Temporary support of steel structure

Abstract

The utility model belongs to the technical field of steel structures, and discloses a steel structure temporary support which comprises four ladders and a supporting seat, and the ends of the adjacent ladders are rotationally assembled through connecting structures; the connecting structure comprises first turntables, a pin shaft and second turntables, a pair of first turntables is fixedly mounted at the end of the ladder on one side, a pair of second turntables is fixedly mounted at the end of the ladder on the other side, through holes are formed in the centers of the first turntables and the centers of the second turntables, and the same pin shaft penetrates through the aligned through holes; three rotating seats are evenly and fixedly installed on the upper side of the supporting seat, one end of a supporting frame is rotationally installed on each rotating seat, and a positioning structure used for limiting the connecting structure is installed at the other end of each supporting frame. The four ladders connected through the connecting structures can form a part of the main body, and the other part of the main body formed by the supporting seats, the supporting frames, the positioning structures and the like can be stacked and unfolded; the integration level is high, and transportation, installation and disassembly are convenient.

Description

Technical Field

[0001] This application belongs to the technical field of steel structures, specifically a temporary steel structure support. Background Art

[0002] As a kind of erection framework, the temporary steel structure support can be applied to near-ground working conditions such as workshop assembly work, welding operations, spraying operations, etc., and is mainly composed of strip-shaped main bodies (such as I-beams, square steels or steel pipes, etc.) and connecting parts connected by bolts.

[0003] The existing temporary steel structure supports are not convenient to use. For example, during transportation, each part of the parts is separated and transferred in a turnover cart, which is prone to problems such as incomplete carrying or loss during transportation, resulting in incomplete splicing when arriving at the site; in addition, the number of connecting parts that need to be installed by bolt groups is large, and the installation and disassembly processes are cumbersome and time-consuming.

[0004] Therefore, in order to solve the above problems, a temporary steel structure support is proposed. Utility Model Content

[0005] The purpose of the present utility model is to propose a temporary steel structure support aiming at the above existing problems, which can be quickly installed on-site and is convenient to disassemble.

[0006] The temporary steel structure support includes four ladders and a support base. The ends of adjacent ladders are rotationally assembled through a connection structure; the connection structure includes a first turntable, a pin shaft and a second turntable. A pair of first turntables are fixedly installed at the end of one side of the ladder, and a pair of second turntables are fixedly installed at the end of the other side of the ladder. Through holes are opened at the centers of the first turntable and the second turntable, and the same pin shaft is inserted into the aligned through holes; three rotating seats are evenly and fixedly installed on the upper side of the support base, one end of a support frame is rotationally installed on each rotating seat, and a positioning structure for limiting the connection structure is installed at the other end of the support frame.

[0007] Specifically, the positioning structure includes a disc body and a screw. A pair of disc bodies are fixedly installed at the ends of the support frame far from the rotating seats. A threaded hole is opened at the end of the disc body. Positioning holes are opened on both the first turntable and the second turntable. A screw is screwed into the threaded hole, and the screw penetrates into the aligned positioning hole.

[0008] Specifically, when the positioning holes on the connection structure in the middle are aligned, the included angle between adjacent two ladders is 180°; when the positioning holes on the connection structures on both sides are aligned, the included angle between adjacent two ladders is 120°.

[0009] Optionally, the threaded holes are 2 - 3 distributed in a circular pattern. Correspondingly, the positioning holes opened on the first turntable and the second turntable are adapted to the threaded holes.

[0010] Specifically, the heights of the three rotating seats increase in sequence from one end of the support seat to the other end.

[0011] In addition, stabilizing structures are provided at the lower ends of the two ladders on both sides.

[0012] Specifically, the stabilizing structure includes a bottom box, guide rods, and cylindrical feet. The bottom boxes are respectively fixedly installed at the lower ends of the two ladders on both sides. Storage holes are staggeredly formed at both ends of the bottom box. Guide rods are slidably installed in the storage holes. Cylindrical feet are fixedly installed at the ends of the guide rods extending out of the storage holes.

[0013] Furthermore, the guide rods are in a rectangular rod shape, and the shape of the storage holes is adapted to that of the guide rods.

[0014] Furthermore, the stabilizing structure further includes limit blocks and rubber sleeves. Limit blocks are fixedly installed at the ends of the guide rods extending into the storage holes. Rubber sleeves are fixedly installed at the orifices of the storage holes. The guide rods are press-fitted into the rubber sleeves.

[0015] Specifically, support plates are fixedly installed on the upper sides of the two ladders in the middle.

[0016] The present utility model has the following advantages:

[0017] In the present utility model, the four ladders connected by the connection structure can form a part of the main body, which can be quickly folded and unfolded. In addition, the other part of the main body composed of components such as the support seat, support frame, and positioning structure can also be stacked and unfolded; it has a high integration degree, is convenient for transportation. During on-site installation, the connection structure can be formed by limiting each connection structure through the positioning structure. It has a high support strength, is convenient for operation, and is convenient for disassembly and storage after the operation is completed, which can greatly reduce the operation amount. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is the main structural schematic front view when the present utility model is unfolded for use;

[0020] Figure 2 It is Figure 1 the enlarged structural schematic view of part a in

[0021] Figure 3It is a schematic top view of the connection structure in the middle of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the four ladders of the present utility model when folded and stored;

[0023] Figure 5 It is a schematic structural diagram of the three support frames of the present utility model when folded and stored;

[0024] Figure 6 It is a schematic cross-sectional view of the stable structure of the present utility model.

[0025] In the figure: 1. Ladder, 2. Connection structure, 21. First turntable, 22. Pin shaft, 23. Second turntable, 3. Support base, 4. Rotating seat, 5. Support frame, 6. Positioning structure, 61. Disk body, 62. Screw, 7. Stable structure, 71. Cylindrical foot, 72. Limit block, 73. Guide rod, 74. Bottom box, 75. Rubber sleeve, 8. Support plate, 9. Positioning hole. Specific embodiments

[0026] The present utility model will be described in detail below in conjunction with the embodiments shown in the drawings. However, this embodiment does not limit the protection scope of the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on this embodiment is included in the protection scope of the present utility model.

[0027] The present utility model discloses a steel structure temporary support. Refer Figures 1-3 As shown, it includes four ladders 1 and a support base 3. The ends of adjacent ladders 1 are rotationally assembled through a connection structure 2; the connection structure 2 enables the four ladders 1 to be folded and stored or unfolded and used at 3 connection structures 2; the state when folded and stored is as Figure 4 shown.

[0028] As Figure 3 shown, the connection structure 2 includes a first turntable 21, a pin shaft 22, and a second turntable 23. A pair of first turntables 21 are fixedly installed at the end of one side of the ladder 1, and a pair of second turntables 23 are fixedly installed at the end of the other side of the ladder 1. Through holes are opened at the centers of the first turntable 21 and the second turntable 23, and the same pin shaft 22 is inserted through the aligned through holes; the first turntable 21 and the second turntable 23 can rotate around the pin shaft 22 as the two sides of the ladder 1 swing.

[0029] Three rotating seats 4 are evenly and fixedly installed on the upper side of the support base 3. One end of a support frame 5 is rotatably installed on each of the rotating seats 4, and a positioning structure 6 for limiting the connecting structure 2 is installed at the other end of the support frame 5. The support frame 5 can swing around the rotating seat 4. When it swings to the corresponding connecting structure 2, the positioning structure 6 can be connected to the connecting structure 2 and limit the swinging positions of the first turntable 21 and the second turntable 23, enabling quick installation and convenient disassembly.

[0030] As Figure 2 shown, the positioning structure 6 includes a disc body 61 and a screw 62. A pair of disc bodies 61 are fixedly installed at the ends of the support frame 5 far from the rotating seat 4. A threaded hole is provided at the end of the disc body 61. Positioning holes 9 are provided on both the first turntable 21 and the second turntable 23. The screw 62 is screwed into the threaded hole and passes through the aligned positioning holes 9. When the disc body 61 swings with the support frame 5 to align with the first turntable 21, the threaded hole also aligns with the through-hole positioning holes 9 on the first turntable 21 and the second turntable 23. Installing the screw 62 can limit the positioning structure 6, and removing the screw 62 can release the limitation on the positioning structure 6.

[0031] When the positioning holes 9 on the connecting structure 2 in the middle are aligned, the included angle between two adjacent ladders 1 is 180°. After being limited by the positioning structure 6, the two ladders 1 in the middle can form a longer walking platform. When the positioning holes 9 on the connecting structures 2 on both sides are aligned, the included angle between two adjacent ladders 1 is 120°. After being limited by the positioning structure 6, the two ladders 1 on both sides will tilt at an angle of 120°, which is convenient for the staff to walk up and also supports the two ladders 1 in the middle.

[0032] Optionally, there are 2 - 3 threaded holes distributed in a circle. Correspondingly, the positioning holes 9 provided on the first turntable 21 and the second turntable 23 are adapted to the threaded holes. The setting of 2 - 3 threaded holes can increase the number of screws 62 installed and the operation amount is not large, thereby improving the connection strength and limiting ability between the positioning structure 6 and the connecting structure 2.

[0033] As Figure 5 shown, the heights of the three rotating seats 4 increase sequentially from one end of the support base 3 to the other end. When the three support frames 5 swing to the same side and are parallel to the support base 3, the three support frames 5 can be stacked to reduce the occupied space and facilitate storage and transfer.

[0034] In addition, to improve the stability during overall placement and use, a stabilizing structure 7 is provided at the lower ends of the two side ladders 1.

[0035] Specifically, as Figure 6As shown in the figure, the stabilizing structure 7 includes a bottom box 74, guide rods 73, and cylindrical feet 71. The bottom box 74 is fixedly installed at the lower ends of the two ladders 1 on both sides respectively. Storage holes are provided at both ends of the bottom box 74 in a staggered manner, and guide rods 73 are slidably installed in the storage holes. Cylindrical feet 71 are fixedly installed at one ends of the guide rods 73 extending out of the storage holes. By pushing or pulling the cylindrical feet 71, the guide rods 73 can be telescoped in the storage holes. After pulling the two cylindrical feet 71 away from each other, the distance between the two cylindrical feet 71 can be increased, improving the stability of the placement of the two ladders 1 on both sides. After pushing the two cylindrical feet 71 closer to each other, the occupied space can be reduced, which is beneficial for storage and transfer.

[0036] The guide rods 73 are rectangular rod-shaped structures, and the shape of the storage holes is adapted to that of the guide rods 73, which can prevent the guide rods 73 from rotating circumferentially in the storage holes, thereby preventing the cylindrical feet 71 from rotating circumferentially.

[0037] The stabilizing structure 7 further includes limit blocks 72 and rubber sleeves 75. Limit blocks 72 are fixedly installed at one ends of the guide rods 73 extending into the storage holes, and rubber sleeves 75 are fixedly installed at the orifices of the storage holes. The guide rods 73 are press-fitted into the rubber sleeves 75. The rubber sleeves 75 can increase the damping during the translational movement of the guide rods 73, having a certain positioning ability to prevent the guide rods 73 from moving axially. When the guide rods 73 extend to the maximum position, the limit blocks 72 abut against the rubber sleeves 75 to prevent the guide rods 73 from falling out of the storage holes.

[0038] In addition, support plates 8 are fixedly installed on the upper sides of the two middle ladders 1. The support plates 8 are used to increase the acting area, facilitating the walking of the staff.

[0039] The working principle of this embodiment:

[0040] During use, first expand the adjacent ladders 1 respectively with the connection structure 2 as the center.

[0041] Then expand the three support frames 5 on the support base 3. The positioning structures 6 can be aligned on both sides of the connection structure 2 respectively, and each connection structure 2 is limited by the installed screws 62. The two middle ladders 1 can form a longer walking platform, and the two ladders 1 on both sides will be placed obliquely at an angle of 120°.

[0042] In addition, the cylindrical feet 71 on both sides of the stabilizing structure 7 can be pulled out to improve the placement stability, and the staff can walk from the two ladders 1 on both sides to the support plates 8 of the two middle ladders 1 for operation.

[0043] After the operation is completed, remove the screws 62 in the positioning structure 6. The four ladders 1 can be folded and stored, and the three support frames 5 on the support base 3 can be stacked and stored, which is convenient for temporary erection on site, and is also convenient to remove and store after the work is completed.

[0044] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. Temporary steel structure support, characterized in that: It comprises four ladders (1) and a support base (3), wherein the ends of adjacent ladders (1) are rotatably assembled via a connecting structure (2); The connection structure (2) comprises a first rotating disk (21), a pin shaft (22) and a second rotating disk (23); a pair of first rotating disks (21) are fixedly mounted on the end of the ladder (1) on one side, and a pair of second rotating disks (23) are fixedly mounted on the end of the ladder (1) on the other side; through holes are provided at the centers of the first rotating disk (21) and the second rotating disk (23); and a same pin shaft (22) is passed through the aligned through holes; Three rotating seats (4) are evenly and fixedly mounted on the upper side of the support seat (3), and one end of a support frame (5) is rotatably mounted on each of the rotating seats (4), and a positioning structure (6) for defining the connection structure (2) is mounted on the other end of the support frame (5).

2. The temporary steel structure support according to claim 1, characterized in that: The positioning structure (6) comprises a disk body (61) and a screw (62); a pair of disk bodies (61) are fixedly mounted on the ends of the support frame (5) away from the rotating seat (4); screw holes are provided at the ends of the disk bodies (61); the first rotating disk (21) and the second rotating disk (23) are both provided with positioning holes (9); screws (62) are screwed into the screw holes, and the screws (62) are inserted into the aligned positioning holes (9).

3. The temporary steel structure support according to claim 2, characterized in that: When the positioning holes (9) on the connecting structure (2) in the middle are aligned, the angle between two adjacent ladders (1) is 180°, and when the positioning holes (9) on the connecting structure (2) on both sides are aligned, the angle between two adjacent ladders (1) is 120°.

4. The temporary steel structure support according to claim 2, characterized in that: There are 2 to 3 screw holes distributed in a circumference, and correspondingly, the positioning holes (9) provided on the first rotating disk (21) and the second rotating disk (23) are adapted to the screw holes.

5. The temporary steel structure support according to claim 1, characterized in that: The heights of the three rotating seats (4) increase sequentially from one end to the other end of the supporting seat (3).

6. The temporary steel structure support according to claim 1, characterized in that: The lower ends of the ladders (1) on both sides are provided with stabilizing structures (7).

7. The temporary steel structure support according to claim 6, characterized in that: The stabilizing structure (7) comprises a bottom box (74), a guide rod (73) and a cylindrical foot (71); the bottom box (74) is fixedly mounted on the lower ends of the ladders (1) on both sides; storage holes are staggered at both ends of the bottom box (74); guide rods (73) are slidably mounted in the storage holes; and the ends of the guide rods (73) extending out of the storage holes are fixedly mounted with cylindrical feet (71).

8. The temporary steel structure support according to claim 7, characterized in that: The guide rod (73) is a rectangular rod-shaped structure, and the shape of the storage hole is compatible with the guide rod (73).

9. The temporary steel structure support according to claim 7, characterized in that: The stabilizing structure (7) further comprises a limit block (72) and a rubber sleeve (75); the limit block (72) is fixedly mounted on one end of the guide rod (73) extending into the storage hole; the rubber sleeve (75) is fixedly mounted at the opening of the storage hole; and the guide rod (73) is interference-fitted into the rubber sleeve (75).

10. The temporary steel structure support according to claim 1, characterized in that: Support plates (8) are fixedly mounted on the upper sides of the two ladders (1) in the middle.

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