Adjustable splicing structure of steel structure

Abstract

The utility model relates to an adjustable splicing structure of a steel structure, and belongs to the technical field of steel structure production. Comprising an upper-layer connecting flat plate and a lower-layer connecting flat plate which are parallel to each other and arranged in a spaced mode, the lower-layer connecting flat plate is installed on the top of a supporting stand column, a guiding stand column is arranged between the upper-layer connecting flat plate and the lower-layer connecting flat plate, and a beam connecting piece is installed on the guiding stand column in a position-adjustable mode. The distance between the cross beam connecting piece and the lower-layer connecting flat plate can be adjusted, and the cross beam is connected with the cross beam connecting piece. Compared with the prior art, the beam connecting device has the advantages that the beam connecting piece is installed on the guide stand column in a position-adjustable mode, so that the distance between the beam connecting piece and the lower-layer connecting flat plate can be adjusted, the height position of a beam can be finely adjusted in an auxiliary mode, and the adaptability of steel structures during connection is effectively improved.

Description

Technical Field

[0001] The utility model relates to an adjustable splicing structure of a steel structure, belonging to the technical field of steel structure production. Background Art

[0002] Prefabricated steel structure is a prefabricated building composed of steel components. Prefabricated steel structure building has flexible spatial layout, can realize the industrialization and industrialization of house construction, short construction period, no on-site cast-in-place nodes, and faster installation speed than prefabricated concrete structure. In addition, steel structure is a ductile material and has a lighter weight than brick-concrete and concrete structures.

[0003] For example, in the patent document with patent publication number 202220998420.3, a beam reinforcement structure for a steel structure panel house is disclosed, which includes a column, a transversely extending beam is provided on the column, a first mounting seat is fixed on the column, the first mounting seat is located above the beam, a second mounting seat is provided on the beam, a rope is provided between the first mounting seat and the second mounting seat, the rope is obliquely stretched between the first mounting seat and the second mounting seat, a tensioning device for adjusting the tension of the rope is installed on the first mounting seat, the tensioning device includes a first pull rod hinged to the first mounting seat, and a second pull rod connected to the rope, and also includes a rotating sleeve, the end of the first pull rod extends into the rotating sleeve and rotates with it, the inner hole of the rotating sleeve is provided with an internal thread, the outer wall of the second pull rod is provided with an external thread, and the second pull rod extends into the rotating sleeve.

[0004] According to the prior art literature, the connection of steel structure beams in the prior art is usually fixed by welding, which is cumbersome to operate, cannot be installed quickly, has low work efficiency, and cannot adjust the height of the steel structure beams after welding, and has low applicability.

[0005] In order to solve one of the above problems, an adjustable splicing structure of a steel structure is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: how to achieve auxiliary fine-tuning of the height position of the crossbeam, effectively improving the adaptability when connecting the steel structure, and for this purpose providing an adjustable splicing structure of the steel structure.

[0007] The adjustable splicing structure of the steel structure described in the utility model is characterized by comprising an upper connecting plate and a lower connecting plate which are parallel to each other and spaced apart, the lower connecting plate being installed on the top of a supporting column, a guide column being arranged between the upper connecting plate and the lower connecting plate, a crossbeam connecting piece being adjustable in position on the guide column so that the distance between the crossbeam connecting piece and the lower connecting plate can be adjusted, and the crossbeams are connected to the crossbeam connecting piece.

[0008] In the prior art, the connection of steel structure beams is usually fixed by welding, which is cumbersome to operate, cannot be quickly installed, has low work efficiency, and cannot adjust the height of the steel structure beam after welding, which has low applicability. The present application has a beam connector installed on the guide column in an adjustable position, so that the distance between the beam connector and the lower connecting plate can be adjusted, which can assist in fine-tuning the height position of the beam, and effectively improve the adaptability of the steel structure when connecting.

[0009] Preferably, the beam connecting member includes an outer sliding sleeve which is sleeved on the outside of the guide column and slidably cooperates with the guide column. A front connecting beam and a rear connecting beam are symmetrically arranged on both sides of the outer sliding sleeve. The other ends of the front connecting beam and the rear connecting beam are respectively welded with connecting end plates and tail plates. A locking plate and a screw parallel to the guide column are also arranged between the upper connecting plate and the lower connecting plate. The screw passes through the front connecting beam, and an upper nut and a lower nut are respectively threadedly connected to the screws on both sides of the front connecting beam, and the tail plate is detachably connected to the locking plate.

[0010] After the tail plate and the locking plate are disconnected, the position of the front connecting beam on the screw is adjusted by changing the positions of the upper nut and the lower nut. The guide column and the outer sleeve are slidably matched to ensure the lifting adjustment while also ensuring the connection strength. After the front connecting beam is adjusted into place, the tail plate and the locking plate are re-fixed, and the beam is fixed to the front connecting beam at the same time.

[0011] Preferably, the tail plate is a rectangular plate, and a connecting bolt is provided at each of the four corners. The locking plate is provided with two spaced apart long bolt holes along its length direction. The connecting bolts penetrate the corresponding long bolt holes and are threadedly connected with the locking nuts to fix the tail plate to the locking plate, which can ensure lifting and lowering adjustment and achieve stable connection.

[0012] Preferably, the lower connecting plate is installed on the top of the supporting column through a rotating adjustment mechanism, and the rotating adjustment mechanism includes a supporting tube connected to the lower connecting plate, the bottom end of the supporting tube is provided with an upper connecting ring, the upper end of the supporting column is inserted into the supporting tube, and a lower connecting ring cooperating with the upper connecting ring is provided at the top of the supporting column, the cross-sections of the supporting column and the supporting tube are both circular, the outer diameter of the supporting column is smaller than the inner diameter of the supporting tube, so that the supporting column and the supporting tube can rotate relative to each other around their center lines; multiple groups of arc-shaped long holes are provided on the upper connecting ring and the lower connecting ring, and connecting bolts B penetrate the corresponding arc-shaped long holes to connect the lower connecting ring and the upper connecting ring together, and by providing multiple groups of arc-shaped long holes, the supporting column and the supporting tube can be rotated relative to each other, and when they reach the required position, they are fixed by connecting bolts B.

[0013] It can not only assist in fine-tuning the height position of the beam, but also realize the relative rotation of the supporting column and the supporting tube. When the required position is reached, it is fixed by connecting bolt B.

[0014] Furthermore, the four groups of arc-shaped long strip holes on the lower connecting ring and the upper connecting ring are arranged around the same vertical center line and the angle between two adjacent ones is 90 degrees.

[0015] Preferably, a first connecting flange is provided at the end of the front connecting crossbeam, a second connecting flange is provided at the end of the crossbeam, the first connecting flange and the second connecting flange are connected by high-strength bolts, and an adjustable telescopic oblique support A is installed between the lower connecting plate and the crossbeam to further support the crossbeam.

[0016] Preferably, the adjustable telescopic inclined support A includes an internal threaded connecting tube A, a screw rod A and a screw rod B, one end of the screw rod A is hinged to a hinged seat A on a lower connecting plate, the other end of the screw rod A is threadedly connected to the internal threaded connecting tube A, the other end of the internal threaded connecting tube A is threadedly connected to the screw rod B, the other end of the screw rod B is hinged to a hinged seat B at the bottom of the beam, and the threads of the screw rods A and B have opposite rotation directions.

[0017] By rotating the internal thread connecting tube A, the overall length of the internal thread connecting tube A, the screw rod A and the screw rod B is changed to adapt to the change of the height position of the beam.

[0018] Preferably, the end of the front connecting crossbeam is provided with a first hinge seat, the end of the crossbeam is provided with a second hinge seat, the first hinge seat and the second hinge seat are hinged by a high-strength pin shaft, an adjustable telescopic oblique support B is installed between the lower connecting plate and the crossbeam, and an adjustable telescopic oblique support C is installed between the upper connecting plate and the crossbeam. It can adapt to the installation of crossbeams at multiple angles, can be installed quickly, and improve work efficiency.

[0019] Preferably, the adjustable telescopic inclined support B includes an internal threaded connecting tube B, a screw rod C and a screw rod D, one end of the screw rod C is hinged to the hinge seat C on the lower connecting plate, the other end of the screw rod C is threadedly connected to the internal threaded connecting tube B, the other end of the internal threaded connecting tube B is threadedly connected to the screw rod D, the other end of the screw rod D is hinged to the hinge seat D at the bottom of the beam, and the threads of the screw rods C and D have opposite rotation directions.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The adjustable splicing structure of the steel structure described in the utility model is provided with a crossbeam connector which is adjustably installed on the guide column so that the distance between the crossbeam connector and the lower connecting plate can be adjusted, which can assist in fine-tuning the height position of the crossbeam and effectively improve the adaptability when connecting the steel structure.

[0022] The adjustable splicing structure of the steel structure described in the utility model, after the tail plate and the locking plate are disconnected, the position of the front connecting beam on the screw rod is adjusted by changing the positions of the upper nut and the lower nut, and the guide column and the outer sleeve are slidably matched to ensure the lifting and lowering adjustment while also ensuring the connection strength.

[0023] The adjustable splicing structure of the steel structure described in the utility model adjusts the telescopic inclined support A by rotating the internal threaded connecting pipe A to change the overall length of the internal threaded connecting pipe A, the screw rod A and the screw rod B to adapt to the change of the height position of the beam.

[0024] The adjustable splicing structure of the steel structure described in the utility model is provided with a first hinge seat at the end of the front connecting beam, and a second hinge seat is provided at the end of the beam. The first hinge seat and the second hinge seat are hinged by a high-strength pin shaft, which can adapt to the installation of beams at multiple angles and can be installed quickly to improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale. Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 2 for Figure 1 A partial map of

[0027] Figure 3 This is a top view of the support column;

[0028] Figure 4 It is the end view of the lower connecting ring;

[0029] Figure 5 It is the structural diagram of the long bolt hole;

[0030] Figure 6 The structure of the utility model is shown in FIG. Figure 2 ;

[0031] In the figure: 1, supporting column 2, cross beam 3, upper connecting plate 4, lower connecting plate 5, guide column 6, outer sliding sleeve 7, front connecting cross beam 8, rear connecting cross beam 9, tail plate 10, locking plate 11, connecting end plate 12, screw 13, upper nut 14, lower nut 15, connecting bolt 16, long bolt hole 17, locking nut 18, internal thread connecting pipe A 19, screw A 20, screw B 21, articulated seat A 22, articulated seat B 23, first articulated seat 24, second articulated seat 25, supporting tube 26, upper connecting ring 27, lower connecting ring 28, arc-shaped long hole. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0033] Embodiment 1, as Figure 1-2 As shown, the adjustable splicing structure of a steel structure comprises an upper connecting plate 3 and a lower connecting plate 4 which are parallel to each other and spaced apart, the lower connecting plate 4 being installed on the top of a supporting column 1, a guide column 5 being arranged between the upper connecting plate 3 and the lower connecting plate 4, a crossbeam connector being adjustable in position on the guide column 5 so that the distance between the crossbeam connector and the lower connecting plate 4 can be adjusted, and the crossbeam 2 is connected to the crossbeam connector.

[0034] In the prior art, the connection of steel structure beams is usually fixed by welding, which is cumbersome to operate, cannot be quickly installed, has low work efficiency, and cannot adjust the height of the steel structure beam after welding, which has low applicability. The present application has a beam connector installed on the guide column 5 in an adjustable position, so that the distance between the beam connector and the lower connecting plate 4 can be adjusted, which can assist in fine-tuning the height position of the beam 2, and effectively improve the adaptability of the steel structure when connecting.

[0035] Embodiment 2, as Figure 1-5 As shown, the adjustable splicing structure of a steel structure comprises an upper connecting plate 3 and a lower connecting plate 4 which are parallel to each other and spaced apart, the lower connecting plate 4 being installed on the top of a supporting column 1, a guide column 5 being arranged between the upper connecting plate 3 and the lower connecting plate 4, a crossbeam connector being adjustable in position on the guide column 5 so that the distance between the crossbeam connector and the lower connecting plate 4 can be adjusted, and the crossbeam 2 is connected to the crossbeam connector.

[0036] Furthermore, the beam connecting member includes an outer sleeve 6 which is sleeved on the outside of the guide column 5 and slidably cooperates with the guide column 5. A front connecting beam 7 and a rear connecting beam 8 are symmetrically arranged on both sides of the outer sleeve 6. The other ends of the front connecting beam 7 and the rear connecting beam 8 are respectively welded with connecting end plates 11 and tail plates 9. A locking plate 10 and a screw 12 which are parallel to the guide column 5 are also arranged between the upper connecting plate 3 and the lower connecting plate 4. The screw 12 passes through the front connecting beam 7, and an upper nut 13 and a lower nut 14 are respectively threadedly connected to the screw 12 on both sides of the front connecting beam 7. The tail plate 9 and the locking plate 10 are detachably connected.

[0037] After the tail plate 9 and the locking plate 10 are disconnected, the position of the front connecting beam 7 on the screw 12 is adjusted by changing the position of the upper nut 13 and the lower nut 14. The guide column 5 and the outer sleeve 6 are slidably matched to ensure the lifting adjustment while also ensuring the connection strength. After the front connecting beam 7 is adjusted into place, the tail plate 9 and the locking plate 10 are re-fixed, and the beam 2 is fixed to the front connecting beam 7 at the same time.

[0038] Furthermore, the tail plate 9 is a rectangular plate, and a connecting bolt 15 is provided at each of the four corners. The locking plate 10 is provided with two spaced apart long bolt holes 16 along its length direction. The connecting bolt 15 passes through the corresponding long bolt holes 16 and is threadedly connected with the locking nut 17 to fix the tail plate 9 to the locking plate 10. This can ensure lifting adjustment and achieve stable connection.

[0039] Furthermore, the lower connecting plate 4 is installed on the top of the supporting column 1 through a rotation adjustment mechanism, and the rotation adjustment mechanism includes a supporting tube 25 connected to the lower connecting plate 4, and the bottom end of the supporting tube 25 is provided with an upper connecting ring 26, the upper end of the supporting column 1 is inserted into the supporting tube 25, and a lower connecting ring 27 cooperating with the upper connecting ring 26 is provided at the top of the supporting column 1, the cross-sections of the supporting column 1 and the supporting tube 25 are both circular, and the outer diameter of the supporting column 1 is smaller than the inner diameter of the supporting tube 25, so that the supporting column 1 and the supporting tube 25 can rotate relative to each other around their center lines; the upper connecting ring 26 and the lower connecting ring 27 are both provided with a plurality of groups of arc-shaped long holes, and the connecting bolts B penetrate the corresponding arc-shaped long holes to connect the lower connecting ring and the upper connecting ring together, and by providing a plurality of groups of arc-shaped long holes, the supporting column 1 and the supporting tube 25 can be rotated relative to each other, and when they reach the required position, they are fixed by the connecting bolts B. It can not only assist in fine-tuning the height position of the crossbeam 2, but also realize the relative rotation of the support column 1 and the support tube 25. When the required position is reached, it is fixed by the connecting bolt B.

[0040] Furthermore, the four groups of arc-shaped long strip holes 28 on the lower connecting ring 27 and the upper connecting ring 26 are arranged around the same vertical center line and the angle between two adjacent ones is 90 degrees.

[0041] Furthermore, a first connecting flange is provided at the end of the front connecting crossbeam 7, a second connecting flange is provided at the end of the crossbeam 2, the first connecting flange and the second connecting flange are connected by high-strength bolts, and an adjustable telescopic oblique support A is installed between the lower connecting plate 4 and the crossbeam 2, which further supports the crossbeam 2.

[0042] Furthermore, the adjustable telescopic inclined support A includes an internal threaded connection tube A18, a screw rod A19 and a screw rod B20, one end of the screw rod A19 is hinged to a hinge seat A21 on the lower connection plate 4, the other end of the screw rod A19 is threadedly connected to the internal threaded connection tube A18, the other end of the internal threaded connection tube A18 is threadedly connected to the screw rod B20, the other end of the screw rod B20 is hinged to a hinge seat B22 at the bottom of the beam 2, and the screw rods A19 and B20 have opposite thread rotation directions. By rotating the internal threaded connection tube A18, the overall length of the internal threaded connection tube A18, the screw rod A19 and the screw rod B20 is changed to adapt to the change in the height position of the beam 2.

[0043] Embodiment 3, as Figure 6 As shown, the adjustable splicing structure of a steel structure comprises an upper connecting plate 3 and a lower connecting plate 4 which are parallel to each other and spaced apart, the lower connecting plate 4 being installed on the top of a supporting column 1, a guide column 5 being arranged between the upper connecting plate 3 and the lower connecting plate 4, a crossbeam connector being adjustable in position on the guide column 5 so that the distance between the crossbeam connector and the lower connecting plate 4 can be adjusted, and the crossbeam 2 is connected to the crossbeam connector.

[0044] Furthermore, the beam connecting member includes an outer sleeve 6 which is sleeved on the outside of the guide column 5 and slidably cooperates with the guide column 5. A front connecting beam 7 and a rear connecting beam 8 are symmetrically arranged on both sides of the outer sleeve 6. The other ends of the front connecting beam 7 and the rear connecting beam 8 are respectively welded with connecting end plates 11 and tail plates 9. A locking plate 10 and a screw 12 which are parallel to the guide column 5 are also arranged between the upper connecting plate 3 and the lower connecting plate 4. The screw 12 passes through the front connecting beam 7, and an upper nut 13 and a lower nut 14 are respectively threadedly connected to the screw 12 on both sides of the front connecting beam 7. The tail plate 9 and the locking plate 10 are detachably connected.

[0045] After the tail plate 9 and the locking plate 10 are disconnected, the position of the front connecting beam 7 on the screw 12 is adjusted by changing the position of the upper nut 13 and the lower nut 14. The guide column 5 and the outer sleeve 6 are slidably matched to ensure the lifting adjustment while also ensuring the connection strength. After the front connecting beam 7 is adjusted into place, the tail plate 9 and the locking plate 10 are re-fixed, and the beam 2 is fixed to the front connecting beam 7 at the same time.

[0046] Furthermore, the tail plate 9 is a rectangular plate, and a connecting bolt 15 is provided at each of the four corners. The locking plate 10 is provided with two spaced apart long bolt holes 16 along its length direction. The connecting bolt 15 passes through the corresponding long bolt holes 16 and is threadedly connected with the locking nut 17 to fix the tail plate 9 to the locking plate 10. This can ensure lifting adjustment and achieve stable connection.

[0047] Furthermore, the lower connecting plate 4 is installed on the top of the supporting column 1 through a rotation adjustment mechanism, and the rotation adjustment mechanism includes a supporting tube 25 connected to the lower connecting plate 4, and the bottom end of the supporting tube 25 is provided with an upper connecting ring 26, the upper end of the supporting column 1 is inserted into the supporting tube 25, and a lower connecting ring 27 cooperating with the upper connecting ring 26 is provided at the top of the supporting column 1, the cross-sections of the supporting column 1 and the supporting tube 25 are both circular, and the outer diameter of the supporting column 1 is smaller than the inner diameter of the supporting tube 25, so that the supporting column 1 and the supporting tube 25 can rotate relative to each other around their center lines; the upper connecting ring 26 and the lower connecting ring 27 are both provided with a plurality of groups of arc-shaped long holes, and the connecting bolts B penetrate the corresponding arc-shaped long holes to connect the lower connecting ring and the upper connecting ring together, and by providing a plurality of groups of arc-shaped long holes, the supporting column 1 and the supporting tube 25 can be rotated relative to each other, and when they reach the required position, they are fixed by the connecting bolts B. It can not only assist in fine-tuning the height position of the crossbeam 2, but also realize the relative rotation of the support column 1 and the support tube 25. When the required position is reached, it is fixed by the connecting bolt B.

[0048] Furthermore, the four groups of arc-shaped long strip holes 28 on the lower connecting ring 27 and the upper connecting ring 26 are arranged around the same vertical center line and the angle between two adjacent ones is 90 degrees.

[0049] Furthermore, a first hinge seat 23 is provided at the end of the front connecting crossbeam 7, a second hinge seat is provided at the end of the crossbeam 2, the first hinge seat and the second hinge seat 24 are hinged by a high-strength pin shaft, an adjustable telescopic oblique support B is installed between the lower connecting plate 4 and the crossbeam 2, and an adjustable telescopic oblique support C is installed between the upper connecting plate 3 and the crossbeam 2. It can adapt to the installation of the crossbeam 2 at multiple angles, can be installed quickly, and improve work efficiency.

[0050] Furthermore, the adjustable telescopic inclined support B includes an internal threaded connecting tube B, a screw rod C and a screw rod D, one end of the screw rod C is hinged to the hinge seat C on the lower connecting plate 4, the other end of the screw rod C is threadedly connected to the internal threaded connecting tube B, the other end of the internal threaded connecting tube B is threadedly connected to the screw rod D, the other end of the screw rod D is hinged to the hinge seat D at the bottom of the beam 2, and the thread rotation directions of the screw rods C and D are opposite.

[0051] The adjustable splicing structure of the steel structure described in the utility model is provided with a crossbeam connector which is adjustably installed on the guide column so that the distance between the crossbeam connector and the lower connecting plate can be adjusted, which can assist in fine-tuning the height position of the crossbeam and effectively improve the adaptability when connecting the steel structure.

[0052] The adjustable splicing structure of the steel structure described in the utility model, after the tail plate and the locking plate are disconnected, the position of the front connecting beam on the screw rod is adjusted by changing the positions of the upper nut and the lower nut, and the guide column and the outer sleeve are slidably matched to ensure the lifting and lowering adjustment while also ensuring the connection strength.

[0053] The adjustable splicing structure of the steel structure described in the utility model adjusts the telescopic inclined support A by rotating the internal threaded connecting pipe A to change the overall length of the internal threaded connecting pipe A, the screw rod A and the screw rod B to adapt to the change of the height position of the beam.

[0054] The adjustable splicing structure of the steel structure described in the utility model is provided with a first hinge seat at the end of the front connecting beam, and a second hinge seat is provided at the end of the beam. The first hinge seat and the second hinge seat are hinged by a high-strength pin shaft, which can adapt to the installation of beams at multiple angles and can be installed quickly to improve work efficiency.

[0055] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An adjustable splicing structure of a steel structure, characterized in that: It comprises an upper connecting plate and a lower connecting plate which are parallel to each other and spaced apart. The lower connecting plate is installed on the top of a supporting column. A guide column is arranged between the upper connecting plate and the lower connecting plate. A crossbeam connecting piece is installed on the guide column in an adjustable position so that the distance between the crossbeam connecting piece and the lower connecting plate can be adjusted. The crossbeams are connected to the crossbeam connecting piece.

2. The adjustable splicing structure of the steel structure according to claim 1, characterized in that: The crossbeam connecting member includes an outer sliding sleeve that is sleeved on the outside of the guide column and slidably cooperates with the guide column. A front connecting crossbeam and a rear connecting crossbeam are symmetrically arranged on both sides of the outer sliding sleeve. The other ends of the front connecting crossbeam and the rear connecting crossbeam are respectively welded with connecting end plates and tail plates. A locking plate and a screw rod that are parallel to the guide column are also arranged between the upper connecting plate and the lower connecting plate. The screw rod passes through the front connecting crossbeam, and an upper nut and a lower nut are respectively threadedly connected to the screw rods on both sides of the front connecting crossbeam. The tail plate and the locking plate are detachably connected.

3. The adjustable splicing structure of the steel structure according to claim 2, characterized in that: The tail plate is a rectangular plate, and a connecting bolt is respectively arranged at the four corners. The locking plate is provided with two spaced-apart long bolt holes along its length direction. The connecting bolts penetrate the corresponding long bolt holes and are threadedly connected with the locking nuts to fix the tail plate on the locking plate.

4. The adjustable splicing structure of the steel structure according to claim 3, characterized in that: The lower connecting plate is installed on the top of the supporting column through a rotating adjustment mechanism, and the rotating adjustment mechanism includes a supporting tube connected to the lower connecting plate, an upper connecting ring is provided at the bottom end of the supporting tube, the upper end of the supporting column is inserted into the supporting tube, and a lower connecting ring cooperating with the upper connecting ring is provided at the top end of the supporting column, the cross-sections of the supporting column and the supporting tube are both circular, the outer diameter of the supporting column is smaller than the inner diameter of the supporting tube, so that the supporting column and the supporting tube can rotate relative to each other around their center lines; a plurality of groups of arc-shaped long strip holes are provided on the upper connecting ring and the lower connecting ring, and connecting bolts B penetrate the corresponding arc-shaped long strip holes to connect the lower connecting ring and the upper connecting ring together.

5. The adjustable splicing structure of the steel structure according to claim 4, characterized in that: A first connecting flange is provided at the end of the front connecting crossbeam, and a second connecting flange is provided at the end of the crossbeam. The first connecting flange and the second connecting flange are connected by high-strength bolts, and an adjustable telescopic inclined support A is installed between the lower connecting plate and the crossbeam.

6. The adjustable splicing structure of the steel structure according to claim 5, characterized in that: The adjustable telescopic oblique support A includes an internal threaded connecting tube A, a screw rod A and a screw rod B. One end of the screw rod A is hinged to a hinged seat A on a lower connecting plate, and the other end of the screw rod A is threadedly connected to the internal threaded connecting tube A. The other end of the internal threaded connecting tube A is threadedly connected to the screw rod B. The other end of the screw rod B is hinged to a hinged seat B at the bottom of the beam. The threads of the screw rods A and B have opposite rotation directions.

7. The adjustable splicing structure of the steel structure according to claim 4, characterized in that: A first hinge seat is provided at the end of the front connecting crossbeam, and a second hinge seat is provided at the end of the crossbeam. The first hinge seat and the second hinge seat are hinged by a high-strength pin shaft. An adjustable telescopic inclined support B is installed between the lower connecting plate and the crossbeam, and an adjustable telescopic inclined support C is installed between the upper connecting plate and the crossbeam.

8. The adjustable splicing structure of the steel structure according to claim 7, characterized in that: The adjustable telescopic oblique support B includes an internal threaded connecting tube B, a screw rod C and a screw rod D. One end of the screw rod C is hinged to the hinge seat C on the lower connecting plate, and the other end of the screw rod C is threadedly connected to the internal threaded connecting tube B. The other end of the internal threaded connecting tube B is threadedly connected to the screw rod D. The other end of the screw rod D is hinged to the hinge seat D at the bottom of the beam. The threads of the screw rods C and D have opposite rotation directions.

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