CN201314117Y - Anti-falling mechanism of attached lifting scaffold - Google Patents

Anti-falling mechanism of attached lifting scaffold Download PDF

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Publication number
CN201314117Y
CN201314117Y CNU2008200990143U CN200820099014U CN201314117Y CN 201314117 Y CN201314117 Y CN 201314117Y CN U2008200990143 U CNU2008200990143 U CN U2008200990143U CN 200820099014 U CN200820099014 U CN 200820099014U CN 201314117 Y CN201314117 Y CN 201314117Y
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China
Prior art keywords
falling
fall
seat body
slide block
guide seat
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Expired - Fee Related
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CNU2008200990143U
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Chinese (zh)
Inventor
贺昌义
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Individual
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Individual
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Abstract

The utility model relates to an anti-falling mechanism of an attached lifting scaffold, comprising a raising rod and a one-way pawl mechanism which comprises an anti-falling block and a restoring spring, wherein one end of the restoring spring is connected with a guide seat body; under the action of pretightening force of the restoring spring, the anti-falling block is supported on an anti-falling supporting plate on the guide seat body; a sliding block is arranged between the restoring spring and the anti-falling block; and the other end of the restoring spring is articulated with the sliding block; one end of the sliding block is connected with the anti-falling block by forming a moving pair, and the other end thereof is connected with the raising rod by forming a moving pair. Under the using conditions, not less than three anti-falling mechanisms in each machine position are in a self-locking state; and under the declining conditions, only the raising rods are connected in series in sequence, so that multiple anti-falling mechanisms can prevent falling, and the operation is simple and fast; and under all the working conditions, not less than two anti-falling mechanisms can play an anti-falling role, and ensure that the falling distance is not more than 80mm, thereby effectively reducing the impact force caused by the falling of a frame body.

Description

The attached lift scaffold anti-falling mechanism
Technical field
The utility model relates to the anti-falling mechanism of a kind of building operations with guide bracket formula attached lift scaffold (hereinafter to be referred as lifting false work), especially this anti-falling mechanism is to realize lifting false work anti-fall under the decline operating mode simply, efficiently, can guarantee validity, the reliability of anti-falling mechanism, can guarantee that every seat in the plane has at least three anti-falling mechanisms to be in anti-fall state (also claiming self-locking state) under applying working condition.
Background technology
At present, attached lift scaffold falling proof device form of structure is varied.Divide from braking principle, mainly be divided into friction-type, click formula.
The anti-fall primary structure form of friction-type has voussoir sleeve pipe flip-over type, wire rope flip-over type, wedge pincers type and eccentric cam type, they all be utilize support body fall or the speed of falling triggers falling proof device, reach anti-fall purpose thereby friction lever by independent installation or the frictional force that anti-fall part produced on guide rail surface and the falling proof device realize braking.Under applying working condition, its safety dropping prevent mechanism is in non-self-locking state, must adopt other modes to fix support body.
The click formula is to adopt the principle of unidirectional ratchet, generally is made up of elements such as anti-fall and reset tension springs.Reset tension spring one end is connected with guide seat body, and the other end is connected with anti-fall; Anti-fall connects in guide seat body by bearing pin, and under the effect of reset tension spring pretightning force, is bearing on the guide seat body, makes scaffold keep self-locking state.In promoting operating mode, the anti-faller on the guide rail is stirred the anti-fall rotation side of making bob piece and is departed from self-locking state, thereby realizes the lifting of scaffold; As falling, the power of reset tension spring drives anti-fall backward rotation to self-locking state at this moment, stops scaffold to fall.Under the decline operating mode, need a cover trigger mechanism just can make anti-fall and depart from self-locking state, thereby realize the decline of scaffold.
More than two kinds of anti-falling mechanisms because structure design, generally all be designed to exposed structure.
But there are many deficiencies in above way of realization.
Friction-type is anti-fall to be had the following disadvantages:
1, utilizes and to fall or the speed of falling triggers anti-falling mechanism, objectively there is time-delay in the response of anti-falling mechanism, causes braking distance long, thereby makes lifting false work produce great impact force, easily cause the destruction of frame structure, thereby may cause the generation of security incident;
2, because the building operations environment is abominable, friction lever or guide rail surface cause friction surface to lose efficacy, thereby cause anti-fall inefficacy owing to the surface exposed concrete that condenses that is easy to, and the lifting false work lifting also becomes difficult;
3, under applying working condition, falling proof device is in non-anti-fall state (that is: non-self-locking state).
There is deficiency equally in the click formula structure of unidirectional ratchet principle:
In the decline process of lifting false work, need to install a cover trigger mechanism.The installation of general trigger mechanism, debug difficulties, work efficiency is low, is difficult to guarantee the validity and the reliability of mechanism kinematic, thereby has great potential safety hazard.
The utility model content
Excessive in order to overcome existing anti-falling mechanism braking distance, mechanism's validity is poor, scaffold lifting difficulty, the anti-falling mechanism flip flop equipment was installed shortcomings such as loaded down with trivial details and debug difficulties when scaffold descended, the utility model provides a kind of anti-falling mechanism, this fall arrest mounting mechanism can not only be realized anti-fall, and can guarantee under non-lifting operating mode, each anti-falling mechanism (being not less than 3) all is in anti-fall state (also claiming self-locking state), can guarantee the validity of anti-falling mechanism, reliability, under the decline operating mode, can be convenient, fast, the trigger mechanism of anti-falling mechanism is installed reliably, can be guaranteed that falling distance is not more than 80mm.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of attached lift scaffold anti-falling mechanism, be installed in guide seat body, comprise raising rod and one-way ratchet, this one-way ratchet comprises anti-fall and reset tension spring, reset tension spring one end is connected with guide seat body, anti-fall is installed on the guide seat body by supporting shaft, under the effect of reset tension spring pretightning force, on the anti-fall base plate that anti-fall is bearing on the guide seat body; It is characterized in that: be provided with slide block between reset tension spring and anti-fall, the other end of reset tension spring is articulated on the slide block, and slide block one end constitutes moving sets and is connected with anti-fall, and the other end is connected with raising rod formation moving sets.
Reset tension spring and spring are hung pin and are connected, and pass the conduit endoporus on the guide seat body, and the hole that the other end passes the bearing plate on the slide block is articulated on the extension pin on the slide block.
Sliding pin on anti-fall is installed in the notch of slide block upper shift fork, and sliding pin can move in the shift fork notch.
Raising rod comprises the guide cylinder that is fixed together, spacing base plate and pull bar, and guide cylinder and spacing base plate are positioned at guide seat body, and the stage clip kink is on pull bar, and the stage clip upper and lower side contacts with stage clip base plate in the guide seat body with spacing base plate respectively.
Spring strut kink on the slide block is in guide cylinder, and the shift fork on the slide block is positioned at the notch of guide cylinder.
The buffering stage clip is installed in the spring strut, and buffering stage clip kink is on the conduit on the guide seat body, and buffering stage clip one end contacts with bearing plate on the slide block, and the other end contacts with spacing base plate on the raising rod.
On guide seat body, be provided with the panel of control raising rod up stroke and the base plate of down stroke.
When scaffold descended, the raising rod on each anti-falling mechanism joined end to end by adjustable connector.
Under any operating mode, be in the semitight state except that the anti-fall rotating mechanism of forming with leading anti leaning equipment with slide mechanism that slide block is formed, remainder becomes complete seal form, can guarantee in abominable construction environment the validity of anti-falling mechanism and reliability.
Promote under the operating mode at scaffold, except that the anti-falling mechanism that is connected with lifting means, anti-falling mechanism is an one-way ratchet; Anti-faller on the guide rail is stirred anti-fall and is rotated (diagram rotates counterclockwise) around supporting shaft, the sliding pin on anti-fall force slide block along the guide cylinder on the raising rod to lower slider, reset tension spring is elongated; When described anti-faller was thrown off anti-fall, anti-fall resetted under the effect of reset tension spring, makes support body be in self-locking state.
Under scaffold decline operating mode, use the rigging (as wire rope) that has adjusting length mechanism (as wire tensioner) that the raising rod series connection and the adjusting of each anti-falling mechanism are strained.Because scaffold is in self-locking state, need carry out short-range lifting earlier.Under the effect of lifting force, on the base plate of raising rod compressing stage clip in guide seat body; Raising rod forces the compression of buffering stage clip, and the buffering masterpiece that stage clip produced is used on the slide block; Because the rigidity of buffering stage clip is much larger than the rigidity of reset tension spring, the equal power that deflection produced is much larger than power that reset tension spring produced, thereby the trend that forces slide block to glide along the raising rod guide cylinder is arranged, further drive anti-fall and rotate around supporting shaft, its anti-fall is departed from self-locking state.The initial improvement stage before decline, do not deviate from anti-faller as yet for anti-fall, anti-fall can not be rotated, and at this moment, the effect of buffering stage clip is to avoid slide block and anti-fall to bear excessive power not to be damaged with protection slide block and anti-fall.During the anti-faller all deviate from fully on the guide rail when anti-fall, slide block drives anti-fall and departs from self-locking state and continue this state of maintenance under the power effect of buffering stage clip, at this moment, just can begin the decline of scaffold.When taking place rupture such as the rigging in the lifting means, raising rod resets to the state applying working condition under under the power effect of stage clip, cushion stage clip and return to the drift state, thereby reset tension spring drive slide block resets and drives anti-fall block reset to self-locking state.
The beneficial effects of the utility model are: under applying working condition, every seat in the plane is not less than 3 anti-falling mechanisms and all is in self-locking state; Under the decline operating mode, only need the series connection of raising rod order can be realized that just many safety dropping prevent mechanisms are anti-fall that it is simple to operate, quick; Safety dropping prevent mechanism is designed to sealed mechanism, can guarantees under abominable construction environment the validity of safety dropping prevent mechanism and reliability; Under all operating modes, be not less than 2 anti-falling mechanisms and can play anti-fall effect, and guarantee that falling distance is not more than 80mm, thereby effectively reduce the impact force that support body falls and causes.
Description of drawings
Fig. 1 is that side schematic view is installed in the attached lift scaffold seat in the plane;
Fig. 2 is the utility model structural representation (also being the I enlarged drawing among Fig. 1);
Fig. 3 is the slide block schematic diagram;
Fig. 4 is the raising rod schematic diagram;
Fig. 5 is the guide seat body schematic diagram.
Among the figure: 1, fabric structure, 2, vertical main frame guide rail, 3, attached support structure, 4, guide seat body, 5, raising rod, 6, reset tension spring, 7, spring is hung pin, and 8, conduit, 9, anti-faller, 10, anti-fall, 11, supporting shaft, 12, sliding pin, 13, slide block, 14, buffering stage clip, 15, stage clip, 16, hang pin, 17, bearing plate, 18, shift fork, 19, spring strut, 20, guide cylinder, 21, spacing base plate, 22, pull bar, 23, arm-tie, 24, base plate, 25, stage clip base plate, 26, anti-fall base plate, 27 panels.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 2 and Fig. 5, from the figure as can be seen, attached lift scaffold anti-falling mechanism of the present utility model is installed in guide seat body 4, it comprises raising rod 5, one-way ratchet and slide block 13, guide seat body 4 with adhere to braced structures and fix, which is provided with conduit 8, be provided with spring in the conduit 8 and hang pin 7.One-way ratchet comprises anti-fall 10 and reset tension spring 6, being installed on by supporting shaft 11 for anti-fall 10 also can be around supporting shaft 11 rotation in the guide seat body 4, in guide seat body 4, be provided with anti-fall base plate 26, anti-fall base plate 26 is used to support anti-fall 10 soffit, and lifting false work is supported by anti-fall 10 upper surface.Under the effect of reset tension spring 6 pretightning forces, on the anti-fall base plate 26 that anti-fall 10 is bearing on the guide seat body 4.
Referring to Fig. 4, raising rod 5 comprises guide cylinder 20, spacing base plate 21, pull bar 22 and the arm-tie 23 that is fixed together simultaneously.Guide cylinder 20 and spacing base plate 21 are positioned at guide seat body 4, and spacing base plate 21 and guide cylinder 20 kinks are on conduit 8 external cylindrical surfaces of guide seat body 4.Pull bar 22 two ends pass from guide seat body 4, and arm-tie 23 is fixed on pull bar 22 lower ends, are equipped with hanging hole on pull bar 22 upper ends and the arm-tie 23.Kink has stage clip 15 on pull bar 22, and stage clip 15 upper and lower ends contact with stage clip base plate 25 in spacing base plate 21 and the guide seat body 4 respectively.Stage clip has initial pretightning force, and this pretightning force is greater than the weight of lifting means, makes the pull bar return that can make progress automatically after lifting force disappears.
Be provided with the base plate 24 of restriction raising rod 5 downstream position in guide seat body 4, the total kilometres of raising rod 5 are by the panel 27 and base plate 24 controls of guide seat body 4.
Referring to Fig. 3, slide block 13 is made up of shift fork 18, spring strut 19, extension pin 16 and bearing plate 17 simultaneously, and shift fork 18 is fixed on spring strut 19 outer walls, and shift fork 18 is provided with chute, hangs pin 16 and bearing plate 17 and is fixed in the spring strut 19.Spring strut 19 kinks are in guide cylinder 20, and shift fork 18 passes from the vertical notch of guide cylinder 20.Be provided with buffering stage clip 14 in spring strut 19, buffering stage clip 14 kinks are on 8 external cylindrical surfaces of the conduit on the guide seat body 4, and its upper and lower side contacts with the bearing plate 17 established in spacing base plate 21 and the spring strut respectively.Reset tension spring 6 is located in the spring strut 19, and an end of reset tension spring 6 and spring are hung pin 7 and be connected, and the other end passes on the extension pin 16 that hangs over behind conduit 8 inner cylinder faces on the guide seat body 4 on the slide block 13.
Be provided with sliding pin 12 for anti-fall 10, sliding pin 12 is installed in the shift fork chute also removable.Be provided with on guide rail 2 and make it carry on a shoulder pole some anti-faller 9 in anti-fall upper surface when guide rail falls, described anti-faller 9 is welded on the guide rail 2, the spacing of adjacent two anti-fallers 9 in 80mm to guarantee anti-fall distance.Certainly, sliding pin also can be located on the shift fork, and the chute on the shift fork is located on anti-fall, and this does not break away from protection domain of the present utility model equally.
Under any operating mode, be in the semitight state except that anti-fall 10 rotating mechanism of forming with guide seat body 4 with slide mechanism that slide block 13 is formed, mechanism's remainder becomes complete seal form, can guarantee in abominable construction environment the validity of anti-falling mechanism and reliability.
Under applying working condition, because buffering stage clip 14 is in own length state, the anti-fall 10 effect lower support in reset tension spring 6 pretightning forces is on the base plate on the guide seat body 4 27, and lifting false work makes scaffold be in self-locking state by flat bearing on anti-fall 10.
Under the lifting operating mode, lifting means is connected with raising rod 5 by the B hole.
Promote under the operating mode at scaffold, except that the anti-falling mechanism that is connected with lifting means, anti-falling mechanism is an one-way ratchet; Anti-faller 9 on the guide rail is stirred anti-fall 10 and is rotated counterclockwise around supporting shaft 11, anti-fall last 10 sliding pin 12 force slide block 13 along guide cylinder 20 to lower slider, reset tension spring 6 is elongated; When described anti-faller was thrown off anti-fall, anti-fall resetted under the effect of reset tension spring, makes support body be in self-locking state.
Under scaffold decline operating mode, use has the rigging (as wire rope) of regulating length mechanism (as wire tensioner) strains the raising rod 5 head and the tail series connection and the adjusting of each anti-falling mechanism, and the A hole that is about to next anti-falling mechanism raising rod upper end is connected with the B hole of a last anti-falling mechanism raising rod lower end.Because scaffold is in self-locking state, need carry out short-range lifting earlier.Under the effect of lifting force, raising rod 5 compressing stage clips are on base plate 24; Raising rod 5 forces 14 compressions of buffering stage clip, and the masterpiece that buffer spring 14 is produced is used on the slide block 13; Because the rigidity of buffering stage clip 14 is much larger than the rigidity of reset tension spring 6, the power that the equal power that deflection produced is produced much larger than back-moving spring 6, thereby the trend that forces slide block 13 to glide along raising rod 5 guide cylinders 20 is arranged, further drive anti-fall 10 around supporting shaft 11 rotations, its anti-fall 10 is departed from self-locking state.The initial improvement stage before decline, do not deviate to prevent faller 9 as yet for anti-fall 10, anti-fall 10 can not be rotated, and at this moment, the effect of buffer spring 14 is to avoid slide block 13 and anti-fall 10 to bear excessive power not to be damaged with protection slide block 13 and anti-fall 10; During the anti-faller 9 all deviate from fully on the guide rail when anti-fall 10, slide block 13 drives anti-fall 10 and departs from self-locking state and continue this state of maintenance under the power effect of buffer spring 14, at this moment, just can begin the decline of scaffold.When generation is ruptured such as the rigging in the lifting means, raising rod loses power, raising rod 5 is under the power effect of stage clip 15, reset to the state under the applying working condition, buffering stage clip 14 returns to the drift state, moves up and drives anti-fall 10 and reset to self-locking state thereby reset tension spring 6 drives slide blocks 13, and anti-fall 10 soffit is by anti-fall base plate 26 supportings, anti-faller 9 loads stop guide rail 2 to fall at anti-fall 10 upper surface, realize that all falling proof devices are simultaneously anti-fall automatically.
Fig. 1 is that side schematic view is installed in the attached lift scaffold seat in the plane, and wherein mark 1 is a fabric structure, and 2 is vertical main frame guide rail, and 3 is attached support structure.Under the decline operating mode, remove uppermost attached support structure, lifting means hangs on the anti-falling mechanism on the nethermost attached support structure, tie point and uses the rigging of adjustable length raising rod is together in series (that is: the A hole of following raising rod and the B hole of top raising rod being coupled together) on raising rod; Promoting under the operating mode, remove nethermost attached support structure, lifting means hangs on the anti-falling mechanism on nethermost second attached support structure, and tie point is on raising rod.

Claims (9)

1, a kind of attached lift scaffold anti-falling mechanism, be installed in guide seat body (4), comprise raising rod (5) and one-way ratchet, this one-way ratchet comprises anti-fall (10) and reset tension spring (6), reset tension spring (6) one ends are connected with guide seat body (4), anti-fall (10) are installed on the guide seat body (4) by supporting shaft (11), and under the effect of reset tension spring (6) pretightning force, anti-fall (10) are bearing on the anti-fall base plate (26) on the guide seat body (4); It is characterized in that: be provided with slide block between reset tension spring and anti-fall, the other end of reset tension spring is articulated on the slide block, and slide block one end constitutes moving sets and is connected with anti-fall, and the other end is connected with raising rod formation moving sets.
2, anti-falling mechanism according to claim 1 is characterized in that: reset tension spring and spring are hung pin and are connected, and pass the conduit endoporus on the guide seat body, and the hole that the other end passes the bearing plate on the slide block is articulated on the extension pin on the slide block.
3, anti-falling mechanism according to claim 1 is characterized in that: the sliding pin on anti-fall is installed in the notch of slide block upper shift fork, and sliding pin can move in the shift fork notch.
4, according to claim 1 or 2 or 3 described anti-falling mechanisms, it is characterized in that: raising rod (5) comprises the guide cylinder (20) that is fixed together, spacing base plate (21) and pull bar (22), guide cylinder (20) and spacing base plate (21) are positioned at guide seat body (4), stage clip (15) kink is on pull bar (22), and the stage clip upper and lower side contacts with stage clip base plate in the guide seat body with spacing base plate respectively.
5, anti-falling mechanism according to claim 4 is characterized in that: the spring strut on the slide block (19) kink is in guide cylinder (20), and the shift fork on the slide block (18) is positioned at the notch of guide cylinder (20).
6, anti-falling mechanism according to claim 5, it is characterized in that: buffering stage clip (14) is installed in the spring strut (19), buffering stage clip (14) kink is on the conduit on the guide seat body (8), buffering stage clip (14) one ends contact with bearing plate (17) on the slide block, and the other end contacts with spacing base plate (21) on the raising rod.
7, anti-falling mechanism according to claim 1 is characterized in that: be provided with the panel (27) of control raising rod up stroke and the base plate (24) of down stroke on guide seat body (4).
8, anti-falling mechanism according to claim 4 is characterized in that: spacing base plate (21) kink makes guide cylinder (20) concentric with conduit (8) on conduit (8) external cylindrical surface.
9, anti-falling mechanism according to claim 1 is characterized in that: the raising rod on each anti-falling mechanism (5) joins end to end by adjustable connector.
CNU2008200990143U 2008-12-16 2008-12-16 Anti-falling mechanism of attached lifting scaffold Expired - Fee Related CN201314117Y (en)

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Application Number Priority Date Filing Date Title
CNU2008200990143U CN201314117Y (en) 2008-12-16 2008-12-16 Anti-falling mechanism of attached lifting scaffold

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Application Number Priority Date Filing Date Title
CNU2008200990143U CN201314117Y (en) 2008-12-16 2008-12-16 Anti-falling mechanism of attached lifting scaffold

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114714A (en) * 2013-02-04 2013-05-22 嘉兴平翔建筑工程设备有限公司 Anti-falling device of lifting-type scaffold
CN103437541A (en) * 2013-08-30 2013-12-11 中国能源建设集团山西省电力建设四公司 Falling preventing device of electric chimney elevating climbing frame
CN108910764A (en) * 2018-09-28 2018-11-30 深圳市中科利亨车库设备股份有限公司 Elevator chain breaking falling-prevention device
US10150268B2 (en) 2012-04-24 2018-12-11 Fuji Seiko Co., Ltd Bead ring manufacturing device
CN109455646A (en) * 2018-09-28 2019-03-12 深圳市中科利亨车库设备股份有限公司 Elevator chain breaking falling-prevention device
CN110092331A (en) * 2019-05-29 2019-08-06 中匠机器人(深圳)有限公司 A kind of anti-fall mechanism and lifting type robot of lifting device
CN112411996A (en) * 2020-11-09 2021-02-26 厦门安科科技有限公司 Multifunctional wall-attached support structure
CN114934661A (en) * 2022-05-25 2022-08-23 贵州建工集团第一建筑工程有限责任公司 Construction and use method of scaffold

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10150268B2 (en) 2012-04-24 2018-12-11 Fuji Seiko Co., Ltd Bead ring manufacturing device
CN103114714A (en) * 2013-02-04 2013-05-22 嘉兴平翔建筑工程设备有限公司 Anti-falling device of lifting-type scaffold
CN103437541A (en) * 2013-08-30 2013-12-11 中国能源建设集团山西省电力建设四公司 Falling preventing device of electric chimney elevating climbing frame
CN108910764A (en) * 2018-09-28 2018-11-30 深圳市中科利亨车库设备股份有限公司 Elevator chain breaking falling-prevention device
CN109455646A (en) * 2018-09-28 2019-03-12 深圳市中科利亨车库设备股份有限公司 Elevator chain breaking falling-prevention device
CN110092331A (en) * 2019-05-29 2019-08-06 中匠机器人(深圳)有限公司 A kind of anti-fall mechanism and lifting type robot of lifting device
CN112411996A (en) * 2020-11-09 2021-02-26 厦门安科科技有限公司 Multifunctional wall-attached support structure
CN112411996B (en) * 2020-11-09 2022-03-22 厦门安科科技有限公司 Multifunctional wall-attached support structure
CN114934661A (en) * 2022-05-25 2022-08-23 贵州建工集团第一建筑工程有限责任公司 Construction and use method of scaffold

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Granted publication date: 20090923

Termination date: 20161216