CN209538355U - A kind of drainage manhole cover - Google Patents

Abstract

The utility model discloses a kind of drainage manhole cover, including lid, holding tank is equipped in the middle part of lid, holding tank lower end is equipped with the adapting table of annular；Floating head is placed on adapting table, floating head density is less than water；Floating head internal layer is plastic foam, and outer layer is cement；Floating head top forms multiple first pilot holes, forms the second pilot hole on the floating head of the first pilot hole lower end；Drainage manhole cover further includes the bindiny mechanism for connecting floating head and adapting table, and bindiny mechanism includes guide rod, and guide rod lower end is connect with adapting table, and guide rod upper end connects limited cap.Filter screen is covered on adapting table.The floating head that can float in water is set on lid, and ponding can flow into sewer between floating head and lid, play the role of self-draining, do not need to step on ponding and go to open well lid, pedestrian will not fall into sewer, prevent security risk.Filter screen can filter biggish particle, so that sewer is not easy to plug.

Description

A kind of drainage manhole cover

Technical field

The utility model relates to well lid fields, and being specifically related to one kind can be with self-draining well lid.

Background technique

It, cannot handle in time if the well lid on existing road surface is flooded not, smaller due to being unable to Auto-drainage or drainage hole The water on road surface, which exhausts, will have security risk, and then people can step on ponding and well lid is gone to open, and accelerate the row of surface gathered water It puts, but after well lid is opened, since ponding has blocked sight, people are not easy to observe well head, are easy for falling into well, thus In the presence of more serious security risk.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model: providing one kind can not need to open well with Auto-drainage Well lid bring security risk is opened in the drainage manhole cover of lid, removal.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of drainage manhole cover includes lid, The holding tank through lid is equipped in the middle part of the lid, the holding tank lower end is equipped with adapting table connect with lid, annular； The floating head of 1-4cm smaller than holding tank diameter is placed on the adapting table, the floating head density is less than water；The floating head internal layer is Density is less than the material of water, and outer layer is cast iron or spheroidal graphite cast-iron or bronze or cement；The floating head top is close to outside, circumferential direction etc. Spacing forms multiple first pilot holes, and diameter is formed on the floating head of first pilot hole lower end less than the first pilot hole Second pilot hole, the first, second pilot hole run through floating head jointly；The drainage manhole cover further includes having connection floating head and adapting table Bindiny mechanism, the bindiny mechanism includes the guide rod in the first, second pilot hole, the guide rod lower end with hold Consecutive connection, the guide rod upper end are connected with diameter greater than the second guiding bore dia but less than the limit of the first guiding bore dia Position cap.

Above-mentioned setting the utility model has the advantages that when lid drowns, floating head is floated up along guide rod, such floating head with Gap between adapting table becomes larger, and allows ponding by the gap and above-mentioned gap between floating head and holding tank, finally Into sewer, self-draining effect is thus reached.So that be not easy ponding excessive on road surface, reduce security risk, draining When do not need to open well lid yet, thus will not be easy to fall into because of invisible well head as traditional opening well lid Sewer, therefore the utility model also eliminates the security risk for falling into sewer.

It advanced optimizes ground: being covered with filter screen on the adapting table, filter screen upper end is equipped with the annular of pressing filter screen Pressing plate.

Above-mentioned setting the utility model has the advantages that setting filter screen, prevent excessive particle and enter sewer, so that sewer is not easy Blocking.

Advanced optimize ground: the bindiny mechanism further includes having connect with guide rod lower end, lateral wall to form outer spiral shell The screw rod of line, the screw diameter are less than guide rod；The pressing plate and filter screen are separately formed the through hole that screw rod passes through, institute The diameter for stating through hole is less than guiding shank diameter；The adapting table forms the internal thread hole connecting with screw flight；The limit Position cap upper end forms a word groove or cross recess.

Above-mentioned setting the utility model has the advantages that bindiny mechanism is threadedly coupled the peace so that it is convenient to floating head with adapting table by screw rod Dress and replacement, and be oriented to shank diameter and be greater than screw rod, such screw rod is screwed into internal thread hole, so that guide rod lower end pressed against pressing plate, Pressing plate and filter screen are also secured on adapting table in this way, after twisting off bindiny mechanism, and filter screen can be replaced.So connection Mechanism has not only acted as the guiding and position-limiting action to floating head, also plays fixed function to pressing plate and filter screen, and make Floating head, pressing plate and filter screen can be replaced, and facilitate maintenance, reduce maintenance cost.

Advanced optimize ground: the filter screen end portion is Nian Jie with adapting table.

Above-mentioned setting the utility model has the advantages that for the first time installation filter screen or replacement filter screen when, filter screen does not have for some time There is connected mechanism to be fixed on adapting table, in this way the gravity due to filter screen itself, filter screen is easy to fall into sewer, such as Fruit filter mesh portions it is Nian Jie with adapting table after, filter screen is not easy to fall into sewer, and only part bonding, and filter screen is easy from holding It tears and on consecutive.

Advanced optimize ground: the material of the floating head internal layer is timber or plastic foam.

Above-mentioned setting the utility model has the advantages that timber and plastic foam are the small material of common density ratio water, and it is cheap, Save the cost.

The utility model mainly has the beneficial effect that following aspect compared with prior art: setting can be in water on lid The floating head floated, ponding can flow into sewer between floating head and lid, play the role of self-draining, not need It steps on ponding to go to open well lid, pedestrian will not fall into sewer, prevent security risk.And it is equipped with filter screen, it can filter Biggish particle, so that sewer is not easy to plug.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of the utility model；

Fig. 2 is the perspective view that the utility model removes floating head；

Fig. 3 is the structural schematic diagram of the utility model floating head；

Fig. 4 is the cross-sectional view of the utility model floating head；

Fig. 5 is the structural schematic diagram of the utility model bindiny mechanism；

Fig. 6 is the cross-sectional view that the utility model floating head floats draining.

Appended drawing reference: 1, lid；11, holding tank；12, adapting table；2, floating head；21, the first pilot hole；22, the second guiding Hole；3, bindiny mechanism；31, guide rod；32, screw rod；33, limited cap；331, a word groove；4, filter screen；5, pressing plate.

Specific embodiment

Below in conjunction with attached drawing 1 to Fig. 6, specific embodiment of the present utility model is described in further detail, so that this is practical New technique scheme is more readily understood and grasps.

The present embodiment is a kind of drainage manhole cover, includes lid 1, the holding tank 11 through lid 1 is equipped in the middle part of lid 1, 11 lower end of holding tank is equipped with adapting table 12 connect with lid 1, annular.It is placed on adapting table 12 smaller than 11 diameter of holding tank The floating head 2 of 1-4cm, such water could pass through floating head 2 and holding tank 11.2 density of floating head is necessarily less than water, and floating head 2 could be in product It is floated in water.2 internal layer of floating head is the plastic foam that density is less than water, and plastic foam is at low cost, outer layer cement.Cement uses 32.5 Ordinary portland cement, density 3 are .0 ~ 3.15g/cm3, and calculating value for convenience herein is 3.2 g/cm3.Plastic foam Use density for the low ratio foamed foamed plastics of 0.5g/cm3.In order to make the density of entire floating head 2 be less than water (1 g/cm of density 3), it is greater than 11:16 by calculating the mass ratio of plastic foam and cement, the density of such floating head 2 is just smaller than the density of water, floats Lid 2 can float in water.2 top of floating head close to outside, it is circumferential equidistantly form multiple first pilot holes 21, first Second pilot hole 22 of the diameter less than the first pilot hole 21, the first, second pilot hole are formed on the floating head 2 of 21 lower end of pilot hole 22 run through floating head 2 jointly.Drainage manhole cover further includes the bindiny mechanism 3 for having connection floating head 2 and adapting table 12, and bindiny mechanism 3 includes There is the guide rod 31 in the first, second pilot hole 22,31 lower end of guide rod is connect with adapting table 12, and 31 upper end of guide rod is solid There is diameter greater than 22 diameter of the second pilot hole but less than the limited cap 33 of 21 diameter of the first pilot hole, limited cap makes floating head surely Without departing from bindiny mechanism.

When lid 1 drowns, floating head 2 is floated up along guide rod 31, between such floating head 2 and adapting table 12 Gap becomes larger, and allows ponding by gap and above-mentioned gap between floating head 2 and holding tank 11, eventually enters into and be lauched Road, has thus reached self-draining effect, and ponding flows through route as shown in the M in Fig. 6.The utility model makes road surface not Easy ponding is excessive, reduces security risk, and draining when does not need to open well lid yet, thus will not be as traditional opening well lid Like that, it is easy to fall into sewer because of invisible well head, therefore the utility model also eliminates the security risk for falling into sewer.

It advanced optimizes ground: being covered with filter screen 4 on adapting table 12,4 upper end of filter screen is equipped with the annular of pressing filter screen 4 Pressing plate 5.Filter screen 4 is set, prevents excessive particle and enters sewer, so that sewer is not easy to plug.

Advanced optimize ground: bindiny mechanism 3 further includes having be fixedly connected with 31 lower end of guide rod, lateral wall to form outside The screw rod 32 of screw thread, 32 diameter of screw rod are less than guide rod 31.What pressing plate 5 and filter screen 4 were separately formed that screw rod 32 passes through runs through The diameter in hole, through hole is less than 31 diameter of guide rod.Adapting table 12 forms the internal thread hole being threadedly coupled with screw rod 32.Limit 33 upper end of cap forms a word groove 331, facilitates and turns bindiny mechanism 3 with straight screwdriver.Bindiny mechanism 3 by screw rod 32 with Adapting table 12 is threadedly coupled installation and replacement so that it is convenient to floating head 2；Guide rod 31 diameter is greater than screw rod 32, and through hole Diameter is less than 31 diameter of guide rod, and such screw rod 32 is screwed into internal thread hole, so that 31 lower end of guide rod pressed against pressing plate 5, in this way Pressing plate 5 and filter screen 4 are also secured on adapting table 12, after twisting off bindiny mechanism 3, and filter screen 4 can be replaced.So connect Connection mechanism 3 has not only acted as the guiding and position-limiting action to floating head 2, also plays fixed function to pressing plate 5 and filter screen 4, and And floating head 2, pressing plate 5 and filter screen 4 can be replaced, maintenance is facilitated, maintenance cost is reduced.

Advanced optimize ground: 4 end portion of filter screen is Nian Jie with adapting table 12.Because in installation filter screen 4 for the first time or more When changing filter screen 4, filter screen 4 is fixed on adapting table 12 without connected mechanism 3 for some time, in this way due to filter screen 4 The gravity of itself, filter screen 4 are easy to fall into sewer, if filter screen 4 is not after 4 part of filter screen is Nian Jie with adapting table 12 Sewer is easily fallen into, and only part is bonded, filter screen 4, which is easy to tear from adapting table 12, to be come.

Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection Within the scope of.

Claims (5)

1. a kind of drainage manhole cover includes lid, it is characterised in that: be equipped with the holding tank through lid, institute in the middle part of the lid It states holding tank lower end and is equipped with adapting table connect with lid, annular；It is placed on the adapting table 1- smaller than holding tank diameter The floating head of 4cm, the floating head density are less than water；The floating head internal layer is the material that density is less than water, and outer layer is cast iron or spheroidal graphite Cast iron or bronze or cement；The floating head top close to outside, it is circumferential equidistantly form multiple first pilot holes, described first Second pilot hole of the diameter less than the first pilot hole is formed on the floating head of pilot hole lower end, the first, second pilot hole passes through jointly Wear floating head；The drainage manhole cover further includes the bindiny mechanism for having connection floating head and adapting table, and the bindiny mechanism includes place Guide rod in the first, second pilot hole, the guide rod lower end are connect with adapting table, and the guide rod upper end is connected with directly Diameter is greater than the second guiding bore dia but less than the limited cap of the first guiding bore dia.

2. a kind of drainage manhole cover according to claim 1, it is characterised in that: be covered with filter screen, mistake on the adapting table Strainer upper end is equipped with the annular pressing plate of pressing filter screen.

3. a kind of drainage manhole cover according to claim 2, it is characterised in that: the bindiny mechanism further includes having and guide rod Lower end connects, lateral wall forms externally threaded screw rod, and the screw diameter is less than guide rod；The pressing plate and filter screen point The through hole that screw rod passes through is not formed, and the diameter of the through hole is less than guiding shank diameter；The adapting table forms and spiral shell The internal thread hole that bar is threadedly coupled；The limited cap upper end forms a word groove or cross recess.

4. a kind of drainage manhole cover according to claim 3, it is characterised in that: the filter screen end portion and adapting table are viscous It connects.

5. a kind of drainage manhole cover according to claim 1, it is characterised in that: the material of the floating head internal layer is timber or modeling Strand foam.