A valve seat-free button micro valve and water spray brush

Abstract

The present invention discloses a valve seat-free button micro valve and a water spray brush, belonging to the field of valves. The valve seat-free button micro valve comprises: a main body and a push switch; an axial through hole is provided in the middle of the main body, a hose is also provided in the axial through hole, two ends of the hose extend from two ends of the axial through hole, and the two ends of the hose are respectively connected to the outlet end and the inlet end; the push switch is sleeved and pressed against the hose to block the connection between the inlet end and the outlet end, and the fluid enters the hose through the inlet end and flows out from the outlet end, and the axial through hole maintains a fixed space of the hose, so that the opening and closing and size of the water flow can be adjusted by pressing the hose with the push switch; the water spray brush of the present invention comprises a brush head, a water injection pipe is provided inside the brush head, a water injection interface is provided at the outer end, the water injection pipe is connected to the water injection interface, the water injection interface is detachably connected to the hose extending from the outlet end, and the water spray brush can be conveniently replaced with cleaning nozzles of different shapes for targeted cleaning, which is convenient and practical.

Description

Technical Field

[0001] The invention relates to the field of valves, and in particular to a valve seat-free button micro valve and a water spray brush. Background Art

[0002] Traditional valves generally use valve seats to control the flow of fluids or gases. In order to prevent fluid leakage, valves generally use sealing packing or sealing diaphragms for operating parts. The existing valve seat technology has the following shortcomings: 1) Wear between the valve seat and the valve core, and between the valve core and the operating part is inevitable; 2) In order to prevent leakage, valves generally use sealing packing or sealing diaphragms for operating parts, resulting in large resistance to the operating switch and inflexible braking; 3) The existing valve core structure cannot meet some needs to quickly and flexibly control the fluid in real time.

[0003] At the same time, in daily life, water and electricity are often needed to help clean various objects; for example, brushing teeth, by adding electric functions to improve the effect, it is easy to produce unintentional displacement, if the method of use is not mastered properly, it is easy to damage the gums; for example, rinsing and scrubbing narrow gaps, various small-caliber utensils, cups, bowls and various daily necessities usually requires washing, brushing, and flushing multiple steps, and also requires changing a variety of cleaning supplies, the process is cumbersome and inconvenient.

[0004] The above existing technologies have the following shortcomings: 1) It is difficult to control when washing items; 2) The flushing pressure is not easy to adjust at any time during washing; 3) Often only a single cleaning tool can correspond to a single cleaning operation, and it is not easy to be compatible with different brush heads to cope with different washing steps. Summary of the invention

[0005] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a new technical solution: to improve the impact force of water discharge from civil water appliances without the need for electricity, and to be able to operate and control it with one hand, so that people can use it comfortably and with confidence; and it is low-priced and the main body can be compatible and replaced.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] Main body and push switch;

[0008] An axial through hole is provided in the middle of the main body, and a hose is provided inside the axial through hole. Two ends of the hose extend out from two ends of the axial through hole, and the two ends of the hose are connected to the outlet end and the inlet end respectively;

[0009] The push switch is sleeved and pressed against the hose to block the communication between the inlet end and the outlet end. The push switch is pressed to adjust the passing area in the hose to change the fluid flow size between the inlet end and the outlet end.

[0010] The beneficial effects of the present invention are as follows: external fluid enters the hose through the inlet end and then flows out from the outlet end through the hose, wherein placing the hose in the axial through hole improves the support of the hose, and facilitates pressing the switch on the hose to adjust the opening and closing of the fluid and the flow rate. During the whole process, the passage of the fluid in the hose is controlled by pressing the switch, and the control can be performed with one hand. The whole device has a simple structure, is convenient and practical, and is inexpensive.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows:

[0012] Further, the push switch includes: an upper cavity, a button body, a spring, a lower cavity, a switch soft cover and a radial through hole; the upper cavity is located at the upper end of the main body and is connected to the outer end through the switch soft cover, the lower cavity is located at the lower end of the main body, the spring is installed at the bottom end of the lower cavity, the upper cavity and the lower cavity are connected through at least one radial through hole, the radial through holes are vertically spaced and staggered with the axial through holes, the button body is installed in the space formed by the upper cavity, the lower cavity and the radial through hole, and the button body is also connected to the spring in the lower cavity; the switch soft cover covers the button body.

[0013] The beneficial effects of adopting the above further scheme are: the spring provides an upward spring force for the button body, and under normal conditions, the button body presses against the spring to squeeze and close the fluid in the hose, and at the same time, the spring is compressed by pressing the button body to control the fluidity in the hose, and the upper cavity, the lower cavity and the radial through hole are arranged around the hose to ensure that the hose part in the push switch is only affected by the button body in the center position; when in use, the inner wall of the hose is separated by pressing the external switch soft cover to allow the fluid to pass, and the flow rate and flow rate can be easily controlled with the sensitivity of the fingers. Since the valve seat and valve core components that occupy a large space are eliminated, the fluid is controlled in the closed hose, and the switch components are hidden in the switch soft cover and the main body, a closed micro valve with no internal leakage or external leakage, no wear, sensitive operation, smooth appearance and easy cleaning is realized.

[0014] Furthermore, the button body includes a switch upper body, a switch lower body, a gate head and a connecting rod, the switch upper body is located in the upper end cavity, the switch lower body is located in the lower end cavity and is placed above the spring, the connecting rod is located in the radial through hole, the switch upper body and the switch lower body are connected by the connecting rod, the gate head is installed in the middle position above the switch lower body, a through hole is opened in the middle above the lower end cavity to connect the outer wall of the hose, the gate head passes through the through hole and presses and squeezes the hose under the action of the spring.

[0015] The beneficial effect of adopting the above further scheme is: the setting of connecting the switch upper body to the switch lower body through the connecting rod ensures the conduction of force, and the switch upper body and then the switch lower body are pushed downward by pressing the external switch soft cover, and finally the gate head moves downward, thereby controlling the flow of the fluid inside the hose; the gate head resists the hose through the through hole, and controls the squeezing strength of the hose with the movement of the switch upper body and the switch lower body to achieve control of the fluid, the whole process is easy to control and operate, and only requires very small force and distance to control the fluid flow rate.

[0016] Furthermore, a protruding structure is provided at the upper end of the gate head, and the protruding structure is pressed against the hose under the elastic force of the spring to block the communication between the inlet end and the outlet end.

[0017] The beneficial effect of adopting the above further scheme is that the upper end of the gate head is a raised structure to facilitate squeezing the hose to close the passage of the fluid in the hose. The gate head closes the hose under normal conditions under the action of the spring, and when pressed downward, the space in the hose can be expanded, thereby improving fluidity.

[0018] Furthermore, the portion of the hose extending from the inlet end is trumpet-shaped; and the portion of the hose extending from the outlet end is coaxially distributed with the outlet end.

[0019] The beneficial effect of adopting the above further scheme is that the part of the hose at the inlet end is trumpet-shaped. When the fluid enters from the inlet end, under the action of the fluid, the trumpet-shaped hose changes towards a planar trend, so that the trumpet shape is significantly expanded, which is conducive to the fluid flowing into the hose from the inlet end and is also conducive to the outer wall of the hose clamping the axial through hole at this end to achieve better sealing.

[0020] Furthermore, the valve seat-less button microvalve also includes an elastic telescopic water pipe, which connects the inlet end with an external water source.

[0021] The beneficial effect of adopting the above further solution is that the elastic telescopic water pipe is connected to the inlet end, which ensures that the entire valve seat-free button micro valve can be shortened and elongated during use, thereby improving the convenience of use.

[0022] Furthermore, the hose is made of silicone material.

[0023] The beneficial effect of adopting the above further scheme is that the chemical and physical properties of silicone material are very superior, especially non-toxic, high temperature resistance, acid and alkali resistance, etc., as well as being soft and resistant to bending and deformation, and almost wear-free, etc., which is particularly suitable for forming a new valve throat with the gate head in this valve, and the ductility of silicone can provide some stability in the connection in this device.

[0024] The second object of the present invention is to provide a water spray brush, including a valve seat-free button microvalve and a brush head, wherein a water injection pipe is provided inside the brush head and a water injection interface is provided at the outer end, the water injection pipe is connected to the water injection interface, and the water injection interface is detachably connected to the hose extending from the outlet end.

[0025] The beneficial effect of adopting the above-mentioned further scheme is that the water injection interface of the brush head is detachably connected to the hose. After water is passed into the hose in the main body, high water pressure will be filled in the water injection pipe inside the brush head. The water pressure will cause the hose part extending from the outlet end to expand and achieve a tight connection with the water injection interface, ensuring that water cannot flow out of the water injection interface, and also ensuring a stable connection between the brush head and the main body and will not loosen. When the brush head needs to be replaced, release the button body, close the passage of water, and the water pressure in the water injection pipe in the brush head is released, the expanded hose part is restored, and it becomes loosely connected with the water injection interface, making it convenient to replace the brush head.

[0026] Furthermore, the water injection interface is in the shape of a circular ring, and the inner wall of the water injection interface and the outer wall of the hose are engaged with each other.

[0027] The beneficial effect of adopting the above further scheme is that the hose at the outlet end of the main body is snap-fitted by being inserted into the water injection interface, that is, the water injection interface is sleeved on the hose to achieve snap-fitting, so that the hose can be expanded under water pressure to achieve a sealed snap-fit ​​with the water injection interface, ensuring a stable connection between the brush head and the main body and will not loosen.

[0028] Furthermore, at least one connecting pipe conical hole is provided inside the water injection pipe, and the connecting pipe conical hole is connected to the outside world through the small hole of the brush head. The connecting pipe conical hole is a conical structure; the large end faces the inside of the water injection pipe, and the small end is connected to the outside world through the small hole of the brush head. The cross-section of the small hole of the brush head is larger than the cross-section of the small end of the connecting pipe conical hole, and bristles are distributed on the outside of the brush head.

[0029] The beneficial effect of adopting the above further scheme is that the conical hole of the connecting pipe is connected with the outside world through the small hole of the brush head, which facilitates the water to flow out from the conical hole of the connecting pipe and then through the small hole of the brush head, wherein the aperture of the small hole of the brush head is larger than the outlet aperture of the conical hole of the connecting pipe, ensuring that the liquid flowing out of the conical hole of the connecting pipe is not affected by the small hole of the brush head, and the total cross-sectional area of ​​the outflow of the conical hole of the conical structure of the connecting pipe is smaller than the smallest cross-sectional area of ​​the flow cross section in the valve. In this case, the outflowing water has a faster flow rate and a stronger water pressure, making it more convenient to complete the cleaning of items. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view of a micro-structure valve without a valve seat and a button in the present invention;

[0031] Figure 2 It is a structural cross-sectional view of the push switch in the present invention;

[0032] Figure 3 It is a structural schematic diagram of a valve seat-free button micro valve and a water spray brush in the present invention;

[0033] Figure 4 It is a structural cross-sectional view of the water spray brush in the present invention;

[0034] Figure 5 It is a cross-sectional view of the connection between the main body and the brush head in the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Main body; 11. Hose; 12. Axial through hole; 13. Outlet end; 14. Inlet end; 2. Brush head; 21. Water injection pipe; 22. Tapered hole of pipe connection; 23. Small hole of brush head; 24. Brush bristles; 25. Water injection interface; 3. Push switch; 31. Upper cavity; 32. Button body; 321. Upper switch body; 322. Lower switch body; 323. Gate head; 324. Connecting rod; 33. Spring; 34. Lower cavity; 35. Soft cover of switch; 36. Radial through hole; 4. Elastic telescopic water pipe. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings, which is not intended to limit the scope of the present invention.

[0038] Example 1: Figure 1-2 As shown, an embodiment of a valve seat-free key micro valve disclosed in the present invention includes:

[0039] A main body 1 and a push switch 3;

[0040] An axial through hole 12 is provided in the middle of the main body 1, and a hose 11 is provided inside the axial through hole 12. Two ends of the hose 11 extend from two ends of the axial through hole 12, and the two ends of the hose 11 are respectively connected to an outlet end 13 and an inlet end 14;

[0041] The push switch 3 is sleeved and pressed against the hose 11 to block the connection between the inlet end 14 and the outlet end 13 . The push switch 3 is pressed to adjust the passing area in the hose 11 to change the fluid flow size between the inlet end 14 and the outlet end 13 .

[0042] Specifically, the hose 11 is arranged in the axial through hole 12, ensuring that the hose 11 can be squeezed and closed by the push switch 3, thereby blocking the internal fluidity. The two ends of the hose 11 are respectively connected to the outlet end 13 and the inlet end 14 to ensure that the fluid enters from the inlet end 14, and then flows through the hose 11 and flows out from the outlet end 13. The push switch 3 is installed in the main body 1 and is sleeved on the hose 11. The water flow rate in the hose 11 is adjusted by squeezing the hose 11.

[0043] It should be understood that the hose 11 is placed in the axial through hole 12 to ensure the verticality and stable pressure resistance of the hose 11. The press switch 3 is mounted and squeezed against the hose 11 to achieve the controllable flow of the fluid in the hose 11. During the whole process, the passage of the fluid in the hose 11 is controlled by pressing the switch 3, and the operation and control can be performed with one hand. The whole device has a simple structure, is convenient and practical, and is inexpensive.

[0044] Preferably, the hose 11 extends into the inner space of the outlet end 13 and the inlet end 14 , wherein the outer walls at both ends of the hose 11 are sealedly connected to the outlet end 13 and the inlet end 14 .

[0045] Based on Example 1, Example 2: Figure 2 As shown, the push switch 3 includes: an upper cavity 31, a button body 32, a spring 33, a lower cavity 34, a switch soft cover 35 and a radial through hole 36; the upper cavity 31 is located at the upper end of the main body 1 and is connected to the outer end through the switch soft cover 35, the lower 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 cavity 34, the upper cavity 31 and the lower cavity 34 are connected by at least one radial through hole 36, the radial through hole 36 is vertically spaced and staggered with the axial through hole 12, the button body 32 is installed in the space formed by the upper cavity 31, the lower cavity 34 and the radial through hole 36, and the button body 32 is also connected to the spring 33 in the lower cavity 34; the switch soft cover 35 covers the button body 32.

[0046] Specifically, the button body 32 is installed in the space formed by the upper cavity 31, the lower cavity 34 and the radial through hole 36, the switch soft cover 35 covers the upper end of the button body 32, and the spring 33 is installed at the bottom end of the lower cavity 34, that is, the spring 33 is located at the lower end of the button body 32 and provides an upward elastic force for the button body 32; the radial through hole 36 and the axial through hole 12 are vertically spaced and staggered, so as to realize the staggered distribution of the radial through hole 36 and the hose 11, and ensure the independent control of the button body 32 on the hose 11.

[0047] It should be understood that the spring 33 provides an upward spring force for the button body 32. Under normal circumstances, the button body 32 blocks the water flow in the hose 11. At the same time, the water flow in the hose 11 is controlled by pressing the button body 32. When in use, the external switch soft cover 35 is pressed to separate the inner wall of the hose 11 and allow the fluid to pass through. The flow rate and flow velocity can be easily controlled with the sensitivity of the fingers. At the same time, since the valve seat and valve core components that occupy a large space are eliminated, the fluid is controlled in the closed hose 11, and the switch components are hidden in the switch soft cover 35 and the main body 1, a closed micro valve with no internal leakage or external leakage, no wear, sensitive operation, smooth appearance and easy cleaning is realized.

[0048] Preferably, there are two radial through holes 36 symmetrically distributed around the axial through hole 12 .

[0049] Preferably, the radial through hole 36 may also be single and distributed on one side of the axial through hole 12 .

[0050] Based on Example 2, Example 3: Figure 2 As shown, the button body 32 includes a switch upper body 321, a switch lower body 322, a gate head 323 and a connecting rod 324. The switch upper body 321 is located in the upper end cavity 31, the switch lower body 322 is located in the lower end cavity 34 and is placed 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 head 323 is installed in the middle position above the switch lower body 322, and a through hole is opened in the middle above the lower end cavity 34 to connect the outer wall of the hose 11. The gate head 323 passes through the through hole and presses and squeezes the hose 11 under the action of the spring 33.

[0051] Specifically, the switch upper body 321 is located in the upper end cavity 31, and 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 by a connecting rod 324 in the radial through hole 36. By pressing the switch soft cover 35, the switch upper body 321 is subjected to force, and then the switch lower body 322 is pushed downward through the connecting rod 324. Since the gate head 323 is installed in the middle position of the switch lower body 322, the gate head 323 also moves downward, and the squeezing of the hose 11 by the gate head 323 is gradually released, and the fluid in the hose 11 begins to circulate and gradually increases as the gate head 323 moves downward; when the switch soft cover 35 is not pressed, the gate head 323 presses against the hose 11 under the action of the spring 33, thereby closing the inside of the main hose 11.

[0052] It should be understood that the switch upper body 321, the switch lower body 322, the gate head 323 and the connecting rod 324 are separately arranged, which is convenient for installation in the cavity formed by the upper cavity 31, the lower cavity 34 and the radial through hole 36. At the same time, the switch upper body 321, the switch lower body 322, the gate head 323 and the connecting rod 324 are integrated into one to ensure the conduction of force and realize the circulation of water inside the hose 11; the gate head 323 supports the hose 11 through the through hole opened in the middle of the lower cavity 34, and controls the squeezing strength of the hose 11 with the movement of the gate head 323 to control the water flow. The whole process is easy to control and operate, and only a small force and distance are required to control the water flow.

[0053] Preferably, there is a gap between the switch upper body 321 and the bottom surface of the upper cavity 31 , and the size of the gap is larger than the compression distance of the spring 33 , so that when the switch lower body 322 squeezes the spring 33 , the switch upper body 321 also has space to move.

[0054] Based on Example 3, Example 4: Figure 2 As shown, a protrusion structure is provided at the upper end of the gate head 323 , and the protrusion structure is pressed against the hose 11 under the elastic force of the spring 33 to block the communication between the inlet end 14 and the outlet end 13 .

[0055] Specifically, the upper end of the gate head 323 is a protruding structure. Under the action of the spring 33, the protruding structure on the upper end of the gate head 323 is pushed to press the hose 11 in the upper end inner wall of the axial through hole 12 to achieve flow rate control of the fluid in the hose 11.

[0056] It should be understood that the protrusion structure cooperates with the structure of the upper end surface of the axial through hole 12 to better squeeze the hose 11, so that the hose 11 is closed under normal conditions and can be opened by pressing downward.

[0057] Preferably, the axial through hole 12 is cylindrical, and the inner wall cross-section is semi-cylindrical. The protruding structure of the gate head 323 is also semi-cylindrical and can be nested with the upper end of the axial through hole 12.

[0058] Preferably, the protruding structure at the upper end of the gate head 323 is semi-cylindrical.

[0059] Based on Example 1, Example 5: Figure 1 As shown, the portion of the hose 11 extending from the inlet end 14 is trumpet-shaped; the portion of the hose 11 extending from the outlet end 13 is coaxially distributed with the outlet end 13 .

[0060] It should be understood that the portion of the hose 11 at the inlet end 14 is trumpet-shaped. When the fluid enters from the inlet end 14, the trumpet shape is significantly expanded under the action of the fluid, which is conducive to the fluid flowing into the hose 11 from the inlet end 14 and is also conducive to the outer wall of the hose 11 clamping this section of the axial through hole 12; at the same time, the extra section of the hose 11 at the outlet is not only for conveying the fluid, but also for firmly connecting the inlet end 14.

[0061] Based on Example 1, Example 6: Figure 1 As shown, the valve seat-less button microvalve also includes an elastic telescopic water pipe 4, which connects the inlet end 14 with an external water source.

[0062] It should be understood that the elastic telescopic water pipe 4 is connected to the inlet end 14, which ensures the retractability and elongation of the entire valve seat-less button micro valve during use, thereby improving the convenience of use.

[0063] Based on Example 1, Example 7: Figure 1 As shown, the hose 11 is made of silicone material.

[0064] It should be understood that the chemical and physical properties of silicone are very superior. It is non-toxic, high temperature resistant, acid and alkali resistant, soft and resistant to bending and deformation, almost wear-free, etc., especially in the structure of replacing the valve seat and valve core in a short micro valve. When the tube wall is slightly closed by a slight external force, the soft silicone tube, especially the inner wall material, is like the mud carried by the river water, which helps to seal along the fluid to ensure no internal leakage, reflecting its soft characteristics; when the fluid flows smoothly, it returns to its original shape, reflecting its resistance to bending and deformation, so it is particularly suitable to form a new valve throat with the gate head in this valve. In this device, the characteristics of silicone can also provide some stability in the connection.

[0065] Based on Examples 1-6, Example 8: Figure 3-5 As shown, a water spray brush includes a valve seat button micro valve and a brush head 2. The brush head 2 has a water injection pipe 21 inside and a water injection interface 25 at the outer end. The water injection pipe 21 is connected to the water injection interface 25. The water injection interface 25 is detachably connected to the hose 11 extending from the outlet end 13.

[0066] Specifically, the water injection interface 25 is detachably connected to the hose 11 extending from the outlet end 13 , and the water injection pipe 21 is connected to the water injection interface 25 . Water flows through the hose 11 and then through the water injection interface 25 to the water injection pipe 21 , and finally sprayed out from the brush head 2 .

[0067] It should be understood that after water is passed into the hose 11 in the main body 1, high water pressure will be filled in the water injection pipe 21 provided inside the brush head 2. The water pressure will cause the part of the hose 11 extending out of the outlet end 13 to expand, and realize the sealed connection with the water injection interface 25 without leakage, which also ensures the stable connection between the brush head 2 and the main body 1 and will not loosen. When the brush head 2 needs to be replaced, the button body 32 is released to close the passage of water, the water pressure in the water injection pipe 21 in the brush head 2 is released, the expanded hose 11 returns to its original size, and becomes loosely connected with the water injection interface 25, which is convenient for replacing the brush head. At this time, the disassembly connection between the main body 1 and the brush head 2 is a mortise and tenon structure, which is convenient for replacing the brush head on the one hand, and on the other hand, it can ensure the tightness of the connection.

[0068] Preferably, the hose 11 and the brush head 2 are tightly connected. Under water pressure, the hose 11 expands and squeezes the connection point of the brush head 2, thereby achieving an interference connection between the hose 11 and the brush head 2 and ensuring water tightness.

[0069] Preferably, the shape of the brush head 2 can be varied, and can be made into different more targeted shapes according to different cleaning objects.

[0070] Preferably, the valve seat-free button microvalve can be used not only in the brush field, but also in the catering industry, such as filling beverages, cleaning small-mouthed containers; distributing and filling various liquids in teaching and laboratories; and flushing certain narrow gaps with air flow or liquid; or in personal hygiene: flushing the vagina, toenail grooves, etc.

[0071] Based on Example 8, Example 9: Figure 4 As shown, the water injection interface 25 is in the shape of a circular ring, and the inner wall of the water injection interface 25 and the outer wall of the hose 11 are engaged with each other.

[0072] It should be understood that the hose 11 part in the outlet end 13 is snap-fitted by being inserted into the water injection interface 25, that is, the water injection interface 25 is sleeved on the hose 11 to achieve snap-fitting, so that the hose 11 can expand under water pressure and achieve a sealed snap-fit ​​with the water injection interface 25, ensuring a stable connection between the brush head 2 and the main body 1 and will not loosen.

[0073] Based on Example 8, Example 10: Figure 4 As shown, at least one connecting tapered hole 22 is provided inside the water injection pipe 21, and the connecting tapered hole 22 is connected to the outside through the small hole 23 of the brush head. The connecting tapered hole 22 is a cone-shaped structure; the large end faces the inside of the water injection pipe 21, and the small end is connected to 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 the cross-section of the small end of the connecting tapered hole 22, and bristles 24 are distributed on the outside of the brush head 2.

[0074] Specifically, at least one connecting pipe cone hole 22 is provided inside the water injection pipe 21, and the connecting pipe cone hole 22 is a cone-shaped structure. The brush head hole 23 connects the connecting pipe cone hole 22 and the outside, and the aperture of the brush head hole 23 is larger than the aperture of the connection with the connecting pipe cone hole 22. Bristles 24 are distributed on the outside of the brush head 2, and items are cleaned by the bristles 24.

[0075] It should be understood that the conical hole 22 of the connecting pipe is connected to the outside through the small hole 23 of the brush head, so that water can flow out from the conical hole 22 of the connecting pipe through the small hole 23 of the brush head. The conical hole 22 of the connecting pipe is a conical hole, which can make the water outlet cylindrical and make the water flow faster, so as to facilitate the flushing of the surface of the object.

[0076] Preferably, the total flow cross-sectional area of ​​the water outlet apertures in the brush head 2 is smaller than the smallest flow cross-sectional area in the valve, so as to ensure that the water pressure inside the brush head 2 remains in a high pressure state and maintain water supply under saturated pressure.

[0077] Preferably, the conical hole 22 of the connecting pipe is a conical hole with a minimum aperture of less than 0.3MM and a wall thickness of less than 0.3MM; the greater the wall thickness, the greater the obstruction to water spraying, so under a civilian water pressure environment, when the minimum aperture of the conical hole 22 of the connecting pipe is less than 0.3MM and the wall thickness is less than 0.3MM, the sprayed water column has a greater impact force and is most suitable for close-range water spraying, such as cleaning between teeth; when the minimum aperture of the conical hole 22 of the connecting pipe is close to 0.6MM and the wall thickness is 0.3MM, the water column has the greatest impact force and is most suitable for washing items with a larger area.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve seat-less button micro valve, characterized in that: include: A main body (1) and a push switch (3); an axial through hole (12) is provided in the middle of the main body (1), a hose (11) is provided inside the axial through hole (12), two ends of the hose (11) extend from two ends of the axial through hole (12), and the two ends of the hose (11) are respectively connected to an outlet end (13) and an inlet end (14); The push switch (3) is sleeved and pressed against the hose (11) to block the communication between the inlet end (14) and the outlet end (13); the push switch (3) is pressed to adjust the passage area in the hose (11) to change the size of the fluid flow between the inlet end (14) and the outlet end (13); The push switch (3) comprises: an upper cavity (31), a key body (32), a spring (33), a lower cavity (34), a switch soft cover (35) and a radial through hole (36); the upper cavity (31) is located at the upper end of the main body (1) and is connected to the outer end through the switch soft cover (35); the lower 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 cavity (34); the upper cavity (31) and the lower cavity (34) are connected to each other. The upper cavity (31), the lower cavity (34) and the radial through hole (36) are connected to each other through at least one radial through hole (36), the radial through hole (36) and the axial through hole (12) are vertically spaced and staggered, the key body (32) is installed in a space formed by the upper cavity (31), the lower cavity (34) and the radial through hole (36), and the key body (32) is also connected to the spring (33) in the lower cavity (34); the switch soft cover (35) covers the key body (32); The key body (32) comprises a switch upper body (321), a switch lower body (322), a gate head (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 placed 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 via the connecting rod (324); the gate head (323) is installed in the middle position above the switch lower body (322); a through hole is opened in the middle of the upper part of the lower cavity (34) to connect to the outer wall of the hose (11); the gate head (323) passes through the through hole and, under the action of the spring (33), presses against and squeezes the hose (11); A protruding structure is provided at the upper end of the gate head (323), and the protruding structure, under the elastic force of the spring (33), presses against the hose (11) to block the communication between the inlet end (14) and the outlet end (13); It also includes an elastic telescopic water pipe (4), wherein the elastic telescopic water pipe (4) is connected to the inlet end (14) and an external water source.

2. The valve seat-less button micro valve according to claim 1, characterized in that: The portion of the hose (11) extending from the inlet end (14) is trumpet-shaped; the portion of the hose (11) extending from the outlet end (13) is coaxially distributed with the outlet end (13).

3. The valve seat-less button micro valve according to claim 1, characterized in that: The hose (11) is made of silicone material.

4. A water spray brush, characterized in that: The invention comprises the valve seat-free key-operated micro valve according to any one of claims 1 to 3, and further comprises a brush head (2), wherein the brush head (2) is provided with a water injection pipe (21) inside and a water injection interface (25) at the outer end, wherein the water injection pipe (21) is connected to the water injection interface (25), and the water injection interface (25) is detachably connected to the hose (11) extending from the outlet end (13).

5. The water spray brush according to claim 4, characterized in that: The water injection interface (25) is in the shape of a circular ring, and the inner wall of the water injection interface (25) and the outer wall of the hose (11) are mutually engaged and matched.

6. The water spray brush according to claim 4, characterized in that: At least one connecting pipe tapered hole (22) is provided inside the water injection pipe (21), and the connecting pipe tapered hole (22) is connected to the outside through a small hole (23) on the brush head. The connecting pipe tapered hole (22) is a cone-shaped structure; the large end faces the inside of the water injection pipe (21), and the small end is connected to the outside through the small hole (23) on the brush head. The cross section of the small hole (23) on the brush head is larger than the cross section of the small end of the connecting pipe tapered hole (22). Bristles (24) are also distributed on the outside of the brush head (2).

Images