CN217379224U

CN217379224U - Telescopic steel structure truss

Info

Publication number: CN217379224U
Application number: CN202221146554.9U
Authority: CN
Inventors: 范康; 韩庆; 潘国昌; 王偲媛
Original assignee: Xi'an Engineering Investigation & Design Institute Of China National Nonferrous Metals Industry Co ltd
Current assignee: Xi'an Engineering Investigation & Design Institute Of China National Nonferrous Metals Industry Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-06
Anticipated expiration: 2032-05-13

Abstract

The utility model provides a telescopic steel structure truss, which comprises an upper frame and a bottom frame, wherein the upper frame and the bottom frame are fixedly connected through fixing piles; telescopic grooves are formed in the top frame and the bottom frame, two ends of each telescopic groove of the top frame are respectively connected with a top rod in a sliding mode, and two ends of each telescopic groove of the bottom frame are respectively connected with a bottom rod in a sliding mode; the top rods and the bottom rods are connected through bidirectional threaded rods. The problem of current steel construction truss be fixed type structure usually, use the flexibility relatively poor, can't prolong or shorten to support intensity general is solved.

Description

Telescopic steel structure truss

Technical Field

The utility model belongs to the technical field of the steel construction, a scalable steel construction truss is related to.

Background

The steel structure truss is used as a good stress structure system and is widely applied to various aspects of engineering construction. Compared with a solid web beam, the steel truss replaces an integral web plate with sparse web members, and the rod members mainly bear axial force, so that steel can be saved, and the self weight of the structure can be reduced. This makes the steel truss particularly suitable for structures with large spans or heights. In addition, the steel truss can be conveniently manufactured into various required shapes according to different use requirements. Furthermore, because the amount of steel used for the web members is reduced compared to that used for the web of a solid web girder, the steel truss can be formed into a shape having a greater height, thereby having greater rigidity. However, the steel truss has more rods and nodes, a more complex structure and a more labor-consuming manufacturing process.

The steel truss is composed of chord members, web members and nodes, and the truss is various in forms according to stress conditions. The truss full length is used as a horizontal stress member of a large-span structure and is also used for providing lateral support for the horizontal member. At present, the trusses are mostly fixed trusses, cannot be reused due to one-time manufacture, are poor in use flexibility, cannot adjust the length of the trusses according to field conditions, and are high in economic cost.

Disclosure of Invention

In order to achieve the purpose, the utility model provides a scalable steel structure truss has solved current steel structure truss and has used the flexibility relatively poor for fixed type structure usually, can't prolong or shorten to support the general problem of intensity.

In order to solve the technical problem, the utility model adopts the technical scheme that the telescopic steel structure truss comprises an upper frame and a bottom frame, wherein the upper frame and the bottom frame are fixedly connected through a fixing pile; telescopic grooves are formed in the top frame and the bottom frame, two ends of each telescopic groove of the top frame are respectively connected with a top rod in a sliding mode, and two ends of each telescopic groove of the bottom frame are respectively connected with a bottom rod in a sliding mode; the top rods and the bottom rods are in threaded connection through a bidirectional threaded rod; a driving groove is formed in the fixing pile, a driven shaft is rotatably connected to the inside of the driving groove, and two ends of the driven shaft are connected to the inside of the telescopic groove; the two ends of the driven shaft are provided with second driving teeth, the periphery of the bidirectional threaded rod is fixedly provided with second driven teeth, and the second driving teeth are meshed with the second driven teeth; a rotating rod is rotatably connected to one side wall of the driving groove, a first driving tooth is fixedly mounted at one end of the rotating rod, a first driven tooth is fixedly mounted on the peripheral side of the driven shaft, and the first driving tooth is meshed with the first driven tooth.

Furthermore, a rotary table is fixedly mounted at the other end of the rotary rod, and a rotary handle is rotatably connected to the outer side of the rotary table.

Furthermore, the limiting grooves are formed in the upper side and the lower side of the telescopic groove, the upper surface and the lower surface of the ejector rod and the bottom rod are fixedly connected with limiting blocks, and the limiting blocks are in sliding fit with the limiting grooves.

Furthermore, a reinforcing rod and a supporting column are fixedly connected between the top rod and the bottom rod, wherein two ends of the supporting column are respectively perpendicular to the top rod and the bottom rod, and the reinforcing rod is obliquely fixed between two adjacent supporting columns.

Furthermore, the upper surface of the top rod and the bottom surface of the bottom rod are fixedly connected with backing plates; the upper surface of the backing plate on the upper surface of the ejector rod and the upper surface of the top frame are positioned on the same horizontal plane, and the bottom surface of the backing plate on the bottom surface of the bottom rod and the bottom surface of the bottom frame are positioned on the same horizontal plane.

The utility model has the advantages that:

the utility model has the advantages that the top rod and the bottom rod can freely extend and retract by arranging the telescopic groove, the top rod and the bottom rod, so that the structure has an adjustable function; through the arrangement of the fixed piles, the rotating rods, the multiple groups of driving teeth, the multiple groups of driven teeth and the bidirectional threaded rods, the two groups of ejector rods and the bottom rod can be stretched simultaneously, the length adjustment of the structure is realized, the use flexibility of the structure is improved, and the adjustment mode is simple and rapid; the limiting block and the limiting groove are arranged, so that the limiting groove improves the stability of the top rod, the bottom rod and the telescopic mechanism; through setting up the backing plate, keep ejector pin upper surface and roof-rack upper surface, sill bar bottom surface and chassis bottom surface to be in same horizontal plane, guarantee support stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is the structural schematic diagram of the steel structure truss of the embodiment of the utility model.

Fig. 2 is a top view of an embodiment of the invention.

Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.

Fig. 4 is an enlarged view of a portion B of fig. 3.

In the drawing, 1, a top frame, 2, a bottom frame, 3, a fixed pile, 301, a driving groove, 4, a telescopic groove, 5, a bidirectional threaded rod, 6, a top rod, 7, a bottom rod, 8, a backing plate, 9, a driven shaft, 10, a second driving tooth, 11, a second driven tooth, 14, a rotating rod, 15, a first driving tooth, 16, a first driven tooth, 17, a rotating disc, 18, a rotating handle, 19, a limiting block, 20, a limiting groove, 21, a supporting column and 22, a reinforcing rod are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a telescopic steel structure truss, which comprises a top frame 1 and a bottom frame 2, wherein the top frame 1 and the bottom frame 2 are fixedly connected through a fixing pile 3; the top frame 1 and the bottom frame 2 are internally provided with transverse telescopic grooves 4, two ends inside the telescopic grooves 4 of the top frame 1 are respectively connected with a top rod 6 in a sliding manner, and two ends of the telescopic grooves 4 of the bottom frame 2 are respectively connected with a bottom rod 7 in a sliding manner; the top rods 6 and the bottom rods 7 are in threaded connection through the bidirectional threaded rod 5; the top rod 6 and the bottom rod 7 can freely stretch and retract by arranging the telescopic groove 4, so that the steel structure truss has a telescopic adjusting function;

further, a driving groove 301 is formed in the fixing pile 3, a driven shaft 9 is rotatably connected to the inside of the driving groove 301, and two ends of the driven shaft 9 are connected to the inside of the telescopic groove 4; two ends of the driven shaft 9 are respectively provided with a second driving tooth 10, the peripheral side of the bidirectional threaded rod 5 is fixedly provided with a second driven tooth 11, and the second driving tooth 10 is meshed with the second driven tooth 11; a rotating rod 14 is rotatably connected to one side wall of the driving groove 301, a first driving tooth 15 is fixedly mounted at one end of the rotating rod 14, a first driven tooth 16 is fixedly mounted on the peripheral side of the driven shaft 9, and the first driving tooth 15 is meshed with the first driven tooth 16. The rotating rod 14 rotates, the first driving tooth 15 is matched with the first driven tooth 16 to enable the driven shaft 9 to rotate, the second driving tooth 10 drives the second driven tooth 11 to rotate, the two groups of bidirectional threaded rods 5 are enabled to rotate simultaneously, the two groups of bidirectional threaded rods 5 are matched with the ejector rods 6 and the bottom rod 7 respectively in a threaded mode, the two groups of ejector rods 6 and the bottom rod 7 can stretch out and draw back simultaneously, and the length adjustment of the steel structure truss is achieved.

Furthermore, a rotary plate 17 is fixedly arranged at the other end of the rotary rod 14, and a rotary handle 18 is rotatably connected to the outer side of the rotary plate 17. The rotating handle 18 drives the rotating disc 17 to rotate, and further drives the rotating rod 14 to rotate.

Furthermore, the upper side and the lower side of the telescopic groove 4 are both provided with a limiting groove 20, the upper surface and the lower surface of the top rod 6 and the bottom rod 7 are both fixedly connected with a limiting block 19, and the limiting block 19 is in sliding fit with the limiting groove 20; the limiting block 19 and the limiting groove 20 improve the telescopic stability of the top rod 6 and the bottom rod 7.

Further, a plurality of reinforcing rods 22 and supporting columns 21 are fixedly connected between the top rod 6 and the bottom rod 7, wherein two ends of each supporting column 21 are perpendicular to the top rod 6 and the bottom rod 7 respectively, the reinforcing rods 22 are obliquely fixed between the two adjacent supporting columns 21, and the reinforcing rods 22 and the supporting columns 21 enable the supporting performance and the fixing performance between the top rod 6 and the bottom rod 7 to be better.

Furthermore, the upper surface of the top rod 6 and the bottom surface of the bottom rod 7 are fixedly connected with backing plates 8; the upper surface of the backing plate 8 on the upper surface of the ejector rod 6 and the upper surface of the top frame 1 are located on the same horizontal plane, and the bottom surface of the backing plate 8 on the bottom surface of the bottom rod 7 and the bottom surface of the bottom frame 2 are located on the same horizontal plane, so that the supporting stability of the whole truss is guaranteed.

The bidirectional threaded rod 5 in the present embodiment refers to a screw rod having threads with different rotation directions at both ends.

The utility model also provides a use method of scalable steel construction truss:

the rotary handle 18 is rotated, the rotary handle 18 drives the rotary disc 17 to rotate, the rotary rod 14 is rotated, the first driving tooth 15 is matched with the first driven tooth 16 to rotate the driven shaft 9, the second driving tooth 10 at two ends of the driven shaft 9 drives the second driven tooth 11 to rotate, two groups of bidirectional threaded rods 5 are rotated simultaneously, the two groups of bidirectional threaded rods 5 are matched with the ejector rods 6 and the bottom rod 7 in a threaded manner, the two groups of ejector rods 6 and the bottom rod 7 can stretch simultaneously, and the length adjustment of the structure is realized.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The telescopic steel structure truss is characterized by comprising a top frame (1) and an underframe (2), wherein the top frame (1) and the underframe (2) are fixedly connected through a fixing pile (3); telescopic grooves (4) are formed in the top frame (1) and the bottom frame (2), two ends of each telescopic groove (4) of the top frame (1) are respectively connected with a top rod (6) in a sliding mode, and two ends of each telescopic groove (4) of the bottom frame (2) are respectively connected with a bottom rod (7) in a sliding mode; the top rods (6) and the bottom rods (7) are in threaded connection through a bidirectional threaded rod (5); a driving groove (301) is formed in the fixed pile (3), a driven shaft (9) is rotatably connected in the driving groove (301), and two ends of the driven shaft (9) are connected to the interior of the telescopic groove (4); second driving teeth (10) are mounted at two ends of the driven shaft (9), second driven teeth (11) are fixedly mounted on the peripheral side of the bidirectional threaded rod (5), and the second driving teeth (10) are meshed with the second driven teeth (11); a rotating rod (14) is rotatably connected to one side wall of the driving groove (301), a first driving tooth (15) is fixedly mounted at one end of the rotating rod (14), a first driven tooth (16) is fixedly mounted on the peripheral side of the driven shaft (9), and the first driving tooth (15) is meshed with the first driven tooth (16).

2. The telescopic steel structure truss is characterized in that the other end of the rotating rod (14) is fixedly provided with a rotating disc (17), and the outer side of the rotating disc (17) is rotatably connected with a rotating handle (18).

3. The telescopic steel structure truss as claimed in claim 1, wherein the upper and lower sides of the telescopic groove (4) are respectively provided with a limiting groove (20), the upper and lower surfaces of the top rod (6) and the bottom rod (7) are respectively fixedly connected with a limiting block (19), and the limiting blocks (19) are in sliding fit with the limiting grooves (20).

4. The telescopic steel structure truss of claim 1, wherein a reinforcing rod (22) and a supporting column (21) are fixedly connected between the top rod (6) and the bottom rod (7), wherein two ends of the supporting column (21) are respectively perpendicular to the top rod (6) and the bottom rod (7), and the reinforcing rod (22) is obliquely fixed between two adjacent supporting columns (21).

5. The telescopic steel structure truss as claimed in claim 1, wherein the upper surface of the top rods (6) and the bottom surface of the bottom rods (7) are fixedly connected with backing plates (8); the upper surface of the backing plate (8) on the upper surface of the ejector rod (6) and the upper surface of the top frame (1) are positioned on the same horizontal plane, and the bottom surface of the backing plate (8) on the bottom surface of the bottom rod (7) and the bottom surface of the bottom frame (2) are positioned on the same horizontal plane.