Well lid for municipal engineering

Abstract

The invention is suitable for the technical field of municipal engineering, and provides a municipal engineering well lid which comprises a well lid base, a well lid plate, a drainage port, a filter screen and a fixing plate and further comprises a floating plate, a sealing control assembly and a locking assembly, the sealing control assembly comprises a control module, a mounting base and a closing module, and the locking assembly comprises a driving control module and a locking module. The floating plate is connected with the drive control module and the control module. According to the well lid for municipal engineering, the floating plate drives the sealing control assembly and the locking assembly to work at the same time, the locking assembly can lock the well lid plate to the fixing plate, the connection strength between the well lid plate and the well lid base is improved, the well lid plate and the well lid base are prevented from being separated due to water impact, the sealing control assembly relieves blocking of the drainage opening, and the well lid plate is prevented from being damaged. The communication area of the shaft and the external environment is increased, water in the shaft can be conveniently and rapidly discharged into the external environment, the water pressure borne by the shaft and the well lid plate is reduced, and the safety of passing pedestrians and vehicles is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal engineering, and in particular relates to a manhole cover for municipal engineering. Background Art

[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers and resin manhole covers. Manhole covers are generally round. Round manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. They are mainly used in green belts, sidewalks, motor vehicle lanes, docks and alleys.

[0003] The existing manhole cover includes a manhole cover body, a manhole cover frame and an intelligent control module. The lower end of the manhole cover body is provided with an intelligent locking device, and the upper end of the manhole cover body is provided with a reinforcement structure. The front and rear ends of the manhole cover frame are penetrated by limited holes near the right edge. The existing manhole cover can not only lock the manhole cover to achieve intelligent locking, but also reinforce the manhole cover to prevent the manhole cover from sinking due to gravity, thereby ensuring the walking safety of passers-by and improving the safety of the use of the manhole cover.

[0004] As the urban drainage system is still imperfect, when encountering heavy rain or sudden rain season, the water level in the well will rise rapidly and may overflow from the manhole cover body, causing the manhole cover body and the manhole cover frame to separate. This situation will pose a potential threat to passers-by and vehicles. The existing manhole cover design cannot ensure the stability of the connection between the manhole cover body and the manhole cover frame when facing the rising water level in the well.

[0005] Therefore, in view of the above status quo, it is urgent to develop a manhole cover for municipal engineering to overcome the shortcomings in current practical applications. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the embodiments of the present invention is to provide a manhole cover for municipal engineering to solve the problems in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A manhole cover for municipal engineering, comprising a manhole cover seat and a manhole cover plate, wherein the manhole cover seat is fixed at the top of a wellbore, the manhole cover plate is placed in the manhole cover seat, a ring-shaped drain port is opened in the middle of the manhole cover plate, a reinforcing rib is arranged in the drain port, a filter is installed in the drain port, both ends of the inner side of the manhole cover seat are fixed with fixing plates, the fixing plates are located below the bottom of the manhole cover plate, and further comprising:

[0009] A floating plate, which is arranged in the wellbore and below the bottom of the well cover;

[0010] A sealing and control assembly, the sealing and control assembly comprises a control module, a mounting seat and a closing module, one end of the control module is connected to the top of the floating plate, the other end of the control module is rotatably mounted on the mounting seat and connected to the closing module, both sides of the mounting seat are respectively fixedly connected to two fixing plates, the closing module is movably mounted on the mounting seat, the top of the closing module is in sliding contact with the bottom of the manhole cover plate, and the closing module is matched with the drain port;

[0011] A locking assembly, wherein the locking assembly comprises a drive control module and a locking module, wherein one end of the drive control module is connected to the top of the floating plate, the other end of the drive control module is vertically slidably mounted on the fixed plate, the other end of the drive control module is slidably connected to one end of the locking module, one end of the locking module is horizontally slidably mounted on the fixed plate, and the other end of the locking module is fixedly connected to the bottom of the manhole cover plate;

[0012] In the initial state, the closing module is located directly below the drain outlet and blocks the drain outlet; when the water level in the wellbore is high and contacts the bottom of the floating plate, the rising water in the wellbore drives the floating plate to move upward synchronously, and the floating plate drives one end of the control module and the drive control module to move upward synchronously;

[0013] The driving control module drives the locking module installed on the fixed plate to move horizontally by moving upward, and the locking module installed on the fixed plate is engaged with the locking module installed at the bottom of the manhole cover plate by moving horizontally, and the locking modules installed on the fixed plate and the bottom of the manhole cover plate lock the manhole cover plate on the fixed plate by engaging with each other;

[0014] One end of the control module moves upward and cooperates with the mounting seat to convert the upward movement into rotational movement, and the other end of the control module rotates, and the other end of the control module drives the closing module to rotate. The closing module moves toward the center of the manhole cover by rotating and releases the blockage of the drain outlet, and the water in the wellbore is quickly discharged into the external environment through the drain outlet.

[0015] As a further technical solution of the present invention, the control module includes:

[0016] A control cylinder whose bottom is connected to the top of the floating plate, and an arc groove A is opened on the side wall of the control cylinder;

[0017] Rotating a rotating shaft mounted on the mounting seat, the top of the rotating shaft being connected to the closed module, and the rotating shaft being concentric with the control cylinder; and

[0018] A sliding member A is fixed at the bottom of the rotating shaft, and the sliding member A is slidably matched with the arc groove A.

[0019] As a further technical solution of the present invention, the arc groove A adopts a spiral arc groove body, one end of the arc groove A is opened at the top of the control cylinder, and the other end of the arc groove A is opened at the bottom of the control cylinder.

[0020] As a further technical solution of the present invention, the closed module comprises:

[0021] A rotating disk fixed on the top of the rotating shaft, wherein the rotating disk is provided with an arc groove B in the circumferential direction;

[0022] Closing pieces are circumferentially distributed on the outer side of the rotating disk, and two adjacent closing pieces are slidably fitted together;

[0023] A slider A fixed to the inner side of the closure member, wherein the slider A is slidably mounted on a mounting seat; and

[0024] A sliding member B is fixed on the sliding block A, and the sliding member B is slidably matched with the arc groove B.

[0025] As a further technical solution of the present invention, the closure adopts a fan-shaped block structure, a block with a thickness less than the closure is fixed on one side of the closure, and a slot with a width greater than the thickness of the block is opened at the other end of the closure, and the slot on one closure slides with the block on an adjacent closure.

[0026] As a further technical solution of the present invention, the drive control module includes:

[0027] A connecting column with one end fixedly connected to the top of the floating plate, and the other end of the connecting column is vertically slidably mounted on the fixed plate;

[0028] A spring sleeved on the outside of the connecting column, wherein two ends of the spring are respectively connected to the floating plate and the fixed plate;

[0029] A guide post fixed vertically to the fixing plate; and

[0030] A moving block is vertically slidably connected to the guide column, the bottom of the moving block is fixedly connected to the other end of the connecting column, and an oblique groove is provided on the moving block to slide with the locking module.

[0031] As a further technical solution of the present invention, the locking module includes:

[0032] A locking cylinder fixed to the bottom of the manhole cover, wherein a locking groove is provided inside the locking cylinder;

[0033] A mounting shaft with one end slidingly engaged with the chute;

[0034] A slider B is horizontally slidably mounted in a horizontal slide groove provided on the fixed plate, wherein the slider B is connected to the other end of the mounting shaft; and

[0035] A locking piece is mounted on the mounting shaft, one end of which extends into the locking cylinder and intermittently cooperates with the locking groove.

[0036] As a further technical solution of the present invention, two locking pieces are arranged in one of the locking cylinders, the inner diameter of the locking cylinder is larger than the outer diameter of the two locking pieces as a whole, and the locking groove adopts an annular groove body.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] When the water level in the wellbore is normal, the sealing component is located directly below the drain port and blocks the drain port, which can not only prevent a large amount of water from the outside from pouring into the wellbore, but also bear the pressure caused by the outside on both sides of the drain port, thereby ensuring the integrity of the well cover and increasing the service life of the well cover. At this time, the locking component is not locked with the well cover, so that the well cover can be freely moved out of the well cover seat;

[0039] When the water level in the wellbore rises, when the water level in the wellbore is high and contacts the bottom of the floating plate, the water that improves the safety of pedestrians and vehicles passing by drives the floating plate to move up synchronously, and the floating plate drives the sealing assembly and the locking assembly to work at the same time. The locking assembly can lock the manhole cover plate on the fixed plate, increase the connection strength between the manhole cover plate and the manhole cover seat, avoid the separation of the manhole cover plate and the manhole cover seat due to water impact, and improve the installation stability of the manhole cover plate on the manhole cover seat; the sealing assembly releases the blockage of the drain port, increases the connection area between the wellbore and the external environment, and facilitates the water in the wellbore to be quickly discharged into the external environment through the drain port, thereby reducing the water pressure on the wellbore and the manhole cover plate, so that the manhole cover plate can be stably placed in the manhole cover seat, further improving the connection stability between the manhole cover plate and the manhole cover seat, avoiding the separation of the manhole cover plate and the manhole cover seat, and improving the safety of pedestrians and vehicles passing by.

[0040] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic structural diagram of a manhole cover for municipal engineering provided by an embodiment of the present invention from a first perspective.

[0042] Figure 2 A schematic structural diagram of a manhole cover for municipal engineering provided by an embodiment of the present invention from a second perspective.

[0043] Figure 3 A front view of the structure of a manhole cover for municipal engineering provided by an embodiment of the present invention.

[0044] Figure 4 for Figure 2 A magnified view of the structure in the middle.

[0045] Figure 5 for Figure 1 Schematic diagram of the structure after removing the manhole cover.

[0046] Figure 6 for Figure 5 Enlarged view of the structure of the middle sliding part B, slider A and closing part.

[0047] Figure 7 for Figure 5 Enlarged view of the structure of the central drive control module and the locking module.

[0048] Figure 8 for Figure 7 Structural side view of the partial section of the central drive control module and the locking module.

[0049] Reference numerals: 100-manhole cover seat, 200-manhole cover plate, 210-drain outlet, 300-filter screen, 400-floating plate, 500-fixed plate, 510-horizontal slide, 600-sealing control assembly, 610-control module, 611-control cylinder, 612-arc groove A, 613-sliding member A, 614-rotating shaft, 620-mounting seat, 630-sealing module, 631-rotating disk, 632-arc groove B, 633-sliding member B, 634-sliding block A, 635-closing member, 636-slot, 637-block, 700-locking assembly, 710-drive control module, 711-connecting column, 712-moving block, 713-spring, 714-slot, 715-guide column, 720-locking module, 721-installing shaft, 722-sliding block B, 723-locking member, 724-locking cylinder, 725-locking groove. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0052] like Figures 1 to 8As shown, a manhole cover for municipal engineering provided as an embodiment of the present invention includes a manhole cover seat 100 and a manhole cover plate 200, the manhole cover seat 100 is fixed at the top of the wellbore, the manhole cover plate 200 is placed in the manhole cover seat 100, a ring-shaped drain port 210 is opened in the middle of the manhole cover plate 200, a reinforcing rib is arranged in the drain port 210, a filter screen 300 is installed in the drain port 210, the filter screen 300 can block the debris in the external environment, and prevent the debris from clogging the drain port 210 due to accumulation, etc., both ends of the inner side of the manhole cover seat 100 are fixed with fixing plates 500, and the fixing plates 500 are located below the bottom of the manhole cover plate 200, and also include:

[0053] A floating plate 400, wherein the floating plate 400 is disposed in the wellbore and is located below the bottom of the well cover plate 200;

[0054] The sealing control assembly 600 includes a control module 610, a mounting seat 620 and a sealing module 630. One end of the control module 610 is connected to the top of the floating plate 400. The other end of the control module 610 is rotatably mounted on the mounting seat 620 and connected to the sealing module 630. Both sides of the mounting seat 620 are fixedly connected to two fixing plates 500 respectively. The sealing module 630 is movably mounted on the mounting seat 620. The top of the sealing module 630 is in sliding contact with the bottom of the manhole cover 200, and the sealing module 630 is matched with the drain port 210.

[0055] The locking assembly 700 includes a drive control module 710 and a locking module 720. One end of the drive control module 710 is connected to the top of the floating plate 400. The other end of the drive control module 710 is vertically slidably mounted on the fixed plate 500. The other end of the drive control module 710 is slidably connected to one end of the locking module 720. One end of the locking module 720 is horizontally slidably mounted on the fixed plate 500. The other end of the locking module 720 is fixedly connected to the bottom of the manhole cover plate 200.

[0056] In the initial state, the sealing module 630 is located directly below the drain port 210 and blocks the drain port 210, which can not only prevent a large amount of water from the outside from pouring into the wellbore, but also bear the pressure caused by the outside on both sides of the drain port 210, thereby ensuring the integrity of the wellbore cover 200 and improving the service life of the wellbore cover 200; when the water level in the wellbore is high and contacts the bottom of the floating plate 400, the water that improves the safety of passing pedestrians and vehicles drives the floating plate 400 to move up synchronously, and the floating plate 400 drives one end of the control module 610 and the drive control module 710 to move up synchronously;

[0057] The driving control module 710 can drive the locking module 720 installed on the fixing plate 500 to move horizontally by moving upward. The locking module 720 installed on the fixing plate 500 can be engaged with the locking module 720 installed at the bottom of the manhole cover plate 200 by moving horizontally. The locking modules 720 installed on the fixing plate 500 and the bottom of the manhole cover plate 200 can lock the manhole cover plate 200 on the fixing plate 500 by engaging with each other, thereby increasing the connection strength between the manhole cover plate 200 and the manhole cover seat 100, avoiding the separation of the manhole cover plate 200 and the manhole cover seat 100 due to water impact, improving the installation stability of the manhole cover plate 200 on the manhole cover seat 100, and improving the safety of passing pedestrians and vehicles;

[0058] One end of the control module 610 can convert the upward movement into a rotational movement by moving upward and cooperating with the mounting seat 620, so that the other end of the control module 610 can rotate. The other end of the control module 610 drives the closing module 630 to rotate. The closing module 630 can move toward the center of the manhole cover 200 and release the blockage of the drain port 210 by rotating, thereby increasing the connection area between the wellbore and the external environment, so that the water in the wellbore can be quickly discharged into the external environment through the drain port 210, thereby reducing the water pressure on the wellbore and the manhole cover 200, so that the manhole cover 200 can be stably placed in the manhole cover seat 100, further improving the connection stability between the manhole cover 200 and the manhole cover seat 100, avoiding the separation of the manhole cover 200 and the manhole cover seat 100, and further improving the safety of passers-by and vehicles.

[0059] like Figures 2 to 5 As shown, as a preferred embodiment of the present invention, the control module 610 includes a control cylinder 611, an arc groove A612, a sliding member A613 and a rotating shaft 614. The bottom of the control cylinder 611 is connected to the top of the floating plate 400. The side wall of the control cylinder 611 is provided with an arc groove A612 that slidably cooperates with the sliding member A613. The sliding member A613 is fixed to the bottom of the rotating shaft 614. The rotating shaft 614 is rotatably installed on the mounting seat 620. The top of the rotating shaft 614 is connected to the closed module 630. The rotating shaft 614 is concentric with the control cylinder 611.

[0060] like Figures 2 to 5 As shown, as a preferred embodiment of the present invention, the arc groove A612 preferably adopts a spiral arc groove body, one end of the arc groove A612 is opened at the top of the control cylinder 611, and the other end of the arc groove A612 is opened at the bottom of the control cylinder 611.

[0061] In this embodiment, the floating plate 400 drives the control cylinder 611 to synchronously move the arc groove A612 thereon upward, and the arc groove A612 drives the sliding member A613 that slides with it to slide from one end of the arc groove A612 to the other end thereof. Since the mounting seat 620 is fixed on the fixed plate 500, the sliding member A613 can drive the rotating shaft 614 to rotate during the sliding process in the arc groove A612, and the rotating shaft 614 drives the closing module 630 to rotate. The closing module 630 can rotate to move closer to the manhole cover plate 200. The manhole cover 200 is moved in the direction of the center and the blockage of the drain outlet 210 is released, thereby increasing the connection area between the wellbore and the external environment, so that the water in the wellbore can be quickly discharged into the external environment through the drain outlet 210, thereby reducing the water pressure on the wellbore and the manhole cover 200, so that the manhole cover 200 can be stably placed in the manhole cover seat 100, further improving the connection stability between the manhole cover 200 and the manhole cover seat 100, avoiding the separation of the manhole cover 200 and the manhole cover seat 100, and further improving the safety of passers-by and vehicles.

[0062] In a preferred embodiment, the sliding member A613 preferably adopts a columnar structure.

[0063] like Figures 2 to 6 As shown, as a preferred embodiment of the present invention, the closing module 630 includes a rotating disk 631, an arc groove B632, a sliding member B633, a slider A634 and a closing member 635. The rotating disk 631 is fixed on the top of the rotating shaft 614. The outer side of the rotating disk 631 is circumferentially distributed with closing members 635, and two adjacent closing members 635 are slidingly matched. The inner side of the closing member 635 is fixed with a slider A634, and the slider A634 is slidably installed on the mounting seat 620. A sliding member B633 is fixed to one end of the slider A634, and the slider B633 is slidably matched with the arc groove B632 circumferentially opened on the rotating disk 631.

[0064] The closure member 635 preferably adopts a fan-shaped block structure, a block 637 with a thickness less than the closure member 635 is fixed on one side of the closure member 635, and a slot 636 with a width greater than the thickness of the block 637 is opened at the other end of the closure member 635. The slot 636 on one closure member 635 slidably cooperates with the block 637 on an adjacent closure member 635.

[0065] In this embodiment, in the initial state, the sealing member 635 is located directly below the drain port 210 and blocks the drain port 210, which can not only prevent a large amount of water from the outside from pouring into the wellbore, but also bear the pressure caused by the outside on both sides of the drain port 210, thereby ensuring the integrity of the well cover 200 and improving the service life of the well cover 200;

[0066] The rotating shaft 614 drives the rotating disk 631 and the arc groove B632 thereon to rotate. The arc groove B can drive the slider A634 to slide toward the center of the rotating shaft 614 by rotating and slidingly cooperating with the sliding member B633. The sliding member A drives the closing member 635 thereon to move toward the center of the rotating shaft 614. The two adjacent closing members 635 slide and cooperate with each other, thereby releasing the blockage of the drain port 210 and increasing the connection area between the wellbore and the external environment, so that the water in the wellbore can be quickly discharged into the external environment through the drain port 210, thereby reducing the water pressure on the wellbore and the manhole cover 200, so that the manhole cover 200 can be stably placed in the manhole cover seat 100, further improving the connection stability between the manhole cover 200 and the manhole cover seat 100, avoiding the separation of the manhole cover 200 and the manhole cover seat 100, and further improving the safety of passing pedestrians and vehicles.

[0067] In a preferred embodiment, the sliding member B633 preferably adopts a columnar structure.

[0068] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, the drive control module 710 includes a connecting column 711, a moving block 712, a spring 713, an inclined groove 714 and a guide column 715, one end of the connecting column 711 is fixedly connected to the top of the floating plate 400, the other end of the connecting column 711 is vertically slidably installed on the fixed plate 500, the other end of the connecting column 711 is fixedly connected to the bottom of the moving block 712, the outer sleeve of the connecting column 711 is provided with a spring 713, the two ends of the spring 713 are respectively connected to the floating plate 400 and the fixed plate 500, the moving block 712 is vertically slidably connected to the guide column 715, the guide column 715 is vertically fixed to the fixed plate 500, and the moving block 712 is provided with an inclined groove 714 that slidably cooperates with the locking module 720.

[0069] In this embodiment, the floating plate 400 drives the connecting column 711 to move upward, so that the spring 713 is in a compressed state. When the water level in the wellbore decreases, the compressed spring 713 can drive the floating plate 400 to return to its initial position by releasing its own elastic force, so that the floating plate 400 can promptly and effectively deal with the subsequent problem of excessively high water level in the wellbore, thereby improving the applicability of the manhole cover.

[0070] The connecting column 711 drives the moving block 712 and the inclined groove 714 thereon to move upward synchronously. The inclined groove 714 can drive the locking module 720 installed on the fixed plate 500 to move horizontally by moving upward. The locking module 720 installed on the fixed plate 500 can be engaged with the locking module 720 installed at the bottom of the manhole cover plate 200 by moving horizontally. The locking modules 720 installed on the fixed plate 500 and the bottom of the manhole cover plate 200 can lock the manhole cover plate 200 on the fixed plate 500 by mutual engagement, thereby increasing the connection strength between the manhole cover plate 200 and the manhole cover seat 100, avoiding separation of the manhole cover plate 200 and the manhole cover seat 100 due to water impact, improving the installation stability of the manhole cover plate 200 on the manhole cover seat 100, and improving the safety of passing pedestrians and vehicles.

[0071] In a preferred embodiment, the inclined groove 714 is preferably an inclined strip-shaped groove body, and the inclined groove 714 can drive the locking module 720 to move horizontally by moving upward.

[0072] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, the locking module 720 includes a mounting shaft 721, a slider B722, a locking member 723, a locking cylinder 724 and a locking groove 725, one end of the mounting shaft 721 is slidably matched with the inclined groove 714, the other end of the mounting shaft 721 is mounted on the slider B722, the slider B722 is horizontally slidably mounted in the horizontal slide groove 510 opened on the fixed plate 500, a locking member 723 is installed on the mounting shaft 721, one end of the locking member 723 extends into the locking cylinder 724 and intermittently matches with the locking groove 725 opened inside the locking cylinder 724, and the locking cylinder 724 is fixed to the bottom of the manhole cover 200.

[0073] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, two locking members 723 are arranged in a locking cylinder 724, the inner diameter of the locking cylinder 724 is larger than the outer diameter of the two locking members 723 as a whole, and the locking groove 725 preferably adopts an annular groove body.

[0074] In this embodiment, in the initial state, two adjacent locking members 723 are both located in the same locking cylinder 724 and are not engaged with the locking groove 725. The inclined groove 714 can drive the installation shaft 721 to move by moving upward, and the installation shaft 721 simultaneously drives the slider B722 and the locking member 723 to move. The two adjacent locking members 723 both move in the direction close to the locking groove 725, and the locking member 723 engages with the locking groove 725 by moving. The locking member 723 and the locking groove 725 can lock the manhole cover 200 on the fixing plate 500 by mutual engagement, thereby increasing the connection strength between the manhole cover 200 and the manhole cover seat 100, avoiding the separation of the manhole cover 200 and the manhole cover seat 100 due to water impact, improving the installation stability of the manhole cover 200 on the manhole cover seat 100, and improving the safety of passing pedestrians and vehicles.

[0075] In a preferred embodiment, the locking member 723 preferably adopts an S-shaped block structure, and the end of the locking member 723 that engages with the locking groove 725 is configured as a hook structure.

[0076] The working principle of the present invention is:

[0077] In the initial state, the sealing member 635 is located directly below the drain outlet 210 and blocks the drain outlet 210, which can not only prevent a large amount of water from the outside from pouring into the wellbore, but also bear the pressure caused by the outside on both sides of the drain outlet 210. The two adjacent locking members 723 are both located in the same locking cylinder 724 and are not engaged with the locking groove 725.

[0078] When the water level in the wellbore is high and contacts the bottom of the floating plate 400, the water, which improves the safety of pedestrians and vehicles passing by, drives the floating plate 400 to move upward synchronously, and the floating plate 400 drives the sealing assembly 600 and the locking assembly 700 to work at the same time;

[0079] The floating plate 400 drives the control cylinder 611 to synchronously move the arc groove A612 thereon upward, and the arc groove A612 drives the sliding member A613 that slides with it to slide from one end of the arc groove A612 to the other end thereof. Since the mounting seat 620 is fixed on the fixed plate 500, the sliding member A613 can drive the rotating shaft 614 to rotate during the sliding process in the arc groove A612, and the rotating shaft 614 drives the rotating disk 631 and the arc groove B632 thereon to rotate. The arc groove B can rotate and slide with the sliding member B633 to slide. The slider A634 is driven to slide toward the center of the rotating shaft 614, and the slider A drives the sealing member 635 thereon to move toward the center of the rotating shaft 614. The two adjacent sealing members 635 slide and cooperate with each other, thereby releasing the blockage of the drain port 210, increasing the connecting area between the wellbore and the external environment, and facilitating the water in the wellbore to be quickly discharged into the external environment through the drain port 210, thereby reducing the water pressure on the wellbore and the well cover 200, so that the well cover 200 can be stably placed in the well cover seat 100;

[0080] The floating plate 400 drives the connecting column 711 to move upward, so that the spring 713 is in a compressed state, and the connecting column 711 drives the moving block 712 and the inclined slot 714 thereon to move upward synchronously. The inclined slot 714 can drive the installation shaft 721 to move by moving upward, and the installation shaft 721 synchronously drives the slider B722 and the locking member 723 to move. The two adjacent locking members 723 move in the direction close to the locking slot 725, and the locking member 723 engages with the locking slot 725 by moving. The locking member 723 and the locking slot 725 can lock the manhole cover plate 200 on the fixing plate 500 by engaging with each other, thereby increasing the connection strength between the manhole cover plate 200 and the manhole cover seat 100, and preventing the manhole cover plate 200 and the manhole cover seat 100 from being separated due to water impact;

[0081] The above is the working principle of the manhole cover for municipal engineering.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manhole cover for municipal engineering, comprising a manhole cover seat and a manhole cover plate, wherein the manhole cover seat is fixed at the top of the shaft, the manhole cover plate is placed in the manhole cover seat, a ring-shaped drain port is opened in the middle of the manhole cover plate, a reinforcing rib is arranged in the drain port, a filter is installed in the drain port, both ends of the inner side of the manhole cover seat are fixed with fixing plates, the fixing plates are located below the bottom of the manhole cover plate, and the characteristics are as follows: Also includes: A floating plate, which is arranged in the wellbore and below the bottom of the well cover; A sealing and control assembly, the sealing and control assembly comprises a control module, a mounting seat and a closing module, one end of the control module is connected to the top of the floating plate, the other end of the control module is rotatably mounted on the mounting seat and connected to the closing module, both sides of the mounting seat are respectively fixedly connected to two fixing plates, the closing module is movably mounted on the mounting seat, the top of the closing module is in sliding contact with the bottom of the manhole cover plate, and the closing module is matched with the drain port; A locking assembly, wherein the locking assembly comprises a drive control module and a locking module, wherein one end of the drive control module is connected to the top of the floating plate, the other end of the drive control module is vertically slidably mounted on the fixed plate, the other end of the drive control module is slidably connected to one end of the locking module, one end of the locking module is horizontally slidably mounted on the fixed plate, and the other end of the locking module is fixedly connected to the bottom of the manhole cover plate; In the initial state, the closing module is located directly below the drain outlet and blocks the drain outlet; when the water level in the wellbore is high and contacts the bottom of the floating plate, the rising water in the wellbore drives the floating plate to move upward synchronously, and the floating plate drives one end of the control module and the drive control module to move upward synchronously; The driving control module drives the locking module installed on the fixed plate to move horizontally by moving upward, and the locking module installed on the fixed plate is engaged with the locking module installed at the bottom of the manhole cover plate by moving horizontally, and the locking modules installed on the fixed plate and the bottom of the manhole cover plate lock the manhole cover plate on the fixed plate by engaging with each other; One end of the control module moves upward and cooperates with the mounting seat to convert the upward movement into rotational movement, and the other end of the control module rotates, and the other end of the control module drives the closing module to rotate. The closing module moves toward the center of the manhole cover by rotating and releases the blockage of the drain outlet, and the water in the wellbore is quickly discharged into the external environment through the drain outlet.

2. The manhole cover for municipal engineering according to claim 1, characterized in that: The control module comprises: A control cylinder whose bottom is connected to the top of the floating plate, and an arc groove A is opened on the side wall of the control cylinder; Rotating a rotating shaft mounted on the mounting seat, the top of the rotating shaft being connected to the closed module, and the rotating shaft being concentric with the control cylinder; and A sliding member A is fixed at the bottom of the rotating shaft, and the sliding member A is slidably matched with the arc groove A.

3. The manhole cover for municipal engineering according to claim 2, characterized in that: The arc groove A adopts a spiral arc groove body, one end of the arc groove A is opened at the top of the control cylinder, and the other end of the arc groove A is opened at the bottom of the control cylinder.

4. The manhole cover for municipal engineering according to claim 2, characterized in that: The closed module comprises: A rotating disk fixed on the top of the rotating shaft, wherein the rotating disk is provided with an arc groove B in the circumferential direction; Closing pieces are circumferentially distributed on the outer side of the rotating disk, and two adjacent closing pieces are slidably fitted together; A slider A fixed to the inner side of the closure member, wherein the slider A is slidably mounted on a mounting seat; and A sliding member B is fixed on the sliding block A, and the sliding member B is slidably matched with the arc groove B.

5. The manhole cover for municipal engineering according to claim 4, characterized in that: The closure adopts a fan-shaped block structure, a block with a thickness smaller than the closure is fixed on one side of the closure, a slot with a width larger than the thickness of the block is opened on the other end of the closure, and the slot on one closure slides with the block on an adjacent closure.

6. The manhole cover for municipal engineering according to claim 1, characterized in that: The drive control module comprises: A connecting column with one end fixedly connected to the top of the floating plate, and the other end of the connecting column is vertically slidably mounted on the fixed plate; A spring sleeved on the outside of the connecting column, wherein two ends of the spring are respectively connected to the floating plate and the fixed plate; A guide post fixed vertically to the fixing plate; and A moving block is vertically slidably connected to the guide column, the bottom of the moving block is fixedly connected to the other end of the connecting column, and an oblique groove is provided on the moving block to slide with the locking module.

7. The manhole cover for municipal engineering according to claim 6, characterized in that: The locking module comprises: A locking cylinder fixed to the bottom of the manhole cover, wherein a locking groove is provided inside the locking cylinder; A mounting shaft with one end slidingly engaged with the chute; A slider B is horizontally slidably mounted in a horizontal slide groove provided on the fixed plate, wherein the slider B is connected to the other end of the mounting shaft; and A locking member is mounted on the mounting shaft, one end of which extends into the locking cylinder and intermittently cooperates with the locking groove.

8. The manhole cover for municipal engineering according to claim 7, characterized in that: Two locking pieces are arranged in one of the locking cylinders, the inner diameter of the locking cylinder is larger than the outer diameter of the two locking pieces as a whole, and the locking groove adopts an annular groove body.

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