CN207553270U - A kind of Double layer manhole cover - Google Patents

Abstract

The utility model discloses a kind of Double layer manhole covers, including upper cover body and the lower cover being movably connected in upper cover body, the upper cover body is equipped with the first drainage gallery, the lower cover is equipped with and matched second drainage gallery of the first drainage gallery, it may be reversed in the upper cover body and be connected with the first capping, connector is connected in first capping, may be reversed on the lower cover and be connected with the second capping.The utility model passes through upper, drainage gallery is set respectively on lower cover, and the setting capping respectively in two drainage galleries, when the water in sewer pipe pours in down a chimney impact well lid, lower well lid moves up, first, two are sealed on the lower difference of extruding force effect of connector upwards, lower overturning, and then flow can pass sequentially through the second drainage gallery, first drainage gallery is flowed out to outside well lid, the impact force that well lid is subject to when reducing flow backwards, reduce the harm to pedestrian and vehicular traffic, in addition, connector can be with covering together in addition manufacture, it further reduced the manufacture difficulty of manhole cover body.

Description

A kind of Double layer manhole cover

Technical field

The utility model belongs to urban operating mechanism technical field, more particularly, to a kind of Double layer manhole cover.

Background technology

Current Sewage well cover is generally only provided with the osculum for draining, when excessive, the sewer pipe that encounters bleeder quantity When interior water pours in down a chimney, flow can generate well lid one larger impact force, and well lid can be rushed it under the action of impact force It rises, and then the pedestrian threatened and the safety of vehicular traffic, although also some well lid can play impact force when reduction is poured in down a chimney Effect, but this kind of manhole cover structure is all more complicated, manufacturing process is complicated, and not notable to the effect of impact force reduction.

Utility model content

The utility model is a kind of convenient for manufacture in order to overcome the deficiencies of the prior art and provide, the impact force being subject to when pouring in down a chimney Small Double layer manhole cover.

To achieve these goals, the utility model uses following technical scheme：A kind of Double layer manhole cover, including upper Cover and the lower cover being movably connected in upper cover body, the upper cover body are equipped with the first drainage gallery, are set on the lower cover Have with matched second drainage gallery of the first drainage gallery, may be reversed in the upper cover body and be connected with the first capping, described the One capping is equipped with connector, may be reversed on the lower cover and is connected with the second capping.When the flow in sewer pipe is fallen During filling, under be sealed under the action of hydraulic pressure and move up, the meeting in upper cover body at this time and the second capping are inconsistent, first, Two cappings are overturn up and down under the effect of the extruding force of connector respectively, and then flow can pass sequentially through the second, first sluicing The surface of well lid is flowed out to after channel, significantly reduces the impact force that well lid is subject to, it is therefore prevented that well lid is in the effect of impact force It is lower to be rushed, conducive to the safety of pedestrian and vehicular traffic is ensured, since connector can together be manufactured with the first capping, meeting well Under impact force that lid is subject to when having the advantages that pour in down a chimney is small, the manufacturing process difficulty of well lid further reduced.

Further, the connector is a L-shaped connecting rod, and one end of the connecting rod is fixed on first capping On；When lower cover moves up, connecting rod can be inserted into the second drainage gallery, and is pressed down against the second capping so that second Capping downwardly turns over, and the second drainage gallery is opened, in addition, the L-shaped due to connecting rod is set, further increases the second capping Flip angle, rapidly entered in the second drainage gallery conducive to flow.

Further, the upper cover body is equipped with the groove for accommodating the first capping, and the lower cover, which is equipped with, accommodates second The cavity of capping；Capping is in groove, it is therefore prevented that capping is compromised.

Further, the upper cover body is equipped with an at least intake tunnel, and the intake tunnel side wall is downwardly extending Connecting pole, the lower cover are equipped with the exhalant canal passed through for connecting pole, and the connecting pole is equipped with limiting section；Lower cover is lived It is dynamic to be set on connecting pole, and the limiting section for preventing lower cover from coming off is additionally provided on connecting pole, so realize lower cover with The flexible connection of upper cover body, lower cover can move up under hydraulic pressure active force along connecting pole.

Further, the lower cover is equipped with floating ball；When flow is poured in down a chimney, floating ball increases the floating of lower cover Power moves up conducive to lower cover.

In conclusion the utility model is by setting drainage gallery respectively on upper and lower cover body, and in two drainage galleries Setting capping respectively, when the water in sewer pipe pours in down a chimney impact well lid, lower well lid moves up, and first and second is sealed on connection The lower overturning up and down, and then flow can pass sequentially through the second drainage gallery, the first drainage gallery stream respectively of extruding force effect of part Go out to the surface of outside well lid, the impact force that well lid is subject to when reducing flow backwards reduces the harm to pedestrian and vehicular traffic, separately Outside, connector can further reduced the manufacture difficulty of well lid with covering together in addition manufacture.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the vertical view of the utility model.

Specific embodiment

In order to which those skilled in the art is made to be better understood from the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.

As shown in Figs. 1-2, a kind of Double layer manhole cover, including upper cover body 1 and the lower cover being movably connected in upper cover body 1 Body 2, the upper cover body 1 are equipped with the first drainage gallery 11, and the lower cover 2 is equipped with matched with the first drainage gallery 11 Second drainage gallery 21, second drainage gallery 21 are arranged on the underface of the first drainage gallery 11, can in the upper cover body 1 Overturning is connected with the first capping 13, and first capping 13 is equipped with connector 12, specifically, first capping 13 is a modeling Flitch and the upper surface that upper cover body is connected to by torque spring, during normal state, plastic plate meeting under the action of torque spring First drainage gallery 11 is covered, the connector 12 is a L-shaped connecting rod, and the top of connecting rod is connected to the first capping On 13 bottom surface, connector 12 can be integrally formed with the first capping 13 and be made, and further reduce the manufacturing process difficulty of well lid, institute It states to may be reversed on lower cover 2 and is connected with the second capping 22, likewise, first capping 22 is a plastic plate and passes through torsion bullet Spring is connected to the upper surface of upper cover body, and during normal state, plastic plate can be to the second drainage gallery 21 under the action of torque spring It is covered.

The damage being subject to is covered during use for two pieces, be equipped in the upper cover body 1 and accommodate the first capping to reduce 13 groove 14, the lower cover 2 is equipped with the cavity 23 for accommodating the second capping 22, and during normal state, capping is at groove It is interior, and then pedestrian and vehicular traffic is prevented to damage the first capping 13

Further, the upper cover body 1 is equipped with 8 intake tunnels 15, and the intake tunnel 15 is circumferentially spaced uniformly It is distributed in the edge of upper cover body 1, the cylindric connecting pole 16 that 15 side wall of intake tunnel is downwardly extending, the lower cover 2 are equipped with the exhalant canal 24 passed through for connecting pole 16, and the connecting pole 16 is equipped with limiting section 17, the specific limiting section 17 boss outwardly extended to form for the connecting pole 16, the lower cover 2 are movably set on connecting pole 16, and can It is moved up and down between 1 lower surface of boss and upper cover body.

Preferably, the lower cover 2 is equipped with floating ball 25, and floating ball is made of foam, and when flow is poured in down a chimney, floating ball increases The buoyancy that lower cover is subject to is added, conducive to moving up for lower cover.

Specifically, in normal state, the first capping and the second capping cover the first drainage gallery and second and let out respectively Aquaporin, well lid carry out draining by water-in and water-out channel, and when the flow in sewer pipe is poured in down a chimney, lower well lid is in water It is moved up under the action of pressure, the bottom end of L-shaped connecting rod is inserted into the second drainage gallery and is mutually supported with the second capping upper surface It touches, with constantly moving up for lower cover, first and second capping is overturn up and down under the effect of the extruding force of connecting rod respectively, and then Flow can pass sequentially through the surface of outflow upper cover body after the second, first drainage gallery, significantly reduce the impact force that well lid is subject to, And when the water level decreasing in sewer pipe, lower cover restores under the effect of gravity to original state, and first and second is sealed on torsion First and second drainage gallery is covered respectively again under the action of power spring.

Obviously, described embodiment is only the part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained without making creative work Every other embodiment should all belong to the range of the utility model protection.

Claims (4)

1. a kind of Double layer manhole cover, it is characterised in that：Including upper cover body (1) and under being movably connected in upper cover body (1) Cover (2), the upper cover body (1) are equipped with the first drainage gallery (11), and the lower cover (2) is equipped with and the first drainage gallery (11) matched second drainage gallery (21) may be reversed on the upper cover body (1) and be connected with the first capping (13), and described first Capping (13) is connected to the upper surface of the upper cover body (1) by torque spring, and first capping (13) is equipped with connector (12), the connector (12) can be integrally formed with the described first capping (13) and be made, and the connector (12) connects for a L-shaped Bar, one end of the connecting rod are fixed in first capping (13)；It may be reversed on the lower cover (2) and be connected with the second envelope It covers (22).

2. Double layer manhole cover according to claim 1, it is characterised in that：The upper cover body (1), which is equipped with, accommodates the The groove (14) of one capping (13), the lower cover (2) are equipped with the cavity (23) for accommodating the second capping (22).

3. Double layer manhole cover according to claim 1, it is characterised in that：The upper cover body (1) is equipped at least one Intake tunnel (15), intake tunnel (15) side wall are downwardly extending connecting pole (16), and the lower cover (2), which is equipped with, to supply The exhalant canal (24) that connecting pole (16) passes through, the connecting pole (16) are equipped with limiting section (17).

4. Double layer manhole cover according to claim 1, it is characterised in that：The lower cover (2) is equipped with floating ball (25)。