CN220046109U - Safe drill point that stops - Google Patents

Abstract

The utility model provides a safe stop drill point, which relates to the technical field of drill points, and comprises a handle, a motor module and a drill bit, wherein the motor module is arranged at one end of the handle, the drill bit is assembled at the output end of the motor module, a speed reducing structure is arranged at the connecting part of the drill bit and the motor module, the speed reducing structure comprises a connecting frame and a connecting shaft, one end of the connecting shaft is assembled on the output shaft of the motor module, the other end of the connecting shaft is fixedly connected with a connecting rod, one end of the connecting rod, which is far away from the connecting shaft, is provided with a mounting hole, a shaft lever is arranged in the mounting hole, a spring is assembled between the shaft lever and the mounting hole, the shaft lever and the drill bit are assembled, a brake disc is fixedly sleeved on the surface of the shaft lever, one end of the connecting frame is fixedly connected with the motor module, and a brake ring is fixedly connected with the other end of the connecting frame, so that the drill bit is rapidly caused to stop rotating by friction between the brake disc and the brake ring, and the time of inertial rotation of the drill bit is reduced as much as possible, and the risk of hurting people by inertial rotation of the drill bit is reduced as much as possible.

Description

Safe drill point that stops

Technical Field

The utility model relates to the technical field of drill points, in particular to a safe stop drill point.

Background

When the teeth are diseased, the diseased part of the teeth needs to be removed and then repaired, and as the teeth are very hard, a drill needle is needed to drill the teeth, and the drill needle is a metal drill bit for drilling the teeth.

The inventors found that in daily work: the drill point is high-speed rotation and polishes the drilling to the tooth, because the oral cavity inner space is narrow and small, because the inertia factor leads to the drill point still to need to rotate for a period of time when the drill point stops, touch some patient unconscious disorder again just very easily because the drill point can not in time stop to bore wounded patient's oral cavity.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a safe stop drill point.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a safety stop drill point, includes handle, motor module and drill bit, motor module installs the one end at the handle, the drill bit is assembled on motor module's output, drill bit and motor module junction is provided with the speed reduction structure, the speed reduction structure includes link and even axle, the one end of even axle is assembled on motor module's output shaft, the other end fixedly connected with connecting rod of even axle, the mounting hole has been seted up to the one end of connecting rod keeping away from even axle, the inside of mounting hole is equipped with the axostylus axostyle, be equipped with the spring between axostylus axostyle and the mounting hole, axostylus axostyle and drill bit assembly, the fixed surface of axostylus axostyle cover has the brake disc, the one end and the motor module of link are fixed, the other end fixedly connected with brake ring of link, the brake disc is at the inside contact brake ring of brake ring.

The effects achieved by the components are as follows: when the dental drill bit is used, the handle is held by hand, then the motor module is started (wherein the motor module mainly comprises a motor and a motor control circuit, the inner construction principle of the dental drill bit is not repeated here as a product sold in the market), the drill bit is driven to drill holes on teeth to remove focus parts by utilizing the rotation of the motor, when the teeth are required to be drilled, the drill bit is driven by the drill bit to drive the shaft rod to extrude the spring to slide along the central axis direction in the connecting rod by extruding the teeth, so that the brake disc is not contacted with the teeth when the drilling is required to be stopped, the shaft rod is driven by the elasticity of the spring to slide in the mounting hole, so that the brake disc is contacted with the brake ring, the drill bit is rapidly driven to stop rotating by friction between the brake disc and the brake ring, so that the time of the rotation of the drill bit due to inertia is reduced as much as possible, and the risk of hurting people by the inertia rotating the drill bit is reduced as much as possible.

Preferably, the inner wall of the mounting hole is provided with a limit square groove, a square sheet is clamped in the limit square groove, and the square sheet is fixed on the surface of the shaft lever.

The effects achieved by the components are as follows: the shaft lever is fixed in the mounting hole and the limit square groove by the square piece, and further the shaft lever is prevented from rotating in the mounting hole in the process of connecting the shaft lever with the mounting hole.

Preferably, a baffle disc is arranged at one end of the connecting rod, and the baffle disc is fixed at the port of the connecting rod by means of a bolt.

The effects achieved by the components are as follows: the connecting rod is prevented from sliding out of the connecting rod by using the installation baffle plate.

Preferably, the brake disc is of a circular truncated cone-shaped structure, and a circular truncated cone groove matched with the brake disc is formed in the brake ring.

The effects achieved by the components are as follows: the brake disc with the round table shape and the brake ring with the corresponding round table groove are arranged inside the brake disc with the round table shape can have larger contact area.

Preferably, the drill bit and the shaft are detachably assembled by means of a connecting structure.

The effects achieved by the components are as follows: the connecting structure is utilized to conveniently replace different types of drill bits.

Preferably, the connection structure comprises a triangular hole formed in a drill bit port, a triangular prism is slidably inserted into the triangular hole, one end of the triangular prism is fixed with the shaft rod, a nut is rotationally connected to the surface of the drill bit, and the nut is sleeved on the surface of the shaft rod in a threaded mode.

The effects achieved by the components are as follows: the triangular hole and the triangular prism are assembled to avoid rotation between the drill bit and the shaft lever, and the nut is screwed on the surface of the shaft lever to further avoid separation between the shaft lever and the drill bit.

Compared with the prior art, the utility model has the advantages and positive effects that,

according to the utility model, when the drilling is required to be stopped, the drill bit is not contacted with teeth, so that the elastic force of the spring pushes the shaft rod to slide in the mounting hole, the brake disc is contacted with the brake ring, and the friction between the brake disc and the brake ring is utilized to rapidly promote the drill bit to stop rotating, so that the time of the drill bit due to inertial rotation is reduced as much as possible, and the risk of hurting people due to inertial rotation of the drill bit is reduced as much as possible.

Drawings

Fig. 1 is a schematic perspective view of a safety stop drill point according to the present utility model;

FIG. 2 is a schematic view showing a partially disassembled structure of a safety stop drill point according to the present utility model;

fig. 3 is a schematic view of a partial cross-sectional structure of a safety stop drill point according to the present utility model.

Legend description: 1. a handle; 2. a motor module; 3. a drill bit; 4. a deceleration structure; 41. a connecting shaft; 42. a connecting rod; 43. a mounting hole; 44. a shaft lever; 45. a brake disc; 46. a brake ring; 47. a connecting frame; 48. a baffle disc; 49. a spring; 5. a connection structure; 51. a triangular hole; 52. triangular prism; 53. and (3) a nut.

Detailed Description

Embodiment 1, as shown in fig. 1-3, a safety stop drill comprises a handle 1, a motor module 2 and a drill bit 3, wherein the motor module 2 is installed at one end of the handle 1, the drill bit 3 is assembled at the output end of the motor module 2, a reduction structure 4 is arranged at the connecting position of the drill bit 3 and the motor module 2, the reduction structure 4 comprises a connecting frame 47 and a connecting shaft 41, one end of the connecting shaft 41 is assembled at the output shaft of the motor module 2, the other end of the connecting shaft 41 is fixedly connected with a connecting rod 42, one end of the connecting rod 42 far away from the connecting shaft 41 is provided with a mounting hole 43, a shaft lever 44 is arranged in the mounting hole 43, a spring 49 is assembled between the shaft lever 44 and the mounting hole 43, the shaft lever 44 is assembled with the drill bit 3, a brake disc 45 is fixedly sleeved on the surface of the shaft lever 44, one end of the connecting frame 47 is fixedly connected with the motor module 2, the other end of the connecting frame 47 is fixedly connected with a brake ring 46, the brake disc 45 contacts the brake ring 46 inside the brake ring 46, when in use, the handle 1 is held by hand, then the motor module 2 is started, the drill bit 3 is driven to drill holes on teeth to remove focus parts by utilizing the rotation of the motor, when the teeth are required to be drilled, the drill bit 3 is driven by the drill bit 3 to extrude the teeth to drive the shaft rod 44 to slide along the central axis direction inside the connecting rod 42 by extruding the spring 49, so that the brake disc 45 is not contacted with the teeth, when the drilling is required to be stopped, the drill bit 3 is not contacted with the teeth, the elastic force of the spring 49 drives the shaft rod 44 to slide in the mounting hole 43, so that the brake disc 45 is contacted with the brake ring 46, the drill bit 3 is further rapidly driven to stop rotating by utilizing the friction between the brake disc 45 and the brake ring 46, the time of inertial rotation of the drill bit 3 is reduced as much as possible, the risk of hurting people by inertial rotation of the drill bit 3 is reduced as much as possible, the function that the link 47 played is to fix the brake ring 46 on the motor module 2, the spacing square groove has been seted up to the inner wall of mounting hole 43, the inside card in spacing square groove has the square piece, the surface at axostylus axostyle 44 is fixed to the square piece, the axostylus axostyle 44 utilizes the square piece to be fixed in mounting hole 43 and spacing square groove, and then still avoid axostylus axostyle 44 rotatory in mounting hole 43 with axostylus axostyle 44 in the mounting hole 43 connection process, the one end of connecting rod 42 is provided with fender dish 48, fender dish 48 is fixed in the port department of connecting rod 42 with the help of the bolt, utilize the installation fender dish 48 to have avoided connecting rod 42 to roll out connecting rod 42, the brake disc 45 is the round platform column-shaped structure, the round platform recess with brake disc 45 looks adaptation has been seted up to the inside of brake ring 46, can have great area of contact between the brake disc 45 of round platform-shaped and the inside brake ring 46 that is equipped with corresponding recess, can have great area by means of connection structure 5 detachable assembly between drill bit 3 and the axostylus axostyle 44, thereby can conveniently change different types of drill bit 3 with connection structure 5, connection structure 5 includes the triangular prism hole 51 of seting up at the port 3, the inside of hole 51 is inserted in the prism 52, the inside of hole 51 has, the triangular prism 52 has been provided with 52, and the triangular prism 52 has been prevented further between the surface 53 and the nut 53 is screwed down between the surface of the three prism 3 and the axial rod 44, and the nut 53 has avoided between the nut 53.

The utility model provides a tooth is got rid of through handheld handle 1 during the theory of operation, then start motor module 2, utilize the motor rotation to drive drill bit 3 to the tooth get rid of focus position, when needs carry out the drilling to the tooth, make drill bit 3 drive axostylus axostyle 44 along axis direction extrusion spring 49 slip inside connecting rod 42 through drill bit 3, thereby make and not contact between brake disc 45 and the brake annulus 46, when need stop drilling, with drill bit 3 and tooth contact, thereby the elasticity promotion axostylus axostyle 44 of spring 49 slides in mounting hole 43, thereby make contact between brake disc 45 and the brake annulus 46, utilize friction between brake disc 45 and the brake annulus 46 and then quick promotion drill bit 3 stop rotating, thereby reduce drill bit 3 because the time of inertial rotation as far as possible, reduce the risk that the people was injured to inertial rotation drill bit 3 as far as possible, wherein link 47 play the effect is with brake annulus 46 fixed on motor module 2, thereby make use the square piece to fix in mounting hole 43 and spacing square groove, and then still avoid 44 rotation in mounting hole 43, make use of installation and the connection process of axostylus axostyle 44, make use of installation and the annular 48 to make use of the annular connection between the corresponding connection rod 45 and the tip 3 can avoid the three-sided prism-shaped connection between the annular 45 and the annular connection rod 44 to have more convenient area between the tip 3 and the annular connection between the tip 52 and the annular connection 5 and the annular connection 45, thereby the tip has avoided between the tip has been changed between the tip 3 and the tip has more convenient and the tip has been replaced between the tip and the tip 3 and the annular groove and the tip has a bigger surface and the tip has been avoided and the tip has been made of the tip and the tip has the bigger diameter.

While the utility model has been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the utility model, as defined by the appended claims, as long as the scope of the utility model is defined by the following claims, and by the following claims, unless otherwise specified and limited by the context of the utility model; 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 utility model can be understood by those of ordinary skill in the art in a specific case.

Claims (6)

1. The utility model provides a safety stop drill point, includes handle (1), motor module (2) and drill bit (3), motor module (2) are installed in the one end of handle (1), drill bit (3) assemble on the output of motor module (2), its characterized in that: drill bit (3) and motor module (2) junction point is provided with speed reducing structure (4), speed reducing structure (4) are including link (47) and even axle (41), the one end assembly of even axle (41) is on the output shaft of motor module (2), the other end fixedly connected with connecting rod (42) of even axle (41), mounting hole (43) have been seted up to the one end that even axle (41) was kept away from to connecting rod (42), the inside of mounting hole (43) is equipped with axostylus axostyle (44), be equipped with spring (49) between axostylus axostyle (44) and mounting hole (43), axostylus axostyle (44) and drill bit (3) assembly, the fixed surface cover of axostylus axostyle (44) has brake disc (45), the one end and the motor module (2) of link (47) are fixed, the other end fixedly connected with brake ring (46) of link (47), brake disc (45) contact brake ring (46) inside brake ring (46).

2. The safety stop drill point of claim 1, wherein: the inner wall of the mounting hole (43) is provided with a limit square groove, a square sheet is clamped in the limit square groove, and the square sheet is fixed on the surface of the shaft lever (44).

3. The safety stop drill point of claim 2, wherein: one end of the connecting rod (42) is provided with a baffle disc (48), and the baffle disc (48) is fixed at the port of the connecting rod (42) by means of a bolt.

4. A safety stop drill point according to claim 3, wherein: the brake disc (45) is of a round table-shaped structure, and a round table groove matched with the brake disc (45) is formed in the brake ring (46).

5. The safety stop drill point of claim 4, wherein: the drill bit (3) and the shaft lever (44) are detachably assembled by means of a connecting structure (5).

6. The safety stop drill point of claim 5, wherein: the connecting structure (5) comprises a triangular hole (51) formed in a port of the drill bit (3), a triangular prism (52) is slidably inserted into the triangular hole (51), one end of the triangular prism (52) is fixed with the shaft rod (44), a nut (53) is rotationally connected to the surface of the drill bit (3), and the nut (53) is sleeved on the surface of the shaft rod (44) in a threaded mode.