An expandable folding steel frame keel system

Abstract

The application discloses an extensible folding steel frame keel system, which comprises a plurality of folding layer units, each folding layer unit comprises a fixed frame, a first movable side frame is hinged on a column of the fixed frame through a hinge, a second movable side frame is hinged on another column on the same side of the fixed frame through a hinge, a movable bottom frame is hinged on a bottom edge on the same side of the fixed frame through a hinge, and a movable front frame is hinged on a distal edge of the movable bottom frame through a hinge. The application can fold and store the ceiling steel frame, the folding layer units and the foundation unit respectively, or combine them into a whole, so that the steel frame keel can be folded and stored without removing the keel bars one by one, and the use convenience of the steel frame keel is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structures, in particular to an expandable and foldable steel frame keel system. BACKGROUND

[0002] The keel frame is a kind of building material used to support the shape and fix the structure, which is used as the skeleton and base material of the building decoration structure. The keel frame is composed of a plurality of rod members to form longitudinal beams and transverse beams, which are connected to each other to form a whole keel frame. Currently, the connection and installation of the longitudinal and transverse beams of the keel frame usually adopt two conventional methods of bolt connection and welding. During the construction of the keel frame by bolt connection, each rod member needs to be bolted and fixed one by one. During the disassembly of the keel frame, each node bolt also needs to be disassembled one by one, and the individual rod members are then transported separately. Therefore, the installation and disassembly process is very cumbersome and consumes a lot of manpower and resources. Although the keel frame constructed by welding is stable, it cannot be disassembled and reused. In addition, the existing keel frame structure cannot adjust the support strength of the keel frame according to actual needs. When each layer of the keel frame has the same support structure, the stability of the keel frame will be greatly weakened to a certain height. SUMMARY

[0003] The purpose of the present application is to provide an expandable and foldable steel frame keel system, which realizes the modular connection and stability assembly between the steel frame layer units, and can fold and store the ceiling steel frame, each foldable layer unit and the foundation unit, or expand and combine them into a whole, so as to achieve the effect of folding and storing without disassembling the keel rod members one by one, thereby greatly improving the use convenience of the steel frame keel.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows:

[0005] An expandable and foldable steel frame keel system comprises a plurality of foldable layer units, each of which comprises a fixed frame, a first movable side frame hingedly connected to a vertical column of the fixed frame, a second movable side frame hingedly connected to another vertical column on the same side of the fixed frame, a movable bottom frame hingedly connected to a bottom edge on the same side of the fixed frame, and a movable front frame hingedly connected to a distal edge of the movable bottom frame.

[0006] A second connecting piece is arranged on the non-hinge right angle upper part of the fixed frame, and a third connecting piece is arranged on the non-hinge right angle lower part of the fixed frame. A threaded column is arranged above the corner of the second connecting piece, and a square boss is arranged below the corner. A square boss is arranged above the corner of the third connecting piece, and a through hole matched with the position of the threaded column of the second connecting piece is arranged below the corner.

[0007] The boss shape is matched with and embedded in the inner wall of the square steel, which facilitates welding and enhances the welding strength.

[0008] The non-hinge right angle part of the first movable side frame and the second movable side frame is provided with a fourth connecting piece, and square bosses are arranged on the two end faces of the fourth connecting piece.

[0009] The non-hinge right angle part of the movable bottom frame is provided with a first connecting piece, and a through hole matched with the position of the threaded column of the second connecting piece is arranged below the corner part of the first connecting piece.

[0010] When the threaded column is inserted into the through hole, a nut is screwed into the end part of the threaded column for anchoring, so that the fixed connection of the two is completed.

[0011] The non-hinge right angle part of the movable front frame is provided with a fifth connecting piece, a through hole matched with the through hole of the fourth connecting piece is arranged on the fifth connecting piece, a threaded column is arranged on the upper end face of the corner part of the fifth connecting piece, and the threaded column is matched with the through holes of the first connecting piece and the third connecting piece; the hinge right angle part of the movable front frame is provided with a sixth connecting piece, and a through hole matched with the through hole of the fourth connecting piece is arranged on the sixth connecting piece.

[0012] It should be noted that when the fifth connecting piece and the fourth connecting piece are connected by a bolt, the second gasket is inserted into the contact surface of the two, which is used to compensate for the gap in the design of the movable part, so that the connecting piece is more compact after the bolt connection.

[0013] When the sixth connecting piece and the fourth connecting piece are connected by a bolt after the movable front frame is unfolded, the first gasket is inserted into the contact surface of the two, which is used to compensate for the gap between the contact surfaces caused by the movable part, so that the connecting piece is more compact after the bolt connection.

[0014] The folding layer unit is connected with a ceiling steel frame unit above, and the ceiling steel frame unit comprises first, second and third ceilings which are combined side by side by hinges.

[0015] The non-hinge right angle part of the first ceiling and the third ceiling is provided with a first connecting piece, and a through hole matched with the position of the threaded column of the second connecting piece is arranged below the corner part of the first connecting piece.

[0016] The foundation unit comprises a plurality of superimposed foot supports, the bottom surface of the foot support is provided with a groove, the top surface is provided with a boss matched in shape, the foot support is further provided with a T-shaped counterbore, a bottom plate is arranged on the uppermost foot support unit, the through hole of the bottom plate corresponds to the position of the through hole of the foot support, a T-shaped bolt passes through the through hole from bottom to top, and the end part is anchored by a nut; a threaded column is arranged on the upper end face of the bottom plate, and the threaded column is matched with the through hole of the third connecting piece.

[0017] Inside the folding layer unit, a first supporting square steel can be arranged between the second connecting piece and the third connecting piece corresponding to the upper and lower positions, both ends of the first supporting square steel are welded with a hole plate, the through hole of the hole plate is matched with the through holes of the second connecting piece and the third connecting piece, and the first supporting square steel is fastened by a bolt and a nut.

[0018] The second support square steel is welded with hole plates at both ends, the through holes of the hole plates match the through holes of the second connecting piece and the third connecting piece, and fastening is performed through bolts and nuts.

[0019] The method for installing the steel frame keel system comprises the following steps:

[0020] A. Dig a pit on the ground of the soil body which is suitable for the foot base unit, pass the T-shaped bolt into the through hole of the bottom foot base unit from bottom to top, and bury the bottom foot base unit in the soil body; align the through hole of the bolt with the foot base unit, sequentially place the foot base units which are required to be buried, then backfill the soil body, and the uppermost convex post is exposed on the ground; the groove of the uppermost foot base unit is aligned with the convex post, and then the uppermost foot base unit is slowly placed down; place the bottom plate above the foot base unit, and pass the through hole into the bolt; put the nut on the head of the bolt, and tighten the nut to anchor, thereby completing the installation of the foundation unit;

[0021] B. Pass the through hole of the fixed frame of the folded folding layer unit into the threaded column of the foundation unit on the ground, and tighten the first nut; unfold the movable bottom frame, pass the threaded column of the foundation unit through the through hole of the first connecting piece, and tighten the first nut; then unfold the movable front frame, insert the first gasket plate into the gap between the movable front frame and the movable bottom frame, pass the first gasket plate through the external hexagonal bolt, and tighten the second nut; then unfold the first second movable side frame, insert the second gasket plate into the gap between the first second movable side frame and the movable bottom frame and the movable front frame, pass the second gasket plate through the external hexagonal bolt, and tighten the second nut;

[0022] C. According to the height of the steel frame layer unit, the total height and weight of the keel system and other factors, install the support square steel on the folding layer unit, align the center hole on the hole plate at both ends of the support square steel with the round hole of the connecting piece, and connect the folding layer unit through the external hexagonal bolt;

[0023] D. Pass the four through holes at the bottom of the fixed frame of the folded folding layer unit into the threaded column of the folding layer unit which has been installed below, and tighten the first nut; sequentially unfold the movable bottom frame, the movable front frame, the first second movable side frame and fix them according to the sequence in steps B and C, and install the support square steel;

[0024] E. Align the round hole at the bottom of the third ceiling in the folded ceiling steel frame unit with the threaded column of the steel frame main body of the folding layer unit which has been installed, and tighten the first nut; unfold the ceiling unit, pass the threaded column at the top of the movable front frame of the folding layer unit through the round hole at the bottom of the third ceiling, connect the movable front frame and the first ceiling through the external hexagonal bolt, and tighten the second nut.

[0025] Advantages of the present application:

[0026] 1、The present application can fold and store the steel frame ceiling unit, each folding layer unit in the steel frame keel system, or combine them into a whole by unfolding, realize the effect of folding and storing without removing the keel bar one by one, greatly improve the use convenience of the steel frame keel; after folding and storing each unit, the unit volume is only one third of the unfolded state, that is, the storage effect of reducing two thirds of the volume is realized, which is convenient for transportation and carrying of the unit.

[0027] 2、In each folding layer unit of the present application, according to the height of the steel frame layer unit, the total height and weight of the keel system and other factors, the supporting square steel is installed on the folding layer unit, so that the folding layer unit at the bottom layer can choose to add supporting square steel to obtain higher structural rigidity and strength, and further improve the stability of the steel frame keel system. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The installation embodiment schematic diagram of the expandable folding steel frame keel system;

[0029] Figure 2 The structure schematic diagram of the I area of the expandable folding steel frame keel system;

[0030] Figure 3 The structure schematic diagram of the II area of the expandable folding steel frame keel system;

[0031] Figure 4 The structure schematic diagram of the III area of the expandable folding steel frame keel system;

[0032] Figure 5 The structure schematic diagram of the ceiling steel frame unit;

[0033] Figure 6 The folding schematic diagram of the ceiling steel frame unit;

[0034] Figure 7 The structure schematic diagram of the folding layer unit;

[0035] Figure 8 The folding schematic diagram of the folding layer unit;

[0036] Figure 9 The structure schematic diagram of the foundation unit;

[0037] Figure 10 The section view of the foundation unit;

[0038] Figure 11 The bottom view of the foot stand;

[0039] Figure 12 The section view of the foot stand;

[0040] Figure 13 The structure schematic diagram of the first connecting piece;

[0041] Figure 14 is a schematic view of a second connecting piece structure;

[0042] Figure 15 is a schematic view of a third connecting piece structure;

[0043] Figure 16 is a schematic view of a fourth connecting piece structure;

[0044] Figure 17 is a schematic view of a fifth connecting piece structure;

[0045] Figure 18 is a schematic view of a sixth connecting piece structure;

[0046] Figure 19 is a schematic view of a first and second support steel frame cross-sectional structure;

[0047] The serial number and component name in the figure are: 1000 - ceiling steel frame unit, 1100 - first ceiling, 1200 - second ceiling; 1300 - third ceiling; 1110 - first connecting piece;

[0048] 2000 - folding layer unit, 2100 - fixed frame, 2200 - first movable side frame, 2300 - second movable side frame, 2400 - movable front frame; 2500 - movable bottom frame; 4000 - first support square steel, 5000 - first backing plate, 6000 - second backing plate, 7000 - second support square steel, 0100 - hinge, 0200 - square steel, 0300 - first nut, 0400 - external hexagonal bolt, 0500 - second nut; 2110 - second connecting piece; 2120 - third connecting piece; 2210 - fourth connecting piece; 2220 - internally threaded column; 2410 - fifth connecting piece; 2420 - sixth connecting piece.

[0049] 3000 - foundation unit, 3100 - bottom plate; 3200 - foot base; 3300 - T-shaped bolt; 4100 - hole plate. DETAILED DESCRIPTION

[0050] Example 1

[0051] The steel frame keel system is composed of a bottom foundation unit, three folding layer units above, and a ceiling steel frame unit at the top. The bottommost folding layer unit is installed with four first support square steels and eight second support square steels, two first support square steels and four second support square steels are installed at the fixed frame of the middle layer, and no support square steel is set at the topmost layer.

[0052] The extensible folding steel frame batten system comprises a plurality of folding layer units 2000, each folding layer unit 2000 comprising a fixed frame 2100, a first movable side frame 2200 hinged to a column of the fixed frame 2100 through a hinge 0100, a second movable side frame 2300 hinged to another column of the fixed frame 2100 through the hinge 0100, a movable bottom frame 2500 hinged to a bottom edge of the fixed frame 2100 through the hinge 0100, and a movable front frame 2400 hinged to a distal edge of the movable bottom frame 2500 through the hinge 0100.

[0053] The non-hinge 0100 upper corner of the fixed frame 2100 is provided with a second connecting piece 2110, and the non-hinge 0100 lower corner of the fixed frame 2100 is provided with a third connecting piece 2120; the upper corner of the second connecting piece 2110 is provided with a threaded column, and the lower corner is provided with a square boss; the upper corner of the third connecting piece 2120 is provided with a square boss, and the lower corner is provided with a through hole matching the threaded column position of the second connecting piece 2110.

[0054] The non-hinge 0100 corner of the first movable side frame 2200 and the second movable side frame 2300 is provided with a fourth connecting piece 2210, and the two end faces of the fourth connecting piece 2210 are provided with square bosses.

[0055] The non-hinge 0100 corner of the movable bottom frame 2500 is provided with a first connecting piece 1110, and the lower corner of the first connecting piece 1110 is provided with a through hole matching the threaded column position of the second connecting piece 2110.

[0056] The non-hinge 0100 corner of the movable front frame 2400 is provided with a fifth connecting piece 2410, and the fifth connecting piece 2410 is provided with a through hole matching the through hole of the fourth connecting piece 2210; the upper end face of the corner of the fifth connecting piece 2410 is provided with a threaded column matching the through holes of the first connecting piece 1110 and the third connecting piece 2120; the hinge 0100 corner of the movable front frame 2400 is provided with a sixth connecting piece 2420, and the sixth connecting piece 2420 is provided with a through hole matching the through hole of the fourth connecting piece 2210.

[0057] The folding layer unit 2000 is connected to a ceiling steel frame unit 1000 above, and the ceiling steel frame unit 1000 comprises a first ceiling 1100, a second ceiling 1200, and a third ceiling 1300 connected side by side through the hinge 0100.

[0058] The non-hinge 0100 corner of the first ceiling 1100 and the third ceiling 1300 is provided with a first connecting piece 1110, and the lower corner of the first connecting piece 1110 is provided with a through hole matching the threaded column position of the second connecting piece 2110.

[0059] The foundation unit 3000 comprises several superimposed foot bases 3200, the bottom surface of the foot base 3200 is provided with a groove, the top surface is provided with a matching boss, the foot base 3200 is further provided with a T-shaped counterbore, the bottom plate 3100 is placed on the uppermost foot base 3200 unit, the through hole thereof corresponds to the position of the through hole of the foot base 3200, the T-shaped bolt 3300 is passed through the through hole from bottom to top, and is anchored by a nut at the end; the upper end surface of the bottom plate 3100 is provided with a threaded column, which matches the through hole of the third connecting piece 2120.

[0060] Inside the folding layer unit 2000, the first support square steel 4000 can be arranged between the corresponding second connecting piece 2110 and third connecting piece 2120, both ends of the first support square steel 4000 are welded with a hole plate, the through hole of the hole plate matches the through hole of the second connecting piece 2110 and the third connecting piece 2120, and is fastened by a bolt and a nut.

[0061] Inside the folding layer unit 2000, the second support square steel 7000 can be arranged between the corresponding second connecting piece 2110 and third connecting piece 2120, both ends of the second support square steel 7000 are welded with a hole plate, the through hole of the hole plate matches the through hole of the second connecting piece 2110 and the third connecting piece 2120, and is fastened by a bolt and a nut.

Claims

1. An expandable and foldable steel framing joist system, characterized by: It comprises several folding layer units (2000), each folding layer unit (2000) comprises a fixed frame (2100), a first movable side frame (2200) is hinged on a vertical column of the fixed frame (2100) through a hinge (0100), a second movable side frame (2300) is hinged on another vertical column of the fixed frame (2100) through a hinge (0100), a movable bottom frame (2500) is hinged on a bottom edge of the fixed frame (2100) through a hinge (0100), and a movable front frame (2400) is hinged on a distal edge of the movable bottom frame (2500) through a hinge (0100). A second connecting piece (2110) is arranged on the upper part of the non-hinge (0100) right angle of the fixed frame (2100), a third connecting piece (2120) is arranged on the lower part of the non-hinge (0100) right angle of the fixed frame (2100), a threaded column is arranged above the corner of the second connecting piece (2110), and a square boss is arranged below the second connecting piece (2110); a square boss is arranged above the corner of the third connecting piece (2120), and a through hole matched with the threaded column of the second connecting piece (2110) is arranged below the third connecting piece (2120). The steel frame keel system is composed of a bottom foundation unit, an upper folding layer unit and a top ceiling steel frame unit.

2. The expandable folding steel framing stud system of claim 1, wherein: A fourth connecting piece (2210) is arranged on the non-hinge (0100) right angle of the first movable side frame (2200) and the second movable side frame (2300), and square bosses are arranged on both end faces of the fourth connecting piece (2210).

3. The expandable, folded steel framing stud system of claim 1, wherein: A first connecting piece (1110) is arranged on the non-hinge (0100) right angle of the movable bottom frame (2500), and a through hole matched with the threaded column of the second connecting piece (2110) is arranged below the corner of the first connecting piece (1110).

4. The expandable, folded steel framing stud system of claim 1, wherein: A fifth connecting piece (2410) is arranged on the non-hinge (0100) right angle of the movable front frame (2400), a through hole matched with the through hole of the fourth connecting piece (2210) is arranged on the fifth connecting piece (2410), a threaded column is arranged on the upper end face of the corner of the fifth connecting piece (2410), and the threaded column is matched with the through holes of the first connecting piece (1110) and the third connecting piece (2120); a sixth connecting piece (2420) is arranged on the hinge (0100) right angle of the movable front frame (2400), and a through hole matched with the through hole of the fourth connecting piece (2210) is arranged on the sixth connecting piece (2420).

5. The expandable, folded steel framing stud system of claim 1, wherein: The folding layer unit (2000) is connected with a ceiling steel frame unit (1000) above, and the ceiling steel frame unit (1000) comprises first, second and third ceilings (1100, 1200 and 1300) which are connected and combined side by side through hinges (0100).

6. The expandable, folded steel framing stud system of claim 5, wherein: First connecting pieces (1110) are arranged on the non-hinge (0100) right angles of the first and third ceilings (1100 and 1300), and through holes matched with the threaded columns of the second connecting pieces (2110) are arranged below the corners of the first connecting pieces (1110).

7. The expandable, folded steel framing stud system of claim 1, wherein: The foundation unit (3000) comprises several superimposed foot bases (3200), the bottom surface of the foot base (3200) is provided with a groove, the top surface is provided with a matching convex platform, the foot base (3200) is further provided with a T-shaped counterbore, the bottom plate (3100) is placed on the uppermost foot base (3200) unit, the through hole thereof corresponds to the through hole position of the foot base (3200), the T-shaped bolt (3300) is passed through the through hole from bottom to top, and is anchored by a nut at the end; the upper end surface of the bottom plate (3100) is provided with a threaded column, and the threaded column matches the through hole of the third connecting piece (2120).

8. The expandable, folded steel framing stud system of claim 1, wherein: Inside the folding layer unit (2000), the first support square steel (4000) can be arranged between the corresponding second connecting piece (2110) and third connecting piece (2120) upward and downward, both ends of the first support square steel (4000) are welded with a hole plate, the through hole of the hole plate matches the through hole of the second connecting piece (2110) and the third connecting piece (2120), and is fastened by a bolt and a nut.

9. The expandable, folded steel framing stud system of claim 1, wherein: Inside the folding layer unit (2000), the second support square steel (7000) can be arranged between the corresponding second connecting piece (2110) and third connecting piece (2120) upward and downward, both ends of the second support square steel (7000) are welded with a hole plate, the through hole of the hole plate matches the through hole of the second connecting piece (2110) and the third connecting piece (2120), and is fastened by a bolt and a nut.

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