CN103523630B - Construction lifter cage roof fall safety caging device - Google Patents
Construction lifter cage roof fall safety caging device Download PDFInfo
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- CN103523630B CN103523630B CN201310526928.9A CN201310526928A CN103523630B CN 103523630 B CN103523630 B CN 103523630B CN 201310526928 A CN201310526928 A CN 201310526928A CN 103523630 B CN103523630 B CN 103523630B
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- cage
- limit switch
- roof fall
- extension rod
- standard knot
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Abstract
The invention discloses a kind of construction lifter cage roof fall safety caging device that real-time anti-roof fall protection can be provided in standard knot supernumerary segment installation or removal process, comprise the limit switch be arranged on construction elevator cage, the control circuit that this limit switch is elevated drive motor with cage is electrically connected, and described limit switch is positioned at the top of cage and keeps certain diff-H with cage; During cage upward movement, synchronous upwards the sliding on building hoist standard knot leg surface and keep in touch with leg surface of contact of this limit switch, once the contact that cage rises to limit switch departs from column, limit switch is triggered and cutting-off controlling circuit, makes cage stop rising.Anti-cage roof fall safety caging device of the present invention overcomes the deficiency of existing anti-roof fall safety protection facility, can eliminate the potential safety hazard that cage roof fall accident occurs in standard knot supernumerary segment installation or removal process.
Description
Technical field
The present invention relates to a kind of construction lifter cage roof fall safety caging device, for preventing the cage of building hoist from unrestrictedly rising finally to deviate from from top standard knot, safety misadventure occurring.
Background technology
In recent years, building hoist uses in building operation in a large number as vertical transportation machinery.Cage is the vehicle equipment in building hoist, its oad is large, Heavy Weight, be typically provided with two road guiding wheels, often group guiding wheels are made up of multiple track adjusting wheel and form guide apertures, each guide apertures coordinates with building hoist standard knot column respectively, thus carries out vertically-guided by column and guiding wheels to cage lifting.At present, building hoist installation process is roughly: 1) installation elevator standard knot on the ground, overlaps to form base altitude by weight-lifting equipment by the standard knot of some therebetween successively; 2) operate weight-lifting equipment and play cage, the guide apertures of the wheels that led by cage aims at respective standard joint column respectively, then operates cage and makes guiding wheels enter column from top to bottom, cage installation in position; 3) continue subsequent standards joint is installed, reach design height.
After building hoist arrives design height, cage roof fall safety caging device that the standard knot at its top must be set up defences, its effect prevents cage from unrestrictedly rising finally to deviate from from top standard knot, and safety misadventure occurs.Current anti-cage roof fall safety caging device generally comprises the three road safety protection facility arranged from the bottom to top, i.e. upper limit position switch device, limes superiors inhibiting device and the anti-risk head piece of mechanical type.When cage upwards runs, the limit switch in cage touches iron once what touch upper limit position switch device or limes superiors position device, and the control circuit of cage lifting drive motor disconnects, thus makes cage out of service; When upper limit position switch device or limes superiors inhibiting device all malfunctioning time, the top of top standard knot also has one anti-risk head piece of mechanical type, carries out mechanical collision stop roof fall by itself and cage.
It is generally acknowledged, after the above-mentioned three road safety protection facility of employing, anti-cage roof fall safety caging device has been enough to the safe in operation ensureing building hoist.But, the present inventor is but found by careful observation, still there is such potential safety hazard in current building hoist, that is: when in standard knot supernumerary segment installation or removal process, " standard knot at top " is actually dynamic change, when there is new top standard knot, this top standard knot may not installed anti-cage roof fall safety caging device.If just have people's maloperation cage to continue to rise (situation that such as operator is ignorant or careless and inadvertent) at such time point, then probably cause the safety misadventure of cage roof fall.
Summary of the invention
The present invention for above-mentioned potential safety hazard, will provide a kind of construction lifter cage roof fall safety caging device that can provide real-time anti-roof fall protection in standard knot supernumerary segment installation or removal process.
Construction lifter cage roof fall safety caging device of the present invention, comprise the limit switch be arranged on construction elevator cage, the control circuit that this limit switch is elevated drive motor with cage is electrically connected, and described limit switch is positioned at the top of cage and keeps certain diff-H with cage; During cage upward movement, synchronous upwards the sliding on building hoist standard knot leg surface and keep in touch with leg surface of contact of this limit switch, once the contact that cage rises to limit switch departs from column, limit switch is triggered and cutting-off controlling circuit, makes cage stop rising.
When using above-mentioned construction lifter cage roof fall safety caging device, when cage upward movement, as long as the contact of limit switch and building hoist standard knot leg surface are kept in touch, the then not limited switch cutoff of control circuit of cage lifting drive motor, still continues to drive cage to rise by hanging this cage lifting drive motor; Be positioned at the top of cage due to limit switch and keep certain diff-H with cage, therefore along with cage rising, the contact of limit switch certainly will depart from from leg surface prior to cage, at this moment, limit switch by cutting-off controlling circuit, thus makes cage stop rising, and prevents cage roof fall.As can be seen here, anti-cage roof fall safety caging device of the present invention overcomes the deficiency of existing anti-roof fall safety protection facility, can eliminate the potential safety hazard that cage roof fall accident occurs in standard knot supernumerary segment installation or removal process.
Below in conjunction with the drawings and specific embodiments, the present invention is described further.The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is construction lifter cage roof fall safety caging device of the present invention structural representation in use.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Detailed description of the invention
As shown in Figure 1, 2, the cage 2 that building hoist comprises multiple standard knot 1 and is arranged on standard knot 1, these standard knots 1 overlap to form required height successively, cage 2 rises along the column 1a on standard knot 1 or falls under the driving of cage lifting drive motor 5, thus workman or equipment are carried to the floor of corresponding height.Building hoist installation process is roughly: 1) installation elevator standard knot 1 on the ground, overlaps to form base altitude by weight-lifting equipment by the standard knot 1 of some therebetween successively; 2) operate weight-lifting equipment and play cage 2, the guide apertures of wheels of being led by cage 2 aims at respective standard joint column 1a respectively, then operating cage 2 makes guiding wheels enter column 1a from top to bottom, cage 2 installation in position (comprising the drive system that cage lifting drive motor 5 etc. is supporting); 3) continue subsequent standards joint 1 is installed, reach design height.Wherein, subsequent standards joint 1 preferably lifts above the standard knot 1 assembled by weight-lifting equipment (as tower crane) and then installs, but in some cases, building site such as, exceeded the hoisting depth of weight-lifting equipment without tower crane or building hoist height, at this moment, what just need to utilize cage 2 top to carry gets rid of pole-climbing 11(as Fig. 1) help the installation of subsequent standards joint 1.Concrete way utilizes the suspension hook got rid of in pole-climbing 11 to hang subsequent standards joint 1, then operate cage 2 to rise, during top close to the standard knot 1 that assembled, operation is got rid of pole-climbing 11 and is made it that subsequent standards joint 1 is winched to the top of assembling standard knot 1 again, thus the supernumerary segment completing standard knot 1 is further installed.The unloading process of standard knot 1 is just contrary, herein no longer superfluous words.In a word, the construction lifter cage roof fall safety caging device provided below is particularly useful for above-mentioned this utilization and gets rid of pole-climbing 11 when carrying out the supernumerary segment installation or removal of standard knot 1, cage 2 is provided to the situation of real-time anti-roof fall protection.
To this, as shown in Figure 1, 2, construction lifter cage roof fall safety caging device of the present invention comprises the limit switch 3 be arranged on construction elevator cage 2, the control circuit that this limit switch 3 and cage are elevated drive motor 5 is electrically connected, further, described limit switch 3 is positioned at the top of cage 2 and keeps certain diff-H with cage 2; During cage 2 upward movement, synchronous upwards the sliding on the surface at building hoist standard knot column 1a and keep in touch with column 1a surface of contact of this limit switch 3, once the contact that cage 2 rises to limit switch 3 departs from column 1a, limit switch 3 is triggered and cutting-off controlling circuit, makes cage 2 stop rising.
Embodiment 1
As shown in Figure 1, 2, a kind of mode driving cage 2 to carry out dipping and heaving on standard knot 1 is: the top of cage 2 is provided with one and erects and building hoist drive plate 6 for driving cage 2 to carry out dipping and heaving, and the lateral surface that described cage lifting drive motor 5 is arranged on this drive plate 6 drives and is positioned at the gear 10 be meshed with the tooth bar on building hoist standard knot 1 inside this drive plate 6.For this type of drive, the limit switch 3 of the present invention's above-mentioned construction lifter cage roof fall safety caging device to be arranged on this drive plate 6 and higher than gear 10 the most top inside drive plate 6.Because limit switch 3 to be arranged on this drive plate 6 and higher than gear 10 the most top inside drive plate 6, therefore, along with cage 2 rises, when the contact of limit switch 3 departs from from column 1a surface, drive plate 6 inboard gear 10 all still keeps engaging with the tooth bar on building hoist standard knot 1, this makes it possible to ensure that cage 2 stops rapidly, guarantee safety.
Embodiment 2
As shown in Figure 1, 2, the mode that driving cage 2 carries out dipping and heaving on standard knot 1 is identical with embodiment 1, namely the top of cage 2 is provided with one and erects and building hoist drive plate 6 for driving cage 2 to carry out dipping and heaving, and the lateral surface that described cage lifting drive motor 5 is arranged on this drive plate 6 drives and is positioned at the gear 10 be meshed with the tooth bar on building hoist standard knot 1 inside this drive plate 6.As different from Example 1, limit switch 3 is arranged on above cage 2 by extension rod 4, and the lower end of extension rod 4 is arranged on drive plate 6, the limit switch 3 described in the installation of upper end.Owing to being provided with extension rod 4, increase the safety distance between limit switch 3 and cage 2, the inertia rising triggering rear cage 2 to limit switch 3 more fully cushions, and further increases safety.By arranging extension rod 4, the diff-H between gear 10 the most top inside limit switch 3 and drive plate 6 is best >=1.8m, even if then trigger limit switch 3 also can ensure cage 2 safety stop when cage 2 comparatively fast rises.
For the ease of the Assembly &Disassembly of extension rod 4 with drive plate 6, limit switch 3, as shown in Figure 2, described drive plate 6 is fixed with an extension rod mount pad 8, the lower end of extension rod 4 is threaded connection part and is connected with extension rod mount pad 8; Meanwhile, the upper end of extension rod 4 is fixed with a limit switch adapter plate 9, and the base portion of limit switch 3 is threaded connection part and is connected with limit switch adapter plate 9.For ease of extension rod 4 manufacture and keep its intensity, described extension rod 4 preferably adopts cross-sectional plane to be the tubing of rectangle.In addition, extension rod mount pad 8 can be designed to U-shaped plate, and the lower end of extension rod 4 to be included in this U-shaped plate and to be fixed by the threaded connector through them, improves the steadiness that extension rod 4 is connected with extension rod mount pad 8.
Embodiment 3
As Fig. 1,2, described limit switch 3 is arranged on above cage 2 by extension rod 4, and the lower end of extension rod 4 is arranged on (specifically at the top place of the sidewall of cage 2) on cage 2, and upper end is provided with described limit switch 3.In addition, below extension rod 4 being positioned at described limit switch 3 is provided with auxiliary stopper switch (not shown), the control circuit that auxiliary stopper switch is elevated drive motor 5 with cage is electrically connected, during cage 2 upward movement, synchronous upwards the sliding on the surface at building hoist standard knot column 1a and keep in touch with column 1a surface of contact of this auxiliary stopper switch, if when the contact that cage 2 rises to this auxiliary stopper switch departs from column 1a, auxiliary stopper switch is triggered and cutting-off controlling circuit, makes cage 2 stop rising.Auxiliary stopper switch when limit switch 3 lost efficacy, can stop cage 2 to continue to rise, can further improve the validity of construction lifter cage roof fall safety caging device.
Claims (3)
1. construction lifter cage roof fall safety caging device, comprise the limit switch (3) be arranged on construction elevator cage (2), the control circuit that this limit switch (3) and cage are elevated drive motor (5) is electrically connected, and it is characterized in that: described limit switch (3) is positioned at the top of cage (2) and keeps certain diff-H with cage (2), during cage (2) upward movement, synchronous upwards the sliding on the surface at building hoist standard knot column (1a) and keep in touch with column (1a) surface of contact of this limit switch (3), once the contact that cage (2) rises to limit switch (3) departs from column (1a), limit switch (3) is triggered and cutting-off controlling circuit, makes cage (2) stop rising, the top of cage (2) is provided with one and erects and building hoist drive plate (6) for driving cage (2) to carry out dipping and heaving, and the lateral surface that described cage lifting drive motor (5) is arranged on this drive plate (6) drives the gear (10) being positioned at this drive plate (6) inner side and being meshed with the tooth bar on building hoist standard knot, it is upper and higher than the most top gear (10) in drive plate (6) inner side that described limit switch (3) is arranged on this drive plate (6), described drive plate (6) is fixed with an extension rod mount pad (8), the lower end of extension rod (4) is threaded connection part and is connected with extension rod mount pad (8), the upper end of extension rod (4) is fixed with a limit switch adapter plate (9), and the base portion of limit switch (3) is threaded connection part and is connected with limit switch adapter plate (9), diff-H >=1.8m between the most top gear (10) of described limit switch (3) and drive plate (6) inner side, below extension rod (4) being positioned at described limit switch (3) is provided with auxiliary stopper switch, the control circuit that auxiliary stopper switch and cage are elevated drive motor (5) is electrically connected, during cage (2) upward movement, synchronous upwards the sliding on the surface at building hoist standard knot column (1a) and keep in touch with column (1a) surface of contact of this auxiliary stopper switch, if when the contact that cage (2) rises to this auxiliary stopper switch departs from column (1a), auxiliary stopper switch is triggered and cutting-off controlling circuit, cage (2) is made to stop rising.
2. construction lifter cage roof fall safety caging device as claimed in claim 1, it is characterized in that: described extension rod mount pad (8) is U-shaped plate, then the lower end of extension rod (4) to be included in this U-shaped plate and to be fixed by the threaded connector through them.
3. construction lifter cage roof fall safety caging device as claimed in claim 1, is characterized in that: described extension rod (4) adopts cross-sectional plane to be the tubing of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526928.9A CN103523630B (en) | 2013-10-30 | 2013-10-30 | Construction lifter cage roof fall safety caging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526928.9A CN103523630B (en) | 2013-10-30 | 2013-10-30 | Construction lifter cage roof fall safety caging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103523630A CN103523630A (en) | 2014-01-22 |
| CN103523630B true CN103523630B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310526928.9A Active CN103523630B (en) | 2013-10-30 | 2013-10-30 | Construction lifter cage roof fall safety caging device |
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| CN (1) | CN103523630B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340795B (en) * | 2014-09-09 | 2017-01-11 | 中联重科股份有限公司 | Added-section safety protection control system, method and device as well as construction hoist |
| CN105970897B (en) * | 2016-07-01 | 2018-10-26 | 中船黄埔文冲船舶有限公司 | A kind of self-elevating drilling platform and its spud leg lift limit switch |
| CN106097872B (en) * | 2016-08-22 | 2022-04-01 | 浙江大学 | Automatic control circulating water tank for simulating instantaneous dam break |
| FR3090610B1 (en) | 2018-12-21 | 2021-08-13 | Lombard Ind | Anti-fall device for motorized lift with rack and pinion drive |
| CN111320113B (en) * | 2020-03-27 | 2023-08-04 | 安徽丰海起重设备制造有限公司 | Debugging table and debugging method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB235287A (en) * | 1924-03-10 | 1925-06-10 | Henry Havelock Logan | Brake operating mechanism for hoists and the like |
| CN201240731Y (en) * | 2008-07-01 | 2009-05-20 | 浙江省建设机械集团有限公司 | Anti-top-collision protector of construction elevator |
| CN201914796U (en) * | 2010-12-21 | 2011-08-03 | 赵敬贤 | Double-insurance anti-falling safety device and construction lifter using the same |
| CN202321859U (en) * | 2011-10-21 | 2012-07-11 | 中联重科股份有限公司 | Anti-over-hoisting device of elevator and elevator |
| CN203513020U (en) * | 2013-10-30 | 2014-04-02 | 成都市第二建筑工程公司 | Safe limiting device for preventing puking of cage of building hoist |
-
2013
- 2013-10-30 CN CN201310526928.9A patent/CN103523630B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB235287A (en) * | 1924-03-10 | 1925-06-10 | Henry Havelock Logan | Brake operating mechanism for hoists and the like |
| CN201240731Y (en) * | 2008-07-01 | 2009-05-20 | 浙江省建设机械集团有限公司 | Anti-top-collision protector of construction elevator |
| CN201914796U (en) * | 2010-12-21 | 2011-08-03 | 赵敬贤 | Double-insurance anti-falling safety device and construction lifter using the same |
| CN202321859U (en) * | 2011-10-21 | 2012-07-11 | 中联重科股份有限公司 | Anti-over-hoisting device of elevator and elevator |
| CN203513020U (en) * | 2013-10-30 | 2014-04-02 | 成都市第二建筑工程公司 | Safe limiting device for preventing puking of cage of building hoist |
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| CN103523630A (en) | 2014-01-22 |
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Address after: No.30, Section 1, Fuqing Road, Jinniu District, Chengdu, Sichuan 610081 Patentee after: CHENGDU SECOND CONSTRUCTION ENGINEERING Co.,Ltd. OF CDCEG Address before: No.30, Section 1, Fuqing Road, Jinniu District, Chengdu, Sichuan 610081 Patentee before: CHENGDU NO.2 CONSTRUCTION ENGINEERING Co. |
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| CP01 | Change in the name or title of a patent holder |