Inspection well cover capable of automatically increasing displacement

Abstract

The invention relates to an inspection well lid capable of automatically increasing water discharge. The inspection well lid comprises a well lid body and a water inlet formed in the well lid body. A plurality of springs are arranged on the water tank, one ends of the springs are fixed to the bottom of the well lid, and the other ends of the springs are fixed to the water tank; the water tank is hung at the bottom of the well lid through springs; the water inlet holes comprise a plurality of first holes, a plurality of second holes and a plurality of third holes; a plurality of second piston rods and a plurality of third piston rods are fixed on the water tank, second piston heads matched with the second holes are arranged at the tops of the second piston rods, and third piston heads matched with the third holes are arranged at the tops of the third piston rods; the bottom of the water tank is provided with a water tank water outlet, and the inner side wall of the water tank is provided with a plurality of water outlets. According to the manhole cover, when the rainfall is large, the second hole and the third hole of the manhole cover can be opened, water entering the water tank can be discharged from the water outlets in the inner side wall of the water tank, the water discharge amount is increased, water accumulation on the road surface is effectively avoided, and the manhole cover has great market application and popularization value.

Description

Technical Field

[0001] The invention relates to a manhole cover capable of automatically increasing drainage volume, belonging to the technical field of manhole cover design. Background Art

[0002] A manhole cover is a cover plate that covers the entrance and exit of underground pipes or underground facilities. It plays an important role in urban construction and management. In order to meet the drainage needs, existing manhole covers are often provided with a number of water inlet holes. However, considering the need to prevent debris from entering, the water inlet holes are often not set too large. However, such a defect is also obvious. When the rainfall is heavy, the water inlet holes on the manhole cover will not be able to drain water in time, and water will often accumulate on the road surface. Therefore, people need a manhole cover that can automatically increase the drainage volume when the rainfall is heavy. Summary of the invention

[0003] The purpose of the present invention is to provide a manhole cover which has a reasonable structure, is easy to use and can automatically increase the drainage volume in view of the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows: a manhole cover capable of automatically increasing the drainage volume, comprising a manhole cover and a water inlet hole arranged on the manhole cover; the characteristics are: A water tank is also provided, on which a plurality of springs are provided, one end of the plurality of springs is fixed to the bottom of the manhole cover, and the other end is fixed to the water tank; the water tank is suspended at the bottom of the manhole cover by the plurality of springs; The water inlet holes include a plurality of first holes, a plurality of second holes, and a plurality of third holes, and the apertures of the second holes and the third holes are both larger than the aperture of the first holes; A plurality of second piston rods and a plurality of third piston rods are fixed on the water tank, a second piston head matching the second hole is provided on the top of the second piston rod, and a third piston head matching the third hole is provided on the top of the third piston rod; The bottom of the water tank is provided with a water outlet, and the inner wall of the water tank is provided with a plurality of drainage ports; When the spring is reset, the second piston heads on the second piston rods are inserted into the corresponding second holes from the bottom of the manhole cover; the third piston heads on the third piston rods are inserted into the corresponding third holes from the bottom of the manhole cover; at this time, the second holes and the third holes of the manhole cover are in a closed state; When there is a lot of water in the water tank and the water level rises to several drain outlets, the weight of the water tank can pull the spring. When the spring stretches, several second piston heads are pulled out from the corresponding second holes, and several third piston heads are pulled out from the corresponding third holes. At this time, several second holes and several third holes of the manhole cover are in an open state.

[0005] One end of a plurality of springs is fixed to the bottom of the well cover, and the other end is fixed to the inner wall of the water tank.

[0006] A plurality of first holes are located at the center of the manhole cover; a plurality of second holes are located around the plurality of first holes; and a plurality of third holes are located around the plurality of second holes.

[0007] The second hole is a circular water inlet hole, and the third hole is a square water inlet hole.

[0008] The second hole is an elliptical water inlet hole, and the third hole is a triangular water inlet hole.

[0009] A limit frame is fixedly provided at the bottom of the manhole cover, a plurality of springs are fixed to the limit frame at the bottom of the manhole cover, and the water tank is suspended at the bottom of the manhole cover by a plurality of springs; The limit frame is provided with a plurality of second through holes which match the plurality of second piston rods one by one, and the limit frame is also provided with a plurality of third through holes which match the plurality of third piston rods one by one; the limit frame is sleeved on the plurality of second piston rods and the plurality of third piston rods through the plurality of second through holes and the plurality of third through holes, and the limit frame is fixed to the bottom of the manhole cover.

[0010] A method for using a manhole cover capable of automatically increasing drainage volume, characterized in that: A. By default, the spring is in a reset state, the second piston heads on the second piston rods are inserted into the corresponding second holes from the bottom of the manhole cover; the third piston heads on the third piston rods are inserted into the corresponding third holes from the bottom of the manhole cover; the second holes and the third holes of the manhole cover are in a closed state; B. When it rains, the water on the ground flows into the water tank from the first holes of the manhole cover because the second holes and the third holes are in a closed state, and then is discharged from the water tank outlet at the bottom of the water tank; When the rainfall is heavy, water accumulates in the water tank, and the water level rises to a number of drainage ports, the weight of the water tank can pull the spring, the spring stretches, a number of second piston heads are drawn out from the corresponding second holes, and a number of third piston heads are drawn out from the corresponding third holes. At this time, a number of second holes and a number of third holes of the manhole cover are in an open state; At this time, the water on the ground enters the water tank from the first holes, the second holes and the third holes, and the water in the water tank is discharged from the water outlet of the water tank and the drain outlets, so that the water flow rate that can pass through the manhole cover is increased and regulated to avoid water accumulation on the ground; When the rainfall decreases or stops, the water level in the water tank decreases, and the spring gradually returns to its original position until the second piston head is inserted into the corresponding second hole and the third piston head is inserted into the corresponding third hole; the second holes and the third holes of the manhole cover are in a closed state.

[0011] The present invention has a reasonable structure and is easy to use. Through the present invention, the existing manhole cover is improved, mainly in that the existing manhole cover is improved, a water tank is suspended at the bottom of the manhole cover by a plurality of springs, and a plurality of first holes, a plurality of second holes, and a plurality of third holes are arranged on the manhole cover, the apertures of the second holes and the apertures of the third holes are both larger than the apertures of the first holes; a plurality of second piston rods and a plurality of third piston rods are fixed on the water tank, a second piston head is arranged at the top of the second piston rod, and a third piston head is arranged at the top of the third piston rod; a water tank outlet is arranged at the bottom of the water tank, and a plurality of drainage outlets are arranged on the inner wall of the water tank.

[0012] By default, the spring is reset, and the second piston heads on the plurality of second piston rods are inserted into the corresponding second holes from the bottom of the manhole cover; the third piston heads on the plurality of third piston rods are inserted into the corresponding third holes from the bottom of the manhole cover; at this time, the plurality of second holes and the plurality of third holes of the manhole cover are in a closed state; When the rainfall is heavy, there is a lot of water in the water tank, and the water level rises to the drain ports, the weight of the water tank can pull the spring, the spring stretches, and the second piston heads are pulled out from the corresponding second holes, and the third piston heads are pulled out from the corresponding third holes. At this time, the second holes and the third holes of the manhole cover are in an open state. At this time, water can also enter the water tank from the second holes and the third holes. In addition to being discharged from the water tank outlet at the bottom, the water in the water tank can also be discharged from the drain ports on the inner wall of the water tank.

[0013] When the rainfall is small or the rain stops, the water level in the water tank drops, and the spring gradually resets until the second piston head is inserted into the corresponding second hole, and the third piston head is inserted into the corresponding third hole; the second holes and the third holes of the manhole cover are in a closed state.

[0014] In the present invention, one end of the spring is fixed to the bottom of the manhole cover, and the other end is fixed to the inner wall of the water tank. A plurality of first holes are located at the center of the manhole cover; a plurality of second holes are located around the plurality of first holes; and a plurality of third holes are located around the plurality of second holes. With such a layout, the first hole, the second hole, and the third hole are more reasonable. As for the selection of the shape of the hole, the second hole is a circular water inlet hole, and the third hole is a square water inlet hole. Alternatively, the second hole is an elliptical water inlet hole, and the third hole is a triangular water inlet hole.

[0015] In addition, in the present invention, a limit frame can be fixedly set at the bottom of the manhole cover, and a plurality of springs are fixed to the limit frame at the bottom of the manhole cover, so that the water tank is suspended at the bottom of the manhole cover through the plurality of springs; a plurality of second perforations that match the plurality of second piston rods are provided on the limit frame, and a plurality of third perforations that match the plurality of third piston rods are also provided on the limit frame; the limit frame is sleeved on the plurality of second piston rods and the plurality of third piston rods through the plurality of second perforations and the plurality of third perforations, and the limit frame is fixed to the bottom of the manhole cover. This has the advantage that the stability of the up and down movement of the water tank is improved, so that the water tank maintains vertical up and down movement.

[0016] Through the present invention, when the rainfall is heavy, the second hole and the third hole of the manhole cover can be opened, and the water entering the water tank can be discharged from the multiple drainage ports on the inner wall of the water tank, thereby increasing the drainage volume and effectively avoiding water accumulation on the road. It has great market application and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the front part of the manhole cover in the present invention; Figure 2 It is a schematic diagram of the side structure of the water tank in the present invention; Figure 3 It is a schematic diagram of the front structure of the water tank in the present invention; In the figure: 1 manhole cover, 2 water tank, 3 spring, 4-1 first hole, 4-2 second hole, 4-3 third hole, 5 second piston rod, 6 third piston rod, 7 second piston head, 8 third piston head, 9 limit frame, 10 second perforation, 11 third perforation, 12 water tank outlet, 13 drain outlet. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and the accompanying drawings.

[0019] like Figure 1 , 2 As shown in Figure 3: A manhole cover that can automatically increase the drainage volume, including a manhole cover 1 and a water inlet hole arranged on the manhole cover 1; a water tank 2 is also provided, and a plurality of springs 3 are arranged on the water tank 2, one end of the plurality of springs 3 is fixed to the bottom of the manhole cover 1, and the other end is fixed to the water tank 2; the water tank 2 is suspended at the bottom of the manhole cover 1 by the plurality of springs 3.

[0020] In this embodiment, the water inlet holes include a plurality of first holes 4-1, a plurality of second holes 4-2, and a plurality of third holes 4-3. The apertures of the second holes 4-2 and the third holes 4-3 are both larger than the aperture of the first holes 4-1.

[0021] A plurality of second piston rods 5 and a plurality of third piston rods 6 are fixed on the water tank 2. A second piston head 7 matching the second hole 4-2 is arranged on the top of the second piston rod 5. A third piston head 8 matching the third hole 4-3 is arranged on the top of the third piston rod 6.

[0022] A water tank outlet 12 is provided at the bottom of the water tank 2, and a plurality of drain ports 13 are provided on the inner side wall of the water tank 2; When the spring 3 is reset, the second piston heads 7 on the second piston rods 5 are inserted into the corresponding second holes 4-2 from the bottom of the manhole cover 1; the third piston heads 8 on the third piston rods 6 are inserted into the corresponding third holes 4-3 from the bottom of the manhole cover 1; at this time, the second holes 4-2 and the third holes 4-3 of the manhole cover 1 are in a closed state; When there is a lot of water in the water tank 2 and the water level rises to a number of drain ports 13, the weight of the water tank 2 can pull the spring 3. When the spring 3 stretches, a number of second piston heads 7 are pulled out from the corresponding second holes 4-2, and a number of third piston heads 8 are pulled out from the corresponding third holes 4-3. At this time, the second holes 4-2 and the third holes 4-3 of the manhole cover 1 are in an open state.

[0023] Furthermore, one end of the plurality of springs 3 is fixed to the bottom of the manhole cover 1 , and the other end is fixed to the inner wall of the water tank 2 .

[0024] A plurality of first holes 4-1 are located at the center of the manhole cover 1; a plurality of second holes 4-2 are located around the plurality of first holes 4-1; and a plurality of third holes 4-3 are located around the plurality of second holes 4-2.

[0025] In terms of shape selection, the second hole 4-2 is a circular or elliptical water inlet hole, and the third hole 4-3 is a square or triangular water inlet hole.

[0026] Furthermore, in order to improve stability, a limit frame 9 is fixedly provided at the bottom of the manhole cover 1, a plurality of springs 3 are fixed to the limit frame 9 at the bottom of the manhole cover 1, and the water tank 2 is suspended at the bottom of the manhole cover 1 through a plurality of springs 3; The limit frame 9 is provided with a plurality of second through holes 10 which match the plurality of second piston rods 5 one by one, and the limit frame 9 is also provided with a plurality of third through holes 11 which match the plurality of third piston rods 6 one by one; the limit frame 9 is sleeved on the plurality of second piston rods 5 and the plurality of third piston rods 6 through the plurality of second through holes 10 and the plurality of third through holes 11, and the limit frame 9 is fixed to the bottom of the manhole cover 1.

[0027] When using: A. By default, the spring 3 is in a reset state, the second piston heads 7 on the second piston rods 5 are inserted into the corresponding second holes 4-2 from the bottom of the manhole cover 1; the third piston heads 8 on the third piston rods 6 are inserted into the corresponding third holes 4-3 from the bottom of the manhole cover 1; the second holes 4-2 and the third holes 4-3 of the manhole cover 1 are in a closed state; B. When it rains, the water on the ground flows into the water tank 2 from the first holes 4-1 of the manhole cover 1 because the second holes 4-2 and the third holes 4-3 are in a closed state, and then is discharged from the water tank outlet 12 at the bottom of the water tank 2; When the rainfall is heavy and water accumulates in the water tank 2, and the water level rises to the plurality of drain ports 13, the weight of the water tank 2 can pull the spring 3, the spring 3 stretches, and the plurality of second piston heads 7 are withdrawn from the corresponding second holes 4-2, and the plurality of third piston heads 8 are withdrawn from the corresponding third holes 4-3. At this time, the plurality of second holes 4-2 and the plurality of third holes 4-3 of the manhole cover 1 are in an open state; At this time, the water on the ground enters the water tank 2 from the first holes 4-1, the second holes 4-2, and the third holes 4-3, and the water in the water tank 2 is discharged from the water tank outlet 12 and the drain ports 13; the water flow rate that can pass through the manhole cover 1 is increased and regulated to avoid water accumulation on the ground; When the rainfall decreases or the rain stops, the water level in the water tank 2 decreases, and the spring 3 gradually returns to its original position until the second piston head 7 is inserted into the corresponding second hole 4-2, and the third piston head 8 is inserted into the corresponding third hole 4-3; the second holes 4-2 and the third holes 4-3 of the manhole cover 1 are in a closed state.

Claims

1. A manhole cover capable of automatically increasing drainage volume, comprising a manhole cover (1) and a water inlet hole arranged on the manhole cover (1); wherein: A water tank (2) is also provided, and a plurality of springs (3) are provided on the water tank (2), one end of the plurality of springs (3) is fixed to the bottom of the manhole cover (1), and the other end is fixed to the water tank (2); the water tank (2) is suspended on the bottom of the manhole cover (1) by means of the plurality of springs (3); The water inlet holes include a plurality of first holes (4-1), a plurality of second holes (4-2), and a plurality of third holes (4-3); the diameters of the second holes (4-2) and the third holes (4-3) are both larger than the diameter of the first holes (4-1); A plurality of second piston rods (5) and a plurality of third piston rods (6) are fixed to the water tank (2); a second piston head (7) matching the second hole (4-2) is provided on the top of the second piston rod (5); and a third piston head (8) matching the third hole (4-3) is provided on the top of the third piston rod (6); The bottom of the water tank (2) is provided with a water tank water outlet (12), and the inner wall of the water tank (2) is provided with a plurality of drainage openings (13); When the spring (3) is reset, the second piston heads (7) on the plurality of second piston rods (5) are inserted into the corresponding second holes (4-2) from the bottom of the manhole cover (1); the third piston heads (8) on the plurality of third piston rods (6) are inserted into the corresponding third holes (4-3) from the bottom of the manhole cover (1); at this time, the plurality of second holes (4-2) and the plurality of third holes (4-3) of the manhole cover (1) are in a closed state; When there is a lot of water in the water tank (2) and the water level rises to the plurality of drain ports (13), the weight of the water tank (2) can pull the spring (3), and when the spring (3) stretches, the plurality of second piston heads (7) are drawn out from the corresponding second holes (4-2), and the plurality of third piston heads (8) are drawn out from the corresponding third holes (4-3). At this time, the plurality of second holes (4-2) and the plurality of third holes (4-3) of the manhole cover (1) are in an open state.

2. The manhole cover capable of automatically increasing drainage volume according to claim 1 is characterized in that: One end of a plurality of springs (3) is fixed to the bottom of the well cover (1), and the other end is fixed to the inner wall of the water tank (2).

3. The manhole cover capable of automatically increasing drainage volume according to claim 1 is characterized in that: A plurality of first holes (4-1) are located at the center of the manhole cover (1); a plurality of second holes (4-2) are located around the plurality of first holes (4-1); and a plurality of third holes (4-3) are located around the plurality of second holes (4-2).

4. A manhole cover capable of automatically increasing drainage volume according to claim 1 or 3, characterized in that: The second hole (4-2) is a circular water inlet hole, and the third hole (4-3) is a square water inlet hole.

5. A manhole cover capable of automatically increasing drainage volume according to claim 1 or 3, characterized in that: The second hole (4-2) is an elliptical water inlet hole, and the third hole (4-3) is a triangular water inlet hole.

6. The manhole cover capable of automatically increasing drainage volume according to claim 1 is characterized in that: A limit frame (9) is fixedly provided at the bottom of the manhole cover (1), a plurality of springs (3) are fixed to the limit frame (9) at the bottom of the manhole cover (1), and the water tank (2) is suspended at the bottom of the manhole cover (1) via the plurality of springs (3); The limit frame (9) is provided with a plurality of second through holes (10) that match the plurality of second piston rods (5) one by one, and the limit frame (9) is also provided with a plurality of third through holes (11) that match the plurality of third piston rods (6) one by one; the limit frame (9) is sleeved on the plurality of second piston rods (5) and the plurality of third piston rods (6) through the plurality of second through holes (10) and the plurality of third through holes (11), and the limit frame (9) is fixed to the bottom of the manhole cover (1).

7. A method for using a manhole cover capable of automatically increasing drainage volume according to any one of claims 1 to 6, characterized in that: A. By default, the spring (3) is in a reset state, the second piston heads (7) on the plurality of second piston rods (5) are inserted into the corresponding second holes (4-2) from the bottom of the manhole cover (1); the third piston heads (8) on the plurality of third piston rods (6) are inserted into the corresponding third holes (4-3) from the bottom of the manhole cover (1); the plurality of second holes (4-2) and the plurality of third holes (4-3) of the manhole cover (1) are in a closed state; B. When it rains, the water on the ground flows into the water tank (2) from the first holes (4-1) of the manhole cover (1) because the second holes (4-2) and the third holes (4-3) are in a closed state, and then is discharged from the water tank outlet (12) at the bottom of the water tank (2); When the rainfall is heavy and water accumulates in the water tank (2), and the water level rises to a plurality of drainage ports (13), the weight of the water tank (2) can pull the spring (3), the spring (3) stretches, the plurality of second piston heads (7) are drawn out from the corresponding second holes (4-2), and the plurality of third piston heads (8) are drawn out from the corresponding third holes (4-3). At this time, the plurality of second holes (4-2) and the plurality of third holes (4-3) of the manhole cover (1) are in an open state; At this time, water on the ground enters the water tank (2) from the plurality of first holes (4-1), the plurality of second holes (4-2), and the plurality of third holes (4-3), and the water in the water tank (2) is discharged from the water tank outlet (12) and the plurality of drainage outlets (13); thereby increasing and regulating the water flow rate that can pass through the well cover (1) and avoiding water accumulation on the ground; When the rainfall decreases or the rain stops, the water level in the water tank (2) decreases, and the spring (3) gradually returns to its original position until the second piston head (7) is inserted into the corresponding second hole (4-2), and the third piston head (8) is inserted into the corresponding third hole (4-3); the plurality of second holes (4-2) and the plurality of third holes (4-3) of the manhole cover (1) are in a closed state.

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