Steel structure bolt connecting device

Abstract

The utility model discloses a steel structure bolt connecting device, including steel stand, still include crossbeam steel stand and connecting plate, the crossbeam steel stand end welding has the connecting plate and is fixed to the steel stand side edge through the connecting plate horizontally, the inside of connecting plate is equipped with connecting hole and is symmetric integral molding to have the lug of connecting hole inner wall both sides, the connecting of steel stand and connecting plate inserts the connecting sleeve and is equipped with the clamping slot A of card slot A outer circumferential end, utilize the cooperation of lug other end and clamping slot B, limit bolt angle, make its angle fixed after inserting, can not rotate, utilize the cooperation of annular bevel tooth slot simultaneously, fixed nut, make it can not reverse, in the steel structure use process, ensure that bolt, nut can not rotate, keep the stability of connecting.

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure connectors, and in particular to a steel structure bolt connection device. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. Rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components or parts are usually connected by welds, bolts or rivets. Bolts are the most commonly used connection structure between steel structure components and are widely used.

[0003] The existing methods of using bolts to connect steel structures have the following drawbacks: When using bolts as the connection structure, the main issue to consider is preventing the nuts on the bolt surface from loosening. During the use of the steel structure, factors such as vibration and pressure will affect the nuts over a long period of time, which can easily cause them to deflect. A common solution is to add spring washers, but this method still has certain shortcomings. There is still room for improvement in the stability of bolted steel structures. Therefore, we propose a bolt connection device for steel structures. Utility Model Content

[0004] The main objective of this invention is to provide a bolt connection device for steel structures. By improving the structure of the bolt connection assembly, the stability of steel structure components after bolt connection is adopted can be further improved, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A steel structure bolt connection device includes a steel upright, a crossbeam steel frame, and a connecting plate. The connecting plate is welded to the end of the crossbeam steel frame and is horizontally fixed to the side of the steel upright. The connecting plate has a connecting hole inside, and the inner wall of the connecting hole has symmetrically integrally formed protrusions on both sides. A connecting sleeve is inserted at the connection between the steel upright and the connecting plate, and the outer periphery of the connecting sleeve has a groove A. A bolt is inserted inside the connecting sleeve, and a nut is fitted to the outer periphery of the bolt. The bolt has an integrally formed boss near the turning end, and the outer periphery of the boss has a groove B.

[0006] Furthermore, the steel frame has through holes corresponding to the positions of the connecting holes, and the connecting sleeve passes through the through holes; the through holes corresponding to the positions of the connecting holes, which start inside the steel frame, facilitate the insertion of connecting components to connect the steel structures.

[0007] Furthermore, support ribs are welded between the side of the connecting plate and the upper and lower sides of the crossbeam steel frame; the support ribs set between the crossbeam steel frame and the connecting plate play a role in strengthening the structural connection.

[0008] Furthermore, the length of the connecting sleeve is less than the sum of the depths of the through hole and the connecting hole. One end of the protrusion is inserted into the slot A. The connecting sleeve has an internal through hole, and the bolt passes through the internal through hole. After the connecting sleeve is inserted into place, one end of it close to the steel frame is attached to the surface of the steel frame, and the other end is inserted into the connecting hole halfway. The angle of the connecting sleeve is fixed by the cooperation of the slot A and the protrusion.

[0009] Furthermore, the boss is inserted into the connecting hole and the end of the boss is attached to the end of the connecting sleeve, and the end of the protrusion away from the connecting sleeve is inserted into the slot B; after the bolt is inserted into place, its boss part is inserted into the connecting hole and attached to the end of the connecting sleeve, while the protrusion is inserted into the slot B to fix the angle of the bolt.

[0010] Furthermore, the connecting sleeve has an annular helical tooth groove A on its surface near the nut, and the nut has an annular helical tooth groove B on its surface near the connecting sleeve. The annular helical tooth groove A and the annular helical tooth groove B have opposite directions of meshing inclination. When the nut is screwed clockwise into the outer circumference of the bolt and close to the end of the connecting sleeve, the annular helical tooth groove A and the annular helical tooth groove B come into contact, and the nut can continue to be screwed on. After being fully tightened, the annular helical tooth groove B is properly engaged inside the annular helical tooth groove A. The meshing between the teeth in opposite directions of the two restricts the nut from reversing.

[0011] Compared with the prior art, this utility model has the following advantages: The steel frame surface has through holes for connecting the crossbeam steel frame. The connecting plate has connecting holes corresponding to the through holes, machined inside, with protrusions on both sides of the connecting holes. The connecting plate is fixed to the end of the crossbeam steel frame by welding, and support ribs are welded at the connection point to further improve the structural strength. During connection, the end of the crossbeam steel frame is attached to the side of the steel frame, and the connecting holes are aligned with the through holes. A connecting sleeve is first inserted from one side of the steel frame. After insertion, one end of the connecting sleeve is attached to the surface of the steel frame, and the other end is inserted halfway into the connecting hole. The angle of the connecting sleeve is fixed by the cooperation of the slot A and the protrusions. Then, a bolt is inserted from one side of the connecting plate surface, penetrating the inner through hole. After the bolt is inserted, its protrusion... Partially inserted into the connecting hole and fitting the end of the connecting sleeve, while the protrusion inserts into the slot B to fix the angle of the bolt. After the bolt is installed in place, the nut is tightened. After being fully tightened, the annular helical tooth groove B ensures that it is properly engaged with the annular helical tooth groove A. The meshing between the teeth in opposite directions of the two restricts the nut from rotating, thus completing the connection between the components. Compared with the existing steel component connection structure, by using the cooperation between one end of the protrusion and the slot A at the end of the connecting sleeve to fix the angle of the connecting sleeve after insertion, it is not allowed to rotate. By using the cooperation between the other end of the protrusion and the slot B, the angle of the bolt is restricted, so that the angle is fixed after insertion and cannot rotate. At the same time, the cooperation of the annular helical tooth groove fixes the nut, preventing it from rotating. During the use of the steel structure, it ensures that the bolt and nut cannot rotate, maintaining the stability of the connection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a steel structure bolt connection device according to the present invention.

[0013] Figure 2 This is a disassembled structural diagram of the connection between the steel frame and the connecting plate of a steel structure bolt connection device according to this utility model.

[0014] Figure 3 This is a schematic diagram of the connecting sleeve structure of a steel structure bolt connection device according to the present invention.

[0015] Figure 4 This is a schematic diagram of the bolt structure of a steel structure bolt connection device according to the present invention.

[0016] Figure 5 This is a schematic diagram of the connection between the nut and the end of the connecting sleeve in a steel structure bolt connection device according to this utility model.

[0017] In the diagram: 1. Steel upright; 101. Through hole; 2. Horizontal beam steel frame; 3. Connecting plate; 301. Supporting rib; 4. Connecting hole; 401. Protrusion; 5. Connecting sleeve; 501. Slot A; 502. Internal through hole; 6. Bolt; 601. Boss; 602. Slot B; 7. Nut; 8. Annular oblique tooth groove A; 9. Annular oblique tooth groove B. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-5 As shown, a steel structure bolt connection device includes a steel frame 1, a crossbeam steel frame 2, and a connecting plate 3. The end of the crossbeam steel frame 2 is welded with a connecting plate 3 and is horizontally fixed to the side of the steel frame 1. The connecting plate 3 has a connecting hole 4 inside, and the inner wall of the connecting hole 4 has symmetrically integrally formed protrusions 401 on both sides. A connecting sleeve 5 is inserted at the connection between the steel frame 1 and the connecting plate 3, and a groove A501 is formed on the outer periphery of the connecting sleeve 5. A bolt 6 is inserted inside the connecting sleeve 5, and a nut 7 is fitted on the outer periphery of the bolt 6. A boss 601 is integrally formed near the screwing end of the bolt 6, and a groove B602 is formed on the outer periphery of the boss 601.

[0020] The steel frame 1 has a through hole 101 corresponding to the position of the connecting hole 4. The connecting sleeve 5 passes through the through hole 101. Supporting ribs 301 are welded between the side of the connecting plate 3 and the upper and lower sides of the crossbeam steel frame 2. The through hole 101 corresponding to the position of the connecting hole 4 inside the steel frame 1 facilitates the insertion of connecting components to connect the steel structures. The supporting ribs 301 set between the crossbeam steel frame 2 and the connecting plate 3 strengthen the structural connection.

[0021] Wherein, the length of the connecting sleeve 5 is less than the sum of the depths of the through hole 101 and the connecting hole 4. One end of the protrusion 401 is inserted into the slot A501. The connecting sleeve 5 has an internal through hole 502, and the bolt 6 passes through the internal through hole 502. The boss 601 is inserted into the connecting hole 4, and the end of the boss 601 is attached to the end of the connecting sleeve 5. The end of the protrusion 401 away from the connecting sleeve 5 is inserted into the slot B602. After the connecting sleeve 5 is inserted into place, the end of it close to the steel frame 1 is attached to the surface of the steel frame 1, and the other end is inserted into the connecting hole 4 halfway. The angle of the connecting sleeve 5 is fixed by the cooperation of the slot A501 and the protrusion 401. After the bolt 6 is inserted into place, the part of its protrusion 601 is inserted into the connecting hole 4 and is attached to the end of the connecting sleeve 5. At the same time, the protrusion 401 is inserted into the slot B602 to fix the angle of the bolt 6.

[0022] The connecting sleeve 5 has an annular helical tooth groove A8 on its surface near the end of the nut 7, and the nut 7 has an annular helical tooth groove B9 on its surface near the end of the connecting sleeve 5. The annular helical tooth grooves A8 and B9 have opposite directions of meshing inclination. When the nut 7 is screwed clockwise into the outer circumference of the bolt 6 and close to the end of the connecting sleeve 5, the annular helical tooth grooves A8 and B9 come into contact, and the nut 7 can continue to be screwed on. After being fully tightened, the annular helical tooth groove B9 is properly engaged inside the annular helical tooth groove A8. The meshing between the teeth in opposite directions restricts the nut 7 from reversing.

[0023] It should be noted that this utility model is a steel structure bolt connection device. During installation, the surface of the steel frame 1 is provided with through holes 101 for connecting the crossbeam steel frame 2. The inside of the connecting plate 3 is machined with connecting holes 4 corresponding to the positions of the through holes 101, and the inside of the connecting holes 4 is provided with protrusions 401 on both sides. The connecting plate 3 is fixed to the end position of the crossbeam steel frame 2 by welding, and support ribs 301 are welded at the connection to further improve the structural strength of the connection. When connecting, the end of the crossbeam steel frame 2 is attached to the side of the steel frame 1, and the connecting holes 4 and through holes 101 are aligned. First, the connecting sleeve 5 is inserted from one side of the steel frame 1. After the connecting sleeve 5 is inserted into place, one end of it close to the surface of the steel frame 1 is attached to the surface of the steel frame 1, and the other end is inserted to half the position inside the connecting hole 4. The angle of the connecting sleeve 5 is fixed by the cooperation of the slot A501 and the protrusions 401. Then, the bolt 6 is inserted from one side of the surface of the connecting plate 3 so that it passes through the inner through hole 502. After the bolt 6 is in place, its protrusion 601 is inserted into the connecting hole 4 and fits against the end of the connecting sleeve 5. At the same time, the protrusion 401 is inserted into the slot B602 to fix the angle of the bolt 6. After the bolt 6 is installed, tighten the nut 7. After it is fully tightened, the annular oblique tooth groove B9 is properly engaged in the annular oblique tooth groove A8. By using the meshing between the teeth in opposite directions, the nut 7 is restricted from rotating, thus completing the connection between the components. Compared with the existing steel component connection structure, by using the cooperation between one end of the protrusion 401 and the slot A501 at the end of the connecting sleeve 5, the angle of the connecting sleeve 5 is fixed after it is inserted, so that it cannot rotate. By using the cooperation between the other end of the protrusion 401 and the slot B602, the angle of the bolt 6 is restricted, so that the angle is fixed after it is inserted and cannot rotate. At the same time, by using the cooperation of the annular oblique tooth groove, the nut 7 is fixed and cannot rotate. During the use of the steel structure, it is ensured that the bolt 6 and the nut 7 cannot rotate, maintaining the stability of the connection.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel structure bolt connection device, comprising a steel frame (1), characterized in that, It also includes a crossbeam steel frame (2) and a connecting plate (3). The end of the crossbeam steel frame (2) is welded with a connecting plate (3) and is horizontally fixed to the side of the steel frame (1) through the connecting plate (3). The connecting plate (3) has a connecting hole (4) inside and a symmetrical protrusion (401) is integrally formed on both sides of the inner wall of the connecting hole (4). A connecting sleeve (5) is inserted at the connection between the steel frame (1) and the connecting plate (3) and a slot A (501) is opened at the outer periphery of the connecting sleeve (5). A bolt (6) is inserted inside the connecting sleeve (5) and a nut (7) is connected to the outer periphery of the bolt (6). A boss (601) is integrally formed near the screwing end of the bolt (6) and a slot B (602) is opened on the outer periphery of the boss (601).

2. The steel structure bolt connection device according to claim 1, characterized in that: The steel frame (1) has a through hole (101) inside that corresponds to the position of the connecting hole (4), and the connecting sleeve (5) passes through the through hole (101).

3. The steel structure bolt connection device according to claim 1, characterized in that: Support ribs (301) are welded between the side of the connecting plate (3) and the upper and lower sides of the crossbeam steel frame (2).

4. A steel structure bolt connection device according to claim 1, characterized in that: The length of the connecting sleeve (5) is less than the sum of the depths of the through hole (101) and the connecting hole (4). One end of the protrusion (401) is inserted into the slot A (501). The connecting sleeve (5) has an inner through hole (502) and the bolt (6) passes through the inner through hole (502).

5. A steel structure bolt connection device according to claim 1, characterized in that: The boss (601) is inserted into the connecting hole (4) and the end of the boss (601) is attached to the end of the connecting sleeve (5). The end of the protrusion (401) away from the connecting sleeve (5) is inserted into the slot B (602).

6. A steel structure bolt connection device according to claim 1, characterized in that: The connecting sleeve (5) has an annular oblique tooth groove A (8) on one end of the surface near the nut (7), and the nut (7) has an annular oblique tooth groove B (9) on one end of the surface near the connecting sleeve (5). The annular oblique tooth groove A (8) and the annular oblique tooth groove B (9) have opposite meshing directions.

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