A steel support platform suitable for heavy loads and its construction method

Abstract

The present invention discloses a steel support platform suitable for heavy loads and a construction method thereof, which includes box-type structure processing: stiffening plate assembly and bracket assembly welding, and box-type steel column longitudinal welding to expand the lower cross-section of the steel column; steel column positioning: setting out the frame column position and using it as the precise positioning of the steel column position, so that the steel column is set on the top of the frame column to avoid eccentricity; steel column fixing: pre-embedded chemical anchor bolts in the concrete, and the steel column is fixed by the chemical anchor bolts; steel beam connection: the primary and secondary beams are connected by a fixing device. The present invention uses a steel support platform instead of a floor slab to bear the load, and can withstand heavy loads; the steel column position corresponds to the frame column position, and the steel column accurately transfers the load to the frame column structure, avoiding the weak stress position, with strong bearing capacity and high safety; the primary and secondary beams are connected by a connecting device, which is convenient for construction and can be recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of steel support platforms, in particular to a steel support platform suitable for heavy loads and a construction method thereof. Background Art

[0002] Construction sites often require the use of roof slabs as temporary roads for vehicular traffic. The mobile cranes used to transport construction materials are often heavy, but the basement roof is typically designed to accommodate a limited weight of vehicles. Therefore, a balance between the crane's travel needs and the roof's safety is crucial. Changing the crane's route due to insufficient roof load capacity could hinder construction and potentially delay the project. Conventional steel pipe support beneath the roof requires labor and materials, consumes space below, and reduces space utilization, hindering both time and cost savings. Therefore, finding a solution that supports vehicle loads while minimizing the space below is a pressing issue. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that when a top plate is used for temporary passage of vehicles, the bearing capacity of the top plate is insufficient, and changing the driving route of the truck crane is inconvenient for construction, which may slow down the construction period; according to conventional practice, adding temporary support of steel pipes under the top plate requires labor and materials, and occupies the lower space, with low space utilization, which is not conducive to saving construction period and costs.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a construction method for a heavy-load steel support platform, which comprises:

[0007] Box structure processing: stiffening plate assembly and bracket assembly welding, box steel column longitudinal welding to expand the lower section of the steel column;

[0008] Steel column positioning: The frame column position is determined by laying out the lines and used as the precise positioning of the steel column, so that the steel column is set on the top of the frame column to avoid eccentricity;

[0009] Steel column fixing: chemical anchor bolts are embedded in the concrete, and the steel column is fixed by chemical anchor bolts;

[0010] Steel beam connection: The main and secondary beams are connected by fixing devices;

[0011] Fixing of corrugated steel plate: Lay the corrugated steel plate, then drive in bolts, which penetrate the corrugated steel plate and are welded to the steel beam;

[0012] Tie the reinforcement: Tie the top of the reinforcement to the adjacent top reinforcement, and set one in each wave groove;

[0013] Cast concrete slab and maintain.

[0014] As a preferred solution of the construction method of the steel support platform suitable for heavy loads described in the present invention, the steel columns are connected to the concrete structure through chemical anchor bolts; the steel columns are positioned at the tops of the frame columns so as to correspond to the frame columns; and the corrugated steel plates are fixed to the steel beams through connecting devices.

[0015] As a preferred solution of the construction method of the steel support platform suitable for heavy loads described in the present invention, a double-layer bidirectional steel mesh is tied on the corrugated steel plate and a concrete floor is poured, and the thickness of the concrete floor is 150 mm.

[0016] The present invention also proposes a steel support platform suitable for heavy loads, which includes a platform assembly, wherein the platform assembly includes frame columns, side beams, side span main beams and secondary beams, wherein one end of the side beams and the side span main beams are connected to the frame columns, and the secondary beams are arranged between the side beams and the side span main beams;

[0017] Installation module, the installation module includes a support installation component, a connection installation component and a positioning component, two groups of the installation modules are respectively arranged on the outside of the side beam and the side span main beam, connected to the side beam and the side span main beam through the support installation component, connected to the installation component through the positioning component, and positioned by the installation component to increase the support stability of the support installation component;

[0018] The linkage installation module includes a linkage component and an adjustment locking component. The linkage component and the adjustment locking component are movably connected, and the fixed installation of the secondary beam is completed by adjusting the locking component.

[0019] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the support installation assembly includes a sleeve rod, a screw rod and a drive nut, the drive nut is arranged on the outer wall of the sleeve rod, one end of the screw rod passes through the inner cavity of the sleeve rod, the outer wall of the screw rod is threadedly connected to the inner wall of the sleeve rod, one end of the screw rod is connected to the support plate, and the outer wall of the sleeve rod is connected to the driving gear.

[0020] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the connection and installation assembly includes an adjusting rod, a locking nut and an extrusion ring, the locking nut is arranged on the outer wall of the adjusting rod, one end of the extrusion ring is connected to the locking nut, one end of the adjusting rod is connected to the raised ring, and a through groove is provided on the surface of the raised ring.

[0021] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the inner wall of the adjusting rod is connected to a spring, one end of the spring is connected to a linkage rod, and one end of the linkage rod passes through the adjusting rod and is connected to the support plate.

[0022] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the positioning assembly includes a connecting block, a mounting block and a connecting square tube, the two ends of the connecting block are respectively connected to two adjusting rods, the mounting block is arranged on the outer wall of the connecting block, one end of the connecting square tube is connected to the mounting block, and one end of the connecting square tube passes through the inner cavity of the secondary beam.

[0023] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the linkage assembly includes a tension screw, a driven gear and a traction screw block, both ends of the tension screw are movably connected to the inner wall of the connecting square tube, the driven gear and the traction screw block are both arranged on the outer wall of the tension screw, the driven gear is rotationally connected to the driving gear, and the traction screw block is threadedly connected to the tension screw.

[0024] As a preferred solution of the steel support platform suitable for heavy loads described in the present invention, the adjustment locking assembly includes a traction rod, an adjusting bolt and a positioning rod, one end of the traction rod is connected to the traction screw block, the adjusting bolt is threadedly connected to the outer wall of the traction rod, one end of the positioning rod passes through the inner cavity of the traction rod, one end of the positioning rod passes through the connecting square tube and is connected to the extrusion plate, and a friction strip is provided on the outer wall of the extrusion plate.

[0025] Beneficial effects of the present invention:

[0026] The present invention uses a steel support platform instead of a floor slab to bear heavy loads; the position of the steel column corresponds to the position of the frame column, and the steel column accurately transfers the load to the frame column structure, avoiding weak stress positions, with strong bearing capacity and high safety; the primary and secondary beams are connected by a connecting device, which is convenient for construction and can be recycled; the cross-section of the lower end of the steel column is enlarged, with good stability, and is fixed with chemical anchor bolts, which is easy to disassemble; the corrugated steel plate is fixed to the steel beam by bolts, and the presence of the bolts increases the coupling force of the concrete, making the structure more stable.

[0027] The present invention provides a connecting device for connecting the secondary beams between the main beams, which is easy to install. There is no need to open holes on the surface of the main beam to affect the strength of the main beam. The adjustment margin is large and there is no need to impose strict requirements on the cutting size of the secondary beam, which facilitates on-site adaptation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0029] Figure 1 This is a structural diagram of the platform components in an embodiment of the present invention.

[0030] Figure 2 This is a diagram of the connection structure of the main beam and the secondary beam in an embodiment of the present invention.

[0031] Figure 3 This is a diagram showing the connection structure of the installation module and the linkage installation module in an embodiment of the present invention.

[0032] Figure 4 This is a structural diagram of the support and installation assembly in an embodiment of the present invention.

[0033] Figure 5 For the embodiment of the present invention Figure 4 A partial enlarged structural diagram at the middle Q.

[0034] Figure 6 2 is a cross-sectional view of the adjustment rod in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0038] Example 1

[0039] The first embodiment of the present invention provides a construction method for a steel support platform suitable for heavy loads, comprising:

[0040] Box structure processing: stiffening plate assembly and bracket assembly welding, box steel column longitudinal welding to expand the lower section of the steel column;

[0041] Steel column positioning: The frame column position is determined by laying out the lines and used as the precise positioning of the steel column, so that the steel column is set on the top of the frame column to avoid eccentricity;

[0042] Steel column fixing: chemical anchor bolts are embedded in the concrete, and the steel column is fixed by chemical anchor bolts;

[0043] Steel beam connection: The main and secondary beams are connected by fixing devices;

[0044] Fixing of corrugated steel plate: Lay the corrugated steel plate, then drive in bolts, which penetrate the corrugated steel plate and are welded to the steel beam;

[0045] Tie the reinforcement: Tie the top of the reinforcement to the adjacent top reinforcement, and set one in each wave groove;

[0046] Cast concrete slab and maintain.

[0047] The steel columns are connected to the concrete structure through chemical anchors;

[0048] The steel column is positioned at the top of the frame column, corresponding to the frame column;

[0049] The corrugated steel plate is fixed to the steel beam through a connecting device.

[0050] A double-layer bidirectional steel mesh is tied on the corrugated steel plate and the concrete floor is poured. The thickness of the concrete floor is 150mm.

[0051] The present invention uses a steel support platform instead of a floor slab to bear heavy loads; the position of the steel column corresponds to the position of the frame column, and the steel column accurately transfers the load to the frame column structure, avoiding weak stress positions, with strong bearing capacity and high safety; the primary and secondary beams are connected by a connecting device, which is convenient for construction and can be recycled; the cross-section of the lower end of the steel column is enlarged, with good stability, and is fixed with chemical anchor bolts, which is easy to disassemble; the corrugated steel plate is fixed to the steel beam by bolts, and the presence of the bolts increases the coupling force of the concrete, making the structure more stable.

[0052] Example 2

[0053] Reference Figures 1 to 6 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment and proposes a steel support platform suitable for heavy loads.

[0054] The platform assembly 100 includes a frame column 101, a side beam 102, a side span main beam 103 and a secondary beam 104. One end of the side beam 102 and the side span main beam 103 is connected to the frame column 101, and the secondary beam 104 is arranged between the side beam 102 and the side span main beam 103.

[0055] During the platform construction process, the side beams 102 and the side span main beams 103 are first connected to the frame columns 101, and then the side beams 102 and the side span main beams 103 are connected through the secondary beams 104, which effectively improves the supporting capacity of the platform. Finally, the steel cage is laid on the platform and concrete is poured to achieve rapid construction of the platform.

[0056] During the platform construction process, the installation and construction of the secondary beams 104 is particularly important. There are a large number of secondary beams 104, which connect the side beams 102 and the side span main beams 103 to share the pressure of the platform.

[0057] When the secondary beams 104 are connected by welding, the cutting dimensions thereof require high precision. Large errors may easily increase the workload of the welding operation and the operation cycle, thereby affecting the efficiency of the platform construction.

[0058] For this purpose, we use the installation module 200 and the linkage installation module 300 to install the secondary beam 104, so that it can be quickly connected and fixed with the side beam 102 and the side span main beam 103.

[0059] The installation module 200 includes a support installation component 201, a connection installation component 202 and a positioning component 203. Two groups of installation modules 200 are respectively arranged on the outside of the side beam 102 and the side span main beam 103.

[0060] During the installation process, the support installation component 201 is connected to the side beam 102 and the side span main beam 103, the installation component 202 is connected through the positioning component 203, and the support installation component 201 is positioned through the installation component 202 to increase the support stability of the support installation component 201.

[0061] The linkage installation module 300 includes a linkage component 301 and an adjustment locking component 302 . The linkage component 301 and the adjustment locking component 302 are movably connected, and the fixed installation of the secondary beam 104 is completed by adjusting the locking component 302 .

[0062] Example 3

[0063] Reference Figures 1 to 6 , which is the third embodiment of the present invention, and is based on the above two embodiments.

[0064] The support and installation assembly 201 includes a sleeve rod 201a, a screw rod 201b and a drive nut 201c. The drive nut 201c is arranged on the outer wall of the sleeve rod 201a. One end of the screw rod 201b passes through the inner cavity of the sleeve rod 201a. The outer wall of the screw rod 201b is threadedly connected to the inner wall of the sleeve rod 201a. One end of the screw rod 201b is connected to the support plate 201d, and the outer wall of the sleeve rod 201a is connected to the driving gear 201e.

[0065] When installing the secondary beam 104 , the user first passes one end of the connecting square tube 203 c through the inner cavity of the secondary beam 104 , and then places the support installation assembly 201 on the outer side of the side beam 102 or the side span main beam 103 .

[0066] The user rotates the sleeve rod 201a through the driving nut 201c and holds the support plate 201d to prevent it from rotating. The rotation of the sleeve rod 201a causes the screw rod 201b to move outward, and the movement of the screw rod 201b drives the support plate 201d to move. The movement of the support plate 201d causes it to contact the outer wall of the side beam 102 or the side span main beam 103, thereby achieving fixed locking.

[0067] The connecting and installing assembly 202 includes an adjusting rod 202a, a locking nut 202b and an extrusion ring 202c. The locking nut 202b is arranged on the outer wall of the adjusting rod 202a. One end of the extrusion ring 202c is connected to the locking nut 202b. One end of the adjusting rod 202a is connected to the raised ring 202e. A through groove 202d is opened on the surface of the raised ring 202e.

[0068] The inner wall of the adjustment rod 202a is connected to the spring 202g, one end of the spring 202g is connected to the linkage rod 202f, and one end of the linkage rod 202f passes through the adjustment rod 202a and is connected to the support plate 201d.

[0069] As the support plate 201d moves, the linkage rod 202f is driven to move in the inner cavity of the adjustment rod 202a. The movement of the linkage rod 202f stretches the spring 202g to cause it to deform. The deformation of the spring 202g facilitates the subsequent resetting of the equipment.

[0070] After the support plate 201d is limited and stuck, the user rotates the locking nut 202b, and the rotation of the locking nut 202b causes it to rotate and move on the outer wall of the adjustment rod 202a, thereby driving the extrusion ring 202c to rotate and move. Through the rotation of the extrusion ring 202c, it contacts the raised ring 202e, and the raised end of the raised ring 202e is higher than the end face of the extrusion ring 202c. The movement of the extrusion ring 202c squeezes the raised ring 202e, causing it to move toward the direction close to the outer wall of the linkage rod 202f, thereby achieving the extrusion limitation of the linkage rod 202f.

[0071] After the linkage rod 202f is squeezed and limited, it is locked with the adjustment rod 202a. The linkage rod 202f and the adjustment rod 202a support the support plate 201d, sharing some of the pressure on the support installation assembly 201. This prevents the support installation assembly 201 from being damaged by excessive pressure from vehicles after the platform is erected.

[0072] The positioning assembly 203 includes a connecting block 203a, a mounting block 203b and a connecting square tube 203c. The two ends of the connecting block 203a are respectively connected to the two adjusting rods 202a. The mounting block 203b is arranged on the outer wall of the connecting block 203a. One end of the connecting square tube 203c is connected to the mounting block 203b, and one end of the connecting square tube 203c passes through the inner cavity of the secondary beam 104.

[0073] The connecting block 203a connects the two sets of connecting and installing components 202 to ensure the stability of the connecting and installing components 202 during use and the supporting effect of the equipment. It is connected to the secondary beam 104 through the connecting square tube 203c, thereby realizing the connection and fixation of the secondary beam 104 and the side beam 102 or the side span main beam 103.

[0074] The linkage assembly 301 includes a tensioning screw 301a, a driven gear 301b and a traction screw block 301c. Both ends of the tensioning screw 301a are movably connected to the inner wall of the connecting square tube 203c. The driven gear 301b and the traction screw block 301c are both arranged on the outer wall of the tensioning screw 301a. The driven gear 301b is rotationally connected to the driving gear 201e, and the traction screw block 301c is threadedly connected to the tensioning screw 301a.

[0075] When the sleeve rod 201a is rotated and adjusted for installation, it drives the driving gear 201e to rotate, and the rotation of the driving gear 201e drives the driven gear 301b to rotate, and the rotation of the driven gear 301b drives the pulling screw 301a to rotate, and the rotation of the pulling screw 301a drives the two groups of traction screw blocks 301c on its outer wall to move away from each other.

[0076] The adjusting and locking assembly 302 includes a traction rod 302a, an adjusting bolt 302b and a positioning rod 302c. One end of the traction rod 302a is connected to the traction screw block 301c, the adjusting bolt 302b is threadedly connected to the outer wall of the traction rod 302a, one end of the positioning rod 302c passes through the inner cavity of the traction rod 302a, one end of the positioning rod 302c passes through the connecting square tube 203c and is connected to the extrusion plate 302d, and a friction strip 302e is set on the outer wall of the extrusion plate 302d.

[0077] The movement of the traction screw 301c drives the traction rod 302a to move, which in turn drives the positioning rod 302c to move, which in turn drives the extrusion plate 302d to move. The movement of the extrusion plate 302d causes the friction strips 302e on its surface to contact the inner wall of the secondary beam 104, thereby clamping it. This completes the installation and fixation of the secondary beam 104.

[0078] An adjusting bolt 302b is provided on the surface of the traction rod 302a, and the positioning rod 302c is installed and fixed by the adjusting bolt 302b. The user can remove the adjusting bolt 302b and adjust the length of the positioning rod 302c in the inner cavity of the traction rod 302a, thereby adjusting the initial position of the extrusion plate 302d.

[0079] Since the movement of the extrusion plate 302d is synchronized with the movement of the support plate 201d, when the support plate 201d is clamped, the user cannot continue to rotate the sleeve rod 201a, that is, in this state, the extrusion plate 302d cannot move either. The user can adjust the initial position of the extrusion plate 302d by adjusting the bolt 302b, so that the fixed clamping state of the extrusion plate 302d and the support plate 201d is completed synchronously.

[0080] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0082] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A steel support platform suitable for heavy loads, characterized by: include, A platform assembly (100), the platform assembly (100) comprising a frame column (101), a side beam (102), a side span main beam (103) and a secondary beam (104), one end of the side beam (102) and the side span main beam (103) being connected to the frame column (101), and the secondary beam (104) being arranged between the side beam (102) and the side span main beam (103); An installation module (200), the installation module (200) comprising a support installation component (201), a connection installation component (202) and a positioning component (203), two groups of the installation modules (200) being respectively arranged on the outside of the side beam (102) and the side span main beam (103), connected to the side beam (102) and the side span main beam (103) via the support installation component (201), connected to the connection installation component (202) via the positioning component (203), and positioning the support installation component (201) via the connection installation component (202), thereby increasing the support stability of the support installation component (201); A linkage installation module (300), the linkage installation module (300) comprising a linkage assembly (301) and an adjustment locking assembly (302), the linkage assembly (301) and the adjustment locking assembly (302) being movably connected, and the fixed installation of the secondary beam (104) is completed by adjusting the locking assembly (302); The support installation assembly (201) comprises a sleeve rod (201a), a screw rod (201b) and a drive nut (201c); the drive nut (201c) is arranged on the outer wall of the sleeve rod (201a); one end of the screw rod (201b) penetrates into the inner cavity of the sleeve rod (201a); the outer wall of the screw rod (201b) is threadedly connected to the inner wall of the sleeve rod (201a); one end of the screw rod (201b) is connected to a support plate (201d); and the outer wall of the sleeve rod (201a) is connected to a driving gear (201e); The connection and installation assembly (202) comprises an adjusting rod (202a), a locking nut (202b) and an extrusion ring (202c); the locking nut (202b) is arranged on the outer wall of the adjusting rod (202a); one end of the extrusion ring (202c) is connected to the locking nut (202b); one end of the adjusting rod (202a) is connected to a raised ring (202e); and a through groove (202d) is provided on the surface of the raised ring (202e); The positioning assembly (203) comprises a connecting block (203a), a mounting block (203b) and a connecting square tube (203c); both ends of the connecting block (203a) are respectively connected to two adjusting rods (202a); the mounting block (203b) is arranged on the outer wall of the connecting block (203a); one end of the connecting square tube (203c) is connected to the mounting block (203b); and one end of the connecting square tube (203c) passes through the inner cavity of the secondary beam (104).

2. The steel support platform suitable for heavy loads according to claim 1, characterized in that: The inner wall of the adjustment rod (202a) is connected to a spring (202g), one end of the spring (202g) is connected to a linkage rod (202f), and one end of the linkage rod (202f) passes through the adjustment rod (202a) and is connected to the support plate (201d).

3. The steel support platform suitable for heavy loads according to claim 1 or 2, characterized in that: The linkage assembly (301) comprises a tensioning screw (301a), a driven gear (301b) and a traction screw block (301c); both ends of the tensioning screw (301a) are movably connected to the inner wall of the connecting square tube (203c); the driven gear (301b) and the traction screw block (301c) are both arranged on the outer wall of the tensioning screw (301a); the driven gear (301b) is rotationally connected to the driving gear (201e); and the traction screw block (301c) is threadedly connected to the tensioning screw (301a).

4. The steel support platform suitable for heavy loads as claimed in claim 3, characterized in that: The adjusting and locking assembly (302) comprises a traction rod (302a), an adjusting bolt (302b) and a positioning rod (302c); one end of the traction rod (302a) is connected to the traction screw block (301c); the adjusting bolt (302b) is threadedly connected to the outer wall of the traction rod (302a); one end of the positioning rod (302c) passes through the inner cavity of the traction rod (302a); one end of the positioning rod (302c) passes through the connecting square tube (203c) and is connected to the extrusion plate (302d); and a friction strip (302e) is provided on the outer wall of the extrusion plate (302d).

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