A kind of case for circuit breaker retracting device
Technical field
The present invention relates to a kind of retracting device, more particularly to a kind of case for circuit breaker retracting device.
Background technology
The effect of breaker is periodic break-make ignition coil primary return, is typically formed by getting an electric shock and powering off cam.
Breaker contact point pair has tungsten alloy to be made, and a contact is fixed contact, and another contact is that armature contact fixed contact bonding is logical
Cross trip bolt and be fixed on what is realized on movable floor and the fixation bottom plate of bottom, can be by between rotation eccentric screw adjustment contact
Gap.
The armature contact of breaker is fixed on one end of contact point arm, and the other end of contact point arm is enclosed on pin, and contact point arm leans on
Spring leaf is pressed on power-off cam, and contact point arm is connected through spring leaf and wire with the insulating terminal outside housing.Power off convex
Cam lobe number is identical with cylinder number, and power-off cam is formed integrally in plate, and on distributor shaft, centrifugation shifts to an earlier date machine
The centrifugal weight of structure is driven by distributor shaft.
The shell of breaker is heated for a long time, and service life is limited to be needed to change, and the old shell after changing at present is typically all
It is classified as discarded object, serious waste of resources, the shortcomings that not meeting environmental protection and saving asset topics demand, therefore it is a kind of efficiently to need research and development badly
Broken shell and the case for circuit breaker retracting device for recycling resource.
The content of the invention
(1) technical problems to be solved
In order to overcome the shell of breaker to be heated for a long time, service life is limited to be needed to change the present invention, after changing at present
Old shell is typically all to be classified as discarded object, serious waste of resources, the shortcomings that not meeting environmental protection and saving asset topics demand, the present invention
Technical problems to be solved are to provide a kind of case for circuit breaker retracting device.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides such a case for circuit breaker retracting device, include and connect
Wheel trolley, pole, bottom plate, slewing, casing, weight and lowering or hoisting gear, the middle part at the top of bottom plate are provided with slewing, rotate
Symmetrical expression is provided with pole on the bottom plate of the left and right sides of equipment, and the top rotary type of pole is connected with contact wheel, slewing
Upper end be provided with casing, contact wheel symmetrical expression is arranged on the left and right ends of bottom half, be provided with above casing lifting dress
Put, weight is connected with lowering or hoisting gear.
Preferably, slewing includes handle, first rotating shaft, first bearing seat, disk, fix bar and sucker, bottom plate
Middle part place to the right be provided with perforation, the middle part place to the right at the top of bottom plate is provided with first bearing seat, is provided with first bearing seat
First rotating shaft, first rotating shaft are connected with handle through perforation, the lower end of first rotating shaft, and the upper end of first rotating shaft is connected with disk,
Eccentric part at the top of disk is connected with fix bar, and the top of fix bar is connected with sucker, and casing is arranged on the top of sucker.
Preferably, lowering or hoisting gear includes ceiling hold, second bearing seat, roller, drawstring, the second rotating shaft and motor, casing
Top is provided with ceiling hold, and the left and right sides symmetrical expression of ceiling hold inner top is provided with second bearing seat, pacified in second bearing seat
Equipped with the second rotating shaft, motor is provided with ceiling hold on left side wall, motor is connected with the left end of the second rotating shaft, in the second rotating shaft
Roller is provided with, drawstring is wound with roller, the end of drawstring at the top of weight with being connected.
Preferably, also include first bevel gear, second bevel gear, the 3rd rotating shaft, the first belt pulley, 3rd bearing seat,
Flat belt and the second belt pulley, the second belt pulley are provided with the second rotating shaft, the second belt pulley is arranged on the of motor and left side
In the second rotating shaft between two bearing bracket, 3rd bearing seat is provided with bottom plate on left side wall, is provided with 3rd bearing seat
Three rotating shafts, the first belt pulley and second bevel gear are provided with the 3rd rotating shaft, the first belt pulley is arranged on a left side for second bevel gear
Side, first bevel gear is provided with the first rotating shaft between disk and first bearing seat, first bevel gear is nibbled with second bevel gear
Close, flat belt is wound between the first belt pulley and the second belt pulley.
Preferably, protective cover, buckle, connecting rod and rubber ring are also included, symmetrical expression is opened on the left and right sides wall of casing
There is neck, the top symmetrical expression of casing left and right sides wall is provided with connecting rod, and the inner of connecting rod is connected with buckle, buckle and card
Groove coordinates, and protective cover is provided with the top of connecting rod, looping pit is provided with the top of protective cover, rubber is provided with looping pit inwall
Circle, drawstring pass through looping pit.
Preferably, rubber blanket and guide plate are also included, left side wall lower end is connected with guide plate in ceiling hold, on guide plate
Pilot hole is provided with, rubber blanket is provided with pilot hole inwall, drawstring passes through pilot hole.
Preferably, also include counterweight and rubber stopper, be provided with annular groove on the disk of fix bar right opposite, bottom in annular groove
Portion is provided with counterweight, and rubber stopper is combined with annular groove.
Preferably, the material of casing is Q235 steel.
Operation principle:Shell to be broken is placed into casing, people run slewing, and slewing drives casing
Positive and negative alternate rotates, and contact wheel is in contact with bottom half, can start supporting role, prevent steady fortune during body pivot
OK, at the same start lowering or hoisting gear drive weight move up and down, weight breaks shell, can be back and forth easy to shell breakage with this
The recycling of shell.
Because slewing includes handle, first rotating shaft, first bearing seat, disk, fix bar and sucker, in bottom plate
Place to the right of portion is provided with perforation, and the middle part place to the right at the top of bottom plate is provided with first bearing seat, and first is provided with first bearing seat
Rotating shaft, first rotating shaft are connected with handle through perforation, the lower end of first rotating shaft, and the upper end of first rotating shaft is connected with disk, disk
The eccentric part at top is connected with fix bar, and the top of fix bar is connected with sucker, and casing is arranged on the top of sucker, so people
Shake handle drives first rotating shaft to rotate, and first rotating shaft is disc-rotated, so as to body pivot, is easy to the shell in casing
It is uniformly broken, and crushing efficiency is high.
Because lowering or hoisting gear includes ceiling hold, second bearing seat, roller, drawstring, the second rotating shaft and motor, casing top
Ceiling hold is provided with, the left and right sides symmetrical expression of ceiling hold inner top is provided with second bearing seat, is provided with second bearing seat
Second rotating shaft, motor is provided with left side wall in ceiling hold, motor is connected with the left end of the second rotating shaft, is set in the second rotating shaft
There is roller, drawstring is wound with roller, the end of drawstring at the top of weight with being connected, so when needing broken shell, people
Start the rotation of motor positive and negative alternate drives roller positive and negative alternate to rotate by the second rotating shaft, thus, it is possible to folding and unfolding drawstring, so as to weight
Thing moves up and down, and weight smashes shell, so as to have the function that broken shell, is easy to the recycling to shell.
Because also include first bevel gear, second bevel gear, the 3rd rotating shaft, the first belt pulley, 3rd bearing seat, flat skin
Band and the second belt pulley, the second belt pulley are provided with the second rotating shaft, the second belt pulley is arranged on motor and second axle in left side
In the second rotating shaft between bearing, 3rd bearing seat is provided with bottom plate on left side wall, the 3rd turn is provided with 3rd bearing seat
Axle, the first belt pulley and second bevel gear are provided with the 3rd rotating shaft, the first belt pulley is arranged on the left side of second bevel gear, circle
First bevel gear is provided with first rotating shaft between disk and first bearing seat, first bevel gear engages with second bevel gear, the
Flat belt is wound between one belt pulley and the second belt pulley, so when motor positive and negative alternate rotates, the rotating shaft of motor driven second
Rotate, so as to which the second belt pulley positive and negative alternate rotates, the second belt pulley drives the first pulley rotation, the first skin by flat belt
Belt wheel drives the 3rd axis of rotation, drives first bevel gear positive and negative alternate to rotate so as to which second bevel gear rotates, thus first turn
Axle positive and negative alternate, which rotates, drives casing positive and negative rotation, labour can be so saved in the case where there is electricity, in the situation without electricity
Under can also ensure the operation of the device, and electric energy can be saved.
Because also including protective cover, buckle, connecting rod and rubber ring, symmetrical expression is provided with card on the left and right sides wall of casing
Groove, the top symmetrical expression of casing left and right sides wall are provided with connecting rod, and the inner of connecting rod is connected with buckle, and buckle is matched somebody with somebody with neck
Close, protective cover is provided with the top of connecting rod, looping pit is provided with the top of protective cover, rubber ring is provided with looping pit inwall, is drawn
Rope is through looping pit, so when weight is pounded to shell, protective cover can prevent shell in small, broken bits from splashing and accidentally injuring people, while rubber
Circle can slow down the abrasion of drawstring, extend the service life of drawstring, and point of protective cover and casing is easy in the cooperation of neck and buckle
From being easy into casing add shell to be broken again.
Because also including rubber blanket and guide plate, left side wall lower end is connected with guide plate in ceiling hold, is opened on guide plate
There is pilot hole, rubber blanket is provided with pilot hole inwall, drawstring passes through pilot hole, so when folding and unfolding drawstring, guide plate and leads
Guide effect can be played to drawstring, rocked thus, it is possible to prevent drawstring lifting heavy, while rubber blanket can protect to hole
Drawstring friction is serious and damaged.
Because also including counterweight and rubber stopper, annular groove, annular groove inner bottom part are provided with the disk of fix bar right opposite
Be provided with counterweight, rubber stopper be combined with annular groove, thus according to the weight of casing and its inside and outside shell can be suitably in annular
Add counterweight in groove, can so ensure the balance on disk, while annular groove sealing can be placed disk rotational formula by rubber stopper
Counterweight is thrown away, ensures the security of the device.
The control mode of the present invention is automatically controlled by controller, the skill that the control circuit of controller passes through this area
Art personnel simple programming can be achieved, and belong to the common knowledge of this area, and the present invention is mainly used to protect mechanical device, institute
Control mode is not explained with the present invention to connect with circuit.
(3) beneficial effect
Invention achieves efficiency crushing shell, is easy to the collection to shell and recycling, prevents shell in small, broken bits from splashing
And accidentally injure people, guide effect is played to drawstring and prevents drawstring lifting heavy and rocks, at the same rubber blanket can protective pull rope rub
Wiping is serious and damaged, can ensure the balance of disk operation, while annular groove sealing can be placed disk rotational formula by rubber stopper
Counterweight is thrown away, ensures the effect of the certain security of the device.
Brief description of the drawings
Fig. 1 is the first main structure diagram of the present invention.
Fig. 2 is the main structure diagram of slewing of the present invention.
Fig. 3 is the main structure diagram of lowering or hoisting gear of the present invention.
Fig. 4 is second of main structure diagram of the present invention.
Fig. 5 is the first part main structure diagram of the present invention.
Fig. 6 is second of part main structure diagram of the present invention.
Fig. 7 is the third part main structure diagram of the present invention.
Mark in accompanying drawing for:1- contact wheels, 2- poles, 3- bottom plates, 4- slewings, 41- handles, 42- first rotating shafts,
43- perforates, 44- first bearing seats, 45- disks, 46- fix bars, 47- suckers, 5- casings, 6- weights, 7- lowering or hoisting gears, 71-
Ceiling hold, 72- second bearing seats, 73- rollers, 74- drawstrings, the rotating shafts of 75- second, 76- motors, 8- first bevel gears, 9- second
Bevel gear, the rotating shafts of 10- the 3rd, the belt pulleys of 11- first, 12- 3rd bearing seats, 13- flat belts, the belt pulleys of 14- second, 15- prevent
Shield, 16- buckles, 17- connecting rods, 18- necks, 19- rubber rings, 20- looping pits, 21- pilot holes, 22- rubber blankets, 23- are led
To plate, 24- annular grooves, 25- counterweights, 26- rubber stoppers.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
A kind of case for circuit breaker retracting device, as shown in figs. 1-7, include contact wheel 1, pole 2, bottom plate 3, slewing
4th, casing 5, weight 6 and lowering or hoisting gear 7, the middle part at the top of bottom plate 3 are provided with slewing 4, the left and right sides of slewing 4
Symmetrical expression is provided with pole 2 on bottom plate 3, and the top rotary type of pole 2 is connected with contact wheel 1, and the upper end of slewing 4 is provided with
Casing 5, the symmetrical expression of contact wheel 1 are arranged on the left and right ends of the bottom of casing 5, and the top of casing 5 is provided with lowering or hoisting gear 7, lifting
Weight 6 is connected with device 7.
Embodiment 2
A kind of case for circuit breaker retracting device, as shown in figs. 1-7, include contact wheel 1, pole 2, bottom plate 3, slewing
4th, casing 5, weight 6 and lowering or hoisting gear 7, the middle part at the top of bottom plate 3 are provided with slewing 4, the left and right sides of slewing 4
Symmetrical expression is provided with pole 2 on bottom plate 3, and the top rotary type of pole 2 is connected with contact wheel 1, and the upper end of slewing 4 is provided with
Casing 5, the symmetrical expression of contact wheel 1 are arranged on the left and right ends of the bottom of casing 5, and the top of casing 5 is provided with lowering or hoisting gear 7, lifting
Weight 6 is connected with device 7.
Slewing 4 includes handle 41, first rotating shaft 42, first bearing seat 44, disk 45, fix bar 46 and sucker
47, the middle part place to the right of bottom plate 3 is provided with perforation 43, and the middle part place to the right at the top of bottom plate 3 is provided with first bearing seat 44, first axle
First rotating shaft 42 is installed in bearing 44, first rotating shaft 42 passes through perforation 43, and the lower end of first rotating shaft 42 is connected with handle 41, the
The upper end of one rotating shaft 42 is connected with disk 45, and the eccentric part at the top of disk 45 is connected with fix bar 46, and the top of fix bar 46 connects
Sucker 47 is connected to, casing 5 is arranged on the top of sucker 47.
Embodiment 3
A kind of case for circuit breaker retracting device, as shown in figs. 1-7, include contact wheel 1, pole 2, bottom plate 3, slewing
4th, casing 5, weight 6 and lowering or hoisting gear 7, the middle part at the top of bottom plate 3 are provided with slewing 4, the left and right sides of slewing 4
Symmetrical expression is provided with pole 2 on bottom plate 3, and the top rotary type of pole 2 is connected with contact wheel 1, and the upper end of slewing 4 is provided with
Casing 5, the symmetrical expression of contact wheel 1 are arranged on the left and right ends of the bottom of casing 5, and the top of casing 5 is provided with lowering or hoisting gear 7, lifting
Weight 6 is connected with device 7.
Slewing 4 includes handle 41, first rotating shaft 42, first bearing seat 44, disk 45, fix bar 46 and sucker
47, the middle part place to the right of bottom plate 3 is provided with perforation 43, and the middle part place to the right at the top of bottom plate 3 is provided with first bearing seat 44, first axle
First rotating shaft 42 is installed in bearing 44, first rotating shaft 42 passes through perforation 43, and the lower end of first rotating shaft 42 is connected with handle 41, the
The upper end of one rotating shaft 42 is connected with disk 45, and the eccentric part at the top of disk 45 is connected with fix bar 46, and the top of fix bar 46 connects
Sucker 47 is connected to, casing 5 is arranged on the top of sucker 47.
Lowering or hoisting gear 7 includes ceiling hold 71, second bearing seat 72, roller 73, drawstring 74, the second rotating shaft 75 and motor
76, the top of casing 5 is provided with ceiling hold 71, and the left and right sides symmetrical expression of the inner top of ceiling hold 71 is provided with second bearing seat 72,
Second rotating shaft 75 is installed in second bearing seat 72, is provided with motor 76 in ceiling hold 71 on left side wall, motor 76 and second turn
The left end of axle 75 is connected, and roller 73 is provided with the second rotating shaft 75, is wound with drawstring 74 on roller 73, the end of drawstring 74 with again
The top of thing 6 is connected.
Embodiment 4
A kind of case for circuit breaker retracting device, as shown in figs. 1-7, include contact wheel 1, pole 2, bottom plate 3, slewing
4th, casing 5, weight 6 and lowering or hoisting gear 7, the middle part at the top of bottom plate 3 are provided with slewing 4, the left and right sides of slewing 4
Symmetrical expression is provided with pole 2 on bottom plate 3, and the top rotary type of pole 2 is connected with contact wheel 1, and the upper end of slewing 4 is provided with
Casing 5, the symmetrical expression of contact wheel 1 are arranged on the left and right ends of the bottom of casing 5, and the top of casing 5 is provided with lowering or hoisting gear 7, lifting
Weight 6 is connected with device 7.
Slewing 4 includes handle 41, first rotating shaft 42, first bearing seat 44, disk 45, fix bar 46 and sucker
47, the middle part place to the right of bottom plate 3 is provided with perforation 43, and the middle part place to the right at the top of bottom plate 3 is provided with first bearing seat 44, first axle
First rotating shaft 42 is installed in bearing 44, first rotating shaft 42 passes through perforation 43, and the lower end of first rotating shaft 42 is connected with handle 41, the
The upper end of one rotating shaft 42 is connected with disk 45, and the eccentric part at the top of disk 45 is connected with fix bar 46, and the top of fix bar 46 connects
Sucker 47 is connected to, casing 5 is arranged on the top of sucker 47.
Lowering or hoisting gear 7 includes ceiling hold 71, second bearing seat 72, roller 73, drawstring 74, the second rotating shaft 75 and motor
76, the top of casing 5 is provided with ceiling hold 71, and the left and right sides symmetrical expression of the inner top of ceiling hold 71 is provided with second bearing seat 72,
Second rotating shaft 75 is installed in second bearing seat 72, is provided with motor 76 in ceiling hold 71 on left side wall, motor 76 and second turn
The left end of axle 75 is connected, and roller 73 is provided with the second rotating shaft 75, is wound with drawstring 74 on roller 73, the end of drawstring 74 with again
The top of thing 6 is connected.
Also include first bevel gear 8, second bevel gear 9, the 3rd rotating shaft 10, the first belt pulley 11,3rd bearing seat 12,
The belt pulley 14 of flat belt 13 and second, the second belt pulley 14 is provided with the second rotating shaft 75, the second belt pulley 14 is arranged on motor
In the second rotating shaft 75 between 76 and the second bearing seat 72 in left side, 3rd bearing seat 12 is provided with bottom plate 3 on left side wall, the
3rd rotating shaft 10 is installed on three bearing blocks 12, is provided with the first belt pulley 11 and second bevel gear 9 in the 3rd rotating shaft 10, first
Belt pulley 11 is arranged on the left side of second bevel gear 9, is provided with the first rotating shaft 42 between disk 45 and first bearing seat 44
First bevel gear 8, first bevel gear 8 engage with second bevel gear 9, are wound between the first belt pulley 11 and the second belt pulley 14 flat
Belt 13.
Also include protective cover 15, buckle 16, connecting rod 17 and rubber ring 19, symmetrical expression on the left and right sides wall of casing 5
Neck 18 is provided with, the top symmetrical expression of the left and right sides wall of casing 5 is provided with connecting rod 17, and the inner of connecting rod 17 is connected with buckle
16, buckle 16 coordinates with neck 18, and the top of connecting rod 17 is provided with protective cover 15, and the top of protective cover 15 is provided with looping pit 20,
Rubber ring 19 is provided with the inwall of looping pit 20, drawstring 74 passes through looping pit 20.
Also include rubber blanket 22 and guide plate 23, left side wall lower end is connected with guide plate 23, guide plate in ceiling hold 71
Pilot hole 21 is provided with 23, rubber blanket 22 is provided with the inwall of pilot hole 21, drawstring 74 passes through pilot hole 21.
Also include counterweight 25 and rubber stopper 26, annular groove 24, annular groove are provided with the disk 45 of the right opposite of fix bar 46
24 inner bottom parts are provided with counterweight 25, and rubber stopper 26 is combined with annular groove 24.
The material of casing 5 is Q235 steel.
Operation principle:Shell to be broken is placed into casing 5, people run slewing 4, and slewing 4 drives
The positive and negative alternate of casing 5 rotates, and contact wheel 1 touches with the bottom connection of casing 5, can start supporting role, prevents when casing 5 from rotating
Even running, while start lowering or hoisting gear 7 and drive weight 6 to move up and down, weight 6 breaks shell, back and forth can be by shell with this
It is broken, it is easy to the recycling of shell.
Because slewing 4 includes handle 41, first rotating shaft 42, first bearing seat 44, disk 45, fix bar 46 and inhaled
Disk 47, the middle part place to the right of bottom plate 3 are provided with perforation 43, and the middle part place to the right at the top of bottom plate 3 is provided with first bearing seat 44, and first
First rotating shaft 42 is installed on bearing block 44, first rotating shaft 42 passes through perforation 43, and the lower end of first rotating shaft 42 is connected with handle 41,
The upper end of first rotating shaft 42 is connected with disk 45, and the eccentric part at the top of disk 45 is connected with fix bar 46, the top of fix bar 46
Sucker 47 is connected with, casing 5 is arranged on the top of sucker 47, so people's shake handle 41 drives first rotating shaft 42 to rotate, the
One rotating shaft 42 drives disk 45 to rotate, and so as to which casing 5 rotates, is easy to uniformly crush the shell in casing 5, and crushing efficiency
It is high.
Because lowering or hoisting gear 7 includes ceiling hold 71, second bearing seat 72, roller 73, drawstring 74, the second rotating shaft 75 and electricity
Machine 76, the top of casing 5 are provided with ceiling hold 71, and the left and right sides symmetrical expression of the inner top of ceiling hold 71 is provided with second bearing seat
72, the second rotating shaft 75 is installed in second bearing seat 72, motor 76, motor 76 and second are provided with left side wall in ceiling hold 71
The left end of rotating shaft 75 is connected, and roller 73 is provided with the second rotating shaft 75, is wound with drawstring 74 on roller 73, the end of drawstring 74 with
The top of weight 6 is connected, so when needing broken shell, people start the rotation of the positive and negative alternate of motor 76 and pass through the second rotating shaft
75 drive the positive and negative alternate of roller 73 to rotate, and thus, it is possible to folding and unfolding drawstring 74, so as to which weight 6 moves up and down, weight 6 smashes shell,
So as to have the function that broken shell, it is easy to the recycling to shell.
Because also include first bevel gear 8, second bevel gear 9, the 3rd rotating shaft 10, the first belt pulley 11,3rd bearing
Seat 12, the belt pulley 14 of flat belt 13 and second, the second belt pulley 14 are provided with the second rotating shaft 75, the second belt pulley 14 is arranged on
In the second rotating shaft 75 between motor 76 and the second bearing seat 72 in left side, 3rd bearing seat is provided with bottom plate 3 on left side wall
12, the 3rd rotating shaft 10 is installed on 3rd bearing seat 12, the first belt pulley 11 and second bevel gear are provided with the 3rd rotating shaft 10
9, the first belt pulley 11 is arranged on the left side of second bevel gear 9, in the first rotating shaft 42 between disk 45 and first bearing seat 44
First bevel gear 8 is provided with, first bevel gear 8 engages with second bevel gear 9, between the first belt pulley 11 and the second belt pulley 14
Flat belt 13 is wound with, so when the positive and negative alternate of motor 76 rotates, motor 76 drives the second rotating shaft 75 to rotate, so as to the second belt
The rotation of 14 positive and negative alternates is taken turns, the second belt pulley 14 drives the first belt pulley 11 to rotate by flat belt 13, the band of the first belt pulley 11
Dynamic 3rd rotating shaft 10 rotates, and drives the positive and negative alternate of first bevel gear 8 to rotate so as to which second bevel gear 9 rotates, thus first rotating shaft
42 positive and negative alternates, which rotate, drives the positive and negative rotation of casing 5, labour can be so saved in the case where there is electricity, in the situation without electricity
Under can also ensure the operation of the device, and electric energy can be saved.
It is right on the left and right sides wall of casing 5 because also including protective cover 15, buckle 16, connecting rod 17 and rubber ring 19
Title formula is provided with neck 18, and the top symmetrical expression of the left and right sides wall of casing 5 is provided with connecting rod 17, and the inner of connecting rod 17 is connected with
Buckle 16, buckle 16 coordinate with neck 18, and the top of connecting rod 17 is provided with protective cover 15, and the top of protective cover 15 is provided with looping pit
20, rubber ring 19 is provided with the inwall of looping pit 20, drawstring 74 passes through looping pit 20, so when weight 6 is pounded to shell, protection
Cover 15 can prevent shell in small, broken bits from splashing and accidentally injuring people, while rubber ring 19 can slow down the abrasion of drawstring 74, extend drawstring 74
Service life, the cooperation of neck 18 and buckle 16 is easy to the separation of protective cover 15 and casing 5, is easy to again add into casing 5
Add shell to be broken.
Because also including rubber blanket 22 and guide plate 23, left side wall lower end is connected with guide plate 23 in ceiling hold 71, leads
Pilot hole 21 is provided with to plate 23, rubber blanket 22 is provided with the inwall of pilot hole 21, drawstring 74 passes through pilot hole 21, so when receipts
When putting drawstring 74, guide plate 23 and pilot hole 21 can play guide effect to drawstring 74, thus, it is possible to prevent drawstring 74 from being lifted
Weight 6 and rock, while rubber blanket 22 can protective pull rope 74 rub it is serious and damaged.
Because also including counterweight 25 and rubber stopper 26, annular groove 24, ring are provided with the disk 45 of the right opposite of fix bar 46
The inner bottom part of shape groove 24 is provided with counterweight 25, and rubber stopper 26 is combined with annular groove 24, so according to casing 5 and its weight of inside and outside shell
Amount can suitably add counterweight 25 in the annular groove 24, can so ensure the balance on disk 45, while rubber stopper 26 is by ring
The sealing of shape groove 24 can place the rotary type of disk 45 and throw away counterweight 25, ensure the security of the device.
The control mode of the present invention is automatically controlled by controller, the skill that the control circuit of controller passes through this area
Art personnel simple programming can be achieved, and belong to the common knowledge of this area, and the present invention is mainly used to protect mechanical device, institute
Control mode is not explained with the present invention to connect with circuit.
Embodiment described above only expresses the preferred embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations can also be made, improves and substitutes, these belong to this hair
Bright protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.