Steel structure net rack jacking device

Abstract

A steel structure net rack jacking device comprises a bottom supporting structure, a transmission device, a jacking device body and a steel structure net rack, the transmission device comprises a motor, a worm, a worm gear and a rotating shaft rod which are sequentially in transmission connection, the jacking device body comprises an inclined strut, a supporting sleeve and a sliding rod, the steel structure net rack is arranged at the top of the sliding rod, and one end of the inclined strut is fixed to the rotating shaft rod; the lower portion of the sliding rod is limited in the supporting sleeve, a pulley or a sliding shaft is arranged at the bottom of the sliding rod, the pulley or the sliding shaft penetrates through the rail through hole, and the side wall of the supporting sleeve is provided with a sliding way for the inclined strut to pass through. The gravity center of the steel structure net rack and the gravity center of the transmission device are located on the same vertical midperpendicular, the structural design is reasonable, the steel structure net rack is not likely to turn outwards, the structure is simple, stability is high, and the steel structure net rack can be disassembled when sliding out of the sliding plate.

Description

Technical Field

[0001] This application relates to the field of building construction, and specifically to a steel structure grid jacking device. Background Art

[0002] Steel structure grid is a spatial structural system composed of steel. Its main feature is that it provides support and stability through a mesh structure. This structure is usually used in large buildings, such as stadiums and exhibition centers, because it can withstand large loads and can provide a large spatial span in the structural design. At present, the lifting method of steel structure grid mainly adopts large crane lifting. The use of cranes relatively increases the project cost and has poor stability. Utility Model Content

[0003] The purpose of the utility model is to provide a steel structure grid jacking device, which is short-range, simple and highly stable.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A steel structure grid lifting device is characterized in that it includes a bottom supporting structure, a transmission device, a lifting device and a steel structure grid, the transmission device includes a motor, a worm, a worm wheel and a rotating shaft connected in sequence, the lifting device includes a diagonal brace, a support sleeve and a sliding rod, the steel structure grid is arranged on the top of the sliding rod, one end of the diagonal brace is fixed to the rotating shaft, and the other end is provided with a track through hole, the lower part of the sliding rod is limited to the support sleeve, the bottom of the sliding rod is provided with a pulley or a slide shaft, the pulley or slide shaft is passed through the track through hole, and the side wall of the support sleeve is provided with a slideway for the diagonal brace to pass through.

[0006] Further preferably, the worm is provided at the output end of the motor, and the rotating shaft is connected to the bottom support structure through a rotating support.

[0007] Furthermore, the rotating support includes at least two groups of U-shaped supports, and the U-shaped supports are connected to the rotating shaft through bearings.

[0008] Furthermore, the worm is arranged vertically, two worm wheels are arranged on both sides of the worm and meshed with the worm, two rotating shafts are provided, symmetrically arranged on both sides of the worm, and each rotating shaft is connected to two diagonal braces.

[0009] Furthermore, the four sliding rods are supported on the bottom surface of the jacking plate, and the top surface of the jacking plate is provided with a limiting block for limiting the steel structure grid.

[0010] Furthermore, the limiting steel structure grid includes a grid body, a sliding plate, a fixed block and a limiting groove arranged on the bottom surface of the fixed block. The sliding plate is plug-connected to the grid body, the fixed block is arranged at the bottom of the sliding plate, and the limiting block is adapted to the size of the limiting groove.

[0011] Furthermore, the grid body includes four columns and X-shaped shear braces arranged between the columns. The four columns are each provided with a socket, and the four corners of the sliding plate are respectively inserted into the socket.

[0012] In addition, the end of the diagonal support close to the supporting sleeve is arc-shaped.

[0013] More preferably, the bottom supporting structure includes a concrete column and a steel structure provided on the top surface of the concrete column, and the supporting sleeve is fixedly connected to the steel structure via embedded parts.

[0014] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0015] The utility model uses a motor to drive the worm and the worm wheel to rotate, and then drives the rotating shaft to rotate, drives the sliding rod to move up and down in the supporting sleeve through the diagonal support, and then drives the steel structure grid to move up and down. The steel structure grid can be detachably installed on the transmission device, and the center of gravity of the steel structure grid and the center of gravity of the transmission device are located on the same vertical median line. The structural design is reasonable, the steel structure grid cannot be turned outward, the structure is simple, and the stability is strong. The steel structure grid can be disassembled by sliding the sliding plate out of the steel structure grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a steel structure grid jacking device for this application;

[0017] Figure 2 Illustration of the position relationship between the sliding plate and the jack involved in this application;

[0018] Figure 3 This is a diagram of the transmission structure involved in this application;

[0019] Figure 4 This application involves Figure 3 A magnified structural diagram;

[0020] Figure 5 This application involves Figure 3 Enlarged structural diagram of Part B. DETAILED DESCRIPTION

[0021] In order to make the technical means, innovative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below.

[0022] The embodiments described herein are specific embodiments of the present invention and are used to illustrate the concept of the present invention. They are illustrative and exemplary and should not be interpreted as limiting the embodiments and scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the disclosure of the specification of this application, including any obvious replacements and modifications of the embodiments described herein.

[0023] A steel structure grid lifting device, such as Figures 1 to 5 As shown, it includes a bottom supporting structure 1, a transmission device 2, a lifting device 3 and a steel structure grid 4. The transmission device 2 includes a motor 21, a worm 22, a worm wheel 23 and a rotating shaft 24 that are sequentially connected. The lifting device 3 includes a diagonal brace 31, a support sleeve 32 and a sliding rod 33. The steel structure grid 4 is arranged on the top of the sliding rod 33. One end of the diagonal brace 31 is fixed to the rotating shaft 24, and the other end is provided with a track through hole 25. The lower part of the sliding rod 33 is limited in the support sleeve 32. A pulley or slide shaft 34 is provided at the bottom of the sliding rod 33. The pulley or slide shaft 34 is passed through the track through hole 25. The side wall of the support sleeve 32 is provided with a slideway 26 for the diagonal brace 31 to pass through. The rotating support 29 includes at least two groups of U-shaped supports, which are connected to the rotating shaft 24 through bearings. The worm 22 is arranged vertically, and the two worm wheels 23 are arranged on both sides of the worm 22 and meshed with the worm 22. There are two rotating shafts 24, which are symmetrically arranged on both sides of the worm 22. Each rotating shaft 24 is connected to two diagonal braces 31.

[0024] The worm 22 is arranged at the output end of the motor 21, and the rotating shaft 24 is connected to the bottom support structure 1 through the rotating support 29. The single motor 21 drives the worm 22 to rotate, and the worm 22 drives the worm wheels 23 on both sides to rotate, and the worm wheels 23 drive the rotating shaft 24 to rotate. The rotating shaft 24 pushes up or pulls down the steel structure grid 4 by pressing down or lifting up the sliding rod 33.

[0025] Four sliding rods 33 are supported on the bottom surface of the jacking plate 27. The top surface of the jacking plate 27 is provided with a limit block 28 for limiting the position of the steel structure grid 4. The limit steel structure grid 4 includes a grid body 41, a sliding plate 42, a fixed block 43 and a limit slot 44 provided on the bottom surface of the fixed block 43. The sliding plate 42 is plug-connected to the grid body 41. The fixed block 43 is provided at the bottom of the sliding plate 42. The limit block 28 is adapted to the size of the limit slot 44. The grid body 41 is an axisymmetric structure as a whole, including four columns and X-shaped shear braces provided between the columns. Each of the four columns is provided with a socket 45. The four corners of the sliding plate 42 are respectively inserted into the socket 45. That is, the center of gravity of the steel structure grid and the center of gravity of the transmission device are located on the same vertical median line, making it impossible for the steel structure grid to flip outward.

[0026] The end of the diagonal brace 31 close to the supporting sleeve 32 is arc-shaped. In specific implementation, the diagonal brace 31 can be replaced by a hydraulic rod. One end of the hydraulic rod should be hingedly connected to the bottom of the sliding rod 33. The hydraulic rod shortens or lengthens as the rotating shaft 24 rotates, thereby driving the sliding rod 33 to move down or up, and then pushing up or pulling down the steel structure grid 4.

[0027] The working principle of the utility model is as follows: when a jacking operation is required, the motor is started, and the output end of the motor drives the worm to rotate through the coupling. When the worm rotates, it further drives the worm wheel to rotate, and then drives the two rotating shafts to rotate. When the rotating shaft rotates, it drives the diagonal support to rotate. At this time, the diagonal support drives the sliding rod to rise. During the process, the diagonal support will make the lower part of the sliding rod slide in the track through hole of the diagonal support according to the rotation angle. During the process, the sliding rod moves up and down, and the engagement facilitates the jacking operation of the sliding plate by the jacking plate, thereby further jacking up the steel structure grid. Or below, thereby completing the jacking or lowering operation, the steel structure grid cooperates with the entire jacking device, and only needs to set the corresponding sockets, which does not affect the overall supporting function of the steel structure grid. Alternatively, the sliding plate that mainly supports the steel structure grid is changed to a supporting frame body. For example, the supporting frame body is an I-shaped rod structure, and the rod structure of the I-shaped rod structure extends into the steel structure grid to form a support for the steel structure grid. The advantage of this solution is that the jacking of the steel structure grid can be completed without changing the main structure of the steel structure grid (setting the sockets). The disadvantage is that the stability performance is poor and it can be used in conjunction with a chain.

[0028] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A steel structure grid jacking device, characterized by: The invention comprises a bottom supporting structure (1), a transmission device (2), a lifting device (3) and a steel structure grid (4), wherein the transmission device (2) comprises a motor (21), a worm (22), a worm wheel (23) and a rotating shaft (24) connected in sequence, the lifting device (3) comprises a diagonal brace (31), a supporting sleeve (32) and a sliding rod (33), the steel structure grid (4) is arranged on the top of the sliding rod (33), one end of the diagonal brace (31) is fixed to the rotating shaft (24), and the other end is provided with a track through hole (25), the lower part of the sliding rod (33) is limited in the supporting sleeve (32), the bottom of the sliding rod (33) is provided with a pulley or a sliding shaft (34), the pulley or the sliding shaft (34) is passed through the track through hole (25), and the side wall of the supporting sleeve (32) is provided with a slideway (26) for the diagonal brace (31) to pass through.

2. A steel structure grid lifting device according to claim 1, characterized in that: The worm (22) is arranged at the output end of the motor (21), and the rotating shaft (24) is connected to the bottom support structure (1) via a rotating support (29).

3. A steel structure grid lifting device according to claim 2, characterized in that: The rotating support (29) comprises at least two groups of U-shaped supports, and the U-shaped supports are connected to the rotating shaft (24) via bearings.

4. A steel structure grid lifting device according to claim 3, characterized in that: The worm (22) is arranged vertically, and two worm wheels (23) are arranged on both sides of the worm (22) and meshed with the worm (22). Two rotating shafts (24) are provided and symmetrically arranged on both sides of the worm (22). Two diagonal braces (31) are connected to each rotating shaft (24).

5. A steel structure grid lifting device according to claim 4, characterized in that: The four sliding rods (33) are supported on the bottom surface of the lifting plate (27), and the top surface of the lifting plate (27) is provided with a limiting block (28) for limiting the steel structure grid (4).

6. A steel structure grid lifting device according to claim 5, characterized in that: The limiting steel structure grid (4) comprises a grid body (41), a sliding plate (42), a fixed block (43) and a limiting groove (44) provided on the bottom surface of the fixed block (43); the sliding plate (42) is plug-connected to the grid body (41); the fixed block (43) is provided at the bottom of the sliding plate (42); and the limiting block (28) is adapted to the size of the limiting groove (44).

7. A steel structure grid lifting device according to claim 6, characterized in that: The grid body (41) comprises four columns and X-shaped shear braces arranged between the columns. The four columns are each provided with an insertion hole (45), and the four corners of the sliding plate (42) are respectively inserted into the insertion holes (45).

8. The steel structure grid lifting device according to claim 5, characterized in that: The end of the diagonal support (31) close to the supporting sleeve (32) is in an arc shape.

9. A steel structure grid lifting device according to any one of claims 1 to 8, characterized in that: The bottom support structure (1) comprises a concrete column (11) and a steel structure (12) arranged on the top surface of the concrete column (11); the support sleeve (32) and the steel structure (12) are fixedly connected via embedded parts.

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