CN214208554U

CN214208554U - Tooth flushing device

Info

Publication number: CN214208554U
Application number: CN202022174358.XU
Authority: CN
Inventors: 王包承
Original assignee: Zhongshan Youkai Plastic Technology Co ltd
Current assignee: Zhongshan Youkai Health Technology Co.,Ltd.
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-09-17
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a tooth flushing device, include: the water delivery device comprises a shell, a water outlet pipe and a water outlet pipe, wherein the spray pipe is arranged on the shell, an accommodating cavity is arranged in the shell, a water delivery device is arranged in the accommodating cavity, and the water outlet end of the water delivery device is communicated with the spray pipe; the water storage tank is connected to the containing cavity, a first cavity and a second cavity are arranged on the water storage tank, the water inlet end of the water delivery device and the first cavity are communicated through the second cavity, a water supply hole is formed in the second cavity, the gargle tablets can be placed in the second cavity through the water supply hole, and a sealing cover covering the water supply hole is arranged on the water storage tank. Through being provided with the second cavity at the storage water tank for the second cavity has the function of placing the gargle tablet and being used for supplying water to the first cavity of storage water tank, and when water in the first cavity of water delivery device extraction got into the second cavity in, water and gargle tablet intensive mixing carried to the end of intaking of water delivery device, simple structure, and processing and assembly process are less, have improved production efficiency, have improved towards the holistic aesthetic property of tooth ware.

Description

Tooth flushing device

Technical Field

The utility model relates to a tooth washing device technical field, in particular to a tooth washing device.

Background

At present, the tooth flusher comprises a shell, a spray pipe and a water storage tank, wherein the shell is provided with a gargle tablet, the shell is provided with a water delivery device, the gargle tablet is mixed with water in the water storage tank through the water delivery device to form gargle with a peculiar smell removal function, and the gargle is conveyed to the outside through the spray pipe. However, the above structure has problems: the holding structure that is the casing and is used for placing gargle tablet is the equipment shaping, and corresponds holding structure department and seted up the through-hole on the casing, and this through-hole is used for getting gargle tablet and puts in holding structure, and there are processing and assembly process many in above-mentioned structure, and production efficiency is lower, and above-mentioned through-hole has destroyed the wholeness of casing, and then has influenced the holistic aesthetic property of tooth ware that dashes.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tooth flushing device, simple structure, processing and assembly process are less, have improved the holistic aesthetic property of tooth flushing device.

According to the utility model discloses towards tooth ware, include: the water delivery device comprises a shell, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the spray pipe is arranged on the shell, an accommodating cavity is formed in the shell, a water delivery device is arranged in the accommodating cavity, and the water outlet end of the water delivery device is communicated with the spray pipe; the water storage tank is connected with the accommodating cavity, a first cavity used for storing water and a second cavity communicated with the first cavity are arranged on the water storage tank, the water inlet end of the water delivery device is communicated with the first cavity through the second cavity, a water supply hole communicated with the outside is formed in the second cavity, the gargle tablet can pass through the water supply hole and be placed in the second cavity, and a sealing cover covering the water supply hole is arranged on the water storage tank.

According to the utility model discloses towards tooth ware has following beneficial effect at least: through being provided with the second cavity at the storage water tank for the second cavity has the function of placing the gargle tablet and being used for supplying water to the first cavity of storage water tank, and when water in the water delivery device extraction first cavity got into the second cavity in, water and gargle tablet intensive mixing carried to the end of intaking of water delivery device. Compared with the prior art, need not to install holding structure on the casing and carry out the trompil, simple structure, processing and assembly process are less, have improved production efficiency, have improved towards the holistic aesthetic property of tooth ware.

According to some embodiments of the utility model, first cavity with be provided with the first pore of intercommunication the two between the second cavity, the second cavity with be provided with the second pore of intercommunication the two between the water delivery device's the end of intaking, first pore is located the lower part of second cavity, the second pore corresponds first pore is located the upper portion of second cavity. The flow direction of water is for flowing to the end of intaking that carries to water delivery device to the top by the bottom of second cavity for water fully passes through whole second cavity, avoids appearing the dead angle, unable make full use of gargle tablet.

According to some embodiments of the invention, a filter screen is provided in the second chamber covering the first duct and the second duct. The situation that the first pore channel and the second pore channel are blocked by the gargling tablet, so that liquid cannot normally circulate is avoided, and the user experience is improved.

According to the utility model discloses a some embodiments, the closing cap rotationally set up connect in the storage water tank, be provided with on the closing cap stretch into to shutoff portion in the second cavity, the shutoff portion with be provided with the sealing member between the second cavity, improve sealed effect, and the user operation of being convenient for.

According to some embodiments of the utility model, water delivery device includes water delivery mechanism, circuit board and battery, water delivery mechanism has the water delivery chamber, the end of intaking in water delivery chamber communicate in the second cavity, the play water end in water delivery chamber communicate in the spray tube, water delivery mechanism the battery with the circuit board electricity is connected, just the circuit board water delivery mechanism with the battery set up side by side in proper order in the holding intracavity. The space in the accommodating cavity of the shell is reasonably utilized, the unnecessary volume is reduced, the structure is reasonable and compact, the longitudinal size of the tooth flushing device is reduced, and the cost is reduced.

According to some embodiments of the utility model, water delivery mechanism includes water delivery spare and toothed disc, driving motor, connecting rod and piston, the water delivery chamber set up in the water delivery spare, the toothed disc rotates the setting along vertical direction, driving motor is located the below of toothed disc and with the toothed disc transmission is connected, be provided with the eccentric wheel on the toothed disc, the connecting rod cover is located on the eccentric wheel, the piston set up in the upper end of connecting rod is located in the water delivery spare. The water storage tank is convenient to pump water and convey, the water outlet pressure of the spray pipe is high, tooth dirt can be effectively cleaned, the cleaning effect is good, and the transmission is reliable.

According to some embodiments of the invention, the spray tube is detachably arranged in the housing, and the housing is provided with a locking device for locking the spray tube.

According to some embodiments of the utility model, locking device includes locking piece, driving piece and is used for the drive the elastic construction that the locking piece resets, the locking piece slidable set up in the casing, the driving piece with the locking piece transmission is connected, the elastic construction is located the locking piece with between the casing, the elastic construction with form between the locking piece and be used for the locking the lockhole of spray tube, the driving piece can drive the locking piece removes to removing right the locking of spray tube. The spray pipe can be replaced and cleaned quickly, and the locking is reliable.

According to the utility model discloses a some embodiments, be provided with on the locking piece and be located second location arch in the keyhole, be provided with on the spray tube with the protruding joint complex second constant head tank in second location, the second location arch can be followed the locking piece removes to breaking away from the second constant head tank. The second positioning protrusion can move to be separated from the second positioning groove along with the locking piece. When the spray pipe is arranged on the tooth flusher, the second positioning bulge can be clamped into the second positioning groove of the spray pipe, and the elastic structure is arranged to limit the second positioning bulge to be separated from the second positioning groove, so that the spray pipe is fixed on the tooth flusher, and the normal tooth washing function is realized; when the spray pipe needs to be cleaned, the driving piece drives the locking piece to move, the elastic structure generates elastic deformation, the second positioning protrusion can move to be separated from the second positioning groove along with the locking piece, and the spray pipe can be detached from the tooth flushing device; after the spray pipe is detached, the locking piece is driven to reset through the elastic structure, and the use is convenient.

According to the utility model discloses a some embodiments, elastic construction with the locking piece configuration is the integral type structure, simple structure, and it is convenient to install, and save time has reduced manufacturing cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a tooth rinsing device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a schematic view of the nozzle and locking device;

reference numerals:

the device comprises a shell 10, an accommodating cavity 11, an upper barrel 12, a lower baffle 13, a first positioning bulge 14, a positioning column 15, a top cover 16 and a water drainage hole 17;

a spray pipe 20 and a second positioning groove 21;

the water delivery device 30, the water delivery mechanism 31, the water delivery part 311, the gear disc 312, the driving motor 313, the connecting rod 314, the piston 315, the eccentric wheel 316, the circuit board 32 and the battery 33;

a water storage tank 40, a first chamber 41, a second chamber 42, a water supply hole 421, a first hole 431, a second hole 432, an annular protrusion 441, an annular boss 442, an annular groove 443, a first positioning groove 45, and a recessed area 46;

the sealing cover 50, the sealing part 51, the annular concave surface 511 and the filter screen 60;

the locking piece 71, the second positioning protrusion 711, the mounting through hole 712, the first inclined surface 713, the driving piece 72, the second inclined surface 721, the elastic structure 73, the abutting part 731, the elastic part 732, and the locking hole 74.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, left, right, etc., referred to the orientation description is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1 to 4, the tooth rinsing device according to the embodiment of the present invention comprises: the water supply device comprises a shell 10, a spray pipe 20 is arranged on the shell 10, an accommodating cavity 11 is arranged in the shell 10, a water delivery device 30 is arranged in the accommodating cavity 11, an opening is formed in one end of the accommodating cavity 11, and the water outlet end of the water delivery device 30 is communicated with the spray pipe 20; a water storage tank 40 connected to the accommodating chamber 11, wherein the water storage tank 40 is provided with a first chamber 41 for storing water and a second chamber 42 communicated with the first chamber 41, the water inlet end of the water delivery device 30 and the first chamber 41 are communicated through the second chamber 42, the second chamber 42 is provided with a water supply hole 421 communicated with the outside, the gargle tablet can be placed in the second chamber 42 along the water supply hole 421, and the water storage tank 40 is provided with a cover 50 covering the water supply hole 421.

According to the utility model discloses tooth washing device through be provided with second chamber 42 at storage water tank 40 for second chamber 42 has the function of placing gargle tablet and being used for supplying water to the first chamber 41 of storage water tank 40, and when water in water delivery device 30 extraction first chamber 41 got into to second chamber 42, water and gargle tablet intensive mixing carried to water delivery device 30's the end of intaking. Compared with the prior art, the shell 10 is not required to be provided with an accommodating structure and be provided with holes, the structure is simple, the processing and assembling procedures are less, the production efficiency is improved, and the overall aesthetic property of the tooth flushing device is improved.

It will be appreciated that, as shown in fig. 1 to 4, in some embodiments of the present invention, a first hole 431 is disposed between the first chamber 41 and the second chamber 42 for communicating the two, a second hole 432 is disposed between the second chamber 42 and the water inlet end of the water delivery device 30 for communicating the two, the first hole 431 is disposed at the lower portion of the second chamber 42, and the second hole 432 is disposed at the upper portion of the second chamber 42 corresponding to the first hole 431. The flow direction of water is for flowing to the end of intaking that carries to water delivery device 30 to the top by the bottom of second chamber 42 for water fully passes through whole second chamber 42, avoids appearing the dead angle, unable make full use of gargle tablet.

As shown in fig. 1 to 4, in some embodiments of the present invention, a filter screen 60 covering the first hole 431 and the second hole 432 is disposed in the second chamber 42, and the aperture of the first hole 431 and the aperture of the second hole 432 are both larger than the aperture of the filter screen 60, so as to prevent the gargling tablet from blocking the first hole 431 and the second hole 432, which results in the liquid flowing out normally, and improve the user experience.

The utility model discloses an in some embodiments, closing cap 50 rotationally sets up to be connected in storage water tank 40, is provided with on the closing cap 50 to stretch into the shutoff portion 51 to the second chamber 42 in, is provided with the sealing member between shutoff portion 51 and the second chamber 42, improves sealed effect, and the user operation of being convenient for.

It should be understood that the blocking portion 51 is provided with an annular concave surface 511, and the sealing member is sleeved in the annular concave surface 511; the sealing element is provided with an elastic sealing ring.

It can be understood that in some embodiments of the present invention, the upper portion of the water storage tank 40 is connected to the accommodating chamber 11, the second chamber 42 of the water storage tank 40 is connected to the water inlet end of the water delivery device 30, the joint of the water storage tank 40 and the accommodating chamber 11 is provided with a sealing structure, the sealing structure acts on the inner wall of the accommodating chamber 11, and the sealing structure can seal the space where the water delivery device 30 is located. The sealing structure acts on the inner wall of the accommodating cavity 11, and the space where the water delivery device 30 is located is sealed through the sealing structure, so that water or dirt is prevented from permeating into the shell 10 through gaps to corrode the water delivery device 30. The manufacturing is convenient, the sealing structure can be tightly matched with the accommodating cavity 11, the sealing performance is better, and the service life of the tooth flushing device is prolonged.

It can be understood, as shown in fig. 1 to 4, in some embodiments of the present invention, the opening of the accommodating chamber 11 is in an annular configuration, the upper portion of the water storage tank 40 is vertically provided with an annular protrusion 441, the annular protrusion 441 can extend into the accommodating chamber 11, the sealing structure includes an annular boss 442 and an annular sealing ring not shown in the figure, the annular boss 442 is transversely disposed on the annular protrusion 441, and faces one side of the inner wall of the accommodating chamber 11, the side of the annular boss 442 is tightly attached to the inner wall of the accommodating chamber 11, and an annular groove 443 is disposed on the annular boss 442, the annular sealing ring is disposed in the annular groove 443, and acts on the inner wall of the accommodating chamber 11, which is simple in structure and improves the connection stability and the sealing performance.

It can be understood that, in some embodiments of the present invention, the annular protrusion 441 and the water storage tank 40 are integrated, so that the structure is simple and the installation is convenient.

Of course, in some embodiments, the sealing structure may be other structures, and is not limited herein.

As shown in fig. 1 to 4, in some embodiments of the present invention, the housing 10 includes an upper cylinder 12 and a lower baffle 13 vertically disposed at a lower portion of the upper cylinder 12, the accommodating chamber 11 is disposed on the upper cylinder 12, the water storage tank 40 is closely attached to the lower baffle 13, a first positioning protrusion 14 is vertically disposed on a sidewall of the lower baffle 13, and the water storage tank 40 is vertically disposed with a first positioning groove 45 engaged with the first positioning protrusion 14. The relative positions of the installation of the shell 10 and the water storage tank 40 can be fixed, the water storage tank 40 is prevented from moving, and the connection stability is improved.

It can be understood that, in some embodiments of the utility model, water delivery device 30 includes water delivery mechanism 31, circuit board 32 and battery 33, water delivery mechanism 31 has the water delivery chamber, the end of intaking in the water delivery chamber communicates in second cavity 42, the play water end in water delivery chamber communicates in spray tube 20, water delivery mechanism 31, battery 33 is connected with circuit board 32 electricity respectively, and circuit board 32, water delivery mechanism 31 and battery 33 set up side by side in holding chamber 11 in proper order, the inside space in holding chamber 11 of rational utilization casing 10, reduce the unnecessary volume, compact structure is reasonable, the longitudinal dimension of tooth washing ware has been reduced, and the cost is reduced.

In some embodiments of the present invention, the water delivery mechanism 31 includes a water delivery part 311 and a gear plate 312, a driving motor 313, a connecting rod 314 and a piston 315, the water delivery cavity is disposed in the water delivery part 311, the gear plate 312 is disposed along the vertical direction, the driving motor 313 is disposed below the gear plate 312 and is connected to the gear plate 312 in a transmission manner, the gear plate 312 is provided with an eccentric wheel 316, the connecting rod 314 is sleeved on the eccentric wheel 316, and the piston 315 is disposed at the upper end of the connecting rod 314 and is disposed in the water delivery assembly. The water storage tank 40 is convenient to pump and convey, the water outlet pressure of the spray pipe 20 is high, tooth dirt can be effectively cleaned, the cleaning effect is good, and the transmission is reliable.

It should be noted that in some embodiments of the present invention, the upper end surface of the water storage tank 40 is downwardly recessed to form a recessed area 46 for accommodating the lower portion of the driving motor 313. The space is fully utilized, so that the tooth flushing device is more reasonable to assemble.

As shown in fig. 1, 2, 4 and 5, in some embodiments of the present invention, the nozzle 20 is detachably disposed in the housing 10, and a locking device for locking the nozzle 20 is disposed in the housing 10, so that the nozzle 20 can be quickly replaced and cleaned, and the locking is reliable.

In some embodiments of the present invention, the locking device includes a locking member 71, a driving member 72 and an elastic structure 73 for driving the locking member 71 to reset, the locking member 71 is slidably disposed in the housing 10, the driving member 72 is in transmission connection with the locking member 71, the elastic structure 73 is located between the locking member 71 and the housing 10, a locking hole 74 for locking the nozzle tube 20 is formed between the elastic structure 73 and the locking member 71, the driving member 72 can drive the locking member 71 to move to release the locking of the nozzle tube 20, so as to achieve the quick replacement and cleaning of the nozzle tube 20, and the locking is reliable.

In some embodiments of the present invention, the locking member 71 is provided with a second positioning protrusion 711 located in the locking hole 74, the nozzle 20 is provided with a second positioning groove 21 engaged with the second positioning protrusion 711, and the second positioning protrusion 711 can move to separate from the second positioning groove 21 following the locking member 71. When the nozzle 20 is installed on the tooth flusher, the second positioning protrusion 711 can be clamped into the second positioning groove 21 of the nozzle 20, and the elastic structure 73 is arranged to limit the second positioning protrusion 711 to be separated from the second positioning groove 21, so that the nozzle 20 is fixed on the tooth flusher, and the normal tooth flushing function is realized; when the nozzle 20 needs to be cleaned, the driving part 72 drives the locking part 71 to move, the elastic structure 73 is elastically deformed, the second positioning protrusion 711 can move to be separated from the second positioning groove 21 along with the locking part 71, and the nozzle 20 can be detached from the tooth flusher; after the nozzle 20 is detached, the locking piece 71 is driven to reset through the elastic structure 73, and the use is convenient.

The utility model discloses a some embodiments, elastic structure 73 and locking piece 71 configure into the integral type structure, simple structure, and it is convenient to install, and save time has reduced manufacturing cost.

It is understood that, as shown in fig. 2, 4 and 5, in some embodiments of the present invention, the locking member 71 has a mounting opening 712 thereon, the elastic structure 73 includes an abutting portion 731 and an elastic portion 732, the abutting portion 731 is spaced apart from one side of the mounting opening 712 to form the locking hole 74, one end of the elastic portion 732 is connected to the abutting portion 731, and the other end of the elastic portion 732 is connected to the other side of the mounting opening 712. The spout 20 is locked more securely by the abutment portion 731 cooperating with the second positioning protrusion 711. The second positioning protrusion 711 moves to be separated from the second positioning groove 21 along with the locking member 71, the elastic part 732 compresses, so that the nozzle 20 is detached from the tooth flusher, the locking member 71 and the second positioning protrusion 711 are reset under the elastic action of the elastic part 732, the nozzle 20 can be easily detached from or installed on the tooth flusher, the use of the tooth flusher is convenient, and the cleaning of the nozzle 20 is convenient.

It can be understood that, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the upper portion of the housing 10 has a concave position, the top of the housing 10 is provided with a top cover 16 covering the concave position, the concave position is provided with an insertion hole corresponding to the lock hole 74, the insertion hole is aligned with the water outlet end of the water delivery member 311, the aperture of the insertion hole is adapted to the pipe diameter of the spray pipe 20, the top cover 16 is provided with an avoidance hole avoiding the spray pipe 20, the concave position is provided with a positioning column 15 extending into the lock hole 74, the abutting portion 731 abuts against the positioning column 15, the spray pipe 20 sequentially passes through the avoidance hole, the lock hole 74 and the insertion hole, and is clamped to the second positioning groove 21 of the spray pipe 20 by the second positioning protrusion 711 of the locking member 71, so as to lock the position of the spray pipe 20; and the housing 10 is provided with at least one drain hole 17 for draining water to the outside at the concave position, so as to avoid accumulation and detention of the liquid.

As shown in fig. 2, 4 and 5, in some embodiments of the present invention, the elastic portion 732 has a saw-tooth wave shape, which is simple in structure and easy to process. Of course, in some embodiments, the elastic portion 732 may also be z-shaped or an elastic block, etc., which is not limited herein.

In some embodiments of the present invention, the locking member 71 is configured as a plastic member, which is not only light in overall weight, but also easy to process and low in cost. Of course, in some embodiments, the locking member 71 may be made of other materials, such as: metal, etc., without limitation.

The utility model discloses a some embodiments, driving piece 72 can go up and down relatively locking piece 71, is provided with transmission portion on the locking piece 71, and driving piece 72 is provided with the drive division of being connected with the transmission of transmission portion, and structural design is novel reasonable, simple structure is compact, and the transmission is reliable.

In some embodiments of the present invention, the transmission portion is a first inclined surface 713 disposed on the locking member 71, and the driving portion is a second inclined surface 721 disposed on the driving member 72 and engaged with the first inclined surface 713. Through the cooperation of first inclined plane 713 and second inclined plane 721 to driving piece 72 can promote locking piece 71 and remove, and structural design is novel reasonable, and simple structure is compact, and the transmission is reliable.

Of course, in some embodiments, the driving portion may also be an elastic pressing block, and the transmission portion is an end surface of the locking member 71 facing the driving portion, and the driving portion presses the transmission portion radially, so as to drive the locking member 71 to move, and the second positioning protrusion 711 disengages from the second positioning groove 21.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Towards tooth ware, its characterized in that includes:

the water-saving device comprises a shell (10), wherein a spray pipe (20) is arranged on the shell (10), an accommodating cavity (11) is arranged in the shell (10), a water delivery device (30) is arranged in the accommodating cavity (11), and the water outlet end of the water delivery device (30) is communicated with the spray pipe (20);

the water storage tank (40) is connected to the accommodating cavity (11), a first cavity (41) used for storing water and a second cavity (42) communicated with the first cavity (41) are arranged on the water storage tank (40), the first cavity (41) is communicated with the second cavity (42) through the water inlet end of the water delivery device (30), a water supply hole (421) communicated with the outside is formed in the second cavity (42), the gargling tablets can pass through the water supply hole (421) and be placed in the second cavity (42), and a sealing cover (50) covering the water supply hole (421) is arranged on the water storage tank (40).

2. The dental irrigator according to claim 1, wherein a first duct (431) communicating with the first chamber (41) and the second chamber (42) is provided between the second chamber (42) and the water inlet end of the water delivery device (30), a second duct (432) communicating with the second chamber (42) is provided between the second chamber (42) and the water inlet end, the first duct (431) is located at the lower part of the second chamber (42), and the second duct (432) is located at the upper part of the second chamber (42) corresponding to the first duct (431).

3. The dental irrigator of claim 2, wherein a filter screen (60) is disposed within said second chamber (42) covering said first and second apertures (431, 432).

4. The dental irrigator according to claim 1, wherein said cover (50) is rotatably arranged to be connected to said water storage tank (40), said cover (50) being provided with a blocking portion (51) extending into said second compartment (42), a seal being provided between said blocking portion (51) and said second compartment (42).

5. The device according to claim 1, characterized in that said water delivery means (30) comprises a water delivery mechanism (31), a circuit board (32) and a battery (33), said water delivery mechanism (31) has a water delivery cavity, the water inlet end of said water delivery cavity communicates with said second chamber (42), the water outlet end of said water delivery cavity communicates with said nozzle tube (20), said water delivery mechanism (31) and said battery (33) are electrically connected with said circuit board (32), and said circuit board (32), said water delivery mechanism (31) and said battery (33) are arranged in said housing cavity (11) in sequence side by side.

6. The water flushing device according to claim 5, characterized in that the water delivery mechanism (31) comprises a water delivery member (311) and a gear disc (312), a driving motor (313), a connecting rod (314) and a piston (315), the water delivery cavity is arranged in the water delivery member (311), the gear disc (312) is rotatably arranged in the vertical direction, the driving motor (313) is arranged below the gear disc (312) and is in transmission connection with the gear disc (312), an eccentric wheel (316) is arranged on the gear disc (312), the connecting rod (314) is sleeved on the eccentric wheel (316), and the piston (315) is arranged at the upper end of the connecting rod (314) and is arranged in the water delivery member (311).

7. The dental irrigator of claim 1, wherein said nozzle (20) is removably arranged to said housing (10), said housing (10) being provided with locking means for locking said nozzle (20).

8. The tooth flusher according to claim 7, characterized in that the locking device comprises a locking member (71), a driving member (72) and a resilient structure (73) for driving the locking member (71) to return, the locking member (71) is slidably arranged in the housing (10), the driving member (72) and the locking member (71) are in transmission connection, the resilient structure (73) is located between the locking member (71) and the housing (10), a locking hole (74) for locking the nozzle tube (20) is formed between the resilient structure (73) and the locking member (71), and the driving member (72) can drive the locking member (71) to move to unlock the nozzle tube (20).

9. The tooth punching device according to claim 8, characterized in that a second positioning protrusion (711) is arranged on the locking member (71) and located in the locking hole (74), a second positioning groove (21) in snap fit with the second positioning protrusion (711) is arranged on the nozzle tube (20), and the second positioning protrusion (711) can move to be separated from the second positioning groove (21) along with the locking member (71).

10. The dental irrigator of claim 9, wherein said resilient structure (73) and said locking member (71) are configured as a unitary structure.