A dental irrigator

Abstract

The present invention discloses a dental irrigator, which includes a high-pressure gas generator, a water tank, a valve, a nozzle assembly and a water supply device. The high-pressure gas generator is communicated with the nozzle assembly. The valve is arranged between the high-pressure gas generator and the nozzle assembly. The water supply device is respectively communicated with the water tank and the nozzle assembly to convey the water in the water tank to the nozzle assembly. When using the above-mentioned dental irrigator, the high-pressure gas generator conveys the generated high-pressure gas to the valve, and the water supply device conveys the water in the water tank to the nozzle assembly. After a certain amount of water is stored in the nozzle assembly, the valve is opened, and the high-pressure gas at the valve is instantaneously discharged into the nozzle assembly, mixed with the water in the nozzle assembly to form compressed water vapor and then sprayed out from the nozzle assembly to complete a cleaning action.

Description

Technical Field

[0001] The present invention relates to the technical field of oral care appliances, and particularly to a dental irrigator. Background Art

[0002] As an auxiliary supplementary appliance to a toothbrush, a dental irrigator can clean areas such as interdental spaces and gingival sulci that are not easily cleaned by a toothbrush. The working principle of most existing dental irrigators is to pressurize water through a pressure pump and then spray the pressurized water through a nozzle into the parts of the oral cavity that need to be cleaned, so as to achieve the purpose of dental cleaning.

[0003] The above-mentioned dental irrigators only simply utilize water flow, but the cleaning effect of the water flow is limited. For the same part, it often needs to be rinsed multiple times to be cleaned. Generally, the volume of a dental irrigator is small, and the volume of the water tank for storing water is small, so it is easy to occur that the water stored is used up before the part to be cleaned is not cleaned, resulting in a poor user experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a dental irrigator that can improve the cleaning effect while saving water.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is:

[0006] A dental irrigator includes a high-pressure gas generator, a valve, a water supply device, a water tank, and a nozzle assembly. The high-pressure gas generator is communicated with the nozzle assembly, the valve is arranged between the high-pressure gas generator and the nozzle assembly, and the water supply device is respectively communicated with the water tank and the nozzle assembly to convey the water in the water tank to the nozzle assembly.

[0007] Further, the water supply device includes a box body assembly, a partition member, a rebound element, a first one-way valve, and a second one-way valve. The box body assembly has an accommodation cavity, and the partition member is movably arranged in the accommodation cavity to divide the accommodation cavity into a first accommodation cavity and a second accommodation cavity; the first accommodation cavity is respectively communicated with the high-pressure gas generator and the nozzle assembly, and the valve is arranged between the first accommodation cavity and the nozzle assembly; the second accommodation cavity is respectively communicated with the water tank and the nozzle assembly, the first one-way valve is arranged between the nozzle assembly and the second accommodation cavity, the cut-off direction of the first one-way valve is the direction from the nozzle assembly to the second accommodation cavity, the second one-way valve is arranged between the water tank and the second accommodation cavity, and the cut-off direction of the second one-way valve is the direction from the second accommodation cavity to the water tank; both ends of the rebound element are connected to the partition member and the box body assembly.

[0008] Further, the water supply device includes a box body assembly, a partition member, a rebound element, a first one-way valve, and a second one-way valve. The box body assembly includes a first box body and a second box body. The partition member includes a first partition member and a second partition member. The first partition member is movably disposed in the first box body. The first partition member and the first box body enclose a first accommodation cavity. The second partition member is movably disposed in the second box body. The second partition member and the second box body enclose a second accommodation cavity. The first partition member is connected to the second partition member. The first accommodation cavity is respectively communicated with the high-pressure gas generator and the nozzle assembly. The valve is disposed between the first accommodation cavity and the nozzle assembly. The second accommodation cavity is respectively communicated with the water tank and the nozzle assembly. The first one-way valve is disposed between the nozzle assembly and the second accommodation cavity. The cut-off direction of the first one-way valve is from the nozzle assembly to the second accommodation cavity. The second one-way valve is disposed between the water tank and the second accommodation cavity. The cut-off direction of the second one-way valve is from the second accommodation cavity to the water tank. Both ends of the rebound element are connected to the partition member and the box body assembly.

[0009] Further, the water supply device includes a water pump, and the water pump is respectively communicated with the water tank and the nozzle assembly.

[0010] Further, the dental cleaner includes a circuit board and a power supply. A control circuit is provided on the circuit board. The circuit board is electrically connected to the power supply. The high-pressure gas generator is electrically connected to the circuit board.

[0011] Further, the valve is electrically connected to the circuit board.

[0012] Further, the dental cleaner further includes a pressure sensor. The pressure sensor is communicated with the high-pressure gas generator. The pressure sensor is electrically connected to the circuit board.

[0013] Further, the valve is a regulating valve, a ball valve, a butterfly valve, or a gate valve.

[0014] Further, a third one-way valve is disposed between the valve and the nozzle assembly. The cut-off direction of the third one-way valve is from the nozzle assembly to the valve.

[0015] Further, the nozzle assembly includes a water tank to be flushed and a nozzle. The nozzle is communicated with the water tank to be flushed. The water tank to be flushed is respectively communicated with the high-pressure gas generator and the water supply device.

[0016] Further, a fourth one-way valve is disposed between the water tank to be flushed and the nozzle. The cut-off direction of the fourth one-way valve is from the nozzle to the water tank to be flushed.

[0017] Further, the dental irrigator further includes a housing having a first end and a second end disposed opposite to each other. The high-pressure gas generator, the water supply device, and the valve are all located inside the housing. The nozzle assembly is disposed near the first end, and the water tank is connected to the second end.

[0018] Implementing the embodiments of the present invention will have the following beneficial effects:

[0019] When using the above dental irrigator, the high-pressure gas generator delivers the generated high-pressure gas to the valve, and the water supply device delivers the water in the water tank to the nozzle assembly. After a certain amount of water is stored in the nozzle assembly, the valve opens, and the high-pressure gas at the valve is instantaneously discharged into the nozzle assembly, mixed with the water in the nozzle assembly to form compressed water vapor, and then sprayed out from the nozzle assembly to complete a cleaning action.

[0020] The water flosser of the present invention can mix water and gas to form high-pressure water vapor. Compared with the cleaning method of pure high-pressure water flow, the cleaning method of high-pressure water vapor has a better cleaning effect and can also save water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Among them:

[0023] Figure 1 is a schematic diagram of the principle structure of the dental irrigator in Embodiment 1;

[0024] Figure 2 is a schematic diagram of the principle structure of the dental irrigator in Embodiment 2;

[0025] Figure 3 is a schematic diagram of the overall structure of the dental irrigator;

[0026] Figure 4 is an enlarged schematic diagram of the local position A;

[0027] Reference numerals:

[0028] 1. Water supply device; 11. Housing assembly; 111. First housing; 112. Second housing; 12. Accommodation cavity; 121. First accommodation cavity; 122. Second accommodation cavity; 13. Partition member; 131. First partition member; 132. Second partition member; 14. Rebound element; 15. First connecting pipe; 151. First one-way valve; 16. Second connecting pipe; 161. Second one-way valve; 17. Third connecting pipe; 18. Third one-way valve; 19. Fourth one-way valve; 110. Fourth connecting pipe;

[0029] 2. High-pressure gas generator; 3. Water tank; 4. Nozzle assembly; 41. Nozzle; 42. Water tank to be flushed;

[0030] 5. Valve; 6. Power supply; 7. Circuit board; 8. Housing; 81. First end; 82. Second end. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] Please refer to Figure 1, the present invention provides a dental irrigator, which is applied to the field of oral care. The dental irrigator includes a water supply device 1, a high-pressure gas generator 2, a water tank 3, a nozzle assembly 4 and a valve 5. The water supply device 1 is respectively connected to the water tank 3 and the nozzle assembly 4, and is used to convey the water in the water tank 3 to the nozzle assembly 4. The high-pressure gas generator 2 is connected to the nozzle assembly 4 and is used to convey compressed gas to the nozzle assembly 4. The valve 5 is arranged between the high-pressure gas generator 2 and the nozzle assembly 4 and is used to control whether the compressed gas enters the nozzle assembly 4.

[0035] When using the above dental irrigator, the high-pressure gas generator 2 conveys the generated high-pressure gas to the valve 5, and the water supply device 1 conveys the water in the water tank 3 to the nozzle assembly 4. After a certain amount of water is stored in the nozzle assembly 4, the valve 5 is opened, and the compressed gas at the valve 5 is instantaneously discharged into the nozzle assembly 4, mixed with the water in the nozzle assembly 4 to form high-pressure water vapor, and then sprayed out from the nozzle assembly 4 to clean the user's oral cavity.

[0036] As Figure 1 shown, in the first embodiment, the water supply device 1 includes a box body assembly 11, a partition member 13, a resilient member 14, a first one-way valve 151 and a second one-way valve 161. The box body assembly 11 has a receiving cavity 12. The partition member 13 is movably arranged in the receiving cavity 12 to divide the receiving cavity 12 into a first receiving cavity 121 and a second receiving cavity 122. The first receiving cavity 121 is respectively connected to the high-pressure gas generator 2 and the nozzle assembly 4, and the valve 5 is arranged between the first receiving cavity 121 and the nozzle assembly 4. The second receiving cavity 122 is respectively connected to the water tank 3 and the nozzle assembly 4. The first one-way valve 151 is arranged between the second receiving cavity 122 and the nozzle assembly 4, and the cut-off direction of the first one-way valve 151 is the direction from the nozzle assembly 4 to the second receiving cavity 122. The second one-way valve 161 is arranged between the water tank 3 and the second receiving cavity 122, and the cut-off direction of the second one-way valve 121 is the direction from the second receiving cavity 122 to the water tank 3. The two ends of the resilient member 14 are connected to the partition member 13 and the box body assembly 11 to facilitate providing a restoring force for the partition member 13.

[0037] In this embodiment, when using the dental cleaner, the high-pressure gas generator 2 first pumps gas into the first accommodation chamber 121. The air pressure in the first accommodation chamber 121 gradually increases, thereby driving the partition member 13 to move within the accommodation chamber 12, causing the volume of the first accommodation chamber 121 to gradually increase and the volume of the second accommodation chamber 122 to gradually decrease. As a result, the water in the second accommodation chamber 122 is introduced into the nozzle assembly 4 through the first one-way valve 151. After a certain amount of water is stored in the nozzle assembly 4, the valve 5 is opened, and the compressed gas in the first accommodation chamber 121 is instantaneously discharged into the nozzle assembly 4, mixed with the water in the nozzle assembly 4 to form high-pressure water vapor, and then sprayed out from the nozzle assembly 4 to complete a cleaning operation. When the gas in the first accommodation chamber 121 is discharged, the pressure in the first accommodation chamber 121 decreases, and the partition member 13 gradually resets under the action of the rebound element 14. A negative pressure is formed in the second accommodation chamber 122, and the water in the water tank 3 can flow into the second accommodation chamber 122 through the second one-way valve 161 for use in the next cleaning operation. In addition, in this embodiment, the dental cleaner realizes the water pump principle by only using one air pump, eliminating the water pump structure, and without increasing the occupied space of the dental cleaner while improving the cleaning effect of the dental cleaner.

[0038] In this embodiment, the box body assembly 11 is an integral structure. It can be understood that the box body assembly 11 can also be composed of two interconnected boxes, and the partition member 13 is movably arranged in one of the boxes.

[0039] The water supply device 1 further includes a first connecting pipe 15, and the first connecting pipe 15 is used to connect the second accommodation chamber 122 and the nozzle assembly 4. The first one-way valve 151 is arranged on the first connecting pipe 15 to ensure that water can only flow from the second accommodation chamber 122 to the nozzle assembly 4, preventing the water in the nozzle assembly 4 from flowing back to the second accommodation chamber 122 and ensuring the effect of water and gas mixing in the dental cleaner.

[0040] The water supply device 1 further includes a second connecting pipe 16, and the second connecting pipe 16 is used to connect the second accommodation chamber 122 and the water tank 3. The second one-way valve 161 is arranged on the second connecting pipe 16 to ensure that water can only flow from the water tank 3 into the second accommodation chamber 122, preventing the water in the second accommodation chamber 122 from flowing back to the water tank 3.

[0041] When the high-pressure gas generator 2 inflates the first accommodation chamber 121, the pressure inside the first accommodation chamber 121 increases, causing the partition plate 13 to move in the direction that reduces the volume of the second accommodation chamber 122, thereby increasing the pressure inside the second accommodation chamber 122. At this time, the pressure inside the second accommodation chamber 122 is higher than the pressure inside the nozzle assembly 4 and the water tank 3. The first one-way valve 151 opens, and the second one-way valve 161 closes. The water inside the second accommodation chamber 122 is discharged into the nozzle assembly 4. When the valve 5 is opened, causing the pressure in the first accommodation chamber 121 to decrease, the partition plate 13 moves in the direction that increases the volume of the second accommodation chamber 122 under the action of the rebound element 14. At this time, a negative pressure is formed inside the second accommodation chamber 122, causing the second one-way valve 161 to open and the first one-way valve 151 to close. The water in the water tank 3 enters the second accommodation chamber 122. That is to say, the principle of a water pump is realized through the high-pressure gas generator 2.

[0042] In this embodiment, the water supply device 1 further includes a fourth connecting pipe 110. The fourth connecting pipe 110 is used to connect the high-pressure gas generator 2 and the first accommodation chamber 121, and is used to transport the compressed air of the high-pressure gas generator 2 to the first accommodation chamber 121.

[0043] The water supply device 1 further includes a third connecting pipe 17. The third connecting pipe 17 connects the first accommodation chamber 121 and the valve 5, and the valve 5 is connected to the nozzle assembly 4. During the process of the high-pressure gas generator 2 transporting compressed air to the first accommodation chamber 121, the compressed air also enters the third connecting pipe 17 so that the pressure inside the third connecting pipe 17 is the same as that inside the first accommodation chamber 121. Since the valve 5 is connected to the nozzle assembly 4, when the valve 5 is opened, the compressed gas inside the first accommodation chamber 121 and the third connecting pipe 17 can instantaneously rush into the nozzle assembly 4, mix with the water inside the nozzle assembly 4, and then be sprayed out at a high speed by the nozzle assembly 4 to achieve a better impact effect.

[0044] In this embodiment, the rebound element 14 can be a spring. The rebound element 14 is arranged inside the second accommodation chamber 122. When the air pressure inside the first accommodation chamber 121 increases and causes the partition member 13 to move, the partition member 13 moves in the direction that reduces the volume of the second accommodation chamber 122. At this time, the rebound element 14 is compressed. After the gas inside the first accommodation chamber 121 is discharged, the rebound element 14 is used to provide a restoring force for the partition member 13 to enable the partition member 13 to quickly reset. It can be understood that the rebound element can also be arranged inside the first accommodation chamber 121. When the partition member 13 moves in the direction that reduces the volume of the second accommodation chamber 122, the rebound element 14 is stretched.

[0045] In this embodiment, the separator 13 is a diaphragm, and its material can be rubber, silica gel or thermoplastic elastomer, so as to ensure the isolation between the first accommodating cavity 121 and the second accommodating cavity 122, so that the compressed air in the first accommodating cavity 121 cannot enter the second accommodating cavity 122, and the water in the second accommodating cavity 122 cannot enter the first accommodating cavity 121 either. It can be understood that the separator 13 can be set to a structure with a thicker middle and thinner periphery, and the four peripheral edges are fixed on the inner wall of the box body assembly 11. When the air pressure in the first accommodating cavity 121 increases, the thicker part in the middle of the separator 13 will expand towards the second accommodating cavity 122, making the volume of the second accommodating cavity 122 gradually decrease. When the pressure in the first accommodating cavity 121 decreases, the thicker part in the middle of the separator 13 will gradually reset under the action of the elastic element 14.

[0046] As Figure 2 shown, in the second embodiment, the box body assembly 11 includes a first box body 111 and a second box body 112, and the separator 13 includes a first separator 131 and a second separator 132. The first separator 131 is movably arranged in the first box body 111 and encloses a first accommodating cavity 121 with the first box body 111. The second separator 132 is movably arranged in the second box body 112 and encloses a second accommodating cavity 122 with the second box body 112. The first separator 131 is connected to the second separator 132. In this embodiment, the separator 13 can adopt a piston.

[0047] When using the dental cleaner in this embodiment, the high-pressure gas generator 2 first pumps gas into the first accommodating cavity 121 through the fourth connecting pipe 110. The air pressure in the first accommodating cavity 121 gradually increases, thereby driving the first separator 131 to move in the first accommodating cavity 121, making the volume of the first accommodating cavity 121 gradually increase. At the same time, the second separator 132 moves in the same direction under the drive of the first separator 131, that is, in the direction of the decreasing volume of the second accommodating cavity 122. That is to say, the separator 13 as a whole moves in the direction of the decreasing volume of the second accommodating cavity 122, so that the pressure in the second accommodating cavity 122 increases, and the water in the second accommodating cavity 122 is introduced into the nozzle assembly 4 through the first one-way valve 151; after a certain amount of water is stored in the nozzle assembly 4, the valve 5 is opened, and the compressed gas in the first accommodating cavity 121 will be instantaneously discharged into the nozzle assembly 4, mixed with the water in the nozzle assembly 4 to form high-pressure water vapor and then sprayed out from the nozzle assembly 4 at high speed. When the gas in the first accommodating cavity 121 is discharged, the pressure in the first accommodating cavity 121 will decrease, and the separator 13 will gradually reset under the action of the elastic element 14, and a negative pressure is formed in the second accommodating cavity 122, and the water in the water tank 3 can flow into the second accommodating cavity through the second one-way valve 161. In this embodiment, the water pump principle is also realized only by using one high-pressure gas generator 2.

[0048] Specifically, in this embodiment, a first ventilation opening is provided on the first box body 111. The first ventilation opening is provided on the side wall of the first box body 111 opposite to the first accommodation cavity 121. A second ventilation opening is provided on the second box body 112. The second ventilation opening is provided on the side wall of the second box body 112 opposite to the second accommodation cavity 122. In this way, it neither affects the sealing performance of the first accommodation cavity 121 and the second accommodation cavity 122, nor can it ensure that when the high-pressure gas generator 2 pumps compressed air into the first accommodation cavity 121, the first partition member 131 can move well in the first box body 111, and when the rebound element 14 drives the partition member 13 to reset, the second partition member 132 can move well in the second box body 112.

[0049] In Embodiment 3, the water supply device 1 includes a water pump. The water pump is respectively communicated with the water tank 3 and the nozzle assembly 4. In this embodiment, the first connecting pipe 15 is used to communicate the water tank 3 and the water pump, and the second connecting pipe 16 is used to communicate the water pump and the nozzle assembly 4. The third connecting pipe 17 is used to communicate the high-pressure gas generator and the valve 5.

[0050] When using the dental cleaner in this embodiment, first, the high-pressure gas generator 2 is used to transport compressed gas to the valve 5. At the same time, the water pump pumps the water in the water tank 3 into the nozzle assembly 4. When the water in the nozzle assembly 4 reaches a certain amount, the valve 5 is opened, and the compressed gas at the valve 5 will be instantaneously discharged into the nozzle assembly 4, mixed with the water in the nozzle assembly 4 to form high-pressure water vapor and then sprayed out from the nozzle assembly 4 at high speed. In this example, the water-air mixing effect is achieved by using a water pump and a high-pressure gas generator, and the structure is simple.

[0051] The dental cleaner further includes a power supply 6 and a circuit board 7. A control circuit is provided on the circuit board 7. The high-pressure gas generator 2 and the valve 5 are both electrically connected to the circuit board 7.

[0052] The valve 5 is used to control the on-off of the compressed gas, and can be a regulating valve, a ball valve, a butterfly valve or a gate valve. Specifically, it can be set as a normally closed solenoid valve or a pneumatic motor valve.

[0053] Further, the dental irrigator further includes a pressure sensor (not shown in the figure), which is electrically connected to the circuit board 7 and communicates with the high-pressure gas generator 2, and is used to detect the air pressure of the compressed gas generated by the high-pressure gas generator 2. The pressure sensor transmits the pressure signal to the circuit board 7. When the air pressure of the compressed gas generated by the high-pressure gas generator 2 reaches the first preset value, the circuit board 7 controls the high-pressure gas generator 2 to close and controls the valve 5 to open, so as to discharge the compressed air into the nozzle assembly 4; when the air pressure of the compressed gas generated by the high-pressure gas generator 2 reaches the second preset value, the circuit board 7 controls the valve 5 to close and controls the high-pressure gas generator 2 to open, so that the high-pressure gas generator 2 conveys compressed air to the valve 5 for use in the next cleaning operation. In particular, the first preset value is higher than the second preset value, and the specific value is set according to the cleaning degree.

[0054] A third one-way valve 18 is provided between the valve 5 and the nozzle assembly 4. The cut-off direction of the third one-way valve 18 is from the nozzle assembly 4 to the valve 5, so as to prevent the water in the nozzle assembly 4 from flowing back to the valve 5 and affecting the service life of the valve 5.

[0055] The nozzle assembly 4 includes a nozzle 41 and a water tank to be flushed 42. The water tank to be flushed 42 is used to store water and for mixing compressed air and water. The water tank to be flushed 42 is respectively communicated with the high-pressure gas generator 2 and the water supply device 1. The nozzle 41 is communicated with the water tank to be flushed 42, and the nozzle 41 is used to spray out the high-pressure water vapor formed by mixing compressed air and water. A fourth one-way valve 19 is provided between the nozzle 41 and the water tank to be flushed 42. The cut-off direction of the fourth one-way valve 19 is from the nozzle 41 to the water tank to be flushed 42, so as to prevent the water in the water tank to be flushed 42 from flowing out along the nozzle 41 when the dental irrigator is not working.

[0056] As Figure 3 and Figure 4 As shown, the dental irrigator includes a housing 8. The housing 8 has a first end 81 and a second end 82 which are oppositely arranged. The water supply device 1, the high-pressure gas generator 2, the water tank 3, the valve 5, the power supply 6 and the circuit board 7 are all located inside the housing 8. The nozzle assembly 4 is arranged close to the first end 81. The nozzle 41 is connected to the first end 81, and the water tank to be flushed 42 is arranged close to the first end 81, so that the nozzle 41 can be directly communicated with the water tank to be flushed 42 without occupying a large space inside the housing 8. The water tank 3 is connected to the second end 82. When the water stored in the water tank 3 is used up, the water tank 3 can be directly removed and water can be added to the water tank 3. The water supply device 1, the high-pressure gas generator 2, the power supply 6 and the circuit board 7 are all arranged between the water tank 3 and the water tank to be flushed 42, so that the various components of the dental irrigator are arranged compactly, ensuring that the dental irrigator is small in size and convenient to carry.

[0057] In this embodiment, the first connecting pipe 15, the second connecting pipe 16, the third connecting pipe 17, and the fourth connecting pipe 110 are all flexible hoses. The flexible hoses occupy a small volume and have good flexibility. The positions of the two components connected by the flexible hoses can be arranged more flexibly within the housing 8, and it will not affect the flow effect of gas and water, which can ensure the use effect of the dental cleaner while making the structure of the dental cleaner more compact. It can be understood that the first connecting pipe 15, the second connecting pipe 16, the third connecting pipe 17, and the fourth connecting pipe 110 can also be set as rigid connecting pipes.

[0058] In summary, a dental cleaner provided by the present invention can mix water and gas to form high-pressure water and gas. Compared with the cleaning method of pure high-pressure water flow, the cleaning method of high-pressure water and gas has a better cleaning effect and can also save water.

[0059] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A dental irrigator, characterized in that, It includes a high-pressure gas generator, a valve, a water supply device, a water tank, and a nozzle assembly. The high-pressure gas generator is in communication with the nozzle assembly. The valve is disposed between the high-pressure gas generator and the nozzle assembly. The water supply device is respectively in communication with the water tank and the nozzle assembly to convey the water in the water tank to the nozzle assembly. The water supply device includes a box body assembly, a partition member, a rebound element, a first check valve, and a second check valve. The box body assembly has a receiving cavity. The partition member is movably disposed in the receiving cavity to divide the receiving cavity into a first receiving cavity and a second receiving cavity. The first receiving cavity is respectively in communication with the high-pressure gas generator and the nozzle assembly. The valve is disposed between the first receiving cavity and the nozzle assembly. The second receiving cavity is respectively in communication with the water tank and the nozzle assembly. The first check valve is disposed between the nozzle assembly and the second receiving cavity. The cut-off direction of the first check valve is from the nozzle assembly to the second receiving cavity. The second check valve is disposed between the water tank and the second receiving cavity. The cut-off direction of the second check valve is from the second receiving cavity to the water tank. Both ends of the rebound element are connected to the partition member and the box body assembly. Alternatively, the water supply device includes a box body assembly, a partition member, a rebound element, a first check valve, and a second check valve. The box body assembly includes a first box body and a second box body. The partition member includes a first partition member and a second partition member. The first partition member is movably disposed in the first box body. The first partition member and the first box body enclose a first receiving cavity. The second partition member is movably disposed in the second box body. The second partition member and the second box body enclose a second receiving cavity. The first partition member is connected to the second partition member. The first receiving cavity is respectively in communication with the high-pressure gas generator and the nozzle assembly. The valve is disposed between the first receiving cavity and the nozzle assembly. The second receiving cavity is respectively in communication with the water tank and the nozzle assembly. The first check valve is disposed between the nozzle assembly and the second receiving cavity. The cut-off direction of the first check valve is from the nozzle assembly to the second receiving cavity. The second check valve is disposed between the water tank and the second receiving cavity. The cut-off direction of the second check valve is from the second receiving cavity to the water tank. Both ends of the rebound element are connected to the partition member and the box body assembly. It includes a circuit board and a power supply. A control circuit is provided on the circuit board. The circuit board is electrically connected to the power supply. The high-pressure gas generator is electrically connected to the circuit board.

2. The dental irrigator according to claim 1, characterized in that, The valve is electrically connected to the circuit board.

3. The dental irrigator according to claim 1, characterized in that, It further includes a pressure sensor. The pressure sensor is in communication with the high-pressure gas generator and is electrically connected to the circuit board.

4. The dental irrigator according to claim 1, characterized in that, The valve is a regulating valve.

5. The dental irrigator according to claim 1, wherein, The valve is a ball valve, a butterfly valve, or a gate valve.

6. The dental irrigator according to claim 1, characterized in that, A third check valve is disposed between the valve and the nozzle assembly. The cut-off direction of the third check valve is from the nozzle assembly to the valve.

7. The dental irrigator according to claim 1, wherein, The nozzle assembly includes a water tank to be flushed and a nozzle. The nozzle is in communication with the water tank to be flushed, and the water tank to be flushed is respectively in communication with the high-pressure gas generator and the water supply device.

8. The dental irrigator according to claim 7, wherein, A fourth one-way valve is provided between the water tank to be flushed and the nozzle, and the cut-off direction of the fourth one-way valve is the direction flowing from the nozzle to the water tank to be flushed.

9. The dental irrigator according to claim 1, wherein, It further includes a housing having a first end portion and a second end portion arranged oppositely. The high-pressure gas generator, the water supply device and the valve are all located inside the housing. The nozzle assembly is arranged close to the first end portion, and the water tank is connected to the second end portion.

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