CN107512643A - Novel progressive bidirectional safety tongs - Google Patents
Novel progressive bidirectional safety tongs Download PDFInfo
- Publication number
- CN107512643A CN107512643A CN201710722700.5A CN201710722700A CN107512643A CN 107512643 A CN107512643 A CN 107512643A CN 201710722700 A CN201710722700 A CN 201710722700A CN 107512643 A CN107512643 A CN 107512643A
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- CN
- China
- Prior art keywords
- voussoir
- guide pad
- clamp system
- shaped spring
- clamp
- 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.)
- Pending
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 15
- 230000000750 progressive effect Effects 0.000 title claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention relates to a kind of elevator to run overspeed protection safety device, especially a kind of novel progressive bidirectional safety tongs.The first guide pad and the second guide pad both sides in the descending clamp system and up clamp system of the safety tongs are provided with a horizontally disposed U-shaped spring, first guide pad and the second guide pad are individually fixed in the inner side of the openend of U-shaped spring, and the crooked position of U-shaped spring is in descending clamp system and up clamp system rear.The guide pad that the U-shaped spring connection that the present invention is set by same level is oppositely arranged, U-shaped spring applies elastic force by free end to guide pad, gap between guide pad and clamp block inwall is installed by the larger U-shaped spring of thickness enough, greatly improve the elastic force of spring, the needs safe to use of other elevators increased suitable for Cargo Lift and load-carrying, simultaneously, clamp system application clamping force by a U-shaped spring simultaneously to both sides can make the pinching action more equalization stable of both sides, improve the stability used.
Description
Technical field
The present invention relates to a kind of elevator to run overspeed protection safety device, especially a kind of novel progressive bidirectional safe
Pincers.
Background technology
Elevator safety gear is a kind of triggered when elevator runs and exceeded the speed limit by wire rope pulling and gripping elevator runs guide rail
Safety guard, to prevent elevator overspeed run caused by security incident occur, such as feelings such as fall, rush to summit of elevator
Condition, in order to timely prevent the above situation, safety tongs, the just situation in elevator overspeed operation are mounted on existing elevator
Under, the guide rail of the lasting gripping elevator operation of safety tongs, make elevator out of service, reach the purpose for avoiding accident.
According to the difference of the mounting structure of elevator, existing elevator safety gear also has different structures, such as according to right
The difference of cage guide clamping mode, it can be divided into and apply the unilateral safety tongs of unilateral clamping force to cage guide and in both sides
Apply the bilateral place of safety of clamping force to cage guide simultaneously；According to the difference in the direction run to elevator overspeed, list can be divided into
To safety tongs and bidirectional safety tongs, the general structure such as Patent No. 200420051303.8 of existing two-way bilateral safety tongs
For shown in the technical scheme described in the patent document of " elevator two-way speed limiting safety tongs "：" set on the top of clamp block descending super
Velocity control device, the bottom of clamp block set up overspeed control device, and overspeed descending control device, the bottom of clamp block set up
Overspeed control device includes a pair of voussoirs respectively, and voussoir both sides are provided with guide plate, and spring is provided between pressing plate and clamp block ", wherein,
Guide plate is connected with clamp block side wall by disc spring, and the effect of disc spring is mainly relatively close or remote in voussoir lifting process
When, apply the support force of a sidepiece to voussoir, make voussoir more uniform and stable to the clamping force of guide rail, but due to guide plate two
The distances of lateral extent clamp block inside sidewalls is general shorter, and the space at this is also smaller, so in order to provide enough clamping forces, one
As need to be divided into multiple disc springs as shown in the product, this mode further reduce spring select when specification, to bullet
The elastic force of spring has larger limitation, so the clamping force being applied on voussoir also reduces accordingly, so such bidirectional safety tongs
Structure is only applicable in general man lift, for the more elevator of Cargo Lift or carrying number, it is impossible to it is good to change offer
Well stable clamping force, tends not to clamp in time when accident occurs, potential safety hazard be present.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provide it is a kind of suitable for the larger elevator of load-carrying, can provide it is larger
The novel progressive bidirectional safety tongs of security when clamping force, raising accident occur.
The bidirectional safety tongs include a clamp block, and the upper and lower part in clamp block is respectively equipped with descending clamp system and up folder
Tight mechanism, descending clamp system and up clamp system include the first voussoir and the second voussoir and the difference being oppositely arranged respectively
Located at the first voussoir and the first guide pad and the second guide pad of the second voussoir sidepiece；Clamp block center is provided with vertically through clamp block
Lifting rod, lifting rod be connected with the first voussoir for being used to connecting descending clamp system positioned at the first voussoir and the second voussoir rear and
The top board of second voussoir and the first voussoir for being used to connect up clamp system positioned at the first voussoir and the second voussoir rear
With the lower platen of the second voussoir；Its improvement is：The first guide pad in described descending clamp system and up clamp system
One horizontally disposed U-shaped spring is installed with the second guide pad both sides, the first guide pad and the second guide pad are individually fixed in U-shaped
The inner side of the openend of spring, the crooked position of U-shaped spring is in descending clamp system and up clamp system rear.
Preferably, the first described guide pad and the second guide pad include what is be connected with the U-shaped spring of the side respectively
Trapezoidal block, the front and back of trapezoidal block are respectively fixed with a cover plate, the side in the middle part of clamp block are corresponded on the cover plate
It is provided with the flanging that bends inwards at edge, the flanging on the cover plate of front and back is relative to form a limition orientation structure, described
The limition orientation groove being engaged with the limition orientation structure of the side is respectively equipped with first voussoir and the second voussoir.
Preferably, the position that U-shaped spring side is corresponded in clamp block side wall is provided with through hole, and one end is provided with described through hole
The screw rod of trapezoidal block is fixed through U-shaped spring, the other end of screw rod stretches out in outside clamp block side wall and is provided with nut.
Preferably, the dividing plate for being used for separating top and bottom is provided between the upper and lower part in described clamp block, it is described
Dividing plate extend horizontally on trapezoidal block in the drop shadow spread at the place of end face corresponding with dividing plate.
Preferably, the position that each voussoir is corresponded on described top board and lower platen is provided with a waist round hole, described wedge
A screw rod is fixed with block, the back end activity of screw rod is installed in described waist round hole.
What the U-shaped spring connection that the novel progressive bidirectional safety tongs of the present invention are set by same level was oppositely arranged leads
To block, U-shaped spring applies elastic force by free end to guide pad, and thickness is installed in the gap between guide pad and clamp block inwall enough
Larger U-shaped spring, the elastic force of spring is greatly improved, while can further increase elastic force by improving width, so as to folder
Tight mechanism applies enough clamping forces, the needs safe to use of other elevators increased suitable for Cargo Lift and load-carrying, meanwhile, lead to
The pinching action more equalization stable of both sides can be made by crossing clamp system application clamping force of the U-shaped spring simultaneously to both sides,
Improve the stability used.
Brief description of the drawings
Fig. 1 is the positive structure schematic of the embodiment of the present invention；
Fig. 2 is a lateral cross section structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the cross section structure schematic diagram of the vertical direction of the embodiment of the present invention.
Embodiment
As shown in Figure 1-Figure 3, the novel progressive bidirectional safety tongs in embodiments of the invention include a clamp block 1, clamp block 1
Interior upper and lower part is respectively equipped with descending clamp system 2 and up clamp system 3, descending clamp system 2 and up clamping machine
Structure 3 includes the first voussoir 4 being oppositely arranged and the second voussoir 5 and is respectively arranged on the first voussoir 4 and the sidepiece of the second voussoir 5 respectively
The first guide pad 6 and the second guide pad 7；The center of clamp block 1 is provided with the lifting rod 8 vertically through clamp block 1, and lifting rod 8 is connected with
It is used to connect the first voussoir 4 of descending clamp system 2 and the upper pressure of the second voussoir 5 positioned at the first voussoir 4 and the rear of the second voussoir 5
Plate 9 and the first voussoir 4 and the second wedge for being used to connect up clamp system 3 positioned at the first voussoir 4 and the rear of the second voussoir 5
The lower platen 10 of block 5；The first guide pad 6 and the second guide pad 7 in described descending clamp system 2 and up clamp system 3
Both sides are provided with a horizontally disposed U-shaped spring 11, and the first guide pad 6 and the second guide pad 7 are individually fixed in U-shaped spring 11
The inner side of openend, the crooked position of U-shaped spring 11 is in descending clamp system 2 and the rear of up clamp system 3.
In use, safety tongs is installed on the underbeam of lift car, and lifting rod 8 is connected with shift mechanism.Work
When, in overspeed descending, lifting rod 8 is pulled down by shift mechanism, positioned at the first wedge of the descending clamp system 2 on clamp block top
4 and second voussoir of block, 5 upward and relative motion, while drive the first guide pad 6 connected respectively and the second guide pad 7 relative
Motion, U-shaped spring start inwardly to clamp, carried by the first guide pad 6 and the second guide pad 7 to the first voussoir 4 and the second voussoir 5
For clamping force, guide rail, stop elevator are locked；During up hypervelocity, lifting rod 8 receives above carrying for shift mechanism, positioned at the bottom of clamp block 1
Descending clamp system 2 the 5 upward and relative motion of the first voussoir 4 and the second voussoir, while drive connect respectively first
The relative motion of 6 and second guide pad of guide pad 7, U-shaped spring start inwardly to clamp, and pass through the first guide pad 6 and the second guide pad 7
Clamping force is provided to the first voussoir 4 and the second voussoir 5, locks guide rail, stop elevator.
Because in wedge block movement, the movement relation between the corresponding guide pad of voussoir is the movement relation slided,
In order that its relative position slided is more accurate controllable, operation is more accurate, and reduces the difficulty of component processing, the present embodiment
In, the first described guide pad 6 and the second guide pad 7 include the trapezoidal block 12 being connected with the U-shaped spring of the side respectively,
The front and back of trapezoidal block 12 is respectively fixed with a cover plate 13, and the side edge in the middle part of clamp block is corresponded on the cover plate 13
Provided with the flanging to bend inwards, flanging on the cover plate 13 of front and back is relative to form a limition orientation structure, and described the
The limition orientation groove 14 being engaged with the limition orientation structure of the side is respectively equipped with one voussoir 4 and the second voussoir 5.It is relative to slide
When, voussoir use is run along limition orientation groove 14 and limition orientation structure for path, for the equal limited location of operation around
Effect, make structure more stable accurate.
On the mounting structure of U-shaped spring, in the present embodiment, the position that the sidepiece of U-shaped spring 11 is corresponded in the side wall of clamp block 1 is set
There is through hole 14, the screw rod 16 that one end fixes trapezoidal block 12 through U-shaped spring 11 is installed in described through hole 15, screw rod 16
The other end stretches out in outside the side wall of clamp block 1 and is provided with nut 17.
The dividing plate for being used for separating top and bottom is provided with the present embodiment, between the upper and lower part in described clamp block
18, described dividing plate 18 extend horizontally on trapezoidal block 12 with the drop shadow spread at the place of 18 corresponding end face of dividing plate.Its
Median septum is used to separate descending clamp system 2 and up clamp system 3, by making dividing plate 18 extend horizontally on trapezoidal block 12
With 18 corresponding end face of dividing plate so that trapezoidal block 12 it is descending or it is up to a certain extent after, i.e., blocked, keep away by dividing plate 18
Exempt from it excessively to run and the regular event of remaining part is caused to interfere.
On the operating structure of voussoir, in the present embodiment, each voussoir is corresponded on described top board 9 and lower platen 10
Position is provided with a waist round hole 19, and a screw rod 20 is fixed with described voussoir, and the back end activity of screw rod 20 is installed on described waist
In circular hole 19.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, every utilization
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (5)
1. novel progressive bidirectional safety tongs, including a clamp block, the upper and lower part in clamp block is respectively equipped with descending clamp system
With up clamp system, descending clamp system and up clamp system include the first voussoir and the second voussoir being oppositely arranged respectively
And it is respectively arranged on the first guide pad and the second guide pad of the first voussoir and the second voussoir sidepiece；Clamp block center, which is provided with, vertically to be passed through
The lifting rod of logical clamp block, lifting rod is connected with is used to connecting the of descending clamp system positioned at the first voussoir and the second voussoir rear
The top board of one voussoir and the second voussoir and it is used to connect up clamp system positioned at the first voussoir and the second voussoir rear
The lower platen of first voussoir and the second voussoir；It is characterized in that：In described descending clamp system and up clamp system
One guide pad and the second guide pad both sides are provided with a horizontally disposed U-shaped spring, the first guide pad and the second guide pad difference
The inner side of the openend of U-shaped spring is fixed on, the crooked position of U-shaped spring is after descending clamp system and up clamp system
Side.
2. novel progressive bidirectional safety tongs as claimed in claim 1, it is characterised in that：The first described guide pad and second
Guide pad includes the trapezoidal block being connected with the U-shaped spring of the side respectively, and the front and back of trapezoidal block is fixed respectively
There is a cover plate, the side edge in the middle part of clamp block is corresponded on the cover plate and is provided with the flanging to bend inwards, the lid of front and back
Flanging on plate forms a limition orientation structure relatively, and the limit with the side is respectively equipped with described the first voussoir and the second voussoir
The limition orientation groove that position guide frame is engaged.
3. novel progressive bidirectional safety tongs as claimed in claim 1 or 2, it is characterised in that：U-shaped bullet is corresponded in clamp block side wall
The position of spring sidepiece is provided with through hole, and the screw rod that one end fixes trapezoidal block through U-shaped spring, screw rod are provided with described through hole
The other end stretch out in outside clamp block side wall and nut be installed.
4. novel progressive bidirectional safety tongs as claimed in claim 3, it is characterised in that：Top in described clamp block is with
The dividing plate for being used for separating top and bottom is provided between portion, described dividing plate extends horizontally to corresponding with dividing plate on trapezoidal block
In the drop shadow spread at the place of end face.
5. novel progressive bidirectional safety tongs as claimed in claim 4, it is characterised in that：On described top board and lower platen
The position of corresponding each voussoir is provided with a waist round hole, is fixed with a screw rod on described voussoir, the back end activity of screw rod is installed on
In described waist round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722700.5A CN107512643A (en) | 2017-08-21 | 2017-08-21 | Novel progressive bidirectional safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722700.5A CN107512643A (en) | 2017-08-21 | 2017-08-21 | Novel progressive bidirectional safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107512643A true CN107512643A (en) | 2017-12-26 |
Family
ID=60723502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710722700.5A Pending CN107512643A (en) | 2017-08-21 | 2017-08-21 | Novel progressive bidirectional safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107512643A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
| CN110626898A (en) * | 2018-06-22 | 2019-12-31 | 奥的斯电梯公司 | Elevator system |
| CN113401763A (en) * | 2021-07-23 | 2021-09-17 | 苏州东方富力电梯部件有限公司 | Elevator safety tongs capable of realizing bidirectional braking and having high stability |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319551A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional safety tongs for elevator |
| CN2571723Y (en) * | 2002-09-05 | 2003-09-10 | 河北东方机械厂 | Progressive safety pliers |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| CN203889830U (en) * | 2014-05-12 | 2014-10-22 | 赵智红 | Novel progressive-type safety gear for elevators |
| CN205855677U (en) * | 2016-07-22 | 2017-01-04 | 广东华辉电梯配件有限公司 | A kind of progressive safety gear |
| CN207293863U (en) * | 2017-08-21 | 2018-05-01 | 佛山市欧汇电梯配件有限公司 | Novel progressive bidirectional safety tongs |
-
2017
- 2017-08-21 CN CN201710722700.5A patent/CN107512643A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319551A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional safety tongs for elevator |
| CN2571723Y (en) * | 2002-09-05 | 2003-09-10 | 河北东方机械厂 | Progressive safety pliers |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| CN203889830U (en) * | 2014-05-12 | 2014-10-22 | 赵智红 | Novel progressive-type safety gear for elevators |
| CN205855677U (en) * | 2016-07-22 | 2017-01-04 | 广东华辉电梯配件有限公司 | A kind of progressive safety gear |
| CN207293863U (en) * | 2017-08-21 | 2018-05-01 | 佛山市欧汇电梯配件有限公司 | Novel progressive bidirectional safety tongs |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626898A (en) * | 2018-06-22 | 2019-12-31 | 奥的斯电梯公司 | Elevator system |
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
| CN113401763A (en) * | 2021-07-23 | 2021-09-17 | 苏州东方富力电梯部件有限公司 | Elevator safety tongs capable of realizing bidirectional braking and having high stability |
| CN113401763B (en) * | 2021-07-23 | 2022-12-09 | 苏州东方富力电梯部件有限公司 | Elevator safety tongs capable of realizing bidirectional braking and having high stability |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171226 |