CN216908193U - Water dental floss - Google Patents

Abstract

The patent discloses a water dental floss, which comprises a shell (40) capable of being held by hands, wherein a spherical pump (100), a motor (30), a power supply and control panel assembly (80) are fixedly arranged in the shell (40), one end of the shell (40) is detachably connected with a nozzle (50), and the other end of the shell is detachably connected with a water tank (10); a liquid outlet (12) of the spherical pump (100) is communicated with the nozzle (50), and a liquid inlet (11) of the spherical pump (100) is communicated with the water tank (10); the motor (30) inputs power for the spherical pump (100), a key (90) for controlling water outlet is arranged on the shell (40), and the key (90) and the control panel are electrically connected with the motor (30) in sequence; the advantages are that: small volume, light weight, high-frequency pulse realization and good flushing effect.

Description

Water dental floss

Technical Field

The patent relates to a tooth cleaning device in a mouth cavity, in particular to a water dental floss.

Background

The water dental floss is an oral hygiene cleaning appliance which uses water flow with pressure as power to remove residual food between teeth or between teeth. The water dental floss can protect gum, reduce bacteria reproduction in oral cavity, and prevent dental and oral diseases. The existing water dental floss comprises a water dental floss with a pump and a water dental floss without the pump, wherein the water dental floss without the pump is used for directly leading tap water into an oral cavity through a nozzle to clean the interdental space, has a simple structure, but is low in pressure and incomplete in cleaning, can be used only in a place with the tap water, and is inconvenient to use. The water dental floss with the pump has the function of the pump, so the pressure is high and the cleaning effect is good; meanwhile, the water-like dental floss generally has a water storage function and is convenient to use; therefore, the water dental floss with the pump is the development direction of the high-quality water dental floss.

The existing dental floss generally uses a plunger pump, a gear pump or a peristaltic pump, the volume of the pump occupies the main space of the dental floss, and the pump has more parts and large volume, so that the dental floss has large volume and is inconvenient to carry; meanwhile, the high pressure of the pump has good cleaning effect, but the oral cavity and the teeth have uncomfortable feeling, and the low pressure of the pump has poor cleaning effect, so that the user experience feeling is poor.

The spherical pump technology is a new-principle variable-capacity power mechanism invented in recent years, and has the advantages of small pump parts, reliable sealing, no water inlet valve and water outlet valve, convenient miniaturization design, high-speed operation realization and low noise, and various applications of the spherical pump are continuously researched and developed.

Disclosure of Invention

The patent aims to design a water dental floss, which is designed by utilizing the latest spherical pump technology and carrying out miniaturization design and has the advantages of simple structure, small volume and low cost.

The technical scheme of this patent is: a water dental floss, which is characterized in that: the portable water heater comprises a handheld shell, wherein a spherical pump, a motor, a power supply and a control panel assembly are fixedly arranged in the shell, one end of the shell is detachably connected with a nozzle, and the other end of the shell is detachably connected with a water tank; the liquid outlet of the spherical pump is communicated with the nozzle, and the liquid inlet of the spherical pump is communicated with the water tank; the power supply supplies power to the motor, the control panel is used for controlling the motor to run, the motor is a spherical pump to input power, a button for controlling water outlet is arranged on the shell, and the button and the control panel are electrically connected with the motor in sequence;

the spherical pump is a micro spherical pump, and the diameter of a spherical inner cavity of the micro spherical pump is not more than 8 mm;

the rotary table shaft of the spherical pump is connected with the output shaft of the motor, and the shaft head at the end part of the output shaft of the motor is directly inserted into the I-shaped key groove at the end part of the rotary table shaft of the spherical pump to drive the rotary table shaft to rotate to transmit power;

the quick-plug connector is fixedly connected to the end part of the shell, the nozzle is connected to one end of the quick-plug connector in a plug-in mode, the other end of the quick-plug connector is communicated with the water outlet end of the hard water pipe arranged in the shell, and the water inlet end of the hard water pipe is communicated with the liquid outlet of the spherical pump;

the liquid outlet of the spherical pump is communicated with the nozzle through a hard water pipe, and the liquid inlet of the spherical pump is communicated with the water tank through a hose;

and a sealing block is arranged at the joint of the shell and the water tank.

The advantage of this patent is:

1) the water dental floss based on the spherical pump is small in size and easy to design in a miniature mode:

the spherical pump has no liquid inlet and outlet valves, realizes liquid suction and liquid discharge by rotating the rotor to a certain position, has few parts and simple structure, so the spherical pump has small volume and light weight, simultaneously, the sealing between the rotor and the stator is surface sealing, the sealing effect is good, high pressure can be realized, and the reliable sealing design can be realized when the pump is small in volume, so the spherical pump is convenient to carry out miniaturization design and is suitable for the water dental floss with small volume and weight requirements; after the miniature spherical pump is used, the water dental floss has small volume, light weight and high pressure, and is easier to be miniaturized structurally.

2) The water dental floss based on the spherical pump has high pulse, good cleaning effect, comfortable oral cavity and good experience feeling:

according to research and experiments, water jets with high pulses have been shown to have a very good effect on the removal of residual food between teeth. For the existing plunger pump, high pulse can be realized by increasing the rotating speed, but because the plunger pump is provided with a water inlet valve and a water outlet valve, the response speed of opening and closing a water valve is limited, the rotating speed increasing space is limited, and the highest rotating speed is 3000 r/min generally at present. The two working cavities respectively perform complete liquid suction and liquid discharge once when the spindle of the spherical pump rotates for one circle, the spherical pump is of a spindle rotating structure and can realize high-speed operation, the rotating speed can reach more than 10000 revolutions per minute, and the liquid suction and liquid discharge can generate certain pulse, so that the spherical pump can generate pulse with high frequency when the spherical pump operates at high speed, and the water dental floss of the spherical dental floss pump has better washing effect compared with the water dental floss using other pumps; because the pulse vibration is provided to enhance the flushing effect, the pressure can be properly reduced, the mouth cavity and the gum of a user do not feel uncomfortable in use, and the user experience is improved.

Drawings

FIG. 1: the structure of the water dental floss is shown schematically;

FIG. 2: FIG. 1 is a cross-sectional view taken along line D-D;

FIG. 3: the structure schematic diagram of the spherical pump;

FIG. 4: FIG. 3 is a sectional view taken along line A-A;

FIG. 5 is a schematic view of: a front view of the cylinder cover;

FIG. 6: FIG. 5 is a sectional view taken along line B-B;

FIG. 7: a top view of the cylinder head;

FIG. 8: a schematic structural diagram of the chute rotating sleeve;

FIG. 9: FIG. 8 is a cross-sectional view taken along line C-C;

FIG. 10: a front view of the cylinder body;

FIG. 11: a top view of the cylinder;

FIG. 12: a schematic perspective structure of the piston;

FIG. 13: the three-dimensional structure of the turntable is schematically shown.

In the figure: 1-a cylinder cover; 2-sliding chute rotating sleeve; 3-a piston; 4-a turntable; 5-cylinder body; 6-bearing sleeve; 7-a sealing ring; 8-a resilient washer; 9-a screw; 10-a water tank; 20-sealing block; 30-a motor; 40-a housing; 50-a nozzle; 60-hard water pipe; 70-a support; 80-power and control panel assembly; 90-push button; 100-ball pump;

11-a liquid inlet; 12-a liquid discharge port; 13-a liquid inlet tank; 14-a liquid discharge tank; 15-rotating trepanning; 21-a chute; 22-fabrication holes; 23-a process tank; 31-a slipper; 32-piston spherical surface; 33-piston pin boss; 41-turntable shaft; 42-turntable sphere; 43-turntable pin boss; 51-a turntable shaft hole;

101-a first working chamber; 102-second working chamber.

Detailed Description

The following detailed description of the present patent refers to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, the dental floss of the present invention includes a handheld housing 40, a spherical pump 100, a motor 30, a power supply and control board assembly 80 are fixedly disposed in the housing 40, a bracket 70 is fixed in the housing 40, the spherical pump 100, the motor 30, the power supply and control board assembly 80 are fixedly mounted on the bracket 70, one end of the housing 40 is movably connected with a nozzle 50 by a quick plug, and the quick plug can be inserted and used, which is convenient and fast. The other end of the shell 40 is movably connected with a water tank 10; the water tank 10 is used for storing water for cleaning, and is convenient to carry and use at any time. A connecting structure is arranged at the connecting position of the mouth of the water tank 10 and the end part of the shell 40, and the connecting mode can be a plug-in type or a threaded connection; the liquid discharge port 12 of the spherical pump 100 is communicated with the nozzle 5 through a hard water pipe 60 arranged in the shell 40, a quick connector is arranged between the hard water pipe 60 and the nozzle 50, the quick connector is fixedly connected to the end part of the shell 40, the nozzle 50 is connected to one end of the quick connector in a plugging mode, the other end of the quick connector is communicated with the water outlet end of the hard water pipe 60 arranged in the shell 40, and the water inlet end of the hard water pipe 60 is communicated with the liquid discharge port of the spherical pump 100 and the quick connector is fixed to the end part of the shell 40; the lower end of the nozzle 50 is inserted into the quick connector in a quick insertion manner and is communicated with the hard water pipe 60 through the quick connector; the hard water pipe 60 is a hard water pipe with better rigidity; a liquid inlet 11 of the spherical pump 100 is communicated with the water tank 10 to pump water from the water tank 10; the joint of the shell 40 and the water tank 10 is provided with a sealing block 20, the sealing block 20 is arranged at the end part of the shell 40, one end of a hose is connected with the liquid inlet 11 of the spherical pump 40, the other end of the hose tightly penetrates through the sealing block 20 and then is communicated with liquid in the water tank 10, and a sealing structure is arranged between the hose and the sealing block 20.

The power input shaft of the spherical pump 100 is rigidly connected with the output shaft of the motor 30 through a connecting rod, and in order to save space, the linear shaft head at the end part of the output shaft of the motor 30 is directly inserted into the linear key groove at the end part of the turntable shaft 41 of the spherical pump 100 to transmit power, so as to directly drive the rotor of the spherical pump 100 to rotate. The power and control panel assembly 80 includes a power supply for supplying power to the motor 30 and a control panel for controlling the operation of the motor 30; a button 90 for controlling water outlet is arranged on the shell 40, and the button 90, the power supply and control panel of the control panel assembly 80 are electrically connected with the motor 30 in sequence.

As shown in fig. 3 and 4, the spherical pump 100 of the present patent adopts a spherical pump newly invented in recent years, the spherical pump includes a cylinder cover 1, a chute rotating sleeve 2, a piston 3, a rotating disc 4 and a cylinder body 5, the cylinder body 5 and the cylinder cover 1 have a hemispherical inner cavity, and the cylinder body 5 and the cylinder cover 1 are fixedly connected to form the spherical inner cavity; generally, the spherical pump with the diameter of the spherical inner cavity of the spherical pump being not more than 15 mm is commonly called a micro spherical pump; in view of the size requirements of the water dental floss for the ball pump, the diameter of the ball cavity of the micro ball pump for the water dental floss is not more than 8 mm. In this embodiment, the diameter of the spherical cavity of the micro-spherical pump is 5 mm.

As shown in fig. 5-7, a semi-spherical inner cavity of the cylinder cover 1 is provided with a sleeve hole 15, a liquid inlet tank 13 and a liquid discharge tank 14, a side wall of the cylinder cover 1 is provided with a liquid inlet 11 and a liquid discharge port 12, the liquid inlet 11 is communicated with the liquid inlet tank 13, and the liquid discharge port 12 is communicated with the liquid discharge tank 14; the rotating sleeve hole 15 is arranged in the center of the spherical surface of the hemispherical inner cavity, the axis of the rotating sleeve hole 15 is perpendicular to the end surface of the hemispherical inner cavity of the cylinder cover, and a protruded positioning ring is arranged on the end surface and used for being matched and positioned when being connected with the end surface of the cylinder body 5.

As shown in fig. 10 and 11, a turntable shaft hole 51 communicating with the outside of the cylinder is provided on the spherical surface of the hemispherical inner cavity of the cylinder body 5, an included angle between an axis of the turntable shaft hole 51 and an end surface of the hemispherical inner cavity of the cylinder body is α, a is in a range of 7.5 to 17.5 degrees, and α is preferably 15 degrees in this embodiment. The cylinder body 5 and the cylinder cover 1 are fixedly connected through a screw 9, and the screw 9 is provided with an elastic washer 8 for preventing looseness. Positioning structures are arranged on the end surfaces of the semi-spherical inner cavities of the cylinder body 5 and the cylinder cover 1, a protruding positioning ring is arranged on the end surface of the cylinder cover 1, and a positioning groove matched with the positioning ring is arranged on the end surface of the cylinder body 5; the cylinder body 5 and the cylinder cover 1 can also be fixedly connected in an ultrasonic welding mode after being positioned by the positioning structure.

As shown in fig. 8 and 9, the chute sleeve 2 is cylindrical, the chute 21 is provided on the lower end surface of the cylinder, the width of the chute 21 is adapted to the size of the distance between the two parallel surfaces of the shoe 31, the length of the chute 21 is only required to satisfy the length of the shoe 31 sliding back and forth in the chute 21 every time the turntable shaft 41 rotates one revolution, and the length of the chute 21 may be through along the lower end surface of the chute sleeve 2 or may be not through but only to satisfy the length of the shoe 31 sliding back and forth. The outer circle diameter of the chute rotating sleeve 2 is matched with the diameter of a rotating sleeve hole 15 on the cylinder cover 1, the chute rotating sleeve 2 is arranged in the rotating sleeve hole 15, the lower end face of the chute rotating sleeve 2 does not protrude out of the spherical inner surface, the axis of the chute rotating sleeve 2 coincides with the axis of the rotating sleeve hole 15, the chute rotating sleeve 2 can freely rotate around the axis in the rotating sleeve hole 15, in order to install and reduce friction between the upper end face of the chute rotating sleeve 2 and the bottom face of the rotating sleeve hole 15, a process groove 23 is arranged on the upper end face of the chute rotating sleeve 2, a through process hole 22 is formed between the process groove 23 and the bottom of the chute 21, and assembly is facilitated.

A bearing sleeve 6 and a sealing ring 7 are arranged on the matching surface of the turntable shaft 41 of the turntable 4 and the turntable shaft hole 51 on the cylinder body 5; a sealing ring 7 is arranged between the upper end journal of the turntable shaft 41 and the upper inner cylindrical hole of the turntable shaft hole 51. A straight key groove is arranged on the lower end face of the turntable shaft 41 and is used for being connected with an output shaft of the motor 30 to transmit power.

As shown in fig. 4 and 12, the piston 3 and the turntable 4 are hinged to form a rotor through a cylindrical hinge, the piston 3 has a spherical surface, two side surfaces forming a certain angle and piston pin bosses at the lower parts of the two side surfaces, a sliding shoe 31 is arranged in the center of the spherical surface of the piston in a protruding manner, a piston pin boss 33 is arranged below the spherical surface 32 of the piston, the piston pin boss 33 has a semi-cylindrical structure protruding from the two side surfaces, and the two ends of the semi-cylindrical structure are spherical surfaces; the slipper 31 has two parallel faces as working faces, which are symmetrically arranged on both sides of the semi-cylindrical axis of the piston pin boss 33; the axis of the semi-cylinder of the piston pin seat 33 is parallel to two parallel surfaces of the sliding shoe 31;

as shown in fig. 4 and 13, the upper end of the turntable 4 is a plane, a semi-cylindrical hole is recessed inwards on the plane of the upper end to form a turntable pin seat 43, a turntable shaft 41 protrudes from the center of the lower part of the turntable 4, and a turntable spherical surface 42 is arranged between the upper end surface of the turntable 4 and the lower turntable shaft 41; the turntable pin seat 43 is matched with the piston pin seat 33, and the semi-cylinder of the piston pin seat 33 is inserted into the semi-cylinder hole of the turntable pin seat 43 to form a C-shaped cylindrical hinge structure;

the axis of a rotating sleeve hole 15 on the inner spherical surface of the cylinder cover 1 and the axis of a rotating disc shaft hole 51 on the cylinder body 5 both pass through the spherical center of the spherical inner cavity, and the included angle between the axis of the rotating sleeve hole 15 and the axis of the rotating disc shaft hole 51 is alpha; the piston and the turntable are connected through the cylindrical surface hinge and then are arranged in the spherical inner cavity, the spherical surface 32 of the piston, the spherical surface 42 of the turntable and the spherical inner cavity have the same spherical center and form sealing movable fit, and the matching surfaces of the cylindrical surface hinge form sealing movable fit; after assembly, the axis of the sliding groove rotating sleeve 2 and the axis of the turntable shaft 41 both pass through the spherical center of the spherical inner cavity and form the same included angle alpha, the included angle is 7.5 to 17.5 degrees, and the included angle is 15 degrees in the embodiment; the cylinder body 5 and the cylinder cover 1 are made of engineering plastics; the surface materials of parts of the piston 3 and the rotary disc 4 which are respectively contacted with the spherical inner cavity formed by the cylinder body 5 and the cylinder cover 1 are metal or PEEK, and the metal can be stainless steel or alloy steel, so that the friction resistance is reduced; the sliding shoe 31 at the upper end of the piston 3 is placed in the sliding groove 21 at the lower end face of the sliding groove rotary sleeve 2, two parallel faces of the sliding shoe 31 are attached to two side faces of the sliding groove 21 to form sliding fit, and the sliding shoe 31 can slide in the sliding groove 21 in a reciprocating mode to form a sliding groove swinging mechanism; the turntable shaft 41 is driven to rotate, the piston 3 and the turntable 4 relatively swing around a cylindrical hinge, the sliding shoe 31 reciprocally slides in the sliding groove 21, and a first working chamber 101 and a second working chamber 102 with alternately changed volumes are formed among the upper end surface of the turntable 4, two side surfaces of the piston 3 and the spherical inner cavity; for every 360 degrees (one revolution) of the piston shaft, the first working chamber 101 and the second working chamber 102 each perform suction and discharge once; the liquid sucked in through the liquid inlet 11 respectively enters the two working chambers through the liquid inlet groove 13, is pressurized and then is discharged through the liquid discharge groove 14 and the liquid discharge port 12, namely, the spherical pump performs liquid suction and liquid discharge twice, the liquid suction twice is separated by 180 degrees, and the liquid inlet twice is also separated by 180 degrees.

In this embodiment, the overall dimension of the spherical pump can be as follows: the diameter is 8-10 mm, the length is 10-15 mm, the total weight reaches 15 g-20 g, and the spherical pump is in a miniaturized structure.

Claims (7)

1. A water dental floss, which is characterized in that: the portable water heater comprises a handheld shell (40), wherein a spherical pump (100), a motor (30), a power supply and control panel assembly (80) are fixedly arranged in the shell (40), one end of the shell (40) is detachably connected with a nozzle (50), and the other end of the shell is detachably connected with a water tank (10); a liquid outlet (12) of the spherical pump (100) is communicated with the nozzle (50), and a liquid inlet (11) of the spherical pump (100) is communicated with the water tank (10); the power supply supplies power to the motor (30), the control panel is used for controlling the motor (30) to operate, the motor (30) inputs power for the spherical pump (100), a key (90) for controlling water outlet is arranged on the shell (40), and the key (90) and the control panel are electrically connected with the motor (30) in sequence.

2. The water dental floss of claim 1, wherein: the spherical pump (100) is a micro spherical pump, and the diameter of a spherical inner cavity of the micro spherical pump (100) is 5 mm.

3. The water dental floss of claim 1, wherein: the spherical pump (100) is a micro spherical pump, and the diameter of a spherical inner cavity of the spherical pump (100) is not more than 8 mm.

4. The water dental floss of claim 1, wherein: the rotary table shaft (41) of the spherical pump (100) is connected with the output shaft of the motor (30), and the shaft head at the end part of the output shaft of the motor (30) is inserted into the straight key groove at the end part of the rotary table shaft (41) of the spherical pump (100) to drive the rotary table shaft (41) to rotate to transmit power.

5. The water dental floss of claim 1, wherein: the quick-connection plug is fixedly connected to the end portion of the shell (40), the nozzle (50) is connected to one end of the quick-connection plug in a plug-in connection mode, the other end of the quick-connection plug is communicated with a water outlet end of a hard water pipe (60) arranged in the shell (40), and a water inlet end of the hard water pipe (60) is communicated with a liquid discharge port of the spherical pump (100).

6. The water dental floss of claim 1, wherein: a liquid outlet (12) of the spherical pump (100) is communicated with the nozzle (50) sequentially through a hard water pipe (60) and a quick connector, and a liquid inlet (11) of the spherical pump (100) is communicated with the water tank (10) through a hose.

7. The water dental floss of claim 1, wherein: a sealing block (20) is arranged at the joint of the shell (40) and the water tank (10).

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