Self-supporting type support for high-rise building air pipe

Abstract

The utility model relates to the technical field of air duct installation, in particular to a self-supporting type support for a high-rise building air duct, which comprises a support main body, the support main body comprises a first vertical channel steel and a second vertical channel steel with openings opposite to each other, and a plurality of groups of supporting arms distributed up and down are rotatably connected between the first vertical channel steel and the second vertical channel steel. A T-shaped fixing piece is fixed to the outer surface of a web of the first vertical channel steel, the first vertical channel steel is connected with the air pipe through the fixing piece, an anti-skid plate is arranged on the outer surface of a web of the second vertical channel steel, and the outer surface of the anti-skid plate abuts against the wall. The first vertical channel steel and the supporting arm are connected through a rotating shaft, and the second vertical channel steel and the supporting arm are connected through a rotating shaft. The problems that the aloft work amount is increased, time and labor are consumed and the safety risk is high due to the fact that an existing high-rise building air duct is installed through a forward installation method are solved, and the problem that a vertical support cannot be installed or is difficult to install in a fully-closed or semi-closed air duct is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct installation, in particular to a self-supporting bracket for air ducts of high-rise buildings. Background Art

[0002] In high-rise buildings, the installation of air ducts is particularly complex, involving crossing floors and closely fitting with walls and beams. During the installation process, the normal installation method is usually adopted, that is, starting from the bottom of the building or a certain reference horizontal plane, and installing it section by section upward to the designed elevation. This method follows a bottom-up installation sequence, requiring construction workers to operate on a scaffolding or lifting platform that has been built, and use screws and lifting equipment to fix sections of prefabricated air ducts to the pre-installed fixing points or brackets on each floor, and connect and fix them until the installation of the entire air duct system is completed.

[0003] However, practice has shown that the existing high-rise building air ducts have the following problems during installation: First, the upright installation method requires construction workers to perform delicate operations in a high-altitude working environment. As the installation height increases, the amount of high-altitude work increases, which is not only time-consuming and labor-intensive, but also poses safety risks and requires high safety measures; second, for the fully enclosed or semi-enclosed air duct design in high-rise buildings, there are situations where the vertical bracket cannot be installed or the installation is difficult, making it difficult to accurately position and securely install the bracket in a limited space.

[0004] Therefore, it is necessary to invent a self-supporting bracket for high-rise building air duct to solve the above problems. Utility Model Content

[0005] In order to solve the problems of increased high-altitude work volume, time-consuming and labor-intensive, and high safety risks caused by the use of a vertical installation method when installing existing high-rise building air ducts, and the problem that vertical brackets existing in fully enclosed or semi-enclosed air ducts cannot be installed or are difficult to install, the utility model provides a self-supporting bracket for high-rise building air ducts.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A self-supporting bracket for an air duct in a high-rise building is arranged between a wall and the air duct, and comprises a bracket body, wherein the bracket body comprises a first vertical channel steel and a second vertical channel steel which are arranged with openings opposite to each other, a plurality of groups of support arms which are rotatably connected between the first vertical channel steel and the second vertical channel steel and which are distributed up and down, a T-shaped fixing piece is fixed to the outer surface of the web of the first vertical channel steel, the first vertical channel steel is connected to the air duct via the fixing piece, an anti-skid plate is arranged on the outer surface of the web of the second vertical channel steel, and the outer surface of the anti-skid plate contacts the wall.

[0008] Furthermore, the first vertical channel steel and the support arm, as well as the second vertical channel steel and the support arm are connected via a rotating shaft.

[0009] Furthermore, a first mounting hole is provided on the fixing member, a second mounting hole matching the first mounting hole is provided on the integral flange of the air duct, and the first vertical channel steel is connected to the air duct by bolts simultaneously passing through the first mounting hole and the second mounting hole.

[0010] Furthermore, an angle limiting plate is fixed to the top end of the first vertical channel steel.

[0011] Furthermore, the anti-slip plate is a steel plate, and the outer surface of the anti-slip plate is provided with steel bar barbs.

[0012] Furthermore, a locking fixing shaft is arranged on the outer surface of the wing plate of the second vertical channel steel, a fixing hole which passes through from top to bottom is opened on the locking fixing shaft, and a steel wire is passed through and fixed in the fixing hole.

[0013] Furthermore, the length of the support arm is slightly greater than the vertical distance from the outer surface of the air duct to the wall.

[0014] The utility model has a reasonable and reliable structural design, which reduces the need for working at heights. Most of the installation work can be completed in a relatively safe low place, which greatly reduces the safety risks of working at heights and speeds up the construction progress. It can achieve quick installation and fixation. The self-supporting bracket can be opened by pulling the steel wire. No complicated on-site assembly is required, which simplifies the duct installation procedure, saves labor and time, and significantly improves work efficiency. Especially in fully enclosed or semi-enclosed air ducts, the self-supporting bracket can be flexibly adjusted according to the actual dimensions of the air duct and the air duct. Its adjustability and adaptive design ensure that it can be stably installed in a space-constrained environment, solving the problem that the existing bracket cannot be installed or is difficult to install in a fully enclosed or semi-enclosed air duct. The angle limit plate and the anti-slip plate ensure that the self-supporting bracket becomes tighter and tighter under the deadweight of the air duct, thereby enhancing the stability of the air duct, ensuring the long-term stability and safety of the self-supporting bracket, and reducing the need for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural plan view of the utility model.

[0017] Figure 3 It is a bottom view of the structure of the utility model.

[0018] Figure 4 It is a layout plan of the utility model in the air duct.

[0019] Figure 5 The utility model is arranged in the air duct elevation Figure 1 .

[0020] Figure 6 The utility model is arranged in the air duct elevation Figure 2 .

[0021] In the figure: 1. wall; 2. air duct; 3. first vertical channel steel; 4. second vertical channel steel; 5. support arm; 6. fixing piece; 7. anti-skid plate; 8. rotating shaft; 9. first mounting hole; 10. angle limit plate; 11. interlocking fixing shaft; 12. fixing hole; 13. steel wire. DETAILED DESCRIPTION

[0022] A self-supporting bracket for high-rise building air ducts, as shown in the attached Figure 1 ~Attached Figure 6 As shown, it is arranged between the wall 1 and the air duct 2, and includes a bracket body, wherein the bracket body includes a first vertical channel steel 3 and a second vertical channel steel 4 which are opened and arranged opposite to each other, a plurality of groups of support arms 5 which are rotatably connected between the first vertical channel steel 3 and the second vertical channel steel 4 and are distributed up and down, a T-shaped fixing part 6 is fixed to the outer surface of the web of the first vertical channel steel 3, the first vertical channel steel 3 is connected to the air duct 2 through the fixing part 6, an anti-skid plate 7 is arranged on the outer surface of the web of the second vertical channel steel 4, and the outer surface of the anti-skid plate 7 is in contact with the wall 1.

[0023] As attached Figure 1 ~Attached Figure 4 As shown, the first vertical channel steel 3 and the support arm 5 , as well as the second vertical channel steel 4 and the support arm 5 are connected via a rotating shaft 8 .

[0024] In the utility model, the structural design of the first vertical channel steel 3 and the second vertical channel steel 4 constitutes the skeleton of the bracket body, providing supporting strength for the installation of the air duct 2, wherein the first vertical channel steel 3 is directly connected to the air duct 2 through the fixing member 6, and the anti-slip plate 7 of the second vertical channel steel 4 is close to the wall 1, jointly ensuring the stability of the self-supporting bracket; the structural design of the rotating shaft 8 enables the support arm 5 to be rotatably connected between the first vertical channel steel 3 and the second vertical channel steel 4 to adapt to the different distances between the air duct 2 and the wall 1, thereby realizing the self-supporting adjustment of the bracket body and improving the installation flexibility and convenience of the self-supporting bracket.

[0025] As attached Figure 1 , Attachment Figure 3 As shown, the fixing member 6 is provided with a first mounting hole 9, the integral flange of the air duct 2 is provided with a second mounting hole matching the first mounting hole 9, and the first vertical channel steel 3 is connected to the air duct 2 by bolts simultaneously passing through the first mounting hole 9 and the second mounting hole.

[0026] The combined structural design of the first mounting hole 9 , the second mounting hole and the bolts realizes a rigid connection between the air duct 2 and the bracket body, thereby ensuring a stable suspension of the air duct 2 .

[0027] As attached Figure 1 ~Attached Figure 4 As shown, an angle limiting plate 10 is fixed to the top of the first vertical channel steel 3 .

[0028] The structural design of the angle limit plate 10 limits the expansion angle of the support arm 5, ensuring that the self-supporting bracket becomes tighter and tighter under the deadweight of the air duct 2, thereby enhancing the stability of the air duct 2, ensuring the long-term stability and safety of the self-supporting bracket, and reducing the need for subsequent maintenance.

[0029] As attached Figure 1 ~Attached Figure 4 As shown, the anti-skid plate 7 is a steel plate, and the outer surface of the anti-skid plate 7 is provided with steel barbs.

[0030] The structural design of the steel bar barbs can enhance the friction between the anti-slip plate 7 and the wall 1, and can effectively prevent sliding even when not directly fixed, thus meeting the installation requirements of fully enclosed or semi-enclosed air ducts.

[0031] As attached Figure 1 ~Attached Figure 6 As shown, the outer surface of the wing plate of the second vertical channel steel 4 is provided with a locking fixing shaft 11 , and the locking fixing shaft 11 is provided with a fixing hole 12 which passes through from top to bottom, and a steel wire 13 is passed through and fixed in the fixing hole 12 .

[0032] The combined structural design of the interlocking fixing shaft 11, the fixing hole 12 and the steel wire 13 realizes the final fixation and adjustment of the bracket, so that the self-supporting bracket can be opened only by pulling the steel wire 13, thereby achieving the purpose of rapid installation, positioning and locking in a fully enclosed or semi-enclosed air duct, without the need for complicated on-site assembly, simplifying the cumbersome adjustment steps in the existing bracket installation, and allowing the installation to be carried out without a large amount of high-altitude operations, saving labor and time, and significantly improving work efficiency and safety.

[0033] As attached Figure 1 ~Attached Figure 6 As shown, the length of the support arm 5 is slightly greater than the vertical distance from the outer surface of the air duct 2 to the wall 1 .

[0034] The utility model is installed and used by adopting the following steps:

[0035] Step 1: Set up a winch on the roof, lower four steel wires 13 into the air duct to the basement floor, and lower multiple lifting steel wires;

[0036] Step 2: Place the first section of the air duct 2 at the central position of the air duct in the basement, firmly fix the top of the first section of the air duct 2 to the lifting wire, prepare the prefabricated and assembled multiple bracket bodies including the first vertical channel steel 3, the second vertical channel steel 4, the support arm 5, the fixing piece 6, the anti-slip plate 7, the angle limit plate 10 and the interlocking fixed shaft 11, and bolt a bracket body at the upper end of the outer surface of the four outer walls of the section of the air duct 2 through the fixing piece 6, so that the four bracket bodies correspond to the four walls 1 one by one, and each bracket body is perpendicular to the corresponding outer wall of the section of the air duct 2 and the corresponding wall 1 at the same time, and then a lowered steel wire 13 is passed through and knotted and fixed in the fixing hole 12 of the interlocking fixed shaft 11 of each bracket body;

[0037] Step 3: lift the first section of air duct 2 to a certain height through a winch and a lifting wire, so that the second section of air duct 2 can be installed on its flange below the first section of air duct 2. After installing the first section of air duct 2 and the second section of air duct 2, a bracket body is fixed by bolts 6 at the upper ends of the outer surfaces of the four outer walls of the second section of air duct 2, so that each bracket body of the second section of air duct 2 is perpendicular to the outer wall of the corresponding second section of air duct 2 and the corresponding wall 1 at the same time, and at the same time, the four bracket bodies of the second section of air duct 2 correspond to the positions of the four bracket bodies of the first section of air duct 2 one by one, and then the four steel wires 13 hanging from the first section of air duct 2 are correspondingly passed through the fixing holes 12 of the four bracket bodies of the second section of air duct 2 and knotted and fixed, ensuring that the length of the steel wire 13 between the two adjacent interlocking fixing shafts 11 on the same steel wire 13 after knotting and fixing is equal to the vertical distance between the first vertical channel steels 3 of the two adjacent bracket bodies corresponding to the steel wire 13;

[0038] Step 4: Repeat step 3 to install the third section of the air duct 2 and the fourth section of the air duct 2 in sequence, and so on until all sections of the air duct 2 are installed. At this time, the first section of the air duct 2 is hoisted to the designed height;

[0039] Step 5: Fix a bracket body at the connected flange at the lower end of the outer surface of the four outer walls of the tail section air duct 2 at the bottom of the air duct through the fixing piece 6 bolts, so that each bracket body at the bottom of the section air duct 2 is perpendicular to the corresponding outer wall of the section air duct 2 and the corresponding wall 1 at the same time, and at the same time, make the four bracket bodies at the bottom of the section air duct 2 correspond to the positions of the four bracket bodies at the top of the section air duct 2 one by one, and then the four steel wires 13 hanging from the upper end of the section air duct 2 are passed through the fixing holes 12 of the four bracket bodies at the bottom of the section air duct 2 one by one and knotted and fixed, ensuring that the length of the steel wire 13 between the two adjacent interlocking fixing shafts 11 on the same steel wire 13 after knotting and fixing is equal to the vertical distance between the first vertical channel steels 3 corresponding to the two adjacent bracket bodies on the steel wire 13, and at this time, each section air duct 2 is at the design height;

[0040] Step 6: After adjusting to ensure that each section of the air duct 2 is located at the designed position, start the winch to lift the four steel wires 13, so that each bracket body can automatically unfold through the rotating shaft 8 to adapt to the wall 1 under the combined effect of its own weight and the tension of the steel wires 13, until the outer surface of the anti-slip plate 7 of each bracket body is close to the wall 1, and at the same time, the angle limit plate 10 ensures that the bracket body will not be over-expanded, and remove the lifting wire at the top of the first section of the air duct 2, so that each bracket body is tightened under the deadweight load of the air duct 2 to achieve the best stable state, as shown in the attached figure. Figure 4 ~Attached Figure 6 As shown, after the adjustment is completed, the stability of the entire air duct system is ensured by reinforcing the first section of the air duct 2 at the top of the air duct and the tail section of the air duct 2 at the bottom of the air duct, thereby completing the installation of the self-supporting bracket; it overcomes the problems of increased high-altitude work volume, time-consuming and labor-intensive, and high safety risks caused by the use of the upright installation method when installing the existing high-rise building air ducts, as well as the problem that the vertical brackets in the fully enclosed or semi-enclosed air ducts cannot be installed or are difficult to install.

[0041] During the specific implementation process, the first vertical channel steel 3 and the second vertical channel steel 4 are both made of channel steel with a web height of 50 mm; the support arm 5 is made of channel steel with a web height of 40 mm; the rotating shaft 8 is made of round steel with a diameter of 14 mm; the diameter of the steel wire 13 is 16 mm; the air duct 2 has a position reserved for a positive pressure air supply port, and when the positive pressure air supply device needs to be installed after the air duct 2 is installed, the steel wire 13 can be directly cut.

[0042] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-supporting bracket for a high-rise building air duct, arranged between a wall (1) and an air duct (2), characterized in that: The invention comprises a support body, wherein the support body comprises a first vertical channel steel (3) and a second vertical channel steel (4) which are arranged with openings opposite to each other, a plurality of groups of support arms (5) which are rotatably connected to the first vertical channel steel (3) and the second vertical channel steel (4) and which are distributed up and down, a T-shaped fixing member (6) is fixed to the outer surface of the web of the first vertical channel steel (3), the first vertical channel steel (3) is connected to the air duct (2) via the fixing member (6), and an anti-slip plate (7) is arranged on the outer surface of the web of the second vertical channel steel (4), and the outer surface of the anti-slip plate (7) contacts the wall (1).

2. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: The first vertical channel steel (3) and the support arm (5), as well as the second vertical channel steel (4) and the support arm (5) are connected via a rotating shaft (8).

3. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: The fixing member (6) is provided with a first mounting hole (9), the integral flange of the air duct (2) is provided with a second mounting hole matching the first mounting hole (9), and the first vertical channel steel (3) is connected to the air duct (2) via bolts that are simultaneously inserted into the first mounting hole (9) and the second mounting hole.

4. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: An angle limiting plate (10) is fixed to the top end of the first vertical channel steel (3).

5. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: The anti-slide plate (7) is a steel plate, and the outer surface of the anti-slide plate (7) is provided with steel bar barbs.

6. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: The outer surface of the wing plate of the second vertical channel steel (4) is provided with a locking fixing shaft (11), the locking fixing shaft (11) is provided with a fixing hole (12) which passes through from top to bottom, and a steel wire (13) is passed through and fixed in the fixing hole (12).

7. A self-supporting bracket for high-rise building air duct according to claim 1, characterized in that: The length of the support arm (5) is slightly greater than the vertical distance from the outer surface of the air duct (2) to the wall (1).

Images