Self-pop-up cutting drill bit

Abstract

The utility model particularly relates to a self-popping cutting drill bit which comprises an installation head installed on a mechanical arm, a drill bit body is installed on the installation head, a cutting edge is arranged at the front end of the drill bit body, the drill bit body is of a cavity structure, holes are symmetrically formed in the drill bit body in the radial direction, the holes are formed in the upper portion of the cutting edge, and barbs are arranged on the drill bit body and located at the positions of the holes. Threads are arranged in a cavity of the drill bit, a connecting rod is arranged at one end of the drill bit, a clamping groove is formed in the connecting rod in the radial direction, and a quick connecting mechanism is arranged on the mounting head. A thread is arranged in the drill bit and can increase friction force to twist off the biological sample, and manual cutting is not needed.

Description

Technical Field

[0001] The utility model relates to the field of cutting drills, in particular to a self-ejecting cutting drill. Background Art

[0002] Generally, the existing biological sampling on the market is carried out by manually using scissors or a biological sampler. The drills of the biological sampler are all straight cylinder edge structures, and the inside of the cylinder is smooth. Therefore, after the drill cuts, the biological sample will enter the cylinder of the drill, but the biological sample is not cut off from the organism yet, and it is necessary to manually cut the biological sample. If it is contaminated by toxic and harmful substances, it will cause harm to the human body; moreover, the installation of the existing drill and the mounting head is relatively troublesome and inconvenient to use. Summary of the Invention

[0003] The utility model provides a self-ejecting cutting drill.

[0004] The technical solution of the utility model is realized as follows: A self-ejecting cutting drill includes a mounting head, a drill is mounted on the mounting head. The front end of the drill is an edge, the drill is a cavity structure, holes are radially symmetrically opened on the drill, the holes are located above the edge, barbs are arranged at the positions of the holes on the drill, threads are arranged in the cavity of the drill, one end of the drill is a connecting rod, a clamping groove is radially opened on the connecting rod, and a quick connection mechanism is arranged on the mounting head.

[0005] The mounting head is a cavity structure with openings at both ends. The quick connection mechanism includes through holes, the through holes are symmetrically opened in the radial direction of the mounting head, steel balls are placed in the through holes, a sliding sleeve is arranged outside the mounting head, a stepped groove is opened at one end of the sliding sleeve close to the mounting head, a first spring is sleeved in the stepped groove outside the sliding sleeve, and a convex platform for limiting the first spring is arranged on the mounting head; an entry groove for the steel balls to enter is opened on the side of the stepped groove inside the mounting head.

[0006] A horizontally arranged second spring is installed inside the mounting head, and one end of the second spring is fixedly connected to the mounting head.

[0007] When the connecting rod is inserted into the cavity of the mounting head, the other end of the second spring contacts the connecting rod and the second spring is compressed, and the steel balls enter the clamping groove.

[0008] Anti-slip protrusions are arranged outside the sliding sleeve.

[0009] The technical solution of the utility model has the following positive effects: The mounting head of the utility model is mounted on the robotic arm, and the drill bit is mounted on the mounting head through a quick-connection mechanism, which enables quick installation and disassembly of the drill bit and is convenient to use; the drill bit is a cavity structure with an opening at one end, so that the biological sample remains in the drill bit. Threads are provided inside the drill bit, and the threads can increase the friction to break the biological sample, eliminating the need for manual cutting; the barbs can prevent the biological sample from falling off the drill bit; the drill bit with the biological sample is directly sealed and sent for experimental analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the drill bit.

[0011] Figure 2 It is a schematic assembly structural diagram of the mounting head, drill bit and sliding sleeve.

[0012] Reference numerals: 1, mounting head; 2, drill bit; 3, hole; 4, cutting edge; 5, barb; 6, thread; 7, connecting rod; 8, card slot; 9, steel ball; 10, sliding sleeve; 11, stepped groove; 12, first spring; 13, boss; 14, entry groove; 15, second spring; 16, anti-slip protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] As Figure 1-2 shown, a self-ejecting cutting drill bit includes a mounting head 1. The mounting head 1 needs to be mounted on a robotic arm for use. A drill bit 2 is mounted on the mounting head 1. The front end of the drill bit 2 is a cutting edge 4. The drill bit 2 is a cavity structure with an opening at one end. Holes 3 are radially symmetrically formed in the drill bit 2. The holes 3 are located above the cutting edge 4. Barbs 5 are provided on the drill bit 2 at the positions of the holes 3. Threads 6 are provided in the cavity of the drill bit 2. One end of the drill bit 2 is a connecting rod 7, and a card slot 8 is radially formed in the connecting rod 7. A quick-connection mechanism is provided on the mounting head 1.

[0014] Specifically, as Figure 1 shown, the barbs 5 are inclined inward. The mounting head 1 is mounted on the robotic arm. The robotic arm is a prior art and is not shown in the figure and will not be elaborated here. When the robotic arm starts, it drives the drill bit 2 to rotate and enter the organism through the cutting edge 4. As the drill bit 2 rotates, the organism sample will enter the holes 3. The threads 6 increase the friction to break the sample. The barbs 5 can prevent the sample from detaching from the drill bit after the drill bit 2 detaches from the organism.

[0015] The installation head 1 has a cavity structure with openings at both ends. The quick-connect mechanism includes through holes symmetrically opened in the radial direction of the installation head 1. Through holes are symmetrically opened in the radial direction of the installation head 1, and steel balls 9 are placed in the through holes. A sliding sleeve 10 is arranged outside the installation head 1. A stepped groove 11 is opened at one end of the sliding sleeve 10 close to the installation head 1. A first spring 12 is sleeved in the stepped groove 11 outside the sliding sleeve 10. A boss 13 for limiting the first spring 12 is arranged on the installation head 1; an entry groove 14 for the steel ball 9 to enter is opened inside the installation head 1 and at the side of the stepped groove 11.

[0016] Specifically, as Figure 2 shown, the size of the through hole just catches the maximum diameter of the steel ball 9. The steel ball 9 can move up and down in the through hole but will not fall out of the through hole. The right end of the first spring 12 is fixedly connected to the end face of the stepped groove 11 of the sliding sleeve 10, and the left end of the first spring 12 is fixedly connected to the end face of the boss 13; when removing the drill bit 2, the sliding sleeve 10 needs to be pulled to the left, and the first spring 12 can play a role in resetting.

[0017] A second spring 15 arranged horizontally is installed inside the installation head 1. One end of the second spring 15 is fixedly connected to the installation head 1; specifically, a part of the left end of the second spring 15 is fixedly connected to the inner side of the installation head 1, and the other end still needs to stretch and contract normally.

[0018] When the connecting rod 7 is inserted into the cavity of the installation head 1, the other end of the second spring 15 contacts the connecting rod 7 and the second spring 15 is compressed, and the steel ball 9 enters the card slot 8.

[0019] Specifically, after the drill bit 2 takes a biological sample, the drill bit 2 needs to be removed. The steps are as follows: pull the sliding sleeve 10 to the left. When the entry groove 14 is above the steel ball 9, the second spring 15 will move to the right, thereby pushing the steel ball 9 up into the entry groove 14, and the drill bit 2 will not be stuck by the steel ball 9 and come out of the installation head 1. The drill bit with the biological sample is directly stored in the storage box for sealing, and after disinfection, it is sent to the laboratory for analysis.

[0020] Anti-slip protrusions 16 are arranged outside the sliding sleeve 10; specifically, the anti-slip protrusions 16 can increase the external friction when sliding.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A self - ejecting cutting drill bit, including a mounting head, and a drill bit is mounted on the mounting head, characterized in that: The front end of the drill bit is a cutting edge. The drill bit has a cavity structure. The drill bit is radially symmetrically provided with holes, which are located above the cutting edge. Barbs are provided on the drill bit at the positions of the holes. Threads are provided in the cavity of the drill bit. One end of the drill bit is a connecting rod, and a clamping groove is radially provided in the connecting rod. A quick-connect mechanism is provided on the mounting head.

2. The self - ejecting cutting drill bit according to claim 1, characterized in that: The mounting head has a cavity structure with openings at both ends. The quick-connect mechanism includes through holes, which are symmetrically provided in the radial direction of the mounting head. Steel balls are placed in the through holes. A sliding sleeve is provided outside the mounting head. A stepped groove is provided at one end of the sliding sleeve close to the mounting head. A first spring is sleeved in the stepped groove outside the sliding sleeve. A boss for limiting the first spring is provided on the mounting head; an entry groove for the steel balls to enter is provided inside the mounting head at the side of the stepped groove.

3. The self - ejecting cutting drill bit according to claim 2, characterized in that: A second spring is horizontally installed inside the mounting head, and one end of the second spring is fixedly connected to the mounting head.

4. The self - ejecting cutting drill bit according to claim 3, characterized in that: When the connecting rod is inserted into the cavity of the mounting head, the other end of the second spring contacts the connecting rod and the second spring is compressed, and the steel balls enter the clamping groove.

5. The self - ejecting cutting drill bit according to claim 2, characterized in that: Anti-slip protrusions are provided outside the sliding sleeve.

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