CN102493637A - 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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- CN102493637A CN102493637A CN2011104059015A CN201110405901A CN102493637A CN 102493637 A CN102493637 A CN 102493637A CN 2011104059015 A CN2011104059015 A CN 2011104059015A CN 201110405901 A CN201110405901 A CN 201110405901A CN 102493637 A CN102493637 A CN 102493637A
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- fall
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- gangbar
- wedge
- wheel
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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 when rising or descend, drive the pretension protection linkage of the anti-fall voussoir of scaffold that anti-fall voussoir and vertical main frame disengage at integral lifting scaffold.
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 frame prevents that vertical main frame from tilting (deflection) and down fall, and prevents that integral lifting scaffold from producing security incident.In the prior art; Be called " attachment type raise scaffold ", application number in name and be in 00222196.6 the utility model patent file; Disclose a kind of by between monolithic welding, sheet and the sheet with the scaffold of the main frame of the typing chip trussed construction of bolted on connection and the typing chip trussed construction that uses in pairs; And with supporting and anti-fall anti-tilt device is connected with body of wall a plurality of adhering to; And the integral lifting scaffold formed such as electric block, anti-fall push rod, its anti-fall push rod relies on the elastic force of back-moving spring, and the top is stuck in the anti-fall tooth of main frame guide rail side; Anti-fall push rod prevents in the anti-fall tooth that through withstanding on the main frame guide rail from toward lower slider, preventing that whole scaffold from down falling.The deficiency of this kind scaffold; At 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 the fracture of anti-fall tooth or anti-fall push rod, perhaps anti-fall push rod can not in time reset and withstand anti-fall tooth and whole scaffold is down fallen, and produces security incident; Secondly, when the main frame guide rail rose under electric block drives or descends, when especially descending, anti-fall push rod shifted out inconvenience in anti-fall tooth, troublesome poeration; Once more, because high-rise, super highrise building more and more, and the performance of integral lifting scaffold etc. has been proposed requirements at the higher level, need prior art constructions further be improved, and could satisfy 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-fall voussoir 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 the anti-fall voussoir of scaffold; The vertical main frame, attached wall supporting frame, anti-tip wheel, anti-fall wedge that comprises integral lifting scaffold is fast, anti-dumping pushes against wheel and installation shaft; Anti-tip wheel and anti-dumping that installation shaft through separately is arranged on the attached wall supporting frame push against the both sides that wheel is arranged on vertical main frame; Vertical main frame is from pass between the two, and anti-fall wedge is installed between vertical main frame and the anti-tip wheel soon, and the fast tip of the anti-fall wedge of wedge shape is between vertical main frame of top insertion and the anti-tip wheel; It is characterized in that: correspondence sets one or two anti-fall gangbar on anti-fall wedge is fast, and the other end of anti-fall gangbar is connected through the pretension delay protection device on the end of interlock stay cord, and the other end of interlock stay cord is connected on the 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 all are arranged in the chute, can be in chute move left and right;
On transverse axis, be provided with fleet wheel, steel cable passes fleet wheel; On transverse axis, be provided with preloading spring;
On the attached wall supporting frame, with respect to the top of fleet wheel with below, each correspondence is provided with a leading block, steel cable through upper and lower two leading blocks change angle after, be connected with fleet wheel.
The pretension delay protection device is made up of upper bush that is slidingly matched and lower sleeve, is provided with upper spring in the upper bush, is provided with the next spring in the lower sleeve, and upper bush is provided with dividing plate, and dividing plate separates upper spring and the next spring; The hole that one end of interlock stay cord passes dividing plate is connected with upper spring, and anti-fall gangbar is connected with upper bush.
Further characteristic is: an end of said anti-fall gangbar be through pin be connected anti-fall wedge fast on.
Two ends at transverse axis all are provided with preloading spring.
Top at pin is provided with spring, and anti-fall gangbar is connected with pin through spring.
Between upper bush and lower sleeve, be equipped with the sleeve chute, the pin that is connected on the upper bush is equipped with in the sleeve chute.
The pretension protection linkage of the anti-fall voussoir of scaffold of the present invention with respect to prior art, has following characteristics:
1, the structure that adopts anti-fall voussoir to cooperate with vertical main frame, in the main frame Shi Gengneng increase clamping force of down falling, clamping tightlier stops falling main frame, plays extraordinary security protection effect.
2, scaffold is when descending, and can make things convenient for, reliably anti-fall voussoir promoted and unclamp main frame, and main frame can descend under slave mode.
3, the elastic force of two preloading springs about, through transverse axis with about two anti-fall gangbar act on the anti-fall voussoir, make anti-fall eccentric wheel and vertical main frame keep excellent contact, also can improve safety.
4, can adapt to high level, construction of super highrise building needs.
Description of drawings
Fig. 1 is a structure vertical view of the present invention;
Fig. 2 is a structure side view of the present invention;
Fig. 3 is a structure sectional view of the present invention;
Fig. 4 is the anti-fall pretension delay protection device of a 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 the anti-falling protection structure graph;
Fig. 7 is that scaffold of the present invention is in decline status architecture sketch map.
The specific embodiment
In Fig. 1,2,3; The pretension protection linkage of the anti-fall voussoir of scaffold of the present invention; Comprise that vertical main frame 1, attached wall supporting frame 2, anti-tip wheel 3, the anti-fall wedge of integral lifting scaffold is fast 4, anti-dumping pushes against wheel 5 and installation shaft 6; Vertical main frame 1 is arranged on anti-tip wheel 3 and anti-dumping pushes against between the wheel 5, and the anti-tip wheel 3 that is arranged on the attached wall supporting frame 2 through installation shaft 6 pushes against the both sides that wheel 5 is arranged on vertical main frame 1 with anti-dumping, and vertical main frame 1 is from pass between the two; Anti-fall wedge fast 4 is installed between vertical main frame 1 and the anti-tip wheel 3, and the tip of the anti-fall wedge fast 4 of wedge shape is between vertical main frame 1 of top insertion and the anti-tip wheel 3; When vertical main frame 1 moved down, anti-fall wedge fast 4 was with vertical main frame 1 chucking; Attached wall supporting frame 2 is installed 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-fall wedge fast 4, and an end of anti-fall gangbar 7 is 8 to be connected on the anti-fall wedge fast 4 through pinning among the figure, for stress balance, on anti-fall wedge fast 4, is provided with two anti-fall gangbar 7; The other end of anti-fall gangbar 7 is connected respectively through pretension delay protection device 20 on the end of interlock stay cord 9 turnably, through pretension delay protection device 20 end of anti-fall gangbar 7 with interlock stay cord 9 is connected; The other end of two interlock stay cords 9 is connected on the 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; On two horizon bars 12 (normally square steel pipe) of attached wall supporting frame 2, correspondence is provided with chute 13, and the two ends of transverse axis 10 all are arranged in the chute 13, can be in chute 13 the move left and right certain distance.On transverse axis 10, be provided with fleet wheel 14, steel cable 15 passes fleet wheel 14, when steel cable 15 is stressed, can drive transverse axis 10 in chute 13 to illustrated left to moving.On transverse axis 10; Be provided with preloading spring 16; Preloading spring 16 is given 10 1 spring forces of transverse axis, makes transverse axis 10 receive the active force of illustrated direction to the right, and this active force acts on the anti-fall wedge fast 4 through interlock stay cord 9, anti-fall gangbar 7; Anti-fall wedge fast 4 and vertical main frame 1 are kept in touch under pressure state, clamping action power is provided.
Among the figure, transverse axis 10 is in order to keep uniform stress, and in order to increase safety, all is provided with preloading spring 16 at the two ends of transverse axis 10.
In order to guarantee the good fit relation between steel cable 15 and the fleet wheel 14, make the component (acting on the power on the fleet wheel 14) of the horizontal direction of steel cable 15 keep stable, and can move through fleet wheel 14 drive transverse axis 10; On attached wall supporting frame 2; With respect to the top of fleet wheel 14 with below, each correspondence is provided with 17, two leading blocks 17 of a leading block and is symmetrical set with respect to fleet wheel 14; Steel cable 15 is through after two leading blocks 17 change angle up and down; Be connected with fleet wheel 14, guarantee that the steel cable 15 of 14 upper and lower sections of fleet wheels has identical angle of inclination, have the component of bigger horizontal direction.
One end of anti-fall gangbar 7 is 8 to be connected on the anti-fall wedge fast 4 through pinning, and on the top of pin 8 spring 18 is set, and anti-fall gangbar 78 is connected with pinning through spring 18.Can play cushioning effect like this, prevent that anti-fall gangbar 7 from being broken under big active force.
Pretension delay protection device 20 of the present invention can further cushion the active force that anti-fall gangbar 7 receives, with spring elongate or shorten cushioning effect power, prevent that the big moment that produces 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; Constitute by upper bush that is slidingly matched 21 and lower sleeve 22; Be provided with upper spring 23 in the upper bush 21, be provided with the next spring 24 in the lower sleeve 22, upper bush 21 is provided with dividing plate 25; Dividing plate 25 was opened upper spring 23 in 24 minutes with the next spring, promptly was arranged between upper spring 23 and the next spring 24; The hole that one end of interlock stay cord 9 passes dividing plate 25 is connected with upper spring 23, 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 that is connected on the upper bush 21 is equipped with in sleeve chute 26; When pin 27 slides up and down, produce sliding motion between upper bush 21 and the lower sleeve 22 in sleeve chute 26.Pretension delay protection device 20 is through bolt hole 28, and fitted bolt is installed, and can be installed on the attached wall supporting frame 2, perhaps on the body of wall.
The operating principle of pretension delay protection device 20: when interlock stay cord 9 receives active force, at first act on the upper spring 23 in the upper bush 21 upper spring 23 elongations; When upper spring 23 is elongated to the position of dividing plate 25, can not extends again, and give dividing plate 25 force transmission; Dividing plate 25 drives upper bush 21 and moves down, and overcomes the elastic force of the next spring 24, upper bush 21 this moment past lower slider in lower sleeve 22; When upper bush 21 slides in lower sleeve 22, just drive anti-fall gangbar 7 and rotate, anti-fall gangbar 7 produces action, acts on the anti-fall wedge fast 4.
The course of work of the present invention; Integral lifting scaffold is under normal operating condition; The preloading spring 16 at transverse axis 10 two ends is given transverse axis 10 active forces, and this active force acts on the anti-fall wedge fast 4 through transverse axis 10, interlock stay cord 9, anti-fall gangbar 7, and anti-fall wedge fast 4 and vertical main frame 1 are kept in touch under pressure state; Clamping action power is provided, guarantees the integral lifting scaffold operate as normal.When integral lifting scaffold rises under tackles drives; Through manual work or mechanical device pulling steel cable 15 (upper end of steel cable or lower end can be connected on the attached wall supporting frame 2); Make steel cable 15 stressed through fleet wheel 14 drive transverse axis 10 to illustrated left to moving; Drive anti-fall wedge fast 4 through interlock stay cord 9, anti-fall gangbar 7 and move to illustrated counter clockwise direction, coming off with vertical main frame 1 contacts, and vertical main frame 1 is descended smoothly.
Claims (5)
1. the pretension of the anti-fall voussoir of scaffold is protected linkage; The vertical main frame (1), attached wall supporting frame (2), anti-tip wheel (3), anti-fall wedge fast (4), the anti-dumping that comprise integral lifting scaffold push against wheel (5) and installation shaft (6); The anti-tip wheel (3) that installation shaft (6) through separately is arranged on the attached wall supporting frame (2) pushes against the both sides that wheel (5) is arranged on vertical main frame (1) with anti-dumping; Vertical main frame (1) is from pass between the two; Anti-fall wedge fast (4) is installed between vertical main frame (1) and the anti-tip wheel (3), and the tip of the anti-fall wedge of wedge shape fast (4) is between vertical main frame of top insertion (1) and the anti-tip wheel (3); It is characterized in that: go up correspondence at anti-fall wedge fast (4) and set one or two anti-fall gangbar (7); The other end of anti-fall gangbar (7) is connected through pretension delay protection device (20) on the end of interlock stay cord (9), and the other end of interlock stay cord (9) is connected on the 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); On two horizon bars (12) of attached wall supporting frame (2), correspondence is provided with chute (13), and the two ends of transverse axis (10) all are arranged in the chute (13), can be in chute (13) move left and right;
On transverse axis (10), be provided with fleet wheel (14), steel cable (15) passes fleet wheel (14); On transverse axis (10), be provided with preloading spring (16);
On attached wall supporting frame (2), with respect to the top of fleet wheel (14) with below, each correspondence is provided with a leading block (17), steel cable (15) through upper and lower two leading blocks (17) changes angle after, be connected with fleet wheel (14);
Described pretension delay protection device (20); Constitute by upper bush that is slidingly matched (21) and lower sleeve (22); Be provided with upper spring (23) in the upper bush (21); Be provided with the next spring (24) in the lower sleeve (22), upper bush (21) is provided with dividing plate (25), and dividing plate (25) separates upper spring (23) and the next spring (24); The hole that one end of interlock stay cord (9) passes dividing plate (25) is connected with upper spring (23), and anti-fall gangbar (7) is connected with upper bush (21).
2. the pretension protection linkage of the anti-fall voussoir of scaffold according to claim 1 is characterized in that: an end of said anti-fall gangbar (7) is to be connected on the anti-fall wedge fast (4) through pin (8).
3. the pretension protection linkage of the anti-fall voussoir of scaffold according to claim 1 and 2 is characterized in that: all be provided with preloading spring (16) at the two ends of transverse axis (10).
4. the pretension protection linkage of the anti-fall voussoir of scaffold according to claim 2, it is characterized in that: the top at pin (8) is provided with spring (18), and anti-fall gangbar (7) is connected with pin (8) through spring (18).
5. protect linkage according to the pretension of claim 1, the anti-fall voussoir of 2 or 4 described scaffolds; It is characterized in that: between upper bush (21) and lower sleeve (22); Be equipped with sleeve chute (26), the pin (27) that is connected on the 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 true CN102493637A (en) | 2012-06-13 |
| CN102493637B CN102493637B (en) | 2014-04-02 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102493637B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046735A (en) * | 2013-02-07 | 2013-04-17 | 朱新伟 | Reinforcing fastener of anti-collapse bracket |
| CN112610008A (en) * | 2021-01-19 | 2021-04-06 | 丁宏建 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046735A (en) * | 2013-02-07 | 2013-04-17 | 朱新伟 | Reinforcing fastener of anti-collapse bracket |
| CN103046735B (en) * | 2013-02-07 | 2015-02-18 | 朱新伟 | Reinforcing fastener of anti-collapse bracket |
| CN112610008A (en) * | 2021-01-19 | 2021-04-06 | 丁宏建 | Anti-falling device of building element for building construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102493637B (en) | 2014-04-02 |
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| CB02 | Change of applicant information |
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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