A steel structure that is easy to lift

Abstract

The utility model discloses a steel structure which is easy to lift and lower, belongs to the technical field of steel structure, and aims at the problem that the height of the steel structure in the prior art is not easy to adjust and the operation is troublesome, and comprises two lower pillars, the interiors of the two lower pillars are slidably sleeved with upper pillars, the upper ends of the adjacent sides of the two upper pillars are fixed with cross bars, the outer surfaces of the two cross bars are sleeved with rod sleeves, the surfaces of the rod sleeves are provided with adjustment and limiting mechanisms corresponding to the cross bars, and the outer surfaces of the two lower pillars are fixed with two fixing blocks; the utility model realizes the function of adjusting the height of the upper pillars through the arrangement of structures such as a third gear, a second gear, a rotating shaft and a first gear, and limits the upper pillars after movement through an abutment mechanism to keep the upper pillars stable after movement, and then further limits and fixes the upper pillars through the arrangement of a clamping piece, so as to further improve the stability of the steel structure after adjustment.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structures, and in particular relates to a steel structure which is easy to lift. Background Art

[0002] Steel structure refers to a structural form that can bear and transfer loads and is made of steel plates and hot-rolled, cold-bent or welded profiles connected by connectors. The steel structure system has the comprehensive advantages of light weight, factory manufacturing, quick installation, short construction period, good seismic performance, fast investment recovery and less environmental pollution. Compared with reinforced concrete structure, it has unique advantages in the three aspects of "high, large and light".

[0003] In the prior art, steel structures are usually connected and fixed by bolts during installation. In actual installation, different usage scenarios require different heights of steel structures, which makes it difficult and laborious to adjust the height of the steel structures, causing inconvenience to the operators.

[0004] Therefore, a steel structure that is easy to lift is needed to solve the problem in the prior art that the height of the steel structure is difficult to adjust and the operation is relatively troublesome. Utility Model Content

[0005] The purpose of the utility model is to provide a steel structure that is easy to lift, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a steel structure that is easy to lift and comprises two lower supports, the interiors of the two lower supports are slidably sleeved with an upper support, the upper ends of the adjacent sides of the two upper supports are fixed with a cross bar, the outer surfaces of the two cross bars are sleeved with a rod sleeve, the surfaces of the rod sleeves are provided with an adjustment limit mechanism corresponding to the cross bar, the outer surfaces of the two lower supports are fixed with two fixing blocks, the adjacent sides of the two fixing blocks are rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly sleeved with a first gear, a rectangular through hole is opened on the mutually adjacent sides of the two lower supports, a rack is fixed on the outer surfaces of the two upper supports corresponding to the rectangular through hole, the first gear is meshed with the rack for transmission, a second gear is fixed on the end of the rotating shaft, the outer surfaces of the two lower supports are rotatably connected with a third gear, the third gear is meshed with the second gear for transmission, and the outer surfaces of the two upper supports corresponding to the rectangular through holes are provided with an abutment mechanism matching with the lower support.

[0007] It should be noted in the scheme that the abutment mechanism includes a connecting seat fixed to the outer surface of the upper pillar, a mounting seat is fixed to one side of the connecting seat, two symmetrically distributed rotating rods are rotatably connected to the surface of the connecting seat, the side surfaces of the rotating rods are in contact with the bottom surface of the mounting seat, a plurality of symmetrically distributed supporting rods are evenly fixed to one side of the lower pillar, the two rotating rods abut against the supporting rods located in the same horizontal plane, springs are fixed on both sides of the mounting seat, the bottom ends of the two springs are respectively fixed to the sides of the rotating rods, and a clamping piece is provided on the top surface of the mounting seat.

[0008] It is further worth explaining that the clamping member includes a plurality of limit blocks evenly fixed on the surface of the lower pillar and symmetrically distributed, the top surface of the mounting seat is provided with two rectangular grooves, the inner walls of the two rectangular grooves are fixed with fixing rods, the outer surfaces of the two fixing rods are slidably connected with sliding rods, the top ends of the two sliding rods are fixed with clamping plates, the two ends of the clamping plates are provided with clamping grooves, and the clamping grooves of the clamping plates are clamped with the limit blocks.

[0009] It should be further explained that a pull ring is fixed on one side of the clamping plate, a grip rod is fixed on the surface of the rotating rod, and a rotating rod is fixed on the surface of the third gear.

[0010] As a preferred embodiment, the adjustment limit mechanism includes four slide grooves opened on the surface of the rod sleeve and distributed in a rectangular shape, and limit seats are fixed on both sides of the two cross bars. The limit seats are slidably connected to the inner walls of the slide grooves, and four fixed plates distributed in a rectangular shape are fixed on both sides of the rod sleeve. The fixed plates correspond to the slide grooves one by one, and a plurality of limit holes are evenly opened on the top surface of the fixed plate. The limit holes of the fixed plate correspond to the limit seats and are plugged with plug rods.

[0011] As a preferred embodiment, two limit plates are fixed to the two ends of the rod sleeve corresponding to the cross bar, and the two limit plates on one side are in contact with the surface of the cross bar.

[0012] As a preferred implementation, a support rod is fixed between the upper support and the crossbar, and a bottom plate is fixed to the bottom surfaces of the two lower supports.

[0013] Compared with the prior art, the utility model provides a steel structure that is easy to lift, which has at least the following beneficial effects:

[0014] (1) The height adjustment function of the upper support is realized by setting the third gear, the second gear, the rotating shaft and the first gear, and the upper support is limited by the abutment mechanism after movement to maintain the stability of the upper support after movement. Then, the upper support is further limited and fixed by the setting of the clamping part, so as to further improve the stability of the steel structure after adjustment.

[0015] (2) By moving the two lower supports away from each other, the cross bar moves in the rod sleeve and drives the limit seat to slide in the slide groove. The limit seat improves the stability of the cross bar when it slides, thereby adjusting the width of the steel structure and increasing the use scenario of the steel structure. After adjustment, the insertion rod is inserted from the limit hole of the fixed plate and passes through the limit seat, thereby limiting the limit seat and then limiting the cross bar, maintaining the stability between the cross bar and the rod sleeve. The limit plate fits the cross bar, and the stability between the rod sleeve and the cross bar is improved when the cross bar slides to the end of the rod sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0020] Figure 5 It is a partial structural schematic diagram of the utility model.

[0021] In the figure: 1. lower support; 2. upper support; 3. cross bar; 4. limit plate; 5. rod sleeve; 6. lever; 7. rack; 8. limit block; 9. rectangular through hole; 10. bottom plate; 11. fixed block; 12. first gear; 13. rotating shaft; 14. second gear; 15. third gear; 16. connecting seat; 17. mounting seat; 18. rotating rod; 19. grip rod; 20. fixed rod; 21. clamping plate; 22. sliding rod; 23. spring; 24. limit hole; 25. plug rod; 26. limit seat; 27. fixed plate; 28. slide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5The utility model provides a steel structure that is easy to lift, including two lower pillars 1, the interiors of the two lower pillars 1 are slidably sleeved with upper pillars 2, the upper ends of the adjacent sides of the two upper pillars 2 are fixed with cross bars 3, the outer surfaces of the two cross bars 3 are sleeved with rod sleeves 5, and the surfaces of the rod sleeves 5 are provided with an adjustment limit mechanism corresponding to the cross bars 3. The outer surfaces of the two lower pillars 1 are fixed with two fixing blocks 11, and the adjacent sides of the two fixing blocks 11 are rotatably connected with a rotating shaft 13. The outer surface of the rotating shaft 13 is fixedly sleeved with a first gear 12, and the mutually adjacent sides of the two lower pillars 1 are provided with rectangular through holes 9, and the outer surfaces of the two upper pillars 2 are fixed with racks 7 corresponding to the rectangular through holes 9, and the first gear 12 is meshed with the rack 7 for transmission, and a second gear 14 is fixed to the end of the rotating shaft 13, and the outer surfaces of the two lower pillars 1 are rotatably connected with a third gear 15, and the third gear 15 is meshed with the second gear 14 for transmission, and the outer surfaces of the two upper pillars 2 are provided with abutment mechanisms that match the lower pillar 1 corresponding to the rectangular through holes 9.

[0024] Further as Figure 1 and Figure 3 As shown, it is worth specifically explaining that the abutment mechanism includes a connecting seat 16 fixed to the outer surface of the upper support 2, and a mounting seat 17 is fixed to one side of the connecting seat 16. Two symmetrically distributed rotating rods 18 are rotatably connected to the surface of the connecting seat 16, and the side surfaces of the rotating rods 18 are in contact with the bottom surface of the mounting seat 17. A plurality of symmetrically distributed supporting rods 6 are evenly fixed to one side of the lower support 1, and the two rotating rods 18 abut against the supporting rods 6 located in the same horizontal plane. Springs 23 are fixed on both sides of the mounting seat 17, and the bottom ends of the two springs 23 are fixed to the sides of the rotating rods 18 respectively, and a clamping piece is provided on the top surface of the mounting seat 17.

[0025] Further as Figure 1 and Figure 3 As shown, it is worth explaining in detail that the clamping parts include a plurality of limit blocks 8 evenly fixed on the surface of the lower pillar 1 and symmetrically distributed, and the top surface of the mounting seat 17 is provided with two rectangular grooves, and the inner walls of the two rectangular grooves are fixed with fixing rods 20, and the outer surfaces of the two fixing rods 20 are slidably connected with sliding rods 22, and the top ends of the two sliding rods 22 are fixed with clamping plates 21, and the two ends of the clamping plates 21 are provided with clamping grooves, and the clamping grooves of the clamping plates 21 are clamped with the limit blocks 8, and the clamping plates 21 are H-shaped.

[0026] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a pull ring is fixed on one side of the clamping plate 21, and the pull ring facilitates the movement of the clamping plate 21; a grip rod 19 is fixed on the surface of the rotating rod 18, and the grip rod 19 facilitates the rotation of the rotating rod 18; a rotating rod is fixed on the surface of the third gear 15, and the rotating rod facilitates the rotation of the third gear 15, wherein the diameter of the third gear 15 is larger than that of the second gear 14 and the first gear 12.

[0027] This scheme has the following working process: usually, during the installation process, the steel structure is connected and fixed by bolts. In actual installation, different usage scenarios require different heights of the steel structure, which makes it more troublesome and laborious to adjust the height of the steel structure. By rotating the rotating rod, the third gear 15 is driven to rotate, and the third gear 15 drives the rotating shaft 13 to rotate through the second gear 14, so that the first gear 12 drives the rack 7 to move up, thereby adjusting the height of the upper pillar 2. The upper pillar 2 will drive the connecting seat 16 to move up during the upward movement, so that one end of the rotating rod 18 is squeezed by the span rod 6. After the rotating rod 18 rotates and passes through the span rod 6, it is reset under the elastic force of the spring 23, so that the rotating rod 18 is placed on the span rod 6, and at the same time, the card plate 21 is pushed inward, so that the card slots at both ends of the card plate 21 are stuck on the limit block 8, thereby limiting and fixing the upper pillar 2, wherein the card plate 21 drives the sliding rod 22 to slide on the fixed rod 20.

[0028] According to the above working process, it can be known that: through the setting of the third gear 15, the second gear 14, the rotating shaft 13 and the first gear 12 and other structures, the function of adjusting the height of the upper pillar 2 is realized, and the upper pillar 2 after movement is limited by the abutment mechanism to maintain the stability of the upper pillar 2 after movement, and then the upper pillar 2 is further limited and fixed by the setting of the clamping part, thereby further improving the stability of the steel structure after adjustment.

[0029] Further as Figure 1 , Figure 4 and Figure 5 As shown, it is worth specifically explaining that the adjustment and limiting mechanism includes four rectangular slide grooves 28 opened on the surface of the rod sleeve 5, and the two sides of the two cross bars 3 are fixed with limited seats 26, and the limited seats 26 are slidably connected with the inner wall of the slide groove 28. Four rectangular fixed plates 27 are fixed on both sides of the rod sleeve 5, and the fixed plates 27 correspond to the slide grooves 28 one by one. The top surface of the fixed plate 27 is evenly opened with a plurality of limiting holes 24, and the limiting holes 24 of the fixed plate 27 correspond to the limiting seats 26 and are plugged with plug rods 25;

[0030] It is worth mentioning that by moving the two lower pillars 1 away from each other, the cross bar 3 moves in the rod sleeve 5 and drives the limit seat 26 to slide in the slide groove 28. The limit seat 26 improves the stability of the cross bar 3 when sliding, thereby adjusting the width of the steel structure and increasing the use scenario of the steel structure. After adjustment, the insertion rod 25 is inserted from the limit hole 24 of the fixed plate 27 and passes through the limit seat 26, thereby limiting the limit seat 26, and then limiting the cross bar 3, maintaining the stability between the cross bar 3 and the rod sleeve 5.

[0031] Further as Figure 1 and Figure 5As shown, it is worth explaining in detail that two limit plates 4 are fixed at the two ends of the rod sleeve 5 corresponding to the cross bar 3, and the two limit plates 4 on one side are in contact with the surface of the cross bar 3, and the limit plates 4 are in contact with the cross bar 3, so as to improve the stability between the rod sleeve 5 and the cross bar 3 when the cross bar 3 slides to the end of the rod sleeve 5; a support rod is fixed between the upper pillar 2 and the cross bar 3, so as to improve the stability between the cross bar 3 and the upper pillar 2; a bottom plate 10 is fixed to the bottom surface of the two lower pillars 1, and the surface of the bottom plate 10 is provided with mounting holes for fixing the lower pillars 1.

[0032] In summary, the height adjustment function of the upper support 2 is realized by setting the third gear 15, the second gear 14, the rotating shaft 13 and the first gear 12, and the upper support 2 is limited by the abutment mechanism after movement to maintain the stability of the upper support 2 after movement, and then the upper support 2 is further limited and fixed by the setting of the clamping member, so as to further improve the stability of the steel structure after adjustment, and the two lower supports 1 are moved away from each other, so that the cross bar 3 moves in the rod sleeve 5, and drives the limiting seat 26 to slide in the slide groove 28, and the stability of the cross bar 3 when sliding is improved by the limiting seat 26, so as to adjust the width of the steel structure and increase the use scenario of the steel structure, and after adjustment, the insertion rod 25 is inserted from the limiting hole 24 of the fixing plate 27 and passes through the limiting seat 26, so as to limit the limiting seat 26, and then limit the cross bar 3, so as to maintain the stability between the cross bar 3 and the rod sleeve 5, and the limiting plate 4 is in contact with the cross bar 3, so as to improve the stability between the rod sleeve 5 and the cross bar 3 when the cross bar 3 slides to the end of the rod sleeve 5.

[0033] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A steel structure that is easy to lift, comprising two lower supports (1), characterized in that: The two lower pillars (1) are both slidably sleeved with upper pillars (2), the upper ends of the adjacent sides of the two upper pillars (2) are both fixed with cross bars (3), the outer surfaces of the two cross bars (3) are sleeved with rod sleeves (5), and the surfaces of the rod sleeves (5) are provided with adjustment and limiting mechanisms corresponding to the cross bars (3), the outer surfaces of the two lower pillars (1) are fixed with two fixed blocks (11), the adjacent sides of the two fixed blocks (11) are rotatably connected with a rotating shaft (13), the outer surface of the rotating shaft (13) is fixedly sleeved with a first gear (12), and the two lower pillars A rectangular through hole (9) is provided on one side of the two upper pillars (1) close to each other, a rack (7) is fixed on the outer surface of the two upper pillars (2) corresponding to the rectangular through hole (9), the first gear (12) is meshed with the rack (7) for transmission, a second gear (14) is fixed on the end of the rotating shaft (13), a third gear (15) is rotatably connected to the outer surface of the two lower pillars (1), the third gear (15) is meshed with the second gear (14) for transmission, and abutment mechanisms matching with the lower pillars (1) are provided on the outer surfaces of the two upper pillars (2) corresponding to the rectangular through holes (9).

2. A steel structure that is easy to lift according to claim 1, characterized in that: The abutment mechanism comprises a connecting seat (16) fixed to the outer surface of the upper support (2), a mounting seat (17) being fixed to one side of the connecting seat (16), two symmetrically distributed rotating rods (18) being rotatably connected to the surface of the connecting seat (16), the side surfaces of the rotating rods (18) being in contact with the bottom surface of the mounting seat (17), a plurality of symmetrically distributed supporting rods (6) being evenly fixed to one side of the lower support (1), the two rotating rods (18) being in contact with the supporting rods (6) located in the same horizontal plane, springs (23) being fixed to both sides of the mounting seat (17), the bottom ends of the two springs (23) being fixed to the side surfaces of the rotating rods (18) respectively, and a clamping piece being provided on the top surface of the mounting seat (17).

3. A steel structure that is easy to lift according to claim 2, characterized in that: The clamping member comprises a plurality of limit blocks (8) uniformly fixed on the surface of the lower support (1) and symmetrically distributed, the top surface of the mounting seat (17) is provided with two rectangular grooves, the inner walls of the two rectangular grooves are fixed with fixing rods (20), the outer surfaces of the two fixing rods (20) are slidably connected with sliding rods (22), the top ends of the two sliding rods (22) are fixed with clamping plates (21), the two ends of the clamping plates (21) are provided with clamping grooves, and the clamping grooves of the clamping plates (21) are clamped with the limit blocks (8).

4. A steel structure that is easy to lift according to claim 3, characterized in that: A pull ring is fixed on one side of the clamping plate (21), a gripping rod (19) is fixed on the surface of the rotating rod (18), and a rotating rod is fixed on the surface of the third gear (15).

5. The steel structure that is easy to lift according to claim 1 is characterized in that: The regulating and limiting mechanism comprises four sliding grooves (28) which are opened on the surface of the rod sleeve (5) and are distributed in a rectangular shape. The two sides of the two cross bars (3) are fixed with limiting seats (26), and the limiting seats (26) are slidably connected with the inner walls of the sliding grooves (28). Four rectangularly distributed fixing plates (27) are fixed on both sides of the rod sleeve (5), and the fixing plates (27) correspond to the sliding grooves (28) one by one. The top surface of the fixing plate (27) is evenly provided with a plurality of limiting holes (24), and the limiting holes (24) of the fixing plate (27) are connected with plug rods (25) corresponding to the limiting seats (26).

6. The steel structure that is easy to lift according to claim 5, characterized in that: Two limiting plates (4) are fixed at the two ends of the rod sleeve (5) corresponding to the cross bar (3), and the two limiting plates (4) located on one side are in contact with the surface of the cross bar (3).

7. The steel structure that is easy to lift according to claim 1 is characterized in that: A support rod is fixed between the upper support (2) and the crossbar (3), and a bottom plate (10) is fixed to the bottom surfaces of the two lower support pillars (1).

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