Truss for building construction

Abstract

The utility model discloses a truss for building construction, which relates to the technical field of building construction and comprises a base, a support frame is fixedly connected inside the base, a first motor is fixedly connected below the support frame, an output shaft of the first motor is fixedly connected with a first chain wheel, and a fixing frame is fixedly connected inside the base. A threaded rod is rotationally connected to one side of the fixing frame, a second chain wheel is fixedly connected to the outer surface of the threaded rod, a transmission chain is arranged between the first chain wheel and the second chain wheel, and a lifting rod with the top end located outside the base is arranged on the outer surface of the threaded rod. According to the truss for building construction, through cooperative arrangement of the first motor, the first chain wheel, the fixing frame, the threaded rod, the second chain wheel, the transmission chain and the lifting rod, the height of the truss main body can be changed to a certain extent in the using process, so that the effect of conveniently changing the height of the truss is achieved, and the purpose of meeting the use at different heights is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a truss used in building construction. Background Art

[0002] In recent years, with the rapid development of large-span venues, ceilings, and platform structures, steel tube truss structures have been increasingly widely used in engineering. For commonly used intersecting node trusses, since the radial stiffness of the node main pipe is much smaller than the axial stiffness of the branch pipe, and there is a large stress concentration and complex residual stress at the weld toe, the main pipe at the intersecting part is the most vulnerable position. Following the principle of "strong node and weak rod", it is generally necessary to reinforce the main branch pipe intersection of the truss node to improve the bearing capacity of the pipe node. Common reinforcement methods include built-in stiffening ring reinforcement, built-in plug-in reinforcement, local thickening reinforcement, pad reinforcement, ring plate reinforcement, and external stiffening rib reinforcement.

[0003] In order to match the heights of different building exterior walls, the existing trusses used in construction generally have different height specifications for the horizontal trusses of the scaffolding. When the height of the building exterior wall cannot be assembled with the horizontal trusses of the above specifications, it is necessary to customize the trusses, which have poor adjustability. In addition, some trusses are fixed and installed by fixing bolts and fixing nuts during assembly, and lack other limiting structures to limit and fix the trusses. As a result, the trusses will become loose when used for a long time, which will cause the trusses to be unreliable. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a truss for building construction, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a truss for construction, including a base, a support frame fixedly connected to the inside of the base, a first motor fixedly connected to the bottom of the support frame, a first sprocket fixedly connected to the output shaft of the first motor, a fixing frame fixedly connected to the inside of the base, a threaded rod rotatably connected to one side of the fixing frame, a second sprocket fixedly connected to the outer surface of the threaded rod, a transmission chain arranged between the first sprocket and the second sprocket, a lifting rod with a top end located outside the base arranged on the outer surface of the threaded rod, a fixing seat fixedly connected to the upper end of the lifting rod, and a truss body arranged above the fixing seat.

[0006] Optionally, a limit plate is fixedly connected to the outer surface of the lifting rod, a limit switch is arranged above the limit plate, the limit switch is electrically connected to the first motor through a wire, and the limit plate is located inside the base.

[0007] Optionally, a mounting block is fixedly connected at the bottom of the truss body, a mounting hole matching the mounting block is opened at the top of the fixing seat, a fixing groove is opened inside the mounting block, a fixing block is rotatably connected inside the fixing groove, and a square groove is opened below the fixing block.

[0008] Optionally, a torsion block is fixedly connected to the top of the fixed block, an arc-shaped groove is provided on the outer surface of the torsion block, a positioning block is slidably connected to one side of the arc-shaped groove, and a positioning hole adapted to the positioning block is provided on one side of the mounting hole.

[0009] Optionally, there are multiple positioning blocks, and the multiple positioning blocks are evenly distributed around the fixed block.

[0010] Optionally, a control switch is provided on one side of the truss body, the control switch is electrically connected to the first motor via a wire, and a fixing bolt is provided between the fixing seat and the truss body.

[0011] The utility model provides a truss for building construction, which has the following beneficial effects:

[0012] 1. The truss for building construction can change the height of the truss body to a certain extent during use through the coordinated arrangement of the first motor, the first sprocket, the fixing frame, the threaded rod, the second sprocket, the transmission chain, the lifting rod, the fixing seat, and the truss body, thereby facilitating the change of the truss height and achieving the purpose of satisfying the use at different heights.

[0013] 2. The truss for building construction can increase the stability of the truss body during use through the coordinated arrangement of the mounting block, the fixing block, the torsion block and the positioning block, thereby reducing the shaking of the truss body during long-term use and achieving the purpose of increasing the stability of the truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model in front view section;

[0016] Figure 3 This is a schematic diagram of the structure of the base of the utility model in a top view;

[0017] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 5 It is a schematic diagram of the structure of the top view of the section of the mounting block of the utility model.

[0019] In the figure: 1. base; 2. support frame; 3. first motor; 4. first sprocket; 5. fixed frame; 6. threaded rod; 7. second sprocket; 8. transmission chain; 9. lifting rod; 10. fixed seat; 11. truss body; 12. limit plate; 13. mounting block; 14. fixing block; 15. torsion block; 16. positioning block. Implementation

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a truss for building construction, including a base 1, a support frame 2 is fixedly connected inside the base 1, a first motor 3 is fixedly connected below the support frame 2, an output shaft of the first motor 3 is fixedly connected to a first sprocket 4, a fixing frame 5 is fixedly connected inside the base 1, a threaded rod 6 is rotatably connected to one side of the fixing frame 5, a second sprocket 7 is fixedly connected to the outer surface of the threaded rod 6, a transmission chain 8 is arranged between the first sprocket 4 and the second sprocket 7, a lifting rod 9 with a top located outside the base 1 is arranged on the outer surface of the threaded rod 6, a fixing seat 10 is fixedly connected to the upper end of the lifting rod 9, a truss body 11 is arranged above the fixing seat 10, a limit plate 12 is fixedly connected to the outer surface of the lifting rod 9, a limit switch is arranged above the limit plate 12, the limit switch is electrically connected to the first motor 3 through a wire, the limit plate 12 is located inside the base 1, a control switch is arranged on one side of the truss body 11, the control switch is electrically connected to the first motor 3 through a wire, and a fixing bolt is arranged between the fixing seat 10 and the truss body 11.

[0022] When in use, the staff is on the truss body 11. When the height of the truss body 11 needs to be changed, the first motor 3 is started by the control switch. The first motor 3 drives the first sprocket 4 to rotate, and the first sprocket 4 drives the second sprocket 7 to rotate through the transmission chain 8. The second sprocket 7 drives the threaded rod 6 to rotate. The threaded rod 6 drives the lifting rod 9 to move up and down through the thread. The lifting rod 9 drives the truss body 11 to move up and down through the fixed seat 10, thereby changing the height of the truss body 11, thereby moving the staff to a suitable height. Example

[0023] See also Figures 4 to 5The utility model provides a technical solution: a truss for building construction, wherein a mounting block 13 is fixedly connected to the bottom of the truss body 11, a mounting hole matched with the mounting block 13 is opened on the top of the fixing seat 10, a fixing groove is opened inside the mounting block 13, a fixing block 14 is rotatably connected inside the fixing groove, a square groove is opened below the fixing block 14, a torsion block 15 is fixedly connected to the top of the fixing block 14, an arc-shaped slide groove is opened on the outer surface of the torsion block 15, a positioning block 16 is slidably connected to one side of the arc-shaped slide groove, a positioning hole matched with the positioning block 16 is opened on one side of the mounting hole, and a plurality of positioning blocks 16 are evenly distributed around the fixing block 14.

[0024] When in use, in addition to the bolt connection between the fixing seat 10 and the truss itself, the mounting block 13 under the truss body 11 is inserted into the corresponding mounting hole of the fixing seat 10, and then the tool is inserted into the square groove of the fixing block 14 and drives the fixing block 14 to rotate, and the fixing block 14 drives the torsion block 15 to rotate, and the torsion block 15 drives the positioning block 16 to be inserted into the positioning hole in the fixing seat 10, adding additional fixation to the truss and increasing the stability of the truss.

[0025] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A truss for building construction, comprising a base (1), characterized in that: The base (1) is fixedly connected to a support frame (2) inside, a first motor (3) is fixedly connected below the support frame (2), an output shaft of the first motor (3) is fixedly connected to a first sprocket (4), a fixing frame (5) is fixedly connected inside the base (1), a threaded rod (6) is rotatably connected to one side of the fixing frame (5), a second sprocket (7) is fixedly connected to the outer surface of the threaded rod (6), a transmission chain (8) is arranged between the first sprocket (4) and the second sprocket (7), a lifting rod (9) is arranged on the outer surface of the threaded rod (6) with the top end located outside the base (1), the upper end of the lifting rod (9) is fixedly connected to a fixing seat (10), and a truss body (11) is arranged above the fixing seat (10).

2. The truss for building construction according to claim 1, characterized in that: The outer surface of the lifting rod (9) is fixedly connected to a limit plate (12), a limit switch is arranged above the limit plate (12), the limit switch is electrically connected to the first motor (3) via a wire, and the limit plate (12) is located inside the base (1).

3. The truss for building construction according to claim 1, characterized in that: A mounting block (13) is fixedly connected at the bottom of the truss body (11), a mounting hole matching the mounting block (13) is provided at the top of the fixing seat (10), a fixing groove is provided inside the mounting block (13), a fixing block (14) is rotatably connected inside the fixing groove, and a square groove is provided below the fixing block (14).

4. The truss for building construction according to claim 3, characterized in that: A torsion block (15) is fixedly connected to the upper portion of the fixed block (14); an arc-shaped sliding groove is provided on the outer surface of the torsion block (15); a positioning block (16) is slidably connected to one side of the arc-shaped sliding groove; and a positioning hole adapted to the positioning block (16) is provided on one side of the mounting hole.

5. The truss for building construction according to claim 4, characterized in that: There are a plurality of positioning blocks (16), and the plurality of positioning blocks (16) are evenly distributed around the fixing block (14).

6. The truss for building construction according to claim 1, characterized in that: A control switch is provided on one side of the truss body (11), the control switch being electrically connected to the first motor (3) via a wire, and a fixing bolt is provided between the fixing seat (10) and the truss body (11).

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