Special-shaped I-shaped steel joist

Abstract

The utility model discloses a special-shaped I-shaped steel joist, which belongs to the technical field of steel joists and comprises a joist body, the joist body is I-shaped, casting heads are symmetrically and fixedly mounted at two ends of the joist body, transverse notches are formed in one ends, which are relatively far away from each other, of the two casting heads, bolts are mounted on the casting heads, and the joist body is fixedly mounted on the joist body. The upper side and the lower side of the casting head are provided with long-strip-shaped through holes matched with the plug pins, a reinforcing assembly is installed between the two sides of the inner wall of the joist body, the joist body is arranged in an I shape, the overall stability is improved, the reinforcing bolts can be rapidly installed and disassembled according to the weight of a carried object, and therefore the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel joists, and more specifically, to a special-shaped I-beam joist. Background Art

[0002] At present, the existing square steel pipe joists have insufficient strength, resulting in the inability to maximize the advantages of the disk buckle support system. At the same time, when the cross-section of the square steel pipe beam bracket is too large, the strength is insufficient, resulting in the need to encrypt the layout spacing of the disk buckle. At this time, the bearing capacity of the vertical pole has not reached the maximum utilization rate, and it is impossible to improve and reinforce according to the weight of the load. Summary of the Utility Model

[0003] To make up for the above deficiencies, the utility model provides a special-shaped I-beam joist, aiming to improve the problems of material waste and the inability to improve and reinforce according to the weight of the load.

[0004] The utility model is realized as follows: a special-shaped I-beam joist, including a joist body. The joist body is arranged in an I-shape. Cast heads are symmetrically and fixedly installed at both ends of the joist body. Transverse slots are arranged at the relatively far ends of the two cast heads. Plug pins are installed on the cast heads. Longitudinal through holes matching the plug pins are arranged on the upper and lower sides of the cast heads. A reinforcement component is installed between the two inner walls of the joist body.

[0005] In a preferred technical solution of the utility model, the end of the transverse slot is provided with an inverted chamfer.

[0006] In a preferred technical solution of the utility model, the size of the through hole on the upper side is larger than that of the through hole on the lower side.

[0007] In a preferred technical solution of the utility model, the joist body is composed of an upper cross plate, vertical plates and a lower cross plate and is integrally formed. The width of the upper cross plate is greater than that of the lower cross plate. The four corners of the inner wall of the joist body are arranged in an arc shape, and the four corners of the outer wall of the joist body are also arranged in an arc shape.

[0008] In a preferred technical solution of the utility model, the reinforcement component includes reinforcement bolts. A plurality of threaded holes matching the reinforcement bolts are arranged on both sides of the lower cross plate. A threaded groove matching the reinforcement bolts is arranged at the bottom end of the upper cross plate. The plurality of threaded holes and the plurality of threaded grooves are in one-to-one correspondence and symmetrically arranged.

[0009] In a preferred technical solution of the utility model, a rectangular sliding hole is arranged in the lower cross plate. A support plate is slidably installed on the inner wall of the sliding hole. After the reinforcement bolt is threaded through the threaded hole and threaded into the threaded groove, the bottom end of the reinforcement bolt is in the same plane as the top end of the inner wall of the sliding hole.

[0010] In a preferred technical solution of the present utility model, a circular groove matching the head of the reinforcing bolt is provided at one end of the threaded hole relative to the upper cross plate, and the head of the reinforcing bolt is slidably connected to the inner wall of the circular groove.

[0011] In a preferred technical solution of the present utility model, round holes matching the heads of the reinforcing bolts are provided at the bottom end of the lower cross plate. A plurality of the round holes communicate with the sliding holes and correspond to the threaded holes one by one. Positioning bolts are symmetrically and threadedly installed at the bottom end of the lower cross plate. The positioning bolts threadedly penetrate through the sliding holes, and positioning screw holes matching the positioning bolts are provided on the support plate.

[0012] The beneficial effects of the present utility model are as follows: An I-shaped steel joist with a special shape obtained by the above design in the present utility model. When it is necessary to improve the support performance, only the reinforcing bolts need to be added according to the requirements. The reinforcing bolts are threaded through the threaded holes and inserted into the threaded grooves at one end, so as to improve the support performance of the upper cross plate and the lower cross plate. After the reinforcing bolts are installed, the support plate is inserted into the sliding holes, and then the support plate is fixed by the positioning bolts. The I-shaped setting of the joist body improves the overall stability, and the reinforcing bolts can be quickly installed and disassembled according to the weight of the load, thereby improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a schematic structural diagram of an I-shaped steel joist with a special shape provided by an embodiment of the present utility model;

[0015] Figure 2 is a partial structural diagram of an I-shaped steel joist with a special shape provided by an embodiment of the present utility model;

[0016] Figure 3 is a cross-sectional view of the joist body provided by an embodiment of the present utility model.

[0017] In the figure: 110 - joist body; 120 - casting head; 121 - pin; 130 - reinforcing bolt; 131 - threaded hole; 132 - threaded groove; 133 - sliding hole; 134 - support plate; 135 - positioning bolt; 136 - round hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0019] Please refer to Figure 1 , the present utility model provides a technical solution: a special-shaped I-beam joist, including a joist body 110, the joist body 110 is arranged in an I-shape, both ends of the joist body 110 are symmetrically and fixedly installed with casting heads 120, a transverse notch is arranged at one end of the two casting heads 120 facing away from each other, a bolt 121 is installed on the casting head 120, and long strip-shaped through holes matching the bolt 121 are arranged on the upper and lower sides of the casting head 120. A reinforcement component is installed between the inner walls on both sides of the joist body 110.

[0020] In some specific implementation schemes, the end of the transverse notch is provided with an inclined chamfer to facilitate the installation of the casting head 120. The size of the through hole on the upper side is larger than that on the lower side to facilitate the limitation of the bolt 121 and prevent the bolt 121 from slipping out of the through hole.

[0021] In some specific implementation schemes, the joist body 110 is composed of an upper cross plate, vertical plates, and a lower cross plate and is integrally formed. The width of the upper cross plate is larger than that of the lower cross plate. The four corners of the inner wall of the joist body 110 are arranged in an arc shape, and the four corners of the outer wall of the joist body 110 are also arranged in an arc shape.

[0022] Please refer to Figure 2 and Figure 3 , the reinforcement component includes a reinforcement bolt 130. A plurality of threaded holes 131 matching the reinforcement bolt 130 are arranged on both sides of the lower cross plate. A threaded groove 132 matching the reinforcement bolt 130 is arranged at the bottom end of the upper cross plate. The plurality of threaded holes 131 and the plurality of threaded grooves 132 are in one-to-one correspondence and symmetrically arranged. A rectangular sliding hole 133 is arranged inside the lower cross plate. A support plate 134 is slidably installed on the inner wall of the sliding hole 133. After the reinforcement bolt 130 is threaded through the threaded hole 131 and threaded into the threaded groove 132, the bottom end of the reinforcement bolt 130 and the top end of the inner wall of the sliding hole 133 are on the same plane.

[0023] In some specific implementation schemes, a circular groove matching the head of the reinforcement bolt 130 is arranged at one end of the threaded hole 131 facing away from the upper cross plate. The head of the reinforcement bolt 130 is slidably connected to the inner wall of the circular groove, which facilitates the support and fixation of the reinforcement bolt 130 and the sliding hole 133 by the support plate 134, thereby improving the overall stability.

[0024] In some specific embodiments, round holes 136 matching the heads of the reinforcement bolts 130 are provided at the bottom end of the lower cross plate. A plurality of round holes 136 communicate with the sliding holes 133 and correspond to the threaded holes 131 one by one. Positioning bolts 135 are symmetrically and threadedly installed at the bottom end of the lower cross plate. The positioning bolts 135 threadedly penetrate through the sliding holes 133. Positioning threaded holes matching the positioning bolts 135 are provided on the support plate 134, facilitating the reinforcement bolts 130 to pass through the round holes 136 for reinforcement installation.

[0025] Working principle: During use, the casting head 120 is sleeved on both sides of the support through the transverse groove and fixed by the pin 121. When it is necessary to improve the support at this time, only add the reinforcement bolts 130 according to the requirements. Thread the reinforcement bolts 130 through the threaded holes 131 until one end is inserted into the threaded groove 132, thereby improving the support of the upper cross plate and the lower cross plate. After installing the reinforcement bolts 130, insert the support plate 134 into the sliding holes 133, and then fix the support plate 134 through the positioning bolts 135.

[0026] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A special-shaped I-beam joist, characterized in that, It includes a joist body which is arranged in an I-shape. Cast heads are symmetrically and fixedly installed at both ends of the joist body. Transverse notches are arranged at the relatively far ends of the two cast heads. Bolts are installed on the cast heads, and elongated through holes matching the bolts are arranged on the upper and lower sides of the cast heads. A reinforcement component is installed between the two inner walls of the joist body.

2. The special-shaped I-beam joist according to claim 1, characterized in that, The end of the transverse notch is provided with an inverted chamfer.

3. The special-shaped I-beam joist according to claim 1, characterized in that, The size of the through hole on the upper side is larger than the size of the through hole on the lower side.

4. The special-shaped I-beam joist according to claim 1, characterized in that, The joist body is composed of an upper cross plate, vertical plates and a lower cross plate and is integrally formed. The width of the upper cross plate is larger than the width of the lower cross plate.

5. The special-shaped I-beam joist according to claim 4, wherein, The reinforcement component includes reinforcement bolts. A plurality of threaded holes matching the reinforcement bolts are arranged on both sides of the lower cross plate, and a threaded groove matching the reinforcement bolts is arranged at the bottom end of the upper cross plate.

6. The special-shaped I-beam joist according to claim 5, wherein, A rectangular sliding hole is arranged in the lower cross plate. A support plate is slidably installed on the inner wall of the sliding hole. After the reinforcement bolt is threaded through the threaded hole and threaded into the threaded groove, the bottom end of the reinforcement bolt is in the same plane as the top end of the inner wall of the sliding hole.

7. The special-shaped I-beam joist according to claim 6, characterized in that, A circular groove matching the head of the reinforcement bolt is arranged at the relatively far end of the threaded hole relative to the upper cross plate, and the head of the reinforcement bolt is slidably connected to the inner wall of the circular groove.

8. The special-shaped I-beam joist according to claim 7, characterized in that, Round holes matching the heads of the reinforcement bolts are arranged at the bottom end of the lower cross plate. The plurality of round holes communicate with the sliding hole and correspond to the threaded holes one by one. Positioning bolts are symmetrically and threadedly installed at the bottom end of the lower cross plate. The positioning bolts are threaded through the sliding hole, and positioning threaded holes matching the positioning bolts are arranged on the support plate.

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