Oral cleaning solution capsule and oral irrigator

Abstract

The utility model discloses an oral cavity cleaning solution capsule which is used for being installed in a capsule containing cavity of a water pick and comprises a capsule shell assembly, a movable part, a piston assembly and a connecting shell. An oral cavity cleaning liquid containing cavity is formed between the inner wall of the movable part and the inner wall of the capsule shell assembly, the capsule shell assembly is further provided with a piston cavity, the piston cavity is communicated with the oral cavity cleaning liquid containing cavity and used for being communicated with a liquid outlet of the oral irrigator, and the piston assembly is arranged in the piston cavity in a sliding mode; the connecting shell is provided with a sliding cavity, and the capsule shell assembly is arranged in the sliding cavity in a sliding mode. When the capsule shell assembly slides inwards along the sliding cavity under the action of external force, the piston assembly slides towards the interior of the piston cavity, so that the oral cavity cleaning liquid in the piston cavity is sprayed out along the liquid outlet of the oral irrigator; when the capsule shell assembly is reset to the initial position, the movable part moves in the direction facing the piston assembly under the action of the atmospheric pressure and the hydraulic pressure difference in the oral cavity cleaning liquid containing cavity.

Description

Technical Field

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

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

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

[0004] Therefore, the utility model provides an oral cavity cleaning liquid capsule and a dental irrigator, which can effectively solve the above problems, and have the advantages of simple structure, convenient use and good cleaning effect. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an oral cavity cleaning liquid capsule and a dental irrigator, which have simple structures, are convenient to use and have good cleaning effects.

[0006] The present utility model discloses an oral cleaning liquid capsule, which is used to be installed in a capsule accommodating cavity of a water flosser. The oral cleaning liquid capsule includes a capsule housing assembly, a movable member, a piston assembly and a connecting housing. The movable member is movably arranged in the capsule housing assembly. An oral cleaning liquid accommodating cavity is formed between the inner wall of the movable member and the inner wall of the capsule housing assembly. The capsule housing assembly is further provided with a piston cavity, which communicates with the oral cleaning liquid accommodating cavity and is used to communicate with the liquid outlet of the water flosser. The piston assembly is slidably arranged in the piston cavity. The connecting housing is provided with 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 an external force, the piston assembly slides towards the inside of the piston cavity to spray the oral cleaning liquid in the piston cavity out along the liquid outlet of the water flosser. When the capsule housing assembly resets to the initial position, the movable member moves in the direction towards the piston assembly under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid accommodating cavity.

[0007] As an improvement of the present utility model, it 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.

[0008] 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.

[0009] 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 connecting housing and is inserted into the piston cavity, and the piston rod is slidably inserted into the piston cavity.

[0010] 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.

[0011] As an improvement of the present utility model, it further includes a first one-way valve. The capsule housing assembly is provided with a first communication hole, which 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.

[0012] As an improvement of the present utility model, it further includes a seal. The piston rod is further provided with a second through hole, which 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.

[0013] As an improvement of the present utility model, the capsule housing assembly is further provided with an air vent hole. An air pressure chamber is formed between the inner wall of the movable member and the inner wall of the capsule housing assembly. The air vent hole is used to communicate the air pressure chamber with the external atmosphere.

[0014] As an improvement of the present utility model, the surface of the oral cleaning liquid capsule is provided with a card slot, and a clamping assembly is arranged inside the housing. The clamping end of the clamping assembly passes through the inner wall of the capsule accommodating chamber of the housing and is detachably clamped in the card slot.

[0015] The present utility model also discloses a dental irrigator, including:

[0016] A housing, a water storage chamber is arranged inside the housing, and a liquid outlet communicated with the water storage chamber is arranged at the bottom of the water storage chamber. A capsule accommodating chamber is arranged at the bottom of the housing;

[0017] The oral cleaning liquid capsule as described above, an oral cleaning liquid accommodating chamber is arranged inside the oral cleaning liquid capsule. The oral cleaning liquid capsule is detachably inserted into the capsule accommodating chamber, and 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.

[0018] Wherein, a pumping assembly is further included. The pumping assembly is arranged inside the housing. The liquid suction port of the pumping assembly extends and is arranged near the liquid outlet at the bottom of the water storage chamber. The pumping assembly is used to suck the liquid and spray the liquid out along the nozzle.

[0019] 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, and 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 card slot. The pressing member is used to drive the clamping member to detach from the card slot under the external pressing force.

[0020] 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.

[0021] As an improvement of the present utility model, there are two clamping assemblies, and the two clamping assemblies are arranged inside the housing and are respectively located on both sides of the capsule accommodating chamber.

[0022] 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, a first end of the third elastic member abuts against the housing, a 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.

[0023] 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, and 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.

[0024] 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.

[0025] 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.

[0026] As an improvement of the present utility model, it further includes a locking component, the locking component includes a locking member and a fourth elastic member, a first end of the fourth elastic member abuts against the bottom shell, a second end of the fourth elastic member abuts against the locking member, and the locking member locks the upper housing.

[0027] As an improvement of the present utility model, the upper housing is provided with a locking groove, and the locking part of the locking member is detachably clamped in the locking groove.

[0028] As an improvement of the present utility model, the bottom shell is provided with a slot, the detachment part of the locking member passes out along the slot, and the detachment part of the locking member is used for the user to press so that the locking part of the locking member detaches from the locking groove.

[0029] As an improvement of the present utility model, it further includes a second one-way valve, a first abutting block is formed by the housing extending downward along the edge of the liquid outlet, 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, and 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] In this embodiment, the liquid injection cover is provided with a first buckle towards the sealing block, and the edge of the liquid injection port is provided with a second buckle, and the first buckle is snap-fitted to the second buckle.

[0042] As an improvement of the present utility model, it further includes a control board, the control board 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.

[0043] As an improvement of the present utility model, it further includes a charging cover, and the charging cover is detachably covered on the charging port.

[0044] As an improvement of the present utility model, an insertion groove is provided at the edge of the upper shell near the charging port, and the insertion groove is used for a user's finger to insert.

[0045] As an improvement of the present utility model, the surface of the upper shell is provided with a friction holding part, and the friction holding part is provided with friction lines.

[0046] 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 at the upper part of the upper shell.

[0047] As an improvement of the present utility model, the bottom shell is provided with a water leakage groove, and the water leakage groove communicates with the internal space of the bottom shell.

[0048] The beneficial effects of the present utility model are: through the setting of the above structure, during use, when pressing the capsule housing assembly, the capsule housing assembly and the movable part move towards the sliding cavity along the force direction. At this time, the piston assembly slides towards the piston cavity, the pressure in the oral cleaning liquid containing cavity increases, and the oral cleaning liquid flows from the oral cleaning liquid containing cavity into the piston cavity, and then flows into the water storage cavity along the liquid outlet, and the operation is simple; when the capsule housing assembly resets, the piston assembly slides in the direction away from the piston cavity, the pressure in the oral cleaning liquid containing cavity becomes smaller, and the atmospheric pressure drives the movable part to move inward along the axis direction of the oral cleaning liquid capsule to keep the pressure in the oral cleaning liquid containing cavity stable. Description of the Drawings

[0049] 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 be obtained based on these drawings.

[0050] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0051] Figure 1It is a schematic diagram of the overall structure of the present utility model;

[0052] Figure 2 It is a first schematic diagram of the disassembled state of the oral cleaning liquid capsule of the present utility model;

[0053] Figure 3 It is a first schematic diagram of the disassembled state of the oral cleaning liquid capsule of the present utility model;

[0054] Figure 4 It is a schematic diagram of the disassembled state of the upper shell and the bottom shell of the present utility model;

[0055] 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;

[0056] Figure 6 It is a schematic diagram of the sectional structure of the present utility model;

[0057] Figure 7 It is Figure 6 An enlarged view of area A;

[0058] Figure 8 It is Figure 6 An enlarged view of area B;

[0059] Figure 9 It is Figure 6 An enlarged view of area C;

[0060] Figure 10 It is a sectional view of the oral cleaning liquid capsule of the present utility model in the pressed state;

[0061] Figure 11 It is Figure 10 An enlarged view of area D;

[0062] Figure 12 It is a sectional view of the oral cleaning liquid capsule of the present utility model in the released state;

[0063] Figure 13 It is a schematic diagram of the structure of the lock component of the present utility model;

[0064] Figure 14 It is a schematic diagram of the structure of the second one-way valve of the present utility model;

[0065] Figure 15 It is a first exploded structure diagram of the bottom shell and the oral cleaning liquid capsule of the present utility model;

[0066] Figure 16 It is a second exploded structure diagram of the bottom shell and the oral cleaning liquid capsule of the present utility model;

[0067] Figure 17 It is Figure 16Enlarged view at position E of the circle

[0068] Figure 18 It is a partial schematic view of the present utility model Specific implementation mode

[0069] Referring to Figures 1 to 18 Figures 1 to 18 , an oral cleaning liquid capsule for being installed in a capsule accommodating cavity 103 of a dental irrigator, comprising a capsule housing assembly 310, a movable member 320, a piston assembly 330 and a connecting housing 340. The movable member 320 is movably arranged in the capsule housing assembly 310. An oral cleaning liquid accommodating cavity 301 is formed between the inner wall of the movable member 320 and the inner wall of the capsule housing assembly 310. The capsule housing assembly 310 is further provided with a piston cavity 311 which communicates with the oral cleaning liquid accommodating cavity 301 and is used for communicating with a liquid outlet 102 of the dental irrigator. The piston assembly 330 is slidably arranged in the piston cavity 311. The connecting housing 340 is provided with a sliding cavity 341, and the capsule housing assembly 310 is slidably arranged in the sliding cavity 341. When the capsule housing assembly 310 slides inwards along the sliding cavity 341 under an external force, the piston assembly 330 slides towards 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 dental irrigator. When the capsule housing assembly 310 resets to the initial position, the movable member 320 moves in the direction towards the piston assembly 330 under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid accommodating cavity 301

[0070] With the above structure, during use, when pressing the capsule housing assembly 310, the capsule housing assembly 310 and the movable member 320 move towards the inside of the sliding cavity 341 along the force application direction. At this time, the piston assembly 330 slides towards the inside of the piston cavity 311, the pressure in the oral cleaning liquid accommodating cavity 301 increases, and the oral cleaning liquid flows from the oral cleaning liquid accommodating 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 accommodating cavity 301 becomes smaller, and the atmospheric pressure drives the movable member 320 to move inwards along the axial direction of the oral cleaning liquid capsule 300 to keep the pressure in the oral cleaning liquid accommodating cavity 301 stable

[0071] 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 the 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 returns to its original position, 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 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 to 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.

[0072] 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.

[0073] In this embodiment, the piston assembly 330 includes a fixed rod 331 and a piston rod 332. The fixed rod 331 abuts against the connection housing 340 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 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 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 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 connection channel 342 and the liquid outlet 102.

[0074] 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 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 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.

[0075] 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 into the piston cavity 311, the piston rod 332 moves with the capsule housing assembly 310 towards the fixing rod 331 until the piston rod 332 abuts against the fixing rod 331. At this time, the piston rod 332 continues to slide into the piston cavity 311 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.

[0076] 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 into the piston cavity 311, the piston rod 332 moves with the capsule housing assembly 310 towards the fixing rod 331 until the piston rod 332 abuts against the fixing rod 331. At this time, the piston rod 332 continues to slide into the piston cavity 311 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.

[0077] 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.

[0078] 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, when in 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 oral cleaning liquid capsule product is usually set with a narrow top and a wide bottom. By setting the oral cleaning liquid capsule 300 at the bottom of the housing 100, which generally refers to the part of the housing 100 below the vertical midline of the housing 100, a larger volume of the oral cleaning liquid capsule 300 can be allowed, thereby extending the use time of the product, reducing the frequency of replacing the oral cleaning liquid capsule 300, and improving the user experience.

[0079] In this embodiment, a card slot 303 is provided on the surface of the oral cleaning liquid capsule 300. The card slot 303 is used to allow the clamping component 400 in the oral irrigator to be clamped and used. Through the above structure, when in use, the oral cleaning liquid capsule 300 is inserted into the capsule containing chamber 103, and 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 and make 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 is easy to operate.

[0080] Refer to Figures 1 to 18 , an oral irrigator, comprising:

[0081] A housing 100, a water storage chamber 101 is provided in the housing 100 and a liquid outlet 102 communicating with the water storage chamber 101, the liquid outlet 102 is arranged at the bottom of the water storage chamber 101, and a capsule containing chamber 103 is provided at the bottom of the housing 100;

[0082] The oral cleaning liquid capsule 300 as described above is provided with an oral cleaning liquid containing cavity 301 therein. The oral cleaning liquid capsule 300 is detachably inserted into the capsule containing cavity 103. The axis of the direction of force on the oral cleaning liquid capsule intersects or projects and intersects with the axis in the vertical direction of the housing.

[0083] Wherein, it further includes a pumping assembly 200. The pumping assembly 200 is disposed within the housing 100. The liquid suction port 201 of the pumping assembly 200 extends and is disposed 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.

[0084] With the above structure arranged, 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 subjected to force, and the oral cleaning liquid therein is injected to the bottom of the water storage cavity 101. The pumping assembly 200 operates. 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 relatively high concentration of oral cleaning liquid at the bottom of the water storage cavity 101, and the cleaning effect of the product is better; in order to achieve stable center of gravity for the oral irrigator product, it is usually arranged with a narrower upper part and a wider lower part. Arranging the oral cleaning liquid capsule 300 at the bottom of the housing 100 allows for the use of a larger volume of the oral cleaning liquid capsule 300, thereby extending the usage time of the product and reducing the frequency of replacing the oral cleaning liquid capsule 300, which is convenient to use; and since the axis of the direction of force on the oral cleaning liquid capsule 300 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. When the user presses the oral cleaning liquid capsule 300, it is more labor-saving and convenient. The user can hold the product with one hand and use the palm to press the oral cleaning liquid capsule 300.

[0085] 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 disposed 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 card slot 303, and the pressing piece 420 is used to drive the clamping piece 410 to detach from the card slot 303 under an external force. Through the above structure, 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 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 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 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.

[0086] In this embodiment, the clamping component 400 further includes a transmission member 440. The first end of the transmission member 440 is rotatably connected to the pressing piece 420, the middle part 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 piece 410. Through the above structure, during use, when the pressing piece 420 is pressed, the second elastic piece 430 deforms, and the pressing piece 420 pushes the transmission member 440 inward to rotate around the middle part thereof, and the second end of the transmission member 440 drives the clamping piece 410 to move outward, so that the clamping end of the clamping piece 410 detaches from the card slot 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 member 440 to rotate around the middle part thereof, and the transmission member 440 pushes the pressing piece 420 to move outward, so that the pressing piece 420 resets to the initial position.

[0087] In this embodiment, there are two clamping components 400, and the two clamping components 400 are disposed in the housing 100 and are respectively located on both sides of the capsule accommodating cavity 103. Through the above structure, the two symmetrically arranged clamping components 400 can be respectively clamped in 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 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.

[0088] 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, and the second end of the third elastic member 510 abuts against the detachment bump 520. 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 make the oral cleaning liquid capsule 300 detach from the capsule accommodation cavity 103, which is convenient for the user to replace the oral cleaning liquid capsule 300.

[0089] 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.

[0090] 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. A water storage cavity 101 is formed between the upper housing 110 and the bottom shell 120. The capsule accommodation cavity 103 is arranged in the bottom shell 120. With the above structure, the upper housing 110 and the bottom shell 120 are detachably arranged, which allows the user to detach the bottom shell 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.

[0091] 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 structure, during use, 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.

[0092] 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 shell 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 shell 110. Through 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 shell 110, improving the connection stability between the upper shell 110 and the bottom shell 120.

[0093] In this embodiment, a locking groove 111 is provided on the upper shell 110. The locking portion 611 of the locking part 610 is detachably clamped in the locking groove 111. Through the above structure, the elastic force of the fourth elastic member 620 drives the locking part 610, so that the locking portion 611 of the locking part 610 is clamped in the locking groove 111, making the connection between the upper shell 110 and the bottom shell 120 stable.

[0094] In this embodiment, a slot 123 is provided on the bottom shell 120. The detaching portion 612 of the locking part 610 passes out along the slot 123. The detaching portion 612 of the locking part 610 is used for the user to press, so that the locking portion 611 of the locking part 610 is detached from the locking groove 111. Through the above structure, during use, when the detaching portion is pressed, the fourth elastic member 620 deforms, and the locking portion of the locking part 610 is detached from the locking 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 locking part 610 to be clamped in the locking groove 111, making the connection between the upper shell 110 and the bottom shell 120 stable.

[0095] 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 in 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 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 into the water storage cavity 101 unidirectionally along the liquid outlet 102. Through the above structure, during use, the second one-way valve 700 enables the oral cleaning liquid to only flow into the water storage cavity 101 unidirectionally 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. By 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, the second one-way valve 700 can be effectively fixed, improving the stability of the product. At the same time, the sealing performance of the product can also be improved 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 improving the sealing performance of the product and preventing water leakage.

[0096] 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 above structure, during use, by inserting the insertion block 702 into the insertion slot 126, at this time, the outer surface of the insertion block 702 fits on 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 fits on the inner wall surface of the insertion slot 126, which can further enhance the sealing performance of the product.

[0097] In this embodiment, the insertion block 702 is provided with a limiting platform 703, and the end face of the inner side wall of the insertion slot 126 abuts against the limiting platform 703. Through the above structural arrangement, during use, the insertion block 702 is inserted along the insertion slot 126 until the end face 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, making the product connection more stable. At the same time, the end face 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 be in interference fit with the upper surface of the abutting platform 701, further improving the sealing performance and stability of the product.

[0098] 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 structural arrangement, the liquid outlet 102 is provided at the top of the convex portion 128, increasing the contact area between the oral cleaning liquid flowing out of the liquid outlet 102 and the water body. The oral cleaning liquid can quickly spread into the water in the water storage cavity 101, making the cleaning effect of the product better and more stable.

[0099] 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. The liquid suction port 201 of the pumping assembly 200 extends into the suction space. Through the above structural arrangement, 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 completely, improve the suction efficiency of the pumping assembly 200, prevent liquid accumulation, and improve the liquid utilization efficiency.

[0100] 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 structural arrangement, 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.

[0101] In this embodiment, the observation window includes a front observation window unit 1131 and a rear observation window unit 1132. 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 two 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.

[0102] 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; when in 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.

[0103] 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 it from the liquid injection port 107, water can be injected into the water storage cavity 101 through the liquid injection port 107; when in use, rotate the liquid injection cover 140 to the covering position, and 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, it further includes a second sealing ring 150. A protruding sealing block 142 is provided on one 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] In this embodiment, an insertion groove 115 is provided at the edge of the upper housing 110 close to the charging port 109. The insertion groove 115 is used for the 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.

[0111] 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.

[0112] 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 moderate, facilitating the user to hold.

[0113] 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 the growth of bacteria. Preferably, the water leakage groove 129 is provided at the bottom of the bottom shell 120.

[0114] As described above, one or more implementation manners are provided in combination with specific content, 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 cleaning liquid capsule (300), the oral cleaning liquid capsule being installed in a capsule receiving chamber (103) of an oral irrigator, characterized in that: The invention comprises a capsule shell component (310), a piston component (330) and a connecting shell (340), wherein the capsule shell component (310) is provided with an oral cleaning liquid containing chamber (301), the capsule shell component (310) is further provided with a piston chamber (311), the piston chamber (311) is connected to the oral cleaning liquid containing chamber (301) and is used to be connected to a liquid outlet (102) of the oral irrigator, 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.

2. The oral cleaning liquid capsule according to claim 1, characterized in that: The invention also comprises a movable part (320), wherein the movable part (320) is movably arranged in the capsule shell assembly (310), and the oral cleaning liquid holding chamber (301) is formed between the inner wall of the movable part (320) and the inner wall of the capsule shell assembly (310), and 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 holding chamber (301).

3. The oral cleaning liquid capsule according to claim 1, 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).

4. The oral cleaning liquid capsule according to claim 1, 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).

5. The oral cleaning liquid capsule according to claim 4, characterized in that: The piston assembly (330) comprises a fixed rod (331) and a piston rod (332); the fixed rod (331) abuts against the connecting housing (340) and is inserted into the piston chamber (311); and the piston rod (332) is slidably inserted into the piston chamber (311).

6. The oral cleaning liquid capsule according to claim 5, 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.

7. The oral cleaning liquid capsule according to claim 5, characterized in that: The capsule shell assembly (310) further comprises a first one-way valve (360). The capsule shell assembly (310) is provided with a first connecting hole (312). The first connecting hole (312) allows the oral cleaning liquid containing chamber (301) to communicate with the piston chamber (311). The first one-way valve (360) is arranged in the first connecting hole (312). The first one-way valve (360) is used to allow the oral cleaning liquid to flow from the oral cleaning liquid containing chamber (301) to the piston chamber (311) in one direction.

8. The oral cleaning liquid capsule according to claim 6, characterized in that: It also includes a sealing member (370), and the piston rod (332) is also provided with a second through hole (3322), and the second through hole (3322) allows the piston chamber (311) to communicate with the piston rod channel (3321), and the sealing member (370) can be slidably mounted on the piston rod (332) and cover or open the second through hole (3322).

9. The oral cleaning liquid capsule according to claim 2, characterized in that: The capsule shell component (310) is also provided with an air guide hole (313), and an air pressure chamber (302) is formed between the inner wall of the movable part (320) and the inner wall of the capsule shell component (310), and the air guide hole (313) is used to connect the air pressure chamber (302) and the external atmosphere.

10. A water flosser, characterized in that: The invention comprises an oral cleaning liquid capsule (300) as claimed in any one of claims 1 to 9 and a shell (100), wherein the shell (100) is provided with a water storage chamber (101) and a liquid outlet (102) connected to the water storage chamber (101), the liquid outlet (102) is arranged at the bottom of the water storage chamber (101), and the shell (100) is provided with a capsule accommodating chamber (103) at the bottom, and the oral cleaning liquid capsule (300) is detachably inserted into the capsule accommodating chamber (103).

Images