CN209751247U - Dental handpiece motor with LED lamp capable of being replaced quickly - Google Patents

Abstract

The utility model discloses a dental handpiece motor with a rapidly replaced LED lamp, which comprises a motor body, a connecting shaft, an LED lamp chip and a 2P thimble; the connecting shaft comprises an annular mounting seat and a shaft core; the annular mounting seat is fixedly mounted at the top of the motor body; a first radial slot is formed in the side wall of the annular mounting seat, and a through hole is formed in the bottom of the first radial slot; the upper surface of the annular mounting seat is provided with a light outlet; the LED lamp chip is inserted in the first radial slot; a second radial slot is formed in the side wall of one end, fixedly connected with the connecting shaft, of the motor body, an opening is formed in the upper surface of the motor body, and the opening is communicated with the through hole in the annular mounting seat; the 2P thimble is inserted in the second radial slot, and the thimble on the 2P thimble stretches out from the opening, with the bottom electric connection of LED lamp chip. The utility model discloses conveniently dismantle and change the LED light source, alleviate the difficulty of maintenance.

Description

Dental handpiece motor with LED lamp capable of being replaced quickly

Technical Field

The utility model relates to a medical instrument technique especially relates to a dental handpiece motor of quick replacement LED lamp.

background

At present, the traditional dental operation device is provided with an erected lighting system, the system can focus light rays into the oral cavity of a patient through a reflecting mirror surface arranged on the system, but a dentist often stands in the light ray journey, so that the effectiveness of erecting a light source is greatly reduced, the dentist must often spend a lot of time to adjust the direction of the erected lighting when performing dental operation, and the efficiency of the dental operation is greatly reduced.

Aiming at the situation, the dental handpiece with the LED light source appears at home and abroad at present, but the LED bulb is complex in installation structure, complicated in steps during maintenance and replacement and inconvenient to operate. If application number 2016112423487 is the chinese utility model patent, it discloses a dental handpiece motor of easily changing LED lamp, installs at the motor upper end cover through contact pin formula LED bulb subassembly, needs to disassemble the connecting axle and just can change LED bulb subassembly, and the dismouting still is very arduous, and is consuming time long, and installs contact pin formula LED bulb subassembly at the motor upper end cover, and contact pin formula LED bulb subassembly is through changing the back many times, and the contact pin breaks easily and damages.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a dental handpiece motor with a quick-replaceable LED lamp. The utility model discloses a design connecting axle and motor body's design transformation makes the LED lamp chip install on the connecting axle, and the 2P thimble is installed on motor body, conveniently dismantles and changes the LED light source, alleviates the difficulty of maintenance.

The purpose of the utility model is realized by adopting the following technical scheme: a dental handpiece motor capable of rapidly replacing an LED lamp comprises a motor body, a connecting shaft, an LED lamp chip and a 2P thimble; the connecting shaft comprises an annular mounting seat and a shaft core fixedly connected to the top of the annular mounting seat; the annular mounting seat is fixedly mounted at the top of the motor body; a first radial slot matched with the LED lamp chip in shape is formed in the side wall of the annular mounting seat, and a through hole is formed in the bottom of the first radial slot; the upper surface of the annular mounting seat is provided with a light outlet, and the light outlet, the first radial slot and the through hole penetrate through the whole annular mounting seat; the LED lamp chips are inserted into the first radial slots; a second radial slot matched with the 2P thimble in shape is formed in the side wall of one end, fixedly connected with the connecting shaft, of the motor body, an opening communicated with the second radial slot is formed in the upper surface of the motor body, and the opening is communicated with a through hole in the annular mounting seat; the 2P thimble is inserted in the second radial slot, and the thimble on the 2P thimble extends out of the opening, and then is electrically connected with the bottom of the LED lamp chip through the through hole on the annular mounting seat.

Furthermore, the surface of the LED lamp chip is provided with a limiting clamping groove for preventing the LED lamp chip from axially moving.

further, the dental handpiece motor further comprises a front cover used for preventing the LED lamp chip from moving radially, and the front cover is buckled on the periphery of the annular mounting seat of the connecting shaft.

Further, the dental handpiece motor further comprises an insulated electronic wire and a circuit board; the circuit board is arranged at the bottom of the motor body; one end of the insulated electronic wire is fixedly connected with the bottom of the 2P thimble; the other end of the insulated electronic wire is fixedly connected with the circuit board.

Further, the insulated electronic wire is an OK wire.

Further, the dental handpiece motor also comprises an outer shell sleeved on the outer wall of the motor body; the inner wall of the outer shell is concavely provided with a wire groove for installing an insulated electronic wire.

Further, the dental handpiece motor also comprises a needle seat, and the needle seat is fixed at the bottom of the motor body.

Further, the annular mounting seat is fixedly mounted at the top of the motor body through a fastener.

compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model discloses a design connecting axle and motor body's design transformation makes the LED lamp chip install on the connecting axle, and the 2P thimble is installed on motor body, conveniently dismantles and changes the LED light source, alleviates the difficulty of maintenance. And, the utility model discloses separate out the 2P thimble from LED bulb subassembly to direct fixed connection need not to extract the 2P thimble at the change LED wick piece on the motor body, is favorable to protecting the thimble body like this, prevents to relapse the plug with the LED wick piece simultaneously, damages the 2P thimble.

(2) In order not to influence the volume and the shape of dental handpiece motor, this application is through setting up the shell body, and the shell body inner wall is equipped with a line trench, and the insulating electronic wire that will connect 2P thimble and circuit board is hidden in the casing, walks the line convenience, does not need additionally to walk the line part, and does not influence the doctor and hand, does not need to change the shell body shape.

(3) The plug pin seat is arranged at the bottom of the motor body, so that when the LED lamp chip is replaced, the plug pin seat does not need to be plugged, the damage of a plug pin is prevented, and the service life of the dental handpiece motor is prolonged.

Drawings

FIG. 1 is a schematic view of a dental handpiece motor with a quick-replaceable LED lamp according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a dental handpiece motor;

FIG. 3 is a schematic structural diagram of a motor body and a motor body;

FIG. 4 is a schematic structural view of a connecting shaft;

FIG. 5 is a schematic structural diagram of an LED lamp chip;

Fig. 6 is a schematic structural diagram of the outer shell.

In the figure: 1. a motor body; 11. a second radial slot; 12. an opening; 2. a connecting shaft; 21. an annular mounting seat; 211. a first radial slot; 212. a through hole; 213. a light exit hole; 22. a shaft core; 3. an LED lamp chip; 31. a limiting clamping groove; 4. 2P thimble; 5. a front cover; 6. an insulated electronic wire; 7. a circuit board; 8. an outer housing; 81. a wire slot; 9. a needle seat; 10. a fastener.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-2 and 4, a dental handpiece motor for rapidly replacing an LED lamp comprises a motor body 1, a connecting shaft 2, an LED lamp chip 3 and a 2P thimble 4; the connecting shaft comprises an annular mounting seat 21 and a shaft core 22 fixedly connected to the top of the annular mounting seat; the annular mounting seat is fixedly mounted at the top of the motor body; a first radial slot 211 matched with the LED lamp chip in shape is formed in the side wall of the annular mounting seat, and a through hole 212 is formed in the bottom of the first radial slot; the upper surface of the annular mounting seat is provided with a light outlet hole 213, and the light outlet hole, the first radial slot and the through hole penetrate through the whole annular mounting seat; the LED lamp chips are inserted into the first radial slots; a second radial slot 11 matched with the 2P thimble in shape is formed in the side wall of one end, fixedly connected with the connecting shaft, of the motor body, and an opening 12 communicated with the second radial slot is formed in the upper surface of the motor body and is communicated with a through hole in the annular mounting seat; the 2P thimble is inserted in the second radial slot, and the thimble on the 2P thimble extends out of the opening, and then is electrically connected with the bottom of the LED lamp chip through the through hole on the annular mounting seat.

As a further preferable scheme, as shown in fig. 5, a limiting slot 31 for preventing the LED lamp chip from axially shifting is disposed on the surface of the LED lamp chip. The dental handpiece motor also comprises a front cover 5 for preventing the LED lamp chip from moving radially, and the front cover is buckled on the periphery of the annular mounting seat of the connecting shaft. The limiting clamping groove and the outer cover are arranged to be beneficial to limiting of the LED lamp chip, and the light emitting angle of the LED lamp chip is guaranteed, so that the efficiency of dentists in dental operation is improved.

As a further preferred option, as shown in fig. 3, the dental handpiece motor further comprises an insulated electrical wire 6 and a circuit board 7; the circuit board is arranged at the bottom of the motor body; one end of the insulated electronic wire is fixedly connected with the bottom of the 2P thimble; the other end of the insulated electronic wire is fixedly connected with the circuit board. As shown in fig. 6, the dental handpiece motor further comprises an outer shell 8 which is sleeved on the outer wall of the motor body; the inner wall of the outer shell is concavely provided with a wire groove 81 for installing an insulated electronic wire. In order not to influence the volume and the shape of dental handpiece motor, this application is through setting up the shell body, and the shell body inner wall is equipped with a line trench, and the insulating electronic wire that will connect 2P thimble and circuit board is hidden in the casing, walks the line convenience, does not need additionally to walk the line part, and does not influence the doctor and hand, does not need to change the shell body shape. Preferably, the insulated electronic wire is a 30# OK wire.

as a further preferable scheme, the motor of the dental handpiece further comprises a plug-in socket 9 which is fixed at the bottom of the motor body. The plug pin seat is arranged at the bottom of the motor body, so that when an LED lamp chip is replaced, the plug pin seat is not required to be plugged, the damage of a plug pin is prevented, and the service life of the motor of the dental handpiece is prolonged.

As a further preferred solution, the annular mounting seat is fixedly mounted on the top of the motor body by means of fasteners 10. The fasteners are commonly known as screws.

the dental handpiece motor assembling process of the application is as follows:

(1) Welding one end of an insulated electronic wire at the bottom of the 2P thimble, and fixedly connecting the other end of the insulated electronic wire to the circuit board for controlling the opening and the electrical connection of the LED lamp chip;

(2) Inserting the 2P thimble into a second radial slot of the motor body, so that the 2P thimble extends out of the opening of the motor body and is used for electrically connecting with the LED lamp chip;

(3) Sleeving the outer shell on the surface of the motor body, and accommodating the insulated electronic wire in the wire slot;

(4) fixing the connecting shaft on the surface of the motor body through screws, and then inserting the LED lamp chips into first radial slots of the connecting shaft;

(5) Clamping the front cover on an annular mounting seat of the connecting shaft through a buckle structure; and finally, mounting the needle seat.

After the dental handpiece motor is assembled, the LED lamp chip is directly pulled out only by detaching the front cover without further detaching the connecting shaft, and then the LED lamp chip is detached from the motor body, so that the LED light source is conveniently detached and replaced, and the maintenance difficulty is reduced; and, the utility model discloses separate out the 2P thimble from LED bulb subassembly to direct fixed connection need not to extract the 2P thimble at the change LED wick piece on the motor body, is favorable to protecting the thimble body like this, prevents to relapse the plug with the LED wick piece simultaneously, damages the 2P thimble.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (8)

1. a dental handpiece motor capable of rapidly replacing an LED lamp is characterized by comprising a motor body, a connecting shaft, an LED lamp chip and a 2P thimble; the connecting shaft comprises an annular mounting seat and a shaft core fixedly connected to the top of the annular mounting seat; the annular mounting seat is fixedly mounted at the top of the motor body; a first radial slot matched with the LED lamp chip in shape is formed in the side wall of the annular mounting seat, and a through hole is formed in the bottom of the first radial slot; the upper surface of the annular mounting seat is provided with a light outlet, and the light outlet, the first radial slot and the through hole penetrate through the whole annular mounting seat; the LED lamp chips are inserted into the first radial slots; a second radial slot matched with the 2P thimble in shape is formed in the side wall of one end, fixedly connected with the connecting shaft, of the motor body, an opening communicated with the second radial slot is formed in the upper surface of the motor body, and the opening is communicated with a through hole in the annular mounting seat; the 2P thimble is inserted in the second radial slot, and the thimble on the 2P thimble extends out of the opening, and then is electrically connected with the bottom of the LED lamp chip through the through hole on the annular mounting seat.

2. A dental handpiece motor for rapidly replacing an LED lamp as in claim 1, wherein the LED lamp chip has a limiting slot on its surface for preventing the LED lamp chip from axially moving.

3. The dental handpiece motor for rapidly replacing an LED lamp as claimed in claim 1, further comprising a front cover for preventing the LED lamp chip from moving radially, wherein the front cover is snap-fitted to a periphery of the annular mounting seat of the connecting shaft.

4. A quick-change LED light dental handpiece motor as in claim 1, further comprising an insulated electrical wire and a circuit board; the circuit board is arranged at the bottom of the motor body; one end of the insulated electronic wire is fixedly connected with the bottom of the 2P thimble; the other end of the insulated electronic wire is fixedly connected with the circuit board.

5. A dental handpiece motor with a quick-change LED lamp as in claim 4, wherein the insulated electronic wire is an OK wire.

6. The dental handpiece motor with a quick-replaceable LED lamp of claim 4, further comprising an outer housing fitted over the outer wall of the motor body; the inner wall of the outer shell is concavely provided with a wire groove for installing an insulated electronic wire.

7. A dental handpiece motor with a quick-change LED lamp as in claim 1, further comprising a socket attached to the bottom of the motor body.

8. A quick-change LED light dental handpiece motor as in claim 1, wherein the annular mounting base is fixedly mounted to the top of the motor body by fasteners.