CN116585050A

CN116585050A - But quick assembly disassembly aircraft nose's anti-return speed increasing cell-phone

Info

Publication number: CN116585050A
Application number: CN202310516703.9A
Authority: CN
Inventors: 刘平贤
Original assignee: Guangdong Wufu Medical Equipment Co ltd
Current assignee: Guangdong Wufu Medical Equipment Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-08-15

Abstract

The invention discloses a backflow-preventing speed-increasing mobile phone capable of rapidly disassembling and assembling a machine head, and relates to the field of oral medical appliances, comprising a machine body and the machine head, wherein a first gear is arranged in the machine head and is in transmission connection with a transmission mechanism in the machine body, the backflow-preventing speed-increasing mobile phone also comprises a bearing, the first gear is arranged in the bearing and is positioned at one side of the bearing, and a rotary mounting shaft for mounting a needle is fixedly arranged in the first gear; and the other side of the bearing is provided with a backflow preventing mechanism for sealing the gap of the bearing. According to the invention, a part of the cylinder body is omitted at the machine head, the rotating installation shaft in the bearing is utilized to install the needle, and when the parts are required to be replaced, only the end cover of the machine head is required to be opened to take out the rotating installation shaft, so that the complicated disassembly and assembly process is simplified; through setting up anti-return mechanism, the air backward flow after having kept off the use, prevent that the gas in patient's oral cavity from backward flowing to the inner works with the tiny particle, cause internal pollution to reduce cross infection's possibility, and reduced anti-return mechanism's design requirement.

Description

But quick assembly disassembly aircraft nose's anti-return speed increasing cell-phone

Technical Field

The invention relates to the field of medical appliances in stomatology, in particular to a backflow-preventing speed-increasing mobile phone capable of rapidly disassembling and assembling a machine head.

Background

The dental speedup handpiece is generally used for clamping a dental needle in the stomatology department to perform operations such as drilling, grinding teeth, root canal treatment, polishing operation and the like. The speed-increasing mobile phone generally comprises a machine body and a machine head, wherein a transmission mechanism is arranged in the machine body and transmits torque of a motor to the machine head so as to drive a needle to complete various oral cavity treatment works.

At present, the dental speedup handpiece mainly has two problems in work, namely, a gear is arranged in a handpiece and is in transmission connection with a transmission mechanism in a machine body, and a mounting cylinder is arranged in the handpiece and is used for mounting all parts so as to be connected with a dental needle, but when the parts in the handpiece need to be replaced, the cylinder needs to be removed and replaced, so that the dental speedup handpiece is quite troublesome;

secondly, when the speed-increasing mobile phone is used for drilling and grinding, water vapor can be started to form an atomized mass for cooling treatment during oral treatment of a patient, when the mobile phone rotates at a high speed, the inner cavity of the mobile phone forms positive pressure due to the fact that the pressure intensity is higher than the external pressure, and the gas flows to a place with small pressure intensity. However, when a doctor stops the mobile phone, the air in the inner cavity of the machine core suddenly disappears, the rotating shaft can rotate for a period of time in an inertial mode, the air pressure in the inner cavity is smaller than that in the outside, negative pressure is formed, the outside air can be sucked from the gap of the machine core, air back suction is performed like the condition of a machine head, the air back suction can suck oral cavity pollution liquid or ground small particles into the machine core, and cross infection is likely to occur when lower patients use the machine.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an anti-reflux speed-increasing mobile phone capable of rapidly disassembling and assembling a machine head, so as to solve the problems that the speed-increasing mobile phone in the prior art is troublesome in replacing machine head components and easy in generating air reflux, and the specific technical scheme is as follows:

the anti-reflux speed-increasing mobile phone comprises a machine body and a machine head, wherein a first gear is arranged in the machine head and is in transmission connection with a transmission mechanism in the machine body, the anti-reflux speed-increasing mobile phone further comprises a bearing, the first gear is arranged in the bearing and is positioned at one side of the bearing, and a rotary mounting shaft for mounting a needle is fixedly arranged in the first gear;

and the other side of the bearing is provided with a backflow preventing mechanism for sealing the gap of the bearing.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, a part of the cylinder body is omitted at the machine head, the rotating installation shaft arranged in the bearing is utilized to install the needle, and when the parts are required to be replaced, the rear end cover of the machine head is only required to be opened to take out the rotating installation shaft, so that the complicated disassembly and assembly process is simplified;

2. by arranging the backflow prevention mechanism, the backflow of air after the use is blocked, and the gas in the mouth of a patient and small particles are prevented from flowing back into the machine core to cause internal pollution, so that the possibility of cross infection is reduced; because the cylinder body is omitted outside the bearing, only particles in the oral cavity are prevented from entering the movement from the bearing clearance during design, the design requirement of the backflow prevention mechanism is reduced, the installation of all parts is more compact, and the backflow prevention effect is good.

Further, the machine head also comprises a shell, the bearing is arranged in the shell, and a sealing ring is arranged between the bearing and the shell.

By arranging the sealing ring between the bearing and the shell, on one hand, the positioning of the bearing in the shell is convenient,

further, the backflow prevention mechanism comprises a dust cap, a dust cap and a sealing gasket, and the bearing, the dust cap and the sealing gasket are sequentially attached to each other.

Along the direction that aqueous vapor is against current, at first utilize sealed pad as first heavy structure, mainly isolate the tiny particle in the aqueous vapor, make tiny particle adsorb in sealed pad's the portion that exposes, and shield, shield's structure not only double seal's effect, still slow down inflow air many times to reduce inflow air's speed to zero gradually, guarantee the inside environment of core clean, prevent secondary infection.

Further: the anti-backflow mechanism is characterized in that a water outlet seat is sleeved outside the anti-backflow mechanism, a water inlet hole, an air inlet hole and a water outlet hole are formed in the water outlet seat, a water outlet channel connected with an output device and a water outlet channel are arranged in the machine body, a pipeline is arranged in the water outlet channel to be connected with the water inlet hole, a pipeline is arranged in the water outlet channel to be connected with the air inlet hole, and the water outlet hole is arranged along the direction of the rotary installation shaft towards the outer part of the machine head.

The water outlet seat is connected with the water pipe and the air pipe, water can be sprayed out for cooling and cleaning when the oral cavity of a patient is treated, and the water outlet seat is arranged outside the needle, so that the operation position can be well aligned, and the cleaning effect is good.

Further: the water outlet seat is provided with a step part, and the water inlet hole and the air inlet hole are respectively positioned at the top and the side part of the step part and are positioned in the same vertical plane and communicated with the water outlet hole through the water outlet seat.

The water inlet hole and the water outlet hole are respectively positioned on the side face and the top face of the vertical plane of the water outlet seat, and are both communicated with the internal channel of the water outlet seat, so that water and gas can be discharged from the water outlet hole through the inside of the water outlet seat, and the water and gas are mixed, so that the cleaning and cooling effects are better.

Further, an annular groove is formed in the outer surface of the dust cover along the circumferential direction.

The annular groove arranged on the outer surface of the dust cover is internally provided with a larger accommodating space, so that pressure relief of backflow gas can be completed, the backflow wind speed is reduced, and the backflow gas is effectively prevented from entering the machine core.

Further, an annular embedded groove is formed in one side, far away from the bearing, of the dust cap, an annular flange is arranged on the dust cap and embedded into the embedded groove, and the projection of the dust cap is coated with the projection of the dust cap in the axial direction of the rotary mounting shaft.

Firstly, the cross-sectional area of the dustproof cap is larger than that of the dustproof cap, a step is formed between the dustproof cap and the dustproof cap, the backflow gas is decompressed again, and secondly, the backflow gas is matched with the annular flange, so that the dustproof cap is better in tightness, the backflow gas is tightly matched with the backflow gas, the backflow gas is not easy to flow in from a gap, even if the backflow gas flows in, the backflow gas also needs to pass through a tortuous passage, the wind speed of the backflow gas is greatly reduced, and residual particles in the water gas cannot enter the movement at all.

Further, the transmission mechanism comprises a transmission rod, and two ends of the transmission rod are respectively connected with the power mechanism and the machine head through spiral bevel gears.

Helical bevel gears operate more smoothly and quietly than spur gears due to the interaction of the teeth, the teeth on the bevel gears cutting at an angle to the gear surface. When two teeth start to engage, the contact is gradual-starting from one end of the teeth and maintaining contact as the gear rotates to full engagement. Typical helix angles range from about 15 to about 30 degrees. The thrust load varies directly with the size of the tangent to the helix angle. Spiral is the most common gear in a transmission. They also generate a large amount of thrust and use bearings to help support the thrust load. The spiral bevel gear operates smoothly because the teeth are gradually engaged. When each pair of gears contacts, the force transfer is smoother. Spiral bevel gears differ from spur gears: 1. a straight bevel gear is one in which the teeth of the gear are straight, cut on a cone along an axis, while a spiral bevel gear is one in which the teeth are spiral, cut on a pitch cone in the form of a spiral curve. 2. The abrupt contact of the straight bevel gear also generates noise, while the spiral bevel gear operates with relatively little noise. 3. The straight bevel gear has two mating gear teeth that make abrupt contact. The contact is a line having a length equal to the width of the tooth surface, and the teeth of the two mating gears of the spiral bevel gear gradually contact. 4. In the straight bevel gear, the impact load causes vibration, so that it runs unevenly, but the spiral bevel gear gradually increases the load, and the generated vibration is small, so that it runs smoothly. 5. In straight bevel gears, teeth are also subjected to impact or shock loads due to abrupt contact, while in spiral bevel gears, teeth are subjected to gradual loads. 6. The straight bevel gear applies a small thrust to the bearing of the support shaft, and the spiral bevel gear applies a large thrust to the bearing. 7. The straight bevel gear has a short service life because it is subjected to impact load and vibration, while the spiral bevel gear has a long service life. Therefore, the spiral bevel gear is introduced into the curved hand piece, the characteristics of the spiral bevel gear are utilized, the noise during the working of the machine is reduced, the torque transmission is more stable, a series of problems existing in the traditional straight teeth and bevel gears are solved, and the curved hand piece is very suitable for the dental curved hand piece.

Further, the machine body and the machine head are connected through threads.

The threaded connection is convenient for the disassembly and assembly of the machine head and the machine body, and after the machine head is disassembled, the end cover is further disassembled, so that the internal parts of the machine head can be quickly replaced.

Further: the machine head comprises a detachable end cover, a second bearing is fixedly arranged outside the rotary mounting shaft, and the end cover is abutted to one side of the second bearing.

The end cover plays a role in abutting limiting on the second bearing, the rotary mounting shaft is mounted in the second bearing, the axial position of the rotary mounting shaft is limited, the movement of the rotary mounting shaft is prevented, meanwhile, the end cover also limits the backflow prevention mechanism, the air tightness of the backflow prevention mechanism is improved, and the backflow prevention function is guaranteed.

Drawings

FIG. 1 is a schematic diagram showing the internal drive connection of a fuselage and a nose;

FIG. 2 is a schematic view of the structure of the water outlet seat;

FIG. 3 is a schematic view of the structure of the water outlet seat at another angle;

FIG. 4 is a schematic diagram showing the relationship of the bearing inside the handpiece to the water outlet seat;

FIG. 5 is a schematic diagram of the positional relationship between the bearings inside the handpiece and the backflow prevention mechanism;

FIG. 6 is a schematic structural view of the handpiece housing;

FIG. 7 is a schematic view of the structure of the dust cap;

fig. 8 is a schematic view of the structure of the dust cap.

In the figure, 1, a fuselage; 10. a water outlet channel; 11. an air outlet channel; 12. a transmission rod; 13. a second bearing; 2. a machine head; 21. a housing; 22. an end cap; 3. a first gear; 4. a bearing; 41. a seal ring; 5. a rotary mounting shaft; 6. a dust cap; 61. an embedding groove; 7. a dust cover; 71. an annular groove; 72. an annular flange; 8. a sealing gasket; 9. a water outlet seat; 91. a water inlet hole; 92. an air inlet hole; 93. a water outlet hole; 94. a step part.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a but quick assembly disassembly aircraft nose's anti-return speed increasing cell-phone, combines the fig. 1, fig. 4, fig. 5, fig. 6 to show, including fuselage 1 and aircraft nose 2, be equipped with transfer line 12 in the fuselage 1, transfer line 12 both ends all are equipped with spiral bevel gear, and electric motor lamp drive mechanism is connected with the transmission moment of torsion to one end, and the other end is connected with the transmission of the interior first gear 3 of aircraft nose 2, and spiral bevel gear compares ordinary straight-tooth gear or helical gear and has the characteristics that transmit steadily, noise is little, especially adapted curved cell-phone of dentistry to steady, safety, silence requirement.

The bearing 4 is fixedly arranged outside the first gear 3, and a sealing ring 41 is arranged between the bearing 4 and the shell 21 so as to prevent water in the oral cavity from flowing back into the movement from a gap between the bearing 4 and the shell 21. The first gear 3 is mounted on one side of the bearing 4, a rotary mounting shaft 5 is arranged in the first gear 3, a hollow part is arranged in the rotary mounting shaft, a mounting position is arranged in the hollow part, and a dental needle is detachably mounted.

The other side of the bearing 4 is tightly provided with a backflow prevention mechanism which is limited between the bearing 4 and the shell 21, and a water outlet seat 9 is arranged outside the backflow prevention mechanism and used for spraying water-gas mixed liquid into the oral cavity of a patient during working so as to cool and clean chips and particles in the oral cavity, and meanwhile, the water outlet seat 9 also has a limiting function on the backflow prevention mechanism.

Referring to fig. 7 and 8 again, the backflow prevention mechanism comprises a dust cap 6, a dust cap 7 and a sealing gasket 8 from the bearing to the outer side of the machine head, wherein the top of the dust cap 6 is provided with a mounting groove which is matched with a convex surface at the bottom of the bearing and is tightly attached to the convex surface, so that water vapor is effectively prevented from flowing back to a gap of the bearing 4, and the bottom of the dust cap 6 is provided with an embedded groove 61 which is matched with an annular flange 72 at the top of the dust cap 7 below; the annular groove 71 is arranged on the outer circumference of the dust cover 7, a larger accommodating space is arranged in the annular groove 71, pressure relief of backflow gas can be completed, the backflow wind speed is reduced, moisture after speed reduction is not easy to flush into the machine core along a gap finger joint, and the bottom of the dust cover 7 is slotted and is used for being matched with the lower sealing gasket 8. The sealing gasket 8 is used as a first barrier and is mainly used for blocking small particles in water vapor, the sealing gasket 8 is also provided with steps, the small particles are retained at the exposed part of the sealing gasket, and the cross sectional areas of the dustproof cap 6, the dustproof cover 7 and the sealing gasket 8 are gradually reduced.

As shown in fig. 6, the casing 21 of the machine head 2 is connected with the machine body 1 through threads, the top of the casing 21 is provided with an end cover 22, the end cover 22 is installed in a clamping connection, threaded connection and other modes, the outer side of the upper part of the rotary installation shaft 5 is fixedly provided with a second bearing 13, the end cover 22 is abutted against the upper part of the second bearing 13, so that the limit of the rotary installation shaft 5 is completed, and when the rotary installation shaft is disassembled, the rotary installation shaft 5 can be removed by opening the end cover, so that various components can be replaced conveniently.

As shown in fig. 1-3, the body 1 is provided with a water outlet channel 10 and a gas outlet channel 11, which are both used for installing a pipeline (the pipeline is not shown in the figure), gas and water are input into the pipeline through a motor connection impeller, the water outlet seat 9 is provided with a step portion 94, the gas enters from an air inlet hole 92 on the side surface of the step portion 94, the water enters from an air inlet hole 91 on the top of the step portion 94, then the water and the gas are mixed in the channel in the water outlet seat 9, and are sprayed out from a water outlet hole 93 on the bottom of the water outlet seat to clean and cool the oral cavity of a patient. As a preferred mode, each water inlet 91, each air inlet 92 and each water outlet 93 are used as a group, a plurality of groups of channels can be arranged to spray out water vapor, a plurality of water outlets 93 evenly encircle the bottom of the water outlet seat 9 and are distributed, the water inlets 91, the air inlets 92 and the water outlets 93 in the same group are all in the same vertical plane, so that the water vapor is blocked in the channels less, a certain impact force is ensured during spraying, and the cleaning effect is better. Because the water outlet seat 9 is arranged outside the backflow prevention mechanism, the water outlet 93 is also arranged in the same direction as the dental needle, so that the angle does not need to be regulated basically, and the water outlet seat can spray water to the most suitable position by finger joint.

The invention has convenient disassembly and assembly, can accurately and efficiently spray out water vapor, adopts the spiral bevel gear, has stable transmission and small noise, and is schematically popularized.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a but quick assembly disassembly aircraft nose prevents backward flow acceleration rate cell-phone, includes fuselage (1) and aircraft nose (2), is provided with in aircraft nose (2) first gear (3) and the drive mechanism transmission in fuselage (1) and is connected, its characterized in that: the novel automobile needle is characterized by further comprising a bearing (4), wherein the first gear (3) is arranged in the bearing (4) and is positioned at one side of the bearing (4), and a rotary installation shaft (5) for installing an automobile needle is fixedly arranged in the first gear (3);

the other side of the bearing (4) is provided with a backflow prevention mechanism for sealing the gap of the bearing (4).

2. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 1, wherein the anti-reflux speed increasing mobile phone is characterized in that: the machine head (2) further comprises a shell (21), the bearing (4) is arranged in the shell (21), and a sealing ring (41) is arranged between the bearing (4) and the shell (21).

3. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 1, wherein the anti-reflux speed increasing mobile phone is characterized in that: the anti-backflow mechanism comprises a dustproof cap (6), a dustproof cover (7) and a sealing gasket (8), and the bearing (4), the dustproof cap (6), the dustproof cover (7) and the sealing gasket (8) are sequentially attached to each other.

4. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 1, wherein the anti-reflux speed increasing mobile phone is characterized in that: the anti-backflow mechanism is characterized in that a water outlet seat (9) is sleeved outside the anti-backflow mechanism, a water inlet hole (91), an air inlet hole (92) and a water outlet hole (93) are formed in the water outlet seat (9), a water outlet channel (10) connected with an output device and a water outlet channel (11) are arranged in the machine body (1), a pipeline is arranged in the water outlet channel (10) and connected with the water inlet hole (91), a pipeline is arranged in the water outlet channel (11) and connected with the air inlet hole (92), and the water outlet hole (93) is arranged along the direction of the rotary installation shaft (5) towards the outer portion of the machine head (2).

5. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 4, wherein: the water outlet seat (9) is provided with a step part (94), and the water inlet hole (91) and the air inlet hole (92) are respectively positioned at the top and the side part of the step part (94) and positioned in the same vertical plane and communicated with the water outlet hole (93) through the water outlet seat (9).

6. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 3, wherein: an annular groove (71) is formed in the outer surface of the dust cover (7) along the circumferential direction.

7. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 3, wherein: annular embedded groove (61) is seted up to one side that bearing (4) was kept away from to shield (6), be equipped with annular flange (72) on shield (7), annular flange (72) embedding in embedded groove (61), in along rotatory installation axle (5) axis direction, the projection cladding of shield (6) the projection of shield (7).

8. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 1, wherein the anti-reflux speed increasing mobile phone is characterized in that: the transmission mechanism comprises a transmission rod (12), and two ends of the transmission rod (12) are respectively connected with the power mechanism and the machine head (2) through spiral bevel gears.

9. The anti-reflux speed increasing mobile phone with the machine head capable of being quickly disassembled and assembled according to claim 1, wherein the anti-reflux speed increasing mobile phone is characterized in that: the machine body (1) is connected with the machine head (2) through threads.

10. The anti-reflux speed increasing mobile phone with a machine head capable of being quickly disassembled and assembled according to any one of claims 1 to 9, wherein: the machine head (2) comprises a detachable end cover (22), a second bearing (13) is fixedly arranged outside the rotary mounting shaft (5), and the end cover (22) is abutted to one side of the second bearing (13).