Well lid capable of achieving self-charging

Abstract

The utility model relates to the technical field of well lids, and discloses a well lid capable of realizing self-charging, which comprises a well lid seat and a well lid body arranged on the well lid seat, a placing ring used for placing the well lid body is fixed on the inner side of the well lid seat, a positioning groove is arranged on the placing ring, and the well lid body is arranged in the positioning groove. A positioning groove is formed in the bottom of the well lid base, a positioning block matched with the positioning groove is fixed to the bottom of the well lid body, a piezoelectric generator is arranged at the bottom of the well lid body, a cavity is formed in the well lid base, insect repelling liquid is arranged in the cavity, a plurality of atomizing nozzles are arranged at the bottom of the containing ring, and the connecting pipe communicates with all the atomizing nozzles. When the well lid capable of achieving self-charging is applied, the device can effectively prevent insects and mice from entering buildings such as residential buildings through the well lid by means of the insect repelling liquid while generating electricity, meanwhile, the insects and the mice are prevented from entering electronic equipment such as the piezoelectric generator, normal operation of the device is prevented from being affected by the insects and the mice, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover capable of realizing self-charging. Background Art

[0002] A smart manhole cover is a manhole cover that integrates the Internet of Things, sensors and communication technologies. It is used to monitor, manage and maintain municipal facilities such as drainage systems, power lines and communication pipelines. The manhole cover is usually equipped with sensors. If the manhole cover is illegally opened or moved, the system will immediately send an alarm to prevent the manhole cover from being stolen or damaged.

[0003] After searching, a solar-powered manhole cover with announcement number CN211646482U includes a manhole cover tray and a solar power generation module arranged in the manhole cover tray. The solar power generation module includes a sealing layer, a solar panel, a protective layer and a light-transmitting wear layer from bottom to top. The sealing layer is connected to the solar panel through an adhesive layer, and the solar panel is connected to the protective layer through an adhesive layer. The manhole cover has a solar energy collection function, which can power the intelligent detection device of the manhole cover and meet the road application requirements. The solar power generation module and the manhole cover tray are manufactured separately, and they are an integrated structure after casting and molding, which is easy to manufacture and use. However, the above technical solution still has the following shortcomings when it is actually used:

[0004] When the self-charging manhole cover of the prior art is used, there may be stagnant water, food residues or other moist environments in the manhole, which are very attractive growth and reproduction environments for insects such as rats and cockroaches. These insects may take advantage of the holes or vents in the manhole cover to enter the interior of the building, causing inconvenience and health hazards to the residents' living environment. Secondly, since the self-charging module on the manhole cover generates heat during the power generation process, especially in seasons with low ambient temperatures, rats may be attracted by the heat and enter components such as generators, which will not only affect the normal operation of the generator, but may also cause safety hazards such as short circuits and fires, increasing maintenance costs.

[0005] Therefore, it is necessary to design a manhole cover that can realize self-charging to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a manhole cover that can realize self-charging.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A manhole cover capable of self-charging comprises a manhole cover seat and a manhole cover body mounted on the manhole cover seat, a placement ring for placing the manhole cover body being fixed on the inner side of the manhole cover seat, a positioning groove being provided on the placement ring, a positioning block matching the positioning groove being fixed on the bottom of the manhole cover body, a piezoelectric generator being provided at the bottom of the manhole cover body, a cavity being provided inside the manhole cover seat, an insect repellent liquid being provided in the cavity, a plurality of atomizing nozzles being provided at the bottom of the placement ring, a connecting pipe being provided on the inner side of the cavity, the connecting pipes being respectively connected to all the atomizing nozzles, and a driving component for driving the insect repellent liquid to be sprayed is provided on the manhole cover seat.

[0009] As a preferred technical solution of the utility model, the driving assembly includes an airbag, which is respectively fixed to the inner bottom surface of the positioning groove and the bottom of the positioning block, the side wall of the airbag is connected to an air inlet pipe and an air outlet pipe, and both the air inlet pipe and the air outlet pipe are provided with a one-way valve, and the limiting directions of the two one-way valves are opposite, a sliding plug is sealingly and slidingly connected in the cavity, the air outlet pipe is connected to the cavity, and the connection between the air outlet pipe and the cavity is located above the sliding plug, a number of springs are provided between the positioning groove and the positioning block, and the positioning groove and the positioning block are elastically connected by springs, and the driving assembly also includes a rotating part, which is used to drive the rotation of the atomizing nozzle.

[0010] As a preferred technical solution of the utility model, the rotating part includes a sliding rod fixed at the upper end position of the side wall of the airbag, the bottom end of the sliding rod extends to the bottom of the placement ring, and the sliding rod is slidably connected to the placement ring, the side wall of the sliding rod is fixedly connected with an extrusion block, the atomizing nozzle is rotatably connected to the bottom of the placement ring, a torsion spring is provided between the side wall of the atomizing nozzle and the placement ring, and the side wall of the atomizing nozzle is fixedly connected with a plurality of fixed blocks.

[0011] As a preferred technical solution of the utility model, the power generation material of the piezoelectric generator is fixedly connected to the inner top surface of the airbag, and the cross-section of the power generation material is a circular ring structure.

[0012] As a preferred technical solution of the utility model, all the springs are arranged at equal intervals in the circumferential direction, and the springs are located inside the airbag.

[0013] As a preferred technical solution of the utility model, all of the atomizing nozzles are arranged at equal intervals in the circumferential direction.

[0014] The utility model has the following beneficial effects:

[0015] 1. Insect repellent: The insect repellent device on the manhole cover can effectively prevent insects and rats from entering residential buildings through the manhole cover, thereby protecting the environment and the health of residents. Secondly, the atomizing nozzle can swing back and forth while spraying, so that the insect repellent can be fully sprayed and cover a wider area, ensuring the adequacy and uniformity of the insect repellent spraying, thereby improving the insect repellent effect;

[0016] 2. Protect the piezoelectric generator: By setting up insect repellent and driving components, when pedestrians or cars squeeze the manhole cover body, the insect repellent can be driven to spray out from the atomizing nozzle. This design prevents insects and rodents from entering electronic equipment such as piezoelectric generators, reduces the risk of damage to equipment due to line short circuit, ensures the reliable operation of the generator, and also reduces the maintenance cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a manhole cover capable of self-charging proposed by the utility model;

[0018] Figure 2 It is a structural schematic diagram of the manhole cover body;

[0019] Figure 3 It is a sectional stereoscopic view of the interior of the manhole cover seat;

[0020] Figure 4 for Figure 3 A magnified view of the structure at A;

[0021] Figure 5 Schematic diagram of the internal structure of the placement ring.

[0022] In the figure: 1 manhole cover seat, 2 manhole cover body, 3 placement ring, 4 positioning groove, 5 positioning block, 6 piezoelectric generator, 7 cavity, 8 insect repellent, 9 sliding plug, 10 connecting pipe, 11 atomizing nozzle, 12 air bag, 13 spring, 14 air inlet pipe, 15 air outlet pipe, 16 one-way valve, 17 sliding rod, 18 extrusion block, 19 fixing block, 20 torsion spring. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-5A manhole cover capable of self-charging comprises a manhole cover seat 1 and a manhole cover body 2 mounted on the manhole cover seat 1. A placement ring 3 for placing the manhole cover body 2 is fixed on the inner side of the manhole cover seat 1. A positioning groove 4 is provided on the placement ring 3. A positioning block 5 adapted to the positioning groove 4 is fixed to the bottom of the manhole cover body 2. A piezoelectric generator 6 is provided at the bottom of the manhole cover body 2. Specifically, the piezoelectric generator 6 is a device capable of converting mechanical energy into electrical energy, which mainly depends on the properties of piezoelectric materials. Piezoelectric materials are generally ceramics. When piezoelectric materials are subjected to mechanical pressure, their internal structure is deformed, thereby generating electric charge. This phenomenon is called the piezoelectric effect. The electric energy generated by the piezoelectric generator 6 can be converted into electrical energy by a voltage stabilizer or the like. After being processed, it is stored in the battery for operation of the electronic equipment on the manhole cover body 2. A cavity 7 is provided inside the manhole cover seat 1, and an insect repellent liquid 8 is provided in the cavity 7. A plurality of atomizing nozzles 11 are provided at the bottom of the placement ring 3. All the atomizing nozzles 11 are arranged at equal intervals in the circumferential direction to ensure the uniformity and sufficiency of the spraying of the insect repellent liquid 8. A connecting pipe 10 is provided on the inner side of the cavity 7, and the connecting pipe 10 is respectively connected to all the atomizing nozzles 11. By setting the insect repellent liquid 8, insects and rodents can be driven away and the damage to the piezoelectric generator 6 by insects and rodents can be prevented. At the same time, insects and rodents can be prevented from drilling through the holes on the manhole cover body 2 to affect the living environment. A driving component for driving the insect repellent liquid 8 to spray is provided on the manhole cover seat 1.

[0025] Reference Figure 1-5The driving component includes an airbag 12. The power generation material of the piezoelectric generator 6 is fixedly connected to the inner top surface of the airbag 12. The airbag 12 protects the piezoelectric material and can prevent the piezoelectric material from being worn when squeezed. The cross-section of the power generation material is an annular structure. The voltage generated by the piezoelectric generator 6 is related to the area of ​​the piezoelectric material. Generally speaking, the output voltage of the piezoelectric generator 6 is proportional to the area of ​​the piezoelectric material, that is, a larger area means that more piezoelectric material can be subjected to external force, thereby generating more charge separation, and then generating a larger voltage. By using an annular piezoelectric material, the area of ​​the piezoelectric material that is squeezed can be increased as much as possible, thereby increasing the amount of electricity generated by the piezoelectric generator 6. The airbag 12 is fixed to the inner bottom surface of the positioning groove 4 and the bottom of the positioning block 5 respectively. The airbag 12 can buffer the positioning block 5 and the positioning groove 4, reducing the wear between the two. The side wall of the airbag 12 is connected to an air intake pipe 14 and the air outlet pipe 15, the air inlet pipe 14 and the air outlet pipe 15 are both provided with a one-way valve 16, and the limiting directions of the two one-way valves 16 are opposite, so that when the airbag 12 is compressed, the air inside it can only enter the cavity 7, on the contrary, the airbag 12 can suck the outside air into it, so that the device can be reused, and a sliding plug 9 is sealed and slidably connected in the cavity 7, the air outlet pipe 15 is connected to the cavity 7, and the connection between the air outlet pipe 15 and the cavity 7 is located above the sliding plug 9, and a plurality of springs 13 are provided between the positioning groove 4 and the positioning block 5, and the positioning groove 4 and the positioning block 5 are elastically connected by the springs 13, and all the springs 13 are arranged at equal intervals in the circumferential direction, so that the positioning block 5 is evenly stressed, ensuring the stability of the overall structure of the device, and the spring 13 is located inside the airbag 12, and the airbag 12 can protect the spring 13 and extend the service life of the device, and the driving assembly also includes a rotating member, which is used to drive the rotation of the atomizing nozzle 11.

[0026] Reference Figure 1-5 The rotating part includes a slide bar 17 fixed at the upper end position of the side wall of the airbag 12, the bottom end of the slide bar 17 extends to the bottom of the placement ring 3, and the slide bar 17 is slidably connected to the placement ring 3, the side wall of the slide bar 17 is fixedly connected with an extrusion block 18, the atomizing nozzle 11 is rotatably connected to the bottom of the placement ring 3, a torsion spring 20 is provided between the side wall of the atomizing nozzle 11 and the placement ring 3, and a plurality of fixed blocks 19 are fixedly connected to the side wall of the atomizing nozzle 11. When the extrusion block 18 squeezes the fixed block 19, the fixed block 19 and the atomizing nozzle 11 can rotate, and the extrusion block 18 and the fixed block 19 are both hemispherical, which reduces the contact area between the two, thereby reducing the wear caused by extrusion.

[0027] The specific working principle of the utility model is as follows:

[0028] When a pedestrian or a vehicle is above the manhole cover body 2, it will squeeze the manhole cover body 2 downward, causing the positioning block 5 to move downward in the positioning groove 4 and squeeze the piezoelectric material of the airbag 12 and the piezoelectric generator 6. At this time, the spring 13 is in a compressed state. The piezoelectric material will generate voltage when subjected to force, which is then converted into electrical energy and stored in the battery to supply the operation of electronic equipment such as sensors or electronic locks on the manhole cover body 2. At the same time, the air in the airbag 12 is squeezed into the air outlet pipe 15, and then enters the cavity 7 and squeezes the slide plug 9 downward. The lower part of the slide plug 9 The movement will squeeze the insect repellent liquid 8, so that the insect repellent liquid 8 enters the connecting pipe 10 and is sprayed out through the atomizing nozzle 11, thereby repelling insects from the opening of the manhole cover seat 1. On the contrary, when the manhole cover body 2 is not squeezed, under the action of the spring 13, the manhole cover body 2 and the positioning block 5 move up and reset, and the outside air enters the air bag 12 through the air inlet pipe 14. Through this design, on the one hand, it can prevent insects and rats from drilling into residential buildings and other buildings through the holes on the manhole cover body 2 to affect the environment, and on the other hand, it can prevent insects and rats from entering the piezoelectric generator 6 to affect the normal power generation of the device;

[0029] Furthermore, in the process of the airbag 12 being squeezed, the upper end of the airbag 12 will move downward, thereby driving the slide rod 17 and the squeezing block 18 to move downward. When the squeezing block 18 contacts one of the fixed blocks 19, the squeezing block 18 will squeeze the fixed block 19 to cause the atomizing nozzle 11 to rotate. Conversely, when the squeezing block 18 is not in contact with the fixed block 19, under the action of the torsion spring 20, the atomizing nozzle 11 reverses and resets. As the squeezing block 18 moves downward, the atomizing nozzle 11 will reciprocate multiple times, which can increase the spraying area of ​​the atomizing nozzle 11, ensure the sufficiency and uniformity of the spraying of the insect repellent liquid 8, and thus ensure the insect repellent effect of the manhole cover body 2.

[0030] 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 manhole cover capable of self-charging, comprising a manhole cover seat (1) and a manhole cover body (2) mounted on the manhole cover seat (1), characterized in that: A placement ring (3) for placing the manhole cover body (2) is fixed on the inner side of the manhole cover seat (1), and a positioning groove (4) is provided on the placement ring (3). A positioning block (5) adapted to the positioning groove (4) is fixed on the bottom of the manhole cover body (2). A piezoelectric generator (6) is provided at the bottom of the manhole cover body (2). A cavity (7) is provided inside the manhole cover seat (1), and an insect repellent liquid (8) is provided in the cavity (7). A plurality of atomizing nozzles (11) are provided at the bottom of the placement ring (3), and a connecting pipe (10) is provided inside the cavity (7). The connecting pipe (10) is respectively connected to all the atomizing nozzles (11). A driving component for driving the insect repellent liquid (8) to spray is provided on the manhole cover seat (1).

2. A self-charging manhole cover according to claim 1, characterized in that: The driving assembly comprises an air bag (12), wherein the air bag (12) is respectively fixed to the inner bottom surface of the positioning groove (4) and the bottom of the positioning block (5); an air inlet pipe (14) and an air outlet pipe (15) are connected to the side wall of the air bag (12); both the air inlet pipe (14) and the air outlet pipe (15) are provided with a one-way valve (16), and the flow limiting directions of the two one-way valves (16) are opposite; a sliding plug (9) is sealingly and slidably connected in the cavity (7); the air outlet pipe (15) is connected to the cavity (7), and the connection between the air outlet pipe (15) and the cavity (7) is located above the sliding plug (9); a plurality of springs (13) are provided between the positioning groove (4) and the positioning block (5), and the positioning groove (4) and the positioning block (5) are elastically connected via the springs (13); and the driving assembly further comprises a rotating member, which is used to drive the atomizing nozzle (11) to rotate.

3. A self-charging manhole cover according to claim 2, characterized in that: The rotating member comprises a slide bar (17) fixed at the upper end position of the side wall of the airbag (12), the bottom end of the slide bar (17) extends to the bottom of the placement ring (3), and the slide bar (17) is slidably connected to the placement ring (3), the side wall of the slide bar (17) is fixedly connected with an extrusion block (18), the atomizing nozzle (11) is rotatably connected to the bottom of the placement ring (3), a torsion spring (20) is provided between the side wall of the atomizing nozzle (11) and the placement ring (3), and the side wall of the atomizing nozzle (11) is fixedly connected with a plurality of fixing blocks (19).

4. A self-charging manhole cover according to claim 1, characterized in that: The power generation material of the piezoelectric generator (6) is fixedly connected to the inner top surface of the airbag (12), and the cross section of the power generation material is a circular ring structure.

5. A self-charging manhole cover according to claim 2, characterized in that: All the springs (13) are arranged at equal intervals in the circumferential direction, and the springs (13) are located inside the airbag (12).

6. A self-charging manhole cover according to claim 3, characterized in that: All the atomizing nozzles (11) are arranged at equal intervals in the circumferential direction.

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