CN109809273A - A kind of elevator safety tongs - Google Patents
A kind of elevator safety tongs Download PDFInfo
- Publication number
- CN109809273A CN109809273A CN201910202823.5A CN201910202823A CN109809273A CN 109809273 A CN109809273 A CN 109809273A CN 201910202823 A CN201910202823 A CN 201910202823A CN 109809273 A CN109809273 A CN 109809273A
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- Prior art keywords
- hook
- ratchet
- flywheel
- safety device
- slip hook
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Abstract
The present invention relates to elevator technology fields.A kind of elevator safety tongs, including fixed plate, the first safety device, the second safety device, two hook axis fixing seats, hook axis, slip hook and flywheel mechanism.And two middle side parts of fixed plate are connected by spring pull rod.First safety device and the second safety device are separately positioned on the two sides of fixed plate and match with the guide rail of two sides, complete locking by the first safety device and the second safety device.The lower section of connection cross bar is arranged in two hook fixing seats, and two hook fixing seats pass through hook axis connection.Slip hook is hinged on hook axis.Slip hook can complete rotation on hook axis.The U-shaped shape of slip hook.And the hook of slip hook, towards the back lower place, slip hook bottom is provided with slip hook recess.Flywheel mechanism is arranged below slip hook, and matches with slip hook and complete locking.The beneficial effects of the present invention are: locking speed is adjustable, be attached with centrifugation function and improves braking effect and security performance.
Description
Technical field
The present invention relates to elevator technology field more particularly to a kind of elevator safety tongs.
Background technique
Safety tongs is the important safety component of lift facility, can elevator overspeed and it is out of control when play safety guarantee weight
It acts on, it may be said that just because of the emergence and development of safety tongs, just becoming elevator, a kind of skyscraper is essential to hang down
Straight means of transport.Safety tongs device is under the manipulation of limiter of speed, when vertical transferring apparatus hypervelocity, disconnected rope etc. occurs very seriously
Failure after, by the urgent stop of carriage and be clamped in a kind of safety device on guide rail.The movement of safety tongs device is to pass through limit
Fast device movement makes rope-clamping pliers clamp governor rope, and as carriage is run down, governor rope lifts safety tongs link mechanism, safety
Link mechanism movement is clamped, safety tongs braking member and guide rail contact is driven, simultaneously clamps on the safety tongs on guide rail both sides in guide rail
On, reach carriage stop.It provides effective protective effect to the safe operation of elevator, is generally installed in car frame or right
On weight frame.But since the structure of current safety tongs is there are also some unreasonable places, it is caused often to be easy to happen failure, failure is former
Because complicated and changeable, and the factor for inspiring its malfunction is also more, therefore there are some potential safety problemss, it is possible to elevator and multiply
Visitor has serious consequences.
Summary of the invention
The purpose of the present invention is: in view of the deficienciess of the prior art, providing, a kind of locking speed is adjustable, is attached with centrifugation
Function and the elevator safety tongs for improving braking effect and security performance.
For the purpose of the present invention, it is achieved using following technical scheme:
A kind of elevator safety tongs, including fixed plate, the first safety device, the second safety device, two hook axis are fixed
Seat, hook axis, slip hook and flywheel mechanism；First safety device and the second safety device is separately positioned on the two of fixed plate
Side；First safety device includes safety tongs base, locating piece, connecting block, pin shaft, coordinating block, defelctor apron and pull rod；Described
Safety tongs base is fixed in fixed plate；Locating slot and connecting groove, the positioning are respectively arranged on safety tongs base
Block is arranged on the locating slot；The first strip through-hole is provided on the connecting groove；The connecting block setting is being held in the mouth
On access slot, pin shaft hole is provided in the middle part of connecting block, the pin shaft passes through pin shaft hole and is arranged on the first strip through-hole；Linking
Mating groove is provided on block, the coordinating block is arranged on mating groove, and the defelctor apron is arranged on safety tongs base
And by connecting block and coordinating block limit in connecting groove；The Article 2 to match with the first strip through-hole is provided on defelctor apron
Shape through-hole；The outer end of the pin shaft is arranged in second bar through hole；The bottom of connecting block is arranged in the pull rod；The
The pull rod of the pull rod of one safety device and the second safety device passes through connection cross bar connection；Two hook fixing seats setting
In the lower section of connection cross bar, two hook fixing seats pass through the hook axis connection；The slip hook is hinged on hook axis；
Flywheel mechanism is in immediately below slip hook, and flywheel mechanism drives slip hook rotation.
Preferably, the first safety device and the second safety device are symmetrical arranged, and the first safety device and the second safety
Apparatus structure is identical.
Preferably, flywheel mechanism includes two adjustment seats, flywheel shaft, Flywheel disc, the first ratchet, the second ratchet and limit
Position plate；The lower section of slip hook is arranged in two adjustment seats, is provided with adjusting bearing, the flywheel in each adjustment seat
The left part and right part of axis are separately positioned on two adjusting bearings；The both ends of flywheel shaft are respectively arranged with the first pinch roller and the second pressure
Wheel, the Flywheel disc is arranged on flywheel shaft and Flywheel disc is located between two adjusting bearings, one end of Flywheel disc and first
One end of ratchet is fixedly connected, and the other end of Flywheel disc is fixedly connected with one end of the second ratchet；The limit plate setting exists
On flywheel shaft and arranged in a crossed manner with Flywheel disc, the both ends of limit plate are provided with limit matching hole, one end of limit plate and first
The other end of ratchet is connected by the first bayonet fittings, and the other end of the other end of limit plate and the second ratchet passes through the second pin
It is cooperatively connected.
Preferably, the U-shaped shape of the fixed plate, and two middle side parts of fixed plate are connected by spring pull rod.Enhancing
Support performance improves firmness.
Preferably, being all provided on the arc-shaped shape of the first ratchet and the second ratchet and the first ratchet and the second ratchet
It is equipped with ratchet notches.It can preferably cooperate with slip hook, play better braking effect.
Preferably, the connecting groove and connecting block is in the shape of a right-angled ladder, first strip through-hole and second
Bevel edge of the strip through-hole respectively with the right angle ladder is arranged in parallel.Locking can more preferably be carried out.
Preferably, the U-shaped shape of the slip hook；And the hook of slip hook, towards the back lower place, slip hook bottom is provided with slip hook
Recess.It prevents slip hook from colliding with limit plate, reduces failure.
Preferably, width of the width of the first ratchet fixing end less than the first ratchet abutting end；Described
Width of the width of two ratchet fixing ends less than the second ratchet abutting end.It can be realized centrifugal effect, increase the ability of braking, and
And it is preferably matched with slip hook.
Preferably, the limit plate and Flywheel disc is in racetrack shape, and the length of limit plate is greater than Flywheel disc
Length.
Compared with prior art, the beneficial effects of the present invention are:
(1) locking speed can be adjusted, and convenient for control decrease speed, can play better locking effect；
(2) by the centrifugal movement of flywheel mechanism, flywheel mechanism is enable preferably to match with slip hook, improves safety；
(3) it is prevented by gradual locking, can be improved the stability of locking.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the explosive view of the first safety device.
Fig. 3 is the explosive view of flywheel mechanism.
Specific embodiment
In order to make the present invention more obvious and understandable, cooperation attached drawing is described in detail below.
As shown in Figure 1, a kind of elevator safety tongs, including fixed plate 1, the first safety device 2, the second safety device
201, two hook axis fixing seats 3, hook axis 4, slip hook 5 and flywheel mechanism 6.The U-shaped shape of fixed plate 1, and the two sides of fixed plate 1
Middle part is connected by spring pull rod 101.Enhance support performance, improves firmness.First safety device 2 and the second safety device
201 are separately positioned on the two sides of fixed plate 1, and match with the guide rail of two sides, are filled by the first safety device 2 and the second safety
Set 201 completion lockings.The lower section of connection cross bar 271 is arranged in two hook fixing seats 3, and two hook fixing seats 3 pass through hook
Axis 4 connects.Slip hook limit plate is provided in one piece of hook fixing seat 3.Slip hook 5 is hinged on hook axis 4.Slip hook can linked up with
Rotation is completed on axis 4.The U-shaped shape of slip hook 5.And the hook of slip hook 5, towards the back lower place, 5 bottom of slip hook is provided with slip hook recess 51.
It prevents slip hook from colliding with limit plate, reduces failure.The flywheel mechanism 6 is arranged below slip hook 5, and with 5 phase of slip hook
Locking is completed in cooperation.
As depicted in figs. 1 and 2, the first safety device 2 and the second safety device 201 are symmetrical arranged, and structure is identical.First
Safety device 2 and the second safety device 201 include safety tongs base 21, locating piece 22, connecting block 23, pin shaft 24, coordinating block
25, defelctor apron 26 and pull rod 27.Safety tongs base 21 is fixed in fixed plate 1.It is respectively set on safety tongs base 21
There are locating slot 211 and connecting groove 212, locating piece 22 is arranged on locating slot 211.It is logical that the first bar shaped is provided on connecting groove 212
Hole 213.Connecting block 23 is arranged on connecting groove 212, and connecting groove 212 and connecting block 23 are in the shape of a right-angled ladder, in connecting block 23
Portion is provided with pin shaft hole 231, and pin shaft 24 passes through pin shaft hole 231 and is arranged on the first strip through-hole 213.It is arranged in connecting block 23
There is mating groove 232, coordinating block 25 is arranged on mating groove 232, and defelctor apron 26 is arranged on safety tongs base 21 and will linking
Block 23 and the limit of coordinating block 25 are in connecting groove 212.To match with the first strip through-hole 213 is provided on defelctor apron 26
Two strip through-holes 261.The bevel edge of first strip through-hole 213 and second bar through hole 261 respectively with right angle ladder is arranged in parallel.It can
More preferably cooperated with connecting block 23, the outer end for preferably completing locking pin 24 is arranged in second bar through hole 261.Pull rod
27 are arranged in the bottom of connecting block 23.The pull rod 27 of the pull rod 27 of first safety device 2 and the second safety device 201 passes through company
Connect the connection of cross bar 271.
When work, hooked by slip hook 5 by axis 4 is linked up with, it is in a rectangular trapezoid by two sides connecting block 23 when slip hook unclamps
Shape simultaneously moves up, and keeps the angle between connecting block 23 and locating piece 22 smaller and smaller, so as to make two sides connecting block 23 with
Blocking for two side rails, stops vertical transferring apparatus.It can be improved the efficiency and locking of locking by right-angled trapezium shape
Stability increases security performance.
As shown in figures 1 and 3, flywheel mechanism 6 includes two adjustment seats 61, flywheel shaft 62, Flywheel disc 63, the first ratchet
64, the second ratchet 65 and limit plate 66.The lower section of slip hook 5 is arranged in two adjustment seats 61, is provided in each adjustment seat 61
Bearing 611 is adjusted, the left part and right part of flywheel shaft 62 are separately positioned on two adjusting bearings 611.The both ends of flywheel shaft 62 point
It is not provided with the first pinch roller 621 and the second pinch roller 622, Flywheel disc 63 is arranged on flywheel shaft 62 and Flywheel disc 63 is located at two tune
Between bearings 611, one end of Flywheel disc 63 is fixedly connected with one end of the first ratchet 64, the other end of Flywheel disc 63 and second
One end of ratchet 65 is fixedly connected.First ratchet 64 and the arc-shaped shape of the second ratchet 65 and the first ratchet 64 and the second ratchet 65
On be provided with ratchet notches 651.It can preferably cooperate with slip hook, play better braking effect.First ratchet 64 is fixed
Width of the width at end less than 64 abutting end of the first ratchet.The width of second ratchet, 65 fixing end is less than 65 abutting end of the second ratchet
Width.It can be realized centrifugal effect, increase the ability of braking, and preferably matched with slip hook.Limit plate 66 is arranged
On flywheel shaft 62 and arranged in a crossed manner with Flywheel disc 63, limit plate 66 and Flywheel disc 63 are in racetrack shape, and limit plate 66
Length is greater than the length of Flywheel disc 63.The both ends of limit plate 66 are provided with limit matching hole 661, one end of limit plate 66 and the
The other end of one ratchet 64 is connected by the first bayonet fittings, and the other end of limit plate 66 and the other end of the second ratchet 65 pass through
The connection of second bayonet fittings.
It when work, is rotated by pinch roller 621, pinch roller can be made to drive flywheel shaft 62 to drive Flywheel disc 63 to rotate, flown
The rotation of wheel disc 63 drives, and the first ratchet 64 and the rotation of the second ratchet 65 pass through the ratchet notches 651 and slip hook in the first ratchet 64
5 bottom connection touching, so that 651 energy band of ratchet notches is moved, hook 5 rotates, to make the first safety device 2 and the second safety dress
It sets 201 and obtains unlocked state, make it possible to the first safety device 2 and the second safety device 201 for vertical transferring apparatus locking.
By the way that limit plate 66 and Flywheel disc 63 be arranged in a crossed manner and the width of 64 fixing end of the first ratchet is less than 64 abutting end of the first ratchet
Width.The width of second ratchet, 65 fixing end can be realized centrifugal effect less than the width of 65 abutting end of the second ratchet, limit
Plate 66 makes in rotation can be in the mobile adjusting of limit matching hole 661, to can preferably obtain centrifugation locking in rotary course
Effect, and locking speed can be adjusted by pinch roller 621, be conducive to preferably control decrease speed, so that vertically
Safety is guaranteed for transport device.
In conclusion the safety tongs locking speed can be adjusted, convenient for control decrease speed, better locking can be played
Effect.By the centrifugal movement of flywheel mechanism 6, flywheel mechanism 6 is enable preferably to match with slip hook, improves safety.It is logical
Crossing gradual locking prevents, and can be improved the stability of locking.
Claims (9)
1. a kind of elevator safety tongs, which is characterized in that including fixed plate (1), the first safety device (2), the second safety
Device (201), two hook axis fixing seats (3), hook axis (4), slip hook (5) and flywheel mechanism (6)；The first safety dress
It sets (2) and the second safety device (201) is separately positioned on the two sides of fixed plate (1)；First safety device (2) includes safety tongs bottom
Seat (21), locating piece (22), connecting block (23), pin shaft (24), coordinating block (25), defelctor apron (26) and pull rod (27)；It is described
Safety tongs base (21) be fixed on fixed plate (1)；Be respectively arranged on safety tongs base (21) locating slot (211) and
Connecting groove (212), the locating piece (22) are arranged on the locating slot (211)；It is arranged on the connecting groove (212)
There are the first strip through-hole (213)；The connecting block (23) is arranged on connecting groove (212), is provided in the middle part of connecting block (23)
Pin shaft hole (231), the pin shaft (24) pass through pin shaft hole (231) and are arranged on the first strip through-hole (213)；Connecting block
(23) it is provided on mating groove (232), the coordinating block (25) is arranged on mating groove (232), the defelctor apron
(26) it is arranged on safety tongs base (21) and by connecting block (23) and coordinating block (25) limit in connecting groove (212)；Guiding
The second bar through hole (261) to match with the first strip through-hole (213) is provided on cover board (26)；The pin shaft (24)
Outer end is arranged on second bar through hole (261)；Bottom of pull rod (27) setting in connecting block (23)；First safety
The pull rod (27) of device (2) and the pull rod (27) of the second safety device (201) pass through connection cross bar (271) connection；Described two
A hook fixing seat (3) setting passes through the hook axis (4) in the lower section of connection cross bar (271), two hooks fixing seat (3)
Connection；Slip hook limit plate is provided on hook fixing seat (3), the slip hook (5) is hinged on hook axis (4)；Flywheel mechanism
(6) immediately below slip hook (5), flywheel mechanism (6) drives slip hook (5) rotation.
2. a kind of elevator safety tongs according to claim 1, which is characterized in that the first safety device (2) and
Two safety devices (201) are symmetrical arranged, and the first safety device (2) is identical with the second safety device (201) structure.
3. a kind of elevator safety tongs according to claim 1, which is characterized in that flywheel mechanism (6) includes two
Adjustment seat (61), flywheel shaft (62), Flywheel disc (63), the first ratchet (64), the second ratchet (65) and limit plate (66)；Described
Two adjustment seat (61) settings are provided on the lower section of slip hook (5), each adjustment seat (61) and adjust bearing (611), described
Flywheel shaft (62) left part and right part be separately positioned on two adjusting bearings (611)；The both ends of flywheel shaft (62) are set respectively
It is equipped with the first pinch roller (621) and the second pinch roller (622), the Flywheel disc (63) is arranged on flywheel shaft (62) and Flywheel disc
(63) it is located between two adjusting bearings (611), one end of Flywheel disc (63) is fixedly connected with one end of the first ratchet (64), is flown
The other end of wheel disc (63) is fixedly connected with one end of the second ratchet (65)；The limit plate (66) is arranged in flywheel shaft (62)
Upper and arranged in a crossed manner with Flywheel disc (63), the both ends of limit plate (66) are provided with limit matching hole (661), limit plate (66)
One end is connect with the other end of the first ratchet (64) by the first bayonet fittings, the other end and the second ratchet of limit plate (66)
(65) the other end is connected by the second bayonet fittings.
4. a kind of elevator safety tongs according to claim 1, which is characterized in that the fixed plate (1) is U-shaped
Shape, and two middle side parts of fixed plate (1) are connected by spring pull rod (101).
5. a kind of elevator safety tongs according to claim 3, which is characterized in that first ratchet (64) and
Second ratchet (65) section is arc-shaped, and is provided with ratchet notches on the first ratchet (64) and the second ratchet (65) outside
(651), slip hook (5) rotation is driven by the first ratchet (64) or the second ratchet (65).
6. a kind of elevator safety tongs according to claim 1, which is characterized in that the connecting groove (212) and
Connecting block (23) is in the shape of a right-angled ladder, first strip through-hole (213) and second bar through hole (261) respectively with it is described
The bevel edge of right angle ladder be arranged in parallel.
7. a kind of elevator safety tongs according to claim 1, which is characterized in that the slip hook (5) is U-shaped
Shape；And the hook of slip hook (5), towards the back lower place, slip hook (5) bottom is provided with slip hook recess (51).
8. a kind of elevator safety tongs according to claim 3, which is characterized in that first ratchet (64) is solid
Width of the width of fixed end less than the first ratchet (64) abutting end；The width of described the second ratchet (65) fixing end is less than second
The width of ratchet (65) abutting end.
9. a kind of elevator safety tongs according to claim 1, which is characterized in that the limit plate (66) and fly
Wheel disc (63) is in racetrack shape, and the length of limit plate (66) is greater than the length of Flywheel disc (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202823.5A CN109809273A (en) | 2019-03-18 | 2019-03-18 | A kind of elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202823.5A CN109809273A (en) | 2019-03-18 | 2019-03-18 | A kind of elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109809273A true CN109809273A (en) | 2019-05-28 |
Family
ID=66609300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202823.5A Pending CN109809273A (en) | 2019-03-18 | 2019-03-18 | A kind of elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109809273A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9212388D0 (en) * | 1991-06-13 | 1992-07-22 | Toshiba Kk | Elevator with a governor |
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| CN101041405A (en) * | 2006-03-20 | 2007-09-26 | 株式会社日立制作所 | Elevator safety device |
| CN203486697U (en) * | 2013-10-17 | 2014-03-19 | 宁波赛富特电梯部件有限公司 | Instantaneous type safety tongs |
| CN108275537A (en) * | 2018-03-22 | 2018-07-13 | 日立电梯（中国）有限公司 | A kind of mechanical elevator speed-limiting safety jaw |
-
2019
- 2019-03-18 CN CN201910202823.5A patent/CN109809273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9212388D0 (en) * | 1991-06-13 | 1992-07-22 | Toshiba Kk | Elevator with a governor |
| US5377786A (en) * | 1991-06-13 | 1995-01-03 | Kabushiki Kaisha Toshiba | Elevator with a governor |
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| CN101041405A (en) * | 2006-03-20 | 2007-09-26 | 株式会社日立制作所 | Elevator safety device |
| CN203486697U (en) * | 2013-10-17 | 2014-03-19 | 宁波赛富特电梯部件有限公司 | Instantaneous type safety tongs |
| CN108275537A (en) * | 2018-03-22 | 2018-07-13 | 日立电梯（中国）有限公司 | A kind of mechanical elevator speed-limiting safety jaw |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |
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| WD01 | Invention patent application deemed withdrawn after publication |