CN101086165B - Pressure releasing type box and manhole cover - Google Patents
Pressure releasing type box and manhole cover Download PDFInfo
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- CN101086165B CN101086165B CN2006101261593A CN200610126159A CN101086165B CN 101086165 B CN101086165 B CN 101086165B CN 2006101261593 A CN2006101261593 A CN 2006101261593A CN 200610126159 A CN200610126159 A CN 200610126159A CN 101086165 B CN101086165 B CN 101086165B
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- lid
- manhole
- hopper
- main body
- cover frame
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Abstract
The invention provides a pressure release type foxbat or lid of manhole, comprising a lid of shape of approximate disc and lid frame of shape of approximate cylinder. The said lid consists of main body of lid; guide member approximately vertically extending from the inside of the main body; and locking component for restricting the main body moving up and down. The said lid frame comprises socketfor holding the said lid; shell extending from the said socket to the inferior; and jut for clipping with the hook of the locking component of the lid below the socket at the inner circumference of the said shell. When loading the said lid, the said guiding component generates a preset clearance between the entirely or a part of the inner circumference of the said shell, and the said clipping surface of the hook is disposed to generate a preset distance apart from the periphery of the main body. Thus, the main body can move up and down between the said distance of the said socket and form peristome at the periphery of the said main body.
Description
Technical field
The present invention relates to the hopper that constitutes by lid and cover frame installed at the ground peristome that is embedded in drain tank buckets such as underground plastic sewage hopper, rainwater hopper or the lid of manhole, relate in particular to when excessive pressure puts on the inside of lid, though lid is formed for the peristome of relieving pressure from socket by the distance of upwards pushing regulation and at its peripheral part, does not break away from and can be received into the lid of the hopper of pressure releasing type of original position or manhole once more and possess the hopper or the manhole of described lid from socket.
Background technology
As everyone knows, in dwelling house ground or in the extraterrestrial drainage plant of dwelling house, use drain tank bucket in order to make person in charge's stream and arm passage confluent, its on the ground peristome the hopper that is made of lid and cover frame or the lid of manhole are installed, the purpose of this lid is to prevent people's landing or prevents that sandstone etc. is from the inflow of outside and from dispersing of the stench of sewage etc.
In addition, casual in order to prevent to carry come off or construct after mischief, steal etc., usually, these lids of use such as commons hopper are provided with as the spy and open flat 7-331686 communique or the spy opens flat 10-30243 communique, the spy opens disclosed locking mechanism in the flat 11-229479 communique.
But, the above-mentioned lid after locking, because its lid and cover frame are all closely fixed, so a large amount of rainwater at the heavy rain of concentrating etc. flow under the situation of drain tank buckets, the excessive pressure that can not release and in manhole, produce, consequently, there are the following problems: destroy drain tank bucket or drainage piping, or because of destroying the locking mechanism of lid, and make lid takeoff or in use lid come off from cover frame, thereby become dangerous.
On the other hand, in order to solve such problem, though propose on lid, to be provided with Pressure Relief Valve, but the complex structure of Pressure Relief Valve and price height, in addition, if then many times owing to the influence of sandstone or dust etc. causes that work is bad, present situation is in fact almost not popularize in outdoor long-term use.
In addition, open in the clear 64-31143 communique real, proposed the lid of a kind of hopper or manhole, it does not use above-mentioned Pressure Relief Valve, can under the state that the lid that has utilized the locking mechanism that covers is led lid be moved up and down.
But, owing to have both the complex structure of locking mechanism of the lid of described guide function, so in fact be difficult to be applied to resinous lid, in addition, because sandstone or dust etc. are invaded the part that lid is led easily, so under long-term situation about using, following problem is arranged: can not keep the normal and stable function that moving up and down of lid led.
Patent documentation 1: open clear 64-31143 communique in fact
Patent documentation 2: open flat 5-89538 communique in fact
Patent documentation 3: the spy opens flat 7-331686 communique
Patent documentation 4: the spy opens flat 10-30243 communique
Patent documentation 5: the spy opens flat 11-229479 communique
Summary of the invention
Therefore, the objective of the invention is to, the lid of a kind of resinous hopper or manhole is provided, it possesses the locking mechanism of lid, thus when excessive pressure puts on the inside of lid, though lid is upwards pushed and is formed for the peristome of relieving pressure at its peripheral part from socket, do not break away from and can be received into original position once more from socket.
In addition, the objective of the invention is to, the lid of a kind of resinous hopper or manhole is provided, its lid keeps the state of approximate horizontal on one side from cover frame, with big stroke move up and down on one side, therefore, the a large amount of draining of can quickly releasing of this lid, pressure releasing efficient is high.
And then, the objective of the invention is to, the lid of a kind of resinous hopper or manhole is provided, it is in order to prevent dispersing from the stench of sewage etc., usually keep sealing state, but when pressure puts on the inside of lid, between lid and cover frame, produce the frictional resistance that causes by containment member hardly, can be swimmingly from the cover frame lid of releasing.
In order to reach above-mentioned purpose, the prudent result who inquires into of present inventors is, finished the lid of hopper of the present invention or manhole, it is with the lid mounting during in cover frame, between the jut snap-latch surface of the hook snap-latch surface of locking component and cover frame, the gap is set, and then functionally separate the part take on the part of the function that locks lid and to take on the function that lid is led, the influence that causes because of the intrusion of sandstone etc. is few thus, and only the weight of definite lid just can be adjusted in the relieving pressure of the pressure that produces in the manhole simply.
Specifically, in first technical scheme, provide a kind of hopper of pressure releasing type or the lid of manhole, it comprises roughly discoid lid and cover frame roughly cylindraceous, and described lid comprises: the lid main body; The ways that generally perpendicularly extends from the inside of described main body; And being used to limit the locking component that moves up and down of described main body, described cover frame comprises: the socket that is used for accommodating described lid with loading and unloading; Extend to the housing section of below from described socket; And be arranged on the inner peripheral surface of described housing section described socket below and the jut that can close with the dogging of the locking component of described lid, wherein, when the lid mounting, described ways be configured to and all or part of of described housing section inner peripheral surface between produce predetermined gap, and the snap-latch surface of described hook is configured to leave from the snap-latch surface of described jut the distance of regulation, thus, described main body can move up and down between described distance and forms peristome at the peripheral part of described main body from described socket.
Consequently, according to first technical scheme, during locking, lid can not shed from cover frame freely owing to locking component, but when pressure puts on the inside of lid, upwards pushed from socket, engaged up to the hook of locking component and the jut of cover frame corresponding to this pressure lid, and, can be received into original position once more then through the peristome relieving pressure that the peripheral part at lid forms.
In addition, because the lid at the lid of hopper of the present invention or manhole is provided with ways, described ways is configured to when the lid mounting, and all or part of of the housing section inner peripheral surface of cover frame between produce predetermined gap and generally perpendicularly extend from the inside of lid main body, therefore, even when having produced under the situation of unequal pressure in the inside of lid, utilize ways, lid also can keep the state of approximate horizontal on one side from cover frame, move up and down on one side, thereby a kind of draining equal pressure of quickly releasing a large amount of the release high resinous hopper of efficient or the lid of manhole can be provided with big stroke.
And then, in the present invention, because the partial function ground that will take on the part of the function that lock lid and take on the function that lid is led separates, therefore can adopt the structure of following special use: the structure of simplifying ways, or between the housing section inner peripheral surface of ways and cover frame, suitable gap etc. being set, sandstones etc. are difficult to invade.Therefore, can provide a kind of influence that intrusion because of sandstone etc. is caused few, even also do not impair the hopper pressure releasing function, that reliability is high or the lid of manhole in outdoor application for a long time.
Also have, the ways that generally perpendicularly extends from the inside of lid main body, with the lid mounting during in cover frame, be have with the housing section inner peripheral surface almost parallel of cover frame leave and the member of relative part, for example, have drum, or plate shape, clavate shape, described drum has along the outer peripheral face of housing section inner peripheral surface, and described plate shape, clavate shape constitute the part of drum.
And then, because ways also has the function of the relieving pressure that is used to regulate lid, for example, be under the situation of continuous drum at ways, by a part notch or peristome are set, can be adjusted in the relieving pressure of the pressure that produces in hopper or the manhole in this barrel surface.In addition, be under the situation of the plate shape of segment or clavate shape at ways, by adjusting the configuration space of these members, can regulate relieving pressure.
In second technical scheme, locking component as the lid of the hopper of the described pressure releasing type of first technical scheme or manhole, use comprise head, with the foot of its binding, and the locking component of hook from described foot along horizontal expansion, separate with ways and rotate the locking component pilot hole that is installed on freely in the circumference setting of lid main body.
The locking component of Shi Yonging is that part has improved known locking component and the locking component that obtains in the present invention, its basic structure so long as following structure just there is no particular limitation, can utilize, promptly, locking component comprise head, with the foot of its binding, and hook from described foot along horizontal expansion, and be formed at the housing section inner peripheral surface of cover frame with the jut that described dogging closes.For example, preferred improvement and request for utilization people exploitation opens the locking component described in the flat 11-229479 communique as the spy.
In the present invention, the length setting of the foot of locking component is, with the lid mounting during in cover frame, the snap-latch surface of hook leaves the distance of regulation from the snap-latch surface at the jut of the housing section inner peripheral surface setting of cover frame.Therefore, become following structure: usually, be hooked under the lock-out state and also engage, but when lifting lid, described hook and jut engage, and can not shed lid from cover frame thus with described jut.
Therefore, owing to concentrate heavy rain etc. to make a large amount of rainwater flow into, thereby in hopper or manhole, produced under the situation of excessive pressure and so on, lid upwards is pressed to the jut engaging of the hook and the cover frame of locking component, and, do not hinder the lock function of lid through peristome relieving pressure in the formation of lid peripheral part.
So, the lid of hopper of the present invention or manhole, few because of the influence that the intrusion of sandstone etc. causes, only the weight of definite lid just can be adjusted in the relieving pressure of the pressure that produces in hopper or the manhole simply.
In the 3rd technical scheme, locking component as the lid of the hopper of the described pressure releasing type of first technical scheme or manhole, use comprises binding and the foot of extending and the ways of the hook from described foot along horizontal expansion below ways downwards, and forms with described ways.
Promptly, the 3rd technical scheme, not as described in second technical scheme, as member and the locking mechanism and the guiding mechanism of lid are set independently respectively, but the part that will take on the part of the function that locks lid and take on the function that lid is led distinguishes clearly, and they are incorporated in the member of having simplified.
Specifically, the ways of lid and locking component (below, sometimes abbreviate " guiding locking component " as), constitute by ways and locking component, described ways generally perpendicularly extends from the inside of lid main body, and described locking component comprises: binding and the foot of extending downwards, and the hook from described foot separately along horizontal expansion below ways.Therefore, ways and locking component are fixed in the lid main body, and therefore, himself is not with respect to lid main body rotation or movable.
Ways, guiding in the locking component be from the inside of lid directly, the part of generally perpendicularly extending, with the lid mounting during in cover frame, have with the housing section inner peripheral surface almost parallel of cover frame leave and relative part, for example, have drum, or plate shape, clavate shape, described drum has along the outer peripheral face of the housing section inner peripheral surface of cover frame, and described plate shape, clavate shape constitute the part of drum.
The foot of locking component is the part that binding is also extended downwards below ways in the guiding locking component, has plate shape, clavate shape usually.Therefore, be under the situation of continuous drum at ways, foot is not the complete cycle zone below ways but combine and extension downwards with following part zone.In addition, be under the situation of the plate shape of segment or clavate shape at ways, foot combines with below separately the ways all or part of and extends downwards continuously, and ways and foot are set at the length of same widths usually.
And then the length setting of foot is, with the lid mounting during in cover frame, the snap-latch surface of hook described later leaves the distance of regulation from the snap-latch surface at the jut of the housing section inner peripheral surface setting of cover frame.Therefore, become following structure: usually, be hooked under the lock-out state and also engage, but when lifting lid, described hook and jut engage, and can not shed lid from cover frame thus with described jut.
The guiding that is hooked in of locking component is disposed in the locking component from the inside of lid main body away from bottom, and from separately foot along horizontal expansion.
Therefore, in the guiding locking component, be installed on the following locking component of ways integratedly, leave certain interval with adjacent other locking components at least, and be installed on via ways on the inside of lid main body.In addition, by the hook of so direct configuration locking member, also can from locking component, omit described foot.
On the other hand, with respect to this, be arranged at can dispose on Zhou Fangxiang in the mode that leaves certain intervals on the below inner peripheral surface of socket of cover frame with the jut that dogging closes, make with lid when cover frame is provided with, the hook of locking component inserts to the below of jut through the gap of jut, or be under the situation of the flange shape continuous along inner peripheral surface at jut, be configured to notch is set at certain intervals in its part.
Therefore, when lid is positioned over cover frame, make the position of the hook of locking component corresponding to described hook, and through being arranged at gap between the jut of cover frame or notch to the configuration of the below of described jut, then, by making lid with respect to the ground rotation of cover frame approximate horizontal, hook be configured to jut under, thereby form lock-out state.In addition, at the state of unlocking, when cover frame unloads lower cover, as long as carry out above-mentioned opposite operation.
In the 4th technical scheme, as the ways of the lid of the hopper of the described pressure releasing type of first technical scheme or manhole, be provided with the notch or the peristome that on the thickness direction of this ways, connect.
Consequently, according to the 4th technical scheme, no matter at ways is under the situation of continuous drum, still be under the situation of the plate shape of segment or clavate shape at ways, be arranged on notch or the peristome that connects on the thickness direction of this ways by a part at this spigot surface, can both be easy and wide scope ground regulate the relieving pressure of lid.
In the 5th technical scheme, height setting as the ways of the lid of the hopper of the described pressure releasing type of first technical scheme or manhole is, the jut snap-latch surface during than the lid mounting from the hook snap-latch surface of locking component to the housing section inner peripheral surface of cover frame leave distance.
Consequently, according to the 5th technical scheme, prevent that the bottom of the ways of lid from crossing the top of socket and climbing up cover frame.Therefore, behind pressure releasing, lid is by the housing section inner peripheral surface of this ways and cover frame guiding, and lid does not break away from from cover frame thus, can be accommodated in original position reliably.
In the 6th technical scheme, as the socket of the lid of the hopper of the described pressure releasing type of first technical scheme or manhole, be provided with the horizontal part of the inside circumference that is used for mounting lid main body, in addition, on the described horizontal part or on the inside of the lid main body that contacts with described horizontal part containment member is being installed.
Consequently, according to the 6th technical scheme, the whole load of lid is supported by the horizontal part that the socket at cover frame is provided with, therefore, prevent that direct load from putting between the inner peripheral surface of the peripheral part end face of lid main body and socket and produce big frictional resistance, when pressure puts on the inside of lid etc., allow releasing smoothly of the lid that in socket, is provided with.
In addition, according to the 6th technical scheme, because containment member is just pushed from the top by the load of lid, therefore the situation with the inner peripheral surface of peripheral part end face that containment member is installed on the lid main body or cover frame is different, produces the frictional resistance that causes because of containment member between lid and cover frame hardly.Therefore, because the existence of containment member, the sealing of lid and cover frame further improves, and has strengthened the diffusion that prevents from the stench of sewage etc., and when pressure puts on the inside of lid, can discharge lid from cover frame swimmingly.
Also have, be applied to containment member of the present invention, as long as make by common elastomeric materials that uses as containment member such as synthetic rubber, just there is no particular limitation, can use, in addition, the section shape of containment member can suitably select to use different shapes such as quadrangle, triangle, circle or lip shape.
In addition, the fixing means of containment member can use bonding agent or two sides adhesive tape etc., but, then preferably the fixedly groove of usefulness of containment member is set, at this embedding fixing seal member in the inside of the horizontal part of socket or the lid main body that contact with described horizontal part if consider the easiness etc. of its replacing.
And then though horizontal part can be formed at all or part of of inner peripheral surface of socket, with the inside circumference that can mounting lid main body, in order to improve the sealing of lid and socket, preferred levels portion forms ring-type along the inner peripheral surface of socket.
In the 7th technical scheme, be equipped with as the hopper of any described pressure releasing type in first technical scheme to the, six technical schemes or the lid of manhole at common hopper or manhole.
Consequently, according to the 7th technical scheme, during locking, lid can not shed from cover frame freely owing to locking component, but when pressure puts on the inside of lid, lid is by forming the peristome excessive pressure of releasing corresponding to this pressure at the peripheral part of lid, thereby a kind of precaution and superior hopper or the manhole of safety can be provided.In addition, housing section by integrally formed lid and the tedge that extends from drain tank bucket or from manhole and sharing can also provide a kind of the number of components few and have the hopper or a manhole of the lid of cheap pressure releasing type.
(invention effect)
According to the present invention, owing to will take on the part of the function that locks lid, separate with the partial function ground of taking on the function that lid is led, between the jut snap-latch surface of the hook snap-latch surface of locking component and cover frame, be provided with play, so, during locking, lid can not shed from cover frame freely owing to locking component, but when pressure puts on the inside of lid, corresponding to this pressure from the lid socket by pushing upwards up to the jut engaging of the hook and the cover frame of locking component, and, can be received into original position once more then through the peristome relieving pressure that the peripheral part at lid forms.
In addition, according to the present invention, few because of the influence that intrusions such as sandstone cause, only the weight of definite lid just can be adjusted in the relieving pressure of the pressure that produces in hopper or the manhole simply.
In addition, according to other one side of the present invention, even when having produced under the situation of unequal pressure in the inside of lid, because the existence of ways, lid also can keep the state of approximate horizontal on one side from cover frame, move up and down on one side, therefore, can provide the high resinous hopper of a kind of pressure releasing efficient of a large amount of draining of quickly releasing or the lid of manhole with big stroke.
In addition, according to the present invention, the length setting of ways is than the distance from the hook snap-latch surface to the jut snap-latch surface, thus, prevents that lid from crossing the top of socket and climbing up cover frame.
In addition, according to other one side of the present invention, the taper angle of the peripheral part end face of lid main body is set at, horizontal plane with respect to described lid main body is less than or equal to 45 ° at least, thus, can reduce the pressure loss of the draining of discharging, thereby further improve the pressure releasing efficient of the lid of resinous hopper or manhole through being formed at the peripheral part end face of lid main body and the peristome between the socket inner peripheral surface.
In addition, according to other one side of the present invention, the horizontal part of the inside circumference by being provided for mounting lid main body at socket, prevent that direct load from putting between the inner peripheral surface of the peripheral part end face of lid main body and socket and produce big frictional resistance, when pressure puts on the inside of lid etc., allow the release smoothly of the lid that in socket, is provided with.
And then, according to other one side of the present invention, at the horizontal part of socket or in the inside of the lid main body that contacts with described horizontal part containment member is installed, and between lid and cover frame, produce the frictional resistance that causes because of containment member hardly, thus, the sealing of lid and cover frame further improves, and has strengthened the diffusion that prevents from the stench of sewage etc., and when pressure puts on the inside of lid, can discharge lid from cover frame swimmingly.
In addition, according to other one side of the present invention, by assembling the hopper of above-mentioned pressure releasing type or the lid of manhole at common hopper or manhole, when locking, lid can not shed from cover frame freely owing to locking component, but when pressure put on the inside of lid, lid was by forming the peristome excessive pressure of releasing corresponding to this pressure at the peripheral part of lid, thereby a kind of precaution and superior hopper or the manhole of safety can be provided.
Description of drawings
Fig. 1 is the sectional drawing under the situation that the lid of the lid of the hopper of embodiment 1 or manhole and cover frame are cut open with their centre section;
Fig. 2 is expression with the skeleton diagram of the position relation of the ways of the lid of lid mounting when the cover frame and lid;
Fig. 3 be with the lid mounting after cover frame, the vertical view of the hopper of the embodiment 1 of lock-out state or the lid of manhole;
Fig. 4 is hopper or the lid of manhole and the upward view of observing from the inboard as shown in Figure 3 that obtains;
Fig. 5 is the sectional drawing under the situation that the locking component of the lid of as shown in Figure 3 hopper or manhole is cut open with external application A-A section;
Fig. 6 is the skeleton diagram of the variation of expression ways;
Fig. 7 is the lid of the hopper of the embodiment 1 during from the visual observation pressure releasing or manhole and the stereogram that obtains;
Fig. 8 is the difference according to the cone angle of lid peripheral part end face, the skeleton diagram that the difference of the size of the peristome that forms is compared;
Fig. 9 is the upward view that obtains from the lid of the hopper of inboard observation embodiment 2 or manhole;
Figure 10 is the sectional drawing under the situation that as shown in Figure 9 lid is cut open with the B-B section;
Figure 11 is the vertical view of the cover frame of the hopper of embodiment 2 or manhole;
Figure 12 is the upward view that obtains from the cover frame of the hopper of inboard observation embodiment 2 or manhole;
Figure 13 is the sectional drawing under the situation that as shown in figure 11 cover frame is cut open with the C-C section;
Figure 14 be with the lid mounting after cover frame, the sectional drawing under the situation that the lid of the lid of the hopper of the embodiment 2 of lock-out state or manhole and cover frame are cut open with their centre section;
Figure 15 is the lid of the hopper of the embodiment 2 during from the visual observation pressure releasing or manhole and the stereogram that obtains.
Among the figure, the lid of 1a, 1b-hopper or manhole; The 2-lid; The 3-cover frame; The 4-locking component; The 5-ways; 6-flat sealed circle; The 7-socket; 8-skirt shape portion (housing section); The 9-peristome; The 10-locking component that leads; 20-locking component pilot hole; 23-lid main body.
The specific embodiment
Below, with reference to accompanying drawing, the hopper of the pressure releasing type of one embodiment of the present invention or the lid of manhole are described in detail.Have, the present invention is not limited to embodiment shown below again, in the scope that does not break away from technological thought of the present invention, can carry out various changes.
(embodiment 1)
Embodiment 1 is the hopper of the pressure releasing type of the present invention that is made of lid and cover frame or the lid 1a of manhole, described lid is equipped with two locking components at the circumference of lid main body, and then four ways are installed inside, described cover frame have can with the socket of described lid dismounting and housing section (below, be called " skirt shape portion ").
Fig. 1 represents the sectional drawing under the situation that their centre section is cut open with the lid 2 of the lid 1a of the hopper of embodiment 1 or manhole and cover frame 3, wherein, Fig. 1 a represents lid 2 is placed in cover frame 3 state before, Fig. 1 b represents lid 2 is placed in after the cover frame 3, but the state that locking is disengaged.
If describe with reference to Fig. 1, then the lid 1a of the hopper of embodiment 1 or manhole is made by vinyl chloride resin, and comprises lid 2 and possess and be used for the cover frame 3 that the socket 7 of lid 2 is accommodated in dismounting freely.Also have, the material of lid 1a also can be used synthetic resin such as polyethylene, polypropylene except vinyl chloride resin, or ERP, resin concrete, cast iron etc.
Lid main body 23 possesses the peripheral part end face 21 that has tapering in the mode towards the below reduced, via two locking component pilot holes, 20 rotations that connected the table the inside locking component 4 is installed freely at its circumference.In addition, be formed with four ways 5 that generally perpendicularly extend from the inside of lid main body 23 in the inside of lid main body 23, and then with the inside circumference of peripheral part end face 21 adjacency, be used for that socket 7 with cover frame 3 moves and the flat sealed circle 6 that seals is embedded in the slot part that is provided with inside.
On the other hand, cover frame 3 comprises socket 7 and skirt shape portion 8, described socket 7 is used for dismounting and accommodates lid 2 freely, described skirt shape portion 8 is used to be installed in the upper opening portion of the tedge (not shown) that extends from drain tank bucket in its underpart, is formed with the jut 31 that can engage with the hook 42 of locking component 4 on the inner peripheral surface 30 of cover frame 3.Also have, the skirt shape portion 8 by lid 3 is integrally formed and sharing with the tedge that extends from drain tank bucket or from manhole, and it is few and possess the hopper or the manhole of the lid of cheap pressure releasing type to form number of components.
Then, describe formation lid 2 and the parts of cover frame 3 and their function in detail with reference to accompanying drawing below.
Fig. 2 roughly represents lid 2 mountings when the cover frame 3, is installed on the position relation of the locking component 4 and the lid 3 of lid 2.
Constitute the locking component 4 of lid 2, have and the special roughly the same basic system of locking component of opening flat 11-229479 communique record, in present embodiment 1, use the locking component of having improved its foot and having obtained.
Promptly, can find out significantly from Fig. 2, the foot 41 that locking component 4 comprises head 40, link with head 40, and hook 42 from described foot along horizontal expansion, and comprise pair of pin 43, described pin 43 is given the elasticity that engages with the inside of lid main body 23 when having inserted the locking component pilot hole 20 of lid main body 23.
In addition, the length setting of the foot 41 of locking component 4 is, with lid 2 mountings during in cover frame 3, the snap-latch surface 32 of the jut 31 that the snap-latch surface 44 of hook 42 is provided with from the inner peripheral surface 30 at cover frame 3 leaves the distance of regulation: D2.Therefore, become following structure: usually, hook 42 does not engage with jut 31 under lock-out state yet, but when lifting lid 2, hook 42 and jut 31 engagings can not shed lid 2 from cover frame 3 thus.
Fig. 3 represents lid 2 mountings after cover frame 3, the vertical view of the hopper of the embodiment 1 of lock-out state or the lid 1a of manhole, Fig. 4 represent to observe from the inboard as shown in Figure 3 hopper or the upward view of the lid 1a of manhole.In addition, the sectional drawing of the hopper under the situation that Fig. 5 represents locking component 4 is cut open with external application A-A section as shown in Figure 3 or the lid 1a of manhole, wherein, Fig. 5 a represents that common lid 2 is by the airtight state of cover frame 3, Fig. 5 b represents that pressure arbitrarily puts on the inside of lid 2, and lid 2 is lifted and the state of relieving pressure from cover frame 3.
At this moment, usually shown in Fig. 5 a, leave the position what hook 42 and jut 31 did not engage, lid 2 mountings are in the socket 7 of cover frame 3.But, owing to concentrate heavy rain etc. to make a large amount of rainwater flow into, thereby in hopper or manhole, produced under the situation of excessive pressure and so on, shown in Fig. 5 b, lid 2 is raised to the position of jut 31 engagings of the hook 42 of locking component 4 and cover frame 3, then, through peristome 9 relieving pressures that form at its peripheral part, but end function and do not break away from (with reference to Fig. 7) from cover frame 3 by the card of locking component 4.
And then, because ways 5 also has the function of the relieving pressure of regulating lid 2, therefore be under the situation of the plate shape of segment or clavate shape for example at ways, by adjusting the configuration space of these members, the relieving pressure that can be adjusted in the pressure that produces in hopper or the manhole (in addition, is under the situation of continuous drum at ways with reference to Fig. 6 a),, by a part notch or peristome are set, can regulate relieving pressure (with reference to Fig. 6 c, b) in this barrel surface.
For example, under the situation of the lid 1a of the hopper of the embodiment shown in Fig. 6 a 1 or manhole, the total length of the width of notch can be set at the length of full Zhou Changdu about 2/3 (60～70%), and then also can realize further pressure releasing smoothly by total length being expanded to about 4/5 (about 80%).In addition, this also that the situation of peristome is set is identical with a part in barrel surface.Also have, though not shown, notch or peristome also can be used under the situation of the plate shape of segment or clavate shape even at ways be.
As Fig. 2 and shown in Figure 5, with lid 2 mountings during in cover frame 3, if the height D1 of ways 5 is set for, than between the jut snap-latch surface 32 of the hook snap-latch surface 44 of locking component 4 and cover frame 3 to leave distance D 2 long, then the bottom of ways 5 just can not cross socket 7 and climb up cover frame 3 above, therefore, behind pressure releasing, ways 5 is by the housing section inner peripheral surface 30 of cover frame 3 guiding, and lid 2 does not break away from and can be accommodated in original position reliably from cover frame 3 thus.
Above result shows, even when having produced under the situation of unequal pressure in the inside of lid 2, ways 5 also can keep the state of the approximate horizontal of lid 2 on one side from cover frame 3, with big stroke lid 2 is moved up and down on one side, therefore, can reach a large amount of high pressure releasing efficient such as draining of quickly releasing.In addition, after pressure releasing, lid 2 can be received into original position reliably once more.
In addition, the lid 1a of the hopper of embodiment 1 or manhole is owing to be provided with special-purpose locking component 4 and special-purpose ways 5, make the part of taking on function that locks lid 2 and the function that lid 2 is led separate independence fully, therefore can adopt following structure: with the designs simplification of ways 5 is plate shape, in addition, between ways 5 and cover frame inner peripheral surface 30, guarantee suitable gap, difficult intrusion such as sandstone.Therefore, the lid 1a of the hopper of embodiment 1 or manhole, the influence that the intrusion because of sandstone etc. is caused is few, even also do not impair the pressure releasing function in outdoor application for a long time.
If with reference to Fig. 1 a,, be provided with the horizontal part 71 of the inside circumference that is used for mounting lid main body 23 then at the socket 7 of the lid 1a of the hopper of embodiment 1 or manhole.
Also have, though horizontal part 71 can be formed at all or part of of inner peripheral surface of socket 7, with the inside circumference that can mounting lid main body 23, in order to improve the sealing of lid 2 and socket 7, shown in present embodiment 1, preferred levels portion 71 forms ring-type along the inner peripheral surface of socket 7.
Be embedded in the flat sealed circle 6 of the slot part that is provided with at the inside of lid main body 23 circumference, with lid 2 mountings in the socket 7 of lid 3 in the time, seal the hopper of embodiment 1 or the lid 1a of input port reliably thereby move with the horizontal part 71 of socket 7.
At this moment, flat sealed circle 6 as containment member, owing to just pushed from the top by the load of lid 2, therefore the situation with the inner peripheral surface 70 of peripheral part end face 21 that containment member is installed on lid main body 23 or cover frame 3 is different, produces the frictional resistance that causes because of flat sealed circle 6 hardly between lid 2 and cover frame 3.Therefore, because the existence of flat sealed circle 6, the sealing of lid 2 and cover frame 3 further improves, and has strengthened the diffusion that prevents from the stench of sewage etc., and when pressure puts on the inside of lid 2, can discharge lids 2 from cover frame 3 swimmingly.
Also have, flat sealed circle 6 is so long as the elastomeric material that is used as containment member usually by synthetic rubber etc. is made, and then there is no particular limitation, can use, in addition, its section shape can suitably select to use different shapes such as quadrangle, triangle, circle or lip shape.
In addition, the fixing means of flat sealed circle 6 can use bonding agent or two sides adhesive tape etc., but if consider the easiness etc. of its replacing, then as described in the present embodiment 1, preferably the fixedly groove of usefulness of containment member is set, embeds fixedly flat sealed circle 6 at this in the part that flat sealed circle 6 one sides are installed.
And then the situation of the lid 1a of the hopper of present embodiment 1 or manhole also can be set its taper angle: α (with reference to Fig. 8) so that the peripheral part end face 21 of lid main body 23 is less than or equal to 45 ° mode at least with respect to the horizontal plane of lid 2.
That is, under the situation of the lid of existing hopper or manhole,, then produce lid and break away from or climb up unfavorable condition such as cover frame from socket easily if the taper angle of the peripheral part end face of lid main body is too small.With respect to this, under the situation of the situation of the lid 1a of the hopper of present embodiment 1 or manhole, because the ways 5 of narration leads to moving up and down of lid 2 before utilizing always, so lid 2 does not break away from and does not climb up cover frame from cover frame 3.Therefore,, also can set the taper angle of peripheral part end face 21 freely, make when lid 2 is lifted, be formed at the peripheral part end face 21 of lid main body 23 and the peristome 9 between the socket inner peripheral surface 70 and become bigger even be less than or equal to 45 °.
Consequently, comparative example as shown in Figure 8 is such, under lid 2a, b have risen the situation of identical stroke, with regard to peripheral part end face 21a, the b and peristome 9a, b between socket inner peripheral surface 70a, the b that are formed at lid main body 23, compare with the lid 2a of the peripheral part end face 21a with big taper angle, the peristome of lid 2b of peripheral part end face 21b with little taper angle is bigger, therefore, by reducing the pressure loss of the draining of discharging, can further improve the efficient of releasing of the lid of hopper or manhole through peristome 9b.
In addition, if as lid 2b, reduce the taper angle of peripheral part end face 21b, then do not have following unfavorable condition: lid 2b is because of becoming and can not move from cover frame 3 between intrusion peripheral part end face 21b such as sandstone and the socket inner peripheral surface 70b.
So, the lid 1a of a kind of hopper or manhole can be provided in embodiment 1, it has the locking mechanism of lid 2, and the influence that causes because of intrusions such as sandstones is few thus, and the weight of only definite lid 2 just can be adjusted in the relieving pressure of the pressure that produces in hopper or the manhole simply.
(embodiment 2)
Therefore, be with the maximum difference of the lid 1a of the hopper of the pressure releasing type of embodiment 1 or manhole, do not have as embodiment 1 as member and the locking mechanism and the guiding mechanism of lid are set at lid 2 independently respectively, but the part that will take on the part of the function that locks lid 2 and take on the function that lid 2 is led distinguishes clearly, and they are incorporated into respectively among the member of having simplified.
Fig. 9 represents to observe from the inboard lid 2 of lid 1b of the hopper of embodiment 2 or manhole and the upward view that obtains, the sectional drawing under the situation that Figure 10 represents to cut open with B-B section as shown in Figure 9.In addition, Figure 11 represents the vertical view of cover frame 3, and Figure 12 represents the upward view of cover frame 3, and Figure 13 is the sectional drawing under the situation about cutting open with as shown in Figure 11 C-C section.
The lid 1b of the hopper of embodiment 2 or manhole is made by vinyl chloride resin, and comprises lid 2 and have and be used for the cover frame 3 that the socket of lid 2 is accommodated in dismounting freely.In addition, the material of lid 1b also can be used synthetic resin such as polyethylene, polypropylene except vinyl chloride resin, or ERP, resin concrete, cast iron etc.
If describe with reference to Fig. 9 and Figure 10, then lid main body 23 possesses the peripheral part end face 21 that has tapering in the mode towards the below reduced, is formed with four guiding locking components 10 below extending to from the inside at its inside circumference.In addition, in the inside of lid main body 23, be from the central part of lid main body 23 and dispose the rib 22 that is used to strengthen lid main body 23 and guiding locking component 10 radially.
And then, with the inside circumference of peripheral part end face 21 adjacency, move and the flat sealed circle 6 that is used to seal is embedded in the slot part that is provided with inside with the socket 7 of cover frame 3.
On the other hand, cover frame 3 comprises socket 7 and skirt shape portion 8, described socket 7 is extremely shown in Figure 13 as Figure 11, be used for dismounting and accommodate lid 2 freely, described skirt shape portion 8 is used to be installed in the upper opening portion of the tedge (not shown) that extends from drain tank bucket in its underpart, is formed with the jut 31 that can engage with the hook 42 of guiding locking component 10 on the inner peripheral surface 30 of cover frame 3.Also have, the skirt shape portion 8 by lid 3 is integrally formed and sharing with the tedge that extends from drain tank bucket or from manhole, and it is few and possess the hopper or the manhole of the lid of cheap pressure releasing type to form number of components.
As shown in figure 10, the guiding locking component 10 of lid comprises ways 5 and locking component 4, described ways 5 generally perpendicularly extends from the inside of lid main body 23, and described locking component 4 comprises foot 41 and the hook from described foot along horizontal expansion 42 that is linked to the following of ways 5 and extends downwards.Therefore, guiding locking component 10 is fixed in lid 2, and therefore, himself is not with respect to lid 2 rotations or movable.
In addition, because ways 5 also has the function of the relieving pressure of regulating lid 2, therefore be under the situation of the plate shape of segment or clavate shape for example at ways, by adjusting the configuration space of these members, can regulate relieving pressure, be under the situation of continuous drum at ways in addition, notch or peristome be set, can regulate relieving pressure by a part in this barrel surface.
Also have, the notch of ways 5 or the portion that releases, no matter at ways 5 is under the situation of continuous drum, still be under the situation of the plate shape of segment or clavate shape at ways 5, can both be provided with in the mode that on the thickness direction of this ways 5, connects in the part of this spigot surface, consequently, can be easy and wide scope ground regulate the relieving pressure of lid 2.
The foot 41 of locking component 4 is to be linked to below the ways 5 and the part of the plate shape that extends downwards in guiding locking component 10, and its section is set at has the shape roughly the same with the section of ways 5.In addition, the hook 42 of locking component 4 guiding be disposed in the locking component 10 from the inside of lid main body 23 away from lowest end, from separately foot 41 along horizontal expansion.Also have, foot 41 does not need necessarily to be linked to the entire profile below the ways 5, but from considerations such as the intensity of guiding locking component 10 and formabilities, preferably links continuously in the mode with roughly the same section shape.
The length setting of foot 41 is, with lid 2 mountings during in cover frame 3, the snap-latch surface 32 of the jut 31 that the snap-latch surface 44 of hook 42 is provided with from the housing section inner peripheral surface 30 at cover frame 3 leaves the distance of regulation: d2.Therefore, become following structure: usually, hook 42 does not engage with jut 31 under lock-out state yet, but when lifting lid 2, hook 42 and jut 31 engagings can not shed lid 2 from cover frame 3 thus.
In addition, guiding locking component 10 is installed on the inside of lid 2 in the mode that leaves certain interval with adjacent other guiding locking components.
On the other hand, with respect to this, the jut 31 that can engage that below the socket 7 of cover frame 3, is provided with hook 42, dispose on Zhou Fangxiang in the mode that leaves certain interval, make with lid 2 when cover frame 3 is provided with, each hook 42 of guiding locking component 10 inserts through the gap between juts 31 and to the below of jut 31.
Therefore, when lid 2 is arranged at cover frame 3, make the position of the hook 42 of guiding locking component 10 corresponding to described hook, and through the gap between the jut 31 that is arranged at cover frame 3 and to the configuration of the below of described jut, then, by making lid 2 with respect to the ground rotation of cover frame 3 approximate horizontal, hook 42 be configured to jut 31 under, thereby form lock-out state.In addition, at the state of unlocking, when cover frame 3 unloads lower cover 2, as long as carry out above-mentioned opposite operation.
Can find out clearly from Figure 13, jut 31 forms the fonts of falling L with the housing section inner peripheral surface 30 with respect to cover frame 3 mode by two lateral plates 33,34 that extend along vertical direction and link separately lateral plate and a top flat 35 of along continuous straight runs extension form.
In addition, a lateral plate 33 in two lateral plates is when making lid 2 rotations lock in cover frame 3, for the stopper as the hook 42 of lid 2 plays a role, and be endowed enough length, on the other hand, with respect to this, in order to pass in and out the hook 42 of lid 2 easily, when lifting lid 2, hook 42 does not break away from along horizontal from jut snap-latch surface 32, and other lateral plate 34 is set at the length roughly the same with the thickness of hook 42, and the length of lateral plate of ratio 33 weak points.In addition, top flat 35 formation at jut 31, also can be configured to certain interval notch is set in its part under the situation of continuous flange shape along inner peripheral surface 30.
Then, describe formation lid 2 and the parts of cover frame 3 and their function in detail with reference to accompanying drawing below.
Figure 14 represents lid 2 mountings after cover frame 3, sectional drawing under the situation that the lid 1b of the hopper of the embodiment 2 of lock-out state or manhole is cut open with its centre section, wherein, Figure 14 a represents that common lid 2 is by the airtight state of cover frame 3, Figure 14 b represents that pressure arbitrarily puts on the inside of lid 2, and lid 2 is lifted and the state of relieving pressure from cover frame 3.
Usually shown in Figure 14 a, leave the position what hook 42 and jut 31 did not engage, lid 2 mountings are in the socket 7 of cover frame 3.But, owing to concentrate heavy rain etc. to make a large amount of rainwater flow into, thereby in hopper or manhole, produced under the situation of excessive pressure and so on, shown in Figure 14 b, lid 2 is raised to the position of jut 31 engagings of guiding hook 42 of locking component 10 and cover frame 3, then, through peristome 9 relieving pressures that form at its peripheral part, but end function and do not break away from (with reference to Figure 15) from cover frame 3 by the card of guiding locking component 10.
In addition, shown in Figure 14 a, with lid 2 mountings during in cover frame 3, the height d1 of the ways 5 of locking component 10 is set at if will lead, longer than leaving between the jut snap-latch surface 32 of the hook snap-latch surface 44 of locking component 4 and cover frame 3 apart from d2, even then when the inside at lid 2 has produced unequal pressure, ways 5 also can keep the state of the approximate horizontal of lid 2 on one side from cover frame 3, with big stroke lid 2 is moved up and down on one side, therefore, can reach a large amount of high pressure releasing efficient such as draining of quickly releasing.In addition, after pressure releasing, lid 2 can be received into original position reliably once more.
Above result shows, the lid 1b of the hopper of embodiment 2 or manhole will be owing to will take on the locking component 4 of lock function of lid 2 and the ways 5 of taking on the guide function of lid functionally separates in simplified one guiding locking component 10, therefore can adopt following structure: with the designs simplification of ways 5 is plate shape, in addition, between the housing section inner peripheral surface 30 of ways 5 and cover frame, guarantee suitable gap, difficult intrusion such as sandstone.Therefore, the lid 1b of the hopper of embodiment 2 or manhole, the influence that the intrusion because of sandstone etc. is caused is few, even also do not impair the pressure releasing function in outdoor application for a long time.
If with reference to Figure 13,, be provided with the horizontal part 71 of the inside circumference that is used for mounting lid main body 23 then at the socket 7 of the lid 1b of the hopper of embodiment 2 or manhole.
Also have, though horizontal part 71 can be formed at all or part of of inner peripheral surface of socket 7, with can mounting in the inside of lid main body 23 circumference, but in order to improve the sealing of lid 2 and socket 7, shown in present embodiment 2, preferred levels portion 71 forms ring-type along the inner peripheral surface of socket 7.
Be embedded in the flat sealed circle 6 of the slot part that is provided with at the inside of lid main body 23 circumference, with lid 2 mountings in the socket 7 of lid 3 in the time, seal the hopper of embodiment 2 or the lid 1b of input port reliably thereby move with the horizontal part 71 of socket 7.
At this moment, flat sealed circle 6 as containment member, owing to just pushed from the top by the load of lid 2, therefore the situation with the inner peripheral surface 70 of peripheral part end face 21 that containment member is installed on lid main body 23 or cover frame 3 is different, produces the frictional resistance that causes because of flat sealed circle 6 hardly between lid 2 and cover frame 3.Therefore, because the existence of flat sealed circle 6, the sealing of lid 2 and cover frame 3 further improves, and has strengthened the diffusion that prevents from the stench of sewage etc., and when pressure puts on the inside of lid 2, can discharge lids 2 from cover frame 3 swimmingly.
Also have, flat sealed circle 6 is so long as the elastomeric material that is used as containment member usually by synthetic rubber etc. is made, and then there is no particular limitation, can use, in addition, its section shape can suitably select to use different shapes such as quadrangle, triangle, circle or lip shape.
In addition, the fixing of flat sealed circle 6 can use bonding agent or two sides adhesive tape etc., but if the easiness of its replacing of consideration etc., then shown in embodiment 2, preferably the part in the side that flat sealed circle 6 is installed is provided with the fixedly groove of usefulness of containment member, embeds fixedly flat sealed circle 6 at this.
And then, the lid 1b of the hopper of present embodiment 2 or manhole, with the lid 1a of the hopper of embodiment 1 or manhole similarly, can be so that the peripheral part end face 21 of lid main body 23 be less than or equal to 45 ° mode at least with respect to the horizontal plane of lid 2, set its taper angle: α (with reference to Fig. 8), can access the same effect of effect with explanation in embodiment 1.
Claims (7)
1. the lid of the hopper of a pressure releasing type or manhole is characterized in that,
Comprise roughly discoid lid and cover frame roughly cylindraceous,
Described lid comprises: the lid main body; The ways that generally perpendicularly extends from the inside of described main body; And be used to limit the locking component that moves up and down of described main body,
Described cover frame comprises: the socket that is used for accommodating described lid with loading and unloading; Extend to the housing section of below from described socket; And be arranged on the inner peripheral surface of described housing section described socket below and the jut that can close with the dogging of the locking component of described lid,
When the lid mounting, described ways be configured to and all or part of of described housing section inner peripheral surface between produce predetermined gap, and the snap-latch surface of described hook is configured to leave from the snap-latch surface of described jut the distance of regulation, thus, described main body moves up and down between described distance and forms peristome at the peripheral part of described main body from described socket.
2. the lid of the hopper of pressure releasing type according to claim 1 or manhole is characterized in that,
Described locking component comprise head, with the foot of its binding, and hook from described foot along horizontal expansion, separate with described ways and rotate the locking component pilot hole that is installed on freely in the circumference setting of described lid main body.
3. the lid of the hopper of pressure releasing type according to claim 1 or manhole is characterized in that,
Described locking component comprises foot and the hook from described foot along horizontal expansion that binding is also extended below described ways downwards, and forms with described ways.
4. the lid of the hopper of pressure releasing type according to claim 1 or manhole is characterized in that,
Described ways possesses notch or the peristome that connects on the thickness direction of described ways.
5. the lid of the hopper of pressure releasing type according to claim 1 or manhole is characterized in that,
The guide part height setting of described ways is than described distance.
6. the lid of the hopper of pressure releasing type according to claim 1 or manhole is characterized in that,
Be provided with the horizontal part of the inside circumference that is used for the described lid of mounting at described socket, on the described horizontal part or on the inside of the lid main body that contacts with described horizontal part the containment member of being made by synthetic rubber be installed.
7. hopper or manhole is characterized in that,
Possess as the hopper of any described pressure releasing type in the claim 1 to 6 or the lid of manhole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006156340A JP4895691B2 (en) | 2006-06-05 | 2006-06-05 | Pressure relief type mascot or manhole cover |
| JP2006156340 | 2006-06-05 | ||
| JP2006-156340 | 2006-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101086165A CN101086165A (en) | 2007-12-12 |
| CN101086165B true CN101086165B (en) | 2010-08-11 |
Family
ID=38854592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101261593A Expired - Fee Related CN101086165B (en) | 2006-06-05 | 2006-08-28 | Pressure releasing type box and manhole cover |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4895691B2 (en) |
| CN (1) | CN101086165B (en) |
| TW (1) | TWI383087B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087566A (en) * | 2010-10-21 | 2012-05-10 | Aron Kasei Co Ltd | Street inlet |
| CN102767228A (en) * | 2011-05-06 | 2012-11-07 | 徐刚 | High-compressive-stress dispersing type municipal inspection well protection cover |
| CN103195100A (en) * | 2013-04-23 | 2013-07-10 | 张逸霄 | Safety support of inspection well cover |
| JP6780980B2 (en) * | 2016-08-10 | 2020-11-04 | アロン化成株式会社 | Drainage lid |
| JP6817017B2 (en) * | 2016-10-13 | 2021-01-20 | エバタ株式会社 | lid |
| CN108643329A (en) * | 2018-07-09 | 2018-10-12 | 嘉兴亨泰金属制品有限公司 | A kind of door run-resistant odour-proof floor drain |
| CN112593577A (en) * | 2020-12-07 | 2021-04-02 | 安徽信息工程学院 | Deformable intelligent well lid |
| CN114197535B (en) * | 2021-11-29 | 2023-06-06 | 安徽省飞龙新型材料有限公司 | Composite well lid with double circular arc angles and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351215A (en) * | 2000-10-31 | 2002-05-29 | 黄俊杰 | Limitative cover and its seat of manhole |
| US6551015B1 (en) * | 2000-07-25 | 2003-04-22 | Department Of Water And Power City Of Los Angeles | Method of and system for venting out buildup of explosive gases in a manhole |
| CN2711252Y (en) * | 2004-07-15 | 2005-07-20 | 王仁基 | Top surface level and inlaid type multi-functional man-hole cover with rotating locking structure |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116450A (en) * | 1982-12-22 | 1984-07-05 | 日産自動車株式会社 | Guide with nozzle of air jet type loom |
| JPS59135945A (en) * | 1983-01-25 | 1984-08-04 | Matsushita Electric Ind Co Ltd | Digital pll method |
| JPH0663331B2 (en) * | 1985-11-29 | 1994-08-22 | 積水ハウス株式会社 | Prefabricated curved stairs |
| JPH044047Y2 (en) * | 1986-02-06 | 1992-02-06 | ||
| JPS6431143A (en) * | 1987-07-27 | 1989-02-01 | Canon Kk | Printing method for photographic film |
| JPH0589538U (en) * | 1992-05-15 | 1993-12-07 | 積水化学工業株式会社 | Cleaning port for drainage |
| JPH09302697A (en) * | 1996-05-10 | 1997-11-25 | Fuji Cast:Kk | Iron cover for underground casing, etc. |
| JP3247329B2 (en) * | 1997-12-04 | 2002-01-15 | 株式会社タケダ製作所 | Manhole frame |
| JP3295837B2 (en) * | 1998-02-13 | 2002-06-24 | アロン化成株式会社 | For public use |
| JP2000008397A (en) * | 1998-06-22 | 2000-01-11 | Yodo Casting:Kk | Manhole cover |
| JP4505174B2 (en) * | 2002-06-13 | 2010-07-21 | 日之出水道機器株式会社 | Cover for underground structure |
-
2006
- 2006-06-05 JP JP2006156340A patent/JP4895691B2/en active Active
- 2006-06-29 TW TW95123655A patent/TWI383087B/en not_active IP Right Cessation
- 2006-08-28 CN CN2006101261593A patent/CN101086165B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6551015B1 (en) * | 2000-07-25 | 2003-04-22 | Department Of Water And Power City Of Los Angeles | Method of and system for venting out buildup of explosive gases in a manhole |
| CN1351215A (en) * | 2000-10-31 | 2002-05-29 | 黄俊杰 | Limitative cover and its seat of manhole |
| CN2711252Y (en) * | 2004-07-15 | 2005-07-20 | 王仁基 | Top surface level and inlaid type multi-functional man-hole cover with rotating locking structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007321535A (en) | 2007-12-13 |
| CN101086165A (en) | 2007-12-12 |
| TW200745416A (en) | 2007-12-16 |
| TWI383087B (en) | 2013-01-21 |
| JP4895691B2 (en) | 2012-03-14 |
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