CN220001978U

CN220001978U - Tooth-flushing device

Info

Publication number: CN220001978U
Application number: CN202321207601.0U
Authority: CN
Inventors: 蔡延钟
Original assignee: Ningbo Seago Electric Co ltd
Current assignee: Ningbo Seago Electric Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-11-14
Anticipated expiration: 2033-05-18

Abstract

The utility model proposes a tooth-rinsing device comprising: a main body module (1), wherein the main body module (1) is used for sucking liquid and forming water jet, the main body module (1) comprises a pump body (111) and a water inlet assembly (112), and the water inlet assembly (112) is connected with the pump body (111); -a tank module (3), the tank module (3) being for containing a liquid; and interlayer module (2), interlayer module (2) include interlayer main part (21) and hose (22) that intakes, interlayer main part (21) are provided with into water through-hole (211), intake hose (22) connect in intake through-hole (211), intake hose (22) insert water tank module (3), intake through-hole (211) intercommunication intake subassembly (112) with water tank module (3), wherein, interlayer module (2) are located main part module (1) with between water tank module (3).

Description

Tooth-flushing device

Technical Field

The utility model belongs to the field of oral cavity cleaning tools, and particularly relates to a tooth-flushing device.

Background

The dental irrigator can remove dental plaque and food remained in gum crevices by using flowing pulse water, thereby improving oral health. The existing tooth-flushing device has the defects that energy loss is caused due to unsmooth water flow channel in the process of pumping liquid, and the impact force of water flow for flushing teeth is affected.

Patent CN218832933U proposes a tooth-rinsing device, in which the main machine is extended into the water tank, and the moist environment in the water tank is liable to cause corrosion of the electronic structure or to cause short-circuit.

Disclosure of Invention

The utility model aims to provide a tooth-flushing device, which can avoid the influence of the moist environment of a water tank on the electronic structure in the tooth-flushing device.

An embodiment of the present utility model proposes a dental appliance including:

the main body module is used for sucking liquid and forming water jet, and comprises a pump body and a water inlet assembly, wherein the water inlet assembly is connected with the pump body;

a tank module for containing a liquid; and

the interlayer module comprises an interlayer main body and a water inlet hose, the interlayer main body is provided with a water inlet through hole, the water inlet hose is connected with the water inlet through hole, the water inlet hose is inserted into the water tank module, the water inlet through hole is communicated with the water inlet assembly and the water tank module,

wherein the barrier module is located between the body module and the tank module.

In at least one possible embodiment, a weight portion is provided at a lower end of the water intake hose, and the weight portion can maintain the water intake hose in a plumb state.

In at least one possible embodiment, the body module comprises a waterway structure comprising the pump body, the pump body comprises a water flow cavity and a diaphragm, the diaphragm defines a part of the water flow cavity, the diaphragm can deform to change the volume of the water flow cavity so as to pump liquid, the water flow cavity is provided with a water inlet hole and a water outlet hole, a water flow channel is formed in the water flow cavity, the water inlet hole and the water outlet hole are respectively positioned at two ends of the water flow channel, and liquid can flow unidirectionally along the water flow channel during the process of pumping liquid; and

and the electronic structure is used for driving the diaphragm of the pump body to deform, and pumping liquid through the deformation of the diaphragm.

In at least one possible embodiment, the axial cross section of the water flow channel is formed in a U shape, and the water inlet hole and the water outlet hole are positioned on the same side in the axial direction of the water flow cavity.

In at least one possible embodiment, the body module further comprises a body housing, the waterway structure and the electronic structure are both located inside the body housing,

under the state that the tooth washer is vertically placed, the waterway structure is integrally positioned on the upper side of the electronic structure, the water inlet hole and the water outlet hole are positioned on the upper side of the pump body, a sealing ring is sleeved on the periphery of the pump body, and the sealing ring seals a gap between the pump body and the main body shell.

In at least one possible embodiment, a drainage channel is arranged in the water flow cavity, the drainage channel and the diaphragm are arranged oppositely in the axial direction of the main body module, the drainage channel is positioned between the water inlet hole and the water outlet hole in the radial direction of the main body module, and the drainage channel is a circular arc concave surface.

In at least one possible embodiment, the electronic structure comprises a driving mechanism, the driving mechanism comprises a motor, a connecting rod and an eccentric gear, the motor can drive the eccentric gear to rotate, the eccentric gear is provided with a connecting rod shaft, the axis of the connecting rod shaft is staggered with the axis of the eccentric gear, the connecting rod is sleeved on the connecting rod shaft, and the diaphragm is connected with the connecting rod.

In at least one possible embodiment, the diaphragm is capable of contacting the wall surface on the opposite side of the diaphragm in a state where the diaphragm minimizes the volume of the water flow chamber, thereby compressing the volume of the water flow chamber as much as possible.

In at least one possible embodiment, in the water flow chamber, the volume of the side of the water inlet hole is smaller than the volume of the side of the water outlet hole.

In at least one possible embodiment, the tooth-rinsing device further comprises a nozzle detachably connected to the main body module, and a nozzle clamping groove is formed in the outer circumferential surface of the nozzle, and the nozzle clamping groove is annular.

Through adopting above-mentioned technical scheme, the liquid in the isolated water tank module of interlayer module and the part contact in the main part shell have avoided the humid environment in the water tank subassembly to make electronic structure receive corruption or arouse the short circuit damage.

Drawings

Fig. 1 shows a schematic structural view of a dental irrigator according to an embodiment of the present utility model.

Fig. 2 shows a schematic structural view of a body module of the dental appliance according to an embodiment of the present utility model.

Fig. 3 shows a schematic structural view of a main body casing and a main body panel of the dental caries according to an embodiment of the present utility model.

Fig. 4 shows a schematic structural view of a waterway structure and an electronic structure of a dental caries according to an embodiment of the present utility model.

Fig. 5 illustrates a schematic structural view of a waterway structure of a dental caries according to an embodiment of the present utility model.

Fig. 6 shows a cross-sectional view of the upper pump body of the dental irrigator according to an embodiment of the utility model.

Fig. 7A to 7C illustrate cross-sectional views of a pump body of the dental irrigator according to an embodiment of the present utility model.

Fig. 8 shows a schematic structural view of a driving mechanism of the dental irrigator according to an embodiment of the present utility model.

Fig. 9 shows a schematic structural view of a barrier module of the dental appliance according to an embodiment of the present utility model.

Fig. 10 and 11 are schematic views showing the structure of a barrier body of a dental appliance according to an embodiment of the present utility model.

Fig. 12 shows a schematic structural view of a water tank module of the dental appliance according to an embodiment of the present utility model.

Fig. 13 and 14 show cross-sectional views of a nozzle release mechanism of a dental irrigator according to an embodiment of the present utility model.

Description of the reference numerals

1 Main body Module

11 waterway structure 111 pump body 1111 up pump body 1112 down pump body 1113 diaphragm 1114 water flow cavity 1115 water inlet 1116 water outlet 1117 drainage 1118 sealing ring mounting groove

112 water inlet component 1121 water inlet connector 1122 water inlet adapter 1123 water inlet pipe 1124 water inlet valve block 1125 water inlet connector sealing ring

113 water outlet assembly 1131 water outlet joint 1132 water outlet valve plate 1133 nozzle adapter 1134 water outlet joint sealing ring

12. Electronic structure

121 driving mechanism 1211 motor 1212 first motor cabin cover 1213 second motor cabin cover 1214 gear 1215 connecting rod 1216 eccentric gear 1217 pin 1218 connecting rod shaft

122 circuit board 123 battery 124 battery mount

13 main body shell

14 main body top cover 141 nozzle mounting hole

15 main body panel 151 switch key 152 gear key

16 nozzle release mechanism 161 snap 162 spring

2 interlayer module

21 interlayer main body 211 water inlet through hole 212 buckling part 213 air hole

22 water inlet hose 221 counterweight

23 main body shell sealing ring 24 water tank sealing ring

3 Water tank module 31 water tank main body 32 bottom 33 bottom cover sealing ring, water injection cover plug 35 and cover plug sealing ring

4 nozzle 41 nozzle clamping groove

Detailed Description

To more clearly illustrate the above objects, features and advantages of the present utility model, specific embodiments of the present utility model are described in detail in this section with reference to the accompanying drawings. The present utility model can be embodied in various forms other than those described in this section, and modifications, variations, and alternatives thereto can be made by those skilled in the art without departing from the spirit of the utility model, and therefore the utility model is not limited to the specific examples disclosed in this section. The protection scope of the present utility model shall be subject to the claims.

As shown in fig. 1 to 14, an embodiment of the present utility model proposes a dental appliance including a main body module 1, a barrier module 2, a tank module 3, and a nozzle 4. The nozzle 4 is detachably connected to the body module 1, and the barrier module 2 separates the body module 1 from the tank module 3.

(Main body Module)

As shown in fig. 1 to 8, the body module 1 includes a waterway structure 11, an electronic structure 12, a body housing 13, a body top cover 14, and a body panel 15.

The main body casing 13 may have a cylindrical shape, and the main body top cover 14 may be coupled to a front end (an upper end of fig. 2) of the main body casing 13, and the main body top cover 14 is provided with a nozzle mounting hole 141 for inserting the nozzle 4. The main body panel 15 is provided on a side wall of the main body case 13. The outer peripheral surface of the main body housing 13 may be provided with an anti-slip protrusion, which can enhance the friction between the tooth-rinsing device and the palm of the hand when holding the tooth-rinsing device, thereby avoiding slipping off during use.

Both the waterway structure 11 and the electronic structure 12 are disposed inside the main body housing 13.

As shown in fig. 4 to 7C, the waterway structure 11 includes a pump body 111, a water inlet assembly 112 and a water outlet assembly 113, and the water inlet assembly 112 and the water outlet assembly 113 are connected to the pump body 111.

The pump body 111 includes an upper pump body 1111, a lower pump body 1112 and a diaphragm 1113, the diaphragm 1113 may be disposed between the upper pump body 1111 and the lower pump body 1112, a water flow chamber 1114 is defined between the upper pump body 1111 and the diaphragm 1113, and a water flow channel may be formed in the water flow chamber 1114 by providing a flow guiding channel 1117. The water flow chamber 1114 is provided with a water inlet 1115 and a water outlet 1116, and the water inlet 1115 and the water outlet 1116 are respectively positioned at both ends of the water flow channel, so that the liquid can flow unidirectionally along the water flow channel during pumping of the liquid.

As shown in fig. 6, 7A to 7C, the drain 1117 may be located on an axially opposite side of the diaphragm 1113, that is, the drain 1117 and the diaphragm 1113 are disposed opposite to each other in the axial direction of the body module 1, and between the inlet 1115 and the outlet 1116 in the radial direction, and the drain 1117 may be a circular arc concave surface with a smooth surface. In the water pumping and spraying process, the drainage channel 1117 can guide liquid to collect in the water outlet 1116, so that the liquid in the water flow cavity 1114 is completely discharged, the reaction force of water pressure on the diaphragm is reduced, the problem that the water inlet and outlet of the pump body are abnormal due to the fact that air is accumulated in the cavity of the pump and cannot be discharged is solved, and the impact force of water spraying is improved.

The axial cross-section of the water flow channel may form a U-shaped unidirectional flow channel, and the water inlet 1115 and the water outlet 1116 may be disposed on the same axial side of the water flow chamber 1114, e.g., the water inlet 1115 and the water outlet 1116 may be disposed on the upper side of the water flow chamber 1114. In the process from water inlet to water outlet, liquid flows in the U-shaped water flow channel along the axial direction, then flows along the radial direction and then flows along the axial direction, and the flow of the liquid is unidirectional and does not reciprocate, so that bubbles are avoided, and the kinetic energy loss caused by pulling the bubbles is reduced.

Here, the inlet holes 1115 and the outlet holes 1116 may be on the same diameter of the body module 1, i.e., the inlet holes 1115 and the outlet holes 1116 may be separated by a circumferential angle of 180 degrees. The axial cross-section of the water flow channel here may be taken along the axial direction of the body module 1, through the axial cross-sections of the inlet 1115 and outlet 1116.

The diaphragm 1113 may be made of an elastic material, for example, rubber, and the diaphragm 1113 sandwiched between the upper pump body 1111 and the lower pump body 1112 may have a waterproof effect, so that the water flow chamber 1114 may remain sealed, and leakage is not likely to occur. The volume of the water flow chamber 1114 (liquid pressure) can be varied by the deformation of the diaphragm 1113 to pump the liquid. The diaphragm 1113 may be connected to a link 1215 described later, and the diaphragm 1113 is deformed by the link 1215. Compared with a piston pump, in the process of pumping water and spraying water by the pump body 111, the reciprocating deformation process of the diaphragm 1113 can not rub the upper pump body 1111 and the lower pump body 1112, so that the energy loss caused by friction can be reduced, friction loss is reduced, and the working stability of the pump body is good.

During the reciprocal deformation of the diaphragm 1113, liquid may be pumped from the inlet opening 1115 into the flow chamber 1114 and then ejected from the outlet opening 1116. The pump body 111 in fig. 7B may be in a state after drawing liquid, the volume of the water flow chamber 1114 is larger, and the pump body 111 in fig. 7C may be in a state of spraying liquid, the volume of the water flow chamber 1114 is smaller.

The inclined plane with the adjacent structure included angle smaller than 60 degrees can not be formed in the water flow cavity 1114, so that a narrow space does not exist at the corners of the water flow cavity 1114, bubbles are not easy to generate when water flow in the water flow cavity 1114 collides with the cavity wall, the bubbles are not accumulated, and the kinetic energy of pump driving water spraying is large.

In the case where the volume of the water flow chamber 1114 is relatively small and the single water inflow is large enough, there may be no large bubbles of water flowing in the water flow chamber 1114, and some small bubbles may be present, but these small bubbles may be discharged with the water flow during the water discharge.

In a state where the diaphragm 1113 minimizes the volume of the water flow chamber 1114, the diaphragm 1113 can contact the wall surface of the opposite side of the diaphragm 1113, thereby compressing the volume of the water flow chamber 1114 as much as possible. Therefore, the air reserved in the water flow cavity 1114 is reduced as much as possible, the problem that the water inlet and outlet of the pump body is abnormal due to the fact that air backlog cannot be discharged is solved, and the impact force of water spraying is improved.

In the water flow cavity 1114, the volume of the side of the water inlet 1115 is smaller than the volume of the side of the water outlet 1116, and in the process that the diaphragm 1113 extrudes the space of the water flow cavity 1114, the liquid and the gas in the water flow cavity 1114 can preferentially flow to the side of the water outlet 1116 with larger space, so that vortex or irregular flow of water flow is avoided. With the membrane 1113 closest to the opposing side wall, a small amount of air trapped in the flow chamber 1114 can be smoothly pumped out of the outlet 1116, reducing flow resistance and energy losses, thereby minimizing the accumulation of air and liquid in the flow chamber 1114.

In the state that the tooth irrigator is vertically placed, the waterway structure 11 is integrally positioned on the upper side of the electronic structure 12. The periphery cover of the pump body 111 is equipped with the sealing washer, and the gap between the pump body 111 and the main part shell 13 can be sealed to the sealing washer, even rivers chamber 1114 is because of the too big liquid leakage that leads to of interior pressure, and the sealing washer also can prevent that liquid from flowing down and contacting electronic structure 12, avoids electronic structure 12 to damage, promotes the waterproof performance of tooth flusher. As shown in fig. 6, the outer circumferential surface of the upper pump body 1111 may be provided with a seal ring mounting groove 1118, and a seal ring may be provided in the seal ring mounting groove 1118.

As shown in fig. 5 to 7C, the water inlet assembly 112 may be connected to the water inlet hole 1115, and the water inlet assembly 112 includes a water inlet connector 1121, a water inlet adapter 1122, a water inlet pipe 1123, and a water inlet valve plate 1124. A water inlet pipe 1123 may be connected to the barrier module 2. The water inlet adaptor 1122 may be a U-shaped elbow, one end of the water inlet adaptor 1122 may be connected to the water inlet pipe 1123, and the other end of the water inlet adaptor 1122 may be connected to the water inlet connector 1121. The water inlet connector 1121 can be installed in the water inlet 1115 of the pump body 111, the water inlet connector 1121 is connected with a water inlet valve block 1124, the water inlet valve block 1124 is a one-way valve, and liquid can only enter the water flow cavity 1114 through the water inlet valve block 1124. The water inlet connector 1121 may be connected with a water inlet connector sealing ring 1125, and the water inlet connector sealing ring 1125 may seal a gap between the water inlet connector 1121 and the pump body 111, so as to prevent leakage at a joint between the two and avoid damaging the electronic structure 12.

As shown in fig. 2 and 5 to 7A, the water outlet assembly 113 may be connected to the water outlet 1116, and the water outlet assembly 113 includes a water outlet joint 1131, a water outlet valve plate 1132 and a nozzle adapter 1133. The water outlet joint 1131 can be connected to the water outlet hole 1116 of the upper pump body 1111, the water outlet joint 1131 can be connected with a water outlet joint sealing ring 1134, and the water outlet joint sealing ring 1134 can seal a gap between the water outlet joint 1131 and the pump body 111 to prevent liquid leakage at the joint of the water outlet joint 1131 and the pump body 111 and avoid damaging the electronic structure 12. The nozzle adapter 1133 is connected to the water outlet connector 1131, the nozzle adapter 1133 is used for connecting the nozzle 4, and a sealing ring can be arranged between the nozzle adapter 1133 and the water outlet connector 1131. The water outlet joint 1131 is connected with a water outlet valve plate 1132, the water outlet valve plate 1132 is a one-way valve, and liquid can only enter the water outlet joint 1131 from the pump body 111 through the water outlet valve plate 1132.

As shown in fig. 2, 4, 7A to 7C, and 8, the electronic structure 12 includes a driving mechanism 121, a wiring board 122, a battery 123, and a battery holder 124. The battery 123 is connected to a battery holder 124, and the circuit board 122 and the battery holder 124 may be connected to a driving mechanism 121. The driving mechanism 121 is connected to the pump body 111, and is used for driving the pump body 111 to work. The circuit board 122 is provided with a charging port, so that the tooth cleaning device can be conveniently charged and managed when the tooth cleaning device is lack of electricity. The charging port can be provided with a waterproof cover, and the waterproof cover can prevent liquid from flowing into the charging port, so that poor charging contact is caused.

The drive mechanism 121 includes a motor 1211, a first motor housing cover 1212, a second motor housing cover 1213, a gear 1214, a connecting rod 1215, an eccentric gear 1216, and a pin 1217. The first motor housing 1212 and the second motor housing 1213 are coupled together to form a housing, and the motor 1211, gear 1214, connecting rod 1215, eccentric gear 1216, and pin 1217 may be disposed inside the housing. The gear 1214 is connected to the output shaft of the motor 1211, the eccentric gear 1216 is rotatably connected to the inside of the housing through a pin 1217, and the pin 1217 is located at the center of the eccentric gear 1216. The gear 1214 and the eccentric gear 1216 are engaged, and the axes of the gear 1214 and the eccentric gear 1216 may be perpendicular to each other. The eccentric gear 1216 is provided with a link shaft 1218, the link shaft 1218 is offset from the axis of the eccentric gear, the axis of the link shaft 1218 is offset from the axis of the pin 1217, and the link 1215 is fitted over the link shaft 1218 of the eccentric gear 1216, so that the link 1215 can swing when the eccentric gear 1216 rotates. The connecting rod 1215 may be screwed to the diaphragm 1113 of the pump body 111. Briefly, the drive mechanism 121 constitutes a motor-driven crank linkage for driving the diaphragm 1113 to reciprocate for deformation.

As shown in fig. 1 and 3, the body panel 15 may be provided with key holes in which keys are provided, and the keys may include a switch key 151 and a gear key 152.

The switch button 151 is used to activate the tooth irrigator and the gear button 152 is used to switch the operating mode. When different modes are switched, the main body panel 15 may have different light indication effects. Specifically, the main body panel 15 may be marked with indication marks of a non-passing gear, for example, "soft", "standard", "massage", "DIY", etc., and these indication marks may be words or symbols, and specifically may be designed according to the functional requirements of the actual product, which is not limited by the present utility model.

When the tooth cleaning device is used, a user can firstly press the switch key 151, then press the gear key 152, the corresponding mode light is lightened, tooth cleaning can be carried out after the corresponding mode is selected, and after tooth cleaning is finished, the user presses the switch key 151 again, so that the tooth cleaning device stops working. The tooth flushing device can have a gear memory function, and the gear selected last time is selected by default for flushing teeth when the tooth flushing device is started again.

The main body panel 15 can be towards the circuit board 122, can be provided with sealed cushion between circuit board 122 and the main body panel 15, and sealed cushion can prevent the outside water of tooth-flushing device from the button hole infiltration main body shell 13 of main body panel 15, flows to circuit board 122 or pump body 111 on, avoids circuit board 122 or pump body 111 to lead to trouble or inefficacy owing to the water pick-up, influences the normal use of tooth-flushing device.

As shown in fig. 13 and 14, the nozzle release mechanism 16 is provided in the main body top cover 14, and the nozzle release mechanism 16 includes a clip 161 and an elastic member 162, and the clip 161 is partially exposed to the main body housing 13 and the main body top cover 14. The clip 161 may be provided with a through hole through which the nozzle 4 passes. The elastic member 162 may abut against the locking member 161, so that the edge of the through hole of the locking member 161 is embedded into the nozzle locking groove 41, and the nozzle 4 is restricted from moving in the axial direction, thereby locking the nozzle 4.

As shown in fig. 14, pressing the clamping member 161 can compress the elastic member 162 against the elastic force, the edge of the through hole can be far away from the nozzle clamping groove 41, so as to unlock the nozzle, and the nozzle 4 can be taken out from the main body module 1 along the axial movement.

(interlayer Module)

As shown in fig. 1, 9 to 11, the main body housing 13 and the tank module 3 are connected to the barrier module 2, and the barrier module 2 is located between the main body module 1 and the tank module 3. The interlayer module 2 can be connected to the main body shell 13 in a clamping and fixing or threaded fixing mode, and the interlayer module 2 is used for isolating liquid in the water tank module 3 from contacting with components in the main body shell 13, so that the electronic structure 12 is prevented from being corroded or damaged by short circuit caused by the humid environment in the water tank assembly 3.

The barrier module 2 comprises a barrier body 21, a water inlet hose 22, a body housing seal ring 23 and a tank seal ring 24.

The interlayer body 21 is provided with a water inlet through hole 211, and the water inlet through hole 211 communicates the waterway structure 11 and the water tank module 3. The water inlet pipe 1123 of the water inlet assembly 112 may be connected to one end of the water inlet through-hole 211, and the water inlet hose 22 is connected to the other end of the water inlet through-hole 211. The water inlet hose 22 may be inserted into the water tank module 3, and a weight part 221 is provided at a lower end of the water inlet hose 22, and the weight part 221 may be sleeved on the water inlet hose 22. The weight 221 may keep the water intake hose 22 in a plumb state, so that the end of the water intake hose 22 contacts the bottom of the tank module 3. The water inlet hose 22 can completely drain the liquid in the water tank module 3, so that the problem that the liquid is difficult to absorb when the liquid in the water tank module 3 is reduced is avoided, and the liquid inlet amount of the tooth washer is insufficient, so that the cleaning effect is influenced.

The interlayer body 21 may be provided with a fastening portion 212, and the interlayer module 2 may be detachably connected to the tank module 3 through the fastening portion 212, and the interlayer body 21 and the tank module 3 may be connected in a rotating fastening manner.

The main body casing seal ring 23 may be sleeved on the interlayer main body 21, and the main body casing seal ring 23 is located at the joint of the interlayer main body 21 and the main body casing 13. The water tank sealing ring 24 can be sleeved on the interlayer main body 21, and the water tank sealing ring 24 is positioned at the joint of the interlayer main body 21 and the water tank module 3. The body housing gasket 23 and the tank gasket 24 can prevent the liquid of the tank module 3 from leaking toward the body module 1.

The interlayer main body 21 is also provided with air holes 213, the air holes 213 enable the water tank module 3 to be communicated with the outside, the air holes 213 can balance pressure, and the water tank module 3 is prevented from being broken when a water outlet channel is blocked.

(Water tank Module)

As shown in fig. 1 and 12, the tank module 3 includes a tank main body 31, a bottom cover 32, a bottom cover gasket 33, a water filling lid plug 34, and a lid plug gasket 35. The tank module 3 is for containing a liquid.

The upper end surface of the water tank body 31 may be provided with a fastening hole 311, and the fastening hole 311 may be mounted in cooperation with the fastening portion 212 of the barrier body 21, so that the water tank body 31 may be detachably connected to the barrier module 2.

The bottom cover 32 can be fastened or clamped at the bottom of the water tank main body 31, the water tank main body 31 can be conveniently cleaned by disassembling the bottom cover 32, and the water tank main body 31 can be conveniently cleaned by the detachable assembly mode of the bottom cover 32. The water tank main body 31 is provided with a water injection hole, liquid can be injected into the water tank main body 31 from the water injection hole, the water injection hole can be provided with a water injection cover plug 34, and the water injection cover plug 34 can seal and close the water injection hole to prevent the liquid in the water tank main body 31 from being spilled. A bottom cover sealing ring 33 can be arranged between the bottom cover 32 and the water tank main body 31, a cover plug sealing ring 35 can be arranged between the water injection cover plug 34 and the water tank main body 31, and the bottom cover sealing ring 33 and the cover plug sealing ring 35 can improve the overall tightness and waterproofness of the water tank module 3.

(nozzle)

As shown in fig. 1, the outer peripheral surface of the nozzle 4 may be provided with a nozzle locking groove 41, and the nozzle locking groove 41 may be annular. The nozzle 4 can also rotate in the locking state, so that the water outlets of the nozzle can be conveniently oriented at different angles, and teeth gaps can be cleaned better.

As shown in fig. 13 and 14, the nozzle 4 may be inserted into the body module 1 and detachably attached to the body module 1.

The dental irrigator of the present utility model has at least one of the following benefits.

(1) By forming a unidirectional water flow channel in the pump, bubbles are avoided, kinetic energy loss caused by pulling the bubbles is reduced, and the impact force of the formed water spray water flow is large.

(2) The drainage channel 1117 can guide liquid to collect in the water outlet 1116, so that the liquid in the water flow cavity 1114 is discharged completely as much as possible, the reaction force of water pressure on the diaphragm is reduced, the problem that the water inlet and outlet of the pump body is abnormal due to the fact that air is accumulated in the cavity of the pump and cannot be discharged is solved, and the impact force of water spraying is improved.

(3) The sealing ring is sleeved on the periphery of the pump body 111, and can prevent liquid from flowing downwards to contact the electronic structure 12, avoid damaging the electronic structure 12 and improve the waterproof performance of the tooth washer.

(4) The barrier module 2 isolates the liquid in the tank module 3 from contacting components in the main housing 13, avoiding the wet environment in the tank assembly 3 from corroding the electronic structure 12 or causing short circuit damage.

It is to be understood that at least some aspects or features of the above-described implementations, embodiments or examples may be combined as appropriate.

It is to be understood that in the present utility model, when the number of parts or members is not particularly limited, the number may be one or more, and the number herein refers to two or more. For the case where the number of parts or members is shown in the drawings and/or described in the specification as a specific number such as two, three, four, etc., the specific number is generally illustrative and not restrictive, it can be understood that a plurality, i.e., two or more, but this does not mean that the present utility model excludes one.

In the present utility model, unless explicitly stated or limited otherwise, terms such as "mounted," "assembled," "connected," "coupled," "joined," "abutting," "communicating," "conducting," "fixed," "fastened," and the like are to be construed broadly, as they may be, for example, direct or indirect. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other, or may interact with each other, unless explicitly stated or limited otherwise. For example, the communication/conduction may be direct communication/conduction or indirect communication/conduction via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless explicitly stated or defined otherwise, one member is provided/mounted/located/accommodated/placed in/within another member, inside, etc., may be either of the following two cases: a portion or a majority of the one member is located within the other member; and the one member is fully received within the other member.

While the present utility model has been described in detail using the above embodiments, it will be apparent to those skilled in the art that the present utility model is not limited to the embodiments described in the present specification. The present utility model can be modified and implemented as modified embodiments without departing from the spirit and scope of the present utility model as defined by the claims. Accordingly, the descriptions in this specification are for the purpose of illustration and are not intended to be limiting in any way.

Claims

1. A dental irrigator, comprising:

a tank module for containing a liquid; and

2. The dental irrigator of claim 1, wherein a weight is provided at a lower end of the water intake hose, the weight being capable of maintaining the water intake hose in a plumb state.

3. The dental irrigator of claim 1 wherein the body module includes a waterway structure including the pump body, the pump body including a water flow chamber and a diaphragm defining a portion of the water flow chamber, the diaphragm being deformable to vary the volume of the water flow chamber to pump liquid, the water flow chamber being provided with a water inlet and a water outlet, a water flow channel being formed in the water flow chamber, the water inlet and the water outlet being located at respective ends of the water flow channel, the liquid being capable of flowing unidirectionally along the water flow channel during pumping of the liquid; and

4. A dental irrigator according to claim 3 wherein the water flow channel has a U-shaped cross-section with the inlet and outlet openings on the same side of the water flow chamber in the axial direction.

5. The dental rinse of claim 3 wherein the body module further comprises a body housing, the waterway structure and the electronic structure are both located inside the body housing,

6. A dental caries device according to claim 3, wherein a drainage channel is provided in the water flow chamber, said drainage channel and said diaphragm being disposed opposite each other in the axial direction of the body module, said drainage channel being located between the inlet opening and the outlet opening in the radial direction of the body module, said drainage channel being a circular arc concave surface.

7. A dental bumper according to claim 3, wherein the electronic structure comprises a driving mechanism, the driving mechanism comprises a motor, a connecting rod and an eccentric gear, the motor can drive the eccentric gear to rotate, the eccentric gear is provided with a connecting rod shaft, the axis of the connecting rod shaft is staggered with the axis of the eccentric gear, the connecting rod is sleeved on the connecting rod shaft, and the diaphragm is connected to the connecting rod.

8. A dental irrigator according to claim 3 wherein the diaphragm is capable of contacting the walls on opposite sides of the diaphragm in a condition where the diaphragm minimises the volume of the water flow chamber, thereby minimising the volume of the water flow chamber.

9. A dental irrigator according to claim 3 wherein in the water flow chamber the volume of the side of the inlet opening is less than the volume of the side of the outlet opening.

10. The dental irrigator of claim 1, further comprising a nozzle detachably connected to the body module, the nozzle having an outer peripheral surface provided with a nozzle slot, the nozzle slot being annular.