CN101565145A - Novel progressive safety tongs - Google Patents
Novel progressive safety tongs Download PDFInfo
- Publication number
- CN101565145A CN101565145A CNA2009100387634A CN200910038763A CN101565145A CN 101565145 A CN101565145 A CN 101565145A CN A2009100387634 A CNA2009100387634 A CN A2009100387634A CN 200910038763 A CN200910038763 A CN 200910038763A CN 101565145 A CN101565145 A CN 101565145A
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- spring
- lever arms
- caliper
- safety tongs
- pushing mechanism
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Abstract
The invention discloses a pair of novel progressive safety tongs, which comprises a tongs body, wherein the inside of the tongs body is provided with a movable wedge; and a movable wedge pushing mechanism is arranged inside the tongs body under the movable wedge. The pushing mechanism comprises a fixed seat, two lever arms, a spring and an electromagnet, wherein the fixed seat can move up and down in the tongs body; the two lever arms are hinged on both sides of the fixed seat through a pin shaft respectively; a brake shoe is arranged on the inner surface of the front end of each lever arm, and a cushion block is arranged on the upper surface of the front end of the each lever arm; the spring is arranged between lever bodies of the two lever arms; the electromagnet is arranged on the rear end part of the two lever arms; and the switching of a circuit of the electromagnet is controlled by an elevator speed monitoring device. The invention adopts the pushing mechanism to drive the movable wedge of the progressive safety tongs to complete the elevator braking function by the structure, does not need to arrange a safety pulling device, simplifies the structure of a speed limiter, has the advantages of compact structure and convenient assembly, and is suitable to be arranged on various elevators.
Description
Technical field
The invention belongs to the elevator technology field, be specifically related to a kind of novel progressive safety tongs.
Background technology
At present, progressive safety gear and velocity limiter, steel rope and safe pulling apparatus are the necessary parts of forming the passenger elevator safety guard.When velocity limiter monitors lift car stall, will act on safe pulling apparatus by steel rope, make safe pulling apparatus lift power to one of the movable voussoir generation of progressive safety gear, make it to make the action of stop elevator car.Safe pulling apparatus generally is made up of spring and lifting rod, and is installed on sedan-chair top entablatrance or the sedan-chair bottom girder, and structure is comparatively complicated, and the reaction time is longer, takies than large space; And must rely on the machinery power that lifts just can make safety tongs produce action.If the pressure rope power of velocity limiter is not enough, perhaps the wire cable rupture of velocity limiter just is easy to occur accident.Also have, the rope sheave of indivedual velocity limiters is owing to certain folder rope power will be provided, and is therefore very high to the performance requriements of rope sheave, and relevant part must be installed, and causes productive costs higher.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art part; a kind of simple in structure, the novel progressive safety tongs that need not safe pulling apparatus also can in case of emergency realize the safety tongs action is provided, more can simplifies the velocity limiter structure of passenger elevator safety guard.
For achieving the above object, the present invention adopts following technical scheme:
Novel progressive safety tongs comprises caliper, and device has movable voussoir in the caliper; Be provided with movable voussoir top-pushing mechanism in the caliper of described movable voussoir below, described top-pushing mechanism comprises: a permanent seat can move up and down in caliper; Two lever arms are hinged on the both sides of permanent seat respectively by a bearing pin, the leading section medial surface device of each lever arm has brake rubber block, and the leading section upper side of each lever arm is provided with cushion block; One spring is arranged between the body of rod of two lever arms; With an electromagnet, be arranged on the rearward end of two lever arms, the connecting and disconnecting of the circuit of this electromagnet is controlled by the elevator speed monitoring device.When elevator normally moves, the elastic force that the electromagnetic force that electromagnet energising produces overcomes spring makes the rearward end of two lever arms draw close and the leading section of two lever arms is outwards rotated with respect to permanent seat, and the brake rubber block of lever arm leading section medial surface can not come in contact with cage guide.When elevator stall is descending; the speed that the elevator speed monitoring device monitors elevator surpasses permissible value; at once the circuit of tripping magnet; the leading section of two lever arms inwardly rotates with respect to permanent seat under the effect of the elastic-restoring force of spring; the brake rubber block of lever arm leading section inboard contacts and clamps cage guide with cage guide; under the effect of friction force; top-pushing mechanism moves up with respect to caliper; cushion block contact activity voussoir on the lever arm leading section upper side also produces enough jacking force movable voussoir is also contacted with cage guide; further descending along with elevator; movable voussoir is increasing to the gripping power of cage guide; final stop elevator, thus play the safety guard-safeguard effect.
Further, only move up and down this degree of freedom and limit lower position-arresting and the upper position-arresting that top-pushing mechanism moves up and down in caliper for limiting top-pushing mechanism, in the caliper of above-mentioned movable voussoir below at least one pilot bar is set vertically, this at least one pilot bar passes described permanent seat moves up and down permanent seat only along pilot bar, reach the pilot bar bottom and be provided with pedestal, permanent seat is fixed on the pedestal by a spring.
As preferably, the spring that is arranged between the two lever arm bodies of rod is compression spring or torsion spring.
As preferably, the spring between said fixing seat and pedestal is an extension spring.
As preferably, above-mentioned elevator speed monitoring device is a velocity limiter.
The present invention is by adopting said structure, and the movable voussoir that is promoted progressive safety gear by top-pushing mechanism goes to finish the elevator brake function, and safe pulling apparatus need not be set, simplified the structure of velocity limiter, have compact conformation, advantage easy for installation is applicable to be installed on the various elevators.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation after the present invention removes top-pushing mechanism;
Fig. 3 is the structural representation of top-pushing mechanism of the present invention;
Fig. 4 is the structural representation of top-pushing mechanism of the present invention when being in the electromagnet "on" position;
Fig. 5 is the structural representation of top-pushing mechanism of the present invention when being in the electromagnet off-position;
Fig. 6 is the structural representation of the present invention when being in the elevator normal operating condition;
Fig. 7 is the structural representation of the present invention when being in the elevator stall condition.
Among the figure:
The 1-caliper; The movable voussoir of 11-; 12-U type spring; The 13-ball; 14-makes guide block; The 15-pilot bar; The 16-pedestal; The 17-extension spring; The 2-top-pushing mechanism; The 21-permanent seat; The 22-lever arm; The 23-bearing pin; The 24-spring; The 25-electromagnet; The 26-brake rubber block; The 27-cushion block; The 3-cage guide.
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
The specific embodiment
As shown in Figure 1 to Figure 3, novel progressive safety tongs of the present invention has a caliper 1, and device has movable voussoir 11, U type spring 12, ball 13, system guide block 14 and top-pushing mechanism 2 in the caliper 1.Top-pushing mechanism 2 is arranged in the caliper of movable voussoir 11 belows, is made up of permanent seat 21, two lever arms 22, a spring 24 and an electromagnet 25, and the shank portion of two lever arms 22 is hinged on permanent seat 21 both sides by a bearing pin 23 respectively; Spring 24 is a compression spring, is arranged between the body of rod of two lever arms of permanent seat 21 back; Electromagnet 25 is arranged on the rearward end of two lever arms 22, and the connecting and disconnecting of the circuit of this electromagnet 25 is controlled by the velocity limiter of elevator; The leading section upper side that the leading section medial surface of two lever arms 22 is provided with brake rubber block 26 and two lever arms 22 is provided with cushion block 27.For guaranteeing that top-pushing mechanism 2 only moves up and down this degree of freedom and limit lower position-arresting and the upper position-arresting that top-pushing mechanism 2 moves up and down in caliper 1 in caliper 1, vertically be provided with a pilot bar 15 that passes permanent seat 21 in the caliper 1 of movable voussoir 11 belows, the bottom of pilot bar 15 is provided with pedestal 16, and permanent seat 21 is fixed on the pedestal 16 by an extension spring 17.
Principle of work of the present invention is as follows:
As Fig. 4 and shown in Figure 6, under the situation of the normal operation of elevator, electromagnet 25 energisings of top-pushing mechanism produce electromagnetic force, the spring force that this electromagnetic force overcomes compression spring 24 outwards rotates two lever arms 22 respectively with respect to permanent seat 21 around bearing pin 23, the rearward end of two lever arms 22 is drawn close and leading section opens, brake rubber block 26 on two lever arms, 22 leading sections separates with cage guide 3 and does not come in contact at this moment, and at this moment, permanent seat 21 is positioned at lower position-arresting under the effect of extension spring 17.
As Fig. 5 and shown in Figure 7; when elevator is in stall condition; when the speed that velocity limiter monitors elevator surpasses permissible value; velocity limiter disconnects the circuit of the electromagnet 25 of top-pushing mechanism at once; under the effect of the elastic-restoring force of compression spring 24; two lever arms 22 inwardly rotate with respect to permanent seat 21 around bearing pin 23 respectively; the rearward end of two lever arms 22 is opened and leading section is drawn close; brake rubber block 26 on the two lever arm leading sections contacts and clamps cage guide 3 with cage guide 3 at this moment; under the effect of friction force; top-pushing mechanism 2 is moved upward to upper position-arresting along pilot bar; cushion block 27 contact activity voussoirs 11 on the two lever arm leading section upper sides also produce enough jacking force movable voussoir 11 are also contacted with cage guide 3; further descending along with elevator; movable voussoir 11 is increasing to the gripping power of cage guide 3 under the effect of U type spring 12; final stop elevator, thus play the safety guard-safeguard effect.
The above is a better embodiment of the present invention only, and protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within protection domain of the present invention based on non-material change on the technical solution of the present invention.
Claims (5)
1, novel progressive safety tongs comprises caliper, and device has movable voussoir in the caliper, it is characterized in that, is provided with movable voussoir top-pushing mechanism in the caliper of described movable voussoir below, and described top-pushing mechanism comprises
One permanent seat can move up and down in caliper;
Two lever arms are hinged on the both sides of permanent seat respectively by a bearing pin, the leading section medial surface device of each lever arm has brake rubber block, and the leading section upper side of each lever arm is provided with cushion block;
One spring is arranged between the body of rod of two lever arms; With
One electromagnet is arranged on the rearward end of two lever arms, and the connecting and disconnecting of the circuit of this electromagnet is controlled by the elevator speed monitoring device.
2, novel progressive safety tongs according to claim 1, it is characterized in that, in the caliper of described movable voussoir below at least one pilot bar is set vertically, this at least one pilot bar passes described permanent seat moves up and down permanent seat only along pilot bar, reach the pilot bar bottom and be provided with pedestal, permanent seat is fixed on the pedestal by a spring.
3, novel progressive safety tongs according to claim 1 is characterized in that, described spring is compression spring or torsion spring.
4, novel progressive safety tongs according to claim 2 is characterized in that, described spring is an extension spring.
5, novel progressive safety tongs according to claim 1 is characterized in that, described elevator speed monitoring device is a velocity limiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100387634A CN101565145A (en) | 2009-04-20 | 2009-04-20 | Novel progressive safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100387634A CN101565145A (en) | 2009-04-20 | 2009-04-20 | Novel progressive safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101565145A true CN101565145A (en) | 2009-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100387634A Pending CN101565145A (en) | 2009-04-20 | 2009-04-20 | Novel progressive safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101565145A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431866A (en) * | 2011-10-20 | 2012-05-02 | 苏州通润驱动设备股份有限公司 | Safety braking device clamped on traction wheel of traction machine |
| CN102530675A (en) * | 2010-11-24 | 2012-07-04 | 株式会社日立制作所 | Elevator device |
| CN103086226A (en) * | 2013-01-28 | 2013-05-08 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| CN103896125A (en) * | 2012-12-25 | 2014-07-02 | 上海龙钰电梯配件有限公司 | Guiding device for elevator safety tongs |
| CN104477727A (en) * | 2014-12-08 | 2015-04-01 | 苏州莱茵电梯制造有限公司 | Safety clamp for curvilinearly-running elevator |
| WO2015058663A1 (en) * | 2013-10-22 | 2015-04-30 | 邹家春 | Elevator rail clamping apparatus |
| CN105060060A (en) * | 2015-08-12 | 2015-11-18 | 杭州沪宁电梯配件有限公司 | Brake device with integrated safety tongs and lifting mechanism |
| CN105883519A (en) * | 2016-06-22 | 2016-08-24 | 朗格尔电梯有限公司 | Method and system for managing elevator safety |
| CN106044605A (en) * | 2016-06-07 | 2016-10-26 | 苏州博量电梯科技有限公司 | Elevator braking device and elevator braking method |
| CN109019239A (en) * | 2017-06-12 | 2018-12-18 | 上海三菱电梯有限公司 | Brake controller of elevator |
| CN112088138A (en) * | 2018-05-14 | 2020-12-15 | 三菱电机株式会社 | Safety device for elevator and safety system for elevator |
| CN112110312A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs brake block trigger driving device |
| CN112110311A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs for elevator braking |
| CN112867687A (en) * | 2018-11-28 | 2021-05-28 | 株式会社日立制作所 | Emergency stop device and elevator |
| US11649139B2 (en) | 2018-08-03 | 2023-05-16 | Otis Elevator Company | Electronic safety actuator assembly for elevator system |
-
2009
- 2009-04-20 CN CNA2009100387634A patent/CN101565145A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530675A (en) * | 2010-11-24 | 2012-07-04 | 株式会社日立制作所 | Elevator device |
| CN102530675B (en) * | 2010-11-24 | 2015-05-20 | 株式会社日立制作所 | Elevator device |
| CN102431866A (en) * | 2011-10-20 | 2012-05-02 | 苏州通润驱动设备股份有限公司 | Safety braking device clamped on traction wheel of traction machine |
| CN103896125A (en) * | 2012-12-25 | 2014-07-02 | 上海龙钰电梯配件有限公司 | Guiding device for elevator safety tongs |
| CN103086226A (en) * | 2013-01-28 | 2013-05-08 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| CN103086226B (en) * | 2013-01-28 | 2015-05-27 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| WO2015058663A1 (en) * | 2013-10-22 | 2015-04-30 | 邹家春 | Elevator rail clamping apparatus |
| CN104477727A (en) * | 2014-12-08 | 2015-04-01 | 苏州莱茵电梯制造有限公司 | Safety clamp for curvilinearly-running elevator |
| CN104477727B (en) * | 2014-12-08 | 2016-07-06 | 苏州莱茵电梯股份有限公司 | The dynamic apparatus for lift of curve motion |
| CN105060060A (en) * | 2015-08-12 | 2015-11-18 | 杭州沪宁电梯配件有限公司 | Brake device with integrated safety tongs and lifting mechanism |
| CN106044605B (en) * | 2016-06-07 | 2018-11-06 | 苏州博量电梯科技有限公司 | Brake device for elevator and method |
| CN106044605A (en) * | 2016-06-07 | 2016-10-26 | 苏州博量电梯科技有限公司 | Elevator braking device and elevator braking method |
| CN105883519A (en) * | 2016-06-22 | 2016-08-24 | 朗格尔电梯有限公司 | Method and system for managing elevator safety |
| CN105883519B (en) * | 2016-06-22 | 2018-07-17 | 朗格尔电梯有限公司 | Elevator safety management method and its system |
| CN109019239A (en) * | 2017-06-12 | 2018-12-18 | 上海三菱电梯有限公司 | Brake controller of elevator |
| CN109019239B (en) * | 2017-06-12 | 2020-09-22 | 上海三菱电梯有限公司 | Elevator brake control device |
| CN112088138A (en) * | 2018-05-14 | 2020-12-15 | 三菱电机株式会社 | Safety device for elevator and safety system for elevator |
| CN112088138B (en) * | 2018-05-14 | 2022-02-25 | 三菱电机株式会社 | Safety device for elevator and safety system for elevator |
| US11649139B2 (en) | 2018-08-03 | 2023-05-16 | Otis Elevator Company | Electronic safety actuator assembly for elevator system |
| CN112867687A (en) * | 2018-11-28 | 2021-05-28 | 株式会社日立制作所 | Emergency stop device and elevator |
| CN112110312A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs brake block trigger driving device |
| CN112110311A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs for elevator braking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091028 |