CN102493637B - Pre-tightening and protecting linkage device for anti-dropping wedge of scaffold - Google Patents
Pre-tightening and protecting linkage device for anti-dropping wedge of scaffold Download PDFInfo
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- CN102493637B CN102493637B CN201110405901.5A CN201110405901A CN102493637B CN 102493637 B CN102493637 B CN 102493637B CN 201110405901 A CN201110405901 A CN 201110405901A CN 102493637 B CN102493637 B CN 102493637B
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Abstract
The invention discloses a pre-tightening and protecting linkage device for an anti-dropping wedge of a scaffold. The anti-dropping wedge is correspondingly matched with one or two anti-dropping linkage levers connected to a pre-tightening delay protection device and a linkage pull rope, and the other end of the linkage pull rope is connected to a cross shaft; the middle of each anti-dropping linkage lever is provided with a support, and the anti-dropping linkage lever rotates around the support; two horizontal levers of a wall-attached support frame are correspondingly provided with sliding chutes in which two ends of the cross shaft are arranged; the cross shaft is provided with a steel rope pulley through which a steel rope passes; the cross shaft is provided with a pre-tightening spring; and the wall-attached support frame is respectively and correspondingly provided with a guide pulley relative to the upper side and the lower side of the steel rope pulley. In the invention, a structure that the anti-dropping wedge is matched with a main vertical frame is adopted to ensure that the clamping force can be increased when the main frame drops downwards, and the main frame is clamped more tightly to be stopped to drop, so that a very good safety protection function is achieved; and the anti-dropping wedge can be conveniently and reliably lifted to loosen the main frame so that the main frame can drop in a controlled state.
Description
Technical field
The present invention relates to a kind of accessory structure of integral lifting scaffold, especially at integral lifting scaffold, when rising or decline, drive the pretension of the anti-dropping wedge of scaffold that anti-falling wedge block and vertical main framework disengage to protect linkage.
Background technology
At building field, especially middle-high building, in construction, extensively adopt integral lifting scaffold (climbing frame), the setting that matches with anti-tilt device and anti-drop device of its vertical main framework, prevent that vertical main framework from tilting (deflection) and down falling, prevent that integral lifting scaffold from producing security incident.In prior art, in name, be called " attachment type raise scaffold ", application number is in 00222196.6 utility model patent file, disclose and a kind ofly by monolithic, welded, between sheet and sheet, use the main frame of sizing chip trussed construction and the scaffold of the paired sizing chip trussed construction using of bolted on connection, and with supporting and anti-fall anti-tilt device and wall connecting a plurality of adhering to, and electric block, the integral lifting scaffold that anti-fall push rod etc. form, its anti-fall push rod relies on the elastic force of back-moving spring, top is stuck in the anti-fall tooth of main frame guide rail side, anti-fall push rod prevents that by withstanding in anti-fall tooth main frame guide rail is toward lower slider, prevent that whole scaffold from down falling.The deficiency of this kind of scaffold, first be to adopt anti-fall push rod to withstand in the anti-fall tooth of main frame guide rail and limit (preventing) main frame and fall, to having relatively high expectations of anti-fall tooth, anti-fall push rod, in particular cases because of anti-fall tooth or the fracture of anti-fall push rod, or anti-fall push rod can not reset in time and withstand anti-fall tooth and whole scaffold is down fallen, produce security incident; Secondly, when main frame guide rail rises or declines under electric block drives, while especially declining, anti-fall push rod shifts out inconvenience in anti-fall tooth, troublesome poeration; Again, due to high-rise, super highrise building more and more, and the performance of integral lifting scaffold etc. has been proposed to requirements at the higher level, need to be further improved the structure of prior art, could meet its security performance, could adapt to the needs of safe construction.
Summary of the invention
The present invention is directed to the integral lifting scaffold aforementioned deficiency in the morning of prior art, provide that a kind of security performance is better, the pretension of the anti-dropping wedge of scaffold that adapts to high-rise, construction of super highrise building needs is protected linkage.
Technical scheme of the present invention, the pretension protection linkage of anti-dropping wedge of scaffold, the vertical main framework, attached wall supporting frame, anti-tip wheel, anti-falling wedge block, the anti-dumping that comprise integral lifting scaffold push against wheel and installation shaft, anti-tip wheel and anti-dumping that installation shaft by is separately arranged on attached wall supporting frame push against the both sides that wheel is arranged on vertical main framework, vertical main framework is from passing between the two, anti-falling wedge block is arranged between vertical main framework and anti-tip wheel, and insert from above between vertical main framework and anti-tip wheel at the tip of the anti-falling wedge block of wedge shape; It is characterized in that: on anti-falling wedge block, correspondence sets one or two anti-fall gangbar, the other end of anti-fall gangbar is connected to by pretension delay protection device on one end of interlock stay cord, and the other end of interlock stay cord is connected on transverse axis; The centre of anti-fall gangbar, is provided with bearing, and anti-fall gangbar is rotated around bearing; On two horizon bars of attached wall supporting frame, correspondence is provided with chute, and the two ends of transverse axis are all arranged in chute, can in chute, move left and right;
On transverse axis, be provided with fleet wheel, steel cable is through fleet wheel; On transverse axis, be provided with preloading spring;
On attached wall supporting frame, with respect to fleet wheel above and below, each correspondence arranges a leading block, steel cable by upper and lower two leading blocks change angle after, be connected with fleet wheel.
Pretension delay protection device, consists of the upper bush being slidably matched and lower sleeve, is provided with upper spring in upper bush, is provided with the next spring in lower sleeve, is provided with dividing plate on upper bush, and dividing plate separates upper spring and the next spring; One end of interlock stay cord is connected with upper spring through the hole of dividing plate, and anti-fall gangbar is connected with upper bush.
Further feature is: one end of described anti-fall gangbar is to be connected on anti-falling wedge block by pin.
Two ends at transverse axis are all provided with preloading spring.
Top at pin arranges spring, and anti-fall gangbar is connected with pin by spring.
Between upper bush and lower sleeve, be equipped with sleeve chute, the pin being connected on upper bush is equipped with in sleeve chute.
The pretension protection linkage of anti-dropping wedge of scaffold of the present invention, with respect to prior art, has following features:
1, the structure that adopts anti-falling wedge block to coordinate with vertical main framework, increases clamping force at the main frame Shi Gengneng that down falls, and clamps tightlier main frame is stopped falling, and plays extraordinary safety protection function.
2, scaffold, when declining, can facilitate, reliably anti-falling wedge block promoted and unclamp main frame, and main frame can decline under slave mode.
3, the elastic force of two preloading springs in left and right, acts on anti-falling wedge block by the anti-fall gangbar of transverse axis and two of left and right, makes anti-fall eccentric wheel and vertical main framework keep good contacting, and also can improve safety.
4, can adapt to high level, construction of super highrise building needs.
Accompanying drawing explanation
Fig. 1 is structure top view of the present invention;
Fig. 2 is structure side view of the present invention;
Fig. 3 is structure sectional view of the present invention;
Fig. 4 is the anti-fall pretension delay protection device of the present invention structure sectional view;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is that scaffold of the present invention is in anti-falling protection structure graph;
Fig. 7 is that scaffold of the present invention is in decline status architecture schematic diagram.
The specific embodiment
As Fig. 1, 2, in 3, the pretension protection linkage of anti-dropping wedge of scaffold of the present invention, the vertical main framework 1 that comprises integral lifting scaffold, attached wall supporting frame 2, anti-tip wheel 3, anti-falling wedge block 4, anti-dumping pushes against wheel 5 and installation shaft, vertical main framework 1 is arranged on anti-tip wheel 3 and anti-dumping pushes against between wheel 5, the anti-tip wheel 3 being arranged on attached wall supporting frame 2 by installation shaft pushes against with anti-dumping the both sides that wheel 5 is arranged on vertical main framework 1, vertical main framework 1 is from passing between the two, anti-falling wedge block 4 is arranged between vertical main framework 1 and anti-tip wheel 3, insert from above between vertical main framework 1 and anti-tip wheel 3 at the tip of the anti-falling wedge block 4 of wedge shape, when vertical main framework 1 moves down, anti-falling wedge block 4 is by vertical main framework 1 clamping, attached wall supporting frame 2 is arranged on the body of wall of building.
Improvement of the present invention, is that correspondence sets one or two anti-fall gangbar 7 on anti-falling wedge block 4, and in figure, one end of anti-fall gangbar 7 is to be connected on anti-falling wedge block 4 by pin 8, for stress balance, is provided with two anti-fall gangbar 7 on anti-falling wedge block 4; The other end of anti-fall gangbar 7 is connected to respectively turnably by pretension delay protection device 20 on one end of interlock stay cord 9, by pretension delay protection device 20, anti-fall gangbar 7 is connected with one end of interlock stay cord 9; The other end of two interlock stay cords 9 is connected on transverse axis 10; The centre of anti-fall gangbar 7, is provided with bearing 11, and anti-fall gangbar 7 is rotated around bearing 11, does lever motion; At two horizon bar 12(of attached wall supporting frame 2 square steel pipe normally) upper, correspondence is provided with chute 13, and the two ends of transverse axis 10 are all arranged in chute 13, can in chute 13, move left and right certain distance.On transverse axis 10, be provided with fleet wheel 14, steel cable 15, through fleet wheel 14, can drive transverse axis 10 interior to illustrated left to movement at chute 13 when steel cable 15 is stressed.On transverse axis 10, be provided with preloading spring, preloading spring is to 10 1 spring forces of transverse axis, make transverse axis 10 be subject to the illustrated active force to right, this active force acts on anti-falling wedge block 4 by interlock stay cord 9, anti-fall gangbar 7, anti-falling wedge block 4 and vertical main framework 1 are kept in touch under pressure state, clamping action power is provided.
In figure, transverse axis 10 is in order to keep uniform stress, and in order to increase safety, at the two ends of transverse axis 10, is all provided with preloading spring.
In order to guarantee the good fit relation between steel cable 15 and fleet wheel 14, make the component (acting on the power on fleet wheel 14) of the horizontal direction of steel cable 15 keep stable, and can drive transverse axis 10 to move by fleet wheel 14, on attached wall supporting frame 2, with respect to fleet wheel 14 above and below, each correspondence arranges a leading block 17, two leading blocks 17 are symmetrical arranged with respect to fleet wheel 14, steel cable 15 changes after angle by upper and lower two leading blocks 17, be connected with fleet wheel 14, guarantee on fleet wheel 14, the steel cable 15 of hypomere has identical angle of inclination, the component with larger horizontal direction.
One end of anti-fall gangbar 7 is to be connected on anti-falling wedge block 4 by pin 8, on the top of pin 8, spring 18 is set, and anti-fall gangbar 7 is connected with pin 8 by spring 18.Can play cushioning effect like this, prevent that anti-fall gangbar 7 is pulled off under larger active force.
Pretension delay protection device 20 of the present invention, can further cushion the active force that anti-fall gangbar 7 is subject to, with spring elongate or shorten cushioning effect power, prevent that the larger torque producing suddenly from destroying anti-fall gangbar 7.The two ends of protective device 20 are connected with interlock stay cord 9 with anti-fall gangbar 7 respectively, by the upper bush 21 being slidably matched and lower sleeve 22, formed, in upper bush 21, be provided with upper spring 23, in lower sleeve 22, be provided with the next spring 24, on upper bush 21, be provided with dividing plate 25, dividing plate 25 separates upper spring 23 and the next spring 24, is arranged between upper spring 23 and the next spring 24; One end of interlock stay cord 9 is connected with upper spring 23 through the hole of dividing plate 25, and anti-fall gangbar 7 is connected with upper bush 21; Between upper bush 21 and lower sleeve 22, be equipped with sleeve chute 26, the pin 27 being connected on upper bush 21 is equipped with in sleeve chute 26; When pin 27 slides up and down in sleeve chute 26, between upper bush 21 and lower sleeve 22, produce sliding motion.Pretension delay protection device 20 is by bolt hole 28, and fitted bolt is installed, can be arranged on attached wall supporting frame 2, or on body of wall.
The operating principle of pretension delay protection device 20: when interlock stay cord 9 is subject to active force, first act on the upper spring 23 in upper bush 21, upper spring 23 extends; When upper spring 23 is elongated to the position of dividing plate 25, can not extend again, and by force transmission to dividing plate 25; Dividing plate 25 drives upper bush 21 to move down, and overcomes the elastic force of the next spring 24, and now upper bush 21 is interior toward lower slider at lower sleeve 22; When upper bush 21 is during in the interior slip of lower sleeve 22, just drive anti-fall gangbar 7 to rotate, anti-fall gangbar 7 produces action, acts on anti-falling wedge block 4.
The course of work of the present invention, integral lifting scaffold is under normal operating condition, the preloading spring at transverse axis 10 two ends is to transverse axis 10 active forces, this active force acts on anti-falling wedge block 4 through transverse axis 10, interlock stay cord 9, anti-fall gangbar 7, anti-falling wedge block 4 and vertical main framework 1 are kept in touch under pressure state, clamping action power is provided, and assurance integral lifting scaffold is normally worked.When integral lifting scaffold rises under tackles drives, by artificial or mechanical device, pull the upper end of steel cable 15(steel cable or lower end can be connected on attached wall supporting frame 2), make the stressed fleet wheel 14 that passes through of steel cable 15 drive transverse axis 10 to illustrated left to movement, by interlock stay cord 9, anti-fall gangbar 7, drive anti-falling wedge block 4 to move to illustrated counter clockwise direction, come off and contact with vertical main framework 1, vertical main framework 1 is declined smoothly.
Claims (5)
1. the pretension of anti-dropping wedge of scaffold is protected linkage, the vertical main framework (1) that comprises integral lifting scaffold, attached wall supporting frame (2), anti-tip wheel (3), anti-falling wedge block (4), anti-dumping pushes against wheel (5) and installation shaft, the anti-tip wheel (3) that installation shaft by is separately arranged on attached wall supporting frame (2) pushes against with anti-dumping the both sides that wheel (5) is arranged on vertical main framework (1), vertical main framework (1) is from passing between the two, anti-falling wedge block (4) is arranged between vertical main framework (1) and anti-tip wheel (3), insert from above between vertical main framework (1) and anti-tip wheel (3) at the tip of the anti-falling wedge block of wedge shape (4), it is characterized in that: in the upper correspondence of anti-falling wedge block (4), set one or two anti-fall gangbar (7), the other end of anti-fall gangbar (7) is connected to by pretension delay protection device (20) on one end of interlock stay cord (9), and the other end of interlock stay cord (9) is connected on transverse axis (10), the centre of anti-fall gangbar (7), is provided with bearing (11), and anti-fall gangbar (7) is rotated around bearing (11), two horizon bars (12) at attached wall supporting frame (2) are upper, and correspondence is provided with chute (13), and the two ends of transverse axis (10) are all arranged in chute (13), can in chute (13), move left and right,
Upper at transverse axis (10), be provided with fleet wheel (14), steel cable (15) is through fleet wheel (14); Upper at transverse axis (10), be provided with preloading spring;
Upper at attached wall supporting frame (2), with respect to fleet wheel (14) above and below, each correspondence arranges a leading block (17), steel cable (15) by upper and lower two leading blocks (17) change angle after, be connected with fleet wheel (14).
Described pretension delay protection device (20), by the upper bush being slidably matched (21) and lower sleeve (22), formed, in upper bush (21), be provided with upper spring (23), in lower sleeve (22), be provided with the next spring (24), on upper bush (21), be provided with dividing plate (25), dividing plate (25) separates upper spring (23) and the next spring (24); One end of interlock stay cord (9) is connected with upper spring (23) through the hole of dividing plate (25), and anti-fall gangbar (7) is connected with upper bush (21).
2. the pretension of anti-dropping wedge of scaffold according to claim 1 protection linkage, is characterized in that: one end of described anti-fall gangbar (7) is to be connected on anti-falling wedge block (4) by pin (8).
3. the pretension of anti-dropping wedge of scaffold according to claim 1 and 2 protection linkage, is characterized in that: the two ends at transverse axis (10) are all provided with preloading spring.
4. the pretension of anti-dropping wedge of scaffold according to claim 2 protection linkage, is characterized in that: on the top of pin (8), spring (18) is set, anti-fall gangbar (7) is connected with pin (8) by spring (18).
5. according to the pretension protection linkage of the anti-dropping wedge of scaffold described in claim 1,2 or 4; it is characterized in that: between upper bush (21) and lower sleeve (22); be equipped with sleeve chute (26), the pin (27) being connected on upper bush (21) is equipped with in sleeve chute (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405901.5A CN102493637B (en) | 2011-12-08 | 2011-12-08 | Pre-tightening and protecting linkage device for anti-dropping wedge of scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405901.5A CN102493637B (en) | 2011-12-08 | 2011-12-08 | Pre-tightening and protecting linkage device for anti-dropping wedge of scaffold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102493637A CN102493637A (en) | 2012-06-13 |
| CN102493637B true CN102493637B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110405901.5A Active CN102493637B (en) | 2011-12-08 | 2011-12-08 | Pre-tightening and protecting linkage device for anti-dropping wedge of scaffold |
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| Country | Link |
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| CN (1) | CN102493637B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046735B (en) * | 2013-02-07 | 2015-02-18 | 朱新伟 | Reinforcing fastener of anti-collapse bracket |
| CN112610008B (en) * | 2021-01-19 | 2022-06-10 | 达州市建设工程有限公司 | Anti-falling device of building element for building construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB296262A (en) * | 1928-02-07 | 1928-08-30 | Francis Marion Aycock | Improvements in and relating to scaffold jacks |
| US3797608A (en) * | 1971-03-26 | 1974-03-19 | Pomagalski Sa | Scaffolding winch |
| CN201217939Y (en) * | 2008-06-30 | 2009-04-08 | 上海市第七建筑有限公司 | Puncturing type mechanical anti-dropping locking device |
| CN201695665U (en) * | 2009-12-31 | 2011-01-05 | 广厦重庆第一建筑(集团)有限公司 | Attached type lifting scaffold inclining and falling preventer |
| CN101948059A (en) * | 2010-08-31 | 2011-01-19 | 四川华山建筑有限公司 | Anti-dropping device of lifting equipment |
-
2011
- 2011-12-08 CN CN201110405901.5A patent/CN102493637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB296262A (en) * | 1928-02-07 | 1928-08-30 | Francis Marion Aycock | Improvements in and relating to scaffold jacks |
| US3797608A (en) * | 1971-03-26 | 1974-03-19 | Pomagalski Sa | Scaffolding winch |
| CN201217939Y (en) * | 2008-06-30 | 2009-04-08 | 上海市第七建筑有限公司 | Puncturing type mechanical anti-dropping locking device |
| CN201695665U (en) * | 2009-12-31 | 2011-01-05 | 广厦重庆第一建筑(集团)有限公司 | Attached type lifting scaffold inclining and falling preventer |
| CN101948059A (en) * | 2010-08-31 | 2011-01-19 | 四川华山建筑有限公司 | Anti-dropping device of lifting equipment |
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| Publication number | Publication date |
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| CN102493637A (en) | 2012-06-13 |
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Address after: No. 1 West Road 400084 Dadukou District of Chongqing Applicant after: China Metallurgical Construction Engineering Group Co., Ltd. Address before: Jiulongpo Shi Pingqiao street 400050 Chongqing City No. 1 Applicant before: China Metallurgical Construction Engineering Group Co., Ltd. |
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