Warning device on sewer well lid

Abstract

The utility model relates to the technical field of municipal engineering, in particular to a warning device on a sewer well lid, which comprises a well lid body and a warning board, a mounting groove is arranged on the upper end face of the well lid body, two support plates are fixedly connected to the lower end face inside the mounting groove, and a support rod is arranged between the two support plates. Second connecting shafts are fixedly connected to the left sides of the front end face and the rear end face of the supporting rod, the two second connecting shafts are rotationally connected with the two supporting plates correspondingly, two lug plates are fixedly connected to the left side of the lower end face of the warning board, and first connecting shafts are fixedly connected to the right sides of the front end face and the rear end face of the supporting rod; through cooperation of the supporting plate, the supporting rod, the lug plate, the first connecting shaft, the second connecting shaft, a rotating disc, a first threaded hole, a first clamping hole, a second threaded hole, a second clamping hole, a first fixing bolt and a second fixing bolt, the supporting rod and the warning board can be fixed after being erected, the warning board and the well lid body are connected through the supporting rod, the height of the warning board is large when the warning board is erected, and the warning board is convenient to use. Pedestrians can perceive more easily, and the warning effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering, and specifically discloses a warning device on a sewer manhole cover. Background Art

[0002] In urban roads, multiple sewer openings are usually set. To prevent pedestrians from falling into the sewer, manhole covers are usually set at the wellhead positions. When it rains, rainwater will directly drain into the sewer through the manhole covers. However, in the case of heavy rainfall, in order to increase the drainage volume, the manhole covers are usually lifted or removed. But this will expose the sewer openings, which is easy to pose a danger to passing pedestrians.

[0003] Chinese Patent CN209277201U discloses a warning device on a sewer manhole cover, including a receiving tray and a manhole cover embedded in the sewer opening. A receiving plate is fixed on the inner wall of the receiving tray. A placement groove is provided on the surface of the receiving plate. An articulated groove communicating with the placement groove is also provided on the surface of the receiving plate. An articulated shaft is rotatably connected to the inner wall of the articulated groove. A receiving rod is fixed on the articulated shaft. The other end of the receiving rod is fixed with a warning disc, and the warning disc is placed in the placement groove. It can provide a warning function when the sewer is lifted.

[0004] For the warning device on a sewer manhole cover disclosed in the above document, its warning disc is directly rotatably connected to the receiving plate through the articulated shaft and the receiving rod. The height when the warning disc stands up is less than the diameter of the sewer manhole cover, which is not easily noticed by pedestrians and the warning effect is not good. Therefore, a warning device on a sewer manhole cover is needed to solve this problem. Summary of the Utility Model

[0005] The utility model provides a warning device on a sewer manhole cover. The warning sign is connected to the manhole cover body through a support rod. The height when the warning sign stands up is relatively high, which is more easily noticed by pedestrians and the warning effect is good.

[0006] The utility model is realized as follows: A warning device on a sewer manhole cover includes a manhole cover body and a warning sign. An installation groove is opened on the upper end surface of the manhole cover body. Two symmetrically distributed support plates are fixedly connected to the lower end surface inside the installation groove. A support rod is arranged between the two support plates. The left sides of the front and rear end surfaces of the support rod are fixedly connected with second connecting shafts respectively. The two second connecting shafts are rotatably connected to the two support plates respectively. The left side of the lower end surface of the warning sign is fixedly connected with two symmetrically distributed ear plates. The right sides of the front and rear end surfaces of the support rod are fixedly connected with first connecting shafts respectively. The two first connecting shafts are rotatably connected to the two ear plates respectively.

[0007] To facilitate the fixation of the warning sign, as an optimization of the warning device on the manhole cover of the present utility model, a plurality of circumferentially distributed first threaded holes are penetrated through the outer wall of the ear plate located on the front side, and a first fixing bolt is threadedly connected inside one of the first threaded holes. A first clamping hole is opened on the right side of the front end face of the support rod, and the rear end of the first fixing bolt extends into the first clamping hole.

[0008] To facilitate the fixation of the support rod, as an optimization of the warning device on the manhole cover of the present utility model, a turntable is fixedly connected to the front end face of the second coupling shaft located on the front side. A plurality of circumferentially distributed second threaded holes are opened on the outer wall of the turntable, and a second fixing bolt is threadedly connected inside one of the second threaded holes. A second clamping hole is opened on the left side of the front end face of the support plate located on the front side, and the rear end of the second fixing bolt extends into the second clamping hole.

[0009] To facilitate the lifting of the warning sign, as an optimization of the warning device on the manhole cover of the present utility model, two through grooves communicating with the installation groove are opened on the outer wall of the manhole cover body.

[0010] To facilitate water leakage, as an optimization of the warning device on the manhole cover of the present utility model, two symmetrically distributed water leakage holes are penetrated through the lower end face inside the installation groove.

[0011] To facilitate warning pedestrians on both sides of the warning sign, as an optimization of the warning device on the manhole cover of the present utility model, warning slogans are provided on both the upper and lower end faces of the warning sign.

[0012] To facilitate the rotation of the support rod and the warning sign, as an optimization of the warning device on the manhole cover of the present utility model, rounded corners are provided at both the left and right ends of the support rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For the warning device on the manhole cover, through the cooperation of the support plate, support rod, ear plate, first coupling shaft, second coupling shaft, turntable, first threaded hole, first clamping hole, second threaded hole, second clamping hole, first fixing bolt and second fixing bolt, the support rod and the warning sign can be fixed after being erected. The warning sign is connected to the manhole cover body through the support rod, so that the height of the warning sign when erected is relatively high, which is more easily noticed by pedestrians and has a good warning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of a warning device on a manhole cover of the present utility model;

[0016] Figure 2Structural diagram of a warning device on a sewer manhole cover of the present utility model after being erected;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of part A in;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of part B in;

[0019] Figure 5 Structural diagram of the manhole cover body of the present utility model;

[0020] Figure 6 Structural diagram of the support rod of the present utility model.

[0021] In the figure, 1. Manhole cover body; 2. Warning sign; 3. Installation groove; 4. Support plate; 5. Support rod; 6. Ear plate; 7. First coupling shaft; 8. Second coupling shaft; 9. Turntable; 10. First threaded hole; 11. First clamping hole; 12. Second threaded hole; 13. Second clamping hole; 14. First fixing bolt; 15. Second fixing bolt; 16. Through groove; 17. Leakage hole. Specific embodiments

[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, in the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0024] Please refer to Figures 1-6, A warning device on a sewer manhole cover, comprising a manhole cover body 1 and a warning sign 2. An installation groove 3 is opened on the upper end surface of the manhole cover body 1. Two symmetrically distributed support plates 4 are fixedly connected to the lower end surface inside the installation groove 3. A support rod 5 is arranged between the two support plates 4. On the left side of the front and rear end surfaces of the support rod 5, second connecting shafts 8 are fixedly connected respectively. The two second connecting shafts 8 are rotatably connected to the two support plates 4 respectively. On the left side of the lower end surface of the warning sign 2, two symmetrically distributed ear plates 6 are fixedly connected. On the right side of the front and rear end surfaces of the support rod 5, first connecting shafts 7 are fixedly connected respectively. The two first connecting shafts 7 are rotatably connected to the two ear plates 6 respectively.

[0025] In this embodiment: When the rainfall is large and the warning sign 2 needs to be used, both hands reach into the installation groove 3 through the through groove 16 to grab the warning sign 2, and pull the warning sign 2 upward, so that the support rod 5 rotates counterclockwise by 90° along the second connecting shaft 8, and the warning sign 2 rotates clockwise by 180° along the first connecting shaft 7 to erect the warning sign 2. Then, the support rod 5 and the warning sign 2 are fixed by the first fixing bolt 14, and the support rod 5 and the support plate 4 are fixed by the second fixing bolt 15. The warning sign 2 is connected to the manhole cover body 1 through the support rod 5, so that the height of the warning sign 2 when erected is relatively high, which is more easily noticed by pedestrians and has a good warning effect.

[0026] As a technical optimization scheme of the present utility model, a plurality of circumferentially distributed first threaded holes 10 are penetrated through the outer wall of the front ear plate 6. A first fixing bolt 14 is threadedly connected to the inside of one of the first threaded holes 10. A first clamping hole 11 is opened on the right side of the front end surface of the support rod 5. The rear end of the first fixing bolt 14 extends into the inside of the first clamping hole 11.

[0027] In this embodiment: When the warning sign 2 is not erected, the first fixing bolt 14 is not screwed into any of the first threaded holes 10, so that the support rod 5 and the warning sign 2 can rotate freely. After the warning sign 2 is erected, the first clamping hole 11 is aligned with one of the first threaded holes 10. By screwing the first fixing bolt 14 into this first threaded hole 10 and inserting the rear end of the first fixing bolt 14 into the first clamping hole 11, the support rod 5 and the ear plate 6 are fixed, that is, the support rod 5 and the warning sign 2 are fixed.

[0028] As a technical optimization scheme of the present utility model, a turntable 9 is fixedly connected to the front end surface of the front second connecting shaft 8. A plurality of circumferentially distributed second threaded holes 12 are opened on the outer wall of the turntable 9. A second fixing bolt 15 is threadedly connected to the inside of one of the second threaded holes 12. A second clamping hole 13 is opened on the left side of the front end surface of the front support plate 4. The rear end of the second fixing bolt 15 extends into the inside of the second clamping hole 13.

[0029] In this embodiment: When the support rod 5 is not erected, the second fixing bolt 15 is not screwed into any of the second threaded holes 12, so that the support rod 5 and the support plate 4 can rotate freely. After the support rod 5 is erected, the second card hole 13 is aligned with one of the second threaded holes 12. By screwing the second fixing bolt 15 into the second threaded hole 12 and inserting the rear end of the second fixing bolt 15 into the second card hole 13, the support rod 5 and the support plate 4 are fixed, that is, the support rod 5 and the well cover body 1 are fixed.

[0030] As a technical optimization scheme of the present utility model, two through grooves 16 communicating with the installation groove 3 are opened on the outer wall of the well cover body 1.

[0031] In this embodiment: By opening two through grooves 16 communicating with the installation groove 3 on the outer wall of the well cover body 1, it is convenient for the operator's hands to reach into the installation groove 3 to lift the warning sign 2.

[0032] As a technical optimization scheme of the present utility model, two symmetrically distributed water leakage holes 17 are penetrated through the lower end surface inside the installation groove 3.

[0033] In this embodiment: By penetrating and opening the water leakage holes 17 on the lower end surface inside the installation groove 3, it is convenient for rainwater to enter the sewer through the water leakage holes 17.

[0034] As a technical optimization scheme of the present utility model, warning slogans are provided on both the upper and lower end surfaces of the warning sign 2.

[0035] In this embodiment: By providing warning slogans on both the upper and lower end surfaces of the warning sign 2, it is convenient to warn pedestrians on both sides of the warning sign 2.

[0036] As a technical optimization scheme of the present utility model, rounded corners are provided at both the left and right ends of the support rod 5.

[0037] In this embodiment: By providing rounded corners at both the left and right ends of the support rod 5, it is convenient for the support rod 5 to rotate and prevent jamming.

[0038] The working principle and usage process of the present utility model: When it is necessary to use the warning sign 2 during heavy rainfall, both hands reach into the installation groove 3 through the through grooves 16 to grab the warning sign 2, and pull the warning sign 2 upward, so that the support rod 5 rotates counterclockwise by 90° along the second connecting shaft 8, and the warning sign 2 rotates clockwise by 180° along the first connecting shaft 7 to erect the warning sign 2. Then, the support rod 5 and the warning sign 2 are fixed by the first fixing bolt 14, and the support rod 5 and the support plate 4 are fixed by the second fixing bolt 15. The warning sign 2 is connected to the well cover body 1 through the support rod 5, so that the height of the warning sign 2 when erected is relatively high, which is more easily noticed by pedestrians and has a good warning effect.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A warning device on a sewer manhole cover, comprising a manhole cover body (1) and a warning sign (2), characterized in that: The upper end surface of the manhole cover body (1) is provided with a mounting groove (3), and the lower end surface inside the mounting groove (3) is fixedly connected to two symmetrically distributed support plates (4), a support rod (5) is arranged between the two support plates (4), and the left sides of the front and rear end surfaces of the support rod (5) are fixedly connected to second connecting shafts (8), and the two second connecting shafts (8) are respectively rotatably connected to the two support plates (4), and the left side of the lower end surface of the warning sign (2) is fixedly connected to two symmetrically distributed ear plates (6), and the right sides of the front and rear end surfaces of the support rod (5) are fixedly connected to first connecting shafts (7), and the two first connecting shafts (7) are respectively rotatably connected to the two ear plates (6).

2. The warning device on a manhole cover according to claim 1, characterized in that: A plurality of circumferentially distributed first threaded holes (10) are formed through the outer wall of the ear plate (6) at the front side, wherein the internal thread of one of the first threaded holes (10) is connected to a first fixing bolt (14), and a first clamping hole (11) is formed on the right side of the front end surface of the support rod (5), and the rear end of the first fixing bolt (14) extends into the interior of the first clamping hole (11).

3. The warning device on a manhole cover according to claim 1, characterized in that: A rotating disk (9) is fixedly connected to the front end surface of the second connecting shaft (8) located at the front side, and a plurality of circumferentially distributed second threaded holes (12) are provided on the outer wall of the rotating disk (9), wherein the internal thread of one of the second threaded holes (12) is connected to a second fixing bolt (15), and a second clamping hole (13) is provided on the left side of the front end surface of the support plate (4) located at the front side, and the rear end of the second fixing bolt (15) extends to the inside of the second clamping hole (13).

4. The warning device on a manhole cover according to claim 1, characterized in that: The outer wall of the manhole cover body (1) is provided with two through grooves (16) which are in communication with the mounting grooves (3).

5. The warning device on a sewer manhole cover according to claim 1, characterized in that: The lower end surface of the installation groove (3) is penetrated by two symmetrically distributed water leakage holes (17).

6. The warning device on a sewer manhole cover according to claim 1, characterized in that: Warning slogans are provided on both upper and lower end surfaces of the warning sign (2).

7. The warning device on a manhole cover according to claim 1, characterized in that: The left and right ends of the support rod (5) are both provided with rounded corners.

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