Hole curled cover plate

Abstract

The utility model discloses a hole curled cover plate which comprises rectangular frames and a panel fixedly arranged on the frames, the frames are arranged at equal intervals, a hinge piece is connected between every two adjacent frames, ground connecting structures are arranged at the two ends of each panel, and ground connecting structures are arranged on the panels located at the ends at equal intervals. The effects of improving the laying efficiency of the hole cover plate, the use safety and the hole sealing quality are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole cover plates, in particular to a hole curling cover plate. Background Art

[0002] There are many holes and trenches for observation, sampling and maintenance in the factory areas of environmental protection projects such as sewage treatment plants. If these holes and trenches are not properly sealed, they will endanger the personal safety of operators. At present, the commonly used sealing measures are to set up guardrails or covers of no less than 1.2m.

[0003] At present, the common types of covers include fixed-size grille covers and fully enclosed covers made of hot-dip galvanized steel, fiberglass and other anti-corrosion materials. To ensure the load-bearing reliability of the covers, the covers are made of thick and solid materials. The covers of some large-sized holes in sewage treatment plants are cut according to the hole size, or are spliced ​​from multiple fixed-size covers. The covers are large in size, heavy in weight, and inconvenient to open. There are also safety risks such as cover falling and personal injury during operation. Summary of the invention

[0004] The technical problem to be solved by the utility model is.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a perforated curled cover plate, including a rectangular frame and a panel fixed on the frame, the frames are arranged equidistantly, and hinges are connected between adjacent frames, ground connection structures are provided at both ends of the panel, and ground connection structures are equidistantly provided on the panel located at the end.

[0006] Preferably, the ground connection structure includes a limiting hole provided on the panel, a fixing pin arranged at the edge of the hole in the ground, and a locking piece vertically passing through the fixing pin, the fixing pin is located in the limiting hole, the bottom of the locking piece contacts the top surface of the panel when the locking piece is connected to the fixing pin, and the length of the locking piece is greater than the inner diameter of the limiting hole.

[0007] Preferably, the lock is U-shaped, and the two movable ends of the lock are inclined toward the separated ends, the distance between the two movable ends of the lock is greater than the inner diameter of the mounting hole of the lock in the fixing pin, and the thickness of the middle part of the lock is greater than the inner diameter of the mounting hole of the lock in the fixing pin.

[0008] Preferably, the hinged member includes a hinge shaft in the middle and a connecting plate rotatably connected to the hinge shaft, the connecting plate is L-shaped, and one end of the connecting plate is connected to the hinge shaft, and the other vertical section of the connecting plate is connected to the frame by bolts.

[0009] Preferably, the panel is located on the top of the frame, and the top surface of the panel and the top surface of the frame are located on the same plane.

[0010] Preferably, the hinges are equidistantly arranged at both ends and the middle of the frame.

[0011] 1. The utility model provides a curled cover plate for holes, which can achieve effective sealing of holes, solve the problem of inconvenient opening and closing operation of general fixed-size covers, reduce operational safety risks, and meet the needs of on-site odor sealing and collection.

[0012] 2. The curling cover can be fully closed and opened by curling and folding, which is convenient for rolling up the curling cover.

[0013] 3. The curled cover is fixed around the hole by a limit fixing device. The side away from the normally opened end is fixed with bolts or locks to ensure that the entire cover does not leave the hole when opened. The positioning pins on both sides are inserted into the limit holes to achieve displacement without being affected by external forces when closing.

[0014] 4. Angle steel is used as the frame to ensure the strength of the cover. Multiple frames are spliced ​​to form the main body of the cover, and the cover can be folded and rotated. When only part of the cover needs to be opened for observation, sampling or maintenance, only part of it needs to be opened, and the weight of the whole cover is light. The opened part is connected to the unopened part through a hinge, and there is no risk of the cover falling. The shape of a single frame is long and narrow, with a gap width of 5 cm, which can not only control the weight of each frame, but also effectively prevent the risk of stepping on and getting injured when walking on the cover.

[0015] 5. Use lightweight panels to cover and fix, which can isolate odor and prevent feet from stepping into the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 Magnified view of area A.

[0019] Figure 3 It is a schematic structural diagram of the end portion of the panel in an embodiment of the present utility model.

[0020] In the figure: 1. frame; 2. panel; 3. hole; 4. hinge; 5. limit hole; 6. fixing pin; 7. lock. DETAILED DESCRIPTION

[0021] like Figure 1-3As shown, the utility model provides a perforated curling cover, comprising a rectangular frame 1 and a panel 2 fixedly arranged on the frame 1, the frames 1 are arranged equidistantly, and hinges 4 are connected between adjacent frames 1, ground connection structures are arranged at both ends of the panel 2, and ground connection structures are arranged equidistantly on the panel 2 located at the end.

[0022] The curled cover is curled into a roll using a hinge 4, which is convenient for transportation of the curled cover. The panel 2 is fixed on the inner side of the frame 1 to fill the frame 1 and increase the strength of the frame 1, which can meet the on-site odor sealing and collection needs; the frame 1 is made of angle steel to ensure that the frame 1 has sufficient strength. When the curled cover is laid, the length of the frame 1 is greater than the width of the hole 3, so the hole 3 can be fully covered. After the hole 3 is completely covered by the frame 1, the ground connection structure is used to fix the curled cover to the ground outside the hole 3, and the ground connection structure is distributed on the entire edge of the curled cover, that is, the panel 2 at the end and both ends of all the panels 2 are equidistantly distributed.

[0023] like Figure 3 The ground connection structure comprises a limiting hole 5 provided on the panel 2, a fixing pin 6 arranged at the edge of the ground hole 3 and a locking member 7 vertically penetrating the fixing pin 6, the fixing pin 6 is located in the limiting hole 5, the bottom of the locking member 7 contacts the top surface of the panel 2 when the locking member 7 is connected to the fixing pin 6, and the length of the locking member 7 is greater than the inner diameter of the limiting hole 5.

[0024] The fixing pin 6 is fixed to the edge of the hole 3 by embedding it in the construction period or by expansion bolts or chemical anchor bolts after the construction, and is preset according to the position of the upper limit hole 5 on the panel 2 of the curled cover plate.

[0025] like Figure 3 As shown, in order to realize the vertical position limitation of the panel 2 by the lock 7, the lock 7 is U-shaped, and the two movable ends of the lock 7 are inclined toward the separated ends, the distance between the two movable ends of the lock 7 is greater than the inner diameter of the mounting hole of the lock 7 in the fixing pin 6, and the thickness of the middle part of the lock 7 is greater than the inner diameter of the mounting hole of the lock 7 in the fixing pin 6.

[0026] When installing the lock 7, the two movable ends of the lock 7 are relatively compressed to make the movable ends of the lock 7 close to each other, and then the movable ends of the lock 7 are inserted into the mounting hole of the fixing pin 6. Then the lock 7 is released, and the two movable ends of the lock 7 open under the action of elasticity. The distance between the two movable ends of the lock 7 and the width in the middle are both larger than the aperture of the mounting hole of the lock 7, so that the lock 7 can be stably installed in the fixing pin 6, and then the panel 2 is effectively supported by the lock 7.

[0027] like Figure 1 and Figure 2The hinge 4 comprises a hinge shaft in the middle and a connecting plate rotatably connected to the hinge shaft, the connecting plate is L-shaped, one end of the connecting plate is connected to the hinge shaft, and the other vertical section of the connecting plate is connected to the frame 1 by bolts.

[0028] The two ends of the hinge shaft of the hinge 4 are respectively rotatably mounted with connecting plates, and the two connecting plates are mirror-symmetrical along the hinge shaft and are respectively connected to the opposite side walls of two adjacent frames 1. The connecting plate is L-shaped, the movable section is perpendicular to the fixed section, and the movable section is connected to the frame 1 by bolts.

[0029] like Figure 1 and Figure 3 As shown. The panel 2 is located on the top of the frame 1, and the top surface of the panel 2 is located on the same plane as the top surface of the frame 1. If a person needs to walk on the hole 3, the top surface of the panel 2 is located on the same plane as the top surface of the frame 1, which can prevent the person from tripping while walking.

[0030] like Figure 1 As shown, in order to achieve a stable connection between adjacent frames 1, the hinges 4 are equidistantly arranged at both ends and the middle of the frame 1.

Claims

1. A hole curling cover plate, characterized in that: The invention comprises a rectangular frame (1) and a panel (2) fixedly arranged on the frame (1), wherein the frames (1) are arranged at equal intervals, and hinges (4) are connected between adjacent frames (1), and ground connection structures are arranged at both ends of the panel (2), and ground connection structures are arranged at equal intervals on the panel (2) located at the end.

2. A hole curling cover plate as claimed in claim 1, characterized in that: The ground connection structure comprises a limiting hole (5) provided on the panel (2), a fixing pin (6) arranged at the edge of the ground hole (3), and a locking piece (7) vertically penetrating the fixing pin (6); the fixing pin (6) is located in the limiting hole (5); when the locking piece (7) is connected to the fixing pin (6), the bottom of the locking piece (7) contacts the top surface of the panel (2); and the length of the locking piece (7) is greater than the inner diameter of the limiting hole (5).

3. A hole curling cover plate as claimed in claim 2, characterized in that: The locking member (7) is U-shaped, and the two movable ends of the locking member (7) are inclined toward the separated ends, the distance between the two movable ends of the locking member (7) is greater than the inner diameter of the mounting hole of the locking member (7) in the fixing pin (6), and the thickness of the middle part of the locking member (7) is greater than the inner diameter of the mounting hole of the locking member (7) in the fixing pin (6).

4. The hole curling cover plate according to claim 1, characterized in that: The hinged member (4) comprises a hinge shaft in the middle and a connecting plate rotatably connected to the hinge shaft, the connecting plate being L-shaped, one end of the connecting plate being connected to the hinge shaft, and the other vertical section of the connecting plate being connected to the frame (1) via bolts.

5. The hole curling cover plate according to claim 1, characterized in that: The panel (2) is located on the top of the frame (1), and the top surface of the panel (2) and the top surface of the frame (1) are located on the same plane.

6. A curled cover plate with holes according to any one of claims 1 to 5, characterized in that: The hinges (4) are arranged equidistantly at both ends and the middle of the frame (1).

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