Water pick

Abstract

The utility model discloses an oral irrigator which comprises a shell, a pumping assembly and an oral cavity cleaning liquid capsule, a water storage cavity and a liquid outlet communicated with the water storage cavity are formed in the shell, and the liquid outlet is formed in the bottom of the water storage cavity; the pumping assembly is arranged in the shell, a liquid suction opening of the pumping assembly is formed in the position, close to the liquid outlet, of the bottom of the water storage cavity in an extending mode, and the pumping assembly is used for sucking liquid and spraying the liquid out along the nozzle; an oral cavity cleaning liquid containing cavity is formed in the oral cavity cleaning liquid capsule, the oral cavity cleaning liquid capsule is arranged at the bottom of the shell, the oral cavity cleaning liquid containing cavity communicates with the liquid outlet, and the oral cavity cleaning liquid capsule is used for driving oral cavity cleaning liquid in the oral cavity cleaning liquid containing cavity to penetrate through the liquid outlet to enter the water storage cavity under the action of external force; the axis of the stress direction of the oral cavity cleaning liquid capsule intersects with the axis of the vertical direction of the shell or the projection intersects with the axis of the vertical direction of the shell. The oral cavity cleaning liquid capsule is pressed, the oral cavity cleaning liquid is injected into the bottom of the water storage cavity, the pumping assembly pumps liquid at the bottom of the water storage cavity, and the cleaning effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning, in particular to a dental irrigator. Background Art

[0002] As an oral cleaning tool, a dental irrigator mainly uses the way of water flow impact to clean teeth and tooth gaps. Especially for the tooth gap part, it can achieve effective cleaning. 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 liquid, etc. Among them, the product using capsules to supplement oral cleaning liquid is convenient to use and can supplement oral cleaning liquid more continuously and conveniently.

[0003] The oral cleaning liquid capsules of existing dental irrigator products are usually arranged at the upper part of the product. When in use, the user needs to press the oral cleaning liquid capsule to inject the oral cleaning liquid into the water storage cavity of the dental irrigator. Since the force direction of the oral cleaning liquid capsule is basically the same as the vertical axis direction of the product, the user needs to hold the product more firmly when pressing the oral cleaning liquid capsule to overcome the pressing force. And because the oral cleaning liquid capsule is arranged at the top of the product, it requires two-handed operation, which is inconvenient for the user. When the oral cleaning liquid is injected into the water storage cavity, it is at the upper part of the liquid level, while the suction port of the product is usually at the bottom of the water storage cavity liquid level. When in use, the liquid with a higher concentration of oral cleaning liquid cannot be sucked immediately, and the oral cleaning effect is poor.

[0004] Therefore, the utility model provides a dental irrigator, which can effectively solve the above problems, and has a simple structure, convenient use and good cleaning 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 simple structure, convenient use and good cleaning effect.

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

[0007] A dental irrigator, 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;

[0009] A pumping assembly is arranged in the housing. The liquid suction port of the pumping assembly extends to be arranged near the liquid outlet at the bottom of the water storage cavity. The pumping assembly is used for sucking liquid and spraying the liquid along a nozzle.

[0010] An oral cleaning liquid capsule is provided. An oral cleaning liquid containing cavity is arranged inside the oral cleaning liquid capsule. The oral cleaning liquid capsule is disposed at the bottom of the housing. 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 of the direction of the force on the oral cleaning liquid capsule intersects or the projections intersect with the axis in the vertical direction of the housing.

[0011] 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. An oral cleaning liquid containing cavity is arranged inside the capsule housing assembly. The capsule housing assembly further has a piston cavity which communicates with the oral cleaning liquid containing cavity and is used to communicate with the liquid outlet of the oral irrigator. The piston assembly is slidably arranged in the piston cavity. The connecting housing has a sliding cavity, and 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 toward the inside of the piston cavity to spray the oral cleaning liquid in the piston cavity out through the liquid outlet of the oral irrigator. It further includes a movable member which is movably arranged inside the capsule housing assembly. An oral cleaning liquid containing cavity is formed between the inner wall of the movable member and the inner wall of the capsule housing assembly. The movable member moves in the direction toward the piston assembly under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid containing cavity.

[0012] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a first elastic member. The first end of the first elastic member abuts against the capsule housing assembly, and the second end of the first elastic member abuts against the inner wall of the sliding cavity.

[0013] As an improvement of the present utility model, the connecting housing is provided with a connecting channel. The first end of the connecting channel communicates with the piston cavity, and the second end of the connecting channel communicates with the liquid outlet.

[0014] As an improvement of the present utility model, the piston assembly includes a fixed rod and a piston rod. The fixed rod abuts against the housing and is inserted into the piston cavity, and the piston rod is slidably inserted into the piston cavity.

[0015] As an improvement of the present utility model, the fixed rod is provided with a fixed rod channel, and 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 sequentially communicated.

[0016] 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, and the first communication hole allows the oral cleaning liquid accommodating cavity to communicate with the piston cavity. 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 accommodating cavity into the piston cavity.

[0017] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a seal. The piston rod is further provided with a second through hole, and the second through hole allows the piston cavity to communicate with the piston rod channel. The seal is slidably sleeved on the piston rod and covers or opens the second through hole.

[0018] 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 part and the inner wall of the capsule housing assembly, and the air guide hole is used to communicate the air pressure cavity with the external atmosphere.

[0019] 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.

[0020] As an improvement of the present utility model, the surface of the oral cleaning liquid capsule is provided with a card slot. A clamping component is arranged in the housing, and the clamping end of the clamping component extends out of the inner wall of the capsule accommodating cavity of the housing and is detachably clamped in the card slot.

[0021] As an improvement of the present utility model, the clamping component includes a clamping piece, a pressing piece and a second elastic piece. The housing is provided with a key hole, the pressing piece is arranged in the key hole, the first end of the second elastic piece abuts against the pressing piece, the second end of the second elastic piece abuts against the clamping piece, and the elasticity of the second elastic piece drives the clamping piece to be inserted into the card slot. The pressing piece is used to drive the clamping piece to disengage from the card slot under external pressing force.

[0022] As an improvement of the present utility model, the clamping component further includes a transmission piece. The first end of the transmission piece is rotatably connected to the pressing piece, the middle of the transmission piece is rotatably connected to the housing, and the second end of the transmission piece is rotatably connected to the clamping piece.

[0023] As an improvement of the present utility model, there are two clamping components, and the two clamping components are arranged in the housing and are respectively located on both sides of the capsule accommodating cavity.

[0024] As an improvement of the present utility model, it further includes a detachment component. The detachment component includes a third elastic member and a detachment bump. 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 bump, and the abutting end of the detachment bump passes through the opening and abuts against the upper surface of the oral cleaning liquid capsule.

[0025] 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 bump and are symmetrically arranged along the axis where the capsule accommodating cavity is located.

[0026] 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. The capsule accommodating cavity is arranged in the bottom shell.

[0027] As an improvement of the present utility model, it further includes a first sealing ring. A first sealing groove is provided at the upper edge of the bottom shell. 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 housing.

[0028] As an improvement of the present utility model, it further includes a locking component. The locking component includes a locking part 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 part, and the locking part is locked to the upper housing.

[0029] As an improvement of the present utility model, the upper housing is provided with a locking groove, and the locking part of the locking part is detachably clamped in the locking groove.

[0030] As an improvement of the present utility model, the bottom shell is provided with a slot, and the detachment part of the locking part passes out along the slot. The detachment part of the locking part is used for the user to press so that the locking part of the locking part is detached from the locking groove.

[0031] As an improvement of the present utility model, it further includes a second one-way valve. The housing extends downward along the edge of the liquid outlet to form a first abutting block. A protruding second abutting block is arranged in the housing. The second abutting block faces the first abutting block. 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.

[0032] As an improvement of the present invention, the second abutment block is provided with an insertion groove, the second one-way valve is provided with an insertion block, the insertion block extends downward along the lower surface of the abutment platform, and the insertion block is inserted in the insertion groove.

[0033] As an improvement of the utility model, the insertion block is provided with a limiting platform, and the inner side wall end surface of the insertion slot abuts against the limiting platform.

[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. The sealing block is provided with a second sealing groove. The second sealing ring is inserted into the second sealing groove. 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 filling port to form a receiving groove, and when the liquid filling cover is closed on the liquid filling port, the liquid filling 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 close to 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. A charging port is provided on the upper shell, 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 groove is provided on the upper shell close to the edge of the charging port for a user's finger to insert.

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

[0049] As an improvement of the present utility model, a water leakage groove is provided on the bottom shell, and the water leakage groove 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, when in use, a user holds the shell and can simultaneously press the oral cleaning liquid capsule at the bottom of the shell. The oral cleaning liquid capsule is stressed, and the oral cleaning liquid therein is injected to the bottom of the water storage cavity. The pumping assembly works, and the liquid suction port of the pumping assembly extends to the bottom of the water storage cavity, and can suck the liquid with a higher concentration of oral cleaning liquid at the bottom of the water storage cavity, so that the cleaning effect of the product is better; In order to ensure the stability of the center of gravity, the irrigator product is usually arranged to be narrow at the top and wide at the bottom. By arranging the oral cleaning liquid capsule at the bottom of the shell, a larger volume of oral cleaning liquid capsule can be allowed, thereby prolonging the use time of the product and reducing the frequency of replacing the oral cleaning liquid capsule, which is convenient to use; And since the axis of the stress direction of the oral cleaning liquid capsule intersects or the projection intersects with the axis of the vertical direction of the shell, no greater holding force needs to be provided when pressing the oral cleaning liquid capsule, and it is more labor-saving and convenient for the user to press the oral cleaning liquid capsule. The user can hold the product with one hand and press the oral cleaning liquid capsule with the palm. Description of the Drawings

[0051] 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 drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0052] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0053] Figure 1 is the overall structural schematic diagram of the present utility model;

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

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

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

[0057] Figure 5 is the structural schematic diagram of the liquid injection cover and the charging cover in the opened state of the present utility model;

[0058] Figure 6 is the cross-sectional structural schematic diagram of the present utility model;

[0059] Figure 7 is Figure 6 the enlarged view at circle A;

[0060] Figure 8 is Figure 6 the enlarged view at circle B;

[0061] Figure 9 is Figure 6 the enlarged view at circle C;

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

[0063] Figure 11 is Figure 10 the enlarged view at circle D;

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

[0065] Figure 13 is the structural schematic diagram of the buckle assembly of the present utility model;

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

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

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

[0069] Figure 17 is Figure 16 an enlarged view of the area E;

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

[0071] Referring to Figures 1 to 18 , a dental irrigator, comprising:

[0072] a housing 100, a water storage cavity 101 is provided in the housing 100, and a liquid outlet 102 communicating with the water storage cavity 101 is provided, and the liquid outlet 102 is arranged at the bottom of the water storage cavity 101;

[0073] a pumping assembly 200, the pumping assembly 200 is arranged in the housing 100, a liquid suction port 201 of the pumping assembly 200 extends to be arranged near the liquid outlet 102 at the bottom of the water storage cavity 101, and the pumping assembly 200 is used for sucking liquid and spraying the liquid along a nozzle 210;

[0074] an oral cleaning liquid capsule 300, an oral cleaning liquid accommodation cavity 301 is provided in the oral cleaning liquid capsule 300, the oral cleaning liquid capsule 300 is arranged at the bottom of the housing 100, the oral cleaning liquid accommodation cavity 301 communicates with the liquid outlet 102, and the oral cleaning liquid capsule 300 is used for driving the oral cleaning liquid in the oral cleaning liquid accommodation cavity 301 to pass through the liquid outlet 102 and enter the water storage cavity 101 under the action of an external force, and the axis of the force application direction of the oral cleaning liquid capsule 300 intersects or projects and intersects with the axis of the vertical direction of the housing 100.

[0075] With the above structure, during 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 chamber 101. The pumping assembly 200 operates. The liquid suction port 201 of the pumping assembly 200 extends to the bottom of the water storage chamber 101, and can suck the liquid with a relatively high concentration of oral cleaning liquid at the bottom of the water storage chamber 101, so that the cleaning effect of the product is better. In order to achieve stable 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 the oral cleaning liquid capsule 300, thereby prolonging the service time of the product and reducing the frequency of replacing the oral cleaning liquid capsule 300, making it convenient to use. Moreover, since the axis where the stress direction of the oral cleaning liquid capsule 300 is located intersects or projects and intersects with the axis of the housing 100 in the vertical direction, no greater holding force needs to be provided when pressing the oral cleaning liquid capsule 300. 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 of the hand.

[0076] In this embodiment, the oral cleaning liquid capsule 300 includes a capsule housing assembly 310, a piston assembly 330, and a connecting 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 connecting 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 through 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. Through the above structural arrangement, 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 flows into the water storage cavity 101 through the liquid outlet 102. The operation is simple. When the capsule housing assembly 310 is reset, 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.

[0077] 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 towards the piston cavity 311. At this time, the first elastic member 350 is deformed by force, and the oral cleaning liquid in the oral cleaning liquid accommodating 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 of the oral cleaning liquid capsule 300; the sliding cavity 341 of the connecting housing 340 can make the capsule housing assembly 310 move reciprocally more smoothly, and the user operation is more labor-saving and convenient. Moreover, using the connecting housing 340 can better connect the oral cleaning liquid capsule 300 with the housing 100 and protect each component therein; and the first elastic member 350 can realize the reset of the capsule housing assembly 310, and the operation is more simple.

[0078] 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 towards the piston cavity 311, the pressure in the oral cleaning liquid accommodating cavity 301 increases, the oral cleaning liquid flows from the oral cleaning liquid accommodating 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.

[0079] 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 towards the inside of 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 towards the inside of 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 connecting 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, driving 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 the pressure in the piston chamber 311 and the oral cleaning liquid accommodating chamber 301 can be adjusted, so that the oral cleaning liquid can flow into the water storage chamber 101 along the connecting channel 342 and the liquid outlet 102.

[0080] 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 connecting channel 342 and the liquid outlet 102 are communicated in sequence. With the above structure, during use, when the fixed rod 331 slides towards the inside of 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 towards the inside of 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 connecting 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.

[0081] 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 which 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 and 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 direction 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.

[0082] 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 which 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.

[0083] 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.

[0084] 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. Moreover, when the oral cleaning liquid in the oral cleaning liquid containing chamber 301 is exhausted, the oral cleaning liquid capsule 300 can be freely replaced. In addition, for the sake of center of gravity stability, the 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, a larger volume of oral cleaning liquid capsule 300 can be allowed, thereby extending the product usage time, reducing the frequency of replacing the oral cleaning liquid capsule 300, and improving the user experience.

[0085] In this embodiment, a card slot 303 is provided on the surface of the oral cleaning liquid capsule 300, and a clamping component 400 is provided in the housing 100. The clamping end of the clamping component 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 component 400 is clamped in the card slot 303, which can effectively fix the oral cleaning liquid capsule 300, making the product structure more stable. When detaching the oral cleaning liquid capsule 300, the clamping end of the clamping component 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.

[0086] In this embodiment, the clamping component 400 includes a clamping piece 410, a pressing piece 420 and a second elastic piece 430. The housing 100 is provided with a key hole 104. The pressing piece 420 is arranged in the key hole 104. The first end of the second elastic piece 430 abuts against the pressing piece 420, and the second end of the second elastic piece 430 abuts against the clamping piece 410. The elasticity of the second elastic piece 430 drives the clamping piece 410 to be inserted into the clamping groove 303, and the pressing piece 420 is used to drive the clamping piece 410 to be detached from the clamping groove 303 under external pressing. Through the above structural arrangement, during use, when the pressing piece 420 is pressed, the second elastic piece 430 deforms, and the pressing piece 420 drives the clamping piece 410 to move outward, and the clamping end of the clamping piece 410 is detached from the clamping groove 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 piece 420, the second elastic piece 430 resets and drives the clamping piece 410 to move inward, and the clamping end of the clamping piece 410 is clamped in the clamping groove 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.

[0087] In this embodiment, the clamping component 400 further includes a transmission piece 440. The first end of the transmission piece 440 is rotatably connected to the pressing piece 420, the middle part of the transmission piece 440 is rotatably connected to the housing 100, and the second end of the transmission piece 440 is rotatably connected to the clamping piece 410. Through the above structural arrangement, during use, when the pressing piece 420 is pressed, the second elastic piece 430 deforms, and the pressing piece 420 pushes the transmission piece 440 inward to rotate around the middle part thereof, and the second end of the transmission piece 440 drives the clamping piece 410 to move outward, so that the clamping end of the clamping piece 410 is detached from the clamping groove 303; when the user releases the pressing piece 420, the second elastic piece 430 resets and drives the clamping piece 410 to move inward. At the same time, the clamping piece 410 drives the transmission piece 440 to rotate around the middle part thereof, and the transmission piece 440 pushes the pressing piece 420 to move outward, so that the pressing piece 420 resets to the initial position.

[0088] In this embodiment, there are two clamping components 400, and the two clamping components 400 are arranged in the housing 100 and are respectively located on both sides of the capsule accommodating cavity 103. Through the above structural arrangement, the two symmetrically arranged clamping components 400 can be respectively clamped in the clamping grooves 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 pieces 420 of the two clamping components 400 at the same time to separate the oral cleaning liquid capsule 300 from the capsule accommodating cavity 103.

[0089] 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 accommodating 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. Through the above structural arrangement, during use, when the engaging member 410 of the engaging assembly 400 engages with the engaging 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 engaging 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, so that the oral cleaning liquid capsule 300 is detached from the capsule accommodating cavity 103, facilitating the user to replace the oral cleaning liquid capsule 300.

[0090] In this embodiment, the third elastic member 510 includes two springs. The housing 100 is provided with two spring accommodating grooves 121. The two springs are respectively inserted into the two spring accommodating 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 accommodating cavity 103. Through the above structural arrangement, 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 accommodating grooves 121 can allow the springs to be stably inserted, restricting the deformation direction of the springs and improving the stability of the product.

[0091] In this embodiment, the housing 100 includes an upper housing 110 and a bottom shell 120. The bottom shell 120 is detachably connected to the upper housing 110. The water storage cavity 101 is formed between the upper housing 110 and the bottom shell 120. The capsule accommodating cavity 103 is arranged in the bottom shell 120. Through the above structural arrangement, the upper housing 110 and the bottom shell 120 are detachably arranged, which allows the user to detach the bottom shell 120, thereby opening 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 thus ensuring the oral safety of the user.

[0092] 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 shell 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 shell 110. Through the above structural arrangement, during use, when the bottom shell 120 is installed on the upper shell 110, at this time, the outer surface of the first sealing ring 130 abuts against the inner wall of the upper shell 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.

[0093] In this embodiment, a lock component 600 is further included. The lock component 600 includes a lock part 610 and a fourth elastic member 620. The first end of the fourth elastic member 620 abuts against the bottom shell 120, the second end of the fourth elastic member 620 abuts against the lock part 610, and the lock part 610 is locked to the upper shell 110. Through the above structural arrangement, the elastic force of the fourth elastic member 620 drives the lock part 610, so that the lock part 610 is locked to the upper shell 110, improving the connection stability between the upper shell 110 and the bottom shell 120.

[0094] In this embodiment, a lock groove 111 is provided on the upper shell 110. The locking portion 611 of the lock part 610 is detachably clamped in the lock groove 111. Through the above structural arrangement, the elastic force of the fourth elastic member 620 drives the lock part 610, so that the locking portion 611 of the lock part 610 is clamped in the lock groove 111, making the connection between the upper shell 110 and the bottom shell 120 stable.

[0095] In this embodiment, a slot 123 is provided on the bottom shell 120. The detaching portion 612 of the lock part 610 passes out along the slot 123. The detaching portion 612 of the lock part 610 is used for the user to press, so that the locking portion 611 of the lock part 610 is detached from the lock groove 111. Through the above structural arrangement, during use, when the detaching portion is pressed, the fourth elastic member 620 deforms, and the locking portion of the lock part 610 is detached from the lock groove 111, enabling the user to detach the bottom shell 120 from the upper shell 110; when the user releases the detaching portion, the fourth elastic member 620 resets and pushes the locking portion of the lock part 610 to be clamped in the lock groove 111, making the connection between the upper shell 110 and the bottom shell 120 stable.

[0096] In this embodiment, a second one-way valve 700 is further included. A first abutting block 106 is formed by the housing 100 extending downward along the edge of the liquid outlet 102. A protruding second abutting block 127 is provided inside the housing 100. The second abutting block 127 faces the first abutting block 106. The second one-way valve 700 is provided with an abutting platform 701. The first abutting block 106 abuts against the upper surface of the abutting platform 701, and the second abutting block 127 abuts against the lower surface of the abutting platform 701 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. Through the setting of the above structure, during use, the second one-way valve 700 enables the oral cleaning liquid to only flow unidirectionally into the water storage cavity 101 along the installation channel 106 and the liquid outlet 102, 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 effect of the oral cleaning liquid; abutting the first abutting block 106 against the upper surface of the abutting platform 701 and the second abutting block 127 against 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.; wherein, 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.

[0097] In this embodiment, the second abutting block 127 is provided with an insertion slot 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 abutting platform 701, and the insertion block 702 is inserted into the insertion slot 126. Through the setting of the above structure, during use, when the insertion block 702 is inserted into the insertion slot 126, at this time, the outer surface of the insertion block 702 is attached to the inner wall surface of the insertion slot 126, which can effectively limit the insertion block 702, and further limit 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 is attached to the inner wall surface of the insertion slot 126, which can further enhance the sealing performance of the product.

[0098] 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 slot 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 slot 126 until the end surface of the inner side wall of the insertion slot 126 abuts against the limiting platform 703 to reach the installation position. The limiting platform 703 can effectively limit the insertion depth, and the product connection is more stable. At the same time, the end surface of the inner side wall of the insertion slot 126 can also support the limiting platform, so that the inner side of the lower surface of the first abutting block 106 can fit over the upper surface of the abutting platform 701 with an interference fit, further improving the sealing and stability of the product.

[0099] In this embodiment, a protruding 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 arranged at the top of the protruding portion 128. Through the setting of the above structure, the liquid outlet 102 is arranged at the top of the protruding portion 128, increasing the contact area between the oral cleaning liquid passing through the liquid outlet 102 and the water body. 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 protruding portion 128 and the lowest side of the upper surface of the bottom shell 120. The liquid suction port 201 of the pumping assembly 200 extends into the suction space. Through the setting of the above structure, during use, when the water in the water storage cavity 101 decreases, the water flows into the suction space under the action of gravity. 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 clean, 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 setting of the above structure, during 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, providing a better 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 arranged on the front and rear sides of the upper housing 110. Through the above structural arrangement, the separately arranged front observation window unit 1131 and rear observation window unit 1132 enable users to observe the liquid level position in the water storage cavity 101 on both the front and rear sides of the product, facilitating user 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 arranged opposite to each other.

[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, facilitating users 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 on 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, and 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, the upper shell 110 is inwardly recessed near the liquid injection port 107 to form a receiving groove 108. When the liquid injection cover 140 covers the liquid injection port 107, the liquid injection cover 140 is basically received in the receiving groove 108. Through the above-mentioned structure, when the liquid injection cover 140 covers 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 shell 110, which makes the product appearance more beautiful on the one hand, and prevents the user from scratching the liquid injection cover 140 to open, thereby 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, an insertion groove 115 is provided at the edge of the upper housing 110 near the charging port 109. The insertion groove 115 is used for a user to insert a finger. Through the above structural arrangement, by providing the insertion groove 115, it is convenient for the user to insert a finger into the insertion groove 115, and then open the charging cover 160, facilitating the user's operation.

[0112] In this embodiment, a friction grip portion 116 is provided on the surface of the upper housing 110, and the friction grip portion 116 is provided with friction lines. Through the above structural arrangement, the friction lines at the friction grip portion 116 can increase the friction coefficient, making it more stable for the user to hold the product. At the same time, it also makes the appearance of the product more beautiful.

[0113] In this embodiment, the upper housing 110 is narrower at the top and wider at the bottom, and the friction grip portion 116 is provided at the upper part of the upper housing 110. Through the above structural arrangement, by providing the friction grip portion 116 at the upper part of the upper housing 110, the thickness of the upper housing 110 here is appropriate, facilitating the user to hold.

[0114] In this embodiment, a water leakage groove 129 is provided on the bottom shell 120, and the water leakage groove 129 communicates with the internal space of the bottom shell 120. Through the above structural arrangement, during use, the water leakage groove 129 can allow the accumulated water in the bottom shell 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 shell 120.

[0115] As described above, one or more implementation manners are provided in combination with specific contents, and it is not considered 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. An oral irrigator, characterized in that, Comprising: A housing (100) having a water storage chamber (101) therein and a liquid outlet (102) communicating with the water storage chamber (101), the liquid outlet (102) being provided at the bottom of the water storage chamber (101); A pumping assembly (200) disposed within the housing (100), the suction port (201) of the pumping assembly (200) extending to be near the liquid outlet (102) at the bottom of the water storage chamber (101), the pumping assembly (200) being configured to suck liquid and eject the liquid along a nozzle (210); An oral cleaning liquid capsule (300) having an oral cleaning liquid containing chamber (301) therein, the oral cleaning liquid capsule (300) being disposed at the bottom of the housing (100), the oral cleaning liquid containing chamber (301) communicating with the liquid outlet (102), the oral cleaning liquid capsule (300) being configured to drive the oral cleaning liquid in the oral cleaning liquid containing chamber (301) to pass through the liquid outlet (102) and enter the water storage chamber (101) under the action of an external force.

2. The oral irrigator according to claim 1, wherein, The axis of the force application direction of the oral cleaning liquid capsule (300) intersects or projects to intersect with the axis of the housing (100) in the vertical direction. The oral cleaning liquid capsule (300) includes a capsule housing assembly (310), a piston assembly (330), and a connecting housing (340). The capsule housing assembly (310) has an oral cleaning liquid containing chamber (301) therein, and the capsule housing assembly (310) further has a piston chamber (311). The piston chamber (311) communicates with the oral cleaning liquid containing chamber (301) and is configured to communicate with the liquid outlet (102) of the oral irrigator. The piston assembly (330) is slidably disposed within the piston chamber (311). The connecting housing (340) has a sliding chamber (341), and the capsule housing assembly (310) is slidably disposed within the sliding chamber (341). When the capsule housing assembly (310) slides inward along the sliding chamber (341) under the action of an external force, the piston assembly (330) slides toward the inside of the piston chamber (311) to eject the oral cleaning liquid in the piston chamber (311) along the liquid outlet (102) of the oral irrigator.

3. The oral irrigator according to claim 2, wherein Further comprising a movable member (320) movably disposed within the capsule housing assembly (310). An oral cleaning liquid containing chamber (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 a direction toward the piston assembly (330) under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid containing chamber (301).

4. The oral irrigator according to claim 2, wherein Further comprising a first elastic member (350), a first end of the first elastic member (350) abuts against the capsule housing assembly (310), and a second end of the first elastic member (350) abuts against the inner wall of the sliding chamber (341).

5. The oral irrigator according to claim 2, wherein The connection housing (340) is provided with a connection passage (342), a first end of the connection passage (342) communicates with the piston chamber (311), and a second end of the connection passage (342) communicates with the liquid outlet (102).

6. The oral irrigator according to claim 5, wherein 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).

7. The dental irrigator according to claim 6, wherein The fixed rod (331) is provided with a fixed rod passage (3311), the piston rod (332) is provided with a piston rod passage (3321), the piston rod (332) communicates with the piston chamber (311), and the piston rod passage (3321), the connection passage (342) and the liquid outlet (102) communicate in sequence.

8. The oral irrigator according to claim 2, wherein, 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 accommodation chamber (301) to communicate with the piston chamber (311). The first one-way valve (360) is disposed in the first communication hole (312), and the first one-way valve (360) is used to allow the oral cleaning liquid to flow unidirectionally from the oral cleaning liquid accommodation chamber (301) into the piston chamber (311).

9. The oral irrigator according to claim 7, wherein 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 chamber (311) to communicate with the piston rod passage (3321). The seal (370) is slidably sleeved on the piston rod (332) and covers or opens the second through hole (3322).

10. According to the claim 3 The oral irrigator described above, characterized in that The capsule housing assembly (310) is further provided with an air guide hole (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 guide hole (313) is used to communicate the air pressure chamber (302) with the external atmosphere.

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