Connecting device for fabricated building

Abstract

The invention provides a connecting device for a fabricated building, and relates to the technical field of connecting devices, the connecting device comprises a main connecting rod and a plurality of secondary connecting rods, the upper and lower ends of the main connecting rod and the secondary connecting rods are provided with reinforcing steel bar through holes for connecting reinforcing steel bars, rod bodies of the main connecting rod and the secondary connecting rods are provided with series connection seats, and a series connection pipe is arranged between every two series connection seats; exhaust assemblies used for exhausting gas are mounted on the upper sides of rod bodies of the main connecting rod and the secondary connecting rod, and a feeding assembly used for filling slurry is arranged on the lower side of the rod body of the main connecting rod. Slurry can be added through the feeding assembly so that the slurry can enter the main connecting rod, the auxiliary connecting rods with the required number can be connected in series through the series connection pipe, the slurry is sequentially poured into the auxiliary connecting rods, and therefore the connecting device and the reinforcing steel bars are supported. The supporting strength of the assembly type building at the connecting position can be effectively improved, and then the overall supporting strength of the assembly type building is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connection devices, and in particular to a connection device for assembled buildings. Background Art

[0002] Prefabricated buildings include assembly columns and assembly walls, and steel bars will extend from the assembly points, and then the prefabricated buildings will be combined with connecting devices. For example, patent announcement number CN212743150U is a positioning device for prefabricated assembly column steel bar sleeve connectors, which involves the installation field of steel bar sleeves, including prefabricated assembly columns and prefabricated steel bars, and also includes fixed columns and positioning steel bars. The prefabricated steel bars are provided with connecting pieces, and the prefabricated assembly columns are provided with positioning components. During on-site construction, the position of the prefabricated assembly column is limited by the positioning component, the prefabricated assembly column is placed on the fixed column, the positioning steel bars and the prefabricated steel bars are connected together by the connecting pieces, and then the construction is completed by pouring slurry.

[0003] Although the above-mentioned connecting device can align and connect the assembly columns during the connection process, after the connection is completed, the slurry can be covered on the outside of the connecting device when pouring, resulting in the connection between the connecting device and the steel bars connected to the inside being insufficient in strength relative to the outside. For this reason, the present application designs a connecting device for prefabricated buildings, which can pour slurry between the connecting device and the steel bars to improve the overall strength of the prefabricated building. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a connection device for assembled buildings, which solves the problem of insufficient support strength at the joint between the existing connection device and the steel bars.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A connection device for assembled buildings, comprising a main connecting rod and a plurality of secondary connecting rods, wherein the upper and lower ends of the main connecting rod and the secondary connecting rod are provided with steel bar through holes for connecting steel bars, the main connecting rod and the secondary connecting rod are provided with series seats on their rod bodies, and a series pipe is provided between each two series seats, exhaust assemblies for exhausting gas are installed on the upper sides of the main connecting rod and the secondary connecting rod, and a feeding assembly for injecting slurry is provided on the lower side of the main connecting rod.

[0006] Preferably, locking sleeves are provided at both ends of the series pipes, the locking sleeves are threadedly matched with adjacent series seats, and the series seats are threadedly connected to the connecting elbow and the sealing cover.

[0007] Preferably, a filling cavity is provided inside the main connecting rod and the secondary connecting rod, and a plurality of reinforcing ribs are provided on the inner wall of the filling cavity.

[0008] Preferably, guiding covers are respectively installed on the upper and lower sides of the filling cavity. A plurality of diversion grooves are formed on one side of each guiding cover. An activity groove is formed at one end of each diversion groove, and an activity rod is movably installed inside the activity groove.

[0009] Preferably, locking seats and push plates are respectively installed at both ends of the activity rod. A contraction spring is arranged between the push plate and the inner wall of the activity groove. The reinforcing bars are jointly clamped inside the plurality of locking seats.

[0010] Preferably, the feeding assembly includes a feeding pipe. The feeding pipe is fixedly installed on the lower side of the main connecting rod body. A docking socket is arranged at the opening of the feeding pipe. A limiting ring is arranged at one end of the feeding pipe. An interaction cavity is formed between the limiting ring and the docking socket, and a check baffle is arranged inside the interaction cavity.

[0011] Preferably, a check spring is fixedly installed between one side of the check baffle and the limiting ring. An activity column is fixedly installed on the other side of the check baffle, and a support wire mesh is fixedly installed at one end of the activity column.

[0012] Preferably, the exhaust assembly includes an exhaust pipe. The exhaust pipe is fixedly installed on the upper sides of the adjacent main connecting rod and secondary connecting rod bodies. A groove is formed on the inner wall of the exhaust pipe. A moving bracket is movably installed inside the groove. A connecting shaft is fixedly installed at the center of the moving bracket, and a sealing seat is fixedly installed at one end of the connecting shaft.

[0013] Preferably, a matching ring is arranged at the opening of the exhaust pipe. The matching ring is in sealed fit with the sealing seat, and a docking seat is arranged on one side of the matching ring.

[0014] Preferably, an expansion groove is formed inside the groove. A partition sliding plate is movably arranged inside the expansion groove. The partition sliding plate is fixedly installed at both ends of the moving bracket. A support spring is arranged between the moving bracket and the groove; A breathable disc is fixedly installed on the shaft body of the connecting shaft. A combined block is arranged on the outer side of the breathable disc. A combined groove is formed on the inner wall of the docking seat, and the combined block is in docking fit with the combined groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The slurry can be added through the feeding assembly so that the slurry enters the main connecting rod. Among them, a series of secondary connecting rods with the required quantity can be connected in series by using a series pipe, and the slurry is poured into each secondary connecting rod in turn, so as to realize the support between the connecting device and the steel bar. Compared with the existing connecting device, this application can effectively improve the support strength at the joint of the prefabricated building, and then improve the overall support strength of the prefabricated building. Among them, the series seat can be blocked by the sealing cover to realize the closure of the internal series space. The different specifications and sizes of the secondary connecting rods can also be arranged through the connecting elbow pipe, so as to be applicable to the assembly column materials. Through the above structure, this application can be freely combined into the required size and improve its adaptability.

[0016] 2. As the slurry gradually increases, under the action of the guiding cover, part of the slurry will be introduced into the diversion groove, and the slurry will push the push plate. When the push plate moves, it will push the movable rod, so that a plurality of movable rods move towards the steel bar. Among them, the locking seat can clamp the steel bar when the slurry pouring is completed to ensure that the subsequent solidification between the steel bar and the poured slurry will not be interfered. 3. When the spray head is taken out, the check spring supports the check baffle, so that the check baffle closes the interaction cavity again, which can effectively avoid the phenomenon of slurry backflow when the spray head is taken out, and then ensure the stability of the subsequent slurry solidification. Through the above structure, the feed pipe can be automatically closed when the pouring is completed, without manually inserting parts to block it by personnel, which not only reduces the operation process but also avoids the waste of slurry. 4. When the slurry enters the exhaust pipe, under the addition of the slurry, the current slurry will approach the air permeable disc. The air permeable disc can only discharge gas or part of the liquid, and the slurry contains a large number of materials with large diameters, so that the air permeable disc drives the plugging seat to move under the push of the slurry until the plugging seat is sealed and fitted with the mating ring, so as to complete the discharge of most of the gas and automatically block the exhaust port. Through the above structure, this application can automatically block multiple secondary connecting rods during use. If manual plugging is used, it is impossible to plug multiple exhaust pipes technically, so this application is more convenient during the connection process. Description of the Drawings

[0017] Figure 1 is the three-dimensional structure schematic diagram of the present invention; Figure 2 is the top view structure schematic diagram of the present invention; Figure 3 is Figure 2 the sectional structure schematic diagram at A-A in Figure 4 is Figure 3 the enlarged structure schematic diagram at a in Figure 5 is Figure 3Schematic diagram of the enlarged structure at position b in [the figure]; Figure 6 is Figure 3 Schematic diagram of the enlarged structure at position c in [the figure]; Figure 7 Schematic side view structure diagram of the present invention; Figure 8 is Figure 7 Schematic sectional structure diagram at section B - B in [the figure]; Figure 9 is Figure 8 Schematic diagram of the enlarged structure at position d in [the figure].

[0018] In the figure: 1, main connecting rod; 2, secondary connecting rod; 3, series pipe; 301, locking sleeve; 4, feeding assembly; 401, feeding pipe; 402, docking jack; 403, limiting ring; 404, movable column; 4041, support grid; 4042, check baffle; 4043, check spring; 405, interaction cavity; 5, exhaust assembly; 501, exhaust pipe; 502, groove; 5021, support spring; 5022, expansion slot; 503, mating ring; 504, moving bracket; 5041, partition slide plate; 5042, coupling shaft; 505, breathable disc; 5051, combined block; 506, sealing seat; 507, docking seat; 5071, combined groove; 6, connecting elbow; 7, sealing cover; 8, series seat; 9, filling cavity; 901, guiding cover; 902, diversion groove; 903, movable slot; 904, movable rod; 905, locking seat; 906, push plate; 907, contraction spring; 10, reinforcing rib; 11, steel bar perforation. Detailed implementation manners

[0019] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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 protection scope of the present invention.

[0020] As Figures 1 to 9 shown, a connecting device for prefabricated buildings includes a main connecting rod 1 and several secondary connecting rods 2. Reinforcing bar perforations 11 for connecting steel bars are provided at both the upper and lower ends of the main connecting rod 1 and the secondary connecting rods 2. Series seats 8 are provided on the bodies of the main connecting rod 1 and the secondary connecting rods 2. A series pipe 3 is provided between every two series seats 8. Exhaust assemblies 5 for discharging gas are installed on the upper sides of the bodies of the main connecting rod 1 and the secondary connecting rods 2. A feeding assembly 4 for pouring slurry is provided on the lower side of the body of the main connecting rod 1.

[0021] In this embodiment, locking sleeves 301 are provided at both ends of the series pipe 3. The locking sleeves 301 are threadedly matched with the adjacent series seat 8. The series seat 8 is threadedly connected to the connecting elbow 6 and the sealing cover 7.

[0022] Slurry can be added through the feeding assembly 4 so that the slurry enters the main connecting rod 1, wherein the required number of secondary connecting rods 2 can be connected in series by using the series pipe 3, and the slurry can be poured into each secondary connecting rod 2 in turn, so as to achieve support between the connecting device and the steel bars. Compared with the existing connecting device, the present application can effectively improve the supporting strength of the prefabricated building at the connection point, thereby improving the supporting strength of the prefabricated building as a whole, wherein the series seat 8 can be blocked by the sealing cover 7 to achieve the closure of the internal series space, and the arrangement of different specifications and sizes of the secondary connecting rods 2 can be achieved by connecting the bent pipe 6, so that it is suitable for assembling column materials. The above structure allows the present application to be freely combined into the required size, thereby improving its adaptability.

[0023] In this embodiment, a filling cavity 9 is opened inside the main connecting rod 1 and the secondary connecting rod 2, and a plurality of reinforcing ribs 10 are arranged on the inner wall of the filling cavity 9; after the slurry solidifies, the plurality of reinforcing ribs 10 can be used to strengthen the connection strength between the slurry and the slurry, so that the slurry inside the filling cavity 9 will not move after solidification.

[0024] A guide cover 901 is installed on the upper and lower sides of the filling cavity 9 respectively. A plurality of guide grooves 902 are opened on one side of the guide cover 901. A movable groove 903 is opened at one end of the guide groove 902. A movable rod 904 is movably installed inside the movable groove 903.

[0025] Among them, locking seats 905 and push plates 906 are respectively installed at both ends of the movable rod 904, and a contraction spring 907 is arranged between the push plate 906 and the inner wall of the movable groove 903. The inner sides of several locking seats 905 clamp the steel bars together.

[0026] When assembling the present application, steel bar through holes 11 for connecting steel bars are provided at the upper and lower ends of the main connecting rod 1 and the secondary connecting rod 2, and the steel bar through holes 11 are connected to the steel bars, so that the present application is connected to the assembled buildings on the upper and lower sides. After the initial connection is completed, slurry is pre-poured on the outside thereof, and after it solidifies, slurry is poured inside the main connecting rod 1 and the secondary connecting rod 2. During the slurry pouring process, the slurry gradually increases, so that part of the slurry will be introduced into the guide groove 902 under the action of the guide cover 901, and the slurry pushes the push plate 906. When the push plate 906 moves, it pushes the movable rod 904, so that the multiple movable rods 904 move toward the steel bars, wherein the locking seat 905 can be used to clamp the steel bars when the slurry pouring is completed, so as to ensure that the subsequent solidification between the steel bars and the poured slurry will not be disturbed; During connection, the push plate 906 is pushed by the contraction spring 907 to move the movable rod 904 away from the steel bar perforation 11, so as to ensure that the movable rod 904 does not block the entry of the steel bar when the steel bar is inserted into the steel bar perforation 11.

[0027] In this embodiment, the feeding assembly 4 includes a feeding pipe 401. The feeding pipe 401 is fixedly installed on the lower side of the main connecting rod 1. A docking socket 402 is provided at the opening of the feeding pipe 401. A limiting ring 403 is provided at one end of the feeding pipe 401. An interaction cavity 405 is formed between the limiting ring 403 and the docking socket 402. A check baffle 4042 is arranged inside the interaction cavity 405.

[0028] It should be noted that a check spring 4043 is fixedly installed between one side of the check baffle 4042 and the limiting ring 403. A movable column 404 is fixedly installed on the other side of the check baffle 4042. A support grid 4041 is fixedly installed at one end of the movable column 404.

[0029] When pouring the slurry, first insert the pouring nozzle into the docking socket 402. As the nozzle is inserted, it pushes the support grid 4041 and the movable column 404, causing the check baffle 4042 to open the current interaction cavity 405, so that the slurry can enter the interaction cavity 405 for pouring. Among them, through the support grid 4041, the check baffle 4042 can move stably without interfering with the entry of the slurry. After the pouring operation is completed, when the nozzle is taken out, at the same time of taking out, the check baffle 4042 is supported by the check spring 4043, so that the check baffle 4042 closes the interaction cavity 405 again, which can effectively avoid the phenomenon of slurry backflow when the nozzle is taken out, and then ensure the stability of the subsequent slurry solidification. Through the above structure, the feeding pipe 401 can be automatically closed when the pouring is completed, without manually inserting parts to block it by personnel, which not only reduces the operation process but also avoids the waste of slurry.

[0030] In this embodiment, the exhaust assembly 5 includes an exhaust pipe 501. The exhaust pipe 501 is fixedly installed on the upper sides of the adjacent main connecting rod 1 and secondary connecting rod 2. A groove 502 is formed in the inner wall of the exhaust pipe 501. A moving bracket 504 is movably installed inside the groove 502. A connecting shaft 5042 is fixedly installed at the center of the moving bracket 504. A plugging seat 506 is fixedly installed at one end of the connecting shaft 5042.

[0031] During specific setting, a matching ring 503 is provided at the opening of the exhaust pipe 501. The matching ring 503 is in sealing fit with the plugging seat 506. A docking seat 507 is provided on one side of the matching ring 503.

[0032] In the present application, an expansion slot 5022 is provided inside the groove 502. A partition sliding plate 5041 is movably arranged inside the expansion slot 5022. The partition sliding plate 5041 is fixedly installed at both ends of the moving bracket 504. A support spring 5021 is arranged between the moving bracket 504 and the groove 502; A ventilation disc 505 is fixedly installed on the shaft body of the coupling shaft 5042. A combination block 5051 is arranged outside the ventilation disc 505. A combination slot 5071 is provided on the inner wall of the docking seat 507. The combination block 5051 is in docking fit with the combination slot 5071.

[0033] During the process of pouring the slurry, in order to avoid the problem that the slurry is mixed with a large amount of materials and the strength decreases after solidification, it is necessary to discharge most of the gas inside the filling cavity 9 during the process of pouring the slurry. The slurry gradually rises, and the space inside the filling cavity 9 will gradually shrink. At this time, part of the gas will be discharged from the opening of the exhaust pipe 501. When the slurry rises to the height of the exhaust pipe 501, in order to avoid the leakage of the slurry, the slurry enters the exhaust pipe 501. Under the addition of the slurry, the current slurry will approach the ventilation disc 505. Since the ventilation disc 505 can only discharge gas or part of the liquid, and the slurry contains a large amount of materials with large diameters, the ventilation disc 505 drives the plugging seat 506 to move under the push of the slurry until the plugging seat 506 is in sealing fit with the mating ring 503, so as to complete the discharge of most of the gas and automatically plug the exhaust outlet at the same time. Through the above structure, the present application can perform an automatic plugging operation on multiple secondary connecting rods 2. If manual plugging is used, it is impossible to technically plug multiple exhaust pipes 501, so that the present application is more convenient during the connection process; The support spring 5021 can support the moving bracket 504, so that the plugging seat 506 is away from the mating ring 503, which can ensure that the exhaust pipe 501 is always open before plugging to avoid the situation that gas cannot be discharged.

[0034] Through the docking fit of the combination block 5051 and the combination slot 5071, it can be ensured that during the plugging process, the slurry will contact the combination block 5051 and the combination slot 5071, so that the ventilation disc 505 and the exhaust pipe 501 are fixed after the slurry solidifies, and the ventilation disc 505 can also perform a supporting operation to improve the overall strength of the current structure.

[0035] The working principle of the connecting device for prefabricated buildings: During use, first, according to the steel bar distribution requirements, the main connecting rod 1 and multiple secondary connecting rods 2 are combined using the series pipe 3 and the connecting elbow 6. After completion, steel bar perforations 11 for connecting steel bars are provided at both the upper and lower ends of the main connecting rod 1 and the secondary connecting rods 2, and the steel bar perforations 11 are inserted and docked with the steel bars, so that the present application is connected to the assembled buildings on the upper and lower sides. After the preliminary connection is completed, slurry is pre-poured on the outside, and after it solidifies, slurry is poured into the main connecting rod 1 and the secondary connecting rods 2; When pouring the slurry, first insert the pouring nozzle into the docking socket 402. As the nozzle is inserted, it pushes the support grid 4041 and the movable column 404, causing the check baffle 4042 to open the current interaction cavity 405, so that the slurry can enter the interaction cavity 405 for pouring. Among them, through the support grid 4041, the check baffle 4042 can move stably without interfering with the entry of the slurry; During the process of pouring the slurry, as the slurry gradually increases, part of the slurry will be guided into the diversion groove 902 under the action of the guiding cover 901, and the slurry will push the push plate 906. When the push plate 906 moves, it will push the movable rod 904, so that multiple movable rods 904 move towards the steel bars. Among them, the locking seat 905 can clamp the steel bars when the pouring of the slurry is completed to ensure that the subsequent solidification between the steel bars and the poured slurry will not be interfered; And when the pouring of the slurry is almost finished, in order to avoid the problem of the strength decrease after solidification caused by the mixing of a large amount of slurry, it is necessary to discharge most of the gas in the filling cavity 9 during the pouring process of the slurry. The slurry gradually rises, and the space inside the filling cavity 9 will gradually shrink. At this time, part of the gas will be discharged from the opening of the exhaust pipe 501. When the slurry rises to the height of the exhaust pipe 501, in order to prevent the slurry from leaking, as the slurry enters the exhaust pipe 501, under the addition of the slurry, the current slurry will approach the air-permeable disk 505. The air-permeable disk 505 can only discharge gas or part of the liquid, and the slurry contains a large amount of large-diameter materials, so that the air-permeable disk 505 drives the plugging seat 506 to move under the push of the slurry until the plugging seat 506 is hermetically fitted with the mating ring 503 to complete the automatic plugging operation; Finally, after the pouring operation is completed, when the nozzle is taken out, at the same time, the check spring 4043 supports the check baffle 4042, so that the check baffle 4042 closes the interaction cavity 405 again, which can effectively avoid the phenomenon of slurry backflow when the nozzle is taken out.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or modifications derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A connection device for an assembled building, comprising a main connecting rod (1) and a plurality of secondary connecting rods (2), characterized in that: The upper and lower ends of the main connecting rod (1) and the secondary connecting rod (2) are provided with steel bar through holes (11) for connecting steel bars. The main connecting rod (1) and the secondary connecting rod (2) are provided with series seats (8). A series pipe (3) is provided between each series seat (8). The upper sides of the main connecting rod (1) and the secondary connecting rod (2) are provided with exhaust assemblies (5) for exhausting gas. The lower side of the main connecting rod (1) is provided with a feeding assembly (4) for injecting slurry.

2. A connection device for assembled buildings according to claim 1, characterized in that: Locking sleeves (301) are provided at both ends of the series pipe (3), the locking sleeves (301) are threadedly matched with adjacent series seats (8), and the series seats (8) are threadedly connected to the connecting elbow (6) and the sealing cover (7).

3. The connection device for assembled buildings according to claim 1, characterized in that: A filling cavity (9) is provided inside the main connecting rod (1) and the secondary connecting rod (2), and a plurality of reinforcing ribs (10) are provided on the inner wall of the filling cavity (9).

4. The connection device for assembled buildings according to claim 3, characterized in that: The filling cavity (9) is provided with guide covers (901) on the upper and lower sides respectively; a plurality of guide grooves (902) are provided on one side of the guide cover (901); a movable groove (903) is provided at one end of the guide groove (902); and a movable rod (904) is movably installed inside the movable groove (903).

5. The connection device for assembled buildings according to claim 4, characterized in that: The two ends of the movable rod (904) are respectively provided with a locking seat (905) and a push plate (906), a contraction spring (907) is provided between the push plate (906) and the inner wall of the movable groove (903), and the inner sides of a plurality of the locking seats (905) clamp the steel bar together.

6. The connection device for assembled buildings according to claim 1, characterized in that: The feed assembly (4) comprises a feed pipe (401), the feed pipe (401) being fixedly mounted on the lower side of the main connecting rod (1), a docking socket (402) being provided at the opening of the feed pipe (401), a limit ring (403) being provided at one end of the feed pipe (401), an interactive cavity (405) being provided between the limit ring (403) and the docking socket (402), and a non-return baffle (4042) being provided inside the interactive cavity (405).

7. The connection device for assembled buildings according to claim 6, characterized in that: A non-return spring (4043) is fixedly installed between one side of the non-return baffle plate (4042) and the limiting ring (403), a movable column (404) is fixedly installed on the other side of the non-return baffle plate (4042), and a supporting grid (4041) is fixedly installed on one end of the movable column (404).

8. The connection device for assembled buildings according to claim 1, characterized in that: The exhaust assembly (5) comprises an exhaust pipe (501), wherein the exhaust pipe (501) is fixedly mounted on the upper sides of the adjacent main connecting rod (1) and secondary connecting rod (2), wherein a groove (502) is provided on the inner wall of the exhaust pipe (501), wherein a movable bracket (504) is movably mounted inside the groove (502), wherein a connecting shaft (5042) is fixedly mounted at the center of the movable bracket (504), and a blocking seat (506) is fixedly mounted at one end of the connecting shaft (5042).

9. The connection device for assembled buildings according to claim 8, characterized in that: A matching ring (503) is provided at the opening of the exhaust pipe (501), the matching ring (503) is sealingly fitted with the blocking seat (506), and a docking seat (507) is provided on one side of the matching ring (503).

10. The connection device for assembled buildings according to claim 9, characterized in that: An expansion slot (5022) is provided inside the groove (502), a separation slide (5041) is movably provided inside the expansion slot (5022), the separation slide (5041) is fixedly mounted at both ends of the movable bracket (504), and a support spring (5021) is provided between the movable bracket (504) and the groove (502); The shaft body of the connecting shaft (5042) is fixedly mounted with a ventilating disk (505), the outer side of the ventilating disk (505) is provided with a combination block (5051), the inner wall of the docking seat (507) is provided with a combination groove (5071), and the combination block (5051) is docked with the combination groove (5071).

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