CN210228345U

CN210228345U - Turbine mobile phone with needle locking device

Info

Publication number: CN210228345U
Application number: CN201821797767.1U
Authority: CN
Inventors: Hua Yang; 杨华
Original assignee: Best Deyou Medical Equipment Guangzhou Co ltd
Current assignee: Best Deyou Medical Equipment Guangzhou Co ltd
Priority date: 2018-11-02
Filing date: 2018-11-02
Publication date: 2020-04-03
Anticipated expiration: 2028-11-02

Abstract

The utility model discloses a turbine cell-phone with lock needle ware, which comprises a bracket, the thimble, needle cover and sleeve, along radially seting up the through-hole of mutual adaptation on the end of thimble and the sleeve, the inside of two through-holes is equipped with fixed needle jointly, fixed needle is hollow structure, the vertical rotation in inside of fixed needle is connected with the pivot, the upper end of pivot extends to the upper end of fixed needle, the fixed first bevel gear that is equipped with of axle wall downside of pivot, the both sides inner wall of fixed needle all rotates with first bevel gear's position department of correspondence and is connected with the screw rod, two one ends that the screw rod is relative are all fixed and are equipped with second bevel gear, first bevel gear is connected with two second bevel gear meshing simultaneously, the equal threaded connection of pole wall of two screw rods has L shape kelly, the card hole has all been seted up with the position department of two. The utility model discloses can restrict the position of fixed needle in the through-hole, avoid fixed needle to drop from the sleeve.

Description

Turbine mobile phone with needle locking device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a turbine mobile phone with lock needle ware.

Background

The turbine handpiece drives the machine core to rotate at a high speed through compressed gas, so that a machine needle with a specific function is driven, and the operations of drilling, grinding and the like of a dental doctor on teeth or false teeth of a patient are realized. According to different modes of clamping the needle, the turbine hand-held machine can be divided into a needle locking type and a pressing type, and the needle locking type turbine hand-held machine locks the needle on the turbine hand-held machine through a needle locking device.

The existing needle locking device mainly fixes the ejector pin and the sleeve through the pin, but because the head of the turbine mobile phone is small in size and fine in structure, the situation that threads are not aligned easily occurs due to pin connection, the ejector pin is not arranged along the central line of the needle sleeve and the sleeve, the needle is easy to clamp unstably, the service life of the turbine mobile phone is influenced, and potential safety hazards are caused.

Through retrieval, the patent with the Chinese patent authorization number of CN106580485A discloses a turbine mobile phone with a needle locking device, which comprises a support, a thimble, a needle sleeve and a sleeve, wherein the tail end of the thimble and the sleeve are provided with through holes which are mutually matched along the radial direction, and a fixing needle is inserted into the through holes to fix the thimble and the sleeve; the fixing needle comprises a fixing part and a limiting arc, the fixing part is a cylinder, the limiting arc is an arc connected with one end of the fixing part, and the arc is matched with the outer surface of the sleeve. When the thimble and the sleeve are fixed, the fixing needle is easy to fall off from the sleeve and is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the fixing needle on the needle locking device of the turbine mobile phone is easy to fall off from the sleeve when the thimble and the sleeve are fixed, and the fixation is unstable, and providing the turbine mobile phone with the needle locking device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a turbine mobile phone with a needle locking device comprises a support, ejector pins, a needle sleeve and a sleeve, wherein the tail end of each ejector pin and the sleeve are provided with through holes which are matched with each other along the radial direction, the inner parts of the two through holes are jointly provided with a fixed needle which is of a hollow structure, the inner part of the fixed needle is vertically and rotatably connected with a rotating shaft, the upper end of the rotating shaft extends to the upper end of the fixed needle, the lower side of the shaft wall of the rotating shaft is fixedly provided with a first bevel gear, the inner walls of the two sides of the fixed needle are rotatably connected with screw rods at positions corresponding to the first bevel gear, the opposite ends of the two screw rods are fixedly provided with second bevel gears, the first bevel gear is meshed with the two second bevel gears at the same time, the rod walls of the two screw rods are in threaded connection with L-shaped clamping rods, and the positions of the two sides of, one end of each of the two L-shaped clamping rod horizontal portions penetrates through the corresponding clamping hole and extends outwards, and a limiting ring is fixedly arranged on the upper side of the outer wall of the fixing needle.

Preferably, the upper end of the rotating shaft is fixedly provided with a pull ring.

Preferably, the upper end and the lower end of the rotating shaft are rotatably connected with the inner sides of the upper end and the lower end of the fixed needle through first rolling bearings.

Preferably, one end of each screw rod, which deviates from the other end of each screw rod, is rotatably connected with the inner walls of the two sides of the fixed needle through a second rolling bearing.

Preferably, the limiting ring and the L-shaped clamping rod are both made of stainless steel.

Preferably, the distance between the limiting ring and the L-shaped clamping rod is matched with the diameter of the sleeve.

Compared with the prior art, the utility model provides a turbine cell-phone with lock needle ware possesses following beneficial effect:

1. this turbine cell-phone with lock needle ware, through the cooperation of setting up through-hole and fixed needle on thimble and sleeve, can fix thimble and telescopic position, make thimble and sleeve can not take place the dislocation, the crooked situation of thimble, through setting up the pivot on fixed needle, it can drive first bevel gear rotatory to rotate the pivot, first bevel gear drives two second bevel gear rotations simultaneously, thereby can release two L shape kellies from the inside in card hole, and then can restrict the position of fixed needle in the through-hole, avoid fixed needle to drop from the sleeve.

2. This turbine cell-phone with lock needle ware through the spacing ring of setting on the fixed needle outer wall, can provide a holding power for the fixed needle, through setting up at the epaxial pull ring of commentaries on classics, is convenient for the operator to take fixed needle and rotatory pivot.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can restrict the position of fixed needle in the through-hole, avoid fixed needle to drop from the sleeve.

Drawings

Fig. 1 is a schematic structural view of a turbine handpiece with a needle locking device according to the present invention;

FIG. 2 is a schematic structural view of a fixing pin;

fig. 3 is an enlarged view of a portion a of fig. 2.

In the figure: the device comprises a support 1, a thimble 2, a thimble 3, a sleeve 4, a through hole 5, a fixed needle 6, a rotating shaft 7, a first bevel gear 8, a screw rod 9, a second bevel gear 10, an L-shaped clamping rod 11, a pull ring 12 and a limit ring 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a turbine mobile phone with a needle locking device comprises a support 1, an ejector pin 2, a needle sheath 3 and a sleeve 4, all of which are structures in a reference document, and are not described herein in detail, through holes 5 are radially formed in the end of the ejector pin 2 and the sleeve 4, the through holes 5 are mutually matched, a fixing pin 6 is commonly disposed inside the two through holes 5, the fixing pin 6 is not disposed in the through hole 5, in order to show the position of the through hole 5, the fixing pin 6 is of a hollow structure, a rotating shaft 7 is vertically and rotatably connected inside the fixing pin 6, upper and lower ends of the rotating shaft 7 are rotatably connected with inner sides of the upper and lower ends of the fixing pin 6 through a first rolling bearing, the upper end of the rotating shaft 7 extends to the upper end of the fixing pin 6, a pull ring 12 is fixedly disposed on the upper end of the rotating shaft 7, so that an operator can take the fixing pin 6 and rotate the rotating, the inner walls of two sides of the fixed needle 6 are rotatably connected with screw rods 9 at positions corresponding to the first bevel gear 8, one ends of the two screw rods 9, which are deviated from each other, are rotatably connected with the inner walls of two sides of the fixed needle 6 through second rolling bearings, one ends of the two screw rods 9, which are opposite to each other, are fixedly provided with second bevel gears 10, the first bevel gear 8 is meshed with the two second bevel gears 10 at the same time, the rod walls of the two screw rods 9 are in threaded connection with L-shaped clamping rods 11, clamping holes are formed at positions corresponding to the positions of the two L-shaped clamping rods 11 at two sides of the fixed needle 6, the length of the L-shaped clamping rod 11 can be designed according to specific conditions, only the L-shaped clamping rod 11 needs to be put into the clamping holes, so that a certain limiting effect can be achieved on the L-shaped clamping rod 11, one ends of the horizontal parts of the two L-shaped clamping rods 11 respectively penetrate through the insides of the two clamping holes, can provide a holding power for fixing needle 6, spacing ring 13 and L shape kelly 11 all adopt the stainless steel to make, and the distance between spacing ring 13 and the L shape kelly 11 matches with sleeve 4's diameter and suits, can be with the more steady installation of fixing needle 6 on sleeve 4.

The utility model discloses in, during the use, through the cooperation of setting up through-hole 5 and fixed needle 6 on thimble 2 and sleeve 4, can fix thimble 2 and sleeve 4's position, make thimble 2 and sleeve 4 can not take place the dislocation, the crooked situation of thimble 2, through setting up pivot 7 on fixed needle 6, it is rotatory that pivot 7 can drive first bevel gear 8 to rotate, first bevel gear 8 drives two second bevel gear 9 simultaneously rotatory, thereby can make two screw rods 9 release two L shape kellies 11 from the inside in card hole, and then can restrict the position of fixed needle 6 in through-hole 5, avoid fixed needle 6 to drop from sleeve 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A turbine mobile phone with a needle locking device comprises a support (1), a thimble (2), a needle sleeve (3) and a sleeve (4), and is characterized in that through holes (5) which are mutually matched are radially formed in the tail end of the thimble (2) and the sleeve (4), a fixing needle (6) is jointly arranged in the two through holes (5), the fixing needle (6) is of a hollow structure, a rotating shaft (7) is vertically and rotatably connected in the fixing needle (6), the upper end of the rotating shaft (7) extends to the upper end of the fixing needle (6), a first bevel gear (8) is fixedly arranged on the lower side of the shaft wall of the rotating shaft (7), screw rods (9) are rotatably connected at positions corresponding to the inner walls of the two sides of the fixing needle (6) and the first bevel gear (8), and a second bevel gear (10) is fixedly arranged at one end, opposite to the two screw rods (9), first bevel gear (8) are simultaneously with two second bevel gear (10) meshing connection, two the equal threaded connection of pole wall of screw rod (9) has L shape kelly (11), the both sides of fixed needle (6) and two the card hole has all been seted up to the position department that corresponds of L shape kelly (11), two the one end of L shape kelly (11) horizontal part passes two respectively the inside in card hole outwards extends, the fixed spacing ring (13) that is equipped with of outer wall upside of fixed needle (6).

2. The turbine handpiece with the needle locking device is characterized in that the upper end of the rotating shaft (7) is fixedly provided with a pull ring (12).

3. The turbine handpiece with the needle locking device according to claim 1, wherein the upper end and the lower end of the rotating shaft (7) are rotatably connected with the inner sides of the upper end and the lower end of the fixed needle (6) through first rolling bearings.

4. The turbine handpiece with the needle locking device according to claim 1, wherein the two ends of the screw rods (9) which are away from each other are rotatably connected with the inner walls of the two sides of the fixed needle (6) through second rolling bearings.

5. The turbine handpiece with the needle locker as recited in claim 1, characterized in that the limiting ring (13) and the L-shaped clamping rod (11) are made of stainless steel.

6. The turbine handpiece with the needle locker as claimed in claim 1, characterized in that the distance between the stop collar (13) and the L-shaped catch lever (11) is adapted to the diameter of the sleeve (4).