CN203419655U - Eccentric wheel type instant lifting facility falling-prevention safety device suitable for U-steel guide rail - Google Patents
Eccentric wheel type instant lifting facility falling-prevention safety device suitable for U-steel guide rail Download PDFInfo
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- CN203419655U CN203419655U CN201320458240.7U CN201320458240U CN203419655U CN 203419655 U CN203419655 U CN 203419655U CN 201320458240 U CN201320458240 U CN 201320458240U CN 203419655 U CN203419655 U CN 203419655U
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- guide rail
- safety device
- eccentric
- wheel type
- bar guide
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Abstract
The utility model discloses an eccentric wheel type instant lifting facility falling-prevention safety device suitable for a U-steel guide rail. The eccentric wheel type instant lifting facility falling-prevention safety device is fixed and supported on an elevator lift cage through a supporting seat and a base. When the lift cage normally operates, eccentric braking tooth wheels are stretched under self-weight of the eccentric wheel type instant lifting facility falling-prevention safety device, and the eccentric braking tooth wheels are not in contact with the lift U-steel guide rail. When a steel wire rope or a lift cage suspension device is fractured, the lift cage performs free-fall motion, the eccentric wheel type instant lifting facility falling-prevention safety device loses supporting force, a triggering mechanism drives a locking mechanism which drives the eccentric braking tooth wheels to stretch and act oppositely, and therefore the distance between the two eccentric braking tooth wheels is shortened and the guide rail is locked by the eccentric braking tooth wheels. The shorter the distance between the two eccentric wheels is, the larger the locking force is, and therefore the lift cage is firmly braked on the elevator U-steel guide rail. The eccentric wheel type instant lifting facility falling-prevention safety device can be suitable for different lift cage rails after the distance between a sliding wheel and a clamping wheel of the U-steel guide rail, triggering is simple, performances are reliable, the structure is simple, cost is low, maintaining is convenient, and the eccentric wheel type instant lifting facility falling-prevention safety device is suitable for popularization and application.
Description
Technical field
The utility model relates to a kind of for the safety guard on U-bar guide rail elevator, and the moment of fracture occurs when hoisting cable specifically, prevents a kind of instantaneous formula lift installation anti-falling safety device of hanging basket tenesmus.
Background technology
The building hoist by rope traction or draw mode transmission using in the constructions such as construction trade at present, bearing main vertical transport work in engineering, apparatus for lifting/lowering freight especially for material lifting, because its each weight promoting is large and use frequent, add camp site rugged environment and maintaining not in time, easily there is the disconnected safety problem of falling of restricting, and most of apparatus for lifting/lowering freight tool does not mostly fill anti-falling safety device in the market, what filled falling protector also mostly adopts Wedge-type, the friction coefficient between voussoir and track that requires of Wedge-type is greater than 0.2 guarantee reliable in action, can not meet the operating needs of apparatus for lifting/lowering freight, also has a kind of eccentric wheel type of utilizing, its trigger mechanism utilizes the friction between friction wheel and guide rail, because hypervelocity drives trigger mechanism, this friction wheel must can be effective with guide rail close contact, once friction wheel does not contact the anti-fall effect that just loses with guide rail, due to the problem of the aspects such as apparatus for lifting/lowering freight camp site rugged environment and maintaining, easily there is the problem that trigger mechanism lost efficacy.Therefore, be necessary to relate to a kind of triggering of exploitation simple, sensitive reliable, the instantaneous formula lift installation of the eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail of error-free motion.
Utility model content
The purpose of this utility model is to provide a kind of triggering simple for above-mentioned technical matters, reasonable in design, brake sensitive, stable performance, the repeatedly used instantaneous formula lift installation of the eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail.
The utility model solves the problems of the technologies described above adopted technical scheme: the instantaneous formula lift installation of the eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail, comprise seat board, eccentric braking gear wheel, U-bar guide rail pulley, catch gear, flip flop equipment, supporting seat and base; Two described eccentric braking gear wheels are symmetricly set on described seat board front side; Upper and lower two pairs of described U-bar guide rail pulleys are arranged on described seat board front side by adapter shaft; Lift core steel guide rail is between two pairs of described U-bar guide rail pulleys and two described eccentric braking gear wheels; Described seat board middle part is provided with waist hole; Described catch gear comprises the pivot shaft being set on described supporting seat, and the plane matching with described waist hole is offered in described pivot shaft both sides, and described pivot shaft is through described waist hole; Be fixed on the driving rack of described support axial plane; The transmission gear that is arranged on described driving rack both sides and is meshed with described driving rack; With the spragging gear of the coaxial setting of described eccentric braking gear wheel, described spragging gear is meshed with transmission gear; Described seat board rear side is provided with described trigger mechanism, described trigger mechanism lower end is connected with described catch gear, described supporting seat is connected on described base, and described base is for being fixed on elevator craning cage by the instantaneous formula lift installation of eccentric wheel type anti-falling safety device.
In the utility model, described U-bar guide rail pulley comprises back-up ring type U-bar guide rail pulley and guiding grooved U-bar guide rail pulley, described back-up ring type U-bar guide rail pulley is arranged on the back side of lift core steel guide rail, on described back-up ring type U-bar guide rail pulley, is provided with back-up ring; On described guiding grooved U-bar guide rail pulley, be provided with guide groove; The back side of lift core steel guide rail is stuck on the back-up ring of described back-up ring type U-bar guide rail pulley; Described guiding grooved U-bar guide rail pulley is arranged on lift core steel guide rail leg side, and the leg side of lift core steel guide rail is stuck in the guide groove of described guiding grooved U-bar guide rail pulley; Described back-up ring type U-bar guide rail pulley cooperatively interacts with guiding grooved U-bar guide rail pulley, block securely lift core steel guide rail both sides, make lift core steel guide rail be difficult for overstepping the limit, guarantee that falling protector operates steadily on U-bar guide rail, guarantee that falling protector reliable action is on U-bar guide rail.
In the utility model, described trigger mechanism comprises the adjusting seat that is fixed on described seat board rear side; Be arranged on adjusting nut, spring lock block in described adjusting seat; The adjustment bolt matching with described adjusting nut; Be arranged on the spring perch on described pivot shaft; Be arranged on the triggering spring between described spring lock block and spring perch.
In the utility model, described driving rack middle part is provided with waist hole, for adjusting the fixed position of described driving rack on pivot shaft.
In the utility model, described driving rack middle part is provided with tooth bar pressure spring slot, and described tooth bar pressure spring slot is provided with tooth bar stage clip; When described trigger mechanism work, described eccentric gear wheel and guide rail contact friction, elevator craning cage self-gravity action is in eccentric gear, by friction force, drive two eccentric gears to continue move toward one another, spragging gear band nutating gear, transmission gear drives driving rack, thereby the impulsive force that tooth bar discharges between tooth bar and pivot shaft by tooth bar stage clip guarantees that tooth bar is not fragile.
In the utility model, described tooth bar stage clip two ends are respectively provided with a tooth bar press spring base.
In the utility model, between described pivot shaft rear end and supporting seat, be provided with holddown spring, guarantee that lift core steel guide rail compresses and fully contacts with described U-bar guide rail pulley, guarantees the reliability of braking effect.
In the utility model, described eccentric braking gear wheel and spragging gear are structure as a whole, and guarantee the reliability of braking effect.
In the utility model, described spring perch both sides are respectively arranged with a setscrew nut, prevent that described spring perch is shifted and causes triggering spring clamping stagnation, thereby prevent described trigger mechanism to lose efficacy, and guarantee safe in operation.
The utility model is fixedly supported on elevator craning cage by supporting seat and base, when cage normally moves, the utility model opens eccentric braking gear wheel by deadweight, do not contact with lift core steel guide rail, when steel rope or the fracture of cage suspension gear, cage is done the movement of falling object, the instantaneous formula lift installation of eccentric wheel type anti-falling safety device has lost bearing force, trigger mechanism drives catch gear, catch gear drives eccentric braking gear wheel Zhang Xiangxiang action, spacing between two eccentric braking gear wheels is reduced, cause wilfully heart braking cone locked guide rail, between two eccentric wheel, spacing is less, coupling mechanism force is just larger, make cage securely stop on lift core steel guide rail.
The utility model triggers simple, sensitive reliable, and dependable performance is simple in structure, with low cost, easy to maintenance, and after changing the spacing of U-bar guide rail pulley and clip wheel, can adapt to the different rail of lifter forms such as H steel, square tube, pipe, is suitable for applying.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model;
Fig. 2 is the left TV structure schematic diagram of the utility model;
Fig. 3 is the utility model plan structure schematic diagram;
Fig. 4 is the utility model trigger mechanism and locking mechanism structure schematic diagram.
In figure: 1. U-bar guide rail pulley, 2. transmission gear, 3. eccentric braking gear wheel, 4. spragging gear, 5. seat board, 6. trigger mechanism, 7. setscrew nut, 8. pivot shaft, 9. supporting seat, 10. base, 11. driving racks, 12. lift core steel guide rails, 13. trigger spring, 14. adjusting seats, and 15. adjusting nuts, 16. adjust bolt, 17. spring lock blocks, 18. spring perches, 19, tooth bar stage clip, 20. back-up rings, 21. back-up ring type U-bar guide rail pulleys, 22. guide grooves, 23. guiding grooved U-bar guide rail pulleys.
The specific embodiment
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
As shown in drawings, embodiment mono-, and a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail comprises seat board 5, eccentric braking gear wheel 3, U-bar guide rail pulley 1, catch gear, flip flop equipment, supporting seat 9 and base 10, two eccentric braking gear wheels 3 are symmetricly set on seat board 5 front sides, upper and lower two pairs of U-bar guide rail pulleys 1 are arranged on seat board 5 front sides by adapter shaft, play the guiding role, lift core steel guide rail 12 lays respectively between two pairs of U-bar guide rail pulleys 1 and two eccentric braking gear wheels, seat board 5 middle parts are provided with waist hole, catch gear comprises the pivot shaft 8 being set on supporting seat 9, and the plane matching with waist hole is offered in pivot shaft 8 front end both sides, and pivot shaft 8 front ends are through waist hole, make to be fixed by bolts to the driving rack 11 of pivot shaft 8 front end faces, the transmission gear 2 that is arranged on driving rack 11 both sides and is meshed with driving rack 11, with the spragging gear 4 of the coaxial setting of bias braking gear wheel 3, spragging gear 4 is meshed with transmission gear 2, seat board 5 rear sides are provided with trigger mechanism 6, and trigger mechanism 6 lower ends are connected with catch gear, and supporting seat 9 is connected on base 10, and base 10 is for being fixed on elevator craning cage by the instantaneous formula lift installation of eccentric wheel type anti-falling safety device, trigger mechanism 6 comprises the adjusting seat 14 of the cylindricality tubulose that is fixed on seat board 5 rear sides, be arranged on adjusting nut 15, spring lock block 17 in adjusting seat 14, the adjustment bolt 16 matching with adjusting nut 15, be arranged on the spring perch 18 on pivot shaft 8, be arranged on the triggering spring 13 between spring lock block 17 and spring perch 18, the utility model is fixedly supported on elevator craning cage by supporting seat 9 and base 10, when cage normally moves, the utility model opens eccentric braking gear wheel 3 by deadweight, do not contact with lift core steel guide rail 12, when steel rope or the fracture of cage suspension gear, cage is done the movement of falling object, the instantaneous formula lift installation of eccentric wheel type anti-falling safety device has lost bearing force, trigger mechanism 6 drives catch gear, catch gear drives 3 actions in opposite directions of eccentric braking gear wheel, 3 spacing of two eccentric braking gear wheels are reduced, cause wilfully heart braking gear wheel 3 to pin guide rail, between two eccentric wheel, spacing is less, coupling mechanism force is just larger, make cage securely stop on lift core steel guide rail 12.
Embodiment bis-: be with embodiment mono-difference, driving rack 11 middle parts are provided with waist hole, for adjusting the fixed position of driving rack 11 on pivot shaft 8; Driving rack 11 middle parts are provided with tooth bar pressure spring slot, and tooth bar pressure spring slot is provided with tooth bar stage clip 19; In the utility model, tooth bar stage clip 19 two ends are respectively provided with a tooth bar press spring base.
Embodiment tri-: be with the difference of previous embodiment, between pivot shaft 8 rear ends and supporting seat 9, be provided with holddown spring, guarantee that lift core steel guide rail 12 compresses and fully contacts with U-bar guide rail pulley 1, guarantees the reliability of braking effect.
Embodiment tetra-: be with the difference of previous embodiment, eccentric braking gear wheel 3 is structure as a whole with spragging gear 4, guarantees the reliability of braking effect.
Embodiment five: be with the difference of previous embodiment, spring perch 18 both sides are respectively arranged with a setscrew nut 7, prevent spring perch 18 displacements, trigger spring 13 clamping stagnations, thereby prevention trigger mechanism 6 lost efficacy, and guaranteed safe in operation.
Embodiment six: be with the difference of previous embodiment, U-bar guide rail pulley 1 comprises back-up ring type U-bar guide rail pulley 21 and guiding grooved U-bar guide rail pulley 23, back-up ring type U-bar guide rail pulley 21 is arranged on the back side of lift core steel guide rail 12, on back-up ring type U-bar guide rail pulley 21, is provided with back-up ring 20; On guiding grooved U-bar guide rail pulley 23, be provided with guide groove 22; The back side of lift core steel guide rail 12 is stuck on the back-up ring 20 of back-up ring type U-bar guide rail pulley 21; Guiding grooved U-bar guide rail pulley 23 is arranged on lift core steel guide rail 12 leg sides, and the leg side of lift core steel guide rail 12 is stuck in the guide groove 22 of guiding grooved U-bar guide rail pulley 23; When there is falling accident, back-up ring type U-bar guide rail pulley 21 cooperatively interacts with guiding grooved U-bar guide rail pulley 23, block securely lift core steel guide rail 12 both sides, make falling protector on lift core steel guide rail 12, be difficult for overstepping the limit, guarantee that falling protector operates steadily on lift core steel guide rail 12, guarantee that falling protector reliable action is on lift core steel guide rail 12, by being stabilized in firmly on orbit of lift core steel guide rail 12, guarantee eccentric braking gear wheel 3 stop elevator craning cage reliably, prevent the generation of falling accident.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. be applicable to the instantaneous formula lift installation of an eccentric wheel type anti-falling safety device for U-bar guide rail, comprise seat board, eccentric braking gear wheel, U-bar guide rail pulley, catch gear, flip flop equipment, supporting seat and base; Two described eccentric braking gear wheels are symmetricly set on described seat board front side; Upper and lower two pairs of described U-bar guide rail pulleys are arranged on described seat board front side by adapter shaft; Lift core steel guide rail lays respectively between two pairs of described U-bar guide rail pulleys and two described eccentric braking gear wheels; Described seat board middle part is provided with waist hole; Described catch gear comprises the pivot shaft being set on described supporting seat, and the plane matching with described waist hole is offered in described pivot shaft both sides, and described pivot shaft is through described waist hole; It is characterized in that, also comprise the driving rack that is fixed on described support axial plane; The transmission gear that is arranged on described driving rack both sides and is meshed with described driving rack; With the spragging gear of the coaxial setting of described eccentric braking gear wheel, described spragging gear is meshed with transmission gear; Described seat board rear side is provided with described trigger mechanism, described trigger mechanism lower end is connected with described catch gear, described supporting seat is connected on described base, and described base is for being fixed on elevator craning cage by the instantaneous formula lift installation of eccentric wheel type anti-falling safety device.
2. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 1, is characterized in that: described trigger mechanism comprises the adjusting seat that is fixed on described seat board rear side; Be arranged on adjusting nut, spring lock block in described adjusting seat; The adjustment bolt matching with described adjusting nut; Be arranged on the spring perch on described pivot shaft; Be arranged on the triggering spring between described spring lock block and spring perch.
3. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 1, is characterized in that: described driving rack middle part is provided with waist hole.
4. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 3, is characterized in that: described driving rack middle part is provided with tooth bar pressure spring slot, and described tooth bar pressure spring slot is provided with tooth bar stage clip.
5. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 4, is characterized in that: described tooth bar stage clip two ends are respectively provided with a tooth bar press spring base.
6. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 1, it is characterized in that: described U-bar guide rail pulley comprises back-up ring type U-bar guide rail pulley and guiding grooved U-bar guide rail pulley, on described back-up ring type U-bar guide rail pulley, is provided with back-up ring; On described guiding grooved U-bar guide rail pulley, be provided with guide groove.
7. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 1, is characterized in that: between described pivot shaft rear end and supporting seat, be provided with holddown spring.
8. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 1, is characterized in that: described eccentric braking gear wheel and spragging gear are structure as a whole.
9. a kind of instantaneous formula lift installation of eccentric wheel type anti-falling safety device that is applicable to U-bar guide rail as claimed in claim 2, is characterized in that: described spring perch both sides are respectively arranged with setscrew nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458240.7U CN203419655U (en) | 2013-07-30 | 2013-07-30 | Eccentric wheel type instant lifting facility falling-prevention safety device suitable for U-steel guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458240.7U CN203419655U (en) | 2013-07-30 | 2013-07-30 | Eccentric wheel type instant lifting facility falling-prevention safety device suitable for U-steel guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203419655U true CN203419655U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320458240.7U Expired - Fee Related CN203419655U (en) | 2013-07-30 | 2013-07-30 | Eccentric wheel type instant lifting facility falling-prevention safety device suitable for U-steel guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203419655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370177A (en) * | 2014-11-21 | 2015-02-25 | 王少腾 | Anti-falling safety device with pinion and rack overload protection |
| CN105819299A (en) * | 2016-06-13 | 2016-08-03 | 湖南省双有机械有限公司 | Construction elevator |
-
2013
- 2013-07-30 CN CN201320458240.7U patent/CN203419655U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370177A (en) * | 2014-11-21 | 2015-02-25 | 王少腾 | Anti-falling safety device with pinion and rack overload protection |
| CN104370177B (en) * | 2014-11-21 | 2017-02-01 | 王少腾 | Anti-falling safety device with pinion and rack overload protection |
| CN105819299A (en) * | 2016-06-13 | 2016-08-03 | 湖南省双有机械有限公司 | Construction elevator |
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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: 20140205 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |