CN2091849U - Brake for preventing cage of elevator from falling - Google Patents
Brake for preventing cage of elevator from falling Download PDFInfo
- Publication number
- CN2091849U CN2091849U CN 91216042 CN91216042U CN2091849U CN 2091849 U CN2091849 U CN 2091849U CN 91216042 CN91216042 CN 91216042 CN 91216042 U CN91216042 U CN 91216042U CN 2091849 U CN2091849 U CN 2091849U
- Authority
- CN
- China
- Prior art keywords
- cage
- spring
- eccentric
- swivel arm
- brake equipment
- 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.)
- Withdrawn
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a brake device for preventing cage of elevator from falling, comprising a pair of brake calipers, a spring connected with the brake calipers, and a linkage rope linked with the drag wire rope of the cage. The brake calipers comprise a rotating arm and an eccentric caliper block. When the cage normally works, the applied moments of the linkage rope and the spring are in balance, and the eccentric caliper block doesn't contract with the guide rail of the cage. But when the drag wire rope breaks, the linkage rope loosens, the spring causes the brake caliper to rotate, thereby, the eccentric caliper block is caused to clamp on the guide rail of the cage, and the self weight of the cage causes the eccentric caliper block to clamp more tightly. The utility model has the advantages of sensitive and reliable action, small impact force, no damage to the guide rail and the derrick, and repeated use.
Description
The utility model relates to lifting machinery, particularly a kind of anti-fall brake equipment that is applicable to elevator craning cage.
At present the cage serious accidents such as causing personal injury of falling in use usually takes place in the cage of elevator (comprising derrick, door frame, simple elevator, tower crane man lift etc.) because of the poor reliability of rope broken protector.The comparison representative type rope broken protector that uses has two kinds of forms now:
1. relief spring pin: generally be installed in the cage top near place, outer steel structure both sides and haulage cable interlock.By the weight compressing secure guide seat inner spring of cage, make in the safety pin indentation block set during cage normal operation, do not contact with the external metallization structure.In case haulage cable is disconnected, the steel cable that links with safety pin loses pulling force and relaxes, spring in the safe key seat ejects bearing pin on the horizon bar or slash that makes bearing pin rest the exterior metal structure of cage (or the body of the tower of tower crane etc.), thereby stops the cage tenesmus.
2. hook with safety tong: principle is similar to kind.Because safety pin horizontal direction stroke is short, the position distortion of shelving can lose stable the continuation and drop, and use hook instead just in order to attempt to change the above-mentioned weak point of safety pin, can hang over when cage drops on the hard ware, reaches the purpose that stops the cage tenesmus.
Reliability was unsatisfactory when but these brake equipments used in reality.Because the impulsive force during the cage tenesmus easily deforms after safety pin and the hard ware of being shelved thereof are hit, even therefore causes the integral structure unstability, leads to bigger accident.And hard ware has certain intervals, and irregular differing of safety pin pop-up action time can not be worked fully.In addition,, make moist and get rusty, or part cooperates factors such as tension, stroke deficiency in the installation, machine up, does not have effect because spring, bearing pin etc. are in off position for a long time.Therefore, the cage that these fender guards have been installed falling accident when disconnected rope still happens occasionally.
The purpose of this utility model promptly provides a kind of simple in structure and be active in one's movements and reliably, can not make elevator structure produce the anti-fall brake equipment of elevator craning cage of distortion.
Anti-fall brake equipment of the present utility model comprises a pair of brake clamp and the spring that is installed on the cage, the haulage cable of cage comes bird cage by a slider pad that can fluctuate between a high position and low level, brake clamp is formed by swivel arm with near the cam-like eccentric tongs piece of cage guide rail, the eccentric tongs piece is fixed in an end of swivel arm, the eccentric tongs piece is installed in rotation on the cage by an axle bed, one end of a pair of interlock rope links to each other with slider pad respectively, the other end is connected on the swivel arm, when haulage cable was strained, slider pad was in a high position, the tension of interlock rope, swivel arm is applied a power that makes progress, when steel rope broke, slider pad fell, and the interlock rope is lax; Spring one end is fixed on the cage, and the other end links to each other with swivel arm, and to swivel arm apply one with the opposite moment of interlock rope applied moment direction.
Adopted this brake equipment, when disconnected rope takes place when, spring makes brake clamp rotate and the eccentric tongs piece is clamped on the guide rail around axle bed, and the bearing down of cage further rotates the eccentric tongs piece and holds tighter gradually by extrusion friction power, impulsive force is little, to the basic zero damage of guide rail, and derrick, door frame or tower crane there is not coup injury.And be active in one's movements good reliability.
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, to understand and to understand purpose of the present invention, structure and characteristics better.
Fig. 1 is the situation of brake equipment of the present utility model when cage normally moves;
Fig. 2 is the situation of brake equipment when cage falls because of the traction steel wire fracture of rope of Fig. 1.
Please referring to Fig. 1, a kind of anti-fall brake equipment of the present utility model comprises the brake clamp of a pair of level, and they are installed on the cage (not shown) symmetrically near the both sides of cage guide rail 5, and they are formed by connecting by eccentric tongs piece 3 and swivel arm 7.Eccentric tongs piece 3 is a cam-like, be installed on the cage by axle bed 2, thereby whole brake clamp can rotate around axle bed 2.Draw spring 1 one ends to be connected with the free end of swivel arm 7, the other end is fixed on the post beam 8 of cage.Be connected swivel arm 7 with the interlock rope 4 of haulage cable interlock, it is applied a power that makes progress.When cage was in normal operation, brake equipment was in the state of Fig. 1, and interlock rope 4 is tightened up, the opposite and balance of applied moment of spring 1 and 4 pairs of brake clamps of interlock rope, and the eccentric minor axis part of eccentric tongs piece 3 does not contact with guide rail 5, and the operation of cage is unaffected.
When the traction steel wire fracture of rope of cage, interlock rope 4 is lax, and the application force of swivel arm 7 is disappeared.As shown in Figure 2, brake clamp direction of arrow in drawing the effect lower edge figure of spring 1 is rotated around axle bed 2, and the eccentric long axis part of eccentric tongs piece 3 comes in contact friction with cage guide rail 5, produce a pair of along the guide rail vertical direction power and be clipped on the guide rail 5.In the process of cage tenesmus, eccentric tongs piece 3 forces eccentric tongs piece 3 further to rotate with the friction force of guide rail 5, and eccentric tongs piece 3 is clamped on the guide rail 5 gradually, and folder is tight more more, makes cage stop tenesmus, reaches the purpose of braking.
Otherwise, when the cage haulage cable is repaired again, needing only cage is done upwards operation, its brake clamp can progressively restore to the original state voluntarily, automatically terminates clamping, and cage is normally moved.
Interlock rope 4 can have various interlock modes with haulage cable, comes bird cage such as haulage cable by a slider pad (not shown), and slider pad can fluctuate between a high position and low level, and interlock rope 4 links to each other with slider pad.When steel rope was strained, slider pad was in a high position, and interlock rope 4 is tightened up; When steel rope broke, slider pad fell, and interlock rope 4 is lax, and anti-fall brake equipment works.This slider pad can directly be replaced by the derrick block that can fluctuate.
Certainly, draw also available curved spring of spring or the pressing spring that are adopted in the above-mentioned anti-fall brake equipment replace, if to brake clamp apply one with restrict 4 the opposite moment of applied moment direction of interlock.
Use this device can make cage when the traction steel wire fracture of rope, cage tenesmus stroke is not more than in 10 centimetres and promptly is locked at voluntarily on the guide rail 5.Through repetition test, impulsive force is little, and good reliability is reusable, and simple in structure, and is easy for installation, also can be suitable for transforming on existing elevator craning cage.
Claims (6)
1, the anti-fall brake equipment of a kind of elevator craning cage comprises a pair of brake clamp and the spring that are installed on the cage, it is characterized in that, haulage cable comes bird cage by a slider pad that can fluctuate between a high position and low level; Brake clamp is formed by swivel arm with near the cam-like eccentric tongs piece of cage guide rail, and the eccentric tongs piece is fixed in an end of swivel arm, and the eccentric tongs piece is installed in rotation on the cage by an axle bed; One end of a pair of interlock rope links to each other with slider pad respectively, and the other end is connected on the swivel arm, and when haulage cable was strained, slider pad was in a high position, and the tension of interlock rope applies a power that makes progress to swivel arm, and during wire cable rupture, slider pad falls, and the interlock rope is lax; Spring one end is fixed on the cage, and the other end links to each other with swivel arm, and to swivel arm apply one with the opposite moment of interlock rope applied moment direction.
2, anti-fall brake equipment as claimed in claim 1 is characterized in that, it is installed in the top of cage top-side cage guide rail.
3, anti-fall brake equipment as claimed in claim 1 or 2 is characterized in that, described spring is for drawing spring.
4, anti-fall brake equipment as claimed in claim 1 or 2 is characterized in that, described spring is a curved spring.
5, anti-fall brake equipment as claimed in claim 1 or 2 is characterized in that, described spring is a pressing spring.
6, anti-fall brake equipment as claimed in claim 1 is characterized in that, the derrick block of described slider pad for fluctuating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216042 CN2091849U (en) | 1991-06-08 | 1991-06-08 | Brake for preventing cage of elevator from falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216042 CN2091849U (en) | 1991-06-08 | 1991-06-08 | Brake for preventing cage of elevator from falling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2091849U true CN2091849U (en) | 1992-01-01 |
Family
ID=4924035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91216042 Withdrawn CN2091849U (en) | 1991-06-08 | 1991-06-08 | Brake for preventing cage of elevator from falling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2091849U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865757A (en) * | 2010-03-23 | 2010-10-20 | 昆山市创新科技检测仪器有限公司 | Impact testing machine of pneumatic piston type automobile parts |
| CN103261075A (en) * | 2010-12-17 | 2013-08-21 | 因温特奥股份公司 | Actuation of an intercepting apparatus |
| CN107032270A (en) * | 2017-06-22 | 2017-08-11 | 周勇华 | The safety lock and its application method of a kind of aerial platform |
| CN109244938A (en) * | 2018-10-23 | 2019-01-18 | 国网湖南省电力有限公司 | A kind of anti-race linear speed brake device of Poling Construction |
| CN110499922A (en) * | 2019-08-28 | 2019-11-26 | 广东博智林机器人有限公司 | A kind of wallboard installation equipment |
| CN111646336A (en) * | 2020-07-08 | 2020-09-11 | 张敬波 | Free falling body locking device of elevator |
-
1991
- 1991-06-08 CN CN 91216042 patent/CN2091849U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865757A (en) * | 2010-03-23 | 2010-10-20 | 昆山市创新科技检测仪器有限公司 | Impact testing machine of pneumatic piston type automobile parts |
| CN101865757B (en) * | 2010-03-23 | 2012-09-05 | 昆山市创新科技检测仪器有限公司 | Impact testing machine of pneumatic piston type automobile parts |
| CN103261075A (en) * | 2010-12-17 | 2013-08-21 | 因温特奥股份公司 | Actuation of an intercepting apparatus |
| CN103261075B (en) * | 2010-12-17 | 2015-12-02 | 因温特奥股份公司 | The operation of falling protector |
| CN107032270A (en) * | 2017-06-22 | 2017-08-11 | 周勇华 | The safety lock and its application method of a kind of aerial platform |
| CN109244938A (en) * | 2018-10-23 | 2019-01-18 | 国网湖南省电力有限公司 | A kind of anti-race linear speed brake device of Poling Construction |
| CN109244938B (en) * | 2018-10-23 | 2024-02-02 | 国网湖南省电力有限公司 | Anti-running line quick brake for overhead line construction |
| CN110499922A (en) * | 2019-08-28 | 2019-11-26 | 广东博智林机器人有限公司 | A kind of wallboard installation equipment |
| CN110499922B (en) * | 2019-08-28 | 2022-03-18 | 广东博智林机器人有限公司 | Wallboard mounting equipment |
| CN111646336A (en) * | 2020-07-08 | 2020-09-11 | 张敬波 | Free falling body locking device of elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102730511B (en) | Anti-drop protection device and lifter | |
| CN106629309A (en) | Dropping prevention mechanism of device for lifting four-corner drill tower from ground | |
| CN107235399A (en) | A kind of fall arrest hanging basket | |
| US4225012A (en) | Safety clamp device and apparatus utilizing same | |
| CN2091849U (en) | Brake for preventing cage of elevator from falling | |
| CN210598319U (en) | Mechanical parking equipment wire rope locking device and parking equipment | |
| CN206844773U (en) | A kind of new-type steel wire rope looseness detection | |
| CN201148306Y (en) | Anti-unhooking security device of crane | |
| CN2067696U (en) | Breaked steel rope protector | |
| CN2070728U (en) | Anti-fall cam type safety device for mining elevator | |
| CN107285225B (en) | Electric hoist with rope breakage protection function | |
| BE1009017A3 (en) | HANGING DEVICE WITH A CABLE FOR A LOAD CONNECTED TO IT. | |
| CN201172576Y (en) | Falling proof mechanism for crane hook | |
| CN211664577U (en) | Lever type cable breakage-proof protection device | |
| CN2868955Y (en) | Lifter anti-drop safety device | |
| CN207346934U (en) | A kind of device for preventing accidental movement of elevator cage | |
| CN212609125U (en) | Rope breaking protection device for hoisting | |
| CN220950763U (en) | Counterweight housing with safety tongs | |
| CN2581392Y (en) | Device for breaking rope protecting, door opening self-locking and preventing falling of material elevator | |
| CN218950731U (en) | Construction elevator haulage rope prevents protection device that breaks | |
| CN2292857Y (en) | Anti-overturning and anti-falling integrally lifting scaffold | |
| CN2536562Y (en) | Elevator speed limiter | |
| CN220223307U (en) | Four-bar linkage counterweight structure for limiting heavy hammer of bridge crane | |
| CN2224195Y (en) | Gripper-type rope-break protection device for portal frame | |
| CN213651560U (en) | Traction system capable of increasing wrap angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 |