Assembly type built-in connecting piece and assembly type built-in hanging plate connecting device

Abstract

The utility model relates to the technical field of assembly type buildings, in particular to an assembly type built-in connecting piece and an assembly type built-in hanging plate connecting device. The fastener is used for connecting and fixing the fastener and a wall and comprises a first connecting piece and a second connecting piece, the first connecting piece integrally extends into the wall and is fixedly connected with the wall, a screw hole is formed in the end, away from the wall, of the first connecting piece, and one end of the second connecting piece penetrates through the fastener, extends into the screw hole and is in threaded connection with the first connecting piece. The screwing process of the second connecting piece and the first connecting piece is easy to control, it is guaranteed that the second connecting piece and the first connecting piece are located at the proper position, then the fastener can be accurately leveled, and therefore it is guaranteed that the hanging plate is stably installed on the fastener subsequently.

Description

A connector for prefabricated interior trim and a connecting device for prefabricated interior trim panels. Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a connector for prefabricated interior decoration and a connecting device for prefabricated interior hanging panels. Background Technology

[0002] Prefabricated interior wall panels constitute a significant portion of the overall interior decoration work, offering both aesthetic appeal and functionality. They are particularly important for residences, offices, hotels, and other spaces where wall decoration is a priority.

[0003] Existing wall panel installation methods mainly include adhesive bonding and hanging. Adhesive bonding involves using foam adhesive to fix the panel to the wall, while hanging involves using metal brackets to hang the panel on the wall or wall joists. With adhesive bonding, the chemicals in the adhesive are volatile and can affect health; furthermore, the adhesive ages over time, leading to loosening and unstable connections. Hanging methods use bolts to fix the panel to the wall with fasteners, and then the panel is hung on the fasteners.

[0004] This method of directly fixing the fasteners to the wall with bolts is difficult to control when screwing the bolts into the wall. The bolts can easily become too deep, making secondary adjustments impossible. The only solution is to remove the bolts and drill new holes, which damages the wall and makes it difficult to ensure the bolts are properly positioned when re-screwed, resulting in uneven fasteners. The connection between the fasteners and the mounting plate is mostly a snap-fit ​​method, requiring high installation precision. When the fasteners are uneven, installing the mounting plate becomes difficult, and over time, they are prone to loosening, leading to unstable connections. Summary of the Invention

[0005] To address the problem that existing fasteners and wall panels cannot be adjusted secondaryly due to bolt fixing, this utility model proposes a prefabricated interior connector and a prefabricated hanging panel connection device. The first connector extends into the wall and is fixed to the wall. The second connector passes through the fastener and the screw hole and is screwed to the first connector. The screwing process between the second connector and the first connector is easy to control, ensuring that they are in the correct position. This allows for more precise leveling of the fastener, thereby ensuring the stable installation of the hanging panel on the fastener.

[0006] To achieve the above objectives, this utility model provides:

[0007] A prefabricated interior connector for connecting and fixing fasteners to a wall includes a first connector and a second connector. The first connector extends entirely into the wall and is fixedly connected to it. A screw hole is provided at the end of the first connector away from the wall. One end of the second connector passes through the fastener, extends into the screw hole, and is screwed onto the first connector. The end face of the first connector is flush with the wall surface.

[0008] Furthermore, an expansion tube is sleeved on the first connector, and a first nut is screwed onto the first connector.

[0009] Furthermore, a first washer is fitted onto the first connector, and the first washer is located between the first nut and the expansion tube. The expansion tube is used to improve the connection strength between the first connector and the wall.

[0010] Furthermore, a second nut is screwed onto the end of the first connector near the second connector, and a second washer is fitted onto the first connector, with the second washer located between the second nut and the second connector.

[0011] To achieve the above objectives, this utility model provides:

[0012] The prefabricated interior wall panel connection device includes a connector, a fastener, and a wall. A wall panel is provided on one side of the wall. The fastener is connected and fixed to the wall through the connector, and the wall panel is snapped onto the fastener.

[0013] Furthermore, the fastener includes a first connecting section, a second connecting section, and a third connecting section. The first connecting section is connected to the wall via a connector, the second connecting section connects the first connecting section and the third connecting section, and a snap-fit ​​groove is provided on the side of the mounting plate, into which the third connecting section extends.

[0014] Furthermore, the third connecting segment has a protrusion on the side near the first connecting segment, and the protrusion contacts the side of the snap-fit ​​groove. This increases the connection strength between the mounting plate and the fastener.

[0015] The beneficial effects of this utility model through the above technical solution are as follows:

[0016] 1. In the prefabricated interior connector of this utility model, the first connector extends into the wall and is fixed to the wall. One end of the second connector passes through the fastener and is screwed to the first connector through the screw hole. The screwing process between the second connector and the first connector is easy to control. It can be manually tightened to ensure that it is in the right position, so that the fastener can be leveled more accurately.

[0017] 2. The fasteners in the prefabricated interior hanging panel connecting device of this utility model allow the hanging panel to be directly snapped together with the fasteners, eliminating the need for nailing on the hanging panel, thus avoiding damage to the hanging panel. The device is also more flexible in disassembly and assembly, and the installation accuracy of the hanging panel can be guaranteed even after the fasteners are leveled. Attached Figure Description

[0018] Figure 1 is a structural schematic diagram of a prefabricated interior connector according to this utility model.

[0019] Figure 2 is a schematic diagram of the prefabricated interior hanging panel connection device of this utility model, wherein the wall is a concrete wall;

[0020] Figure 3 is an enlarged view of the structure at point A in Figure 2 of the assembled interior hanging panel connection device of this utility model;

[0021] Figure 4 is a structural schematic diagram of the prefabricated interior hanging panel connection device of this utility model, wherein the wall adopts an aerated block wall.

[0022] Figure 5 is a second structural schematic diagram of a prefabricated interior connector of this utility model, wherein the first connector adopts an umbrella-shaped hollow wall bolt.

[0023] Figure 6 is a schematic diagram of the structure of the prefabricated interior hanging plate connection device of this utility model, wherein the first connecting part adopts an umbrella-shaped hollow wall bolt and the wall adopts a hollow brick wall.

[0024] Figure 7 is a schematic diagram of the prefabricated interior hanging panel connection device of this utility model. The first connecting part is a self-tapping screw, and the wall is composed of gypsum board and sound-absorbing rock wool material.

[0025] In the attached diagram, the following numbers are used: 1 for fastener, 2 for wall, 3 for first connector, 4 for second connector, 5 for expansion tube, 6 for first nut, 7 for first washer, 8 for second nut, 9 for second washer, 10 for hanging plate, 11 for first connecting section, 12 for second connecting section, 13 for third connecting section, and 15 for protrusion. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] Example 1

[0028] As shown in Figures 1 and 2, this embodiment provides a prefabricated interior connector for connecting and fixing fastener 1 to wall 2. As shown in Figure 1, the connector includes a first connector 3 and a second connector 4. The first connector 3 extends entirely into the wall 2 and is connected and fixed to the wall 2. In this embodiment, the first connector 3 cannot be directly drilled into the wall 2 by an external drilling machine. During construction, it is necessary to first drill an installation hole at a preset position using an electric hammer or electric drill, and then insert the first connector 3 into the installation hole. The inner diameter of the installation hole is larger than that of the first connector 3. After the first connector 3 is placed into the installation hole, the installation hole is filled with cement mortar. After the cement solidifies, the first connector 3 is connected and fixed to the wall 2.

[0029] During this process, the outside of the mounting hole should not be completely sealed with cement. A certain amount of space should be left to ensure that the end of the first connector 3 is exposed. It is better if the end face of the first connector 3 is flush with the outer side of the wall 2.

[0030] The first connector 3 has a screw hole at its end furthest from the wall 2. One end of the second connector 4 passes through the fastener 1, extends into the screw hole, and is screwed onto the first connector 3. The second connector 4 can be a screw with a thread matching the screw hole. The screw is screwed into the screw hole to connect and fix the fastener 1 to the wall 2. The position of the second connector 4 in the screw hole is relatively easy to adjust, and its depth can be controlled manually. When passing through the fastener 1, it is easier to control its position to ensure the flatness of the fastener 1. Directly nailing into the wall 2 requires using an electric drill or nail gun to drive the nail through the fastener 1 into the wall. The depth after driving in is difficult to control and can easily lead to unevenness of the fastener 1.

[0031] To ensure the connection strength between the first connector 3 and the wall 2, an expansion tube 5 is fitted onto the first connector 3, and a first nut 6 is screwed onto the first connector 3. When the first connector 3 enters the mounting hole, the expansion tube 5 expands within the mounting hole by tightening the first nut 6. The expansion tube 5 is made of plastic and has good toughness. A first washer 7 is fitted onto the first connector 3, located between the first nut 6 and the expansion tube 5. This increases the contact area between the first nut 6 and the expansion tube 5, increases friction, and ensures the stability of the connection.

[0032] To ensure the connection strength between the first connecting member 3, the fastener 1, and the second connecting member 4, a second nut 8 is screwed onto the end of the first connecting member 3 near the second connecting member 4. A second washer 9 is fitted onto the first connecting member 3, positioned between the second nut 8 and the second connecting member 4. The second nut 8 and the second washer 9 increase the contact area between the fastener 1 and the first connecting member 3, preventing the fastener 1 from loosening. They also protect the threads on the screw hole and the second connecting member 4, reducing the probability of thread failure.

[0033] The method for installing fastener 1 using this connector is as follows: First, drill an installation hole at a preset position using an electric hammer or electric drill. Insert the first connector 3 into the installation hole and tighten the first nut 6 to allow the expansion tube 5 to expand in the installation hole. Then, fill the installation hole with cement mortar. After the mortar solidifies, the first connector 3 is connected and fixed to the wall 2. During this process, the outside of the installation hole should not be completely sealed by cement; leave a certain space to ensure that the end of the first connector 3 protrudes. It is best if the end face of the first connector 3 is flush with the outer side of the wall 2. Then, manually align the through hole on the fastener 1 with the end of the first connector 3. The second nut 8 and the second washer 9 are located at the outer end of the first connector 3. Manually pick up the second connector 4. The end of the second connector 4 passes through the through hole on the fastener 1 and is threaded into the screw hole at the end of the first connector 3. After inserting to a suitable depth, the fastener 1 can be tightened and leveled for better accuracy.

[0034] Example 2

[0035] Referring to Figures 2 to 4, this embodiment provides a prefabricated interior hanging panel connection device, including a connector, a fastener 1 and a wall 2. A hanging panel 10 is provided on one side of the wall 2. The fastener 1 is connected and fixed to the wall 2 through the connector, and the hanging panel 10 is snapped onto the fastener 1.

[0036] Specifically, the fastener 1 includes a first connecting section 11, a second connecting section 12 and a third connecting section 13. The first connecting section 11 is connected to the wall 2 through a connector. The end of the first connecting section 11 is provided with an extension section, and a through hole is provided on the extension section for the second connector 4 to pass through.

[0037] The second connecting segment 12 connects the first connecting segment 11 and the third connecting segment 13. A snap-fit ​​groove is provided on the side of the hanging plate 10, and the third connecting segment 13 extends into the snap-fit ​​groove. The fastener 1 has an I-shaped cross-section. The symmetrically arranged third connecting segments 13 on the fastener 1 extend into the snap-fit ​​grooves at the adjacent ends of the two hanging plates 10. The fit between the ends of the two hanging plates 10 ensures a small gap when they are joined together during installation, maintaining a neat and aesthetically pleasing appearance. When the hanging plate 10 is inserted into the fastener 1, the third connecting segment 13 on the fastener 1 has a certain degree of flexibility and can deform slightly, allowing the hanging plate 10 to be inserted into the fastener 1, thus achieving the connection between the hanging plate 10 and the fastener 1.

[0038] The third connecting section 13 has a protrusion 15 on the side near the first connecting section 11, and the protrusion 15 contacts the side of the snap-fit ​​groove. This increases the connection strength between the hanging plate 10 and the fastener 1.

[0039] In this embodiment, the wall 2 can be an aerated concrete block wall or a reinforced concrete wall, and the expansion pipe 5 can be a conventional expansion pipe.

[0040] In some other embodiments, the wall 2 is a hollow brick wall (as shown in Figure 6). The first connector 3 adopts an umbrella-shaped hollow gecko bolt, including an expansion tube 5 disposed on the outer side of the bolt. The end of the expansion tube 5 away from the second connector 4 is threadedly connected to the bolt in the first connector 3. This is prior art and will not be described in detail. The front end of the expansion tube 5 extends into the hollow part of the hollow brick (as shown in Figure 5 when not unfolded). By tightening the first nut 6, the expansion tube 5 is unfolded in the hollow part of the hollow brick (as shown in Figure 6), so that the unfolded part of the expansion tube 5 is attached to the inner wall of the hollow brick. Then, the installation hole is filled with cement mortar. After the cement solidifies, the first connector 3 is connected and fixed to the wall 2, thereby improving the connection strength between the first connector 3 and the wall 2.

[0041] Referring to Figure 7, in some other embodiments, the difference from the above embodiments is that the wall 2 is made of sound-absorbing rock wool with a lightweight keel partition wall and surrounded by gypsum board on the outside, and the first connector 3 is a self-tapping screw.

[0042] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A prefabricated interior fitting connector for connecting and fixing a fastener (1) to a wall (2), characterized in that, It includes a first connector (3) and a second connector (4). The first connector (3) extends into the wall (2) and is connected and fixed to the wall (2). The first connector (3) has a screw hole at one end away from the wall (2). One end of the second connector (4) passes through the fastener (1) and extends into the screw hole and is screwed to the first connector (3).

2. The prefabricated interior connector according to claim 1, characterized in that, An expansion tube (5) is fitted on the first connector (3), and a first nut (6) is screwed onto the first connector (3).

3. A prefabricated interior connector according to claim 2, characterized in that, The first connector (3) is fitted with a first washer (7), which is located between the first nut (6) and the expansion tube (5).

4. A prefabricated interior connector according to claim 1, characterized in that, The first connector (3) is screwed with a second nut (8) at the end near the second connector (4), and a second washer (9) is fitted on the first connector (3). The second washer (9) is located between the second nut (8) and the second connector (4).

5. A prefabricated interior panel connection device, characterized in that, Includes the connector, fastener (1) and wall (2) as described in any one of claims 1-4, with a hanging plate (10) provided on one side of the wall (2), the fastener (1) being connected and fixed to the wall (2) through the connector, and the hanging plate (10) being snapped onto the fastener (1).

6. The prefabricated interior hanging panel connection device according to claim 5, characterized in that, The fastener (1) includes a first connecting section (11), a second connecting section (12) and a third connecting section (13). The first connecting section (11) is connected to the wall (2) through a connector. The second connecting section (12) connects the first connecting section (11) and the third connecting section (13). The side of the hanging plate (10) is provided with a snap-fit ​​groove, and the third connecting section (13) extends into the snap-fit ​​groove.

7. The fabricated interior panel connection device of claim 6, wherein, The third connecting segment (13) has a protrusion (15) on the side near the first connecting segment (11), and the protrusion (15) contacts the side of the snap-fit ​​groove.

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