A prefabricated building wall connecting device

Abstract

The utility model belongs to the field of fabricated building wall, especially a kind of fabricated building wall connecting device, to the butt joint of the present eaves and support, generally through rivet or welding mode to be fixed, and the connecting place is prone to corrosion damage, inconvenient repair, replacement problem, present and propose following scheme, including the eaves being located in the one side of wall, the one side of wall is fixedly connected with two mounting plates by expansion screw, the one side of two the mounting plate is fixedly connected with support rod and insertion rod, slidingly connected with the clamping column in the insertion rod, fixedly connected with support block in the insertion rod, the top inner wall of clamping column and the top of support block between spring are provided, in the utility model, through mechanical clamping, elastic locking, slope diversion and other innovative designs, the balance of installation efficiency, structural safety, waterproof performance and maintenance convenience is realized, especially applicable to the fabricated building scene with higher construction cycle and later operation and maintenance requirements.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building wall technology, and in particular to a prefabricated building wall connection device. Background Technology

[0002] Prefabricated building wall connection devices are a core technological product in the process of building industrialization. Their background stems from the need to transform from traditional cast-in-place construction mode to prefabricated assembly system. With the popularization of modular construction concept, this device combines standardized prefabricated components in the factory with on-site rapid assembly technology, which solves the problems of low efficiency and large quality fluctuations in traditional construction.

[0003] Roof eaves are part of the building wall. After some walls are connected, roof eaves need to be installed. However, when installing existing roof eaves and walls, although the structure is relatively simple and easy to install, the joint between the eaves and the bracket is generally fixed by riveting or welding. The joint is prone to rust and damage, making it difficult to repair or replace. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, the connection between the eaves and the support is usually fixed by riveting or welding, which makes the connection prone to rust and damage, and inconvenient to repair or replace. Therefore, a prefabricated building wall connection device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prefabricated building wall connection device, comprising:

[0007] An eave is provided on one side of the wall. Two mounting plates are fixedly connected to one side of the wall by expansion bolts. A support rod and an insertion rod are fixedly connected to one side of each mounting plate. A locking post is slidably connected inside the insertion rod. A support block is fixedly connected inside the insertion rod. A spring is provided between the top inner wall of the locking post and the top of the support block. The two ends of the spring abut against the top inner wall of the locking post and the top of the support block respectively through spring seats.

[0008] The eaves are provided with a second slot for inserting a support rod and an L-shaped slot for inserting an insertion rod. A screw is threaded into the eaves, the bottom of which extends into the L-shaped slot and abuts against the top of the locking post.

[0009] In one possible design, the eaves are provided with two recessed slots, the second slot is connected to the recessed slots, and the mounting plate is embedded in the recessed slots.

[0010] In one possible design, the top of the eaves has a top surface that is high in the middle and low on both sides.

[0011] In one possible design, the eaves are provided with two guide pipes, which are located on the side of the eaves closest to the wall.

[0012] In one possible design, two drain pipes are fixedly installed at the bottom of the eaves, and the two drain pipes are respectively connected to the bottom end of the guide pipe. The drain pipes are fixedly connected to the wall by clamps.

[0013] In one possible design, the joint between the top edge of the eaves and the wall is filled with sealant.

[0014] In this application, the mounting plate is welded and fixed to one end of the support rod. A hole is drilled in the wall using an electric drill, and the mounting plate is fixed to one side of the wall using expansion screws. The second slot inside the eaves is aligned with the support rod and inserted, allowing the mounting plate to be inserted into the recessed groove. During the alignment, the inner wall of the top of the L-shaped slot applies a downward pushing force to the inclined surface of the top of the locking post. The locking post slides downward within the insertion rod, and the spring inside the locking post contracts due to the obstruction of the support block, making the top of the locking post flush with the top of the insertion rod. The insertion rod slides within the L-shaped slot. When one end of the insertion rod contacts the inner wall of one side of the L-shaped slot, the spring expands, pushing... The movable locking post moves upward and contacts the screw, thus limiting the L-shaped slot. The top of the eaves is sealed to the wall with sealant. Two drain pipes connect to the guide pipes from below the eaves and are fixed to the wall with clamps, thus securing the drain pipes. When it rains, rainwater flows down the top slope of the eaves to the two guide pipes and then flows downward through the two drain pipes. When disassembling the eaves, the screws are turned with a screwdriver, causing the screws to move downward and contact the locking post downward, making the top of the locking post flush with the top of the insertion rod. The eaves can then be pulled out from the two support rods.

[0015] Beneficial effects: In this utility model, the prefabricated building wall connection device has a spring that forms an adaptive preload between the insertion rod and the locking post. After installation, the spring automatically extends to push the locking post against the screw, forming a mechanical locking and preventing the structure from loosening.

[0016] In this utility model, the prefabricated building wall connection device has a top surface that is high in the middle and low on both sides. Combined with the water guide angle design of the guide pipe, rainwater can quickly flow to the drainage pipes on both sides to avoid water accumulation and leakage. The joint between the eaves and the wall is treated with sealant to form a physical barrier, providing double protection to prevent rainwater intrusion.

[0017] This invention achieves a balance between installation efficiency, structural safety, waterproof performance, and ease of maintenance through innovative designs such as mechanical snap-fit, elastic locking, and slope guidance. It is particularly suitable for prefabricated building scenarios with high requirements for construction cycle and subsequent operation and maintenance. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a prefabricated building wall connection device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the eaves of a prefabricated building wall connection device proposed in this utility model.

[0020] Figure 3 This is a cross-sectional exploded view of the eaves of a prefabricated building wall connection device proposed in this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the insertion rod of a prefabricated building wall connection device proposed in this utility model.

[0022] In the diagram: 1. Wall; 2. Eaves; 3. Drainage pipe; 4. Top surface; 5. Drainage pipe; 6. Mounting plate; 7. Support rod; 8. Screw; 9. L-shaped slot; 10. Second slot; 11. Embedded groove; 12. Insert rod; 13. Locking post; 14. Support block; 15. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: Refer to Figures 1 to 4 A connecting device is described, in which the installation position is determined on the side of the wall 1, holes are drilled using an electric drill, and expansion screws are inserted. Two mounting plates 6 are then tightly attached to the wall 1 and fixed with the expansion screws. Support rods 7 and insertion rods 12 are pre-welded to the mounting plates 6 at the factory. A sliding cavity is pre-reserved inside the insertion rod 12, housing a retaining post 13. A spring 15 is installed between the top of the retaining post 13 and the support block 14 fixed inside the insertion rod 12. The spring 15 is made of stainless steel, with specifications of φ8×30mm and a rated compression of 20mm. Both ends of the spring 15 abut against the inner wall of the top of the retaining post 13 and the top of the support block 14, respectively, via spring seats.

[0025] Reference Figures 3 to 4Raise the eaves 2 horizontally to the installation height. Two second slots 10, two embedding grooves 11, and two L-shaped slots 9 are pre-cut on the inner side of the eaves 2 (the second slots 10 and embedding grooves 11 are connected). Align the support rod 7 with the second slot 10 and insert it until the mounting plate 6 is fully embedded in the embedding groove 11; simultaneously, insert the insertion rod 12 into the L-shaped slot 9. During insertion, the inclined surface at the top of the L-shaped slot 9 presses down on the top of the locking post 13, forcing the locking post 13 to slide downwards within the insertion rod 12, compressing the spring 15. When the insertion rod 12 reaches the end of the L-shaped slot 9, the spring 15 extends, pushing the locking post 13 upwards, causing the top of the locking post 13 to protrude from the surface of the insertion rod 12, forming a mechanical limit.

[0026] Reference Figure 1 , Figure 3 and Figure 4 Screw 8 into the threaded hole at the top of the eaves 2. The bottom of screw 8 extends downward into the L-shaped slot 9, contacting the top of the retaining post 13 to form a locking contact. A retaining ring is provided around the screw 8 to fix it to the eaves 2 and prevent it from loosening. The joint between the top edge of the eaves 2 and the wall 1 is filled with sealant to form a waterproof layer.

[0027] This application can be used in the field of prefabricated building walls, or in other fields applicable to this application.

[0028] Example 2: Reference Figure 1 and Figure 2 An improvement based on Embodiment 1: A prefabricated building wall connection device, applied to the field of prefabricated building walls, wherein the top surface 4 of the eaves 2 is designed as a slope that is high in the middle and low on both sides. Drainage pipes 5 are pre-embedded at both ends near the wall 1, with the bottom ends of the drainage pipes 5 extending to the bottom of the eaves 2. Two drainage pipes 3 are respectively connected to the bottom ends of the drainage pipes 5, and the drainage pipes 3 are fixed to the side of the wall 1 by clamps.

[0029] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated building wall connection device, characterized in that, include: An eave (2) is provided on one side of the wall (1). Two mounting plates (6) are fixedly connected to one side of the wall (1) by expansion screws. Support rods (7) and insertion rods (12) are fixedly connected to one side of each of the two mounting plates (6). A locking post (13) is slidably connected inside the insertion rod (12). A support block (14) is fixedly connected inside the insertion rod (12). A spring (15) is provided between the top inner wall of the locking post (13) and the top of the support block (14). The two ends of the spring (15) abut against the top inner wall of the locking post (13) and the top of the support block (14) respectively through spring seats. The eaves (2) are provided with a second slot (10) for inserting a support rod (7) and an L-shaped slot (9) for inserting an insertion rod (12). The eaves (2) are threaded with a screw (8). The bottom of the screw (8) extends into the L-shaped slot (9), and the bottom of the screw (8) abuts against the top of the locking post (13).

2. The prefabricated building wall connection device according to claim 1, characterized in that, The eaves (2) are provided with two embedding slots (11), the second slot (10) is connected to the embedding slot (11), and the mounting plate (6) is embedded in the embedding slot (11).

3. The prefabricated building wall connection device according to claim 1 or 2, characterized in that, The top of the eaves (2) is provided with a top surface (4), which is high in the middle and low on both sides.

4. The prefabricated building wall connection device according to claim 3, characterized in that, The eaves (2) are provided with two guide pipes (5), which are located on the side of the eaves (2) close to the wall (1).

5. The prefabricated building wall connection device according to claim 4, characterized in that, Two drain pipes (3) are fixedly installed at the bottom of the eaves (2). The two drain pipes (3) are respectively connected to the bottom end of the guide pipe (5). The drain pipes (3) are fixedly connected to the wall (1) by clamps.

6. The prefabricated building wall connection device according to claim 1, characterized in that, The joint between the top edge of the eaves (2) and the wall (1) is filled with sealant.

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