A connecting component for prefabricated buildings

Abstract

The present invention discloses a connection component for prefabricated buildings, comprising: a building column and a building beam, and a right-angle fastener fitted at the included angle between the building column and the building beam, the right-angle fastener being fixedly installed between the building column and the building beam; further comprising: a fastening groove, which is opened at the outer side position of the right-angle fastener, a first pressing member and a second pressing member are respectively snap-connected through the fastening groove at the front and rear sides above the right-angle fastener, the tops of the first pressing member and the second pressing member are overlapped with each other, the right-angle fastener, the first pressing member and the second pressing member are fixedly connected to the building column or the building beam through fixing screws, and the ends of the fixing screws are correspondingly connected with fixing nuts. This connection component for prefabricated buildings can be adaptively combined and used according to different joint structures, which is beneficial to improving the connection strength, can stably buffer, is convenient for rapid assembly, and is beneficial to improving the overall assembly construction efficiency of prefabricated buildings.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and more particularly to the technical field of connection components for prefabricated buildings, and specifically to a connection component for prefabricated buildings. Background Art

[0002] In prefabricated buildings, various building components are uniformly processed in a factory and then assembled on site. Connection components are used to fix various building components to form a building. This can greatly improve the construction efficiency of buildings, has a high cost performance, and meets the requirements of green buildings. When assembling prefabricated buildings, reliable connection components are very important;

[0003] For example, the patent with the publication number CN 113374080 B relates to a connection component for a cross beam and a structural column in a prefabricated building, including a column and a cross beam horizontally arranged at the top of the column. The cross beam is connected to the column through a first connection part. A second connection part is arranged on one side of the top of the cross beam, and support parts are arranged on both sides of the column; the support part includes a connection frame, a cylinder, and a push plate. The push plate is horizontally arranged at the center of the inner cavity of the connection frame. The cylinder is installed at one end of the connection frame, and the output end of the cylinder passes through the connection frame and is connected to the push plate through a connecting rod; through the mutual cooperation between the cylinder, the first spring, the wedge-shaped block, the second spring, and the insertion block, the wind resistance of the prefabricated building is enhanced, and it is avoided that the roof shakes too much in strong wind weather or severe convective weather, causing damage to the roof beam, thereby improving the firmness and service life of the prefabricated building;

[0004] Another example is the patent with the publication number CN 222390633 U, which relates to a node connection component for a prefabricated building, including a first connection plate arranged on the side of the column and a second connection plate located below the first connection plate. A detachable damper is arranged on the second connection plate. A cross beam is arranged between the first connection plate and the damper and is respectively fastened and connected through a number of high-strength bolts; the cross beam is arranged on each side of the column to form a node of the prefabricated building; the first connection plate and the second connection plate are respectively connected to the column through high-strength bolts, and / or the tie rod is connected to the column. This node connection component for a prefabricated building improves the connection method between the column and the cross beam, and a damper is arranged at the connection between the cross beam and the column, which can effectively reduce or even prevent plastic deformation of the cross beam and the column body, reduce the risk of damage to the column or the cross beam, and reduce the maintenance difficulty of the cross beam and the column in the later stage;

[0005] However, in combination with the actual assembly and use of the connection components for prefabricated buildings, the current connection components still have certain drawbacks, such as:

[0006] 1. A component structure that can wrap and connect the ends of structures such as beam plates and columns has a large overall self-weight and occupies a large space. When used for connection, it needs to be hoisted and fixed separately, which is not conducive to rapid assembly and improving the assembly connection efficiency.

[0007] 2. After the general connection components are assembled and used, their structural strength is not high, which is not conducive to coping with the stress changes in different directions of the building structure and cannot improve the anti-bending strength of the connection nodes.

[0008] 3. The vibration buffering ability is poor or even unable to perform vibration buffering. Some vibration buffering structures are complex, which is not conducive to rapid installation and adjustment.

[0009] 4. Generally, it can only be used for two-sided connection between beam plates and columns, and cannot be combined for connection to adapt to complex nodes, which is not conducive to improving the connection strength and cannot adapt to different nodes.

[0010] Therefore, we propose a connection component for prefabricated buildings to solve the problems mentioned above. Summary of the Invention

[0011] The purpose of the present invention is to provide a connection component for prefabricated buildings to solve the problems in the above-mentioned background technology that the current connection components are not conducive to rapid assembly, not conducive to adapting to different node combinations, unable to strengthen the overall building strength, and not conducive to improving the assembly construction efficiency of prefabricated buildings.

[0012] To achieve the above purpose, the present invention provides the following technical solution: A connection component for prefabricated buildings, including: a building column and a building beam, a right-angle fastener attached to the angle between the building column and the building beam, and the right-angle fastener is fixedly installed between the building column and the building beam.

[0013] It also includes:

[0014] A buckle groove is opened at the outer side position of the right-angle fastener. The first pressing member and the second pressing member are respectively snap-connected to the front and rear sides above the right-angle fastener through the buckle groove. The tops of the first pressing member and the second pressing member are overlapped. The right-angle fastener, the first pressing member, and the second pressing member are fixedly connected to the building column or the building beam through fixing screws, and the ends of the fixing screws are correspondingly connected with fixing nuts.

[0015] An extension fastener is overlapped and connected to the end of the right-angle fastener, and an end fastener is arranged at the outer end of the extension fastener.

[0016] Card slot, the card slots are opened inside both the right-angle fastener and the end fastener. An upper support rod or a lower support rod is connected to the inner side of the card slot. The end of the upper support rod is connected inside the fixed shell. An extrusion block is slidably installed inside the fixed shell, and the outer side of the extrusion block is in contact with the bottom surface of the upper support rod.

[0017] Card plate, the inner side of the card plate is convexly provided with a clamping block. The card plate is correspondingly clamped with the clamping groove through the clamping block. The middle part of the card plate is fixedly connected to the building column through an expansion bolt.

[0018] Preferably, the right-angle fastener, the extension fastener and the end fastener are arranged in an overlapping manner in sequence. The side edges of the overlapping parts of the right-angle fastener, the extension fastener and the end fastener are overlapped with a clamping groove. A fixing hole for inserting a fixing screw is opened in the middle of the bottom surface of the overlapping part of the right-angle fastener, the extension fastener and the end fastener. The bottoms of the right-angle fastener, the extension fastener and the end fastener are all convexly provided with reinforcing plates.

[0019] Preferably, a cross plate is arranged below the overlapping part of the ends of the first pressing piece and the second pressing piece. The cross plate is attached to the upper part of the building beam. The top end of the fixing screw sequentially passes through the right-angle fastener, the building beam, the cross plate, the first pressing piece and the second pressing piece and is connected to a fixing nut.

[0020] Preferably, an elastic gasket sleeved on the outer side of the fixing screw is arranged between the cross plate and the building beam. Both ends of the cross plate extend to the outer ends of the end fasteners.

[0021] Preferably, the outer sides of the first pressing piece and the second pressing piece are convexly provided with lugs. A cable is inserted inside the lugs. The cable is fixedly connected between the first pressing piece or the second pressing piece monomers at the outermost edges on both sides.

[0022] Preferably, a sliding rod is vertically and fixedly installed inside the fixed shell. The extrusion block is slidably connected to the outer side of the sliding rod. The side surface of the extrusion block is inclined. The top end of the extrusion block is connected with a spring sleeved on the outer side of the sliding rod.

[0023] Preferably, the bottom of the sliding rod is slidably connected with a sliding plate. A buffer gasket sleeved on the outer side of the sliding rod is arranged between the sliding plate and the extrusion block. The middle part of the bottom surface of the fixed shell is threadedly connected with an adjusting rod. The top end of the adjusting rod is in contact with the sliding plate.

[0024] Preferably, the top-end structure of the end fastener is the same as the top-end structure of the extension fastener. The end fastener can be directly overlapped with the end of the right-angle fastener.

[0025] Preferably, the end fastener can be separated from the right-angle fastener for use. A connecting plate is connected to the bottom of the separated end fastener.

[0026] Preferably, when the building column and the building beam are fixed at a right angle, the outer sides of the right-angle fasteners are fixed between the building column and the building beam through the first pressing member and the second pressing member, and a right-angle plate in a vertical structure is stacked at the bottom of the first pressing member and the second pressing member.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects: The connection component for prefabricated buildings can be combined and used adaptively according to different node structures, which is beneficial to improving the connection strength, can stably buffer, is convenient for rapid assembly, and is beneficial to improving the overall assembly construction efficiency of prefabricated buildings;

[0028] 1. In this solution, a right-angle fastener is provided. The overall structure of the right-angle fastener is in a right-angle structure. By directly fitting the right-angle fastener between, for example, a beam and a column, the right-angle fastener is engaged with the building structure, and the right-angle fastener is convenient for connecting and using node structures such as right angles, Ts, and crosses;

[0029] 2. In this solution, a buckle groove, a first pressing member, and a second pressing member are provided. The buckle groove is opened on the outer side of the right-angle fastener, which can engage the first pressing member and the second pressing member. After the ends of the first pressing member and the second pressing member are stacked, they are fixed by fixing screws and fixing nuts, which can reduce the overall self-weight of the connection component and is convenient for assembly;

[0030] 3. In this solution, a cross plate and an elastic gasket are provided. The cross plate is simultaneously engaged below the overlapping part of the first pressing member and the second pressing member, which can integrally connect all the first pressing members and the second pressing members connected above the beam body, strengthen the top connection strength, and enhance its stress resistance condition;

[0031] 4. In this solution, lugs and cables are provided. The cables are inserted through the lugs on the sides of the first pressing member and the second pressing member, and the two ends of the first pressing member and the second pressing member are limited by the cables, which can enhance the anti-bending strength of the connection component and prevent the column and the beam from bending laterally;

[0032] 5. In this solution, an extension fastener and an end fastener are provided. The building column, the extension fastener, and the end fastener can be stacked in sequence, and the side cross-sectional structures of the building column, the extension fastener, and the end fastener are the same, which can be extended for use in extra-large and extra-high prefabricated buildings to ensure the strength of the connection node structure;

[0033] 6. In this solution, an upper support rod, a lower support rod, and a fixed shell are provided. The ends of the upper support rod and the lower support rod can be directly inserted into the card slots opened inside the building column or the end fastener, and the upper support rod and the lower support rod are limited by the limiting plates at their ends. Moreover, through the extrusion block that can slide inside the fixed shell, the upper support rod and the lower support rod can be externally pushed to facilitate the support of the building column or the end fastener to ensure the assembly stability of the building column and the building beam;

[0034] 7. In this solution, a buffer gasket and an adjusting rod are provided. By screwing the adjusting rod into the bottom of the fixed shell, the adjusting rod can sequentially squeeze the sliding plate, the buffer gasket and the extrusion block, so that the extrusion block pushes the upper support rod and the lower support rod. At the same time, the buffer gasket is used for buffering during clamping;

[0035] 8. In this solution, a clamping plate, a clamping block and an expansion bolt are provided. The clamping plate can be clamped with the clamping groove on the side of the adjacent building column, extension fastener or end fastener through the clamping block, and the clamping plate can be connected and fixed through a fixing screw or an expansion bolt, so as to ensure fixed use for different node structures and improve the structural strength;

[0036] 9. In this solution, a connecting plate is provided. When used for super-large and super-high prefabricated buildings, the end fastener far from the node center can be connected to the end fastener for assembly connection, which can enhance the support and at the same time conduct overall connection to increase the overall structural strength;

[0037] 10. In this solution, a right-angle plate is provided. When the building column and the building beam are vertically fixed, through the right-angle fastener, the extension fastener and the end fastener are connected to the inner sides of the building column and the building beam. While assembling the first pressing piece and the second pressing piece, the right-angle plate in a vertical structure is connected, which is beneficial to enhancing the overall strength. Description of the Drawings

[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0039] Figure 1 is a schematic top view structure diagram of the whole invention;

[0040] Figure 2 is a schematic bottom view structure diagram of the whole invention;

[0041] Figure 3 is a schematic partial disassembled structure diagram of the whole invention Figure 1 ;

[0042] Figure 4 is a schematic partial disassembled structure diagram of the whole invention Figure 2 ;

[0043] Figure 5 is a schematic partial disassembled structure diagram of the whole invention Figure 3 ;

[0044] Figure 6 is a schematic diagram of the separated structure of the extension fastener and the end fastener of the whole invention;

[0045] Figure 7 is a schematic diagram of the partial front sectional structure of the whole invention;

[0046] Figure 8 For the present invention Figure 7 Schematic enlarged structure diagram at position A in the present invention;

[0047] Figure 9 Schematic sectional structure diagram of the assembly of the first pressing member and the second pressing member of the present invention;

[0048] Figure 10 Schematic sectional structure diagram of the interior of the fixed shell of the present invention;

[0049] Figure 11 Schematic overall top view structure diagram of the separated installation of the end fastener of the present invention;

[0050] Figure 12 Schematic overall bottom view structure diagram of the separated installation of the end fastener of the present invention;

[0051] Figure 13 Schematic installation structure diagram of the right-angle plate of the present invention.

[0052] In the figure: 1, building column; 2, building beam; 3, right-angle fastener; 4, reinforcing plate; 5, buckle groove; 6, first pressing member; 7, second pressing member; 8, fixing screw; 9, fixing nut; 10, cross plate; 11, elastic gasket; 12, ear; 13, cable; 14, extension fastener; 15, end fastener; 16, card slot; 17, upper support rod; 18, lower support rod; 19, limiting plate; 20, fixed shell; 21, sliding rod; 22, extrusion block; 23, spring; 24, sliding plate; 25, buffer gasket; 26, adjusting rod; 27, clamping plate; 28, clamping block; 29, expansion bolt; 30, connecting plate; 31, right-angle plate. Detailed implementation manners

[0053] 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, so as to fully understand the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects and implement accordingly. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0054] Please refer to Figures 1-13 , the present invention provides the following technical solutions:

[0055] A connecting component for prefabricated buildings, comprising: a building column 1, a building beam 2, a right-angle fastener 3, a reinforcing plate 4, a buckle groove 5, a first pressing member 6, a second pressing member 7, a fixing screw 8, a fixing nut 9, a transverse plate 10, an elastic gasket 11, a lug 12, a cable 13, an extension fastener 14, an end fastener 15, a card slot 16, an upper support rod 17, a lower support rod 18, a limiting plate 19, a fixing shell 20, a sliding rod 21, an extrusion block 22, a spring 23, a sliding plate 24, a buffer gasket 25, an adjusting rod 26, a clamping plate 27, a clamping block 28, an expansion bolt 29, a connecting plate 30 and a right-angle plate 31;

[0056] Wherein: The right-angle fastener 3 is attached to the included angle between the building column 1 and the building beam 2, and is fixedly installed between the right-angle fastener 3 and the building column 1 and the building beam 2. The buckle groove 5 is opened at the outer side position of the right-angle fastener 3. The first pressing member 6 and the second pressing member 7 are respectively clamped and connected to the front and rear sides above the right-angle fastener 3 through the buckle groove 5. The tops of the first pressing member 6 and the second pressing member 7 are overlapped with each other. The right-angle fastener 3, the first pressing member 6 and the second pressing member 7 are fixedly connected to the building column 1 or the building beam 2 through the fixing screw 8, and the end of the fixing screw 8 is correspondingly connected with the fixing nut 9;

[0057] Below the overlapping part of the ends of the first pressing member 6 and the second pressing member 7, there is a transverse plate 10. The transverse plate 10 is attached to the upper side of the building beam 2. The top of the fixing screw 8 sequentially passes through the right-angle fastener 3, the building beam 2, the transverse plate 10, the first pressing member 6 and the second pressing member 7 and is connected to the fixing nut 9. An elastic gasket 11 sleeved on the outer side of the fixing screw 8 is arranged between the transverse plate 10 and the building beam 2. Both ends of the transverse plate 10 extend to the outer ends of the end fastener 15.

[0058] In specific application scenarios, such as Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Figure 9 By directly attaching the right-angle fastener 3 to the building column 1 and the building beam 2, it is convenient for quick assembly and use. And by clamping the first pressing member 6 and the second pressing member 7 on the outer side of the right-angle fastener 3 to limit and fix the building column 1 and the building beam 2, the structural complexity of the overall connecting component can be reduced, which is convenient for quick assembly and use. And the bottom of the first pressing member 6 and the second pressing member 7 overlaps with the transverse plate 10. After being connected and fixed by the fixing screw 8 and the fixing nut 9, the overall strength can be guaranteed, making it form an integral body and facilitating combined use.

[0059] Wherein: The outer sides of the first pressing member 6 and the second pressing member 7 are convexly provided with lugs 12. A cable 13 is inserted into the inside of the lugs 12. The cable 13 is fixedly connected between the first pressing member 6 or the second pressing member 7 monomers at the outermost edges on both sides.

[0060] In specific application scenarios, such asFigure 1 , Figure 2 and Figure 9 In Figure 1 , Figure 2 and Figure 9 , a cable 13 is inserted through the lug 12 on the side of the first pressing member 6 and the second pressing member 7. The end of the cable 13 is welded to a structure larger than the through hole of the lug 12, so that the cable 13 is limited between the first pressing member 6 and the second pressing member 7 at both ends, which can enhance the anti-bending strength of the connecting component and avoid side bending between the column body and the beam body.

[0061] Among them: The extension fastener 14 is overlapped and connected to the end of the right-angle fastener 3. An end fastener 15 is arranged at the outer end of the extension fastener 14. The right-angle fastener 3, the extension fastener 14 and the end fastener 15 are arranged in an overlapping sequence. The side edges of the overlapping parts of the right-angle fastener 3, the extension fastener 14 and the end fastener 15 are overlapped and provided with a buckle groove 5. A fixing hole for inserting the fixing screw 8 is opened in the middle of the bottom surface of the overlapping parts of the right-angle fastener 3, the extension fastener 14 and the end fastener 15. The bottoms of the right-angle fastener 3, the extension fastener 14 and the end fastener 15 are all convexly provided with a reinforcing plate 4.

[0062] In specific application scenarios, such as Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 In Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 , the building column 1, the extension fastener 14 and the end fastener 15 can be arranged in an overlapping sequence, and the side cross-sectional structures of the building column 1, the extension fastener 14 and the end fastener 15 are the same, which can be extended for use in super-large and super-high prefabricated buildings to ensure the structural strength of the connection nodes.

[0063] Among them: The card slots 16 are opened inside both the right-angle fastener 3 and the end fastener 15. The inner side of the card slot 16 is connected with an upper support rod 17 or a lower support rod 18. The end of the upper support rod 17 is connected inside the fixed shell 20. An extrusion block 22 is slidably installed inside the fixed shell 20. The outer side surface of the extrusion block 22 is attached to the bottom surface of the upper support rod 17. A sliding rod 21 is vertically and fixedly installed inside the fixed shell 20. The extrusion block 22 is slidably connected to the outside of the sliding rod 21. The side surface of the extrusion block 22 is inclined. The top end of the extrusion block 22 is connected with a spring 23 sleeved on the outside of the sliding rod 21. The bottom of the sliding rod 21 is slidably connected with a sliding plate 24. A buffer gasket 25 sleeved on the outside of the sliding rod 21 is arranged between the sliding plate 24 and the extrusion block 22. The middle part of the bottom surface of the fixed shell 20 is threadedly connected with an adjusting rod 26. The top end of the adjusting rod 26 is attached to the sliding plate 24.

[0064] In specific application scenarios, such as Figure 7 and Figure 10In it, the upper support rod 17 and the lower support rod 18 can be directly inserted into the interior of the building column 1 or the end fastener 15. Through the insertion between the upper support rod 17, the lower support rod 18 and the fixed shell 20, the extrusion block 22 can extrude the upper support rod 17 and the lower support rod 18 outward, so that the upper support rod 17 and the lower support rod 18 are inserted into the building column 1 or the end fastener 15 for support. And by screwing in the adjusting rod 26, the slide plate 24 and the buffer gasket 25 can be extruded, so that the extrusion block 22 slides to adjust the extrusion force on the upper support rod 17 and the lower support rod 18, which is convenient for adjusting the installation. And through the elastic action of the buffer gasket 25, it can be used for buffering.

[0065] Wherein: the inner side of the clamping plate 27 is convexly provided with a clamping block 28. The clamping plate 27 is correspondingly clamped with the clamping groove 5 through the clamping block 28, and the middle part of the clamping plate 27 is fixedly connected with the building column 1 through an expansion bolt 29.

[0066] In specific application scenarios, such as Figure 3 and Figure 4 In it, the clamping plate 27 can be clamped with the clamping groove 5 on the side of the adjacent building column 1, the extension fastener 14 or the end fastener 15 through the clamping block 28, and the clamping plate 27 can be connected and fixed through the fixing screw 8 or the expansion bolt 29, so as to ensure fixed use for different node structures and improve the structural strength.

[0067] Wherein: the top structure of the end fastener 15 is the same as the top structure of the extension fastener 14. The end fastener 15 can be directly superposed with the end of the right-angle fastener 3, and the end fastener 15 can be far away from the right-angle fastener 3. A connecting plate 30 is connected to the bottom of the end fastener 15 that is far away.

[0068] In specific application scenarios, such as Figure 11 and Figure 12 In it, when used for an extra-large and extra-high prefabricated building, the end fastener 15 far from the node center can be connected to the end fastener 15 for assembly connection, which can enhance the support and at the same time conduct overall connection to increase the overall structural strength.

[0069] Wherein: when the building column 1 and the building beam 2 are fixed at a right angle, the outer sides of the right-angle fasteners 3 are both fixed between the building column 1 and the building beam 2 through the first pressing member 6 and the second pressing member 7. The bottom of the first pressing member 6 and the second pressing member 7 is superposed with a right-angle plate 31 in a vertical structure.

[0070] In specific application scenarios, such as Figure 13 In it, when the building column 1 and the building beam 2 are vertically fixed, through the right-angle fastener 3, the extension fastener 14 and the end fastener 15 are connected to the inner sides of the building column 1 and the building beam 2. While assembling the first pressing member 6 and the second pressing member 7, the right-angle plate 31 in a vertical structure is connected, which is beneficial to enhancing the overall strength.

[0071] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention; the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions rather than absolute positions.

[0072] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated herein.

[0073] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A connecting component for prefabricated buildings, comprising: Building column (1) and building beam (2), right-angle fastener (3) attached to the angle between the building column (1) and the building beam (2), and the right-angle fastener (3) is fixedly installed between the building column (1) and the building beam (2); It is characterized in that it further includes: Buckling groove (5), the buckling groove (5) is opened at the outer side position of the right-angle fastener (3), the front and rear sides above the right-angle fastener (3) are respectively snap-connected with a first pressing member (6) and a second pressing member (7) through the buckling groove (5), the tops of the first pressing member (6) and the second pressing member (7) are overlapped with each other, and the right-angle fastener (3), the first pressing member (6) and the second pressing member (7) are fixedly connected to the building column (1) or the building beam (2) through a fixing screw (8), and the end of the fixing screw (8) is correspondingly connected with a fixing nut (9); Extension fastener (14), the extension fastener (14) is overlapped and connected to the end of the right-angle fastener (3), and an end fastener (15) is arranged at the outer end of the extension fastener (14); Card slot (16), the card slot (16) is opened inside both the right-angle fastener (3) and the end fastener (15), an upper support rod (17) or a lower support rod (18) is connected to the inner side of the card slot (16), the end of the upper support rod (17) is connected to the inside of the fixing shell (20), and an extrusion block (22) is slidably installed inside the fixing shell (20), and the outer side surface of the extrusion block (22) is attached to the bottom surface of the upper support rod (17); Card plate (27), a card block (28) is convexly arranged on the inner side of the card plate (27), the card plate (27) is correspondingly snap-connected with the buckling groove (5) through the card block (28), and the middle part of the card plate (27) is fixedly connected to the building column (1) through an expansion bolt (29).

2. The connecting component for prefabricated buildings according to claim 1, wherein: The right-angle fastener (3), the extension fastener (14) and the end fastener (15) are arranged in an overlapping manner in sequence, the side edges of the overlapping parts of the right-angle fastener (3), the extension fastener (14) and the end fastener (15) are overlapped with each other, a fixing hole for the fixing screw (8) to penetrate is opened in the middle of the bottom surface of the overlapping parts of the right-angle fastener (3), the extension fastener (14) and the end fastener (15), and reinforcing plates (4) are convexly arranged at the bottoms of the right-angle fastener (3), the extension fastener (14) and the end fastener (15).

3. The connecting component for prefabricated buildings according to claim 1, characterized in that: A cross plate (10) is arranged below the overlapping part of the ends of the first pressing member (6) and the second pressing member (7), the cross plate (10) is attached to the upper side of the building beam (2), and the top end of the fixing screw (8) sequentially penetrates through the right-angle fastener (3), the building beam (2), the cross plate (10), the first pressing member (6) and the second pressing member (7) and is connected to the fixing nut (9).

4. The connection component for prefabricated buildings according to claim 3, characterized in that: An elastic gasket (11) sleeved on the outer side of the fixing screw (8) is arranged between the cross plate (10) and the building beam (2), and both ends of the cross plate (10) extend to the outer ends of the end fastener (15).

5. A connecting component for prefabricated buildings according to claim 1, characterized in that: The outer sides of the first pressing member (6) and the second pressing member (7) are convexly provided with lugs (12). A cable (13) is inserted and connected inside the lugs (12). The cable (13) is fixedly connected between the first pressing member (6) or the second pressing member (7) monomers at the outermost edges on both sides.

6. The connecting component for prefabricated buildings according to claim 1, characterized in that: A slide bar (21) is vertically and fixedly installed inside the fixed shell (20). The extrusion block (22) is slidably connected to the outer side of the slide bar (21). The side surface of the extrusion block (22) is inclined. A spring (23) sleeved on the outer side of the slide bar (21) is connected to the top end of the extrusion block (22).

7. The connection component for prefabricated buildings according to claim 6, characterized in that: A slide plate (24) is slidably connected to the bottom of the slide bar (21). A buffer gasket (25) sleeved on the outer side of the slide bar (21) is arranged between the slide plate (24) and the extrusion block (22). An adjusting rod (26) is threadedly connected to the middle of the bottom surface of the fixed shell (20). The top end of the adjusting rod (26) is in contact with the slide plate (24).

8. A connecting component for prefabricated buildings according to claim 1, characterized in that: The top end structure of the end fastener (15) is the same as the top end structure of the extension fastener (14). The end fastener (15) can be directly superposed with the end of the right-angle fastener (3).

9. The connecting component for prefabricated buildings according to claim 1, characterized in that: The end fastener (15) can be separated from the right-angle fastener (3). A connecting plate (30) is connected to the bottom of the separated end fastener (15).

10. A connecting component for prefabricated buildings according to claim 1, characterized in that: When the building column (1) and the building beam (2) are fixed at a right angle, the outer sides of the right-angle fasteners (3) are fixed to the building column (1) and the building beam (2) through the first pressing member (6) and the second pressing member (7). A right-angle plate (31) with a vertical structure is superposed at the bottom of the first pressing member (6) and the second pressing member (7).

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