CN206126543U - Novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car - Google Patents
Novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car Download PDFInfo
- Publication number
- CN206126543U CN206126543U CN201620664125.9U CN201620664125U CN206126543U CN 206126543 U CN206126543 U CN 206126543U CN 201620664125 U CN201620664125 U CN 201620664125U CN 206126543 U CN206126543 U CN 206126543U
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- rope sheave
- friction pulley
- wheel
- location structure
- big
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Abstract
The utility model discloses a novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car, its base rotates and is equipped with big friction pulley, it is equipped with small friction wheel to rotate on the rope sheave, small friction wheel rotates the assembly on the rope sheave through the fixed part that extends on its outer peripheral face, it is equipped with location structure still to rotate in small friction wheel's top on the wheel face of rope sheave, be provided with the location torsional spring that makes location structure turn to the fixed part between location structure and the rope sheave, location structure makes small friction wheel keep away from big friction pulley with the back end elasticity roof pressure cooperation of fixed part, the location structure epirelief is equipped with the trigger end, it brakies its connecting rod that compresses tightly the rope sheave of clamp plate messenger to articulate on the friction pulley greatly to have to stimulate when the friction pulley is with the small friction wheel meshing greatly, the connecting rod clearance wears to establish on the braking clamp plate, connecting rod and the equal spacing cooperation in both sides of brakeing the clamp plate, be provided with the dish dish on the big friction pulley. The utility model discloses a that the braking is adopted is big friction pulley and small friction wheel, in case exceeding the speed limit appears in the rope sheave, two friction pulley interlocks in the twinkling of an eye do not have delay.
Description
Technical field
The utility model is related to a kind of New Speed Limiter in elevator device, more particularly to a kind of unidirectional limiter of speed,
Belong to a kind of elevator component.
Background technology
Limiter of speed is the critical component of elevator safety, of the prior art to have a kind of such limiter of speed, including base, bottom
Rope sheave and ratchet are equipped with by main axis on seat, the two ends of main shaft are arranged on base by bearing, the assembling of rope sheave rotation stop
On main shaft, main shaft drives rope sheave to rotate, and steel wire rope is arranged with rope sheave.The diameter of ratchet is being restricted less than the diameter of rope sheave
Ratchet is rotatably equipped with the wheel face of wheel, torsion spring is provided between ratchet and rope sheave, torsion spring is to Pawl Torsion so that pawl rotation
All the time there is the trend matched somebody with somebody with the draw-in groove card of ratchet, when ratchet is in free state, ratchet can be in clamping with ratchet
State, also rotate on rope sheave and be provided with location structure, location structure has a top pressure end, and the top pressure end top pressure is in ratchet
On so that normal condition of the ratchet in ratchet is decontroled, there is torsion spring between location structure and rope sheave, torsion spring is carried for location structure
Power for compressing ratchet, makes ratchet overcome torsion spring power thereon, keeps state detached with ratchet, is also rotatably equipped with rope sheave
Two gravity drop hammers, ratchet and location structure are in the side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.Two gravity
Set-up mode of the hammer on rope sheave is centrosymmetric mode, and the center of rotation of gravity drop hammer is not located at two ends, one end of gravity drop hammer
Quality more greatly tup end, other end quality is less for hammer handle end, and between the hammer handle end of a gravity drop hammer and rope sheave pressure is provided with
Spring device, compression-spring device causes the tup end of gravity drop hammer to be in the centre of rope sheave, the tup portion of the gravity drop hammer with it is another
Pull bar is connected between the hammer handle portion of individual gravity drop hammer, the two ends of pull bar are hinged respectively with two gravity drop hammers, in rope sheave normal rotation
When, in the presence of compression-spring device, the tup portion of two gravity drop hammers is at the centre of rope sheave.In rope sheave overspeed operation
When, under the influence of centrifugal force, two gravity drop hammers can overcome the spring force of compression-spring device to open, and two tups all can turn to rope sheave
Edge, two hammer handles turn to rope sheave center.There is the triggering end through rope sheave on location structure, in the hammer of gravity drop hammer
When head turns to the outer rim of rope sheave, triggering end of the gravity drop hammer to projection in top pressure triggering end so that location structure overcomes its torsion spring
Power is rotated, and location structure compresses ratchet so that ratchet continues to be rotated to the direction away from ratchet, with the increase of rotation distance,
Location structure can decontrol ratchet, and ratchet is stuck in the presence of its torsion spring with ratchet, after location structure decontrols ratchet, spine
Pawl will cross location structure and keep off location structure in turn so that location structure can not reset, and at this moment, location structure is in torsion spring
Top pressure ratchet in the presence of power so that ratchet is reliably in the state with ratchet buckle, in this state, if moving spine
Pawl makes it persistently rotate to the direction rotation away from ratchet, and ratchet will be separated with location structure, and location structure is in its torsion spring
The lower return of effect.Brake press plate is rotatably equipped with the side of rope sheave on base, is set between the side of brake press plate and wheel face
Be equipped with connecting rod, one end of connecting rod and being hinged at for brake press plate, the other end and the wheel face of ratchet of connecting rod are hinged, ratchet with
After ratchet is fastened togather, ratchet follows rope sheave to rotate, and ratchet drives brake press plate to press to rope sheave when rotating by connecting rod, from
And realize the braking of rope sheave.The limiter of speed being suitable in prior art is typically all such limiter of speed, this limiter of speed
Ratchet needs to go to the position stuck with ratchet after falling could realize braking, need the regular hour, it is impossible to brake at any time, have
There is certain limitation.
Utility model content
The purpose of this utility model is to provide a kind of new type auto anti-slip limiter of speed that unidirectionally automatically resets, to provide one kind
New unidirectional limiter of speed.
In order to realize object above, the utility model is adopted the following technical scheme that：It is a kind of it is new type auto it is anti-slip it is unidirectional from
Dynamic reset limiter of speed, including base, rope sheave is provided with base by main axis, and one end of main shaft is provided with encoder, rope
Gravity drop hammer is provided with wheel side wheel face, the side of base rotates the brake press plate for being provided with rope sheave, is additionally provided with base
After powered up top pressure gravity drop hammer causes the electromagnet that gravity drop hammer opens, and the big friction coaxial with rope sheave is also rotatably equipped with base
Wheel, is rotatably equipped with little friction pulley on another side surface of rope sheave, little friction pulley is rotated by the fixed part extended on its outer peripheral face
It is assemblied on rope sheave, being provided between little friction pulley and rope sheave makes little friction pulley turn to big friction wheel and be pressed on big friction wheel
Torsion spring, location structure is also rotatably equipped with the wheel face of rope sheave in the top of little friction pulley, is set between location structure and rope sheave
The positioning torsion spring for making location structure turn to fixed part is equipped with, location structure makes little rubbing with the follower head elastic top press-fit of fixed part
Wheel is wiped away from big friction wheel, is convexly equipped with to be pushed with gravity drop hammer when the tup of gravity drop hammer turns to the outer rim of rope sheave on location structure and is matched somebody with somebody
The triggering end for causing location structure to overcome positioning torsion spring power to disengage with fixed part is closed, triggering end is worn by the space on rope sheave wheel face
Cross, be hinged with big friction wheel when big friction wheel is engaged with little friction pulley and pull brake press plate to make it compress the connecting rod of rope sheave,
Connecting rod gap is located on brake press plate, the spacing cooperation in both sides of connecting rod and brake press plate, and big friction wheel is away from gravity drop hammer
Disc is coaxially fixedly installed on wheel face, the outer rim of disc is laid with inclined pushing tooth, is fixed with the little friction pulley multiple
Position device, resetting means causes the reset that little friction pulley resets oblique with when rope sheave is inverted with pushing tooth slip press-fit
Face, the encoder is used to be connected with the transmission of elevator master control system, and elevator master control system is connected with magnet control.
Rectangular channel, the bearing of trend of rectangular channel and the axial direction one of big friction wheel are offered on the wheel face of described big friction wheel
Cause.
Described little friction pulley is ellipse, and a longitudinal end of little friction pulley stretches to big friction wheel.
Described connecting rod is passed and be arranged with the part of brake press plate stage clip, and one end of stage clip is pressed on brake press plate,
The other end is pressed in the top splenium arranged on the termination of connecting rod.
Braking of the present utility model uses big friction wheel and little friction pulley, once hypervelocity occurs in rope sheave, gravity drop hammer is just
Location structure can be triggered, little friction pulley will fall and be pressed on big friction wheel, two friction pulleys can be engaged moment, without the time
Postpone, in addition, the utility model is a kind of brand-new structure, there is provided a kind of new unidirectional limiter of speed.Meanwhile, in addition, main shaft
On be provided with encoder, elevator be in halted state when, rope sheave also can be in motionless state, once occur car slipping show
As encoder can detect the rotation of main shaft, and the signal transmission for detecting can be given elevator master control system, elevator master by encoder
Control system controls electromagnet action, triggers limiter of speed, and with this elevator car slipping is prevented.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the installation diagram of rope sheave in Fig. 1, big friction wheel, little friction pulley and disc；
Fig. 3 is the three-dimensional installation diagram of the rope sheave, big friction wheel and little friction pulley in Fig. 1；
Fig. 4 is the automatic anti-running car control figure of the elevator device that embodiment of the present utility model is applied.
Specific embodiment
A kind of embodiment of the new type auto anti-slip limiter of speed that unidirectionally automatically resets, in Fig. 1, Fig. 2 and Fig. 3, its base 1
On be equipped with rope sheave 2 and big friction wheel 3 by main axis, the two ends of main shaft are arranged on base 1, in main shaft by bearing
One end is equipped with encoder, and encoder can detect the rotation of main shaft, and main axis are represent once encoder to count, rope
Take turns 2 rotation stops to be assemblied on main shaft, main shaft drives rope sheave 2 to rotate, and steel wire rope is arranged with rope sheave.Big friction wheel 3 is to be set in
On main shaft, not with main axis, the diameter of big friction wheel 3 is filled less than the diameter of rope sheave 2 in the side surface pivots of rope sheave 2
It is furnished with little friction pulley 4, little friction pulley 4 is mounted on rope sheave 2, little by being extended on fixed part rotation on its outer peripheral face
Torsion spring is provided between friction pulley 4 and rope sheave 2, torsion spring gives the torsion of little friction pulley 4 so that little friction pulley 4 has all the time steering big
The trend of friction pulley 3, when little friction pulley 4 is in free state, in the presence of torsion spring, little friction pulley 4 can be pressed in greatly
On friction pulley 3, also rotate on rope sheave 2 and be provided with location structure 5, be ratchet positioning in location structure here and prior art
Location structure structure it is identical, location structure 5 is on the termination of fixed part so that little friction pulley is in away from big friction
The normal condition of wheel, also has torsion spring between location structure 5 and rope sheave 2, torsion spring is that the offer of location structure 5 is fixed portion
Power so that little friction pulley 4 overcomes torsion spring power thereon, keeps and the detached normal condition of big friction wheel 3, also rotates on rope sheave 2
Two gravity drop hammers 6 are equipped with, little friction pulley 4 and location structure 5 are in the side of rope sheave, and two gravity drop hammers 6 are in the another of rope sheave 2
Outer side.The set-up mode of two gravity drop hammers 6 on rope sheave is centrosymmetric mode, and the center of rotation of gravity drop hammer 6 is not located at
Two ends, one end quality more greatly tup end of gravity drop hammer 6, other end quality is less for hammer handle end, the hammer handle end of a gravity drop hammer 6
Compression-spring device is provided between rope sheave 2, compression-spring device causes the tup end of gravity drop hammer to be in the centre of rope sheave, heavy at this
Be connected with pull bar between the tup portion and the hammer handle portion of another gravity drop hammer of power hammer, the two ends of pull bar respectively with two gravity drop hammers 6
It is hinged, in 2 normal rotation of rope sheave, in the presence of compression-spring device, the tup portion of two gravity drop hammers 6 is in rope sheave 2
Center portion position.In 2 overspeed operation of rope sheave, under the influence of centrifugal force, two gravity drop hammers 6 can overcome the spring force of compression-spring device
Open, two tups all can turn to the edge of rope sheave 2, two hammer handles turn to the center of rope sheave.Triggering is convexly equipped with location structure 5
End, triggering end passes through rope sheave 2, and when the tup of gravity drop hammer turns to the outer rim of rope sheave, gravity drop hammer is to top pressure triggering end so that positioning
Structure overcomes the power of its torsion spring to rotate, and location structure 5 compresses little friction pulley 4 so that little friction pulley 4 continues to away from big friction wheel
3 direction rotates, and with the increase of rotation distance, location structure 5 can decontrol little friction pulley 4, work of the little friction pulley 4 in its torsion spring
It is pressed on under on big friction wheel 3, after location structure 5 decontrols little friction pulley 4, it is anti-that little friction pulley 4 will cross location structure 5
Come over to keep off location structure 5 so that location structure 5 can not reset, at this moment, the top pressure in the presence of torsion spring power of location structure 5 is little
Friction pulley 4 so that little friction pulley 4 is reliably in the state with the buckle of big friction wheel 3, in this state, if moved little
Friction pulley 4 makes it persistently rotate to the direction rotation away from big friction wheel 3, and little friction pulley 4 will be separated with location structure 5, fixed
The return in the presence of its torsion spring of bit architecture 5, decontrols little friction pulley 4, and location structure 5 will be positioned with little friction pulley 4.In base 1
On be rotatably equipped with brake press plate 7 in the side of rope sheave 2, be provided between the side of brake press plate 7 and the wheel face of big friction wheel
Connecting rod 8, the other end of connecting rod 8 is hinged with the wheel face of big friction wheel, and the other end of connecting rod 8 is opened up by the free end of brake press plate 7
Slide opening in pass through, connecting rod 8 and slide opening gap coordinate, and connecting rod 8 is passed and be arranged with the part of slide opening stage clip 9, the upper end of stage clip 9
In the top splenium 10 that the axis of guide is arranged, the lower end top pressure of stage clip 9 is on brake press plate 7 for top pressure.Due to connecting rod 8 and slide opening gap
Coordinate, so, can relatively rotate between connecting rod 8 and brake press plate 7.Here connecting rod 8 its actually tabular, with brake press plate
One end of cooperation is round bar, and connecting rod tabular partial width is more than the diameter of round bar part, so both junctions, plate portion
Just extend to outside the side face at round bar position, and, the diameter in the hole coordinated with connecting rod on brake press plate is also to compare plate-like portion
The width for dividing is little, and so, plate portion has the spacing cooperation in the side of brake press plate, and the termination of connecting rod is pressed with braking
The opposite side of plate passes through the spacing cooperation of stage clip.
Electromagnet is additionally provided with base, in electromagnet energization meeting top pressure gravity drop hammer so that gravity drop hammer opens and backs down
Positioner so that little friction pulley is engaged with big friction wheel, limiter of speed action, elevator stops.
Rectangular channel, the bearing of trend of rectangular channel and axial consistent, the square of big friction wheel are offered on the wheel face of big friction wheel
The groove depth of shape groove is the well width of far smaller than rectangular channel, the presence of rectangular channel can increase big friction wheel and little friction pulley it
Between friction pulley cause both occlusions relatively reliable.
Little friction pulley 4 is ellipse, and a longitudinal end of little friction pulley 4 is stretched to big friction wheel 3, so can ensure that size
Friction pulley can reliably mesh together.
Disc 11 is fixedly installed on the wheel face away from that side of gravity drop hammer of big friction wheel 3, disc 11 is sheet
Ring body, is radially laid with fixed calvus on the inner hole wall of disc 11, fixed calvus is fixed by screws on disc.Disc 11
Outer rim is laid with connection sheet, and connection sheet is wholely set with disc 11, and connection sheet is coplanar with disc 11, and connection sheet is to incline to set
Put on disc, that is to say, that connection sheet is not radially extending along disc.The side of connection sheet has pushing tooth, pushes away
Knob and connection sheet are one, push tooth and connection sheet is mutually perpendicular to.Resetting means 12 is further fixed on little friction pulley 4,
Resetting means 12 has a fixed mount, and fixed mount has a fixed plate, and fixed plate is adjacent on the lateral surface of little friction pulley,
So-called lateral surface refers to be near the face of rope sheave outer rim, that is, away from the face at rope sheave center.Fixed plate is by screw
It is fixed on little friction pulley, in the both sides of fixed plate an ear is each provided with, Liang Ge ears is in the work of little friction pulley
Make termination end.Resetting means also has a reset contact, and reset contact is with two side walls by strip board bending
With the U-shaped part of a bottom, fixed mount setting ear one end stretch between two side walls of reset contact, rotating shaft is worn simultaneously
Cross reset contact two side walls and Liang Ge ears so as to by reset contact rolling assembling on fixed mount.In reset contact
Bottom is installed with two top pressure screws, and two top pressure screws stretch to fixed plate, and two top pressure screws are in respectively the both sides of rotating shaft, so
When reset contact is rotated relative to fixed mount, two level pressure screws will encounter fixed plate, and such reset contact just has one
Rotation space, two top pressure screws can be spacing for reset contact in the two directions.The little friction pulley of direction of reset contact that
The inclined-plane of side is reset inclined-plane, and when big friction wheel is inverted, disc is and then rotated, and pushing tooth will push reset inclined-plane
And be slidably matched with reset inclined-plane so that reset contact is rotated with little friction pulley so that little friction pulley decontrols big friction wheel simultaneously
With little friction pulley location structure positioning.
The corresponding end of fixed mount is stretched between two side walls of reset contact, and reset contact rotates dress by playing two side walls
Fit on fixed mount, towards big friction wheel core wheel direction, the reset inclined-plane is arranged on reset contact and leans on the opening of reset contact
On the nearly side wall for pushing tooth.Reset contact is provided with extension spring, one end of extension spring on the side wall away from pushing tooth between fixed mount
Position of the fixed plate away from little friction pulley work termination is fixed on, the position has been wholely set convex portion, and extension spring is fixed on the convex portion
On.The other end of fixed extension spring is fixed on the position of the inner side for being in rotating shaft of the side wall of reset contact, and so-called inner side refers to be leaned on
The side at nearly big friction wheel center, can so cause reset inclined-plane to press to pushing tooth.Reset contact is away from the side wall for pushing tooth
As it is not provided with that side wall on reset inclined-plane.
Reset contact in the present embodiment be rolling assembling on fixed mount, Double-directional rotary position limiting structure be two spiral shells
Nail, adjusting the depth of the two spacing contact bottoms of screws screw-in can just adjust angle of the reset contact relative to fixed mount,
So as to adjust the angle on reset inclined-plane, so that the angle that little friction pulley is rotated enough guarantees greatly that little friction pulley is tied with little friction pulley positioning
Structure resets, and certainly, directly can also be fixed on reset contact on little friction pulley, so it is also possible that little in other enforcements
Friction pulley reversion resets.
Disc and resetting means in the present embodiment is all structure of the prior art.
Big friction wheel in the present embodiment is columned, and little friction pulley is elliptic cylindrical shape, both friction pulley, two
The occlusion of person is realized by frictional force, here, after little friction pulley is pressed on big friction wheel, if little friction pulley and rope
Torsion spring between wheel causes the little friction pulley to be to the pressure of big friction wheel：F；Coefficient of friction between big friction wheel and little friction pulley
For μ；Little friction pulley is respectively relative to the center of rotation of rope sheave to the tangent line at point of contact and the distance of normal of size friction pulley：L1
And L2, then, the occlusion condition of big friction wheel and little friction pulley is：F μ L1 ＞ FL2, i.e. μ L1 ＞ L2, otherwise, size friction pulley
Will be unable to engagement, then, when size friction pulley is engaged, it will be appreciated by those skilled in the art that needing to meet a upper condition.
Fig. 4 is the automatic anti-running car control figure of the elevator device that the present embodiment is applied, in elevator parking, due to super
The traction that load causes is not enough；The brake force that overload causes is not enough；Steel rope abrasion or greasy dirt that elevator maintenance is caused not in time,
Cause traction machine not enough；Or brake pad wear that elevator maintenance is caused not in time is excessive, causes the various originals of brake force deficiency etc.
Cause, it may appear that the phenomenon of car slipping, when car slipping all occurs from elevator parking, this when the volume installed in one end of main shaft
Code device with can be to elevator master control system transmission signal, it is, when main axis meet car slipping condition, encoder will
The signal transmission for having car slipping is connected to elevator master control system, elevator master control system with magnet control, in elevator main control
System is received after the car slipping signal that encoder is transmitted, and will control electromagnet energization, realizes the forced brake of rope sheave, automatically real
The appearance of existing anti-slip phenomenon.
The differing only in spine between individual event limiter of speed of the prior art of the individual event limiter of speed in the present embodiment
Wheel, ratchet have changed respectively big friction wheel and little friction pulley into, and it is just the same with structure.
The present embodiment be according to illustrating of making to the utility model, be not to restriction of the present utility model,
The function in appended claims, corresponding structure is not needed to be not provided with other embodiments.
It is any that this practicality is fallen within to the technical scheme that technical characteristic of the present utility model is carried out obtained by equivalent newly
The scope of type protection.
Claims (4)
1. a kind of new type auto anti-slip limiter of speed that unidirectionally automatically resets, including base, is provided with base by main axis
Rope sheave, one end of main shaft is provided with encoder, and gravity drop hammer is provided with the wheel face of rope sheave side, and the side of base rotates and is provided with rope
The brake press plate of wheel, is additionally provided with top pressure gravity drop hammer after powered up so that the electromagnet that opens of gravity drop hammer, its feature on base
It is：The big friction wheel coaxial with rope sheave is also rotatably equipped with base, on another side surface of rope sheave little friction is rotatably equipped with
Wheel, little friction pulley on rope sheave, is arranged by the fixed part rolling assembling of extension on its outer peripheral face between little friction pulley and rope sheave
Having makes little friction pulley turn to big friction wheel and be pressed in the torsion spring on big friction wheel, in the top of little friction pulley on the wheel face of rope sheave
Location structure is also rotatably equipped with, the positioning torsion spring for making location structure turn to fixed part is provided between location structure and rope sheave,
Location structure makes little friction pulley away from big friction wheel with the follower head elastic top press-fit of fixed part, is convexly equipped with location structure
Location structure is caused to overcome positioning torsion spring power and fixation with gravity drop hammer press-fit when the tup of gravity drop hammer turns to the outer rim of rope sheave
The triggering end that portion disengages, triggering end is passed through by the space on rope sheave wheel face, is hinged with big friction wheel and is rubbed with little in big friction wheel
Brake press plate is pulled to make it compress the connecting rod of rope sheave when wiping wheel engagement, connecting rod gap is located on brake press plate, connecting rod and braking
The spacing cooperation in the both sides of pressing plate, big friction wheel is away from being coaxially fixedly installed disc, the outer rim of disc on the wheel face of gravity drop hammer
Be laid with inclined pushing tooth, be fixed with resetting means on the little friction pulley, resetting means have when rope sheave is inverted with push away
Knob slip press-fit causes the reset inclined-plane that little friction pulley resets, the encoder to be used for and the transmission of elevator master control system
It is connected, elevator master control system is connected with magnet control.
2. the new type auto anti-slip limiter of speed that unidirectionally automatically resets according to claim 1, it is characterised in that：Described is big
Rectangular channel is offered on the wheel face of friction pulley, the bearing of trend of rectangular channel is axial consistent with big friction wheel.
3. the new type auto anti-slip limiter of speed that unidirectionally automatically resets according to claim 1 and 2, it is characterised in that：It is described
Little friction pulley be ellipse, a longitudinal end of little friction pulley stretches to big friction wheel.
4. the new type auto anti-slip limiter of speed that unidirectionally automatically resets according to claim 3, it is characterised in that：Described company
Bar is passed and be arranged with the part of brake press plate stage clip, and one end of stage clip is pressed on brake press plate, and the other end is pressed on connecting rod
Termination on arrange top splenium on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664125.9U CN206126543U (en) | 2016-06-29 | 2016-06-29 | Novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664125.9U CN206126543U (en) | 2016-06-29 | 2016-06-29 | Novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206126543U true CN206126543U (en) | 2017-04-26 |
Family
ID=58560954
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620664125.9U Expired - Fee Related CN206126543U (en) | 2016-06-29 | 2016-06-29 | Novel automatically, prevent one -way automatic re -setting overspeed governor of swift current car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206126543U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947829A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way automatic reset speed limiter with automatic car sliding preventing function |
| CN111573550A (en) * | 2020-05-18 | 2020-08-25 | 安徽省华腾农业科技有限公司 | Agricultural lifting device stall self-locking assembly utilizing electromagnetic pole-changing principle |
-
2016
- 2016-06-29 CN CN201620664125.9U patent/CN206126543U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947829A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way automatic reset speed limiter with automatic car sliding preventing function |
| CN111573550A (en) * | 2020-05-18 | 2020-08-25 | 安徽省华腾农业科技有限公司 | Agricultural lifting device stall self-locking assembly utilizing electromagnetic pole-changing principle |
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