CN112691722B

CN112691722B - Broken recovery plant is pulled out to old and useless cement pole

Info

Publication number: CN112691722B
Application number: CN202110020480.8A
Authority: CN
Inventors: 李荣群
Original assignee: Daqing Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Current assignee: Daqing Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2022-10-18
Anticipated expiration: 2041-01-07
Also published as: CN112691722A

Abstract

The invention discloses a waste cement electric pole pulling, crushing and recycling device which comprises a main body, wherein a pulling cavity with a leftward opening is formed in the left end face of a shell, a pulling moving block which slides with the wall of the pulling cavity in a friction mode is arranged in the pulling cavity, a clamping cavity with a leftward opening is formed in the left end face of the pulling moving block, a pulling and crushing mechanism for pulling out, recovering and crushing waste cement electric poles is arranged in the clamping cavity, a driving cavity is formed in the right side of the shell, and a driving control mechanism for providing power and control for the pulling and crushing mechanism is arranged in the driving cavity.

Description

Broken recovery plant is pulled out to old and useless cement pole

Technical Field

The invention relates to the field of electric power, in particular to equipment for pulling, crushing and recycling waste cement electric poles.

Background

At present, cement electric poles are still applied in rural areas and fields far away from cities all the time, and are always the mainstream of power signal transmission because the cement electric poles are very easy to manufacture, namely, a plurality of steel bars are used as frameworks when the cement electric poles are moved, and then the cement electric poles are directly formed by injecting the cement, so that the cost is extremely low.

But when the concrete is exposed to long-term wind and rain, the concrete becomes aged and cracked, so that the concrete can be very dangerous to topple over at any time, the concrete needs to be pulled out or broken, then the cement is broken, then the reinforcing steel bars are recycled, the process becomes very dangerous if the concrete is manually treated, and time is consumed in the process of sundry crushing.

Disclosure of Invention

The invention aims to solve the technical problem of providing equipment for pulling, crushing and recycling waste cement electric poles, and overcoming the problems.

The invention is realized by the following technical scheme.

The invention relates to a pulling, crushing and recycling device for waste cement electric poles, which comprises a machine shell, wherein a pulling cavity with a leftward opening is arranged in the left end surface of the machine shell, a pulling moving block which slides with the wall of the pulling cavity in a friction way is arranged in the pulling cavity, a clamping cavity with a leftward opening is arranged in the left end surface of the pulling moving block, a pulling-up crushing mechanism for pulling out, recovering and damaging the waste cement electric poles is arranged in the clamping cavity, a driving cavity is arranged on the right side of the shell, a driving control mechanism for providing power and control for the pulling-up crushing mechanism is arranged in the driving cavity, the pulling-up crushing mechanism comprises a clamping block cavity which is arranged in the right cavity wall of the clamping cavity, is communicated with the clamping cavity and is provided with an opening at the right end, a clamping screw rod which is rotationally connected with the front and rear front walls is arranged in the clamping block cavity, a clamping driven belt groove is arranged at the front end of the clamping screw rod, the clamping driven belt is internally connected with a clamping power belt in a friction way, the clamping screw rod is also provided with two clamping blocks which are in threaded connection with the clamping screw rod and the left end of which extends into the clamping cavity, the left ends of the clamping blocks are provided with clamping grooves, the right cavity wall at the lower end of the pulling-up cavity is internally provided with a cutting block cavity communicated with the pulling-up cavity, a cutting push block with the left end extending out of the cavity is arranged in the cutting block cavity, a cutting block spring is fixedly connected to the right end face of the cutting push block, the other end of the cutting block spring is fixed on the right cavity wall of the cutting block cavity, the right end surface of the cutting push block is also fixedly connected with a cutting block pull rope, a blade cavity with a leftward opening is arranged in the left end face of the cutting push block, a blade shaft rotationally connected with the upper cavity wall and the lower cavity wall is arranged in the blade cavity, the blade is fixed with the blade on the blade axle, the blade axle lower extreme is equipped with the blade driven groove, blade power belt is connected with to blade driven inslot friction.

The blade cavity right cavity wall is internally provided with a blade motor, the lower end of the blade motor is rotatably connected with a blade driving shaft, the blade driving shaft is provided with a blade power belt groove, the blade power belt groove is internally and frictionally connected with a blade power belt, a left opening push block cavity is arranged in the left end face of the cutting push block, a push block with the left end extending out of the cavity is arranged in the push block cavity, the right end face of the push block is fixedly connected with a push block spring, the other end of the push block spring is fixed on the left end face of the push block cavity, crushing block cavities communicated with the push block spring are arranged in the front cavity wall and the rear cavity wall of the pulling cavity, the front end of each crushing block cavity is internally provided with a crushing block, the crushing rear end face of each crushing block is fixedly connected with a crushing spring, the other end of each crushing spring is fixed on the rear cavity wall of each crushing block cavity, and the rear end face of each crushing pull rope is fixedly connected with a crushing pull rope.

The driving control mechanism comprises a damaged power cavity which is arranged in the rear cavity wall of the driving cavity and communicated with the driving cavity, a clamping driving cavity which is communicated with the driving cavity is further arranged in the front cavity wall of the driving cavity, a driving motor is fixedly connected to the front cavity wall of the driving cavity, a main shaft of which the rear end extends into the damaged power cavity is in power connection with the rear end face of the driving motor, a driving gear is fixed to the front end of the main shaft, a crushing wheel is fixed to the rear end of the main shaft, a crushing sleeve is connected to the rear end face of the crushing wheel in a rotating mode, a crushing pull rope is fixedly connected to the crushing sleeve, a pull-up power shaft of which the rear end extends into the rear cavity wall of the driving cavity is arranged on the left side of the driving cavity, and a pull-up lifting gear which is meshed with the right end face of the pull-up moving block is fixed to the rear end of the pull-up power shaft.

The pulling-up power shaft front end spline is connected with a pulling-up sliding gear meshed with the driving gear, a pulling-up sliding gear groove with a backward opening is formed in the rear end face of the pulling-up sliding gear, a pulling-up sliding gear block is arranged in the pulling-up sliding gear groove, a pulling-up sliding gear spring is fixedly connected with the rear end face of the pulling-up sliding gear block, the other end of the pulling-up sliding gear spring is fixed on the rear cavity wall of the driving cavity, a pulling-up electromagnet is further fixed on the left rear cavity wall of the driving cavity, a control groove communicated with the driving cavity is formed in the right front cavity wall of the driving cavity, a control shaft is slidably connected in the control groove, a control rotating block is rotatably connected on the rear end face of the control shaft, a control shaft spring is fixedly connected on the rear end face of the control rotating block, and the other end of the control shaft spring is fixed on the rear cavity wall of the control groove.

Profitable, control shaft front end fixedly connected with drive gear meshed control gear, the control shaft rear end is fixed with the control locking wheel, the control shaft rear end is fixedly connected with control rope winding wheel still, fixedly connected with on the control rope winding wheel the cutting block stay cord, it has the front end to stretch into to go back power connection on the driving motor front end the tight drive shaft of clamp in the tight drive chamber, it presss from both sides tight drive gear to press from both sides tight drive shaft front end, it is equipped with the tight driven shaft of clamp that the front end stretches into its chamber wall to press from both sides tight drive chamber left, it is fixed with to press from both sides tight driven shaft rear end press from both sides tight driven gear of tight drive gear meshing, it is equipped with and presss from both sides tight race of power to press from both sides tight driven shaft front end, it has to press from both sides tight race power belt to press from both sides the friction connection in the tight race of race power belt.

The invention has the beneficial effects that: the device simple structure, the simple operation, wherein including pulling out damage mechanism, this mechanism will old and useless wire pole is automatic to be pulled out, carries out holistic crushing and wherein reinforcing bar with it again and cuts off, this process bulk operation, and efficiency is very high, is equipped with control actuating mechanism wherein, effectively carries out work with each mechanism in this machine, has reached safe effective, high-efficient convenient beneficial effect.

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.

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure C-C shown in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the D-D structure of FIG. 4 according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of structure E in FIG. 1 according to an embodiment of the present invention;

fig. 7 is an enlarged schematic view of the structure F in fig. 3 according to the embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below coincide with the up, down, left, right, and front-back directions in the projection relation of fig. 1 itself.

The waste cement electric pole pulling, crushing and recycling device comprises a machine shell 10, wherein a pulling cavity 16 with a leftward opening is formed in the left end face of the machine shell 10, a pulling moving block 11 which slides with the wall of the pulling cavity 16 in a friction manner is arranged in the pulling cavity 16, a clamping cavity 15 with a leftward opening is formed in the left end face of the pulling moving block 11, a pulling and crushing mechanism 65 for pulling, recovering and damaging the waste cement electric pole is arranged in the clamping cavity 15, a driving cavity 57 is formed in the right side of the machine shell 10, a driving control mechanism 64 for providing power and controlling for the pulling and crushing mechanism 65 is arranged in the driving cavity 57, the pulling and crushing mechanism 65 comprises a clamping block cavity 21 which is formed in the right wall of the clamping cavity 15, communicated with the clamping block cavity and provided with an opening at the right end, and a clamping lead screw 12 which is connected with the front wall and the rear wall in a rotating manner is arranged in the clamping block cavity 21, the front end of the clamping screw 12 is provided with a clamping driven belt groove 23, the clamping driven belt groove 23 is internally connected with a clamping power belt 22 in a friction manner, the clamping screw 12 is further provided with two clamping blocks 13 which are in threaded connection with the clamping screw 12, the left ends of the two clamping blocks extend into the clamping cavity 15, the left ends of the clamping blocks 13 are respectively provided with a clamping groove 14, the right cavity wall at the lower end of the pulling-up cavity 16 is internally provided with a cutting block cavity 18 communicated with the pulling-up cavity, the cutting block cavity 18 is internally provided with a cutting push block 17 of which the left end extends out of the cavity, the right end surface of the cutting push block 17 is fixedly connected with a cutting block spring 19, the other end of the cutting block spring 19 is fixed on the right cavity wall of the cutting block cavity 18, the right end surface of the cutting push block 17 is also fixedly connected with a cutting block pull rope 20, the left end surface of the cutting push block 17 is internally provided with a blade cavity 54 with a left opening, the blade cavity 54 is arranged in the blade cavity 54 and is rotatably connected with upper and lower cavity walls, a blade 55 is fixed at the upper end of the blade shaft 46, a blade driven groove 47 is formed at the lower end of the blade shaft 46, and a blade power belt 49 is connected in the blade driven groove 47 in a friction mode.

Beneficially, a blade motor 53 is arranged in the right cavity wall of the blade cavity 54, the lower end of the blade motor 53 is rotatably connected with a blade driving shaft 67, a blade power belt groove 52 is arranged on the blade driving shaft 67, the blade power belt groove 52 is connected with the blade power belt 49 in a friction manner, a push block cavity 51 with a leftward opening is arranged in the left end face of the cutting push block 17, a push block 48 with a left end extending out of the cavity is arranged in the push block cavity 51, a push block spring 50 is fixedly connected to the right end face of the push block 48, the other end of the push block spring 50 is fixed to the left end face of the push block cavity 51, crushing block cavities 43 communicated with the push block cavity are arranged in the front and rear cavity walls of the middle portion of the pulling-up cavity 16, a crushing block 45 with a front end extending into the pulling-up cavity 16 is arranged in the crushing block cavity 43, a crushing spring 44 is fixedly connected to the rear end face of the crushing block 45, the other end of the crushing spring 44 is fixed to the rear cavity wall of the crushing block cavity 43, and a crushing cavity wall 31 is fixedly connected to the rear end face of the crushing block 45.

Advantageously, the driving control mechanism 64 includes a damaged power cavity 33 disposed in a rear cavity wall of the driving cavity 57 and communicated therewith, a clamping driving cavity 26 communicated therewith is further disposed in a front cavity wall of the driving cavity 57, a driving motor 24 is fixedly connected to a front cavity wall of the driving cavity 57, a main shaft 32 having a rear end extending into the damaged power cavity 33 is dynamically connected to a rear end surface of the driving motor 24, a driving gear 61 is fixed to a front end of the main shaft 32, a crushing wheel 35 is fixed to a rear end of the main shaft 32, a crushing sleeve 34 is rotatably connected to a rear end surface of the crushing wheel 35, the crushing pull rope 31 is fixedly connected to the crushing sleeve 34, a pull-up power shaft 63 having a rear end extending into a rear cavity wall of the driving cavity 57 is disposed on the left side of the driving cavity 57, and a pull-up lifting gear 30 engaged with a right end surface of the pull-up moving block 11 is fixed to a rear end of the pull-up power shaft 63.

Beneficially, the front end of the pulling power shaft 63 is connected with a pulling sliding gear 66 in a spline manner, the pulling sliding gear 66 is engaged with the driving gear 61, a pulling sliding gear groove 58 with a backward opening is formed in the rear end face of the pulling sliding gear 66, a pulling sliding gear block 60 is arranged in the pulling sliding gear groove 58, a pulling sliding gear spring 62 is fixedly connected to the rear end face of the pulling sliding gear block 60, the other end of the pulling sliding gear spring 62 is fixed on the rear cavity wall of the driving cavity 57, a pulling electromagnet 56 is also fixed on the rear cavity wall on the left side of the driving cavity 57, a control groove 39 communicated with the driving cavity 57 is formed in the front and rear cavity walls on the right side of the driving cavity 57, a control shaft 42 is slidably connected in the control groove 39, a control rotating block 37 is rotatably connected to the rear end face of the control shaft 42, a control shaft spring 36 is fixedly connected to the rear end face of the control rotating block 37, and the other end of the control shaft spring 36 is fixed on the rear cavity wall of the control groove 39.

Beneficially, the front end of the control shaft 42 is fixedly connected with a control gear 41 engaged with the drive gear 61, the rear end of the control shaft 42 is fixedly connected with a control stop wheel 40, the rear end of the control shaft 42 is also fixedly connected with a control rope winding wheel 68, the control rope winding wheel 68 is fixedly connected with the cutting block pull rope 20, the front end surface of the drive motor 24 is also dynamically connected with a clamping drive shaft 27, the front end of which extends into the clamping drive cavity 26, the front end of the clamping drive shaft 27 is fixedly connected with a clamping drive gear 25, the left side of the clamping drive cavity 26 is provided with a clamping driven shaft 69, the front end of which extends into the cavity wall of the clamping drive shaft 69, the rear end of the clamping driven shaft 69 is fixedly connected with a clamping driven gear 29 engaged with the clamping drive gear 25, the front end of the clamping driven shaft 69 is provided with a clamping power belt slot 28, and the clamping power belt 22 is frictionally connected in the clamping power belt slot 28.

Sequence of mechanical actions of the whole device:

1: in the initial state, the pulling electromagnet 56 works to pull the sliding gear 66 to be attracted, so that the sliding gear is disengaged from the driving gear 61, the control electromagnet 38 works to pull the control stop wheel 40 to be attracted, so that the control gear 41 is disengaged from the driving gear 61, at the moment, the cutting block pulling rope 20 is tensioned, so that the cutting push block 17 is pulled into the cutting block cavity 18, the two clamping blocks 13 are in a mutually separated state, the pulling moving block 11 is in a state that the upper end of the pulling moving block does not extend out of the upper cavity wall of the clamping cavity 15, the crushing block 45 is pulled into the moving block 11 to be pressed into the cavity, the crushing pulling rope 31 is loosened, and the push block 48 extends out of the cavity under the action of the pushing block spring 50.

2: when the device needs to work, a person can push the device to enable the waste cement electric poles to be arranged in the clamping cavity 15, then the driving motor 24 is enabled to work in a forward rotation mode, so that the driving motor 24 drives the main shaft 32, the driving gear 61, the crushing wheel 35 and the crushing sleeve 34 to rotate, the driving motor 24 also drives the clamping driving shaft 27, the clamping driving gear 25, the clamping driven gear 29 and the clamping driven shaft 69 to rotate, the clamping driven shaft 69 drives the clamping screw 12 to rotate through the clamping power belt 22, so that the clamping screw 12 drives the two clamping blocks 13 to approach each other, the clamping groove 14 clamps the waste cement electric poles, at the moment, the pulling electromagnet 56 stops working, the pulling sliding gear 66 is loosened to be meshed with the rotating driving gear 61, and the driving gear 61 drives the pulling sliding gear 66, the pulling force shaft 63 and the pulling lifting gear 30 to rotate, the lifting gear 30 is pulled to drive the pulling moving block 11 to move upwards to pull up the waste electric pole, at the moment, when the waste electric pole is pulled out of the ground and continuously rises until the pulling moving block 11 releases the crushing block 45, the crushing block is made to pop out of the cavity under the action of the crushing spring 44, the crushing pull rope 31 is tensioned, then the electromagnet 56 is pulled to work, the pulling sliding gear 66 is made to be disengaged from the driving gear 61, at the moment, the crushing pull rope 31 is tensioned and loosened, two crushing blocks 45 move in the crushing block cavity 43 and are repeatedly closed, the pulling part of the electric pole is repeatedly beaten to break and fall off the waste cement layer of the waste electric pole, then the driving motor 24 rotates reversely to make the two clamping blocks 13 mutually far away, the breaking part falls, after the electric pole falls, the driving motor 24 rotates forwards again to clamp the electric pole continuously, so that the upper layer of the breaking part falls and continues to be broken, and the electromagnet 38 is controlled to stop working in the clamping process, the control gear 41 is engaged with the drive gear 61, so that the drive gear 61 drives the control gear 41, the control shaft 42, the control stop wheel 40 and the control rope winding wheel 68 to rotate, so that the control rope winding wheel 68 releases the cutting block pulling rope 20, at the moment, the cutting push block 17 extends out of the cavity under the action of the cutting block spring 19, the blade motor 53 works to drive the blade driving shaft 67 to rotate, so that the blade driving shaft 67 drives the blade shaft 46 and the blade 55 to rotate through the blade power belt 49, so that the blade 55 breaks the electric pole and cuts off the separated steel bar group, the push block 48 pushes the steel bar group out of the clamping cavity 15, the driving motor 24 reversely rotates to wind the cutting block pulling rope 20, the cutting push block 17 is pulled back into the cutting block cavity 18 again, the two clamping blocks 13 drop the electric pole again, and then the electric pole is reversely rotated again and repeatedly, and the whole electric pole is recycled.

3: after the recovery is finished, the pulling electromagnet 56 stops working, the pulling sliding gear 66 is meshed with the driving gear 61, the driving motor 24 rotates reversely, the pulling lifting gear 30 resets the pulling moving block 11 downwards, the crushing block 45 is pressed into the crushing block cavity 43 in the process, the control electromagnet 38 controls the stop wheel 40 to attract again after the cutting block pulling rope 20 is wound tightly, and the mechanism in the machine resets to finish the work.

The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this. 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 broken recovery plant is pulled out to old and useless cement pole, includes the casing, its characterized in that: a pulling cavity with a leftward opening is arranged in the left end face of the shell, a pulling moving block which slides with the wall of the pulling cavity in a friction manner is arranged in the pulling cavity, a clamping cavity with a leftward opening is arranged in the left end face of the pulling moving block, a pulling crushing mechanism which pulls out and recovers waste cement poles for damage treatment is arranged in the clamping cavity, a driving cavity is arranged on the right side of the shell, a driving control mechanism which provides power and control for the pulling crushing mechanism is arranged in the driving cavity, the pulling crushing mechanism comprises a clamping block cavity which is arranged in the right wall of the clamping cavity, is communicated with the clamping cavity and is provided with an opening at the right end, a clamping lead screw which is rotatably connected with the front and rear front walls is arranged in the clamping block cavity, a clamping driven belt groove is arranged at the front end of the clamping lead screw, and a clamping power belt is in the clamping driven belt groove in a friction manner, the cutting device is characterized in that the clamping screw rod is further provided with two clamping blocks which are in threaded connection with the clamping screw rod, the left ends of the two clamping blocks extend into the clamping cavities, the left ends of the clamping blocks are respectively provided with a clamping groove, a cutting block cavity communicated with the pulling cavity is arranged in the right cavity wall at the lower end of the pulling cavity, a cutting push block with the left end extending out of the cavity is arranged in the cutting block cavity, a cutting block spring is fixedly connected to the right end face of the cutting push block, the other end of the cutting block spring is fixed to the right cavity wall of the cutting block cavity, a cutting block pull rope is also fixedly connected to the right end face of the cutting push block, a blade cavity with a leftward opening is arranged in the left end face of the cutting push block, a blade shaft rotationally connected with the upper cavity wall and the lower cavity wall is arranged in the blade cavity, a blade is fixed to the upper end of the blade shaft, a blade driven groove is arranged at the lower end of the blade shaft, and a blade power belt is in the blade driven groove in a friction connection mode; a blade motor is arranged in the right cavity wall of the blade cavity, the lower end of the blade motor is rotatably connected with a blade driving shaft, a blade power belt groove is arranged on the blade driving shaft, the blade power belt groove is internally connected with a blade power belt in a friction manner, a push block cavity with a leftward opening is arranged in the left end face of the cutting push block, a push block with a left end extending out of the cavity is arranged in the push block cavity, a push block spring is fixedly connected onto the right end face of the push block, the other end of the push block spring is fixed onto the left end face of the push block cavity, crushing block cavities communicated with the push block spring are arranged in the front cavity wall and the rear cavity wall of the pulling cavity in the middle of the pulling cavity, a crushing block with a front end extending into the pulling cavity is arranged in the crushing block cavity, a crushing spring is fixedly connected onto the rear end face of the crushing block cavity, the other end of the crushing spring is fixed onto the rear cavity wall of the crushing cavity, and a crushing pull rope is fixedly connected onto the rear end face of the crushing block; the driving control mechanism comprises a damaged power cavity which is arranged in the rear cavity wall of the driving cavity and communicated with the driving cavity, a clamping driving cavity which is communicated with the driving cavity is also arranged in the front cavity wall of the driving cavity, a driving motor is fixedly connected to the front cavity wall of the driving cavity, a main shaft of which the rear end extends into the damaged power cavity is in power connection with the rear end surface of the driving motor, a driving gear is fixed at the front end of the main shaft, a crushing wheel is fixed at the rear end of the main shaft, a crushing sleeve is rotatably connected to the rear end surface of the crushing wheel, the crushing pull rope is fixedly connected to the crushing sleeve, a pulling power shaft of which the rear end extends into the rear cavity wall of the driving cavity is arranged at the left side of the driving cavity, and a pulling lifting gear which is engaged with the pulling right end surface of the moving block is fixed at the rear end of the pulling power shaft; the front end of the pulling power shaft is in splined connection with a pulling sliding gear meshed with the driving gear, a pulling sliding gear groove with a backward opening is formed in the rear end face of the pulling sliding gear, a pulling sliding gear block is arranged in the pulling sliding gear groove, a pulling sliding gear spring is fixedly connected to the rear end face of the pulling sliding gear block, the other end of the pulling sliding gear spring is fixed on the rear cavity wall of the driving cavity, a pulling electromagnet is further fixed on the rear cavity wall on the left side of the driving cavity, a control groove communicated with the driving cavity is formed in the front cavity wall and the rear cavity wall on the right side of the driving cavity, a control shaft is connected in the control groove in a sliding mode, a control rotating block is rotatably connected to the rear end face of the control shaft, a control shaft spring is fixedly connected to the rear end face of the control rotating block, and the other end of the control shaft spring is fixed on the rear cavity wall of the control groove; control shaft front end fixedly connected with drive gear meshed control gear, the control shaft rear end is fixed with control locking wheel, the control shaft rear end is fixedly connected with control rope winding wheel still, fixedly connected with on the control rope winding wheel cutting block stay cord, it has the front end to stretch into to go back power connection on the driving motor front end the tight drive shaft of clamp in the tight drive chamber, it is fixed with and presss from both sides tight drive gear to press from both sides tight drive shaft front end, it is equipped with the tight driven shaft of clamp that the front end stretches into its chamber wall to press from both sides tight drive chamber left, it is fixed with to press from both sides tight driven shaft rear end press from both sides tight driven gear of tight drive gear meshing, it is equipped with and presss from both sides tight race to press from both sides tight driven shaft front end, it has to press from both sides tight race internal friction connection tightly driving belt.