Combined steel frame lock angle connecting piece

Abstract

The invention discloses a combined steel frame lock angle connecting piece, which relates to the field of steel structure connecting pieces, and comprises a base plate, four insertion handles are symmetrically distributed on the upper and lower surfaces of the base plate, the base plate is arranged between vertex angles of upper and lower standard knots, and the insertion handles are respectively inserted into vertical rod cavities of standard parts; the number of the clamping plates is two, the two clamping plates are flatly attached to the outer portions of the two adjacent side faces of the standard knot, the upper edge and the lower edge of each clamping plate are provided with flat folding lugs, and the flat folding lugs clamp the transverse rods of the two standard parts which are distributed up and down correspondingly. The inner plywood and the outer plywood internally and externally wrap and clamp the vertex angle joint of the standard part, the clamping plates are matched to clamp the standard part, the diagonal bolts can lock the vertex angle connecting joint of the supporting framework in one step, excessive assembling holes do not need to be formed in the surface of the standard part, the assembling process is simple, the assembling efficiency is high, and the assembling cost is low. The supporting structure has good structural strength, and the clamping type locking angle is fixed, so that standard parts can be automatically aligned, and the assembly error is reduced.

Description

Technical Field

[0001] The present invention relates to the field of steel structure connectors, and particularly to a combined steel frame corner locking connector. Background Art

[0002] Prefabricated steel structure buildings have inherent prefabrication advantages. Steel components are prefabricated in factories and installed on site, which can improve the construction speed. For large-span steel structure buildings, during the steel structure construction process, temporary support frames need to be set up for steel components such as segmented hoisted steel trusses and super-long and overweight steel beams to meet the requirements of high-altitude docking and closing.

[0003] The support frames generally adopt scaffolding, steel section support frames, lattice support frames, etc. This type of support frame structure is relatively scattered, and each rod needs to be spliced and fixed on site one by one. To save construction time, prefabricated support frames have been gradually and maturely applied. The prefabricated support frame is composed of multiple superimposed standard sections, and each standard section is composed of multiple standard parts enclosed. To build the support frame on site, only need to enclose and fix the standard parts of each standard section, and then superimpose and fix each standard section.

[0004] The enclosure and fixation of the standard parts of the prefabricated support frame, as well as the superimposed fixation between each standard section, are all connected by bolts. The enclosure and fixation position of the standard parts and the superimposed fixation position between the standard sections converge to the same top corner area, and a large number of holes for assembling bolts need to be set on the surface of the standard parts in this area, resulting in a sharp reduction in the structural strength of the support frame and prone to assembly errors, affecting the assembly efficiency and stability. Summary of the Invention

[0005] In order to make up for the deficiencies of the existing technology problems, the purpose of the present invention is to provide a combined steel frame corner locking connector, which is used to solve the problems that the holes for assembling bolts set in the connection area of the prefabricated steel support frame are dense, resulting in a reduction in the structural strength of the support frame and prone to assembly errors.

[0006] In order to solve the existing technology problems, the technical solution of the present invention is as follows: A combined steel frame corner locking connector includes a backing plate. Four insertion handles are symmetrically distributed on the upper and lower surfaces of the backing plate. The backing plate is placed between the top corners of the upper and lower standard sections, and the insertion handles are respectively inserted into the vertical rod cavities of the standard parts; Clamping plates. There are two clamping plates, which are flatly attached to the outside of two adjacent sides of the standard section. The upper and lower edges of the clamping plates have flat folding ears, and the flat folding ears respectively clamp the cross bars of two vertically distributed standard parts; Inner closing plate. The inner closing plate is arranged inside the top corner of the standard section. Both sides of the inner closing plate are bent in a V shape to form inner flat pressing parts. The inner flat pressing parts are flatly attached to the inner side surfaces of the standard parts. The upper and lower parts of the edges of the inner flat pressing parts both have inner vertical folding ears, and the inner vertical folding ears clamp the inner sides of the vertical rods of the standard parts; The outer plywood is arranged on the outer side of the top corner of the standard section. Both sides of the outer plywood are bent in a V shape to form outer flat pressing parts, and the outer flat pressing parts are flatly attached to the outer sides of the two clamping plates. The inner plywood and the outer plywood are tightened by diagonal bolts.

[0007] Preferably, one side of the clamping plate has an outer vertical folding ear, and the outer vertical folding ear is clamped on the outer side of the vertical rod of the standard part. The outer vertical folding ear and the inner vertical folding ear form a counter-pressure on the vertical rod of the standard part.

[0008] Preferably, the ends of the outer vertical folding ear and the flat folding ear both have rounded corners with upturned edges.

[0009] Preferably, the end of the inner vertical folding ear is bent circuitously outwards, so that the end face of the inner vertical folding ear forms a frame shape, and the frame face of the inner vertical folding ear presses on the outer side of the flat folding ear.

[0010] Preferably, the insertion handle is in the shape of a flat plate, a chamfer is provided at the end of the insertion handle, and the insertion handle is aligned with the diagonal of the vertical rod cavity of the standard part.

[0011] Preferably, both sides of the end of the backing plate have protruding buckling parts. The buckling parts on the inner side of the backing plate are clamped on the edge of the inner flat pressing part, and the surface of the clamping plate has a biting opening, and the buckling parts on the outer side of the backing plate are clamped on the biting opening.

[0012] Preferably, two diagonal bolts are provided, and the holes for inserting the diagonal bolts on the surfaces of the inner plywood and the outer plywood are vertical waist-shaped holes.

[0013] Preferably, strengthening bolts are arranged through the outer flat pressing part, the clamping plate, the vertical rod of the standard part, and the inner flat pressing part, and four strengthening bolts are arranged for four aligned standard parts.

[0014] Preferably, the inner hexagonal ends of the strengthening bolts and the diagonal bolts are in contact with each other.

[0015] Preferably, the V-shaped angle of the inner flat pressing part is 1-3° greater than the enclosing angle of the standard part, and the V-shaped angle of the outer flat pressing part is 1-3° less than the enclosing angle of the standard part.

[0016] Compared with the prior art, the advantages of the present invention are as follows: In the present invention, the inner plywood and the outer plywood sandwich the top corner node of the standard part inside and outside, cooperate with the clamping plate to clamp the standard part, and the diagonal bolts can lock the top corner connection node of the support structure in one step, without setting excessive assembly holes on the surface of the standard part, ensuring that the support structure has good structural strength, and the sandwich type angle locking fixation can make the standard parts automatically align and reduce the assembly error. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the assembly combination of the standard part.

[0018] Figure 2One of the overall structural diagrams of the present invention.

[0019] Figure 3 Another overall structural diagram of the present invention.

[0020] Figure 4 The structural disassembly diagram of the present invention.

[0021] Figure 5 The locking angle assembly flow chart of the present invention.

[0022] Figure 6 The structural diagram of the clamping plate of the present invention.

[0023] Figure 7 The structural diagram of the inner combined plate of the present invention.

[0024] Reference numerals: 1, backing plate; 11, insertion handle; 12, buckling part; 2, clamping plate; 21, outer vertical folding ear; 22, flat folding ear; 23, engaging opening; 3, inner combined plate; 31, inner flat pressing part; 32, inner vertical folding ear; 4, outer combined plate; 41, outer flat pressing part; 5, diagonal bolt; 6, strengthening bolt. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] The combined steel frame locking angle connector is used for locking angle connection and fixation of the steel support structure. As Figure 1 shown, the steel support structure is composed of multiple stacked standard sections, and each standard section is surrounded by four standard parts. The standard parts are pre-welded into one body by vertical poles, horizontal bars, and diagonal web members in the factory. The locking angle connection part of the support structure is located at the converging top angle part of the standard parts, and this part is the converging area of the top angles of the four standard parts.

[0027] As Figure 4 shown, the locking angle connector includes a backing plate 1, a clamping plate 2, an inner combined plate 3, an outer combined plate 4, and a diagonal bolt 5.

[0028] As Figure 4 shown, the backing plate 1 is a flat plate member, and the two ends of the backing plate 1 extend perpendicular to each other. Four insertion handles 11 are fixedly welded to the upper surface and the lower surface of the backing plate 1. The insertion handles 11 are flat plates, and chamfers are provided at the ends of the insertion handles 11.

[0029] As Figure 4 、 Figure 6As shown, there are two clamping plates 2. The main body of the clamping plate 2 is convex. Both the upper and lower parts on one side of the clamping plate 2 are bent towards the same side to form flat folding ears 22. The flat folding ears 22 extend horizontally. The other side of the clamping plate 2 is bent by 90° to form an outer vertical folding ear 21, and a notch is provided at the middle position of the outer vertical folding ear 21.

[0030] As Figure 4 , Figure 7 shown, both sides of the inner composite plate 3 are stamped and bent to form V-shaped symmetric inner flat pressing parts 31. The top and bottom edges of the inner flat pressing parts 31 are both bent to form inner vertical folding ears 32. The bending directions of the inner vertical folding ears 32 at the edges of the two inner flat pressing parts 31 are perpendicular. The surface of the inner composite plate 3 has two vertically extending waist-shaped holes.

[0031] As Figure 4 shown, both sides of the outer composite plate 4 are stamped and bent to form V-shaped symmetric outer flat pressing parts 41. The surface of the outer composite plate 4 has two vertically extending waist-shaped holes.

[0032] The locking angle connection process of the steel frame support member is as follows: As Figure 2 , Figure 3 , Figure 5 shown, enclose the four standard parts of the lower standard section, and set a set of connecting parts at each top corner position. Cover the top corner surface of the standard part with the backing plate 1. Insert the lower insertion handle 11 into the cavities of the vertical poles of two adjacent standard parts. The insertion handle 11 is inserted along the diagonal of the vertical pole cavity of the standard part so that the insertion handle 11 can stably position each standard part. Then, insert the bottom of the standard part of the upper standard section into the insertion handle 11 on the upper part of the backing plate 1. At this time, the top corners of the four standard parts gather at one corner; Symmetrically and flatly attach the two clamping plates 2 to the surfaces of the two side standard parts. The flat folding ears 22 clamp the cross bars of the upper and lower two standard parts, and the outer vertical folding ears 21 clamp the sides of the vertical poles of the upper and lower two standard parts. Place the inner composite plate 3 inside the top corner of the standard section. The inner flat pressing parts 31 are flatly attached to the inner sides of the standard parts. The four inner vertical folding ears 32 are respectively clamped to the sides of the four standard part vertical poles, so that the inner vertical folding ears 32 and the outer vertical folding ears 21 form a counter-pressure on the standard part vertical poles; Set the outer composite plate 4 outside the top corner of the standard section. The outer flat pressing parts 41 are flatly attached to the outside of the two clamping plates 2. Pass two diagonal bolts 5 through the waist-shaped holes on the surfaces of the inner composite plate 3 and the outer composite plate 4, and tighten the inner composite plate 3 and the outer composite plate 4. At this time, the inner flat pressing parts 31 and the outer flat pressing parts 41 counter-press the two sides of the standard part vertical poles, and the inner vertical folding ears 32 and the outer vertical folding ears 21 counter-press the other two sides of the vertical poles, so that the vertical pole planes are tightened and aligned. Lock the vertical position of the standard parts by clamping the cross bars with the flat folding ears 22, so that the top corner positions of the four standard parts are automatically aligned and locked.

[0033] As Figure 3As shown, the end of the inner vertical folding ear 32 is bent outward in a circuitous manner so that the end surface of the inner vertical folding ear 32 forms a frame surface. When the inner vertical folding ear 32 is laterally flat against the column, its frame surface is pressed against the outer side of the flat folding ear 22, applying a shaping force to the flat folding ear 22, thereby improving the stability of locking the standard part in the vertical direction.

[0034] The V-shaped angle of the inner flat pressing part 31 is 1-3° greater than the enclosure angle of the standard part, and the V-shaped angle of the outer flat pressing part 41 is 1-3° less than the enclosure angle of the standard part. When the inner and outer clamping plates 3 and 4 are tightened by the diagonal bolts 5, the inner and outer flat pressing parts 31 and 41 resist micro-deformation, thereby increasing the clamping force on the standard part and improving the locking stability effect of the standard part.

[0035] The ends of the outer vertical folding ears 21 and the flat folding ears 22 have rounded corners, which facilitates the outer vertical folding ears 21 and the flat folding ears 22 to be clamped on the outer sides of the horizontal rod and the vertical rod.

[0036] like Figure 2 , Figure 3 , Figure 4 As shown, both sides of the end of the pad 1 have protruding buckling parts 12, the buckling part 12 on the inner side of the pad 1 is clamped on the edge of the inner flat pressing part 31, the surface of the clamping plate 2 has a bite opening 23, and the buckling part 12 on the outer side of the pad 1 clamps the bite opening 23, thereby improving the bonding strength between the pad 1 and the clamping plate 2 and the inner clamping plate 3, and maintaining good restraining force between the various components.

[0037] If the weight of the steel structure carried by the steel frame support is large or the extension height of the support structure is too large, it is necessary to increase the fixing strength of the connection point. Reinforcing bolts 6 can be set through the outer flat pressing part 41, the clamping plate 2, the standard part upright, and the inner flat pressing part 31. Four reinforcing bolts 6 are set for four standard parts, which can effectively improve the locking strength of the assembly node.

[0038] like Figure 3 As shown, the reinforcing bolts 6 and the diagonal bolts 5 are located on two vertical planes. Both the reinforcing bolts 6 and the diagonal bolts 5 are penetrated from the inside of the standard section to the outside and then the nuts are tightened. The hexagonal ends of the reinforcing bolts 6 and the diagonal bolts 5 on the inside are in contact with each other, which can reduce the loosening range of the reinforcing bolts 6 and the diagonal bolts 5 and improve the connection stability.

[0039] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A combined steel frame corner locking connector, characterized in that Including: A backing plate (1), on the upper and lower surfaces of the backing plate (1), four inserting handles (11) are symmetrically distributed. The backing plate (1) is placed between the top corners of the upper and lower standard sections, and the inserting handles (11) are respectively inserted into the vertical rod cavities of the standard parts; Two clamping plates (2), the two clamping plates (2) are flat against the outer sides of two adjacent sides of the standard section. The upper and lower edges of the clamping plates (2) have flat folding ears (22), and the flat folding ears (22) respectively clamp the cross bars of two standard parts distributed up and down; An inner joining plate (3), the inner joining plate (3) is arranged inside the top corner of the standard section. The two sides of the inner joining plate (3) are bent in a V shape to form inner flat pressing parts (31). The inner flat pressing parts (31) are flat against the inner sides of the standard parts. The upper and lower parts of the edges of the inner flat pressing parts (31) both have inner vertical folding ears (32), and the inner vertical folding ears (32) clamp the inner sides of the vertical rods of the standard parts; An outer joining plate (4), the outer joining plate (4) is arranged outside the top corner of the standard section. The two sides of the outer joining plate (4) are bent in a V shape to form outer flat pressing parts (41). The outer flat pressing parts (41) are flat against the outer sides of the two clamping plates (2). The inner joining plate (3) and the outer joining plate (4) are tightened by a diagonal bolt (5).

2. The combined steel frame corner locking connector according to claim 1, characterized in that, One side of the clamping plate (2) has an outer vertical folding ear (21), and the outer vertical folding ear (21) clamps the outer side of the vertical rod of the standard part. The outer vertical folding ear (21) and the inner vertical folding ear (32) form a counter pressure on the vertical rod of the standard part.

3. The combined steel frame corner locking connector according to claim 2, characterized in that The ends of the outer vertical folding ear (21) and the flat folding ear (22) both have rounded corners with upturned edges.

4. The combined steel frame corner locking connector according to claim 1, characterized in that, The end of the inner vertical folding ear (32) is bent circuitously outwards, so that the end face of the inner vertical folding ear (32) forms a frame-like shape, and the frame surface of the inner vertical folding ear (32) presses on the outer side of the flat folding ear (22).

5. The combined steel frame corner locking connector according to claim 1, characterized in that, The inserting handle (11) is in the shape of a flat plate, and a chamfer is arranged at the end of the inserting handle (11). The inserting handle (11) is aligned with the diagonal of the vertical rod cavity of the standard part.

6. The combined steel frame corner locking connector according to claim 1, characterized in that Both sides of the end of the backing plate (1) have protruding buckling parts (12). The buckling part (12) on the inner side of the backing plate (1) clamps the edge of the inner flat pressing part (31), and the surface of the clamping plate (2) has a biting opening (23). The buckling part (12) on the outer side of the backing plate (1) clamps the biting opening (23).

7. The combined steel frame corner locking connector according to claim 1, characterized in that, There are two diagonal bolts (5), and the holes on the surfaces of the inner joining plate (3) and the outer joining plate (4) through which the diagonal bolts (5) are inserted are vertical waist-shaped holes.

8. The combined steel frame corner locking connector according to claim 7, characterized in that, Reinforcing bolts (6) are arranged through the outer flat pressing part (41), the clamping plate (2), the vertical rod of the standard part, and the inner flat pressing part (31). Four reinforcing bolts (6) are arranged for the four aligned standard parts.

9. The combined steel frame corner locking connector according to claim 8, wherein, The inner hexagonal ends of the reinforcing bolts (6) and the diagonal bolts (5) are in contact with each other.

10. The combined steel frame corner locking connector according to claim 1, characterized in that, The V-shaped angle of the inner flat pressing part (31) is 1-3° greater than the enclosing angle of the standard part, and the V-shaped angle of the outer flat pressing part (41) is 1-3° less than the enclosing angle of the standard part.

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