CN202464981U - Safety tongs with cam structure - Google Patents
Safety tongs with cam structure Download PDFInfo
- Publication number
- CN202464981U CN202464981U CN2012200606111U CN201220060611U CN202464981U CN 202464981 U CN202464981 U CN 202464981U CN 2012200606111 U CN2012200606111 U CN 2012200606111U CN 201220060611 U CN201220060611 U CN 201220060611U CN 202464981 U CN202464981 U CN 202464981U
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- CN
- China
- Prior art keywords
- cam
- wedge block
- voussoir
- movable
- safety tongs
- 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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Abstract
The utility model discloses a pair of safety tongs with a cam structure. The pair of safety tongs comprises a fixed wedge block device, a movable wedge block device and a center shaft, wherein the fixed wedge block device comprises a fixed wedge block, double-screw studs, a disk spring, an adjusting bolt, a spring and a fastening part; the movable wedge block device comprises a cam, a movable wedge block, a steel belt for fixing a cam and a fastening part; the fixed wedge block is connected with the disk spring through the double-screw bolt; the movable wedge block and the cam are fixed through the steel belt for fixing the cam in a matching mode; the center shaft is matched with the movable wedge block, the guide rail, the fixed wedge block and the adjusting bolt; the fixed wedge block and the movable wedge block are respectively distributed on two sides of the guide rail; and a starting arm is matched with the cam and a safety rope mechanism. The radius of the cam which is contacted with the movable wedge block is gradually increased through the rolling of the cam, so that the movable wedge block and the fixed wedge block clamp the guide rail to achieve the good brake effect; and therefore, the security performance of elevators is improved.
Description
Technical field
The utility model relates to a kind of elevator and uses safety tongs, be specifically related to a kind of routine vertically move elevator with and the safety tongs of the employing cam structure used of diagonal elevator.
Background technology
As everyone knows, safety tongs all is installed on the elevator.But the composition of safety tongs but is not quite similar, and traditional safety tongs all is to clamp cage guide by two voussoir move toward one another, thereby makes car stop to fall.But this safety tongs meets when driving over the speed limit, and safety tongs is not easy to block guide rail, does not have good safety performance.
The utility model content
The purpose of the utility model is to provide the safety tongs of effective, the safe employing cam structure of a kind of stop.
The technical scheme of the utility model is: a kind of safety tongs that adopts cam structure; Comprise fixed wedge block assembly, movable wedge system and center shaft; Described fixed wedge block assembly comprises fixedly voussoir, double end stud, disk spring, adjustable bolt, spring and fastener; Described movable wedge system comprises that cam, movable voussoir, stationary cam are with steel band and fastener; Described fixedly voussoir is connected with disk spring through double end stud, and described movable voussoir and cam pass through stationary cam and use the steel band matching and fixing, and described center shaft and movable voussoir, guide rail, fixedly voussoir and adjustable bolt cooperate; Described fixedly voussoir and movable voussoir distribution guide rail both sides, described start arm cooperates with cam and safety rope mechanism.
In preferred embodiment of the utility model, described double end stud is two, three or four.
In preferred embodiment of the utility model, described fixedly voussoir and movable voussoir have the spacing of 1-2mm under safety tongs is in the normal state and between the guide rail.
In preferred embodiment of the utility model, described fastener is bolt or support.
The utility model is said to be a kind of safety tongs that adopts cam structure; Cam radii through adopting the cam rolling to contact with movable voussoir becomes big gradually; Make movable voussoir and fixedly voussoir clamp guide rail, thereby play a braking effect preferably, improved the safety performance that elevator uses.
Description of drawings
Fig. 1 was for adopting the scheme drawing of the safety tongs of cam structure in safety tongs one preferred embodiment of the utility model employing cam structure;
Each annex mark is following among the figure: 1, cam, 2, movable voussoir, 3, guide rail, 4, fixing voussoir, 5, disk spring, 6, start arm, 7, safety rope mechanism, 8, stationary cam uses steel band, 9, double end stud 10, adjustable bolt, 11, center shaft.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
The utility model is said to be a kind of safety tongs that adopts cam structure; As shown in Figure 1: the utility model is said to be a kind of safety tongs that adopts cam structure; Comprise fixedly voussoir 4 devices, movable voussoir 2 device and center shafts 11; Fixedly voussoir 4 devices comprise fixedly voussoir 4, double end stud 9, disk spring 5, adjustable bolt 10, spring and fastener, and movable voussoir 2 devices comprise that cam 1, movable voussoir 2, stationary cam are with steel band 8 and fastener.Fastener is bolt or support.Fixedly voussoir 4 is connected with disk spring 5 through double end stud 9, and double end stud 9 is two, three or four, is preferably two double end studs 9.Movable voussoir 2 passes through stationary cam with steel band 8 matching and fixing with cam 1.Center shaft 11 and movable voussoir 2, guide rail 3, fixedly voussoir 4 and adjustable bolt 10 cooperate.Fixedly voussoir 4 and movable voussoir 2 distribution guide rails 3 both sides, safety tongs under normal conditions, fixedly voussoir 4 is fixed with movable voussoir 2, through the spacing of 1-2mm is arranged between adjustable bolt 10 adjustings and the guide rail 3.Start arm 6 cooperates with safety rope mechanism 7 with cam 1.
During safety tongs work, cam 1 rotates under the drive of safety rope mechanism 7 through start arm 6, has cam 1 radius of rolling touch to become gradually greatly with movable voussoir 2 on the cam 1, and movable voussoir 2 is pushed up to guide rail 3 by the gradually big radius of cam 1, produces tensile force.Under the drive of safety rope mechanism 7, before cam 1 rotated to maximum radius, fixedly voussoir 4 blocked guide rail 3 with movable voussoir 2, makes car out of service.
The utility model is said to be a kind of safety tongs that adopts cam structure; Cam radii through adopting the cam rolling to contact with movable voussoir becomes big gradually; Make movable voussoir and fixedly voussoir clamp guide rail, thereby play a braking effect preferably, improved the safety performance that elevator uses.
The above is merely the specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the utility model disclosed; Variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. safety tongs that adopts cam structure; It is characterized in that: comprise fixed wedge block assembly, movable wedge system and center shaft; Described fixed wedge block assembly comprises fixedly voussoir, double end stud, disk spring, adjustable bolt, spring and fastener; Described movable wedge system comprises that cam, movable voussoir, stationary cam are with steel band and fastener; Described fixedly voussoir is connected with disk spring through double end stud, and described movable voussoir and cam pass through stationary cam and use the steel band matching and fixing, and described center shaft and movable voussoir, guide rail, fixedly voussoir and adjustable bolt cooperate; Described fixedly voussoir and movable voussoir distribution guide rail both sides, described start arm cooperates with cam and safety rope mechanism.
2. the safety tongs of employing cam structure according to claim 1 is characterized in that: described double end stud is two, three or four.
3. the safety tongs of employing cam structure according to claim 1 is characterized in that: described fixedly voussoir and movable voussoir have the spacing of 1-2mm under safety tongs is in the normal state and between the guide rail.
4. the safety tongs of employing cam structure according to claim 1 is characterized in that: described fastener is bolt or support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200606111U CN202464981U (en) | 2012-02-24 | 2012-02-24 | Safety tongs with cam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200606111U CN202464981U (en) | 2012-02-24 | 2012-02-24 | Safety tongs with cam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202464981U true CN202464981U (en) | 2012-10-03 |
Family
ID=46913161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200606111U Expired - Lifetime CN202464981U (en) | 2012-02-24 | 2012-02-24 | Safety tongs with cam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202464981U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530677A (en) * | 2012-02-24 | 2012-07-04 | 苏州莱茵电梯制造有限公司 | Safety gear with cam structure |
| CN105883529A (en) * | 2016-06-21 | 2016-08-24 | 浙江屹立电梯有限公司 | Self-balance progressive elevator safety tongs |
| CN107416638A (en) * | 2017-09-19 | 2017-12-01 | 西继迅达（许昌）电梯有限公司 | A kind of lift brake safety clamp |
| CN111217244A (en) * | 2020-03-13 | 2020-06-02 | 连红飞 | Gantry crane car-fixing device |
-
2012
- 2012-02-24 CN CN2012200606111U patent/CN202464981U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530677A (en) * | 2012-02-24 | 2012-07-04 | 苏州莱茵电梯制造有限公司 | Safety gear with cam structure |
| CN105883529A (en) * | 2016-06-21 | 2016-08-24 | 浙江屹立电梯有限公司 | Self-balance progressive elevator safety tongs |
| CN105883529B (en) * | 2016-06-21 | 2018-07-03 | 浙江屹立电梯有限公司 | A kind of gradual elevator safety tong of self-balancing |
| CN107416638A (en) * | 2017-09-19 | 2017-12-01 | 西继迅达（许昌）电梯有限公司 | A kind of lift brake safety clamp |
| CN111217244A (en) * | 2020-03-13 | 2020-06-02 | 连红飞 | Gantry crane car-fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City, Jiangsu province Changshou City 215500 yuanyangqiao Shanghu Town Industrial Park Patentee after: SUZHOU HUBSCHMANN RHEIN ELEVATOR CO., LTD. Address before: Suzhou City, Jiangsu province Changshou City 215500 yuanyangqiao Shanghu Town Industrial Park Patentee before: Suzhou Rhine Lift Manufacture Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |