KR101475948B1 - Water pumping device for the oral irrigator - Google Patents

Abstract

The present invention provides a dual structure of a pumping structure for discharging a cleaning liquid so that two injections are performed when the gear rotates once to improve the discharge intensity and smoothly connect the pulsating flow without intermittent jetting to reduce pain in the oral cavity, To a cleaning liquid pumping device for an oral cleanser which can minimize the noise of the motor and weaken vibration transmitted to the hose.
According to the present invention, there is provided a driving apparatus comprising: a body for mounting and supporting a driving component; A driving motor installed at an upper portion of one side of the main body to provide a rotational force; An eccentric driving means provided at one side of the main body to generate a eccentricity while being provided on a shaft of the driving motor to provide a reduction ratio; Double pumping means provided respectively at the upper and lower portions of the shaft of the eccentric drive means and reciprocating linearly by an eccentric stroke; An inflow nozzle connected to an inlet of the main body and having an input pipe for introducing the cleaning liquid into the double pumping means side; And a discharge nozzle connected to a discharge port of the main body and having an output pipe for discharging the cleaning liquid discharged from the dual pumping means.

Description

Technical Field [0001] The present invention relates to a pumping device for oral irrigation,

The present invention relates to an oral tightening device for removing plaque and foreign matter adhered to a tooth, which is performed at the oral care level, and more particularly to a dual-piston dental prosthesis which employs a double piston structure and a damping pipe, To a cleaning liquid pumping device for an oral cleaning apparatus which reduces vibration transmitted to a handpiece and self noise generation.

Generally, tooth decay and gum disease are very closely related to oral care. In order to reduce the incidence of tooth decay and gum disease, thorough oral care is required. Brushing is the most important part of oral care, but it is not easy to remove foreign objects between tooth and tooth, and tartar stuck between tooth and gum by brushing.

Accordingly, various types of oral cleansers have been developed so far capable of cleansing foreign matter sandwiched between teeth and teeth. Developed to wash between teeth and gums, the oral cleanser is a device that removes foreign matter between the teeth with the output of water. Such conventional oral cleaners are advantageous in that they can clean teeth more simply, quickly, and effectively than toothbrushes or floss. However, the conventional oral cleanser uses a general pump provided for discharging water, so that it is impossible to obtain an effect such as substantial massage of the gum, and the problem is that the composition is coarse and the durability is deteriorated.

There are various ways to pressurize the water coming out of a nozzle of constant diameter. The pump is most effective for reciprocating or pulsating using the pressure difference generated during pressurization and differential pressure. Generally, the pump is industrially used, and it is possible to secure the durability by applying the piston and lining of the metal material. However, in case of small size or domestic use, it is inevitable to use the injection material of the synthetic resin material. The reciprocating movement of the piston causes wear at the lining portion which is in contact with the piston during long use, resulting in a pressure drop, which is an important factor of the pump, and a leakage phenomenon, resulting in a problem of product failure due to failure or performance deterioration.

A conventional oral cleanser according to a pumping method is proposed in Japanese Patent No. 1255573. 1, the patent includes a plurality of drive gears and idle gears 221 and 230 driven by a motor 220; A stroke distance derivative 251 which is inserted into the shaft of the idle gear 230 and turns linearly in accordance with the eccentric rotation, and rectilinearly reciprocates by a predetermined stroke distance; And a piston 260 and a piston 260 that are linearly driven in the cylinder body 270 in conjunction with the stroke distance derivative 251. The cylinder body 270 is filled with the piston 260 by the reciprocating motion of the piston 260, Generates a pulsating flow by the pressure, mixes the water (purified water) and the sterilizing liquid such as a goggle liquid, and discharges it into the oral cavity through the handpiece.

In the conventional oral cleanser having the above-described structure, a pulsating flow is formed in the process of water injection by the pumping operation of the reciprocating piston 260 in the cylinder 270. That is, a pulsating flow is formed between the delivery flow rate in the cylinder 270 and the delivery pressure periodically. Since the single piston is employed as the structure, a single pulse of water is injected by the amount of eccentricity of the stroke distance derivative 251 when the idle gear 230 makes a turn, resulting in a problem that the pulsation period becomes long. In addition, when the pulsation period becomes long, the pressure to be pumped by the stroke distance derivative 251 also becomes low. In order to increase the pumping pressure, the rotational speed of the motor must be increased. In this case, a large noise is generated and a load is generated in the motor, which shortens the service life.

When considering the capacity of the mouthwasher in general, water is sprayed at about 1,200 to 1,800 times per minute, and the spraying pressure is about 3.5 kg / cm 2 to 4 kg / cm 2. These discharge pressures are causing the pain by hitting the inside of the patient's mouth while causing the pulsating flow to be regularly broken. In addition, the conventional oral cleaner has a problem that when the pulsating flow is generated, the noise of the motor is large and the vibration transmitted to the hose connected to the handpiece is transmitted due to the intermittent phenomenon of the pulsating flow.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a pumping structure for discharging a cleaning liquid, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a cleaning liquid pumping device for an oral cleanser which can smoothly connect a pulsating flow to reduce oral pain.

In addition, the present invention minimizes the noise of the motor by employing a dual pumping structure, and provides a damping pipe to the hose connecting the cylinder and the handpiece to reduce the vibration of the hose according to the pumping intensity, There are other purposes in providing the device.

According to an aspect of the present invention, there is provided an electronic apparatus comprising: a main body for mounting and supporting a driving component; A driving motor installed at an upper portion of one side of the main body to provide a rotational force; An eccentric driving means provided at one side of the main body to generate a eccentricity while being provided on a shaft of the driving motor to provide a reduction ratio; Double pumping means provided respectively at the upper and lower portions of the shaft of the eccentric drive means and reciprocating linearly by an eccentric stroke; An inflow nozzle connected to an inlet of the main body and having an input pipe for introducing the cleaning liquid into the double pumping means side; And a discharge nozzle connected to a discharge port of the main body and having an output pipe for discharging the cleaning liquid discharged from the dual pumping means.

In an embodiment of the present invention, the body includes an upper plate having a plurality of upper lid grooves formed to cover the double pumping means and the inflow nozzle; A lower plate having a plurality of lower seating grooves formed therein for seating one of the double pumping means and the inflow nozzle and having a first hole for seating the driving motor and the eccentric driving means on one side; And an upper seating groove for seating the other one of the double pumping means and the inflow nozzle at a position corresponding to the upper lid groove of the upper plate and being positioned between the upper plate and the lower plate, And an intermediate plate on which an upper lid groove is formed and a second hole communicating with the first hole are formed.

Further, the eccentric drive means may include a driving gear provided on a shaft of the motor; And a driven gear engaged with the driven gear and provided with first and second eccentric shafts provided on the upper and lower sides and spaced apart from each other in the opposite directions from each other, A piston rod connected to the first and second shafts and reciprocatingly driven in an eccentric amount; A piston connected to the piston rod, and a cylinder filled with a pressure for discharging the rinsing liquid in accordance with the reciprocating drive of the piston rod, the piston being connected to the piston rod, And a bypass pipe connected to the inlet pipe and guiding the washing liquid flowing backward through the output pipe to the input pipe side.

According to another aspect of the present invention, there is provided a control apparatus for an internal combustion engine, comprising: a first check valve installed at a connecting portion between an input pipe and a cylinder of an input nozzle, A second check valve installed at a connecting portion between the output pipe of the output nozzle and the cylinder, for shielding the flow path of the cylinder; And a third check valve installed at a connecting portion between the output pipe and the bypass pipe to shield the flow path of the bypass pipe.

According to the present invention, there is provided a damping pipe connected to the discharge nozzle at one side and a damping pipe connected to a hose at another side to dampen the hose, and a clamp installed on the bottom surface of the main body, .

According to the present invention having the above-described configuration, the following effects are obtained.

First, the pump is doubly connected to the drive gear having the up-and-down eccentric shaft so that the pump is driven twice per rotation of the drive gear, thereby increasing the discharge pressure and reducing the load on the motor. The removal effect can be enhanced.

Second, the pump is configured to be double, so that the pulse cycle by the reciprocating motion of the piston is shortened by performing two injections per one cycle, and when the oral cleaning is performed, the fluid is jetted smoothly without intermittent jetting, Pain can be reduced.

Thirdly, the generation of noise is small due to the shortening of the pulse cycle of the pump, and the vibration transmitted to the hose by the pulsating flow can be attenuated by providing the damping pipe in the handpiece hose.

1 is a cross-sectional view showing an example of a conventional oral cleanser,
FIG. 2 is an external view of the oral cleanser according to the present invention. FIG.
FIG. 3 is an external perspective view showing a configuration of an embodiment of a cleaning liquid pumping apparatus for oral cleanser according to the present invention, FIG.
4 is an exploded perspective view of the cleaning liquid pumping apparatus according to the present invention,
5 is a cross-sectional view taken along line AA of Fig. 3,
6 is a sectional view taken along line BB in Fig. 3,
7 is a cross-sectional view illustrating a cleaning liquid input system according to the present invention,
8 is a cross-sectional view showing a configuration of an apparatus for preventing vibration of a hose which is a main part of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The cleaning liquid pumping apparatus for oral cavity cleaner according to the present invention adopts a double pumping structure to maximize the jet intensity to increase the effect of removing the plaque between the teeth and the teeth while shortening the pulsation period and discharging it naturally without intermittent jetting. And to minimize noise and vibration.

FIG. 2 is an external view of an oral cleanser according to the present invention. FIG.

As shown in the figure, the external structure of the oral cleanser includes a case 2; A handpiece (4) placed on one side of the case (2) and discharging the cleaning liquid into the mouth cavity; A hose (6) connected to the handpiece; A flow control handle 8 provided on the front surface of the case 2 to adjust the discharge intensity of the cleaning liquid; And a main body 10 installed in the case 2 for mounting the driving parts.

The detailed structure of the main body 10 is as follows.

Fig. 3 is an external perspective view showing a constitution of an embodiment of the cleaning liquid pumping apparatus for oral care cleaner according to the present invention, Fig. 4 is an exploded perspective view of the cleaning liquid pumping apparatus according to the present invention, Fig. 5 is a cross- Sectional view taken along line BB of Fig.

An upper plate 12 having a plurality of upper lid grooves 12a for covering the driving parts, as shown in the figure; A lower plate 14 formed with a plurality of lower seating grooves 14a for seating the driving parts and having a driving motor 15 at one side and a first hole 14b for seating with gears; An upper seating groove 16a is formed at a position corresponding to the upper cover groove 12a of the upper plate 12 and is positioned between the upper plate 12 and the lower plate 14, An intermediate plate 16 having an upper lid groove 16b formed at a position corresponding to the groove 14a and having a second hole 16c communicating with the first hole 14b; A drive motor (15) fitted in the first hole (14b) of the lower plate (14); A driving gear (18) fitted to a shaft of the driving motor (15) and seated in a second hole (16c) of the intermediate plate (16); A driven gear 20 meshing with the driven gear 18 to perform a reduced rotation corresponding to a gear ratio and having first and second shafts 22 and 24 eccentrically disposed at upper and lower portions thereof; The first and second pumps 22 and 24 are fitted in the first and second shafts 22 and 24 of the driven gear 20 and are reciprocated linearly by the amount of eccentricity of the driven gear 20 to discharge the washer fluid. 32, 34); An input pipe (36) branched from the first and second pumps (32, 34) and guiding the inflow of the cleaning liquid to them; An output pipe (38) installed at an outlet of the first and second pumps (32, 34) to guide the discharge of the cleaning liquid; A bypass pipe 40 connecting between the input pipe 36 and the output pipe 38 and guiding the washing liquid flowing backward from the output pipe 38 toward the input pipe 36; An input nozzle (42) connected to the input pipe (36) for injecting a cleaning liquid; And an output nozzle (44) connected to the output pipe (38) for discharging the cleaning liquid.

Here, each of the first and second pumps 32 and 34 includes: a piston rod 52 reciprocatingly linearly driven by an eccentric amount; A piston 54 connected to the piston rod and a cylinder 56 in which the piston 54 is inserted and generates a pressure to discharge the cleaning liquid in accordance with reciprocating linear motion of the piston rod 52.

In the embodiment of the present invention, the cleaning liquid circulating device for recovering the cleaning liquid discharged through the cylinder liner 56 is further included, and the structure thereof will be described with reference to FIG.

7 is a cross-sectional view showing a washing liquid input system according to the present invention.

As shown in the drawing. A first check valve 62 installed at a connecting portion between the input pipe 36 and the cylinder 56 and shielding the flow path of the input pipe 36; A second check valve 64 installed at a connecting portion between the output pipe 38 and the cylinder 56 for shielding the flow path of the cylinder 56 and a second check valve 64 for connecting the output pipe 38 and the bypass pipe 40 And a third check valve (66) installed on the bypass pipe for blocking the flow path of the bypass pipe. The first to third check valves 62, 64 and 66 are provided with a shield pin 72 positioned to shield the flow path and a spring 74 fitted to the shield pin 72 and pressing the flow path to shield the flow path .

The first check valve 62 is opened when the rinse liquid is injected from the input nozzle 40 and blocks the backwash of the rinse liquid filled in the cylinder 56 to the input pipe 36 side when the pumping operation is stopped. The second check valve 64 is opened when the pumping pressure is filled in the cylinder 56 and blocks the flow of the cleaning liquid present in the output pipe 38 into the cylinder when the handpiece stops operating, The third check valve 66 is opened by the pressure so that the cleaning liquid flows into the input pipe 36 through the bypass pipe 40.

The injection pressure of the washing liquid injected through the input nozzle 42 is set to be larger than the pumping pressure filled in the cylinder 56 to overcome the pressing force of the spring 74 installed in the flow path of the input pipe 36, When the injection pressure is stopped, the shielding pin 72 blocks the flow path of the input pipe 36 by the urging force of the spring 74. In addition, the discharge pressure filled in the cylinder overcomes the pressing force of the spring 74 constituting the second check valve, thereby opening the shield pin 72. When the pumping operation is stopped, The shielding pin 72 shields the flow path of the cylinder 56. In addition, the pressure in the output pipe 38 overcomes the spring force of the third check valve 66, which shuts off the bypass pipe 40. At this time, by the operation of the handpiece, the third check valve 66 is not opened because the washer fluid is continuously discharged through the output pipe.

8, one side is connected to the output side discharge pipe 44a of the output nozzle 44, and the other side is connected to the hose 6 so that the first and second pumps Shaped damping pipe (46) for relieving the vibration generated by the pulsating action of the hose (32, 34) from being transmitted to the hose (6) side; And a clamp 48 installed on the bottom surface of the case 2 for fixing the hose 6.

The assembling and operating state of the present invention constructed as described above will now be described.

First, the upper plate 12 and the lower plate 14 are coupled to each other through the intermediate plate 16 to constitute the main body 10. At this time, the first pump 32 is seated in the upper seating groove 16a of the intermediate plate 16, the second pump 34 is seated in the lower seating groove 14a of the lower plate 14, The upper lid groove 12a of the intermediate plate 16 and the upper lid groove 16a of the intermediate plate 16 cover the first and second pumps 32 and 34 to complete the main body.

The driving motor 15 is fitted into the first hole 14b of the lower plate 14 and the driving gear 18 and the driven gear 20 are fitted and engaged with the second hole 16c of the intermediate plate 16 . The piston rod 52 of the first and second pumps 32 and 34 is connected to the first shaft 22 and the second shaft 24 of the driven gear 20. The rotational force of the drive motor 15 is transmitted in the order of the drive gear 18 and the driven gear 20 and the eccentric amount of the first and second shafts 22 and 24 of the driven gear 20 52 convert the rotational motion into a linear reciprocating motion and drive it. The piston 54 interlocks with the reciprocating movement of the piston rod 52 to increase the pressure inside the cylinder 56. [ Since the gear ratio between the driving gear 18 and the driven gear 20 is at least twice as large as that of the driving gear 18, the pulsating flow of the first and second pumps 32, Thereby realizing high-pressure discharge intensity.

The cleaning liquid supplied from the input nozzle 42 flows into the cylinder 56 via the input pipe 36 and the pressure in the cylinder 56 is increased by the pumping operation of the first and second pumps 32 and 34 So that the cleaning liquid is discharged at a predetermined injection pressure.

In the embodiment of the present invention, when the driven gear 20 rotates once, the first and second pumps 32 and 34 pumping alternately to spray the cleaning liquid twice. The above structure increases the pressure in the cylinder, and is discharged while continuing naturally without interrupting the pulsation flow. As a result of the experiment of the present invention, the conventional oral cleaner in which only one pump is installed generates injection pressure of 3.5 kg / cm 2 to 4 kg / cm 2, and the pulsation cycle is finely controlled by injecting about 1200 to 1800 times per minute, In the structure of the present invention, the discharge pressure of about 1 kg / cm 2 to 7 kg / cm 2 is generated according to the operation of the flow rate control handle 8, and the pulsation cycle is generated 2400 times per minute, and the pulsating flow is naturally transmitted without interruption.

By this double pump structure, the cleaning liquid is injected by two pumping operations per one rotation, so that the effect of removing the plaque between the teeth and the teeth is enhanced, and the pulsating flow of the cleaning liquid is discharged without interruption, so that the impact of the cleaning liquid on the inner surface of the mouth is attenuated Thereby weakening the pain.

In addition, when the first and second pumps 32 and 34 perform the pumping operation according to the driving of the driving motor 15 during the dispensing operation of the handpiece 4, a pulsating flow according to the pumping operation is generated The intermittent period of the pulsating flow is transmitted to the hose 8 to cause vibration. In the present invention, since the first and second pumps 32 and 34 are alternately pumped during one rotation of the driven gear 20, there is almost no intermittent period of the pulsating flow due to the pumping operation, The vibration transmitted to the hose is minimized. Also, the continuous pumping operation of the first and second pumps 32 and 34 induces a smooth flow of the pulsating flow, thereby reducing the load on the driving motor 15 and thus significantly reducing noise generation.

On the other hand, when the first and second pumps 32 and 34 are pumped by the drive motor 15 and the cleaning liquid is supplied into the cylinder 56, when the discharge operation of the handpiece 4 is stopped And flows into the input pipe 36 through the bypass pipe 40.

This will be described in more detail with reference to FIG.

As shown in the figure, when the cleaning liquid is injected from the input nozzle 42, the first check valve 62 is opened by the injection pressure, the cleaning liquid is supplied to the cylinder 56 side through the input pipe 36, The first and second pumps 32 and 34 perform a pumping operation according to the operation of the driving motor 15. [ When the pumping pressure is filled in the cylinder 56 by the pumping operation, the pressure of the spring 74 constituting the second check valve 62 is overcome to open the outlet of the cylinder 56, 38). When the handpiece 4 is operated, the cleaning liquid reaches and is sprayed to the handpiece 4 through the output nozzle 44 and the hose 8 connected to the output pipe 38.

The second check valve 64 shuts off the outlet of the cylinder 56 and the third check valve 66 is closed by the pressure remaining in the output pipe 36. As a result, And the cleaning liquid is guided to the input pipe 36 side through the bypass pipe 38 and circulated.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be clear to those who have knowledge.

2: Case 4: Handpiece
6: Hose 8: Flow control handle
12: top plate 14: bottom plate
15: drive motor 16: intermediate plate
18: spur gear 20: driven gear
22, 24: first and second shafts 32, 34: first and second pumps
36: input pipe 38: output pipe
40: bypass pipe 42: input nozzle
44: output nozzle 46: damping pipe
48: Clamp 52: Piston rod
54: Piston 56: Cylinder
62 to 66: First to third check valves

Claims (7)

A body for mounting and supporting a driving component;
A driving motor installed at an upper portion of one side of the main body to provide a rotational force;
An eccentric driving means provided at one side of the main body to generate a eccentricity while being provided on a shaft of the driving motor to provide a reduction ratio;
Double pumping means provided respectively at the upper and lower portions of the shaft of the eccentric drive means and reciprocating linearly by an eccentric stroke;
An input nozzle connected to the main body and having an input pipe for introducing the cleaning liquid into the double pumping means; And
An output nozzle connected to the main body and having an output pipe for discharging the cleaning liquid discharged from the dual pumping means,
And a cleaning liquid pumping device for cleaning the oral cavity.
The method according to claim 1,
The body
An upper plate on which a plurality of upper lid grooves are formed to cover the double pumping means and the inflow nozzle;
A lower plate having a plurality of lower seating grooves for seating one of the double pumping means and the inflow nozzle, and having a first hole for seating the driving motor and the eccentric driving means on one side; And
An upper seating groove for seating the other one of the dual pumping means and the inflow nozzle is formed at a position corresponding to the upper lid groove of the upper plate, And a second hole communicating with the first hole is formed in the intermediate plate
And a cleaning liquid pumping device for cleaning the oral cavity.
3. The method according to claim 1 or 2,
The eccentric drive means
A driving gear provided on the shaft of the motor; And
And a driven gear engaged with the driven gear and provided with first and second eccentric shafts provided on upper and lower sides and spaced apart from each other in the opposite directions from each other.
The method of claim 3,
The double pumping means
A piston rod connected to the first and second shafts of the eccentric drive means and driven to reciprocate linearly by an eccentric amount;
A piston connected to the piston rod,
The cylinder is filled with the pressure for discharging the cleaning liquid as the piston is fitted and the reciprocating linear drive of the piston rod is performed,
And a cleaning liquid pumping device for cleaning the oral cavity.
The method according to claim 1,
Further comprising a bypass pipe connecting between the input pipe of the input nozzle and the output pipe of the output nozzle and guiding the cleaning liquid flowing backward through the output pipe to the input pipe side.
6. The method of claim 5,
A first check valve installed at a connecting portion between the input pipe and the cylinder of the input nozzle and shielding the flow path of the input pipe;
A second check valve installed at a connecting portion between the output pipe of the output nozzle and the cylinder, for shielding the flow path of the cylinder; And
A third check valve installed at a connection portion between the output pipe and the bypass pipe to shield the flow path of the bypass pipe,
And a cleaning liquid pumping device for cleaning the oral cavity.
The method according to claim 1,
A damping pipe connected to the output nozzle on one side and a damping pipe connected to the hose for attenuating the vibration of the hose,
And a clamp installed on a bottom surface of the main body and fixing the hose to suppress vibration of the hose.

Images