Upper shell of oral irrigator and oral irrigator

Abstract

The utility model discloses an upper shell of a water pick, the upper shell is used for being connected with a bottom shell of the water pick to form the whole shell and a water storage cavity in the shell, a transparent observation window is arranged at the bottom of the side wall of the upper shell, the observation window is used for allowing a user to observe the liquid level position in the water storage cavity, 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 arranged on the front side and the rear side of the upper shell respectively. The utility model further discloses a water toothpick. Through the arrangement of the structure, during use, a user can observe the liquid level position in the water storage cavity through the observation window, so that the user can know the working state of the product in time and add water in time, and the user experience is better; meanwhile, the pumping assembly can be prevented from idling, and the service life of the product is prolonged; the front observation window unit and the rear observation window unit are arranged respectively, so that a user can observe the liquid level position in the water storage cavity from the front side and the rear side of the product, and the water heater is convenient to use and attractive in appearance.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cavity cleaning, in particular to an upper shell of a dental irrigator 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, existing dental irrigators generally cooperate with oral cavity cleaning solutions, etc. Among them, the products using capsules to supplement oral cavity cleaning solutions are convenient to use and can continuously and conveniently supplement oral cavity cleaning solutions.

[0003] When using a dental irrigator product, it is necessary to observe the liquid level position in the dental irrigator to understand the working condition of the product. In the prior art, there is a way to add a mouthwash capsule in the dental irrigator, and then set a liquid level observation groove in the mouthwash capsule to observe the liquid level of the mouthwash in the mouthwash capsule, so as to replace it when the mouthwash is less. However, in this way, if the mouthwash capsule is arranged in the body shell of the dental irrigator, the liquid level situation of the mouthwash cannot be observed. And in this case, only the liquid level position in the mouthwash capsule can be observed, and the liquid level position in the water storage cavity cannot be accurately observed. When in use, it is very easy to have the situation that the motor is still working when the liquid is used up, resulting in the motor idling and reducing the service life of the product.

[0004] Therefore, the utility model provides an upper shell of a dental irrigator and a dental irrigator, which can effectively solve the above problems, and has a simple structure and can intuitively observe the liquid level position in the water storage cavity. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an upper shell of a dental irrigator and a dental irrigator, which has a simple structure and can intuitively observe the liquid level position in the water storage cavity.

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

[0007] The utility model discloses an upper shell of a dental irrigator. The upper shell is used for connecting to the bottom shell of the dental irrigator to form the whole shell and the water storage cavity in the shell. Among them, a transparent observation window is arranged at the bottom of the side wall of the upper shell, and the observation window is used to allow a user to observe the liquid level position in the water storage cavity.

[0008] As an improvement of the utility model, the observation window includes 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] As an improvement of the utility model, the liquid filling cover is provided with a first buckle close to the sealing block, and the edge of the liquid filling port is provided with a second buckle, and the first buckle is snap-connected to the second buckle.

[0015] As an improvement of the present invention, it also includes a control board and a pumping assembly, the control board is arranged in 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 terminal in the charging port is electrically connected to the control board.

[0016] As an improvement of the utility model, it further comprises a charging cover, and the charging cover is detachably covered on the charging port.

[0017] 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 inserting a user's finger.

[0018] As an improvement of the present invention, a friction gripping portion is provided on the surface of the upper shell, and the friction gripping portion is provided with friction lines.

[0019] As an improvement of the present invention, the upper shell is narrow at the top and wide at the bottom, and the friction gripping portion is arranged at the upper portion of the upper shell.

[0020] The present utility model also discloses a dental irrigator, which includes the upper shell and the bottom shell as described above. The bottom shell is detachably connected to the upper shell to form the entire shell, and a water storage cavity is formed between the upper shell and the bottom shell.

[0021] As an improvement of the present utility model, it further includes an oral cleaning liquid capsule. An outlet is provided in the shell and is communicated with the water storage cavity. The outlet is arranged at the bottom of the water storage cavity. The pumping assembly is arranged in the shell, and the liquid suction port of the pumping assembly extends to be near the outlet at the bottom of the water storage cavity. The pumping assembly is used for sucking liquid and spraying the liquid along the nozzle. The oral cleaning liquid capsule is provided with an oral cleaning liquid accommodating cavity, and the oral cleaning liquid capsule is arranged at the bottom of the shell. The oral cleaning liquid accommodating cavity is communicated with the outlet. The oral cleaning liquid capsule is used for driving the oral cleaning liquid in the oral cleaning liquid accommodating cavity to enter the water storage cavity through the outlet under the action of an external force. The axis where the force application direction of the oral cleaning liquid capsule is located intersects or projects and intersects with the axis in the vertical direction of the shell.

[0022] As an improvement of the present utility model, the oral cleaning liquid capsule includes a capsule shell assembly, a piston assembly and a connecting shell. The capsule shell assembly is provided with an oral cleaning liquid accommodating cavity, and the capsule shell assembly is further provided with a piston cavity. The piston cavity is communicated with the oral cleaning liquid accommodating cavity and is used for being communicated with the outlet of the dental irrigator. The piston assembly is slidably arranged in the piston cavity. The connecting shell is provided with a sliding cavity, and the capsule shell assembly is slidably arranged in the sliding cavity. When the capsule shell assembly slides inward along the sliding cavity under the action of an external force, the piston assembly slides towards the piston cavity to spray the oral cleaning liquid in the piston cavity along the outlet of the dental irrigator. It further includes a movable member, which is movably arranged in the capsule shell assembly. An oral cleaning liquid accommodating cavity is formed between the inner wall of the movable member and the inner wall of the capsule shell assembly. The movable member moves along the direction towards the piston assembly under the action of atmospheric pressure and the hydraulic pressure difference in the oral cleaning liquid accommodating cavity.

[0023] 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 shell assembly, and the second end of the first elastic member abuts against the inner wall of the sliding cavity.

[0024] As an improvement of the present utility model, the connecting shell is provided with a connecting channel. The first end of the connecting channel is communicated with the piston cavity, and the second end of the connecting channel is communicated with the outlet.

[0025] 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.

[0026] 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 cavity, the piston rod channel, the connection channel, and the liquid outlet are communicated in sequence.

[0027] 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 containing 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 containing cavity into the piston cavity.

[0028] As an improvement of the present utility model, the oral cleaning liquid capsule further includes a sealing member. The piston rod is further provided with a second through hole, and the second through hole allows the piston cavity to communicate with the piston rod channel. The sealing member is slidably sleeved on the piston rod and covers or opens the second through hole.

[0029] As an improvement of the present utility model, the capsule housing assembly is further provided with an air guide hole. An air pressure cavity is formed between the inner wall of the movable member and the inner wall of the capsule housing assembly, and the air guide hole is used to communicate the air pressure cavity with the external atmosphere.

[0030] As an improvement of the present utility model, a capsule containing cavity is provided at the bottom of the housing, and the oral cleaning liquid capsule is detachably inserted into the capsule containing cavity.

[0031] As an improvement of the present utility model, the surface of the oral cleaning liquid capsule is provided with a card slot, and a card connection assembly is arranged in the housing. The card connection end of the card connection assembly passes through the inner wall of the capsule containing cavity of the housing and is detachably connected to the card slot.

[0032] As an improvement of the present utility model, the card connection assembly includes a card connection member, a pressing member, and a second elastic member. The housing is provided with a key hole, the pressing member is arranged in the key hole, the first end of the second elastic member abuts against the pressing member, the second end of the second elastic member abuts against the card connection member, and the elasticity of the second elastic member drives the card connection member to be inserted into the card slot. The pressing member is used to drive the card connection member to detach from the card slot under the pressing of an external force.

[0033] 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.

[0034] As an improvement of the present utility model, there are two clamping assemblies, and the two clamping assemblies are arranged in the housing and are respectively located on both sides of the capsule accommodating cavity.

[0035] As an improvement of the present utility model, it further includes a detachment assembly. The detachment assembly includes a third elastic member and a detachment bump. There is an opening 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.

[0036] 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.

[0037] As an improvement of the present utility model, it further includes a first sealing ring. There is a first sealing groove on 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 shell.

[0038] As an improvement of the present utility model, it further includes a locking assembly. The locking assembly includes a locking member and a fourth elastic member. The first end of the fourth elastic member abuts against the bottom shell, the second end of the fourth elastic member abuts against the locking member, and the locking member locks the upper shell.

[0039] As an improvement of the present utility model, the upper shell is provided with a locking groove, and the locking portion of the locking member is detachably clamped in the locking groove.

[0040] As an improvement of the present utility model, the bottom shell is provided with a slot, and the detachment portion of the locking member passes out along the slot. The detachment portion of the locking member is used for the user to press so that the locking portion of the locking member detaches from the locking groove.

[0041] 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 provided inside the housing. The second abutting block is arranged towards the first abutting block. The second one-way valve is provided with an abutting platform. The first abutting block abuts on the upper surface of the abutting platform, and the second abutting block abuts on 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.

[0042] As an improvement of the present utility model, the second abutting block is provided with an insertion slot, and the second one-way valve is provided with an insertion block. The insertion block extends downward along the lower surface of the abutting platform, and the insertion block is inserted into the insertion slot.

[0043] As an improvement of the present utility model, the insertion block is provided with a limiting platform, and the end face of the inner side wall of the insertion slot abuts on the limiting platform.

[0044] As an improvement of the present utility model, a protruding portion is formed by upward protrusion on the upper surface of the bottom shell near the liquid outlet, and the liquid outlet is arranged at the top of the protruding portion.

[0045] As an improvement of the present utility model, the upper surface of the bottom shell is inclined, and a suction space is formed between the protruding portion and the lowest side of the upper surface of the bottom shell. The liquid suction port of the pumping assembly extends into the suction space.

[0046] 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 inner space of the bottom shell.

[0047] The beneficial effects of the present utility model are as follows: Through the setting of the above structure, during use, the user can observe the liquid level position in the water storage cavity through the observation window, enabling the user to timely understand the working state of the product and add water in a timely manner, thus improving the user experience. At the same time, it can prevent the pumping assembly from idling and extend the service life of the product. The two separately provided front observation window units and rear observation window units allow the user to observe the liquid level position in the water storage cavity on both the front side and the rear side of the product, facilitating the user's use. Moreover, the appearance of the product is more beautiful. Preferably, the front observation window unit is generally a trapezoid with rounded corners at the four corners, the rear observation window unit is generally a trapezoid with rounded corners at the four corners, the ratio of the area of the front observation window unit to the area of the rear observation window unit is about 1.2 - 1.8, and the front observation window unit and the rear observation window unit are oppositely arranged. Description of the Drawings

[0048] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments. The accompanying 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 accompanying drawings can be obtained based on these drawings.

[0049] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0050] Figure 1 is the overall structural schematic diagram of the present utility model;

[0051] Figure 2 is the first structural schematic diagram of the oral cleaning liquid capsule in the disassembled state of the present utility model;

[0052] Figure 3 is the first structural schematic diagram of the oral cleaning liquid capsule in the disassembled state of the present utility model;

[0053] Figure 4 is the structural schematic diagram of the upper shell and the bottom shell in the disassembled state of the present utility model;

[0054] 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;

[0055] Figure 6 is the sectional structural schematic diagram of the present utility model;

[0056] Figure 7 is Figure 6 the enlarged view of area A;

[0057] Figure 8 is Figure 6 the enlarged view of area B;

[0058] Figure 9 is Figure 6 the enlarged view of area C;

[0059] Figure 10 is the sectional view of the oral cleaning liquid capsule in the pressed state of the present utility model;

[0060] Figure 11 is Figure 10 the enlarged view of area D;

[0061] Figure 12 is the sectional view of the oral cleaning liquid capsule in the released state of the present utility model;

[0062] Figure 13 is the structural schematic diagram of the locking component of the present utility model;

[0063] Figure 14It is a schematic structural diagram of the second one-way valve of the present utility model;

[0064] Figure 15 It is a first exploded structural diagram of the bottom shell of the present utility model and the oral cleaning liquid capsule;

[0065] Figure 16 It is a second exploded structural diagram of the bottom shell of the present utility model and the oral cleaning liquid capsule;

[0066] Figure 17 is Figure 16 an enlarged view of the position at circle E;

[0067] Figure 18 It is a partial schematic diagram of the present utility model. Specific embodiments

[0068] Referring to Figures 1 to 18 , an upper shell of a dental irrigator, the upper shell 110 is used to connect to the bottom shell 120 of the dental irrigator to form the entire shell 100 and the water storage cavity 101 inside the shell 100. Among them, 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.

[0069] Among them, 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 shell 110.

[0070] 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; the two separately arranged front observation window unit 1131 and rear observation window unit 1132 allow the user to observe the liquid level position in the water storage cavity 101 on both the front and rear sides of the product, facilitating the user's use; and 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.

[0071] In this embodiment, it further includes a liquid injection cover 140. The upper housing 110 is provided with a liquid injection port 107, and the liquid injection port 107 communicates with the water storage cavity 101. The liquid injection cover 140 is detachably covered on the liquid injection port 107. Through the above structural arrangement, by opening the liquid injection cover 140, water can be injected into the water storage cavity 101 through the liquid injection port 107, which is convenient for 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.

[0072] In this embodiment, a rotating shaft hole 114 is provided at the upper housing 110 near the liquid injection port 107. A rotating shaft 141 is provided at the connecting end of the liquid injection cover 140, and the rotating shaft 141 is rotatably inserted into the rotating shaft hole 114 so that the liquid injection cover 140 is detachably covered on the liquid injection port 107. Through the above structural arrangement, by rotating the liquid injection cover 140 to detach the liquid injection cover 140 from the liquid injection port 107, water can be injected into the water storage cavity 101 through the liquid injection port 107; and during use, by rotating the liquid injection cover 140 to the covering position, the liquid injection cover 140 is covered on the liquid injection port 107 to prevent water from flowing out and improve the sealing performance of the product.

[0073] 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. 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.

[0074] In this embodiment, a receiving groove 108 is formed by inward depression at the upper housing 110 near the liquid injection port 107. When the liquid injection cover 140 is covered on the liquid injection port 107, the liquid injection cover 140 is basically received in the receiving groove 108. Through the above structural arrangement, when the liquid injection cover 140 is covered on the liquid injection port 107, the liquid injection cover 140 is basically received in the receiving groove 108. At this time, the outer surface of the liquid injection cover 140 is basically flush with the upper housing 110. On the one hand, it makes the appearance of the product more beautiful, and on the other hand, it also prevents the liquid injection cover 140 from being opened due to being scratched by the user, improving the stability of the product.

[0075] 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.

[0076] 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.

[0077] In this embodiment, a control board 800 and a pumping assembly 200 are also included. The control board 800 is arranged in the upper housing 110, and 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.

[0078] 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.

[0079] In this embodiment, the upper shell 110 is provided with an insertion slot 115 near the edge of the charging port 109, and the insertion slot 115 is used for inserting a user's finger. Through the above-mentioned structure, the insertion slot 115 is provided, which can facilitate the user to insert a finger into the insertion slot 115, and then open the charging cover 160, which is convenient for the user to operate.

[0080] In this embodiment, the upper shell 110 is provided with a friction gripping portion 116, and the friction gripping portion 116 is provided with friction lines. Through the above-mentioned structure, the friction lines at the friction gripping portion 116 can increase the friction coefficient, making the user hold the product more stable, and at the same time, making the product appearance more beautiful.

[0081] In this embodiment, the upper housing 110 is narrow at the top and wide at the bottom, and the friction gripping portion 116 is provided on the upper part of the upper housing 110. Through the above structural arrangement, the friction gripping portion 116 is provided on the upper part of the upper housing 110, where the thickness of the upper housing 110 is appropriate, facilitating the user's grip.

[0082] Refer to Figures 1 to 18 , a dental irrigator, including the upper housing 110 and the bottom housing 120 as described above. The bottom housing 120 is detachably connected to the upper housing 110 to form the entire housing 100, and a water storage cavity 101 is formed between the upper housing 110 and the bottom housing 120.

[0083] Through the above structural arrangement, the upper housing 110 and the bottom housing 120 are detachably arranged, allowing the user to detach the bottom housing 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.

[0084] In this embodiment, it further includes an oral cleaning liquid capsule 300. An outlet 102 communicating with the water storage cavity 101 is provided in the housing 100, and the outlet 102 is arranged at the bottom of the water storage cavity 101; the pumping assembly 200 is arranged in the housing 100, and the liquid suction port 201 of the pumping assembly 200 extends to be near the 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; 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 outlet 102, and the oral cleaning liquid capsule 300 is used to drive the oral cleaning liquid in the oral cleaning liquid accommodation cavity 301 to enter the water storage cavity 101 through the outlet 102 under the action of an external force, and the axis of the direction of the force on the oral cleaning liquid capsule 300 intersects or projects and intersects with the axis of the vertical direction of the housing 100.

[0085] 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, and the liquid suction port 201 of the pumping assembly 200 extends to the bottom of the water storage chamber 101, enabling it to suck the liquid with a higher concentration of oral cleaning liquid at the bottom of the water storage chamber 101, resulting in a better cleaning effect of the product. In order to ensure the stability of the center of gravity, the oral 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, which generally refers to the part below the vertical midline of the housing 100, a larger-volume oral cleaning liquid capsule 300 can be used, thereby extending the usage 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 intersects or projects to intersect with the vertical axis of the housing 100, no greater holding force needs to be provided when pressing the oral cleaning liquid capsule 300. The user can press the oral cleaning liquid capsule 300 more labor-savingly and conveniently. The user can hold the product with one hand and use the palm to press the oral cleaning liquid capsule 300.

[0086] In this embodiment, the axis of the force direction of the dental cleaning liquid capsule 300 intersects or projects to intersect with the axis of the vertical direction of the housing 100. 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 accommodation 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 accommodation 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. The capsule housing assembly 310 is slidably disposed in the sliding cavity 341. When the capsule housing assembly 310 slides inward along the sliding cavity 341 under an external force, the piston assembly 330 slides toward the inside of the piston cavity 311 to spray the oral cleaning liquid in the piston cavity 311 out along the liquid outlet 102 of the oral irrigator. It further includes a movable member 320. The movable member 320 is movably disposed in the capsule housing assembly 310. An oral cleaning liquid accommodation 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 accommodation cavity 301. Through the setting of the above structure, during use, when the capsule housing assembly 310 is pressed, the capsule housing assembly 310 and the movable member 320 move toward the inside of the sliding cavity 341 along the force direction. At this time, the piston assembly 330 slides toward the inside of the piston cavity 311, the pressure in the oral cleaning liquid accommodation cavity 301 increases, and the oral cleaning liquid flows from the oral cleaning liquid accommodation cavity 301 into the piston cavity 311 and then flows into the water storage cavity 101 along the liquid outlet 102, and 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 accommodation 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 accommodation cavity 301 stable.

[0087] 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, thereby causing the piston assembly 330 to slide toward the piston cavity 311. At this time, the first elastic member 350 is deformed under 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 move reciprocally more smoothly, making the user operation 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; while the first elastic member 350 can realize the reset of the capsule housing assembly 310, making the operation simpler.

[0088] In this embodiment, the connecting housing 340 is provided with a connecting channel 342. The first end of the connecting channel 342 communicates with the piston cavity 311, and the second end of the connecting channel 342 communicates with the liquid outlet 102. With the above structure, during use, when the capsule housing assembly 310 is pressed, the piston assembly 330 slides toward the piston cavity 311, the pressure in the oral cleaning liquid 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.

[0089] In this embodiment, the piston assembly 330 includes a fixing rod 331 and a piston rod 332. The fixing 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 fixing rod 331 slides towards the inside of the piston chamber 311, and 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 chamber 311 along with the fixing 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 fixing 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 fixing rod 331, and can adjust the pressure in the piston chamber 311 and the oral cleaning liquid accommodating chamber 301, so that the oral cleaning liquid can flow into the water storage chamber 101 along the connection channel 342 and the liquid outlet 102.

[0090] In this embodiment, the fixing rod 331 is provided with a fixing 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 fixing rod 331 slides towards the inside of the piston chamber 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 chamber 311 along with the fixing 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 fixing rod channel 3311 under the pressure drive and finally flows out along the liquid outlet 102.

[0091] 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 accommodation chamber 301 to communicate with the piston chamber 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 accommodation chamber 301 into the piston chamber 311. With the above structure, during use, when the fixing rod 331 slides into the piston chamber 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 into the piston chamber 311 along with the fixing rod 331, the first one-way valve 360 closes, and the pressure in the piston chamber 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 accommodation chamber 301 drives the oral cleaning liquid to flow into the piston chamber 311.

[0092] 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 chamber 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 chamber 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 into the piston chamber 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.

[0093] 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 stable 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.

[0094] In this embodiment, a capsule containing chamber 103 is provided at the bottom of the housing 100. The oral cleaning liquid capsule 300 is detachably inserted into the capsule containing chamber 103. Through the above structure, during use, the user can insert the oral cleaning liquid capsule 300 into the capsule containing chamber 103, which is convenient to use. And 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. Moreover, for the sake of the stability of the center of gravity of the dental irrigator product, it 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 midline of the housing 100, which allows the use of a larger volume of the oral cleaning liquid capsule 300, thereby extending the usage time of the product, reducing the frequency of replacing the oral cleaning liquid capsule 300, and improving the user experience.

[0095] In this embodiment, a card slot 303 is provided on the surface of the oral cleaning liquid capsule 300. 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 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 the operation is convenient.

[0096] In this embodiment, the clamping assembly 400 includes a clamping member 410, a pressing member 420, and a second elastic member 430. The housing 100 is provided with a keyhole 104. The pressing member 420 is disposed in the keyhole 104. The first end of the second elastic member 430 abuts against the pressing member 420, and the second end of the second elastic member 430 abuts against the clamping member 410. The elasticity of the second elastic member 430 drives the clamping member 410 to be inserted into the card slot 303, and the pressing member 420 is used to drive the clamping member 410 to be detached from the card slot 303 under an external force. With the above structure, during use, when the pressing member 420 is pressed, the second elastic member 430 deforms, and the pressing member 420 drives the clamping member 410 to move outward, and the clamping end of the clamping member 410 is detached from the card slot 303, so that the oral cleaning liquid capsule 300 can be conveniently separated from the capsule accommodating cavity 103; when the user releases the pressing member 420, the second elastic member 430 resets and drives the clamping member 410 to move inward, and the clamping end of the clamping member 410 is clamped in the card slot 303, so that the oral cleaning liquid capsule 300 can be stably connected to the capsule accommodating cavity 103, improving the stability of the product and being convenient for disassembly and assembly.

[0097] In this embodiment, the clamping assembly 400 further includes a transmission member 440. The first end of the transmission member 440 is rotatably connected to the pressing member 420, the middle of the transmission member 440 is rotatably connected to the housing 100, and the second end of the transmission member 440 is rotatably connected to the clamping member 410. With the above structure, during use, when the pressing member 420 is pressed, the second elastic member 430 deforms, and the pressing member 420 pushes the transmission member 440 to rotate around the middle thereof. The second end of the transmission member 440 drives the clamping member 410 to move outward, so that the clamping end of the clamping member 410 is detached from the card slot 303; when the user releases the pressing member 420, the second elastic member 430 resets and drives the clamping member 410 to move inward. At the same time, the clamping member 410 drives the transmission member 440 to rotate around the middle thereof, and the transmission member 440 pushes the pressing member 420 to move outward, so that the pressing member 420 resets to the initial position.

[0098] In this embodiment, there are two clamping assemblies 400, and the two clamping assemblies 400 are disposed in the housing 100 and are respectively located on both sides of the capsule accommodating cavity 103. With the above structure, the two symmetrically arranged clamping assemblies 400 can be respectively clamped to the card slots 303 on both sides of the oral cleaning liquid capsule 300, which can not only enhance the structural stability of the product, but also prevent the user from accidentally touching. The user needs to press the pressing members 420 of the two clamping assemblies 400 at the same time to separate the oral cleaning liquid capsule 300 from the capsule accommodating cavity 103.

[0099] In this embodiment, a detachment component 500 is further included. The detachment component 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. Through the above structure, during use, when the engaging member 410 of the engaging component 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 component 400 disengages from the card slot 303, the third elastic member 510 drives the detachment bump 520 to move towards the oral cleaning liquid capsule 300, and the detachment bump 520 pushes the oral cleaning liquid capsule 300 to enable the oral cleaning liquid capsule 300 to be detached from the capsule accommodation cavity 103, facilitating the user to replace the oral cleaning liquid capsule 300.

[0100] 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. Through the above structure, the two springs respectively abut against both ends of the detachment bump 520, enabling 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 enhancing the stability of the product.

[0101] 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 housing 110. Through the above structure, during use, when the bottom shell 120 is installed on the upper housing 110, at this time, the outer surface of the first sealing ring 130 abuts against the inner wall of the upper housing 110, and the inner surface and the upper and lower surfaces of the first sealing ring 130 are connected and 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 enhance the sealing performance of the product.

[0102] In this embodiment, a latch assembly 600 is further included. The latch assembly 600 includes a latch member 610 and a fourth elastic member 620. The first end of the fourth elastic member 620 abuts against the bottom case 120, and the second end of the fourth elastic member 620 abuts against the latch member 610. The latch member 610 is latched to the upper case 110. Through the arrangement of the above structure, the elastic force of the fourth elastic member 620 drives the latch member 610 to latch the upper case 110, improving the connection stability between the upper case 110 and the bottom case 120.

[0103] In this embodiment, the upper case 110 is provided with a latch groove 111, and the latching portion 611 of the latch member 610 is detachably clamped in the latch groove 111. Through the arrangement of the above structure, the elastic force of the fourth elastic member 620 drives the latch member 610 to make the latching portion 611 of the latch member 610 clamped in the latch groove 111, making the connection between the upper case 110 and the bottom case 120 stable.

[0104] In this embodiment, the bottom case 120 is provided with a slot 123, and the detaching portion 612 of the latch member 610 passes out along the slot 123. The detaching portion 612 of the latch member 610 is used for the user to press, so that the latching portion 611 of the latch member 610 is detached from the latch groove 111. Through the arrangement of the above structure, during use, when the detaching portion is pressed, the fourth elastic member 620 deforms, and the latching portion of the latch member 610 is detached from the latch groove 111, enabling the user to detach the bottom case 120 from the upper case 110; when the user releases the detaching portion, the fourth elastic member 620 resets and pushes the latching portion of the latch member 610 to be clamped in the latch groove 111, making the connection between the upper case 110 and the bottom case 120 stable.

[0105] 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 on the upper surface of the abutting platform 701, and the second abutting block 127 abuts on the lower surface of the abutting platform 701, so as to limit the second one-way valve 700 between the first abutting block 106 and the second abutting block 127. The second one-way valve 700 is used to allow the oral cleaning liquid to flow unidirectionally into the water storage cavity 101 along the liquid outlet 102. 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 on the upper surface of the abutting platform 701 and the second abutting block 127 on the lower surface of the abutting platform 701 can effectively fix the second one-way valve 700, improve the stability of the product, and at the same time, can also enhance the sealing performance of the product, preventing 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 and preventing water leakage.

[0106] 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 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.

[0107] 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. With the above structure, 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 fit over the upper surface of the abutting platform 701 in an interference fit, further improving the sealing and stability of the product.

[0108] 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. With 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 can quickly diffuse into the water in the water storage cavity 101, making the cleaning effect of the product better and more stable.

[0109] 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. With 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.

[0110] In this embodiment, the bottom shell 120 is provided with a water leakage groove 129, and the water leakage groove 129 communicates with the internal space of the bottom shell 120. With the above structure, 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 arranged at the bottom of the bottom shell 120.

[0111] As described above, one or more implementation manners are provided in combination with specific contents, and it is not determined that the specific implementation of the present invention is only limited to these descriptions. Any method, structure, etc. that is similar or identical to the present invention, or any technical deduction or replacement made on the premise of the concept of the present invention, should be regarded as the protection scope of the present invention.

Claims

1. An upper shell of a water flosser, the upper shell (110) being used to connect to a bottom shell (120) of the water flosser to form the entire shell (100) and a water storage chamber (101) in the shell (100), characterized in that: 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 a user to observe the liquid level position in the water storage chamber (101).

2. The upper shell of the oral irrigator according to claim 1, characterized in that: in, The observation window comprises 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 shell (110).

3. The upper shell of the oral irrigator according to claim 1, characterized in that: It also comprises a liquid injection cover (140), the upper shell (110) is provided with a liquid injection port (107), the liquid injection port (107) is connected to the water storage chamber (101), and the liquid injection cover (140) is detachably covered on the liquid injection port (107).

4. The upper shell of the oral irrigator according to claim 3, characterized in that: The upper shell (110) is provided with a rotating shaft hole (114) near the liquid injection port (107), and the connecting end of the liquid injection cover (140) is provided with a rotating shaft (141), and the rotating shaft (141) is rotatably inserted into the rotating shaft hole (114), so that the liquid injection cover (140) can be detachably covered on the liquid injection port (107).

5. The upper shell of the oral irrigator according to claim 4, characterized in that: It also includes a second sealing ring (150); the liquid injection cover (140) is provided with a protruding sealing block (142) on one side facing the upper shell (110); the sealing block (142) is provided with a second sealing groove (143); 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).

6. The upper shell of the oral irrigator according to claim 5, characterized in that: The upper shell (110) is recessed inward near the liquid injection port (107) to form a receiving groove (108); when the liquid injection cover (140) is covered on the liquid injection port (107), the liquid injection cover (140) is basically accommodated in the receiving groove (108); the free end of the liquid injection cover (140) is bent outward to form a toggle portion (144); when the liquid injection cover (140) is covered on the liquid injection port (107), a gap exists between the toggle portion (144) and the receiving groove (108).

7. The upper shell of the oral irrigator according to claim 5, characterized in that: The liquid injection cover (140) is provided with a first buckle (145) close to the sealing block (142), and a second buckle (117) is provided on the edge of the liquid injection port (107), and the first buckle (145) is buckled with the second buckle (117).

8. The upper shell of the oral irrigator according to claim 1, characterized in that: The invention also includes a control panel (800) and a pumping assembly (200), wherein the control panel (800) is arranged in the upper housing (110), and the pumping assembly (200) is electrically connected to the control panel (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 panel (800).

9. The upper shell of the oral irrigator according to claim 8, characterized in that: The invention also comprises a charging cover (160), wherein the charging cover (160) is detachably covered on the charging port (109); an insertion slot (115) is provided on the upper shell (110) near the edge of the charging port (109), and the insertion slot (115) is used for inserting a user's finger.

10. A dental flosser, comprising an upper shell (110) and a bottom shell (120) according to any one of claims 1 to 9, characterized in that: The bottom shell (120) is detachably connected to the upper shell (110) to form the entire shell (100), and a water storage chamber (101) is formed between the upper shell (110) and the bottom shell (120).

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