Connecting piece between prefabricated sealed wall bodies and connecting mode

Abstract

The connecting piece comprises a plurality of module wall bodies, profile steel assemblies are arranged on the two sides of each module wall body, wallboards are closed on the surfaces of the module wall bodies, connecting holes which are laterally through are formed in the surfaces of the profile steel on the two sides of each module wall body, and the two connecting holes correspond to each other; a mounting cavity is formed in the connecting frame, a through hole is formed in the side, facing the profile steel, of the mounting cavity, a receding notch is formed in the upper side or the lower side of the mounting cavity, a connecting column is formed at one end of the screwing body, external threads are formed on the peripheral face of the connecting column, and the connecting column is located in the through hole of the mounting cavity. The connecting frames and the connecting sleeves are installed on the inner sides of profile steel on the two sides of the module wall correspondingly, through holes of the connecting frames correspond to the connecting holes, inner holes of the connecting sleeves correspond to the connecting holes, internal threads are arranged on the inner circumferential faces of the connecting sleeves, and the screwing body rotates to enable the connecting columns to penetrate through the two connecting holes and be screwed into the connecting sleeves. Through the arrangement, the prefabricated module wall body can be integrated to the maximum extent.

Description

Technical Field

[0001] This invention belongs to the technical field of connecting accessories between modular walls, specifically relating to a connector and connection method for prefabricated sealed walls. Background Technology

[0002] Currently, the connection methods for cold-formed thin-walled light steel walls have the following problems: 1. Existing connection methods mainly use self-tapping screws, requiring on-site workers to have relevant professional construction experience and operational skills, such as screw spacing and number of screws. 2. When recycling components using existing connection methods, disassembly will damage some of the component materials. 3. Existing connection nodes are numerous, dense, and complex, resulting in long on-site construction cycles and difficulties. 4. Existing connection methods and connectors require a certain amount of open working space when connecting modules, preventing the modules from being fully integrated and prefabricated.

[0003] In view of this, this solution was developed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a connector and connection method between prefabricated sealed walls, which can be produced in a modular manner.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a connector between prefabricated sealed walls, comprising multiple modular walls, wherein the modular walls are provided with steel profiles on both sides and the surface is sealed with wall panels, and the steel profiles on both sides of the modular walls have lateral through-holes, with two of the connecting holes corresponding to each other; It also includes a connecting frame, a screw-on body, and a connecting sleeve. The connecting frame has an installation chamber, and the installation chamber has a through hole on the side facing the steel section. The installation chamber has a clearance notch on the upper or lower side. One end of the screw-on body has a connecting post, and the outer circumferential surface of the connecting post has an external thread. The connecting post is located in the through hole of the installation chamber. The connecting frame and the connecting sleeve are respectively installed on the inner side of the steel profiles on both sides of the module wall. The through hole of the connecting frame corresponds to the connecting hole, and the inner hole of the connecting sleeve corresponds to the connecting hole. The inner circumferential surface of the connecting sleeve has an internal thread. The screw-on body rotates to make the connecting post pass through the two connecting holes and screw into the connecting sleeve.

[0006] Furthermore, a mounting post is formed at the other end of the screw-on body, and a mounting hole is formed on the side of the mounting chamber away from the steel profile, with the mounting post located inside the mounting hole.

[0007] Furthermore, the connector also includes a pusher assembly, which is used to push the mounting post so that the connector is pressed against the through hole.

[0008] Furthermore, the abutting component includes an elastic sleeve, and an L-shaped plate is formed on one side of the connecting frame where the mounting hole is formed. The horizontal part of the L-shaped plate is connected to any side of the end face of the connecting frame, and the vertical part of the L-shaped plate corresponds to the end face of the connecting frame and a gap is formed between them. A circular groove is formed on the mounting post, and the elastic sleeve is located in the circular groove and one end abuts against the vertical part of the L-shaped plate.

[0009] Furthermore, the vertical portion of the L-shaped plate is provided with a third connecting hole, and a limiting member is provided at the third connecting hole. The limiting member extends between the vertical portion of the L-shaped plate and the connecting frame, and the other side of the elastic sleeve is sleeved on the outer circumferential surface of the limiting member.

[0010] Furthermore, the outer peripheral surface of the screw-on body is formed with external teeth.

[0011] Furthermore, the screw-on body is driven to rotate by a worm gear meshing with external teeth and the rotation of the worm gear.

[0012] Furthermore, the surface of the steel profile with the connecting frame installed in the modular wall has an operating notch.

[0013] A connection method between prefabricated sealed walls, using a connector for connecting prefabricated sealed walls; S1. Before assembling the modular panel, install the connecting frame and nut on the inner side of the steel on the left and right sides respectively. The screw-on body is set in the connecting frame, and the connecting column corresponds to the two connecting holes of the steel and the inner hole of the nut. Assemble the steel and wall panel to form a modular wall. The steel and wall panel have operation notches and corresponding notches at the corresponding positions of the connecting frame. S2. Align the two modular walls, with the steel profiles of the adjacent modular walls having nuts attached to the steel profiles with connecting frames, and ensure that the connecting holes of the adjacent modular walls correspond. Drive the rotating body to rotate, and tighten the connecting post of the body through the two connecting holes and screw it into the nut to achieve the connection of the two modular walls.

[0014] Furthermore, it also includes step S3; step S3 is to fill the corresponding gap in the wall panel after the connection is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Existing light steel wall systems typically involve moving pre-assembled light steel frames to the construction site. These frames consist of four rectangular steel sections. On-site, two sections of the light steel frame are aligned side-up, and then connected using self-tapping screws on the inside of one section. After connection, the wall panels on both sides of the light steel frame are laid. This solution provides a connector. Connection holes are made on the steel sections on both sides of the light steel frame. A connecting frame is fixed inside the connection holes of one module of the wall. A screw-on body is installed within the connecting frame. The steel section with the connecting frame... An operating notch is made in the wall, and then wall panels are directly installed on both sides of the light steel frame to close it during the factory production process. Corresponding notches are also made in the wall panels at the positions corresponding to the operating notches, allowing for modular production. In actual construction, it is only necessary to splice two light steel walls so that the two connecting holes on the adjacent light steel walls are aligned. Then, the screw-on body is rotated, and the connecting column is tightened and locked into the connecting sleeve in the other connecting hole, thus locking the two light steel walls. Compared with the existing construction method, there is no need to lock the light steel frame before sealing the wall, which greatly improves construction efficiency.

[0016] 2. To prevent the screw-on body from being screwed into the second connecting hole and resulting in an unstable connection, this solution provides a connecting sleeve inside the second connecting hole. The connecting sleeve has internal threads and is welded to the steel profile. When connecting two light steel walls, the connecting post on the screw-on body passes through the first and second connecting holes and is screwed into the connecting sleeve to achieve a connection, making the connection more secure and reliable.

[0017] 3. During the process of screwing the connecting post on the screw-in body into the connecting sleeve, a counterforce is required in the direction of the screw-in body towards the connecting sleeve to ensure smooth screw-in of the screw-in body into the connecting sleeve. Therefore, this solution provides an installation post extending out of the connecting frame at the other end of the screw-in body. An L-shaped plate is provided on the outward side of the connecting frame. An elastic sleeve is provided between the vertical part of the L-shaped plate and the installation post. The elastic sleeve continuously counterforces the installation post, ensuring that the screw-in body always has a counterforce in the direction of the connecting sleeve during the connection process. Moreover, the elastic sleeve also ensures that the screw-in body will not shake during the transportation of the module wall, which could damage or cause it to come off the connecting frame.

[0018] 4. Traditional connection methods using self-tapping screws between wall components are prone to damage after secondary demolition, requiring re-drilling. The appearance and strength of the damaged connection affect the lifespan of the building. However, the connectors in this solution, which connect two modular walls, do not damage the connection during demolition. Furthermore, the connection method using connecting columns and connecting sleeves significantly improves the shear strength and structural reliability of the modular wall connection compared to traditional self-tapping screw connections, and also facilitates subsequent recycling and reuse.

[0019] 5. Existing connection methods require open workspaces for connecting modular walls, making it impossible to maximize the integration and prefabrication of modular walls. The connectors in this solution solve the above integration and prefabrication difficulties. Modular walls can be maximized in the factory, and all modular walls can be prefabricated. Only a small operating notch and corresponding notch need to be reserved on the modular wall to ensure the locking and fixing of the connectors, thus quickly improving the efficiency of construction and assembly of modular products. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the connector assembled into the module wall panel in the present invention in the vertical direction; Figure 2 This is a cross-sectional view of the connector assembled into the module wall panel in the present invention in the horizontal direction; Figure 3 This is a schematic cross-sectional view of the assembled connector in this invention. Figure 4 This is a cross-sectional view of the connector after it has been separated in this invention.

[0021] The markings in the diagram are: 1. Steel profile; 2. Wall; 21. Exterior wall decoration layer; 22. Structural layer; 23. Insulation layer; 3. Connecting frame; 31. Through hole; 32. Mounting hole; 33. Clearance notch; 34. L-shaped plate; 35. Limiting component; 4. Screw-on body; 41. Connecting column; 42. Mounting column; 5. Connecting sleeve; 6. Elastic sleeve. Detailed Implementation

[0022] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0023] The connectors mentioned in this solution are used for the installation between the modular wall 2. The modular wall 2 includes four steel sections 1 and the wall 2. The four steel sections 1 are arranged in a rectangular pattern and connected to form a light steel frame. The steel sections 1 are C-shaped steel sections. Lateral through-holes are opened on the surface of the steel sections 1 on both sides of the modular wall 2, and the two connecting holes correspond to each other. The wall 2 is sealed on both sides of the light steel frame. The wall 2 consists of an exterior wall decoration layer 21, a structural layer 22 and an insulation layer 23 from the outside to the inside. The structural layer 22 can be a cement layer, a wood panel layer or other structural layers commonly used in wall decoration.

[0024] like Figures 1-4 As shown, this embodiment provides a connector between prefabricated sealed walls 2, including a connecting frame 3, a screw-on body 4, a connecting sleeve 5, and a top-supporting component.

[0025] An installation chamber is formed within the connecting frame 3. Through holes 31 and installation holes 32 are formed on both sides of the installation chamber. Specifically, the installation hole 32 is formed by an inwardly bent folding plate on one side of the installation chamber, with the installation hole 32 provided on the folding plate. Preferably, in this embodiment, the installation hole 32 is an arc-shaped hole, with one side of the installation hole 32 penetrating the side of the folding plate. A clearance notch 33 is formed at the upper end of the installation chamber. The connecting frame 3 is installed inside one of its connecting holes and connected to the steel profile 1 by screws or other connecting structures. The through hole 31 is coaxially arranged with the connecting hole.

[0026] One end of the screw-on body 4 has a connecting post 41 with external threads on its outer circumferential surface. The other end of the screw-on body 4 has a mounting post 42. The connecting post 41 is located inside the through hole 31, and the mounting post 42 is located inside the mounting hole 32. The mounting hole 32 is used to support the mounting post 42, allowing the screw-on body 4 to be suspended in the air for easy rotation. The outer circumferential surface of the screw-on body 4 has external teeth, and the upper end of the screw-on body 4 extends out of the opening of the clearance notch 33. The length of the screw-on body 4 is less than the length of the mounting chamber.

[0027] The abutting component is used to push the mounting post 42 so that the connecting post 41 is pressed against the through hole 31. The abutting component includes an elastic sleeve 6, which is a spring in this embodiment. An L-shaped plate 34 is formed on one side of the connecting frame 3 where the mounting hole 32 is formed. The horizontal part of the L-shaped plate 34 is connected to any side of the end face of the connecting frame 3, and the vertical part of the L-shaped plate 34 corresponds to the end face of the connecting frame 3 and a gap is formed between them. A circular groove is formed on the mounting post 42. The elastic sleeve 6 is located in the circular groove and abuts against the vertical part of the L-shaped plate 34 at one end. Specifically, the vertical part of the L-shaped plate 34 has a first connecting hole. A limiting member 35 is provided in the first connecting hole. The limiting member 35 is a bolt that is screwed into the first connecting hole. The limiting member 35 extends between the vertical part of the L-shaped plate 34 and the connecting frame 3. The other side of the elastic sleeve 6 is sleeved on the outer circumferential surface of the limiting member 35.

[0028] The inner circumferential surface of the connecting sleeve 5 is formed with an internal thread, which is adapted to the external thread on the outer circumferential surface of the connecting post 41 of the screw-on body 4. The connecting sleeve 5 is fixedly installed on one side of the profile 1 with the second connecting hole. The axis of the connecting sleeve 5 and the axis of the second connecting hole coincide. In this embodiment, the connecting sleeve 5 is fixedly installed on the profile 1 by welding.

[0029] The present invention also provides a connection method between prefabricated sealed walls 2, which uses the above-mentioned connector between prefabricated sealed walls 2 for connection; including the following steps: S1. Before assembling the module panel, install the connecting frame 3 and nuts on the inner side of the steel profile 1 on the left and right sides respectively. The screw-on body 4 is set in the connecting frame 3, and the connecting column 41 corresponds to the two connecting holes of the steel profile 1 and the inner hole of the nut. Assemble the steel profile 1 and the wall panel to form the module wall 2. The steel profile 1 and the wall panel have operation notches and corresponding notches at the corresponding positions of the connecting frame 3. S2. Align the two modular wall panels 2, with the steel profile 1 with nuts on adjacent modular wall panels 1 fitting against the steel profile 1 with connecting frame 3, and ensure the connecting holes of adjacent modular wall panels 2 correspond. Drive the screw-on body 4 to rotate, and screw the connecting post 41 of the screw-on body through the two connecting holes into the nuts to connect the two modular wall panels 2. The specific operation is as follows: When installing the modular wall panels 2 on the construction site, simply align and splice the connecting holes on the two modular wall panels 2, and align the connecting post 41 on the screw-on body 4 with the connecting hole on the other modular wall panel 2. During the splicing process, the connecting post 41 retracts... Upon reaching the top, it will move towards the mounting post 42, and then rotate the screw-in body 4. With the cooperation of the elastic sleeve 6 (resistance force), the connecting post 41 is screwed into the connecting sleeve 5 to fix the two module walls 2. In this solution, the screw-in body 4 rotates by inserting a turbine rod with teeth that are compatible with the outer teeth of the screw-in body 4 at the output end of the electric drill. During operation, the turbine rod extends into the inner side of the steel profile 1 and is located above the clearance notch 33. Then, the turbine rod engages with the outer teeth on the outer circumference of the screw-in body 4, and the turbine rod is started to rotate. The connecting post 41 of the screw-in body 4 can then be screwed into the connecting sleeve 5.

[0030] S3. After the connection is completed, fill the corresponding gaps in the wall panel. The material used to fill the wall panel is the same as that used in the exterior wall decoration layer 21. After filling, apply a sealant to make the gaps invisible from the outside.

[0031] This solution involves creating connection holes on the steel sections 1 on both sides of a light steel frame. A connecting frame 3 is fixedly installed inside the connection hole of one steel section 1, and a screw-in body 4 is installed inside the connecting frame 3. An operation notch is made on the side wall of the steel section 1 with the connecting frame 3. Then, at the factory, wall panels are directly installed on both sides of the light steel frame to close it. Corresponding notches are also made on the wall panels at the positions corresponding to the operation notches, allowing for modular production. During actual construction, it is only necessary to splice the two light steel wall sections 2 so that the connection holes on adjacent light steel wall sections 2 correspond. Then, the screw-in body 4 is rotated, and the connecting column 41 is screwed into the connecting sleeve 5 inside the connection hole of the other modular wall section 2, thereby locking the two light steel wall sections 2. Compared with the existing construction method, it is not necessary to lock the light steel frame before sealing the wall section 2, which greatly improves construction efficiency.

[0032] Furthermore, the traditional connection method using self-tapping screws between wall components 2 is prone to damage at the connection point after secondary demolition, requiring re-drilling. The appearance and strength of the damaged connection point will affect the lifespan of the building. However, the connection method using the connectors in this solution to connect the two modular wall components 2 will not cause damage to the connection point during demolition. Moreover, the connection method using connecting posts 41 and connecting sleeves 5 greatly improves the shear strength and structural reliability of the modular wall component 2 connection compared to the traditional self-tapping screw connection, and is also more conducive to subsequent recycling and reuse.

[0033] Existing connection methods require open workspaces for connecting modular wall units 2, making it impossible to maximize the integration and prefabrication of modular wall units 2. The connectors in this solution solve the above integration and prefabrication difficulties. Modular wall units 2 can be maximized in the factory, and all modular wall units 2 can be prefabricated. Only a small operating notch and corresponding notch need to be reserved on the modular wall units 2 to ensure the locking and fixing of the connectors, thus quickly improving the efficiency of construction and assembly of modular products.

[0034] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A connector between prefabricated sealed walls, comprising multiple modular walls, wherein the modular walls are composed of steel profiles on both sides and have wall panels sealing their surfaces, characterized in that: Lateral through-holes are opened on the surface of the steel profiles on both sides of the modular wall, and the two through-holes correspond to each other; It also includes a connecting frame, a screw-on body, and a connecting sleeve. The connecting frame has an installation chamber, and the installation chamber has a through hole on the side facing the steel section. The installation chamber has a clearance notch on the upper or lower side. One end of the screw-on body has a connecting post, and the outer circumferential surface of the connecting post has an external thread. The connecting post is located in the through hole of the installation chamber. The connecting frame and the connecting sleeve are respectively installed on the inner side of the steel profiles on both sides of the module wall. The through hole of the connecting frame corresponds to the connecting hole, and the inner hole of the connecting sleeve corresponds to the connecting hole. The inner circumferential surface of the connecting sleeve has an internal thread. The screw-on body rotates to make the connecting post pass through the two connecting holes and screw into the connecting sleeve.

2. The connector between prefabricated sealed walls according to claim 1, characterized in that: The other end of the screw-on body has a mounting post, and the mounting chamber has a mounting hole on the side away from the steel profile, with the mounting post located inside the mounting hole.

3. The connector between prefabricated sealed walls according to claim 2, characterized in that: The connector also includes a pusher assembly, which is used to push the mounting post so that the connector is pressed against the through hole.

4. A connector between prefabricated sealed walls according to claim 3, characterized in that: The abutting component includes an elastic sleeve. An L-shaped plate is formed on one side of the connecting frame where the mounting hole is formed. The horizontal part of the L-shaped plate is connected to any side of the end face of the connecting frame. The vertical part of the L-shaped plate corresponds to the end face of the connecting frame and a gap is formed between them. A circular groove is formed on the mounting post. The elastic sleeve is located in the circular groove and one end abuts against the vertical part of the L-shaped plate.

5. A connector between prefabricated sealed walls according to claim 4, characterized in that: The vertical portion of the L-shaped plate has a third connecting hole, and a limiting member is provided at the third connecting hole. The limiting member extends between the vertical portion of the L-shaped plate and the connecting frame, and the other side of the elastic sleeve is fitted onto the outer circumferential surface of the limiting member.

6. The connector between prefabricated sealed walls according to claim 1, characterized in that: The outer peripheral surface of the screw-on body has external teeth.

7. A connector between prefabricated sealed walls according to claim 6, characterized in that: The screw-on body rotates by meshing with an external tooth via a worm gear, and the rotation of the worm gear drives the screw-on body to rotate.

8. A connector between prefabricated sealed walls according to claim 1, characterized in that: The modular wall has an operating notch on the surface of the steel profile with a connecting frame.

9. A connection method between prefabricated sealed walls, characterized in that: The connection is made using a prefabricated sealed wall connector as described in any one of claims 1-8; S1. Before assembling the modular panel, install the connecting frame and nut on the inner side of the steel on the left and right sides respectively. The screw-on body is set in the connecting frame, and the connecting column corresponds to the two connecting holes of the steel and the inner hole of the nut. Assemble the steel and wall panel to form a modular wall. The steel and wall panel have operation notches and corresponding notches at the corresponding positions of the connecting frame. S2. Align the two modular walls, with the steel profiles of the adjacent modular walls having nuts attached to the steel profiles with connecting frames, and ensure that the connecting holes of the adjacent modular walls correspond. Drive the rotating body to rotate, and tighten the connecting post of the body through the two connecting holes and screw it into the nut to achieve the connection of the two modular walls.

10. The connection method between prefabricated sealed walls according to claim 9, characterized in that: It also includes step S3; step S3 is to fill the corresponding gap in the wall panel after the connection is completed.

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