Connecting mechanism for joist steel butt joint

Abstract

The utility model discloses a connecting mechanism for joist steel butt joint, which relates to the technical field of joist steel connection and comprises a bottom frame, four corners of the lower end of the bottom frame are fixedly connected with support columns, the middle of the top surface of the bottom frame is longitudinally and fixedly connected with four square frames, and the inner sides of the square frames are provided with fixing components. The bottom face of I-shaped steel is supported through the boss, the two sides of the I-shaped steel are fixed through the two clamping plates on the inner side of the square frame, and then the I-shaped steel is pressed through the pressing plate at the upper end of the inner side of the square frame on the inner side. In this way, when the I-shaped steel is welded, the two I-shaped steel bodies are kept on the same horizontal plane, the axial position centering effect of the two I-shaped steel bodies in the connecting process is improved, and the situation that the two I-shaped steel bodies are fractured due to axial dislocation at the connecting position is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of I-beam connection, in particular to a connection mechanism for butt-jointing I-beams. Background Art

[0002] The earliest I-beam butt connection usually adopts the traditional bolt connection. This connection method is achieved by passing the bolt through the hole of the I-beam and tightening it with a nut. With the development of welding technology, welding connection has gradually become a common way of I-beam butt connection. Welding connection is to melt and fuse the joints of the I-beam together to form a strong connection.

[0003] In the existing I-beam connection structure, generally, before the I-beam is installed, two I-beams to be connected are placed on the installation table for assembly operation. However, the conventional workbench is not provided with a positioning mechanism for connecting the I-beams. In this way, when the two I-beams are connected, the axial positions are prone to mismatch. If the two I-beams are connected and fixed when they are not in the same horizontal plane, the two connected I-beams will also break due to uneven force at the connection. Therefore, it is necessary to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a connection mechanism for butt jointing of I-beams.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a connection mechanism for I-beam butt connection, including a base frame, the four corners of the lower end of the base frame are fixedly connected to support columns, four square frames are longitudinally fixedly connected to the middle of the top surface of the base frame, and a fixing component is provided on the inner side of the square frame.

[0006] Preferably, the fixing assembly includes two clamping plates arranged on the inner side of each square frame, and each square frame is provided with an internal threaded tube cooperating with a bolt in the middle of the front and rear ends. The bolt is threadedly connected to the square frame, and the bottom of the thread is rotatably connected to the outer side of the clamping plate.

[0007] Preferably, the top surfaces of the two inner square frames are provided with guide grooves that cooperate with the guide rods, and the upper ends of the guide grooves provided on the top surfaces of the two inner square frames are fixedly connected with retaining rings, the guide rods move vertically in the guide grooves, and the top surfaces of the guide rods are fixedly connected with retaining sheets, and the bottom surfaces of the guide rods are fixedly connected with pressure plates.

[0008] Preferably, bosses are transversely fixed on both sides of the middle part of the top surface of the base frame, the bosses are arranged between two clamping plates, and a groove is transversely opened in the middle part of the top surface of the boss, and a plurality of equidistant fixed pulleys are transversely arranged in the groove, and the fixed pulleys are rotatably connected to the inner wall of the groove.

[0009] Preferably, a spring is vertically provided between the pressure plate and the inner top surface of the square frame, and the spring moves vertically on the guide rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model supports the bottom surface of the I-beam through the boss, and then fixes the two sides of the I-beam through the two clamping plates on the inner side of the square frame, and then presses the I-beam through the pressure plate at the inner upper end of the inner square frame; in this way, when the I-beams are welded, the two I-beams are kept in the same horizontal plane, which improves the axial position centering effect of the two I-beams when connected, and avoids the situation where the two I-beams are broken due to axial misalignment at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0014] Figure 3 It is a side view half-section structure schematic diagram of the utility model;

[0015] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0016] Serial numbers in the figure: 1, base frame; 2, support column; 3, square frame; 4, bolt; 5, clamping plate; 6, guide rod; 7, baffle; 8, baffle ring; 9, spring; 10, pressure plate; 11, boss; 12, fixed pulley. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example: See Figure 1-4The utility model discloses a connection mechanism for butt joint of I-beams, comprising a base frame 1, through which various components can be connected; the four corners of the lower end of the base frame 1 are fixedly connected with support columns 2, through which the connection mechanism can be supported; four square frames 3 are fixedly connected longitudinally in the middle of the top surface of the base frame 1, through which the fixing components are connected; a fixing component is arranged inside the square frame 3. The fixing component comprises two clamping plates 5 arranged inside each square frame 3, through which the I-beams can be fixed on both sides; the middle of the front and rear ends of each square frame 3 is provided with an internal threaded tube matched with a bolt 4, through which the distance between the clamping plates 5 can be adjusted; the bolt 4 is threadedly connected to the square frame 3, and the bottom of the thread 4 is rotatably connected to the outer side of the clamping plate 5. The top surfaces of the two inner square frames 3 are provided with guide grooves that cooperate with the guide rods 6, and the guide rods 6 facilitate the movement of the springs 9; and the upper ends of the guide grooves provided on the top surfaces of the two inner square frames 3 are fixedly connected with retaining rings 8, and the guide rods 6 move vertically in the guide grooves, and the top surfaces of the guide rods 6 are fixedly connected with retaining plates 7, and the retaining rings 8 and the retaining plates 7 prevent the guide rods 6 from falling off; and the bottom surfaces of the guide rods 6 are fixedly connected with pressure plates 10, and the pressure plates 10 facilitate the fixing of the I-beams on the top.

[0019] In the utility model, bosses 11 are fixedly connected transversely on both sides of the middle of the top surface of the base frame 1, and the bosses 11 are convenient for supporting the I-beam; the bosses 11 are arranged between the two clamping plates 5, and a groove is transversely opened in the middle of the top surface of the boss, and a plurality of equidistant fixed pulleys 12 are transversely arranged in the groove, and the fixed pulleys 12 are convenient for moving the I-beam; the fixed pulleys 12 are rotatably connected to the inner wall of the groove. A spring 9 is vertically arranged between the pressing plate 10 and the inner top surface of the square frame 3, and the spring 9 is convenient for pressing the I-beam; the spring 9 is vertically movable on the guide rod 6.

[0020] Working principle: When the utility model is used, firstly, the bolts 4 at the front and rear of the square frame 3 are twisted to lengthen the distance between the clamps 5, and the I-beams are placed on the bosses 11 on both sides of the base frame 1, and then the I-beams are pushed inward; when pushed into the inner square frame 3, the guide rod 6 at the upper end of the inner square frame 3 is pulled upward, and the guide rod 6 drives the pressure plate 10 to move upward, at this time the spring 9 is compressed, and then the I-beam is pushed in; when the I-beams at both ends collide, the guide rod 6 is lowered, and at this time the spring 9 pushes the pressure plate 10 downward to press the I-beam, and then the bolts 4 at the front and rear ends of the four square frames 3 are twisted to push the clamps 5 in to fix the two sides of the I-beam.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connection mechanism for butt jointing of I-beams, comprising a base frame (1), characterized in that: The four corners of the lower end of the base frame (1) are fixedly connected to support columns (2), and four square frames (3) are longitudinally fixedly connected to the middle of the top surface of the base frame (1), and a fixing component is provided inside the square frame (3); The fixing assembly comprises two clamping plates (5) arranged on the inner side of each square frame (3); an internal threaded tube cooperating with a bolt (4) is provided in the middle of the front and rear ends of each square frame (3); the bolt (4) is threadedly connected to the square frame (3); and the bottom of the bolt (4) is rotatably connected to the outer side of the clamping plate (5); The top surfaces of the two inner square frames (3) are provided with guide grooves cooperating with the guide rods (6), and the upper ends of the guide grooves provided on the top surfaces of the two inner square frames (3) are fixedly connected with retaining rings (8), the guide rods (6) move vertically in the guide grooves, and the top surfaces of the guide rods (6) are fixedly connected with retaining plates (7), and the bottom surfaces of the guide rods (6) are fixedly connected with pressure plates (10); A boss (11) is transversely fixedly connected to both sides of the middle of the top surface of the base frame (1), the boss (11) is arranged between the two clamping plates (5), and a groove is transversely opened in the middle of the top surface of the boss, a plurality of equidistant fixed pulleys (12) are transversely arranged in the groove, and the fixed pulleys (12) are rotatably connected to the inner wall of the groove; A spring (9) is vertically arranged between the pressure plate (10) and the inner top surface of the square frame (3), and the spring (9) moves vertically on the guide rod (6).

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