Electric bone drill with mistaken touch prevention switch structure

By designing an anti-accidental-touch switch structure on the electric bone drill, including components such as the drill bit, transmission head, and motor, precise control of the motor's output power is achieved, preventing accidental starting and ensuring operational safety.

CN224220192UActive Publication Date: 2026-05-12SHUJIE MEDICAL TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHUJIE MEDICAL TECH (SUZHOU) CO LTD
Filing Date
2025-01-09
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

电动骨钻在操作过程中可能因误触开关导致意外启动,造成操作者和周围人员的伤害。

Method used

设计了一种防误碰开关结构,包括钻头、传动头、电机、嵌壳、散热风机、握把、按压块、弹簧、内阻尼杆和力传导孔,通过限位块和侧限位槽精准控制电机输出功率,防止误触启动。

Benefits of technology

It effectively prevents accidental activation of the electric bone drill due to accidental contact, ensuring the safety of the operator and surrounding personnel, and providing precise operation control.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224220192U_ABST
    Figure CN224220192U_ABST
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Abstract

The electric bone drill comprises a drill bit and a force transmission hole, a set of locking covers used for limiting the position of the drill bit are arranged on the outer side of the right end of the drill bit, and a set of transmission heads used for driving the drill bit to rotate are arranged on the right side of the drill bit. Compared with the prior art, the drilling machine has the advantages that the connecting caulking groove and the caulking shell are used for being in sealing and embedding fit with an external equipment sealing cover, the outer side of the drill bit is protected, the drill bit is prevented from being damaged, and the service life of the drill bit is prolonged. The sliding shell moves up and down through the embedding base, the pressing block is used for being pressed by a worker, the limiting block is used for guiding and limiting the position of the pressing block, the inner damping rod is used for slowly releasing the contraction and expansion power potential energy of the spring, and the side limiting groove is used for limiting, guiding and embedding the limiting block.
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Description

Technical Field

[0001] This utility model belongs to the field of electric bone drill technology, and relates to an electric bone drill with an anti-accidental-touch switch structure. Background Technology

[0002] An electric bone drill is a power tool used in orthopedic surgery to efficiently and precisely drill, grind, or cut bone tissue. This device plays a crucial role in internal fixation of fractures, joint replacement, spinal surgery, and other orthopedic procedures requiring precise manipulation. Electric bone drills are designed to provide sufficient power and control so that surgeons can complete procedures with minimal trauma. Without a safety switch to prevent accidental activation, electric bone drills can lead to a range of safety issues and operational risks.

[0003] Because electric bone drills typically have high speeds and strong torque, accidental activation of the switch during operation can cause the equipment to start unexpectedly. This could injure the operator, such as cutting or pinching their fingers, or even harm nearby medical staff or patients. Therefore, there is an urgent need for an electric bone drill with an anti-accidental-touch switch structure to solve these problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric bone drill with an anti-accidental-touch switch structure to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: an electric bone drill with an anti-accidental contact switch structure, comprising: a drill bit and a force transmission hole, wherein a set of locking covers for limiting the position of the drill bit is provided on the outer side of the right end of the drill bit;

[0006] The drill bit is provided with a set of transmission heads on the right side for driving the drill bit to rotate. The transmission heads are provided with a set of motors on the right side for providing power to the transmission heads. The motors are installed inside the machine body.

[0007] The left side of the machine body is provided with a set of housings for sealing and fitting with the external equipment cover. The left side of the housing is provided with a set of connecting slots with annular toothed structure. The cross-section of the machine body is a cylindrical structure, and the right side of the machine body is provided with a set of cooling fans for cooling the motor. It can be sealed and fitted with the external equipment cover by using the connecting slots and housings, and protect the outside of the drill bit.

[0008] In a preferred embodiment, the lower end of the body is provided with a set of handles for easy hand-holding by the operator. The lower end of the handles is provided with a set of bases for holding the handles. The left side of the bases is provided with a set of inserts for moving the slide shell vertically. The slide shell can be moved vertically by using the inserts.

[0009] In a preferred embodiment, the mounting structure is an isosceles trapezoidal structure when viewed from above. The outer side of the mounting is movably fitted with the inner side of the sliding shell. A set of pressing blocks for workers to hold is provided on the right side of the inner side of the sliding shell. The pressing blocks can be used for workers to hold the device.

[0010] In a preferred embodiment, the pressing block has a trapezoidal cross-section. A set of limiting blocks for guiding and limiting the position of the pressing block is provided at the middle position of the front and rear sides of the pressing block. An embedded groove for fitting and installing with the spring is provided inside the right side of the pressing block. The position of the pressing block can be guided and limited by using the limiting blocks.

[0011] In a preferred embodiment, the inner groove has a set of inner rubber pads on the left side for protecting the pressure on the left side of the spring, and a set of springs on the right side for holding the pressure of the pressing block. The springs have an inner damping rod on the right side for releasing the tension and relaxation potential energy of the spring. The tension and relaxation potential energy of the spring can be released by using the inner damping rod.

[0012] In a preferred embodiment, a set of limiting shells for limiting the position of the pressing block is provided on the outer side of the right end of the pressing block. The limiting shell is provided with a set of inner slots for engaging with the pressing block. A set of side limiting grooves for limiting and guiding the limiting block is provided at the middle position of the front and rear sides of the limiting shell. The limiting block can be limited and guided by using the side limiting grooves.

[0013] In a preferred embodiment, the right side of the limiting shell is provided with a set of force transmission holes for transmitting the pressure of the internal damping rod, and the right side of the force transmission holes is provided with a set of pressure switches for adjusting the output power of the motor.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are: by using the connecting groove and the housing to seal and fit with the external equipment cover and protect the outside of the drill bit, by using the seat to move the sliding shell up and down, by using the pressing block for the worker to hold, by using the limiting block to guide and limit the position of the pressing block, by using the internal damping rod to release the spring tension and relaxation potential energy, and by using the side limiting groove to limit and guide the limiting block. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the left front oblique side of an electric bone drill with an anti-accidental-touch switch structure according to the present invention.

[0017] Figure 2 This is a top view of the right oblique front side of an electric bone drill with an anti-accidental-touch switch structure according to the present invention.

[0018] Figure 3 This is a top view of the left oblique front side of the pressing block in an electric bone drill with an anti-accidental-touch switch structure according to the present invention;

[0019] Figure 4 This is a top view of the right oblique front side of the embedded groove and the limiting shell in an electric bone drill with an anti-accidental contact switch structure according to the present invention.

[0020] In the diagram: 100-Drill bit, 110-Locking cover, 120-Embedded shell, 130-Body, 140-Handle, 150-Embedded seat, 160-Sliding shell, 170-Base, 180-Pressing block, 190-Limiting shell, 200-Inner slot, 210-Side limiting slot, 220-Limiting block, 230-Inner groove, 240-Inner spring, 250-Inner damping rod, 260-Force transmission hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 An electric bone drill with an anti-accidental-touch switch structure includes: a drill bit 100, a body 130, a pressing block 180, a spring 240, and a force transmission hole 260. A set of locking covers 110 for limiting the position of the drill bit 100 is provided on the outer side of the right end of the drill bit 100.

[0023] The drill bit 100 is provided with a set of transmission heads on the right side for driving the drill bit 100 to rotate. The transmission heads are provided with a set of motors on the right side for providing power to the transmission heads. The motors are installed inside the machine body 130.

[0024] The left side of the body 130 is provided with a set of housings 120 for sealing and fitting with the cover of external equipment. The left side of the housing 120 is provided with a set of connecting grooves with annular toothed structure. The cross-section of the body 130 is a cylindrical structure, and the right side of the body 130 is provided with a set of cooling fans for cooling the motor. It can be sealed and fitted with the cover of external equipment by using the connecting grooves and housings 120, and protect the outside of the drill bit 100.

[0025] The lower end of the body 130 is provided with a set of handles 140 for easy hand holding by the operator. The lower end of the handles 140 is provided with a set of bases 170 for holding the handles 140. The left side of the bases 170 is provided with a set of inserts 150 for moving the slide shell 160 up and down. The slide shell 160 can be moved up and down by using the inserts 150.

[0026] The mounting base 150 has an isosceles trapezoidal structure when viewed from above. The outer side of the mounting base 150 is movably fitted with the inner side of the sliding shell 160. The right side of the inner side of the sliding shell 160 is provided with a set of pressing blocks 180 for workers to hold. The pressing blocks 180 can be used for workers to hold.

[0027] The cross-section of the pressing block 180 is a trapezoidal structure. A set of limiting blocks 220 for guiding and limiting the position of the pressing block 180 is provided at the middle position of the front and rear sides of the pressing block 180. A set of embedded grooves 230 for fitting and installing with the spring 240 is provided inside the right side of the pressing block 180. The position of the pressing block 180 can be guided and limited by using the limiting blocks 220.

[0028] The inner groove 230 has a set of inner rubber pads on the left side for protecting the pressure on the left side of the spring 240. The inner rubber pads have a set of springs 240 on the right side for holding the pressure of the pressing block 180. The inner damping rod 250 on the right side of the spring 240 is used to release the tension and contraction potential energy of the spring 240. The tension and contraction potential energy of the spring 240 can be released by using the inner damping rod 250.

[0029] A set of limiting shells 190 is provided on the outer right side of the pressing block 180 to limit the position of the pressing block 180. A set of inner slots 200 are provided inside the limiting shell 190 to fit into the pressing block 180. A set of side limiting grooves 210 are provided at the middle position of the front and rear sides of the limiting shell 190 to limit and guide the limiting block 220 to fit into the limiting block. The limiting block 220 can be limited and guided to fit into the limiting block by using the side limiting grooves 210.

[0030] The right side of the limiting housing 190 is provided with a set of force transmission holes 260 for transmitting the pressure of the inner damping rod 250, and the right side of the force transmission holes 260 is provided with a set of pressure switches for adjusting the output power of the motor.

[0031] Please see Figures 1-4 As the first embodiment of this utility model: To address the problem that electric bone drills typically have high rotational speeds and strong torque, accidental activation during operation could lead to unintended start-up, potentially causing injury to the operator (such as cuts or pinched fingers) or even harm to nearby medical staff or patients, this utility model is designed so that when staff need to use it, the sliding shell 160 is first moved along the outer side of the mounting base 150. Since the mounting base 150 has an isosceles trapezoidal structure when viewed from above, the outer side of the mounting base 150 movably engages with the inner side of the sliding shell 160. Inside the sliding housing 160, on the right side, there is a set of pressing blocks 180 for the staff to hold. When the pressing blocks 180 are exposed, the staff applies force to the pressing blocks 180, causing the pressing blocks 180 to compress the spring 240 and the inner damping rod 250, and causing the inner damping rod 250 to apply force to the pressure switch outside the force transmission hole 260, thereby adjusting the output power of the motor through the pressure switch. When the medical staff stops using it, the sliding housing 160 is moved along the outside of the mounting base 150 and the pressing blocks 180 are covered, thereby preventing the medical staff from accidentally touching the pressing blocks 180 and causing the drill bit 100 to rotate.

[0032] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further, since a set of limiting blocks 220 for guiding and limiting the position of the pressing block 180 is provided at the middle position of the front and rear sides of the pressing block 180, and a set of side limiting grooves 210 for limiting and guiding the limiting blocks 220 are provided at the middle position of the front and rear sides of the limiting shell 190, when the pressing block 180 is subjected to force, the pressing block 180 can move along the two sets of side limiting grooves 210, thereby ensuring that the moving position of the pressing block 180 is accurate and precisely controlling the output power of the motor.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric bone drill with an anti-accidental-touch switch structure, comprising: The drill bit (100), body (130), handle (140), spring (240) and force transmission hole (260) are characterized in that: a set of locking caps (110) for limiting the position of the drill bit (100) are provided on the outer side of the right end of the drill bit (100); The drill bit (100) is provided with a set of transmission heads on the right side for driving the drill bit (100) to rotate. The transmission head is provided with a set of motors on the right side for providing power to the transmission head. The motors are installed inside the machine body (130). The left side of the body (130) is provided with a set of housings (120) for sealing and fitting with the cover of external equipment. The left side of the housing (120) is provided with a set of connecting grooves with annular toothed structure. The cross-section of the body (130) is a columnar structure, and the right side of the body (130) is provided with a set of cooling fans for cooling the motor.

2. The electric bone drill with an anti-accidental-touch switch structure according to claim 1, characterized in that: The lower end of the body (130) is provided with a set of handles (140) for easy hand holding by the staff. The lower end of the handles (140) is provided with a set of bases (170) for holding the handles (140). The left side of the bases (170) is provided with a set of inserts (150) for moving the sliding shell (160) up and down.

3. An electric bone drill with an anti-accidental-touch switch structure according to claim 2, characterized in that: The mounting base (150) has an isosceles trapezoidal structure when viewed from above. The outer side of the mounting base (150) is movably fitted with the inner side of the sliding shell (160). A set of pressing blocks (180) for workers to hold are provided on the right side inside the sliding shell (160).

4. An electric bone drill with an anti-accidental-touch switch structure according to claim 3, characterized in that: The cross-section of the pressing block (180) is a trapezoidal structure. A set of limiting blocks (220) for guiding and limiting the position of the pressing block (180) is provided at the middle position of the front and rear sides of the pressing block (180). A set of inner grooves (230) for fitting and installing with the spring (240) is provided inside the right side of the pressing block (180).

5. An electric bone drill with an anti-accidental-touch switch structure according to claim 4, characterized in that: The inner groove (230) has a set of inner rubber pads on the left side for protecting the pressure on the left side of the spring (240), and a set of springs (240) on the right side for holding the pressure of the pressing block (180). The springs (240) have a set of inner damping rods (250) on the right side for releasing the tension potential energy of the springs (240).

6. An electric bone drill with an anti-accidental-touch switch structure according to claim 4, characterized in that: The right side of the pressing block (180) is provided with a set of limiting shells (190) for limiting the position of the pressing block (180). The inside of the limiting shell (190) is provided with a set of inner slots (200) for engaging with the pressing block (180). The middle position of the front and rear sides of the limiting shell (190) is provided with a set of side limiting grooves (210) for limiting and guiding the limiting block (220) to engage.

7. An electric bone drill with an anti-accidental-touch switch structure according to claim 6, characterized in that: The right side of the limiting shell (190) is provided with a set of force transmission holes (260) for transmitting the pressure of the inner damping rod (250), and the right side of the force transmission holes (260) is provided with a set of pressure switches for adjusting the output power of the motor.