Connecting structure of screen plate and stand column and guardrail

Abstract

The connecting structure comprises a hoop connected to the stand column, a connecting block is fixedly connected to the hoop, the connecting block is arranged on the outer side wall of the hoop in a protruding mode in the transverse direction of the hoop, a fastener is connected to the connecting block in a threaded mode, and a limiting column head is arranged at the end, away from the connecting block, of the fastener. A hanging part is formed by a gap between the limiting column head and the connecting block and is used for hanging a hanging hole formed in the screen plate, and the size of the gap is changed along with rotation of the fastener. The connecting structure is adopted between the net plate and the stand column of the guardrail, so that the connecting structure of the net plate and the stand column enables the net plate and the hoop on the stand column to be connected or detached easily and conveniently, saves time and labor and is good in connecting stability.

Description

Technical Field

[0001] This application relates to the field of guardrail installation technology, specifically to a connection structure between a mesh panel and a post, and a guardrail. Background Technology

[0002] Guardrails are primarily used as dividers, partitions, or roadside protection barriers, and are also widely used in urban roads, elevated highways, and other construction projects. The structure of guardrails in related technologies includes a support frame and partitions connected to the support frame. To reduce the weight of the guardrail, these partitions are mostly made of mesh panels. For example, Chinese patent application CN213927835U, entitled "A Guardrail," discloses a structure including two posts and a mesh panel disposed between the two posts. Clamps are connected to the posts, and the clamps have upward-facing latches. The square tubes on the edges of the mesh panel have mounting holes that mate with the latches, and the mounting holes of the mesh panel engage with the latches of the clamps. Another example is patent application CN212359335U, entitled "An Industrial Safety Guardrail Clamp Connector," whose structure includes a clamp fitted onto the post and threaded holes on the side wall of the clamp. The mesh panel is screwed into the threaded holes to install the mesh panel onto the post.

[0003] The aforementioned technical guardrails have some defects in actual installation or use: The installation of the mesh panels using the mounting openings on the square tubes and the latches on the posts results in a gap between the mesh panels and the posts, making them prone to detachment, especially when the guardrail tilts. Furthermore, the weight of the mesh panels is often concentrated on the lower level of the posts, leading to uneven stress and poor stability of the connection. Guardrails using screws to connect the mesh panels to the posts have threaded holes on the clamps directly tapped into the sheet metal, resulting in shorter thread lengths and weaker connections. Moreover, disassembling the mesh panels requires completely removing the screws from the clamps, and reinstalling them individually makes both installation and disassembly time-consuming and labor-intensive. Utility Model Content

[0004] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a connection structure between the mesh panel and the column that makes it simple and convenient to connect or disassemble the mesh panel and the clamp, saves time and effort, and has good connection stability.

[0005] The technical solution of this application is to provide a connection structure for a mesh panel and a column having the following structure: a clamp connected to the column, a connecting block fixedly connected to the clamp, and the connecting block protruding laterally from the outer side wall of the clamp, a fastener threadedly connected to the connecting block, a limiting post head provided at the end of the fastener away from the connecting block, and a gap between the limiting post head and the connecting block forming a hooking part for hooking through the hanging holes provided on the mesh panel, wherein the size of the gap changes with the rotation of the fastener.

[0006] In some embodiments, the connecting block is provided with a threaded hole along the transverse direction of the clamp, the length of the threaded hole is greater than the wall thickness of the clamp, and the fastener is threaded into the threaded hole.

[0007] In some embodiments, the outer diameter of the limiting post is larger than the diameter of the hanging hole.

[0008] In some embodiments, the clamp is fitted onto the column and has two connecting ends, which are fastened by fastening screws to fix the clamp onto the column.

[0009] In some embodiments, the cross-section of the column is polygonal, and the clamp is a polygonal body that matches the column, with the connecting block connected to each outer side wall of the clamp.

[0010] In some embodiments, the connecting block is a nut welded to the clamp.

[0011] In some embodiments, the clamp has an opening, and the connecting block is connected to a plug end with an outer diameter smaller than that of the connecting block, the plug end being inserted into the opening.

[0012] In some embodiments, the hanging hole extends along the height direction of the mesh plate, and the lower end of the hanging hole penetrates the outer side wall of the mesh plate to form an opening for the fastener to be hung in the hanging hole.

[0013] In some embodiments, the inner wall of the opening on the side away from the hanging hole is configured as an inlet ramp to guide the fastener into the hanging hole.

[0014] In summary, the connection structure between the mesh panel and the column proposed in this application has the following advantages compared with related technologies: The connection structure connects a connecting block to the clamp of the column, and the connecting block protrudes from the outer wall of the clamp. A fastener is threaded onto the connecting block, and the gap between the limiting post head of the fastener and the connecting block forms a hook-up portion. The mesh panel has hook holes that mate with the hook-up portion of the fastener. After the hook holes are engaged with the hook-up portion of the fastener, rotating the fastener reduces the gap between the limiting post head and the connecting block, thus securing the mesh panel to the clamp. In other words, fasteners are pre-installed on the connecting block of the clamp. During mesh panel installation, the hook holes on the mesh panel are directly engaged with the fasteners, and then the fasteners are tightened to secure the mesh panel to the clamp. Furthermore, when disassembling the mesh panel, only the fasteners need to be loosened to remove the mesh panel, without needing to completely remove the fasteners from the connecting block, making the installation and disassembly of the mesh panel simple, convenient, time-saving, and labor-saving. Furthermore, compared to directly tapping the wall thickness of the clamp to form a threaded hole that matches the fastener, a longer threaded hole can be set on the connecting block protruding from the clamp, which makes the fastener connection more stable and firm, and can also effectively avoid the defect of column deformation caused by the free end of the fastener squeezing the column.

[0015] Another technical solution of this application is to provide a guardrail with the following structure, including posts and mesh panels, wherein the connection structure between the mesh panels and the posts adopts the connection structure of mesh panels and posts described in any of the above embodiments.

[0016] Compared with related technologies, the guardrail proposed in this application has the following advantages: The installation structure between the guardrail's mesh panel and the post adopts the connection structure of the mesh panel and post in any of the above embodiments. Therefore, during installation, the mesh panel is directly hooked onto the fastener's hooking part through the hanging holes, and then the fastener is tightened to secure the mesh panel to the clamp. Furthermore, when disassembling the mesh panel, it can be removed simply by loosening the fastener, without having to completely remove the fastener from the connecting block. This makes the installation and disassembly of the mesh panel simple, convenient, time-saving, and labor-saving. In addition, a longer internal thread can be provided on the connecting block protruding from the clamp, making the fastener connection more stable and secure. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a guardrail according to some embodiments of this application.

[0018] Figure 2 yes Figure 1 A magnified structural diagram of part A in the diagram.

[0019] Figure 3 This is a schematic diagram of the hanging hole structure of a connection structure between a mesh panel and a column according to some embodiments of this application.

[0020] Figure 4 This is a structural schematic diagram of a clamp for connecting a mesh panel and a column according to some embodiments of this application.

[0021] Figure 5 This is a cross-sectional structural schematic diagram of a clamp for connecting a mesh panel and a column according to some embodiments of this application.

[0022] Figure 6 This is a schematic diagram of a guardrail mesh assembly structure according to some embodiments of this application.

[0023] Figure 7 yes Figure 6 A magnified structural diagram of part B in the diagram.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Column, 2. Mesh panel, 200. Mesh panel, 201. Outer frame, 202. Connecting plate, 203. Hanging plate, 204. Hanging hole, 205. Opening, 206. Guide slope, 3. Clamp, 300. Connecting block, 301. Threaded hole, 302. Fastener, 303. Limiting column head, 304. Fastening screw, 305. Opening, 306. Plug-in end. Detailed Implementation

[0026] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0027] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] See Figures 1-5 As shown in the figure; this application discloses a connection structure between a mesh panel and a post, that is, a connection structure between the mesh panel 2 and the post 1 of the guardrail. The structure includes a clamp 3 connected to the post 1. A connecting block 300 is fixedly connected to the clamp 3, and the connecting block 300 is provided on the outer side wall of the clamp 3 with a lateral protrusion. A fastener 302 is threadedly connected to the connecting block 300. The fastener 302 is pre-threaded to the connecting block 300. A limiting post head 303 is provided at the end of the fastener 302 away from the connecting block 300. The gap between the limiting post head 303 and the outer end face of the connecting block 300 forms a hooking part. The mesh panel 2 is provided with a hooking hole 204 that matches the fastener 302. After the hooking hole 204 is hooked onto the fastener 302, the fastener 302 is rotated to reduce the gap between the limiting post head 303 and the connecting block 300, thereby fastening the mesh panel 2 to the clamp 3.

[0031] In this embodiment, after the hanging holes 204 on the mesh plate 2 are attached to the hanging parts of the fastener 302, the fastener 302 securely connects the mesh plate 2 to the clamp 3. That is, the fastener 302 is pre-installed on the connecting block 300 of the clamp 3. When installing the mesh plate 2, the hanging holes 204 on the mesh plate 2 are directly attached to the fastener 302, and then the fastener 302 is tightened to reduce the gap between the limiting post head 303 and the connecting block 300, thus securing the mesh plate 2 to the clamp 3. When disassembling the mesh plate 2, it is only necessary to loosen the fastener 302 to increase the gap between the limiting post head 303 and the connecting block 300, so that the mesh plate 2 can be removed without completely removing the fastener 302 from the connecting block 300. This makes the installation and disassembly of the mesh plate 2 simple, convenient, time-saving, and labor-saving.

[0032] In the above embodiment, the clamp 3 has a ring-shaped structure, which is sleeved on the column 1, and the clamp 3 has two connecting ends. The two connecting ends are fastened by fastening screws 304 to fix the clamp 3 to the column 1. The clamp 3 is a metal part, also called a clamp, and its shape is adapted to the shape of the column 1. Specifically, in this embodiment, the column 1 is a polygonal column with a cross-section, and the clamp 3 is a polygonal body that matches the column 1.

[0033] For example, see Figure 2 , Figure 4 and Figure 5As shown, the column 1 is a quadrilateral square tube, and the clamp 3 is also set as a quadrilateral body to match it. When the two connecting ends of the clamp 3 are fastened by the fastening screws 304, the clamp 3 is tightly clamped or fixed to the column 1. Of course, in other embodiments, the cross-section of the column 1 can also be circular, elliptical, triangular, etc., and the clamp 3 can also be set as a corresponding circular, elliptical, triangular, etc.

[0034] In this embodiment, the connecting block 300 connected to the outer wall of the clamp 3 is specifically a nut, which is generally fastened to the clamp 3 by welding. The connecting block 300 has a threaded hole 301 along the transverse direction of the clamp 3. The fastener 302 is threaded into the threaded hole 301, and the outer end of the fastener 302 is provided with a limiting post 303. The outer diameter of the limiting post 303 is larger than the diameter of the hanging hole 204. This avoids directly tapping the wall thickness of the clamp 3 to form a threaded hole. It's easy to understand that a threaded hole formed by tapping the wall thickness of the clamp 3 would be relatively short, typically the length of the clamp's wall thickness. However, compared to directly tapping the wall thickness of the clamp 3 to form a threaded hole 301 on the connecting block 300 for threaded connection of the fastener 302, a longer threaded hole 301 can be provided on the connecting block 300 protruding from the clamp 3. That is, the length of the threaded hole 301 on the connecting block 300 is greater than the wall thickness of the clamp 3. Alternatively, the thickness of the connecting block 300 can be set to be greater than the wall thickness of the clamp 3, thus allowing the threaded hole 301 on the connecting block 300 to be longer. Therefore, the connection of the fastener 302 is more stable and secure, and the defect of deformation of the column 1 due to excessive compression of the free end of the fastener 302 is effectively avoided.

[0035] In the above embodiments, see Figure 5 As shown, the connecting block 300 is fastened to the clamp 3 by welding. In order to make the connection between the connecting block 300 and the clamp 3 more secure, an opening 305 can be made on the clamp 3 first, and an insertion end 306 with an outer diameter smaller than the outer diameter of the connecting block 300 can be connected to the connecting block 300 so that the insertion end 306 is inserted into the opening 305. Then the connecting block 300 is welded to the clamp 3.

[0036] In some embodiments, see Figure 4 As shown, each outer side wall of the clamp 3 is connected to a connecting block 300 along the circumferential direction. This makes it easier to position the fastener 302 on the clamp 3 on one side of the mesh panel 2 when the clamp 3 is installed with the post 1, thus improving the flexibility of installation. Furthermore, when splicing the guardrail, fasteners 302 can be pre-installed on each connecting block 300 of the clamp 3 to facilitate the installation of the mesh panel 2 in different directions.

[0037] In this embodiment, to facilitate the connection between the hanging hole 204 on the mesh plate 2 and the fastener 302 on the clamp 3, the hanging hole 204 is configured to extend along the height direction of the mesh plate 2, and the lower end of the hanging hole 204 penetrates the outer side wall of the mesh plate 2 to form an opening 205 for the fastener 302 to be hung in the hanging hole 204. Specifically, in this embodiment, see [link to relevant documentation]. Figure 2 , Figure 3 and Figure 7 As shown, the hanging hole 204 is L-shaped, and the opening 205 of the hanging hole 204 is located at the lower end of the hanging hole 204. When installing the mesh plate 2, first align the opening 205 of the hanging hole 204 with the fastener 302, and then push the mesh plate 2 towards the fastener 302, so that the fastener 302 falls into the hanging hole 204 from the opening 205. The operation is simple and convenient.

[0038] To further facilitate the connection between the hanging holes 204 on the mesh plate 2 and the fasteners 302 on the clamp 3, in the above embodiment, an induction slope 206 is provided on the inner wall of the opening 205 away from the hanging hole 204 to guide the fasteners 302 into the hanging hole 204. That is, when the opening 205 of the hanging hole 204 is aligned with the fasteners 302 and the mesh plate 2 is pushed towards the fasteners 302, the induction slope 206 can guide the fasteners 302 into the hanging hole 204, thus making the connection of the mesh plate 2 simpler and more convenient; moreover, when removing the mesh plate 2, when the mesh plate 2 is lifted upward relative to the clamp 3, when the fasteners 302 come into contact with the induction slope 206, the fasteners 302 can automatically disengage from the hanging hole 204, thus making the removal of the mesh plate 2 more convenient and effortless.

[0039] Further in this embodiment, see Figure 2 , Figure 3 and Figure 7 As shown, the mesh panel 2 includes a metal outer frame 201 and a mesh panel 200 connected inside the outer frame 201. The outer frame 201 includes an integrally bent connecting plate 202 and a hanging plate 203. The hanging plate 203 is perpendicular to the connecting plate 202. The connecting plate 202 is fixedly connected to the edge of the mesh panel 200, preferably by welding. The hanging hole 204 is provided on the hanging plate 203, which facilitates the hanging operation of the hanging hole 204.

[0040] See Figure 1 , Figure 6 and Figure 7As shown; another embodiment of this application discloses a guardrail, which includes a post 1 and a mesh panel 2. The connection structure between the mesh panel 2 and the post 1 adopts the connection structure of the mesh panel and post of any of the above embodiments. Therefore, when installing the guardrail, the mesh panel 2 is directly hooked onto the hooking part of the fastener 302 through the hanging hole 204 on the mesh panel 2, and then the fastener 302 is tightened to secure the mesh panel 2 to the clamp 3. When disassembling the mesh panel 2, the mesh panel 2 can be removed simply by loosening the fastener 302, without having to completely remove the fastener 302 from the connecting block 300, thus making the installation or disassembly of the mesh panel 2 simple, convenient, time-saving, and labor-saving. In addition, a longer internal thread can be provided on the connecting block 300 protruding from the clamp 3, so that the connection of the fastener 302 is more stable and firm.

[0041] In this embodiment, at least two clamps 3 distributed along the height direction of the column 1 are connected to the column 1, and at least two hanging holes 204 connected to the clamps 3 are respectively provided on both sides of the mesh plate 2. See, for example, [example not provided]. Figure 6 As shown, each of the two columns 1 has a clamp 3 connected to its upper part and a clamp 3 connected to its lower part. The mesh plate 2 has two hanging holes 204 on each side, which are respectively connected to the upper clamp 3 and the lower clamp 3 of the column 1. After the hanging holes 204 of the mesh plate 2 are connected to the fasteners 302 on the clamp 3, the fasteners 302 are tightened one by one to fix the mesh plate 2 to the clamp 3 of the column 1. This makes the force on each clamp 3 uniform and avoids the situation where only the upper or lower clamp 3 is stressed. Therefore, the mesh plate connection has high stability.

[0042] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0043] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connection structure between a mesh panel and a column, characterized in that: The device includes a clamp connected to the column, a connecting block fixedly connected to the clamp, and the connecting block protruding laterally from the outer side wall of the clamp. A fastener is threaded onto the connecting block, and a limiting post is provided at the end of the fastener away from the connecting block. The gap between the limiting post and the connecting block forms a hooking part for hooking through the hanging holes on the mesh plate. The size of the gap changes with the rotation of the fastener.

2. The connection structure between the mesh panel and the column according to claim 1, characterized in that: The connecting block has a threaded hole along the transverse direction of the clamp, the length of the threaded hole is greater than the wall thickness of the clamp, and the fastener is threaded into the threaded hole.

3. The connection structure between the mesh panel and the column according to claim 1, characterized in that: The outer diameter of the limiting column head is larger than the diameter of the hanging hole.

4. The connection structure between the mesh panel and the column according to claim 1, characterized in that: The clamp is fitted onto the column and has two connecting ends, which are fastened by fastening screws to fix the clamp onto the column.

5. The connection structure between the mesh panel and the column according to claim 4, characterized in that: The column has a polygonal cross-section, and the clamp is a polygonal body that matches the column. Each outer wall of the clamp is connected to the connecting block.

6. The connection structure between the mesh panel and the column according to claim 1, characterized in that: The connecting block is a nut welded onto the clamp.

7. The connection structure between the mesh panel and the column according to claim 6, characterized in that: The clamp has an opening, and the connecting block is connected to a plug end with an outer diameter smaller than that of the connecting block. The plug end is inserted into the opening.

8. The connection structure between the mesh panel and the column according to claim 1, characterized in that: The hanging hole extends along the height direction of the mesh plate, and the lower end of the hanging hole penetrates the outer side wall of the mesh plate to form an opening for the fastener to be hung in the hanging hole.

9. The connection structure between the mesh panel and the column according to claim 8, characterized in that: The inner wall of the opening on the side away from the hanging hole is configured as an inlet ramp to guide the fastener into the hanging hole.

10. A guardrail, comprising posts and a mesh panel, characterized in that: The connection structure between the mesh panel and the column adopts the connection structure of the mesh panel and column as described in any one of claims 1 to 9.

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