CN2578291Y - Bidirectional elevator safety devices - Google Patents
Bidirectional elevator safety devices Download PDFInfo
- Publication number
- CN2578291Y CN2578291Y CN 02248318 CN02248318U CN2578291Y CN 2578291 Y CN2578291 Y CN 2578291Y CN 02248318 CN02248318 CN 02248318 CN 02248318 U CN02248318 U CN 02248318U CN 2578291 Y CN2578291 Y CN 2578291Y
- Authority
- CN
- China
- Prior art keywords
- elevator
- pilot bar
- connecting rod
- bidirectional
- safeties
- 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 - Lifetime
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an elevator bidirectional safety device which comprises an upwards running safety tong and a downwards safety tong which are respectively installed on an upper cross beam and a bottom of an elevator car of an elevator and a control mechanism. In the utility model, the control mechanism comprises two rotating shafts which are installed on the upper cross beam of the elevator, a connecting rod of which the both ends are respectively hinged with the rotating shafts by short arms with opposite directions, a shifting fork which is arranged between guide rod components which are respectively connected to both sides of the rotating shafts and the elevator car and a control rod which is connected with one of the rotating shafts; the control rod is connected with a steel wire of a speed limiter; the guide rod components are connected with lifting and pressing rods of the upwards running safety tong and the downwards safety tong. The utility model has the advantage of simple structure, can directly use existing safety tongs without the change of elevator well channel structures and is convenient for reforming existing one-way safety elevator devices.
Description
Technical field
The utility model relates to a kind of elevator bidirectional safeties of being made up of safety tongs and action control mechanism thereof.
Background technology
For lift car up-downgoing hypervelocity is implemented protection, people have designed multiple elevator bidirectional safeties, and they are controlled by velocity limiter, realize defencive function by the action of safety tongs up and down.Such as, Chinese patent application 00105649.2 and Chinese patent 00221539.X disclose two kinds of bidirectional safety tongs for elevator.First kind of structure is that upper and lower brake equipment is arranged in the same caliper, and be installed in below the car frame underbeam, though this structure is comparatively compact, and have only a cover pressure-raising system, but variation has taken place in the existing unidirectional safety tongs of its structure, needs redesign, makes; And highly higher, to increase the elevator hoistways pit depth during installation; Sedan-chair bottom structure complexity is not easy to installation and maintenance.Second kind of structure seems simply, but the processing technology complexity will carry out during installation medium pretreatment is unsuitable for practical application.It is that brake equipment on is being arranged on the car frame that a kind of structure is also arranged, and a following brake equipment is arranged under the car frame, connect by the connecting rod about a car frame height, but its structure is comparatively complicated Installation and Debugging inconvenience.
Summary of the invention
The purpose of this utility model is for a kind of simple in structure, elevator bidirectional safeties of not needing to change the elevator hoistways structure, can directly utilizing existing safety tongs is provided.
Main technical schemes of the present utility model is: this elevator bidirectional safeties comprises uplink and downlink safety tongs and the control mechanism that is installed in respectively at the bottom of elevator entablatrance and the car, described control mechanism comprise two rotating shafts being installed in the elevator entablatrance, two ends respectively by galianconism with relative direction and rotating shaft pivotally attached connecting rod, be connected to shift fork between the pilot bar assembly of rotating shaft and car both sides, with control stalk that rotating shaft links to each other wherein, control stalk links to each other with speed limiter wire rope, and the pilot bar assembly links to each other with the pressure-raising bar of uplink and downlink safety tongs.
When lift car upstream or downstream hypervelocity reaches governor tripping speed, the compacted stop of speed limiter wire rope, will spur control stalk rotates, driving rotating shaft by galianconism rotates, and the rotating shaft of another side is also linked by pull bar, drive the pressure-raising bar of pilot bar assembly, uplink and downlink safety tongs again by shift fork, realize the action of upstream or downstream safety tongs.Simple in structure, do not need to change the elevator hoistways structure, can directly utilize existing safety tongs to realize bidirectional safe control, be convenient to existing non-return finger elevator is transformed.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the Facad structure scheme drawing of an embodiment of the utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the A-A cutaway view of pilot bar assembly;
Fig. 4 is the B-B cutaway view of pilot bar assembly.
The specific embodiment
As Fig. 1, shown in 2, elevator bidirectional safeties in the present embodiment, it comprise be installed in respectively at the bottom of elevator entablatrance and the car on, descending safety tongs and control mechanism, described control mechanism comprises two rotating shafts 2 that are installed in elevator entablatrance 13,2 ', two ends are respectively by galianconism 3,3 ' with relative direction and rotating shaft 2,2 ' pivotally attached connecting rod 4, be connected to rotating shaft 2,2 ' with the pilot bar assembly 6 of car both sides, 6 ' between shift fork 5,5 ', with control stalk 1 that rotating shaft 2 links to each other wherein, control stalk 1 links to each other with speed limiter wire rope, pilot bar assembly 6,6 ' with last, the pressure-raising bar of descending safety tongs links to each other.Shown in Fig. 3,4, described pilot bar assembly comprises the last pilot bar 8 that is enclosed within the orienting sleeve 10, following pilot bar 9, offer rectangular groove 101,81 respectively on orienting sleeve 10, the last pilot bar 8, the rectangular groove 81 that connecting pin 7 passes on the pilot bar 8 connects upward pilot bar 8 and orienting sleeve 10, another connecting pin 7 ' pass rectangular groove 101 on the orienting sleeve 10 connects pilot bar 9 and orienting sleeves 10 down, between last pilot bar 8, the following pilot bar 9 spring 11 is housed, its effect is to make pilot bar 8 and up safety tongs shift mechanism be in normal adjustment position under elevator normal operation state.For fear of misoperation, preloading spring is housed on connecting rod, as shown in Figure 1, 2, connecting rod 4 passes " U " shape bearing 14 that is fixed on entablatrance, and is positioned on the connecting rod between bearing two blocks are arranged relatively, and preloading spring 12 is contained between two blocks.
When the up hypervelocity of lift car reaches governor tripping speed, the compacted stop of speed limiter wire rope, lift car is up, thereby pulling control stalk 1 clockwise rotates downwards, drive rotating shaft 2, galianconism 3 also clockwise rotates, the elastic force that promotion connecting rod 4 overcomes preloading spring 12 moves to the left side, drive then galianconism 3 ', rotating shaft 2 ' rotate counterclockwise, and rotating shaft 2,2 ' rotation drive shift fork 5,5 ' move downward, by connecting pin 7 pulling orienting sleeves 10, last pilot bar 8 moves downward along the elastic force of pilot bars 9 and pin 7 down ' overcome spring 11, at this moment, pin 7 ', following pilot bar 9 maintains static, the motion of last pilot bar 8 spurs the pressure-raising bar of up safety tongs, makes up safety tongs move.When needing descending safety tongs to move, the direction of action of above-mentioned member in contrast.Wherein the effect of preloading spring 12 is only when the power of lifting of speed limiter wire rope can overcome its setting value, and safety tongs just can move, thereby can avoid misoperation.
Claims (4)
1, a kind of elevator bidirectional safeties, comprise be installed in respectively at the bottom of elevator entablatrance and the car on, descending safety tongs and control mechanism, it is characterized in that: described control mechanism comprises two rotating shafts (2) that are installed in elevator entablatrance (13), (2 '), two ends are respectively by galianconism (3), (3 ') are with relative direction and rotating shaft (2), (2 ') pivotally attached connecting rod (4), be connected to rotating shaft (2), the pilot bar assembly (6) of (2 ') and car both sides, shift fork between (6 ') (5), (5 '), the control stalk (1) that links to each other with a rotating shaft (2) wherein, control stalk (1) links to each other with speed limiter wire rope, pilot bar assembly (6), (6 ') are with last, the pressure-raising bar of descending safety tongs links to each other.
2, a kind of elevator bidirectional safeties according to claim 1, it is characterized in that: described pilot bar assembly comprises the last pilot bar (8) that is enclosed within the orienting sleeve (10), following pilot bar (9), orienting sleeve (10), offer rectangular groove (101) on the last pilot bar (8) respectively, (81), connecting pin (7) passes pilot bar (8) and orienting sleeve (10) in rectangular groove (81) connection on the pilot bar (8), the rectangular groove (101) that another connecting pin (7 ') passes on the orienting sleeve (10) connects pilot bar (9) and orienting sleeve (10) down, last pilot bar (8), spring (11) is housed between the following pilot bar (9).
3, according to claim 1 or 2 described a kind of elevator bidirectional safeties, it is characterized in that: the preloading spring (12) that prevents the connecting rod misoperation is housed on the connecting rod (4).
4, according to claim 1 or 2 described a kind of elevator bidirectional safeties, it is characterized in that: connecting rod (4) passes " U " shape bearing (14) that is fixed on entablatrance, and being positioned at has two blocks relatively on the connecting rod between bearing, preloading spring (12) is contained between two blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248318 CN2578291Y (en) | 2002-09-27 | 2002-09-27 | Bidirectional elevator safety devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248318 CN2578291Y (en) | 2002-09-27 | 2002-09-27 | Bidirectional elevator safety devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578291Y true CN2578291Y (en) | 2003-10-08 |
Family
ID=33718974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02248318 Expired - Lifetime CN2578291Y (en) | 2002-09-27 | 2002-09-27 | Bidirectional elevator safety devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578291Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979298A (en) * | 2010-10-20 | 2011-02-23 | 日立电梯（中国）有限公司 | Elevator safety stop trigger device |
| CN103086224A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Elevator structure |
-
2002
- 2002-09-27 CN CN 02248318 patent/CN2578291Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979298A (en) * | 2010-10-20 | 2011-02-23 | 日立电梯（中国）有限公司 | Elevator safety stop trigger device |
| CN101979298B (en) * | 2010-10-20 | 2013-03-13 | 日立电梯（中国）有限公司 | Elevator safety stop trigger device |
| CN103086224A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Elevator structure |
| CN103086224B (en) * | 2012-11-19 | 2015-04-22 | 江南嘉捷电梯股份有限公司 | Elevator structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120927 Granted publication date: 20031008 |