CN2685301Y - Elevator safety tongs - Google Patents
Elevator safety tongs Download PDFInfo
- Publication number
- CN2685301Y CN2685301Y CN 200420020992 CN200420020992U CN2685301Y CN 2685301 Y CN2685301 Y CN 2685301Y CN 200420020992 CN200420020992 CN 200420020992 CN 200420020992 U CN200420020992 U CN 200420020992U CN 2685301 Y CN2685301 Y CN 2685301Y
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- CN
- China
- Prior art keywords
- elevator
- guide way
- voussoir
- wedge block
- guide
- 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.)
- Expired - Fee Related
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model provides an elevator safety tong which can brake the elevator and play a protecting function when the elevator is overspeed, comprising a tong body, a spring, a fixed wedge block, a movable wedge block, a rolling element, a guiding slide block, a cover plate and a regulating bolt. The tong body is provided with a semi-closed cavity; the middle part of the tong body is provided with a notch. A guide way of the elevator penetrates through the notch. The tong body on one side of the guide way is provided with the fixed wedge block which can slide on the tong body and is provided with an elastic body; the elastic body comprises at least three groups of disk type springs. The tong body on the other side of the guide way is fixedly provided with the guiding slide block. The movable wedge block which is small in top and big in bottom is arranged between the guiding slide block and the guide way; the cover plate which is used for guiding the movable wedge block is fixed on the guiding slide block or the tong body. When the elevator goes downwardly at overspeed, the movable wedge block is driven by an overspeed governor and a lifting mechanism; the movable wedge block goes upwardly and wedges into the wedge space between the guiding slide block and the guide way of the elevator. The guide way is extruded by the movable wedge block and the fixed wedge block is made to slide; the springs groups is compressed to create a rebound force to hold the guide way. The movable and the fixed wedge blocks hold the guide way together in order to make the elevator stop going downwardly and play the protecting function.
Description
Technical field
The utility model relates to a kind of elevator safety tongs, and the elevator safety gear of brake protection is arranged when relating in particular to a kind of elevator overspeed.
Background technology
At present, elevator generally comprises pincers body, spring, decides voussoir, moves voussoir, rolling body, slider guide, cover plate, adjusting bolt etc. with safety tongs.The pincers body is a cavity that wall is arranged, and there is a breach middle part on the top wall, to hold cage guide (cage guide does not belong to the parts of safety tongs).Two groups of disk spring groups are housed on the pincers body of guide rail one side, the free end of spring assembly with decide voussoir and be connected.The end face up and down of deciding voussoir matches with a chute of pincers body, decides voussoir horizontal sliding therein.On the pincers body of guide rail opposite side slider guide is housed, constitutes up-small and down-big wedge shape space between slider guide and the cage guide.Moving voussoir has up-small and down-big wedge-like profile, and its top is equipped with and is regulated bolt in order to regulate the stroke of moving voussoir.The straight flange of moving voussoir simultaneously is a friction face.Opposite side has rolling body, and rolling body is made up of retainer and roller, and roller can be ball or roller, and the effect of rolling body is the power of reducing friction.There is a little spring to collude lower end, rolling body is pulled to below (slider guide afterbody) at rolling body.Under the off working state, guide rail and decide to leave the gap between voussoir, the moving voussoir.Cover plate is loaded on pincers body or the slider guide, in order to moving voussoir is led.The top of moving voussoir, or on the pincers body with cooresponding position, the top of moving voussoir, the adjusting bolt is housed, in order to the stroke of adjusting wedge.When the descending operation of elevator exceeds the speed limit; moving voussoir is subjected to velocity limiter and shift mechanism, and (velocity limiter and shift mechanism be not at the row of content of the present invention; this paper is not described) driving; upwards wedge the wedge shape space between slider guide and the cage guide, the jam-packed guide rail also makes and decides voussoir displacement, compression spring; produce the bounce of a clamping guide rail; move voussoir and decide the common clamping guide rail of voussoir, make elevator finally stop to move downward, play a protective role.
One of main performance index of safety tongs is its Clamping force to cage guide, and the principal element that influences Clamping force is a spring.Above-mentioned safety tongs is a kind of representative type universal safety pincers, limit by version and installation site, generally can only select for use the dish spring of special diameter and limited number to constitute butterfly spring group.And desire to seek out bigger Clamping force, used resourcefulness is to use other version instead at present, matches relatively large spring and changes the installation site.Will be referred to the corresponding elevator car structure of change for this reason, increased cost.
Summary of the invention
The purpose of this utility model provides a kind of elevator safety gear with bigger Clamping force.
Design of the present utility model is the dish spring formation butterfly spring group with existing diameter and same piece number, increases Clamping force with the way that increases butterfly spring group.
Comprise pincers body, spring, decide voussoir, move voussoir, rolling body, slider guide, cover plate and adjusting bolt.This pincers body has a semi-enclosed cavity, there is a breach middle part, cage guide passes therethrough, be slidingly equipped with on the pincers body of guide rail one side and be with the elastomeric voussoir of deciding, be installed with slider guide on the pincers body of guide rail opposite side, between this slider guide and guide rail, be provided with the moving voussoir of up-small and down-big wedge shape, be installed with the cover plate that moving voussoir is led on the slider guide or on the pincers body.This elastic body is at least three group disk spring groups.
Described dish spring group is vertically arranged from top to down.
Be provided with rolling body between described moving voussoir and the slider guide.
The utility model does not increase the Width size of safety tongs, does not change safety tongs existing design form and installation site, does not influence existing mounting means.Use this way to increase the short transverse size of safety tongs a little, but this direction size increase can be existing mounting means and the installation site is accepted.So the present invention has enlarged the parameter area of safety tongs, increased the range of use of safety tongs, compare the parameter area that enlarges safety tongs with other way, this programme safety tongs has kept version, mounting means and the installation site of existing safety tongs, and directly manufacturing cost is lower simultaneously.And the mounting means and the installation site that keep existing safety tongs just do not relate to any change to elevator other parts (as car), have reduced indirect cost again.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model;
The specific embodiment
As shown in Figure 1, elevator safety gear of the present utility model comprise pincers body 1, spring assembly 2, decide voussoir 3, moving voussoir 4, rolling body 5, slider guide 6, cover plate 7, adjusting bolt 8 etc.Pincers body 1 is a cavity that wall is arranged, and there is a breach middle part on the top wall, to hold cage guide 9.Have three holes 10 that are used for mounting spring of vertically arranging from top to down on one sidewall, this three hole is used to install three groups of dish springs 2.The spring opposite side is equipped with decides voussoir 3.The end face up and down of deciding voussoir 3 matches with a chute of pincers body, decides voussoir 3 horizontal sliding therein.The opposite side of deciding voussoir 3 is cage guide 9 (cage guide does not belong to the parts of safety tongs), and guide rail 9 opposite sides are voussoir 4, and moving voussoir 4 has up-small and down-big wedge-like profile, and the top of moving voussoir 4 is equipped with and is regulated bolt 8, in order to the stroke of adjusting wedge.The straight flange of moving voussoir 4 simultaneously is a friction face.The opposite side of moving voussoir 4 has rolling body 5, and this rolling body 1 contacts with the inclined-plane (sliding surface) of slider guide 6, has a little spring to collude in the lower end of rolling body 5, and rolling body 5 is pulled to the below.Slider guide 6 is contained on another sidewall of pincers body 1.Constitute up-small and down-big wedge shape space between slider guide 6 and the cage guide 9.Cover plate 7 is loaded on pincers body 1 or the slider guide 6, in order to moving voussoir 4 is led.The diameter of the butterfly spring that uses in each group spring 2 in the safety tongs of present embodiment and the sheet number average of dish spring are identical with existing safety tongs.When the descending operation of elevator exceeds the speed limit; moving voussoir 4 is subjected to velocity limiter and shift mechanism, and (velocity limiter and shift mechanism be not at the row of content of the present invention; this paper is not described) driving; upwards wedge the wedge shape space between slider guide 6 and the cage guide 9, jam-packed guide rail 9 also makes and decides voussoir 3 slippages, compression spring 2; produce the bounce of a clamping guide rail; move voussoir 4 and decide voussoir 3 common clamping guide rails 9, make elevator finally stop to move downward, play a protective role.
Claims (3)
1. an elevator safety tongs cooperates with cage guide, comprises a pincers body, certain voussoir, an elastic body, a slider guide, a moving voussoir and a cover plate,
This clamps wooden body a semi-enclosed cavity, there is a breach middle part, cage guide passes therethrough, be slidingly equipped with on the pincers body of guide rail one side and be with the elastomeric voussoir of deciding, be installed with slider guide on the pincers body of guide rail opposite side, be provided with the moving voussoir of up-small and down-big wedge shape between this slider guide and guide rail, be installed with the cover plate that moving voussoir is led on the slider guide or on the pincers body, it is characterized in that: described elastic body comprises at least three group dish springs.
2. elevator safety gear as claimed in claim 1 is characterized in that: described dish spring group is vertically arranged from top to down.
3. elevator safety gear as claimed in claim 1 or 2 is characterized in that: be provided with rolling body between described moving voussoir and the slider guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020992 CN2685301Y (en) | 2004-03-17 | 2004-03-17 | Elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020992 CN2685301Y (en) | 2004-03-17 | 2004-03-17 | Elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685301Y true CN2685301Y (en) | 2005-03-16 |
Family
ID=34669438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420020992 Expired - Fee Related CN2685301Y (en) | 2004-03-17 | 2004-03-17 | Elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685301Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311096B (en) * | 2007-05-23 | 2011-03-16 | 株式会社日立制作所 | Elevator emergency brake gear |
| CN101759076B (en) * | 2008-12-25 | 2012-06-27 | 上海三菱电梯有限公司 | Elevator buffer |
| CN102514997A (en) * | 2011-12-08 | 2012-06-27 | 安徽丰海起重设备制造有限公司 | Fall-protection safety device of lifter |
| ES2597810R1 (en) * | 2015-07-22 | 2017-06-07 | Talleres Agui, S.A. | ELEVATOR BUMPER DEVICE |
| US10214385B2 (en) | 2017-01-25 | 2019-02-26 | Otis Elevator Company | Elevator brake wedge |
| US11235949B2 (en) | 2017-07-21 | 2022-02-01 | Otis Elevator Company | Safety device, elevator safety system and elevator system |
| CN114955784A (en) * | 2021-02-26 | 2022-08-30 | 杭州沪宁电梯部件股份有限公司 | One-way safety tongs |
| CN117303156A (en) * | 2023-11-17 | 2023-12-29 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
-
2004
- 2004-03-17 CN CN 200420020992 patent/CN2685301Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311096B (en) * | 2007-05-23 | 2011-03-16 | 株式会社日立制作所 | Elevator emergency brake gear |
| CN101759076B (en) * | 2008-12-25 | 2012-06-27 | 上海三菱电梯有限公司 | Elevator buffer |
| CN102514997A (en) * | 2011-12-08 | 2012-06-27 | 安徽丰海起重设备制造有限公司 | Fall-protection safety device of lifter |
| ES2597810R1 (en) * | 2015-07-22 | 2017-06-07 | Talleres Agui, S.A. | ELEVATOR BUMPER DEVICE |
| US10214385B2 (en) | 2017-01-25 | 2019-02-26 | Otis Elevator Company | Elevator brake wedge |
| US11235949B2 (en) | 2017-07-21 | 2022-02-01 | Otis Elevator Company | Safety device, elevator safety system and elevator system |
| CN114955784A (en) * | 2021-02-26 | 2022-08-30 | 杭州沪宁电梯部件股份有限公司 | One-way safety tongs |
| CN114955784B (en) * | 2021-02-26 | 2024-05-07 | 杭州沪宁电梯部件股份有限公司 | Unidirectional safety tongs |
| CN117303156A (en) * | 2023-11-17 | 2023-12-29 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
| CN117303156B (en) * | 2023-11-17 | 2024-04-19 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
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Legal Events
| 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 |