CN202142236U - Safety gear - Google Patents
Safety gear Download PDFInfo
- Publication number
- CN202142236U CN202142236U CN201120257586U CN201120257586U CN202142236U CN 202142236 U CN202142236 U CN 202142236U CN 201120257586 U CN201120257586 U CN 201120257586U CN 201120257586 U CN201120257586 U CN 201120257586U CN 202142236 U CN202142236 U CN 202142236U
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- CN
- China
- Prior art keywords
- elevator
- speed
- hinged
- utility
- spring
- 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 discloses a safety gear, comprising a toplever, a rotary rod, a spring and a brake wheel. One end of the toplever is in connection with a speed limiter, and the other end is in connection with the rotary rod; one end of the rotary rod is hinged to a car, and the other end is hinged to the brake wheel; one end of the spring is against the rotary rod, and the other end is against the car. According to the utility model, components are cooperated in such a way that when a decreasing speed of an elevator exceeds a normal moving speed, the speed limiter of the elevator pulls upward the toplever, and accordingly, the brake wheel is pressed on elevator guide rails to stop or slow down the elevator and to realize safe drop. The safety gear possesses the advantages of a simple structure and low costs.
Description
Technical field
The utility model relates to a kind of safety tongs, especially relates to the safety tongs that a kind of elevator of imparting knowledge to students is used.
Background technology
Existing limiter of speed is loaded in the machine room of elevator hoistways top layer, and the safety tongs of elevator is another independent clamping device, is installed in the car bottom.Normally utilize the overspeed governor that is suspended in the governor rope race to be connected with the safety tongs linkage assembly of car bottom; And extend to bottom the hoistway always; Walk around in the rope sheave groove that the stretching pulley that is installed in the pit turns back to elevator hoistways top layer limiter of speed again, constitute circulation and connect.
When cage operation surpassed rated speed, the rope sheave rotating speed on the limiter of speed surpassed the rotating speed of setting, and on the rope sheave centrifugal or ratchet are under centrifugal action; Button is driven snak link; Make overspeed governor voussoir locking overspeed governor, and this moment, car was still done overspeed, so car and overspeed governor produce a relative motion; The power of this relative motion is stirred the latch mechanism of safety tongs; With wedging of the voussoir in the safety tongs or eccentric off-centre, clamp elevator rail, prevent elevator to do the hypervelocity motion.Yet, existing limiter of speed complex structure, cost is high.
The utility model content
The utility model is to the defective that above-mentioned background technology exists a kind of simple in structure and safety tongs that cost is low to be provided.
For realizing above-mentioned purpose, the utility model discloses a kind of safety tongs, it comprises shadoof, bull stick, spring and braked wheel, and an end of said shadoof links to each other with limiter of speed, and the other end of said shadoof links to each other with said bull stick; One end of said bull stick is hinged on the sedan-chair case, and the other end is hinged with said braked wheel; One end of said spring is replaced on said bull stick, and the other end of said spring is replaced on car.
Further, said braked wheel is an eccentric wheel, and said eccentric wheel is positioned at elevator rail.
In sum; The utility model safety tongs is through the cooperation of said each parts, and when the speed of elevator decline surpassed speed of its normal operation, the limiter of speed of elevator upwards lifted said shadoof; Thereby said braked wheel is pressed on the cage guide; Elevator is stopped or slowing down, realize safe falling, it has advantage simple in structure and that cost is low.
Description of drawings
Fig. 1 is the synoptic diagram of a kind of embodiment of the utility model.
Embodiment
For further understanding characteristic, technological means and the specific purposes that reached, the function of the utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1, the utility model safety tongs 100 comprises shadoof 101, bull stick 102, spring 103 and braked wheel 104.One end of said shadoof 101 links to each other with limiter of speed 200, and the other end of said shadoof 101 links to each other with said bull stick 102.One end of said bull stick 102 is hinged on the sedan-chair case, and the other end is hinged with said braked wheel 104.One end of said spring 103 is replaced on said bull stick 102, and the other end of said spring 103 is replaced on car.In the present embodiment, said braked wheel 104 is an eccentric wheel, and said eccentric wheel is positioned at elevator rail.
Said limiter of speed 200 comprises limiter of speed pedestal 201 and is fixed on the auxiliary fixing seat 202 on the car; Said limiter of speed pedestal 201 is hinged with rope sheave 203; Said rope sheave 203 is wound with overspeed governor 204; One side of said rope sheave 203 is equipped with ratchet 205 and ratchet 206, is hinged with the rope arrestment mechanism on the said ratchet 205.
Said rope arrestment mechanism is provided with the pull bar 207 hinged with said ratchet 205; Said pull bar 207 is connected with an end of brake-shoe pedestal 208; The other end of said brake-shoe pedestal 208 is hinged on the limiter of speed pedestal 201 through first coupling shaft 209, and said brake-shoe pedestal 208 is hinged with the brake-shoe 211 corresponding with said overspeed governor 204 through second coupling shaft 210.Said pull bar 207 is arranged with first spring 212, and an end of this first spring 212 is replaced the end at pull bar 207, and the other end is replaced on said brake-shoe pedestal 208.
One end of said overspeed governor 204 is connected with first linking arm 213; Said first linking arm 213 is hinged with second linking arm 214; Be provided with elastic component 215 between said first linking arm 213 and the car; In the present embodiment, said elastic component 215 is second spring, and said second spring housing is located on the guide pillar 216.One end of said guide pillar 216 and said auxiliary fixing seat 202 are hinged, and the other end links to each other with the 3rd coupling shaft 217 on being plugged in said first linking arm 213 and second linking arm 214.Said second linking arm 214 links to each other with the shadoof 101 of safety tongs 100.Said auxiliary fixing seat 202 is hinged with the 3rd linking arm 218, and the other end of said the 3rd linking arm 218 links to each other with said the 3rd coupling shaft 217, thereby forms the form that said first linking arm 213 links to each other with said second linking arm 214 and the 3rd linking arm 218.
The principle of work of the utility model is: when excessive velocities that elevator rises or descends; The ratchet 206 of said limiter of speed 200 links to each other with said ratchet 205 engagements because of receiving action of centrifugal force; Said ratchet 205 drives the said overspeed governor 204 of said rope arrestment mechanism clamping, and second linking arm 214 of said limiter of speed 200 upwards lifts the shadoof 101 of said safety tongs 100, thereby said braked wheel 104 is pressed on the cage guide; Elevator is stopped or slowing down, realize safe falling.
In sum; The utility model safety tongs is through the cooperation of said each parts, and when the speed of elevator decline surpassed speed of its normal operation, the limiter of speed of elevator upwards lifted said shadoof; Thereby said braked wheel is pressed on the cage guide; Elevator is stopped or slowing down, realize safe falling, it has advantage simple in structure and that cost is low.
The above embodiment has only expressed a kind of embodiment of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with accompanying claims.
Claims (2)
1. safety tongs; It is characterized in that: comprise shadoof (101), bull stick (102), spring (103) and braked wheel (104); One end of said shadoof (101) links to each other with limiter of speed (200), and the other end of said shadoof (101) links to each other with said bull stick (102); One end of said bull stick (102) is hinged on the sedan-chair case, and the other end is hinged with said braked wheel (104); One end of said spring (103) is replaced on said bull stick (102), and the other end of said spring (103) is replaced on car.
2. safety tongs according to claim 1 is characterized in that: said braked wheel (104) is an eccentric wheel, and said eccentric wheel is positioned at elevator rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120257586U CN202142236U (en) | 2011-07-21 | 2011-07-21 | Safety gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120257586U CN202142236U (en) | 2011-07-21 | 2011-07-21 | Safety gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142236U true CN202142236U (en) | 2012-02-08 |
Family
ID=45553286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120257586U Expired - Fee Related CN202142236U (en) | 2011-07-21 | 2011-07-21 | Safety gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360462A (en) * | 2018-12-05 | 2019-02-19 | 苏州市职业大学 | A kind of elevator simulation computer room real training and checking device |
| CN117800189A (en) * | 2024-03-01 | 2024-04-02 | 福建天行电缆有限公司 | Building construction elevator cable limit structure |
-
2011
- 2011-07-21 CN CN201120257586U patent/CN202142236U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360462A (en) * | 2018-12-05 | 2019-02-19 | 苏州市职业大学 | A kind of elevator simulation computer room real training and checking device |
| CN117800189A (en) * | 2024-03-01 | 2024-04-02 | 福建天行电缆有限公司 | Building construction elevator cable limit structure |
| CN117800189B (en) * | 2024-03-01 | 2024-05-10 | 福建天行电缆有限公司 | Building construction elevator cable limit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150721 |
|
| EXPY | Termination of patent right or utility model |