Well lid capable of preventing water accumulation

Abstract

The utility model relates to the technical field of municipal engineering, and particularly discloses a manhole cover capable of preventing water accumulation, which comprises a cover plate buckled at the upper end of a manhole cover seat, a protruding part is arranged at the upper end of the cover plate, a plurality of first flow guide grooves which are longitudinally arranged are formed in the upper end face of the protruding part, and a plurality of second flow guide grooves which are transversely arranged are formed in the upper end face of the protruding part. A drainage hole is formed in the junction of the second flow guide groove and the first flow guide groove and formed in the upper end face of the cover plate, a drainage window is formed in the upper end face of the cover plate, a protective cover covers the drainage window, and the protruding part surrounds the periphery of the protective cover. When the cover plate is closed, accumulated water on the road surface can be drained into a sewer through the drainage holes in the cover plate under the guide of the flow guide groove, when the drainage holes are blocked due to gravel accumulation in the accumulated water, the protective cover is pulled, the protective cover is moved away from the upper portion of the drainage window, the accumulated water can be rapidly drained through the drainage window, the drainage holes do not need to be cleaned, and the drainage mode of the well lid is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering, in particular to a manhole cover capable of preventing water accumulation. Background Art

[0002] Manhole covers used on ordinary municipal roads typically consist of a manhole ring and a cover body mounted on the ring. The cover body and the manhole ring, when engaged, form a flat surface flush with the road. These manhole covers can be used to block rainwater and debris from seeping into the well bottom. Existing manhole covers feature a rectangular raised ring on the cover body, a groove on the manhole ring that mates with the raised ring on the cover body, and a hinge connecting the edges of the cover body and the manhole ring.

[0003] For example, Chinese patent application number CN201420642471.8 discloses a manhole cover comprising: a manhole ring with a raised ring on its upper surface, the raised ring having a trapezoidal cross-section; a first annular groove formed between the raised ring and the outer edge of the manhole ring, the outer edge of the manhole ring having multiple drainage holes formed therein, the drainage holes communicating with the first annular groove; and a cover body with a second annular groove on its lower surface, which engages with the raised ring, the second annular groove having a trapezoidal cross-section. Water accumulated on the road surface is discharged into the sewer through the drainage holes on the outer edge of the manhole ring. During drainage, the accumulated water carries branches, leaves, and a large amount of gravel, which can cause the drain holes to become clogged. To prevent large-scale water accumulation, workers unclog the drain holes in the manhole cover. Since there are many drain holes on the manhole cover, the accumulated water often cannot be drained quickly during the unclogging process, resulting in low drainage efficiency. Utility Model Content

[0004] In response to the above problems, the present invention proposes a manhole cover that can prevent water accumulation, which is used to solve the problem that when draining water from the current manhole cover, in order to avoid large-scale water accumulation, the staff will dredge the blocked drainage holes on the manhole cover. There are many drainage holes on the manhole cover, and the accumulated water often cannot be discharged quickly during the dredging process.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a manhole cover capable of preventing water accumulation includes a cover plate buckled on the upper end of a manhole cover seat, the upper end of the cover plate is provided with a protrusion, and the protrusion is fixedly connected to the manhole cover seat:

[0006] The upper end surface of the protrusion is provided with a plurality of longitudinally arranged first guide grooves, the upper end surface of the protrusion is provided with a plurality of transversely arranged second guide grooves, and a drainage hole is provided at the intersection of the second guide grooves and the first guide grooves, and the drainage hole is provided on the upper end surface of the cover plate;

[0007] A drainage window is provided on the upper surface of the cover plate, and a protective cover is provided above the drainage window. The protrusion surrounds the protective cover. One end of the protective cover is rotatably connected to the cover plate through a first movable pin. A positioning plate structure is provided at the lower end of the protective cover. The positioning plate structure is inserted into the drainage window and snap-fitted with the drainage window.

[0008] Further improvements are: the positioning plate structure includes two movable plates and two positioning plates, the two positioning plates are fixedly connected to the two ends of the manhole cover seat, the two movable plates are fixedly connected to the lower end of the protective cover, and positioning holes are opened on the movable plates, which are engaged with the spring pins provided on the positioning plates.

[0009] A further improvement is that the spring latch includes a movable groove, which is opened on the side of the positioning plate facing the movable plate. A spring and a cylindrical pin are provided in the movable groove. The spring is fixedly connected to the movable groove, the cylindrical pin is fixedly connected to the spring, and the cylindrical pin is movably matched with the positioning hole.

[0010] A further improvement is that the side of the cylindrical pin facing the movable plate is a smooth curved surface.

[0011] A further improvement is that: a groove is provided at one end of the protective cover away from the first movable pin, a U-shaped handle is provided in the groove, and the U-shaped handle is hinged to the protective cover through a second movable pin.

[0012] Further improvements are: a positioning ring is provided at the lower end of the cover plate, the positioning ring is fixedly connected to the cover plate, the movable plate is inserted into the upper port of the manhole cover seat, the movable plate is slidably connected to the manhole cover seat, and the axes of the movable plate, cover plate and manhole cover seat coincide.

[0013] A further improvement is that: the inner side wall of the manhole cover seat is provided with a support block, the support blocks are evenly arranged in the circumferential direction of the axis of the manhole cover seat, the upper end surface of the support block contacts the lower end surface of the positioning ring, and the support block is fixedly connected to the manhole cover seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] When the cover is closed, the accumulated water on the road surface will be discharged into the sewer through the drainage holes on the cover under the guidance of the diversion groove. When the drainage holes are blocked due to the accumulation of gravel in the accumulated water, pull the protective cover and remove the protective cover from above the drainage window. The accumulated water will be quickly discharged through the drainage window without the need to clean the drainage hole. The drainage method of the manhole cover is flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a structural diagram of the top of the cover plate in the utility model.

[0018] Figure 2It is a structural diagram of the bottom of the cover plate in the utility model.

[0019] Figure 3 This is a structural diagram of the protective cover of the present invention when it is closed.

[0020] Figure 4 It is a structural diagram of the utility model when the protective cover is opened.

[0021] Figure 5 It is a structural diagram of the spring bayonet in the utility model.

[0022] Among them: 1. Manhole cover seat; 2. Cover plate; 3. Protrusion; 4. First guide groove; 5. Second guide groove; 6. Protective cover; 7. Groove; 8. First movable pin; 9. Drain hole; 10. Drain window; 11. Positioning plate; 12. Movable plate; 13. Positioning ring; 14. Support block; 15. U-shaped handle; 16. Second movable pin; 17. Positioning hole; 18. Spring latch. DETAILED DESCRIPTION

[0023] To further clarify the objectives, technical solutions, and advantages of the embodiments of this application, the following will provide a clear and complete description of the technical solutions in the embodiments of this application, in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] according to Figure 1 、 2 As shown in Figures 3, 4, and 5, a manhole cover capable of preventing water accumulation is proposed in this embodiment, comprising a cover plate 2 buckled on the upper end of a manhole cover seat 1, a protrusion 3 being provided on the upper end of the cover plate 2, and the protrusion 3 being fixedly connected to the manhole cover seat 1:

[0025] A plurality of longitudinally arranged first guide grooves 4 are provided on the upper end surface of the protrusion 3, and a plurality of transversely arranged second guide grooves 5 are provided on the upper end surface of the protrusion 3. A drainage hole 9 is provided at the intersection of the second guide groove 5 and the first guide groove 4. The drainage hole 9 is provided on the upper end surface of the cover plate 2; when the cover plate 2 is closed, the accumulated water on the road surface will be discharged into the sewer through the drainage holes 9 on the cover plate 2 under the guidance of the guide groove, and the larger branches and leaves in the accumulated water will be blocked on the outside of the first guide groove 4 and the second guide groove 5 at the upper end of the protrusion 3, ensuring that the drainage through the drainage hole 9 is unobstructed.

[0026] A drainage window 10 is provided on the upper end surface of the cover plate 2, and a protective cover 6 is provided above the drainage window 10. The protrusion 3 surrounds the protective cover 6. One end of the protective cover 6 is rotatably connected to the cover plate 2 through a first movable pin 8. A positioning plate structure is provided at the lower end of the protective cover 6. The positioning plate structure is inserted into the drainage window 10 and snap-fitted with the drainage window 10.

[0027] When the drainage hole 9 is blocked due to the accumulation of gravel in the accumulated water, and the accumulated water cannot be discharged into the sewer through the drainage hole 9, pull the protective cover 6 and remove the protective cover 6 from above the drainage window 10. The accumulated water will be quickly discharged through the drainage window 10. The drainage method of the manhole cover is flexible. The positioning plate is set at the lower end of the protective cover 6. When the protective cover 6 is set above the drainage window 10, the positioning plate will be inserted into the drainage window 10 to limit the protective cover 6 from the lower end of the protective cover 6, which is safe and reliable.

[0028] About positioning structure:

[0029] The positioning plate structure includes two movable plates 12 and two positioning plates 11. The two positioning plates 11 are fixedly connected to the ends of the manhole cover base 1, and the two movable plates 12 are fixedly connected to the lower end of the protective cover 6. The movable plates 12 are provided with positioning holes 17, which engage with spring-loaded latches 18 provided on the positioning plates 11. When the protective cover 6 is closed, the movable plate 12 at the lower end of the protective cover 6 will abut between the two positioning plates 11, and the spring-loaded latches 18 on the positioning plates 11 will snap into the positioning holes 17 provided on the movable plate 12, thereby restricting the movement of the protective cover 6 by limiting the movement of the movable plate 12.

[0030] More specifically, the spring latch 18 includes a movable groove, which is provided on the side of the positioning plate 11 facing the movable plate 12. A spring and a cylindrical pin are disposed within the movable groove. The spring is fixedly connected to the movable groove, the cylindrical pin is fixedly connected to the spring, and the cylindrical pin is movably engaged with the positioning hole 17. Under the force of the spring, the cylindrical pin pops out of the movable groove and engages in the positioning hole 17, thereby restricting the movement of the movable plate 12.

[0031] In a preferred embodiment, the side of the cylindrical pin facing the movable plate 12 is a smooth curved surface. The advantage of this design is that when the drain window 10 is opened, the locking between the cylindrical pin and the positioning hole 17 can be released by pulling the protective cover 6 upward, and the protective cover 6 will not be locked.

[0032] To facilitate opening the drain window 10, a groove 7 is defined on the end of the protective cover 6, away from the first movable pin 8. A U-shaped handle 15 is located within the groove 7 and hingedly connected to the protective cover 6 via a second movable pin 16. To remove the protective cover 6 from the drain window 10, simply grasp the U-shaped handle 15 within the groove 7 and pull the cover 6 upward. Normally, the U-shaped handle 15 retracts within the groove 7, preventing vehicles or pedestrians from passing above the cover 2.

[0033] In a preferred embodiment, a positioning ring 13 is provided at the lower end of the cover plate 2, which is fixedly connected to the cover plate 2. The movable plate 12 is inserted into the upper end of the manhole cover base 1 and slidably connected to the manhole cover base 1. The axes of the movable plate 12, the cover plate 2, and the manhole cover base 1 coincide. When the cover plate 2 is placed on the upper end of the manhole cover base 1, the positioning ring 13 fixed to the lower end of the cover plate 2 will snap into the upper end of the manhole cover base 1, limiting the position of the cover plate 2 and enhancing the fit and stability of the manhole cover base 1 and the cover plate 2.

[0034] In a preferred embodiment, support blocks 14 are provided on the inner sidewall of the manhole cover base 1. The support blocks 14 are evenly arranged in the circumferential direction of the axis of the manhole cover base 1. The upper end faces of the support blocks 14 contact the lower end face of the positioning ring 13, and the support blocks 14 are fixedly connected to the manhole cover base 1. The support blocks 14 provided on the inner side of the manhole cover base 1 act as reinforcing ribs, supporting the positioning ring 13 from the lower end, further improving the structural strength of the connection between the manhole cover base 1 and the cover plate 2.

[0035] How this application works:

[0036] When the cover plate 2 is closed, water accumulated on the road surface is guided by the diversion grooves and discharged into the sewer through the drainage holes 9 on the cover plate 2. Large branches and leaves in the accumulated water are blocked outside the first and second diversion grooves 4 and 5 at the upper ends of the protrusions 3, ensuring smooth drainage through the drainage holes 9. If the drainage holes 9 become clogged due to the accumulation of gravel in the accumulated water, making it impossible for the accumulated water to be discharged into the sewer through the drainage holes 9, the protective cover 6 can be pulled away from the drainage window 10, and the accumulated water will be quickly discharged through the drainage window 10, providing a flexible drainage method for the manhole cover.

[0037] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0038] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A manhole cover capable of preventing water accumulation, comprising a cover plate (2) buckled on the upper end of a manhole cover base (1), characterized in that: The upper end of the cover plate (2) is provided with a protrusion (3), and the protrusion (3) is fixedly connected to the manhole cover seat (1); The upper end surface of the protruding portion (3) is provided with a plurality of first guide grooves (4) arranged longitudinally, the upper end surface of the protruding portion (3) is provided with a plurality of second guide grooves (5) arranged transversely, a drainage hole (9) is provided at the intersection of the second guide grooves (5) and the first guide grooves (4), and the drainage hole (9) is provided on the upper end surface of the cover plate (2); The upper end surface of the cover plate (2) is provided with a drainage window (10), and a protective cover (6) is provided above the drainage window (10). The protrusion (3) surrounds the protective cover (6), and one end of the protective cover (6) is rotatably connected to the cover plate (2) through a first movable pin (8). The lower end of the protective cover (6) is provided with a positioning plate structure, and the positioning plate structure is inserted into the drainage window (10) and is snap-fitted with the drainage window (10).

2. The water-proof manhole cover according to claim 1, characterized in that: The positioning plate structure comprises two movable plates (12) and two positioning plates (11), the two positioning plates (11) being fixedly connected to the two ends of the manhole cover seat (1), the two movable plates (12) being fixedly connected to the lower end of the protective cover (6), the movable plates (12) being provided with positioning holes (17), the positioning holes (17) being engaged with spring latches (18) provided on the positioning plates (11).

3. The water-proof manhole cover according to claim 2, characterized in that: The spring latch (18) includes a movable groove, which is opened on the side of the positioning plate (11) facing the movable plate (12). A spring and a cylindrical pin are provided in the movable groove. The spring is fixedly connected to the movable groove, the cylindrical pin is fixedly connected to the spring, and the cylindrical pin is movably matched with the positioning hole (17).

4. The water-proof manhole cover according to claim 3, characterized in that: The side of the cylindrical pin facing the movable plate (12) is a smooth curved surface.

5. The water-proof manhole cover according to claim 1, characterized in that: A groove (7) is provided at one end of the protective cover (6) away from the first movable pin (8), a U-shaped handle (15) is provided in the groove (7), and the U-shaped handle (15) is hinged to the protective cover (6) via a second movable pin (16).

6. The water-proof manhole cover according to claim 2, characterized in that: A positioning ring (13) is provided at the lower end of the cover plate (2), the positioning ring (13) is fixedly connected to the cover plate (2), the movable plate (12) is inserted into the upper port of the manhole cover seat (1), the movable plate (12) is slidably connected to the manhole cover seat (1), and the axes of the movable plate (12), the cover plate (2) and the manhole cover seat (1) coincide with each other.

7. The water-proof manhole cover according to claim 6, characterized in that: The inner side wall of the manhole cover seat (1) is provided with a support block (14), the support blocks (14) are evenly arranged in the circumferential direction of the axis of the manhole cover seat (1), the upper end surface of the support block (14) contacts the lower end surface of the positioning ring (13), and the support block (14) is fixedly connected to the manhole cover seat (1).

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