CN105883529A - Self-balance progressive elevator safety tongs - Google Patents
Self-balance progressive elevator safety tongs Download PDFInfo
- Publication number
- CN105883529A CN105883529A CN201610455150.0A CN201610455150A CN105883529A CN 105883529 A CN105883529 A CN 105883529A CN 201610455150 A CN201610455150 A CN 201610455150A CN 105883529 A CN105883529 A CN 105883529A
- Authority
- CN
- China
- Prior art keywords
- wedge shape
- brake block
- guide rail
- self
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Abstract
The invention discloses self-balance progressive elevator safety tongs. The self-balance progressive elevator safety tongs comprise a machine frame (1), a groove (3) connected with a guide rail (2) is formed in the middle of the machine frame (1), an adjusting plate (5) is connected with one side of the machine frame (1) through an adjusting screw (4), the adjusting plate (5) is connected with a wedged guide block (7) through a spring (6), the wedged guide block (7) is connected with a wedged brake block (8), a lifting rope (9) is connected with the top of the wedged brake block (8), the machine frame (1) is further connected with an eccentric wheel (11) through a rotary shaft (10), and the eccentric wheel (11) and the wedged brake block (8) are located on the two sides of the guide rail (2) respectively. Brake force on the two sides of the guide rail can be balanced, deformation of the guide rail is prevented, and the safety tongs have the advantages of being good in brake effect, good in safety and good in brake stability.
Description
Technical field
The present invention relates to a kind of gradual elevator safety tong, a kind of self-balancing gradual
Elevator safety gear.
Background technology
Safety tongs is as a vital safety device in elevator, wide in elevator device
General application；Wherein, use more for gradual elevator safety tong.Gradual elevator safety tong
Being generally fixed on lift car, when needing elevator brake, shift mechanism is pulled by rope
Wedge shape brake block moves up along wedge shape guide pad, and wedge shape brake block is at the work of wedge shape guide pad
Gradually move to gripping elevator guide rails to cage guide with lower, thus elevator brake.But, existing
Some gradual elevator safety tong are when braking, uneven to the brake force of guide rail both sides, cause
Guide rail local deformation；And, when after guide rail local deformation, the braking of gradual elevator safety tong
Effect is undesirable, and safety is undesirable.Therefore, existing gradual elevator safety tong also exists
Guide rail both sides brake force is uneven, cause guide rail deformation, braking effect undesirable and safety not
Preferably problem.
Summary of the invention
It is an object of the invention to, it is provided that the gradual elevator safety tong of a kind of self-balancing.This
The bright brake force that can not only balance guide rail both sides, prevents guide rail from deforming, and also has braking effect
Good and that safety is good advantage.
Technical scheme: the gradual elevator safety tong of a kind of self-balancing, including frame,
Central rack is provided with the groove connecting guide rail；The side of frame is connected by regulation screw regulation
Plate, adjustable plate is connected by spring and has wedge shape guide pad；Connect on wedge shape guide pad and have wedge shape
Brake block, the top of wedge shape brake block connects rope；In described frame also by rotating shaft even
It is connected to eccentric, eccentric and wedge shape brake block and lays respectively at the both sides of guide rail.
In the gradual elevator safety tong of aforesaid a kind of self-balancing, the side of described wedge shape guide pad
Face is provided with tilted ribs, and the thickness of tilted ribs is gradually reduced from top to bottom；Described wedge shape brake block
The one side of upper opposite wedge guide pad is provided with chute, the position phase of the position of chute and tilted ribs
Corresponding.
In the gradual elevator safety tong of aforesaid a kind of self-balancing, described chute is obliquely installed,
The angle of inclination of chute is identical with the angle of inclination of wedge shape brake block side.
In the gradual elevator safety tong of aforesaid a kind of self-balancing, described eccentric is provided with many
Individual, the rotating shaft that multiple eccentrics connect is positioned on same vertical plane.
In the gradual elevator safety tong of aforesaid a kind of self-balancing, the eccentric throw of described eccentric
From the half equal to eccentric radius.
Compared with prior art, present invention improves over the knot of existing gradual elevator safety tong
Structure, can the braking to wedge shape brake block when wedge shape brake block clamping guide-rail by arranging spring
Power automatically adjusts；Can be rotated when wedge shape brake block clamping guide-rail by eccentric, adjust
Distance between joint rotating shaft and guide rail, and then the brake force that eccentric adjustment wheel is to guide rail side；From
And the brake force of guide rail both sides can be carried out autobalance, prevent guide rail from deforming.Meanwhile, when
When being braked the most deformed guide rail, eccentric rotates, it is possible to the guide rail after laminating deformation,
Improve braking effect and safety.Additionally, the present invention is also provided with tilted ribs and chute, it is possible to
When wedge shape brake block moves along wedge shape guide pad and to move up, it is gradually increased by tilted ribs
The wedge shape brake block clamping force to guide rail, it is achieved dual gradual clamping, mild elevator brake mistake
Journey, improves elevator brake stability.Therefore, the present invention can not only balance guide rail both sides
Brake force, prevents guide rail from deforming, and also has that good braking effect, safety be good and insensitivity
Good advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of wedge shape guide pad；
Fig. 3 is the structural representation of wedge shape brake block；
Fig. 4 is wedge shape guide pad and wedge shape brake block attachment structure schematic diagram.
Being labeled as in accompanying drawing: 1-frame, 2-guide rail, 3-groove, 4-regulates screw, 5-
Adjustable plate, 6-spring, 7-wedge shape guide pad, 8-wedge shape brake block, 9-rope, 10-turns
Axle, 11-eccentric, 12-tilted ribs, 13-chute.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings, but be not intended as right
The foundation that the present invention limits.
Embodiment.A kind of gradual elevator safety tong of self-balancing, constitute such as Fig. 1,2,3,
Shown in 4, including frame 1, in the middle part of frame 1, it is provided with the groove 3 connecting guide rail 2；Frame 1
Side connected by regulation screw 4 and have adjustable plate 5, adjustable plate 5 is connected by spring 6
There is wedge shape guide pad 7；Connect on wedge shape guide pad 7 and have wedge shape brake block 8, wedge shape brake block
The top of 8 connects rope 9；Connect also by rotating shaft 10 in described frame 1 and have eccentric
11, eccentric 11 and wedge shape brake block 8 lay respectively at the both sides of guide rail 2.
The side of described wedge shape guide pad 7 is provided with tilted ribs 12, the thickness of tilted ribs 12 from
On be down gradually reduced；On described wedge shape brake block 8, the one side of opposite wedge guide pad 7 sets
Having chute 13, the position of chute 13 is corresponding with the position of tilted ribs 12.Described chute 13
Being obliquely installed, the angle of inclination of chute 13 is identical with the angle of inclination of wedge shape brake block 8 side.
Described eccentric 11 is provided with multiple, and the rotating shaft 10 that multiple eccentrics 11 connect is positioned at same
On vertical plane；The eccentric distance of described eccentric 11 is equal to the half of eccentric 11 radius.
Operation principle: when needs elevator brake car, pull up lifting by shift mechanism
Rope 9, rope 9 drives wedge shape brake block 8 to move up along wedge shape guide pad 7；Wedge shape
Brake block 8 gradually clamps towards guide rail 2 under the effect of wedge shape guide pad 7, simultaneously by sliding
Groove 13 and the cooperation of tilted ribs 12, tilted ribs 12 makes wedge shape brake block 8 further towards leading
Rail 2 gradually clamps, it is achieved dual gradual braking.During braking, if wedge shape brake block 8 side
Relatively big to the brake force of guide rail 2, then eccentric 11 rotates, and reduces rotating shaft 10 and guide rail 2
Between distance, wedge shape guide pad 7 and wedge shape brake block 8 are pressed to guide rail 2, bullet by spring 6
Spring 6 unclamps, and elastic force reduces, thus reduces wedge shape brake block 8 side brake force to guide rail 2,
Make guide rail 2 both sides brake-force balance；If wedge shape brake block 8 side is to the brake force of guide rail 2 relatively
Little, then eccentric 11 rotates backward, and increases the distance between rotating shaft 10 and guide rail 2, guide rail
2 press to wedge shape brake block 8, wedge shape guide pad 7 and wedge shape brake block 8 compression spring 6, bullet
Power increases, thus increases wedge shape brake block 8 side brake force to guide rail 2, makes guide rail 2
Both sides brake-force balance.After guide rail 2 local deformation, the position system of deformation on guide rail 2
Time dynamic, eccentric 11 rotates, and makes the guide rail 2 of eccentric 11 and deformation fit, it is ensured that braking
Effect.
Claims (5)
1. the gradual elevator safety tong of a self-balancing, it is characterised in that: include frame (1),
Frame (1) middle part is provided with the groove (3) connecting guide rail (2)；The side of frame (1) leads to
Overregulate screw (4) connection and have adjustable plate (5), by spring (6) on adjustable plate (5)
Connect and have wedge shape guide pad (7)；The upper connection of wedge shape guide pad (7) has wedge shape brake block (8),
The top of wedge shape brake block (8) connects rope (9)；In described frame (1) also by
Rotating shaft (10) connects eccentric (11), eccentric (11) and wedge shape brake block (8) point
It is not positioned at the both sides of guide rail (2).
The gradual elevator safety tong of a kind of self-balancing the most according to claim 1, its
It is characterised by: the side of described wedge shape guide pad (7) is provided with tilted ribs (12), tilted ribs
(12) thickness is gradually reduced from top to bottom；The upper opposite wedge of described wedge shape brake block (8)
The one side of guide pad (7) is provided with chute (13), the position of chute (13) and tilted ribs (12)
Position corresponding.
The gradual elevator safety tong of a kind of self-balancing the most according to claim 2, its
It is characterised by: described chute (13) is obliquely installed, the angle of inclination of chute (13) and wedge shape
The angle of inclination of brake block (8) side is identical.
The gradual elevator safety tong of a kind of self-balancing the most according to claim 2, its
It is characterised by: described eccentric (11) is provided with multiple, the upper connection of multiple eccentrics (11)
Rotating shaft (10) is positioned on same vertical plane.
5. according to the gradual elevator of a kind of self-balancing described in claim 1,2,3 or 4
Safety tongs, it is characterised in that: the eccentric distance of described eccentric (11) is equal to eccentric (11)
The half of radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610455150.0A CN105883529B (en) | 2016-06-21 | 2016-06-21 | A kind of gradual elevator safety tong of self-balancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610455150.0A CN105883529B (en) | 2016-06-21 | 2016-06-21 | A kind of gradual elevator safety tong of self-balancing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105883529A true CN105883529A (en) | 2016-08-24 |
| CN105883529B CN105883529B (en) | 2018-07-03 |
Family
ID=56731009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610455150.0A Active CN105883529B (en) | 2016-06-21 | 2016-06-21 | A kind of gradual elevator safety tong of self-balancing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105883529B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083052A (en) * | 2017-10-31 | 2018-05-29 | 天津乐驰电梯配件有限公司 | A kind of elevator safety gear of high safety |
| CN109693987A (en) * | 2017-10-23 | 2019-04-30 | 上海三菱电梯有限公司 | Elevator bidirectional safe brake apparatus |
| US11639284B1 (en) * | 2021-12-08 | 2023-05-02 | George F. Becker | Wedge brake elevator safety system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860113B (en) * | 2021-08-30 | 2023-02-14 | 伟龙意程智能科技(江苏)有限公司 | Eccentric wheel type safety gear structure for elevator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0999168A3 (en) * | 1998-11-03 | 2001-03-07 | Gerhard Schlosser | Dual action braking device for elevators or rack serving equipment |
| CN2571723Y (en) * | 2002-09-05 | 2003-09-10 | 河北东方机械厂 | Progressive safety pliers |
| CN101575062A (en) * | 2009-05-18 | 2009-11-11 | 杭州沪宁电梯配件有限公司 | Asymmetric progressive safety gear |
| CN202464981U (en) * | 2012-02-24 | 2012-10-03 | 苏州莱茵电梯制造有限公司 | Safety tongs with cam structure |
| CN102874669A (en) * | 2011-07-14 | 2013-01-16 | 株式会社日立制作所 | Emergency braking device of elevator |
| KR20140013624A (en) * | 2012-07-25 | 2014-02-05 | (주)모든엘리베이터 | Gradually lifts the emergency stop device actuated type bidirectional |
| CN205668849U (en) * | 2016-06-21 | 2016-11-02 | 浙江屹立电梯有限公司 | The gradual elevator safety tong of self-balancing |
-
2016
- 2016-06-21 CN CN201610455150.0A patent/CN105883529B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0999168A3 (en) * | 1998-11-03 | 2001-03-07 | Gerhard Schlosser | Dual action braking device for elevators or rack serving equipment |
| CN2571723Y (en) * | 2002-09-05 | 2003-09-10 | 河北东方机械厂 | Progressive safety pliers |
| CN101575062A (en) * | 2009-05-18 | 2009-11-11 | 杭州沪宁电梯配件有限公司 | Asymmetric progressive safety gear |
| CN102874669A (en) * | 2011-07-14 | 2013-01-16 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN202464981U (en) * | 2012-02-24 | 2012-10-03 | 苏州莱茵电梯制造有限公司 | Safety tongs with cam structure |
| KR20140013624A (en) * | 2012-07-25 | 2014-02-05 | (주)모든엘리베이터 | Gradually lifts the emergency stop device actuated type bidirectional |
| CN205668849U (en) * | 2016-06-21 | 2016-11-02 | 浙江屹立电梯有限公司 | The gradual elevator safety tong of self-balancing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693987A (en) * | 2017-10-23 | 2019-04-30 | 上海三菱电梯有限公司 | Elevator bidirectional safe brake apparatus |
| CN108083052A (en) * | 2017-10-31 | 2018-05-29 | 天津乐驰电梯配件有限公司 | A kind of elevator safety gear of high safety |
| US11639284B1 (en) * | 2021-12-08 | 2023-05-02 | George F. Becker | Wedge brake elevator safety system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105883529B (en) | 2018-07-03 |
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