CN115450407B

CN115450407B - Engineering construction scaffold

Info

Publication number: CN115450407B
Application number: CN202211408139.0A
Authority: CN
Inventors: 黄嘉琪; 余清权; 冼伟恒; 郑滨雁; 李玉蛟
Original assignee: China Southern Power Grid Smart Energy Guangdong Co ltd
Current assignee: Guangdong Nanhai Electric Power Design Institute Engineering Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-31
Anticipated expiration: 2042-11-10
Also published as: CN115450407A

Abstract

The invention relates to the technical field of scaffolds, in particular to an engineering construction scaffold, which comprises a supporting mechanism, wherein a limiting mechanism is arranged on the supporting mechanism, a rest mechanism for workers to rest during construction is arranged on the limiting mechanism, a protection mechanism for protecting the workers is arranged on the supporting mechanism, a fixing mechanism is arranged on the protection mechanism, the protection mechanism is rotationally connected with the fixing mechanism, and a lifting mechanism for taking low building materials is arranged on the limiting mechanism; the support mechanism is provided with a limiting mechanism, the limiting mechanism is provided with a rest mechanism, the rest mechanism can be adjusted on the bottom plate through the limiting mechanism, construction at different positions of the wall surface is facilitated, the rest mechanism is matched with the rest mechanism to move the construction position, the rest mechanism can facilitate construction in a sitting mode of constructors, operation is facilitated, and the comfort level is improved; the limiting mechanism is provided with a lifting mechanism, so that construction personnel can take tools and building materials at low positions at high positions conveniently.

Description

Engineering construction scaffold

Technical Field

The invention relates to the technical field of scaffolds, in particular to an engineering construction scaffold.

Background

The scaffold is a working platform which is erected for ensuring each construction process to be carried out smoothly; the scaffold is divided into an outer scaffold and an inner scaffold according to the erected positions; the scaffold can be divided into a wood scaffold, a bamboo scaffold and a steel pipe scaffold according to different materials; according to the structural form, the scaffold is divided into a vertical rod type scaffold, a bridge type scaffold, a door type scaffold, a suspension type scaffold, a hanging type scaffold, a cantilever type scaffold and a climbing type scaffold.

However, when the existing scaffold for engineering construction is used for sculpturing a wall surface, construction needs to be carried out at one position for a long time, workers need to keep a stooping posture for operation when fixing positions on the scaffold for long-time construction, the scaffold is not provided with a device which can assist the workers to carry out construction in a sitting posture mode, and the comfort level is low during long-time construction; when the scaffold is constructed, tools or building materials are generally placed on the base plate, so that the building materials and the tools are inconvenient to take, and workers are influenced to walk on the base plate, so that the construction is not facilitated; if the height that the scaffold was built is higher, need carry building materials climbing scaffold when taking the ground building materials, not only inconvenient building materials of taking are unfavorable for the security in addition low.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an engineering construction scaffold.

The technical scheme adopted by the invention for solving the technical problems is as follows: an engineering construction scaffold comprises a supporting mechanism, wherein a limiting mechanism is arranged on the supporting mechanism, a rest mechanism for workers to rest during construction is arranged on the limiting mechanism, a protection mechanism for protecting the workers is arranged on the supporting mechanism, a fixing mechanism is arranged on the protection mechanism, the protection mechanism is rotatably connected with the fixing mechanism, and a lifting mechanism for taking low-position building materials is arranged on the limiting mechanism;

stop gear includes the bottom plate, be connected with the bottom plate through the buckle lock on the supporting mechanism, it is equipped with two spouts to open relatively on the bottom plate, sliding connection has the slide on the bottom plate, on the slide relative fixedly connected with two respectively with two spout sliding connection's slider, two the bottom fixedly connected with of slider and the first spring of bottom plate conflict, rest mechanism is including fixed frame, it is connected with fixed frame to rotate on the slide, be fixed with the baffle on the fixed frame, sliding connection has the lead screw on the baffle, sliding connection has the slide on the fixed frame, the bottom fixedly connected with of slide runs through the sleeve of fixed frame, threaded connection between lead screw and the sleeve.

Specifically, the sections of the two sides of the sliding plate are both L-shaped structures.

Specifically, the cross section of the sliding seat is of an inverted U-shaped structure, and the top of the sliding seat is arranged in parallel with the fixing frame.

Specifically, the supporting mechanism comprises two side frames, two groups of retaining rings are connected to the two side frames in a buckling mode, two groups of supporting rods arranged in an X shape are fixedly connected between the two side frames, and the two supporting rods in the same group are fixedly connected through screws.

Specifically, the supporting mechanism further comprises universal wheels and a ladder stand, the two universal wheels are mounted at the bottoms of the two side frames, and the ladder stand is mounted on the two side frames.

Specifically, hoist mechanism includes the shell, fixedly connected with shell on the bottom plate, the inside of shell is rotated and is connected with first gear and second gear, the meshing between first gear and the second gear, be fixed with the rolling disc that runs through the shell on the first gear, fixedly connected with stay cord on the rolling disc, be fixed with the couple on the stay cord, sliding connection has the limiting plate of contradicting with first gear on the shell, the centre gripping has the second spring between limiting plate and the shell.

Specifically, the diameter of the first gear is larger than that of the second gear, and the cross section of the shell is of an inverted L-shaped structure.

Specifically, the lifting mechanism further comprises a crank, and the crank is fixed on the second gear.

Specifically, the fixing mechanism comprises two fixing strips, the protection mechanism is fixedly connected with the two fixing strips relatively, and the opposite sides of the two fixing strips are provided with second buckling holes.

Specifically, protection machanism includes the guard plate, two it is connected with the guard plate to rotate between the fixed strip, both ends back of the body sliding connection that carries on the back about the inside of guard plate have two card posts, the centre gripping has the third spring between card post and the guard plate, be fixed with the handle on the card post, two equal sliding connection has the screw rod on the side bearer, threaded connection has the steering wheel on the screw rod, two first knot hole has all been seted up on the screw rod.

The beneficial effects of the invention are:

(1) According to the engineering construction scaffold, the limiting mechanism is arranged on the supporting mechanism, the rest mechanism is arranged on the limiting mechanism, the rest mechanism can be adjusted on the bottom plate through the limiting mechanism, construction on different positions of a wall surface is facilitated, the rest mechanism is matched to move the construction position, construction workers can conveniently sit on the rest mechanism for construction, operation is facilitated, and the comfort level is improved; namely: constructor when the long-time construction of wall same position on the bottom plate, can be through sitting on the slide, when constructor is on the bottom plate, can oneself adjust the position of slide, when adjusting, constructor only need not carry out the application of force to the slide, the first spring of slider bottom this moment is in the state of opening, so the interior bottom of slide is contradicted with the bottom of bottom plate, so slide can horizontal migration on the bottom plate this moment, and the slider is spacing to the slide with the spout cooperation, constructor can directly sit on the slide after the definite position, do benefit to the construction, comfort level when improving the construction, the spout is "protruding" font structure down, avoid first spring to crush, so constructor also can adjust the height of slide as required, only need to rotate the lead screw on the baffle during regulation, the lead screw has realized telescopic flexible after clockwise or anticlockwise rotation, and then realized the altitude mixture control to the slide, do benefit to the construction.

(2) According to the engineering construction scaffold, the lifting mechanism is arranged on the limiting mechanism, so that a constructor can take tools and building materials at a low position at a high position conveniently, tools and building material climbing supporting mechanisms do not need to be carried repeatedly, and the construction safety is improved; namely: when constructor need take the instrument or the building materials of low department on the bottom plate, can deviate from the direction pulling limiting plate of shell, the second spring shrink this moment, the limiting plate is no longer spacing to first gear, the direct crank that rotates this moment realizes that the second gear drives first gear revolve, thereby the roll-up dish carries out the unwrapping wire to the stay cord, the constructor of conflict can hang instrument and building materials on the couple, loosen the limiting plate, the second spring opens, and then, the limiting plate is spacing to first gear once more, it can also be spacing to have realized first gear limit rotation roll-up stay cord so, avoid the building materials to drop, need not to scramble the cat ladder repeatedly, the security of construction improves.

(3) According to the engineering construction scaffold, the supporting mechanism is provided with the fixing mechanism and the protection mechanism, so that the construction position can be protected through the protection mechanism during construction, the construction safety is improved, and building materials and tools can be fixedly placed on the protection mechanism through the fixing mechanism, so that the scaffold is favorable for walking on a bottom plate; namely: when constructor is under construction on the bottom plate, can rotate the rudderstock on two screws and come the length that adjusting screw stretches out, the rudderstock is contradicted with the top of side bearer all the time when adjusting, can avoid the screw rod to drop, rotate the guard plate, two handles of relative extrusion, so two third spring contractions, and then the inside of guard plate is contracted to two calorie of posts, loosen the handle when the guard plate is parallel with the screw rod, the inside in the first knot hole of screw rod lateral wall is buckled to the reset lock of third spring this moment, realize the protection when construction, so also can detain the inside in hole through the second of card post lock to the fixed strip lateral wall with the guard plate, do benefit to placing of instrument and building materials, do benefit to constructor walking on the bottom plate.

Drawings

The invention is further illustrated by the following examples in conjunction with the drawings.

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of an engineering scaffold provided by the present invention;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is an enlarged view of the part B shown in FIG. 1;

FIG. 4 is a schematic view of the connection structure of the bottom plate, the sliding block and the fixing frame of the present invention;

FIG. 5 is an enlarged view of the structure of the part C shown in FIG. 4;

FIG. 6 is a schematic view of the connection structure of the housing, the first gear, the second gear, the crank, the take-up reel and the pull cord of the present invention;

FIG. 7 is a schematic view of the connection structure of the housing, the first gear, the second gear and the take-up reel of the present invention;

FIG. 8 is an enlarged view of the structure of the portion D shown in FIG. 7;

FIG. 9 is a schematic view of the connection structure of the side frame, screw rods, fender plates, clamp posts, third springs, rudder plate and fixing strips according to the present invention.

In the figure: 1. a support mechanism; 101. a side frame; 102. a support bar; 103. a universal wheel; 104. a screw; 105. climbing a ladder; 2. a limiting mechanism; 201. a base plate; 202. a chute; 203. a slide plate; 204. a slider; 205. a first spring; 206. a retaining ring; 3. a resting mechanism; 301. a fixing frame; 302. a partition plate; 303. a screw rod; 304. a slide base; 305. a sleeve; 4. a lifting mechanism; 401. a housing; 402. a first gear; 403. coiling a disc; 404. pulling a rope; 405. hooking; 406. a second gear; 407. a crank; 408. a limiting plate; 409. a second spring; 5. a protection mechanism; 501. a protection plate; 502. clamping the column; 503. a screw; 504. a rudder wheel; 505. a first buckle hole; 506. a third spring; 507. a handle; 6. a fixing mechanism; 601. a fixing strip; 602. a second buckle hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, the engineering construction scaffold of the present invention comprises a supporting mechanism 1, wherein a limiting mechanism 2 is arranged on the supporting mechanism 1, a resting mechanism 3 for resting a worker during construction is arranged on the limiting mechanism 2, a protecting mechanism 5 for protecting the worker is arranged on the supporting mechanism 1, a fixing mechanism 6 is arranged on the protecting mechanism 5, the protecting mechanism 5 is rotatably connected with the fixing mechanism 6, and a lifting mechanism 4 for taking a low building material is arranged on the limiting mechanism 2;

the limiting mechanism 2 comprises a bottom plate 201, the supporting mechanism 1 is connected with the bottom plate 201 through a retaining ring 206 in a buckling manner, the bottom plate 201 is provided with two sliding grooves 202 which are oppositely arranged, the bottom plate 201 is connected with a sliding plate 203 in a sliding manner, the sliding plate 203 is relatively fixedly connected with two sliding blocks 204 which are respectively connected with the two sliding grooves 202 in a sliding manner, the bottoms of the two sliding blocks 204 are fixedly connected with a first spring 205 which is abutted against the bottom plate 201, the rest mechanism 3 comprises a fixed frame 301, the sliding plate 203 is connected with a fixed frame 301 in a rotating manner, a partition plate 302 is fixed on the fixed frame 301, a lead screw 303 is connected on the partition plate 302 in a rotating manner, a sliding seat 304 is connected on the fixed frame 301 in a sliding manner, the bottom of the sliding seat 304 is fixedly connected with a sleeve 305 which penetrates through the fixed frame 301, the lead screw 303 is in threaded connection with the sleeve 305, the cross sections of the two sides of the sliding plate 203 are both in L-shaped structures, the cross section of the sliding plate 304 is in inverted U-shaped structure, and the top of the sliding seat 304 is arranged in parallel with the fixed frame 301; constructor is in when constructing for a long time the same position of wall on the bottom plate 201, can be through sitting on the slide 304, when constructor is in when on the bottom plate 201, can oneself adjust the position of slide 304, when adjusting, constructor only need not right slide 304 carries out the application of force, this moment slider 204 bottom first spring 205 is in the state of opening, so the interior bottom of slide 203 with the bottom of bottom plate 201 is contradicted, so this moment slide 203 can horizontal migration on the bottom plate 201, just slider 204 with the cooperation of spout 202 is right slide 203 is spacing, and constructor can directly sit behind the definite position on the slide 304 does benefit to the construction, improves the comfort level during construction, spout 202 is down "protruding" font structure, avoids first spring 205 crushes, so constructor also can adjust as required the height of slide 304, only needs to rotate during the regulation lead screw 303 on the baffle 302, lead screw 303 has realized right behind clockwise or the anticlockwise rotation sleeve 305's flexible, and then realized right the altitude mixture control of slide 304 does benefit to the construction.

Specifically, the supporting mechanism 1 comprises two side frames 101, two groups of retaining rings 206 are connected to the two side frames 101 in a buckling manner, two groups of supporting rods 102 arranged in an X shape are fixedly connected between the two side frames 101, the two supporting rods 102 in the same group are fixedly connected through screws 104, the supporting mechanism 1 further comprises universal wheels 103 and a ladder 105, the two universal wheels 103 are mounted at the bottoms of the two side frames 101, and the ladder 105 is mounted on the two side frames 101; constructor is when setting up the scaffold frame, with two side bearer 101 is placed relatively, two fixed two sets of "X" shape structure that are between the side bearer 101 the bracing piece 102, just bracing piece 102 pass through the bolt with side bearer 101 is fixed just with two of the same side pass through between the bracing piece 102 screw 104 is fixed, two all fix on the side bearer 101 cat ladder 105 does benefit to constructor's climbing, can directly promote overall structure when removing overall structure, universal wheel 103 does benefit to overall structure's transport, tramples behind the definite position the brake of universal wheel 103 can, will bottom plate 201 passes through retaining ring 206 is fixed to two provide the strong point for the constructor on the side bearer 101.

Specifically, the lifting mechanism 4 includes a housing 401, the housing 401 is fixedly connected to the bottom plate 201, a first gear 402 and a second gear 406 are rotatably connected to the inside of the housing 401, the first gear 402 is engaged with the second gear 406, a winding disc 403 penetrating through the housing 401 is fixed to the first gear 402, a pulling rope 404 is fixedly connected to the winding disc 403, a hook 405 is fixed to the pulling rope 404, a limiting plate 408 abutting against the first gear 402 is slidably connected to the housing 401, a second spring 409 is clamped between the limiting plate 408 and the housing 401, the diameter of the first gear 402 is larger than that of the second gear 406, the cross section of the housing 401 is in an inverted "L" shape, the lifting mechanism 4 further includes a crank 407, and the crank 407 is fixed to the second gear 406; when a constructor needs to take tools or building materials at a low position on the bottom plate 201, the direction departing from the shell 401 is used for pulling the limiting plate 408, at the moment, the second spring 409 contracts, the limiting plate 408 does not limit the first gear 402 any more, at the moment, the crank 407 is directly rotated to drive the second gear 406 to drive the first gear 402 to rotate, so that the winding disc 403 is used for paying off the pull rope 404, the conflicting constructor can hang the tools and the building materials on the hook 405, the limiting plate 408 is loosened, the second spring 409 is unfolded, the limiting plate 408 limits the first gear 402 again, the first gear 402 is rotated and wound while the pull rope 404 is rotated, the building materials are prevented from falling, the ladder 105 does not need to be climbed repeatedly, and construction safety is improved.

Specifically, the fixing mechanism 6 includes two fixing strips 601, the protection mechanism 5 is relatively and fixedly connected with the two fixing strips 601, the opposite sides of the two fixing strips 601 are provided with second buckling holes 602, the protection mechanism 5 includes a protection plate 501, the protection plate 501 is rotatably connected between the two fixing strips 601, the left and right ends of the inside of the protection plate 501 are connected with two clamping columns 502 in a sliding manner in a reverse direction, a third spring 506 is clamped between the clamping column 502 and the protection plate 501, a handle 507 is fixed on the clamping column 502, two side frames 101 are both connected with screw rods 503 in a sliding manner, the screw rods 503 are in threaded connection with a steering wheel 504, and the two screw rods 503 are both provided with first buckling holes 505; when a constructor constructs on the bottom plate 201, the constructor can rotate the steering wheel 504 on the two screw rods 503 to adjust the extending length of the screw rods 503, the steering wheel 504 always abuts against the top of the side frame 101 when adjusting, the screw rods 503 can be prevented from falling off, the protection plate 501 is rotated to relatively press the two handles 507, then the two third springs 506 are contracted, the two clamping columns 502 are further contracted into the protection plate 501, the handles 507 are loosened when the protection plate 501 is parallel to the screw rods 503, at the moment, the third springs 506 are restored and buckled into the first buckling holes 505 on the side walls of the screw rods 503, the protection during construction is realized, the protection plate 501 can also be buckled into the second buckling holes 602 on the side walls of the fixing strips 601 through the clamping columns 502, the placement of tools and building materials is facilitated, and the constructor can walk on the bottom plate 201.

When the scaffold is used, firstly, when a constructor builds a scaffold, two side frames 101 are oppositely arranged, two groups of support rods 102 in an X-shaped structure are fixed between the two side frames 101, the support rods 102 are fixed with the side frames 101 through bolts, the two support rods 102 on the same side are fixed through screws 104, the two side frames 101 are both fixedly provided with the ladder stands 105, climbing of constructors is facilitated, the integral structure can be directly pushed when the integral structure is moved, the universal wheels 103 are beneficial to carrying of the integral structure, after the position is determined, the brakes of the universal wheels 103 are stepped, and the bottom plate 201 is fixed on the two side frames 101 through the retaining rings 206 to provide support points for the constructor;

then, when a constructor constructs a wall at the same position on the bottom plate 201 for a long time, the constructor can adjust the position of the sliding base 304 by sitting on the sliding base 304, when the constructor is on the bottom plate 201, the constructor only needs to apply no force to the sliding base 304, at the moment, the first spring 205 at the bottom of the sliding block 204 is in an open state, the L-shaped part of the sliding block 203 is in contact with the bottom surface of the bottom plate 201, at the moment, the sliding block 203 can horizontally move on the bottom plate 201, the sliding block 204 is matched with the sliding groove 202 to limit the position of the sliding block 203, after the position is determined, the constructor can directly sit on the sliding base 304, the construction is facilitated, the comfort level during the construction is improved, the sliding groove 202 is in an inverted 'convex' structure, the first spring 205 is prevented from being crushed, the constructor can adjust the height of the sliding base 304 as required, only needs to rotate the lead screw 303 on the partition plate 302 during the adjustment, the extension and the sleeve 305 is realized after the lead screw 303 rotates clockwise or anticlockwise, the height adjustment of the sliding base 304 is further realized, and the construction is facilitated;

then, when a constructor needs to take tools or building materials at a low position on the bottom plate 201, the constructor can pull the limit plate 408 in a direction departing from the shell 401, at the moment, the second spring 409 contracts, the limit plate 408 does not limit the first gear 402 any more, at the moment, the crank 407 is directly rotated to enable the second gear 406 to drive the first gear 402 to rotate, so that the winding disc 403 can unwind the pull rope 404, the conflicting constructor can hang the tools and the building materials on the hook 405, the limit plate 408 is loosened, the second spring 409 opens, and the limit plate 408 limits the first gear 402 again, so that the first gear 402 can rotate to wind the pull rope 404 to limit the pull rope, the building materials are prevented from falling off, the ladder 105 does not need to climb repeatedly, and the construction safety is improved;

finally, when a constructor constructs on the bottom plate 201, the rudder disks 504 on the two screws 503 can be rotated to adjust the extending length of the screws 503, the rudder disks 504 always abut against the tops of the side frames 101 when adjusting, the screws 503 can be prevented from falling off, the protection plate 501 is rotated to relatively extrude the two handles 507, then the two third springs 506 are contracted, the two clamping columns 502 are contracted into the protection plate 501, when the protection plate 501 is parallel to the screws 503, the handles 507 are loosened, at the moment, the third springs 506 are reset and buckled into the first buckling holes 505 on the side walls of the screws 503, protection during construction is achieved, the protection plate 501 can be buckled into the second buckling holes 602 on the side walls of the fixing strips 601 through the clamping columns 502, placement of tools and building materials is facilitated, and the constructor can walk on the bottom plate 201.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The engineering construction scaffold is characterized by comprising a supporting mechanism (1), wherein a limiting mechanism (2) is arranged on the supporting mechanism (1), a rest mechanism (3) for workers to rest during construction is installed on the limiting mechanism (2), a protection mechanism (5) for protecting the workers is installed on the supporting mechanism (1), a fixing mechanism (6) is arranged on the protection mechanism (5), the protection mechanism (5) is rotatably connected with the fixing mechanism (6), and a lifting mechanism (4) for taking low building materials is installed on the limiting mechanism (2);

the limiting mechanism (2) comprises a bottom plate (201), the supporting mechanism (1) is connected with the bottom plate (201) through a retaining ring (206) in a buckling mode, the bottom plate (201) is provided with two sliding grooves (202) in a relatively-opened mode, the bottom plate (201) is connected with a sliding plate (203) in a sliding mode, the sliding plate (203) is connected with two sliding blocks (204) in a sliding mode, the bottom of each sliding block (204) is fixedly connected with a first spring (205) abutting against the bottom plate (201), the rest mechanism (3) comprises a fixed frame (301), the sliding plate (203) is connected with a fixed frame (301) in a rotating mode, a partition plate (302) is fixed on the fixed frame (301), a lead screw (303) is connected on the partition plate (302) in a rotating mode, a sliding seat (304) is connected on the fixed frame (301) in a sliding mode, the bottom of the sliding seat (304) is fixedly connected with a sleeve (305) penetrating through the fixed frame (301), and the lead screw (303) is connected with the sleeve (305) in a threaded mode;

the minimum inner diameter of the sliding plate (203) is larger than the thickness of the bottom plate (201), and the cross sections of the two sides of the sliding plate (203) are both L-shaped structures; the section of the sliding seat (304) is of an inverted U-shaped structure, and the top of the sliding seat (304) is arranged in parallel with the fixing frame (301);

the supporting mechanism (1) comprises two side frames (101), two groups of retaining rings (206) are connected to the two side frames (101) in a buckling mode, two groups of supporting rods (102) arranged in an X shape are fixedly connected between the two side frames (101), and the two supporting rods (102) in the same group are fixedly connected through screws (104); the supporting mechanism (1) further comprises universal wheels (103) and a ladder stand (105), the bottoms of the two side frames (101) are respectively provided with the two universal wheels (103), and the ladder stands (105) are respectively arranged on the two side frames (101);

the fixing mechanism (6) comprises two fixing strips (601), the two fixing strips (601) are relatively and fixedly connected to the protection mechanism (5), and second buckling holes (602) are formed in the opposite sides of the two fixing strips (601);

protection machanism (5) are including guard plate (501), two it is connected with guard plate (501) to rotate between fixed strip (601), the inside sliding connection that backs the body of guard plate (501) has two card posts (502) mutually, centre gripping has third spring (506) between card post (502) and guard plate (501), be fixed with handle (507) on card post (502), two equal sliding connection has screw rod (503) on side bearer (101), threaded connection has steering wheel (504) on screw rod (503), two first knot hole (505) have all been seted up on screw rod (503).

2. An engineering construction scaffold according to claim 1, characterized in that: lifting mechanism (4) include shell (401), fixedly connected with shell (401) on bottom plate (201), the inside rotation of shell (401) is connected with first gear (402) and second gear (406), mesh between first gear (402) and the second gear (406), be fixed with roll-up dish (403) that run through shell (401) on first gear (402), fixedly connected with stay cord (404) on roll-up dish (403), be fixed with couple (405) on stay cord (404), sliding connection has limiting plate (408) of contradicting with first gear (402) on shell (401), centre gripping has second spring (409) between limiting plate (408) and shell (401).

3. An engineering construction scaffold according to claim 2, wherein: the diameter of the first gear (402) is larger than that of the second gear (406), and the cross section of the shell (401) is of an inverted L-shaped structure.

4. An engineering construction scaffold according to claim 2, wherein: the lifting mechanism (4) further comprises a crank (407), and the crank (407) is fixed on the second gear (406).