阅读说明：本技术 一种磨头快速锁紧的牙科弯机 (Dental bending machine with grinding head capable of being locked quickly ) 是由 黄家炽 于 2020-04-23 设计创作，主要内容包括：本发明公开了一种磨头快速锁紧的牙科弯机,包括机头,机头包括壳体及机芯,机芯包括磨头,机芯收容于壳体,磨头快速锁紧的牙科弯机还包括锁紧结构,锁紧结构包括推块,推块滑动安装于壳体,推块设有锁紧孔,锁紧孔包括小端及大端,小端与大端连通,磨头收容于小端时,磨头与壳体锁定,推块相对壳体移动使磨头从小端移动至大端时,磨头与壳体解锁,磨头能够脱离壳体实现更换,当推块相对壳体移动使磨头从大端移动至小端时,磨头与壳体快速锁定,操作简单。(The invention discloses a dental bending machine with a quickly locked grinding head, which comprises a machine head, wherein the machine head comprises a shell and a machine core, the machine core comprises a grinding head, the machine core is accommodated in the shell, the dental bending machine with the quickly locked grinding head further comprises a locking structure, the locking structure comprises a push block, the push block is slidably mounted in the shell, the push block is provided with a locking hole, the locking hole comprises a small end and a large end, the small end is communicated with the large end, the grinding head is locked with the shell when the grinding head is accommodated in the small end, the push block moves relative to the shell to enable the grinding head to move from the small end to the large end, the grinding head is unlocked with the shell, the grinding head can be separated from the shell to realize replacement, when the push block moves relative to the shell to enable the grinding.)

1. The utility model provides a dentistry bender of bistrique quick locking, includes the aircraft nose, the aircraft nose includes casing and core, the core includes the bistrique, the core accept in casing, its characterized in that: the dental bending machine with the grinding head locked quickly further comprises a locking structure, the locking structure comprises a push block, the push block is slidably mounted on the shell, a locking hole is formed in the push block, the locking hole comprises a small end and a large end, the small end is communicated with the large end, the grinding head is contained in the small end, the grinding head is locked with the shell, the push block is opposite to the shell, the shell moves to enable the grinding head to move from the small end to the large end, the grinding head is unlocked with the shell, and the grinding head can be separated from the shell to achieve replacement.

2. The dental bender with a quick locking grinding head according to claim 1, wherein: the locking hole is gourd-shaped.

3. The dental bender with a quick locking grinding head according to claim 1, wherein: the shell is provided with a sliding groove and an accommodating hole, the sliding groove is communicated with the accommodating hole, the grinding head is accommodated in the accommodating hole, and the push block is slidably installed in the sliding groove.

4. The dental bender with a quick locking grinding head according to claim 3, wherein: the extending direction of the sliding groove is perpendicular to the extending direction of the accommodating hole.

5. The dental bender with a quick locking grinding head according to claim 3, wherein: the locking structure comprises a limiting part, the push block is provided with a fixing hole, the shell is provided with a limiting groove, the limiting part is fixed with the fixing hole and extends into the limiting groove, the extending direction of the limiting groove is the same as that of the sliding groove, and the limiting groove limits the moving distance of the push block to prevent the push block from being separated from the shell.

6. The dental bender with a quick locking grinding head according to claim 1, wherein: the locking structure further comprises an elastic piece, and two ends of the elastic piece are respectively abutted to the shell and the push block.

7. The dental bender with quick locking grinding head according to claim 6, characterized in that: the elastic piece is a spring.

8. The dental bender with quick locking grinding head according to claim 7, characterized in that: the shell is provided with an accommodating hole, the push block comprises a guide post, and the elastic piece is sleeved on the guide post and is partially accommodated in the accommodating hole.

9. The dental bender with a quick locking grinding head according to claim 1, wherein: the machine core further comprises a bearing and a main shaft, the outer surface of the main shaft is sleeved with the bearing, the grinding head is contained in the main shaft, the machine head further comprises a mounting cover, the bearing and the main shaft are located in the shell, and the mounting cover is fixed at the end part of the shell to prevent the bearing and the main shaft from being separated from the shell.

10. The dental bender with a quick locking grinding head according to claim 1, wherein: the dental bending machine with the grinding head locked quickly further comprises a bending machine main body, the machine head further comprises a middle transmission shaft, a flange and a fastener, the middle transmission shaft is contained in the shell and matched with the bending machine main body, the flange is fixed to the shell, and the fastener is matched with the flange and fixed to the bending machine main body.

Technical Field

The invention relates to medical instruments, in particular to a dental bending machine with a grinding head locked quickly.

Background

The dental handpiece is the most common medical instrument in the dental industry and is divided into a high-speed dental handpiece and a low-speed dental handpiece, the rotating speed of the high-speed dental handpiece reaches 35-42 ten thousand revolutions per minute, and the dental handpiece is mainly used for treatment and repair such as punching, cutting and the like; the low-speed dental handpiece is mainly used for drilling, grinding and cutting treatment. The low-speed mobile phone is divided into a straight machine and a bending machine, wherein the straight machine is used for grinding and polishing and is mainly used for external treatment of the mouth, and the bending machine is mainly used for internal treatment of the mouth.

Present dental handpiece is mostly the bender, and current dental low-speed curved handpiece has two kinds of lock needle structures, and first kind is the slider to press down locking structure, and the second kind is plectrum locking structure, and two kinds of mechanisms all have the lock needle structure malfunctioning, lead to the condition such as the slip-off needle to appear in the course of the work, and be difficult for finding the screens when changing the bistrique, it is not high to change bistrique efficiency.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a dental bending machine with a grinding head which is convenient to replace and can be locked quickly.

The purpose of the invention is realized by adopting the following technical scheme:

the utility model provides a dentistry bender of bistrique quick locking, includes the aircraft nose, the aircraft nose includes casing and core, the core includes the bistrique, the core accept in the casing, the dentistry bender of bistrique quick locking still includes locking structure, locking structure includes the ejector pad, ejector pad slidable mounting in the casing, the ejector pad is equipped with the locking hole, the locking hole includes tip and main aspects, the tip with the main aspects intercommunication, the bistrique accept in during the tip, the bistrique with the casing locking, the ejector pad is relative the casing removes and makes the bistrique is followed the tip removes extremely during the main aspects, the bistrique with the casing unblock, the bistrique can break away from the casing realizes changing.

Further, the locking hole is gourd-shaped.

Further, the shell is provided with a sliding groove and an accommodating hole, the sliding groove is communicated with the accommodating hole, the grinding head is accommodated in the accommodating hole, and the push block is slidably mounted in the sliding groove.

Further, the extending direction of the sliding groove is perpendicular to the extending direction of the accommodating hole.

Further, the locking structure includes a limiting part, the push block is provided with a fixing hole, the housing is provided with a limiting groove, the limiting part is fixed with the fixing hole and extends into the limiting groove, the extending direction of the limiting groove is the same as the extending direction of the sliding groove, and the limiting groove limits the moving distance of the push block to prevent the push block from separating from the housing.

Furthermore, the locking structure further comprises an elastic piece, and two ends of the elastic piece are respectively abutted to the shell and the push block.

Further, the elastic member is a spring.

Furthermore, the shell is provided with an accommodating hole, the push block comprises a guide post, and the elastic piece is sleeved on the guide post and is partially accommodated in the accommodating hole.

Further, the machine core further comprises a bearing and a main shaft, the outer surface of the main shaft is sleeved with the bearing, the grinding head is contained in the main shaft, the machine head further comprises a mounting cover, the bearing and the main shaft are located in the shell, and the mounting cover is fixed at the end part of the shell to prevent the bearing and the main shaft from being separated from the shell.

Further, the dental bending machine with the grinding head locked fast further comprises a bending machine main body, the machine head further comprises a middle transmission shaft, a flange and a fastener, the middle transmission shaft is contained in the shell and matched with the bending machine main body, the flange is fixed with the shell, and the fastener is matched with the flange and fixed with the bending machine main body.

Compared with the prior art, the locking structure of the dental bender with the rapidly locked grinding head comprises the push block, the push block is slidably mounted on the shell, the push block is provided with the locking hole, the locking hole comprises the small end and the large end, the small end is communicated with the large end, the grinding head is locked with the shell when the grinding head is accommodated in the small end, the push block moves relative to the shell to enable the grinding head to move from the small end to the large end, the grinding head is unlocked with the shell, the grinding head can be separated from the shell to achieve replacement, when the push block moves relative to the shell to enable the grinding head to move from the large end to the small end, the grinding head is rapidly locked with the.

Drawings

Fig. 1 is a perspective view of a dental bender with a quick lock grater according to the present invention;

fig. 2 is a perspective view of a handpiece of the dental bending machine with a quick lock grater of fig. 1;

FIG. 3 is an exploded view of the handpiece of FIG. 2;

FIG. 4 is a perspective view of a housing of the handpiece of FIG. 3;

FIG. 5 is a perspective view of a push block of the handpiece of FIG. 3;

FIG. 6 is a cross-sectional view of the handpiece of FIG. 2;

fig. 7 is an enlarged view at the head a of fig. 6.

In the figure: 10. a bender main body; 20. a machine head; 21. a housing; 210. mounting holes; 211. a limiting groove; 212. a chute; 213. an accommodating hole; 22. a middle transmission shaft; 23. a flange; 24. a fastener; 25. a movement; 250. a bearing; 251. grinding heads; 2510. a fixed end; 26. installing a cover; 27. a locking structure; 270. a push block; 2701. a locking hole; 2702. a small end; 2703. a large end; 2704. a fixing hole; 2705. a guide post; 271. an elastic member; 272. and a limiting member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 7, a dental bending machine for rapidly locking a grinding head according to the present invention includes a bending machine body 10 and a head 20.

Handpiece 20 includes housing 21, central shaft 22, flange 23, fasteners 24, cartridge 25, mounting cap 26, and locking structure 27.

The housing 21 has a mounting hole 210, a stopper groove 211, a slide groove 212, and a receiving hole 213. The mounting hole 210 and the limiting groove 211 are disposed at the bottom of the sliding slot 212, and the sliding slot 212 is communicated with the mounting hole 210 and the limiting groove 211. The mounting hole 210 extends in a direction perpendicular to the direction in which the slide groove 212 extends. The extending direction of the limiting groove 211 is the same as the extending direction of the sliding groove 212. The receiving hole 213 is located at one side of the limiting groove 211 and the extending direction of the receiving hole 213 is the same as the extending direction of the limiting groove 211.

The fastener 24 is a lock nut. Cartridge 25 includes bearing 250, spindle, and grater 251. The main shaft is sleeved with the bearing 250, and the grinding head 251 is accommodated in the main shaft. The end of the grinding head 251 is provided with a fixed end 2510, and the fixed end 2510 is provided with a groove. The mounting cap 26 is a nut cap.

The locking structure 27 includes a pushing block 270, an elastic member 271 and a limiting member 272. The pushing block 270 has a locking hole 2701 and a fixing hole 2704. The locking bore 2701 includes a small end 2702 and a large end 2703, the diameter of the large end 2703 being greater than the diameter of the small end 2702. The small end 2702 communicates with the large end 2703. The locking aperture 2701 is generally gourd-shaped. The fixing hole 2704 is a screw hole. The guide column 2705 is located at the bottom of the pushing block 270, and the extending direction of the guide column 2705 is the same as the extending direction of the sliding chute 212. The elastic member 271 is a spring. The position-limiting member 272 is a screw.

When the dental bending machine with the grinding head locked quickly is assembled, the bearing 250 is sleeved outside the main shaft, the grinding head 251 is accommodated in the main shaft to form the movement 25, and the movement 25 is accommodated in the mounting hole 210 of the shell 21. The mounting cap 26 is screwed to the end of the housing 21. The mounting cap 26 prevents the bearing 250 from being detached from the housing 21. The push block 270 is slidably mounted to the slide groove 212 of the housing 21. The elastic member 271 has one end fitted over the guide post 2705 and the other end received in the receiving hole 213. The position-limiting member 272 is fixed in the fixing hole 2704 of the pushing block 270 and extends into the position-limiting groove 211. The limiting member 272 slides in the limiting groove 211 to control the sliding distance of the pushing block 270 relative to the housing 21 to prevent the pushing block 270 from being separated from the housing 21. The fixed end 2510 of the grinding head 251 is positioned in the locking hole 2701 at this time. The intermediate transmission shaft 22 is accommodated in the housing 21 and engaged with the bender body 10. The flange 23 is fixed to the housing 21, and the fastening member 24 is engaged with the flange 23 and fixed to the bender body 10. At this time, the fixed end 2510 of the grinding head 251 is positioned at the small end 2702, and the grinding head 251 is in a locked state.

When the grinding heads 251 need to be replaced, the push block 270 is pushed, the push block 270 slides on the slide grooves 212 of the housing 21, and when the push block 270 is pushed forward, the fixed ends 2510 of the grinding heads 251 slide from the small ends 2702 to the large ends 2703. At this time, the grinding head 251 is unlocked from the housing 21. The grinding head 251 can be withdrawn from the main shaft of the bending machine core 25 for replacement. When the pushing block 270 is released, the elastic member 271 pushes the pushing block 270 back, and the newly replaced grinding head 251 moves from the large end 2703 to the small end 2702, so that the operation is convenient.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.