CN103815977B - A kind of portable dental scaler that dusts - Google Patents

Abstract

The invention provides a portable powder-spraying dental cleaner, which includes a housing, a power system, a compressed air distribution system, and an injection system. The upper part of the housing is a nozzle, and the middle and lower parts enclose a main cavity, a compression cylinder, and a control cylinder. , the injection system includes a nozzle locking system and a nozzle, the upper end of the nozzle is connected to the nozzle through the nozzle locking system, the nozzle has a tooth powder cartridge for storing tooth powder, the power system for providing power is installed in the main cavity, and the compressed air distribution system It is installed in the compression cylinder and the control cylinder to form high-pressure air to be sprayed out through the nozzle and injection system, and the tooth powder in the tooth powder cylinder is sprayed out with the high-pressure air to clean the teeth. The invention has a compact structure and is easy to carry, and the tooth powder is driven by compressed air to clean the teeth, and the tooth surface is more easily cleaned.

Description

A Portable Powder Spraying Tooth Cleaner

technical field

The invention relates to a medical device, in particular to a portable powder-spraying tooth cleaner.

Background technique

At present, there are three main types of tooth cleaning technology, one is ultrasonic tooth cleaning technology, which is to send out ultrasonic waves from a desktop ultrasonic generator, and push liquid to clean teeth through ultrasonic transducers, such as patent ZL91101403.9. The second is to use compressed air to drive tooth cleaning powder and water to rinse teeth at high speed, such as the Japanese NSK pneumatic tooth cleaning machine. The third is to use compressed air to drive water droplets at high speed to clean teeth, such as the patent 200980153654.9 applied by Philips of the Netherlands.

For the first two types of tooth cleaning techniques, the realization of the device structure is more complicated, the volume is larger, and continuous water supply or compressed air is required, which is only suitable for hospital or family applications, and is not suitable for carrying around. The third tooth cleaning technology is small in size and simple in structure, but it is more expensive in order to drive water droplets and clean teeth.

Contents of the invention

The object of the present invention is to solve the problems of the above-mentioned prior art, and to provide a convenient, portable and clean tooth cleaning method, to provide a portable device to generate compressed air to drive tooth cleaning powder to clean teeth.

The purpose of the present invention is achieved through the following technical solutions:

A portable powder-spraying dental cleaner, including a housing, a power system, a compressed air distribution system, and an injection system. The housing is a stepped housing, the upper part of the stepped housing is a nozzle, and the middle and lower parts enclose a main chamber , compression cylinder, control cylinder, nozzle; the main chamber is located at the bottom of the housing, the compression cylinder and control cylinder are located side by side in the middle of the housing, and the bottom of the compression cylinder and control cylinder is provided with an end cover , the end cover is provided with air intake holes respectively communicating with the compression cylinder, the control cylinder and the main chamber, and an air hole is provided between the compression cylinder and the control cylinder; the main chamber is provided with a power system, two shaft supports shoulder; the compression gas distribution system includes a drive shaft, a double cam, an adjustment sleeve, a roller, a compression piston rod, a compression piston, an adjustment piston rod, and an adjustment piston; the drive shaft is installed on two shaft support shoulders, and Connected with the motor, the double cam is installed on the drive shaft. The double cam includes a compression cam and a control cam. The compression cam and the control cam are respectively located on the axis of the compression cylinder and the control cylinder. One end of the compression piston rod and the adjustment piston rod are respectively The compression piston and the adjustment piston are connected, and the other end is respectively in contact with the compression cam and the control cam line through the roller; the profile curve of the compression cam is composed of tangentially connected air injection arc, intake arc, and compression arc; the air injection arc The arc section is an arc with a central angle of 120°, the intake arc section is an involute with a central angle of 120°, and the compression arc section is an involute with a central angle of 120°; The difference between the distance between the center and the tangent point of the intake arc section and the compression arc section ensures that the air compression ratio in the compressed air chamber is 2 to 3 times. The profile curve of the control cam is composed of a sealing arc section and an air injection arc section. The sealing arc section is a circular arc with a central angle of 240°; the jet arc section is composed of two straight lines connected tangentially to the inlet arc, middle arc, and outlet arc, and the central angle of the inlet arc, middle arc, and outlet arc is 120°. The radius of curvature of the middle arc is 2 to 3 times the radius of curvature of the roller, and the exit arc is 4 to 5 times the radius of curvature of the entrance arc; the difference between the radius of curvature of the sealing arc and the minimum distance from the axis center of the double cam to the sealing arc Ensure that the adjustment piston can expose the air hole when spraying; the compression piston rod and the adjustment piston rod pass through the end cover with a guide hole, the compression piston and the adjustment piston are respectively located in the compression cylinder and the control cylinder; the nozzle on the upper part of the housing and the control cylinder The cylinder barrel is connected; the injection system includes a nozzle locking system and a nozzle, the upper end of the nozzle is connected to the nozzle through the nozzle locking system, and the nozzle has a tooth powder cartridge for storing tooth powder.

Further, the power system includes a battery, a control switch and a micro drive motor connected in sequence.

Further, the control cam is connected to the drive shaft through a key, and the compression piston is provided with a one-way air valve; the bottoms of the compression piston and the adjustment piston are provided with springs.

Further, the axial ends of the double cam are respectively provided with adjustment sleeves assembled on the drive shaft.

Further, the nozzle locking system includes a lock nut, a sealing ring, and a taper sleeve; the nozzle joint of the nozzle is inserted into the spray head, the sealing ring is installed at the lower part of the taper hole of the spray head, and the taper sleeve is located between the nozzle and the spray head, locking The nut is assembled on the spray head.

Further, a narrow groove with a width of 1-2mm is formed on the periphery of the taper sleeve.

Further, the arc curve of the compression cam and the jet arc section of the control cam are in the same phase area.

Further, the nozzle is in a 95° angle structure, and the tooth powder cylinder is arranged on the bent part where the powder injection port of the nozzle is located, and the included angle between the centerline of the powder inlet hole at the bottom of the tooth powder bucket and the main airway is 135° °, the diameter of the powder inlet hole is 0.15~0.2mm. The nozzle has a 95° angle structure, and the tooth powder cylinder is arranged on the bent part where the powder injection port of the nozzle is located. The diameter of the powder hole is 0.15-0.2mm.

Further, a shoulder surrounding the circumference of the nozzle is provided near the powder injection port of the nozzle.

The present invention is compact in structure, easy to carry, compressed air drives the tooth powder, high-speed collision and grinding of tartar on the surface of the teeth, compared with the ordinary brushing method, it can clean the plaque on the surface of the teeth and between the teeth, improve the health of the gums and prevent dental caries, so that Professional oral care is simple, comfortable and convenient.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the portable powder spray dental cleaner of the present invention;

Fig. 2 is a schematic diagram of the structure of the taper sleeve in Fig. 1;

Fig. 3 is a schematic diagram of the relative phase position of the compression cam and the control cam;

Fig. 4 is a schematic diagram of the state of the compression cam and the compression piston during the compression stage;

Fig. 5 is a schematic diagram of the state of the compression cam and the compression piston in the air injection stage;

Fig. 6 is a schematic diagram of the state of the compression cam and the compression piston during the intake stage;

Fig. 7 is a schematic diagram of the state of the control cam and the adjustment piston during the sealing stage;

Fig. 8 is a schematic diagram of the state of the control cam and the adjustment piston in the air injection stage;

Fig. 9 is a schematic diagram of the states of the control cam and the adjustment piston in the sealing stage.

In the figure: 1-housing, 2-rechargeable battery, 3-motor, 4-shaft support shoulder, 5-compression cam, 6-screw, 7-end cover, 8-air intake hole, 9-compression cylinder, 10-compression piston rod, 11-compression piston, 12-through hole, 13-sealing valve, 14-nut, 15-spring, 16-air hole, 18-sealing ring, 19-taper sleeve, 20-nozzle connector, 21 -Nozzle, 22-Tooth Powder Canister, 23-Powder Canister Cover, 24-Powder Inlet Hole, 25-Shoulder, 26-Powder Injection Port, 27-Main Airway, 28-Lock Nut, 29-Spray Head, 30-Adjustment Piston, 31-adjusting piston rod, 32-control cylinder, 33-roller, 34-pin, 35-control cam, 36-key, 37-adjusting sleeve, 38-drive shaft, 39-main chamber 40-compressed gas Chamber 41 - Control air chamber.

Detailed ways

In order to illustrate the technical solution of the present invention more clearly, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is a schematic structural view of an embodiment of the portable powder spray dental cleaner of the present invention. As shown in FIG. 1 , the portable powder-spraying dental cleaner includes a housing 1, a power system, a compressed air distribution system, and an injection system. The casing 1 is a stepped casing, the upper part of the stepped casing is a spray head 29 , and the middle and lower parts enclose a main cavity 39 , a compression cylinder 9 and a control cylinder 32 . The main cavity 39 is located at the lower part of the housing 1, the compression cylinder 9 and the control cylinder 32 have a circular cross-sectional shape, and are located side by side in the middle of the housing 1, and the bottoms of the compression cylinder 9 and the control cylinder 32 are arranged There is an end cover 7, and the end cover 7 is provided with an air inlet 8 respectively communicating with the compression cylinder 9, the control cylinder 32 and the main cavity 1, and an air hole 16 is provided between the compression cylinder 9 and the control cylinder 32. The spray head 29 on the upper part of the housing 1 communicates with the control cylinder 32, and the upper end of the spray head 29 is connected with the injection system.

The main cavity 39 is provided with a power system for providing power for the compressed gas distribution system and two shaft support shoulders 4 for installing the compressed gas distribution system. The power system includes a battery 2 , a control switch and a micro-drive motor 3 electrically connected in sequence; the battery 2 , the control switch and the micro-drive motor 3 are respectively fixed on the shell 1 surrounding the main chamber 39 by screws 6 . Battery 2 can adopt the rechargeable battery that can recharge. The compressed gas distribution system includes a drive shaft 38, a double cam, a roller 33, a compression piston rod 10, a compression piston 11, an adjustment piston rod 31, and an adjustment piston 30; the drive shaft 38 is installed on two shaft support shoulders 4, And link to each other with motor 3, duplex cam comprises compression cam 5 and control cam 35, is installed on the drive shaft 38 by key 36. The compression cam 5 and the control cam 35 are used to transmit power to the compression piston rod 10 and the adjustment piston rod 31 respectively, and the compression cam 5 and the control cam 35 are located on the axes of the compression cylinder 9 and the control cylinder 32 respectively. One end of the compression piston rod 10 is connected with the compression piston 11 , and a roller 33 is installed at the other end, and the roller 33 is installed on the compression piston rod 10 through a pin 34 . One end of the adjustment piston rod 31 is connected with the adjustment piston 30, and the other end is equipped with a roller 33, and the roller 33 is installed on the adjustment piston rod 11 by a pin. The roller 33 on the compression piston rod 10 and the adjustment piston rod 11 is in line contact with the compression cam 5 and the control cam 35 respectively. The compression piston rod 10 and the adjustment piston rod 31 pass through the end cover 7 with guide holes, and the compression piston 11 and the adjustment piston 30 are located in the compression cylinder 9 and the control cylinder 32 respectively.

As shown in Figure 3, the profile curve of the compression cam 5 consists of the jet arc section intake arc compression arc composition; jet arc It is an arc with a central angle of 120°, and the inlet arc section is an involute with a central angle of 120°, and the arc segment is compressed is the involute with a central angle of 120°, and the jet arc intake arc compression arc Tangential connection. jet arc The difference between the radius of curvature of the double cam axis and the tangent point between the intake arc and the compression arc should ensure that the air compression ratio in the compressed air chamber 40 is 2 to 3 times. The compression ratio refers to the The ratio of air volume to compressed air volume.

The contour curve of the control cam 35 is formed by the sealing arc section jet arc composition. sealing arc An arc with a central angle of 240°. jet arc from two straight lines and Constituted with three arcs, the three arcs respectively include the entrance arc middle arc exit arc Composition, the central angles of the three arcs are all 120°, respectively connected tangentially, the middle arc The radius of curvature is 2 to 3 times of the radius of curvature of the roller 33, and the exit arc The radius of curvature is the entrance arc 4 to 5 times the radius of curvature. sealing arc The radius of curvature and the middle arc from the center of gyration to the sealing arc The minimum distance difference should ensure that the stroke of the piston 30 can be adjusted to expose the air hole 16 during air injection.

The arc curve of the compression cam 5 and the jet arc section of the control cam 35 are in the same phase zone.

In order to prevent the compression cam 5 and the control cam 35 from deviating during the working process, the two axial ends of the duplex cam are respectively provided with adjustment sleeves 37 assembled on the drive shaft, and the two-way position is controlled by two adjustment sleeves 37. The axial position of the cam ensures that the compression cam 5 and the control cam 35 are located on the axes of the compression cylinder 9 and the control cylinder 32 respectively. Both the compression piston 11 and the bottom of the control piston 30 are provided with a spring 15 to ensure that the two rollers 33 are always in line contact with the compression cam 5 and the control cam 35 respectively.

As shown in Fig. 1 and Fig. 2, the injection system includes a nozzle locking system and a nozzle 21; the nozzle locking system includes a lock nut 28, a sealing ring 18, and a cone sleeve 19; the nozzle joint 20 of the nozzle 21 is inserted into In the spray head 29 , the sealing ring 18 is installed at the lower part of the taper hole of the spray head 29 , the taper sleeve 19 is located between the nozzle 21 and the spray head 29 , and the locking nut 28 is assembled on the spray head 29 . Then tighten the lock nut 28, and the lock nut 28 pushes the taper sleeve 19 to move toward the bottom of the nozzle 29. Squeeze to the direction, the radius of the inner hole of the taper sleeve is reduced, and the nozzle joint 20 is tightly clamped to ensure that the nozzle 21 will not fall when spraying. At the same time, the sealing ring 18 plays a sealing role to ensure that the compressed air does not leak. The nozzle 21 is a bent structure at an angle of 95°, and a tooth powder cartridge 22 for storing tooth powder is arranged on the bent part where the powder injection port 26 of the nozzle 21 is located. The tooth powder cartridge 22 is an upper opening, and has a Powder cylinder cover 23; Powder inlet hole 24 communicates with the main air passage 27 of nozzle 21 at the bottom of tooth powder bucket 22; ~0.2mm. The tooth powder enters the air delivery hole 27 under the action of gravity, and the compressed air drives the tooth powder to enter the main air passage 27, and is sprayed onto the teeth through the powder injection port 26. A shoulder 25 surrounding the nozzle 21 is provided at the powder injection port 26 close to the nozzle 21 to block the bounced dentifrice.

During the working process, the compression piston rod 10 and the adjustment piston rod 31 reciprocate up and down in the guide hole. The air intake hole 8 provided on the end cover communicates with the compression cylinder 9, the control cylinder 32 and the main chamber 1 respectively, so that when the compression piston 11 and the adjustment piston 30 reciprocate up and down, the air enters the compression cylinder 9, the control cylinder 32 , to reduce drag. A one-way air valve is arranged on the compression piston 11, and other similar structures can also be used. For example, a through hole 12 is opened on the compression piston 11, and a leather valve 13 is installed on the top of the through hole 12. When the compression piston 11 moves down, the leather valve The raft 13 is opened, the compressed air chamber 40 takes in air, and when the compression piston 11 moves up, the leather valve 13 seals the through hole 12, and the air in the compressed air chamber 40 is compressed.

Specifically, the working process of the portable powder spray dental cleaner is divided into three stages, compression stage, air spray stage, and air intake stage.

Compression stage:

Turn on the control switch, turn on the power supply, the micro drive motor 3 rotates, and drives the compression cam 5 and the control cam 35 to rotate. The compression cam 5 and the control cam 35 convert the rotary motion into the reciprocating motion of compressing the piston rod 10 and adjusting the piston rod 31 through the roller 33 . As shown in FIG. 4 , when point A on the compression cam 5 is in contact with the roller 33 on the compression piston rod 10 , the compression piston 11 is at the bottom dead center, and the volume of the compressed gas chamber 40 is the largest. The compression cam 5 rotates, and the arc section involute is compressed The radius of curvature gradually increases, and the roller 33 pushes the piston 11 to move up, compressing the air until point B at the maximum curvature radius, the air compression ratio is the largest, the air volume is reduced by 2.5 to 3 times, and the air pressure increases to between 0.2 and 0.3Mpa, as shown in the figure 7. Because there is a fixed phase matching relationship between the control cam 35 and the compression cam 5, during this process, the compression cam 5 turns from point A to point D, and the control cam 35 turns from point H to point F. The radius of curvature is a constant value, and the adjustment piston 30 is at the top dead center of the control air chamber 41 . The adjustment piston 30 seals the air hole 16 . The air is thus compressed by the compression piston 11 inside the compression cylinder 9 .

Jet stage:

As shown in Figure 5, the drive shaft 38 continues to drive the compression cam 5 and the control cam 35 to rotate, and the track of the contact point between the roller 33 on the compression piston rod 10 and the compression cam 5 is from B→C→D, the air injection arc section The radius of curvature is a constant value, and the compression piston 11 remains motionless at the top dead center position of the compression cylinder 9 . And adjust the track of the roller 33 on the piston rod 31 and the contact point of the control cam 35 to be F→E→G, as shown in Figure 8, the radius of curvature at points F and G is the largest, and the radius of curvature at point E is the smallest, thereby adjusting the piston 30 Under the action of the spring 15, it quickly moves down to the bottom dead center of the control air chamber 41, the air hole 16 communicates with the control air chamber 41 and the compressed air chamber 40, and the compressed air is injected from the compressed air chamber 40 to the control air chamber 41 through the nozzle 29 into the injection system. After the air injection is finished, adjust the track of the roller 33 on the piston rod 31 and the contact point of the control cam 35 to be from E to G point, adjust the piston 30 from the bottom dead center to the top dead center of the control air chamber 41 quickly, and turn the air hole 16 seals.

Intake phase:

As shown in Figure 6, the compression cam 5 rotates, and the track of the contact point between the roller 33 on the compression piston rod 10 and the compression cam 5 is from D→A, and the intake arc is involute The radius of curvature decreases gradually, and the compression piston 11 moves downward from the top dead center of the compression chamber 40 . At this time, the air hole 16 has been sealed, the air pressure of the compressed air chamber 40 decreases, and the air passes through the air inlet 8, the compression cylinder 9 and the through hole 12, pushes the skin valve 13 under the action of pressure, and enters the compressed air chamber 40 . When the roller 33 on the compression piston rod 10 and the contact point of the compression cam 5 reach point A, the compression piston 11 reaches the bottom dead center of the compressed air chamber 40. The compressed air chamber 40 has the largest volume and is filled with air equal to the atmospheric pressure. As shown in Figure 9, in this process, the control cam 35 rotates, and the trajectory of the contact point between the roller 33 on the piston rod 31 and the control cam 35 is adjusted to be from G→H, arc with The radii of curvature are equal, and the adjustment piston 30 is always kept at the top dead center of the control air chamber 41 to seal the air hole 16 .

This cycle goes on and on, so that the compressed air continuously enters the injection system, sprays tooth powder, and cleans the teeth.

This embodiment is a preferred implementation of the present invention, but the invention is not limited to the above-mentioned implementation, without departing from the technical solution of the present invention, any obvious improvements and replacements that those skilled in the art can make Or variants all belong to the protection scope of the present invention.

Claims (8)

1. A portable powder-spraying dental cleaner, comprising a housing (1), a power system, a compressed air distribution system, and an injection system, characterized in that, the housing (1) is a stepped housing, and the stepped housing The upper part is the spray nozzle (29), and the middle and lower parts enclose the main chamber (39), the compression cylinder (9), and the control cylinder (32); the main chamber (39) is located at the bottom of the housing (1), so The compression cylinder (9) and the control cylinder (32) are located in the middle of the housing (1) side by side, and the bottoms of the compression cylinder (9) and the control cylinder (32) are provided with an end cover (7), and the end cover ( 7) There are air inlets (8) connected to the compression cylinder (9), the control cylinder (32) and the main chamber (39) respectively, the compression cylinder (9) and the control cylinder (32) Air holes (16) are arranged between them; a power system and two shaft support shoulders (4) are arranged in the main cavity (39), and the power system includes batteries (2), control switches and micro drive motors (3) connected in sequence ); the compression gas distribution system includes a drive shaft (38), a double cam, a roller (33), a compression piston rod (10), a compression piston (11), an adjustment piston rod (31), and an adjustment piston (30); The drive shaft (38) is installed on the two shaft support shoulders (4) and is connected with the motor (3). The double cam is installed on the drive shaft (38). The double cam includes a compression cam (5) and a control cam (35), the compression cam (5) and the control cam (35) are located on the axes of the compression cylinder (9) and the control cylinder (32) respectively, and one end of the compression piston rod (10) and the adjustment piston rod (31) are respectively The compression piston (11) and the adjustment piston (30) are connected, and the other end is in line contact with the compression cam (5) and the control cam (35) through the roller (33) respectively; the profile curve of the compression cam (5) is formed by tangent The connected jet arc, intake arc and compression arc are composed; the jet arc is a circular arc with a central angle of 120°, the intake arc is an involute with a central angle of 120°, and the compression arc is a circular arc with a central angle of 120 ° involute; the difference between the radius of curvature of the jet arc and the axis of the double cam to the distance between the intake arc and the tangent point of the compression arc ensures that the air compression ratio in the compressed air chamber (40) is 2 to 3 times, the contour curve of the control cam (35) is composed of a sealing arc and an air jet arc, the sealing arc is a circular arc with a central angle of 240°; the air jet arc consists of two straight lines, an inlet arc, and an intermediate circle The arc and the exit arc are tangentially connected, the central angle of the entrance arc, the middle arc and the exit arc is 120°, the curvature radius of the middle arc is 2 to 3 times of the curvature radius of the roller (33), and the exit arc is the curvature radius of the entrance arc 4 to 5 times of that; the difference between the radius of curvature of the sealing arc and the minimum distance from the shaft center of the duplex cam to the sealing arc ensures that the air hole (16) can be exposed by adjusting the piston (30) during air injection; compressing the piston rod (10) 1. There is a guide hole on the adjustment piston rod (31) passing through the end cover (7), and the compression piston (11) and the adjustment piston (30) are respectively located in the compression cylinder (9) and the control cylinder (32); (1) The upper nozzle (29 ) is communicated with the control cylinder (32); the injection system includes a nozzle locking system and a nozzle (21), and the upper end of the nozzle (29) is connected to the nozzle (21) through the nozzle locking system, and the nozzle (21) has A dentifrice cartridge (22) for depositing dentifrice. 2. The tooth cleaner according to claim 1, characterized in that the compression cam (5), the control cam (35) and the drive shaft (38) are connected by a key (36), and the compression piston (11) is provided with a There is a one-way air valve; the bottoms of the compression piston (11) and the adjustment piston (30) are all provided with springs (15). 3. The dental cleaner with powder spraying according to claim 1, characterized in that, the axial ends of the double cam are respectively provided with adjustment sleeves (37) assembled on the drive shaft. 4. The powder spraying dental cleaner according to claim 1, characterized in that, the nozzle locking system comprises a lock nut (28), a sealing ring (18), a taper sleeve (19); the nozzle (21) The nozzle joint (20) is inserted into the nozzle (29), the sealing ring (18) is installed at the lower part of the taper hole of the nozzle (29), the taper sleeve (19) is located between the nozzle (21) and the nozzle (29), and the lock nut (28) is assembled on the shower head (29). 5. The powder-spraying dental cleaner according to claim 4, characterized in that a narrow groove with a width of 1-2 mm is formed in the circumferential direction of the taper sleeve (19). 6. The dental cleaner according to claim 1, characterized in that the arc curve of the compression cam (5) and the jet arc section of the control cam (35) are in the same phase zone. 7. The powder spraying dental cleaner according to claim 1, characterized in that the nozzle (21) is a 95° angled structure, and the tooth powder cartridge (22) is arranged at the powder spraying port (26) of the nozzle (21). ) on the bent part where the centerline of the powder inlet hole (24) at the bottom of the dentifrice cartridge (22) and the main air passage are at an angle of 135°, and the diameter of the powder inlet hole (24) is 0.15 to 0.2mm. 8. The dental cleaner according to claim 7, characterized in that a shoulder (25) surrounding the nozzle (21) is provided at the powder injection port (26) close to the nozzle (21).