Well lid capable of adjusting water discharge

Abstract

The invention relates to the technical field of well lids, in particular to a well lid capable of adjusting the drainage amount. The driving part comprises an electric gear I arranged in the cavity, and an inner gear ring and an outer gear ring which rotate concentrically and respectively correspond to the inner and outer ring water passing grooves; and the adjusting part comprises rotating drums rotationally arranged in the water passing grooves, circulating holes used for circulating water flow are formed in the rotating drums, all-gears are arranged on the rotating drums, and the all-gears of the inner ring and the outer ring are correspondingly meshed with the inner gear ring or the outer gear ring. An inner gear ring is driven to rotate through a first electric gear, a first push plate is made to make contact with a second push plate, then an outer gear ring is driven to rotate, rotation of the two sets of gear rings can act on all gears at the corresponding positions, rotation of a rotary drum is achieved, the direction of a circulation hole is adjusted, and the water discharge amount of all ring positions is flexibly adjusted according to actual needs; and under the condition that it is ensured that the well lid does not need to be opened, the use flexibility, the treatment efficiency and the safety of the device are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and particularly to a manhole cover with adjustable drainage volume. Background Art

[0002] As an important part of the urban underground drainage system, drainage manhole covers are crucial for ensuring the safety of pedestrians and vehicles, ensuring the smooth flow of water into underground pipes, and protecting underground facilities from damage. They act as a safety barrier and also provide a convenient passage for maintenance personnel to conduct inspections, cleaning, or repair work. They are an indispensable part of the urban management and maintenance system.

[0003] During urban drainage, the role of manhole covers is particularly crucial. Currently, there are two main drainage methods in common manhole cover designs: one is to set fixed drainage holes on the manhole cover so that the manhole cover can also achieve the drainage function in the closed state. However, due to the fixed position of the drainage holes, the drainage speed is limited, especially when encountering heavy rainstorms, it is difficult to effectively handle the drainage of a large amount of water; the other method is to directly open the manhole cover to increase the drainage efficiency by expanding the opening area. Although this method greatly improves the drainage capacity, the open manhole cover brings inconvenience to road traffic and may even cause safety accidents.

[0004] In summary, the existing manhole cover drainage solutions have obvious limitations in terms of efficiency and safety. Therefore, it is particularly necessary to develop a manhole cover with adjustable drainage volume, which will help improve the overall efficiency of the urban drainage system and ensure public safety at the same time. Summary of the Invention

[0005] In order to overcome the above-mentioned drawbacks existing in the prior art, the present invention provides a manhole cover with adjustable drainage volume, including: A manhole ring, on which a plurality of hydrophobic channels are circumferentially spaced along the circumference; A manhole cover with two circles of water channels, which is embedded at the wellhead of the manhole ring. A gap for water flow to flow into the hydrophobic channel is reserved between the manhole cover and the inner wall of the manhole ring, and a cavity is provided inside the manhole cover; A driving member, including an electric gear one arranged in the cavity, and an inner tooth ring and an outer tooth ring that rotate concentrically and respectively correspond to the inner and outer circle water channels. The inner tooth ring meshes with the electric gear one. Symmetrical guiding grooves are provided on the inner tooth ring, and guiding grooves shorter than the guiding grooves are correspondingly provided on the outer tooth ring. Positioning shafts that are respectively slidably embedded in the guiding grooves and the guiding grooves are also provided in the cavity. Push plates one are symmetrically arranged on the inner tooth ring, and two groups of push plates two that are in contact and cooperate with the adjacent push plates one are correspondingly arranged on the outer tooth ring. The push plates one are located between two push plates two in the same group; The adjusting member includes a rotating cylinder disposed in each water channel. The rotating cylinder is provided with a flow hole for water to flow through, and a full gear is provided on the rotating cylinder. The full gears of the inner and outer circles are correspondingly engaged with the inner gear ring or the outer gear ring.

[0006] Furthermore, an electric gear two is disposed in the cavity, and a gear ring rotatably connected and engaged with the electric gear two is provided. A contact plate corresponding to the layout and quantity of the inner and outer rotating cylinders is provided on the gear ring. A sliding rod in contact and cooperation with the contact plate is slidably disposed in the rotating cylinder. Two connecting seats are disposed in the rotating cylinder. One connecting seat is connected to the inner wall of the rotating cylinder, and the other connecting seat is connected to the end of the sliding rod. A spring piece for dredging the flow hole is hinged between the same-side ends of the connecting seats.

[0007] Furthermore, an opening is provided in the middle of the manhole cover. Connecting members are symmetrically clamped on the side wall of the opening. An installation rod is disposed between the connecting members. The bottom end of the installation rod is provided with hinge seats along the circumference. Telescopic rods with telescopic ends hinged thereto are hinged on the hinge seats. The telescopic ends of the telescopic rods protrude from the corresponding hinge seats, and an umbrella-shaped filter screen is disposed between the outer cylinders of the telescopic rods.

[0008] Furthermore, the connecting member includes two connecting frames. One end of each of the two connecting frames on both sides is connected to the top end of the installation rod. A clamping rod that is in clamping cooperation with the inner wall of the opening of the manhole cover is slidably penetrated in each connecting frame. An elastic member two is disposed between the clamping rod and the inner wall of the corresponding connecting frame.

[0009] Furthermore, a push rod that penetrates and is slidably disposed in the installation rod and whose bottom end is in contact and cooperation with the protruding telescopic end of the telescopic rod is provided. Moving shafts are disposed on both sides of the upper end of the push rod. Right-angle sliding grooves are symmetrically provided on the installation rod. The moving shafts are slidably embedded in the same-side right-angle sliding grooves.

[0010] Furthermore, at least two rotating seats are rotatably spaced along the circumference at the top of the manhole ring. A protruding shaft is provided on each of the two sides of the upper end of the rotating seat. A plurality of groups of arc-shaped through grooves adapted to the layout of the rotating seats are provided on the manhole cover. The two arc-shaped through grooves in the same group are oppositely disposed, and the protruding shaft is in sliding and abutting cooperation with the adjacent arc-shaped through groove.

[0011] Furthermore, a metal sheet is provided on the rotating seat, and a magnet magnetically coupled with the adjacent metal sheet is provided in the manhole ring for fixing the position of the rotating seat.

[0012] Furthermore, assembly frames with a symmetrical layout are provided on the side wall of the opening of the manhole cover. An exploration cover is inserted between the two assembly frames on both sides. A clamping block that is in clamping cooperation with the exploration cover is slidably embedded in each assembly frame. An elastic member one is disposed between the clamping block and the inner wall of the corresponding assembly frame.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention drives the inner gear ring to rotate through the electric gear I, promotes the contact between the first push plate and the second push plate, and then drives the outer gear ring to rotate. The rotation of the two groups of gear rings will act on the full gears at the corresponding positions respectively, realizing the rotation of the rotating cylinder, thereby adjusting the direction of the flow holes, so as to flexibly adjust the drainage volume of each circle position according to actual needs to adapt to different rainfall amounts, ensuring that the flexibility, processing efficiency and safety of the device are effectively improved without opening the manhole cover.

[0014] 2. The present invention uses the electric gear II to drive the gear ring to rotate. The contact plate on the gear ring moves accordingly and pushes the sliding rod, causing the spring piece to perform a reciprocating motion, achieving the effect of dredging the impurities inside the flow holes, ensuring the continuous and stable operation of the drainage treatment, and avoiding affecting the drainage efficiency due to impurity blockage.

[0015] 3. The present invention adopts the contact and cooperation mode of the push rod and the telescopic rod to control the expansion or folding of the umbrella-shaped filter screen. In this way, the impurities concentrated in the umbrella-shaped filter screen can be effectively cleaned, ensuring unobstructed water flow, and at the same time facilitating maintenance and cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0017] Figure 2 It is a three-dimensional structure cross-sectional view of components such as the manhole ring, manhole cover and rotating seat of the present invention.

[0018] Figure 3 It is a three-dimensional structure cross-sectional view of components such as the protruding shaft, metal sheet and magnet of the present invention.

[0019] Figure 4 It is a three-dimensional structure schematic diagram of the manhole cover and exploration cover of the present invention.

[0020] Figure 5 For the present invention Figure 4 The enlarged structure schematic diagram of part A in

[0021] Figure 6 It is a three-dimensional structure cross-sectional view of components such as the electric gear I, inner gear ring and outer gear ring of the present invention.

[0022] Figure 7 It is a three-dimensional structure schematic diagram of components such as the second push plate, rotating cylinder and full gear of the present invention.

[0023] Figure 8 It is a three-dimensional structure schematic diagram of components such as the gear ring, contact plate and sliding rod of the present invention.

[0024] Figure 9 It is a three-dimensional structure cross-sectional view of components such as the sliding rod, connecting seat and spring piece of the present invention.

[0025] Figure 10 This is a three-dimensional structural sectional view of components such as the connection frame, clamping rod, and elastic member II of the present invention.

[0026] Figure 11 This is a three-dimensional structural sectional view of components such as the hinge seat, telescopic rod, and umbrella-shaped filter screen of the present invention.

[0027] In the above figures: 1: manhole rim, 11: hydrophobic channel, 2: manhole cover, 20: water drainage groove, 3: rotating seat, 30: arc-shaped through groove, 31: protruding shaft, 32: metal sheet, 33: magnet, 4: exploration cover, 41: assembly frame, 42: clamping block, 43: elastic member I, 5: electric gear I, 51: internal gear ring, 511: guiding groove, 52: positioning shaft, 53: push plate I, 54: external gear ring, 541: guiding groove, 55: push plate II, 56: rotating cylinder, 561: circulation hole, 57: full gear, 6: electric gear II, 61: gear ring, 62: contact plate, 63: sliding rod, 64: connecting seat, 65: spring piece, 7: connection frame, 71: clamping rod, 72: elastic member II, 73: mounting rod, 731: right-angle sliding groove, 74: pushing rod, 741: moving shaft, 75: hinge seat, 76: telescopic rod, 77: umbrella-shaped filter screen. Detailed implementation manners

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0029] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Embodiment 1: An adjustable drainage manhole cover, as Figure 1 , Figure 2 , Figure 6 and Figure 7 shown, includes: A manhole rim 1, on which a plurality of hydrophobic channels 11 are circumferentially spaced apart. The hydrophobic channels 11 extend bent towards the inner wall of the manhole rim 1, so that a part of the water accumulated above can be quickly discharged downward through the hydrophobic channels 11; The manhole cover 2 provided with two circles of water through-channels 20 is embedded at the wellhead of the well ring 1. Each circle of water through-channels 20 contains several ones. At the same time, a gap for the water flow to flow towards the hydrophobic channel 11 is reserved between the manhole cover 2 and the inner wall of the well ring 1 to ensure that the water flow can smoothly flow towards the hydrophobic channel 11, and an annular cavity is arranged inside the manhole cover 2; The driving member includes an electric gear one 5 arranged on the lower side wall of the cavity, and an inner gear ring 51 and an outer gear ring 54 that rotate concentrically and respectively correspond to the inner and outer circle water through-channels 20. The inner gear ring 51 meshes with the electric gear one 5. Driven by the electric gear one 5, the inner gear ring 51 can rotate and operate. At the same time, symmetrically arranged guide grooves 511 are formed on the inner gear ring 51. The number of the guide grooves 511 is two. Corresponding guide grooves 541 shorter than the guide grooves 511 are formed on the outer gear ring 54. Positioning shafts 52 that are respectively slidably embedded in the guide grooves 511 and the guide grooves 541 are also arranged on the lower side wall of the cavity. The positioning shafts 52 are adapted to the layout and number of the guide grooves 511 and the guide grooves 541. Through the arrangement of the positioning shafts 52, when the inner gear ring 51 and the outer gear ring 54 rotate, the guide grooves 511 and the guide grooves 541 on them will respectively fit and slide along the corresponding positioning shafts 52 synchronously. The positioning shafts 52 have a certain magnetism to play a stable guiding role for the inner gear ring 51 and the outer gear ring 54 during the rotation process. Due to the space limitation of the groove positions, when moving to the end, the positioning shafts 52 will abut against the ends of the corresponding groove positions, thereby controlling the moving range of each gear ring, ensuring the operation stability and safety, and realizing the controllability of the overall operation stroke. Push plates one 53 in a convex state are symmetrically arranged on the outer wall of the inner gear ring 51. Two groups of push plates two 55 that are in contact and cooperate with the adjacent push plates one 53 are correspondingly arranged on the outer gear ring 54. The number of each group of push plates two 55 is two, and the push plates one 53 are located between the two push plates two 55 in the same group; Specifically, based on Figure 7 As shown, at this time, the upper side ends of the guide grooves 511 and the guide grooves 541 are aligned, and the positioning shafts 52 at this position are both located at this end position, which makes the initial moving starting points of the two the same. At the same time, the distance between the two push plates two 55 is adapted to the stroke distance of the guide grooves 511, and the position of the push plate one 53 on this side fits with the lower push plate two 55. The push plate one 53 and the push plate two 55 on this side occupy one-third of the stroke position below the guide grooves 511. At the same time, because the length stroke of the guide grooves 541 is one-third of that of the guide grooves 511, the moving distance of the positioning shafts 52 located in the guide grooves 541 is one-third of the moving distance of the positioning shafts 52 located in the guide grooves 511; Therefore, when the electric gear 1 5 drives the inner gear ring 51 to rotate counterclockwise, when the positioning shaft 52 moves to one-third of the travel of the guide groove 511, the push plate 1 53 also moves one-third of the travel, reaches the two-thirds position below the guide groove 511, and is located at the end of the guide groove 541. When the rotation continues, the positioning shaft 52 on the inner gear ring 51 is located at the two-thirds position of the guide groove 511, and the push plate 1 53 contacts the push plate 2 55 on the other side. With further rotation, the positioning shaft 52 on the inner gear ring 51 moves to the end of the guide groove 511, and the push plate 1 53 pushes the contacting push plate 2 55, thereby driving the outer gear ring 54 to start rotating. Finally, the positioning shaft 52 on the outer gear ring 54 is about to move to the end of the guide groove 541, and then the corresponding rotation driving process of the two gear rings is completed; The adjusting member includes a rotating drum 56 rotatably arranged in each water groove 20 , and the rotating drum 56 is provided with a flow hole 561 for circulating water flow, and a full gear 57 is provided on the rotating drum 56 , and the full gears 57 of the inner and outer rings are correspondingly meshed with the inner gear ring 51 or the outer gear ring 54 .

[0031] Furthermore, in the initial state, the flow holes 561 on the two-ring rotating drum 56 are both in a closed state, that is, the flow holes 561 are in a horizontal state, and are not connected to the water channel 20, so that the water flow cannot flow; and according to the above mechanism, when the positioning shaft 52 on the inner gear ring 51 moves to one-third of the travel of the guide groove 511, as the inner gear ring 51 rotates, the full gear 57 at the inner ring position is synchronously meshed and rotated with the inner gear ring 51, thereby driving the inner ring rotating drum 56 to rotate 90 degrees, so that the flow holes 561 turn to the longitudinal position, thereby connecting with the water channel 20, and realizing a small amount of water drainage operation; When a large amount of water needs to be processed, the inner gear ring 51 continues to be driven to rotate. When the positioning shaft 52 is located at two-thirds of the travel of the guide groove 511, the inner ring drum 56 rotates again and temporarily resumes the closed state. At the same time, the push plate 1 53 has contacted the push plate 2 55 at the upper position. Then the inner gear ring 51 continues to be driven to rotate, and the inner ring drum 56 resumes the open state, and the positioning shaft 52 reaches the end of the guide groove 511. At the same time, the push plate 1 53 pushes the upper push plate 2 55, causing the outer gear ring 54 to rotate and engage with the outer ring full gear 57, thereby driving the outer ring drum 56 to rotate and open, so that the flow holes 561 of the inner and outer rings are connected to the water trough 20, which significantly increases the number of drainage channels to meet the drainage needs of large amounts of water.

[0032] After use, the inner gear ring 51 and the outer gear ring 54 can be driven to return to their original positions through the electric gear 1 5 to close the flow holes 561 on each rotating drum 56 to ensure the sealing of the manhole cover 2 when it is not in the drainage state.

[0033] It can be seen that through the coordinated operation of the internal gear ring 51 and the external gear ring 54, the drainage requirements for different water volumes can be flexibly met. Specifically, by adjusting the connection state between the flow-through holes 561 and the water trough 20 according to actual needs, compared with the traditional fixed hole position design, the cooperation of the driving member and the adjusting member can quickly and effectively adjust the number and opening state of the flow-through holes 561. This method not only realizes the adjustability of the drainage volume without opening the manhole cover 2, but also further avoids potential safety accidents caused by opening the manhole cover, while enhancing the safety and stability of the device during use, providing a strong guarantee for meeting the drainage requirements under various complex weather conditions.

[0034] As Figure 8 and Figure 9 shown, an electric gear two 6 is fixedly arranged on the upper side wall of the cavity, and a gear ring 61 that is rotationally connected and meshes with the electric gear two 6 is provided. The gear ring 61 is located between the two sets of rotating cylinders 56, and the layout of the gear ring 61 is misaligned with that of both the internal gear ring 51 and the external gear ring 54. A contact plate 62 corresponding to the layout and number of the inner and outer rotating cylinders 56 is provided on the gear ring 61. The contact plate 62 is trapezoidal in shape, and both of its sides have inclined surfaces. A sliding rod 63 that is in contact and cooperation with the contact plate 62 is slidably inserted into the end of the rotating cylinder 56 facing the gear ring 61. Two connecting seats 64 are provided inside each rotating cylinder 56. One connecting seat 64 is connected to the inner wall of the rotating cylinder 56, and the other connecting seat 64 is connected to the end of the sliding rod 63. Spring pieces 65 for dredging the flow-through holes 561 are hinged between the same-side ends of the connecting seats 64.

[0035] Specifically, the electric gear two 6 drives the gear ring 61 to rotate, causing the contact plate 62 fixed thereon to rotate and come into contact with the adjacent sliding rod 63. By utilizing the inclined surface design of the contact plate 62, the sliding rod 63 is pushed to slide inside the rotating cylinder 56, and then the connected connecting seat 64 is pushed to approach the other connecting seat 64. This action simultaneously squeezes the spring pieces 65 connected thereto, causing the spring pieces 65 on both sides to undergo adaptive hinged rotation and arch outwards, thereby ejecting the impurities at the positions of the flow-through holes 561 to achieve the dredging effect. According to actual usage requirements, this dredging mechanism can be started synchronously with the drainage operation to ensure the stable operation of the drainage process.

[0036] Embodiment 2: On the basis of Embodiment 1, as Figure 10 and Figure 11As shown in the figure, an opening is provided in the middle of the manhole cover 2. Connecting members are symmetrically clamped on the side wall of the opening. An installation rod 73 is fixedly arranged between the connecting members. The installation rod 73 is arranged longitudinally and extends into the manhole ring 1. An articulated seat 75 is arranged along the circumference at the bottom end of the installation rod 73. Expansion rods 76 with expansion ends connected by hinges are hinged on each articulated seat 75. The expansion ends of the expansion rods 76 protrude from the corresponding articulated seats 75, so that a part of the expansion ends of the expansion rods 76 is located below the installation rod 73. An umbrella-shaped filter screen 77 is arranged between the outer cylinders of the expansion rods 76. The design of the umbrella-shaped filter screen 77 can effectively intercept larger sundries from entering the drainage system in the well, prevent pipeline blockage, thereby ensuring smooth water flow. At the same time, through the design of the expansion rod 76, the umbrella-shaped filter screen 77 can be expanded or folded according to actual needs. Coupled with the snap-fastening and quick-disassembly design of the connecting member, it can be disassembled and taken out after being folded for subsequent cleaning.

[0037] As Figure 10 shown, the connecting member includes two connecting frames 7. The opposite ends of the two connecting frames 7 are fixedly connected to the top end of the installation rod 73. A clamping rod 71 that is in clamping fit with the inner wall of the opening of the manhole cover 2 is slidably inserted through each connecting frame 7. An elastic member II 72 is arranged between the clamping rod 71 and the inner wall of the corresponding connecting frame 7. In this embodiment, the elastic member II 72 is a spring, which can provide the necessary elastic force for the reset of the clamping rod 71. When it is necessary to disassemble the connecting member from the manhole cover 2, only need to push the clamping rods 71 on both sides to slide along the corresponding connecting frames 7 towards the installation rod 73. At this time, the elastic member II 72 deforms accordingly, releasing the clamping restriction of the clamping rod 71 on the inner wall of the opening of the manhole cover 2, so as to achieve quick disassembly.

[0038] As Figure 10 and Figure 11 shown, a push rod 74 that penetrates and slides in the installation rod 73 and whose bottom end is in contact and cooperation with the protruding expansion end of the expansion rod 76 is arranged. The push rod 74 slides in the up and down direction. Moving shafts 741 are arranged on both sides of the upper end of the push rod 74. Right-angled sliding grooves 731 are symmetrically opened on the installation rod 73. The moving shafts 741 are slidably embedded in the right-angled sliding grooves 731 on the same side.

[0039] Specifically, the right-angled sliding groove 731 is a "C"-shaped groove body, making it a groove body with two right-angled corners up and down. When the moving shaft 741 is located in the horizontal groove position on the upper side of the right-angled sliding groove 731, the moving shaft 741 is in a state of abutting against the groove wall. At the same time, the push rod 74 is completely embedded in the installation rod 73, and the ends of the two are flush. The umbrella-shaped filter screen 77 is also not restricted and remains in the unfolded state; When it is necessary to fold the umbrella-shaped filter screen 77, directly rotate the push rod 74, so that the moving shaft 741 slides along the upper horizontal slot and transfers to the upper corner of the right-angle chute 731. Then, push the moving shaft 741 downward to make it slide down, thereby driving the push rod 74 to move downward and contact the protruding telescopic end of the telescopic rod 76, so as to push the telescopic rod 76 to rotate on the hinge seat 75 and cause the telescopic end of the telescopic rod 76 to stretch, so as to fold the umbrella-shaped filter screen 77. Then, continue to rotate the moving shafts 741 on both sides to make them abut against the lower horizontal slot to stabilize the folded state of the umbrella-shaped filter screen 77, so as to achieve the effect of quick folding and removal.

[0040] As Figures 1 - 3 shown, four rotating seats 3 are rotatably arranged at intervals along the circumference of the top of the well ring 1. Two protruding shafts 31 are respectively arranged on both sides of the upper end of the rotating seat 3. Four groups of arc-shaped through grooves 30 adapted to the layout of the rotating seats 3 are opened on the manhole cover 2. The two arc-shaped through grooves 30 in the same group are arranged oppositely, and the protruding shaft 31 is slidably and abutted with the adjacent arc-shaped through groove 30.

[0041] Specifically, the arc-shaped through groove 30 has the same principle as the right-angle chute 731, but the arc-shaped through groove 30 only has a right-angle corner above. By pushing the rotating seat 3 to rotate, the protruding shaft 31 is transferred to the corresponding right-angle corner, that is, the abutting restriction between the protruding shaft 31 and the arc-shaped through groove 30 is released, so that the manhole cover 2 can be disassembled.

[0042] As Figure 2 and Figure 3 shown, a metal sheet 32 is arranged on the rotating seat 3, and a magnet 33 magnetically coupled with the adjacent metal sheet 32 is arranged in the well ring 1. The position of the rotating seat 3 is fixed by this magnetic coupling method to ensure that the rotating seat 3 can remain stable in various working states.

[0043] As Figure 1 , Figure 4 and Figure 5As shown in the figure, the opening side wall of the manhole cover 2 is provided with an assembly frame 41 with a symmetrical layout. The assembly frame 41 is misaligned with the connection frame 7, and an exploration cover 4 is inserted between the two assembly frames 41. There are two grooves on the top of the exploration cover 4, and a cross plate is arranged in the grooves. By passing the traction rope through the cross plates on both sides, the disassembly and assembly of the exploration cover 4 can be easily realized by means of the pulling force, so as to facilitate the subsequent inspection of the well conditions by the staff. Moreover, a clamping block 42 that is clamped and adapted to the exploration cover 4 is slidably embedded in each of the assembly frames 41. An elastic member 43 is arranged between the clamping block 42 and the inner wall of the corresponding assembly frame 41. In this embodiment, the elastic member 43 is a spring, which can provide the necessary elastic force for the movement of the clamping block 42. Through the clamping cooperation between the clamping block 42 and the exploration cover 4, the firm installation of the exploration cover 4 on the manhole cover 2 is ensured. In addition, the clamping block 42 has inclined surfaces on the upper and lower sides. By simply pulling the exploration cover 4, it can be quickly taken out, making the disassembly of the exploration cover 4 more convenient.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A manhole cover with adjustable drainage capacity, characterized by comprising: A manhole ring (1), on which hydrophobic channels (11) are circumferentially spaced; A manhole cover (2) with two rings of water channels (20), embedded at the wellhead of the manhole ring (1). A gap is reserved between the manhole cover (2) and the inner wall of the manhole ring (1) for water flow to flow to the hydrophobic channels (11), and the manhole cover (2) has a cavity inside; A driving member, including an electric gear one (5) arranged in the cavity, and an inner tooth ring (51) and an outer tooth ring (54) that rotate concentrically and correspond to the inner and outer rings of the water channels (20) respectively. The inner tooth ring (51) meshes with the electric gear one (5). Symmetrical guide grooves (511) are provided on the inner tooth ring (51), and corresponding guide grooves (541) shorter than the guide grooves (511) are provided on the outer tooth ring (54). Positioning shafts (52) that are respectively slidably embedded in the guide grooves (511) and the guide grooves (541) are also provided in the cavity. Push plates one (53) are symmetrically arranged on the inner tooth ring (51), and two groups of push plates two (55) that are in contact and cooperate with the adjacent push plates one (53) are correspondingly arranged on the outer tooth ring (54). The push plates one (53) are located between the two push plates two (55) in the same group; An adjusting member, including a rotating cylinder (56) rotating in each of the water channels (20). Flow holes (561) for water flow are provided on the rotating cylinders (56), and full gears (57) are provided on the rotating cylinders (56). The full gears (57) of the inner and outer rings are correspondingly meshed with the inner tooth ring (51) or the outer tooth ring (54).

2. The manhole cover with adjustable drainage capacity according to claim 1, characterized in that, An electric gear two (6) is arranged in the cavity, and a tooth ring (61) that is rotationally connected and meshes with the electric gear two (6). Contact plates (62) corresponding to the layout and quantity of the inner and outer ring rotating cylinders (56) are provided on the tooth ring (61). A sliding rod (63) that is in contact and cooperates with the contact plates (62) is slidably arranged in the rotating cylinder (56). Two connecting seats (64) are built in each of the rotating cylinders (56). One of the connecting seats (64) is connected to the inner wall of the rotating cylinder (56), and the other connecting seat (64) is connected to the end of the sliding rod (63). Spring pieces (65) for dredging the flow holes (561) are hinged between the same-side ends of the connecting seats (64).

3. The manhole cover with adjustable drainage capacity according to claim 2, characterized in that, An opening is provided in the middle of the manhole cover (2). Connecting members are symmetrically clamped on the side wall of the opening. An installation rod (73) is arranged between the connecting members. A hinge seat (75) is arranged along the circumference at the bottom end of the installation rod (73). Telescopic rods (76) with telescopic ends hinged thereto are hinged on the hinge seats (75). The telescopic ends of the telescopic rods (76) protrude from the corresponding hinge seats (75), and an umbrella-shaped filter screen (77) is arranged between the outer cylinders of the telescopic rods (76).

4. The manhole cover with adjustable drainage capacity according to claim 3, characterized in that The connecting member comprises two connecting frames (7), one end of each of the connecting frames (7) on both sides being connected to the top of the mounting rod (73), and a clamping rod (71) which is slidably inserted into each of the connecting frames (7) and is clamped with the inner wall of the opening of the manhole cover (2), and two elastic members (72) are provided between the clamping rod (71) and the corresponding inner wall of the connecting frame (7).

5. The manhole cover with adjustable drainage capacity according to claim 4, wherein A push rod (74) is slidably disposed through the mounting rod (73) and has a bottom end that contacts and cooperates with the protruding telescopic end of the telescopic rod (76). Moving shafts (741) are disposed on both sides of the upper end of the push rod (74). The mounting rod (73) is symmetrically provided with right-angled sliding grooves (731). The moving shafts (741) are slidably embedded in the right-angled sliding grooves (731) on the same side.

6. The manhole cover with adjustable drainage capacity according to claim 5, characterized in that, At least two rotating seats (3) are arranged at intervals along the circumferential direction on the top of the well ring (1), and a protruding shaft (31) is arranged on both sides of the upper end of the rotating seat (3). The well cover (2) is provided with a plurality of groups of arc-shaped through grooves (30) adapted to the layout of the rotating seat (3), and two arc-shaped through grooves (30) in the same group are arranged opposite to each other, and the protruding shaft (31) slides and abuts against adjacent arc-shaped through grooves (30).

7. The manhole cover with adjustable drainage capacity according to claim 6, characterized in that, A metal sheet (32) is provided on the rotating seat (3), and a magnet (33) is provided in the well ring (1) and is magnetically matched with the adjacent metal sheet (32) for fixing the position of the rotating seat (3).

8. The manhole cover with adjustable drainage capacity according to claim 7, characterized in that, The opening side walls of the manhole cover (2) are provided with symmetrically arranged assembly frames (41), an exploration cover (4) is inserted between the assembly frames (41) on both sides, and a clamping block (42) that is adapted to be clamped with the exploration cover (4) is slidably embedded in each of the assembly frames (41), and an elastic member (43) is provided between the clamping block (42) and the corresponding inner wall of the assembly frame (41).

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