spraying brush, which comprises a valve seat-free button micro valve and a brush head, wherein a water injection pipeline is arranged inside the brush head, a water injection interface is arranged at the outer end of the brush head, the water injection pipeline is communicated with the water injection interface, and the water injection interface is detachably clamped with the hose extending out of the outlet end.

The beneficial effect of adopting the further scheme is that: the joint can be dismantled with the hose to the water injection interface of brush head, after hose in the main part lets in water, can fill high water pressure in the inside water injection pipeline of brush head, water pressure can make the hose portion that the exit end stretches out expand, and realize the inseparable joint with the water injection interface, ensure that the rivers can not follow the water injection interface and flow, the stable connection of brush head and main part has also been ensured, can not become flexible, when the brush head is traded to needs, loosen the button body, the back of passing through of closing rivers, water injection pipeline water pressure in the brush head unloads, the expanded hose portion resumes, become not hard up joint with the water injection interface, conveniently change the brush head this moment.

Further, the water injection interface is the ring form, the inner wall of water injection interface with the mutual joint cooperation of outer wall of hose.

The beneficial effect of adopting the above further scheme is: the hose at the outlet end of the main body is clamped by being inserted into the water injection interface, namely the water injection interface is sleeved on the hose to be clamped, so that the hose can expand under water pressure to be clamped with the water injection interface in a sealing manner, the stable connection of the brush head and the main body is ensured, and the brush head cannot loosen.

Furthermore, at least one connecting pipe taper hole is arranged in the water injection pipeline, the connecting pipe taper hole is communicated with the outside through a brush head small hole, and the connecting pipe taper hole is of a conical structure; the big end faces the inside of the water injection pipeline, the small end is communicated with the outside through the small hole of the brush head, the cross section of the small hole of the brush head is larger than that of the small end of the taper hole of the connecting pipe, and bristles are distributed on the outer side of the brush head.

The beneficial effect of adopting the further scheme is that: the connecting pipe taper hole is communicated with the outside through the small hole of the brush head, water flow can conveniently flow out from the connecting pipe taper hole through the small hole of the brush head, the aperture of the small hole of the brush head is larger than the aperture of the outlet of the connecting pipe taper hole, liquid flowing out of the connecting pipe taper hole is not influenced by the small hole of the brush head, the total sectional area of the outflow port of the connecting pipe taper hole of the tapered structure is smaller than the sectional area with the minimum flowing section in the valve, the flow rate of the water flow flowing out under the condition is faster, the water pressure is stronger, and the cleaning of objects can be completed more conveniently.

Drawings

FIG. 1 is a cross-sectional view of a valve having a push button with no valve seat according to the present invention;

FIG. 2 is a sectional view showing the structure of a push switch according to the present invention;

FIG. 3 is a schematic view of a structure of a microvalve without a valve seat and a water spray brush according to the present invention;

FIG. 4 is a sectional view showing the structure of a water spray brush according to the present invention;

figure 5 is a cross-sectional view of the junction of the body and head of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a main body; 11. a hose; 12. an axial through hole; 13. an outlet end; 14. an inlet end; 2. a brush head; 21. a water injection pipeline; 22. connecting a pipe taper hole; 23. a brush head aperture; 24. brushing; 25. a water injection interface; 3. a push switch; 31. an upper end cavity; 32. a key body; 321. a switch upper body; 322. a switch lower body; 323. a gate head; 324. a connecting rod; 33. a spring; 34. a lower end cavity; 35. opening and closing the soft cover; 36. a radial through hole; 4. elastic telescopic water pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings, which are not intended to limit the scope of the present invention.

Example 1: as shown in fig. 1-2, an embodiment of a microvalve without a valve seat button disclosed in the present invention comprises:

a main body 1 and a push switch 3;

an axial through hole 12 is formed in the middle of the inside of the main body 1, a hose 11 is further arranged in the axial through hole 12, two ends of the hose 11 extend out of two ends of the axial through hole 12, and two ends of the hose 11 are respectively communicated with an outlet end 13 and an inlet end 14;

the push switch 3 is fitted and pressed against the hose 11 to block the communication between the inlet end 14 and the outlet end 13, and the push switch 3 changes the magnitude of the fluid communication between the inlet end 14 and the outlet end 13 by being pushed to adjust the passing area in the hose 11.

Specifically, the hose 11 is disposed in the axial through hole 12, which ensures that the hose 11 can be squeezed and closed by the push switch 3, and further blocks the internal circulation, two ends of the hose 11 are respectively communicated with the outlet end 13 and the inlet end 14 to ensure that fluid enters from the inlet end 14 and then flows out from the outlet end 13 through the hose 11, the push switch 3 is installed in the main body 1 and sleeved on the hose 11, and the flow rate of water flow in the hose 11 is adjusted by squeezing the hose 11.

It should be understood that place hose 11 in the axial through-hole 12, ensure hose 11 verticality and stable pressability, press switch 3 cover is established and is extruded and support hose 11 for realize the circulation controllability of the fluid in hose 11, whole process controls the fluidic passage in hose 11 through press switch 3, only needs the one hand can operation control, whole device simple structure, convenient and practical, the low price.

Preferably, the hose 11 extends into the inner space of the outlet end 13 and the inlet end 14, wherein the outer walls of the two ends of the hose 11 are hermetically connected with the outlet end 13 and the inlet end 14.

On the basis of example 1, example 2: as shown in fig. 2, the push switch 3 includes: the key comprises an upper end cavity 31, a key body 32, a spring 33, a lower end cavity 34, a soft switch cover 35 and a radial through hole 36; the upper end cavity 31 is positioned at the upper end of the main body 1 and is connected with the outer end through a soft switch cover 35, the lower end cavity 34 is positioned at the lower end of the main body 1, the spring 33 is installed at the bottom end of the lower end cavity 34, the upper end cavity 31 and the lower end cavity 34 are communicated through at least one radial through hole 36, the radial through holes 36 and the axial through hole 12 are vertically distributed in a staggered mode at intervals, the key body 32 is installed in a space formed by the upper end cavity 31, the lower end cavity 34 and the radial through holes 36, and the key body 32 is further connected with the spring 33 in the lower end cavity 34; the soft switch cover 35 covers the key body 32.

Specifically, the key body 32 is installed in a space formed by the upper end cavity 31, the lower end cavity 34 and the radial through hole 36, the soft switch cover 35 covers the upper end of the key body 32, and the spring 33 is installed at the bottom end of the lower end cavity 34, that is, the spring 33 is located at the lower end of the key body 32 and provides upward elastic force for the key body 32; the radial through holes 36 and the axial through holes 12 are vertically distributed in a staggered manner at intervals, so that the radial through holes 36 and the hoses 11 are distributed in a staggered manner, and the control independence of the key body 32 on the hoses 11 is ensured.

It should be understood that the spring 33 provides an upward spring force for the key body 32, the key body 32 closes the water flow in the hose 11 under normal conditions, meanwhile, the water flow in the hose 11 is controlled by pressing the key body 32, and the external switch soft cover 35 is pressed to separate the inner wall of the hose 11 and allow the fluid to pass through when in use, so that the flow and the flow rate can be controlled by the sensitivity of the fingers; meanwhile, because a valve seat and a valve core part occupying a large space are eliminated, fluid is controlled in the closed hose 11, and the opening and closing part is hidden in the opening and closing soft cover 35 and the main body 1, the micro valve which is closed, has no inner leakage and no outer leakage, has no abrasion, is sensitive to operation, and has a smooth and easily cleaned appearance is realized.

Preferably, the radial through holes 36 are two and are symmetrically distributed around the axial through hole 12.

Preferably, the radial through holes 36 may also be single, distributed on one side of the axial through hole 12.

On the basis of example 2, example 3: as shown in fig. 2, the key body 32 includes a switch upper body 321, a switch lower body 322, a gate 323 and a connecting rod 324, the switch upper body 321 is located in the upper cavity 31, the switch lower body 322 is located in the lower cavity 34 and is disposed above the spring 33, the connecting rod 324 is located in the radial through hole 36, the switch upper body 321 and the switch lower body 322 are connected by the connecting rod 324, the gate 323 is installed at the middle position above the switch lower body 322, a through hole is opened in the middle above the lower cavity 34 to connect with the outer wall of the hose 11, and the gate 323 passes through the through hole and presses against and presses the hose 11 under the action of the spring 33.

Specifically, the switch upper body 321 is located in the upper end cavity 31, the switch lower body 322 is located above the spring 33 in the lower end cavity 34, the switch upper body 321 and the switch lower body 322 are connected through the connecting rod 324 in the radial through hole 36, the switch upper body 321 is stressed by pressing the switch soft cover 35, and then the switch lower body 322 is pushed to move downwards through the connecting rod 324, because the gate 323 is installed in the middle position of the switch lower body 322, the gate 323 also moves downwards, the extrusion of the gate 323 to the hose 11 is gradually released, and the fluid in the hose 11 starts to circulate and gradually increases along with the downward movement of the gate 323; when the soft switch cover 35 is not pressed, the gate 323 abuts against the hose 11 by the spring 33, thereby closing the inside of the main hose 11.

It should be understood that the switch upper body 321, the switch lower body 322, the gate 323 and the connecting rod 324 are arranged in a split manner, so as to be conveniently installed in a cavity formed by the upper end cavity 31, the lower end cavity 34 and the radial through hole 36, and meanwhile, the switch upper body 321, the switch lower body 322, the gate 323 and the connecting rod 324 are integrated to ensure the force transmission and realize the circulation of water inside the hose 11; the gate head 323 supports against the hose 11 through a through hole formed in the middle of the lower end cavity 34, and controls the extrusion strength of the hose 11 along with the movement of the gate head 323 to control the water flow, the whole process is easy to control and operate, and the water flow is controlled by only small force and distance.

Preferably, a gap exists between the upper switch body 321 and the bottom surface of the upper cavity 31, and the gap is larger than the compression distance of the spring 33, so that the upper switch body 321 can have a moving space when the lower switch body 322 presses the spring 33.

On the basis of example 3, example 4: as shown in fig. 2, the gate 323 is provided at its upper end with a protrusion which is pressed against the hose 11 by the spring 33 to block the communication between the inlet end 14 and the outlet end 13.

Specifically, the upper end of the gate 323 is a convex structure, and the convex structure at the upper end of the gate 323 is pushed under the action of the spring 33 to press the hose 11 in the inner wall of the upper end of the axial through hole 12, so as to control the flow rate of the fluid in the hose 11.

It should be understood that the protruding structure and the structure of the upper end face of the axial through hole 12 are matched with each other, so that the hose 11 can be better extruded, the hose 11 is closed in a normal state, and the hose 11 can be opened when the hose is pressed downwards.

Preferably, the axial through hole 12 is cylindrical, the cross section of the inner wall is semi-cylindrical, and the protruding structure of the gate 323 is also semi-cylindrical and can be nested and matched with the upper end of the axial through hole 12.

Preferably, the protruding structure at the upper end of the gate 323 is semi-cylindrical.

Example 5 on the basis of example 1: as shown in fig. 1, the portion of the hose 11 protruding in the inlet end 14 is flared; the extension of the hose 11 at the outlet end 13 is arranged coaxially with the outlet end 13.

It should be understood that the portion of the hose 11 at the inlet end 14 is in the shape of a horn, and when fluid enters from the inlet end 14, the horn shape is obviously enlarged under the action of the fluid, so that the fluid can flow into the hose 11 from the inlet end 14, and the outer wall of the hose 11 can be clamped in the section of the axial through hole 12; while the hose 11 is extended beyond the outlet for the purpose of not only conveying fluid, but also for securely connecting the inlet end 14.

Example 6 on the basis of example 1: as shown in FIG. 1, the base-less push button micro valve further comprises an elastic flexible water pipe 4, wherein the elastic flexible water pipe 4 is communicated with the inlet end 14 and an external water source.

It will be appreciated that the resiliently flexible water tube 4 is connected to the inlet end 14 to ensure that the entire base-less push button microvalve is collapsible and extensible during use, improving ease of use.

Example 7 on the basis of example 1: as shown in fig. 1, the hose 11 is made of a silicone material.

It should be understood that the chemical property and physical property of the silica gel material are all very superior, non-toxic, high temperature resistant, acid and alkali resistant, soft and resistant to bending deformation, almost no abrasion and the like, especially in the structure of replacing the valve seat and the valve core in the miniature valve with short and short body length, at the moment when the pipe wall is slightly affected by external force, the soft silica gel pipe, especially the inner wall material, is as the silt carried by river water along with the fluid to help plugging, ensure no internal leakage and embody the soft characteristic; when the fluid is unblocked, the valve returns to the original shape, and the characteristic of the valve of resisting winding deformation is embodied, so that the valve is particularly suitable for forming a new valve throat with a gate head in the valve, and the characteristic of silica gel in the device can also provide certain firmness on connection.

On the basis of examples 1 to 6, example 8: as shown in fig. 3-5, the water spraying brush comprises a valve seat key micro valve and further comprises a brush head 2, a water injection pipeline 21 is arranged inside the brush head 2, a water injection port 25 is arranged at the outer end of the brush head, the water injection pipeline 21 is communicated with the water injection port 25, and the water injection port 25 is detachably clamped with a hose 11 extending out of an outlet end 13.

Specifically, the water injection connector 25 is detachably clamped with the hose 11 extending out of the outlet end 13, the water injection pipeline 21 is connected with the water injection connector 25, water flows into the water injection pipeline 21 through the hose 11 via the water injection connector 25, and finally the water is sprayed out of the brush head 2.

It should be understood that after the hose 11 in the main body 1 is filled with water, the water injection pipeline 21 arranged in the brush head 2 is filled with high water pressure, the water pressure can cause the part of the hose 11 extending out of the outlet end 13 to expand, the sealing and clamping with the water injection interface 25 are realized without leakage, the stable connection between the brush head 2 and the main body 1 is ensured, the brush head is not loosened, when the brush head 2 needs to be replaced, the key body 32 is loosened, the water flow can be closed, the water pressure of the water injection pipeline 21 in the brush head 2 is removed, the expanded hose 11 is restored to the original size and is in loose clamping with the water injection interface 25, and the brush head is convenient to replace; simultaneously, the main body 1 and the brush head 2 are in tenon-and-mortise structure, so that the brush head is convenient to replace, and the tightness of the clamping connection can be ensured.

Preferably, the hose 11 and the brush head 2 are tightly clamped, and under water pressure, the hose 11 expands to extrude the connection point of the brush head 2, so that interference connection between the hose 11 and the brush head 2 is realized, and the water tightness is ensured.

Preferably, the shape of the brush head 2 can be various, and different more targeted shapes can be manufactured according to different cleaning articles.

Preferably, the micro valve without the valve seat key can be applied to the field of brushes, and can also be applied to filling beverages and cleaning small-mouth utensils in the food industry; distributing and filling various liquids in teaching and laboratories; and air flow or liquid scouring certain narrow gaps; or personal hygiene aspects: irrigation of the vagina, the nail groove of the toes, etc.

Example 9 on the basis of example 8: as shown in fig. 4, the water filling connector 25 is a circular ring, and the inner wall of the water filling connector 25 is in clamping fit with the outer wall of the hose 11.

It should be understood that the hose 11 portion in the outlet end 13 is inserted into the water filling connector 25 to realize clamping, that is, the water filling connector 25 is sleeved on the hose 11 to realize clamping, so that the hose 11 can expand under water pressure to realize sealing clamping with the water filling connector 25, and stable connection between the brush head 2 and the main body 1 is ensured without loosening.

Example 10 on the basis of example 8: as shown in fig. 4, at least one connecting pipe taper hole 22 is arranged in the water injection pipeline 21, the connecting pipe taper hole 22 is communicated with the outside through a brush head small hole 23, and the connecting pipe taper hole 22 is in a tapered structure; the big end faces the inside of the water injection pipeline 21, the small end is communicated with the outside through a small brush head hole 23, the cross section of the small brush head hole 23 is larger than that of the small end of the connecting pipe taper hole 22, and bristles 24 are distributed on the outer side of the brush head 2.

Specifically, at least one connecting pipe taper hole 22 is arranged inside the water injection pipeline 21, the connecting pipe taper hole 22 is of a taper structure, the brush head small hole 23 is communicated with the connecting pipe taper hole 22 and the outside, the aperture of the brush head small hole 23 is larger than that of the connecting part of the connecting pipe taper hole 22, bristles 24 are distributed on the outer side of the brush head 2, and articles are cleaned through the bristles 24.

It should be understood that the connection taper hole 22 is communicated with the outside through the brush head small hole 23, so that water flows out from the connection taper hole 22 through the brush head small hole 23, the connection taper hole 22 is a taper hole, water can be made to be cylindrical, water flow can be faster, and washing of the surface of an object is facilitated.

Preferably, the total cross-sectional area of flow in the outlet aperture of the brush head 2 is smaller than the minimum cross-sectional area of flow in the valve, so as to ensure that the water pressure inside the brush head 2 is kept in a high pressure state and the water supply under full pressure is maintained.

Preferably, the connecting pipe taper hole 22 is a taper hole, the minimum aperture is less than 0.3MM, and the wall thickness is less than 0.3 MM; the larger the wall thickness is, the larger the water spraying resistance is, so that when the minimum aperture of the connecting pipe taper hole 22 is less than 0.3MM and the wall thickness is less than 0.3MM in a civil water pressure environment, the sprayed water column has larger impact force and is most suitable for spraying water at a short distance, such as cleaning tooth gaps; when the minimum aperture of the connecting pipe taper hole 22 is close to 0.6MM and the wall thickness is 0.3MM, the water column has the most impact force, and the washing machine is most suitable for washing articles with larger area.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A seatless push button microvalve comprising:

a main body (1) and a push switch (3);

an axial through hole (12) is formed in the middle inside the main body (1), a hose (11) is further arranged inside the axial through hole (12), two ends of the hose (11) extend out of two ends of the axial through hole (12), and two ends of the hose (11) are respectively communicated with an outlet end (13) and an inlet end (14);

the push switch (3) is sleeved on and pressed against the hose (11) to block communication between the inlet end (14) and the outlet end (13), and the push switch (3) is pressed to adjust the passing area in the hose (11) to change the size of fluid circulation between the inlet end (14) and the outlet end (13).

2. The valveless push button microvalve according to claim 1, wherein the push switch (3) comprises: the key comprises an upper end cavity (31), a key body (32), a spring (33), a lower end cavity (34), a switch soft cover (35) and a radial through hole (36); the upper end cavity (31) is located at the upper end of the main body (1) and is connected with the outer end through the switch soft cover (35), the lower end cavity (34) is located at the lower end of the main body (1), the spring (33) is installed at the bottom end of the lower end cavity (34), the upper end cavity (31) is communicated with the lower end cavity (34) through at least one radial through hole (36), the radial through holes (36) and the axial through hole (12) are vertically distributed in a staggered mode at intervals, the key body (32) is installed in a space formed by the upper end cavity (31), the lower end cavity (34) and the radial through hole (36), and the key body (32) is further connected with the spring (33) in the lower end cavity (34); the switch soft cover (35) covers the key body (32).

3. The valveless key microvalve according to claim 2, wherein the key body (32) comprises a switch upper body (321), a switch lower body (322), a gate head (323), and a link (324), the switch upper body (321) is positioned in the upper end cavity (31), the switch lower body (322) is positioned in the lower end cavity (34) and is arranged above the spring (33), the connecting rod (324) is positioned in the radial through hole (36), the switch upper body (321) and the switch lower body (322) are connected through the connecting rod (324), the gate head (323) is arranged at the middle position above the switch lower body (322), a through hole is arranged in the middle above the lower end cavity (34) and connected with the outer wall of the hose (11), the shutter head (323) passes through the through hole and presses against and presses the hose (11) under the action of the spring (33).

4. The valveless push button microvalve according to claim 3, wherein the gate head (323) is provided at an upper end thereof with a projection structure pressed against the flexible tube (11) under the elastic force of the spring (33) to block the communication between the inlet port (14) and the outlet port (13).

5. The valveless key microvalve according to claim 1, wherein the portion of the hose (11) extending in the inlet end (14) is flared; the hose (11) extends coaxially with the outlet end (13) at the outlet end (13).

6. The valveless push button microvalve of claim 1, further comprising a flexible water tube (4), wherein the flexible water tube (4) communicates the inlet port (14) with an external water source.

7. The valveless push button microvalve of claim 1, wherein the flexible tube (11) is made of silicone.

8. A water spraying brush, comprising the micro valve without the valve seat key according to any one of claims 1 to 6, further comprising a brush head (2), wherein a water injection pipeline (21) is arranged inside the brush head (2), a water injection port (25) is arranged at the outer end of the brush head, the water injection pipeline (21) is communicated with the water injection port (25), and the water injection port (25) is detachably clamped with the hose (11) extending from the outlet end (13).

9. The water spraying brush as claimed in claim 8, wherein the water filling port (25) is annular, and the inner wall of the water filling port (25) is in snap fit with the outer wall of the hose (11).

10. The water spraying brush as claimed in claim 8, wherein the water injection pipe (21) is provided with at least one connecting pipe taper hole (22) therein, the connecting pipe taper hole (22) is communicated with the outside through a brush head small hole (23), and the connecting pipe taper hole (22) has a tapered structure; the main part of the brush head is towards the inside of the water injection pipeline (21), the small end of the brush head is communicated with the outside through the small hole (23) of the brush head, the cross section of the small hole (23) of the brush head is larger than that of the small end of the connecting pipe taper hole (22), and brush bristles (24) are distributed on the outer side of the brush head (2).

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