Anti-falling sewer cover plate

Abstract

The utility model discloses an anti-falling sewer cover plate, which relates to the technical field of sewer cover plates and comprises a protective cylinder ring, four ends of the top surface of the protective cylinder ring are welded with fixing seats, the top surfaces of the fixing seats are provided with holes, the top surface of the protective cylinder ring is covered with a cover plate, and the inner wall of the top surface of the protective cylinder ring is concavely provided with an annular groove for erecting the cover plate. A cylindrical table with a trapezoidal cross section is horizontally and fixedly connected to the bottom of the inner ring of the protective cylinder ring, and an anti-falling assembly is arranged at the top of the cylindrical table. According to the utility model, through the combination of the fixed cover and the movable cover, falling can be prevented without hindering the work of a worker; when the fixed cover and the movable cover are combined into a circle, falling can be prevented; when the fixed cover and the movable cover are combined into a semicircle, a worker can go down to work; and the primary protection effect of the well lid in use is improved, and a secondary protection effect on a sewer well mouth can be achieved through cooperation of the fixed lid and the movable lid in the well lid.

Description

Technical Field

[0001] The utility model relates to the technical field of sewer cover plates, in particular to a sewer cover plate that prevents falling. Background Art

[0002] Drainage systems were usually open ditches that people could walk into to clean out the sewage. The covers at that time were mainly simple wooden boards or stones used to cover the mouth of the drain or well to prevent people or animals from falling into it.

[0003] However, the existing single-plate manhole covers have the following safety hazards when in use: old or unmaintained manhole covers of this single-plate structure may cause traffic accidents or pedestrian falls due to their damage, instability or looseness; and the manhole covers are easy to be lifted and removed, and because they are removed or stolen, the sewer openings are left open, and the uncovered sewer openings are easy to cause people to fall into the sewer openings when there are no warning signs; therefore, the above problems need to be improved. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a fall-proof sewer cover.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fall-proof sewer cover, including a casing ring, the four ends of the top surface of the casing ring are welded with fixing seats, the top surface of the fixing seats is provided with holes, the top surface of the casing ring is covered with a cover plate, and the inner wall of the top surface of the casing ring is recessed with an annular groove for erecting the cover plate, the bottom of the inner ring of the casing ring is horizontally fixed with a cylindrical platform with a trapezoidal cross-section, and the top of the cylindrical platform is provided with an anti-fall assembly.

[0006] Preferably, the anti-fall assembly includes a fixed cover arranged at the top opening of the cylindrical table, a fixed ring horizontally fixed to the top of the fixed cover and a movable cover horizontally slidably arranged on the top of the fixed ring, and the fixed cover and the movable cover are both horizontally arranged semicircular plate structures; a positioning screw is vertically fixed at the center of the top surface of the fixed cover, a bolt is vertically penetrated at the center of the top surface of the movable cover, and the bottom end of the bolt is connected to the inside of the positioning screw.

[0007] Preferably, an arc-shaped wedge block is vertically fixed to the bottom of the fixed cover, an arc-shaped clamping strip is fixed to the upper outer wall of the cylindrical platform, and an arc-shaped strip opening cooperating with the clamping strip is opened on the upper inner arc surface of the wedge block.

[0008] Preferably, a plurality of water holes are equidistantly formed on the top surfaces of the fixed cover and the movable cover.

[0009] Preferably, a plurality of drainage holes are provided on the circumferential side of the bottom surface of the cylindrical platform, and a plurality of fan-shaped slag discharge openings are provided at equal intervals on the inclined surface section of the outer wall of the lower portion of the cylindrical platform.

[0010] Compared with the prior art, the beneficial effects of the utility model are: in the utility model, through the combination of the fixed cover and the movable cover, falling can be prevented without hindering the work of the staff; when the fixed cover and the movable cover are combined into a circle, falling can be prevented; when the fixed cover and the movable cover are combined into a semicircle, the staff can go down to work; the initial protective effect of the manhole cover when in use is improved, and the cooperation of the internal fixed cover and the movable cover can play a secondary protection role for the sewer manhole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0015] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model;

[0016] Figure 5 For the utility model Figure 4 Schematic diagram of the enlarged structure of part A in the middle.

[0017] Serial numbers in the figure: 1, casing ring; 2, fixed seat; 3, cover plate; 4, cylindrical table; 5, slag discharge port; 6, fixed cover; 7, wedge block; 8, movable cover; 9, fixed ring; 10, positioning screw tube; 11, bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Example: See Figure 1-5A fall-proof sewer cover in the utility model comprises a casing ring 1, and fixing seats 2 are welded at the four ends of the top surface of the casing ring 1, through which the device as a whole is fixed to the ground; a hole is opened on the top surface of the fixing seat 2, and a cover plate 3 is provided on the top surface of the casing ring 1 to prevent people from falling; and an annular groove for setting up the cover plate 3 is recessed on the inner wall of the top surface of the casing ring 1, and a cylindrical platform 4 with a trapezoidal cross section is horizontally fixed to the bottom of the inner ring of the casing ring 1, and the cylindrical platform 4 is convenient for supporting the fall-proof component; an anti-fall component is provided on the top of the cylindrical platform 4. The anti-falling assembly includes a fixed cover 6 arranged at the top opening of the cylindrical platform 4, a fixed ring 9 horizontally fixed to the top of the fixed cover 6, and a movable cover 8 horizontally slidably arranged on the top of the fixed ring 9. The fixed cover 6 is convenient for fixing the anti-falling assembly, the fixed ring 9 is convenient for fixing the height of the movable cover 8, and the movable cover 8 is convenient for rotation, and the movable cover 8 is convenient for workers to enter the sewer through the manhole cover; the fixed cover 6 and the movable cover 8 are both semicircular plate structures arranged horizontally; a positioning screw 10 is vertically fixed at the center of the top surface of the fixed cover 6, and the positioning screw 10 is convenient for the movable cover 8 to rotate with the positioning screw 10 as the center. A bolt 11 is vertically penetrated at the center of the top surface of the movable cover 8, and the bolt 11 is used to prevent the movable cover 8 from falling off; and the bottom end of the bolt 11 is connected to the inside of the positioning screw 10.

[0020] In the utility model, a curved strip-shaped wedge block 7 is vertically fixed to the bottom of the fixed cover 6, and the fixed cover 6 is conveniently clamped on the cylindrical platform 4 through the wedge block 7; a curved strip-shaped clamping strip is fixed to the upper part of the outer wall of the cylindrical platform 4, and a curved strip opening that cooperates with the clamping strip is opened on the upper part of the inner arc surface of the wedge block 7. Multiple water holes are evenly opened on the top surface of the fixed cover 6 and the movable cover 8. Multiple drainage holes are opened on the circumferential side of the bottom surface of the cylindrical platform 4, and multiple fan-shaped slag discharge openings 5 ​​are evenly opened on the inclined surface section of the lower outer wall of the cylindrical platform 4, and small and medium-sized debris can be easily discharged through the slag discharge openings 5.

[0021] Working principle: When the utility model is used, the fixing seat 2 is fixed to the ground by a screw rod. When the manhole cover 3 is opened, the water flowing into the casing ring 1 will be discharged through the hole at the connection between the cylindrical platform 4 and the casing ring 1 and the slag discharge port 5 on the inclined surface of the cylindrical platform 4 and the holes on the fixed cover 6 and the movable cover 8. When the object is large, it will be discharged through the slag discharge port 5; when installing the fixed cover 6, put the wedge block 7 into the hole at the upper end of the cylindrical platform 4, and then rotate the fixed cover 6 so that the wedge block 7 presses against the cylindrical platform 4 is rotated so that the fixed cover 6 is stuck on the inner side of the upper end of the cylindrical platform 4, and then the movable cover 8 is placed on the positioning screw 10, so that the slide groove on the bottom of the movable cover 8 is placed on the fixed ring 9, and then the bolt 11 is tightened; when no operation is performed, the fixed cover 6 and the movable cover 8 will form a circle to block the hole, that is, to prevent falling; when it is necessary to perform the operation, it is only necessary to rotate the movable cover 8 according to the fixed ring 9 so that the movable cover 8 and the fixed cover 6 overlap to form a semicircle, that is, the staff can go down to work.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fall-proof sewer cover, comprising a casing ring (1), characterized in that: The four ends of the top surface of the casing ring (1) are welded with fixing seats (2), the top surface of the fixing seats (2) is provided with holes, the top surface of the casing ring (1) is covered with a cover plate (3), and the inner wall of the top surface of the casing ring (1) is recessed with an annular groove for arranging the cover plate (3), the bottom of the inner ring of the casing ring (1) is horizontally fixed with a cylindrical platform (4) with a trapezoidal cross section, and the top of the cylindrical platform (4) is provided with an anti-falling component.

2. The anti-falling sewer cover according to claim 1, characterized in that: The anti-fall assembly comprises a fixed cover (6) arranged at the top opening of the cylindrical platform (4), a fixed ring (9) horizontally fixed to the top of the fixed cover (6), and a movable cover (8) horizontally slidably arranged on the top of the fixed ring (9), wherein the fixed cover (6) and the movable cover (8) are both semicircular plate structures arranged horizontally; a positioning screw tube (10) is vertically fixed at the center of the top surface of the fixed cover (6), a bolt (11) is vertically penetrated at the center of the top surface of the movable cover (8), and the bottom end of the bolt (11) is connected to the inside of the positioning screw tube (10).

3. The anti-falling sewer cover according to claim 2, characterized in that: An arc-shaped wedge block (7) is vertically fixed to the bottom of the fixed cover (6), an arc-shaped clamping strip is fixed to the upper part of the outer wall of the cylindrical platform (4), and an arc-shaped strip opening that cooperates with the clamping strip is opened on the upper part of the inner arc surface of the wedge block (7).

4. The anti-falling sewer cover according to claim 2, characterized in that: The top surfaces of the fixed cover (6) and the movable cover (8) are both provided with a plurality of water holes at equal distances.

5. The anti-falling sewer cover according to claim 2, characterized in that: A plurality of drainage holes are provided on the circumferential side of the bottom surface of the cylindrical platform (4), and a plurality of fan-shaped slag discharge openings (5) are provided at equal intervals on the inclined surface section of the lower outer wall of the cylindrical platform (4).

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