Dual tank oral irrigator with switchable liquid source

Abstract

To provide a dual tank mouth irrigator which has a simple structure, an electromagnetic valve does not wear out a water pipe, has a long service life, and is capable of switching a liquid source. The device includes a solenoid valve 100, a first tank, a second tank, a water pipe, and a pump assembly. The solenoid valve includes an outlet 110, a first inlet 120, a second inlet 130, a valve core 150, and an electromagnetic coil. By controlling the energization and interruption of the electromagnetic coil, the movement of the valve core can be controlled to seal the first inlet or the second inlet. The first inlet is connected to the first tank, the second inlet is connected to the second tank, and one end of the water pipe is connected to the outlet. The pump assembly is connected to the other end of the water pipe and the nozzle of the dual tank oral irrigator. The first tank can store a spray cleaning liquid, and the second tank can store a mouthwash, and a user can select the liquid by the solenoid valve.

Description

[Technical field]

[0001] The present invention relates to the technical field of oral irrigators, and more particularly to a dual tank oral irrigator capable of switching between liquid sources. [Background technology]

[0002] Oral irrigators are auxiliary tools for cleaning the oral cavity, and clean the teeth and spaces between the teeth by using the impact of a pulsating water flow. The main effect of mouthwash is to clean the oral cavity, mask bad breath caused by bacteria or yeast breaking down food residue, and leave the mouth feeling comfortable and fresh. The functions of the two are complementary, and users usually use the oral irrigator to clean their teeth and then the mouthwash to rinse their mouth. However, both oral irrigators and mouthwash (which are generally bottled) take up space, so there is hope for improved portability when traveling.

[0003] The utility model with the authorization publication number CN213130038U discloses a dual tank oral irrigator, which is designed with two tanks and two pipes in the oral irrigator to realize the charging of different liquids and meet the needs of users, but its structure is complicated, the space occupied by the pipes is relatively large, and the switch for controlling the outflow of liquid causes wear on the pipes, so its stability and durability still need to be improved. Summary of the Invention

[0004] SUMMARY OF THE DISCLOSURE In order to solve or ameliorate at least one of the problems raised in the background art, the present invention provides a dual tank oral irrigator with switchable fluid sources.

[0005] The dual tank oral irrigator provided by the present invention has the following features: a solenoid valve including an outlet portion, a first inlet portion, a second inlet portion, a valve core, and an electromagnetic coil, the solenoid valve being capable of controlling movement of the valve core to seal the first inlet portion or the second inlet portion by controlling energization / cutoff of the electromagnetic coil; a first tank to which the first inlet portion is connected; a second tank to which the second inlet port is connected; a water pipe having one end connected to the outlet portion; a pump assembly including a pressure chamber, the pressure chamber being connected to the other end of the water conduit and to the mouth outlet of the oral irrigator.

[0006] In at least one embodiment, the solenoid valve comprises: a valve body including a main portion, the first inlet portion and the second inlet portion extending outward from the main portion along an axial direction, and an outlet portion extending outward from the main portion along a radial direction, wherein a boundary surface between the first inlet portion and the main portion is a first end surface, a boundary surface between the second inlet portion and the main portion is a second end surface, the electromagnetic coil is installed within the main portion or on the radially outer side, the electromagnetic coil is located at one end of the main portion close to the second end surface, and the electromagnetic coil attracts the valve core after being energized and moves it toward the second end surface along the axial direction and can abut against the second end surface, A spring is connected to the radial outside of the valve core, and the spring is further in contact with or connected to the second end face, and after the electromagnetic coil is cut off, the spring moves the valve core along the axial direction toward the first end face and can abut against the first end face.

[0007] In at least one embodiment, the circumferential surface of the valve core includes an arcuate surface and a flat surface, and the circumferential inner wall surface of the main portion includes a cylindrical surface, and a liquid flow path is formed between the flat surface of the valve core and the cylindrical surface of the main portion.

[0008] In at least one embodiment, the valve core includes a valve core main part and a valve core abutment part, the valve core main part has the arc surface and the plane, the cylindrical valve core abutment part is formed at one end of the valve core facing the first end face, and in the axial projection of the valve core, the valve core abutment part is located inside the valve core main part.

[0009] In at least one embodiment, a valve body support frame is installed on the outside of the valve body, and the valve body support frame includes a first valve body support frame passage and a second valve body support frame passage, the second tank is connected to the first inlet portion via the first valve body support frame passage, and the first tank is connected to the second inlet portion via the second valve body support frame passage.

[0010] In at least one embodiment, the first valve body support frame passage extends directly into the second tank, and the second valve body support frame passage extends into the first tank via a bend.

[0011] In at least one embodiment, the pump assembly includes a pressure chamber, one end of the pressure chamber is connected to the water conduit, and the liquid in the solenoid valve is introduced into the pressure chamber, and a first one-way valve is disposed between the water conduit and the pressure chamber; The other end of the pressure chamber is connected to the nozzle, and the liquid in the pressure chamber is ejected from the oral irrigator through the nozzle, and a second one-way valve is installed between the pressure chamber and the nozzle.

[0012] In at least one embodiment, the pump assembly comprises: A gear shaft; an eccentric shaft sleeve fixedly connected to the gear shaft; a transmission rod, one end of which is fitted into the eccentric shaft sleeve and the other end of which is connected to a diaphragm, the diaphragm being formed as one surface of the pressure chamber;

[0013] In at least one embodiment, the dual tank oral irrigator includes a power source and a motor, the power source connected to the motor, and an output shaft of the motor driving the rotation of the gear shaft.

[0014] In at least one embodiment, the dual tank oral irrigator includes a nozzle, the nozzle being connected to the spout.

[0015] The first tank provided by the embodiment of the present invention can store the spray cleaning liquid, and the second tank can store the mouthwash, and the user can select the liquid through the solenoid valve, for example, after the mouthwash is completed, the mouthwash can be used to rinse the mouth, which is relatively convenient to carry. The present invention only uses one water pipe, not two pipes as in the background art, so the structure is relatively simple and the space allocation is more reasonable. The solenoid valve also does not wear the water pipe, so the service life of the mouthwash is relatively long overall. [Brief description of the drawings]

[0016] [Figure 1] 1 is a structural schematic diagram of a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Diagram 2] A cross-sectional view of a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Diagram 3] A structural schematic diagram of a pump assembly in a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Figure 4] This is an axial view of an solenoid valve in a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Diagram 5] A cross-sectional view of an solenoid valve in a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Figure 6] 1 is a structural schematic diagram of the valve core and spring of an electromagnetic valve in a dual-tank oral irrigator with switchable liquid source based on an embodiment of the present invention. [Figure 7] 1 is a structural schematic diagram of the valve body support frame of an electromagnetic valve in a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. [Figure 8] A cross-sectional view of an electromagnetic valve installed in a dual-tank oral irrigator with switchable liquid sources based on an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] In the following, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood that the specific description is merely intended to teach a person skilled in the art how to implement the present invention, and does not present all possible implementations of the present invention, nor does it limit the scope of the present invention.

[0018] The present invention provides a dual tank oral irrigator capable of switching between liquid sources. Referring to Figures 1 to 5, the dual tank oral irrigator may include a solenoid valve 100, a first tank 210, a second tank 220, a water guide 300 and a pump assembly 400.

[0019] 4 and 5, the solenoid valve 100 may include an outlet port 110, a first inlet port 120, a second inlet port 130, a valve core 150, and an electromagnetic coil. By controlling the energization and interruption of the electromagnetic coil, the movement of the valve core 150 may be controlled to seal the first inlet port 120 and the second inlet port 130. The first inlet port 120 may be connected to a first tank 210, the second inlet port 130 may be connected to a second tank 220, and the outlet port 110 is connected to one end of a water guide tube 300. By controlling the sealing states of the first inlet port 120 and the second inlet port 130 through the electromagnetic coil, the liquid in the corresponding tank may be selected to realize the liquid source switching of the oral irrigator.

[0020] 3, the pump assembly 400 may include a pressure chamber 410, which is connected to the other end of the water guide 300 and the nozzle 500 of the oral irrigator, and a nozzle 510 may be further installed on the outside of the nozzle 500 (see FIGS. 1 and 2). As shown by the dotted arrow in FIG. 3, the liquid in the first tank 210 or the second tank 220 may be ejected from the nozzle 500 after passing through the water guide 300 and the pressure chamber 410.

[0021] Optionally, the first tank 210 can store a spray rinse liquid, and the second tank 220 can store a mouthwash, and the volume of the first tank 210 can be greater than that of the second tank 220. After the user has finished washing his / her mouth, he / she can rinse his / her mouth with the mouthwash sprayed from the oral irrigator, and there is no need to carry two separate hygiene products, so that the portability is relatively high. The present invention uses only one water pipe 300, not two pipes (water pipes) as in the background art, so that the structure is relatively simple and the space allocation is more reasonable. The water pipe 300 is not worn out during the process of switching the operating position of the solenoid valve 100, so that the oral irrigator is more robust and durable.

[0022] In one embodiment of the present invention, referring to Fig. 5, the solenoid valve 100 may include a valve body 140. The valve body 140 may include a main portion 141, a first inlet portion 120 and a second inlet portion 130 extending outward from the main portion 141 along an axial direction, and an outlet portion 110 extending outward from the main portion 141 along a radial direction. The interface between the first inlet portion 120 and the main portion 141 is a first end surface 121, and the interface between the second inlet portion 130 and the main portion 141 is a second end surface 131. The main portion 141 may be formed by joining two structures.

[0023] An electromagnetic coil (not shown) is installed within the main portion 141 or radially outside thereof, and after electricity is applied, the electromagnetic coil can attract the valve core 150 and move it along the axial direction of the main portion 141 toward the second end face 131 and abut against the second end face 131.

[0024] 5 and 6, a spring 180 is connected to the radial outside of the valve core 150, and the spring 180 further abuts or is connected to the second end face 131. After the electromagnetic coil is cut off, the spring 180 can move the valve core 150 along the axial direction toward the first end face 121 and abut against the first end face 121.

[0025] 5 and 6 , in one embodiment of the present invention, the circumferential surface of the valve core 150 includes an arc surface 151 and a flat surface 152, the circumferential inner wall surface of the main part 141 includes a cylindrical surface 1411, and a liquid flow path is formed between the flat surface 152 of the valve core 150 and the inner wall surface of the main part 141. When the valve core 150 seals the first inlet part 120, the liquid in the second inlet part 130 can communicate with the outlet part 110 through the liquid flow path.

[0026] 5, in one embodiment of the present invention, the valve core 150 includes a valve core main part 153 and a valve core abutment part 154. The valve core main part 153 has the aforementioned arc surface 151 and flat surface 152. The valve core abutment part 154 is formed in a cylindrical shape at one end of the valve core 150 facing the first end face 121. In the axial projection of the valve core 150, the valve core abutment part 154 is located inside the valve core main part 153. When the valve core 150 seals the first inlet part 120, the space between the valve core abutment part 154 and the outlet part 110 is relatively large, so that the liquid from the second inlet part 130 can easily communicate with the outlet part 110.

[0027] 7 and 8, in one embodiment of the present invention, a valve body support frame 160 is installed on the outside of the valve body 140, the valve body support frame 160 includes a first valve body support frame passage 161 and a second valve body support frame passage 162, the second tank 220 is connected to the first inlet portion 120 via the first valve body support frame passage 161, and the first tank 210 is connected to the second inlet portion 130 via the second valve body support frame passage 162. For example, the first valve body support frame passage 161 extends directly into the second tank 220, and the second valve body support frame passage 162 extends into the first tank 210 via a bent pipe. The valve body support frame 160 simply fixes the position of the solenoid valve, and the first valve body support frame flow path 161 and the second valve body support frame flow path 162 simply change the directions of the first inlet portion 120 and the second inlet portion 130 in the axial direction of the solenoid valve 100 in the radial direction, thereby simply connecting the valve and the tank. The valve body support frame 160 can be formed by joining two structures.

[0028] In one embodiment of the present invention, the dual tank oral irrigator may include a solenoid valve controller for controlling the energization and de-energization of the electromagnetic coil. The solenoid valve controller may include a manually adjustable switch button so that a user can manually control the energization and de-energization of the electromagnetic coil 160. Of course, the solenoid valve controller may be linked with an application program of a mobile terminal to switch the liquid source at a fixed time. For example, the oral irrigator may automatically switch to mouthwash two minutes after spraying clean water to clean the mouth.

[0029] 3, in one embodiment of the present invention, the pump assembly 400 includes a pressure chamber 410, one end of the pressure chamber 410 is connected to the water conduit 300, the liquid in the solenoid valve 100 is introduced into the pressure chamber 410, a first one-way valve 411 is installed between the water conduit 300 and the pressure chamber 410, the other end of the pressure chamber 410 is connected to the nozzle 500, the liquid in the pressure chamber 410 is sprayed out of the oral irrigator through the nozzle 500, and a second one-way valve 412 is installed between the pressure chamber 410 and the nozzle 500. The second one-way valve 412 can be a duckbill valve.

[0030] 2, in one embodiment of the present invention, the dual tank oral irrigator can include a battery 610 and a motor 620. The battery 610 is connected to the motor 620, and the output shaft of the motor 620 is connected to the pump assembly 400 to realize the pumping of the liquid.

[0031] In one embodiment of the present invention, referring to Fig. 3, the pump assembly 400 may include a gear shaft 420, an eccentric shaft sleeve 430 and a transmission rod 440. The eccentric shaft sleeve 430 is fixedly connected to the gear shaft 420, one end of the transmission rod 440 is fitted into the eccentric shaft sleeve 430, and the other end of the transmission rod is connected to a diaphragm 450, which forms one side of the pressure chamber 410. The working principle may be as follows: after the gear shaft 420 is driven by the motor 620, the eccentric shaft sleeve 430 rotates accordingly, and the transmission rod 440 and the eccentric shaft sleeve 430 form a cam mechanism, which causes the transmission rod 440 to perform a reciprocating motion. When the transmission rod 440 moves upward, the liquid in the pressure chamber is pumped out through the spout 500. As the transmission rod 440 moves downward, the liquid in the first tank 210 or the second tank 220 is pumped into the pressure chamber 410 .

[0032] Furthermore, the pump assembly 400 may include a transmission gear 460, and an output shaft of the motor 620 is connected to the transmission gear 460, and the transmission gear 460 meshes with a gear 421 of the gear shaft 420 to drive the rotation of the gear shaft 420. The transmission gear 460 and the gear 421 of the gear shaft 420 may be tapered gears, and their axes intersect with each other.

[0033] In one embodiment of the present invention, referring to Figures 1 and 2, a first liquid supply port 211 is provided on the side of the first tank 210, and a second liquid supply port 221 is provided on the side of the second tank 220, and the corresponding liquid can be replenished to each tank through each liquid supply port.

[0034] In one embodiment of the present invention, referring to FIG. 2, the first tank 210 is located below the second tank 220 .

[0035] The above description is a preferred embodiment of the present invention, but those skilled in the art may make some improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered to be within the scope of protection of the present invention. [Explanation of symbols]

[0036] 100 Solenoid valve 110 Exit section 120 1st entrance section 121 1st end face 130 2nd entrance section 131 Second end face 140 Valve body 141 Main Section 1411 Cylinder Surface 150 Valve core 151 Circular Surface 152 plane 153 Valve core main part 154 Valve core contact part 160 Valve body support frame 161 first valve body support frame passage 162 second valve body support frame passage 180 Spring 210 First Tank 211 1st fluid replenishment port 220 Second Tank 221 2nd fluid replenishment port 300 Water Pipe 400 Pump Assembly 410 Pressure Chamber 411 First one-way valve 412 Second one-way valve 420 Gear shaft 421 Gears 430 Eccentric shaft sleeve 440 Transmission rod 450 Diaphragm 460 Transmission Gear 500 spouts 510 Nozzle 610 battery 620 Motor

Claims

1. A dual tank oral irrigator comprising: a solenoid valve (100) including an outlet portion (110), a first inlet portion (120), a second inlet portion (130), a valve core (150) and an electromagnetic coil, the solenoid valve (100) being capable of controlling the movement of the valve core (150) to seal the first inlet portion (120) or the second inlet portion (130) by controlling the energization / cutoff of the electromagnetic coil; a first tank (210) to which the first inlet portion (120) is connected; a second tank (220) to which the second inlet portion (130) is connected; A water pipe (300) having one end connected to the outlet portion (110); and a pump assembly (400) connected to the other end of the water guide pipe (300) and to a nozzle (500) of the oral irrigator.

2. The solenoid valve (100) is A valve body (140) including a main portion (141), the first inlet portion (120) and the second inlet portion (130) extending outward from the main portion (141) along an axial direction, and an outlet portion (110) extending outward from the main portion (141) along a radial direction, wherein a boundary surface between the first inlet portion (120) and the main portion (141) is a first end surface (121), and a boundary surface between the second inlet portion (130) and the main portion (141) is a second end surface (121). the electromagnetic coil is disposed inside the main portion (141) or on the radially outer side thereof, the electromagnetic coil is located at one end of the main portion (141) close to the second end surface (131), and the electromagnetic coil attracts the valve core (150) when energized, and moves the valve core (150) along the axial direction toward the second end surface (131) and can abut against the second end surface (131); The dual-tank oral irrigator with switchable liquid sources as described in claim 1, characterized in that a spring (180) is connected to the radial outside of the valve core (150), the spring (180) further abuts or is connected to the second end face (131), and after the electromagnetic coil is cut off, the spring (180) moves the valve core (150) along the axial direction toward the first end face (121) and abuts against the first end face (121).

3. A dual-tank oral irrigator with switchable liquid sources as described in claim 2, characterized in that the circumferential surface of the valve core (150) includes an arcuate surface (151) and a flat surface (152), the circumferential inner wall surface of the main portion (141) includes a cylindrical surface (1411), and a liquid flow path is formed between the flat surface (152) of the valve core (150) and the cylindrical surface (1411) of the main portion (141).

4. The dual-tank oral irrigator with switchable liquid sources as described in claim 3, characterized in that the valve core (150) includes a valve core main portion (153) and a valve core abutment portion (154), the valve core main portion (153) has the arcuate surface (151) and the flat surface (152), the cylindrical valve core abutment portion (154) is formed at one end of the valve core (150) facing the first end face (121), and in the axial projection of the valve core (150), the valve core abutment portion (154) is located inside the valve core main portion (153).

5. A dual-tank oral irrigator capable of switching liquid sources as described in claim 2, characterized in that a valve body support frame (160) is installed on the outside of the valve body (140), the valve body support frame (160) includes a first valve body support frame passage (161) and a second valve body support frame passage (162), the second tank (220) is connected to the first inlet portion (120) via the first valve body support frame passage (161), and the first tank (210) is connected to the second inlet portion (130) via the second valve body support frame passage (162).

6. A dual-tank oral irrigator with switchable liquid sources as described in claim 5, characterized in that the first valve body support frame passage (161) extends directly into the second tank (220), and the second valve body support frame passage (162) extends into the first tank (210) via a curved pipe.

7. The pump assembly (400) includes a pressure chamber (410), one end of which is connected to the water guide pipe (300), and the liquid in the solenoid valve (100) is introduced into the pressure chamber (410), and a first one-way valve (411) is installed between the water guide pipe (300) and the pressure chamber (410); A dual-tank oral irrigator with switchable liquid sources as described in claim 1, characterized in that the other end of the pressure chamber (410) is connected to the nozzle (500), the liquid in the pressure chamber (410) is ejected from the oral irrigator through the nozzle (500), and a second one-way valve (412) is installed between the pressure chamber (410) and the nozzle (500).

8. The pump assembly (400) comprises: A gear shaft (420); an eccentric shaft sleeve (430) fixedly connected to the gear shaft (420); The dual tank oral irrigator capable of switching liquid sources as described in claim 7, characterized in that it includes a transmission rod (440) having one end fitted into the eccentric shaft sleeve (430) and the other end connected to a diaphragm (450), the diaphragm (450) being formed as one surface of the pressure chamber (410).

9. A dual-tank oral irrigator with switchable liquid sources as described in claim 8, characterized in that it includes a power source (610) and a motor (620), the power source (610) is connected to the motor (620), and the output shaft of the motor (620) drives the rotation of the gear shaft (420).

10. The dual tank oral irrigator with switchable liquid sources as described in claim 1, further comprising a nozzle (510), said nozzle (510) being connected to said spout (500).

Images