Fastening device of glass fiber reinforced plastic bridge cover plate

Abstract

The utility model belongs to the technical field of fastening devices, and particularly relates to a glass fiber reinforced plastic bridge cover plate fastening device which comprises a bridge and a cover plate, the cover plate is arranged at the top end of the bridge, connecting lugs are arranged at one ends of the two sides of the cover plate, fixing assemblies clamped with the connecting lugs are arranged on the two sides of the bridge, and the cover plate is arranged at the top end of the bridge. The fixing assembly comprises a mounting base fixedly connected to one side of the bridge, a pull rod is rotationally connected to the middle of the mounting base, and a limiting head is arranged at the top end of the pull rod. According to the utility model, when the cover plate is mounted, the insertion plate at one end of the cover plate is covered by the convex plate on the adjacent cover plate, so that one end of the cover plate can be prevented from tilting, the sealing effect is improved, dust is prevented from entering the bridge from the gap, the other end of the cover plate is fixed through the fixing assembly, and the cover plate is integrally fixed; only one end of the cover plate needs to be fixed through the two fixing assemblies, the operation process is simple and convenient, and the cover plate is convenient to fix.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastening devices, and in particular relates to a fastening device for a glass fiber reinforced plastic bridge cover. Background Art

[0002] Cable trays are widely used in the petroleum, chemical, electric power, telecommunications and other industries. They are mainly used for the laying of overhead power cables, control cables, lighting lines, telecommunication cables, etc. The existing cable trays are mainly of four types: trough-type cable trays, tray-type cable trays, ladder-type cable trays and large-span cable trays. Regardless of the type of cable tray, it can also be divided into straight-through cable trays, curved cable trays, three-way cable trays and four-way cable trays. When using fire-proof cable trays, they need to be used in conjunction with cover plates. The cover plates can close the top of the cable tray to prevent dust and other debris from entering the interior of the cable tray.

[0003] Fiberglass has high strength but poor plasticity, making it difficult to connect the bridge and cover by snapping. The screw connection method requires installing a large number of screws, which not only has low installation efficiency, but also requires drilling holes in the bridge and cover, which can easily cause cracking. Utility Model Content

[0004] The purpose of the utility model is to provide a fastening device for a fiberglass bridge cover plate, which only needs to fix one end of the cover plate through two fixing components when fixing the cover plate. The operation process is simple and convenient for fixing the cover plate, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fastening device for a fiberglass bridge cover, comprising a bridge and a cover, the cover being arranged at the top of the bridge, one end of each side of the cover being provided with a connecting ear, both sides of the bridge being provided with a fixing assembly engaged with the connecting ear, the fixing assembly comprising a mounting seat fixedly connected to one side of the bridge, a pull rod being rotatably connected to the middle part of the mounting seat, a limiting head being provided at the top of the pull rod, an insert being provided at one end of the cover, and a convex plate for pressing the insert being provided at the other end of the cover.

[0006] Furthermore, a circular hole and a through groove are provided on the surface of the connecting ear, and one end of the through groove is connected to the circular hole.

[0007] Furthermore, the mounting seat includes a mounting plate fixedly connected to one side of the bridge frame, and a connecting plate is symmetrically provided on one side of the mounting plate. The bottom end of the pull rod is rotatably connected between the two connecting plates through a rotating shaft.

[0008] Furthermore, a threaded portion is provided on the top of the side wall of the pull rod.

[0009] Furthermore, the limit head includes an insert sleeve threadedly connected to the threaded part, the outer diameter of the insert sleeve is equal to the diameter of the circular hole, the top end of the insert sleeve is fixedly connected to the limit cylinder, the top end of the limit cylinder is fixedly connected to the handle, and the threaded part passes through the limit cylinder and the handle.

[0010] Furthermore, the top end of the pull rod is fixedly connected to an end plate.

[0011] Furthermore, the length of the inserting plate is equal to between one third and one half of the length of the convex plate.

[0012] Compared with the prior art, the beneficial effect of the present invention is that when installing the cover plate, the plug-in plate at one end of the cover plate is covered by the convex plate on the adjacent cover plate, which not only prevents one end of the cover plate from tilting up, but also improves the sealing effect to prevent dust from entering the bridge frame through the gap. The other end of the cover plate is fixed by a fixing component, thereby fixing the cover plate as a whole. When fixing the cover plate, only one end of the cover plate needs to be fixed by two fixing components. The operation process is simple and easy to fix the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the cover plate of the utility model;

[0015] Figure 3 It is a front view of the utility model;

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the figure.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Bridge; 2. Cover plate; 21. Connecting ear; 22. Round hole; 23. Through slot; 24. Protruding plate; 25. Insert plate; 3. Fixing assembly; 31. Mounting seat; 311. Mounting plate; 312. Connecting plate; 32. Pull rod; 321. Threaded portion; 33. Limiting head; 331. Insertion tube; 332. Limiting tube; 333. Handle; 34. End plate. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0020] like Figure 1 and 2As shown, a fastening device for a glass fiber reinforced plastic bridge cover comprises a bridge 1 and a cover 2, the cover 2 being arranged at the top of the bridge 1, and a connecting ear 21 being provided at one end on both sides of the cover 2, and a fixing assembly 3 engaging with the connecting ear 21 being provided on both sides of the bridge 1, the fixing assembly 3 comprising a mounting seat 31 fixedly connected to one side of the bridge 1, a pull rod 32 being rotatably connected to the middle part of the mounting seat 31, a limiting head 33 being provided at the top end of the pull rod 32, an inserting plate 25 being provided at one end of the cover 2, and a convex plate 24 for pressing the inserting plate 25 being provided at the other end of the cover 2.

[0021] According to the above structure, when installing the cover plate 2, the cover plate 2 is buckled on the top of the bridge frame 1 in sequence, and the plug plate 25 at one end of the cover plate 2 is covered by the convex plate 24 on the adjacent cover plate 2, which not only prevents one end of the cover plate 2 from tilting, but also improves the sealing effect to prevent dust from entering the bridge frame 1 through the gap. The other end of the cover plate 2 is fixed by the fixing component 3, and then the cover plate 2 is fixed as a whole. When fixing the cover plate 2, it is only necessary to fix one end of the cover plate 2 through two fixing components 3. The operation process is simple and easy to fix the cover plate 2.

[0022] like Figure 2-4 As shown, the surface of the connecting ear 21 is provided with a circular hole 22 and a through groove 23, one end of the through groove 23 is connected to the circular hole 22, the mounting seat 31 includes a mounting plate 311 fixedly connected to one side of the bridge frame 1, and a connecting plate 312 is symmetrically provided on one side of the mounting plate 311. The bottom end of the pull rod 32 is rotatably connected between the two connecting plates 312 through a rotating shaft, and a threaded portion 321 is provided on the top of the side wall of the pull rod 32. The limiting head 33 includes an insert 331 threadedly connected to the threaded portion 321, and the outer diameter of the insert 331 is equal to the diameter of the circular hole 22. The top end of the insert 331 is fixedly connected to the limiting cylinder 332, and the top end of the limiting cylinder 332 is fixedly connected to the handle 333. The threaded portion 321 passes through the limiting cylinder 332 and the handle 333.

[0023] According to the above structure, when fixing the end of the convex plate 24 of the cover plate 2, the pull rod 32 is rotated to make the top of the pull rod 32 pass through the through groove 23 to the inside of the circular hole 22, and then the handle 333 is twisted downward to make the insert 331 pass through the circular hole 22, and the bottom end of the limiting cylinder 332 contacts the top of the connecting ear 21. At this time, the insert 331 is pinned into the inside of the circular hole 22 to prevent the pull rod 32 from rotating backward and tilting, and under the squeezing of the limiting cylinder 332, the connecting ear 21 is limited to fix the end of the cover plate 2, and the fixing operation is simple and convenient.

[0024] like Figure 4 As shown, the top end of the pull rod 32 is fixedly connected to an end plate 34 .

[0025] According to the above structure, the provision of the end plate 34 can prevent the limiting head 33 from being screwed out of the threaded portion 321 as a whole, thereby preventing the limiting head 33 from falling off.

[0026] like Figure 2 As shown, the length of the inserting plate 25 is equal to between one third and one half of the length of the protruding plate 24 .

[0027] According to the above structure, when disassembling, the handle 333 is turned upward to unscrew the insert 331 from the inside of the circular hole 22, and the pull rod 32 can be reversed. Then, the cover plate 2 is pulled to the left to pull the insert plate 25 out of the protruding plate 24, so that the corresponding cover plate 2 can be taken out, making it easier to disassemble the corresponding cover plate 2.

[0028] The working principle of the present invention is as follows: when installing the cover plate 2, the cover plate 2 is buckled on the top of the bridge frame 1 in sequence, and the plug plate 25 at one end of the cover plate 2 is covered by the convex plate 24 on the adjacent cover plate 2, which not only prevents one end of the cover plate 2 from tilting, but also improves the sealing effect to prevent dust from entering the bridge frame 1 from the gap. The other end of the cover plate 2 is fixed by the fixing component 3, and then the cover plate 2 is fixed as a whole. When fixing the cover plate 2, it is only necessary to fix one end of the cover plate 2 through the two fixing components 3. The operation process is simple and convenient for fixing the cover plate 2. When fixing the convex plate 24 end of the cover plate 2, the top of the pull rod 32 is passed through the through slot 23 to the inside of the round hole 22 by rotating the pull rod 32, and then the handle 33 is twisted downward. When the cam 331 is in the unlock state, the cam 332 is in the unlock state, and the lock 331 is locked.

[0029] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A fastening device for a glass fiber reinforced plastic bridge cover, comprising a bridge (1) and a cover (2), characterized in that: The cover plate (2) is arranged at the top end of the bridge frame (1), and one end of both sides of the cover plate (2) is provided with a connecting ear (21), and both sides of the bridge frame (1) are provided with a fixing component (3) engaged with the connecting ear (21), and the fixing component (3) includes a mounting seat (31) fixedly connected to one side of the bridge frame (1), and the middle part of the mounting seat (31) is rotatably connected to a pull rod (32), and the top end of the pull rod (32) is provided with a limiting head (33), one end of the cover plate (2) is provided with an insert plate (25), and the other end of the cover plate (2) is provided with a convex plate (24) for pressing the insert plate (25).

2. The fastening device for a glass fiber reinforced plastic bridge cover according to claim 1, characterized in that: A circular hole (22) and a through groove (23) are provided on the surface of the connecting ear (21), and one end of the through groove (23) is communicated with the circular hole (22).

3. The fastening device for a fiberglass bridge cover according to claim 1, characterized in that: The mounting seat (31) includes a mounting plate (311) fixedly connected to one side of the bridge (1), a connecting plate (312) is symmetrically provided on one side of the mounting plate (311), and the bottom end of the pull rod (32) is rotatably connected between the two connecting plates (312) via a rotating shaft.

4. The fastening device for a fiberglass bridge cover according to claim 1, characterized in that: A threaded portion (321) is provided on the top of the side wall of the pull rod (32).

5. The fastening device for a fiberglass bridge cover according to claim 1, characterized in that: The limiting head (33) comprises an insert (331) threadedly connected to the threaded portion (321), the outer diameter of the insert (331) being equal to the diameter of the circular hole (22), the top end of the insert (331) being fixedly connected to the limiting cylinder (332), the top end of the limiting cylinder (332) being fixedly connected to a handle (333), and the threaded portion (321) passing through the limiting cylinder (332) and the handle (333).

6. The fastening device for a fiberglass bridge cover according to claim 1, characterized in that: The top end of the pull rod (32) is fixedly connected to an end plate (34).

7. The fastening device for a fiberglass bridge cover according to claim 1, characterized in that: The length of the inserting plate (25) is equal to between one third and one half of the length of the convex plate (24).

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