High-speed abrasive drill finger control assembly

Abstract

The utility model discloses a high-speed abrasive drill finger control assembly, which belongs to the technical field of high-speed abrasive drills and comprises a pressing rod, a pressing rod seat and an elastic hoop. The pressing rod is rotationally connected with the pressing rod base through a second pin shaft, and a spring piece capable of elastically supporting the pressing rod is arranged on the pressing rod base. A positioning pin which penetrates through the elastic hoop and can be inserted into the abrasive drill body in a positioning manner is arranged on the pressing rod seat; the pressing rod seat is fixedly connected with the elastic hoop; a magnet is installed on the pressing rod, and a proximity switch capable of being inducted with the magnet is arranged in the abrasive drill body. The elastic hoop of the arc surface structure can be clamped with abrasive drill bodies of different thicknesses, universality is good, and the finger control assembly and the abrasive drill body are connected and installed accurately and conveniently through positioning and inserting of the positioning pin and the positioning hole in the abrasive drill body. The whole structure is simple, the abrasion drill body is convenient to disassemble and assemble, locking is accurate and reliable, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high -speed drill technology field, specifically a high -speed drill finger control assembly. BACKGROUND

[0002] High -speed drill is a kind of high -efficient tool widely used in surgical operation, high -speed drill is a kind of low vibration, low impact, high safety factor, pressure reduction is more thorough, easy to operate instrument, can effectively reduce the risk of injury in operation, greatly simplify and speed up the operation procedure, improve the operation efficiency, can be used in craniocerebral, spinal surgery to remove bone tissue.

[0003] High -speed drill is very widely used in spinal surgery, including the treatment of diseases such as intervertebral disc herniation, spinal stenosis. It can quickly and finely process bone tissue, and carefully grind the intracavity wall surface bone crest in various directions under direct vision or navigation guidance until normal bone is exposed.

[0004] Traditional high -speed drill includes drill body and grinding head assembly, high -speed drill is generally small in size, and the operator can adopt the posture similar to holding pen to write to hold high -speed drill, so that it is more convenient for the doctor to accurately operate the operation area.

[0005] When controlling the start, stop and speed regulation of high -speed drill, the common solution includes multiple ways, such as using independent foot switch control or using switch key on high -speed drill hand -held part to control. In order to provide more visual and convenient switch control function for the operator, some high -speed drill products will provide a detachable hand control switch at the holding position to realize the operation control of the start, stop and speed regulation of high -speed drill. The installation of such finger control assembly needs to be slid into the drill body from one end, and then locked after alignment mark, and the operation steps are more, complex, and not easy to align and lock. In addition, a specification of finger control assembly can only adapt to a specific specification of drill body, and the versatility is poor. UTILITY MODEL CONTENTS

[0006] In order to solve the problems of the installation of traditional high -speed drill finger control assembly, needing to be slid into the drill body from one end, and then locked after alignment mark, more operation steps, complex, and not easy to align and lock, and a specification of finger control assembly can only adapt to a specific specification of drill body, poor versatility, the utility model provides a high -speed drill finger control assembly.

[0007] The utility model is realized through the following technical schemes:

[0008] A high-speed drill grinding finger control assembly comprises a pressure rod, a pressure rod seat and an elastic clamp with an arc surface structure that can be engaged with the drill grinding body; the pressure rod is rotatably connected to the pressure rod seat via a second pin shaft, and the pressure rod seat is provided with a spring member that can elastically support the pressure rod; the pressure rod seat is provided with a positioning pin that passes through the elastic clamp and can be positioned and inserted with the drill grinding body; the pressure rod seat is fixedly connected to the elastic clamp; a magnet is installed on the pressure rod, and a proximity switch that can sense the magnet is provided in the drill grinding body.

[0009] A further improvement of the utility model is that a positioning hole for inserting and fitting with the positioning pin is provided on the grinding drill body.

[0010] A further improvement of the present invention is that the edges of the positioning holes are chamfered.

[0011] A further improvement of the present invention is that the spring member is a spring sheet, and both ends of the spring sheet are elastically supported by the pressure rod and the pressure rod seat respectively.

[0012] A further improvement of the present invention is that an end of the pressure rod close to the pressure rod seat is provided with a mounting groove for accommodating the spring member, and first pins for positioning and mounting the spring piece are installed on both sides of the mounting groove.

[0013] A further improvement of the present invention is that a tilted bending portion is provided at one end of the pressure rod away from the pressure rod seat.

[0014] A further improvement of the present invention is that an anti-slip structure is provided on the pressure rod.

[0015] A further improvement of the present invention is that the anti-slip structure is an anti-slip groove or a protective protrusion.

[0016] A further improvement of the present invention is that both ends of the side walls of the elastic clamp are provided with outwardly curved curling edges.

[0017] It can be seen from the above technical solutions that the beneficial effects of the present invention are:

[0018] The elastic clamp with a circular arc surface structure can be engaged with drill bits of varying coarseness and fineness, providing excellent versatility. The positioning pin engages with the positioning hole on the drill body, ensuring precise and convenient connection and installation of the finger control assembly to the drill body. During use, the finger presses the lever, bringing the magnet on the lever close to the drill body. The proximity switch inside the drill body senses when the actuation point is reached, and the contact is connected, starting the drill body. Continued pressure on the lever adjusts the speed via the proximity switch. Release the lever, and the spring force automatically lifts the lever away from the drill body. The proximity switch inside the drill body senses when the actuation point is reached, and the contact is disconnected, stopping the drill body. The overall structure is simple, easy to assemble and disassemble from the drill body, and the locking mechanism is precise and reliable, making it highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Fig. 1 This is a schematic diagram of the usage state of a specific embodiment of the utility model.

[0021] Fig. 2 This is a schematic structural diagram of a drill grinding body according to a specific embodiment of the present invention.

[0022] Fig. 3 It is an exploded schematic diagram of a specific implementation method of the present utility model.

[0023] In the accompanying drawings: 110, pressure rod, 111, bending portion, 112, mounting groove, 113, anti-slip structure, 114, groove, 120, spring sheet, 130, first pin, 140, magnet, 150, second pin, 160, pressure rod seat, 161, positioning pin, 170, elastic clamp, 171, curling, 200, grinding drill body, 210, positioning hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0025] like Figs. 1-3The utility model discloses a high -speed drill finger control subassembly, including pressure lever 110, pressure lever seat 160 and the elastic clamp 170 of the cambered surface structure (the included angle is 270 degrees) can be installed with drill body 200 clamping, pressure lever 110 is installed through the second pin shaft 150 and is rotatably connected with pressure lever seat 160, and pressure lever seat 160 is equipped with the spring piece that can be elastically supported to pressure lever 110 upwards (the direction of being away from drill body 200), and pressure lever seat 160 is equipped with the positioning pin 161 that can be positioned and inserted with drill body 200 at the middle part of elastic clamp 170, and pressure lever seat 160 is fixedly connected with elastic clamp 170, and the positioning hole 210 that is inserted with positioning pin 161 is seted up on drill body 200. The magnet 140 (preferably magnetic steel) is installed on pressure lever 110, and the proximity switch (magnetic) that can be inducted with magnet 140 is equipped in drill body 200.

[0026] The elastic clamp 170 of cambered surface structure can be clamped with different thickness drill body 200, and the accuracy and convenience of the connection and installation of the finger control subassembly and the drill body 200 are realized by the positioning pin 161 and the positioning hole 210 on the drill body 200. When using, the finger presses the pressure lever 110, and the magnet 140 on the pressure lever 110 is close to the drill body 200, and the proximity switch in the drill body 200 is inducted, and when reaching the action point position, the contact point is conducted, and the drill body 200 is started. Continue to press the pressure lever 110, and the proximity switch in the drill body is inducted, and the speed is adjusted. The pressure lever 110 is automatically lifted (away from the drill body 200) under the elastic force of the spring, and the proximity switch in the drill body 200 is inducted, and when reaching the action point position, the contact point is disconnected, and the drill body 200 is stopped. The overall structure is simple, the drill body 200 is convenient to disassemble and assemble, the locking is accurate and reliable, and the practicability is good.

[0027] The pressure lever seat 160 and the elastic clamp 170 are fixedly connected by welding, and the welding seam is located on the two sides of the outer side of the elastic clamp 170. The positioning convex is provided on the pressure lever seat 160 and positioned and inserted with the elastic clamp 170. The positioning pin 161 passes through the middle hole of the elastic clamp 170, the positioning convex on the pressure lever seat 160 is inserted into the positioning groove on the outer side of the elastic clamp 170, and then the two sides are clamped and welded, so that the accuracy and reliability of the connection and installation of the pressure lever seat 160 and the elastic clamp 170 are realized.

[0028] The positioning hole 210 is provided with a chamfered edge. The positioning pin 161 is inserted into the positioning hole 210, the positioning hole 210 is guided, and the convenience of the installation of the drill body 200 is ensured.

[0029] The spring piece is a spring sheet 120, and the spring sheet 120 is elastically supported at both ends with the pressing rod 110 and the pressing rod seat 160. The pressing rod 110 is provided with a mounting groove 112 containing the spring piece at one end close to the pressing rod seat 160, and the first pin shaft 130 capable of positioning and mounting the spring sheet 120 is mounted at both sides of the mounting groove 112. The spring sheet 120 is in the form of a structure and is mounted in the mounting groove 112, realizes hidden installation, and is positioned by the first pin shaft 130 (the spring sheet 120 is bent at a circular arc position, and the first pin shaft 130 penetrates the spring sheet 120 at the bent position), realizes compactness of the structure arrangement and reliability of the elastic support.

[0030] The pressing rod 110 is provided with a groove 114 at both sides of one end close to the pressing rod seat 160, and the pressing rod seat 160 is in the form of a U-shaped bent plate structure, the two wing plates of which are arranged at the position of the groove 114 and are connected by the second pin shaft 150 penetrating and rotating, realizing compactness of the structure arrangement; and the side wall (having a rear part and an upper part) of the groove 114 can limit the turning limit position of the pressing rod 110.

[0031] The pressing rod 110 is provided with a bending part 111 raised away from the grinding drill body 200 at one end away from the pressing rod seat 160. Realize the convenience of pressing operation, avoid slipping and losing hand.

[0032] The pressing rod 110 is provided with an anti-skid structure 113. The anti-skid structure 113 is an anti-skid groove or a protective protrusion. Increase the static friction of the pressing operation, avoid slipping, and ensure the reliability and installation of the operation.

[0033] The side wall of the elastic hoop 170 is provided with an outward arc-shaped flange 171 at both ends. When the elastic hoop 170 is clamped on the grinding drill body 200, the arc-shaped flange 171 can play a guiding role and avoid scratching the surface of the grinding drill body 200.

[0034] The finger control assembly of the high-speed grinding drill, the elastic clamp 170 with the arc surface structure can be clamped with the grinding drill body 200 with different thicknesses, is good in universality, is positioned and inserted with the positioning hole 210 on the grinding drill body 200 through the positioning pin 161, and the accuracy and convenience of the connection and installation of the finger control assembly and the grinding drill body 200 are realized; when in use, the finger presses the pressing rod 110, the magnet 140 on the pressing rod 110 is close to the grinding drill body 200, the proximity switch inside the grinding drill body 200 is inducted, when reaching the action point position, the contact point is conducted, and the grinding drill body 200 is started; the pressing rod 110 is continuously pressed, the proximity switch inside the grinding drill body is inducted, and the speed is adjusted; the pressing on the pressing rod 110 is released, the pressing rod 110 is automatically lifted (away from the grinding drill body 200) under the elastic force of the spring part, the proximity switch inside the grinding drill body 200 is inducted, when reaching the action point position, the contact point is disconnected, and the grinding drill body 200 is stopped. The overall structure is simple, the grinding drill body 200 is convenient to disassemble and assemble, the locking is accurate and reliable, and the practicability is good.

[0035] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0036] In the specification, the terms "upper", "lower", "outer side", "inner side" and the like, if any, are used to distinguish the relative position relationship, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-speed drilling finger control assembly, characterized in that: The invention comprises a pressure rod (110), a pressure rod seat (160) and an elastic hoop (170) with an arc surface structure that can be mounted on a drill grinding body (200); the pressure rod (110) is rotatably connected to the pressure rod seat (160) via a second pin shaft (150); the pressure rod seat (160) is provided with a spring member that can elastically support the pressure rod (110); the pressure rod seat (160) is provided with a positioning pin (161) that passes through the elastic hoop (170) and can be positioned and inserted with the drill grinding body (200); the pressure rod seat (160) is fixedly connected to the elastic hoop (170); a magnet (140) is mounted on the pressure rod (110), and a proximity switch that can sense the magnet (140) is provided in the drill grinding body (200).

2. The high-speed drilling finger control assembly according to claim 1, characterized in that: A positioning hole (210) is provided on the grinding drill body (200) and is engaged with the positioning pin (161).

3. The high-speed drilling finger control assembly according to claim 2, characterized in that: The edge of the positioning hole (210) is provided with a chamfer.

4. The high-speed drilling finger control assembly according to claim 1, characterized in that: The spring member is a spring sheet (120), and two ends of the spring sheet (120) are elastically supported by the pressure rod (110) and the pressure rod seat (160) respectively.

5. The high-speed drilling finger control assembly according to claim 4, characterized in that: An end of the pressure rod (110) close to the pressure rod seat (160) is provided with a mounting groove (112) for accommodating the spring member, and first pins (130) capable of positioning and mounting the spring sheet (120) are installed on both sides of the mounting groove (112).

6. The high-speed drilling finger control assembly according to claim 1, characterized in that: An end of the pressure rod (110) away from the pressure rod seat (160) is provided with a raised bent portion (111).

7. The high-speed drilling finger control assembly according to claim 1, characterized in that: An anti-slip structure (113) is provided on the pressure rod (110).

8. The high-speed drilling finger control assembly according to claim 7, characterized in that: The anti-slip structure (113) is an anti-slip groove or a protective protrusion.

9. The high-speed drilling finger control assembly according to claim 1, characterized in that: Outwardly curved edges (171) are provided at both ends of the side wall of the elastic clamp (170).

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