CN2680637Y - Bidirectional elevator overspeed governor - Google Patents
Bidirectional elevator overspeed governor Download PDFInfo
- Publication number
- CN2680637Y CN2680637Y CN 200420007085 CN200420007085U CN2680637Y CN 2680637 Y CN2680637 Y CN 2680637Y CN 200420007085 CN200420007085 CN 200420007085 CN 200420007085 U CN200420007085 U CN 200420007085U CN 2680637 Y CN2680637 Y CN 2680637Y
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- centrifugal block
- clutch use
- camshaft
- rope sheave
- sheave
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Abstract
A bidirectional elevator overspeed governor of the utility model is composed of a rope pulley. The rope pulley is installed rotatable on a rope pulley axis and the outer margin of the rope pulley is equipped rotatable with a cam axle I. Because the outer margin of the rope pulley is equipped rotatable with the cam axle I and the cam axle II, the cam axle I and the cam axle II are respectively used for the descending braking and the ascending braking of the overspeed governor and used for the braking electrical signal which is sent out when the descending and the ascending of the overspeed governor are overspeeding. Because the center of gravity point of a centrifugal block I and the center of gravity point of the centrifugal block II distribute in the farther location away from the center of the rope pulley, the scope of adjusting the speed is wider. Because the connection line between the center of gravity point of the centrifugal block I and the center of gravity point of the centrifugal block II, the connection line between the center of gravity point of the centrifugal block I and the axial center of the swivel pin axis I and the connection line between the center of gravity point of the centrifugal block II and the axial center of the swivel pin axis II and are mutual vertical, the braking which is caused by the false action of the bidirectional elevator overspeed governor is reduced. The bidirectional elevator overspeed governor of the utility model has the advantages of simple structure, reliable action, easy processing, low cost and handy operation, etc.
Description
Technical field
The utility model relates to the safety device that a kind of elevator works when the irregular operating state, specifically relate to a kind ofly prevent elevator hoist or the two-way elevator governor of hypervelocity when descending.
Background technology
When the running velocity of elevator hoist or decline surpasses command speed; or during the traction steel wire fracture of rope of elevator; just need safety device in time system to be protected; to prevent unexpected the generation; but the elevator that existing velocity limiter normally only descends to hypervelocity is braked it by outage, mechanical brake device; make on its guide rail that rests on elevator; and for bringing the elevator of dangerous hypervelocity rising equally to safe operation; then do not have corresponding safety guard, stayed potential safety hazard for thus the normal operation of equipment.
The utility model content
The purpose of this utility model provides the two-way elevator governor that a kind of elevator that hypervelocity is risen and descends can both send the braking electric signal and carry out mechanical braking.
Two-way elevator governor of the present utility model, comprise rope sheave, rope sheave is installed in rotation on the sheave shaft, sheave shaft is fixed on the middle part of frame, the rear sleeve that is positioned at rope sheave on the sheave shaft is equipped with brake disc, the outer rim of rope sheave can be provided with camshaft I rotationally, be positioned on the camshaft I of rope sheave rear end and have the conter clockwise brake shoe expander, the periphery of conter clockwise brake shoe expander matches with described brake disc, the front end that is positioned at rope sheave makes camshaft I be provided with torsion spring I with rotating counterclockwise, the front end that is positioned at torsion spring I on the camshaft I is provided with screw rod I, the left end of screw rod I and positioning plate I hook mutually connects, the middle part of positioning plate I is adopted and can swingingly be installed on the centrifugal block for clutch use I about bearing pin I, the right-hand member hook of positioning plate I is connected with extension spring I, the other end of extension spring I is connected on the centrifugal block for clutch use I, the right-hand member of centrifugal block for clutch use I adopts an I that ships and resell on another market to be installed on the rope sheave, centrifugal block for clutch use I adopts rotating shaft I to be connected with linkage component one end, the other end of linkage component adopts rotating shaft II to link to each other with centrifugal block for clutch use II, the left end of centrifugal block for clutch use II adopts ship and resell on another market an II and described centrifugal block for clutch use I relatively to be installed on the rope sheave, the outside of described centrifugal block for clutch use I and described centrifugal block for clutch use II is respectively equipped with plays the bar screw, playing the bar screw matches with the contact of snap switch I, snap switch I, be installed in the top of described frame, adopt about bearing pin II at the middle part of described centrifugal block for clutch use II can swingingly be equipped with positioning plate II, the right-hand member of positioning plate II pushes up mutually with screw rod II, its left end hook is connected with extension spring II, the other end of extension spring II is connected on the centrifugal block for clutch use II, described screw rod II is installed in the front end of camshaft II, the rear portion that is positioned at screw rod II on the camshaft II makes camshaft II be provided with torsion spring II with clockwise rotating, camshaft II can be installed on the outer rim of described rope sheave rotationally, be positioned on the camshaft II of rope sheave rear end and have the cw brake shoe expander, the periphery of cw brake shoe expander matches with described brake disc, the line between the focus point of the focus point of described centrifugal block for clutch use I and described centrifugal block for clutch use II, vertical mutually with the line between the axle center of line between the axle center of the focus point of described centrifugal block for clutch use I and an I that ships and resell on another market and the focus point of described centrifugal block for clutch use II and an II that ships and resell on another market.
Two-way elevator governor of the present utility model, the middle part of wherein said frame rear end lateral surface is provided with snap switch II, be connected with screw with longitudinally piercing into described frame on the contact of snap switch II, the outside on the screw is set with compression spring, its inboard is set with switch and makes bar, and switch is beaten the inner end of bar and matched with teeth groove on the described brake disc cylindrical end face.
Two-way elevator governor of the present utility model, can be sleeved on the described sheave shaft rotationally on the wherein said brake disc, front and back end with brake disc on the sheave shaft is fixed with friction lining respectively, two friction linings adopt disk spring to hold out against on the front/rear end of brake disc respectively, and disk spring is sleeved on the sheave shaft.
Two-way elevator governor of the present utility model wherein is provided with pad between each described disk spring and the described friction lining.
Two-way elevator governor of the present utility model, wherein said frame comprises base plate, the forward and backward both sides of base plate are adopted screw retention front side plate and rear quarter panel respectively, and the two ends of described sheave shaft have screw thread, and sheave shaft adopts nut to be fixed on the middle part of front side plate and rear quarter panel.
The advantage of two-way elevator governor of the present utility model is: because of the outer rim of its rope sheave can be provided with camshaft I and camshaft II rotationally, can be respectively applied for the descending and up braking of velocity limiter, and send the braking electric signal in the time of can being used for the descending and up hypervelocity of velocity limiter simultaneously, because the focus point of centrifugal block for clutch use I and the focus point of centrifugal block for clutch use II are distributed in apart from position far away, rope sheave center, thereby make it have the wider range of regulating the speed, simultaneously because the line between the focus point of the focus point of centrifugal block for clutch use I and centrifugal block for clutch use II, vertical mutually with the line between the axle center of line between the axle center of the focus point of centrifugal block for clutch use I and an I that ships and resell on another market and the focus point of centrifugal block for clutch use II and an II that ships and resell on another market, reduce two-way elevator governor and started the braking that the moment misoperation causes.It is low that historical facts or anecdotes has simple in structure, reliable in action, easily processing, cost with later-model two-way elevator governor, advantages such as control comfort.
Below in conjunction with accompanying drawing two-way elevator governor of the present utility model is described in further detail.
Description of drawings
Fig. 1 is the front view of the structural representation of two-way elevator governor of the present utility model;
Fig. 2 is the A-A section-drawing of Fig. 1;
Fig. 3 is the B-B section-drawing of Fig. 1;
Fig. 4 is the C-C section-drawing of Fig. 1;
Fig. 5 is the D-D section-drawing of Fig. 1;
Fig. 6 is the E-E section-drawing of Fig. 1.
The specific embodiment
By Fig. 1 and Fig. 2 as can be seen, two-way elevator governor of the present utility model, comprise the rope sheave 2 that is wound with steel rope 28, rope sheave 2 is installed in rotation on the sheave shaft 13, sheave shaft 13 is fixed on the middle part of frame 14, the rear sleeve that is positioned at rope sheave 2 on the sheave shaft 13 is equipped with brake disc 3, the outer rim of rope sheave 2 can be provided with camshaft I1 rotationally, be positioned on the camshaft I1 of rope sheave 2 rear ends and have conter clockwise brake shoe expander 4, the periphery of conter clockwise brake shoe expander 4 matches with brake disc 3, the front end that is positioned at rope sheave 2 makes camshaft I1 be provided with torsion spring I5 with rotating counterclockwise, the front end that is positioned at torsion spring I5 on the camshaft I1 is provided with screw rod I6, the left end of screw rod I6 and positioning plate I7 hook mutually connects, the middle part of positioning plate I7 is adopted and can swingingly be installed on the centrifugal block for clutch use I9 about bearing pin I8, the right-hand member hook of positioning plate I7 is connected with extension spring I10, and the other end of extension spring I10 is connected on the centrifugal block for clutch use I9.As shown in Figure 3, the right-hand member of centrifugal block for clutch use I9 adopts an I15 that ships and resell on another market to be installed on the rope sheave 2.As shown in Figure 5, centrifugal block for clutch use I9 adopts rotating shaft I11 to be connected with linkage component 12 1 ends; As shown in Figure 6, the other end of linkage component 12 adopts rotating shaft II11 ' to link to each other with centrifugal block for clutch use II9 ', the left end of centrifugal block for clutch use II9 ' adopts an II15 ' that ships and resell on another market relatively to be installed on the rope sheave 2 with centrifugal block for clutch use I9, the outside of centrifugal block for clutch use I9 and centrifugal block for clutch use II9 ' is respectively equipped with plays bar screw 33,33 ', play bar screw 33,33 ' match with the contact of snap switch I16, snap switch I16, be installed in the top of frame 14, adopt about bearing pin II8 ' at the middle part of centrifugal block for clutch use II9 ' can swingingly be equipped with positioning plate II7 ', the right-hand member of positioning plate II7 ' pushes up mutually with screw rod II6 ', its left end hook is connected with extension spring II10 ', the other end of extension spring II10 ' is connected on the centrifugal block for clutch use II9 ', screw rod II6 ' is installed in the front end of camshaft II1 ', the rear portion that is positioned at screw rod II6 ' on the camshaft II1 ' makes camshaft II1 ' be provided with torsion spring II5 ' with clockwise rotating, camshaft II1 ' can be installed on the outer rim of rope sheave 2 rotationally, be positioned at have cw brake shoe expander 4 on the camshaft II1 ' of rope sheave 2 rear ends ', cw brake shoe expander 4 ' periphery match the line between the focus point of the focus point of centrifugal block for clutch use I9 and centrifugal block for clutch use II9 ' with brake disc 3, vertical mutually with the line between the axle center of line between the axle center of the focus point of centrifugal block for clutch use I9 and an I15 that ships and resell on another market and the focus point of centrifugal block for clutch use II9 ' and an II15 ' that ships and resell on another market.
The middle part of frame 14 rear end lateral surfaces is provided with snap switch II16 ', longitudinally pierce into frame 14 ground on the contact of snap switch II16 ' and be connected with screw 17, the outside on the screw 17 is set with compression spring 18, its inboard is set with switch and makes bar 19, and switch is beaten the inner end of bar 19 and matched with the teeth groove of brake disc 3 cylindrical upper surfaces.
The utility model bidirectional speed limiter in use, when elevator surpasses that command speed moves downward and when reaching the contact responsiveness, be that rope sheave 2 is when clockwise rotating above command speed, as shown in Figure 1 and Figure 4, the centrifugal block for clutch use I9 and the centrifugal block for clutch use II9 ' that are connected on the rope sheave 2 will press screw rod 29 by square cotter axle 30, screw rod 29 is pressed to compression spring 27 by spring perch 31 again, its big end outwards opens simultaneously, at this moment, be connected on two centrifugal block for clutch use I9 and the centrifugal block for clutch use II9 ' cylindrical play bar screw 33 and beat bar screw 33 ' in a snap switch I16 that just will be positioned on rear quarter panel 26 tops open, make the towing machine outage, make elevator out of service.If elevator continues hypervelocity operation downwards for a certain reason after the towing machine outage, two centrifugal block for clutch use I9 and centrifugal block for clutch use II9 ' will continue to press screw rod 29 by square cotter axle 30, screw rod 29 compresses compression spring 27 by spring perch 31 again, and its big end is further outwards opened, when velocity limiter reaches its responsiveness, the positioning plate I7 that is connected on the centrifugal block for clutch use I9 outwards opens together with centrifugal block for clutch use I9, so that positioning plate I7 and the screw rod I6 that is connected on the camshaft I1 are thrown off, this moment is under the twisting force that is set in the torsion spring I5 on the camshaft I1, the conter clockwise brake shoe expander 4 of camshaft I1 contacts with the cylindrical of brake disc 3, under the effect of friction force, conter clockwise brake shoe expander 4 blocks tight more with brake disc 3 more, because the effect of the disk spring 21 of brake disc 3 both sides and friction lining 20 is rotated the conter clockwise brake shoe expander 4 of brake disc 3 prevention camshaft I1 and the rope sheave 2 that is attached thereto,, rope sheave 2 stops simultaneously until being rotated.If it is descending that elevator continues hypervelocity in this process,, make deceleration of elevator and stop just speed limiter wire rope 28 is mentioned safety tongs with the friction force that rope sheave 2 produces; At deceleration of elevator but in the process that does not stop as yet, elevator continues to move downward under the effect of force of inertia, thereby produce to drive rope sheave 2 and the brake disc 3 of the interlock trend of rotating together with it, between the pulling force of speed limiter wire rope 28 is greater than brake disc 3 and friction lining 20 during friction force, brake disc 3 and rope sheave 2 beginnings are rotated together and are made bar 19 by switch, make snap switch II16 ' open, make the towing machine outage once more.
When velocity limiter need recover normally to move, start elevator functions lifting elevator by force by using, promptly allow rope sheave 2 rotate counterclockwise, brake disc 3 and the conter clockwise brake shoe expander 4 of camshaft I1 are thrown off, the people resets for making camshaft I1 then, even the positioning plate I7 on the centrifugal block for clutch use I9 hooks the screw rod I6 on the camshaft I1, to be connected in switch on the snap switch II16 ' again makes bar 19 and is pulled to its termination, surpass the end face of brake disc 3 and rotate to an angle, after making the contact of snap switch II16 ' return to normal operation position, switch being made bar 19 unclamps again, and it is fallen on brake disc 3 end faces apart from its nearest teeth groove, after at last the contact of snap switch I16 being returned to normal operation position, velocity limiter can recover normal operation.
In like manner, when elevator reaches the contact responsiveness above the command speed upward movement, when both rope sheave 2 rotates counterclockwise above command speed, as shown in Figure 1 and Figure 4, the centrifugal block for clutch use I9 and the centrifugal block for clutch use II9 ' that are connected on the rope sheave 2 will press screw rod 29 by square cotter axle 30, screw rod 29 is pressed to compression spring 27 by spring perch 31 again, and outwards open simultaneously, at this moment, be connected on two centrifugal block for clutch use I9 and the centrifugal block for clutch use II9 ' cylindrical play bar screw 33 and beat bar screw 33 ' in a snap switch I16 that just will be positioned on the rear quarter panel 26 open, make the towing machine outage, make elevator out of service.If elevator continues upwards operation of hypervelocity for a certain reason after the towing machine outage, two centrifugal block for clutch use I9 and centrifugal block for clutch use II9 ' will press screw rod 29 by square cotter axle 30, screw rod 29 continues to compress compression spring 27 by spring perch 31 again, and further outwards open simultaneously, when velocity limiter reaches its responsiveness, the positioning plate II7 ' that is connected on the centrifugal block for clutch use II9 ' outwards opens together with centrifugal block for clutch use II9 ', so that make positioning plate II7 ' and the screw rod II6 ' disengagement that is connected on the camshaft II1 ', this moment is under the twisting force that is set in the torsion spring II5 ' on the camshaft II1 ', the cw brake shoe expander 4 of camshaft II1 ' ' contact with the cylindrical of brake disc 3, under the effect of friction force, cw brake shoe expander 4 ' block tight more more with brake disc 3, simultaneously since the effect of the disk spring 21 of brake disc 3 both sides and friction lining 20 make brake disc 3 stop cw brake shoe expanders 4 ' and the rope sheave 2 that is attached thereto rotate until rope sheave 2 is rotated and stop, it is up that elevator continues hypervelocity in this process, steel rope 28 is just mentioned safety tongs with the friction force that rope sheave 2 produces, and makes deceleration of elevator and stop; At deceleration of elevator but in the process that does not stop as yet, elevator continues upward movement under the effect of force of inertia, thereby produce to drive rope sheave 2 and the brake disc 3 of the interlock trend of rotating together with it, when the pulling force of steel rope 28 during greater than the friction force between brake disc 3 and the friction lining 20, brake disc 3 and rope sheave 2 begin to rotate and make bar 19 by switch snap switch II16 ' is opened together, make the towing machine outage once more.
When velocity limiter need recover normally to move, start elevator functions landing elevator by force by use and make brake disc 3 and cw brake shoe expander 4 ' disengagement, promptly allow rope sheave 2 clockwise rotate, the people resets for making camshaft II1 ' then, soon positioning plate I7 on centrifugal block for clutch use I9 and the centrifugal block for clutch use II9 ' and positioning plate II7 ' hook and withstand screw rod I6 and the screw rod II6 ' on camshaft I1 and the camshaft II1 ' respectively, to be connected in switch on the snap switch II16 ' again makes bar 19 and is pulled to its termination and surpasses the end face of brake disc 3 and rotate to an angle, after making the contact of snap switch II16 ' return to normal operation position, switch being made bar 19 unclamps and it is fallen on brake disc 3 end faces apart from its nearest teeth groove again, after at last the contact of snap switch I16 being returned to normal operation position, velocity limiter can recover normal operation.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineering staff make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (5)
1. two-way elevator governor, comprise rope sheave (2), rope sheave (2) is installed in rotation on the sheave shaft (13), sheave shaft (13) is fixed on the middle part of frame (14), the rear sleeve that is positioned at rope sheave (2) on the sheave shaft (13) is equipped with brake disc (3), the outer rim of rope sheave (2) can be provided with camshaft I (1) rotationally, be positioned on the camshaft I (1) of rope sheave (2) rear end and have conter clockwise brake shoe expander (4), the periphery of conter clockwise brake shoe expander (4) matches with described brake disc (3), the front end that is positioned at rope sheave (2) makes camshaft I (1) be provided with torsion spring I (5) with rotating counterclockwise, the front end that is positioned at torsion spring I (5) on the camshaft I (1) is provided with screw rod I (6), the left end of screw rod I (6) and positioning plate I (7) hook mutually connects, the middle part of positioning plate I (7) is adopted about bearing pin I (8) and can swingingly be installed on the centrifugal block for clutch use I (9), the right-hand member hook of positioning plate I (7) is connected with extension spring I (10), the other end of extension spring I (10) is connected on the centrifugal block for clutch use I (9), the right-hand member of centrifugal block for clutch use I (9) adopts the I (15) that ships and resell on another market to be installed on the rope sheave (2), centrifugal block for clutch use I (9) adopts rotating shaft I (11) to be connected with linkage component (12) one ends, the other end of linkage component (12) adopts rotating shaft II (11 ') to link to each other with centrifugal block for clutch use II (9 '), the left end of centrifugal block for clutch use II (9 ') adopts the II (15 ') that ships and resell on another market relatively to be installed on the rope sheave (2) with described centrifugal block for clutch use I (9), the outside of described centrifugal block for clutch use I (9) and described centrifugal block for clutch use II (9 ') is respectively equipped with plays bar screw (33,33 '), play bar screw (33,33 ') match with the contact of snap switch I (16), snap switch I (16), be installed in the top of described frame (14), it is characterized in that: described centrifugal block for clutch use II (9 ') adopts about bearing pin II (8 ') at the middle part positioning plate II (7 ') can swingingly be installed, the right-hand member of positioning plate II (7 ') pushes up mutually with screw rod II (6 '), its left end hook is connected with extension spring II (10 '), the other end of extension spring II (10 ') is connected on the centrifugal block for clutch use II (9 '), described screw rod II (6 ') is installed in the front end of camshaft II (1 '), be positioned at screw rod II (6 ') rear portion on the camshaft II (1 ') makes camshaft II (1 ') be provided with torsion spring II (5 ') with clockwise rotating, camshaft II (1 ') can be installed on the outer rim of described rope sheave (2) rotationally, be positioned on the camshaft II (1 ') of rope sheave (2) rear end and have cw brake shoe expander (4 '), the periphery of cw brake shoe expander (4 ') matches with described brake disc (3), the line between the focus point of the focus point of described centrifugal block for clutch use I (9) and described centrifugal block for clutch use II (9 '), vertical mutually with the line between the axle center of line between the axle center of the focus point of described centrifugal block for clutch use I (9) and an I (15) of shipping and reselling on another market and the focus point of described centrifugal block for clutch use II (9 ') and an II (15 ') of shipping and reselling on another market.
2. two-way elevator governor according to claim 1, it is characterized in that: the middle part of described frame (14) rear end lateral surface is provided with snap switch II (16 '), longitudinally pierce into described frame on the contact of snap switch II (16 ') and be connected with screw (17) (14), the outside on the screw (17) is set with compression spring (18), its inboard is set with switch and makes bar (19), and switch is beaten the inner end of bar (19) and matched with teeth groove on described brake disc (3) the cylindrical end face.
3. two-way elevator governor according to claim 2, it is characterized in that: can be sleeved on rotationally on the described brake disc (3) on the described sheave shaft (13), sheave shaft (13) is gone up and the front and back end of brake disc (3) is fixed with friction lining (20) respectively, two friction linings (20) adopt disk spring (21) to hold out against on the front/rear end of brake disc (3) respectively, and disk spring (21) is sleeved on the sheave shaft (13).
4. two-way elevator governor according to claim 3 is characterized in that: be provided with pad (22) between each described disk spring (21) and the described friction lining (20).
5. according to any one described two-way elevator governor in the claim 1 to 4, it is characterized in that: described frame (14) comprises base plate (23), the forward and backward both sides of base plate (23) are adopted screw (24) fixedly front side plate (25) and rear quarter panel (26) respectively, the two ends of described sheave shaft (13) have screw thread, and sheave shaft (13) adopts nut to be fixed on the middle part of front side plate (25) and rear quarter panel (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007085 CN2680637Y (en) | 2004-03-18 | 2004-03-18 | Bidirectional elevator overspeed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007085 CN2680637Y (en) | 2004-03-18 | 2004-03-18 | Bidirectional elevator overspeed governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2680637Y true CN2680637Y (en) | 2005-02-23 |
Family
ID=34605934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420007085 Expired - Fee Related CN2680637Y (en) | 2004-03-18 | 2004-03-18 | Bidirectional elevator overspeed governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2680637Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| CN105460729A (en) * | 2016-01-04 | 2016-04-06 | 河北东方富达机械有限公司 | Elevator overspeed governor |
| CN105565104A (en) * | 2015-12-22 | 2016-05-11 | 杭州康特尔电梯部件有限公司 | Elevator speed limiter |
-
2004
- 2004-03-18 CN CN 200420007085 patent/CN2680637Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| CN105565104A (en) * | 2015-12-22 | 2016-05-11 | 杭州康特尔电梯部件有限公司 | Elevator speed limiter |
| CN105565104B (en) * | 2015-12-22 | 2019-07-23 | 杭州康特尔电梯部件有限公司 | Elevator governor |
| CN105460729A (en) * | 2016-01-04 | 2016-04-06 | 河北东方富达机械有限公司 | Elevator overspeed governor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |