CN112604198A

CN112604198A - Safety auxiliary device capable of climbing communication tower

Info

Publication number: CN112604198A
Application number: CN202011534307.1A
Authority: CN
Inventors: 张连梅
Original assignee: Nanjing Qilintian Communication Technology Co ltd
Current assignee: Nanjing Qilintian Communication Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-06

Abstract

The invention relates to the field of electronic information communication equipment, and discloses a safety auxiliary device capable of climbing a communication tower, which comprises a main box body, wherein the left end surface of the main box body is fixedly connected with a fixed base, a safety pull rope is wound on the fixed base, the lower end surface of the main box body is fixedly connected with a connecting block, the right end surface of the main box body is connected with tower legs in a sliding fit manner, a fixed frame is fixedly connected among the tower legs, a roller cavity with a rightward opening is arranged in the main box body, the front side of the roller cavity is positioned in the main box body, a right-side bevel gear cavity is arranged in the front side of the roller cavity, a safety auxiliary device following climbing is additionally arranged when a maintenance person climbs the communication tower, the device is always fixed on one side of the communication tower, the purpose that the maintenance person does not need to suspend one hand when climbing, the other hand manually fixes a safety lock catch at the fixed frame, meanwhile, the device is installed on the communication tower and does not interfere with the process of climbing the communication tower by maintenance personnel.

Description

Safety auxiliary device capable of climbing communication tower

Technical Field

The invention relates to the field of electronic communication equipment, in particular to a safety auxiliary device capable of climbing a communication tower.

Background

The height of communication tower is higher, in case need the maintenance personal to climb the platform of eminence and overhaul when breaking down, one side of general communication tower all is equipped with the cat ladder that supplies the maintenance personal to climb, but does not dispose the safety device who climbs the in-process needs, climb under the in-process needs maintenance personal one hand unsettled state, manual fix the mount department between the adjacent tower leg of communication tower with safe hasp, do not have the unexpected emergence of causing easily under the fixed condition of safety arrangement this moment.

Disclosure of Invention

The invention aims to provide a safety auxiliary device capable of climbing a communication tower, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a safety auxiliary device capable of climbing a communication tower, which comprises a main box body, wherein the left end surface of the main box body is fixedly connected with a fixed base, a safety pull rope is wound on the fixed base, the lower end surface of the main box body is fixedly connected with a connecting block, the right end surface of the main box body is connected with tower legs in a sliding fit manner, a fixed frame is fixedly connected between the tower legs, a roller cavity with a rightward opening is arranged in the main box body, a right bevel gear cavity is arranged in the front of the roller cavity and positioned in the main box body, a middle bevel gear cavity is arranged on the left side of the right bevel gear cavity, a motor is fixedly connected in the main box body and positioned on the left side of the middle bevel gear cavity, a conveying belt cavity is arranged on the rear side of the right bevel gear cavity, two displacement control cavities which are vertically symmetrical relative to the middle bevel gear cavity and have an outward opening are, the right end face of the motor is fixedly connected with a motor shaft which extends rightwards and penetrates through the middle bevel gear cavity to the right bevel gear cavity, the rear end wall of the right bevel gear cavity is connected with a transmission shaft which extends forwards into the right bevel gear cavity and extends backwards through the roller cavity to the conveyor belt cavity in a rotating fit manner, a friction roller is fixedly connected on the transmission shaft and positioned in the roller cavity, a belt wheel is fixedly connected on the transmission shaft and positioned in the conveyor belt cavity, the belt pulleys are connected with a conveying belt in a power fit manner, the upper end wall and the lower end wall of the middle bevel gear cavity are connected with two driven shafts which extend into the middle bevel gear cavity in the direction close to the motor shaft and extend into the displacement control cavity in the direction far away from the motor shaft in a rotating fit manner, the left end wall of the displacement control cavity is connected with a rotating shaft which extends rightwards to the right end wall of the displacement control cavity in a rotating matching mode.

On the basis of the technical scheme, a driving gear shaft sleeve is connected to the motor shaft and located in the middle bevel gear cavity in a spline fit mode, a driving bevel gear is fixedly connected to the outer end face of the driving gear shaft sleeve, a driving gear base is connected to the left end of the driving gear shaft sleeve in a rotating fit mode, a driving gear base is fixedly connected between the left end face of the driving gear base and the left end wall of the middle bevel gear cavity, a symmetrical bevel gear which can be meshed with the driving bevel gear is fixedly connected to the end, close to the motor shaft, of the driven shaft, and a rear bevel gear is fixedly connected to the front end of the transmission shaft.

On the basis of the technical scheme, the right end of the motor shaft is in spline fit connection with a front side gear shaft sleeve, the outer end face of the front side gear shaft sleeve is fixedly connected with a front side bevel gear which can be meshed with the rear side bevel gear, the left end of the front side gear shaft sleeve is in rotating fit connection with a front side gear magnet, the left end of the front side gear magnet is fixedly connected with a front side gear spring between the left end wall of the right side bevel gear cavity and the left end of the front side gear magnet, and a gear electromagnet is fixedly connected into the left end wall of the right side bevel gear cavity.

On the basis of the technical scheme, the driven shaft is far away from the tail end of one side of the motor shaft is in spline fit connection with an upper side gear shaft sleeve, the outer end face of the upper side gear shaft sleeve is fixedly connected with an upper side bevel gear, the upper side gear shaft sleeve is close to the tail end of one end of the motor shaft and is in running fit connection with an upper side gear magnet, the upper side gear magnet is close to the end face of the motor shaft and the displacement control cavity is close to a fixedly connected upper side gear spring between the end walls of the motor shaft, the displacement control cavity is close to a built-in electromagnet fixedly connected in the end wall of the motor shaft, the rotating shaft is fixedly connected with a gear electromagnet capable of being meshed with the upper side bevel gear, the rotating shaft is in.

On the basis of the technical scheme, the right end face of the connecting block is abutted against the sliding shaft sleeve, a sliding shaft sleeve cavity which is communicated from left to right is arranged in the sliding shaft sleeve, the sliding shaft sleeve cavity is connected with a fixed shaft in a sliding fit manner, the fixed shaft is provided with a sliding pin groove which is communicated up and down, a sliding pin is connected in the sliding pin groove in a sliding fit manner, a return spring is fixedly connected between the outer end surface of the sliding pin and the end wall of the sliding pin groove, a rotary paw is hinged on the sliding pin and positioned at the upper side of the fixed shaft, an annular clamping block is fixedly connected on the rotary paw, an inductor paw is hinged on the sliding pin and positioned between the rotating paw and the fixed shaft, the inductor gripper is characterized in that an annular groove with an outward opening is formed in the inductor gripper, a starting button is fixedly connected to the left end wall of the annular groove, and a distance inductor is fixedly connected to the inside of the inductor gripper.

On the basis of the technical scheme, the downside upside gear magnet is close to on the terminal surface of motor shaft with the upside gear magnet is close to fixedly connected with upside gear stay cord between the terminal surface of motor shaft, the left end face of driving gear base with fixedly connected with driving gear stay cord between the left end face of front side gear magnet, be equipped with the ascending spacing fixed cavity of opening on the sliding shaft, displacement control chamber upside intercommunication be equipped with the spacing slip chamber that spacing fixed cavity corresponds, spacing slip intracavity sliding fit is connected with the stopper, the up end of stopper with fixedly connected with stopper spring between the up end wall in spacing slip chamber, fixedly connected with spacing sensor in the up end wall in spacing slip chamber.

The invention has the beneficial effects that: through install the safety auxiliary device who follows the climbing additional when maintenance personal scrambles the communication tower, make the device fix the one side at the communication tower all the time, realized that maintenance personal does not need under the unsettled state of a hand when the climbing, the manual mount department of fixing the safety lock between the adjacent tower leg of communication tower of another hand, reached the personal safety guarantee to maintenance personal, the device is installed on the communication tower simultaneously and is scrambleed the process mutually noninterfere of communication tower with maintenance personal.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of a safety auxiliary device capable of climbing a communication tower according to the invention.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

Fig. 3 is a schematic sectional structure view of B-B in fig. 2.

Fig. 4 is a schematic sectional structure view of C-C in fig. 2.

Fig. 5 is a schematic cross-sectional view of D-D in fig. 3.

Fig. 6 is an enlarged schematic view of fig. 3 at E.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Combine accompanying drawings 1-6 a safety auxiliary device that can climb communication tower, including the main tank body 10, the left end face fixedly connected with unable adjustment base 11 of the main tank body 10, the winding has safe stay cord 12 on unable adjustment base 11, the lower terminal surface fixedly connected with connecting block 42 of the main tank body 10, the right-hand member face sliding fit of the main tank body 10 is connected with tower leg 14, fixedly connected with mount 13 between tower leg 14, be equipped with opening right roller chamber 15 in the main tank body 10, roller chamber 15's front side just is located be equipped with right side bevel gear chamber 25 in the main tank body 10, right side bevel gear chamber 25's left side is equipped with middle bevel gear chamber 23, just be located in the main tank body 10 the left side fixedly connected with motor 18 in middle bevel gear chamber 23, right side bevel gear chamber 25's rear side is equipped with conveyer belt chamber 26, be equipped with in the main tank body 10 two about middle bevel gear chamber 23 longitudinal symmetry and the outside displacement control of opening A cavity 56, a right end face of the motor 18 is fixedly connected with a motor shaft 22 which extends rightwards to penetrate through the middle bevel gear cavity 23 to the right side bevel gear cavity 25, a rear end wall of the right side bevel gear cavity 25 is connected with a transmission shaft 17 which extends forwards to the right side bevel gear cavity 25 and extends backwards to penetrate through the roller cavity 15 to the conveying belt cavity 26, the transmission shaft 17 is arranged on the transmission shaft 17 and is fixedly connected with a friction roller 16 in the roller cavity 15, the transmission shaft 17 is arranged on the conveying belt cavity 26 and is fixedly connected with a belt wheel 29, a conveying belt 28 is connected between the belt wheels 29 in a power fit manner, an upper end wall and a lower end wall of the middle bevel gear cavity 23 are connected with two driven shafts 50 which extend to the middle bevel gear cavity 23 and extend to the direction far away from the motor shaft 22 to the displacement control cavity 56 in a rotating fit manner, a rotating shaft 57 extending rightwards to the right end wall of the displacement control cavity 56 is connected to the left end wall of the displacement control cavity 56 in a rotating fit mode.

In addition, in one embodiment, a driving gear shaft sleeve 24 is connected to the motor shaft 22 and located in the intermediate bevel gear cavity 23 in a spline fit manner, a driving bevel gear 21 is fixedly connected to an outer end surface of the driving gear shaft sleeve 24, a driving gear base 20 is connected to a left end of the driving gear shaft sleeve 24 in a rotating fit manner, a driving gear base 20 is fixedly connected between a left end surface of the driving gear base 20 and a left end wall of the intermediate bevel gear cavity 23, a symmetrical bevel gear 49 capable of meshing with the driving bevel gear 21 is fixedly connected to a side end of the driven shaft 50 close to the motor shaft 22, and a rear bevel gear 27 is fixedly connected to a front end of the transmission shaft 17.

In addition, in one embodiment, a front gear sleeve 47 is spline-fitted to a right end of the motor shaft 22, a front bevel gear 45 capable of meshing with the rear bevel gear 27 is fixedly connected to an outer end surface of the front gear sleeve 47, a front gear magnet 46 is rotatably fitted to a left end of the front gear sleeve 47, a front gear spring 48 is fixedly connected between a left end of the front gear magnet 46 and a left end wall of the right bevel gear cavity 25, and a gear electromagnet 52 is fixedly connected to an inside of the left end wall of the right bevel gear cavity 25.

In addition, in one embodiment, the end of the driven shaft 50 away from the motor shaft 22 is spline-connected with an upper gear sleeve 55, the outer end surface of the upper gear shaft sleeve 55 is fixedly connected with an upper bevel gear 60, the end of the upper gear shaft sleeve 55 close to the motor shaft 22 is connected with an upper gear magnet 59 in a rotating fit manner, an upper gear spring 54 is fixedly connected between the end surface of the upper gear magnet 59 close to the motor shaft 22 and the end wall of the displacement control chamber 56 close to the motor shaft 22, a built-in electromagnet 62 is fixedly connected in the end wall of the displacement control chamber 56 near the motor shaft 22, a gear electromagnet 52 capable of meshing with the upper bevel gear 60 is fixedly connected to the rotating shaft 57, the rotating shaft 57 is connected with a sliding shaft 58 in a threaded fit manner, and the lower end surface of the sliding shaft 58 is fixedly connected with a sliding shaft sleeve 31.

In addition, in one embodiment, the right end surface of the connecting block 42 abuts against the sliding shaft sleeve 31, a sliding shaft sleeve cavity 32 penetrating from left to right is arranged in the sliding shaft sleeve 31, a fixed shaft 41 is connected in a sliding fit manner in the sliding shaft sleeve cavity 32, a sliding pin groove 36 penetrating from top to bottom is arranged on the fixed shaft 41, a sliding pin 35 is connected in a sliding fit manner in the sliding pin groove 36, a return spring 40 is fixedly connected between the outer end surface of the sliding pin 35 and the end wall of the sliding pin groove 36, a rotating claw 33 is hinged on the sliding pin 35 and positioned on the upper side of the fixed shaft 41, an annular clamping block 34 is fixedly connected on the rotating claw 33, an inductor claw 39 is hinged on the sliding pin 35 and positioned between the rotating claw 33 and the fixed shaft 41, an annular groove 37 with an outward opening is arranged on the inductor claw 39, and a start button 38 is fixedly connected on the left end wall of the annular groove 37, a distance sensor 51 is fixedly connected in the sensor gripper 39.

In addition, in an embodiment, an upper gear rope 53 is fixedly connected between the end surface of the lower gear magnet 59 close to the motor shaft 22 and the end surface of the upper gear magnet 59 close to the motor shaft 22, a driving gear rope 63 is fixedly connected between the left end surface of the driving gear base 20 and the left end surface of the front gear magnet 46, a limiting fixed cavity 61 with an upward opening is arranged on the sliding shaft 58, a limiting sliding cavity 66 corresponding to the limiting fixed cavity 61 is arranged on the upper side of the displacement control cavity 56 in a communicating manner, a limiting block 64 is connected in the limiting sliding cavity 66 in a sliding fit manner, a limiting block spring 65 is fixedly connected between the upper end surface of the limiting block 64 and the upper end wall of the limiting sliding cavity 66, and a limiting sensor 67 is fixedly connected in the upper end wall of the limiting sliding cavity 66.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-6, when the device of the present invention is in the initial state, the sensor gripper 39 is in the state of abutting against the rotating gripper 33 to form a closed loop, the front bevel gear 45 and the rear bevel gear 27 are in the engaged state, the drive bevel gear 21 and the symmetrical bevel gear 49 are in the disengaged state, the rotating gripper 33 and the sensor gripper 39 are in the closed state, and the annular latch 34 is latched into the annular groove 37;

sequence of mechanical actions of the whole device:

when the operation is started, the motor 18 is started to drive the motor shaft 22 to start rotating, the motor shaft 22 rotates to drive the drive bevel gear 21 to start rotating through the drive gear shaft sleeve 24, meanwhile, the motor shaft 22 rotates to drive the front bevel gear 45 to start rotating through the rotation of the front gear shaft sleeve 47, the front bevel gear 45 rotates to drive the rear bevel gear 27 to start rotating, so as to drive the transmission shaft 17 to start rotating, the transmission shaft 17 rotates to drive the friction roller 16 and the belt wheel 29 to start rotating, the belt wheel 29 rotates to drive other belt wheels to start rotating through the conveyor belt 28, so as to drive other friction rollers on the front side to start rotating through the shaft connecting the belt wheel and the friction roller, and the friction roller 16 rotates to drive the main box 10 to move upwards under the friction force between the friction roller 16 and the;

when the distance sensor 51 moving into the upper sensor paw 39 senses the upper fixing frame 13 within a certain distance, the upper limit sensor 67 is triggered to start at a fixed time, so that the limit block 64 overcomes the elastic force of the limit block spring 65 to move towards the direction close to the limit sensor 67 under the attraction of the limit sensor 67, the sliding shaft 58 is not limited at this time, the sensor paw 39 and the rotating paw 33 move leftwards to be opened under the elastic force of the return spring 40, and meanwhile, the sliding shaft sleeve 31 is driven to move leftwards;

the main box body 10 continues to move upwards, after the upper rotating paw 33 and the sensor paw 39 pass through the upper fixing frame 13, the limit sensor 67 is closed, the gear electromagnet 52 is triggered, the front side gear magnet 46 overcomes the elastic force of the front side gear spring 48 to move leftwards under the action of the attractive force of the gear electromagnet 52, meanwhile, the front side bevel gear 45 is driven to move leftwards through the front side gear shaft sleeve 47 until the front side bevel gear 45 is disengaged from the rear side bevel gear 27, the driving gear pull rope 63 is loosened, and the driving gear base 20 drives the driving gear shaft sleeve 24 and the driving bevel gear 21 to move rightwards under the action of the elastic force of the driving gear spring 19 until the driving bevel gear 21 is engaged with the symmetrical bevel gear 49;

the driving bevel gear 21 rotates to drive the symmetrical bevel gear 49 to rotate, so as to drive the driven shaft 50 to start rotating, the driven shaft 50 rotates to drive the upper bevel gear 60 to start rotating through the upper gear shaft sleeve 55, the upper bevel gear 60 rotates to drive the gear electromagnet 52 to start rotating so as to drive the rotating shaft 57 to rotate, the rotating shaft 57 rotates to drive the sliding shaft 58 to start moving rightwards, the sliding shaft 58 moves to drive the sliding shaft sleeve 31 to start moving rightwards along the fixed shaft 41, the sliding shaft sleeve 31 abuts against the rotating claw 33 and the sensor claw 39 in the moving process, the rotating claw 33 and the sliding pin 35 in the sensor claw 39 move rightwards along the sliding pin groove 36 against the elastic force of the return spring 40, so that the rotating claw 33 and the sensor claw 39 surround the tower leg 14 to form a closed loop, at the moment, the limiting block 64 moves downwards into the limiting fixed cavity 61 under the elastic force of the limiting block spring 65, and the, activation button 38 is activated and gear electromagnet 52 is deactivated;

when the distance sensor 51 in the lower sensor gripper 39 senses the upper fixing frame 13 within a certain distance, the lower limit block 64 and the limit sensor 67 are triggered, so that the lower rotary gripper 33 and the sensor gripper 39 are opened when passing through the upper fixing frame 13 and are closed after passing through the fixing frame 13, and the main box body 10 is ensured to be always in a state that the sensor gripper 39 and the rotary gripper 33 on one side are clamped on the tower leg 14 to form a closed loop in the upward movement process, and after the work is finished, the motor 18 is turned off.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can scramble safety auxiliary device of communication tower, includes the main tank body, its characterized in that: the left end face of the main box body is fixedly connected with a fixed base, a safety pull rope is wound on the fixed base, the lower end face of the main box body is fixedly connected with a connecting block, the right end face of the main box body is connected with tower legs in a sliding fit manner, a fixed frame is fixedly connected between the tower legs, a roller cavity with a rightward opening is arranged in the main box body, a right bevel gear cavity is arranged in the front of the roller cavity and is positioned in the main box body, a middle bevel gear cavity is arranged on the left side of the right bevel gear cavity, a motor is fixedly connected in the main box body and is positioned on the left side of the middle bevel gear cavity, a conveyor belt cavity is arranged on the rear side of the right bevel gear cavity, two displacement control cavities which are vertically symmetrical about the middle bevel gear cavity and have an outward opening are arranged in the main box body, and a motor shaft which extends through the middle bevel gear cavity to the right bevel gear cavity is fixedly, the rear end wall normal running fit in right side bevel gear chamber is connected with and extends to forward right side bevel gear intracavity and backward extension run through the roller chamber extremely the transmission shaft in the conveyer belt intracavity, just be located on the transmission shaft the fixedly connected with friction roller in the roller chamber, just be located on the transmission shaft fixedly connected with band pulley on the conveyer belt chamber, power fit is connected with the conveyer belt between the band pulley, the last lower extreme wall normal running fit in middle bevel gear chamber is connected with two and extends to being close to the direction of motor shaft in the middle bevel gear intracavity and to keeping away from the direction of motor shaft extends to the driven shaft in the displacement control intracavity, the left end wall normal running fit in displacement control chamber is connected with and extends to right the pivot of displacement control chamber right end wall.

2. A safety aid for a climbing communication tower, as claimed in claim 1, wherein: the motor shaft is provided with a middle bevel gear cavity, a driving gear shaft sleeve is connected in a spline fit mode in the middle bevel gear cavity, a driving bevel gear is fixedly connected to the outer end face of the driving gear shaft sleeve, a driving gear base is connected to the tail end of the left side of the driving gear shaft sleeve in a rotating fit mode, a driving gear base is fixedly connected between the left end face of the driving gear base and the left end wall of the middle bevel gear cavity, the driven shaft is close to a symmetrical bevel gear which can be meshed with the driving bevel gear, and the tail end of the front side of the transmission shaft is fixedly connected with a rear bevel gear.

3. A safety aid for a climbing communication tower, as claimed in claim 2, wherein: the motor shaft is characterized in that a front-side gear shaft sleeve is in spline fit connection with the right end of the motor shaft, the outer end face of the front-side gear shaft sleeve is fixedly connected with a front-side bevel gear which is meshed with the rear-side bevel gear, the left end of the front-side gear shaft sleeve is connected with a front-side gear magnet in a rotating fit mode, the left end of the front-side gear magnet is fixedly connected with a front-side gear spring between the left end walls of the right bevel gear cavity, and a gear electromagnet is fixedly connected into the left end wall of the right bevel gear cavity.

4. A safety aid for a climbing communication tower, according to claim 3, in which: the driven shaft is kept away from the terminal spline fit connection in one side of motor shaft has upside gear shaft cover, the outer terminal surface fixedly connected with upside bevel gear of upside gear shaft cover, the terminal normal running fit of one end that is close to the motor shaft of upside gear shaft cover is connected with upside gear magnet, upside gear magnet be close to the terminal surface of motor shaft with the displacement control chamber is close to fixedly connected with upside gear spring between the end wall of motor shaft, the displacement control chamber is close to fixedly connected with built-in electro-magnet in the end wall of motor shaft, fixedly connected with in the pivot can with upside bevel gear engaged gear electro-magnet, screw-thread fit connection has the slide shaft in the pivot, the lower terminal surface fixedly connected with slip axle sleeve of slide shaft.

5. A safety aid for a climbing communication tower, as claimed in claim 1, wherein: the right end surface of the connecting block is abutted against the sliding shaft sleeve, a sliding shaft sleeve cavity which is communicated from left to right is arranged in the sliding shaft sleeve, the sliding shaft sleeve cavity is connected with a fixed shaft in a sliding fit manner, the fixed shaft is provided with a sliding pin groove which is communicated up and down, a sliding pin is connected in the sliding pin groove in a sliding fit manner, a return spring is fixedly connected between the outer end surface of the sliding pin and the end wall of the sliding pin groove, a rotary paw is hinged on the sliding pin and positioned at the upper side of the fixed shaft, an annular clamping block is fixedly connected on the rotary paw, an inductor paw is hinged on the sliding pin and positioned between the rotating paw and the fixed shaft, the inductor gripper is characterized in that an annular groove with an outward opening is formed in the inductor gripper, a starting button is fixedly connected to the left end wall of the annular groove, and a distance inductor is fixedly connected to the inside of the inductor gripper.

6. The safety aid device of claim 4, wherein: the downside upside gear magnet is close to with the upside on the terminal surface of motor shaft upside gear magnet is close to fixedly connected with upside gear stay cord between the terminal surface of motor shaft, the left end face of driving gear base with fixedly connected with driving gear stay cord between the left end face of front side gear magnet, be equipped with the ascending spacing fixed chamber of opening on the sliding shaft, displacement control chamber upside intercommunication be equipped with the spacing slip chamber that spacing fixed chamber corresponds, spacing slip intracavity sliding fit is connected with the stopper, the up end of stopper with fixedly connected with stopper spring between the upper end wall in spacing slip chamber, the spacing sensor of fixedly connected with in the upper end wall in spacing slip chamber.