CN112627316A

CN112627316A - Municipal administration drainage well lid

Info

Publication number: CN112627316A
Application number: CN202011603636.7A
Authority: CN
Inventors: 朱夏青; 唐道建
Original assignee: Dongyang Jusu Technology Co Ltd
Current assignee: Zhongji City Construction Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-09
Anticipated expiration: 2040-12-30
Also published as: CN112627316B

Abstract

The invention discloses a municipal drainage well lid, which relates to the technical field of municipal drainage well lids and comprises a main body frame, a folding drainage mechanism and a fixing mechanism, wherein a filter box is arranged at the bottom end of the main body frame, filter holes are formed in the outer wall of the filter box, and a filter bin is arranged in the filter box. The drainage efficiency of the drainage well cover can be effectively improved by arranging the main body frame, the accommodating groove, the lifting groove, the limiting sliding groove, the connecting groove, the filtering box, the filtering bin, the filtering hole, the first drainage cover, the second drainage cover, the drainage hole, the warning pipe, the limiting sliding block, the first sleeve, the second sleeve, the rotating connecting rod, the connecting column, the connecting hole and the floating block, the first drainage cover and the second drainage cover can be folded and lifted to form a gap with the main body frame, and accumulated water on the road surface can directly flow into a drainage pipeline along the gap, so that the accumulated water drainage speed is effectively improved, and the accumulated water is prevented from being accumulated on the ground for a long time to damage public facilities.

Description

Municipal administration drainage well lid

Technical Field

The invention relates to the technical field of municipal drainage well covers, in particular to a municipal drainage well cover.

Background

In urban construction, can not leave sewer engineering construction, this drainage well lid that just needs to set up a lot of drainage wells and be used for closing off drainage well, though present urban construction and set up many drainage well lids, still can meet the unable circumstances of discharging of surface gathered water when the heavy rain weather of motion, often need send the staff to lift the well lid on the road surface to the drainage efficiency of surface gathered water accelerates.

In places such as parks, squares and the like, because the vegetation is more, the fallen leaves of the vegetation easily cause the blockage of a drainage well cover, a large amount of accumulated water can be stored on the road surface of the vegetation and cannot be drained away in heavy rain weather, and because the places such as parks, squares and the like are not main road sections, under the condition of heavy rain, workers can arrange to drain water in the main road sections, the places such as parks, squares and the like cannot be considered, the large amount of accumulated water is stored in the parks for a long time, the ground of the squares can damage some public customs facilities on the ground, and therefore the maintenance cost of the public customs facilities is increased.

Therefore, the municipal drainage well cover for parks, squares and other places is invented.

Disclosure of Invention

The invention aims to: in order to solve the problem that the drainage well cover blocks up the unable automatic drainage, a municipal drainage well cover is provided.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a municipal administration drainage well lid, includes main body frame, folding drainage mechanism, fixed establishment, main body frame's bottom is provided with the rose box, the outer wall of rose box is provided with the filtration pore, the inside of rose box is provided with the filtration storehouse, the inside of filtration storehouse is provided with the kicking block, fixed establishment is located the inside top that is located the kicking block of filtration storehouse, main body frame's top is provided with accomodates groove, lift groove, the lift groove is located the both sides of accomodating the groove, the inside inner wall both sides that are located accomodating the groove of main body frame are provided with spacing spout, the inner wall bottom of lift groove is provided with the spread groove, folding drainage mechanism is located accomodates inslot portion.

Preferably, the folding drainage mechanism comprises a first drainage cover, a second drainage cover, a drainage hole, a warning pipe, a limiting slider, a first sleeve, a second sleeve and a rotating connecting rod, wherein the first sleeve is connected with one end of the outer wall of the first drainage cover, the second drainage cover is positioned at one end, close to the first sleeve, of the first drainage cover, the second sleeve is connected with the outer wall, close to the first drainage cover, of the second drainage cover, the drainage hole and the warning pipe are positioned at the top ends of the outer walls of the first drainage cover and the second drainage cover, the warning pipe is positioned on one side of the drainage hole, the rotating connecting rod is positioned in the middle of the first drainage cover and the second drainage cover and is mutually sleeved with the inner walls of the second sleeve and the rotating connecting rod, and the limiting slider is positioned on two sides of the outer walls of the first drainage cover and the second drainage cover.

Preferably, fixed establishment includes spliced pole, activity post, turning block and reset spring, the bottom of spliced pole is connected with the top of floating block, the top of spliced pole runs through spread groove to the inslot portion that goes up and down, spliced pole outer wall one side is located the position department of inslot portion that goes up and down and is provided with the connecting hole, one side that the connecting hole was kept away from to the spliced pole outer wall is located the inside position department of filter house and is provided with the recess, the inside inner wall one side that is located the recess of spliced pole is provided with movable groove, the position department that the recess inner wall both ends are close to movable groove is provided with the rotation groove, the activity post cup joints each other with the inner wall of recess, the turning block is located the outer wall both ends of activity post, reset spring is located movable inslot portion, reset.

Preferably, the number of the first sleeve pipe and the second sleeve pipe is provided with a plurality of, a plurality of the first sleeve pipe and the second sleeve pipe are alternately distributed on the outer wall of the rotating connecting rod, one end of the limiting sliding block, which is far away from the first drainage cover and the second drainage cover, is sleeved with the inner wall of the limiting sliding groove, and two sides of the rotating connecting rod penetrate through the inside of the lifting groove and are sleeved with the inner wall of the connecting hole on the side face of the connecting column.

Preferably, the width of the outer wall of the first drainage cover and the width of the outer wall of the second drainage cover are matched with the width of the inner wall of the containing groove, the whole length of the first drainage cover, the second drainage cover, the first sleeve and the second sleeve is matched with the length of the inner wall of the containing groove when the first drainage cover, the second drainage cover, the first sleeve and the second sleeve are in a horizontal state, a plurality of drainage holes are formed in the number of the drainage holes, and the plurality of the drainage holes are uniformly distributed at the top ends of the first drainage cover and the second drainage cover.

Preferably, the quantity of warning pipe is provided with a plurality ofly, and is a plurality of warning pipe evenly distributed is on the top of a drainage lid, No. two drainage lids, the inside packing of warning pipe has fluorescent paint.

Preferably, the bottom end of the floating block is not in contact with the bottom end of the inner wall of the filtering bin, the size of the outer wall of the floating block is smaller than that of the inner wall of the filtering bin, and the buoyancy of the floating block is larger than the whole weight of the folding drainage mechanism and the fixing mechanism.

Preferably, the one end that the activity post was kept away from to the turning block runs through to rotate the inslot portion and cup joint each other with the inner wall that rotates the groove, fixed establishment's quantity is provided with two, and two fixed establishment are the symmetrical state and distribute in the top both sides of floating block.

Preferably, the filter box is located right below the drain hole, and the width of the filter box is smaller than the whole width of the first drainage cover and the second drainage cover.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can effectively improve the drainage efficiency of the drainage well cover by arranging the main body frame, the accommodating groove, the lifting groove, the limiting sliding groove, the connecting groove, the filter box, the filter bin, the filter hole, the first drainage cover, the second drainage cover, the drain hole, the warning pipe, the limiting sliding block, the first sleeve, the second sleeve, the rotating connecting rod, the connecting post, the connecting hole and the floating block The second drainage cover is in a folding and rising state, and accumulated water on the road surface can directly flow into the drainage pipeline along the gap, so that the accumulated water drainage speed is effectively improved, and the accumulated water is prevented from being accumulated on the ground for a long time to damage public facilities;

2. the invention can facilitate the desilting operation of the filter bin through the main body frame, the accommodating groove, the lifting groove, the limiting sliding groove, the connecting groove, the filter box, the filter bin, the first drainage cover, the second drainage cover, the limiting sliding block, the first sleeve, the second sleeve, the rotating connecting rod, the connecting post, the connecting hole, the groove, the movable groove, the rotating groove, the movable post, the rotating block and the reset spring, when the first drainage cover and the second drainage cover are in a folding and rising state, the movable columns on the two sides are pressed, the movable columns can rotate by taking the rotating block as the center, the bottom ends of the movable columns can rotate out of the grooves and are positioned above the main body frame, can fix a drainage lid, No. two drainage lids in fold condition through the mutual extrusion in the top of activity post bottom and main body frame, can carry out the desilting operation to filtering the storehouse this moment, can effectively improve the work efficiency of desilting operation through mutually supporting of above a plurality of parts.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a structural sectional view of a main body frame according to the present invention;

fig. 4 is a cross-sectional exploded view of the body frame of the present invention;

FIG. 5 is an enlarged view of the invention at position A;

FIG. 6 is an enlarged view of the invention at position B;

FIG. 7 is a structural cross-sectional view of the securing mechanism of the present invention;

FIG. 8 is a cross-sectional exploded view of the securing mechanism of the present invention;

fig. 9 is an enlarged view of the position C of the present invention.

In the figure: 1. a main body frame; 101. a receiving groove; 102. a lifting groove; 103. a limiting chute; 104. connecting grooves; 2. a filter box; 201. a filtering bin; 202. a filtration pore; 3. a folding drainage mechanism; 301. a first drainage cover; 302. a second drainage cover; 303. a drain hole; 304. a warning tube; 305. a limiting slide block; 306. a first sleeve; 307. a second sleeve; 308. rotating the connecting rod; 4. a fixing mechanism; 401. connecting columns; 4011. connecting holes; 4012. a groove; 4013. a movable groove; 4014. a rotating groove; 402. a movable post; 403. rotating the block; 404. a return spring; 5. and (4) floating blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-9, a municipal drainage well lid comprises a main body frame 1, a folding drainage mechanism 3 and a fixing mechanism 4, wherein a filter box 2 is arranged at the bottom end of the main body frame 1, a filter hole 202 is formed in the outer wall of the filter box 2, a filter bin 201 is arranged inside the filter box 2, a floating block 5 is arranged inside the filter bin 201, the fixing mechanism 4 is located inside the filter bin 201 and located at the top end of the floating block 5, a containing groove 101 and a lifting groove 102 are arranged at the top end of the main body frame 1, the lifting groove 102 is located on two sides of the containing groove 101, limiting sliding grooves 103 are arranged on two sides of the inner wall of the containing groove 101 inside the main body frame 1, a connecting groove 104 is arranged at the bottom end of the inner wall of the lifting groove 102, and the folding drainage mechanism 3 is.

As a preferred embodiment of the invention, the folding drainage mechanism 3 comprises a first drainage cover 301, a second drainage cover 302, a drainage hole 303, a warning pipe 304, a limit slider 305, a first sleeve 306, a second sleeve 307 and a rotary connecting rod 308, wherein the first sleeve 306 is connected with one end of the outer wall of the first drainage cover 301, the second drainage cover 302 is positioned at one end of the first drainage cover 301 close to the first sleeve 306, the second sleeve 307 is connected with the outer wall of the second drainage cover 302 close to one end of the first drainage cover 301, the drainage hole 303 and the warning pipe 304 are positioned at the top ends of the outer walls of the first drainage cover 301 and the second drainage cover 302, the warning pipe 304 is positioned at one side of the drainage hole 303, the rotary connecting rod 308 is positioned at the middle position of the first drainage cover 301 and the second drainage cover 302 and is mutually sleeved with the inner walls of the first sleeve 306 and the second sleeve 307, the limit slider 305 is positioned at two sides of the outer walls of the first drainage cover 301 and the second drainage cover 302, the first drainage cover 301 and the second drainage cover 302 can be automatically lifted when rainwater on the road surface is accumulated through the folding drainage mechanism 3, so that water on the road surface can be quickly drained.

As a preferred embodiment of the invention, the fixing mechanism 4 comprises a connecting column 401, a movable column 402, a rotating block 403 and a return spring 404, the bottom end of the connecting column 401 is connected with the top end of the floating block 5, the top end of the connecting column 401 penetrates through the connecting groove 104 to the inside of the lifting groove 102, a connecting hole 4011 is arranged at the position of one side of the outer wall of the connecting column 401, which is positioned inside the lifting groove 102, a groove 4012 is arranged at the position of one side of the outer wall of the connecting column 401, which is far away from the connecting hole 4011, which is positioned inside the filter bin 201, a movable groove 4013 is arranged at one side of the inner wall of the groove 4012, rotating grooves 4014 are arranged at the positions of two ends of the inner wall of the groove 4012, the movable column 402 is sleeved with the inner wall of the groove 4012, the rotating block 403 is positioned at two ends of the outer wall of the movable column 402, the return, the buoyancy of the floating block 5 can be transmitted through the fixing mechanism 4, so that the lifting function of the folding drainage mechanism 3 is realized, and in addition, the angle fixation of the folding drainage mechanism 3 can be realized through the movable column 402, so that the desilting operation of the filter bin 201 is carried out.

As a preferred embodiment of the present invention, a plurality of first sleeves 306 and a plurality of second sleeves 307 are provided, the plurality of first sleeves 306 and the plurality of second sleeves 307 are alternately distributed on the outer wall of the rotating connecting rod 308, one end of the limiting slider 305 away from the first drainage cover 301 and the second drainage cover 302 is sleeved on the inner wall of the limiting chute 103, two sides of the rotating connecting rod 308 penetrate into the lifting groove 102 and are sleeved on the inner wall of the connecting hole 4011 on the side surface of the connecting column 401, and the connecting column 401 can drive the first drainage cover 301 and the second drainage cover 302 to perform a mutual folding operation through the rotating connecting rod 308 when moving upwards.

As a preferred embodiment of the invention, the width of the outer wall of the first drainage cover 301 and the second drainage cover 302 is matched with the width of the inner wall of the accommodating groove 101, the whole length of the first drainage cover 301, the second drainage cover 302, the first sleeve 306 and the second sleeve 307 is matched with the length of the inner wall of the accommodating groove 101 when the first drainage cover 301, the second drainage cover 302, the first sleeve 306 and the second sleeve 307 are in a horizontal state, a plurality of drainage holes 303 are arranged, and the drainage holes 303 are uniformly distributed at the top ends of the first drainage cover 301 and the second drainage cover 302, so that the daily drainage function of the well cover can be realized through the structure.

As a preferred embodiment of the present invention, a plurality of warning tubes 304 are provided, the warning tubes 304 are uniformly distributed at the top ends of the first drainage cover 301 and the second drainage cover 302, fluorescent paint is filled in the warning tubes 304, the fluorescent paint can continuously emit light for about 12 hours in the dark after being irradiated by visible light for 10 to 20 minutes, and the pedestrians can be warned by the light emission of the fluorescent paint in the warning tubes 304, so as to remind the positions and states of the manhole covers of the pedestrians.

As a preferred embodiment of the invention, the bottom end of the floating block 5 is not contacted with the bottom end of the inner wall of the filter bin 201, the size of the outer wall of the floating block 5 is smaller than that of the inner wall of the filter bin 201, the buoyancy of the floating block 5 is larger than the integral weight of the folding drainage mechanism 3 and the fixing mechanism 4, and when the floating block 5 rises along with the water level, the fixing mechanism 4 and the folding drainage mechanism 3 can be pushed to move upwards by the buoyancy of the floating block 5.

As a preferred embodiment of the present invention, one end of the rotating block 403, which is far away from the movable column 402, penetrates into the rotating groove 4014 and is sleeved with the inner wall of the rotating groove 4014, two fixing mechanisms 4 are provided, the two fixing mechanisms 4 are symmetrically distributed on two sides of the top end of the floating block 5, the rotating block 403 can rotate in the rotating groove 4014 through the movable column 402, and the fixing function of the folding drainage mechanism 3 can be realized through the movable column 402 inside the two fixing mechanisms 4.

As a preferred embodiment of the present invention, the filter box 2 is located right below the drainage hole 303, the width of the filter box 2 is smaller than the whole width of the first drainage cover 301 and the second drainage cover 302, the accumulated road water can flow into the filter box 2 through the drainage hole 303 for filtering, and when the folding drainage mechanism 3 is in a folded state, the accumulated road water can directly flow into the drainage pipeline without passing through the filter box 2, thereby increasing the drainage speed of the accumulated road water.

The working principle is as follows: when the municipal drainage well lid is used, the whole well lid is arranged above a drainage pipeline through the main body frame 1, the filter box 2 is positioned in the drainage pipeline, the length of the filter box 2 is less than that of the inner wall of the drainage pipeline, when the municipal drainage well lid meets the rainy weather, the road rainwater can flow into the filter bin 201 through the drainage holes 303 on the first drainage cover 301 and the second drainage cover 302, the rainwater filtered by the filter box 2 flows into the drainage pipeline through the filter holes 202, the filtered impurities can be accumulated at the bottom of the filter bin 201, the filtering speed of the filter bin 201 can be influenced along with the accumulation of the impurities in the filter bin 201 after the long-time use of the well lid, so that the drainage efficiency of the well lid is influenced, when the rainwater enters the filter bin 201 in the rainy weather, the drainage speed of the filter bin 2 is higher, the rainwater can be retained in the filter bin 201, and the road rainwater can not be drained in time and can be accumulated on the road surface, the rainwater level of the rainwater in the filtering bin 201 can be contacted with the floating block 5 along with the rising of the rainwater level, the floating block 5 can move upwards along with the rising of the rainwater level under the action of buoyancy, the floating block 5 can drive the first sleeve 306 and the second sleeve 307 to move upwards through the connecting column 401 and the rotating connecting rod 308, one end of the first drainage cover 301 and one end of the second drainage cover 302 can move upwards along with the first sleeve 306 and the second sleeve 307, the other end of the first drainage cover 301 and the other end of the second drainage cover 302 can move along the track of the limiting sliding groove 103 through the limiting sliding block 305 and approach to each other, namely the first drainage cover 301 and the second drainage cover 302 are lifted and folded, gaps are formed between the main body frame 1 and the first drainage cover 301 and the second drainage cover 302, the pavement accumulated water can flow into the drainage pipeline through the gaps, and the drainage pipeline does not need to be filtered by the filtering box 2 in the process of flowing in the drainage pipeline, the drainage speed of accumulated water can be effectively improved, the influence on walking of pedestrians caused by long-time existence of surface accumulated water is avoided, when the first drainage cover 301 and the second drainage cover 302 are folded and lifted, the warning pipe 304 on the end face is in an inclined state, fluorescent paint in the warning pipe 304 can shine to warn the pedestrians, the drainage cover is reminded to be in a lifted state at the moment, the pedestrians can avoid injury in time, when the warning pipe 304 is not rainy or has small rainwater and is parallel to the ground, the position of a manhole cover of the pedestrians can be reminded through the light emitting of the warning pipe 304, the pedestrians can be conveniently walked with certain brightness, rainwater in the filtering bin 201 can be slowly filtered and drained after the surface accumulated water is drained, the floating block 5 can move downwards along with the descending of the liquid level, at the moment, the connecting column 401, the rotating connecting rod 308, the first sleeve 306 and the second sleeve 307 can also move downwards along with the connecting column 401, and the first drainage cover 301 and, One end of the second drainage cover 302, which is located at the limiting slide block 305, can move in the opposite direction along the limiting slide groove 103, that is, the first drainage cover 301 and the second drainage cover 302 are in a parallel state with the main body frame 1 after returning to the original state, when the dredging operation needs to be performed on the filter bin 201, one end of the first drainage cover 301 and one end of the second drainage cover 302, which are located at the rotating connecting rod 308, can be pulled up, so that the first drainage cover 301 and the second drainage cover 302 are in a lifting and folding state, after the two drainage covers are completely pulled up, the top ends of the movable columns 402 on the connecting columns 401 at two sides are pressed, the movable columns 402 can rotate around the rotating groove 4014 through the rotating block 403, the top ends of the movable columns 402 can enter the movable groove 4013 and extrude the return spring 404, the bottom ends of the movable columns 402 can rotate out of the groove 4012, at this time, the bottom ends of the movable columns 402 can be located above the main body frame 1, and, The second drainage cover 302 slightly moves downwards for a certain distance to enable the bottom end of the movable column 402 to be in contact with the top end of the main body frame 1, the drainage cover can be released, a triangular fixing structure is formed among the movable column 402, the connecting column 401 and the main body frame 1, the first drainage cover 301 and the second drainage cover 302 are fixed in a folding and lifting state, dredging operation can be conducted on the interior of the filter bin 201 at the moment, after dredging operation is completed, the first drainage cover 301 and the second drainage cover 302 are lifted upwards to drive the movable column 402 to move upwards, the bottom end of the movable column 402 loses extrusion force when the bottom end of the movable column 402 is separated from the top end of the main body frame 1, the movable column 402 automatically resets under the action of a reset spring 404, the movable column 402 can be rotatably accommodated into the groove 4012, the side face of the movable column 402 is in a flush state with the side face of the connecting column 401, and the first drainage cover 301, the movable column 402 can be in a flush, The second drain cover 302 is restored.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a municipal administration drainage well lid, includes main body frame (1), folding drainage mechanism (3), fixed establishment (4), its characterized in that: the bottom of main body frame (1) is provided with rose box (2), the outer wall of rose box (2) is provided with filtration pore (202), the inside of rose box (2) is provided with filter house (201), the inside of filter house (201) is provided with floating block (5), fixed establishment (4) are located filter house (201) inside and are located the top of floating block (5), the top of main body frame (1) is provided with accomodates groove (101), lift groove (102) are located the both sides of accomodating groove (101), the inside inner wall both sides that are located accomodate groove (101) of main body frame (1) are provided with spacing spout (103), the inner wall bottom of lift groove (102) is provided with spread groove (104), folding drainage mechanism (3) are located accomodate inside groove (101).

2. The municipal drainage well lid of claim 1, wherein: the folding drainage mechanism (3) comprises a first drainage cover (301), a second drainage cover (302), a drainage hole (303), a warning pipe (304), a limiting slide block (305), a first sleeve (306), a second sleeve (307) and a rotating connecting rod (308), wherein the first sleeve (306) is connected with one end of the outer wall of the first drainage cover (301), the second drainage cover (302) is located at one end, close to the first sleeve (306), of the first drainage cover (301), the second sleeve (307) is connected with the outer wall of one end, close to the first drainage cover (301), of the second drainage cover (302), the drainage hole (303) and the warning pipe (304) are located at the top ends of the outer walls of the first drainage cover (301) and the second drainage cover (302), the warning pipe (304) is located on one side of the drainage hole (303), and the rotating connecting rod (308) is located in the middle positions of the first drainage cover (301) and the second drainage cover (302) and is connected with the first sleeve (306), The inner walls of the second sleeve (307) are mutually sleeved, and the limiting sliding blocks (305) are positioned on two sides of the outer walls of the first drainage cover (301) and the second drainage cover (302).

3. The municipal drainage well lid of claim 1, wherein: fixed establishment (4) is including spliced pole (401), activity post (402), turning block (403) and reset spring (404), the bottom of spliced pole (401) is connected with the top of floating block (5), the top of spliced pole (401) is run through spread groove (104) to lifting groove (102) inside, spliced pole (401) outer wall one side is located lifting groove (102) inside position department and is provided with connecting hole (4011), one side that connecting hole (4011) was kept away from to spliced pole (401) outer wall is located and filters storehouse (201) inside position department and is provided with recess (4012), the inside inner wall one side that is located recess (4012) of spliced pole (401) is provided with activity groove (4013), the position department that recess (4012) inner wall both ends are close to activity groove (4013) is provided with rotation groove (4014), activity post (402) cup joints each other with the inner wall of recess (4012), the turning block (403) is located at two ends of the outer wall of the movable column (402), the return spring (404) is located inside the movable groove (4013), and one end of the return spring (404) penetrates through the groove (4012) and is connected with one side of the outer wall of the movable column (402).

4. The municipal drainage well lid of claim 2, wherein: the quantity of a sleeve pipe (306), No. two sleeve pipes (307) is provided with a plurality ofly, and is a plurality of sleeve pipe (306), No. two sleeve pipes (307) distribute in turn each other on the outer wall of rotating connecting rod (308), the one end that a drainage lid (301), No. two drainage lids (302) were kept away from in spacing slider (305) cup joints each other with the inner wall of spacing spout (103), the both sides of rotating connecting rod (308) are run through to inside lift groove (102) and cup joint each other with connecting hole (4011) inner wall on spliced pole (401) side.

5. The municipal drainage well lid of claim 2, wherein: the drainage cover (301) and the drainage cover II (302) are matched in width of the outer wall with the width of the inner wall of the containing groove (101), the whole length of the drainage cover I (301), the drainage cover II (302), the sleeve pipe I (306) and the sleeve pipe II (307) is matched in length of the inner wall of the containing groove (101) when the drainage cover I (302), the sleeve pipe II (302), the sleeve pipe I (306) and the sleeve pipe II (307) are in a horizontal state, a plurality of drainage holes (303) are formed in the number, and the drainage holes (303) are uniformly distributed at the top ends of the drainage cover I (301) and the drainage cover II (302).

6. The municipal drainage well lid of claim 2, wherein: the quantity of warning pipe (304) is provided with a plurality ofly, and is a plurality of warning pipe (304) evenly distributed is on the top of a drainage lid (301), No. two drainage lids (302), warning pipe (304) inside packing has fluorescent paint.

7. The municipal drainage well lid of claim 1, wherein: the bottom of floating block (5) and the bottom of the inner wall of filter bin (201) are not in contact with each other, the size of the outer wall of floating block (5) is smaller than the size of the inner wall of filter bin (201), and the buoyancy of floating block (5) is greater than the whole weight of folding drainage mechanism (3) and fixing mechanism (4).

8. The municipal drainage well lid of claim 3, wherein: the one end that activity post (402) was kept away from in turning block (403) runs through to the inner wall that rotates groove (4014) inside and rotate groove (4014) and cup joints each other, the quantity of fixed establishment (4) is provided with two, and two fixed establishment (4) are the top both sides of symmetric state distribution at floating block (5).

9. The municipal drainage well lid of claim 1, wherein: the filter box (2) is located under the drain hole (303), and the width of the filter box (2) is smaller than the whole width of the first drainage cover (301) and the second drainage cover (302).