Gear-adjustable automatic constant-pressure valve and deep ultraviolet self-water-cooling constant-pressure water sterilizer

Abstract

The invention relates to a gear-adjustable automatic constant-pressure valve and a deep ultraviolet self-water-cooling constant-pressure water sterilizer, and belongs to the technical field of constant-pressure valves. The constant pressure valve comprises a water retaining structure, a constant pressure base, a first elastic silica gel piece and a second elastic silica gel piece. The water retaining structure comprises a water retaining body, and a water guide groove and a first silica gel mounting through hole are formed in the upper surface of the water retaining body. The constant-pressure base comprises a fence, an annular platform is connected to the inner middle of the fence, a plurality of normally-open drainage grooves are formed in the annular platform and located below the water guide groove, a through hole in the middle of the annular platform is a second silica gel mounting through hole, and a plurality of water outlet holes are formed in the bottom of the fence; the first elastic silica gel piece is formed by stacking three cylinders, the cylinder on the uppermost layer is matched with the first silica gel mounting through hole, and the cylinder on the lowermost layer is matched with the second silica gel mounting through hole; and the second elastic silica gel piece sleeves the periphery of the middle cylinder and is lower than the middle cylinder. The device can effectively cope with small water pressure change and large water pressure change.

Description

Technical Field

[0001] This invention relates to the field of constant pressure valve technology, and in particular to an automatic constant pressure valve with adjustable settings and a deep ultraviolet self-cooled constant pressure water sterilizer. Background Technology

[0002] In many industrial and civil fields, such as water treatment, medical and health care, and food processing, there are high requirements for precise fluid control. As a key fluid control device, the constant pressure valve ensures that the fluid maintains a stable flow rate or pressure under different pressure conditions, thereby guaranteeing the normal operation and stable performance of related equipment.

[0003] However, traditional constant pressure valves have some shortcomings in practical applications. For example, their sealing performance is often not ideal, and they are prone to leakage due to wear or aging, affecting the accuracy of fluid control. At the same time, due to the limitations of assembly design, the adjustment accuracy is limited, making it difficult to meet control requirements. Furthermore, existing constant pressure valves have a single function; when facing large pressure fluctuations, complex adjustments or replacement with different valve models are usually required, lacking versatility and flexibility. These problems limit the application of constant pressure valves in special application scenarios. Specifically: First, traditional constant pressure valves consist of separate structures including the valve body, valve cover, valve plug (piston), elastic adjustment component, elastic sealing diaphragm, annular sealing ring, and valve disc. They achieve constant pressure by using water pressure to move the valve plug, thus blocking water flow. To ensure a tight seal during movement, various shaped sealing rings (O-rings, V-rings, X-rings) are arranged around the valve plug. These sealing rings generate significant friction with the sidewalls as the valve moves. The higher the sealing requirements and the greater the water pressure, the greater the friction. This friction affects the valve's responsiveness to small pressure changes. Specifically, when the water pressure acting on the valve is less than the friction between the sealing rings and the sidewalls, the valve will not function, losing its pressure-regulating function. Second, the elastic adjustment component of traditional constant pressure valves is primarily a metal spring. The spring force depends mainly on its physical properties, and the initial spring force setting needs to match the water pressure of the operating environment. Lacking a sufficient adjustment mechanism to handle pressure changes, it can only produce a fixed elastic deformation to restrict water flow, resulting in limited adjustment accuracy and the inability to perform multi-stage adjustments. Third, traditional constant pressure valves have many parts, resulting in high production and assembly costs. They are also quite bulky and difficult to apply in environments with strict size requirements.

[0004] Therefore, in order to address the aforementioned technical deficiencies, this invention designs a low-cost, small-sized constant pressure valve that enables automatic and constant water flow control and can be adjusted in multiple levels to cope with rapid changes in water pressure, thus solving the above-mentioned technical deficiencies. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an automatic constant pressure valve with adjustable settings and a deep ultraviolet self-cooled constant pressure water sterilizer. The technical solution of the present invention is as follows: In one aspect, an automatic constant pressure valve with adjustable gears is provided, which includes at least a water-blocking structure, a constant pressure base, a first elastic silicone element, and a second elastic silicone element. The water-blocking structure includes a disc-shaped water-blocking body, with several evenly distributed water-guiding grooves on the edge of the upper surface of the water-blocking body, and a first silicone mounting through hole in the middle of the upper surface of the water-blocking body. The constant pressure base includes a cylindrical enclosure with an annular platform connected to the center of the enclosure. Several normally open drain channels are evenly distributed on the annular platform. The normally open drain channels correspond one-to-one with the water guide channels and are located below the water guide channels. The through hole in the center of the annular platform is a second silicone mounting through hole. Several evenly distributed water outlet holes are opened at the bottom of the enclosure. The first elastic silicone component consists of three stacked cylinders, with the top cylinder matching the first silicone mounting through hole and the bottom cylinder matching the second silicone mounting through hole. The second elastic silicone element is annular and is fitted around the central cylinder of the first elastic silicone element, with a height lower than the central cylinder.

[0006] Preferably, the water guide channel slopes downward from the middle of the water-blocking structure towards the edge; the normally open drainage channel has a trapezoidal structure, and the arc length near the edge of the annular platform is greater than the arc length away from the edge of the annular platform.

[0007] Preferably, the water-blocking structure and the constant pressure base are both made of plastic; the first elastic silicone part and the second elastic silicone part are both made of silicone rubber, and the first elastic silicone part and the second elastic silicone part have the same or different Shore hardness.

[0008] Preferably, the number of water guide channels and normally open drain channels are both eight, and the number of water outlet holes is four.

[0009] Secondly, a deep ultraviolet self-cooled constant pressure water sterilizer is provided, which includes a constant pressure mechanism, a light source and heat dissipation mechanism, and a sterilization and sealing mechanism. The constant pressure mechanism adopts the adjustable automatic constant pressure valve described in the first aspect, which is used to regulate the pressure of the water to be sterilized. The light source and heat dissipation mechanism are installed above the constant pressure mechanism to emit deep ultraviolet light and perform self-water cooling of the light source. The sterilization and sealing mechanism is installed around the constant pressure mechanism and the light source and heat dissipation mechanism, and is used to sterilize the water to be sterilized and maintain the sealed state of the device.

[0010] Preferably, the light source and heat dissipation mechanism includes a square groove tube with a central through hole, four deep ultraviolet LED lamp panels, and a quartz transparent tube. The top and bottom ends of the square groove tube are respectively a round tubular water inlet and water outlet. Lamp panel mounting grooves are opened around the square groove tube, the deep ultraviolet LED lamp panels are installed in the lamp panel mounting grooves, and the quartz transparent tube is sleeved around the square groove tube.

[0011] Preferably, the sterilization and sealing mechanism includes a sterilization base, a top cover, an outer shell, and a water-dividing baffle. The sterilization base is installed around the perimeter of the enclosure, and a step is provided on the inner side of the sterilization base. The water-dividing baffle is installed on the step and has four water outlet slots. The water outlet slots are located above the water outlet holes and below the deep ultraviolet LED light panel. A quartz transparent tube is installed above the water-dividing baffle, and a second sealing element is installed between the quartz transparent tube and the water-dividing baffle. The outer shell is cylindrical, and the bottom of the outer shell is connected to the sterilization base and located above the water-dividing baffle. The top cover is connected to the top of the outer shell, and the water inlet passes through the top cover and extends out from the top cover. A first sealing element is installed between the top cover and the square groove tube. A water outlet is connected to the top of the outer shell.

[0012] Preferably, the top cover, outer shell, and sterilization base are all provided with prismatic protrusions around their periphery.

[0013] Preferably, the inner surface of the outer shell has several protrusions, which face the deep ultraviolet LED lamp panel; the inner walls of the top cover and the sterilization base are connected with several buckles; the top and bottom of the outer shell are provided with several L-shaped grooves, which correspond one-to-one with the buckles and lock together.

[0014] Preferably, the outer shell is made of Teflon plastic.

[0015] All of the above-mentioned optional technical solutions can be combined arbitrarily, and the present invention will not provide a detailed description of the structure after each combination.

[0016] By means of the above solution, the beneficial effects of the present invention are as follows: By setting up a water-blocking structure, a constant pressure base, and a first elastic silicone element and a second elastic silicone element working together to form an adjustable automatic constant pressure valve, the device can automatically adjust the water flow when faced with changes in water pressure. The first elastic silicone element and the second elastic silicone element work together to effectively respond to both small and large changes in water pressure.

[0017] By incorporating a deep ultraviolet self-cooled constant-pressure water sterilizer, including an adjustable automatic constant-pressure valve, the outlet water pressure is automatically adjusted according to the water flow rate, ensuring stable water flow and thus guaranteeing sterilization effectiveness. Furthermore, by integrating a light source and a heat dissipation mechanism, which self-cool the light source, the water flow channel and heat dissipation channel are combined into one, resulting in low cost and compact size.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the adjustable automatic constant pressure valve provided by the present invention.

[0020] Figure 2 This is an exploded structural diagram of the adjustable automatic constant pressure valve provided by the present invention.

[0021] Figure 3 This is a schematic diagram of the water-blocking structure in this invention.

[0022] Figure 4 This is a schematic diagram of the constant pressure base in this invention.

[0023] Figure 5 This is a schematic diagram illustrating the changes of the adjustable automatic constant pressure valve provided by this invention before and after being subjected to water impact.

[0024] Figure 6 This is a schematic diagram of the structure of the deep ultraviolet self-cooled constant pressure water sterilizer provided by the present invention.

[0025] Figure 7 This is a schematic diagram of the exploded structure of the deep ultraviolet self-cooled constant pressure water sterilizer provided by the present invention (only one deep ultraviolet LED light panel is shown).

[0026] Figure 8 This is a cross-sectional view of the deep ultraviolet self-cooled constant pressure water sterilizer provided by the present invention.

[0027] Figure 9 This is a schematic diagram of the water-blocking structure in this invention.

[0028] Figure 10 This is a schematic diagram of the constant pressure base in this invention.

[0029] Figure 11 This is a cross-sectional view of the sterilization base and the constant pressure base in this invention.

[0030] Figure 12 This is a schematic diagram of the square groove tube in this invention. Detailed Implementation

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0032] like Figures 1 to 4As shown, the adjustable automatic constant pressure valve provided in this embodiment of the invention includes at least a water-blocking structure 1, a constant pressure base 2, a first elastic silicone element 3, and a second elastic silicone element 4. The water-blocking structure 1 includes a disc-shaped water-blocking body 1-1, with several evenly distributed water-guiding grooves 1-2 opened on the edge of the upper surface of the water-blocking body 1-1, and a first silicone mounting through hole 1-3 opened in the middle of the upper surface of the water-blocking body 1-1. The constant pressure base 2 includes a cylindrical enclosure 2-1, with an annular platform 2-2 fixedly connected to the center of the enclosure 2-1. The annular platform 2-2 has several evenly distributed normally open drain channels 2-3, which correspond one-to-one with the water guide channels 1-2 and are located below the water guide channels 1-2. The through hole in the center of the annular platform 2-2 is a second silicone mounting through hole 2-4, and the bottom of the enclosure 2-1 has several evenly distributed water outlet holes 2-5. The first elastic silicone component 3 is three cylinders stacked together. The uppermost cylinder matches the first silicone mounting through hole 1-3, and the lowermost cylinder matches the second silicone mounting through hole 2-4. The second elastic silicone element 4 is annular and is fitted around the central cylinder of the first elastic silicone element 3, with a height lower than the central cylinder.

[0033] The water-blocking structure 1 (water-blocking body 1-1) is made of plastic, possessing high hardness and capable of withstanding repeated impacts from water flow without damage. The water guide channel 1-2 guides the water flow. The first silicone mounting through hole 1-3 is used to accommodate the uppermost cylinder of the first elastic silicone component 3. The constant pressure base 2 is made of plastic. The second silicone mounting through hole 2-4 is used to accommodate the lowermost cylinder of the first elastic silicone component 3. In the first elastic silicone component 3, the three cylinders are integrally formed, with the middle cylinder having the largest diameter. Both the first elastic silicone component 3 and the second elastic silicone component 4 are made of silicone rubber, and their Shore hardness can be the same or different.

[0034] This invention employs a top-inlet, bottom-outlet water flow treatment method, with all parts assembled concentrically. Two-stage elastic structural components (first elastic silicone component 3 and second elastic silicone component 4) support and fix the water-blocking structure 1, generating the expected compressive deformation when subjected to pressure. After installation, the central cylinder of the first elastic silicone component 3 is sandwiched between the water-blocking structure 1 and the constant pressure base 2, undergoing elastic deformation under the pressure of both.

[0035] In one specific embodiment, the number of water guide channels 1-2 and normally open drain channels 2-3 are both eight, and the number of water outlets 2-5 is four.

[0036] In one specific embodiment, the water guide channel 1-2 slopes downwards from the middle to the edge of the water-blocking structure 1-1; the normally open drain channel 2-3 has a trapezoidal structure, and the arc length near the edge of the annular platform 2-2 is greater than the arc length away from the edge of the annular platform 2-2. When water flows and impacts the water-blocking body 1-1, it flows downstream through the water guide channel 1-2 and the normally open drain channel 2-3, and finally exits from the outlet hole 2-5.

[0037] The adjustable automatic constant pressure valve provided in this embodiment of the invention, in its initial state (when not subjected to water flow impact), with the water-blocking body 1-1 supported by the first elastic silicone element 3, has a small gap between the lower surface of the water-blocking body 1-1 and the annular platform 2-2. Figure 5 As shown in Figure (a), when the water flows to the top of the device, it will directly contact the water-blocking body 1-1. The impact force of the water flow acts on the water-blocking body 1-1, and the water-blocking body 1-1 will be squeezed by the elastic silicone parts supporting it.

[0038] When the water pressure is low, only the first elastic silicone element 3 supports the water-blocking body 1-1. Furthermore, the water-blocking body 1-1 is made of a material with low Shore hardness, resulting in good elasticity. Therefore, even with slight changes in water pressure, it can promptly undergo compression deformation to drive the water-blocking structure 1 to block the water flow, achieving sensitive constant pressure control. When the gap exists, it can serve as a drainage channel, allowing the incoming water to drain through the water guide channel 1-2 and the normally open drainage channel 2-3 to the area around the second elastic silicone element 4, and then discharge through the outlet hole 5-3.

[0039] When the water-blocking body 1-1 is subjected to high water pressure, the compression stroke of the first elastic silicone element 3 is insufficient. After being compressed and deformed to a certain extent, it will work together with the second elastic silicone element 4 to withstand the compression of the water-blocking structure 1. Due to the increased contact area (assuming the first elastic silicone element 3 and the second elastic silicone element 4 have the same Shore hardness), the two share the pressure and can cope with a wide range of water pressure changes. Of course, the second elastic silicone element 4 can also be flexibly selected with silicone rubber of a different Shore hardness than the first elastic silicone element 3, depending on the application scenario. Its inner circle and the middle cylinder of the first elastic silicone element 3 are concentrically nested and assembled, and its overall height is slightly lower than the height of the middle cylinder of the first elastic silicone element 3. After the first elastic silicone element 3 is compressed and deformed, its height gradually decreases until the height of the first elastic silicone element 3 is the same as the height of the second elastic silicone element 4. At this time, the first elastic silicone element 3 and the second elastic silicone element 4 simultaneously support the top water-blocking structure 1 and are simultaneously compressed and deformed. Due to the increased contact area between the water-blocking structure 1 and the silicone element, it can withstand greater water pressure, thereby realizing multi-level water pressure adjustment.

[0040] Furthermore, after compression deformation, the compressed first elastic silicone element 3 will cause the water-blocking structure 1 to move downwards. As the water pressure increases, the gap will become smaller and smaller until it disappears completely. At this point, the gap closes, and no water flows through the water-blocking body 1-1 and the contact area. Only the normally open drain channel 2-3 allows water to flow through. Figure 5 As shown in Figure (b). Because the size of the gap is mainly affected by the water pressure, that is, the greater the water pressure, the greater the impact of the water flow on the water-blocking structure 1, and the greater the pressure transmitted to the first elastic silicone part 3 and the second elastic silicone part 4. The elastic silicone part is compressed and deformed more obviously. At this time, the gap becomes smaller, restricting the water flow and ensuring the flow rate of the downstream water channel is stable. In this way, the constant pressure effect is achieved.

[0041] In traditional technology, constant pressure valves require complex components for sealing and operation due to their structural design. Furthermore, due to friction between the seals and the valve body, they are not sensitive to minute changes in water pressure, failing to respond effectively. Their adjustment is also limited, and the factory-set working water pressure cannot be quickly adjusted in real-world conditions. To avoid the significant static friction between the valve plug and valve body, as described in the background art, this invention employs an innovative structure. A tiny gap is formed between the water-blocking structure 1 and the constant pressure base 2, avoiding static friction similar to that between the valve plug and valve body. This allows the overall constant pressure valve to promptly transmit pressure changes to the underlying structure even with minor water pressure variations, improving its sensitivity. Additionally, this invention achieves multi-level adjustable constant water pressure through the nested cooperation of two stages of elastic structural components. When the water pressure is low, the first elastic silicone component 3 plays a primary adjusting role. The first elastic silicone component 3 has a small contact area with the water-blocking structure 1, allowing it to deform effectively even under relatively small forces. When the water pressure is high, the first elastic silicone component 3 and the second elastic silicone component 4 work together to achieve the purpose of adjusting the water pressure in multiple levels.

[0042] It should be noted that, in specific implementations, the adjustable automatic constant pressure valve may further include a ring-shaped third elastic silicone element, which is sequentially sleeved around the second elastic silicone element 4, and its height is lower than that of the second elastic silicone element 4. Furthermore, a ring-shaped fourth elastic silicone element may also be sleeved around the third elastic silicone element, and the height of the fourth elastic silicone element is lower than that of the third elastic silicone element, and so on. In other words, the number of ring-shaped elastic silicone elements in this embodiment can be selected as needed.

[0043] The present invention also provides a deep ultraviolet self-cooled constant pressure water sterilizer. To fully explain the effect of the deep ultraviolet self-cooled constant pressure water sterilizer provided in the embodiments of the present invention, the deep ultraviolet flowing water sterilizer in the prior art will be briefly introduced below.

[0044] The working principle of deep ultraviolet flowing water sterilizer is mainly to use the specific wavelength light emitted by deep ultraviolet LED to irradiate the flowing water, destroy the DNA structure of microorganisms in the water, thereby achieving the purpose of sterilization and disinfection. However, the existing deep ultraviolet flowing water sterilizer has obvious shortcomings in automatic water flow control and heat dissipation during operation. Specifically, it is as follows: (1) It cannot effectively cope with the changes in water flow and velocity caused by unstable water source pressure: When the flow rate increases and exceeds the rated flow rate, the sterilizer may not be able to irradiate enough ultraviolet dose to the water to be sterilized, resulting in insufficient sterilization effect. If a constant pressure valve is added to the sterilizer, the traditional constant pressure valve has many drawbacks. For example, its sealing performance is often not ideal, and it is easy to leak due to wear or aging, affecting the accuracy of fluid control. At the same time, due to the influence of assembly design, the adjustment accuracy is insufficient and it is difficult to meet the control requirements. In addition, the existing constant pressure valve has a single function. When facing large-scale pressure fluctuations, it is usually necessary to make complex adjustments or replace different models of valves. It lacks versatility and flexibility and has a large size. (2) Insufficient heat dissipation: Existing deep ultraviolet flowing water sterilizers generally use passive air convection heat dissipation (such as attaching metal heat sinks to the back of the circuit board), which has limited heat dissipation efficiency. When dealing with large flow rates of water sterilization, more deep ultraviolet LED beads are usually required, and the heat generation will also increase dramatically. Traditional heat dissipation methods are usually unable to cope with this situation. Insufficient heat dissipation will reduce the luminous efficiency and lifespan of LEDs. In addition, some existing sterilizers that use water cooling usually require water cooling channels, and the water cooling channels are separated from the sterilization water flow channels, which is costly and cannot be used in scenarios with high size constraints.

[0045] To address the aforementioned problems with existing deep ultraviolet flowing water sterilizers, such as... Figures 6 to 12 As shown in the figure, this embodiment of the invention provides a deep ultraviolet self-cooled constant pressure water sterilizer, which includes a constant pressure mechanism, a light source and heat dissipation mechanism 5, and a sterilization and sealing mechanism 6. The constant pressure mechanism adopts an automatic constant pressure valve with adjustable settings as described in the above embodiment, which is used to regulate the pressure of the water to be sterilized. The light source and heat dissipation mechanism 5 is installed above the constant pressure mechanism, which is used to emit deep ultraviolet light and perform self-cooling heat dissipation on the light source. The sterilization and sealing mechanism 6 is installed around the constant pressure mechanism and the light source and heat dissipation mechanism 5, which is used to sterilize the water to be sterilized and maintain the sealed state of the device.

[0046] The composition and working principle of the adjustable automatic constant pressure valve have been explained in detail in the above embodiments, and will not be repeated here.

[0047] The deep ultraviolet self-cooled constant pressure water sterilizer provided in this embodiment of the invention, through the setting of an adjustable automatic constant pressure valve, can effectively cope with the changes in water flow rate and velocity caused by unstable water source pressure. It also features high adjustment accuracy, improved versatility and flexibility, and a small size, making it suitable for use in deep ultraviolet flowing water sterilizers. By incorporating a light source and a heat dissipation mechanism 5, the light source is self-cooled, integrating the water flow channel and heat dissipation channel into one, resulting in low cost and small size.

[0048] In one specific embodiment, the light source and heat dissipation mechanism 5 includes a square groove tube 5-1 with a central through hole, four deep ultraviolet LED lamp panels 5-2, and a quartz transparent tube 5-3. The top and bottom ends of the square groove tube 5-1 are respectively a cylindrical water inlet 5-4 and a water outlet 5-5. Lamp panel mounting grooves are formed around the square groove tube 5-1. The deep ultraviolet LED lamp panels 5-2 are installed in the lamp panel mounting grooves, and the quartz transparent tube 5-3 is sleeved around the square groove tube 5-1.

[0049] The square tube 5-1 is made of copper or stainless steel. It is machined on a low-cost lathe to form the inlet 5-4 and outlet 5-5 into a cylindrical shape. The square tube 5-1 has mounting slots for the LED panel on all four sides, ensuring a tight fit between the deep ultraviolet LED panel 5-2 and the tube, guaranteeing excellent heat conduction efficiency. The central through-hole in the square tube 5-1 serves as a water flow channel, combining the functions of a water flow channel and a heat dissipation channel. As water flows through, the heat generated by the deep ultraviolet LED panel 5-2 is conducted to the cooler water for sterilization, thus cooling the deep ultraviolet LED panel 5-2 and achieving self-cooling.

[0050] In one specific embodiment, the sterilization and sealing mechanism 6 includes a sterilization base 6-1, a top cover 6-2, a shell 6-4, and a water-dividing baffle 6-6. The sterilization base 6-1 is installed around the perimeter of the enclosure 2-1. A step 6-8 is provided on the inner side of the sterilization base 6-1. The water-dividing baffle 6-6 is installed on the step 6-8. Four water outlet grooves 6-7 are provided on the water-dividing baffle 6-6. The water outlet grooves 6-7 are located above the water outlet holes 2-5 and below the deep ultraviolet LED light panel 5-2. A quartz transparent tube 5-3 is installed on the water-dividing baffle. A second sealing element 6-5 is installed above the baffle 6-6 and between the quartz transparent tube 5-3 and the water-dividing baffle 6-6. The outer shell 6-4 is cylindrical. The bottom of the outer shell 6-4 is detachably connected to the sterilization base 6-1 and is located above the water-dividing baffle 6-6. The top cover 6-2 is detachably connected to the top of the outer shell 6-4. The water inlet 5-4 passes through the top cover 6-2 and extends out of the top cover 6-2. A first sealing element 6-3 is installed between the top cover 6-2 and the square groove tube 5-1. The top of the outer shell 6-4 is connected to the water outlet 6-9.

[0051] During operation, when water enters the device through the inlet 5-4, it is guided to the bottom of the square tube 5-1 through the central hole. At this time, the impact force of the water flow acts on the water-blocking structure 1. After pressure regulation by the adjustable automatic constant pressure valve, the water is discharged through the outlet 2-5. The water to be sterilized discharged from the outlet 2-5 reaches the space between the quartz transparent tube 5-3 and the outer shell 6-4 through the outlet trough 6-7, and is sterilized by the deep ultraviolet light emitted by the deep ultraviolet LED light panel 5-2. The sterilized water is then discharged from the water outlet 6-9.

[0052] In one specific embodiment, the top cover 6-2, the outer shell 6-4, and the sterilization base 6-1 are all provided with prismatic protrusions on their periphery to facilitate gripping and assembly.

[0053] In one specific embodiment, the inner surface of the outer shell 6-4 has a plurality of protrusions 6-4-1, which face the deep ultraviolet LED lamp panel 5-2. The protrusions 6-4-1 can scatter the deep ultraviolet rays emitted by the deep ultraviolet LED lamp panel 5-2, ensuring that no blind spots are generated.

[0054] In one specific embodiment, the inner walls of the top cover 6-2 and the sterilization base 6-1 are each connected with a number of buckles 6-10, and the top and bottom of the outer shell 6-4 are each provided with a number of L-shaped grooves, which correspond one-to-one with the buckles and lock together.

[0055] In one specific embodiment, the outer shell 6-4 is made of Teflon plastic to better reflect deep ultraviolet light.

[0056] In summary, the deep ultraviolet self-cooled constant pressure water sterilizer provided in this embodiment of the invention has the following beneficial effects: (1) With a simple structure and low cost, it can automatically adjust the outlet pressure according to the water flow when faced with changes in water pressure, thus ensuring the stability of water flow. No external energy supply is required, which ensures the stability of sterilization effect.

[0057] (2) By structural innovation, the huge static friction between the plug valve structure and the valve body in the traditional constant pressure valve is avoided. This can effectively solve the problem that the plug valve cannot move when the thrust of the water flow pressure on the plug valve is less than the static friction, thus improving the sensitivity of the entire constant pressure valve.

[0058] (3) Through the nesting and cooperation of two-stage elastic structural components, the water pressure can be adjusted in multiple levels. When the water pressure is low, the first elastic silicone component 3 plays the main adjustment role. The contact area between the first elastic silicone component 3 and the water-blocking structure is small, so it can be effectively deformed even under a small force. When the water pressure is high, the first elastic silicone component 3 and the second elastic silicone component 4 work together to achieve constant water pressure adjustment and achieve the purpose of multi-level water pressure adjustment.

[0059] (4) Using simple materials and processing technology, the device uses the water to be sterilized to cool the deep ultraviolet LED lamp board 5-2, achieving self-cooling. As long as water can pass through, the heat dissipation is normal. There is no additional energy supply, the heat dissipation is efficient, and the structure is simple and reliable.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic constant pressure valve with adjustable gear positions, characterized in that, It includes at least a water-blocking structure (1), a constant pressure base (2), a first elastic silicone component (3), and a second elastic silicone component (4); The water-blocking structure (1) includes a disc-shaped water-blocking body (1-1), with several evenly distributed water-guiding grooves (1-2) on the edge of the upper surface of the water-blocking body (1-1), and a first silicone mounting through hole (1-3) in the middle of the upper surface of the water-blocking body (1-1). The constant pressure base (2) includes a cylindrical enclosure (2-1), with an annular platform (2-2) connected to the center of the enclosure (2-1). The annular platform (2-2) has several evenly distributed normally open drain channels (2-3), which correspond one-to-one with the water guide channel (1-2) and are located below the water guide channel (1-2). The through hole in the center of the annular platform (2-2) is a second silicone mounting through hole (2-4), and the bottom of the enclosure (2-1) has several evenly distributed water outlet holes (2-5). The first elastic silicone component (3) is three cylinders stacked together. The uppermost cylinder matches the first silicone mounting through hole (1-3), and the lowermost cylinder matches the second silicone mounting through hole (2-4). The second elastic silicone component (4) is annular and is fitted around the middle cylinder of the first elastic silicone component (3), with a height lower than the middle cylinder.

2. The adjustable automatic constant pressure valve according to claim 1, characterized in that, The water guide channel (1-2) slopes downward from the middle of the water-blocking structure (1-1) towards the edge; the normally open drain channel (2-3) is a trapezoidal structure, and the arc length near the edge of the annular platform (2-2) is greater than the arc length away from the edge of the annular platform (2-2).

3. The adjustable automatic constant pressure valve according to claim 1, characterized in that, The water-blocking structure (1) and the constant pressure base (2) are both made of plastic; the first elastic silicone part (3) and the second elastic silicone part (4) are both made of silicone rubber, and the Shore hardness of the first elastic silicone part (3) and the second elastic silicone part (4) is the same or different.

4. The adjustable automatic constant pressure valve according to claim 1, characterized in that, The number of water guide channels (1-2) and normally open drain channels (2-3) are both eight, and the number of water outlets (2-5) is four.

5. A deep ultraviolet self-cooled constant pressure water sterilizer, characterized in that, Including a constant pressure mechanism, a light source and heat dissipation mechanism (5), and a sterilization and sealing mechanism (6); The constant pressure mechanism employs an automatic constant pressure valve with adjustable gear as described in any one of claims 1 to 4, used for pressure regulation of the water to be sterilized. The light source and heat dissipation mechanism (5) are installed above the constant pressure mechanism to emit deep ultraviolet light and perform self-water cooling of the light source; The sterilization and sealing mechanism (6) is installed around the constant pressure mechanism and the light source and heat dissipation mechanism (5) to sterilize the water to be sterilized and maintain the sealed state of the device.

6. The deep ultraviolet self-cooled constant pressure water sterilizer according to claim 5, characterized in that, The light source and heat dissipation mechanism (5) includes a square groove tube (5-1) with a central through hole, four deep ultraviolet LED lamp panels (5-2) and a quartz transparent tube (5-3). The top and bottom ends of the square groove tube (5-1) are respectively a cylindrical water inlet (5-4) and a water outlet (5-5). The square groove tube (5-1) has lamp panel mounting grooves around its perimeter. The deep ultraviolet LED lamp panels (5-2) are installed in the lamp panel mounting grooves, and the quartz transparent tube (5-3) is sleeved around the square groove tube (5-1).

7. The deep ultraviolet self-cooled constant pressure water sterilizer according to claim 6, characterized in that, The sterilization and sealing mechanism (6) includes a sterilization base (6-1), a top cover (6-2), a shell (6-4), and a water-dividing baffle (6-6). The sterilization base (6-1) is installed around the perimeter of the enclosure (2-1). A step (6-8) is provided on the inner side of the sterilization base (6-1). The water-dividing baffle (6-6) is installed on the step (6-8). Four water outlet grooves (6-7) are provided on the water-dividing baffle (6-6). The water outlet grooves (6-7) are located above the water outlet (2-5) and below the deep ultraviolet LED lamp panel (5-2). A quartz transparent tube (5-3) is installed on the water-dividing baffle (6-1). A second sealing element (6-5) is installed above the quartz transparent tube (5-3) and between the water dividing baffle (6-6). The outer shell (6-4) is cylindrical. The bottom of the outer shell (6-4) is connected to the sterilization base (6-1) and located above the water dividing baffle (6-6). The top cover (6-2) is connected to the top of the outer shell (6-4). The water inlet (5-4) passes through the top cover (6-2) and extends out from the top cover (6-2). A first sealing element (6-3) is installed between the top cover (6-2) and the square groove tube (5-1). The top of the outer shell (6-4) is connected to the water outlet (6-9).

8. The deep ultraviolet self-cooled constant pressure water sterilizer according to claim 7, characterized in that, The top cover (6-2), outer shell (6-4), and sterilization base (6-1) are all provided with prismatic protrusions on their periphery.

9. The deep ultraviolet self-cooled constant pressure water sterilizer according to claim 7, characterized in that, The inner surface of the outer shell (6-4) has several protrusions (6-4-1), which are directly opposite the deep ultraviolet LED lamp panel (5-2); the inner walls of the top cover (6-2) and the sterilization base (6-1) are connected with several buckles (6-10); the top and bottom of the outer shell (6-4) are provided with several L-shaped grooves, which correspond one-to-one with the buckles and lock together.

10. The deep ultraviolet self-cooled constant pressure water sterilizer according to claim 7, characterized in that, The outer shell (6-4) is made of Teflon plastic.

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