CN113833246A

CN113833246A - Scaffold for engineering

Info

Publication number: CN113833246A
Application number: CN202111150271.1A
Authority: CN
Inventors: 褚天云
Original assignee: Jiaxing Tiankun Construction Engineering Design Co ltd
Current assignee: Jiaxing Tiankun Construction Engineering Design Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-12-24
Anticipated expiration: 2041-09-29
Also published as: CN113833246B

Abstract

The invention relates to a scaffold for engineering, which comprises a base and a platform unit, wherein the platform unit is arranged on the base. The invention can solve the problems existing at present: the existing scaffold is formed by mutually assembling each part when in use, the efficiency of construction in the process of engineering construction is higher, a lot of places for using the scaffold are needed, therefore, the scaffold needs to be moved to and away from, the scaffold needing to be assembled on site can lead to the reduction of the construction efficiency, the scaffold is not beneficial to the use in the engineering construction process, the scaffold needs to lift workers to the specified height when in use so as to facilitate the normal construction, the existing scaffold does not have corresponding protective measures, building wastes can be present in the construction process, tools and the risk of worker falling, corresponding protective measures are not available, safety problems can be brought to the workers on the scaffold, and safety problems can be brought to the workers around the scaffold.

Description

Scaffold for engineering

Technical Field

The invention relates to the field of scaffold design, in particular to a scaffold for engineering.

Background

The scaffold is a temporary building tool which is erected for workers to operate and solve vertical and horizontal transportation on a construction site, and is mainly used for outer walls, interior decoration or places with higher floor height and incapable of being directly constructed. The safety net is mainly used for up-and-down operation of constructors or enclosure of a peripheral safety net, high-altitude installation of components and the like, and is widely used in the departments of advertising industry, municipal administration, traffic roads and bridges, mines and the like.

When the scaffold for engineering is designed at present, the following problems exist: the scaffold frame is characterized in that the scaffold frame comprises a plurality of parts, wherein the parts are assembled with each other, the efficiency of construction is higher in the process of engineering construction, and a plurality of places for using the scaffold frame are provided, so that the scaffold frame needs to be moved, and the scaffold frame needing to be assembled on site can reduce the construction efficiency and is not beneficial to use in the process of engineering construction.

The scaffold needs to be lifted to a specified height when in use so as to facilitate normal construction, corresponding protective measures are not designed for the existing scaffold, construction waste, tools and workers can fall off in the construction process, and the scaffold does not have the corresponding protective measures, so that safety problems can be brought to the workers on the scaffold and the workers around the scaffold.

Disclosure of Invention

The invention aims to provide an engineering scaffold to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a scaffold frame for engineering, includes base and platform unit, is provided with the platform unit on the base.

The base is a rectangular flat plate structure, four corners of the lower surface of the base are provided with universal rollers, and the four corners of the base are provided with positioning assemblies.

The platform unit comprises support columns, support rods, support slide rails, support blocks, support plates, adjustment support rods, adjustment slide ways, adjustment sliders and adjustment connecting rods, wherein the support columns are arranged at four corners of the upper surface of the base, the support rods are arranged at the upper ends of the support columns, the support slide rails are arranged on the support columns and the support rods, the support columns and the upper support slide rails of the support rods are vertically in one-to-one correspondence, the support blocks are arranged on the support slide rails in a sliding manner, the support plates are jointly installed between the four support blocks through bolts, the adjustment support rods are installed between the support columns at the left and right opposite positions and between the support blocks at the left and right opposite positions, the adjustment slide ways are respectively arranged on the opposite surfaces of the two adjustment support rods at the upper and lower opposite positions, the adjustment sliders are symmetrically arranged at two ends of the adjustment slide ways in a sliding manner, and the adjustment connecting rods are jointly hinged between the two pairs of adjustment sliders at the upper and lower opposite positions, the adjusting connecting rod is of a scissor-fork type telescopic structure.

The adjusting slide rail is arranged below, an adjusting lead screw is arranged in the adjusting slide rail in the lower portion, the adjusting slide blocks in the adjusting slide rail in the lower portion are connected with the adjusting lead screw through threads, the thread rotating directions of the two adjusting slide blocks and the adjusting lead screw are opposite, adjusting motors are symmetrically arranged at the front and back of the left end of the upper surface of the base, and the adjusting lead screw is connected with the output end of the adjusting motors.

As a further scheme of the invention: the locating component comprises a locating slide bar, a locating press block, a spring, a locating block, a locating support rod, a hydraulic cylinder and a locating press rod, four corners of the base are all provided with the locating slide bar in an up-down sliding mode, the locating press block is installed at the upper end of the locating slide bar, a spring is connected between the lower surface of the upper surface of the base and the lower surface of the locating press block, the locating block is installed at the lower end of the locating slide bar, the locating support rod is installed at the corner of the upper surface of the base and at the position between the locating slide bars, one side, far away from the locating support rod, of the locating slide bar is provided with the hydraulic cylinder, the upper surface of the base is fixedly connected with the hydraulic cylinder, the upper end of the locating support rod and the output end of the hydraulic cylinder are hinged together with the locating press rod, and the locating press rod is in contact with the locating press rod.

As a further scheme of the invention: the locating piece is formed by the right angle limit mutually perpendicular welding of two isosceles right triangle sets, and the relative position's about the set square around and the set square all is splayed structure and arranges.

As a further scheme of the invention: the support column upper end and the bracing piece lower extreme pass through hinged joint, and the support column up end has seted up convex locking way, and the terminal surface is provided with convex locking inserted bar under the bracing piece, and locking way is pegged graft with the locking inserted bar cooperation, and the support column side slides and pegs graft and has the fitting pin, and the locking inserted bar passes through threaded connection with the fitting pin.

As a further scheme of the invention: the utility model discloses a protection slide, including the bracing piece, the bracing piece is provided with protection slide on the bracing piece, slide in the protection slide and be provided with two protection branch, and the contained angle is between two protection branch, and protection slide and protection branch junction are provided with a torsional spring, all is connected with elastic protection network between the protection branch of relative position around on four bracing pieces and between the protection branch of relative position about and between the protection branch of relative position, is provided with the rack on the protection branch, a rack is circular arc type structure, is provided with No. two racks on the supporting shoe, and No. two springs are installed to rack and No. two rack intermeshing on the protection slide, No. two springs, supporting shoe and No. two spring contacts.

As a further scheme of the invention: a plurality of slag leaking holes are uniformly formed in the supporting plate, anti-skid lugs are arranged between the four slag leaking holes in the adjacent positions, and the cross sections of the anti-skid lugs are of a diamond structure.

As a further scheme of the invention: the door plate is arranged on the supporting plate through a hinge, the ladder is arranged on the adjusting connecting rod, and the door plate corresponds to the upper end of the ladder.

In addition, a method for using the scaffold for engineering is also provided, which comprises the following steps: s1, when the platform unit is in the initial state, the platform unit is in the superposition state, the universal roller on the lower surface of the base is in contact with the ground, and then the base is moved to a construction site.

S2, when the job site, with the bracing piece pendulum to vertical state, and use the fitting pin to lock support column and bracing piece, drive the regulation lead screw through adjusting the motor and rotate after that, it drives the regulation slider and is close to each other to adjust the lead screw rotation, the mutual approaching of regulation slider makes the regulation connecting rod jack-up the backup pad gradually, in-process that the backup pad rose, the supporting shoe can push up the protection slider, make the protection network open and be certain inclination, along with the rise of regulation connecting rod, the ladder also is the tilt state gradually, rise to the assigned height up to the backup pad, alright in order to stop the adjustment motor.

S3, during construction, the worker can ascend from the ladder to the supporting plate and upwards open the door plate, the worker can reach the upper surface of the supporting plate to start construction, and tools and materials required in the construction process can be conveyed to the supporting plate from the ladder through the door plate.

And S4, after the construction is finished, the worker returns to the ground from the support plate through the door plate and the ladder, and finally the platform unit is folded back to the initial state.

Compared with the prior art, the invention has the following advantages: 1. the platform unit designed by the invention can not only realize the lifting in the vertical direction, but also be folded and stored when the platform unit needs to be moved to different construction sites, so that the platform unit is convenient to move, and the platform unit is fast to unfold when being used, thereby effectively saving the time required by scaffold building and improving the efficiency of engineering construction.

2. The protective net designed by the invention can intercept construction waste and tools falling in the construction process, prevent the construction waste and the tools from injuring workers on the ground, and also prevent the workers on the scaffold from falling, thereby protecting the safety of the workers.

3. According to the support plate designed by the invention, the surface of the support plate is provided with the slag leakage hole and the anti-slip bump, so that the slipping problem caused by sand grains adhered to the sole of a worker can be prevented, and the personal safety of the worker is protected.

4. The supporting block designed by the invention can support the scaffold more stably due to the matching of the special structure of the supporting block and the supporting block at the adjacent position.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of the present invention from a first perspective.

Fig. 2 is a perspective view of the present invention from a second perspective.

Fig. 3 is an enlarged schematic view of fig. 2 at a.

Fig. 4 is a schematic perspective view of the support column of the present invention.

Fig. 5 is a perspective view of the support plate of the present invention.

Fig. 6 is a schematic perspective view of the protection slider of the present invention.

Fig. 7 is a perspective view of the support block of the present invention.

Fig. 8 is a schematic perspective view of the positioning block of the present invention.

In the figure: 1. a base; 10. a universal roller; 12. a positioning assembly; 120. positioning the slide bar; 121. positioning a pressing block; 122. a first spring; 123. positioning blocks; 124. positioning the supporting rod; 125. a hydraulic cylinder; 126. positioning the compression bar; 127. a set square; 2. a platform unit; 20. a support pillar; 200. locking the channel; 201. locking the inserted rod; 202. a locking pin; 21. a support bar; 210. a protective slideway; 211. a protective slider; 212. a protective strut; 213. a protective net; 214. a first rack; 215. a second rack; 216. a second spring; 22. supporting the slide rail; 23. a support block; 24. a support plate; 240. a slag leakage hole; 241. an anti-slip bump; 242. a door panel; 243. a ladder; 25. adjusting the supporting rod; 26. adjusting the slide way; 260. adjusting the lead screw; 261. adjusting the motor; 27. adjusting the sliding block; 28. and adjusting the connecting rod.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

Referring to fig. 1 to 8, a scaffold for engineering includes a base 1 and a platform unit 2, wherein the platform unit 2 is disposed on the base 1.

Referring to fig. 1 and 2, the platform unit 2 includes a support column 20, a support rod 21, a support slide rail 22, a support block 23, a support plate 24, an adjustment support rod 25, an adjustment slide rail 26, an adjustment slider 27 and an adjustment connecting rod 28, the support column 20 is disposed at four corners of the upper surface of the base 1, the support rod 21 is disposed at the upper end of the support column 20, the support slide rail 22 is disposed on each of the support column 20 and the support rod 21, the support column 20 and the upper support slide rail 22 of the support rod 21 are vertically in one-to-one correspondence, the support block 23 is slidably disposed on the support slide rail 22, the support plates 24 are mounted between the four support blocks 23 through bolts, the adjustment support rods 25 are mounted between the support columns 20 at left and right opposite positions and between the support blocks 23 at left and right opposite positions, the adjustment slide rail 26 is disposed on the opposite surfaces of the two adjustment support rods 25 at the upper and lower opposite positions, the adjustment slide rail 26 is symmetrically slidably disposed at two ends of the adjustment slide rail 26, and articulated jointly have the adjusting link 28 between two pairs of adjusting slide blocks 27 of relative position from top to bottom, adjusting link 28 is scissors fork extending structure, is located the below adjusting slide 26 internal rotation that is provided with adjusts lead screw 260, and adjusting slide block 27 in adjusting slide 26 that is located the below passes through threaded connection with adjusting lead screw 260, and two adjusting slide blocks 27 and the screw direction of rotation between adjusting lead screw 260 are opposite, and base 1 upper surface left end longitudinal symmetry is provided with adjusting motor 261, and adjusting lead screw 260 is connected with adjusting motor 261 output.

Referring to fig. 4, the upper end of the supporting column 20 is connected with the lower end of the supporting rod 21 through a hinge, the upper end surface of the supporting column 20 is provided with an arc-shaped locking channel 200, the lower end surface of the supporting rod 21 is provided with an arc-shaped locking inserted rod 201, the locking channel 200 is inserted into the locking inserted rod 201 in a matching manner, the side surface of the supporting column 20 is inserted into a locking pin 202 in a sliding manner, and the locking inserted rod 201 is connected with the locking pin 202 through a thread.

During specific work, in an initial state, the included angle between the support rod 21 relatively bent at the left and right opposite positions and the support column 20 is 90 degrees, the adjusting connecting rod 28 is at the lowest state at the moment, the support block 23 is positioned on the support slide rail 22 on the support column 20, when the support plate 24 needs to be used, the support rod 21 is righted to be in a vertical state, in the righting process, the locking inserted rod 201 is gradually inserted into the locking channel 200, when the support rod 21 is completely in the vertical state, the locking inserted rod 201 and the locking channel 200 are completely locked by the locking pin 202, so that the stability of the support rod 21 is ensured, the adjusting motor 261 starts to work, the adjusting motor 261 drives the adjusting screw 260 to rotate, the rotation of the adjusting screw 260 drives the two adjusting slide blocks 27 positioned in the same adjusting slide rail 26 to be close to each other, the adjusting connecting rod 28 is gradually unfolded and lifted, and the support block 23 on the support slide rail 22 on the support column 20 is jacked to the support rail 22 on the support rod 21 After the supporting plate 24 rises to a specified height, the rotation of the adjusting motor 261 can be stopped, and the distance between the adjusting sliders 27 is locked under the action of the adjusting screw 260, so that the stability of the supporting plate 24 is ensured, and then a worker can start construction operation on the supporting plate 24.

Referring to fig. 2, 6 and 7, a protection slide 210 is provided on the support rod 21, a protection slide 211 is slidably provided in the protection slide 210, two protection support rods 212 are rotatably provided on the protection slide 211, an included angle between the two protection support rods 212 is 90 °, a first torsion spring is provided at a joint of the protection slide 211 and the protection support rods 212, elastic protection nets 213 are respectively connected between the protection support rods 212 at front and rear opposite positions and between the protection support rods 212 at left and right opposite positions on the four support rods 21, a first rack 214 is provided on the protection support rods 212, the first rack 214 is in an arc structure, a second rack 215 is provided on the support block 23, the first rack 214 and the second rack 215 are engaged with each other, a second spring 216 is installed on the protection slide 211, and the support block 23 is in contact with the second spring 216.

During specific work, when the supporting block 23 moves from the supporting column 20 to the supporting rod 21, the second rack 215 on the supporting block 23 contacts with the first rack 214 on the protective sliding block 211, then the second rack 215 moves upwards continuously to drive the protective supporting rod 212 to rotate around the joint with the protective sliding block 211 through meshing with the first rack 214, the protective supporting rod 212 gradually moves out of the protective sliding way 210 to form a certain angle with the supporting rod 21, the protective supporting rod 212 expands to drive the protective supporting rod 213 to expand together, the first rack 214 cannot be meshed with the second rack 215 until the supporting block 23 contacts with the second spring 216, and then construction waste, tools or workers fall onto the protective net 213, so that the construction waste, the tools or the workers are separated under the elastic force of the protective net 213 and the second spring 216.

Referring to fig. 5, a plurality of slag leakage holes 240 are uniformly formed in the support plate 24, and anti-skid bumps 241 are arranged between four adjacent slag leakage holes 240, and the cross section of each anti-skid bump 241 is of a diamond structure; during specific work, the slag leakage holes 240 can facilitate falling of crushed materials of construction wastes, the anti-slip bumps 241 can prevent soles of workers from slipping, the soles of the workers can be scraped, and gravels adhered to the soles are scraped, so that the workers are prevented from slipping, and personal safety of the workers is protected.

Referring to fig. 2, a door plate 242 is hinged to the support plate 24, a ladder 243 is disposed on the adjusting link 28, and the door plate 242 corresponds to the upper end of the ladder 243; during specific work, the door plate 242 can only be opened upwards, and the ladder 243 is matched with the use, so that not only is the upper and lower support plates 24 convenient for workers to mount and dismount, but also the upper and lower support plates 24 convenient for articles needed in the construction process.

Example 2

On the basis of the above embodiment 1, referring to fig. 1, the base 1 is a rectangular flat plate structure, the four corners of the lower surface of the base 1 are all provided with the universal rollers 10, and the four corners of the base 1 are all provided with the positioning assemblies 12.

Referring to fig. 3 and 8, the positioning assembly 12 includes a positioning slide bar 120, a positioning press block 121, a first spring 122, a positioning block 123, a positioning support bar 124, a hydraulic cylinder 125 and a positioning press bar 126, the positioning slide bar 120 is disposed at four corners of the base 1 in a vertically sliding manner, the positioning press block 121 is mounted at the upper end of the positioning slide bar 120, the first spring 122 is connected between the upper surface of the base 1 and the lower surface of the positioning press block 121, the positioning block 123 is mounted at the lower end of the positioning slide bar 120, the positioning support bar 124 is mounted at a position between the corner of the upper surface of the base 1 and the positioning slide bar 120, the hydraulic cylinder 125 is disposed at one side of the positioning slide bar 120 away from the positioning support bar 124, the upper surface of the base 1 is fixedly connected with the hydraulic cylinder 125, the positioning press bar 126 is jointly hinged between the upper end of the positioning support bar 124 and the output end of the hydraulic cylinder 125, and the positioning press block 121 is in contact with the positioning press bar 126.

Referring to fig. 8, the positioning block 123 is formed by vertically welding right-angle sides of two isosceles right-angle triangles 127, and the triangles 127 at the front and back opposite positions and the triangles 127 at the left and right opposite positions are arranged in a splayed structure.

When the universal roller 10 is used for concrete work, when the base 1 needs to be moved to a specified construction position, the universal roller can play a role in assisting movement, after the base 1 moves to the designated position, the hydraulic cylinder 125 contracts, the contraction of the hydraulic cylinder 125 will pull the end connected with the positioning pressure rod 126 to move downwards, then the positioning pressing rod 126 will press down the positioning pressing block 121, so that the positioning sliding rod 120 slides up and down in the base 1, the first spring 122 will be compressed, in the process of moving down the positioning slide rod 120, the positioning blocks 123 gradually contact with the ground, and then the base 1 is reversely jacked up under the combined action of the four positioning blocks 123, so that the universal roller 10 gradually disengages from the ground, and then the positioning block 123 will support the base 1 and the whole platform unit 2, due to the structural characteristics of the positioning block 123, the base 1 can be stably supported in all directions, thereby ensuring the stability of the platform unit 2.

Example 3

On the basis of the above embodiment 1 and embodiment 2, a method for using the scaffold for engineering includes the following steps:

in actual operation: step S1, in an initial state, the platform unit 2 is in an overlapped state, when the base 1 needs to be moved to a specified construction position, the universal roller 10 can play a role in assisting movement, after the base 1 moves to the specified position, the hydraulic cylinder 125 contracts and pulls one end, connected with the positioning pressure rod 126, of the positioning pressure rod to move downwards, then the positioning pressure rod 126 can press the positioning pressure block 121 downwards, the positioning slide rod 120 slides upwards and downwards in the base 1, the first spring 122 can be compressed, in the process that the positioning slide rod 120 moves downwards, the positioning block 123 gradually contacts with the ground, then the base 1 can be jacked reversely under the combined action of the four positioning blocks 123, the universal roller 10 gradually breaks away from the ground, and then the positioning block 123 can support the base 1 and the whole platform unit 2.

S2, in a construction site, in an initial state, the support rod 21 at the left and right opposite positions is relatively bent to form an included angle of 90 degrees with the support column 20, the adjusting connecting rod 28 is at the lowest state at the moment, the support block 23 is positioned on the support slide rail 22 on the support column 20, when the support plate 24 needs to be used, the support rod 21 is righted to be in a vertical state, in the righting process, the locking inserted rod 201 is gradually inserted into the locking channel 200, when the support rod 21 is completely in the vertical state, the locking inserted rod 201 and the locking channel 200 are completely locked by using the locking pin 202, then the adjusting motor 261 starts to work, the adjusting motor 261 drives the adjusting screw 260 to rotate, the rotation of the adjusting screw 260 drives the two adjusting slide blocks 27 in the same adjusting slide rail 26 to approach each other, so that the adjusting connecting rod 28 gradually rises, and the support block 23 on the support slide rail 22 on the support column 20 is jacked to the support slide rail 22 on the support rod 21, after the support plate 24 is raised to a predetermined height, the rotation of the adjustment motor 261 is stopped.

And S3, during construction, a worker can ascend from the ladder 243 to the support plate 24 and upwards open the door panel 242, the worker can reach the upper surface of the support plate 24 to start construction, and tools and materials required in the construction process can be conveyed to the support plate 24 from the ladder 243 through the door panel 242.

And S4, after the construction is finished, the worker returns to the ground from the support plate 24 through the door plate 242 and the ladder 243, and finally the platform unit 2 is folded back to the initial state.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a scaffold frame for engineering, includes base (1) and platform unit (2), its characterized in that: the base (1) is provided with a platform unit (2); wherein:

the base (1) is of a rectangular flat plate structure, universal rollers (10) are arranged at four corners of the lower surface of the base (1), and positioning assemblies (12) are arranged at the four corners of the base (1);

the platform unit (2) comprises support columns (20), support rods (21), support slide rails (22), support blocks (23), support plates (24), adjusting support rods (25), adjusting slide rails (26), adjusting sliders (27) and adjusting connecting rods (28), wherein the support columns (20) are arranged at four corners of the upper surface of the base (1), the support rods (21) are arranged at the upper ends of the support columns (20), the support slide rails (22) are arranged on the support columns (20) and the support rods (21), the support columns (20) and the upper support slide rails (22) of the support rods (21) are vertically in one-to-one correspondence, the support blocks (23) are arranged on the support slide rails (22) in a sliding manner, the support plates (24) are jointly installed among the four support blocks (23) through bolts, the adjusting support rods (25) are installed between the support columns (20) at left and right relative positions and between the support blocks (23) at left and right relative positions, the opposite surfaces of the two adjusting support rods (25) at the upper and lower opposite positions are respectively provided with an adjusting slide way (26), two ends of each adjusting slide way (26) are symmetrically provided with an adjusting slide block (27) in a sliding manner, an adjusting connecting rod (28) is hinged between the two pairs of adjusting slide blocks (27) at the upper and lower opposite positions, and each adjusting connecting rod (28) is of a scissor-fork type telescopic structure;

be located the below adjust slide (26) internal rotation and be provided with regulation lead screw (260), be located the regulation slider (27) in the regulation slide (26) of below and adjust lead screw (260) through threaded connection, and two screw thread direction of rotation between slider (27) and the regulation lead screw (260) of adjusting, base (1) upper surface left end longitudinal symmetry is provided with adjustment motor (261), adjusts lead screw (260) and is connected with adjustment motor (261) output.

2. An engineering scaffold according to claim 1, wherein: the positioning component (12) comprises a positioning slide bar (120), a positioning pressing block (121), a first spring (122), a positioning block (123), a positioning support rod (124), a hydraulic cylinder (125) and a positioning pressing rod (126), the positioning slide bar (120) is arranged at four corners of the base (1) in a vertically sliding mode, the positioning pressing block (121) is installed at the upper end of the positioning slide bar (120), the first spring (122) is connected between the upper surface of the base (1) and the lower surface of the positioning pressing block (121), the positioning block (123) is installed at the lower end of the positioning slide bar (120), the positioning support rod (124) is installed between the corner of the upper surface of the base (1) and the positioning slide bar (120), the hydraulic cylinder (125) is arranged at one side of the positioning slide bar (120) far away from the positioning support rod (124), the upper surface of the base (1) is fixedly connected with the hydraulic cylinder (125), the positioning pressing rod (126) is hinged between the upper end of the positioning support rod (124) and the output end of the hydraulic cylinder (125), the positioning pressing block (121) is contacted with the positioning pressing rod (126).

3. An engineering scaffold according to claim 2, wherein: the positioning block (123) is formed by mutually vertically welding right-angle sides of two isosceles right-angle triangular plates (127), and the triangular plates (127) at the front and back opposite positions and the triangular plates (127) at the left and right opposite positions are arranged in a splayed structure.

4. An engineering scaffold according to claim 1, wherein: the upper end of the supporting column (20) is connected with the lower end of the supporting rod (21) through a hinge, the upper end face of the supporting column (20) is provided with a circular arc-shaped locking channel (200), the lower end face of the supporting rod (21) is provided with a circular arc-shaped locking inserted rod (201), the locking channel (200) is matched and spliced with the locking inserted rod (201), the side face of the supporting column (20) is slidably spliced with a locking pin (202), and the locking inserted rod (201) is connected with the locking pin (202) through threads.

5. An engineering scaffold according to claim 1, wherein: the protective slide way (210) is arranged on the supporting rod (21), the protective slide block (211) is arranged in the protective slide way (210) in a sliding manner, the protective slide block (211) is provided with two protective supporting rods (212) in a rotating manner, an included angle between the two protective supporting rods (212) is 90 degrees, a first torsion spring is arranged at the joint of the protective slide block (211) and the protective supporting rods (212), elastic protective meshes (213) are connected between the protective supporting rods (212) at the front and back relative positions and between the protective supporting rods (212) at the left and right relative positions on the four supporting rods (21), a first rack (214) is arranged on the protective supporting rods (212), the first rack (214) is of an arc structure, a second rack (215) is arranged on the supporting block (23), the first rack (214) is meshed with the second rack (215), and a second spring (216) is arranged on the protective slide block (211), the supporting block (23) is contacted with the second spring (216).

6. An engineering scaffold according to claim 1, wherein: a plurality of slag leakage holes (240) are uniformly formed in the supporting plate (24), anti-skid lugs (241) are arranged between the four slag leakage holes (240) at adjacent positions, and the cross sections of the anti-skid lugs (241) are of a diamond structure.

7. An engineering scaffold according to claim 1, wherein: the door plate (242) is arranged on the support plate (24) through a hinge, the ladder (243) is arranged on the adjusting connecting rod (28), and the door plate (242) corresponds to the upper end of the ladder (243).

8. An engineering scaffold according to any one of claims 1 to 7, wherein: the method for using the scaffold for engineering comprises the following steps:

s1, when in an initial state, the platform unit (2) is in an overlapped state, the universal roller (10) on the lower surface of the base (1) is in contact with the ground, and then the base (1) is moved to a construction site;

s2, when the support column is in a construction site, the support column (21) is placed in a vertical state, the support column (20) and the support column (21) are locked by the locking pin (202), then the adjusting screw rod (260) is driven to rotate by the adjusting motor (261), the adjusting screw rod (260) rotates to drive the adjusting sliders (27) to approach each other, the adjusting sliders (27) approach each other to enable the adjusting connecting rod (28) to gradually jack up the support plate (24), in the ascending process of the support plate (24), the support block (23) jacks up the protecting sliders (211) to enable the protective net (213) to be opened and inclined, along with the ascending of the adjusting connecting rod (28), the ladder (243) is gradually inclined until the support plate (24) rises to a designated height, and the adjusting motor (261) can be stopped;

s3, during construction, a worker can ascend from the ladder 243 to the support plate 24 and open the door panel 242 upwards, the worker can reach the upper surface of the support plate 24 for construction, and tools and materials required in the construction process can be conveyed to the support plate 24 from the ladder 243 through the door panel 242;

and S4, after construction is finished, the worker returns to the ground from the support plate (24) through the door plate (242) and the ladder (243), and finally the platform unit (2) is folded back to the initial state.