Smart manhole cover

Abstract

The present invention discloses an intelligent manhole cover, which includes a manhole body, one end of which is a manhole opening; a cover plate, which is arranged on the manhole opening of the manhole body; a first driving mechanism, which includes a driving member, a first sleeve column and a second sleeve column, which can be relatively movable in a vertical direction, the upper end of the first sleeve column is connected to the cover plate, and the lower end of the second sleeve column is connected to the manhole body; the driving member includes a first magnetic member and a second magnetic member arranged to be relatively attracted, an elastic component compressed and connected between the first sleeve column and the second sleeve column, and an electromagnetic component for generating a magnetic force when power is turned on to release the magnetic attraction state of the first magnetic member and the second magnetic member; when the magnetic attraction state of the first magnetic member and the second magnetic member is released, the elastic component drives the second sleeve column to rise in a vertical direction so that the cover plate opens the manhole opening. The technical solution of the present invention can realize the automatic opening of the manhole cover, and has the effects of energy saving and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and in particular to an intelligent manhole cover. Background Art

[0002] With the further acceleration of urbanization, the construction of municipal public facilities has developed rapidly. A large number of municipal equipment and assets need to be managed in municipal, power, communications and other departments. Among them, smart manhole covers have become an item that cannot be ignored. In case of continuous rainy weather, large areas of water will accumulate in some parts of the city due to the inability to drain the accumulated water in time. At the same time, a large amount of urban garbage will flow into the sewer with rainwater, causing sewer blockage and affecting the drainage function of the sewer. At present, most cities artificially move the smart manhole covers installed outside to increase urban drainage and avoid urban waterlogging. However, after moving the smart manhole covers, the wellheads are exposed, which is easy to cause accidental losses or injuries to pedestrians or vehicles on the road. In urban road renovation, the existing manhole covers generally need to protrude a certain height from the road surface after installation, and after opening the manhole covers, the wellheads are large, which is easy to cause harm to passing personnel and vehicles. Summary of the invention

[0003] The main purpose of the present invention is to provide an intelligent manhole cover, which aims to solve the problem that the manhole opening is exposed after the manhole cover is moved, which may easily cause unexpected losses or injuries to pedestrians or vehicles on the road.

[0004] To achieve the above object, the intelligent manhole cover proposed by the present invention comprises:

[0005] A well body, one end of which is a wellhead;

[0006] A cover plate, arranged on the wellhead of the well body;

[0007] A first driving mechanism comprises a driving member, a first sleeve column and a second sleeve column, wherein the first sleeve column and the second sleeve column are relatively movable in a vertical direction, an upper end of the second sleeve column is connected to the cover plate, and a lower end of the first sleeve column is connected to the well body;

[0008] The driving member includes a first magnetic member and a second magnetic member arranged to be attracted relative to each other, an elastic component compressed and connected between the first sleeve column and the second sleeve column, and an electromagnetic component used to generate a magnetic force when power is turned on to release the magnetic attraction state of the first magnetic member and the second magnetic member;

[0009] When the magnetic attraction state between the first magnetic member and the second magnetic member is released, the elastic component drives the second sleeve column to rise in the vertical direction, so that the cover plate opens the wellhead.

[0010] In one embodiment, the first magnetic member and the elastic component are arranged on the first sleeve column, and the second magnetic member is arranged on the second sleeve column;

[0011] There is one electromagnetic component, which is arranged on the first sleeve column or the second sleeve column, and is used to generate a magnetic force that repels one of the first magnetic component and the second magnetic component when powered on, so as to release the magnetic attraction state of the first magnetic component and the second magnetic component;

[0012] In one embodiment, the first magnetic member and the elastic component are arranged at one end of the first sleeve column close to the second sleeve column, and the second magnetic member is arranged at one end of the second sleeve column close to the first sleeve column; or,

[0013] The second sleeve column is sleeved in the first sleeve column, and the first magnetic component and the elastic component are arranged near one end of the first sleeve column away from the second sleeve column; the second magnetic component is arranged at one end of the second sleeve column close to the first sleeve column.

[0014] In one embodiment, the cover plates are provided in plurality, each of the cover plates is driven by at least one of the first driving mechanisms, and the plurality of cover plates are arranged in a ring from outside to inside;

[0015] Each of the cover plates rises vertically along the well body under the drive of its corresponding first driving mechanism to control the size of the water inlet of the wellhead. Multiple cover plates have at least a safe drainage state. In the safe drainage state, each of the cover plates rises to a corresponding predetermined height and forms multiple water inlets of different heights that are connected to the interior of the well body.

[0016] In one embodiment, in a safe drainage state, when each of the cover plates rises to a corresponding predetermined position, there is a height difference between them, so as to form a plurality of water inlets at different heights that are connected to the interior of the well body.

[0017] In one embodiment, the plurality of cover plates are raised to a predetermined height and arranged in a stepped state from inside to outside.

[0018] In one embodiment, a limiting portion is provided at the upper end of the first sleeve column, for limiting the separation of the first sleeve column and the second sleeve column in the vertical direction;

[0019] or,

[0020] A support platform is provided on the well body, each of the first sleeve columns is fixed on the support platform, and the support platform is detachably connected to the well body.

[0021] In one embodiment, the first driving mechanism is externally covered with a flexible waterproof cover.

[0022] In one embodiment, the smart manhole cover further includes a circuit assembly, wherein the circuit assembly includes a control circuit and a battery assembly for supplying power to the control circuit and the electromagnetic assembly, wherein the control circuit is used to control power on or off of the electromagnetic assembly.

[0023] In one embodiment, the circuit assembly further includes a communication module, and the communication module is electrically connected to the control circuit.

[0024] In one embodiment, the circuit assembly further comprises a float disposed in the well, and the float is connected to the control circuit;

[0025] The control circuit is also used to control the electromagnetic component to power on when receiving a trigger signal from the float, so as to drive the cover plate to rise and open the wellhead.

[0026] In one embodiment, a plurality of tie rods are provided at the lower end of the well body, and the plurality of tie rods are used to fix the well body in the well and to adjust the lifting and lowering of the well body;

[0027] and / or,

[0028] The side wall of the well body tapers from top to bottom.

[0029] In one embodiment, a sand settling chamber is provided at the lower end of the well body.

[0030] In one embodiment, the intelligent manhole cover further comprises an overlapping portion for overlapping the ground, wherein the overlapping portion is formed by a cover plate located at the outermost circle among the plurality of cover plates protruding out of the manhole body, or the overlapping portion is formed by an outer flange protruding outward from one end of the manhole body at the manhole mouth;

[0031] The upper surface of the overlap portion is provided with a buffer surface for a smooth transition between the top surface of the cover plate and the ground, and the buffer surface is an inclined surface or an arc-shaped surface.

[0032] In one embodiment, the circuit assembly further includes:

[0033] A positioning module, the positioning module is connected to the control circuit;

[0034] The manhole cover is provided with a polygon, the tip of the polygon is used to face the communication tower at a predetermined position, and the positioning module is arranged in the polygon.

[0035] In one embodiment, each of the cover plates further comprises a support column, through which the cover plate is rotatably connected to the well body, and the support column is arranged offset from the center of the circle of the cover plate.

[0036] In one embodiment, each of the cover plate assemblies further comprises a second driving mechanism, wherein the second driving mechanism is mounted on the well body, and the second driving mechanism is drivingly connected to the support column for driving the support column to rotate so as to rotate and translate the cover plate.

[0037] In one embodiment, the plurality of cover plates are arranged side by side from left to right, and along the direction from left to right, the cover plate on the left of two adjacent cover plates is pressed onto the cover plate on the right.

[0038] In one embodiment, the cover plate and / or the well body are provided with an anti-sticking structure at a position corresponding to the joint between the cover plate and the well body, and the anti-sticking structure is an anti-sticking coating or a rubber layer.

[0039] In one embodiment, the circuit assembly further includes a flashing light connected to the power supply assembly and the control circuit, and the control circuit is used to control the flashing light to turn on when the manhole cover is opened to provide a prompt.

[0040] In one embodiment, the first magnetic member and the second magnetic member are magnetic rings respectively, the elastic component is a spring, and the electromagnetic component is an electromagnet.

[0041] In one embodiment, the electromagnetic component is also used to change the direction of the current when power is turned on, so as to control the second sleeve column and the first sleeve column to be attracted after the second sleeve column and the first sleeve column are aligned.

[0042] In one embodiment, there are two electromagnetic components, which are respectively arranged on the first sleeve column and the second sleeve column, one of which is used to generate a magnetic force that repels one of the first magnetic part and the second magnetic part when power is turned on, and the other is used to generate the same magnetic force as the other of the first magnetic part and the second magnetic part when power is turned on, so as to release the magnetic attraction state of the first magnetic part and the second magnetic part.

[0043] In one embodiment, the electromagnetic component on the first sleeve column is also used to change the direction of the current when power is turned on to generate a magnetic force that attracts the second magnetic component, and the electromagnetic component on the second sleeve column is also used to change the direction of the current when power is turned on to generate a magnetic force that attracts the first magnetic component. After the second sleeve column is aligned with the first sleeve column, the magnetic force generated by the electromagnetic component on the first sleeve column and the magnetic force generated by the electromagnetic component on the second sleeve column control the second sleeve column and the first sleeve column to attract each other.

[0044] The technical solution of the present invention can not only lock the manhole cover to prevent theft through the first driving mechanism, but also drive the manhole cover to rise and automatically open the manhole cover. It is very intelligent and does not need to be opened manually, which solves the unsafe problem of manually opening the manhole cover in harsh environments; and the required power is very low, which solves the problem of high power consumption due to the need to pull wires or use other drives. The electromagnetic component can be powered by weak electricity, which can generally be met by a battery pack, and is safer than strong electricity. In addition, when used in a drainage well, the elastic component supports the cover plate to rise, and the cover plate is above the wellhead to prevent the cover plate from being fully opened, forming a smaller water inlet, and avoiding the large water inlet when the wellhead is completely removed, which is easy to cause accidental losses or injuries to pedestrians, animals and vehicles on the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0046] Figure 1 A top view of an embodiment of a smart manhole cover of the present invention;

[0047] Figure 2 This is a schematic diagram of the structure of an embodiment of an intelligent manhole cover of the present invention when the manhole is closed;

[0048] Figure 3 is a schematic diagram of the structure of an embodiment of the first driving mechanism of the present invention, and the state shown corresponds to Figure 2 The status of the smart manhole cover shown;

[0049] Figure 4 This is a schematic diagram of the structure of an embodiment of an intelligent manhole cover of the present invention when the manhole is open;

[0050] Figure 5 for Figure 4 A schematic diagram of the state of the first driving mechanism when the intelligent manhole cover is in an open state;

[0051] Figure 6 is a structural schematic diagram of another embodiment of the first driving mechanism of the present invention, and the state shown corresponds to Figure 5 The status of the smart manhole cover shown;

[0052] Figure 7 A schematic diagram of the structure of another embodiment of the intelligent manhole cover of the present invention when the manhole is closed;

[0053] Figure 8 A schematic diagram of the structure of a manhole body of an embodiment of an intelligent manhole cover of the present invention;

[0054] Fig. 9 This is a schematic structural diagram of a cover plate of an embodiment of an intelligent manhole cover of the present invention;

[0055] Fig.10 Schematic diagram of circuit function modules of an embodiment of the intelligent manhole cover of the present invention.

[0056] Description of Figure Numbers:

[0057]

[0058]

[0059] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0062] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] The invention provides an intelligent manhole cover.

[0064] Reference Figures 1 to 10 The present invention provides an intelligent manhole cover, which includes a manhole body 100, a cover plate 200 and a first driving mechanism 300. One end of the manhole body 100 is a manhole opening; the cover plate 200 is covered on the manhole opening of the manhole body 100.

[0065] The first driving mechanism 300 includes a driving member 310, a first sleeve column 320 and a second sleeve column 330. The first sleeve column 320 and the second sleeve column 330 can move relative to each other in the vertical direction. The upper end of the first sleeve column 320 is connected to the cover plate 200, and the lower end of the second sleeve column 330 is connected to the well body. The driving member 310 is used to drive the first sleeve column 320 to rise in the vertical direction so that the cover plate 200 opens the wellhead.

[0066] The driving member 310 includes a first magnetic member 310a and a second magnetic member 310b that are arranged to be attracted to each other, an elastic component 310c that is compressed and connected between the first sleeve column 320 and the second sleeve column 330, and an electromagnetic component 310d that is used to generate magnetic force when power is turned on to release the magnetic attraction state of the first magnetic member 310a and the second magnetic member 310b;

[0067] When the magnetic attraction state between the first magnetic member 310a and the second magnetic member 310b is released, the elastic component 310c drives the second sleeve column 330 to rise in the vertical direction, so that the cover plate 200 opens the wellhead.

[0068] The first magnetic member 310a and the second magnetic member 310b can be magnets or magnets. In this embodiment, permanent magnets are used. The first magnetic member 310a and the second magnetic member 310b are arranged with opposite polarities, so that they are magnetically attracted to each other when aligned. The shapes of the first magnetic member 310a and the second magnetic member 310b are not limited. In order to facilitate the use with the first sleeve column 320 and the second sleeve column 330, they can be arranged in a ring shape, and of course other shapes are also possible.

[0069] The elastic component 310c may be a spring or a plurality of metal springs.

[0070] When the cover plate 200 is installed on the wellhead, the second sleeve column 330 and the first sleeve column 320 are aligned, and the cover plate 200 is pressed down. At this time, the first magnetic member 310a and the second magnetic member 310b are in a mutually attracted state, so that the second sleeve column 330 is locked, thereby locking the cover plate 200.

[0071] When the cover plate 200 needs to be opened, the electromagnetic component 310d is controlled to be energized / powered on. At this time, the electromagnetic component 310d generates a magnetic force with a polarity opposite to that of one of the first magnetic member 310a and the second magnetic member 310b. Through the repulsive effect of the same magnetic properties, the magnetic attraction state of the first magnetic member 310a and the second magnetic member 310b is released. Since the magnetic attraction of the first magnetic member 310a and the second magnetic member 310b is released, the tensile force of the elastic component 310c drives the second sleeve column 330 to rise to a certain height, thereby causing the cover plate 200 to rise and open the wellhead. Among them, the electromagnetic component 310d can be implemented by an electromagnet. By controlling the current direction and voltage of the coil of the electromagnet, the polarity and magnitude of the magnetic force generated by the electromagnetic component 310d can be controlled, thereby realizing the control of whether the first sleeve column 320 and the second sleeve column 330 are mutually attracted or separated. It should be noted that electromagnets have many advantages: the presence or absence of an electromagnet's magnetic field can be controlled by turning on and off the current; the strength of the magnetic field can be controlled by the strength of the current or the number of turns of the coil (or by controlling the size of the iron core); its magnetic poles can be controlled by changing the direction of the current, etc. That is, the strength of the magnetic field can be changed, the presence or absence of the magnetic field can be controlled, the direction of the magnetic poles can be changed, and the magnetic field can disappear due to the disappearance of the current.

[0072] It should be understood that, in the natural state, the elastic tensile force of the elastic component 310c is less than the magnetic attraction force of the first magnetic component 310a and the second magnetic component 310b, so that the first magnetic component 310a and the second magnetic component 310b can be attracted as long as they are docked together. In the power-on state, the magnetic force generated by the electromagnetic component 310d and the elastic tensile force of the elastic component 310c are superimposed to be greater than the magnetic attraction force of the first magnetic component 310a and the second magnetic component 310b. In this way, it is only necessary to control the magnitude of the magnetic force generated by the electromagnetic component 310d to make the first magnetic component 310a and the second magnetic component 310b in a drag-away attraction state. Among them, to ensure that the elastic tensile force of the elastic component 310c can better drive the cover plate 200 to rise, the magnetic force generated by the electromagnetic component 310d can be set to be greater than the magnetic attraction force of the first magnetic component 310a and the second magnetic component 310b.

[0073] It should be noted that when the cover plate 200 is controlled to rise and the wellhead is opened, the electromagnetic assembly 310d is immediately controlled to be powered off / off to stop consuming electric energy, so that only very little electric energy is required to achieve the lifting and lowering of the cover plate 200. Specifically, the electromagnetic assembly 310d may be controlled to be powered off / off after a preset time, such as 1 second, when the electromagnetic assembly 310d is powered on / on.

[0074] It is understandable that the embodiment of the present invention can not only lock the manhole cover to prevent theft through the first drive mechanism 300, but also drive the manhole cover to rise and automatically open the manhole cover, which is very intelligent and does not require manual opening, solving the unsafe problem of manually opening the manhole cover in harsh environments; and the required power is very low, solving the problem of high power consumption due to the need to pull wires or adopt other drives. The electromagnetic component 310d can be powered by weak electricity, which can generally be met by a battery pack, and is safer than strong electricity. In addition, when used in a drainage well, the elastic component 310c supports the cover plate 200 to rise, and the cover plate 200 is above the wellhead, preventing the cover plate 200 from being fully opened, forming a smaller water inlet, and avoiding the large water inlet when the wellhead is completely removed, which is easy to cause accidental losses or injuries to pedestrians, animals and vehicles on the road.

[0075] In one embodiment, see Figures 2 to 5 The first magnetic component 310a and the electromagnetic component 310d can be arranged on the first sleeve column 320, and the second magnetic component 310b is arranged on the second sleeve column 330.

[0076] In one embodiment, the electromagnetic component 310d is one and is disposed on the first sleeve column 320 or the second sleeve column 330, and is used to generate a magnetic force that repels one of the first magnetic component 310a and the second magnetic component 310d when power is turned on to release the magnetic attraction state of the first magnetic component 310a and the second magnetic component 310b.

[0077] That is, the electromagnetic component 310d can be used to generate a repulsive magnetic force in the first magnetic member 310a to release the magnetic attraction state between the first magnetic member 310a and the second magnetic member 310b. Alternatively, the electromagnetic component 310d can be used to generate a repulsive magnetic force in the second magnetic member 310b to release the magnetic attraction state between the first magnetic member 310a and the second magnetic member 310b.

[0078] In another embodiment, there are two electromagnetic components 310d, which are respectively arranged on the first sleeve column 320 and the second sleeve column 330, one of which is used to generate a magnetic force that repels one of the first magnetic member 310a and the second magnetic member 310d when power is turned on, and the other is used to generate the same magnetic force as the other of the first magnetic member 310a and the second magnetic member 310d when power is turned on, so as to release the magnetic attraction state of the first magnetic member 310a and the second magnetic member 310b. Among them, one electromagnetic component 310d generates a magnetic force with a polarity opposite to that of the magnetic member of the sleeve column where it is located, and the other generates the same magnetic force, so that the repulsive force is strengthened. That is to say, in this embodiment, the two electromagnetic components 310d are used to strengthen the repulsive magnetic force to increase the disconnection speed and force of the first magnetic member 310a and the second magnetic member 310d to avoid adhesion.

[0079] In the above embodiment, the first magnetic component 310a and the elastic component 310c are arranged at one end of the first sleeve column 320 close to the second sleeve column 330, and the second magnetic component 310b is arranged at one end of the second sleeve column 330 close to the first sleeve column 320. This scheme can facilitate the separation of the first sleeve column 320 and the second sleeve column 330, and the driving stroke can be shortened, thereby reducing the driving stroke of the elastic component 310c. It should be noted that in this scheme, a guide rod 340 can be added to guide the elastic component 310c to further prevent the electromagnetic component 310d from bending when the driving cover plate 200 rises. The guide rod can be inserted into the elastic component 310c, and the two end parts are correspondingly inserted into the first sleeve column 320 and the second sleeve column 330, or it can be as follows Figure 6 As shown, it is sleeved at the combination position of the first sleeve column 320, the second sleeve column 330 and the elastic component 310c. In addition, the guidance of the elastic component 310c can also be achieved by designing a part of the second sleeve column 330 to be inserted or sleeved on the first sleeve column 320, wherein the corresponding part of the first sleeve column 320 or the second sleeve column 330 can be set to a larger diameter to form a step for the first magnetic member 310a and the elastic component 310c to be installed. The first magnetic member 310a and the second magnetic member 310b can be set as a magnetic ring for the elastic component 310c to pass through.

[0080] Of course, in other embodiments, the second sleeve column 330 may be sleeved in the first sleeve column 320, and the first magnetic component 310a and the elastic component 310c may be arranged near the bottom of the first sleeve column 320, that is, the first sleeve column 320 is far from one end of the second sleeve column 330; the second magnetic component 310b is arranged at one end of the second sleeve column 330 near the first sleeve column 320. This solution does not require the addition of a guide, and the guide can be directly realized by the sleeved relationship between the second sleeve column 330 and the first sleeve column 320, so as to prevent the elastic component 310c from bending when the driving cover plate 200 rises.

[0081] In the above embodiment, further, when the second sleeve column 330 and the first sleeve column 320 need to be closed, the electromagnetic component 310d is also used to change the direction of the current when energized, so as to control the second sleeve column 330 to be attracted to the first sleeve column 320 after the second sleeve column 330 is aligned with the first sleeve column 320. That is, the electromagnetic component 310d on the first sleeve column 320 can be controlled to be energized to generate the same magnetic force as the first magnetic member 310a, so as to attract the second sleeve column 330.

[0082] Of course, in order to increase the magnetic force, the electromagnetic assembly 310d on the second sleeve column 330 can also be controlled to generate a magnetic force that attracts the first magnetic member 310a, so that the second sleeve column 330 and the first sleeve column 320 are quickly and effectively attracted. Specifically, the electromagnetic assembly 310d on the first sleeve column 320 is also used to change the direction of the current when powered on to generate a magnetic force that attracts the second magnetic member 310b, and the electromagnetic assembly 310d on the second sleeve column 330 is also used to change the direction of the current when powered on to generate a magnetic force that attracts the first magnetic member 310a. After the second sleeve column 330 is aligned with the first sleeve column 320, the magnetic force generated by the electromagnetic assembly 310d on the first sleeve column 320 and the magnetic force generated by the electromagnetic assembly 310d on the second sleeve column 330 control the second sleeve column 330 and the first sleeve column 320 to attract each other.

[0083] It should be noted that in actual applications, the second sleeve column 330 and the first sleeve column 320 will be installed on corresponding objects. As long as the relative distance between them is within the magnetic attraction range after alignment, as long as the electromagnetic component 310d is energized to generate suction, the second sleeve column 330 will be attracted to the first sleeve column 320 to achieve connection. Of course, in order to facilitate the magnetic connection, a sleeve can be provided on the second sleeve column 330 and the first sleeve column 320, so that when the second sleeve column 330 and the first sleeve column 320 are closed or opened, the second sleeve column 330 and the elastic component are guided.

[0084] It should be understood that the electromagnetic component is an electromagnet, and the polarity of the magnet and the magnitude of the suction force can be changed by controlling the direction and magnitude of the current in the electromagnet coil.

[0085] In one embodiment, if Figure 2 and Figure 4 , a plurality of cover plates 200 are provided, each of which is driven by at least one of the first driving mechanisms 300, and a plurality of cover plates 200 are arranged in a ring from outside to inside; each of the cover plates 200 rises vertically along the well body 100 under the drive of its corresponding first driving mechanism 300 to control the size of the water inlet of the wellhead, and a plurality of the cover plates 200 at least have a safe drainage state. In the safe drainage state, each of the cover plates 200 rises to a corresponding predetermined height position, and forms a plurality of water inlets that are connected to the inside of the well body 100 and have different heights.

[0086] Driven by the first driving mechanism 300, the multiple cover plates 200 rise to different heights, and a water inlet is formed between two adjacent cover plates 200 or between the cover plate 200 and the upper end surface of the well body 100, so that the original well mouth becomes multiple smaller water inlets, avoiding the danger of large water inlets when the entire well mouth is opened, which is easy to cause accidental losses or injuries to pedestrians, animals and vehicles passing on the road. It can be understood that the cover plate 200 of the multiple cover plates 200 can be a single cover plate 200 that rises to form a water inlet or multiple cover plates 200 that rise to form multiple water inlets, which can be selected according to the amount of water, for example, can be actively controlled by the background terminal, or automatically controlled by detecting humidity (reflecting rainfall) through a humidity sensor, and when the humidity value is in the corresponding preset humidity value interval, the corresponding number of cover plates 200 is controlled to open, so as to match the number of water inlets corresponding to different rainfall amounts, so that the size of the water inlet can be controlled on demand, which can better improve safety.

[0087] It should be noted that each cover plate 200 may be provided with a plurality of first driving mechanisms 300 to achieve balanced support and improve driving force.

[0088] In one embodiment, see Figure 4 In the safe drainage state, when each of the cover plates 200 rises to a corresponding predetermined position, there is a height difference between them, so as to form a plurality of water inlets that are connected to the inside of the well body 100 and have different heights.

[0089] In one embodiment, see Figure 4, multiple cover plates 200 are arranged in a stepped state from the inside to the outside. In detail, multiple cover plates 200 may be arranged in a descending stepped state from the inside to the outside. Specifically, three cover plates 200 are provided, and correspondingly, three cover plates 200 are also provided. The three cover plates 200 are the first cover plate 211, the second cover plate 212 and the third cover plate 213 from the inside to the outside. The first cover plate 211 may rise to the highest height, the second cover plate 212 may rise to a height lower than the first cover plate 211, and the third cover plate 213 may rise to a height lower than the second cover plate 212, thereby forming multiple water inlets that are connected to the inside of the well body 100 and have different heights.

[0090] Furthermore, the heights of the multiple water inlets are the same, that is, the height difference between two adjacent water inlets is equal. Alternatively, the multiple cover plates 200 may be arranged in an ascending step state from the inside to the outside.

[0091] In one embodiment, in order to prevent the smart manhole cover from being washed away by water or stolen after being unlocked, a limiting portion 320a is provided at the upper end of the first sleeve column 320 to limit the second sleeve column 330 from being separated from the first sleeve column 320 in the vertical direction. In other words, after the electromagnetic component 310d releases the attraction state of the first magnetic part 310a and the second magnetic part 310b, it is still restricted from being separated by the limiting portion 320a. Therefore, the cover plate 200 will not be easily washed away by water or stolen. This solution is particularly convenient to implement in the embodiment where the second sleeve column 330 is inserted into the first sleeve column 320. It only needs to be set at the upper end of the first sleeve column 320. Of course, in other embodiments, a chain can also be set to connect the cover plate 200 and the well body 100 to prevent it from being washed away by water or stolen.

[0092] In one embodiment, the well body 100 includes a well neck 10a and a well seat 10b arranged from top to bottom, and the cover plate 200 is covered on the upper end of the well neck 10a, and the well neck 10a is detachably connected to the well seat 10b. Specifically, a buckle seat (not shown) can be provided on the well seat 10b, and a buckle (not shown) can be provided on the well neck 10a, which is buckled and connected to the buckle seat through the buckle. It can also be locked by a locking member, and the locking member can be operated to unlock after the smart well cover is opened. When the smart well cover adopts a non-detachable embodiment, it is very convenient to adopt a detachable setting of the well neck 10a to facilitate operation or construction in the well.

[0093] In one embodiment, a flexible waterproof cover (not shown) is provided on the outside of the first driving mechanism 300 to prevent the first driving mechanism 300 from being damaged by water erosion.

[0094] In one embodiment, in order to facilitate the fixing of the first sleeve columns 320 of the multiple cover plates 200, a support platform 130 is provided on the well body 100, and each of the first sleeve columns 320 is fixed on the support platform 130. Since the multiple cover plates 200 are located at different positions, it is difficult to install the multiple first sleeve columns 320. This embodiment solves this problem well. In addition, the support platform 130 can be detachably connected to the well body 100 to facilitate the operation.

[0095] In one embodiment, see Fig.10 The smart manhole cover also includes a circuit component 400, which includes a control circuit 410 and a battery component 420 for supplying power to the control circuit 410 and the electromagnetic component 310d respectively. The control circuit 410 is used to control the electromagnetic component 310d to be powered on or off.

[0096] In this embodiment, the control circuit 410 may be a single chip microcomputer circuit, a microprocessor, or a programmable logic device.

[0097] In this embodiment, the battery assembly 420 can be powered by a battery or a solar cell. In an environment such as a well body that is easily exposed to water and road surfaces, a weak current method is used for power supply, which is safer. Among them, solar cell power supply can improve battery life, and there is basically no need to remove the battery for replacement or charging, which is very convenient.

[0098] The battery can be configured with a charge and discharge circuit for charging and discharging, and can be further configured with a battery management circuit for battery management to improve battery life and efficiency.

[0099] In one embodiment, see Fig.10 The circuit assembly 400 further includes a communication module 430, which is electrically connected to the control circuit 410. The communication module 430 is used to implement remote communication control, such as receiving a control signal from a remote control center and outputting it to the control circuit 410, thereby implementing unlocking control or opening of the cover 200. The communication module 430 may be a mobile network module or a wireless Wifi module.

[0100] In one embodiment, see Fig.10 , the circuit assembly 400 further includes:

[0101] The positioning module 440 is connected to the control circuit 410 .

[0102] The positioning module 440 transmits wireless signals or transmits wireless signals to a certain position or area in a directional manner to be used for positioning coordinates. In addition, the positioning signals of multiple smart manhole covers can also be gathered to a certain position or area to create a virtual positioning area for navigation.

[0103] The positioning module 440 may be installed on the cover plate 200 , preferably, installed on the outermost cover plate 200 . A groove may be provided on the cover plate 200 to accommodate the positioning module 440 .

[0104] Furthermore, a polygon (not shown) is provided on the cover plate 200, the tip of which is used to face the communication tower at a predetermined position, and the positioning module 440 is provided in the polygon. In this embodiment, the shape of the polygon can improve the transmission quality of the signal.

[0105] In one embodiment, see Fig.10 , the circuit assembly 400 further includes:

[0106] The alarm module 450 and the angular displacement sensor 460 are arranged on the cover plate 200 . The output end of the angular displacement sensor 460 is connected to the control circuit 410 , and the input end of the alarm module 450 is connected to the control circuit 410 .

[0107] When the cover plate 200 encounters abnormal operation such as disassembly, the angular displacement sensor 460 detects the behavior and determines it as theft. The control circuit 410 controls the alarm module 450 to alarm and uploads it to the remote control center through the communication module 430. The alarm module 450 can be a sound output device such as a speaker.

[0108] In one embodiment, see Fig.10 The circuit assembly 400 further includes a wireless emergency unlocking communication module 470, which is connected to the control circuit 410. When the communication module 430 fails to communicate, if an emergency occurs, the control center can send instructions to the control circuit 410 through the wireless emergency unlocking communication module 470, and then control the electromagnetic assembly 310d to act. The electromagnetic assembly 310d drives the unlocking action according to the instruction. After unlocking, the elastic assembly 310c drives the cover 200 to open. The wireless emergency unlocking communication module 470 can be a mobile network module or a wireless Wifi module.

[0109] In one embodiment, the circuit component 400 also includes a flashing light 480, which is connected to the power supply component and the control circuit 310. The control circuit 310 is used to control the flashing light 480 to turn on when the control cover 200 is opened, so as to provide a prompt to avoid cars and pedestrians from not noticing that the manhole cover is open and causing safety problems.

[0110] In one embodiment, see Fig.10The circuit assembly 400 further includes a float 490 disposed in the well, and the float 490 is connected to the control circuit 410. When the sewer is filled with water and the liquid level rises to a certain height, the float 490 rises with the liquid level and triggers an output signal to the control circuit 410. The control circuit 410 controls the electromagnetic assembly 310d to power on according to the signal, so as to drive the cover plate 200 to rise and open the wellhead.

[0111] It should be noted that Fig.10 Only the connection relationship between the control circuit, the electromagnetic component, the flashing light and the battery component is shown. It should be understood that the circuit modules in the above-mentioned embodiments, such as the communication module 430, the positioning module 440, the alarm module 450, the angular displacement sensor 460, the wireless emergency unlocking communication module 470, etc. are all powered by the battery component. Therefore, their connection relationship is clear and will not be shown one by one in the figure. It can be understood that the battery component is weak current and very safe.

[0112] In one embodiment, a vertical arm or a sleeve is provided at one end of the cover plate 200 facing the well, and a storage space is formed in the vertical arm or the sleeve. The battery assembly 420 can be stored in the storage space to protect the battery assembly 420.

[0113] In one embodiment, see Figures 2 to 6 A plurality of tie rods 140 are provided at the lower end of the well body 100 , and the tie rods 140 are used to fix the well body in the well, and the tie rods 140 are used to adjust the lifting and lowering of the well body 100 .

[0114] It is understandable that the pull rod 140 adjusts the lifting and lowering of the well body 100, and can adjust the height between the cover plate 200 and the ground.

[0115] This embodiment can further adopt a split well body, that is, the well body 100 includes a well neck 10a and a well seat 10b arranged from top to bottom. Among them, the pull rod is a telescopic rod, or can be locked on the well seat 10b by bolts. The pull rod 140 can be made of anti-corrosion material, which is not easily corroded when installed on the well wall for a long time, thereby ensuring the service life of the smart manhole cover. Furthermore, a positioning groove (not shown) can also be provided on the well seat 10b to position the pull rod to avoid shaking or instability during the support process of the pull rod.

[0116] In one embodiment, see Figures 2 to 6 The side walls of the well body 100 taper from top to bottom, thereby forming a large well frame, which is convenient for fixing the well body and facilitating drainage.

[0117] In one embodiment, see Figures 2 to 6A sand settling chamber 120 is provided at the lower end of the well body 100, and a leakage hole connected to the sewer is provided on the side wall or the bottom of the sand settling chamber 120. When the well mouth is opened, water flows into the sand settling chamber 120 and then flows to the sewer from the leakage hole. Sand and other debris mixed in the water are deposited in the sand settling chamber 120 to prevent the debris from clogging the sewer.

[0118] After the intelligent manhole cover is disassembled and assembled many times during road renovation and maintenance, the road surface is uneven, the noise from passing cars disturbs the residents and poses a safety hazard. Figures 1 to 6 , the smart manhole cover also includes an overlapping portion (not shown) for overlapping the ground, the overlapping portion is formed by the cover plate 200 located in the outermost circle among the multiple cover plates 200 protruding from the outside of the well body 100, or the overlapping portion is formed by the outer flange 110 protruding outward from one end of the well body 100 at the wellhead. Overlapping the part of the outermost cover plate 200 protruding from the well body 100 or the outer flange 110 on the ground can protect the original road surface and reduce road surface damage, extend the service life, do not need frequent maintenance and repair, and avoid the problem of uneven road surface caused by the cover plate 200 after multiple disassembly and assembly. In addition, the overlapping portion is overlapped on the ground, which is more stable and avoids the vibration and sound of the smart manhole cover when a motor vehicle passes by. In addition, it can also avoid the safety problem that the manhole cover in the prior art easily causes harm to passers-by and vehicles when it protrudes a certain height from the road surface.

[0119] Furthermore, in order to facilitate the motor vehicle to pass through the intelligent manhole cover without causing sudden large resistance, the upper surface of the overlap portion is provided with a buffer surface for the smooth transition between the top surface of the cover plate 200 and the ground, and the buffer surface is an inclined surface or an arc surface. This embodiment can further provide a groove on the buffer surface of the cover plate 200 to accommodate the positioning module 440.

[0120] In one embodiment, each of the cover plates 200 further includes a support column (not shown), and the cover plate 200 is rotatably connected to the well body 100 via the support column, and the support column is arranged away from the center of the cover plate 200.

[0121] When the cover plate 200 is unlocked, since the cover plate 200 is eccentrically arranged by the support column, the wellhead can be further opened by rotating it to a certain angle, such as 180-360 degrees, without having to be taken down.

[0122] Furthermore, in order to reduce the difficulty of operation, each of the cover plates 200 further includes a second driving mechanism (not shown), which is mounted on the well body and is drivingly connected to the support column to drive the support column to rotate so as to rotate and translate the cover plate 200. The second driving mechanism can be a motor, and the second driving mechanism can be driven to reduce the operation. The second driving mechanism can be a motor. The second driving mechanism is also powered by the circuit assembly.

[0123] In one embodiment, a plurality of the cover plates 200 are arranged side by side from left to right, and from left to right, the cover plate 200 on the left of two adjacent cover plates 200 is pressed against the cover plate 200 on the right. Figure 7 The cover plates 200 shown include a, b, c, d, and e. The driving methods are similar to those of the annular cover plates 200, which will not be described in detail here. Here, the main focus is on the types and locking methods.

[0124] The intelligent manhole cover of this structure only needs to lock one of the cover plates 200 near the side, that is, the electromagnetic lock is set on the leftmost cover plate 200 ( Fig. 9 As shown in a) or on the first driving mechanism 300, it is used to lock it, which can save costs and is convenient when it needs to be repaired or disassembled in the well.

[0125] In one embodiment, the cover plate 200 and / or the well body 100 are provided with an anti-sticking structure corresponding to the joint position between the cover plate 200 and the well body 100. The anti-sticking structure is an anti-sticking coating or a rubber layer. The anti-sticking structure can prevent the joint position between the cover plate 200 and the well body 100 from rusting and sticking.

[0126] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A smart manhole cover, characterized in that: include: A well body, one end of which is a wellhead; A cover plate, arranged on the wellhead of the well body; A first driving mechanism comprises a driving member, a first sleeve column and a second sleeve column, wherein the first sleeve column and the second sleeve column are relatively movable in a vertical direction, an upper end of the second sleeve column is connected to the cover plate, and a lower end of the first sleeve column is connected to the well body; The driving member includes a first magnetic member and a second magnetic member arranged to be attracted relative to each other, an elastic component compressed and connected between the first sleeve column and the second sleeve column, and an electromagnetic component used to generate a magnetic force when power is turned on to release the magnetic attraction state of the first magnetic member and the second magnetic member; When the magnetic attraction state between the first magnetic member and the second magnetic member is released, the elastic component drives the second sleeve column to rise in the vertical direction so that the cover plate opens the wellhead; The first magnetic member and the elastic component are arranged on the first sleeve column, and the second magnetic member is arranged on the second sleeve column; There is one electromagnetic component, which is arranged on the first sleeve column or the second sleeve column, and is used to generate a magnetic force that repels one of the first magnetic component and the second magnetic component when power is turned on to release the magnetic attraction state of the first magnetic component and the second magnetic component.

2. The intelligent manhole cover according to claim 1, characterized in that: The first magnetic member and the elastic component are arranged at one end of the first sleeve column close to the second sleeve column, and the second magnetic member is arranged at one end of the second sleeve column close to the first sleeve column; or, The second sleeve column is sleeved in the first sleeve column, and the first magnetic component and the elastic component are arranged near one end of the first sleeve column away from the second sleeve column; the second magnetic component is arranged at one end of the second sleeve column close to the first sleeve column.

3. The intelligent manhole cover according to claim 1, characterized in that: There are a plurality of cover plates, each of which is driven by at least one of the first driving mechanisms, and the plurality of cover plates are arranged in a ring from outside to inside; Each of the cover plates rises vertically along the well body under the drive of its corresponding first driving mechanism to control the size of the water inlet of the wellhead. Multiple cover plates have at least a safe drainage state. In the safe drainage state, each of the cover plates rises to a corresponding predetermined height and forms multiple water inlets of different heights that are connected to the interior of the well body.

4. The intelligent manhole cover according to claim 3, characterized in that: In a safe drainage state, when each of the cover plates rises to a corresponding predetermined position, there is a height difference between them, so as to form a plurality of water inlets at different heights that are connected to the interior of the well body.

5. The intelligent manhole cover according to claim 4, characterized in that: The plurality of cover plates are raised to a predetermined height and arranged in a stepped state from inside to outside.

6. The intelligent manhole cover according to claim 1, characterized in that: A limiting portion is provided at the upper end of the first sleeve column, for limiting the separation of the first sleeve column and the second sleeve column in the vertical direction; or, A support platform is provided on the well body, each of the first sleeve columns is fixed on the support platform, and the support platform is detachably connected to the well body.

7. The intelligent manhole cover according to claim 1, characterized in that: The first driving mechanism is externally covered with a flexible waterproof cover.

8. The intelligent manhole cover according to claim 1, characterized in that: The intelligent manhole cover also includes a circuit component, which includes a control circuit and a battery component for supplying power to the control circuit and the electromagnetic component, and the control circuit is used to control the electromagnetic component to be powered on or off.

9. The intelligent manhole cover according to claim 8, characterized in that: The circuit assembly further includes a communication module, and the communication module is electrically connected to the control circuit.

10. The intelligent manhole cover according to claim 8, characterized in that: The circuit assembly also includes a float ball disposed in the well, and the float ball is connected to the control circuit; The control circuit is also used to control the electromagnetic component to power on when receiving a trigger signal from the float, so as to drive the cover plate to rise and open the wellhead.

11. The intelligent manhole cover according to claim 1, characterized in that: A plurality of pull rods are provided at the lower end of the well body, and the plurality of pull rods are used to fix the well body in the well and to adjust the lifting and lowering of the well body; and / or, The side wall of the well body tapers from top to bottom.

12. The intelligent manhole cover according to claim 1, characterized in that: A sand settling chamber is arranged at the lower end of the well body.

13. The intelligent manhole cover according to claim 1, characterized in that: The smart manhole cover also includes a lap joint for lap jointing the ground, wherein the lap joint is formed by a cover plate located at the outermost circle among the plurality of cover plates protruding out of the manhole body, or the lap joint is formed by an outer flange protruding outward from one end of the manhole body at the manhole mouth; The upper surface of the overlap portion is provided with a buffer surface for a smooth transition between the top surface of the cover plate and the ground, and the buffer surface is an inclined surface or an arc-shaped surface.

14. The intelligent manhole cover according to claim 8, characterized in that: The circuit assembly further comprises: A positioning module, the positioning module is connected to the control circuit; The manhole cover is provided with a polygon, the tip of the polygon is used to face the communication tower at a predetermined position, and the positioning module is arranged in the polygon.

15. The intelligent manhole cover according to claim 1, characterized in that: The plurality of cover plates are arranged side by side from left to right, and the cover plate on the left of two adjacent cover plates is pressed onto the cover plate on the right of the two adjacent cover plates from left to right.

16. The intelligent manhole cover according to claim 1, characterized in that: The cover plate and / or the well body are provided with an anti-sticking structure at a joint position between the cover plate and the well body, and the anti-sticking structure is an anti-sticking coating or a rubber layer.

17. The intelligent manhole cover according to claim 8, characterized in that: The circuit assembly also includes a flashing light connected to the power supply assembly and the control circuit. The control circuit is used to control the flashing light to turn on when the manhole cover is opened to provide a prompt.

18. The intelligent manhole cover according to claim 1, characterized in that: The first magnetic component and the second magnetic component are magnetic rings respectively, the elastic component is a spring, and the electromagnetic component is an electromagnet.

19. The intelligent manhole cover according to claim 1, characterized in that: The electromagnetic component is also used to change the direction of the current when power is turned on, so as to control the second sleeve column and the first sleeve column to be attracted after the second sleeve column and the first sleeve column are aligned.

20. The intelligent manhole cover according to claim 4, characterized in that: There are two electromagnetic components, which are respectively arranged on the first sleeve column and the second sleeve column. One of them is used to generate a magnetic force that repels one of the first magnetic part and the second magnetic part when power is turned on, and the other is used to generate the same magnetic force as the other of the first magnetic part and the second magnetic part when power is turned on, so as to release the magnetic attraction state of the first magnetic part and the second magnetic part.

21. The intelligent manhole cover according to claim 20, characterized in that: The electromagnetic component on the first sleeve column is also used to change the direction of the current when power is turned on to generate a magnetic force that attracts the second magnetic component, and the electromagnetic component on the second sleeve column is also used to change the direction of the current when power is turned on to generate a magnetic force that attracts the first magnetic component. After the second sleeve column is aligned with the first sleeve column, the magnetic force generated by the electromagnetic component on the first sleeve column and the magnetic force generated by the electromagnetic component on the second sleeve column control the second sleeve column and the first sleeve column to attract each other.

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