阅读说明：本技术 一种钻穿自停颅骨钻头及颅骨钻 (Drill-through automatic-stop skull drill bit and skull drill ) 是由 徐金巧 赵向阳 于 2021-09-06 设计创作，主要内容包括：本发明涉及颅骨钻技术领域,具体为一种钻穿自停颅骨钻头及颅骨钻,包括钻体,钻体的内部安装有马达,马达的输出轴上安装有延伸至钻体外侧的钻头,钻体的内部开设有滑孔,马达滑动安装在滑孔内,滑孔的内部还滑动安装有位于马达上侧的步进电机,步进电机的输出轴上安装有丝杆,马达的顶壁上安装有与丝杆螺纹连接的螺纹套,滑孔的顶部安装有软垫。本发明通过步进电机驱动马达移动对头骨进行钻孔,当受到前进阻力时步进电机会受到反作用力,压电陶瓷因此受到压力产生电流,通过电磁铁将启动按钮吸附保持电路的接通,当钻穿头骨后钻头不再受到阻力,电磁铁因此失去磁性,电路断开,使步进电机和马达停止工作,钻头不再前进,避免对脑组织造成伤害。(The invention relates to the technical field of skull drills, in particular to a drill bit capable of drilling through and automatically stopping a skull and a skull drill. The stepping motor drives the motor to move to drill the skull, when the stepping motor receives forward resistance, the stepping motor receives reaction force, the piezoelectric ceramic receives pressure to generate current, the starting button is adsorbed by the electromagnet to keep the circuit switched on, when the drill bit does not receive resistance after drilling through the skull, the electromagnet loses magnetism, the circuit is switched off, the stepping motor and the motor stop working, the drill bit does not advance any more, and the brain tissue is prevented from being damaged.)

1. The utility model provides a bore self-stop skull and bore, includes bores body (1), and the internally mounted of boring body (1) has motor (6), installs drill bit (7) that extend to boring body (1) outside on the output shaft of motor (6), its characterized in that: drill the inside of the body (1) and seted up slide opening (2), motor (6) slidable mounting is in slide opening (2), the inside of slide opening (2) still slidable mounting has step motor (3) that is located motor (6) upside, install lead screw (4) on the output shaft of step motor (3), install on the roof of motor (6) thread bush (5) with lead screw (4) threaded connection, cushion (23) are installed at the top of slide opening (2), be equipped with piezoceramics (22) between cushion (23) and step motor (3), start button (15) are installed at the top of the body (1) of boring, the circular telegram subassembly of being connected with piezoceramics (22) electricity is installed at the top of the body (1) of boring, and start button (15) and circular telegram subassembly are mutually supported.

2. A drill-through self-stop burr drill according to claim 1, characterized in that: the circular telegram subassembly is including installing electro-magnet (16) at the drill body (1) top, electro-magnet (16) and piezoceramics (22) electric connection, drill the top of the body (1) and offer the jack with start button (15) adaptation, the jack is located electro-magnet (16) directly over, start button (15) are galvanized iron material, be equipped with top sheet (17) on the diapire of jack, all install contact electrode (18) of mutually supporting on the bottom of start button (15) and the diapire of jack, step motor (3) and motor (6) are opened when two contact electrode (18) contact.

3. A drill-through self-stop burr drill according to claim 1, characterized in that: all be equipped with the stopper on the outer wall of step motor (3) and motor (6), set up respectively on the inner wall of slide opening (2) with the spacing spout (14) of stopper adaptation, spacing spout (14) restriction step motor (3) move down.

4. A drill-through self-stop burr drill according to claim 1, characterized in that: the drill is characterized in that an adsorption port (9) is formed in the bottom end of the drill body (1), a piston cylinder (10) communicated with the outer side of the drill body (1) is arranged on the inner wall of the adsorption port (9), a piston (13) is arranged inside the piston cylinder (10), a piston rod (11) extending to the outer side of the drill body (1) is connected onto the piston (13), a shifting rod (12) is installed on the outer wall of the drill body (1) in a rotating mode, a shifting groove matched with the shifting rod (12) is formed in the piston rod (11), an operation port (21) for the shifting rod (12) to move is formed in the outer wall of the drill body (1), and a one-way stop block (19) for fixing the position of the shifting rod (12) is arranged inside the operation port (21).

5. A drill-through self-stop burr drill according to claim 4, characterized in that: the one-way stopper (19) is of a wedge-shaped structure, the one-way stopper (19) is elastically inserted into the inner side wall of the operation opening (21), and a spring (20) fixedly connected with the shift lever (12) is installed on the bottom wall of the operation opening (21).

6. A drill-through self-stop burr drill according to claim 4, characterized in that: the observation port (8) has been seted up to the bottom of boring body (1), drill bit (7) are outwards extended through observation port (8), the bottom of boring body (1) is the arc and is upwards sunken, the bottom subsides of boring body (1) are equipped with sealed the pad.

7. A cranial drill bit, characterized by: is suitable for use in the through-drilling self-stopping cranial drill according to any one of claims 1 to 6.

Technical Field

The invention relates to the technical field of skull drills, in particular to a skull drill bit capable of automatically stopping drilling through and a skull drill.

Background

Diseases such as intracranial pressure increase, craniocerebral injury, intracranial tumors, cerebrovascular diseases, intracranial infection and the like are one of killers which are harmful to human life and health for a long time. Brain surgery is an important means for curing the diseases, and the primary principle in the operation is to preserve nervous tissues and reduce side injury and infection. The skull drill is a common surgical instrument in brain surgery, and is mainly divided into a manual operation instrument and an electric operation instrument at present. The manual skull drill has the advantage of convenient control when the early science and technology is underdeveloped, but with the continuous development of medical equipment and instruments, the defects of the manual skull drill in use are more and more obvious, and the electric skull drill gradually replaces the manual skull drill.

Although the electric skull drill has obvious advantages compared with a manual skull drill, the electric skull drill still has higher requirements on the experience and the technology of an operating physician in practical operation due to the fineness of brain surgery. The outer layer of the brain is covered by hair and skin, the skull which has the protective effect is arranged under the scalp, the dura mater is arranged under the skull, and because the dura mater has elasticity, a gap of nearly 2mm is still arranged between the skull and the dura mater after the skull is drilled through. When drilling the skull, medical personnel must carefully use the drilling tool, and the meninges cannot be drilled when the skull is drilled, so that brain tissues are prevented from being injured, and the life safety of a patient is prevented from being endangered. The current cranial drill cannot well meet the requirement, so that the brain surgery still has a great risk.

Therefore, a drill-through self-stopping skull drill bit and a skull drill are provided.

Disclosure of Invention

The invention aims to provide a skull drill bit capable of automatically stopping drilling and a skull drill, and aims to solve the problem that the electric skull drill provided in the background technology is easy to damage brain tissues after drilling skull.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a bore automatic stop skull drill bit and skull and bore, includes bores the body, and the internally mounted who bores the body has the motor, installs the drill bit that extends to boring the external side of body on the output shaft of motor, bore the inside of body and seted up the slide opening, motor slidable mounting is in the slide opening, the inside still slidable mounting of slide opening has the step motor who is located the motor upside, install the lead screw on step motor's the output shaft, install the thread bush with lead screw threaded connection on the roof of motor, the cushion is installed at the top of slide opening, be equipped with piezoceramics between cushion and the step motor, the start button is installed at the top of boring the body, the circular telegram subassembly of being connected with piezoceramics electricity is installed at the top of boring the body, and start button and circular telegram subassembly are mutually supported.

When step motor and motor are opened, the drill bit keeps rotatory, step motor drive lead screw rotates and drives thread bush and motor and go forward simultaneously, carry out automatic drilling to the skull, the drill bit receives the resistance when moving ahead, the resistance counteracts and produces pressure to piezoceramics on step motor, piezoceramics produces the electric current and makes circular telegram subassembly and start button mutually support and keep the power supply, after the skull is worn to the brill, piezoceramics no longer receives pressure, promptly no longer produce electric current, circular telegram subassembly loses the effect, the circuit disconnection, step motor and motor stop work, the drill bit is no longer gone forward, avoid injuring brain tissue. The design can effectively prevent the brain tissue from being damaged after the drill bit drills through the skull, the operation is simple, the safety factor is improved, and the success rate of the operation is increased.

Preferably, the circular telegram subassembly is including installing the electro-magnet at the brill body top, electro-magnet and piezoceramics electric connection, bore the top of the body and offer the jack with the start button adaptation, the jack is located the electro-magnet directly over, the start button is galvanized iron material, be equipped with the top piece on the diapire of jack, all install the contact electrode of mutually supporting on the bottom of start button and the diapire of jack, step motor and motor open when two contact electrode contact.

When drilling the skull, at first press the start button, two contact electrode contacts open step motor and motor, the drill bit is driven forward by step motor in rotatory, begin to drill the skull, piezoceramics receives pressure to produce the electric current when the drill bit creeps into, make the electro-magnet produce magnetic force, adsorb the start button of galvanized iron material, two contact electrode keep contacting, can loosen the start button this moment, the drill bit continues to creep into, after boring the skull, the drill bit no longer receives pressure, piezoceramics no longer produces the electric current, the electro-magnet loses magnetism, start button is jack-up under the effect of top piece, two contact electrode part, step motor and motor outage, the drill bit then stop work, prevent to cause destruction to brain tissue. The resistance that the circular telegram subassembly experienced the drill bit through piezoceramics to control the operating condition of step motor and motor with the help of the electro-magnet, realized boring the effect of stopping automatically ingeniously, promoted factor of safety.

Preferably, the outer walls of the stepping motor and the motor are provided with limiting blocks, the inner wall of the sliding hole is provided with limiting sliding grooves matched with the limiting blocks, and the limiting sliding grooves limit the stepping motor to move downwards.

The movable range of the motor is limited through the matching of the limiting block and the limiting groove, the motor can only move up and down, when the stepping motor drives the screw rod to rotate, the threaded sleeve and the motor can stably move up and down and cannot rotate, and the stability in working is improved. Step motor can shift up certain distance, and when the drill bit received the resistance, step motor can receive reaction force to shift up small distance and produce pressure to piezoceramics, ensures that step motor can produce accurate pressure to piezoceramics, and then guarantees that the circular telegram subassembly can stable work.

Preferably, the bottom of the drill body is provided with an adsorption port, the inner wall of the adsorption port is provided with a piston cylinder communicated with the outer side of the drill body, a piston is arranged in the piston cylinder in a matched mode, the piston is connected with a piston rod extending to the outer side of the drill body, a deflector rod is rotatably mounted on the outer wall of the drill body, a deflector groove matched with the deflector rod is formed in the piston rod, the outer wall of the drill body is provided with an operation port for the deflector rod to move, and a one-way stop block for fixing the position of the deflector rod is arranged in the operation port.

When the drill is used for drilling the skull of a patient, the tip end of the drill bit can be aligned to the drilling position, then the drill body is pressed down with a little force, the bottom end of the drill body is tightly attached to the surface of the skull, then the deflector rod is pressed into the operation opening, the piston rod is stirred outwards by the bottom end of the deflector rod, the space in the adsorption opening is pumped into negative pressure, the bottom end of the drill body is firmly adsorbed on the skull of the patient, and at the moment, the drill body can be released. The design not only improves the stability during drilling, makes the drilling position not prone to offset, but also is more convenient to use and not prone to error.

Preferably, the one-way stop block is of a wedge-shaped structure, the one-way stop block is elastically inserted into the inner side wall of the operation opening, and a spring fixedly connected with the shift lever is installed on the bottom wall of the operation opening.

When the top with the driving lever is impressed inside the operation opening, one-way dog is pushed down gradually because the wedge structure of self, and when the driving lever arrived one-way dog rear, one-way dog lost to block and pops out, and the plane at its back blocks the driving lever, fixes the position of driving lever, keeps the position of piston rod, and then keeps adsorbing intraoral negative pressure state, and it is more convenient to use.

Preferably, the bottom end of the drill body is provided with an observation port, the drill bit extends outwards through the observation port, the bottom end of the drill body is arc-shaped and sunken upwards, and the bottom end of the drill body is provided with a sealing gasket in an attached manner.

The design of viewing aperture conveniently adjusts the drilling position of drill bit to the bone bits that conveniently clear up drilled out. The bottom end of the drill body is designed into a slightly concave arc shape, so that the drill body can be more attached to the surface of a skull, the sealing performance when the drill body is contacted with the surface of the skull is further improved through the design of the sealing gasket, the stability when negative pressure is pumped into the adsorption port is further ensured, and the air leakage is avoided.

The invention also provides a skull drill bit which is suitable for the skull drill.

Compared with the prior art, the invention has the beneficial effects that:

1. the stepping motor drives the motor to move to drill the skull, when the stepping motor receives forward resistance, the stepping motor receives reaction force, the piezoelectric ceramic receives pressure to generate current, the starting button is adsorbed by the electromagnet to keep the circuit switched on, when the drill bit does not receive resistance after drilling through the skull, the electromagnet loses magnetism, the circuit is switched off, the stepping motor and the motor stop working, the drill bit does not advance any more, and the brain tissue is prevented from being damaged.

2. The adsorption port is formed in the bottom end of the drill body, the piston rod is controlled to move outwards through the deflector rod to exhaust air inside the adsorption port, the drill body is firmly adsorbed on the surface of a skull, the stability of a drilling position is guaranteed, meanwhile, the drill body does not need to be held after the start button is pressed initially, the drill body automatically completes subsequent drilling and drill stopping actions, and the drill is convenient to use, flexible and stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a front cross-sectional view of the present invention;

FIG. 4 is a bottom view of the present invention;

FIG. 5 is an enlarged view of the structure at A of the present invention;

FIG. 6 is a schematic view of the structure of the one-way stopper of the present invention;

FIG. 7 is an enlarged view of the structure of the present invention at B;

fig. 8 is an enlarged view of the structure at C of the present invention.

In the figure: 1. a drill body; 2. a slide hole; 3. a stepping motor; 4. a screw rod; 5. a threaded sleeve; 6. a motor; 7. a drill bit; 8. a viewing port; 9. an adsorption port; 10. a piston cylinder; 11. a piston rod; 12. a deflector rod; 13. a piston; 14. a limiting chute; 15. a start button; 16. an electromagnet; 17. a topsheet; 18. a contact electrode; 19. a one-way stopper; 20. a spring; 21. an operation port; 22. piezoelectric ceramics; 23. a soft cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a drill for drilling through a skull bone and a skull bone drill, which comprises the following technical solutions:

the utility model provides a bore through automatic stop skull drill bit and skull and bore, including boring body 1, the internally mounted of boring body 1 has motor 6, install the drill bit 7 that extends to the boring body 1 outside on the output shaft of motor 6, slide opening 2 has been seted up to the inside of boring body 1, motor 6 slidable mounting is in slide opening 2, the inside still slidable mounting of slide opening 2 has the step motor 3 that is located motor 6 upside, install lead screw 4 on the output shaft of step motor 3, install the thread bush 5 with lead screw 4 threaded connection on the roof of motor 6, cushion 23 is installed at the top of slide opening 2, be equipped with piezoceramics 22 between cushion 23 and the step motor 3, start button 15 is installed at the top of boring body 1, the circular telegram subassembly that is connected with piezoceramics 22 electricity is installed at the top of boring body 1, and start button 15 mutually supports with the circular telegram subassembly.

When step motor 3 and motor 6 open, drill bit 7 keeps rotatory, step motor 3 drives lead screw 4 and rotates and drive thread bush 5 and motor 6 and move ahead simultaneously, carry out automatic drilling to the skull, drill bit 7 receives the resistance when moving ahead, the resistance counteracts and produces pressure to piezoceramics 22 on step motor 3, piezoceramics 22 produces the electric current and makes circular telegram subassembly and start button 15 mutually support and keep the power supply, after boring the skull, piezoceramics 22 no longer receives pressure, no longer produce the electric current promptly, circular telegram subassembly loses effect, the circuit disconnection, step motor 3 and motor 6 stop work, the drill bit no longer moves ahead, avoid injuring brain tissue. The design can effectively prevent the brain tissue from being damaged after the drill bit 7 drills through the skull, the operation is simple, the safety factor is improved, and the success rate of the operation is increased.

Referring to fig. 3 and 7, as an embodiment of the present invention, the energizing assembly includes an electromagnet 16 installed on the top of the drill body 1, the electromagnet 16 is electrically connected to the piezoelectric ceramic 22, the top end of the drill body 1 is provided with a jack adapted to the start button 15, the jack is located right above the electromagnet 16, the start button 15 is made of galvanized iron, the bottom wall of the jack is provided with a top plate 17, the bottom end of the start button 15 and the bottom wall of the jack are both provided with contact electrodes 18 that are matched with each other, and the stepping motor 3 and the motor 6 are turned on when the two contact electrodes 18 are in contact.

When the skull is drilled, firstly, the starting button 15 is pressed, the two contact electrodes 18 are contacted to start the stepping motor 3 and the motor 6, the drill bit 7 is driven forwards by the stepping motor 3 while rotating to start drilling the skull, the piezoelectric ceramic 22 is subjected to pressure to generate current when the drill bit 7 drills, the electromagnet 16 generates magnetic force to adsorb the starting button 15 made of galvanized iron, the two contact electrodes 18 are kept contacted, at the moment, the starting button 15 can be released, the drill bit 7 continues to drill, after the skull is drilled, the drill bit 7 is not subjected to pressure, the piezoelectric ceramic 22 does not generate current any more, the electromagnet 16 loses magnetism, the starting button 15 is jacked up under the action of the top plate 17, the two contact electrodes 18 are separated, the stepping motor 3 and the motor 6 are powered off, and the drill bit 7 stops working to prevent damage to brain tissues. The electrifying assembly senses the resistance of the drill bit 7 through the piezoelectric ceramics 22 and controls the working states of the stepping motor 3 and the motor 6 by means of the electromagnet 16, so that the effect of automatic drilling stop is ingeniously realized, and the safety factor is improved.

As an embodiment of the present invention, referring to fig. 1-3, the outer walls of the stepping motor 3 and the motor 6 are both provided with a limiting block, the inner wall of the sliding hole 2 is respectively provided with a limiting sliding chute 14 adapted to the limiting block, and the limiting sliding chute 14 limits the stepping motor 3 to move down.

The movable range of the motor 6 is limited by the matching of the limiting block and the limiting groove 14, so that the motor 6 can only move up and down, when the stepping motor 3 drives the screw rod 4 to rotate, the thread bush 5 and the motor 6 can stably move up and down without rotating, and the stability in working is improved. Stepping motor 3 can move up a certain distance, and when drill bit 7 received the resistance, stepping motor 3 can receive reaction force to move up the tiny distance and produce pressure to piezoceramics 22, ensures that stepping motor 3 can produce accurate pressure to piezoceramics 22, and then guarantees that the circular telegram subassembly can work stably.

Referring to fig. 3, as an embodiment of the present invention, an adsorption port 9 is formed at the bottom end of a drill body 1, a piston cylinder 10 communicated with the outside of the drill body 1 is arranged on the inner wall of the adsorption port 9, a piston 13 is arranged inside the piston cylinder 10, a piston rod 11 extending to the outside of the drill body 1 is connected to the piston 13, a shift lever 12 is rotatably mounted on the outer wall of the drill body 1, a shift groove adapted to the shift lever 12 is formed in the piston rod 11, an operation port 21 for moving the shift lever 12 is formed in the outer wall of the drill body 1, and a one-way stopper 19 for fixing the position of the shift lever 12 is arranged inside the operation port 21.

When the skull drill is used for drilling a skull of a patient, the tip of the drill bit 7 can be aligned with the drilling position, then the drill body 1 is pressed down with slight force, so that the bottom end of the drill body 1 is tightly attached to the surface of the skull, the deflector rod 12 is pressed into the operation opening 21, the piston rod 11 is stirred outwards by the bottom end of the deflector rod 12, the space in the adsorption opening 9 is pumped into negative pressure, so that the bottom end of the drill body 1 is firmly adsorbed on the skull of the patient, and at the moment, the drill body 1 can be released. The design not only improves the stability during drilling, makes the drilling position not prone to offset, but also is more convenient to use and not prone to error.

Referring to fig. 5, as an embodiment of the present invention, the one-way stopper 19 is a wedge-shaped structure, the one-way stopper 19 is elastically inserted into an inner sidewall of the operation opening 21, and a spring 20 fixedly connected to the shift lever 12 is installed on a bottom wall of the operation opening 21.

When the top of the driving lever 12 is pressed into the operation opening 21, the one-way stop block 19 is gradually pressed down due to the self wedge-shaped structure, when the driving lever 12 reaches the rear part of the one-way stop block 19, the one-way stop block 19 loses the blocking and pops up, the plane on the back of the one-way stop block blocks the driving lever 12, the position of the driving lever 12 is fixed, the position of the piston rod 11 is kept, and then the negative pressure state in the adsorption opening 9 is kept, so that the use is more convenient.

Referring to fig. 2, as an embodiment of the present invention, a viewing port 8 is formed at the bottom end of the drill body 1, the drill bit 7 extends outward through the viewing port 8, the bottom end of the drill body 1 is curved and recessed upward, and a sealing gasket is attached to the bottom end of the drill body 1.

The design of the observation port 8 facilitates adjustment of the drilling position of the drill bit 7 and cleaning of drilled bone fragments. The bottom end of the drill body 1 is designed into a slightly concave arc shape so that the drill body can be more attached to the surface of a skull, the sealing performance when the drill body is contacted with the surface of the skull is further improved through the design of the sealing gasket, the stability when negative pressure is pumped into the adsorption port 9 is further ensured, and the air leakage is avoided.

The invention also provides a skull drill bit which is suitable for the skull drill.

The working principle is as follows: when a skull drilling operation is required to be performed on a patient, after a preparation procedure is completed, the drill body 1 is vertically placed on the surface of a skull, then the drill body 1 is slightly pressed downwards, the deflector rod 12 is pressed into the operation opening 21, the deflector rod 12 is fixed through the one-way stop block 19, negative pressure pumping operation on the interior of the adsorption opening 9 is completed, and the drill body 1 is stably adsorbed on the surface of the skull. Then the starting button 15 is pressed, the two contact electrodes 18 are contacted to start the stepping motor 3 and the motor 6, the drill bit 7 is driven forwards by the stepping motor 3 while rotating, the skull is drilled, the piezoelectric ceramic 22 is subjected to pressure to generate current when the drill bit 7 drills, the electromagnet 16 generates magnetic force to adsorb the starting button 15 made of galvanized iron, the two contact electrodes 18 are kept in contact, the starting button 15 can be released at the moment, the drill bit 7 continues to drill, after the drill bit 7 is not subjected to pressure any more after drilling through the skull, the piezoelectric ceramic 22 does not generate current any more, the electromagnet 16 loses magnetism, the starting button 15 is jacked up under the action of the top plate 17, the two contact electrodes 18 are separated, the stepping motor 3 and the motor 6 are powered off, and the drill bit 7 stops working to prevent damage to brain tissues. It should be noted that another button is arranged on the drill body 1 to control the stepping motor 3 to rotate reversely, and the drill bit 7 is retracted after the drilling is finished, so as to prepare for the next operation.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.