CN216090875U

CN216090875U - Tooth flusher with foldable water tank

Info

Publication number: CN216090875U
Application number: CN202121910315.1U
Authority: CN
Inventors: 周星; 徐华苹; 苏文宇; 冯晓薇; 王玉娥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-03-22
Anticipated expiration: 2031-08-13

Abstract

The tooth flusher with the foldable water tank comprises a spray head, a spray gun, a control switch, a container and a water pipe. The spray head is arranged at the front end of the spray gun; the control switch can control the injection of fluid in the spray gun; the fluid in the container is connected with the spray gun through a water pipe. The container is a collapsible container comprising a housing and a fluid containing space; the side wall of the housing is a collapsible side wall. The foldable side walls can be folded and unfolded under the action of external force. When the device is used, the foldable container is unfolded, and washing liquid is injected into the foldable container to wash the oral cavity; when the tooth flusher needs to be carried out, the foldable container is folded, the accommodating volume of the tooth flusher with the foldable water tank is reduced, and the tooth flusher is convenient to carry out. Because the volume of the foldable container is reduced by the way of folding the foldable container, the fluid containing space of the container cannot be polluted, and the foldable container is cleaner and more sanitary to carry out.

Description

Tooth flusher with foldable water tank

Technical Field

The utility model relates to an oral cleaning tool, in particular to a tooth flusher comprising a foldable water tank for cleaning teeth, interdentium and oral cavity.

Background

Due to the reasons of age increase, pathology and the like, gum atrophy, tooth gap enlargement and food residue are easily caused, and if the teeth cannot be cleaned in time, on one hand, peculiar smell in the oral cavity is generated, and on the other hand, various odontopathy and oral diseases, particularly periodontitis are easily caused.

Aiming at the situation, various dental floss products, such as interdental brush, water dental floss and the like are developed in the market at present for users to select. Particularly, the water dental floss product realizes the cleaning of teeth and oral cavity by utilizing the impact force of high-speed water columns ejected under certain pressure, and is a very widely applied oral cleaning product in the current market due to convenient use and good cleaning effect.

Along with the increasing attention of people to oral cavity cleaning, a portable oral irrigator product gradually becomes a habit, and the existing portable dental floss product generally reduces the storage volume by a mode of putting a main machine into a water tank, so that the aim of portability is fulfilled. However, in this way, since the main body is a part which is directly contacted with the outside by hand, the main body is very easily polluted, and therefore, if the main body is placed in the water tank, the water tank is very easily polluted.

In order to overcome the disadvantages of the prior art and to allow a user to cleanly and hygienically carry the water dental floss, an improvement in the existing dental irrigators is needed.

Disclosure of Invention

The tooth flusher with the foldable water tank is provided with the foldable water tank, the water tank is folded when people go out, the size can be reduced, the tooth flusher is convenient to carry, the main machine is not arranged in the water tank, the water tank cannot be polluted, and the use requirements of portability and sanitation are met.

The utility model relates to a tooth flusher with a foldable water tank, which is characterized in that: the tooth flusher 100 with the foldable water tank comprises a spray head 1, a spray gun 2, a control switch 3, a container 4 and a water pipe 5;

A. the spray head 1 is arranged at the front end of the spray gun 2; the control switch 3 can control the injection of the fluid in the spray gun 2; the fluid in the container 4 is connected with the spray gun 2 through the water pipe 5;

B. the container 4 is a collapsible container 4-1.

Because the container 4 is a foldable container 4-1, when in use, the container 4 is unfolded, washing liquid is injected into the container 4 for oral cavity washing, and when in use, the foldable container 4-1 is folded. Because the volume of the foldable container 4-1 is reduced by the way of folding, other components such as the spray gun 2 and the like do not need to be placed in the container 4, the fluid containing space 42 of the container 4 cannot be polluted, and the container is cleaner and more sanitary when being carried out.

The collapsible container 4-1 comprises a housing 41 and a fluid containing space 42; the side wall 41-1 of the housing 41 is a foldable side wall 41-11. The foldable side walls 41-11 can be folded and unfolded by an external force to realize the folding and unfolding of the fluid-receiving space 42.

The foldable side walls 41-11 are made of an elastic material. The elastic material can be silica gel, rubber, polyurethane, polyethylene, nylon, polypropylene and other materials or a combination of multiple materials.

The foldable side walls 41-11 are folded in a telescoping manner. When the tooth flusher is folded in a nesting mode, the foldable side walls 41-11 can be folded upwards and wrapped outside the upper part of the tooth flusher 100 with the foldable water tank, and the volume is small after the tooth flusher is contracted.

The foldable side walls 41-11 are folded in an accordion manner.

Further, the foldable side wall 41-11 is formed by alternating high strength regions 41-11-1 and low strength regions 41-11-2.

The accordion folding is realized by folding the low-strength areas 41-11-2 one by one outside the corresponding high-strength areas 41-11-1 to fold the foldable side walls 41-11.

The control switch 3 is a one-button control switch 3-1, and the one-button control switch 3-1 can control starting, water pressure regulation and stopping. The whole process of oral cavity flushing can be realized by only one key in a one-key control mode, and the use process is very simple and convenient.

The dental irrigator 100 comprising a collapsible water tank also comprises a water pressure regulating device 6. The water pressure adjusting device 6 can adjust the water pressure sprayed out by the spray gun 2.

The water pressure adjusting device 6 is a stepless water pressure adjusting device 601 or a staged water pressure adjusting device 602. The stepless water pressure adjusting device 601 can continuously adjust the water pressure sprayed out by the spray gun 2, and can meet all water pressure requirements. The grading water pressure adjusting device 602 can adjust the water pressure in grades according to the set standard, and the operation is simpler in the using process.

The water pressure adjusting device 6 is a stepless water pressure adjusting device 601; the stepless water pressure adjusting device 601 comprises an adjusting switch 61, a controller 62 and a signal output device 63; the adjustment of the adjustment switch 61 can continuously adjust the signal output by the controller 62, thereby continuously adjusting the pressure of the fluid sprayed from the spray gun 2. Since the regulating switch 61 of the stepless water pressure regulating device 601 can continuously regulate the signal output by the controller 62, the signal output by the output device 63 can be continuously changed, and the continuous regulation of the fluid pressure sprayed by the spray gun 2 can be realized by continuously regulating the output signal of the controller 62. When the user uses the tooth flusher, the most comfortable water pressure can be adjusted according to personal tolerance and hobby, and the cleaning effect and the comfort degree of the tooth flusher in the using process are greatly enhanced.

The signal regulated by the controller 62 is a voltage, or a current, or a power, or a frequency, or a waveform. Applicants have enumerated only the above signals, but those skilled in the art may adjust other signals as needed to achieve the adjustment of the magnitude of the fluid pressure without departing from the scope of the present application.

The adjustment switch 61 is a knob type adjustment switch.

The adjusting switch 61 comprises a knob 61-1 and a positioning hole 61-2; the controller 62 comprises a potentiometer 62-1 and a control chip 62-2, an output signal of the potentiometer 62-1 is an input signal of the control chip 62-2, and an output signal of the control chip 62-2 can be controlled; a connecting rod 62-1-1 is arranged on the potentiometer 62-1, and the connecting rod 62-1-1 can be embedded in the positioning hole 61-2; the knob 61-1 is rotated to drive the connecting rod 62-1-1 to rotate, so that the output signal of the potentiometer 62-1 is adjusted, and the output signal of the control chip 62-2 is adjusted. The knob type adjusting switch can continuously adjust the output signal of the potentiometer 62-1, such as a voltage signal, by rotating the knob 61-1, the output signal of the potentiometer 62-1, such as a voltage signal, is an input signal of the control chip 62-2, and the output signal of the control chip 62-2, such as the output voltage, or the output current, or the output power, or the output frequency, or the output pulse waveform, can be continuously adjusted by adjusting the input signal of the control chip 62-2. The signal output by the control chip 62-2 can control the amount of the water pressure sucked by the water sucking device 7 or the amount of the pressure increased by the pressure increasing device 41-1 on the liquid in the pressure container 41. By continuously adjusting the signal output by the control chip 62-2, continuous adjustment of the pressure of the fluid ejected from the ejection head 1 can be achieved. The knob type adjusting switch can realize the signal adjustment of the controller 62 only by rotating the knob 61-1 back and forth, and is simple and convenient to use.

The staged water pressure regulator 602 includes a gear button 64. Different gear buttons 64 correspond to different set water pressures, and by pressing the different gear buttons 64, the spray gun 2 can spray washing liquid with different pressures. The operation process is simpler and more convenient because the stepless water pressure adjusting device 601 does not need to find the proper water pressure.

The applicant only lists the two water pressure adjusting modes, but those skilled in the art can design different water pressure adjusting modes according to needs, and the applicant does not exemplify the water pressure adjusting modes and does not depart from the protection scope of the present application.

The tooth flusher 100 with the foldable water tank comprises a water suction device 7; the water absorbing device 7 can absorb the fluid in the container 4 into the spray gun 2 through the water pipe 5 and then spray the fluid out of the spray head 1.

The water absorption device 7 is a manual water absorption device or an electric water absorption device 71.

The water absorbing device 7 is an electric water absorbing device 71; the electric water absorption device 71 comprises a water inlet pipe 71-1, a motor 71-2 and a water outlet pipe 71-3; the motor 71-2 works, the liquid in the container 4 is sucked into the electric water sucking device 71 through the water pipe 5 and then is sprayed out from the water outlet pipe 71-3, and the sprayed fluid is sprayed out from the spray gun 2 through the water pipe 5.

The dental irrigator of the utility model comprising a collapsible reservoir also comprises circuitry 9 and a power supply 10. The power supply 10, the electric water absorption device 71, the stepless water pressure regulating device 601 and the control switch 3 are connected together through the circuit system 9.

After the output signal of the controller 62 of the stepless water pressure regulating device 601 is output by the signal output device 63, the rotating speed of the motor 71-2 can be controlled, and the rotating speed of the motor 71-2 can be regulated by regulating the output signal of the controller 62, so that the pressure of the fluid sprayed out of the spray head 1 can be regulated.

The container 4 is removably mounted to the proximal end of the dental irrigator 100 containing the collapsible tank. The detachable connection mode can be conveniently used for cleaning the container 4 after being detached, and the container is more sanitary and safer in long-term use.

When the water spraying device is used, the control switch 3 is turned on, the motor 71-2 of the electric water absorption device 71 works, fluid in the container 4 is absorbed into the electric water absorption device 71 through the water pipe 5 and then is sprayed out from the water outlet pipe 71-3, and the sprayed fluid enters the spray gun 2 through the water pipe 5 and is finally sprayed out from the spray head 1 of the spray gun 2. By rotating the knob 61-1 or pressing the gear button 64, the proper water pressure can be selected according to personal preference and cleaning effect, and then the nozzle 1 is aligned to the part to be cleaned, so as to clean teeth and oral cavity.

The collapsible container 4-1 is a pressure vessel 401; the pressure vessel 401 contains a pressurizing means 43, and the pressurizing means 43 capable of increasing the pressure of the fluid is mounted on the housing 41. The pressurizing device 43 of the pressure vessel 401 may be an electric pressurizing device 43-1, and the electric pressurizing device 43-1 can increase the pressure of the fluid in the fluid containing space 41-3, so that the fluid in the fluid containing space 41-3 is pressed into the water pipe 5 from the fluid containing space 41-3 by the external pressure and is ejected from the spray head after passing through the spray gun 2.

The dental irrigator 100 comprising the collapsible water tank further comprises an upper cover 8. After being folded, the upper cover 8 and the foldable container 4-1 can jointly form a sealed tank body, so that the tooth flusher with the foldable water tank is protected, and is safer and more sanitary.

The tooth flusher with the foldable water tank comprises a spray head 1, a spray gun 2, a control switch 3, a container 4 and a water pipe 5. The spray head 1 is arranged at the front end of the spray gun 2; the control switch 3 can control the injection of the fluid in the spray gun 2; the fluid in the container 4 is connected to the spray gun 2 through the water pipe 5. The container 4 is a collapsible container 4-1, the collapsible container 4-1 comprising a housing 41 and a fluid containing space 42; the side wall 41-1 of the housing 41 is a foldable side wall 41-11. The foldable side walls 41-11 can be folded and unfolded by an external force. When the device is needed to be used, the foldable container 4-1 is unfolded, and washing liquid is injected into the foldable container 4-1 for oral cavity washing; when the tooth flusher needs to be carried out, the foldable container 4-1 is folded, and the accommodating volume of the tooth flusher with the foldable water tank is reduced, so that the tooth flusher is convenient to carry out. Because the volume of the foldable container 4-1 is reduced by the way of folding, the fluid containing space 42 of the container 4 is not polluted, and the container is cleaner and more sanitary to carry out.

Drawings

FIG. 1 is a perspective view of a foldable water tank-containing dental irrigator of the present invention when unfolded.

Fig. 1-1 is a front view of fig. 1.

Fig. 1-2 are top views of fig. 1.

Fig. 1-3 are cross-sectional views a-a of fig. 1-2.

Fig. 1-4 are exploded views of fig. 1.

Fig. 2 is a schematic perspective view of the flip cover of fig. 1 after the upper cover is placed thereon.

Fig. 2-1 is a top view of fig. 1.

Fig. 2-2 is a sectional view B-B of fig. 2-1.

Fig. 3 is a schematic perspective view of an organ type dental irrigator with a collapsible water tank according to the present invention when unfolded.

Fig. 3-1 is a schematic perspective view of the folded structure of fig. 3.

FIG. 4 is a schematic view showing the configuration of a tooth flusher of the present invention having a collapsible water tank, which is pressure-regulated in stages, when it is unfolded.

FIG. 5 is a schematic view of a one-touch type dental irrigator of the present invention with a collapsible reservoir in its expanded configuration.

Fig. 6 is a schematic view showing the structure of a dental irrigator of the present invention comprising a collapsible water tank, which comprises a pressure vessel, when unfolded. In the above figures:

100 is a dental irrigator of the utility model comprising a collapsible water tank.

The device comprises a sprayer 1, a spray gun 2, a control switch 3, a container 4, a water pipe 5, a water pressure adjusting device 6, a water absorbing device 7, an upper cover 8, a circuit system 9 and a power supply 10.

401 is a pressure container, 601 is a stepless water pressure regulating device, and 602 is a staged water pressure regulating device.

3-1 is a one-button control switch, and 4-1 is a foldable container.

41 is a shell, 42 is a fluid containing space, and 43 is a pressurizing device; 41-1 is a side wall, and 43-1 is an electric supercharging device; 41-11 is a foldable side wall, 43-11 is an air inlet pipe, 43-12 is a compressor, and 43-13 is an air outlet pipe; 41-11-1 is a high intensity region, and 41-11-2 is a low intensity region.

61 is an adjusting switch, 61-1 is a knob, and 61-2 is a positioning hole; 62 is a controller, 62-1 is a potentiometer, 62-2 is a control chip, 62-3 is a signal output system, and 62-1-1 is a connecting rod; signal output device 63 and gear button 64.

71 is an electric water absorption device, 71-1 is a water inlet pipe, 71-2 is a motor, and 71-3 is a water outlet pipe.

Detailed Description

Example 1: the utility model relates to a telescopic tooth flusher with a foldable water tank

Referring to fig. 1 to 2-2, the dental irrigator with a collapsible water tank of the present embodiment comprises a spray head 1, a spray gun 2, a control switch 3, a container 4, a water pipe 5, a water pressure regulating device 6, a water absorbing device 7, an upper cover 8, a circuit system 9 and a power supply 10.

The spray head 1 is arranged at the front end of the spray gun 2; the control switch 3 can control the injection of the fluid in the spray gun 2; the fluid in the container 4 is connected to the spray gun 2 through the water pipe 5.

The container 4 is a collapsible container 4-1.

Referring to fig. 1 and 2, in this embodiment, the foldable side walls 41-11 are folded in a telescoping manner. When the tooth flusher is folded in a nesting mode, the foldable side walls 41-11 can be folded upwards and wrapped outside the upper part of the tooth flusher 100 with the foldable water tank, and the volume is small after the tooth flusher is contracted.

In this embodiment, the dental irrigator 100 comprising a collapsible water tank further comprises a water pressure regulating device 6. The water pressure adjusting device 6 can adjust the water pressure sprayed out by the spray gun 2.

The water pressure adjusting device 6 is a stepless water pressure adjusting device 601, and can continuously adjust the water pressure sprayed by the spray gun 2, and can meet all water pressure requirements.

The stepless water pressure adjusting device 601 comprises an adjusting switch 61, a controller 62 and a signal output device 63; the adjustment of the adjustment switch 61 can continuously adjust the signal output by the controller 62, thereby continuously adjusting the pressure of the fluid sprayed from the spray gun 2. Since the regulating switch 61 of the stepless water pressure regulating device 601 can continuously regulate the signal output by the controller 62, the signal output by the output device 63 can be continuously changed, and the continuous regulation of the fluid pressure sprayed by the spray gun 2 can be realized by continuously regulating the output signal of the controller 62. When the user uses the tooth flusher, the most comfortable water pressure can be adjusted according to personal tolerance and hobby, and the cleaning effect and the comfort degree of the tooth flusher in the using process are greatly enhanced.

In this embodiment, the adjusting switch 61 is a knob type adjusting switch.

The applicant only lists the knob type stepless water pressure regulation mode, but those skilled in the art can design different stepless water pressure regulation modes according to needs, and the applicant does not exemplify the modes herein, but does not depart from the protection scope of the present application.

Referring to fig. 4, the water pressure regulating device 6 may also be a staged water pressure regulating device 602. The staged water pressure regulator 602 includes a gear button 64. Different gear buttons 64 correspond to different set water pressures, and by pressing the different gear buttons 64, the spray gun 2 can spray washing liquid with different pressures. The operation process is simpler and more convenient because the stepless water pressure adjusting device 601 does not need to find the proper water pressure.

Referring to fig. 5, the water pressure regulating device 6 may be integrated with the control switch 3 to form a one-touch control switch 3-1, and the one-touch control switch 3-1 can control the power-on, the water pressure regulation and the power-off. The whole process of oral cavity flushing can be realized by only one key in a one-key control mode, and the use process is very simple and convenient.

Referring to fig. 1-3, the dental irrigator 100 comprising a collapsible water tank comprises a water absorbing device 7; the water absorbing device 7 can absorb the fluid in the container 4 into the spray gun 2 through the water pipe 5 and then spray the fluid out of the spray head 1.

The water absorbing device 7 can be a manual water absorbing device or an electric water absorbing device 71.

In this embodiment, the water absorbing device 7 is an electric water absorbing device 71; the electric water absorption device 71 comprises a water inlet pipe 71-1, a motor 71-2 and a water outlet pipe 71-3; the motor 71-2 works, the liquid in the container 4 is sucked into the electric water sucking device 71 through the water pipe 5 and then is sprayed out from the water outlet pipe 71-3, and the sprayed fluid is sprayed out from the spray gun 2 through the water pipe 5.

The dental irrigator of this embodiment comprising a collapsible reservoir further comprises circuitry 9 and a power supply 10. The power supply 10, the electric water absorption device 71, the stepless water pressure regulating device 601 and the control switch 3 are connected together through the circuit system 9.

In this embodiment, the dental irrigator 100 comprising a collapsible water tank further comprises an upper cover 8. After being folded, the upper cover 8 is covered, and the upper cover 8 and the foldable container 4-1 can jointly form a complete tank body, so that the tooth flusher with the foldable water tank is protected, and is safer and more sanitary.

Referring to fig. 6, the vessel 4 may also be a pressure vessel 401. The pressurizing device 43 of the pressure vessel 401 is an electric pressurizing device 43-1, and the electric pressurizing device 43-1 can increase the pressure of the fluid in the fluid containing space 41-3, so that the fluid in the fluid containing space 41-3 is pressed into the water pipe 5 from the fluid containing space 41-3 under the action of the pressure and is ejected from the spray head after passing through the spray gun 2.

The electric supercharging device 43-1 can be an air compressor system and comprises an air inlet pipe 43-11, a compressor 43-12 and an air outlet pipe 43-13. In operation, the compressor 43-12 is operated to pressurize the air drawn in from the inlet pipe 43-11 and then pressurize the fluid in the fluid-containing space 41-3 through the outlet pipe 43-13 disposed above the fluid.

The controller 62 of the stepless water pressure adjusting device 601 can control the pressure of the fluid in the fluid accommodating space 41-3 increased by the compressor 43-12 through the signal output by the output device 63, and can control the pressure of the fluid sprayed from the spray gun 2 by continuously adjusting the increased pressure.

In this embodiment, since the container 4 is a foldable container 4-1, when the dental irrigator is required to be used, the container 4 is unfolded, a washing liquid is filled into the container 4 for oral cavity irrigation, and when the dental irrigator is required to be carried out, the foldable container 4-1 is folded. Because the volume of the foldable container 4-1 is reduced in a self-folding mode, other components such as the spray gun 2 and the like do not need to be placed in the container 4, the fluid containing space 42 of the container 4 cannot be polluted, and the container is carried out more cleanly and sanitarily

Example 2: organ type tooth flusher with foldable water tank

Referring to fig. 3 and 3-1, the present embodiment is different from embodiment 1 in that: in this embodiment, the foldable side walls 41-11 of the foldable container 4-1 of the dental irrigator 100 having the foldable water tank are folded in an accordion manner.

The collapsible side walls 41-11 are formed by alternating high strength regions 41-11-1 and low strength regions 41-11-2. The accordion folding is realized by folding the low-strength areas 41-11-2 one by one outside the corresponding high-strength areas 41-11-1 to fold the foldable side walls 41-11.

In this embodiment, because the mode that adopts organ formula folding one by one is folded, through the folding stack of multilayer, the folding height of water tank can be higher than the height of telescopiform folding mode, and the water tank volume can be bigger.

It should be noted that structures disclosed and illustrated herein may be replaced by other structures having the same effect, and the described embodiments of the utility model are not the only structures for carrying out the utility model. Although preferred embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that these embodiments are by way of example only and that numerous changes, modifications and substitutions may be made without departing from the utility model by those skilled in the art, and it is intended that the scope of the utility model be defined by the spirit and scope of the appended claims.

Claims

1. Tooth flusher that contains collapsible water tank, its characterized in that: the tooth flusher (100) with the foldable water tank comprises a spray head (1), a spray gun (2), a control switch (3), a container (4) and a water pipe (5);

A. the spray head (1) is arranged at the front end of the spray gun (2); the control switch (3) can control the injection of the fluid in the spray gun (2); the fluid in the container (4) is connected with the spray gun (2) through the water pipe (5);

B. the container (4) comprises a foldable container (4-1);

C. the collapsible container (4-1) comprises a housing (41) and a fluid containing space (42); the side wall (41-1) of the shell (41) comprises a foldable side wall (41-11).

2. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the foldable side walls (41-11) are made of elastic materials.

3. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the foldable side walls (41-11) are folded in a telescoping manner.

4. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the foldable side walls (41-11) are folded in an organ manner.

5. A dental irrigator comprising a collapsible tank according to claim 4, wherein: the collapsible side walls (41-11) are formed by alternating high strength regions (41-11-1) and low strength regions (41-11-2).

6. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the control switch (3) is a one-button control switch (3-1), and the one-button control switch (3-1) can control starting, water pressure regulation and stopping.

7. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the tooth flusher (100) with the foldable water tank also comprises a water pressure adjusting device (6).

8. A dental irrigator comprising a collapsible tank according to claim 7, wherein: the water pressure regulating device (6) is a stepless water pressure regulating device (601) or a staged water pressure regulating device (602).

9. A dental irrigator comprising a collapsible tank according to claim 8, wherein: the water pressure adjusting device (6) is a stepless water pressure adjusting device (601); the stepless water pressure adjusting device (601) comprises an adjusting switch (61), a controller (62) and a signal output device (63); the adjusting switch (61) can be adjusted to continuously adjust the signal output by the controller (62), so that the pressure of the fluid sprayed by the spray gun (2) can be continuously adjusted.

10. A dental irrigator comprising a collapsible tank according to claim 9, wherein: the signal regulated by the controller (62) is a voltage, or a current, or a power, or a frequency, or a waveform.

11. A dental irrigator comprising a collapsible tank according to claim 9, wherein: the adjusting switch (61) is a knob type adjusting switch.

12. A dental irrigator comprising a collapsible tank according to claim 11, wherein: the adjusting switch (61) comprises a knob (61-1) and a positioning hole (61-2); the controller (62) comprises a potentiometer (62-1) and a control chip (62-2), wherein an output signal of the potentiometer (62-1) is an input signal of the control chip (62-2), and the output signal of the control chip (62-2) can be controlled; a connecting rod (62-1-1) is arranged on the potentiometer (62-1), and the connecting rod (62-1-1) can be embedded in the positioning hole (61-2); the connecting rod (62-1-1) can be driven to rotate by rotating the knob (61-1), so that the size of an output signal of the potentiometer (62-1) is adjusted, and the output signal of the control chip (62-2) is adjusted.

13. A dental irrigator comprising a collapsible tank according to claim 8, wherein: the grading water pressure adjusting device (602) comprises a gear button (64).

14. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the tooth flusher (100) with the foldable water tank comprises a water suction device (7); the water absorption device (7) can absorb the fluid in the container (4) into the spray gun (2) through the water pipe (5) and then spray out from the spray head (1).

15. A dental irrigator comprising a collapsible tank according to claim 14, wherein: the water absorption device (7) is a manual water absorption device or an electric water absorption device (71).

16. A dental irrigator comprising a collapsible tank according to claim 15, wherein: the water absorbing device (7) is an electric water absorbing device (71); the electric water absorption device (71) comprises a water inlet pipe (71-1), a motor (71-2) and a water outlet pipe (71-3); the motor (71-2) works, liquid in the container (4) is sucked into the electric water suction device (71) through the water pipe (5) and then is sprayed out from the water outlet pipe (71-3), and sprayed out fluid is sprayed out from the spray gun (2) through the water pipe (5).

17. A dental irrigator comprising a collapsible tank according to claim 16, wherein: after an output signal of a controller (62) of the stepless water pressure regulating device (601) is output by a signal output device (63), the rotating speed of the motor (71-2) can be controlled, and the rotating speed of the motor (71-2) can be regulated by regulating the output signal of the controller (62), so that the pressure of the fluid sprayed out of the spray head (1) is regulated.

18. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the container (4) is removably mounted at the proximal end of the dental irrigator (100) containing the collapsible water tank.

19. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the collapsible container (4-1) is a pressure container (401); the pressure vessel (401) comprises a pressure increasing means (43), the pressure increasing means (43) capable of increasing the pressure of the fluid being mounted on the housing (41).

20. A dental irrigator comprising a collapsible tank according to claim 1, wherein: the tooth flusher (100) with the foldable water tank also comprises an upper cover (8).