Gauze mounting structure

Abstract

The utility model relates to the technical field of gauze element installation, in particular to a gauze element installation structure which comprises a first section bar, a gauze element, a second section bar and a fixing piece, the first section bar is provided with a first containing groove, the gauze element comprises an installation section, and one side of the installation section is attached to the side, provided with the first containing groove, of the first section bar. According to the gauze installation structure, the fixing pieces with different functions are arranged, different requirements of the high-permeability net and the diamond net during installation are effectively met, specifically, the fixing pieces are configured to press the gauze part into the first containing groove in an abutting mode when the high-permeability net is installed, stable interference fit is achieved, and when the diamond net is installed, the gauze part is pressed into the second containing groove in an abutting mode. The fixing part enables the gauze element to make close contact with the first sectional material in the mode that the fixing part abuts against the first sectional material and is fixedly connected with the first sectional material, the stability of the gauze element is ensured, the gauze element installation structure meets the adaptation requirements of different types of gauze elements, and the overall installation convenience and the using effect are improved.

Description

Technical Field

[0001] This utility model relates to window frame installation structures, and more particularly to a screen installation structure. Background Technology

[0002] In modern architecture and interior decoration, the application of mesh is becoming increasingly common, often used for insect control, ventilation, and privacy protection. In particular, diamond mesh and high-transparency mesh are widely used due to their superior performance, meeting diverse user needs.

[0003] There are currently various mesh installation structures on the market, such as Figures 1 to 3 As shown, these installation structures are designed to facilitate user installation and replacement of the mesh. These structures are typically designed according to the type of mesh, with common options including installation solutions specifically for diamond mesh or high-transparency mesh.

[0004] However, these existing mesh installation structures have design limitations, failing to accommodate different types of mesh simultaneously, thus restricting their application range. Therefore, there is an urgent need to propose a new mesh installation structure to solve the above problems and improve its applicability and flexibility. Utility Model Content

[0005] The purpose of this utility model is to provide a mesh installation structure with strong versatility.

[0006] The technical solution adopted by this utility model to solve the above problems is: a mesh installation structure, comprising:

[0007] The first profile has a first receiving groove.

[0008] The mesh includes an installation section, one side of which is fitted to the side of the first profile where the first receiving groove is provided.

[0009] The second profile is fastened to the first profile so that the mesh is clamped between the first profile and the second profile, and the second profile is located on the side of the first profile where the first receiving groove is provided.

[0010] A fastener is configured to, when the mesh is fixed, contact the mesh in an abutting manner and press a portion of the mesh into the first receiving groove, and the fastener is interference-fitted with the first receiving groove; or the fastener is configured to, when the mesh is fixed, contact the mesh in an abutting manner and make the side of the mesh away from the second profile abut against the first profile, and the fastener is fixedly connected to the first profile.

[0011] Preferably, the first profile includes a first forming surface, the first receiving groove is formed on the first forming surface, and a first fastening member is provided on the first forming surface.

[0012] The second profile includes a second forming surface. The second profile is provided with a second fastening member and a protruding structure on the second forming surface. The second fastening member is fastened to the first fastening member, and the side of the protruding structure facing the first profile abuts against the side of the installation section of the mesh away from the first forming surface. This causes the second profile to be subjected to both a tensile force towards the first profile and a pushing force away from the first profile, thereby restricting the second profile at the first forming surface of the first profile, so that the mesh is clamped by the first profile and the second profile.

[0013] Preferably, the raised structure has an airtight layer on the side facing the first profile.

[0014] Preferably, the protrusion on the second profile is aligned with the first receiving groove on the first profile, and the contact area of ​​the protrusion when it abuts the mesh is greater than the orthogonal projection area of ​​the first receiving groove on the first molding surface, so as to clamp the mesh between the first profile and the second profile.

[0015] Preferably, the first forming surface of the first profile is further provided with a limiting structure. The limiting structure, the opposite side of the first fastening member, and the first forming surface together form a fastening space. There is a gap between the fastening space and the first receiving groove. This gap is defined as an intermediate region. The intermediate region is constructed with toothed grooves.

[0016] Preferably, the installation section of the mesh extends into the intermediate region.

[0017] The protruding structure abuts against the mesh, causing the side of the mesh facing away from the second profile to engage with the toothed groove, thereby increasing the friction between the mesh and the first profile.

[0018] Preferably, the limiting structure is provided with a supporting structure on the side facing the second fastener to abut against the side of the second fastener away from the first fastener, and the end of the limiting structure away from the first profile abuts against the side of the second profile facing the first profile.

[0019] Preferably, the fastener is configured to contact the mesh in an abutting manner and press a portion of the mesh into the first receiving groove when the mesh is fixed, and the fastener and the first receiving groove are interference-fitted, as specifically described below:

[0020] The fastener is an elastic member that abuts against the mesh and presses the installation section of the mesh into the first receiving groove. The elastic member is also interference-fitted with the first receiving groove, so that the installation section of the mesh located in the first receiving groove is clamped between the elastic member and the first profile.

[0021] Preferably, the mesh is a high-permeability mesh.

[0022] Preferably, the fastener is configured to contact the mesh in an abutting manner when the mesh is fixed, and to abut the side of the mesh facing away from the second profile against the first profile, and the fastener is fixedly connected to the first profile, as specifically described below:

[0023] The mesh is made of diamond mesh.

[0024] The fastener is a screw, and the screw includes...

[0025] The nail head, including the pressing surface.

[0026] The nail body is located at the pressing surface of the nail head.

[0027] When the fastener is fixedly connected to the first profile, the nail body is threadedly connected to the first profile, and the pressing surface of the nail head abuts against the side of the mesh away from the first profile, so as to clamp the installation section of the mesh between the nail head and the first profile, thereby fixing the installation section of the mesh to the first profile.

[0028] Beneficial effects of the embodiments of this utility model

[0029] This mesh installation structure effectively addresses the different installation needs of high-transparency mesh and diamond mesh by incorporating fasteners with various functions. Specifically, during the installation of high-transparency mesh, the fasteners press the mesh portion into the first receiving groove through an abutment mechanism, achieving a stable interference fit. During the installation of diamond mesh, the fasteners abut against and are fixedly connected to the first profile, ensuring a tight connection between the mesh and the first profile and guaranteeing its stability. This mesh installation structure not only meets the compatibility requirements of different types of mesh but also improves the overall ease of installation and usability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the existing screen window installation structure, in which the screen mesh is installed by pressing with a pressure strip.

[0031] Figure 2 This is a schematic diagram of the existing screen window installation structure, in which the screen mesh is installed using self-tapping screws.

[0032] Figure 3 This is a schematic structural diagram illustrating the installation of the mesh screen by means of an interference fit between a fastener and the first receiving groove in one embodiment of the present invention.

[0033] Figure 4 This is an exploded view of an embodiment of the present invention in which the mesh is installed by interference fit between a fastener and a first receiving groove.

[0034] Figure 5 This is a perspective view of a specific embodiment of the present invention, showing how the mesh is installed by interference fit between a fastener and a first receiving groove.

[0035] Figure 6 This is a schematic structural diagram of another embodiment of the present invention, in which the mesh is installed by means of a fastener and a threaded connection to the first profile.

[0036] Figure 7 This is an exploded view of another embodiment of the present invention, showing the installation of the mesh completed by threaded connection between the fastener and the first profile.

[0037] Figure 8 This is a perspective view of another embodiment of the present invention, showing the installation of the mesh completed by threaded connection between the fastener and the first profile.

[0038] Wherein: 100, first profile; 110, first receiving groove; 120, first forming surface; 130, first fastening element; 140, limiting structure; 150, fastening space; 160, intermediate area; 161, toothed groove; 170, supporting structure; 200, mesh screen; 210, installation section; 300, second profile; 310, second forming surface; 320, second fastening element; 330, protruding structure; 340, airtight layer; 400, fastener. Detailed Implementation

[0039] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0040] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] See Figure 3 and Figure 6 A preferred embodiment of this application provides a mesh 200 mounting structure, including a first profile 100, a mesh 200, a second profile 300, and a fastener 400. The first profile 100 has a first receiving groove 110. The mesh 200 includes a mounting section 210, one side of which is fitted against the side of the first profile 100 with the first receiving groove 110. The second profile 300 is fastened to the first profile 100, so that the mesh 200 is clamped between the first profile 100 and the second profile 300, with the second profile 300 located on the side of the first profile 100 with the first receiving groove 110. The fastener 400 is used to fix... The fastener 400 is configured to contact the mesh 200 in an abutting manner when the mesh 200 is fixed, and to press part of the mesh 200 into the first receiving groove 110, and the fastener 400 is interference-fitted with the first receiving groove 110. Alternatively, the fastener 400 is configured to contact the mesh 200 in an abutting manner when the mesh 200 is fixed, and to abut the side of the mesh 200 away from the second profile 300 against the first profile 100, and the fastener 400 is fixedly connected to the first profile 100.

[0043] The first profile 100 is an integral structure with a first receiving groove 110 on its surface. This groove accommodates a portion of the mesh 200 during installation of the high-transparency mesh. The design of the first receiving groove 110 ensures that the mesh 200 can be embedded within it during installation, providing a good fixation effect. The mesh 200 includes an installation section 210, one side of which fits against the side of the first profile 100 where the first receiving groove 110 is located. This design allows the mesh 200 to fit tightly during installation, preventing loosening and displacement, and ensuring stability. The second profile 300 is connected to the first profile 100 via a snap-fit ​​connection, forming a clamping structure to firmly hold the mesh 200 between the first profile 100 and the second profile 300. The second profile 300 is positioned on one side of the first receiving groove 110 on the first profile 100, providing additional support when fixing the mesh 200.

[0044] like Figures 3 to 5 As shown, in one embodiment, when the mesh 200 is a high-transparency mesh, the fastener 400 is configured to contact the mesh 200 by abutting when the mesh 200 is fixed, thereby pressing part of the mesh 200 into the first receiving groove 110. At this time, the interference fit between the fastener 400 and the first receiving groove 110 ensures the reliability of the fixing effect and avoids the mesh 200 from loosening during use.

[0045] like Figures 6 to 8 As shown, in another embodiment, when the mesh 200 is a diamond mesh, the fastener 400 can also tightly connect the mesh 200 to the first profile 100 by abutting against and being fixedly connected to the first profile 100, thereby achieving the fixation of the mesh 200.

[0046] The installation structure of the mesh 200 can meet the installation needs of high-transparency mesh or diamond mesh by selecting fasteners 400 with different functions. During the installation of high-transparency mesh, the fasteners 400 can press a portion of the mesh 200 into the first receiving groove 110 through abutment, achieving a stable interference fit. During the installation of diamond mesh, the fasteners 400 abut and are fixedly connected to the first profile 100, ensuring a tight connection between the mesh 200 and the first profile 100, guaranteeing its stability. This installation structure not only meets the compatibility requirements of different types of mesh 200 but also improves the overall ease of installation and usability.

[0047] like Figure 3 and Figure 6 As shown, the first profile 100 further includes a first forming surface 120, a first receiving groove 110 is formed at the first forming surface 120, and a first fastening member 130 is provided at the first forming surface 120.

[0048] The second profile 300 includes a second forming surface 310. The second profile 300 is provided with a second fastening member 320 and a protruding structure 330 at the second forming surface 310. The second fastening member 320 is fastened to the first fastening member 130, and the side of the protruding structure 330 facing the first profile 100 abuts against the side of the installation section 210 of the mesh 200 away from the first forming surface 120. This causes the second profile 300 to be subjected to both a tensile force towards the first profile 100 and a pushing force away from the first profile 100, thereby restricting the second profile 300 at the first forming surface 120 of the first profile 100, so that the mesh 200 is clamped by the first profile 100 and the second profile 300.

[0049] The first fastener 130 and the second fastener 320 are designed to allow a reliable connection between them, ensuring a stable bond during installation. Specifically, during installation, the first profile 100 is subjected to a pushing force from the protruding structure 330 on the second profile 300 and a pulling force from the fastener 320. This bidirectional force design restricts the second profile 300 at the first forming surface 120, ensuring the stability of the clamping structure. Furthermore, the contact between the protruding structure 330 of the second profile 300 and the mesh 200 effectively counteracts displacement and tension changes caused by the external environment, thereby ensuring the fixation effect of the mesh 200 under different working conditions.

[0050] The screen 200 installation structure, through the cooperation of the first fastener 130, the second fastener 320 and the protruding structure 330, allows the screen 200 to be securely clamped between the first profile 100 and the second profile 300. This installation structure not only improves installation efficiency but also reduces installation difficulty, and significantly enhances the durability and stability of the screen window in harsh environments.

[0051] To further improve the clamping and fixing mechanism between the first profile 100 and the second profile 300 in the mesh 200 installation structure, the specific details are as follows:

[0052] An airtight layer 340 is provided on the side of the protruding structure 330 facing the first profile 100.

[0053] The airtight layer 340 is an elastic sealant made of flexible material, which effectively blocks the intrusion of external dust, improves the sealing and weather resistance of the mesh 200 installation structure, and reduces the amount of dust entering the first receiving groove 110. Taking silicone or rubber as an example, this type of airtight layer 340 can maintain good sealing performance under different climatic conditions, ensuring the long-term stability and service life of the mesh 200. The airtight layer 340 is located on the side of the raised structure 330 away from the second profile 300, and is positioned between the mesh 200 and the raised structure 330 after the first profile 100 and the second profile 300 are fastened together. This ensures that the mesh 200 is held in place while avoiding direct contact with the raised structure 330, thus preventing the mesh 200 from deforming and breaking under stress.

[0054] Furthermore, the protruding structure 330 on the second profile 300 is aligned with the first receiving groove 110 on the first profile 100, and the contact area of ​​the protruding structure 330 when it abuts against the mesh 200 is greater than the orthogonal projection area of ​​the first receiving groove 110 on the first molding surface 120, so that the part of the protruding structure 330 facing the first profile 100 coincides with the first plane, so that the mesh 200 can be clamped between the first profile 100 and the second profile 300 to complete the fixation of the mesh 200. The alignment of the protruding structure 330 with the first receiving groove 110, i.e., the alignment of the protruding structure 330 on the second profile 300 with the first receiving groove 110 on the first profile 100, makes the contact area between the protruding structure 330 and the mesh 200 larger than the orthogonal projection area of ​​the first receiving groove 110 on the first forming surface 120. This design ensures that when clamping the mesh 200, the protruding structure 330 can form effective contact with the mesh 200, thereby improving the clamping effect and ensuring that the mesh 200 can be firmly clamped between the first profile 100 and the second profile 300, preventing loosening caused by wind or other external forces.

[0055] Furthermore, to limit relative movement between the second profile 300 and the first profile 100 after fastening, a limiting structure 140 is provided on the first forming surface 120 of the first profile 100. The limiting structure 140 extends outward along the normal direction of the first forming surface 120. The limiting structure 140, the opposite side of the first fastening member 130, and the first forming surface 120 enclose a fastening space 150. There is a gap between the fastening space 150 and the first receiving groove 110, which is defined as an intermediate region 160. The intermediate region 160 is constructed with a toothed groove 161. The mounting section 210 of the mesh 200 extends to the intermediate region 160, and the protruding structure 330 abuts against the mesh 200, so that the side of the mounting section 210 of the mesh 200 away from the second profile 300 engages with the toothed groove 161, thereby increasing the friction between the mesh 200 and the first profile 100.

[0056] The protruding structure 330 abuts against the mesh 200, so that the side of the installation section 210 of the mesh 200 away from the second profile 300 engages with the tooth groove 161, thereby increasing the friction between the mesh 200 and the first profile 100. This design makes the mesh 200 less likely to slide or fall off when subjected to external forces, thus improving the stability of the overall structure.

[0057] Furthermore, a retaining structure 170 is provided on the side of the limiting structure 140 facing the second fastening member 320 to abut against the side of the second fastening member 320 opposite to the first fastening member 130. The end of the limiting structure 140 opposite to the first profile 100 abuts against the side of the second profile 300 facing the first profile 100, thus restricting the first fastening member 130 from easily disengaging after being fastened with the second fastening member 320. This retaining structure 170 abuts against the side of the second fastening member 320 opposite to the first fastening member 130 to reduce the probability of displacement of the second profile 300 after being fastened with the first profile 100, thereby enhancing the overall integrity and reliability of the structure.

[0058] like Figures 3 to 5 As shown, in one embodiment, the mesh 200 is a high-transparency mesh, and the fastener 400 is an elastic member. The elastic member abuts against the mesh 200 and presses the installation section 210 of the mesh 200 into the first receiving groove 110. The elastic member and the first receiving groove 110 are interference-fitted, so that the portion of the installation section 210 of the mesh 200 located in the first receiving groove 110 is clamped between the elastic member and the first profile 100.

[0059] The fastener 400 is designed as an elastic element, which is generally elongated and has several strip-shaped protrusions on its periphery. It is made of a highly elastic material, such as silicone or polyurethane, to generate effective resistance when in contact with the mesh 200. The interference fit between the elastic element and the first receiving groove 110 not only tightly clamps the mesh 200, but also allows for moderate deformation under external forces, ensuring the stable fixation of the mesh 200.

[0060] When the mesh 200 is fixed, the elastic member can press its installation section 210 into the first receiving groove 110 to form an effective clamping, thereby enhancing the friction between the mesh 200 and the first profile 100 and effectively preventing slippage or detachment caused by external force.

[0061] The installation structure of the mesh 200 uses an elastic element as a fixing element 400 and is designed to have an interference fit with the first receiving groove 110. Combined with the application of high-transparency mesh, the installation structure of the mesh 200 achieves a stable and reliable fixing effect, meeting the needs of various practical application scenarios. The design of the installation structure of the mesh 200 not only simplifies the installation process, but also improves the service life and safety of the mesh 200 in complex environments.

[0062] like Figures 6 to 8 As shown, in another embodiment, the mesh 200 is a diamond mesh, and the fastener 400 is a screw. The screw includes a head and a body, the head includes a pressing surface, and the body is disposed at the pressing surface of the head. When the fastener 400 is fixedly connected to the first profile 100, the body is threadedly connected to the first profile 100, and the pressing surface of the head abuts against the side of the mesh 200 away from the first profile 100, so as to clamp the mounting section 210 of the mesh 200 between the head and the first profile 100, thereby fixing the mounting section 210 of the mesh 200 to the first profile 100.

[0063] The fastener 400 is a screw, designed as a standard cylinder, mainly composed of a head and a body. The head is flat and round, with a pressing surface on its surface. The pressing surface contacts the mounting section 210 of the mesh 200 to apply pressure and ensure the stable fixation of the mesh 200. The body is cylindrical with threads machined on its outer circumference, allowing it to be threaded into the threaded holes on the first profile 100. The length and diameter of the body are designed according to actual needs to ensure sufficient fixing force in different installation environments.

[0064] When the screws are in place, the screw body is threaded into the first profile 100, and the pressing surface of the screw head abuts against the side of the mesh 200 away from the first profile 100, clamping the installation section 210 of the mesh 200 between the screw head and the first profile 100, thus achieving a stable fixation. When installing the mesh, the installer can use an electric screwdriver to easily screw the screws into the first profile 100. The pressing surface will apply pressure evenly, effectively preventing the mesh from shifting or loosening under external forces.

[0065] In this embodiment, the mesh 200 mounting structure uses a screw design to ensure a fixed connection between the mounting section 210 of the mesh 200 and the first profile 100. The pressure applied to the screw heads ensures uniform and stable clamping, thereby reducing the risk of slippage caused by external forces.

[0066] In summary, the installation structure of the mesh 200 of this utility model uses screws as fasteners 400, combined with the high strength of the diamond mesh, to ensure stability and safety in various environments. This design not only improves installation efficiency but also enhances the durability of the mesh 200 during long-term use, making it suitable for various scenarios and meeting users' safety needs.

[0067] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A mesh installation structure, characterized in that, include: A first profile, wherein the first profile is provided with a first receiving groove; The mesh includes an installation section, one side of which is fitted to the side of the first profile where the first receiving groove is provided; The second profile is fastened to the first profile so that the mesh is clamped between the first profile and the second profile, and the second profile is located on the side of the first profile where the first receiving groove is provided; A fastener is configured to, when the mesh is fixed, contact the mesh in an abutting manner and press a portion of the mesh into the first receiving groove, and the fastener is interference-fitted with the first receiving groove; or the fastener is configured to, when the mesh is fixed, contact the mesh in an abutting manner and make the side of the mesh away from the second profile abut against the first profile, and the fastener is fixedly connected to the first profile.

2. The mesh installation structure according to claim 1, characterized in that: The first profile includes a first forming surface, the first receiving groove is formed on the first forming surface, and a first fastening element is provided on the first forming surface; The second profile includes a second forming surface. The second profile is provided with a second fastening member and a protruding structure on the second forming surface. The second fastening member is fastened to the first fastening member, and the side of the protruding structure facing the first profile abuts against the side of the installation section of the mesh away from the first forming surface. This causes the second profile to be subjected to both a tensile force towards the first profile and a pushing force away from the first profile, thereby restricting the second profile at the first forming surface of the first profile, so that the mesh is clamped by the first profile and the second profile.

3. The mesh installation structure according to claim 2, characterized in that, An airtight layer is provided on the side of the protruding structure facing the first profile.

4. The mesh installation structure according to claim 2, characterized in that, The protruding structure on the second profile is aligned with the first receiving groove on the first profile, and the contact area of ​​the protruding structure when it abuts the mesh is greater than the orthogonal projection area of ​​the first receiving groove on the first molding surface, so as to clamp the mesh between the first profile and the second profile.

5. The mesh installation structure according to claim 4, characterized in that, The first forming surface of the first profile is also provided with a limiting structure. The limiting structure, the opposite side of the first fastening member, and the first forming surface together form a fastening space. There is a gap between the fastening space and the first receiving groove. This gap is defined as an intermediate region. The intermediate region is constructed with toothed grooves.

6. The mesh installation structure according to claim 5, characterized in that: The installation section of the mesh extends into the intermediate area; The protruding structure abuts against the mesh, causing the side of the mesh facing away from the second profile to engage with the toothed groove, thereby increasing the friction between the mesh and the first profile.

7. A mesh installation structure according to claim 6, characterized in that, The limiting structure has a supporting structure on the side facing the second fastener to abut against the side of the second fastener away from the first fastener, and the end of the limiting structure away from the first profile abuts against the side of the second profile facing the first profile.

8. A mesh installation structure according to any one of claims 1 to 7, characterized in that, The fastener is configured to contact the mesh in an abutting manner and press a portion of the mesh into the first receiving groove when the mesh is fixed, and the fastener and the first receiving groove are interference-fitted, as specifically described below: The fastener is an elastic member that abuts against the mesh and presses the installation section of the mesh into the first receiving groove. The elastic member is also interference-fitted with the first receiving groove, so that the installation section of the mesh located in the first receiving groove is clamped between the elastic member and the first profile.

9. A mesh installation structure according to claim 8, characterized in that, The mesh is a high-permeability mesh.

10. A mesh installation structure according to any one of claims 1 to 7, characterized in that, The fastener is configured to contact the mesh in an abutting manner when the mesh is fixed, and to abut the side of the mesh facing away from the second profile against the first profile, and the fastener is fixedly connected to the first profile, as described below: The mesh is a diamond mesh; The fastener is a screw, and the screw includes: Nail head, including the pressing surface; The nail body is disposed at the pressing surface of the nail head; When the fastener is fixedly connected to the first profile, the nail body is threadedly connected to the first profile, and the pressing surface of the nail head abuts against the side of the mesh away from the first profile, so as to clamp the installation section of the mesh between the nail head and the first profile, thereby fixing the installation section of the mesh to the first profile.

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