Split type anti-settling and anti-falling well lid

Abstract

The invention relates to a split type anti-settling and anti-falling well lid which comprises a well base and a cover plate. The well seat is located at the top of the shaft and comprises a bottom plate, a face plate and an annular vertical plate which are integrally formed, a plurality of evenly-distributed arc-shaped through grooves are formed in the bottom plate in the circumferential direction of the bottom plate, a plurality of reinforcing ribs are distributed between the bottom plate and the face plate at equal intervals, and an anti-sinking structure formed by concrete is poured in a gap between the bottom plate and the face plate; the cover plate is arranged in the well seat in a covering manner; the anti-falling mechanism is arranged at the lower end of the cover plate and comprises an anti-falling plate, a water filtering groove is formed in the anti-falling plate, a water filtering plate matched with the water filtering groove is arranged in the water filtering groove, one end of the water filtering plate is hinged to the water filtering groove, and the lower end of the water filtering plate is connected with a driving part for driving the water filtering plate to rotate along a hinge point; the driving piece is in contact with the lower end surface of the cover plate; a reset spring used for driving the water filtering plate to close the water filtering groove is arranged in the driving piece. The anti-settling and anti-falling drainage system has the properties of settling prevention, falling prevention, drainage and the like, and is high in structural strength and good in safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of manhole covers, and in particular relates to a split manhole cover that prevents subsidence and falling. Background Art

[0002] Manhole covers are generally round and are used in green belts, sidewalks, motorway lanes, docks, etc. They are used to cover roads or deep wells to prevent people or objects from falling. Manhole covers can be divided into single-layer, double-layer, cast iron, ductile iron, composite, cement, etc.

[0003] Nowadays, most of the manhole covers on the road have the phenomenon of settlement, causing the road surface to sink, which brings certain safety hazards to driving on the road. At the same time, the existing manhole cover anti-fall technology is mostly designed with anti-fall nets, which are mostly made of nylon. The strength of the anti-fall nets decreases by 40% after 2 years of UV aging, and the safety is poor. However, the existing mechanical anti-fall devices have the problems of complex structure, poor drainage, and inconvenient maintenance and replacement. Those skilled in the art are in urgent need of solving the above technical problems. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a split anti-settling and anti-falling manhole cover, which takes into account the anti-settling, anti-falling, drainage and other performances, has high structural strength and good safety.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A split manhole cover for preventing subsidence and falling, comprising a manhole seat and a cover plate;

[0007] The well seat is located at the top of the wellbore and includes an integrally formed bottom plate, a face plate, and an annular vertical plate. The bottom plate and the face plate are connected by the annular vertical plate. The outer diameter of the face plate is smaller than that of the bottom plate. The bottom plate is provided with a plurality of evenly distributed arcuate through grooves along its circumference. A plurality of reinforcing ribs are equidistantly distributed between the bottom plate and the face plate. One side of the reinforcing ribs contacts the annular vertical plate. An anti-sinking structure composed of concrete is poured in the gap between the bottom plate and the face plate.

[0008] A cover plate is disposed in the well seat, wherein a first bearing platform and a second bearing platform are provided in the well seat, wherein the first bearing platform and the second bearing platform are stepped, and the cover plate is mounted on the first bearing platform, and the cover plate and the upper end surface of the well seat are coplanar or approximately coplanar;

[0009] an anti-fall mechanism, which is arranged at the lower end of the cover plate and mounted on the second bearing platform, comprising an anti-fall plate, a water filter trough being provided on the anti-fall plate, a matching water filter plate being arranged in the water filter trough, one end of the water filter plate being hinged to the water filter trough, a driving member being connected to the lower end of the water filter plate for driving the water filter plate to rotate along the hinge point, the driving member being in contact with the lower end surface of the cover plate, and the driving member driving the water filter plate to rotate along the hinge point when the cover plate descends under the action of gravity, so that the water filter plate is in an open state with the water filter trough;

[0010] A return spring for driving the water filter plate to close the water filter trough is provided in the driving member.

[0011] In a preferred embodiment of the present invention, the driving member includes a guide sleeve, a guide rod slidably installed in the guide sleeve, the upper end of the guide rod extends to the outer end of the anti-fall plate, and a limit cover is provided on the extended end of the guide rod, and the limit cover is installed on the anti-fall plate.

[0012] In a preferred embodiment of the present invention, the guide rod is stepped, the return spring is sleeved on the guide rod, and the return spring is fixed to the step surface of the guide rod and the lower end surface of the limit cover;

[0013] A limiting groove is provided in the circumference of the guide sleeve, a hinge rod is connected to the lower end of the water filter plate, and a limiting groove is passed through one end of the hinge rod away from the water filter plate to connect with the guide rod.

[0014] In a preferred embodiment of the present invention, there are 6 water filter grooves evenly distributed along the circumferential direction of the anti-fall plate, at least two symmetrical slots are opened on the outer edge of the anti-fall plate, and an overflow groove is opened along the width direction of the slots.

[0015] In a preferred embodiment of the present invention, fish scale grooves are provided on the anti-falling plate, and the fish scale grooves are arranged at intervals with the center of the anti-falling plate as the center.

[0016] In a preferred embodiment of the present invention, the inner diameter of the annular vertical plate is smaller than the inner diameter of the wellbore.

[0017] In a preferred embodiment of the present invention, the cover plate includes a cover plate body, on which a plurality of anti-slip protrusions are distributed, and the anti-slip protrusions are in a cross shape;

[0018] A water filtering hole is provided on the cover body, and a water filtering cavity is formed between the lower end of the cover body and the anti-falling plate.

[0019] Beneficial effects:

[0020] The present invention discloses a split-type anti-settling and anti-falling manhole cover. The manhole base is integrally formed of a bottom plate, a panel, and an annular vertical plate. The structure has high strength and strong pressure resistance, and is not easily deformed after long-term use. Reinforcement ribs are distributed between the bottom plate and the panel to enhance the rigidity of the manhole base and prevent structural deformation. The stepped design of the first and second bearing platforms can respectively carry the cover plate and the anti-falling mechanism, thereby dispersing pressure and extending the life of the manhole cover.

[0021] Concrete is poured into the gap between the bottom plate and the panel of the well seat, which is consolidated with the top of the well shaft, thereby strengthening the connection strength between the well seat and the well shaft and effectively preventing the well seat from sinking due to ground subsidence. The arc-shaped groove on the bottom plate is conducive to the bonding of concrete, further enhancing the bonding strength between the well seat and the surrounding roadbed, and maintaining the flatness of the manhole cover and the road surface;

[0022] When the cover plate is missing, the return spring in the driving member will automatically push the water filter plate to close the water filter trough, forming an interception net to prevent people or vehicles from falling into the well. The anti-fall mechanism adopts a modular design, which is easy to replace and maintain, without the need to remove the whole well cover, reducing maintenance costs and time;

[0023] The multi-stage drainage design of the present invention and the opening and closing design of the water filter trough and the water filter plate can not only ensure normal drainage, but also automatically close when the cover plate is missing to prevent falling; the overflow trough design can still drain a small amount of water even if the water filter plate is closed, thereby increasing the reliability of drainage; the vortex diversion design of the fish scale trough can accelerate the drainage speed, reduce the water retention on the surface of the anti-fall plate, and prevent clogging by debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a split-type anti-settling and anti-falling manhole cover provided by the present invention;

[0025] Figure 2 An exploded view of a split-type anti-settling and anti-falling manhole cover provided by the present invention;

[0026] Figure 3 This is a structural schematic diagram of the well seat of the present invention;

[0027] Figure 4 The structure diagram of the anti-fall mechanism of the present invention is as follows Figure 1 ;

[0028] Figure 5 This is a schematic structural diagram of the anti-fall plate of the present invention;

[0029] Figure 6 The structure diagram of the anti-fall mechanism of the present invention is as follows Figure 2 ;

[0030] Figure 7 A half-section view of the anti-fall mechanism of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the cover plate of the present invention.

[0032] In the figure: 1 well base, 11 bottom plate, 12 panel, 13 annular vertical plate, 14 reinforcing ribs, 15 first bearing platform, 16 second bearing platform;

[0033] 2 cover plate, 21 cover plate body, 22 anti-slip protrusion;

[0034] 3 anti-fall mechanism, 31 anti-fall plate, 311 water filter trough, 312 card slot, 313 overflow trough, 314 fish scale trough, 32 water filter plate, 33 driving part, 331 guide sleeve, 332 guide rod, 333 limit cover, 334 hinged rod. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1-5 As shown, the present invention provides a split-type anti-settling and anti-falling manhole cover, comprising a manhole base 1 and a cover plate 2;

[0037] The well seat 1 is located at the top of the wellbore and includes an integrally formed bottom plate 11, a panel 12, and an annular riser 13. The bottom plate 11 and the panel 12 are connected by the annular riser 13. The outer diameter of the panel 12 is smaller than that of the bottom plate 11. The bottom plate 11 is provided with a plurality of evenly distributed arcuate grooves along its circumference. A plurality of reinforcing ribs 14 are equidistantly distributed between the bottom plate 11 and the panel 12. One side of the reinforcing rib 14 contacts the annular riser 13. A concrete anti-sinking structure is cast in the gap between the bottom plate 11 and the panel 12.

[0038] A cover plate 2 is provided in the well seat 1. A first supporting platform 15 and a second supporting platform 16 are provided in the well seat 1. The first supporting platform 15 and the second supporting platform 16 are stepped. The cover plate 2 is mounted on the first supporting platform 15. The cover plate 2 and the upper end surface of the well seat 1 are coplanar or approximately coplanar.

[0039] When the hopper 31 is in the closed position, the hopper 31 is in the closed position, and the hopper 31 is in the closed position, so that the hopper 31 is in the open position, and the hopper 31 is in the closed position.

[0040] The working principle and beneficial effects of the above embodiment are as follows:

[0041] The manhole cover 1 of the present invention is integrally formed by a base plate 11, a panel 12 and an annular vertical plate 13. The outer diameter of the base plate 11 is larger than that of the panel 12 to form a support surface, distributing the pressure borne by the manhole cover to the surrounding roadbed. The reinforcing ribs 14 enhance the structural rigidity and prevent deformation.

[0042] Concrete is poured into the gap between the bottom plate 11 and the panel 12 and consolidated with the top of the shaft. The arc-shaped groove design facilitates the bonding between the concrete inside and outside the bottom plate 11, enhances the connection strength between the well seat 1 and the shaft, and maintains the flatness with the road surface;

[0043] The stepped bearing platform design can respectively carry the cover plate 2 and the anti-fall mechanism 3, ensuring the stability and safety of the manhole cover. The cover plate 2 is installed on the first bearing platform 15 of the manhole base 1, and its upper end surface is coplanar or approximately coplanar with the upper end surface of the manhole base 1, ensuring the flatness of the manhole cover and the surrounding ground.

[0044] The cover plate 2 presses on the driving member 33 of the anti-fall mechanism 3, forcing the water filter plate 32 to rotate and open the water filter trough 311 for normal drainage. When the cover plate 2 is normal, the water filter trough 311 remains unobstructed, allowing rainwater to pass through. When the cover plate 2 is missing, the driving member 33 loses pressure, and the water filter plate 32 returns to its original position under the action of the return spring, closing the water filter trough 311 and forming an interception net to prevent people and vehicles from falling.

[0045] The anti-sinking structure of the present invention reduces the height difference between the manhole cover and the road surface, reducing the risk of bumps. The anti-falling mechanism 3 is automatically triggered when the cover plate 2 is missing to prevent accidents. The anti-falling mechanism 3 adopts a modular design and can be directly replaced without the need for overall disassembly.

[0046] The present invention forms an integrally formed well seat 1 and adopts concrete casting, has strong pressure resistance, is not easy to deform after long-term use, and the stepped bearing platform disperses the pressure of the cover plate 2, thereby extending the service life of the well cover.

[0047] In one embodiment,

[0048] like Figure 6-7 As shown, the driving member 33 includes a guide sleeve 331, a guide rod 332 slidably mounted in the guide sleeve 331, the upper end of the guide rod 332 extending to the outer end of the anti-fall plate 31, and a limit cover 333 is sleeved on the extended end of the guide rod 332, and the limit cover 333 is mounted on the anti-fall plate 31;

[0049] The guide sleeve 331 is fixed on the anti-fall plate 31 and serves as a sliding track for the guide rod 332 to ensure that its vertical movement does not deviate; the guide rod 332 can slide up and down in the guide sleeve 331, and the upper end extends to the outside of the anti-fall plate 31 and contacts the lower end surface of the cover plate 2. When the cover plate 2 is installed normally, its gravity presses the guide rod 332 to move downward, thereby driving the water filter plate 32 to rotate and open, ensuring that the opening and closing action of the water filter plate 32 is accurate.

[0050] In one embodiment,

[0051] The guide rod 332 is stepped, and the return spring is sleeved on the guide rod 332. The return spring is fixed to the stepped surface of the guide rod 332 and the lower end surface of the limit cover 333.

[0052] A limiting groove is provided on the circumference of the guide sleeve 331, and a hinge rod 334 is connected to the lower end of the water filter plate 32. The hinge rod 334 has a limiting groove on one end facing away from the water filter plate 32 and is connected to the guide rod 332.

[0053] The thick diameter section of the guide rod 332 slides with the guide sleeve 331, and the thin diameter section is used to socket the reset spring. The two ends of the reset spring are respectively fixed to the step surface of the guide rod 332 and the lower end surface of the limit cover 333. When the cover plate 2 is pressed, the guide rod 332 moves downward, and the spring is stretched, driving the water filter plate 32 to open; when the cover plate 2 is missing, the spring resets, driving the guide rod 332 to move upward, realizing the rapid closing of the water filter plate 32.

[0054] In one embodiment,

[0055] There are six water filter grooves 311 evenly distributed along the circumference of the anti-falling plate 31. At least two symmetrical slots 312 are opened on the outer edge of the anti-falling plate 31 to facilitate the removal of the anti-falling plate 31. An overflow groove 313 is opened along the width direction of the slots 312.

[0056] The anti-fall plate 31 has six water filter grooves 311 evenly distributed along the circumference to ensure maximum drainage area and avoid local water accumulation. All water filter grooves 311 open and close synchronously to ensure full coverage during anti-fall and full flow during drainage.

[0057] At least two symmetrical slots 312 are provided on the outer edge of the anti-fall plate 31 for inserting special tools to facilitate the extraction of the anti-fall plate 31 during maintenance;

[0058] After the water filter 311 is closed, the overflow trough 313 can still drain a small amount of water, thereby increasing drainage security.

[0059] In one embodiment,

[0060] The anti-fall plate 31 is provided with fish scale grooves 314, which are arranged at intervals with the center of the anti-fall plate 31 as the center.

[0061] The vortex-type diversion design of the arc-shaped fish-scale groove 314 can accelerate the drainage speed, reduce the water retention on the surface of the anti-fall plate 31, and effectively prevent clogging by debris.

[0062] In one embodiment,

[0063] The inner diameter of the annular vertical plate 13 is smaller than the inner diameter of the wellbore; the inner diameter of the annular vertical plate 13 is 5-10 cm smaller than the inner diameter of the wellbore, forming a stepped socket structure.

[0064] In one embodiment,

[0065] like Figure 8 As shown, the cover plate 2 includes a cover plate body 21, on which a plurality of anti-slip protrusions 22 are distributed. The anti-slip protrusions 22 are in a cross shape.

[0066] A water filter hole is provided on the cover body 21, and a water filter cavity is formed between the lower end of the cover body 21 and the anti-fall plate 31;

[0067] The cross-shaped anti-skid protrusions 22 form a directional drainage design, which can reduce surface water accumulation by 70% on rainy days. The anti-skid protrusions 22 guide the water flow into the water filter hole in a directional manner, avoiding surface runoff. Rainwater is quickly discharged through the water filter hole → water filter cavity → water filter trough 311 when the water filter plate 32 is in the open state.

[0068] In summary:

[0069] The present invention discloses a split-type anti-settling and anti-falling manhole cover. The manhole base is integrally formed of a bottom plate, a panel, and an annular vertical plate. The structure has high strength and strong pressure resistance, and is not easily deformed after long-term use. Reinforcement ribs are distributed between the bottom plate and the panel to enhance the rigidity of the manhole base and prevent structural deformation. The stepped design of the first and second bearing platforms can respectively carry the cover plate and the anti-falling mechanism, thereby dispersing pressure and extending the life of the manhole cover.

[0070] Concrete is poured into the gap between the bottom plate and the panel of the well seat, which is consolidated with the top of the well shaft, thereby strengthening the connection strength between the well seat and the well shaft and effectively preventing the well seat from sinking due to ground subsidence. The arc-shaped groove on the bottom plate is conducive to the bonding of concrete, further enhancing the bonding strength between the well seat and the surrounding roadbed, and maintaining the flatness of the manhole cover and the road surface;

[0071] When the cover plate is missing, the return spring in the driving member will automatically push the water filter plate to close the water filter trough, forming an interception net to prevent people or vehicles from falling into the well. The anti-fall mechanism adopts a modular design, which is easy to replace and maintain, without the need to remove the whole well cover, reducing maintenance costs and time;

[0072] The multi-stage drainage design of the present invention and the opening and closing design of the water filter trough and the water filter plate can not only ensure normal drainage, but also automatically close when the cover plate is missing to prevent falling; the overflow trough design can still drain a small amount of water even if the water filter plate is closed, thereby increasing the reliability of drainage; the vortex diversion design of the fish scale trough can accelerate the drainage speed, reduce the water retention on the surface of the anti-fall plate, and prevent clogging by debris.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. The front, back, left and right used in the text are not specific, and are mainly for a more intuitive description of the technical solution, and do not have a limiting effect. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A split-type anti-settling and anti-falling manhole cover, characterized by: It comprises a well seat (1) and a cover plate (2); A well seat (1) is located at the top of the wellbore and comprises an integrally formed bottom plate (11), a panel (12) and an annular vertical plate (13); the bottom plate (11) and the panel (12) are connected via the annular vertical plate (13); the outer diameter of the panel (12) is smaller than the outer diameter of the bottom plate (11); a plurality of evenly distributed arc-shaped through grooves are provided on the bottom plate (11) along its circumference; a plurality of reinforcing ribs (14) are distributed at equal intervals between the bottom plate (11) and the panel (12); one side of the reinforcing rib (14) is in contact with the annular vertical plate (13); and an anti-sinking structure composed of concrete is poured in the gap between the bottom plate (11) and the panel (12); A cover plate (2) is arranged in the well seat (1), a first bearing platform (15) and a second bearing platform (16) are provided in the well seat (1), the first bearing platform (15) and the second bearing platform (16) are stepped, the cover plate (2) is mounted on the first bearing platform (15), and the upper end surface of the cover plate (2) and the well seat (1) are coplanar or approximately coplanar; An anti-fall mechanism (3) is arranged at the lower end of the cover plate (2) and mounted on the second bearing platform (16), comprising an anti-fall plate (31), a water filter trough (311) is provided on the anti-fall plate (31), a water filter plate (32) matched with the water filter trough (311) is arranged in the water filter trough (311), one end of the water filter plate (32) is hinged to the water filter trough (311), and a driving member (33) is connected to the lower end of the water filter plate (32) for driving the water filter plate to rotate along the hinge point, the driving member (33) is in contact with the lower end surface of the cover plate (2), and when the driving member (33) descends under the action of the gravity of the cover plate (2), the driving member (33) drives the water filter plate (32) to rotate along the hinge point, so that the water filter plate (32) and the water filter trough (311) are in an open state; A return spring for driving the water filter plate (32) to close the water filter trough (311) is provided in the driving member (33).

2. The split-type anti-settling and anti-falling manhole cover according to claim 1, characterized in that: The driving member (33) includes a guide sleeve (331), a guide rod (332) slidably mounted in the guide sleeve (331), the upper end of the guide rod (332) extending to the outer end of the anti-fall plate (31), and a limit cover (333) is sleeved on the extended end of the guide rod (332), and the limit cover (333) is mounted on the anti-fall plate (31).

3. The split-type anti-settling and anti-falling manhole cover according to claim 2, characterized in that: The guide rod (332) is stepped, the return spring is sleeved on the guide rod (332), and the return spring is fixed to the step surface of the guide rod (332) and the lower end surface of the limit cover (333); A limiting groove is provided in the circumferential direction of the guide sleeve (331), and a hinge rod (334) is connected to the lower end of the water filter plate (32). The end of the hinge rod (334) facing away from the water filter plate (32) is provided with a limiting groove to connect to the guide rod (332).

4. The split-type anti-settling and anti-falling manhole cover according to claim 1 is characterized in that: Six water filter grooves (311) are evenly distributed along the circumferential direction of the anti-falling plate (31), at least two symmetrical clamping grooves (312) are opened on the outer edge of the anti-falling plate (31), and an overflow groove (313) is opened along the width direction of the clamping groove (312).

5. The split-type anti-settling and anti-falling manhole cover according to claim 1 is characterized in that: Fish scale grooves (314) are provided on the anti-falling plate (31), and the fish scale grooves (314) are arranged at intervals with the center of the anti-falling plate (31) as the center.

6. The split-type anti-settling and anti-falling manhole cover according to claim 1, characterized in that: The inner diameter of the annular vertical plate (13) is smaller than the inner diameter of the wellbore.

7. The split-type anti-settling and anti-falling manhole cover according to claim 1, characterized in that: The cover plate (2) comprises a cover plate body (21), and a plurality of anti-slip protrusions (22) are distributed on the cover plate body (21), wherein the anti-slip protrusions (22) are in a cross shape; A water filtering hole is provided on the cover plate body (21), and a water filtering cavity is formed between the lower end of the cover plate body (21) and the anti-falling plate (31).

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