Prefabricated decoration extruded polystyrene board snap-fit ​​connection anti-loosening device

By designing an anti-loosening mechanism on the extruded polystyrene (XPS) board, and utilizing components such as mounting bases, compression anti-loosening blocks, and springs, the problem of loosening of the clips is solved, achieving a stable connection of the XPS board and improving the reliability of prefabricated decoration.

CN224314511UActive Publication Date: 2026-06-02ZHONGNENG CONSTRUCTION (TIANJIN) ENERGY SAVING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGNENG CONSTRUCTION (TIANJIN) ENERGY SAVING TECHNOLOGY CO LTD
Filing Date
2025-05-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In prefabricated construction, the clips on extruded polystyrene boards are prone to coming loose, affecting their stability.

Method used

An anti-loosening mechanism was designed, including components such as a mounting base, a compression anti-loosening block, a slider, a spring, and bolts. The compression anti-loosening block is connected to the rivet, and the cooperation of the spring and the slider achieves stable fixation of the buckle.

Benefits of technology

It effectively prevents the clips from loosening, ensures a stable connection between the extruded polystyrene board and the wall, avoids loosening and falling off, and improves the reliability of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a snap-fit ​​anti-loosening device for extruded polystyrene (XPS) boards used in prefabricated decoration. It includes an XPS board body for decoration, four snap-fit ​​fasteners on the right side of the XPS board body, and an anti-loosening mechanism located above the right side of the XPS board body between the snap-fit ​​fasteners. The anti-loosening mechanism includes a mounting base on the right side of the XPS board body, with a second slot inside the mounting base. An anti-loosening block is inserted into the second slot. The XPS board body serves to provide sound insulation and heat preservation for the building. The snap-fit ​​fasteners connect and fix the XPS board body to rivets on the wall, thus limiting the installation of the XPS board body. The anti-loosening mechanism further strengthens the connection between the snap-fit ​​fasteners and rivets, preventing loosening during actual use and thus avoiding the entire board from falling off and affecting its use.
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Description

Technical Field

[0001] This utility model relates to the field of extruded polystyrene board installation technology, specifically to an anti-loosening device for extruded polystyrene board snap-fit ​​connection in prefabricated decoration. Background Technology

[0002] Extruded polystyrene board, also known as XPS board, is a rigid foam plastic board made by extruding polystyrene resin and polymers into a continuous closed-cell foam during the heating and mixing process with a catalyst. Its internal structure consists of independent, closed-cell air bubbles. It is an environmentally friendly insulation material with excellent properties such as high compressive strength, low water absorption, moisture resistance, air tightness, light weight, corrosion resistance, super anti-aging properties (almost no aging after long-term use), and low thermal conductivity.

[0003] Extruded polystyrene (XPS) boards are widely used in decoration for thermal insulation and soundproofing. In actual use, they are installed in a prefabricated manner, which requires the use of mounting brackets or rivets fixed to the wall for positioning. Therefore, there are related clips on the back of the XPS board to connect the XPS board to the rivets. However, in actual use, the clips are prone to falling off, which causes the XPS board to loosen and fall off, thus failing to meet the actual use needs. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a snap-fit ​​anti-loosening device for extruded polystyrene board for prefabricated decoration.

[0005] The specific technical solution is as follows:

[0006] An anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration includes an extruded polystyrene board body for decoration, four connecting snaps are provided on the right side of the extruded polystyrene board body, and an anti-loosening mechanism is provided on the upper right side of the extruded polystyrene board body and between the connecting snaps.

[0007] The anti-loosening mechanism includes a mounting base located on the right side of the extruded board body. The mounting base has a second slot inside, and an extrusion anti-loosening block is inserted inside the second slot.

[0008] As a preferred embodiment of this utility model, a second connecting plate is fixedly installed on both sides of the mounting base, and a second bolt is inserted through the interior of the second connecting plate, the second bolt penetrating into the interior of the extruded board body.

[0009] As a preferred embodiment of this utility model, the mounting base has sliding grooves on both sides of the second slot, and a slider is slidably connected inside the sliding groove. One side of the slider is fixedly connected to the compression anti-loosening block, and a first spring is fixedly installed on the top of the slider. The top of the first spring is fixedly connected to the top of the inner cavity of the sliding groove.

[0010] As a preferred embodiment of this utility model, the bottom of the mounting base and the outer side of the slide groove are provided with a mounting groove. A sealing block is provided inside the mounting groove. Two third bolts are inserted inside the sealing block. One side of the third bolts extends into the interior of the mounting base and is connected to the mounting base by a thread.

[0011] As a preferred embodiment of this utility model, the mounting base has an internal receiving groove, and a locking rod is inserted inside the receiving groove. The front side of the locking rod contacts the compression anti-loosening block, and a second spring is fixedly installed on the rear side of the locking rod.

[0012] As a preferred embodiment of this utility model, the mounting base has limit grooves on both sides of the receiving groove, and a limit rod is slidably connected inside the limit groove, with one side of the limit rod being fixedly connected to the locking rod.

[0013] As a preferred embodiment of this utility model, a first connecting plate is fixedly installed on both sides of the connecting buckle, and a first bolt is inserted inside the first connecting plate. One side of the first bolt penetrates into the interior of the extruded board body and is threadedly connected to the extruded board body.

[0014] This utility model has the following beneficial effects:

[0015] The extruded polystyrene board snap-fit ​​anti-loosening device provided by this utility model is used to achieve sound insulation and heat preservation of the building through the setting of the extruded polystyrene board body. The snap-fit ​​is used to connect and fix the extruded polystyrene board body to the rivets on the wall, thereby realizing the installation limit of the extruded polystyrene board body. The anti-loosening mechanism is set to further strengthen the connection of the rivets, preventing the snap-fit ​​and rivets from loosening during actual use, which would cause the whole to loosen and fall off, affecting the use. Attached Figure Description

[0016] Figure 1 A schematic diagram of the anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration provided in this embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the mounting base structure of the anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration provided in this embodiment of the utility model;

[0018] Figure 3 A bottom view of the mounting base of the anti-loosening device for the extruded polystyrene board snap-fit ​​connection for prefabricated decoration provided in this embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the connection buckle structure of the anti-loosening device for extruded polystyrene board fastener connection provided in this embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the extrusion anti-loosening block structure of the prefabricated decoration extruded board snap-fit ​​connection anti-loosening device provided in this utility model embodiment;

[0021] Figure 6 A schematic diagram of the clamping rod structure of the anti-loosening device for the snap-fit ​​connection of extruded polystyrene board for prefabricated decoration provided in this embodiment of the utility model;

[0022] Figure 7 A schematic diagram of the sealing block structure of the anti-loosening device for the prefabricated extruded polystyrene board snap-fit ​​connection provided in this embodiment of the utility model.

[0023] In the attached diagram: 1. Extruded polystyrene board body; 2. Connecting buckle; 3. Anti-loosening mechanism; 301. Mounting base; 302. Second slot; 303. Extrusion anti-loosening block; 304. Second connecting plate; 305. Second bolt; 306. Receiving groove; 307. Limiting groove; 308. Mounting groove; 309. Slide groove; 310. First spring; 311. Sliding block; 312. Second spring; 313. Locking rod; 314. Limiting rod; 315. Third bolt; 316. Sealing block; 4. First slot; 5. First connecting plate; 6. First bolt. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] The prefabricated decoration extruded polystyrene board snap-fit ​​connection anti-loosening device provided in this embodiment, such as... Figure 1 - Figure 7 As shown, it includes an extruded polystyrene board body 1 for decoration, four connecting buckles 2 are provided on the right side of the extruded polystyrene board body 1, and an anti-loosening mechanism 3 is provided on the upper right side of the extruded polystyrene board body 1 and between the connecting buckles 2.

[0030] The anti-loosening mechanism 3 includes a mounting base 301 located on the right side of the extruded board body 1. The mounting base 301 has a second slot 302 inside, and a compression anti-loosening block 303 is inserted inside the second slot 302. The second slot 302 is used to accommodate the compression anti-loosening block 303 and the rivet. The compression anti-loosening block 303 is used to compress the rivet, thereby fixing the rivet and increasing the overall stability.

[0031] A second connecting plate 304 is fixedly installed on both sides of the mounting base 301. A second bolt 305 is inserted inside the second connecting plate 304 and penetrates into the interior of the extruded polystyrene board body 1. The second connecting plate 304 and the second bolt 305 are used to fix the mounting base 301 to the rear side of the extruded polystyrene board body 1 to facilitate the installation and fixation of the extruded polystyrene board body 1.

[0032] Slide grooves 309 are provided inside the mounting base 301 and on both sides of the second slot 302. A slider 311 is slidably connected inside the slide groove 309. One side of the slider 311 is fixedly connected to the compression anti-loosening block 303. A first spring 310 is fixedly installed on the top of the slider 311. The top of the first spring 310 is fixedly connected to the top of the inner cavity of the slide groove 309. The cooperation between the slide groove 309, the slider 311 and the first spring 310 is used to limit the compression anti-loosening block 303. At the same time, the compression anti-loosening block 303 is raised by the pull of the first spring 310, thereby fixing the rivet.

[0033] A mounting groove 308 is provided at the bottom of the mounting base 301 and on the outside of the slide groove 309. A sealing block 316 is provided inside the mounting groove 308. Two third bolts 315 are inserted inside the sealing block 316. One side of the third bolt 315 extends into the interior of the mounting base 301 and is threadedly connected to the mounting base 301. The mounting groove 308 is used to accommodate the sealing block 316, and the third bolts 315 are used to fix the sealing block 316 inside the mounting groove 308, thereby sealing the slide groove 309 and preventing the slider 311 from being squeezed and falling off the anti-loosening block 303.

[0034] The mounting base 301 has an internal receiving groove 306, and a locking rod 313 is inserted inside the receiving groove 306. The front side of the locking rod 313 contacts the compression anti-loosening block 303, and a second spring 312 is fixedly installed on the rear side of the locking rod 313. The receiving groove 306 is used to receive the locking rod 313, and the locking rod 313 and the second spring 312 are used to block the compression anti-loosening block 303, thereby facilitating the opening of the compression anti-loosening block 303 and making it easier to install and accommodate the rivet later.

[0035] Limiting grooves 307 are provided inside the mounting base 301 and on both sides of the receiving groove 306. A limiting rod 314 is slidably connected inside the limiting groove 307. One side of the limiting rod 314 is fixedly connected to the locking rod 313. The limiting grooves 307 and the limiting rod 314 are used to limit the locking rod 313 and prevent the locking rod 313 from extending out of the receiving groove 306 under the push of the second spring 312, thus affecting the movement of the subsequent compression anti-loosening block 303.

[0036] Both sides of the connecting buckle 2 are fixedly installed with a first connecting plate 5. A first bolt 6 is inserted inside the first connecting plate 5. One side of the first bolt 6 penetrates into the interior of the extruded board body 1 and is threadedly connected to the extruded board body 1. The first connecting plate 5 and the first bolt 6 are used to install the connecting buckle 2 to the right side of the extruded board body 1 to facilitate the fixing of the extruded board body 1.

[0037] In use, the rivets that fix the extruded polystyrene board body 1 are pre-fixed to the wall. The connecting buckle 2 is fixed to the right side of the extruded polystyrene board body 1 by the first connecting plate 5 and the first bolt 6. At the same time, the mounting base 301 is fixed to the right side of the extruded polystyrene board body 1 by the second connecting plate 304 and the second bolt 305. After fixing, the compression anti-loosening block 303 is pulled down, so that the compression anti-loosening block 303 moves to below the clamping rod 313. Under the action of the second spring 312, the clamping rod 313 extends and compresses the compression anti-loosening block. The loosening block 303 acts as a barrier, adhering the extruded polystyrene board body 1 to the front side of the wall and allowing the rivets to penetrate into the first slot 4 and the second slot 302 respectively. As the rivets extend, they press against the locking rod 313, causing the locking rod 313 to penetrate into the receiving groove 306 and releasing the compression anti-loosening block 303. Under the pull of the first spring 310, the compression anti-loosening block 303 rises to press against the rivets, thereby fixing the rivets and stabilizing the extruded polystyrene board body 1.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A snap-fit ​​anti-loosening device for extruded polystyrene board used in prefabricated decoration, characterized in that, Includes an extruded polystyrene board body (1) for decoration, four connecting buckles (2) are provided on the right side of the extruded polystyrene board body (1), and an anti-loosening mechanism (3) is provided on the upper right side of the extruded polystyrene board body (1) and between the connecting buckles (2); The anti-loosening mechanism (3) includes a mounting base (301) disposed on the right side of the extruded board body (1). The mounting base (301) has a second slot (302) inside, and an extrusion anti-loosening block (303) is inserted inside the second slot (302).

2. The anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration according to claim 1, characterized in that, The mounting base (301) is fixedly mounted on both sides with a second connecting plate (304). A second bolt (305) is inserted inside the second connecting plate (304) and penetrates into the interior of the extruded board body (1).

3. The anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration according to claim 1, characterized in that, The mounting base (301) has a sliding groove (309) on both sides of the second slot (302). A slider (311) is slidably connected inside the sliding groove (309). One side of the slider (311) is fixedly connected to the compression anti-loosening block (303). A first spring (310) is fixedly installed on the top of the slider (311). The top of the first spring (310) is fixedly connected to the top of the inner cavity of the sliding groove (309).

4. The anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration according to claim 3, characterized in that, The mounting base (301) has a mounting groove (308) at its bottom and outside the slide groove (309). A sealing block (316) is provided inside the mounting groove (308). Two third bolts (315) are inserted inside the sealing block (316). One side of the third bolt (315) extends into the interior of the mounting base (301) and is connected to the mounting base (301) by a thread.

5. The anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration according to claim 1, characterized in that, The mounting base (301) has an internal receiving groove (306), and a locking rod (313) is inserted inside the receiving groove (306). The front side of the locking rod (313) contacts the compression anti-loosening block (303), and a second spring (312) is fixedly installed on the rear side of the locking rod (313).

6. The anti-loosening device for extruded polystyrene board snap-fit ​​connection in prefabricated decoration according to claim 5, characterized in that, The mounting base (301) has a limiting groove (307) inside and on both sides of the receiving groove (306). A limiting rod (314) is slidably connected inside the limiting groove (307), and one side of the limiting rod (314) is fixedly connected to the locking rod (313).

7. The anti-loosening device for extruded polystyrene board snap-fit ​​connection for prefabricated decoration according to any one of claims 1-6, characterized in that, The connecting buckle (2) is fixedly installed with a first connecting plate (5) on both sides. A first bolt (6) is inserted inside the first connecting plate (5). One side of the first bolt (6) penetrates into the interior of the extruded board body (1) and is threadedly connected to the extruded board body (1).