CN113026918B

CN113026918B - Safety well lid with flood discharge function

Info

Publication number: CN113026918B
Application number: CN202110283543.9A
Authority: CN
Inventors: 周忠弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-06-03
Anticipated expiration: 2041-03-17
Also published as: CN113026918A

Abstract

The invention discloses a safety well lid with a flood discharge function, which fully considers the use safety on the basis of having the flood discharge function. This well lid has closed state and struts the state, and closed state and state of strutting can switch each other. When in normal use, the well cover is in a closed state; when taking place flood disasters, the road surface forms a large amount of ponding, can open the well lid and make the part in the state of strutting, and on the one hand, the well lid after strutting has bigger discharge opening to increaseing displacement, being favorable to quick flood discharge, on the other hand has formed "fence" structure around the well lid after strutting, can prevent that pedestrian or vehicle from carelessly falling into the well of launching, has improved the security.

Description

Safety well lid with flood discharge function

Technical Field

The invention relates to the technical field of well lids, in particular to a safety well lid with a flood discharge function.

Background

The sewer manhole cover is one of the main components of municipal flood discharge systems, and a common manhole cover is generally directly covered on a well head by a cover made of a whole block of cast iron or reinforced concrete. In the actual use process, the well cover is easily blocked by garbage and sundries in the drainage process, so that the drainage is not smooth. Particularly, in rainstorm weather, the water drainage is not timely, so that waterlogging is easily caused on roads and cities. In this case, the conventional treatment is to directly open the cover of the sewer well to enlarge the drainage opening and increase the drainage rate. However, the method easily causes pedestrians or vehicles to fall into the sewer well carelessly, and has great potential safety hazard.

Therefore, how to design a safety well lid with a flood discharge function can also ensure the safety of pedestrians and vehicles on the basis of timely flood discharge, which is a technical problem to be solved by technical personnel in the field.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the safety well cover with the flood discharge function, which can ensure the safety of pedestrians and vehicles on the basis of timely flood discharge.

The purpose of the invention is realized by the following technical scheme:

a safety well lid with flood discharge function includes: the device comprises a base body, a cover body and a lifting assembly;

the base body is of a hollow cavity structure, the base body is provided with an earth surface opening end and an underground hidden end, the cover body is positioned at the earth surface opening end of the base body, and the underground hidden end of the base body is provided with a supporting structure;

the lifting assembly comprises a lifting guide clamping seat and a lifting moving part; the lifting guide clamping seat is arranged on the supporting structure and is provided with a lifting guide clamping cavity, and the lifting movable part is movably inserted in the lifting guide clamping cavity;

two ends of the lifting movable piece are respectively provided with a lifting guide clamping block and a cover body supporting and blocking structure; the cover body supporting structure is a protruding structure along the periphery of the lifting movable piece;

the cavity wall of the lifting guide clamping cavity is provided with a lifting guide groove and a distraction locking groove which are matched with the lifting guide clamping block and are mutually communicated;

the cover body is provided with a plurality of drainage plates which are distributed around the support structure of the cover body; the drainage plate is provided with a rotating end and a pressing end, the rotating end of the drainage plate is rotatably arranged at the open end of the ground surface of the base body, and the pressing end of the drainage plate is pressed on the cover body supporting structure;

and the lifting moving part is provided with a power-assisted handle.

In one embodiment, the cover body supporting and blocking structure is provided with a supporting and blocking inclined surface.

In one embodiment, the cover body supporting and blocking structure is a truncated cone structure, and the cover body supporting and blocking structure of the truncated cone structure has a smoothly-transitioned supporting inclined surface.

In one embodiment, the cover supporting structure is a cylinder structure.

In one embodiment, a containing groove is formed in the lifting movable member, and the power-assisted handle is contained in the containing groove.

In one embodiment, the cavity wall of the lifting guide clamping cavity is provided with a closed locking groove matched with the lifting guide clamping block, and the closed locking groove is communicated with the lifting guide groove.

In one embodiment, the expansion locking groove has an expansion locking to position end; the closed locking slot has a closed locking to position end.

In one embodiment, the cover body supporting structure is provided with a drainage plate supporting groove for supporting the pressing end of the drainage plate.

In one embodiment, the rotating end of the drainage plate is hinged to the ground surface opening end of the base body, the rotating end of the drainage plate is provided with a hinge through hole, and the ground surface opening end of the base body is provided with a hinge rod matched with the hinge through hole.

In one embodiment, a hazard warning strip is affixed to the cover spreader structure.

The safety well lid with the flood discharge function fully considers the use safety on the basis of the flood discharge function. This well lid has closed state and struts the state, and closed state and state of strutting can switch each other. When in normal use, the well cover is in a closed state; when taking place flood disasters, the road surface forms a large amount of ponding, can open the well lid and make the part in the state of strutting, and on the one hand, the well lid after strutting has bigger discharge opening to increaseing displacement, being favorable to quick flood discharge, on the other hand has formed "fence" structure around the well lid after strutting, can prevent that pedestrian or vehicle from carelessly falling into the well of launching, has improved the security.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a closed state diagram of a safety well lid with a flood discharge function according to an embodiment of the present invention;

fig. 2 is a view illustrating an opened state of the safety well lid with flood discharge function according to an embodiment of the present invention;

fig. 3 is an internal structure view of the safety well lid with flood discharge function in a closed state shown in fig. 1;

fig. 4 is an internal structure view of the safety well lid with flood discharge function in the unfolded state shown in fig. 2;

fig. 5 is an exploded view of the safety well lid having a flood discharge function shown in fig. 4;

fig. 6 is a schematic view illustrating different status changes of the safety well lid with flood discharge function according to an embodiment of the present invention;

fig. 7 is a structural view of a safety well lid with a flood discharge function according to another embodiment of the present invention;

FIG. 8 is a block diagram of a lift moving member according to one embodiment of the present invention;

fig. 9 is a schematic view of different state changes of the safety well lid with flood discharge function installed at a sewer well based on the cover supporting structure of the column structure according to one embodiment of the present invention;

fig. 10 is a schematic view illustrating different status changes of the safety manhole cover with flood discharge function installed at a sewer well based on a cover supporting structure of a column structure and a reinforcing structure according to an embodiment of the present invention;

FIG. 11 is an exploded view of a lift assembly in accordance with one embodiment of the present invention;

FIG. 12 is a schematic view of another embodiment of the lift assembly based on a 360 degree annular groove of the present invention;

fig. 13 is a structural view of the safety well lid with flood discharge function provided with a closed locking groove according to an embodiment of the present invention.

A substrate-100;

open end-101 of earth's surface; an underground hidden terminal-102; -a support structure-110;

a cover body-200;

a drain plate-210; rotating end-211; a holding end-212; a hinge through-hole-213;

-a lifting assembly-300;

a lifting guide clamping seat-310; a lift moving member-320;

a lifting guide clamping cavity-311; an elevating guide groove-312; opening the locking groove-313; spread lock to bit terminal-314; closing the locking groove-315;

a lifting guide clamping block-321; a cover spreader structure-322; cylinder structure-322 a; a reinforcement structure-322 b; a power-assisted handle-323; distraction ramp-324; a support auxiliary groove-325; a housing groove-326; a drain plate support channel-327;

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention discloses a safety well lid 10 with a flood discharge function, which has a closed state (shown in figure 1) and an opened state (shown in figure 2). When in normal use, the well cover is in a closed state; when taking place flood disasters, the road surface forms a large amount of ponding, can open the well lid and make the part in the state of strutting, and on the one hand, the well lid after strutting has bigger discharge opening to increaseing displacement, being favorable to quick flood discharge, on the other hand has formed "fence" structure around the well lid after strutting, can prevent that pedestrian or vehicle from carelessly falling into the well of launching, has improved the security.

Next, the basic structure of the safety well lid 10 with flood discharge function will be described: therein for teaching

As shown in fig. 3 and 4, the safety well lid 10 with flood discharge function of the present invention comprises: base member 100, lid 200, lift assembly 300.

As shown in fig. 5, the base 100 is a hollow cavity structure, the base 100 has an open surface end 101 and a hidden underground end 102, the cover 200 is located at the open surface end 101 of the base 100, and the hidden underground end 102 of the base 100 is provided with a supporting structure 110.

As shown in fig. 5, the lifting assembly 300 includes a lifting guide engaging base 310 and a lifting moving member 320. The lifting guide clamping seat 310 is disposed on the supporting structure 110, the lifting guide clamping seat 310 has a lifting guide clamping cavity 311, and the lifting movable member 320 is movably inserted into the lifting guide clamping cavity 311. It should be noted that the term "the lifting movable member 320 is movably inserted into the lifting guide engaging cavity 311" is understood as follows: the lifting moving member 320 is rotatably and vertically inserted into the lifting guide clamping cavity 311, that is, the lifting moving member 320 can rotate around the central axis of the lifting guide clamping cavity 311 and can lift along the central axis of the lifting guide clamping cavity 311.

As shown in fig. 5, the two ends of the lifting moving member 320 are respectively provided with a lifting guiding block 321 and a cover supporting structure 322. The cover spacer structure 322 is a raised structure along the periphery of the lift mover 320.

As shown in fig. 5, the cavity wall of the elevation guide latch cavity 311 is formed with an elevation guide groove 312 and a distraction locking groove 313 which are engaged with the elevation guide latch block 321 and communicate with each other.

As shown in fig. 5, the cover 200 has a plurality of drainage plates 210, and the plurality of drainage plates 210 are distributed around the cover spacer structure 322; the drain board 210 has a rotation end 211 and a pressing end 212, the rotation end 211 of the drain board 210 is rotatably disposed at the ground surface opening end 101 of the base 100, and the pressing end 212 of the drain board 210 is pressed on the cover body supporting structure 322.

As shown in fig. 5, the lift moving member 320 is provided with a power-assisted handle 323.

So far, the basic structure of the safety well lid 10 with the flood discharge function is described. "C (B)

The operation principle of the safety manhole cover 10 with the flood discharge function of the above structure is explained below (please refer to fig. 3, 4, 5 and 6 together): "C (B)

Fig. 6 is a schematic view illustrating that the safety well lid 10 with a flood discharge function is installed at the sewer well 20 and is switched between a closed state and an opened state;

in normal use, the manhole cover is in a closed state (as shown in fig. 3), and the plate surface of the cover body 200 is flush with the road surface, so that normal passing of pedestrians or vehicles is not influenced;

when an emergency (such as a flood disaster) occurs, the manhole cover needs to be in a spread state (as shown in fig. 4), which is specifically performed as follows: the power-assisted handle 323 is pulled upwards by hands or an external tool, the power-assisted handle 323 further drives the lifting movable member 320 to lift upwards, the lifting guide clamping block 321 slides upwards along the lifting guide groove 312, and when the lifting guide clamping block 321 reaches the intersection of the lifting guide groove 312 and the opening locking groove 313, the power-assisted handle 323 rotates by an angle, so that the lifting guide clamping block 321 enters the opening locking groove 313 and is limited by the opening locking groove 313, and the whole lifting movable member 320 is in a locking state; meanwhile, the lifting movable member 320 lifted upwards can drive the cover supporting structure 322 to ascend together, the cover supporting structure 322 can support the plurality of surrounding drainage plates 210 in the ascending process, and the plurality of supported drainage plates 210 form a fully-surrounded fence structure, so that on one hand, gaps are formed among the plurality of drainage plates 210, the drainage quantity is increased, and rapid flood discharge is facilitated, on the other hand, the plurality of spread drainage plates 210 form a fully-surrounded fence structure, so that pedestrians or vehicles can be prevented from accidentally falling into a sewer well, and the safety is improved;

after the emergency situation is eliminated, the well lid in the opening state needs to be reset, so that the well lid is in the closing state again, and the method comprises the following steps: the assisting handle 323 is rotated by hands or an external tool, so that the lifting guide clamping block 321 is separated from the opening locking groove 313, when the lifting guide clamping block 321 reaches the intersection of the lifting guide groove 312 and the opening locking groove 313, the lifting movable element 320 is pressed downwards, the lifting guide clamping block 321 slides downwards along the lifting guide groove 312, and thus the lifting movable element 320 and the cover supporting and blocking structure 322 on the lifting movable element can reset again, so that the multi-block drainage plate 210 is in a closed state again, and the surface of the cover body 200 is level with the road surface again.

So far, the working principle of the safety well lid 10 with the flood discharge function is explained. "C (B)

Regarding the overall structure of the manhole cover, the following variations can be made:

as shown in fig. 1, in one embodiment, the base 100 has a cylindrical structure and the cover 200 has a circular plate structure. In another embodiment, as shown in fig. 7, the base 100 has a square cylinder structure and the cover 200 has a square plate structure. The two embodiments described above are well lid structures that are commonly used, but of course, the well lid structure is not limited to the above structural shapes, and can be adaptively adjusted according to actual situations.

With respect to the understanding of the support structure 110:

as shown in fig. 5, the support structure 110 is used to provide support for the lift guide bayonet 310 and the lift runner 320. In the closed state, the pressure applied to the cover 200 acts on the lifting moving element 320, and since the lifting moving element 320 is pressed on the supporting structure 110 and the supporting structure 110 is connected to the substrate 100, the pressure applied to the cover 200 is transmitted to the substrate 100 through the supporting structure 110; in the unfolded state, the lifting guide engaging seat 310 provides a supporting force for the lifting moving member 320, and the cover 200 and the lifting moving member 320 are transmitted to the supporting structure 110 through the lifting guide engaging seat 310 and further transmitted to the substrate 100. This allows the cover body 200 to withstand greater pressure, preventing the cover body 200 from being depressed by a pedestrian or a vehicle. It will be appreciated that the support structure 110 is primarily used to provide support, and the support needs to be compatible with the drainage performance, for example, drainage holes may be formed in the support structure 110.

Specific description of the structure of the lid spacer structure 322 is provided below: "C (B)

The cover spacer structure 322 of the present invention at least needs to solve the following two technical problems: on one hand, no matter the well lid is in a closed state or an opened state, the lid body supporting structure 322 needs to provide stable support for the plurality of drainage plates 210; on the other hand, when the well lid switches between the closed state and the opened state, the lid spacer structure 322 needs to provide a rotational driving force for the plurality of drainage plates 210.

The lid support structure 322 is a protruding structure along the periphery of the lift moving member 320, and the protruding structure protrudes outward along the periphery of the lift moving member 320, so that the above-mentioned two technical problems can be solved well. It should be particularly noted that in the process of opening the manhole cover, the opening formed between the pressing ends 212 of the drainage plates 210 is larger and larger, and the protruding structure protrudes outwards along the periphery of the lifting moving member 320, so that the protruding structure can compensate the opening, and therefore the drainage plates 210 are effectively prevented from sliding down under the action of gravity.

The cover support structure 322 is a protrusion structure along the periphery of the lift moving member 320, and the protrusion structure can be implemented as follows:

in the first embodiment, the cover spacer structure 322 has a spreading inclined surface 324 (as shown in fig. 5). It is obvious that the distraction slant surface 324 is the convex structure mentioned above. When the lifting moving member 320 is pulled up by the assisting handle 323, the pressing end 212 of the drainage plate 210 slides along the expanding inclined surface 324, and the expanding inclined surface 324 applies force to the drainage plate 210 at the same time, so that the rotating end 211 of the drainage plate 210 rotates around the ground surface opening end 101 of the base body 100, and therefore, the expanding inclined surface 324 can smoothly support and restore the plurality of surrounding drainage plates 210. Preferably, the cover supporting structure 322 is a truncated cone structure (as shown in fig. 5), and the cover supporting structure 322 of the truncated cone structure has a smoothly transitioned inclined supporting surface 324 (as shown in fig. 5), so that the pressing end 212 of the drainage plate 210 can smoothly slide along the smoothly transitioned inclined supporting surface 324 during the rotation of the lifting movable element 320, thereby avoiding the occurrence of the jamming phenomenon. Of course, in other embodiments, the cover body supporting structure 322 may also be a multi-pyramid structure (as shown in fig. 8), the cover body supporting structure 322 of the multi-pyramid structure also forms a supporting inclined plane 324, the supporting inclined plane 324 is in non-smooth transition, and the supporting inclined plane 324 is formed by surrounding a plurality of independent inclined facets, it can be understood that the cover body supporting structure 322 of the multi-pyramid structure may also realize supporting and resetting of the plurality of drainage plates 210;

in the second embodiment, the cover supporting structure 322 may also be a column structure 322a (as shown in fig. 9), and it is obvious that the column structure 322a is the above-mentioned protruding structure. The cylindrical structure 322a protrudes outward along the radial direction of the lifting moving member 320, so that the cylindrical structure 322a protruding outward can prop open the plurality of surrounding drainage plates 210 in the process of lifting the lifting moving member 320 upward.

The cylindrical structure 322a can be further optimized, for example, the cover supporting structure 322 is a cylindrical structure, so that during the rotation of the lifting moving element 320, the pressing end 212 of the drainage plate 210 can slide smoothly along the periphery of the cover supporting structure 322 with the cylindrical structure, thereby avoiding the occurrence of the clamping stagnation; for another example, in order to further improve the stability of the support, on the basis of the column structure 322a, a reinforcing structure 322b (as shown in fig. 10) is disposed between the column structure 322a and the lifting moving member 320, and the column structure 322a and the reinforcing structure 322b form a complete platform body structure, which is different from the platform body structure in the first embodiment, the platform body structure is mainly the reinforcing structure on the basis of the column structure 322a, and the platform body structure in the first embodiment is based on the smooth transition surface formed on the basis of the expanding inclined surface 324.

As can be understood from the above description of the specific structure of the cover body supporting structure 322, on one hand, no matter the manhole cover is in a closed state or an opened state, the cover body supporting structure 322 needs to provide stable support for the drainage plates 210; on the other hand, when the well lid is switched between the closed state and the opened state, the lid supporting structure 322 needs to provide a rotational driving force for the drainage plates 210; no matter what structural deformation is made to the cover spacer structure 322, as long as the technical problem can be solved, the specific structure thereof can be selected according to actual needs.

By describing the specific structure of the cover spacer structure 322, it can be seen that: when the cover-body supporting structure 322 has the expanding inclined surface 324, when the lifting/lowering moving member 320 is pulled up, the pressing end 212 of the drainage plate 210 slides along the expanding inclined surface 324, so that the cover-body supporting structure 322 is partially exposed out of the drainage plates 210 (as shown in fig. 6).

Next, a specific structure of the expanding locking groove 313 will be described:

as shown in fig. 11, the expansion locking groove 313 has an expansion locking to the bit end 314. The lifting guide clamping block 321 can be blocked by arranging the bracing lock to the position end 314. The lifting moving part 320 is pulled up and rotated, so that the lifting guide clamping block 321 enters the opening locking groove 313, the lifting guide clamping block 321 touches the opening locking end 314, the lifting moving part 320 can not rotate any more, at the moment, the lifting moving part 320 can be judged to rotate in place, the force applied to the power-assisted handle 323 is cancelled, the lifting moving part 320 can stably stay in the opening locking groove 313, and the well lid is in an opening state. The lifting movable piece 320 is rotated in the opposite direction through the boosting handle 323, so that the lifting guide clamping block 321 is far away from the opening locking end 314 and reaches the intersection of the lifting guide groove 312 and the opening locking groove 313, the lifting movable piece 320 is pressed downwards, the lifting guide clamping block 321 slides downwards along the lifting guide groove 312, and then the well lid is in a closed state again. In this embodiment, the expanding locking slot 313 is preferably a 90 degree arc slot (as shown in FIG. 11). Of course, the expanding locking groove 313 may be an arc-shaped groove with any angle, and is selected according to actual conditions. It will be appreciated that the distraction locking to the site end 314 will naturally occur as long as the distraction locking groove 313 is not a 360 degree annular groove;

as shown in fig. 12, the expanding locking groove 313 may be a 360-degree annular groove, so that the expanding locking groove 313 does not have the expanding locking to the position end 314, and this embodiment may be adopted. When the lifting guide clamping block 321 is located in the expanding locking groove 313, the lifting guide clamping block 321 can reach the intersection of the lifting guide groove 312 and the expanding locking groove 313 no matter whether the lifting movable piece 320 rotates forwards or reversely.

Understanding of the elevator guide groove 312 and the expansion lock groove 313:

the elevation guide groove 312 is used to limit and guide the sliding direction of the elevation guide engagement block 321, and the opening locking groove 313 is used to provide support for the elevation movable member 320 in the opened state. The structure of the elevation guide groove 312 and the opening locking groove 313 may be a groove opened on the wall of the elevation guide clamping cavity 311 (as shown in fig. 5); of course, the lift guiding slot 312 and the locking slot 313 may be through slots (not shown) penetrating the wall of the lift guiding latch cavity 311, that is, the wall of the lift guiding latch cavity 311 is pierced to form the lift guiding slot 312 and the locking slot 313. The configuration of the elevator guide groove 312 and the expansion lock groove 313 may be selected according to the actual manufacturing and application requirements as long as the functions can be performed.

As shown in fig. 13, in one embodiment, the cavity wall of the lifting guide clamping cavity 311 is further provided with a closed locking groove 315 engaged with the lifting guide clamping block 321 (after the well lid is installed, the closed locking groove 315 is located below the opened locking groove 313), and the closed locking groove 315 is communicated with the lifting guide groove 312. The closed locking groove 315 is used for locking the lifting movable member 320 in a closed state, that is, when the lifting guide clamping block 321 is located in the closed locking groove 315, the lifting movable member 320 cannot be pulled up. Thus, an irrelevant person who is not familiar with the manhole cover structure cannot smoothly pull up the lifting moving member 320, and only a worker who is familiar with the manhole cover structure can pull up the lifting moving member 320.

Reference may be made to the expanding locking groove 313 with respect to the structure of the closing locking groove 315, preferably the closing locking groove 315 has a closing locking to position end 316 (as shown in fig. 13). When the lifting movable member 320 is reset, the lifting guide clamping block 321 slides to the intersection of the closed locking groove 315 and the lifting guide groove 312, the lifting movable member 320 is rotated by the power-assisted handle 323, so that the lifting guide clamping block 321 enters the closed locking groove 315 and contacts the closed locking end 316, and at this time, the lifting movable member 320 can be stably in a closed state. Of course, similar to the structure of the expanding locking groove 313, the closing locking groove 315 may be an arc-shaped groove with any angle, or may be a 360-degree annular groove without the closing locking end 316, and is selected according to actual conditions.

In one embodiment, as shown in fig. 11, the lifting moving member 320 has a receiving groove 326, and the assist grip 323 is received in the receiving groove 326. The accommodating groove 326 provides an accommodating space for the power-assisted handle 323, so that the power-assisted handle 323 does not protrude and is higher than the plane of the cover body 200, and thus, pedestrians or vehicles can be prevented from colliding with the power-assisted handle 323.

In one embodiment, the rotating end 211 of the drain board 210 is hinged to the ground surface open end 101 of the base body 100, specifically, as shown in fig. 5, the rotating end 211 of the drain board 210 is provided with a hinge through hole 213, and the ground surface open end 101 of the base body 100 is provided with a hinge rod (not shown) matched with the hinge through hole 213. Thus, the drain board 210 can be smoothly turned around the hinge through hole 213 when it is spread.

In one embodiment, as shown in fig. 5, the cover supporting structure 322 is provided with a drainage plate supporting groove 327 for supporting the pressing end 212 of the drainage plate 210. In the closed state, the rotating end 211 of the drainage plate 210 is pressed against the ground surface opening end 101 of the base body 100, the pressing end 212 of the drainage plate 210 is pressed against the drainage plate support groove 327, and the drainage plate support groove 327 provides more stable support for the pressing end 212 of the drainage plate 210.

In one embodiment, a danger warning strip (not shown) is attached to the cover spacer structure 322, and is hidden under the ground together with the cover spacer structure 322 when the manhole cover is in a closed state; when the manhole cover is in the opening state, the danger warning strip is exposed out of the ground along with the rising of the lifting moving piece 320 and the cover body supporting and blocking structure 322, and can be seen by passing pedestrians and vehicles, so that warning is provided for the passing pedestrians and vehicles.

In one embodiment, the cover supporting structure 322 has a supporting auxiliary groove 325 (as shown in fig. 6), on one hand, when the manhole cover is in the closed state, the supporting auxiliary groove 325 forms an avoiding space, and after the cover supporting structure 322 is reset, the lifting guide clamping seat 310 is partially accommodated in the avoiding space, and on the other hand, when the manhole cover is in the closed state, the inclined surface of the supporting auxiliary groove 325 will press on the lifting guide clamping seat 310, i.e., the cover supporting structure 322 will surround one end surface of the lifting guide clamping seat 310 through the supporting auxiliary groove 325, so that the cover supporting structure 322 is not prone to shake, and the pressing end 212 of the drainage plate 210 can more stably press on the cover supporting structure 322.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a safety well lid with flood discharge function which characterized in that includes: the device comprises a base body, a cover body and a lifting assembly;

the base body is of a hollow cavity structure, the base body is provided with an earth surface opening end and an underground hiding end, the cover body is positioned at the earth surface opening end of the base body, and the underground hiding end of the base body is provided with a supporting structure;

and the lifting moving part is provided with a power-assisted handle.

2. The safety well lid with the flood discharge function according to claim 1, wherein the lid body supporting structure has an inclined supporting surface.

3. The safety well lid with the flood discharge function according to claim 2, wherein the cover body supporting and blocking structure is a truncated cone structure, and the cover body supporting and blocking structure of the truncated cone structure is provided with a smoothly-transited supporting and inclined surface.

4. The safety well lid with the flood discharge function according to claim 1, wherein the cover supporting structure is a column structure.

5. The safety well lid with the flood discharge function according to claim 1, wherein the lifting movable member is provided with a receiving groove, and the power-assisted handle is received in the receiving groove.

6. The safety well lid with the flood discharge function according to claim 1, wherein a closing locking groove matched with the lifting guide clamping block is formed in the wall of the lifting guide clamping cavity, and the closing locking groove is communicated with the lifting guide groove.

7. The safety well lid with the flood discharge function, according to claim 6, is characterized in that the expanding locking groove has an expanding locking position end; the closed locking slot has a closed locking to position end.

8. The manhole cover with a flood discharge function of claim 1, wherein the cover supporting structure is provided with a drainage plate supporting groove for supporting the pressing end of the drainage plate.

9. The safety well lid with the flood discharge function according to claim 1, wherein the rotating end of the drainage plate is hinged to the ground surface opening end of the base body, the rotating end of the drainage plate is provided with a hinge through hole, and the ground surface opening end of the base body is provided with a hinge rod matched with the hinge through hole.

10. The safety well lid with the flood discharge function according to claim 1, wherein a danger warning strip is attached to the cover body supporting structure.