Water pick with one-way sealing device

Abstract

The oral irrigator with the one-way sealing device comprises a shell and a second one-way valve, a water storage cavity and a liquid outlet communicated with the water storage cavity are formed in the shell, the liquid outlet is formed in the bottom of the water storage cavity, the shell extends downwards along the edge of the liquid outlet to form a first abutting block, a protruding second abutting block is arranged in the shell, and the first abutting block is connected with the second abutting block. The second abutting block is arranged towards the first abutting block; the second one-way valve is provided with an abutting table, the first abutting block abuts against the upper surface of the abutting table, the second abutting block abuts against the lower surface of the abutting table, so that the second one-way valve is limited between the first abutting block and the second abutting block, and the second one-way valve is used for allowing the oral cavity cleaning liquid to flow into the water storage cavity along the liquid outlet in a one-way mode. Through the arrangement of the structure, during use, the second one-way valve enables oral cavity cleaning liquid to flow into the water storage cavity along the mounting channel and the liquid outlet in a one-way mode, and liquid in the water storage cavity is prevented from flowing back; the first abutting block and the second abutting block are attached to the surface of the abutting table in an interference fit mode, the sealing performance of the product is improved, and water leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning, in particular to a dental irrigator with a one-way sealing device. Background Art

[0002] As an oral cleaning tool, a dental irrigator mainly uses the way of water flow impact to clean teeth and dental floss, especially it can achieve effective cleaning for the part of dental floss. Therefore, it is especially favored by people. In order to obtain better cleaning effect and ensure oral safety, existing dental irrigators generally use oral cleaning solutions, etc. Among them, the products using capsules to supplement oral cleaning solutions are convenient to use and can supplement oral cleaning solutions more continuously and conveniently.

[0003] When the current dental irrigator is in use, in addition to water, sometimes a second component needs to be added, such as whitening agent, mouthwash, oral cleaning solution, etc., to improve the cleaning effect on the oral cavity. Most of the second components are liquid components. When injecting the liquid component into the dental irrigator, it is necessary to connect the oral cleaning solution capsule with the liquid injection port of the water tank of the dental irrigator. Therefore, the sealing performance at the liquid injection port. Most of the existing products often cause water leakage in the water tank due to poor sealing here, seriously affecting the user experience. It will also cause external dust and other impurities to enter the water tank due to poor sealing, resulting in pollution problems for the water in the water tank and affecting the oral safety of users.

[0004] For this reason, the utility model provides a dental irrigator with a one-way sealing device, which can effectively solve the above problems, and has a simple structure, convenient use and good sealing effect. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a dental irrigator with a one-way sealing device, which has a simple structure, convenient use and good sealing effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A dental irrigator with a one-way sealing device, comprising:

[0008] A housing, a water storage cavity is arranged in the housing, and a liquid outlet communicated with the water storage cavity is arranged at the bottom of the water storage cavity. The housing extends downward along the edge of the liquid outlet to form a first abutting block, and a protruding second abutting block is arranged in the housing, and the second abutting block is arranged towards the first abutting block;

[0009] A second one-way valve, the second one-way valve is provided with an abutting platform, the first abutting block abuts against the upper surface of the abutting platform, and the second abutting block abuts against the lower surface of the abutting platform to limit the second one-way valve between the first abutting block and the second abutting block. The second one-way valve is used to allow the oral cleaning liquid to flow into the water storage cavity unidirectionally along the liquid outlet.

[0010] As an improvement of the present utility model, the second abutting block is provided with an insertion slot, the second one-way valve is provided with an insertion block, the insertion block extends downward along the lower surface of the abutting platform, and the insertion block is inserted into the insertion slot.

[0011] As an improvement of the present utility model, the insertion block is provided with a limiting platform, and the end face of the inner side wall of the insertion slot abuts against the limiting platform.

[0012] As an improvement of the present utility model, it further includes an oral cleaning liquid capsule. The oral cleaning liquid capsule is provided with an oral cleaning liquid containing cavity. The oral cleaning liquid capsule is arranged at the bottom of the housing. The water outlet of the oral cleaning liquid capsule is inserted into the bottom of the second one-way valve. The oral cleaning liquid containing cavity communicates with the liquid outlet. The oral cleaning liquid capsule is used to drive the oral cleaning liquid in the oral cleaning liquid containing cavity to pass through the liquid outlet and enter the water storage cavity under the action of an external force. The axis where the force application direction of the oral cleaning liquid capsule is located intersects or projects and intersects with the axis in the vertical direction of the housing.

[0013] As an improvement of the present utility model, it further includes a pumping assembly. The pumping assembly is arranged in the housing. The liquid suction port of the pumping assembly extends to be close to the liquid outlet at the bottom of the water storage cavity. The pumping assembly is used to suck the liquid and spray the liquid along the nozzle.

[0014] As an improvement of the present utility model, the oral cleaning liquid capsule includes a capsule housing assembly, a piston assembly and a connecting housing. The capsule housing assembly is provided with an oral cleaning liquid containing cavity. The capsule housing assembly is further provided with a piston cavity. The piston cavity communicates with the oral cleaning liquid containing cavity and is used to communicate with the liquid outlet of the dental irrigator. The piston assembly is slidably arranged in the piston cavity. The connecting housing is provided with a sliding cavity. The capsule housing assembly is slidably arranged in the sliding cavity. When the capsule housing assembly slides inward along the sliding cavity under the action of an external force, the piston assembly slides towards the piston cavity to spray the oral cleaning liquid in the piston cavity along the liquid outlet of the dental irrigator. It further includes a movable part. The movable part is movably arranged in the capsule housing assembly. An oral cleaning liquid containing cavity is formed between the inner wall of the movable part and the inner wall of the capsule housing assembly. The movable part moves in the direction towards the piston assembly under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid containing cavity.

[0015] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a first elastic member, a first end of the first elastic member abuts against the capsule housing assembly, and a second end of the first elastic member abuts against the inner wall of the sliding cavity.

[0016] As an improvement of the present utility model, the connecting housing is provided with a connecting channel, a first end of the connecting channel communicates with the piston cavity, and a second end of the connecting channel communicates with the liquid outlet.

[0017] As an improvement of the present utility model, the piston assembly includes a fixing rod and a piston rod, the fixing rod abuts against the housing and is inserted into the piston cavity, and the piston rod is slidably inserted into the piston cavity.

[0018] As an improvement of the present utility model, the fixing rod is provided with a fixing rod channel, the piston rod is provided with a piston rod channel, the piston rod communicates with the piston cavity, and the piston rod channel, the connecting channel and the liquid outlet are communicated in sequence.

[0019] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a first one-way valve, the capsule housing assembly is provided with a first communication hole, the first communication hole allows the oral cleaning liquid containing cavity to communicate with the piston cavity, and the first one-way valve is arranged in the first communication hole, and the first one-way valve is used to allow the oral cleaning liquid to flow unidirectionally from the oral cleaning liquid containing cavity into the piston cavity.

[0020] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a sealing member, the piston rod is further provided with a second through hole, the second through hole allows the piston cavity to communicate with the piston rod channel, and the sealing member is slidably sleeved on the piston rod and covers or opens the second through hole.

[0021] As an improvement of the present utility model, the capsule housing assembly is further provided with an air guide hole, an air pressure cavity is formed between the inner wall of the movable member and the inner wall of the capsule housing assembly, and the air guide hole is used to communicate the air pressure cavity and the external atmosphere.

[0022] As an improvement of the present utility model, the bottom of the housing is provided with a capsule accommodating cavity, and the oral cleaning liquid capsule is detachably inserted into the capsule accommodating cavity.

[0023] As an improvement of the present utility model, the surface of the oral cleaning liquid capsule is provided with a card slot, the housing is provided with a clamping assembly, and a clamping end of the clamping assembly passes through the inner wall of the capsule accommodating cavity of the housing and is detachably clamped in the card slot.

[0024] As an improvement of the present utility model, the clamping assembly includes a clamping member, a pressing member and a second elastic member. The housing is provided with a key hole, the pressing member is arranged in the key hole, the first end of the second elastic member abuts against the pressing member, the second end of the second elastic member abuts against the clamping member, the elasticity of the second elastic member drives the clamping member to be inserted into the clamping groove, and the pressing member is used to drive the clamping member to detach from the clamping groove under the action of an external pressing force.

[0025] As an improvement of the present utility model, the clamping assembly further includes a transmission member. The first end of the transmission member is rotatably connected to the pressing member, the middle part of the transmission member is rotatably connected to the housing, and the second end of the transmission member is rotatably connected to the clamping member.

[0026] As an improvement of the present utility model, there are two clamping assemblies, and the two clamping assemblies are arranged in the housing and are respectively located on both sides of the capsule accommodating cavity.

[0027] As an improvement of the present utility model, it further includes a detachment assembly. The detachment assembly includes a third elastic member and a detachment convex block. An opening is provided in the upper part of the inner wall of the capsule accommodating cavity. The first end of the third elastic member abuts against the housing, the second end of the third elastic member abuts against the detachment convex block, and the abutting end of the detachment convex block passes through the opening and abuts against the upper surface of the oral cleaning liquid capsule.

[0028] As an improvement of the present utility model, the third elastic member includes two springs. The housing is provided with two spring accommodating grooves. The two springs are respectively inserted into the two spring accommodating grooves. The second ends of the two springs respectively abut against both ends of the detachment convex block and are symmetrically arranged along the axis of the capsule accommodating cavity.

[0029] As an improvement of the present utility model, the housing includes an upper housing and a bottom shell. The bottom shell is detachably connected to the upper housing. A water storage cavity is formed between the upper housing and the bottom shell, and the capsule accommodating cavity is arranged in the bottom shell.

[0030] As an improvement of the present utility model, it further includes a first sealing ring. The upper edge of the bottom shell is provided with a first sealing groove. The first sealing ring is inserted into the first sealing groove, and the outer surface of the first sealing ring abuts against the inner wall of the upper shell.

[0031] As an improvement of the present utility model, it further includes a locking assembly. The locking assembly includes a locking member and a fourth elastic member. The first end of the fourth elastic member abuts against the bottom shell, the second end of the fourth elastic member abuts against the locking member, and the locking member locks the upper housing.

[0032] As an improvement of the present utility model, the upper housing is provided with a locking groove, and the locking portion of the locking member is detachably clamped in the locking groove.

[0033] As an improvement of the present invention, the bottom shell is provided with a slot, and the detaching portion of the locking member passes through the slot, and the detaching portion of the locking member is used for being pressed by a user to detach the locking portion of the locking member from the locking slot.

[0034] As an improvement of the present utility model, the upper surface of the bottom shell protrudes upward near the liquid outlet to form a protrusion, and the liquid outlet is arranged at the top of the protrusion.

[0035] As an improvement of the present invention, the upper surface of the bottom shell is inclined, a suction space is formed between the protrusion and the lowest side of the upper surface of the bottom shell, and the suction port of the pumping assembly extends the suction space.

[0036] As an improvement of the present invention, a transparent observation window is provided at the bottom of the side wall of the upper shell, and the observation window is used to allow a user to observe the position of the liquid level in the water storage chamber.

[0037] As an improvement of the present utility model, the observation window comprises a front observation window unit and a rear observation window unit, and the front observation window unit and the rear observation window unit are respectively arranged on the front and rear sides of the upper shell.

[0038] As an improvement of the utility model, it further comprises a liquid filling cover, the upper shell is provided with a liquid filling port, the liquid filling port is connected to the water storage cavity, and the liquid filling cover is detachably covered on the liquid filling port.

[0039] As an improvement of the utility model, the upper shell is provided with a shaft hole near the liquid filling port, and the connecting end of the liquid filling cover is provided with a rotating shaft, and the rotating shaft is rotatably inserted in the shaft hole so that the liquid filling cover can be detachably covered on the liquid filling port.

[0040] As an improvement of the utility model, it also includes a second sealing ring. The liquid filling cover is provided with a protruding sealing block on one side facing the upper shell body, and the sealing block is provided with a second sealing groove. The second sealing ring is inserted into the second sealing groove, and the outer surface of the second sealing ring abuts against the edge of the liquid filling port.

[0041] As an improvement of the present utility model, the upper shell is recessed inwards near the liquid injection port to form a receiving groove, and when the liquid injection cover is closed on the liquid injection port, the liquid injection cover is basically received in the receiving groove.

[0042] As an improvement of the present invention, the free end of the liquid filling cover is bent outward to form a toggle portion, and when the liquid filling cover is closed on the liquid filling port, a gap exists between the toggle portion and the containing groove.

[0043] In this embodiment, a first buckle is provided on the liquid injection cover facing the sealing block, a second buckle is provided on the edge of the liquid injection port, and the first buckle is snap-fitted to the second buckle.

[0044] As an improvement of the present utility model, it further includes a control board which is arranged inside the upper shell. The pumping assembly is electrically connected to the control board. The upper shell is provided with a charging port, and the charging terminals inside the charging port are electrically connected to the control board.

[0045] As an improvement of the present utility model, it further includes a charging cover which is detachably covered on the charging port.

[0046] As an improvement of the present utility model, an insertion slot is provided at the edge of the upper shell near the charging port for the user to insert a finger.

[0047] As an improvement of the present utility model, a friction grip part is provided on the surface of the upper shell, and the friction grip part is provided with friction lines.

[0048] As an improvement of the present utility model, the upper shell is narrow at the top and wide at the bottom, and the friction grip part is arranged on the upper part of the upper shell.

[0049] As an improvement of the present utility model, the bottom shell is provided with a water leakage groove which communicates with the internal space of the bottom shell.

[0050] The beneficial effects of the present utility model are as follows: Through the setting of the above structure, during use, the second one-way valve enables the oral cleaning liquid to flow only unidirectionally along the installation channel and the liquid outlet into the water storage cavity, preventing the liquid in the water storage cavity from flowing back into the oral cleaning liquid capsule, ensuring the concentration of the oral cleaning liquid in the oral cleaning liquid capsule, and ensuring the cleaning effectiveness of the oral cleaning liquid; inserting the installation block into the installation groove can stably connect the second one-way valve to the side wall of the installation channel, improving the stability of the product. At the same time, it can also enhance the sealing performance of the product to prevent leakage of the oral cleaning liquid, etc.; and the abutting part abuts against the lower surface of the second one-way valve, enabling the installation groove to fit more closely to the lower surface of the installation block, further enhancing the sealing performance of the product to prevent water leakage. Description of the Drawings

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. The following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0053] Figure 1It is a schematic diagram of the overall structure of the present utility model;

[0054] Figure 2 It is the first schematic diagram of the disassembled state of the oral cleaning liquid capsule of the present utility model;

[0055] Figure 3 It is the first schematic diagram of the disassembled state of the oral cleaning liquid capsule of the present utility model;

[0056] Figure 4 It is a schematic diagram of the disassembled state of the upper shell and the bottom shell of the present utility model;

[0057] Figure 5 It is a schematic diagram of the open state of the liquid injection cover and the charging cover of the present utility model;

[0058] Figure 6 It is a schematic diagram of the sectional structure of the present utility model;

[0059] Figure 7 It is Figure 6 An enlarged view of area A;

[0060] Figure 8 It is Figure 6 An enlarged view of area B;

[0061] Figure 9 It is Figure 6 An enlarged view of area C;

[0062] Figure 10 It is a sectional view of the oral cleaning liquid capsule in the pressed state of the present utility model;

[0063] Figure 11 It is Figure 10 An enlarged view of area D;

[0064] Figure 12 It is a sectional view of the oral cleaning liquid capsule in the released state of the present utility model;

[0065] Figure 13 It is a schematic diagram of the structure of the lock assembly of the present utility model;

[0066] Figure 14 It is a schematic diagram of the structure of the second one-way valve of the present utility model;

[0067] Figure 15 It is the first exploded structure diagram of the bottom shell and the oral cleaning liquid capsule of the present utility model;

[0068] Figure 16 It is the second exploded structure diagram of the bottom shell and the oral cleaning liquid capsule of the present utility model;

[0069] Figure 17 It is Figure 16Enlarged view at location E of the circle;

[0070] Figure 18 It is a partial schematic diagram of the present utility model. Specific implementation manner

[0071] Referring to Figures 1 to 18 , a dental irrigator with a one-way sealing device, comprising:

[0072] A housing 100, within which a water storage cavity 101 and a liquid outlet 102 communicating with the water storage cavity 101 are provided. The liquid outlet 102 is arranged at the bottom of the water storage cavity 101. The housing 100 extends downward along the edge of the liquid outlet 102 to form a first abutting block 106. A protruding second abutting block 127 is provided within the housing 100, and the second abutting block 127 is arranged facing the first abutting block 106;

[0073] A second one-way valve 700, which is provided with an abutting platform 701. The first abutting block 106 abuts on the upper surface of the abutting platform 701, and the second abutting block 127 abuts on the lower surface of the abutting platform 701, so as to limit the second one-way valve 700 between the first abutting block 106 and the second abutting block 127. The second one-way valve 700 is used to allow the oral cleaning liquid to flow unidirectionally into the water storage cavity 101 along the liquid outlet 102.

[0074] Through the above structural arrangement, during use, the second one-way valve 700 enables the oral cleaning liquid to only flow unidirectionally along the installation channel 106 and the liquid outlet 102 into the water storage cavity 101, preventing the liquid in the water storage cavity 101 from flowing back into the oral cleaning liquid capsule 300, ensuring the concentration of the oral cleaning liquid in the oral cleaning liquid capsule 300, and ensuring the cleaning efficacy of the oral cleaning liquid; abutting the first abutting block 106 on the upper surface of the abutting platform 701 and the second abutting block 127 on the lower surface of the abutting platform 701 can effectively fix the second one-way valve 700, improve the stability of the product, and at the same time, can also enhance the sealing performance of the product to prevent leakage of the oral cleaning liquid, etc.; among them, the first abutting block 106 and the second abutting block 127 are in interference fit with the surface of the abutting platform 701, further enhancing the sealing performance of the product to prevent water leakage.

[0075] In this embodiment, the second abutting block 127 is provided with an insertion groove 126, the second one-way valve 700 is provided with an insertion block 702, the insertion block 702 extends downward along the lower surface of the abutting platform 701, and the insertion block 702 is inserted into the insertion groove 126. Through the setting of the above structure, during use, the insertion block 702 is inserted into the insertion groove 126. At this time, the outer surface of the insertion block 702 fits against the inner wall surface of the insertion groove 126, which can effectively limit the insertion block 702, thereby defining the installation position of the second one-way valve 700, making the product structure more stable. At the same time, the outer surface of the insertion block 702 fits against the inner wall surface of the insertion groove 126, which can further enhance the sealing performance of the product.

[0076] In this embodiment, the insertion block 702 is provided with a limiting platform 703, and the end surface of the inner side wall of the insertion groove 126 abuts against the limiting platform 703. Through the setting of the above structure, during use, the insertion block 702 is inserted along the insertion groove 126 until the end surface of the inner side wall of the insertion groove 126 abuts against the limiting platform 703 to reach the installation position. The limiting platform 703 can effectively limit the insertion depth, making the product connection more stable; at the same time, the end surface of the inner side wall of the insertion groove 126 can also support the limiting platform, so that the inner side of the lower surface of the first abutting block 106 can fit against the upper surface of the abutting platform 701 with an interference fit, further improving the sealing performance and stability of the product.

[0077] In this embodiment, an oral cleaning liquid capsule 300 is further included. An oral cleaning liquid containing cavity 301 is provided in the oral cleaning liquid capsule 300. The oral cleaning liquid capsule 300 is disposed at the bottom of the housing 100. The water outlet of the oral cleaning liquid capsule 300 is inserted into the bottom of the second one-way valve 700. The oral cleaning liquid containing cavity 301 communicates with the liquid outlet 102. The oral cleaning liquid capsule 300 is used to drive the oral cleaning liquid in the oral cleaning liquid containing cavity 301 to pass through the liquid outlet 102 and enter the water storage cavity 101 under the action of an external force. The axis where the force direction of the oral cleaning liquid capsule 300 is located intersects or projects and intersects with the axis in the vertical direction of the housing 100. Through the setting of the above structure, when in use, the user holds the housing 100 and can simultaneously press the oral cleaning liquid capsule 300 at the bottom of the housing 100. The oral cleaning liquid capsule 300 is stressed, and the oral cleaning liquid therein is injected to the bottom of the water storage cavity 101, so that the cleaning components in the oral cleaning liquid are incorporated into the water in the water storage cavity 101 to enhance the cleaning effect; in order to ensure the stability of the center of gravity of the dental irrigator product, it is usually set with a narrow upper part and a wide lower part. The oral cleaning liquid capsule 300 is disposed at the bottom of the housing 100. Generally, the bottom of the housing 100 refers to the part below the midline in the vertical direction of the housing 100, which allows the use of a larger volume of the oral cleaning liquid capsule 300, thereby prolonging the use time of the product, reducing the frequency of replacing the oral cleaning liquid capsule 300, and being convenient to use; and since the axis where the force direction of the oral cleaning liquid capsule 300 is located intersects or projects and intersects with the axis in the vertical direction of the housing 100, no greater holding force needs to be provided when pressing the oral cleaning liquid capsule 300, and the user is more labor-saving and convenient when pressing the oral cleaning liquid capsule 300. The user can hold the product with one hand and press the oral cleaning liquid capsule 300 with the palm; and, the water outlet of the oral cleaning liquid capsule 300 is inserted into the bottom of the second one-way valve 700, and can abut against the second one-way valve 700, so that the second one-way valve closely fits against the abutting portion 127, further enhancing the sealing performance.

[0078] In this embodiment, a pumping assembly 200 is further included. The pumping assembly 200 is disposed in the housing 100. The liquid suction port 201 of the pumping assembly 200 extends to a position near the liquid outlet 102 at the bottom of the water storage cavity 101. The pumping assembly 200 is used to suck the liquid and spray the liquid along the nozzle 210. Through the setting of the above structure, when the pumping assembly 200 works, the liquid suction port 201 of the pumping assembly 200 extends to the bottom of the water storage cavity 101, and can suck the liquid with a high concentration of oral cleaning liquid at the bottom of the water storage cavity 101, and the cleaning effect of the product is better; and the liquid can be completely sucked out to prevent liquid accumulation.

[0079] In this embodiment, the oral cleaning liquid capsule 300 includes a capsule housing assembly 310, a piston assembly 330, and a connection housing 340. An oral cleaning liquid containing cavity 301 is provided in the capsule housing assembly 310. The capsule housing assembly 310 further has a piston cavity 311. The piston cavity 311 communicates with the oral cleaning liquid containing cavity 301 and is used to communicate with the liquid outlet 102 of the oral irrigator. The piston assembly 330 is slidably disposed in the piston cavity 311. The connection housing 340 has a sliding cavity 341, and the capsule housing assembly 310 is slidably disposed in the sliding cavity 341. When the capsule housing assembly 310 slides inward along the sliding cavity 341 under an external force, the piston assembly 330 slides toward the inside of the piston cavity 311 to spray the oral cleaning liquid in the piston cavity 311 out along the liquid outlet 102 of the oral irrigator. It further includes a movable member 320. The movable member 320 is movably disposed in the capsule housing assembly 310. An oral cleaning liquid containing cavity 301 is formed between the inner wall of the movable member 320 and the inner wall of the capsule housing assembly 310. The movable member 320 moves in the direction toward the piston assembly 330 under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid containing cavity 301. With the above structure, during use, when the capsule housing assembly 310 is pressed, the capsule housing assembly 310 and the movable member 320 move toward the inside of the sliding cavity 341 along the force application direction. At this time, the piston assembly 330 slides toward the inside of the piston cavity 311, the pressure in the oral cleaning liquid containing cavity 301 increases, and the oral cleaning liquid flows from the oral cleaning liquid containing cavity 301 into the piston cavity 311 and then into the water storage cavity 101 along the liquid outlet 102, and the operation is simple. When the capsule housing assembly 310 resets, the piston assembly 330 slides in the direction away from the piston cavity 311, the pressure in the oral cleaning liquid containing cavity 301 becomes smaller, and the atmospheric pressure drives the movable member 320 to move inward along the axis direction of the oral cleaning liquid capsule 300 to keep the pressure in the oral cleaning liquid containing cavity 301 stable.

[0080] In this embodiment, the oral cleaning liquid capsule 300 further includes a first elastic member 350. The first end of the first elastic member 350 abuts against the capsule housing assembly 310, and the second end of the first elastic member 350 abuts against the inner wall of the sliding cavity 341. With the above structure, during use, when the capsule housing assembly 310 is pressed, the capsule housing assembly 310 slides in the sliding cavity 341 of the connecting housing 340, so that the piston assembly 330 slides toward the piston cavity 311. At this time, the first elastic member 350 is deformed by the force, and the oral cleaning liquid in the oral cleaning liquid containing cavity 301 flows out; when the user releases the capsule housing assembly 310, the first elastic member 350 resets, driving the capsule housing assembly 310 back to the initial position. Under the action of atmospheric pressure, the movable member 320 moves inward along the axis direction of the oral cleaning liquid capsule 300; the sliding cavity 341 of the connecting housing 340 can make the capsule housing assembly 310 reciprocate more smoothly, making it more labor-saving and convenient for the user to operate. Moreover, using the connecting housing 340 can better connect the oral cleaning liquid capsule 300 with the housing 100 and protect each component therein; while the first elastic member 350 can realize the reset of the capsule housing assembly 310, making the operation simpler.

[0081] In this embodiment, the connecting housing 340 is provided with a connecting channel 342. The first end of the connecting channel 342 communicates with the piston cavity 311, and the second end of the connecting channel 342 communicates with the liquid outlet 102. With the above structure, during use, when the capsule housing assembly 310 is pressed, the piston assembly 330 slides toward the piston cavity 311, the pressure in the oral cleaning liquid containing cavity 301 increases, the oral cleaning liquid flows from the oral cleaning liquid containing cavity 301 into the piston cavity 311, passes through the connecting channel 342, and then flows into the water storage cavity 101 along the liquid outlet 102. The operation is simple, the flow channel of the oral cleaning liquid is unobstructed, and the product structure is stable.

[0082] In this embodiment, the piston assembly 330 includes a fixed rod 331 and a piston rod 332. The fixed rod 331 abuts against the housing 100 and is inserted into the piston chamber 311, and the piston rod 332 is slidably inserted into the piston chamber 311. With the above structure, during use, when the capsule housing assembly 310 is pressed, the capsule housing assembly 310 and the movable member 320 move along the direction of the force. At this time, the fixed rod 331 slides into the piston chamber 311, and the piston rod 332 moves towards the fixed rod 331 along with the capsule housing assembly 310 until the piston rod 332 abuts against the fixed rod 331. At this time, the piston rod 332 continues to slide into the piston chamber 311 along with the fixed rod 331, the pressure in the piston chamber 311 increases, and the oral cleaning liquid in the piston chamber 311 flows into the connection channel 342 under the pressure drive and then flows into the water storage chamber 101 along the liquid outlet 102; when the user releases the capsule housing assembly 310, the first elastic member 350 resets and drives the capsule housing assembly 310 back to the initial position. The fixed rod 331 slides in the direction away from the piston chamber 311, the atmospheric pressure drives the movable member 320 to move inward along the axis direction of the oral cleaning liquid capsule 300, and the pressure in the oral cleaning liquid accommodating chamber 301 drives the oral cleaning liquid to flow into the piston chamber 311, and the piston rod 332 slides in the direction away from the piston chamber 311. The piston rod 332 can slide relative to the piston chamber 311 under the action of the pressure and the fixed rod 331, and can adjust the pressure in the piston chamber 311 and the oral cleaning liquid accommodating chamber 301, so that the oral cleaning liquid can flow into the water storage chamber 101 along the connection channel 342 and the liquid outlet 102.

[0083] In this embodiment, the fixed rod 331 is provided with a fixed rod channel 3311, the piston rod 332 is provided with a piston rod channel 3321, and the piston rod 332 communicates with the piston chamber 311, the piston rod channel 3321, the connection channel 342 and the liquid outlet 102 are communicated in sequence. With the above structure, during use, when the fixed rod 331 slides into the piston chamber 311, the piston rod 332 moves towards the fixed rod 331 along with the capsule housing assembly 310 until the piston rod 332 abuts against the fixed rod 331. At this time, the piston rod 332 continues to slide into the piston chamber 311 along with the fixed rod 331, the pressure in the piston chamber 311 increases, and the oral cleaning liquid in the piston chamber 311 flows into the connection channel 342 along the piston rod channel 3321 and the fixed rod channel 3311 under the pressure drive and finally flows out along the liquid outlet 102.

[0084] In this embodiment, the oral cleaning liquid capsule 300 further includes a first one-way valve 360. The capsule housing assembly 310 is provided with a first communication hole 312. The first communication hole 312 allows the oral cleaning liquid containing cavity 301 to communicate with the piston cavity 311. The first one-way valve 360 is disposed in the first communication hole 312. The first one-way valve 360 is used to allow the oral cleaning liquid to flow unidirectionally from the oral cleaning liquid containing cavity 301 into the piston cavity 311. With the above structure, during use, when the fixing rod 331 slides towards the inside of the piston cavity 311, the piston rod 332 moves towards the fixing rod 331 along with the capsule housing assembly 310 until the piston rod 332 abuts against the fixing rod 331. At this time, the piston rod 332 continues to slide towards the inside of the piston cavity 311 along with the fixing rod 331, the first one-way valve 360 closes, and the pressure in the piston cavity 311 increases, so that the oral cleaning liquid flows into the connection channel 342 along the piston rod channel 3321 and the fixing rod channel 3311, and finally flows out along the liquid outlet 102. When the user releases the capsule housing assembly 310, the first elastic member 350 drives the capsule housing assembly 310 to reset, and the atmospheric pressure drives the movable member 320 to move inward along the axis of the oral cleaning liquid capsule 300, the first one-way valve 360 opens, and the pressure in the oral cleaning liquid containing cavity 301 drives the oral cleaning liquid to flow into the piston cavity 311.

[0085] In this embodiment, the oral cleaning liquid capsule 300 further includes a seal 370. The piston rod 332 is further provided with a second through hole 3322. The second through hole 3322 allows the piston cavity 311 to communicate with the piston rod channel 3321. The seal 370 is slidably sleeved on the piston rod 332 and covers or opens the second through hole 3322. With the above structure, during use, when the fixing rod 331 slides towards the inside of the piston cavity 311, the piston rod 332 moves towards the fixing rod 331 along with the capsule housing assembly 310 until the piston rod 332 abuts against the fixing rod 331. At this time, the piston rod 332 continues to slide towards the inside of the piston cavity 311 along with the fixing rod 331, the seal 370 moves relative to the piston rod 332, and the second through hole 3322 opens to allow the oral cleaning liquid to pass through the second through hole 3322 and enter the piston rod channel 3321.

[0086] In this embodiment, the capsule housing assembly 310 is further provided with an air vent 313. An air pressure chamber 302 is formed between the inner wall of the movable member 320 and the inner wall of the capsule housing assembly 310. The air vent 313 is used to connect the air pressure chamber 302 and the external atmosphere. Through the above structure, the air vent 313 can connect the external atmosphere and the air pressure chamber 302. When the pressure in the oral cleaning liquid containing chamber 301 decreases, the atmospheric pressure can drive the movable member 320 to move inward, ensuring the stability of the pressure in the oral cleaning liquid containing chamber 301, and thus making it easier for the oral cleaning liquid to enter the water storage chamber 101 under the action of the piston assembly 330.

[0087] In this embodiment, a capsule containing chamber 103 is provided at the bottom of the housing 100. The oral cleaning liquid capsule 300 is detachably inserted into the capsule containing chamber 103. Through the above structure, during use, the user can insert the oral cleaning liquid capsule 300 into the capsule containing chamber 103, which is convenient to use, and the oral cleaning liquid capsule 300 can be freely replaced when the oral cleaning liquid in the oral cleaning liquid containing chamber 301 is exhausted; moreover, in order to ensure the stability of the center of gravity, the dental irrigator product is usually designed with a narrower upper part and a wider lower part. By arranging the oral cleaning liquid capsule 300 at the bottom of the housing 100, the bottom of the housing 100 generally refers to the part below the vertical center line of the housing 100, which allows the use of a larger volume of oral cleaning liquid capsule 300, thereby extending the usage time of the product, reducing the frequency of replacing the oral cleaning liquid capsule 300, and improving the user experience.

[0088] In this embodiment, a card slot 303 is provided on the surface of the oral cleaning liquid capsule 300, and a clamping assembly 400 is provided in the housing 100. The clamping end of the clamping assembly 400 passes through the inner wall of the capsule containing chamber 103 of the housing 100 and is detachably clamped in the card slot 303. Through the above structure, during use, when the oral cleaning liquid capsule 300 is inserted into the capsule containing chamber 103, the clamping end of the clamping assembly 400 is clamped in the card slot 303, which can effectively fix the oral cleaning liquid capsule 300 and make the product structure more stable; when detaching the oral cleaning liquid capsule 300, the clamping end of the clamping assembly 400 is detached from the card slot 303, and the oral cleaning liquid capsule 300 is separated from the capsule containing chamber 103, which is convenient for the user to disassemble the oral cleaning liquid capsule 300 and the operation is convenient.

[0089] In this embodiment, the clamping assembly 400 includes a clamping member 410, a pressing member 420, and a second elastic member 430. The housing 100 is provided with a keyhole 104. The pressing member 420 is disposed in the keyhole 104. The first end of the second elastic member 430 abuts against the pressing member 420, and the second end of the second elastic member 430 abuts against the clamping member 410. The elasticity of the second elastic member 430 drives the clamping member 410 to be inserted into the card slot 303, and the pressing member 420 is used to drive the clamping member 410 to detach from the card slot 303 under an external force. With the above structure, during use, when the pressing member 420 is pressed, the second elastic member 430 deforms, and the pressing member 420 drives the clamping member 410 to move outward, and the clamping end of the clamping member 410 detaches from the card slot 303, so that the oral cleaning liquid capsule 300 can be conveniently separated from the capsule accommodating cavity 103; when the user releases the pressing member 420, the second elastic member 430 resets and drives the clamping member 410 to move inward, and the clamping end of the clamping member 410 is clamped in the card slot 303, so that the oral cleaning liquid capsule 300 can be stably connected to the capsule accommodating cavity 103, improving the stability of the product and being convenient for disassembly and assembly.

[0090] In this embodiment, the clamping assembly 400 further includes a transmission member 440. The first end of the transmission member 440 is rotatably connected to the pressing member 420, the middle of the transmission member 440 is rotatably connected to the housing 100, and the second end of the transmission member 440 is rotatably connected to the clamping member 410. With the above structure, during use, when the pressing member 420 is pressed, the second elastic member 430 deforms, and the pressing member 420 pushes the transmission member 440 to rotate around its middle inward, and the second end of the transmission member 440 drives the clamping member 410 to move outward, so that the clamping end of the clamping member 410 detaches from the card slot 303; when the user releases the pressing member 420, the second elastic member 430 resets and drives the clamping member 410 to move inward. At the same time, the clamping member 410 drives the transmission member 440 to rotate around its middle, and the transmission member 440 pushes the pressing member 420 to move outward, so that the pressing member 420 resets to its initial position.

[0091] In this embodiment, there are two clamping assemblies 400, and the two clamping assemblies 400 are disposed in the housing 100 and are respectively located on both sides of the capsule accommodating cavity 103. With the above structure, the two symmetrically arranged clamping assemblies 400 can be respectively clamped to the card slots 303 on both sides of the oral cleaning liquid capsule 300, which can not only enhance the structural stability of the product, but also prevent the user from accidentally touching. The user needs to press the pressing members 420 of the two clamping assemblies 400 simultaneously to separate the oral cleaning liquid capsule 300 from the capsule accommodating cavity 103.

[0092] In this embodiment, a detachment assembly 500 is further included. The detachment assembly 500 includes a third elastic member 510 and a detachment bump 520. An opening 105 is provided in the upper part of the inner wall of the capsule accommodation cavity 103. The first end of the third elastic member 510 abuts against the housing 100, the second end of the third elastic member 510 abuts against the detachment bump 520, and the abutting end of the detachment bump 520 passes through the opening 105 and abuts against the upper surface of the oral cleaning liquid capsule 300. With the above structure, during use, when the engaging member 410 of the engaging assembly 400 engages with the card slot 303, the third elastic member 510 drives the detachment bump 520 to move towards the oral cleaning liquid capsule 300, and the detachment bump 520 abuts against the surface of the oral cleaning liquid capsule 300; when the engaging member 410 of the engaging assembly 400 disengages from the card slot 303, the third elastic member 510 drives the detachment bump 520 to move towards the oral cleaning liquid capsule 300, and the detachment bump 520 pushes the oral cleaning liquid capsule 300 to enable the oral cleaning liquid capsule 300 to be detached from the capsule accommodation cavity 103, facilitating the user to replace the oral cleaning liquid capsule 300.

[0093] In this embodiment, the third elastic member 510 includes two springs. The housing 100 is provided with two spring accommodation grooves 121. The two springs are respectively inserted into the two spring accommodation grooves 121. The second ends of the two springs respectively abut against both ends of the detachment bump 520 and are symmetrically arranged along the axis of the capsule accommodation cavity 103. With the above structure, the two springs respectively abut against both ends of the detachment bump 520, which can enable the detachment bump 520 to stably pass through the opening 105. Moreover, the spring accommodation grooves 121 can allow the springs to be stably inserted, restricting the deformation direction of the springs and improving the stability of the product.

[0094] In this embodiment, the housing 100 includes an upper housing 110 and a bottom case 120. The bottom case 120 is detachably connected to the upper housing 110. A water storage cavity 101 is formed between the upper housing 110 and the bottom case 120. The capsule accommodation cavity 103 is provided in the bottom case 120. With the above structure, the upper housing 110 and the bottom case 120 are detachably arranged, which allows the user to detach the bottom case 120, and then open the water storage cavity 101, facilitating the user to clean the water storage cavity 101, ensuring the cleanliness of the water storage cavity 101, and further ensuring the oral safety of the user.

[0095] In this embodiment, a first sealing ring 130 is further included. A first sealing groove 122 is provided at the upper edge of the bottom case 120. The first sealing ring 130 is inserted into the first sealing groove 122, and the outer surface of the first sealing ring 130 abuts against the inner wall of the upper case 110. With the above structure, when in use, the bottom case 120 is installed on the upper case 110. At this time, the outer surface of the first sealing ring 130 abuts against the inner wall of the upper case 110, and the inner surface and the upper and lower surfaces of the first sealing ring 130 abut against the inner wall of the first sealing groove 122, which can increase the sealing performance of the product, prevent the liquid in the water storage cavity 101 from leaking, and improve the sealing performance of the product.

[0096] In this embodiment, a locking component 600 is further included. The locking component 600 includes a locking part 610 and a fourth elastic member 620. The first end of the fourth elastic member 620 abuts against the bottom case 120, the second end of the fourth elastic member 620 abuts against the locking part 610, and the locking part 610 is locked to the upper case 110. With the above structure, the elastic force of the fourth elastic member 620 drives the locking part 610 to lock the locking part 610 to the upper case 110, improving the connection stability between the upper case 110 and the bottom case 120.

[0097] In this embodiment, a locking groove 111 is provided on the upper case 110. The locking part 611 of the locking part 610 is detachably clamped in the locking groove 111. With the above structure, the elastic force of the fourth elastic member 620 drives the locking part 610 to make the locking part 611 of the locking part 610 clamped in the locking groove 111, making the connection between the upper case 110 and the bottom case 120 stable.

[0098] In this embodiment, a slot 123 is provided on the bottom case 120. The detaching part 612 of the locking part 610 passes out along the slot 123. The detaching part 612 of the locking part 610 is used for the user to press, so that the locking part 611 of the locking part 610 is detached from the locking groove 111. With the above structure, when in use, pressing the detaching part, the fourth elastic member 620 deforms, and the locking part of the locking part 610 is detached from the locking groove 111, enabling the user to detach the bottom case 120 from the upper case 110; when the user releases the detaching part, the fourth elastic member 620 resets and pushes the locking part of the locking part 610 to be clamped in the locking groove 111, making the connection between the upper case 110 and the bottom case 120 stable.

[0099] In this embodiment, a convex portion 128 is formed by upward protrusion on the upper surface of the bottom shell 120 near the liquid outlet 102, and the liquid outlet 102 is provided at the top of the convex portion 128. Through the above structure, the liquid outlet 102 is provided at the top of the convex portion 128, which increases the contact area between the oral cleaning liquid passing through the liquid outlet 102 and the water body, and the oral cleaning liquid quickly diffuses into the water in the water storage cavity 101, making the cleaning effect of the product better and more stable.

[0100] In this embodiment, the upper surface of the bottom shell 120 is inclined, and a suction space is formed between the convex portion 128 and the lowest side of the upper surface of the bottom shell 120, and the liquid suction port 201 of the pumping assembly 200 extends into the suction space. Through the above structure, when in use, when the water in the water storage cavity 101 decreases, the water flows into the suction space under the action of gravity, and the liquid suction port 201 of the pumping assembly 200 extends into the suction space, which can effectively suck the liquid in the suction space completely, improve the suction efficiency of the pumping assembly 200, prevent liquid accumulation, and improve the liquid utilization efficiency.

[0101] In this embodiment, a transparent observation window is provided at the bottom of the side wall of the upper shell 110, and the observation window is used to allow the user to observe the liquid level position in the water storage cavity 101. Through the above structure, when in use, the user can observe the liquid level position in the water storage cavity 101 through the observation window, enabling the user to timely understand the working state of the product and add water in time, improving the user experience; at the same time, it can prevent the pumping assembly 200 from idling and extend the service life of the product.

[0102] In this embodiment, the observation window includes a front observation window unit 1131 and a rear observation window unit 1132, and the front observation window unit 1131 and the rear observation window unit 1132 are respectively provided on the front and rear sides of the upper shell 110. Through the above structure, the two separately provided front observation window unit 1131 and rear observation window unit 1132 enable the user to observe the liquid level position in the water storage cavity 101 on both the front and rear sides of the product, facilitating the user's use; moreover, the appearance of the product is more beautiful; preferably, the front observation window unit 1131 is generally a trapezoid with rounded corners at the four corners, the rear observation window unit 1132 is generally a trapezoid with rounded corners at the four corners, the ratio of the area of the front observation window unit 1131 to the area of the rear observation window unit 1132 is about 1.2 - 1.8, and the front observation window unit 1131 and the rear observation window unit 1132 are oppositely arranged.

[0103] In this embodiment, it further includes a liquid injection cover 140. The upper housing 110 is provided with a liquid injection port 107, and the liquid injection port 107 communicates with the water storage cavity 101. The liquid injection cover 140 is detachably covered on the liquid injection port 107. Through the above structural arrangement, by opening the liquid injection cover 140, water can be injected into the water storage cavity 101 through the liquid injection port 107, which is convenient for the user to add water at any time; and during use, the liquid injection cover 140 is covered on the liquid injection port 107 to prevent water from flowing out and improve the sealing performance of the product.

[0104] In this embodiment, a rotating shaft hole 114 is provided at the upper housing 110 near the liquid injection port 107. A rotating shaft 141 is provided at the connecting end of the liquid injection cover 140, and the rotating shaft 141 is rotatably inserted into the rotating shaft hole 114 so that the liquid injection cover 140 is detachably covered on the liquid injection port 107. Through the above structural arrangement, by rotating the liquid injection cover 140 to detach the liquid injection cover 140 from the liquid injection port 107, water can be injected into the water storage cavity 101 through the liquid injection port 107; and during use, by rotating the liquid injection cover 140 to the covering position, the liquid injection cover 140 is covered on the liquid injection port 107 to prevent water from flowing out and improve the sealing performance of the product.

[0105] In this embodiment, it further includes a second sealing ring 150. A protruding sealing block 142 is provided on the side of the liquid injection cover 140 facing the upper housing 110. A second sealing groove 143 is provided on the sealing block 142, and the second sealing ring 150 is inserted into the second sealing groove 143. The outer surface of the second sealing ring 150 abuts against the edge of the liquid injection port 107. Through the above structural arrangement, when the liquid injection cover 140 is covered on the liquid injection port 107, the outer surface of the second sealing ring 150 abuts against the edge of the liquid injection port 107, and the inner surface and the upper and lower surfaces of the second sealing ring 150 abut against the second sealing groove 143, which can further improve the sealing performance between the liquid injection cover 140 and the liquid injection port 107 and prevent water from flowing out along the gap between the liquid injection cover 140 and the liquid injection port 107.

[0106] In this embodiment, a receiving groove 108 is formed by inward depression at the upper housing 110 near the liquid injection port 107. When the liquid injection cover 140 is covered on the liquid injection port 107, the liquid injection cover 140 is basically received in the receiving groove 108. Through the above structural arrangement, when the liquid injection cover 140 is covered on the liquid injection port 107, the liquid injection cover 140 is basically received in the receiving groove 108. At this time, the outer surface of the liquid injection cover 140 is basically flush with the upper housing 110. On the one hand, it makes the appearance of the product more beautiful, and on the other hand, it also prevents the liquid injection cover 140 from being opened due to being scratched by the user, improving the stability of the product.

[0107] In this embodiment, the free end of the liquid filling cover 140 is bent outward to form a toggle portion 144. When the liquid filling cover 140 covers the liquid filling port 107, there is a gap between the toggle portion 144 and the receiving groove 108. With the above-mentioned structure, when opening the liquid filling cover 140, the user inserts a finger into the gap between the toggle portion 144 and the receiving groove 108, moves the toggle portion 144 outward, and then rotates the liquid filling cover 140, which is convenient for the user to open the liquid filling cover 140.

[0108] In this embodiment, the liquid filling cover 140 is provided with a first buckle 145 near the sealing block 142, and the edge of the liquid filling port 107 is provided with a second buckle 117, and the first buckle 145 is snapped with the second buckle 117. Through the above-mentioned structure, when the liquid filling cover 140 covers the liquid filling port 107, the first buckle 145 is snapped with the second buckle 117, thereby connecting the free end of the liquid filling cover 140 with the upper shell 110, hindering the rotation of the liquid filling cover 140 and improving the stability of the product.

[0109] In this embodiment, a control board 800 is further included, and the control board 800 is arranged in the upper housing 110. The pumping assembly 200 is electrically connected to the control board 800. The upper housing 110 is provided with a charging port 109, and the charging terminal in the charging port 109 is electrically connected to the control board 800. Through the above-mentioned structural setting, the charging terminal in the charging port 109 can connect the control board 800 and an external power source, so as to charge the product and improve the endurance of the product.

[0110] In this embodiment, a charging cover 160 is further included, and the charging cover 160 is detachably covered on the charging port 109. With the above-mentioned structure, when charging, the charging cover 160 is opened to allow the output end of the charger to be inserted into the charging port 109 to achieve charging; when in use, the charging cover 160 is covered on the charging port 109 to prevent impurities such as water and dust from entering the charging port 109, thereby improving the safety of the product.

[0111] In this embodiment, the upper shell 110 is provided with an insertion slot 115 near the edge of the charging port 109, and the insertion slot 115 is used for inserting a user's finger. Through the above-mentioned structure, the insertion slot 115 is provided, which can facilitate the user to insert a finger into the insertion slot 115, and then open the charging cover 160, which is convenient for the user to operate.

[0112] In this embodiment, the upper shell 110 is provided with a friction gripping portion 116, and the friction gripping portion 116 is provided with friction lines. Through the above-mentioned structure, the friction lines at the friction gripping portion 116 can increase the friction coefficient, making the user hold the product more stable, and at the same time, making the product appearance more beautiful.

[0113] In this embodiment, the upper housing 110 is narrow at the top and wide at the bottom, and the friction gripping portion 116 is provided at the upper part of the upper housing 110. Through the above structural arrangement, the friction gripping portion 116 is provided at the upper part of the upper housing 110, where the thickness of the upper housing 110 is appropriate, facilitating the user to grip.

[0114] In this embodiment, the bottom case 120 is provided with a water leakage groove 129, and the water leakage groove 129 communicates with the internal space of the bottom case 120. Through the above structural arrangement, during use, the water leakage groove 129 can allow the accumulated water in the bottom case 120 to flow out, ensuring the dryness inside the product and preventing bacteria from breeding; preferably, the water leakage groove 129 is provided at the bottom of the bottom case 120.

[0115] As described above, one or more embodiments are provided in combination with specific contents, and it is not determined that the specific implementation of the present utility model is only limited to these descriptions. Any method, structure, etc. that is similar or identical to the present utility model, or any technical deduction or replacement made on the premise of the concept of the present utility model, should be regarded as within the protection scope of the present utility model.

Claims

1. A water flosser with a one-way sealing device, characterized in that: include: A shell (100), wherein a water storage chamber (101) and a liquid outlet (102) connected to the water storage chamber (101) are provided in the shell (100), wherein the liquid outlet (102) is arranged at the bottom of the water storage chamber (101), wherein the shell (100) extends downward along the edge of the liquid outlet (102) to form a first abutment block (106), wherein a protruding second abutment block (127) is provided in the shell (100), and wherein the second abutment block (127) is arranged toward the first abutment block (106); A second one-way valve (700), wherein the second one-way valve (700) is provided with an abutment platform (701), wherein the first abutment block (106) abuts against the upper surface of the abutment platform (701), and the second abutment block (127) abuts against the lower surface of the abutment platform (701), so as to limit the second one-way valve (700) between the first abutment block (106) and the second abutment block (127), and the second one-way valve (700) is used to allow oral cleaning liquid to flow into the water storage chamber (101) along the liquid outlet (102) in one direction.

2. The oral irrigator with a one-way sealing device according to claim 1, characterized in that: The second abutment block (127) is provided with an insertion groove (126), and the second one-way valve (700) is provided with an insertion block (702). The insertion block (702) extends downward along the lower surface of the abutment platform (701), and the insertion block (702) is inserted into the insertion groove (126).

3. The oral irrigator with a one-way sealing device according to claim 2, characterized in that: The insertion block (702) is provided with a limiting platform (703), and the inner side wall end surface of the insertion slot (126) abuts against the limiting platform (703).

4. The oral irrigator with a one-way sealing device according to claim 1, characterized in that: The invention also comprises an oral cleaning liquid capsule (300), wherein an oral cleaning liquid containing chamber (301) is provided in the oral cleaning liquid capsule (300), the oral cleaning liquid capsule (300) is arranged at the bottom of the shell (100), the water outlet of the oral cleaning liquid capsule (300) is inserted into the bottom of the second one-way valve (700), the oral cleaning liquid containing chamber (301) is connected to the liquid outlet (102), and the oral cleaning liquid capsule (300) is used to drive the oral cleaning liquid in the oral cleaning liquid containing chamber (301) to pass through the liquid outlet (102) into the water storage chamber (101) under the action of an external force, and the axis of the oral cleaning liquid capsule (300) in the direction of force is intersected or projected to intersect with the axis of the shell (100) in the vertical direction.

5. The oral irrigator with a one-way sealing device according to claim 1, characterized in that: The invention also comprises a pumping assembly (200), wherein the pumping assembly (200) is arranged in the housing (100), and a liquid suction port (201) of the pumping assembly (200) is extended and arranged at the bottom of the water storage chamber (101) near the liquid outlet (102), and the pumping assembly (200) is used to suck liquid and spray the liquid along the nozzle (210).

6. The oral irrigator with a one-way sealing device according to claim 4, characterized in that: A capsule shell component (310), a movable part (320), a piston component (330) and a connecting shell (340), wherein the movable part (320) is movably arranged in the capsule shell component (310), an oral cleaning liquid receiving chamber (301) is formed between the inner wall of the movable part (320) and the inner wall of the capsule shell component (310), and the capsule shell component (310) is further provided with a piston chamber (311), wherein the piston chamber (311) is connected to the oral cleaning liquid receiving chamber (301) and is used to be connected to the liquid outlet (102) of the water flosser, and the piston component (330) is slidably arranged in the piston chamber (311). ); the connecting shell (340) is provided with a sliding cavity (341), and the capsule shell assembly (310) is slidably arranged in the sliding cavity (341); when the capsule shell assembly (310) slides inward along the sliding cavity (341) under the action of an external force, the piston assembly (330) slides toward the piston cavity (311) to spray the oral cleaning liquid in the piston cavity (311) along the liquid outlet (102) of the water flosser; the movable part (320) moves in a direction toward the piston assembly (330) under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid containing cavity (301).

7. The oral rinser according to claim 6, characterized in that: It also includes a first elastic member (350), wherein a first end of the first elastic member (350) abuts against the capsule shell assembly (310), and a second end of the first elastic member (350) abuts against the inner wall of the sliding cavity (341).

8. The oral irrigator with a one-way sealing device according to claim 7, characterized in that: The connecting housing (340) is provided with a connecting channel (342), a first end of the connecting channel (342) is connected to the piston chamber (311), and a second end of the connecting channel (342) is connected to the liquid outlet (102).

9. The oral irrigator with a one-way sealing device according to claim 8, characterized in that: The piston assembly (330) comprises a fixed rod (331) and a piston rod (332), wherein the fixed rod (331) abuts against the housing (100) and is inserted into the piston chamber (311), and the piston rod (332) is slidably inserted into the piston chamber (311).

10. The oral irrigator with a one-way sealing device according to claim 9, characterized in that: The fixed rod (331) is provided with a fixed rod channel (3311), the piston rod (332) is provided with a piston rod channel (3321), and the piston rod (332) is connected to the piston chamber (311), the piston rod channel (3321), the connecting channel (342) and the liquid outlet (102) in sequence.

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