Mortise and tenon connection device for fabricated building steel structure

Abstract

The utility model belongs to the technical field of assembly type buildings, and particularly relates to an assembly type building steel structure mortise and tenon connecting device which comprises cross beam stand columns, every two adjacent cross beam stand columns are connected through a mortise and tenon connecting piece, and each mortise and tenon connecting piece comprises a female connecting piece and a male connecting piece. The female connecting piece and the male connecting piece are connected and fixed through bolts. The female connecting piece comprises a first connecting plate, four first right-angle plates are fixed to the top of the first connecting plate, and a second right-angle plate is fixed to the position, located on one side of the first right-angle plate, of the top of the first connecting plate. The whole steel structure can be more stable and higher in safety, due to the fact that the male and female mortise and tenon joint combined installation design is adopted, fine adjustment can be achieved through capsule holes of the steel structure, meanwhile, transverse and longitudinal cross beams and stand columns can be connected, the installation accuracy is improved, and the installation construction difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fabricated building, specifically relates to a fabricated building steel structure mortise and tenon joint device. BACKGROUND

[0002] In the construction of the fabricated steel structure villa, the connection mode of the stand column and the crossbeam plays a key role in the stability and safety of the overall structure. At present, the traditional connection mode mainly covers three kinds of field welding, bolt connection and wedge connection.

[0003] Problems existing in the prior art:

[0004] Field welding forms a stable structure connection by firmly welding the stand column and the crossbeam on the contact surface, however, this method has many drawbacks, the welding operation is highly dependent on the exquisite skill of professional welders, and the high heat generated in the welding process is easy to cause local deformation or stress concentration, thereby negatively affecting the overall performance of the structure, at the same time, the welding quality is uneven, and virtual welding and missing welding phenomena occur from time to time, and most of the welds lack effective corrosion prevention treatment, which seriously affects the durability of the structure;

[0005] Bolt connection achieves structure fastening by pre-drilling accurate holes on the stand column and the crossbeam and then tightly connecting them by high-strength bolts, but this way requires very strict accuracy of drilling and alignment during installation, and it is difficult to control the construction accuracy in the actual construction process, and slight deviation may affect the connection effect and structural stability;

[0006] Wedge connection has limited carrying capacity and is difficult to meet the structural requirements in high-rise or large-scale buildings, and the stability and durability of wedge connection are relatively poor, which requires regular inspection and maintenance, and is not suitable for permanent buildings. INVENTION CONTENTS

[0007] The utility model aims at providing a fabricated building steel structure mortise and tenon joint device, which can make the overall structure of the steel structure more stable and safer, because it is designed by combining male and female mortise and tenon, and can realize micro-adjustment through the self-capsule hole, and can realize the connection of the crossbeam and the stand column in the horizontal and vertical directions, improving the installation accuracy and reducing the installation construction difficulty.

[0008] The technical scheme adopted by the utility model is as follows:

[0009] A fabricated building steel structure mortise and tenon joint device, comprising a crossbeam stand column, two adjacent crossbeam stand columns are connected to each other through a mortise and tenon connecting piece, the mortise and tenon connecting piece comprises a female connecting piece and a male connecting piece, and the female connecting piece and the male connecting piece are fixed to each other through a bolt connection;

[0010] The female connecting piece comprises a first connecting plate, four first right-angle plates fixed on the top of the first connecting plate, a second right-angle plate fixed on the top of the first connecting plate and located at one side of the first right-angle plates, the openings of the first right-angle plates and the second right-angle plate are all directed to the four corners of the first connecting plate, a cross-shaped groove is formed between the outer walls of the four second right-angle plates arranged on the first connecting plate, an L-shaped groove is formed between the outer walls of the first right-angle plates and the second right-angle plate, and two first connecting holes perpendicular to each other are arranged on the outer walls of the first right-angle plates and the second right-angle plate.

[0011] The male connecting piece comprises a second connecting plate, a cross-shaped plate fixed on one side of the second connecting plate and matched with the cross-shaped groove, a third right-angle plate arranged on the outer wall of the second connecting plate and located at the four openings of the cross-shaped plate, the third right-angle plate is matched with the L-shaped groove, two second connecting holes perpendicular to each other are arranged on the outer wall of the third right-angle plate, and a third connecting hole is arranged on the outer wall of the cross-shaped plate and corresponds to the second connecting hole.

[0012] The outer walls of the first connecting plate and the second connecting plate and close to the four corners are all provided with capsule holes.

[0013] The outer walls of the two ends of the beam column are all provided with second reserved holes, and the outer walls of the four sides of the beam column and close to the two ends are all provided with first reserved holes, which are used for connecting and fixing the beam column and the mortise and tenon connecting piece.

[0014] The beam column is a hollow square tube, and operation holes are arranged on the outer walls of the two sides of the beam column.

[0015] The two right-angle edges of the first right-angle plate, the second right-angle plate and the third right-angle plate are of the same length, the two right-angle edges of the first right-angle plate and the second right-angle plate are all extended to the edge position of the first connecting plate, and the two right-angle edges of the third right-angle plate are extended to the edge position of the second connecting plate.

[0016] The technical effects achieved by the utility model are as follows:

[0017] The mortise and tenon connecting piece is provided, so that the whole steel structure is more stable and safer, the mortise and tenon combination installation design is adopted, the micro adjustment can be realized through the capsule hole, the connection between the horizontal beam and the vertical column in the horizontal direction and the vertical direction can be realized, the installation precision is improved, and the installation construction difficulty is reduced; the installation difficulty of the horizontal beam is simplified, and the installation efficiency is improved; the mortise and tenon structure is convenient and reliable to be fixed, and the environmental protection benefits such as recycling and secondary utilization can be realized in the aspects of maintenance and reconstruction. DRAWINGS

[0018] Figure 1 It is a schematic view of a beam column connecting structure of the utility model;

[0019] Figure 2 is the beam column connection explosion structure schematic diagram of the utility model;

[0020] Figure 3 is the female connecting piece structure schematic diagram of the utility model;

[0021] Figure 4 is the male connecting piece structure schematic diagram of the utility model;

[0022] Figure 5 is the beam column structure schematic diagram of the utility model.

[0023] In the drawing, the component list represented by each sign is as follows:

[0024] 1, beam column; 2, mortise and tenon connecting piece; 21, first connecting plate; 22, first right angle plate; 23, second right angle plate; 24, first connecting hole; 25, second connecting plate; 26, cross plate; 27, third right angle plate; 28, second connecting hole; 3, first reserved hole; 4, second reserved hole; 5, capsule hole; 6, operation hole. DETAILED DESCRIPTION

[0025] In order to make the purpose and the advantage of the utility model more clearly and clearly, the utility model is specifically explained below with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0026] As Figures 1-5 Indicated, a kind of fabricated building steel structure mortise and tenon connecting device, including beam column 1, two adjacent beam columns 1 are connected by mortise and tenon connecting piece 2 each other, mortise and tenon connecting piece 2 includes female connecting piece and male connecting piece, and female connecting piece and male connecting piece are mutually fixed by bolt connection, beam column 1 uses standard general column, and both ends of beam column 1 are factory welding standard plug piece;

[0027] Female connecting piece includes first connecting plate 21, four first right angle plates 22 are fixed on the top of first connecting plate 21, second right angle plate 23 is fixed on the top of first connecting plate 21 and located first right angle plate 22 side, the opening of first right angle plate 22 and second right angle plate 23 all faces four corners of first connecting plate 21, a cross slot is formed between the outer wall of four second right angle plates 23 arranged on first connecting plate 21, an L-shaped slot is formed between the outer wall of first right angle plate 22 and second right angle plate 23, two mutually perpendicular first connecting holes 24 are arranged on the outer wall of first right angle plate 22 and second right angle plate 23, and multiple first connecting holes 24 on the same side are flush;

[0028] The male connector comprises a second connecting plate 25, one side of the second connecting plate 25 is fixed with a cross plate 26 matched with the cross slot, the outer wall of the second connecting plate 25 and located at the four openings of the cross plate 26 is provided with a third right-angle plate 27, the third right-angle plate 27 is matched with the L-shaped slot, the outer wall of the third right-angle plate 27 is provided with two second connecting holes 28 perpendicular to each other, the outer wall of the cross plate 26 is provided with third connecting holes corresponding to the second connecting holes 28, and the third connecting holes on the same side are flush with the second connecting holes 28; the first connecting plate 21 and the second connecting plate 25 are arranged at the connecting portions of the two beam columns 1 respectively;

[0029] The two right-angle edges of the first right-angle plate 22, the second right-angle plate 23 and the third right-angle plate 27 are of the same length, the two right-angle edges of the first right-angle plate 22 and the second right-angle plate 23 extend to the edge position of the first connecting plate 21, and the two right-angle edges of the third right-angle plate 27 extend to the edge position of the second connecting plate 25.

[0030] According to the above structure, when the male connector and the female connector are connected and fixed, the female connector is first fixed on one of the beam columns 1, then the cross plate 26 on the male connector is inserted into the cross slot, the third right-angle plate 27 is matched with the L-shaped slot, the corresponding first connecting hole 24 and the second connecting hole 28 are aligned, the bolt is inserted into the first connecting hole 24 and the second connecting hole 28, the nut is tightened, the female connector and the male connector are fixed and connected, and the male connector is fixed on the other beam column 1; the connection mode is simple and efficient, the construction personnel can quickly complete the component installation, the on-site construction time is shortened, the beam column 1 and the mortise and tenon connector 2 are designed to be standardized and modularized, the construction personnel can easily master the installation method, and the operation difficulty is reduced.

[0031] As shown in Figure 5 , the outer wall of the two ends of the beam column 1 is provided with the second reserved hole 4, and the outer wall of the four sides of the beam column 1 and close to the two end portions is provided with the first reserved hole 3, which is used for connecting and fixing the beam column 1 and the mortise and tenon connector 2;

[0032] As shown in Figures 3-4 , the outer wall of the first connecting plate 21 and the second connecting plate 25 and close to the four corner positions is provided with the capsule hole 5, and the second reserved hole 4 and the first reserved hole 3 can be connected with the capsule hole 5 through the bolt;

[0033] According to the above structure, when the first connecting plate 21 and the second connecting plate 25 are fixed in the beam column 1, the capsule hole 5 on the first connecting plate 21 and the second connecting plate 25 is aligned with the corresponding first reserved hole 3 or the second reserved hole 4, then the bolt is passed through the capsule hole 5, the first reserved hole 3 or the second reserved hole 4, and the first connecting plate 21 and the second connecting plate 25 are stably installed and fixed; the capsule hole 5 is arranged, the mortise and tenon connector 2 can be adjusted through the capsule hole 5, the construction fine error can be better completed, and the installation safety and firmness of the steel structure building structure are ensured.

[0034] As shown in Figure 1 , Figure 2 and Figure 5 , the beam column 1 is a hollow square tube body, and the operation hole 6 is formed through the outer wall of the beam column 1.

[0035] According to the above, the operation hole 6 is arranged, which facilitates the connection and fixation of the beam column 1 and the first connecting plate 21 or the second connecting plate 25 in the later period, and the practicability of the equipment is increased.

[0036] The working principle of the utility model is as follows: the beam column 1 fixed with the male connector is moved to be close to the beam column 1 fixed with the female connector, the cross plate 26 on the male connector is aligned with the cross groove of the female connector, and is slowly inserted, while ensuring that the third right-angle plate 27 is aligned with the L-shaped groove and is inserted; careful inspection is conducted, the first connecting hole 24 on the outer wall of the first right-angle plate 22 and the second right-angle plate 23 is aligned with the second connecting hole 28 on the outer wall of the third right-angle plate 27 and the third connecting hole on the outer wall of the cross plate 26; the bolt is sequentially inserted into the aligned first connecting hole 24, the second connecting hole 28 and the third connecting hole, and then the nut is tightened, so that the female connector and the male connector are firmly connected, thereby completing the connection and installation of the two beam columns 1; during the installation process, if it is found that the connection is not smooth or firm due to the fine error generated during construction, the mortise and tenon connector 2 can be adjusted through the capsule hole 5; the bolt connecting the first connecting plate 21 or the second connecting plate 25 and the beam column 1 is loosened, the position of the mortise and tenon connector 2 is adjusted within the allowable range of the capsule hole 5, and then the bolt is tightened again, so as to ensure the accuracy and firmness of the installation.

[0037] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A mortise and tenon connection device for fabricated building steel structures, comprising a beam column (1), characterized in that: Two adjacent beam columns (1) are connected with each other through a mortise and tenon connector (2), the mortise and tenon connector (2) comprises a female connector and a male connector, and the female connector and the male connector are fixed through bolt connection with each other; The female connector comprises a first connecting plate (21), four first right angle plates (22) are fixed on the top of the first connecting plate (21), a second right angle plate (23) is fixed on the top of the first connecting plate (21) and located on one side of the first right angle plate (22), the openings of the first right angle plate (22) and the second right angle plate (23) are all directed to the four corners of the first connecting plate (21), a cross-shaped groove is formed between the outer walls of the four second right angle plates (23) arranged on the first connecting plate (21), an L-shaped groove is formed between the outer walls of the first right angle plate (22) and the second right angle plate (23), and two first connecting holes (24) perpendicular to each other are arranged on the outer walls of the first right angle plate (22) and the second right angle plate (23); The male connector comprises a second connecting plate (25), a cross-shaped plate (26) matched with the cross-shaped groove is fixed on one side of the second connecting plate (25), third right angle plates (27) are arranged on the outer walls of the second connecting plate (25) and located at the four openings of the cross-shaped plate (26), the third right angle plates (27) are matched with the L-shaped groove, two second connecting holes (28) perpendicular to each other are arranged on the outer walls of the third right angle plates (27), and third connecting holes are formed in the outer walls of the cross-shaped plate (26) and correspond to the second connecting holes (28).

2. The mortise and tenon connection device for fabricated steel structure of building according to claim 1, characterized in that: Capsule holes (5) are arranged on the outer walls of the first connecting plate (21) and the second connecting plate (25) and close to the corner positions.

3. The mortise and tenon connection device for fabricated steel structure of building according to claim 1, characterized in that: Second reserved holes (4) are formed in the outer walls of the two ends of the beam column (1), first reserved holes (3) are arranged on the outer walls of the beam column (1) and close to the two end positions, and the beam column (1) is connected and fixed with the mortise and tenon connector (2).

4. The mortise and tenon connection device for fabricated steel structure of building according to claim 1, characterized in that: The beam column (1) is a hollow square tube, and operation holes (6) are formed in the outer walls of the beam column (1) and pass through the two sides.

5. The mortise and tenon connection device for fabricated steel structure of building according to claim 1, characterized in that: The two right angle edges of the first right angle plate (22), the second right angle plate (23) and the third right angle plate (27) have the same length, the two right angle edges of the first right angle plate (22) and the second right angle plate (23) extend to the edge positions of the first connecting plate (21), and the two right angle edges of the third right angle plate (27) extend to the edge positions of the second connecting plate (25).

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