Double-channel steel joist

Abstract

The utility model relates to the technical field of building structures, and discloses a double-channel steel joist which comprises a vertical rod, a first bracket, a steel joist body, a second bracket and a bracket assembly, the first bracket is arranged on the vertical rod, and a first positioning pin assembled on the outer side of the first bracket is fixedly connected with the vertical rod; the steel joists are arranged on the first brackets, a connecting cylinder is arranged between the two steel joists, the two ends of a spring arranged on the connecting cylinder in a sleeving mode abut against arranged pressing blocks respectively, and locking nuts are arranged at the two ends, extending out of the steel joists, of the connecting cylinder. The multiple second brackets are arranged in an empty groove formed by the two steel joists, and second positioning pins assembled on the outer sides of the second limiting tables are fixedly connected with the steel joists; the bracket assembly is assembled on the second bracket and used for supporting a main keel. The stability of the steel joist after installation is improved, meanwhile, the position of the bracket is convenient to adjust and install, the construction efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a double-groove steel joist. Background Art

[0002] Double-slot steel joists are an important component of supporting scaffolding. They are designed to make up for the shortcomings of non-modular frames and ensure the integrity and continuity of the support frame. They are widely used in the construction of industrial and civil buildings such as logistics plants, subway depots, and station buildings. However, existing steel joists are prone to loosening after installation, and the process of adjusting the installation position of the bracket is cumbersome, which reduces construction efficiency and increases labor intensity and cost expenditure. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a double-slot steel joist to improve the stability of the steel joist after installation, while facilitating the adjustment and installation of the support position, improving construction efficiency and reducing labor intensity.

[0004] The present application provides a double-slot steel joist, comprising a vertical post, a first bracket, a steel joist, a second bracket, and a bracket assembly, wherein the first bracket is provided on the vertical post and can move along the length direction of the vertical post, and a first positioning pin assembled on the outer side of the first bracket is fixedly connected to the vertical post to fix the position of the first bracket on the vertical post;

[0005] The two ends of the steel joist are respectively placed on the first limit platforms provided on the left and right sides of the first brackets, and a connecting tube is provided between the two steel joists. The two ends of the spring sleeved on the connecting tube are respectively against the provided pressure blocks. The two ends of the connecting tube extending out of the steel joist are provided with locking nuts, and as the locking nuts are tightened, the two steel joists are tightened, so that the pressure blocks are pressed against the inner wall of the steel joist, and the steel joist is pressed against the outer wall of the first bracket;

[0006] Multiple second brackets are placed in the empty grooves formed by the two steel joists, and the second limit platform provided thereon is in contact with the upper end surface of the steel joist and can move along the length direction of the steel joist. The second positioning pins installed on the outer side of the second limit platform are fixedly connected to the steel joist to fix the position of the second bracket on the steel joist; the bracket assembly is assembled on the second bracket to support the main keel.

[0007] In some embodiments, the bracket assembly includes a tray and a moving rod, the tray is fixed to the upper end of the moving rod, and the lower end of the moving rod is raised out of the second bracket, wherein the outer wall of the moving rod is provided with a threaded section along its length direction with the lower end as the base point, and is threadedly assembled with the second bracket through the threaded section.

[0008] In some embodiments, baffles are provided extending upward from the left and right sides of the upper end surface of the tray.

[0009] In some embodiments, a third positioning pin is provided on the outer side of the second bracket.

[0010] In some embodiments, first positioning holes are equidistantly distributed along the length direction of the vertical pole, and the first positioning pin passes through the portion of the first bracket and is inserted into the first positioning hole.

[0011] In some embodiments, second positioning holes are evenly spaced along the length direction of the steel support beam, and the second positioning pin passes through the second bracket and is inserted into the second positioning hole.

[0012] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0013] The two ends of the steel joist of the utility model are respectively placed on the first brackets on the left and right sides, and the two steel joists are connected by a connecting tube. As the locking nut is tightened, the steel joist will squeeze the pressure block, and the pressure block will squeeze the spring, so that the pressure block is acted on the steel joist by the spring to tighten and fix the two steel joists. At the same time, the two ends of the steel joist are pressed against the outer wall of the first bracket, thereby improving the stability of the steel joist after installation.

[0014] Furthermore, the first bracket is first moved on the vertical pole according to the required erection height, and then the position of the first bracket on the vertical pole is fixed by the first positioning pin. Then, the second bracket is moved on the steel support beam according to the required assembly position of the bracket assembly, and then the position of the second bracket on the steel support beam is fixed by the second positioning pin. The pin positioning method facilitates the adjustment and installation of the positions of the first bracket and the second bracket, thereby improving construction efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a double-groove steel joist of the utility model;

[0016] Figure 2 The utility model is a structural schematic diagram of a double-groove steel support beam.

[0017] Figure Number:

[0018] 1-vertical pole; 2-first bracket; 3-steel support beam; 4-second bracket; 5-first positioning pin; 6-first positioning hole; 7-first limiting platform; 8-connecting tube; 9-spring; 10-pressure block; 11-locking nut; 12-second limiting platform; 13-second positioning pin; 14-second positioning hole; 15-tray; 16-moving rod; 17-baffle; 18-third positioning pin. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0020] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and testing methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0022] like Figure 1-Figure 2As shown, the utility model discloses a double channel steel joist, including vertical pole 1, first support seat 2, steel joist 3, second support seat 4 and bracket assembly, first support seat 2 is located vertical pole 1, and can move along the length direction of vertical pole 1, first support seat 2 outside is equipped with first positioning pin 5, and first positioning hole 6 is arranged along the length direction of vertical pole 1 equidistantly, first positioning pin 5 is inserted into first positioning hole 6 from the part of first support seat 2, and the both ends of steel joist 3 are respectively placed on the first limiting table 7 of left and right sides first support seat 2, and the connecting cylinder 8 is arranged between two steel joists 3, and the both ends of spring 9 of connecting cylinder 8 are respectively abutted with the pressure block 10, and the both ends of connecting cylinder 8 that projects steel joist 3 are equipped with lock nut 11.

[0023] The both ends of steel joist 3 of the embodiment are respectively placed on the first support seat 2 of left and right sides, and two steel joists 3 are connected by connecting cylinder 8, along with the tightening of lock nut 11, steel joist 3 will extrude pressure block 10, and pressure block 10 extrudes spring 9 again, so that pressure block 10 is acted on steel joist 3 by spring 9 again, makes pressure block 10 and the inner wall of steel joist 3 abut tightly to pull two steel joists 3 tightly fixed, and the both ends of steel joist 3 and the outer wall of first support seat 2 abut tightly, thereby improving the stability of steel joist 3 after installation.

[0024] Multiple second support seats 4 are placed in the empty slot formed by two steel joists 3, and the second limiting table 12 arranged therein is attached to the upper end surface of steel joist 3 and can move along the length direction of steel joist 3, and the second limiting table 12 is equipped with a second positioning pin 13 on the outside, and a second positioning hole 14 is arranged along the length direction of steel joist 3 equidistantly, and the second positioning pin 13 is inserted into the second positioning hole 14 from the part of the second support seat 4.

[0025] The bracket assembly is assembled on the second support seat 4 to support the main ridge, wherein the bracket assembly comprises a tray 15 and a moving rod 16, the tray 15 is fixedly arranged on the upper end of the moving rod 16, the left and right sides of the upper end surface of the tray 15 extend upward to form a baffle 17, the two baffles 17 are respectively attached to the side surface of the main ridge to clamp the main ridge, and the lower end of the moving rod 16 is arranged above the second support seat 4, wherein a threaded segment is arranged on the outer wall of the moving rod 16 with the lower end as the base point along the length direction, and the second support seat 4 is connected through the threaded segment, and a third positioning pin 18 is arranged on the outside of the second support seat 4.

[0026] When assembling and using, first move the first bracket 2 on the vertical pole 1 according to the required vertical height. When the first bracket 2 is moved into place, use a hammer to knock the first positioning pin 5 into the first positioning hole 6 of the vertical pole 1 to complete the installation of the first bracket 2; then, the two ends of the two steel joists 3 are respectively erected on the two ends of the first bracket 2, and the spring 9 and the pressure block 10 are assembled to the connecting tube 8. Then, the connecting tube 8 is assembled between the two steel joists 3, and then the locking nuts 11 are assembled on the two ends of the steel joists 3 extending out of the connecting tube 8. Then, the locking nuts 11 are tightened so that the pressure block 10 is pressed against the inner wall of the steel joist 3 to tighten and fix the two steel joists 3. At the same time, the two ends of the steel joist 3 are pressed against the outer wall of the first bracket 2; then the second bracket 4 is placed Place it in the empty groove formed by the two steel joists 3, and then move the second bracket 4 on the steel joist 3 according to the required assembly position of the bracket assembly. When the second bracket 4 is moved into place, use a hammer to knock the second positioning pin 13 into the second positioning hole 14 of the steel joist 3 to complete the installation of the second bracket 4; finally, rotate the moving rod 16 according to the height at which the pallet 15 needs to be used, so that the moving rod 16 drives the pallet 15 to move up and down on the second bracket 4. When the pallet 15 is lifted to the use height, use a hammer to knock the third positioning pin 18 so that the head of the third positioning pin 18 is clamped with the threaded section of the moving rod 16, thereby fixing the position of the moving rod 16 and the pallet 15, and ensuring that the pallet 15 supports the main keel to complete the overall installation.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A double-groove steel joist, characterized in that: The bracket assembly comprises a vertical pole, a first bracket, a steel joist, a second bracket and a bracket assembly, wherein the first bracket is arranged on the vertical pole and can move along the length direction of the vertical pole, and a first positioning pin assembled on the outer side of the first bracket is fixedly connected to the vertical pole to fix the position of the first bracket on the vertical pole; The two ends of the steel joist are respectively placed on the first limit platforms provided on the left and right sides of the first brackets, and a connecting tube is provided between the two steel joists. The two ends of the spring sleeved on the connecting tube are respectively against the provided pressure blocks. The two ends of the connecting tube extending out of the steel joist are provided with locking nuts, and as the locking nuts are tightened, the two steel joists are tightened, so that the pressure blocks are pressed against the inner wall of the steel joist, and the steel joist is pressed against the outer wall of the first bracket; A plurality of the second brackets are placed in the empty grooves formed by the two steel joists, and the second limiting platforms provided thereon are in contact with the upper end surfaces of the steel joists and can move along the length direction of the steel joists. The second positioning pins assembled on the outer sides of the second limiting platforms are fixedly connected to the steel joists to fix the positions of the second brackets on the steel joists. The bracket assembly is assembled on the second bracket to support the main keel.

2. The double-channel steel joist according to claim 1, characterized in that: The bracket assembly includes a tray and a moving rod, the tray is fixed to the upper end of the moving rod, and the lower end of the moving rod is raised out of the second bracket, wherein the outer wall of the moving rod is provided with a threaded section along its length direction with the lower end as the base point, and is threadedly assembled with the second bracket through the threaded section.

3. The double-channel steel joist according to claim 2, characterized in that: Baffles are provided on the left and right sides of the upper end surface of the tray extending upward.

4. The double-channel steel joist according to claim 2, characterized in that: A third positioning pin is provided on the outer side of the second bracket.

5. The double-channel steel joist according to claim 1, characterized in that: First positioning holes are evenly distributed along the length direction of the vertical rod, and the first positioning pin passes through the portion of the first bracket and is inserted into the first positioning hole.

6. The double-channel steel joist according to claim 1, characterized in that: Second positioning holes are evenly distributed along the length direction of the steel support beam, and the second positioning pin passes through the second bracket and is inserted into the second positioning hole.

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