Connecting device of fabricated load-bearing wall

Abstract

The utility model discloses a connecting device of an assembly type load-bearing wall, and belongs to the technical field of assembly type buildings. A connecting device of an assembly type bearing wall comprises a screw penetrating through an assembly type wall body, one end of the screw is in threaded connection with a conical head, the portion, located in the assembly type wall body, of the screw is sleeved with a joint sleeve, the connecting device further comprises a rubber pad arranged on the screw in a sleeving mode, the conical head and the rubber pad abut against the two sides of the assembly type wall body respectively, and the other end of the screw is in threaded connection with a nut. When the screw rod and the conical head get close to each other or get away from each other, the joint sleeve expands or restores, the rubber pad provides buffering and sealing in the process, vibration transmission is reduced, stable transmission between the screw rod and the nut is ensured, tight connection between the screw rod and the nut is ensured through the design of the conical head and the nut, accidental separation is prevented, and the safety of the device is improved. The threaded connection provides higher mechanical strength, ensures the close fit between the joint sleeve and the wall body, and enhances the stability of the whole structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabricated building, especially a connecting device of fabricated load-bearing wall. BACKGROUND

[0002] With the rapid development of building industrialization, fabricated building gradually becomes the mainstream trend in modern building engineering because of its advantages such as high efficiency, environmental protection and quality controllability, in the fabricated building, the wall is usually precast in the factory and then transported to the construction site for assembly, in order to ensure the integrity and stability of the building, the connection between the walls is crucial, especially in cold regions or in building projects with high energy-saving requirements, the application of thermal insulation components becomes more and more common, in order to ensure the thermal insulation effect and structural safety, it is usually necessary to tightly combine the thermal insulation material with the concrete wall.

[0003] However, in actual application, the traditional connection method often needs complex operation steps, which increases the construction difficulty and time cost, and the quality problem of the connecting piece not set according to the requirements may cause insufficient connection strength between the thermal insulation layer and the wall, which exists safety hidden danger. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of insufficient connection strength between the thermal insulation layer and the wall caused by the quality problem of the connecting piece not set according to the requirements in the prior art, and provides a connecting device of fabricated load-bearing wall.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A connecting device of fabricated load-bearing wall, comprising a screw rod penetrating through the fabricated wall, one end of the screw rod is threadedly connected with a taper head, the screw rod is sleeved with a joint sleeve in the fabricated wall, further comprising a rubber pad sleeved on the screw rod, the taper head and the rubber pad are respectively abutted with two sides of the fabricated wall, the other end of the screw rod is threadedly connected with a nut, when the screw rod and the taper head are close to or away from each other, the joint sleeve expands or restores.

[0007] In order to provide a buffering effect and reduce vibration transmission, preferably, the rubber pad comprises an inner ring and an outer ring, the joint sleeve is embedded between the inner ring and the outer ring, the inner ring is threadedly matched with the screw rod.

[0008] In order to improve the stability and reliability of the connection, further, the outer ring is formed with a groove at one end away from the taper head, when the nut is close to the taper head end, it can be embedded in the groove.

[0009] In order to evenly distribute the pressure of the nut, further, a gasket is arranged between the rubber pad and the nut.

[0010] In order to facilitate replacement, to meet the wall of different thickness, further, the section sleeve comprises an opening section and a standard section, the opening section is threadedly connected with the standard section.

[0011] In order to prevent the nut from falling off the screw rod, provide additional security, further, the screw rod away from the tapered head one end has a limit part, the opening diameter of the nut near the rubber pad one end is smaller than the limit part.

[0012] Compared with the prior art, the utility model provides a connecting device of assembly type load bearing wall has the following beneficial effects:

[0013] 1、The connecting device of assembly type load bearing wall, through the movement of screw rod, section sleeve is compressed gradually and expands outward, tightly adhere to the inside of wall, form firm locking effect, rubber pad provides buffer and seal in this process, reduce vibration transmission, and ensure the smooth transmission between screw rod and nut, through the design of tapered head and nut ensures the close connection between the two, prevent accidental separation, increase the safety of device, threaded connection provides higher mechanical strength, ensure the close cooperation between section sleeve and wall, enhance the stability of overall structure, and if a part is damaged, can replace tapered head, section sleeve, rubber pad or nut alone, reduce maintenance cost;

[0014] 2、The connecting device of assembly type load bearing wall, the outer ring away from the tapered head one end forms a groove, when the nut is close to the tapered head one end, can be embedded in the groove, provide additional locking function, further improve the stability and reliability of connection;

[0015] 3、The connecting device of assembly type load bearing wall, through the setting of gasket, increase the mechanical strength of device, prevent the deformation or damage of rubber pad caused by excessive tightening of nut, gasket can also provide more uniform pressure distribution, ensure the close connection between screw rod and nut. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an installation structure schematic view of the connecting device of assembly type load bearing wall provided by the utility model;

[0017] Figure 2 It is an overall structure schematic view of the connecting device of assembly type load bearing wall provided by the utility model;

[0018] Figure 3 It is a rubber pad structure schematic view of the connecting device of assembly type load bearing wall provided by the utility model;

[0019] Figure 4The utility model provides a kind of nut and rubber pad cooperation structure schematic diagram of connecting device of fabricated load-bearing wall of the utility model.

[0020] In the figure: 1, screw rod;101, limiting portion;2, cone head;3, section sleeve;301, open section;302, standard section;4, rubber pad;401, inner ring;402, outer ring;403, gas pocket;404, groove;5, nut;6, gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] Reference Figures 1-4 A kind of connecting device of fabricated load-bearing wall, including the screw rod 1 that is passed through fabricated wall body, screw rod 1 as the core component of entire connecting device, play fixed and force transmission, one end of screw rod 1 is threadedly connected with cone head 2, screw rod 1 is located in the section sleeve 3 that is set in fabricated wall body, the surface of cone head 2 can be designed into specific shape such as conical, to better cooperate the expansion action of section sleeve 3, and provide additional locking function, section sleeve 3 is made of material with elasticity such as rubber or elastic plastic, can swell or restore when screw rod 1 and cone head 2 are close to each other or away from each other, the design of section sleeve 3 makes it can expand outward when being pressed, tightly adhere to wall body inside, form firm locking effect;When pressure is released, section sleeve 3 can restore original shape again, facilitate disassembly and adjustment, still include rubber pad 4 that is set on screw rod 1, cone head 2 and rubber pad 4 are respectively with the two sides of fabricated wall body, rubber pad 4 not only provides buffering effect, reduces vibration transmission, also enhances the sealing property and anti-seismic performance of device, the other end of screw rod 1 is threadedly connected with nut 5, when screw rod 1 and cone head 2 are close to each other or away from each other, section sleeve 3 swells or restores.

[0025] The screw rod 1 is inserted through the assembled wall, ensuring that both ends of the screw rod 1 protrude outside the wall, the tapered head 2 is installed at one end of the screw rod 1 and abuts against one side of the wall, the joint sleeve 3 is sleeved onto the screw rod 1 and placed inside the wall, the rubber pad 4 is sleeved onto the screw rod 1 and abuts against the surface of the wall, and the rubber pad 4 is rotated using a tool to move the screw rod 1 and the tapered head 2 closer to each other. As the screw rod 1 moves, the joint sleeve 3 is gradually compressed and expands outward, tightly adhering to the inside of the wall and forming a secure locking effect. The rubber pad 4 provides cushioning and sealing during this process, reducing vibration transmission and ensuring smooth transmission between the screw rod 1 and the nut 5. The design of the tapered head 2 and the nut 5 ensures a tight connection between them, preventing accidental separation and increasing the safety of the device. The threaded connection provides higher mechanical strength, ensuring a tight fit between the joint sleeve 3 and the wall, enhancing the stability of the overall structure. Additionally, if a part is damaged, the tapered head 2, joint sleeve 3, rubber pad 4, or nut 5 can be replaced individually, reducing maintenance costs.

[0026] The rubber pad 4 includes an inner ring 401 and an outer ring 402, and the joint sleeve 3 is embedded between the inner ring 401 and the outer ring 402. The inner ring 401 is internally provided with air pockets 403, which can provide additional cushioning effect when compressed, reduce vibration transmission, and enhance the sealing and shock resistance of the device. The inner ring 401 is threadedly connected with the screw rod 1 for driving the rotation of the screw rod 1.

[0027] The outer ring 402 is formed with a groove 404 at the end away from the tapered head 2, which can be embedded into the groove 404 when the nut 5 moves towards the tapered head 2, providing additional locking function and further improving the stability and reliability of the connection.

[0028] A gasket 6 is provided between the rubber pad 4 and the nut 5 for uniformly distributing the pressure of the nut 5, preventing local overpressure from causing deformation or damage to the rubber pad 4. The gasket 6 is usually made of high-strength and wear-resistant materials such as metal or engineering plastics, and can also provide additional corrosion protection to extend the service life of the nut 5 and the rubber pad 4.

[0029] The joint sleeve 3 includes an expanded joint 301 and a standard joint 302, and the expanded joint 301 is threadedly connected with the standard joint 302.

[0030] The expanded joint 301 is in contact with the tapered head 2 at one end and is threadedly connected with the standard joint 302 at the other end. The standard joint 302 is internally provided with internal threads that match the external threads on the outer side of the expanded joint 301, allowing relative movement between the two through rotation. Different lengths of standard joints 302 can be replaced to meet the needs of walls of different thicknesses.

[0031] The end of the screw rod 1 away from the conical head 2 has a limiting part 101, and the opening diameter of the screw cap 5 close to the rubber pad 4 is smaller than the limiting part 101, so that the screw cap 5 is prevented from falling off the screw rod 1, and additional safety is provided.

[0032] The screw rod 1 is inserted through the assembled wall, and the two ends of the screw rod 1 are ensured to extend out of the two sides of the wall, the conical head 2 is installed at one end of the screw rod 1 and abuts against one side of the wall, the opening section 301 is threadedly connected with the standard section 302 and then embedded between the inner ring 401 and the outer ring 402 of the rubber pad 4 and placed inside the wall, the gasket 6 is placed between the rubber pad 4 and the screw cap 5 to uniformly distribute the pressure of the screw cap 5 and protect the rubber pad 4 from local overpressure, the rubber pad 4 is rotated by using a tool to make the screw rod 1 and the conical head 2 close to each other. With the movement of the screw rod 1, the opening section 301 is gradually compressed and expands outward to tightly fit inside the wall, forming a firm locking effect, and the rubber pad 4 provides buffering and sealing during the process to reduce vibration transmission and ensure smooth transmission between the screw rod 1 and the screw cap 5. The air pocket 403 in the outer ring 402 further enhances the buffering effect, and when the screw cap 5 is fully tightened, one end of the screw cap 5 is embedded in the groove 404 of the outer ring 402 to provide additional locking function, and the gasket 6 ensures uniform distribution of the pressure of the screw cap 5 to protect the rubber pad 4 from damage. The limiting part 101 ensures that the screw cap 5 will not fall off the screw rod 1.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A connecting device for a prefabricated load-bearing wall, comprising a threaded rod (1) penetrating the prefabricated wall, one end of the threaded rod (1) being threadedly connected to a cone head (2), and a sleeve (3) fitted inside the prefabricated wall, characterized in that, It also includes a rubber pad (4) sleeved on the screw (1), the cone (2) and the rubber pad (4) respectively abut against the two sides of the prefabricated wall, and the other end of the screw (1) is threaded with a nut (5). When the screw (1) and the cone (2) move closer or further away from each other, the sleeve (3) expands or recovers.

2. The connection device for a prefabricated load-bearing wall according to claim 1, characterized in that, The rubber pad (4) includes an inner ring (401) and an outer ring (402). The sleeve (3) is embedded between the inner ring (401) and the outer ring (402). An air bag (403) is provided inside the outer ring (402). The inner ring (401) is threadedly engaged with the screw (1).

3. The connection device for a prefabricated load-bearing wall according to claim 2, characterized in that, The outer ring (402) forms a groove (404) at the end away from the cone (2). When the nut (5) approaches the end of the cone (2), it can be embedded in the groove (404).

4. The connection device for a prefabricated load-bearing wall according to claim 3, characterized in that, A gasket (6) is provided between the rubber pad (4) and the nut (5).

5. A connection device for a prefabricated load-bearing wall according to claim 1 or 2, characterized in that, The sleeve (3) includes an opening section (301) and a standard section (302), wherein the opening section (301) and the standard section (302) are threadedly connected.

6. The connection device for a prefabricated load-bearing wall according to claim 2, characterized in that, The screw (1) has a limiting part (101) at the end away from the cone (2), and the opening diameter of the nut (5) near the rubber pad (4) is smaller than the limiting part (101).

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