House building assembly type cantilever beam

Abstract

The invention relates to the technical field of housing construction, and particularly discloses a housing construction assembly type cantilever beam which comprises a plurality of splicing beams, and the two ends of each splicing beam are provided with a first clamping structure and a second clamping structure correspondingly; the first clamping structure comprises a steel pipe and a mounting seat, a mounting groove is formed in the mounting seat, the second clamping structure also comprises a steel pipe and a mounting seat, and a mounting groove is also formed in the mounting seat; the second clamping structures and the first clamping structures are in central symmetry along the splicing beams, so that the steel pipe of the second clamping structure of the first splicing beam is clamped with the mounting groove of the first clamping structure of the second splicing beam, and the mounting groove of the second clamping structure of the first splicing beam is clamped with the steel pipe of the first clamping structure of the second splicing beam; and clamping connection of the first splicing beam and the second splicing beam is completed. The connecting position of the assembly type suspension beam has high connecting strength, so that the bearing capacity of the assembly type suspension beam is high, and the problem that in the background technology, an existing assembly type suspension beam cannot bear large weight is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to an assembled cantilever beam for building construction. Background Art

[0002] Overhang beams are the primary structure in wooden buildings that bear the weight of the roof. They come in two types: one-piece and prefabricated. One-piece beams must be cut to the desired length at the factory according to design drawings, making them less adaptable. Prefabricated beams, on the other hand, are manufactured into modular structures that are assembled at the installation site based on actual needs. Once assembled, they can be used in wooden building construction. Compared to one-piece beams, they offer greater adaptability, can be prefabricated, and assembled to the desired length based on the current installation situation. They also offer the advantage of ease of transportation.

[0003] The wooden assembled suspension beams in the prior art have the problem that the joints of the suspension beams are relatively fragile and cannot bear a large weight because the suspension beams are segmented. Summary of the Invention

[0004] The purpose of the present invention is to provide a prefabricated cantilever beam for building construction, wherein the connection of the prefabricated cantilever beam has a high connection strength, so that the load-bearing capacity of the present invention is strong, thereby solving the problem in the background technology that the existing prefabricated cantilever beam cannot bear a large weight.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A prefabricated cantilever beam for building construction comprises a plurality of spliced beams, with a first clamping structure and a second clamping structure respectively installed at both ends of the spliced beams; the first clamping structure comprises a steel pipe and a mounting seat, with a mounting groove provided in the mounting seat, and the second clamping structure also comprises a steel pipe and a mounting seat, with a mounting groove also provided in the mounting seat; the second clamping structure is symmetrical with the first clamping structure along the center of the spliced beam, so that the steel pipe of the second clamping structure of the first spliced beam is clamped with the mounting groove of the first clamping structure of the second spliced beam, and the mounting groove of the second clamping structure of the first spliced beam is clamped with the steel pipe of the first clamping structure of the second spliced beam, thereby completing the clamping of the first spliced beam and the second spliced beam.

[0006] Furthermore, the first clamping structure further includes a fixing plate; the second clamping structure also includes a fixing plate, and the fixing plate is integrally formed with the splicing beam and the mounting seat.

[0007] Furthermore, the rear end of the steel pipe of the first clamping structure is connected to the installation slot of the second clamping structure, and the rear end of the steel pipe of the second clamping structure is connected to the installation slot of the first clamping structure; the front end of the steel pipe is installed with a forward-set wedge-shaped clip through a connecting plate, and the rear end of the steel pipe is installed with a clip slot, and the wedge-shaped clip is used to clip the clip slot.

[0008] Furthermore, a thimble is installed at the front end of the steel pipe, and a first liquid bag is installed at the rear end of the steel pipe, and glue is filled in the first liquid bag; when the first spliced beam is clamped with the second spliced beam, the steel pipe of the first clamping structure of the second spliced beam is installed into the installation groove of the second clamping structure of the first spliced beam, and the thimble at the front end of the steel pipe of the second spliced beam pierces the first liquid bag at the rear end of the steel pipe of the first spliced beam, and the glue leaks out of the first liquid bag, so that the steel pipe of the second spliced beam sticks to the steel pipe of the first spliced beam.

[0009] Furthermore, a plurality of air holes are provided on the side of the steel pipe, and an anthelmintic is provided inside the steel pipe. The anthelmintic is emitted to the outside of the steel pipe through the air holes and diffused in the spliced beam.

[0010] Furthermore, the steel pipe is a square pipe, and the mounting groove is a square groove; the air hole is installed on a pair of side surfaces of the steel pipe, and a plurality of small holes are installed on the other pair of side surfaces of the steel pipe; it also includes a water absorption structure, and the water absorption structure includes a pair of oppositely arranged baffles, and the upper and lower sides of the baffles are respectively installed with magnet blocks, which are used to magnetically absorb the upper and lower sides of the baffles to the inner wall of the steel pipe; silicone is installed on the outside of the baffle, and a protrusion is provided on the outside of the silicone, and the protrusion passes through the small hole to make the silicone contact with the splicing beam; the inner sides of the two baffles are respectively provided with fixed blocks, and slots are provided in the fixed blocks; it also includes an arc-shaped elastic plate, and the two ends of the arc-shaped elastic plate are respectively inserted into the slots of the two baffles, and the two baffles are kept away from each other by the elastic force of the arc-shaped elastic plate.

[0011] Furthermore, top plates are respectively installed at both ends of the arc-shaped elastic plate, and grip grooves are opened on the top plates for squeezing the arc-shaped elastic plate.

[0012] Furthermore, a groove is provided at the bottom of the spliced beam, and an elastic guide plate is provided in the groove. The elastic guide plate has an arc-shaped structure, and the arc-shaped opening of the elastic guide plate is arranged toward the outside of the groove; a through hole is provided at the top of the elastic guide plate, and a second liquid bag is installed at the through hole of the elastic guide plate; a needle is provided at the bottom of the groove, and the needle is used to pierce the second liquid bag and embed into the column.

[0013] Furthermore, it also includes a connecting seat, one end of which is provided with a third connecting structure, the third connecting structure also includes a steel pipe and a mounting seat, the arrangement of the third connecting structure is the same as the first connecting structure and the second connecting structure, and the third connecting structure is used to clamp the first connecting structure or the second connecting structure; the other end of the connecting seat is a flat end face; the top and bottom of the connecting seat are provided with fixing grooves, and the fixing grooves are used for inserting the columns.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The first clamping structure is symmetrical to the second clamping structure. The fixing plate of the second clamping structure in the first spliced beam will be close to the mounting seat of the first clamping structure in the second spliced beam. Screws are embedded from the side of the fixing plate to fix the fixing plate and the mounting seat 3. This can easily and quickly increase the connection strength between the spliced beams.

[0015] 2. A connecting plate is fixedly installed on the inner wall of the front end of the steel pipe. The connecting plate extends forward and is fixedly connected to a wedge-shaped clip. The wedge-shaped clip is wider than the connecting plate. The connecting plate is close to the inner wall of the steel pipe, so a part of the wedge-shaped clip is outside the steel pipe channel. When it is clamped forward to the rear end of another steel pipe, the connecting plate is slightly deformed by squeezing and can move toward the rear end of the other steel pipe until the wedge-shaped clip is clamped into the slot and the connecting plate recovers its deformation to complete the clamping.

[0016] 3. The two connection methods, the wedge-shaped buckle snap-in slot and the ejector pin piercing the first fluid sac, are not simply superimposed, but rather complement each other. The wedge-shaped buckle snap-in slot secures the relative position of the spliced beams, preventing relative displacement during the curing of the metal glue. Once the metal glue solidifies, it compensates for the insufficient connection strength caused by the wedge-shaped buckle snap-in slot.

[0017] 4. When the tenon drives the elastic guide plate to be inserted into the groove, the needle at the bottom of the groove will pass through the through hole to pierce the second liquid bag, causing the glue in the second liquid bag to flow out. After the tenon is completely inserted into the groove, the needle will also be embedded in the tenon, further strengthening the fixation between the splicing beams of the column, so that looseness and shaking will not occur between the splicing beams and the column, thereby ensuring the stability of the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the spliced beam.

[0019] Figure 2 This is a cross-sectional view of the joint of two spliced beams.

[0020] Figure 3 for Figure 2 Enlarged view of point A.

[0021] Figure 4 This is a cross-sectional view of the joint of two spliced beams.

[0022] Figure 5 for Figure 4 Enlarged view of point B.

[0023] Figure 6 Schematic diagram of water absorption structure.

[0024] Figure 7 This is a cross-sectional view of the groove at the bottom of the spliced beam.

[0025] Figure 8This is the structural diagram of the connection seat.

[0026] The meanings of the numbers in the figure are: 1-splicing beam, 2-steel pipe, 3-mounting seat, 31-fixing plate, 4-mounting groove, 5-connecting plate, 6-wedge-shaped buckle, 7-slot, 8-thimble, 9-first liquid capsule, 10-small hole, 11-baffle, 12-silicone, 13-bump, 14-magnet block, 15-fixing block, 16-slot, 17-arc-shaped elastic plate, 18-top plate, 19-grip groove, 20-air hole, 21-anthelmintic, 22-groove, 23-elastic guide plate, 24-second liquid capsule, 25-puncture needle, 26-through hole, 27-connecting seat, 28-fixing groove. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0028] like Figure 1 As shown, a prefabricated cantilever beam for building construction includes multiple spliced beams 1, and a first clamping structure and a second clamping structure are respectively installed at both ends of the spliced beam 1; the first clamping structure includes a steel pipe 2 and a mounting seat 3, and a mounting groove 4 is provided in the mounting seat 3, and the second clamping structure also includes a steel pipe 2 and a mounting seat 3, and a mounting groove 4 is also provided in the mounting seat 3; the second clamping structure is symmetrical with the first clamping structure along the center of the spliced beam 1, so that the steel pipe 2 of the second clamping structure of the first spliced beam 1 is clamped with the mounting groove 4 of the first clamping structure of the second spliced beam 1, and the mounting groove of the second clamping structure of the first spliced beam 1 is clamped with the steel pipe 2 of the first clamping structure of the second spliced beam 1, completing the clamping of the first spliced beam 1 and the second spliced beam 1.

[0029] The two ends of the spliced beam 1 of the present invention are respectively equipped with a first clamping structure and a second clamping structure, and the first clamping structure and the second clamping structure are symmetrical along the center of the spliced beam 1. When the spliced beams 1 need to be spliced, the second clamping structure of the first spliced beam 1 is clamped with the first clamping structure of the second spliced beam 1, and the second clamping structure of the second spliced beam 1 is clamped with the first clamping structure of the third spliced beam 1, and so on. The number of spliced beams 1 to be spliced to complete the cantilever beam is determined according to the length of the final cantilever beam.

[0030] Furthermore, the first clamping structure also includes a fixing plate 31; the second clamping structure also includes a fixing plate 31, and the fixing plate 31 is integrally formed with the splicing beam 1 and the mounting seat 3. The fixing plate 31 is provided to ensure that the height of the mounting seat 3 in the first clamping structure is lower than the height of the splicing beam 1, leaving space at the position of the first clamping structure so that the fixing plate 31 in the second clamping structure can be fully clamped with the space left in the first clamping structure, thereby making the cantilever beam flat after clamping. The setting of the fixing plate 31 is to facilitate auxiliary fixation, such as Figure 1 In the structure shown, since the first clamping structure is centrally symmetrical with the second clamping structure, the fixing plate 31 of the second clamping structure in the first spliced beam 1 will be in close contact with the mounting seat 3 of the first clamping structure in the second spliced beam 1. Screws are embedded from the side of the fixing plate 31 to fix the fixing plate 31 to the mounting seat 3, which can easily and quickly increase the connection strength between the spliced beams 1.

[0031] like Figure 2 As shown, the rear end of the steel pipe 2 of the first clamping structure is connected to the mounting slot 4 of the second clamping structure, and the rear end of the steel pipe 2 of the second clamping structure is connected to the mounting slot 4 of the first clamping structure. The front end of the steel pipe 2 is installed with a forward-facing wedge-shaped clip 6 through a connecting plate 5. The rear end of the steel pipe 2 is installed with a clip slot 7, and the wedge-shaped clip 6 is used to clip into the clip slot 7. A connecting plate 5 is fixedly installed on the inner wall of the front end of the steel pipe 2. The connecting plate 5 extends forward and is fixedly connected to the wedge-shaped clip 6. The wedge-shaped clip 6 is wider than the connecting plate 5. The connecting plate 5 is close to the inner wall of the steel pipe 2, so a portion of the wedge-shaped clip 6 is outside the channel of the steel pipe 2. When the connecting plate 5 is forwardly clipped to the rear end of the other steel pipe 2, it is squeezed to slightly deform and move toward the rear end of the other steel pipe 2 until the wedge-shaped clip 6 is clipped into the clip slot 7. The connecting plate 5 recovers its deformation and the clip is completed.

[0032] like Figure 3 、 Figure 4As shown, further, a thimble 8 is installed at the front end of the steel pipe 2, and a first liquid bag 9 is installed at the rear end of the steel pipe 2, and the first liquid bag 9 is filled with glue; when the first spliced beam 1 is clamped with the second spliced beam 1, the steel pipe 2 of the first clamping structure of the second spliced beam 1 is installed into the mounting groove 4 of the second clamping structure of the first spliced beam 1, and the thimble 8 at the front end of the steel pipe 2 of the second spliced beam 1 pierces the first liquid bag 9 at the rear end of the steel pipe 2 of the first spliced beam 1, and the first liquid bag 9 leaks glue, so that the steel pipe 2 of the second spliced beam 1 is adhered to the steel pipe 2 of the first spliced beam 1. The mounting groove 4 and the steel pipe 2 are sealed and there is a lack of operating space inside after the splicing is completed. Therefore, after conventional clamping, the only way to increase the connection strength is to add fixation on the outside of the spliced beam 1. The present invention is provided with a ejector pin 8 and a first liquid capsule 9. The ejector pin 8 is used to pierce the first liquid capsule 9 to allow the glue to leak out, thereby completing the fixation from the inside and forming a tight connection. The action of triggering the ejector pin 8 to pierce the first liquid capsule 9 is to extend the steel pipe 2 into the mounting groove 4, which is the same as the action of the wedge-shaped clip 6 clamping the clamping slot 7. The same action can complete the connection of the two clamping structures without adding additional steps. It should be noted that the glue mentioned here is a metal glue that can bond metals. Metal glue: Metal glue is a strong adhesive with ethyl cyanoacrylate as the main component. It is mainly used for rapid bonding between various metals, plastics, rubbers, accessories, electronic products, etc. It is a commonly used adhesive in this field. The common 502 glue is one of the metal glues.

[0033] Secondly, the two connection methods, namely, the wedge-shaped buckle 6 engaging the slot 7 and the ejector pin 8 piercing the first liquid sac 9, are not simply superimposed, but rather complement each other. The wedge-shaped buckle 6 engaging the slot 7 is a connection method that can quickly complete the connection and prevent the spliced beam 1 from moving relative to each other after the connection. However, its disadvantage is that the connection strength is insufficient, and the connected beam can be separated under the pull of gravity. The method in which the ejector pin 8 pierces the first liquid sac 9 and uses metal glue to fix the steel pipe 2 to the installation slot 4 has a high connection strength. After the liquid is pierced, it will penetrate into the multiple contact surfaces between the steel pipe 2 and the installation slot 4, and between the steel pipes 2 and the steel pipes 2, resulting in extremely strong connection strength after solidification. However, the disadvantage is that the metal glue requires time to solidify, and relative displacement between the spliced beams 1 during the solidification process cannot occur, which will affect the bonding effect after solidification. After the wedge-shaped buckle 6 engages the slot 7, the relative position between the spliced beams 1 is fixed, preventing relative displacement during the solidification process of the metal glue. After the metal glue solidifies, it compensates for the insufficient connection strength caused by the wedge-shaped buckle 6 engaging the slot 7.

[0034] like Figure 5As shown, further, a plurality of air holes 20 are provided on the side of the steel pipe 2, and an insect repellent 21 is provided inside the steel pipe 2. The insect repellent 21 is emitted from the steel pipe 2 through the air holes 20 and diffused into the spliced beam 1. The insect repellent 21 placed in the steel pipe 2 can diffuse into the spliced beam 1 through the air holes 20 on the side of the steel pipe 2, thereby reducing the possibility of termites infesting the wooden spliced beam 1 and preventing the spliced beam 1 from decaying due to termite infestation, thereby preventing the roof from collapsing or tilting. By providing the insect repellent 21, the probability of termite infestation is reduced, and the service life of the present invention is extended.

[0035] like Figure 6 As shown, further, the steel pipe 2 is a square pipe, and the mounting groove 4 is a square groove; the air hole 20 is installed on a pair of side surfaces of the steel pipe 2, and a plurality of small holes 10 are installed on the other pair of side surfaces of the steel pipe 2; it also includes a water absorption structure, the water absorption structure includes a pair of oppositely arranged baffles 11, and the upper and lower sides of the baffle 11 are respectively installed with magnet blocks 14, which are used to magnetically absorb the upper and lower sides of the baffle 11 to the inner wall of the steel pipe 2; silicone 12 is installed on the outside of the baffle 11, and a protrusion is provided on the outside of the silicone 12, which passes through the small hole 10 to make the silicone 12 contact with the splicing beam 1; fixing blocks 15 are respectively provided on the inner sides of the two baffles 11, and a slot 16 is provided in the fixing block 15; it also includes an arc-shaped elastic plate 17, the two ends of the arc-shaped elastic plate 17 are respectively inserted into the slots 16 of the two baffles 11, and the two baffles 11 are kept away from each other by the elastic force of the arc-shaped elastic plate 17.

[0036] A plurality of small holes 10 are installed on the other side surfaces of the steel pipe 2, and the two baffles 11 in the water absorption structure are connected by an arc-shaped elastic plate 17. After the arc-shaped elastic plate 17, before the water absorption structure is inserted into the steel pipe 2, the distance between the two baffles 11 can be compressed by squeezing the arc-shaped elastic plate 17 to facilitate insertion into the steel pipe 2. After the water absorption structure is inserted into the steel pipe 2, the arc-shaped elastic plate 17 uses elastic force to move the two baffles 11 away from each other, and then squeezes the two baffles 11 respectively and makes the silicone gel 12 stick to the inner wall of the steel pipe 2. The protrusions on the silicone gel 12 pass through the small holes 10 to make the silicone gel 12 contact with the spliced beam 1. Since the silicone gel 12 is water-absorbent, it can keep the inside of the spliced beam 1 dry and prevent long-term rainy and humid weather from causing the inside of the spliced beam 1 to rot due to moisture. The silicone gel 12 absorbs moisture, slows down the decay of the wooden beam, extends the service life of the wooden beam, and also protects the lives of the residents.

[0037] Furthermore, top plates 18 are respectively installed at both ends of the arc-shaped elastic plate 17, and grip grooves 19 are opened on the top plates 18 for squeezing the arc-shaped elastic plate 17. The top plates 18 are provided to facilitate construction workers to manually squeeze the arc-shaped elastic plate 17 and thus compress the distance between the two baffles 11.

[0038] like Figure 7As shown, the bottom of the spliced beam 1 is provided with a groove 22, within which is disposed an elastic guide plate 23. The elastic guide plate 23 is an arc-shaped structure, with the arc-shaped opening of the elastic guide plate 23 facing the outside of the groove 22. A through hole 26 is provided at the top of the elastic guide plate 23, and a second liquid sac 24 is mounted in the through hole 26 of the elastic guide plate 23. A needle 25 is provided at the bottom of the groove 22, which is used to pierce the second liquid sac 24 and insert into the column. The groove 22 is used to attach the spliced beam 1 to the column. The top of the column has a tenon, which is inserted into the groove 22 for connection. The elastic guide plate 23 supports the second liquid capsule 24 and aligns the second liquid capsule 24 with the needle 25 before the column is installed. During the installation process, the elastic guide plate 23 facilitates the alignment of the tenon and the groove 22. At the same time, after the tenon is fully inserted into the groove 22, the elastic guide plate 23 can also fill the gap between the tenon and the groove 22, making the connection between the tenon and the groove 22 tighter. When the tenon drives the elastic guide plate 23 to be inserted into the groove 22, the needle 25 at the bottom of the groove 22 will pass through the through hole 26 to puncture the second liquid capsule 24, causing the glue in the second liquid capsule 24 to flow out. After the tenon is fully inserted into the groove 22, the needle 25 will also embed into the tenon, further strengthening the fixation between the spliced beam 1 of the column, preventing loosening and shaking between the spliced beam 1 and the column, and ensuring the stability of the house.

[0039] like Figure 8 As shown, further, it includes a connecting seat 27, one end of which is provided with a third connecting structure, which also includes a steel pipe 2 and a mounting seat 3. The layout of the third connecting structure is the same as the first and second connecting structures, and the third connecting structure is used to clamp the first connecting structure or the second connecting structure. The other end of the connecting seat 27 is a flat end surface. The top and bottom of the connecting seat 27 are both provided with fixing grooves 28, which are used to insert the columns. The connecting seat 27 is used to seal the ends of the spliced beam 1 when the two ends of the spliced beam 1 no longer need to be connected to other spliced beams 1. After sealing, the steel pipes 2 at both ends of the spliced beam 1 will not be exposed to the air, preventing oxidation. The top and bottom of the connecting seat 27 are both provided with fixing grooves 28. The purpose is: the connecting seat 27 in the figure can be directly connected to the first clamping structure, and the fixing groove 28 at the bottom is used to complete the fixation with the column. When the connecting seat 27 needs to be clamped with the second clamping structure, it needs to be flipped over before it can be clamped with the second clamping structure. At this time, the fixing groove 28 at the top of the figure needs to be used to complete the fixation with the column.

[0040] The terms "connection" and "fixation" appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0041] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated cantilever beam for building construction, characterized in that: It comprises a plurality of spliced beams (1), wherein a first clamping structure and a second clamping structure are respectively installed at both ends of the spliced beams (1); The first clamping structure includes a steel pipe (2) and a mounting seat (3), wherein a mounting groove (4) is provided in the mounting seat (3); the second clamping structure also includes a steel pipe (2) and a mounting seat (3), wherein a mounting groove (4) is also provided in the mounting seat (3); The second clamping structure and the first clamping structure are symmetrical along the center of the spliced beam (1), so that the steel pipe (2) of the second clamping structure of the first spliced beam (1) is clamped with the installation groove (4) of the first clamping structure of the second spliced beam (1), and the installation groove of the second clamping structure of the first spliced beam (1) is clamped with the steel pipe (2) of the first clamping structure of the second spliced beam (1), thereby completing the clamping of the first spliced beam (1) and the second spliced beam (1).

2. The assembled cantilever beam for building construction according to claim 1, characterized in that: The first clamping structure further includes a fixing plate (31); the second clamping structure also includes a fixing plate (31), and the fixing plate (31) is integrally formed with the splicing beam (1) and the mounting seat (3).

3. The assembled cantilever beam for building construction according to claim 1, characterized in that: The rear end of the steel pipe (2) of the first clamping structure is in communication with the mounting groove (4) of the second clamping structure, and the rear end of the steel pipe (2) of the second clamping structure is in communication with the mounting groove (4) of the first clamping structure; The front end of the steel pipe (2) is provided with a forwardly arranged wedge-shaped clip (6) via a connecting plate (5), and the rear end of the steel pipe (2) is provided with a clip groove (7), and the wedge-shaped clip groove (6) is used for clipping the clip groove (7).

4. The assembled cantilever beam for building construction according to claim 3, characterized in that: The front end of the steel pipe (2) is also provided with a thimble (8), and the rear end of the steel pipe (2) is provided with a first liquid capsule (9), wherein the first liquid capsule (9) is filled with glue; When the first spliced beam (1) is clamped with the second spliced beam (1), the steel pipe (2) of the first clamping structure of the second spliced beam (1) is installed in the installation groove (4) of the second clamping structure of the first spliced beam (1), and the ejector pin (8) at the front end of the steel pipe (2) of the second spliced beam (1) pierces the first liquid bag (9) at the rear end of the steel pipe (2) of the first spliced beam (1), and the first liquid bag (9) leaks glue, so that the steel pipe (2) of the second spliced beam (1) is adhered to the steel pipe (2) of the first spliced beam (1).

5. The assembled cantilever beam for building construction according to claim 1, characterized in that: A plurality of air holes (20) are provided on the side of the steel pipe (2), and an anthelmintic (21) is provided inside the steel pipe (2). The anthelmintic (21) is emitted to the outside of the steel pipe (2) through the air holes (20) and dispersed in the spliced beam (1).

6. The assembled cantilever beam for building construction according to claim 5, characterized in that: The steel pipe (2) is a square pipe, and the mounting groove (4) is a square groove; The air holes (20) are installed on a pair of side surfaces of the steel pipe (2), and a plurality of small holes (10) are installed on the other pair of side surfaces of the steel pipe (2); The water absorption structure further comprises a pair of baffles (11) arranged opposite to each other, wherein magnet blocks (14) are respectively installed on the upper and lower sides of the baffles (11) for magnetically attracting the upper and lower sides of the baffles (11) to the inner wall of the steel pipe (2); silica gel (12) is installed on the outer side of the baffles (11), and a protrusion is provided on the outer side of the silica gel (12), and the protrusion passes through the small hole (10) for making the silica gel (12) contact with the splicing beam (1); a fixing block (15) is respectively provided on the inner side of the two baffles (11), and a slot (16) is provided in the fixing block (15); and an arc-shaped elastic plate (17) is further included, wherein the two ends of the arc-shaped elastic plate (17) are respectively inserted into the slots (16) of the two baffles (11), and the elastic force of the arc-shaped elastic plate (17) causes the two baffles (11) to move away from each other.

7. The assembled cantilever beam for building construction according to claim 6, characterized in that: Top plates (18) are respectively installed at both ends of the arc-shaped elastic plate (17), and a grip groove (19) is provided on the top plate (18) for squeezing the arc-shaped elastic plate (17).

8. The assembled cantilever beam for building construction according to claim 1, characterized in that: The bottom of the spliced beam (1) is provided with a groove (22), an elastic guide plate (23) is provided in the groove (22), the elastic guide plate (23) is in an arc-shaped structure, and the arc-shaped opening of the elastic guide plate (23) is arranged toward the outside of the groove (22); a through hole (26) is provided at the top of the elastic guide plate (23), and a second liquid capsule (24) is installed at the through hole (26) of the elastic guide plate (23); A puncture needle (25) is provided at the bottom of the groove (22), and the puncture needle (25) is used to pierce the second liquid capsule (24) and embed into the column.

9. The assembled cantilever beam for building construction according to claim 1, characterized in that: Also includes a connecting seat (27), A third connecting structure is provided at one end of the connecting seat (27), and the third connecting structure also includes a steel pipe (2) and a mounting seat (3). The arrangement of the third connecting structure is the same as that of the first connecting structure and the second connecting structure, and the third connecting structure is used to clamp the first connecting structure or the second connecting structure. The other end of the connecting seat (27) is a flat end surface; The top and bottom of the connecting seat (27) are both provided with fixing grooves (28), and the fixing grooves (28) are used for inserting the columns.

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