CN215535215U

CN215535215U - Can accomodate towards tooth ware that washes tooth shower nozzle

Info

Publication number: CN215535215U
Application number: CN202121607786.5U
Authority: CN
Inventors: 邹镇孟
Original assignee: Shenzhen Zou Design Industrial Design Co ltd
Current assignee: Shenzhen Zou Design Industrial Design Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-18
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a tooth irrigator capable of accommodating a tooth irrigator nozzle, which comprises a tooth irrigator shell, wherein a rectangular liquid storage cavity and a rectangular movable cavity positioned above the rectangular liquid storage cavity are arranged on the tooth irrigator shell, transparent glass for observing the liquid level height of liquid in the rectangular liquid storage cavity is embedded in the right side of the tooth irrigator shell, and a liquid conveying pipe communicated with the interior of the rectangular liquid storage cavity is horizontally and fixedly embedded in the left side of the tooth irrigator shell. The transparent glass is convenient for checking the liquid level height of the liquid in the rectangular liquid storage cavity in real time, so that the liquid can be conveniently added in time when the liquid in the rectangular liquid storage cavity is less, in addition, the used tooth punching spray head is accommodated in the rectangular movable cavity, and meanwhile, the rectangular channel is covered by the cover plate, so that the tooth punching spray head is effectively prevented from being damaged.

Description

Can accomodate towards tooth ware that washes tooth shower nozzle

Technical Field

The utility model relates to the technical field of tooth flushing devices, in particular to a tooth flushing device capable of accommodating a tooth flushing spray head.

Background

Tooth ware is one kind and utilizes the instrument that pulse water impact's mode comes clean tooth and tooth seam through its self washing nozzle, and current tooth ware of washing exists the liquid level height of its inside observation of being not convenient for, leads to unable in time liquid feeding when its inside liquid is less, and the tooth shower nozzle that washes tooth ware all is fixed in the outside of washing tooth ware in addition for it damages because of the collision takes place easily, thereby it has provided one kind and has accomodate the tooth ware of washing that washes tooth shower nozzle based on above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a tooth flushing device capable of accommodating a tooth flushing spray head.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a tooth flushing device capable of accommodating a tooth flushing sprayer comprises a tooth flushing device shell, wherein a rectangular liquid storage cavity and a rectangular movable cavity located above the rectangular liquid storage cavity are arranged on the tooth flushing device shell, a transparent glass used for observing the liquid level inside the rectangular liquid storage cavity is embedded in the right side of the tooth flushing device shell, a liquid conveying pipe communicated with the inside of the rectangular liquid storage cavity is horizontally and fixedly embedded in the left side of the tooth flushing device shell, the bottom inner wall of the rectangular movable cavity and the top inner wall of the rectangular liquid storage cavity are provided with the same liquid pumping through hole, a liquid pumping pipe is fixedly bonded on the inner side wall of the liquid pumping through hole, a telescopic hose is fixedly bonded at the top end of the liquid pumping pipe, a water inlet of a water suction pump is fixedly communicated at the top of the telescopic hose, and a telescopic motor located on the left side of the telescopic hose is fixedly welded on the bottom inner wall of the rectangular movable cavity, the top end of an output shaft of the telescopic motor is fixedly welded with a rectangular guide table, a tooth flushing sprayer is embedded in the rectangular guide table, a liquid inlet of the tooth flushing sprayer is fixed and communicated with a water outlet of the water suction pump, a rectangular sliding groove is formed in the inner wall of the left side of the rectangular movable cavity, a rectangular sliding block which is slidably mounted in the rectangular sliding groove is fixedly welded on the left side of the rectangular guide table, a rectangular channel matched with the tooth flushing sprayer is formed in the inner wall of the top of the rectangular movable cavity, a cover plate used for shielding the rectangular channel is contacted with the top of the tooth flushing device shell, a rectangular groove is formed in the left side of the top of the tooth flushing device shell, the inner wall of the bottom of the rectangular groove and the inner wall of the top of the rectangular sliding groove are provided with the same rectangular connecting through hole, and a rectangular movable rod is fixedly welded on the top of the rectangular sliding block, the left side of rectangle movable rod bonds and is fixed with a rack, whole rectangular connection through-hole is all run through at the top of rack and the top of rectangle movable rod to in extending to the rectangle recess, rotate on the front side inner wall of rectangle recess and the rear side inner wall and install same axis of rotation, the left side welded fastening of apron has two rectangle mounting brackets, and two equal fixed suits of rectangle mounting bracket are in the outside of axis of rotation, and the front side that lies in a rectangle mounting bracket of front side in two rectangle mounting brackets is equipped with the circular gear of a fixed suit in the axis of rotation outside, and the right side and the rack mesh of circular gear.

Preferably, a transparent glass mounting through hole is formed in the inner wall of the right side of the rectangular liquid storage cavity, and the inner wall of the transparent glass mounting through hole is fixedly bonded with the outer side of the transparent glass through glue.

Preferably, a circular infusion through hole is formed in the inner wall of the left side of the rectangular liquid storage cavity, the inner wall of the circular infusion through hole is fixedly bonded with the outer side of the infusion tube, a manual valve is arranged on the infusion tube, and the manual valve is located on the left side of the tooth flushing device shell.

Preferably, the bottom of the liquid extracting pipe is provided with an inclined section, the height of the left side of the inclined section at the bottom of the liquid extracting pipe is lower than that of the right side of the inclined section, and the left side of the bottom of the liquid extracting pipe is in contact with the inner wall of the bottom of the rectangular liquid storage chamber.

Preferably, a nozzle mounting through hole is formed in the rectangular guide table, and the inner wall of the nozzle mounting through hole is fixedly bonded with the bottom of the outer side of the tooth punching nozzle.

Preferably, flexible motor electric connection has a battery of installing on towards tooth ware casing, and battery electric connection has a fixed battery charge interface of inlaying in towards tooth ware casing outside of inlaying, and battery still electric connection has a motor control switch who is used for controlling flexible motor to carry out forward start and direction, and motor control switch is fixed to inlay the outside of inlaying towards tooth ware casing, suction pump and battery electric connection, and suction pump still electric connection have one inlay the suction pump control switch who inlays in towards tooth ware casing outside.

Preferably, four sides of the rectangular guide table are in sliding contact with one inner wall corresponding to the rectangular movable chamber, and the front side, the rear side and the left side of the rectangular sliding block arranged on the left side of the rectangular guide table are in sliding contact with one inner wall corresponding to the rectangular sliding chute.

Preferably, the front side and the rear side of the rectangular mounting frame are provided with the same first circular fixing through hole, the inner side wall of the first circular fixing through hole is fixedly bonded with the outer side of the rotating shaft, the front side central position of the circular gear is provided with a second circular fixing through hole, and the inner side wall of the second circular fixing through hole is fixedly bonded with the outer side of the rotating shaft.

Preferably, a bearing is fixedly bonded on the front inner wall and the rear inner wall of the rectangular groove, and the inner sides of the inner rings of the two bearings are fixedly bonded on the outer side of the rotating shaft.

Preferably, the rectangular movable rod is located at the front side of the cover plate.

The transparent glass is convenient for checking the liquid level height of the liquid in the rectangular liquid storage cavity in real time, so that the liquid can be conveniently added in time when the liquid in the rectangular liquid storage cavity is less, in addition, the used tooth punching spray head is accommodated in the rectangular movable cavity, and meanwhile, the rectangular channel is covered by the cover plate, so that the tooth punching spray head is effectively prevented from being damaged.

Drawings

FIG. 1 is a schematic front view of a dental irrigator capable of receiving a dental irrigator head according to the present invention;

FIG. 2 is a schematic top view of a dental irrigator capable of receiving a dental irrigator head according to the present invention;

FIG. 3 is a schematic sectional view of a tooth irrigator capable of accommodating a tooth irrigator according to the present invention;

fig. 4 is an enlarged schematic view of a-a in fig. 3.

In the figure: 1 tooth flushing device shell, 2 transfusion tubes, 3 liquid pumping tubes, 4 rotating shafts, 5 telescopic hoses, 6 water suction pumps, 7 tooth flushing nozzles, 8 rectangular guide tables, 9 telescopic motors, 10 rectangular sliding grooves, 11 rectangular sliding blocks, 12 rectangular movable rods, 13 racks, 14 rectangular channels, 15 cover plates, 16 rectangular grooves, 17 circular gears, 18 rectangular mounting supports, 19 transparent glass, 20 rectangular liquid storage chambers and 21 rectangular movable chambers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a tooth irrigator capable of accommodating a tooth irrigator nozzle comprises a tooth irrigator shell 1, wherein the tooth irrigator shell 1 is provided with a rectangular liquid storage chamber 20 and a rectangular movable chamber 21 positioned above the rectangular liquid storage chamber 20, the right side of the tooth irrigator shell 1 is embedded with a transparent glass 19 for observing the liquid level height inside the rectangular liquid storage chamber 20, the inner wall of the right side of the rectangular liquid storage chamber 20 is provided with a transparent glass installation through hole, the inner wall of the transparent glass installation through hole is fixedly bonded with the outer side of the transparent glass 19 through glue, the left side of the tooth irrigator shell 1 is horizontally and fixedly embedded with a transfusion tube 2 communicated with the inside of the rectangular liquid storage chamber 20, the inner wall of the left side of the rectangular liquid storage chamber 20 is provided with a circular transfusion through hole, the inner wall of the circular transfusion through hole is fixedly bonded with the outer side of the transfusion tube 2, the infusion tube 2 is provided with a manual valve, the manual valve is positioned on the left side of the tooth flushing device shell 1, the bottom inner wall of the rectangular movable cavity 21 and the top inner wall of the rectangular liquid storage cavity 20 are provided with the same liquid pumping through hole, a liquid pumping tube 3 is fixedly bonded on the inner side wall of the liquid pumping through hole, the bottom of the liquid pumping tube 3 is provided with an inclined section, the left side of the inclined section positioned at the bottom of the liquid pumping tube 3 is lower than the right side of the inclined section, the left side of the bottom of the liquid pumping tube 3 is contacted with the bottom inner wall of the rectangular liquid storage cavity 20, a flexible hose 5 is fixedly bonded on the top of the liquid pumping tube 3, the top of the flexible hose 5 is fixedly communicated with a water inlet of a water suction pump 6, the water suction pump 6 is electrically connected with a water suction pump control switch embedded on the outer side of the tooth flushing device shell 1, the water pump control switch is used for controlling the start and pause of the water suction pump 6, a flexible motor 9 positioned on the left side of the flexible hose 5 is fixedly welded on the bottom inner wall of the rectangular movable cavity 21, the retractable motor 9 is electrically connected with a storage battery arranged on the tooth flusher shell 1, the storage battery is electrically connected with a storage battery charging interface fixedly embedded on the outer side of the tooth flusher shell 1, the storage battery is also electrically connected with a motor control switch for controlling the retractable motor 9 to carry out forward starting and directional rising, the motor control switch is fixedly embedded on the outer side of the tooth flusher shell 1, the storage battery is electrically connected with a water suction pump 6, the top end of an output shaft of the retractable motor 9 is fixedly welded with a rectangular guide table 8, wherein four sides of the rectangular guide table 8 are respectively in sliding contact with the inner wall of one side corresponding to the rectangular movable cavity 21, a tooth flushing sprayer 7 is embedded on the rectangular guide table 8, a sprayer mounting through hole is arranged on the rectangular guide table 8, the inner wall of the sprayer mounting through hole is fixedly bonded with the bottom of the outer side of the tooth flushing sprayer 7, and a liquid inlet of the tooth flushing sprayer 7 is fixedly communicated with a water outlet of the water suction pump 6, a rectangular sliding groove 10 is arranged on the inner wall of the left side of a rectangular movable cavity 21, a rectangular sliding block 11 which is slidably arranged in the rectangular sliding groove 10 is fixedly welded on the left side of a rectangular guide table 8, the front side, the rear side and the left side of the rectangular sliding block 11 which is arranged on the left side of the rectangular guide table 8 are respectively in sliding contact with the inner wall of one side corresponding to the rectangular sliding groove 10, a rectangular channel 14 which is matched with a tooth punching spray head 7 is arranged on the inner wall of the top of the rectangular movable cavity 21, a cover plate 15 which is used for shielding the rectangular channel 14 is contacted with the top of a tooth punching device shell 1, a rectangular groove 16 is arranged on the left side of the top of the tooth punching device shell 1, the inner wall of the bottom of the rectangular groove 16 and the inner wall of the top of the rectangular sliding groove 10 are provided with the same rectangular connecting through hole, a rectangular movable rod 12 is fixedly welded on the top of the rectangular sliding block 11, and the rectangular movable rod 12 is positioned on the front side of the cover plate 15, a rack 13 is fixedly bonded on the left side of the rectangular movable rod 12, the top of the rack 13 and the top of the rectangular movable rod 12 both penetrate through the whole rectangular connecting through hole and extend into the rectangular groove 16, the front inner wall and the rear inner wall of the rectangular groove 16 are rotatably provided with the same rotating shaft 4, wherein the front inner wall and the rear inner wall of the rectangular groove 16 are fixedly bonded with a bearing, the inner sides of the inner rings of the two bearings are fixedly bonded on the outer side of the rotating shaft 4, the left side of the cover plate 15 is fixedly welded with two rectangular mounting frames 18, the two rectangular mounting frames 18 are fixedly sleeved on the outer side of the rotating shaft 4, the front side and the rear side of each rectangular mounting frame 18 are provided with the same first circular fixing through hole, the inner side wall of the first circular fixing through hole is fixedly bonded with the outer side of the rotating shaft 4, the front side of one rectangular mounting frame 18 positioned on the front side of the two rectangular mounting frames 18 is provided with a circular gear 17 fixedly sleeved on the outer side of the rotating shaft 4, in addition, the right side of the circular gear 17 is meshed with the rack 13, a second circular fixing through hole is formed in the center of the front side of the circular gear 17, the inner side wall of the second circular fixing through hole is fixedly bonded with the outer side of the rotating shaft 4, the liquid level height of liquid in the rectangular liquid storage cavity 20 can be checked in real time conveniently through the transparent glass 19, liquid can be added in time conveniently when the amount of liquid in the rectangular liquid storage cavity 20 is small, the tooth punching spray head 7 after use is stored in the rectangular movable cavity 21, and meanwhile the rectangular channel 14 is covered by the cover plate 15, so that the tooth punching spray head 7 is effectively prevented from being damaged.

The working principle is as follows: when a user needs to use the electric toothbrush, firstly, the telescopic motor 9 is positively started through the motor control switch, the top end of the output shaft of the telescopic motor 9 drives the rectangular guide table 8 to upwards slide along the inner walls of the four sides of the rectangular movable cavity 21, the rectangular guide table 8 drives the rectangular sliding block 11 to upwards slide in the rectangular sliding groove 10, the rectangular guide table 8 also drives the tooth punching spray head 7 to upwards move, the rectangular sliding block 11 drives the rectangular movable rod 12 to upwards move, the rectangular movable rod 12 drives the rack 13 to upwards move, the rack 13 is meshed to drive the circular gear 17 to anticlockwise rotate, the circular gear 17 drives the rotating shaft 4 to anticlockwise rotate in the rectangular groove 16, the rotating shaft 4 drives the two rectangular mounting frames 18 to anticlockwise rotate, and the two rectangular mounting frames 18 jointly drive the cover plate 15 to anticlockwise rotate, when the cover plate 15 is in a completely opened state, the upper part of the outer side of the tooth flushing nozzle 7 moves to the upper part of the tooth flushing device shell 1, at the moment, a user controls the telescopic motor 9 to pause through the motor control switch, the water suction pump 6 is started through the water suction pump control switch, the water suction pump 6 sucks liquid in the rectangular liquid storage cavity 20 through the telescopic hose 5 and the liquid suction pipe 3, the liquid suction pump 6 pumps the sucked liquid through the tooth flushing nozzle 7 to flush teeth, after the flushing operation is completed, the user controls the water suction pump 6 to pause through the water suction pump control switch, at the moment, the telescopic motor 9 is reversely started through the motor control switch, the top end of the output shaft of the telescopic motor 9 drives the rectangular guide table 8 to downwards slide along the inner walls of the four sides of the rectangular movable cavity 21, and the rectangular guide table 8 drives the rectangular sliding block 11 to downwards slide in the rectangular sliding chute 10, the rectangular guide table 8 further drives the tooth punching spray head 7 to move downwards, the rectangular sliding block 11 drives the rectangular movable rod 12 to move downwards, the rectangular movable rod 12 drives the rack 13 to move downwards, the rack 13 is meshed with the circular gear 17 to rotate clockwise, the circular gear 17 drives the rotating shaft 4 to rotate clockwise in the rectangular groove 16, the rotating shaft 4 drives the two rectangular mounting frames 18 to rotate clockwise, the two rectangular mounting frames 18 jointly drive the cover plate 15 to rotate clockwise, when the cover plate 15 is contacted with the top of the tooth punching device shell 1, the telescopic motor 9 is controlled by the motor control switch to pause, the tooth punching spray head 7 is accommodated in the rectangular movable cavity 21, the tooth punching spray head 7 after being used is accommodated in the rectangular movable cavity 21, and the cover plate 15 covers the rectangular channel 14, thereby effectively preventing the tooth-punching spray head 17 from being damaged;

in addition, the right side of the tooth flushing device shell 1 is embedded with the transparent glass 19 for observing the liquid level inside the rectangular liquid storage cavity 20, so that a user can conveniently check the liquid level inside the rectangular liquid storage cavity 20 in real time through the transparent glass 2, and then timely liquid adding can be conveniently carried out when the liquid inside the rectangular liquid storage cavity 20 is less.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A tooth irrigator capable of accommodating a tooth irrigator nozzle comprises a tooth irrigator shell (1) and is characterized in that a rectangular liquid storage cavity (20) and a rectangular movable cavity (21) located above the rectangular liquid storage cavity (20) are arranged on the tooth irrigator shell (1), transparent glass (19) used for observing the liquid level inside the rectangular liquid storage cavity (20) is embedded on the right side of the tooth irrigator shell (1), an infusion tube (2) communicated with the inside of the rectangular liquid storage cavity (20) is horizontally and fixedly embedded on the left side of the tooth irrigator shell (1), the bottom inner wall of the rectangular movable cavity (21) and the top inner wall of the rectangular liquid storage cavity (20) are provided with a same liquid extracting through hole, a liquid extracting tube (3) is fixedly bonded on the inner side wall of the liquid extracting through hole, and a telescopic hose (5) is fixedly bonded on the top end of the liquid extracting tube (3), the water inlet of a water suction pump (6) is fixed and communicated at the top of the telescopic hose (5), a telescopic motor (9) positioned on the left side of the telescopic hose (5) is welded and fixed on the inner wall of the bottom of the rectangular movable cavity (21), a rectangular guide table (8) is welded and fixed at the top end of an output shaft of the telescopic motor (9), a tooth flushing sprayer (7) is embedded on the rectangular guide table (8), a liquid inlet of the tooth flushing sprayer (7) is fixed and communicated with a water outlet of the water suction pump (6), a rectangular sliding groove (10) is formed in the inner wall of the left side of the rectangular movable cavity (21), a rectangular sliding block (11) which is slidably installed in the rectangular sliding groove (10) is welded and fixed at the left side of the rectangular guide table (8), a rectangular channel (14) matched with the tooth flushing sprayer (7) is formed in the inner wall of the top of the rectangular movable cavity (21), the tooth punching device is characterized in that a cover plate (15) used for shielding a rectangular channel (14) is contacted with the top of the tooth punching device shell (1), a rectangular groove (16) is formed in the left side of the top of the tooth punching device shell (1), the bottom inner wall of the rectangular groove (16) and the top inner wall of a rectangular sliding groove (10) are provided with the same rectangular connecting through hole, a rectangular movable rod (12) is fixedly welded on the top of a rectangular sliding block (11), a rack (13) is fixedly bonded on the left side of the rectangular movable rod (12), the top of the rack (13) and the top of the rectangular movable rod (12) penetrate through the whole rectangular connecting through hole and extend into the rectangular groove (16), the front inner wall and the rear inner wall of the rectangular groove (16) are rotatably provided with the same rotating shaft (4), and two rectangular mounting frames (18) are fixedly welded on the left side of the cover plate (15), two rectangle mounting brackets (18) are all fixed suit in the outside of axis of rotation (4), and the front side of a rectangle mounting bracket (18) that is located the front side in two rectangle mounting brackets (18) is equipped with a circular gear (17) of fixed suit in the axis of rotation (4) outside, and the right side and the rack (13) of circular gear (17) mesh mutually.

2. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle according to claim 1, wherein a transparent glass mounting through hole is formed on the right inner wall of the rectangular liquid storage chamber (20), and the inner wall of the transparent glass mounting through hole is fixed to the outer side of the transparent glass (19) by gluing.

3. The tooth flusher capable of accommodating the tooth flushing nozzle according to claim 1, wherein a circular liquid conveying through hole is formed in the left inner wall of the rectangular liquid storage chamber (20), the inner wall of the circular liquid conveying through hole is fixedly bonded with the outer side of the liquid conveying pipe (2), and a manual valve is arranged on the liquid conveying pipe (2) and located on the left side of the tooth flusher shell (1).

4. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle as claimed in claim 1, wherein the bottom of the liquid-extracting tube (3) is formed with an inclined cross-section, the left side of the inclined cross-section at the bottom of the liquid-extracting tube (3) is lower than the right side thereof, and the left side of the bottom of the liquid-extracting tube (3) is in contact with the inner wall of the bottom of the rectangular liquid-storing chamber (20).

5. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle as claimed in claim 1, wherein the rectangular guide table (8) is provided with a nozzle mounting through hole, and the inner wall of the nozzle mounting through hole is fixedly bonded to the outer bottom of the tooth-rinsing nozzle (7).

6. The tooth flusher capable of accommodating the tooth flushing sprayer according to claim 1, wherein the telescopic motor (9) is electrically connected with a storage battery which is installed on the tooth flusher shell (1), the storage battery is electrically connected with a storage battery charging interface which is fixedly embedded on the outer side of the tooth flusher shell (1), the storage battery is also electrically connected with a motor control switch which is used for controlling the telescopic motor (9) to perform forward starting and directional starting, the motor control switch is fixedly embedded on the outer side of the tooth flusher shell (1), the water suction pump (6) is electrically connected with the storage battery, and the water suction pump (6) is also electrically connected with a water suction pump control switch which is embedded on the outer side of the tooth flusher shell (1).

7. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle according to claim 1, wherein four sides of the rectangular guide platform (8) are in sliding contact with a corresponding inner wall of the rectangular movable chamber (21), and the front side, the rear side and the left side of the rectangular slider (11) installed at the left side of the rectangular guide platform (8) are in sliding contact with a corresponding inner wall of the rectangular sliding chute (10).

8. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle as claimed in claim 1, wherein the rectangular mounting frame (18) has a first circular fixing through hole formed at the front side and the rear side thereof, the inner side wall of the first circular fixing through hole is fixedly bonded to the outer side of the rotating shaft (4), the circular gear (17) has a second circular fixing through hole formed at the center of the front side thereof, and the inner side wall of the second circular fixing through hole is fixedly bonded to the outer side of the rotating shaft (4).

9. The tooth-rinsing device capable of accommodating a tooth-rinsing nozzle according to claim 1, wherein a bearing is adhesively fixed on each of the front inner wall and the rear inner wall of the rectangular recess (16), and the inner sides of the inner rings of the two bearings are adhesively fixed on the outer side of the rotating shaft (4).

10. A dental irrigator capable of receiving a dental irrigator head according to claim 1, wherein said rectangular activating bar (12) is located on the front side of the cover plate (15).