CN1121975C - Bidirectional safety tongs for elevator - Google Patents
Bidirectional safety tongs for elevator Download PDFInfo
- Publication number
- CN1121975C CN1121975C CN 00105649 CN00105649A CN1121975C CN 1121975 C CN1121975 C CN 1121975C CN 00105649 CN00105649 CN 00105649 CN 00105649 A CN00105649 A CN 00105649A CN 1121975 C CN1121975 C CN 1121975C
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- voussoir
- braking
- brake equipment
- gusset
- pair
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Abstract
The present invention relates to a pair of bidirectional safety pincers for an elevator. An upper brake device and a lower brake device are respectively arranged at the upper part and the lower part of the framework of a pincer body, and respectively have a pair of fixed wedge blocks and a pair of brake wedge blocks; the upper brake wedge block and the lower brake wedge block are respectively hinged on a connecting angle plate of the upper wedge block and a connecting angle plate of the lower wedge block, and the two connecting angle plates can also slide on a linking pressure-lifting rod in a single direction; the linking pressure-lifting rod is sheathed with an upper spacing compression spring and a lower spacing compression spring which respectively limit the positions of the upper brake wedge blocks, the lower brake wedge blocks and a guide rail of an elevator car. The present invention only uses a set of linking pressure-lifting system and has the advantages of compact structure, convenient installation and test, favorable centering performance of the double wedge blocks and stable brake for overspeed up running or down running.
Description
The present invention relates to a kind of safety device that prevents the elevator overspeed upstream or downstream.
Usually the safety device of car has only descending automatic brake device, does not have protection device for over-speed ascending.Along with the rush to summit generation of accident of elevator all over the world, countries in the world begin to formulate the up-running over-speed protection safety standard.Existing elevator safety gear has following two classes: 1, have one to go up brake equipment on the car frame, a following brake equipment is arranged under the car frame, connect by the connecting rod about a car frame height.Shortcoming is a complex structure, Installation and Debugging inconvenience.2, be installed in brake equipment up and down under the car frame, it respectively has a sliding wedge up and down.At glancing impact, after single voussoir wedge advances between guide rail and the caliper, need brake equipment itself to float and carry out the centering processing, need pretreatment during installation.And the linkage of braking about needing two to overlap.
The purpose of this invention is to provide a kind of bidirectional safety tongs for elevator, make it to elevator when exceeding the speed limit upstream or downstream, can both carry out gradual braking, implement protection.
The technical scheme of bidirectional safety tongs for elevator of the present invention comprises that brake equipment, following brake equipment and lift system is characterized in that:
Lift system is unidirectional spacing and through the interlock pressure-raising bar of caliper framework with upper and lower brake equipment;
Last brake equipment and following brake equipment place the upper and lower of caliper framework respectively, last brake equipment and following brake equipment all are equipped be positioned at the car guide rail both sides a pair of and decide voussoir and a pair of braking voussoir, a pair of braking voussoir and a pair of voussoir of braking down gone up is hinged on voussoir respectively and is connected gusset and is connected on the gusset with lower wedge block, two connect gussets again can unidirectional slip on interlock pressure-raising bar, be with upper limit compression spring and lower limit compression spring on interlock pressure-raising bar, two springs limit the position of braking voussoir on two and braking voussoir and car guide rail for twice respectively.
Above-mentionedly go up going up the braking voussoir, decide voussoir, go up that voussoir connects the interior following braking voussoir of gusset and following brake equipment, decides voussoir in the brake equipment, lower wedge block to be connected gusset be identical shaped.
Above-mentioned all have an a pair of inside and outside cover board in upper and lower brake equipment.
Decide voussoir and be connected on the caliper framework avris for above-mentioned two pairs by two U-shaped leaf springs.
Above-mentioned interlock pressure-raising bar passes voussoir and connects middle plate in gusset, the caliper framework, lower wedge block connection gusset.
Above-mentioned a pair of braking voussoir and a pair of voussoir of braking down gone up is hinged on voussoir by straight pin and split washer dead axle respectively and is connected gusset and is connected on the gusset with lower wedge block.
Advantage of the present invention: the present invention meets the regulation of EN81-1, and upper and lower braking voussoir is installed in below the car frame underbeam in same caliper, only uses a cover interlock pressure-raising system, compact conformation, and installation testing is convenient.The folding wedge piece is better than single voussoir centering performance, when exceeding the speed limit upstream or downstream, all can brake steadily, vibrate little to elevator.
Below in conjunction with drawings and Examples structure of the present invention and principle of work are described in detail:
Fig. 1 is the installation site scheme drawing of the utility model embodiment;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the scheme drawing under the elevator normal operation;
Fig. 4 is the B-B cutaway view of Fig. 2;
Fig. 5 is the position of the up glancing impact of bidirectional safety tongs for elevator;
Fig. 6 is the position of the descending glancing impact of bidirectional safety tongs for elevator.
Bidirectional safety tongs for elevator comprises brake equipment, following brake equipment, unidirectional spacing and through the interlock pressure-raising bar 1 of caliper framework with the above two.
Last brake equipment and following brake equipment place the upper and lower of caliper 11 frameworks respectively, last brake equipment and following brake equipment all are equipped be positioned at car guide rail 2 both sides a pair of and decide voussoir 25 and a pair of braking voussoir, a pair of braking voussoir 13 and a pair of voussoir 17 of braking down gone up is hinged on voussoir respectively and is connected gusset 19 and is connected on the gusset 18 with lower wedge block, two connect gussets again can unidirectional slip on interlock pressure-raising bar 1, on interlock pressure-raising bar 1, be with upper limit compression spring 21 and lower limit compression spring 20, two springs and limit the position of braking voussoir 13 on two and braking voussoir 17 and car guide rail 2 for twice respectively.
It is identical shaped that going up braking voussoir 13, decide voussoir, go up that voussoir connects the interior following braking voussoir 17 of gusset 19 and following brake equipment, decides voussoir in the last brake equipment, lower wedge block are connected gusset 18.A pair of inside and outside cover board 15 is all arranged in upper and lower brake equipment.Deciding voussoir for two pairs is connected on the caliper framework avris by two U-shaped leaf springs 14,16.Interlock pressure-raising bar 1 passes voussoir and connects middle plate in gusset 19, the caliper framework, lower wedge block connection gusset 18.A pair of braking voussoir 13 and a pair of voussoir 17 of braking down gone up is hinged on voussoir by straight pin 24 and split washer 12 dead axles respectively and is connected gusset 19 and is connected on the gusset 18 with lower wedge block.
Fig. 1,2 is depicted as bidirectional safety tongs and the setting of interlock pressure-raising bar 1 on lift car.In elevator hoistways, lift car is made perpendicular movement along car guide rail 2, flip flop equipment 3 is hinged with the interlock pressure-raising bar 1 usefulness pin 6 that is installed on the car car frame underbeam 5 by a closed loop steel rope mechanism 4, interlock pressure-raising bar 1 uses left side pin 7 hinged with left side bidirectional safety tongs 8, use right pin 9 hinged with right side bidirectional safety tongs 10, the bidirectional safety tongs of both sides is realized the interlock of brake equipment up and down by interlock pressure-raising bar 1.
Figure 3 shows that the bidirectional safety tongs under the elevator normal operation.Its major part have on the interlock pressure-raising bar, braking U-shaped leaf spring 14, once brake U-shaped leaf spring 16, a pair of go up braking voussoir 13, a pair of voussoir of braking down 17, two pairs decide voussoir 25,, the four pairs of inside and outside cover boards 15, a safety tongs caliper 11, a upper limit compression spring 21, a lower limit compression spring 20, one go up voussoir and connect a gusset 19 and a lower wedge block connection gusset 18 etc.Car guide rail is passed from a pair of braking voussoir 13 and a pair of voussoir 17 of braking down.
Fig. 4 can illustrate the connection and the unidirectional of interlock pressure-raising bar of braking each two voussoir up and down to fix.The predetermincd tension of upper limit compression spring overcomes to go up brakes voussoir 13 in normal operating gravity of elevator and downward acceleration force, is undertaken spacing by a pair of cover plate 15.The predetermincd tension of same lower limit compression spring overcomes down braking voussoir 17 in the normal operating acceleration force that makes progress of elevator, and is spacing by a pair of cover plate 15.The a pair of braking voussoir 13 of going up is because of when braking voussoir wedge advances, voussoir has cross travel, connect so connect gusset 19 by a last voussoir that has two slotted holes, last voussoir connects gusset 19 and is connected and axial location with the folding wedge piece with split washer 12 by straight pin 24; Same braking voussoir 17 down also connects gusset 18 by a voussoir that has two slotted holes and connects.Interlock pressure-raising bar 1 passes that voussoir connects plate in gusset 19, the caliper, lower wedge block connects gusset 18, passes two elastic opening pins 23 on interlock pressure-raising bar, and one is connected with last voussoir above the gusset 19 and contacts, and it two is connected gusset 18 with lower wedge block and contacts.When interlock pressure-raising bar when lifting, drive connection gusset 18 down by elastic opening pin 23, drive and brake upwards slip brake guide rail 2 of voussoir 17 down, because it is unidirectional spacing with interlock pressure-raising bar that lower wedge block connects gusset 19, so when the action of last braking voussoir, lower wedge block connects gusset 19 and braking voussoir 17 is all and do not stress down.With when interlock pressure-raising bar during, drive by elastic opening pin 23 and to go up voussoir and connect gusset 19 and go up and brake voussoir 13 also all and do not stress at pressurized.No matter braking or down braking on the bidirectional safety tongs like this, braking voussoir that can the non-braking direction of shadow.
Fig. 5 is the position of the up glancing impact of bidirectional safety tongs for elevator.In the middle of car guide rail 2 was squeezed in by a pair of upward braking voussoir 13, guide rail was as intermediate, and the braking voussoir laterally presses deciding voussoir, and extruding simultaneously is braking U-shaped leaf spring 14 upward, and the braking voussoir is blocked by the middle plate of caliper.In this state, bidirectional safety tongs produces needed braking force.By at the insertion bearing cap shim 22 of deciding voussoir 25 and U-shaped spring, can adjust the braking force of safety tongs, adapt to different guide rail width, different elevator load.
Figure 6 shows that the position of the descending glancing impact of bidirectional safety tongs for elevator.With regard to the motion of safety tongs braking voussoir, except under brake voussoir 17 upwards wedge advance car guide rail is squeezed in the middle of, following braking U-shaped leaf spring 16 produces under the safety tongss to be braked outside the needed power, its situation is the same with last glancing impact.
Claims (6)
1, a kind of bidirectional safety tongs for elevator comprises that brake equipment, following brake equipment and lift system is characterized in that:
Lift system is unidirectional spacing and through the interlock pressure-raising bar of caliper framework with upper and lower brake equipment;
Last brake equipment and following brake equipment place the upper and lower of caliper framework respectively, last brake equipment and following brake equipment all are equipped be positioned at the car guide rail both sides a pair of and decide voussoir and a pair of braking voussoir, braking voussoir on the last brake equipment is last braking voussoir, braking voussoir on the following brake equipment is for braking voussoir down, described go up the braking voussoir and brake voussoir down be hinged on voussoir respectively and be connected gusset and be connected on the gusset with lower wedge block, two connect gussets again can unidirectional slip on interlock pressure-raising bar, be with upper limit compression spring and lower limit compression spring on interlock pressure-raising bar, two springs limit the position of braking voussoir on two and braking voussoir and car guide rail for twice respectively.
2, bidirectional safety tongs for elevator according to claim 1 is characterized in that: describedly go up going up the braking voussoir, decide voussoir, go up that voussoir connects the interior following braking voussoir of gusset and following brake equipment, decides voussoir in the brake equipment, lower wedge block to be connected gusset be identical shaped.
3, bidirectional safety tongs for elevator according to claim 1 is characterized in that: described all have an a pair of inside and outside cover board in upper and lower brake equipment.
4, bidirectional safety tongs for elevator according to claim 1 is characterized in that: decide voussoir and be connected on the caliper framework avris by two U-shaped leaf springs for described two pairs.
5, bidirectional safety tongs for elevator according to claim 1 is characterized in that: described interlock pressure-raising bar passes voussoir and connects middle plate in gusset, the caliper framework, lower wedge block connection gusset.
6, bidirectional safety tongs for elevator according to claim 1 is characterized in that: described a pair of braking voussoir and a pair of voussoir of braking down gone up is hinged on voussoir by straight pin and split washer dead axle respectively and is connected gusset and is connected on the gusset with lower wedge block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00105649 CN1121975C (en) | 2000-04-14 | 2000-04-14 | Bidirectional safety tongs for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00105649 CN1121975C (en) | 2000-04-14 | 2000-04-14 | Bidirectional safety tongs for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1319551A CN1319551A (en) | 2001-10-31 |
| CN1121975C true CN1121975C (en) | 2003-09-24 |
Family
ID=4577851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00105649 Expired - Fee Related CN1121975C (en) | 2000-04-14 | 2000-04-14 | Bidirectional safety tongs for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121975C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006287A1 (en) * | 2009-07-14 | 2011-01-20 | 上海德圣米高电梯有限公司 | Connection devece of safety gear for a large loading elevator |
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| CN101481066B (en) * | 2008-12-18 | 2011-03-16 | 日立电梯（中国）有限公司 | Mechanical braking device and method for abnormal operation of elevator |
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| CN102431863A (en) * | 2011-11-28 | 2012-05-02 | 昆山京都电梯有限公司 | Linkage structure for safety gears |
| CN104364179B (en) * | 2012-06-13 | 2016-07-13 | 株式会社日立制作所 | The emergency braking apparatus of elevator |
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| CN105329739A (en) * | 2015-12-01 | 2016-02-17 | 佛山市欧汇电梯配件有限公司 | Progressive safety tongs |
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| CN105905740B (en) * | 2016-06-25 | 2018-06-05 | 潘国强 | A kind of elevator safety gear |
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| CN108100805A (en) * | 2017-10-31 | 2018-06-01 | 天津乐驰电梯配件有限公司 | A kind of safety tongs based on elevator bi-directional braking |
| CN107963531B (en) * | 2017-11-28 | 2020-05-19 | 广东精创机械制造有限公司 | Elevator safety tongs reliable in clamping |
| CN110027961A (en) * | 2019-04-15 | 2019-07-19 | 中山职业技术学院 | A kind of bidirectional safety tongs for elevator |
| KR20220074900A (en) * | 2019-10-07 | 2022-06-03 | 다이나텍, 다이나믹스 앤드 테크놀러지, 에스. 엘. | Electromechanical actuation by flexible transmission for actuation of elevator safety devices |
| CN111977488B (en) * | 2020-09-09 | 2021-10-26 | 山东劳动职业技术学院（山东劳动技师学院） | Bidirectional safety tongs for elevator |
| CN112279034B (en) * | 2020-10-23 | 2021-12-17 | 晋江华菱电梯有限公司 | Elevator safety tongs |
| CN113772518B (en) * | 2021-09-26 | 2023-04-25 | 杭州天奥电梯有限公司 | Elevator car frame |
| CN115258875A (en) * | 2022-07-25 | 2022-11-01 | 苏州德奥电梯有限公司 | Elevator safety gear and using method |
-
2000
- 2000-04-14 CN CN 00105649 patent/CN1121975C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006287A1 (en) * | 2009-07-14 | 2011-01-20 | 上海德圣米高电梯有限公司 | Connection devece of safety gear for a large loading elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1319551A (en) | 2001-10-31 |
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| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
| 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 |