CN114099015B - Pneumatic sand blasting machine for dentistry - Google Patents
Pneumatic sand blasting machine for dentistry Download PDFInfo
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- CN114099015B CN114099015B CN202111628886.0A CN202111628886A CN114099015B CN 114099015 B CN114099015 B CN 114099015B CN 202111628886 A CN202111628886 A CN 202111628886A CN 114099015 B CN114099015 B CN 114099015B
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- pipe
- sand
- way
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- 238000005488 sandblasting Methods 0.000 title claims abstract description 47
- 239000004576 sand Substances 0.000 claims abstract description 53
- 239000007921 spray Substances 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 74
- 230000007704 transition Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 33
- 230000033001 locomotion Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001415288 Coccidae Species 0.000 description 1
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 241000669058 Fiorinia theae Species 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 206010044029 Tooth deposit Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
- A61C3/025—Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/06—Implements for therapeutic treatment
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a pneumatic sand blasting machine for dentistry, which comprises a pipe body, a sand bottle, a sand blasting channel, a gas transmission channel, a pneumatic motor and a nozzle, wherein the sand blasting channel, the gas transmission channel and the pneumatic Ma Dajun are arranged in the pipe body, the sand blasting channel is arranged in front of the gas transmission channel, the gas transmission channel and the sand blasting channel are respectively communicated with the sand bottle, the nozzle is arranged at the front end of the pipe body, the nozzle comprises a shell, a spray pipe and a coil, one end of the shell is fixed on the pipe body, one end of the spray pipe is fixedly sleeved in the shell, the other end of the spray pipe penetrates out of the shell, one end of the coil is rotatably arranged in the spray pipe, and the other end of the coil is connected with the pneumatic motor and is communicated with the sand blasting channel. The application has the effect of improving the cleaning efficiency of attachments on the tooth surface.
Description
Technical Field
The invention relates to the field of tooth cleaning equipment, in particular to a pneumatic sand blasting machine for dentistry.
Background
Currently, pneumatic sand blasters are a dental special instrument commonly used in the market today, and are often used in dentistry as a device for rapidly cleaning and whitening teeth for cleaning and micro-roughening the surface before bonding. The pneumatic sand blasting machine drives special particles to the surface of the teeth through high-pressure air flow to remove attachments on the surface of the teeth which are not easy to scrape, and the sand blasting machine can clean tea scale, tobacco scale and food soft scale attached to the teeth instantly and softly, can clean the pit gaps which cannot be achieved by the ultrasonic tooth cleaning machine, and the teeth sprayed with sand are smooth and clean and are not easy to deposit dental calculus again.
In the related art, particles sprayed out by a pneumatic sand blasting machine mainly remove attachments on the surfaces of teeth by impact force, and the attachments which are firmly stuck are removed by repeated sand blasting, so that the cleaning efficiency is low.
In the above-described related art, the inventors have considered that there is a defect that the efficiency of removing the attachments on the tooth surface by the fine particles discharged from the pneumatic blasting machine is low.
Disclosure of Invention
In order to improve the efficiency of removing attachments on the tooth surface by particles sprayed by a pneumatic sand blasting machine, the application provides a pneumatic sand blasting machine for dentistry.
The application provides a pneumatic sand blasting machine for dentistry adopts following technical scheme:
the utility model provides a pneumatic sand blasting machine for dentistry, includes body, sand bottle, sand blasting way, gas-supply way, air motor and nozzle, sand blasting way, gas-supply way and pneumatic Ma Dajun are located in the body, sand blasting way is located the place ahead of gas conveying way, gas conveying way and sand blasting way communicate respectively the sand bottle, the nozzle is located the front end of body, the nozzle includes shell, spray tube and coil, the one end of shell is fixed in the body, the fixed cover of one end of spray tube is located in the shell, the other end of spray tube wears out the shell, the one end of coil rotate install in the spray tube, the other end of coil is connected air motor and intercommunication sand blasting way.
Through adopting above-mentioned technical scheme, high-pressure gas passes through the gas transmission channel and gets into the sand bottle, blow up the particle in the sand bottle, then high-pressure gas flow drives the particle and gets into the sand blasting way, get into the coil through the sand blasting way, pneumatic motor drives the rotation of coil, particle in the coil receives frictional force and produces the same motion of a same direction of rotation with the coil, particle in the coil is forward under the effect of high-pressure gas simultaneously, then spout through the coil, spout from the spout of spray tube, the spun particle has the same axial direction with the spout of spray tube and the tangential direction of movement of spout simultaneously, when the spun particle contacts with the attachment on tooth surface, the same direction of movement with the axial direction of spray tube can form the impact to the attachment, make the attachment loose, and the tangential direction of movement with the spout of spray tube can exert a lateral force to the attachment, make the attachment leave original position, thereby improve the clear efficiency of attachment.
Preferably, the air inlet of the air motor is connected with an air inlet pipe, the air inlet pipe is arranged in the pipe body, and one end, far away from the air motor, of the air inlet pipe is arranged at the rear end of the pipe body and is communicated with the rear end of the air conveying channel.
Through adopting above-mentioned technical scheme, intake pipe and the rear end intercommunication of gas transmission way for intake pipe and gas-supply pipe can share an air supply, only need connect an air supply pipe just can realize the ventilation of intake pipe and gas-supply pipe.
Preferably, the pneumatic motor is installed in the middle of the pipe body, the pneumatic motor is connected with the coil through a transmission mechanism, and the transmission mechanism is installed in the pipe body.
Through adopting above-mentioned technical scheme, pneumatic motor installs the middle part at the body and can reduce the influence of pneumatic motor to the size of the diameter of the front end of body, and the size of the front end of body can be designed as required, avoids because pneumatic motor leads to the front end of body too big and influences the condition emergence of the convenience that pneumatic sand blasting machine used.
Preferably, the transmission mechanism comprises a transmission shaft, a driving bevel gear, a driven bevel gear and a connecting rod, wherein the transmission shaft is rotationally connected with the pipe body, one end of the transmission shaft is fixedly connected with an output shaft of the pneumatic motor, the other end of the transmission shaft is fixedly connected with the driving bevel gear, the driven bevel gear is meshed with the driving bevel gear, the driven bevel gear is fixedly connected with the connecting rod, the connecting rod is rotationally connected with the pipe body, and one end of the connecting rod, which is far away from the driven bevel gear, is connected with the coil.
Through adopting above-mentioned technical scheme, through driving bevel gear and driven bevel gear's setting, realize the change of direction of rotation to can set up the coil into the direction that has certain contained angle with the body, be convenient for clean tooth operation and staff observe.
Preferably, one end of the coil, which is close to the connecting rod, is fixedly connected with a connector, one end of the connecting rod, which is far away from the driven bevel gear, is fixedly connected with a sleeve which is in butt joint with the connector, and the connector is detachably connected with the sleeve.
Through adopting above-mentioned technical scheme, through connector and telescopic being connected, can convenient and fast change nozzle.
Preferably, the connector and the sleeve are clamped with each other, and the connector and the sleeve are connected and separated through pushing and pulling.
Through adopting above-mentioned technical scheme, connector and the mutual joint of sleeve can realize connecting fast to connect stable safety.
Preferably, the inner wall of the coil is fixedly provided with a spiral sheet, and the length direction of the spiral sheet is consistent with the length direction of the coil.
By adopting the technical scheme, the spiral sheet can improve the rotation speed of particles in the spiral tube, so that the particles sprayed by the spray pipe have larger lateral speed, and the clear efficiency of attachments on the tooth surface is improved.
Preferably, the water delivery pipe further comprises a water delivery pipe, the water delivery pipe is arranged in the pipe body, a water cavity is arranged between the outer wall of the spray pipe and the inner wall of the shell, the water cavity surrounds the spray pipe, the shell is provided with a plurality of water through holes, two ends of the water through holes are respectively communicated with the water cavity and the water delivery pipe, a plurality of water outlets which are communicated with the water cavity are arranged between the inner wall of one end of the shell, which is far away from the pipe body, and the outer wall of the spray pipe, and the water outlets surround the spray pipe at intervals.
By adopting the technical scheme, the water sprayed from the water outlet surrounds particles sprayed from the spray pipe, so that the splashing of the particles around is reduced, and the concentration and the utilization rate of the particles are improved.
Preferably, the tube body comprises a front tube and a rear tube, the front tube and the rear tube are connected with each other in a rotating way through a rotator, and the nozzle and the pneumatic motor are both fixed on the front tube.
By adopting the technical scheme, the front tube can be rotated according to the requirement in the treatment process, the nozzle can be adjusted to any desired angle, and the working efficiency is improved.
Preferably, the rear end fixedly connected with rotary joint of front tube, the front end fixedly connected with mount pad of rear tube, rotary joint rotates to be connected the mount pad and forms sealing connection, the sand conveying way includes anterior sand way and rear portion sand way, the water conveying way includes anterior water course and rear portion water course, anterior sand way and anterior water course install respectively in the front tube, rear portion sand way and rear portion water course install respectively in the rear tube, the rear end of anterior sand way and the rear end of anterior water course run through respectively rotary joint, the rear end protrusion of anterior sand way the rear end face of rotary joint and the axis of the rear end of anterior sand way with rotary joint's rotation center line coincidence, the rear end of anterior sand way with the front end of rear portion sand way rotates the socket, the front end of rear portion sand way and rear portion water course pass respectively the front end face of mount pad, the rear end face of rotary joint with be equipped with between the front end of front end and the front end of installation annular transition chamber and the front end of rear portion water course intercommunication chamber respectively.
Through adopting above-mentioned technical scheme, anterior sand way and rear portion sand way can dock smoothly through rotary joint and mount pad to anterior sand way can rotate along with the front pipe, and anterior water course and rear portion water course pass through the transition chamber and connect, make anterior water course can rotate along with the front pipe, and the angle of swivel nozzle can not influence the transport of particulate and the transport of water.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the pneumatic motor drives the coil to rotate, particles in the coil are subjected to friction force to generate motion in the same direction as the rotation direction of the coil, the ejected particles have a motion direction tangential to the nozzle of the spray pipe at the same time after being ejected from the nozzle of the spray pipe, when the ejected particles are contacted with attachments on the surface of teeth, the motion direction tangential to the nozzle of the spray pipe can apply a lateral force to the attachments, so that the attachments leave the original position, and the clear efficiency of the attachments is improved;
2. the pneumatic motor is arranged in the middle of the pipe body, and is connected with the coil through the transmission mechanism, so that the influence of the pneumatic motor on the diameter of the front end of the pipe body can be reduced, the front end of the pipe body can be designed according to the requirements, and the situation that the use convenience of the pneumatic sand blasting machine is influenced due to the fact that the front end of the pipe body is too large due to the pneumatic motor is avoided;
3. the transmission mechanism is provided with the driving bevel gear and the driven bevel gear, so that the change of the rotation direction is realized, and the coil can be arranged in a direction with a certain included angle with the tube body, so that tooth cleaning operation and observation by staff are facilitated.
Drawings
Fig. 1 is a schematic cross-sectional view of a pneumatic dental sander according to an embodiment of the present application.
FIG. 2 is a schematic cross-sectional view of a nozzle according to an embodiment of the present application.
Fig. 3 is an enlarged view at a in fig. 1.
Fig. 4 is an enlarged view at B in fig. 1.
Reference numerals illustrate: 1. a tube body; 11. a front tube; 12. a rear tube; 13. a rotary joint; 14. a mounting base; 15. a rotator; 2. a sand bottle; 3. sand blasting; 4. an air delivery channel; 5. a pneumatic motor; 6. a nozzle; 61. a housing; 62. a spray pipe; 63. a coil; 64. a connector; 65. a spiral sheet; 66. a water chamber; 67. a water through hole; 68. a straight rod; 7. a transmission mechanism; 71. a transmission shaft; 72. a drive bevel gear; 73. a driven bevel gear; 74. a connecting rod; 75. a sleeve; 8. an air inlet pipe; 9. a water delivery channel.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a pneumatic sand blasting machine for dentistry. Referring to fig. 1 and 2, a pneumatic sand blasting machine for dentistry includes a pipe body 1, a sand bottle 2, a sand blasting channel 3, a gas transmission channel 4, a pneumatic motor 5 and a nozzle 6, wherein the sand blasting channel 3, the gas transmission channel 4 and the pneumatic motor 5 are all arranged in the pipe body 1, the sand blasting channel 3 is arranged at the front end of the pipe body 1, the gas transmission channel 4 is arranged at the rear end of the pipe body 1, the front end of the gas transmission channel 4 and the rear end of the sand blasting channel 3 are respectively communicated with the sand bottle 2, the rear end of the gas transmission channel 4 is arranged at the rear end of the pipe body 1, the front end of the sand blasting channel 3 is communicated with the nozzle 6, the nozzle 6 is arranged at the front end of the pipe body 1, and the axis of the nozzle 6 and the axis of the pipe body 1 form a forty-five-degree included angle, so that the tooth cleaning process of the nozzle 6 can be observed conveniently. The nozzle 6 comprises a shell 61, a spray pipe 62 and a coil 63, wherein the shell 61 is cylindrical, the shell 61, the spray pipe 62 and the coil 63 are coaxial, one end of the shell 61 is fixedly sleeved at the front end of the pipe body 1 and can be detached, the joint of the shell 61 and the pipe body 1 forms a sealing connection, one end of the spray pipe 62 is fixedly sleeved in the shell 61, the other end of the spray pipe 62 penetrates out of the shell 61, annular grooves are respectively formed in the inner walls of the two ends of the spray pipe 62, and bearings are arranged in the annular grooves. The coil 63 is rotationally connected with the spray pipe 62 through bearings in the two annular grooves and forms sealing connection with the spray pipe 62, one end of the coil 63 is connected with the air motor 5 and communicated with the sand blasting channel 3, the other end of the coil 63 is fully arranged in the spray pipe 62, and the air motor 5 drives the coil 63 to rotate, so that particles of the coil 63 rotate. The inner wall of the coil 63 is fixedly provided with a spiral sheet 65, the length direction of the spiral sheet 65 is consistent with the length direction of the coil 63, and the spiral sheet 65 improves the rotation speed of particles in the coil 63, so that the particles sprayed by the spray pipe 62 have larger lateral speed.
The pneumatic motor 5 is installed in the middle part of body 1, and the coil 63 is connected through drive mechanism 7 to pneumatic motor 5, and drive mechanism 7 installs in body 1, reduces the influence of pneumatic motor 5 to the size of the diameter of the front end of body 1 to can be with the front end design of body 1 less, facilitate the use. The air inlet of the air motor 5 is connected with an air inlet pipe 8, the air outlet of the air motor 5 is connected with an exhaust pipe, the air inlet pipe 8 and the exhaust pipe are both arranged in the pipe body 1, one end, far away from the air motor 5, of the air inlet pipe 8 is fixedly arranged at the rear end of the pipe body 1 and is communicated with the rear end of the air conveying pipeline 4, and the air inlet pipe 8 and the air conveying pipeline can share one air source connecting pipe. One end of the exhaust pipe far away from the pneumatic motor 5 penetrates through the side wall of the pipe body 1, and gas passing through the pneumatic motor 5 is discharged from one end of the exhaust pipe far away from the pneumatic motor 5.
Referring to fig. 1 and 3, the transmission mechanism 7 includes a transmission shaft 71, a drive bevel gear 72, a driven bevel gear 73, and a link 74, the transmission shaft 71 rotates the connection pipe body 1, one end of the transmission shaft 71 is fixedly connected with the output shaft of the air motor 5 and is coaxial with the output shaft of the motor, the other end of the transmission shaft 71 is fixedly connected with the drive bevel gear 72, the driven bevel gear 73 is meshed with the drive bevel gear 72, the driven bevel gear 73 is fixedly connected with the link 74, the link 74 rotates the connection pipe body 1, and one end of the link 74 remote from the driven bevel gear 73 is connected with the coil 63. The drive bevel gear 72 and the driven bevel gear 73 drive the motor in a backward direction to the coil 63 to meet the requirement that the axis of the nozzle 6 form a forty-five degree angle with the axis of the tube 1.
Referring to fig. 2 and 3, one end of the coil 63, which is close to the connecting rod 74, is fixedly connected with the connector 64 through a plurality of straight rods 68, the straight rods 68 are fixed on the outer wall of the coil 63, the connector 64 is cuboid, one end of the connecting rod 74, which is far away from the driven bevel gear 73, is fixedly connected with a sleeve 75 which is in butt joint with the connector 64, an inner hole of the sleeve 75 is a square hole, the sleeve 75 is arranged on one side of the sand blasting channel 3 and is in rotary connection with the pipe body 1, the sleeve is in sealing rotary connection with the pipe body 1 through a bearing, and the connector 64 is detachably connected with the sleeve 75. The detachable connection of connector 64 and sleeve 75 is realized through the joint, be equipped with spacing hole on four sides of connector 64 respectively, slidable mounting has the gag lever post in the spacing hole, be equipped with spacing spring between the bottom in gag lever post and spacing hole, the bottom in fixed connection gag lever post and spacing hole is respectively at spacing spring's both ends, the one end protrusion spacing hole of spring is kept away from to the gag lever post, the one end that the spring was kept away from to the gag lever post is equipped with the circular cone guide surface, the spacing downthehole is located to the one end of circular cone guide surface, the outside of spacing hole is located to the other end of circular cone guide surface. The four side walls of the inner hole of the sleeve 75 are respectively provided with a limit groove, when the connector 64 is inserted into the sleeve 75 in place, one end of the limit rod is clamped into the limit grooves, so that the connector 64 and the sleeve 75 are mutually fixed, when the connector 64 is pulled forcefully, the conical guide surface is extruded by the side walls of the limit grooves, and gradually retracts into the limit holes, when the limit rod is completely separated from the limit grooves, the connector 64 and the sleeve 75 can be pulled relatively, the connector 64 and the sleeve 75 are separated from each other, and the convenient and quick replacement of the nozzle 6 is realized.
Referring to fig. 1, 2 and 3, a water pipe 9 for conveying water is installed in the pipe body 1, and both ends of the water pipe 9 are respectively provided at both ends of the pipe body 1. A water cavity 66 is arranged between the outer wall of the spray pipe 62 and the inner wall of the shell 61, the water cavity 66 surrounds the spray pipe 62, a plurality of water through holes 67 which are uniformly distributed are formed in the side wall of the shell, a sealed connecting cavity is formed between the outer wall of the shell and the side wall of the pipe body 1, the two ends of the water through holes 67 are respectively connected with the water cavity 66 and the connecting cavity, a plurality of water outlets which are communicated with the water cavity 66 are formed between the inner wall of one end of the shell, far away from the pipe body 1, and the outer wall of the spray pipe 62, the water outlets are distributed at intervals around the spray pipe 62, and the water outlets are crescent-shaped. The water is sprayed out from the water outlet through the water delivery channel 9, the connecting cavity, the water through hole 67 and the water cavity 66 respectively, the sprayed water surrounds particles sprayed out from the spray pipe 62, the situation that the particles splash around is reduced, the concentration degree and the utilization rate of the particles are improved, meanwhile, the sprayed water can encircle the sprayed particles in the surrounding range of the water, and the particles with lateral movement speed are prevented from being dispersed.
Referring to fig. 4, the tube body 1 includes a front tube 11 and a rear tube 12, the front tube 11 and the rear tube 12 are rotatably connected to each other by a rotator 15, the nozzle 6 is provided at the front end of the front tube 11, the air motor 5 is provided at the middle of the front tube 11, and the sand bottle 2 is mounted on the rear tube 12. The rotator 15 comprises a rotating cylinder, wherein the inner wall of the front end of the rotating cylinder is in threaded connection with the outer wall of the rear end of the front pipe 11 and is fixed with the front pipe 11, an annular step-shaped bulge is arranged on the inner wall of the rear end of the rotating cylinder, a bulge matching groove is arranged on the outer wall of the front end of the rear pipe 12, the bulge is clamped into the groove, the rear end of the rotating cylinder is connected with the front end of the rear pipe 12 in a clamped manner through the bulge, the rotating cylinder is in rotating connection with the rear pipe 12, and the axial displacement of the front pipe 11 and the rear pipe 12 is limited, but the mutual rotation of the front pipe 11 and the rear pipe 12 is not limited. The rear end of the front pipe 11 is fixedly connected with a rotary joint 13, the front end of the rear pipe 12 is fixedly connected with a mounting seat 14, the rotary joint 13 is rotationally connected with the mounting seat 14 and forms sealing connection, an annular first transition cavity and an annular second transition cavity are arranged between the rear end face of the rotary joint 13 and the front end face of the mounting seat 14, the first transition cavity and the second transition cavity are separated from each other and are not communicated, and the first transition cavity is sleeved in the second transition cavity. The sand conveying channel comprises a front sand channel and a rear sand channel, the water conveying channel 9 comprises a front water channel and a rear water channel, the air inlet pipe 8 comprises a front air pipe and a rear air pipe, the front sand channel, the front water channel and the front air pipe are respectively arranged in the front pipe 11, the rear end of the front sand channel, the rear end of the front water channel and the rear end of the front air pipe respectively penetrate through the rear end face of the rotary joint 13, the rear end of the front water channel is communicated with the first transition cavity, and the rear end of the front air pipe is communicated with the second transition cavity. The rear sand channel, the rear water channel and the rear air pipe are respectively arranged in the rear pipe 12, the front end of the rear sand channel, the front end of the rear water channel and the front end of the rear air pipe respectively penetrate through the front end face of the mounting seat 14, the front end of the rear water channel is communicated with the first transition cavity, and the front end of the rear air pipe is communicated with the second transition cavity. The rear end of the front sand channel, the front end of the rear sand channel, the rotary joint 13 and the central axis of the front pipe 11 are coincident, the rear end of the front sand channel protrudes out of the rear end face of the rotary joint 13, and the rear end of the front sand channel is rotationally connected with the front end of the rear sand channel and forms a seal through a rubber sealing ring. The rear end of the rear pipe 12 is connected with a quick connector, and the quick connector is connected with the rear pipe 12 in a plugging manner.
The implementation principle of the pneumatic sand blasting machine for dentistry of the embodiment of the application is as follows: the high-pressure gas enters the sand bottle 2 through the gas transmission channel 4 to blow up particles in the sand bottle 2, and then the high-pressure gas flow drives the particles to enter the sand blasting channel 3 and enter the coil 63 through the sand blasting channel 3. The pneumatic motor 5 drives the coil 63 to rotate, particles in the coil 63 are subjected to friction force to generate motion in the same direction as the rotation direction of the coil 63, meanwhile, the particles in the coil 63 move forwards under the action of high-pressure gas and then are ejected from the nozzle of the spray pipe 62 through the coil 63, and the ejected particles simultaneously have the same axial direction as the spray pipe 62 and the motion direction tangential to the nozzle of the spray pipe 62. When the sprayed particles contact with the attachments on the tooth surfaces, the same movement direction as the axial direction of the spray pipe 62 can impact the attachments to release the attachments, and the movement direction tangential to the spray opening of the spray pipe 62 can apply a lateral acting force to the attachments to enable the attachments to leave the original positions, so that the clear efficiency of the attachments is improved. The water is sprayed out from the water outlet through the water delivery channel 9, the connecting cavity, the water through hole 67 and the water cavity 66 respectively, and the sprayed water surrounds particles sprayed out from the spray pipe 62, so that the situation that the particles splash around is reduced. In the use, the back pipe 12 is held by the hand, and the front pipe 11 can be rotated as required to adjust the nozzle 6 to a required angle, thereby facilitating the use.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. A pneumatic sand blasting machine for dentistry, which is characterized in that: including body (1), sand bottle (2), sand blasting way (3), air duct (4), pneumatic motor (5) and nozzle (6), sand blasting way (3), air duct (4) and pneumatic motor (5) are all located in body (1), sand blasting way (3) are located the place ahead of air duct (4), air duct (4) and sand blasting way (3) communicate respectively sand bottle (2), nozzle (6) are located the front end of body (1), nozzle (6) include shell (61), spray tube (62) and coil (63), one end of shell (61) is fixed in body (1), the fixed cover of one end of spray tube (62) is located in shell (61), the other end of spray tube (62) wears out shell (61), one end of coil (63) rotate install in spray tube (62), the other end of coil (63) is connected pneumatic motor (5) and communicate in sand blasting way (3).
The novel water delivery device is characterized by further comprising a water delivery channel (9), wherein the water delivery channel (9) is arranged in the pipe body (1), a water cavity (66) is arranged between the outer wall of the spray pipe (62) and the inner wall of the shell (61), the water cavity (66) surrounds the spray pipe (62), the shell (61) is provided with a plurality of water through holes (67), two ends of the water through holes (67) are respectively communicated with the water cavity (66) and the water delivery channel (9), a plurality of water outlets which are communicated with the water cavity (66) are arranged between the inner wall of one end, far away from the pipe body (1), of the shell (61) and the outer wall of the spray pipe (62), and the water outlets are distributed at intervals around the spray pipe (62);
the pipe body (1) comprises a front pipe (11) and a rear pipe (12), the front pipe (11) and the rear pipe (12) are connected with each other in a rotating way through a rotator (15), and the nozzle (6) and the pneumatic motor (5) are both fixed on the front pipe (11);
the utility model provides a sand blasting machine, including front pipe (11), rear end fixedly connected with rotary joint (13), front pipe (12), rotary joint (13) rotate and connect mount pad (14) and form sealing connection, sand blasting way (3) are including front portion sand way and rear portion sand way, water delivery channel (9) include front portion water course and rear portion water course, front portion sand way and front portion water course install respectively in front pipe (11), rear portion sand way and rear portion water course install respectively in rear pipe (12), the rear end of front portion sand way and the rear end of front portion water course run through respectively rotary joint (13), the rear end protrusion of front portion sand way the rear end face of rotary joint (13) and the axis of the rear end of front portion sand way with the rotation coincidence of rotary joint (13), the rear end of front portion sand way with the front end of rear portion sand way rotates, front portion sand way and rear portion sand way install respectively the front end of front end and rear end of rear end channel (14) and front end of rear end channel (14) are equipped with the transition chamber (14) respectively.
2. A pneumatic dental sander as set forth in claim 1, wherein: the air inlet of the air motor (5) is connected with an air inlet pipe (8), the air inlet pipe (8) is arranged in the pipe body (1), and one end, far away from the air motor (5), of the air inlet pipe (8) is arranged at the rear end of the pipe body (1) and is communicated with the rear end of the air conveying channel (4).
3. A pneumatic dental sander as set forth in claim 1, wherein: the pneumatic motor (5) is arranged in the middle of the pipe body (1), the pneumatic motor (5) is connected with the coil (63) through a transmission mechanism (7), and the transmission mechanism (7) is arranged in the pipe body (1).
4. A pneumatic dental sander as set forth in claim 3, wherein: the driving mechanism (7) comprises a driving shaft (71), a driving bevel gear (72), a driven bevel gear (73) and a connecting rod (74), wherein the driving shaft (71) is rotationally connected with the pipe body (1), one end of the driving shaft (71) is fixedly connected with an output shaft of the pneumatic motor (5), the other end of the driving shaft (71) is fixedly connected with the driving bevel gear (72), the driven bevel gear (73) is meshed with the driving bevel gear (72), the driven bevel gear (73) is fixedly connected with the connecting rod (74), the connecting rod (74) is rotationally connected with the pipe body (1), and one end, away from the driven bevel gear (73), of the connecting rod (74) is connected with the coil pipe (63).
5. The pneumatic dental sander according to claim 4, wherein: one end of the coil (63) close to the connecting rod (74) is fixedly connected with a connector (64), one end of the connecting rod (74) away from the driven bevel gear (73) is fixedly connected with a sleeve (75) in butt joint with the connector (64), and the connector (64) is detachably connected with the sleeve (75).
6. The pneumatic dental sander according to claim 5, wherein: the connector (64) and the sleeve (75) are mutually clamped, and the connector (64) and the sleeve (75) are connected and separated through pushing and pulling.
7. A pneumatic dental sander as set forth in claim 1, wherein: the inner wall of the coil (63) is fixedly provided with a spiral sheet (65), and the length direction of the spiral sheet (65) is consistent with the length direction of the coil (63).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111628886.0A CN114099015B (en) | 2021-12-28 | 2021-12-28 | Pneumatic sand blasting machine for dentistry |
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| CN202111628886.0A CN114099015B (en) | 2021-12-28 | 2021-12-28 | Pneumatic sand blasting machine for dentistry |
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| CN114099015B true CN114099015B (en) | 2024-01-16 |
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| Publication number | Publication date |
|---|---|
| CN114099015A (en) | 2022-03-01 |
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