CN217040222U

CN217040222U - Bone drill with quick-replaceable head and torque force increasing function

Info

Publication number: CN217040222U
Application number: CN202121223606.3U
Authority: CN
Inventors: 钟书杰; 钟晨
Original assignee: Zhenjiang Renjie Medical Devices Co ltd
Current assignee: Zhenjiang Renjie Medical Devices Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-07-26
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a bone drill that quick change head can increase torsion, including drilling rod, drill bit, fast-assembling mechanism and anti-skidding mechanism, drilling rod lower extreme internally mounted has the fast-assembling mechanism of the quick replacement drill point of being convenient for, the drill bit is installed to the inside plug-in of fast-assembling mechanism, drilling rod upper end fixed mounting effectively improves the anti-skidding mechanism of bone drill drilling torsion. The drill bit is replaced by the quick-assembly mechanism conveniently and efficiently, the use efficiency is effectively improved, and the firmness of the bone drill in the drilling machine is increased through the anti-skidding mechanism, so that the torsion of the bone drill in drilling is increased, and the drilling effect is improved.

Description

Bone drill with quick-replaceable head and torque force increasing function

Technical Field

The utility model relates to a bone bores technical field, in particular to bone that torsion can be increased to quick-operation head bores.

Background

A power tool for use in surgery to drill a hole in a bone. The drill is suitable for providing mechanical power to carry out bone tissue surgery, and the torsion force required by the drill is different when the drill is used for drilling bones at different positions.

Patent CN201120568933.2 discloses a femoral medullary opening drill, which is characterized in that during the replacement of knee joint, when the femoral side is opened, the triangular drill tip can easily puncture the cortex of femoral intercondylar fossa, so as to guide the main drill body to drill along the femoral dissection shaft, the diameter of the auxiliary blade is larger than that of the main drill body, and the intercondylar fossa drill hole can be enlarged when screwing in the femur, so that the subsequent intramedullary rod can be smoothly inserted into the medullary cavity. The utility model has simple structure, good marrow opening capability and effect.

The limit bone drill has the following defects: 1. above-mentioned bone bores quick replacement drill bit not, if the drill bit has wearing and tearing after long-time the use, then need to change whole bone again and bore, caused the wasting of resources, the process of changing simultaneously needs a large amount of time, has reduced the practicality that the bone bored. 2. The bone drill has small torsion, and the drilling machine and the bone drill are easy to rotate relatively, so that the torsion of the bone drill is reduced, the torsion of the bone drill for drilling the bone is reduced, and the drilling effect is also reduced.

Disclosure of Invention

A primary object of the present invention is to provide a bone drill with a quick-replaceable head capable of increasing torque, which can effectively solve the problems of the prior art.

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

a bone drill with a quick-change head and torque-increasing capability comprises a drill rod, a drill bit, a quick-assembly mechanism and an anti-slip mechanism, wherein the quick-assembly mechanism convenient for quickly replacing a drill point is arranged inside the lower end of the drill rod;

the fast-assembling mechanism includes first slot, picture peg, steel bar spring and arm-tie, the first slot has been seted up to drilling rod lower extreme center inside, first spout has been seted up to first slot outer end both sides, the inside cartridge of first spout has the drill bit, the inside second slot that has seted up of the drill bit upper end left and right sides, the inside cartridge of first spout and second slot has the picture peg, the inside fixed mounting of the first spout of picture peg outer end has steel bar spring, the inside second spout that has seted up of first spout outer end drilling rod, the picture peg outside is run through the second spout and is connected with the slide, slide outer end fixed mounting has the arm-tie.

Furthermore, the anti-skid mechanism comprises a tail column, clamping grooves and surrounding edges, the tail column is fixedly mounted at the upper end of the drill rod, the clamping grooves are symmetrically formed in the inner parts of the left side and the right side of the tail column, and the surrounding edges are welded on the outer wall of the side face of the tail column; effectively improves the anti-skidding effect of the bone drill, thereby improving the torsion of the bone drill during drilling.

Furthermore, the cross section of the first slot is the same as that of the cross section of the upper end of the drill bit in shape and size, and the shape of the first slot is a regular hexagon; the drill bit is more convenient to replace.

Furthermore, the size of the cross section of the plug board is matched with that of the cross section of the second slot; the replacement of the drill bit is more convenient to fix.

Furthermore, the inserting plate is fixedly connected with one end of a steel bar spring, and the other end of the steel bar spring is fixedly connected with the side wall of the first sliding chute; the firmness of fixing the drill bit is improved.

Further, the surrounding edge is triangular prism-shaped; the anti-skidding effect of the bone drill in the rotating process is increased, and the torsion of the bone drill is improved.

Compared with the prior art, the utility model discloses following beneficial effect has: 1. when the drill bit needs to be replaced, the two side pulling plates are directly pulled outwards manually to drive the sliding plate connected at the inner end to slide outwards in the second sliding groove, the sliding plate drives the inserting plate fixedly connected at the upper side and the lower side of the inner end to slide inwards and outwards in the first sliding groove, so that the reinforcing steel bar spring fixedly arranged on the outer side wall of the extruding inserting plate is extruded to contract and deform to convert kinetic energy into elastic potential energy, the stiffness coefficient of the reinforcing steel bar spring is large, the generated elastic potential energy is also large, the inner end of the inserting plate moves outwards and separates from the second inserting groove, the drill bit is directly pulled downwards to move downwards and take out from the first inserting groove, the upper end of the newly replaced drill bit is aligned to the first inserting groove which is regular hexagon and has the same size, the second inserting grooves at the two sides are respectively aligned to the first sliding grooves at the two sides, the pulling force on the two side pulling plates is released, the reinforcing steel bar spring releases the elastic potential energy to push the inserting plate to move inwards in the first sliding groove, the plugboard is inserted into the second slots at two sides of the drill bit, and the plugboard is tightly inserted into the second slots by strong elastic potential energy, so that the drill bit can be replaced, the time and the cost are saved, and the practicability of the bone drill is improved.

2. When installing the bone drill on the rig, aim at the drive end socket of rig with the tail cylinder and insert the socket with it, the double-layered groove that makes bilateral symmetry set up is lived by the inside buckle of drive end, the surrounding edge of the triangle prism form of tail cylinder lateral wall is cliied by the opening simultaneously, evenly distributed's triangle prism surrounding edge is the cockscomb structure, thereby anti-skidding effect has been increased, just also make the rig reduce at the torsion transmission loss of driven in-process centre gripping tail cylinder, the torsion when having increased the torsion of tail cylinder simultaneously has just also increased the drilling of bone drill, the effect of drilling has been improved.

Drawings

Fig. 1 is a schematic front perspective view of a bone drill with a quick-change head capable of increasing torque force of the present invention.

Fig. 2 is a schematic view of a partial three-dimensional structure of a drill bit of a bone drill with a quick-change head capable of increasing torque force of the present invention.

Fig. 3 is a schematic view of a partial front-view section structure of a bone drill with a quick-change head capable of increasing torque force of the present invention.

Fig. 4 is a schematic view of a partial enlarged structure a in fig. 3 of the bone drill with a quick-change head capable of increasing torque force of the present invention.

In the figure: 1. a drill stem; 2. a drill bit; 301. a first slot; 302. a first chute; 303. inserting plates; 304. a second slot; 305. a steel bar spring; 306. a second chute; 307. a slide plate; 308. pulling a plate; 401. a tail pillar; 402. a clamping groove; 403. and (7) surrounding the edge.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1-4, a bone drill with a quick-change head capable of increasing torque force comprises a drill rod 1, a drill bit 2, a quick-change mechanism and an anti-slip mechanism, wherein the quick-change mechanism for quickly changing a drill point is arranged inside the lower end of the drill rod 1, the drill bit 2 is inserted and embedded inside the quick-change mechanism, and the anti-slip mechanism for effectively improving the drilling torque force of the bone drill is fixedly arranged at the upper end of the drill rod 1;

the quick assembly mechanism comprises a first slot 301, an inserting plate 303, a reinforcing steel bar spring 305 and a pulling plate 308, the first slot 301 is formed in the center of the lower end of the drill rod 1, first sliding grooves 302 are formed in two sides of the outer end of the first slot 301, a drill bit 2 is inserted in the first sliding groove 302, second slots 304 are formed in the left side and the right side of the upper end of the drill bit 2, the inserting plate 303 is inserted in the first sliding groove 302 and the second slots 304, the reinforcing steel bar spring 305 is fixedly installed in the first sliding groove 302 in the outer end of the inserting plate 303, a second sliding groove 306 is formed in the drill rod 1 in the outer end of the first sliding groove 302, a sliding plate 307 is connected to the outer side of the inserting plate 303 through the second sliding groove 306, and the pulling plate 308 is fixedly installed in the outer end of the sliding plate 307.

The anti-skid mechanism comprises a tail column 401, clamping grooves 402 and surrounding edges 403, the tail column 401 is fixedly mounted at the upper end of the drill rod 1, the clamping grooves 402 are symmetrically formed in the inner portions of the left side and the right side of the tail column 401, and the surrounding edges 403 are arranged on the outer wall of the side face of the tail column 401 in a melting mode; effectively improves the anti-skidding effect of the bone drill, thereby improving the torsion of the bone drill during drilling.

The cross section of the first slot 301 has the same shape and size as the cross section of the upper end of the drill bit 2, and the shape of the first slot is a regular hexagon; the replacement of the drill bit 2 is facilitated even more.

The size of the cross section of the plug board 303 is matched with that of the cross section of the second slot 304; the fixing of the drill bit 2 is facilitated.

The inserting plate 303 is fixedly connected with one end of a steel bar spring 305, and the other end of the steel bar spring 305 is fixedly connected with the side wall of the first sliding chute 302; the fixation of the drill 2 is improved.

Wherein, the surrounding edge 403 is triangular prism; the anti-skidding effect of the bone drill in the rotating process is increased, and the torsion of the bone drill is improved.

It should be noted that, when the drill bit 2 needs to be replaced, the two side pulling plates 308 are directly pulled outwards manually to drive the sliding plate 307 connected with the inner end to slide outwards in the second sliding groove 306, the sliding plate 307 drives the inserting plate 303 fixedly connected with the upper side and the lower side of the inner end to slide outwards in the first sliding groove 302, so that the reinforcing steel spring 305 fixedly installed on the outer side wall of the inserting plate 303 is extruded and contracted to convert kinetic energy into elastic potential energy, the stiffness coefficient of the reinforcing steel spring 305 is large, the generated elastic potential energy is also large, the inner end of the inserting plate 303 moves outwards from the second inserting groove 304 to separate, the drill bit 2 is directly pulled downwards to move downwards from the first inserting groove 301 to take out, the upper end of the newly replaced drill bit 2 is aligned with the first inserting groove 301 which is regular hexagon in the same shape and size, and the second inserting grooves 304 on the two sides are respectively aligned with the first sliding grooves 302 on the two sides, when the bone drill is installed on the drilling machine, the tail column 401 is aligned to a driving end socket of the drilling machine and is inserted into the socket, the clamping grooves 402 symmetrically formed on two sides are clamped by the driving end, meanwhile, the triangular prism-shaped surrounding edges 403 on the side wall of the tail column 401 are clamped by the opening, and the uniformly distributed triangular prism-shaped surrounding edges 403 are in a sawtooth shape, so that the anti-skidding effect is improved, the torsion transmission loss of the drilling machine for clamping the tail column 401 in the driving process is reduced, and the torsion of the tail column 401 is increased, so that the torsion of the bone drill during drilling is increased.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The bone drill with the quick-change head capable of increasing the torsion is characterized by comprising a drill rod (1), a drill bit (2), a quick-assembly mechanism and an anti-skidding mechanism, wherein the quick-assembly mechanism convenient for quickly replacing a drill point is installed inside the lower end of the drill rod (1), the drill bit (2) is installed inside the quick-assembly mechanism in an inserted and embedded mode, and the anti-skidding mechanism capable of effectively improving the drilling torsion of the bone drill is fixedly installed at the upper end of the drill rod (1);

the fast-assembling mechanism comprises a first slot (301), a flashboard (303), a steel bar spring (305) and a pulling board (308), a first slot (301) is arranged in the center of the lower end of the drill rod (1), first sliding grooves (302) are arranged on two sides of the outer end of the first slot (301), a drill bit (2) is inserted in the first sliding chute (302), second slots (304) are formed in the left side and the right side of the upper end of the drill bit (2), an inserting plate (303) is inserted into the first sliding chute (302) and the second inserting groove (304), a steel bar spring (305) is fixedly arranged in the first sliding groove (302) at the outer end of the inserting plate (303), a second sliding groove (306) is arranged inside the drill rod (1) at the outer end of the first sliding groove (302), the outer side of the inserting plate (303) penetrates through the second sliding groove (306) to be connected with a sliding plate (307), and the outer end of the sliding plate (307) is fixedly provided with a pulling plate (308).

2. The bone drill with a quick-change head and torque-increasing capability of claim 1, wherein: antiskid includes tail-stock (401), presss from both sides groove (402) and surrounding edge (403), drilling rod (1) upper end fixed mounting has tail-stock (401), the inside symmetry in tail-stock (401) left and right sides has seted up presss from both sides groove (402), surrounding edge (403) have been equipped with in tail-stock (401) side outer wall melting.

3. The bone drill with a quick-change head and torque-increasing capability of claim 1, wherein: the cross section of the first slot (301) is the same as the cross section of the upper end of the drill bit (2) in shape and size, and the shape of the first slot is a regular hexagon.

4. The bone drill with the quick-change head capable of increasing torque force as claimed in claim 1, wherein: the size of the cross section of the plug board (303) is matched with that of the cross section of the second slot (304).

5. The bone drill with a quick-change head and torque-increasing capability of claim 1, wherein: the inserting plate (303) is fixedly connected with one end of a steel bar spring (305), and the other end of the steel bar spring (305) is fixedly connected to the side wall of the first sliding groove (302).

6. The bone drill with a quick-change head capable of increasing torque force according to claim 2, wherein: the surrounding edge (403) is in a triangular prism shape.