CN106869177A - Manhole cover assembly with lifting ring - Google Patents
Manhole cover assembly with lifting ring Download PDFInfo
- Publication number
- CN106869177A CN106869177A CN201510918737.6A CN201510918737A CN106869177A CN 106869177 A CN106869177 A CN 106869177A CN 201510918737 A CN201510918737 A CN 201510918737A CN 106869177 A CN106869177 A CN 106869177A
- Authority
- CN
- China
- Prior art keywords
- lifting ring
- well lid
- base
- manhole cover
- cover assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of Manhole cover assembly and its installation operation method.The Manhole cover assembly includes：For erectting the base being fixed in cement substrate, the base has the main body of general cylindrical shape, and at least one circle screw thread is formed with the inwall of the main body；Lifting ring, the lifting ring has the main body and the enlarged-diameter portion positioned at the main body one end of general cylindrical shape, and at least three circle screw threads are formed with the outer wall of the main body of the lifting ring, and the enlarged-diameter portion forms the exposed mouth of the lifting ring；And for covering the well lid of the exposed mouth, wherein, the main body of the lifting ring is arranged in the main body of the base, and to enable that the screw thread of the lifting ring is screwed togather with the screw thread of the base, by rotation, selectivity causes that the lifting ring is moved relative to the base along longitudinal axis.
Description
Technical field
The present invention relates generally to Manhole cover assembly used during Manhole cover assembly, especially road administration are built,
The well lid height of the wherein Manhole cover assembly can be adjusted and equipped with fast lockign apparatus on demand.
Background technology
Well lid is widely used in the construction of city road administration.It is right with the continuous extension of urban construction
The quality requirement more and more higher of road surfacing, with and come be requirement to well lid also increasingly
It is high.
In traditional road construction, by using for many years, road surface is likely to occur and collapses, and leads
Injustice between well lid and road surface is caused, the destruction of vehicle is easily caused, also influences road surface attractive in appearance.This
Outward, need road pavement to be renovated after use for many years, needed mostly during laying again
Existing well lid is abandoned completely and is remanufactured and is installed, wasted time and energy and relatively costly.
Additionally, traditional well lid is seldom equipped with suitable locking device, therefore in vehicle by well
It is easy to bob during lid and makes a noise.
The content of the invention
For problem above, the present invention proposes a kind of Manhole cover assembly of novelty, and its well lid can
According to needing easily and quickly to lift to a certain extent, so as to match the height on road surface.This
Outward, the Manhole cover assembly is further equipped with fast lockign apparatus, is easy to rapid construction to install and the later stage
Maintenance, and the noise that bounce is produced when can reduce well lid stress.
According to an aspect of the invention, there is provided a kind of Manhole cover assembly, it includes：
For erectting the base being fixed in cement substrate, the base has general cylindrical shape
Main body, is formed with least one circle screw thread on the inwall of the main body；
Lifting ring, the lifting ring has the main body of general cylindrical shape and positioned at the main body one end
Enlarged-diameter portion, be formed with the outer wall of the main body of the lifting ring at least three circle screw threads,
The enlarged-diameter portion forms the exposed mouth of the lifting ring；And
Well lid for covering the exposed mouth,
Wherein, the main body of the lifting ring is arranged in the main body of the base, described to cause
The screw thread of lifting ring can be screwed togather with the screw thread of the base, and by rotation, selectivity causes institute
Lifting ring is stated to be moved along longitudinal axis relative to the base.
Alternatively, the Manhole cover assembly also includes for can with the well lid by the lifting ring
The locking device being releasably locked together.
Alternatively, the locking device includes stop pin, steady pin and spring, the locking
Pin includes the body of rod and the head positioned at described body of rod one end, and the steady pin is located at the body of rod
The other end, the spring housing connects on the body of rod and with the head, the steady pin with
The stop pin is substantially vertical, and the well lid and the enlarged-diameter portion are formed with counter sink, institute
Stating counter sink has plum blossom hole, the well lid cover the exposed mouth when, the plum blossom hole that
This is aligned so that the steady pin can suffer restraints after passing through the plum blossom hole, and described
Spring is pressurized between the head and the well lid.
Alternatively, the projection for projecting radially outwardly is provided with the outward flange of the well lid, described
Form fluted in the side wall of enlarged-diameter portion, when the well lid covers the exposed mouth, institute
Projection is stated to be coupled in the groove.
Alternatively, the projection is diametrically relative to each other with its counter sink on the well lid, and
And the counter sink of the groove of the enlarged-diameter portion and the enlarged-diameter portion diametrically phase each other
It is right.
Alternatively, it is provided with the lifting ring for grasping so as to the power-assist structure of rotation.
Alternatively, one end of the main body of the base is formed with radially outer flange, the bottom
Seat is via the Flange erection in the cement substrate.
Alternatively, a circle flange is formed with the surface for covering exposed mouth of the well lid,
For in the main body for stretching into the lifting ring.
Alternatively, the screw thread is trapezoidal thread.
Alternatively, the scope that can be vertically moved between the lifting ring and the well lid be 0 to
125 millimeters.
Alternatively, the plum blossom hole is cross plum blossom hole, and it has a shorter character segment
And a character segment more long.
Alternatively, it is formed with lightening hole in the flange of the base.
Alternatively, the base, the lifting ring and the well lid are made up of ductile iron material.
Alternatively, barrier structure is formed with the enlarged-diameter portion of the lifting ring, it is located at
The radial outside of the counter sink of the enlarged-diameter portion, for for the resilient key is provided can one
Determine the space of degree movement.
According to another aspect of the present invention, a kind of installation behaviour of above-mentioned Manhole cover assembly is additionally provided
Make method, comprise the following steps：
Base is erected in cement substrate；
By lifting ring via being threaded into base so that the upper surface of lifting ring and ground level
Concordantly；
Road surfacing material around base and lifting ring is reinforced；And
The exposed mouth of lifting ring is covered with well lid.
Alternatively, when by lifting ring via being threaded into base, first lifting ring is screwed in
Minimum position in base so that the upper surface of lifting ring is close to ground level；Then, then press
Opposite direction rotation screw thread is finely tuned, by upper surface and ground level leveling.
Alternatively, methods described also includes：
When the exposed mouth of lifting ring is covered with well lid so that the plum blossom hole of well lid and lifting ring
Plum blossom hole is aligned；
Rotated to an angle so that resilient key after the stop pin of locking device is passed through into the plum blossom hole
Suffer restraints motionless, and spring is located between the head of stop pin and well lid with being pressurized.
Alternatively, when the exposed mouth of lifting ring is covered with well lid, first by the projection of well lid and liter
The groove for dropping the enlarged-diameter portion of ring aligns insertion.
Alternatively, when dismounting well lid is needed, first press head and simultaneously reversely rotate stop pin
Certain angle so that under spring force eject stop pin upwards from plum blossom hole.
Advantage of the present invention is exactly to adjust well seat height degree not only to have facilitated but also rapid.Even if after the several years,
When appearance pavement depression or entirety are laid again, after only road surface around lifting ring need to be loosened,
Rotating lifting ring can be transferred to newly-increased height by well lid.After covering well lid, using quick lock in
Device, by well lid quick locking and can reduce noise when using.
Brief description of the drawings
Can be more fully understood from detailed description described later and with reference to following accompanying drawing of the invention
Foregoing and other side.It is pointed out that the ratio of each accompanying drawing is for clarity of illustration
It is possible to different, but this can't influence the understanding of the present invention.In the accompanying drawings：
Fig. 1 diagrammatically illustrates assembling for Manhole cover assembly according to an embodiment of the invention
Sectional view afterwards；
Fig. 2 a diagrammatically illustrate the top view of the base of the Manhole cover assembly according to Fig. 1；
Fig. 2 b diagrammatically illustrate the sectional view of the base of the Manhole cover assembly according to Fig. 1；
Fig. 3 diagrammatically illustrates the sectional view of the lifting ring of the Manhole cover assembly according to Fig. 1；
Fig. 4 a diagrammatically illustrate the top view of the well lid of the Manhole cover assembly according to Fig. 1；
Fig. 4 b diagrammatically illustrate the section view taken along the cutting line A-A of the well lid according to Fig. 4
Figure；
Fig. 4 c diagrammatically illustrate the upward view of the well lid according to Fig. 4；And
Fig. 5 is schematically illustrated in the amplification view of the locking device filled in Manhole cover assembly.
Specific embodiment
In each accompanying drawing of the application, structure is identical or intimate feature is by identical accompanying drawing
Mark is represented.
Fig. 1 diagrammatically illustrates Manhole cover assembly according to an embodiment of the invention.As schemed
Show, the Manhole cover assembly generally comprises base 10, lifting ring 20 and well lid 30.The Manhole cover assembly
Base 10, lifting ring 20 and well lid 30 can for example be made up of ductile iron material.Preferably,
For quick lock in well lid, the Manhole cover assembly also includes locking device 40.
As shown in figures 2 a and 2b, base 10 include substantially cylindrical main body 11 and from
The flange (flange) 12 that one end of main body 11 extends radially outwardly.The Manhole cover assembly can be via
The flange 12 of base 10 is placed in cement substrate 5 (Fig. 1).In order to mitigate base 10
Weight, be formed with multiple lightening holes 13 to circle distribution in the flange 12 of base 10.Remove
Beyond the effect of loss of weight, this some holes can be also used for being fixed on base 10 in cement substrate 5.
For example, when road surfacing material is poured into a mould, the material can be entered into hole to be strengthened and cement
Fixation between pedestal 5.
Multiple ribs 15 are furthermore integrally formed in main body 11 and flange 12, for strengthening bottom
10 intensity of of seat itself.Ribs 15 is distributed around flange 12, such as one ribs
15 may be located between two holes 13.It is formed with the inner peripheral surface of the main body 11 of base 10
At least one circle internal thread 14, the screw thread of the lifting ring 20 for engaging subsequent description.
As shown in figure 3, lifting ring 20 also includes substantially cylindrical main body 21.The main body
21 diameter is less than the diameter of main body 11, so that the main body 21 of lifting ring 20 can be encased in bottom
In seat 10.An enlarged-diameter portion 22 is formed with one end of main body 21, the enlarged-diameter portion 22
In annular, vertically and extend radially outwardly.Formed in the madial wall of enlarged-diameter portion 22
There is a groove 23, and a counter sink 24 is formed with the bottom wall of enlarged-diameter portion 22.
Three or four circles or more circle external screw thread 25 is formed with the outer surface of main body 21.To
When lifting ring 20 is encased in base 10, the external screw thread 25 can be screwed into the interior spiral shell of base 10
On line 14.Internal thread 14 and external screw thread 25 are trapezoidal thread, and screw thread cone angle is smaller, so that
Ensure in lifting ring 20 when being seated on the internal thread 14 of base 10 via its external screw thread 25
Will not decline due to gravity.After lifting ring 20 is located in base 10, manually just
Opposite direction rotation and lifting ring 20, due to the effect between screw thread, can cause the phase of lifting ring 20
For base 10 axially/longitudinal direction be raised and lowered.Descending operation for convenience, alternatively
It is formed with the inwall of main body 21 and/or in the inner and/or outer side wall of enlarged-diameter portion 22 convex
Block or hole, are rotated for grasping.
After lifting ring 20 is encased in base 10, the enlarged-diameter portion 22 of lifting ring 20
In radial directions with the flush with outer surface or the body more than base 10 of the body 11 of base 10
11 outer surface, so may insure can be countersunk head when road surfacing material is inserted around
Region where hole 24 reserves enough installing spaces.Alternatively, in order to stop that surrounding is inserted
Road surfacing material, can be provided with shielding plate in the outside of the counter sink 24 of enlarged-diameter portion 22.
Bottom wall of the shielding plate for example from enlarged-diameter portion 22 as shown in Figure 3 extends downwards and is located at
The radial outside of counter sink 24.Meanwhile, the shielding plate can be arranged to be assembled when lifting ring 20
The height that the body 11 of good rear and base 10 will not come in contact and have influence on lifting ring 20 is adjusted.
As shown in Figs. 4a-c, well lid 30 includes main body 31 substantially in disk form.In main body
Towards being formed with decorative pattern 34 on upper surface after 31 installation.Direction after the installation of autonomous agent 31
Under surface be axially extended with a circle flange 35, and be internally formed in the circle flange 35
Reinforcement 35, for improving well lid 30 intensity of itself.
The external diameter of the circle flange 35 is less than the internal diameter of the main body 21 of lifting ring 20, and well lid
The external diameter of 30 main body 31 is more than the internal diameter of the main body 21 of lifting ring 20, so as to work as well lid 30
When being attached in lifting ring 20, the circle flange 35 plays certain guiding in extending into lifting ring 20
Positioning action.As illustrated, after well lid 30 is in place on lifting ring 20, under main body 31
Surface 31a is in contact with the upper surface of the bottom wall of enlarged-diameter portion 22, and well lid 30 upper table
Face is concordant with the upper surface of the enlarged-diameter portion 22 of lifting ring 20.
It is as shown in Figs. 4a-c, it is provided with what is extended radially out in the main body 31 of well lid 30
Projection 33, and a counter sink and projection 33 be arranged in main body 31 diametrically oppositely.Should
Counter sink is located at the radial outside of flange 35, and a part for the counter sink as shown is plum
Flower hole 32.The shape of the plum blossom hole is, for example, cross, and a character segment in the cross
It is more shorter than another character segment.
The projection 33 and counter sink of well lid 30 and the groove 23 of lifting ring 20 and the phase of counter sink 24
Correspondence.That is, after well lid 30 is installed on lifting ring 20, projection 33 can be stretched into
To in groove 23 and the counter sink of well lid 30 is aligned with the counter sink 24 of lifting ring 20 and communicated,
Constitute the lock hole for the insertion of locking device 40.Between projection 33 and groove 23 with closing
To the effect that well lid 30 and lifting ring 20 are aligned positioning, prevent well lid from being sent out when receiving horizontal external
It is raw to rotate.The counter sink of well lid 30 and the counter sink 24 of lifting ring 20 can load such as after aligning
Locking device 40 shown in Fig. 1.Therefore, the counter sink 24 of lifting ring 20 with well lid 30
That part of the directly contact of plum blossom hole 32 be also formed as shape identical plum blossom hole.
Fig. 5 diagrammatically illustrates one embodiment of locking device 40.The locking device 40 is wrapped
A stop pin is included, the stop pin has the body of rod 41 and head 42.The body of rod 41 can pass through upper
State plum blossom hole.Head 42 is connected with the near-end of the body of rod 41, and a bullet is provided with the distal end of the body of rod 41
Property pin 44, alternatively referred to as steady pin, its is longitudinally disposed into longitudinally perpendicular with the body of rod 41.Should
The length of resilient key 44 is set smaller than a character segment more long of cross plum blossom hole but more than ten
A shorter character segment of font plum blossom hole.That is, when the length direction and cross of resilient key
A character segment more long of shape plum blossom hole can pass through plum blossom hole to timing, and work as the length of resilient key
A character segment more long of degree direction and cross plum blossom hole do not align or with cross plum blossom hole compared with
A short character segment is to timing, it is impossible to suffered restraints through plum blossom hole.
In an illustrated embodiment, resilient key 44 is hollow shape.Those skilled in the art should
When clear, resilient key can also take other form, for example solid shape.Additionally, resilient key
Can be located in the body of rod 41, or be integrally formed on the outer surface of the body of rod 41.
It is also about being provided with a spring 43 on the body of rod 41.Lifting ring 20 is placed in well lid 30
Enlarged-diameter portion 22 bottom wall on it is in place after, the body of rod 41 is inserted into resilient key 44 and aligns
In plum blossom hole afterwards, spring 43 cannot be pressurized positioned at well lid 30 by plum blossom hole and spring 43
In counter sink, one end abuts head 42 and the other end abuts the end face adjacent with plum blossom hole 32.
Direction of rotation after the insertion plum blossom hole of resilient key 44, so that locking device 40 is constrained in into well
Between lid and lifting ring.So, when locking device 40 can prevent well lid 30 from receiving vertical external force
Bob, and reduce noise.
The construction installation method of Manhole cover assembly of the invention introduced below.
When Manhole cover assembly is installed, first base 10 is erect and is fixed in cement substrate 5.Then,
The direction of rotation that lifting ring 20 presses screw thread 25 is screwed on the screw thread 14 of base 10.Install
Initially, lifting ring 20 can be screwed into position minimum in base 10 so that lifting ring 20
Upper surface is close to ground level.Then, then by opposite direction rotation screw thread finely tune, by upper surface with
Ground level leveling.Lifting ring 20 is designed to base 10, between lifting ring 20 and base 10
Transportable scope, i.e. upper and lower adjustable scope are 0 to 125 millimeter.That is,
Calculation is in contact with the upper surface of base 10 from the lower surface of the bottom wall of enlarged-diameter portion 22 can be to
Most 125 millimeters of upper movement.Certainly, in the present invention, bigger distance is also feasible.
Using the Manhole cover assembly of this design, even if land subsidence or increasing road in order to need in the future
Face, need to only expect the road on ground around lifting ring to loosen, you can continue to adjust the height of lifting ring,
So that well head meets road surface requirement.
After the height of lifting ring 20 is regulated, around will be reinforced with road surfacing material, Ran Houke
To cover well lid 30 on lifting ring 20.
When well lid 30 is covered, the side of projection 33 of well lid 30 is directed at the recessed of lifting ring 20
Groove 23 so that well lid 30 can be put into the enlarged-diameter portion 22 of lifting ring 20.Then,
Stop pin is more long by one with cross plum blossom hole by direction, i.e. resilient key 44 with spring 43
Character segment is inserted in lock hole to normal incidence, and rotates such as 90 degree of direction so that resilient key
The lower end countersunk recesses of 44 counter sinks 22 for entering lifting ring 20, such spring 43 is total
It is to apply to axially retain power between the head 42 and well lid 30 of stop pin, well lid can be prevented
30 beat during use, reduce noise.
When needing to raise well lid 30, it is only necessary to be first pressed downward the head 42 of stop pin, so
It is rotated by 90 ° again afterwards so that resilient key 44 is aligned with a character segment more long of cross plum blossom hole,
Under the elastic force effect of spring 43, stop pin is drawn off by jack-up.Then hook hook
Enter in the steam vent of well lid, you can remove well lid.Above-mentioned in order to ground in the future sinks
Before height sunken or that lifting ring is adjusted to increase road surface, can adopt and take in this way
Lower well lid.When covering well lid 30 again, it is only necessary to repeat the above method.
While embodiments of the invention have been described above, but those skilled in the art should the present invention
It is not limited to the content of these specific descriptions.For example, the projection of well lid and counter sink and lifting
The groove and counter sink of ring not diametrically can reciprocally be set.Or can be arranged on
Multiple counter sinks are set on well lid and lifting ring, so as to match with multiple locking devices.Even
The groove in the projection and lifting ring on well lid can be omitted, only well lid is kept by locking device
Stationary positioned between lifting ring.In this case, it is also possible to alternatively omit as schemed
The side wall of the enlarged-diameter portion 22 described in 3.
It should be understood that the plum blossom hole employed in the present invention is not limited to cross, Ren Heke
To play the shape that resilient key can suffer restraints by being rotated to an angle after the insertion of direction
For plum blossom hole.
Using technical scheme, well lid can on demand be lifted relative to road surface, be met
The different requirements of road pavement laying, though road surfacing occur afterwards for many years pavement depression or
Entirety is needed to spread again, it is only necessary to adjust lifting ring and may be such that meeting road surface requires to new height,
It is convenient to safeguard in the future and accordingly reduce construction cost.Additionally, locking device of the invention can be fast
Speed is reduced and occurs the possibility of noise when using reliably by Manhole cover lock, improves road administration
The quality of road pavement.
Although describing only certain exemplary embodiments of this invention in detail here, they are just for the sake of solution
The purpose released and be given, and it is not considered that they are construed as limiting to the scope of the present invention.Do not taking off
On the premise of spirit and scope of the invention, various replacements, change and transformation can be contemplated out.
Claims (19)
1. a kind of Manhole cover assembly, it includes：
For erectting the base being fixed in cement substrate, the base has general cylindrical shape
Main body, is formed with least one circle screw thread on the inwall of the main body；
Lifting ring, the lifting ring has the main body of general cylindrical shape and positioned at the main body one end
Enlarged-diameter portion, be formed with the outer wall of the main body of the lifting ring at least three circle screw threads,
The enlarged-diameter portion forms the exposed mouth of the lifting ring；And
Well lid for covering the exposed mouth,
Wherein, the main body of the lifting ring is arranged in the main body of the base, described to cause
The screw thread of lifting ring can be screwed togather with the screw thread of the base, and by rotation, selectivity causes institute
Lifting ring is stated to be moved along longitudinal axis relative to the base.
2. Manhole cover assembly according to claim 1, it is characterised in that the Manhole cover assembly
Also include the locking dress for the lifting ring and the well lid can be releasably locked together
Put.
3. Manhole cover assembly according to claim 2, it is characterised in that the locking device
Including stop pin, steady pin and spring, the stop pin includes the body of rod and positioned at the bar
The head of body one end, the steady pin is located at the body of rod other end, and the spring housing is described
Connect on the body of rod and with the head, the steady pin is substantially vertical with the stop pin, described
Well lid and the enlarged-diameter portion are formed with counter sink, and the counter sink has plum blossom hole, in institute
When stating the well lid covering exposed mouth, the plum blossom hole is aligned each other so that the steady pin is worn
Can be suffered restraints after crossing the plum blossom hole, and the spring is in the head and the well lid
Between be pressurized.
4. Manhole cover assembly according to claim 3, it is characterised in that in the well lid
Outward flange is provided with the projection for projecting radially outwardly, and is formed with the side wall of the enlarged-diameter portion
Groove, when the well lid covers the exposed mouth, the projection is coupled in the groove.
5. Manhole cover assembly according to claim 4, it is characterised in that the projection is in institute
State on well lid with its counter sink diametrically toward each other, and the groove of the enlarged-diameter portion with
The counter sink of the enlarged-diameter portion is diametrically relative to each other.
6. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that in institute
Lifting ring is stated to be provided with for grasping so as to the power-assist structure of rotation.
7. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that described
One end of the main body of base is formed with radially outer flange, and the base is perpendicular via the flange
Stand in the cement substrate.
8. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that in institute
State and a circle flange is formed with the surface for covering exposed mouth of well lid, for stretching into the liter
In the main body of drop ring.
9. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that described
Screw thread is trapezoidal thread.
10. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that institute
The scope that stating can vertically move between lifting ring and the well lid is 0 to 125 millimeter.
11. according to any described Manhole cover assembly of claim 3 to 5, it is characterised in that institute
It is cross plum blossom hole to state plum blossom hole, and it has a shorter character segment and one more long one
Character segment.
12. Manhole cover assemblies according to claim 7, it is characterised in that in the base
Flange in be formed with lightening hole.
13. according to any described Manhole cover assembly of claim 1 to 5, it is characterised in that institute
Base, the lifting ring and the well lid is stated to be made up of ductile iron material.
14. according to any described Manhole cover assembly of claim 3 to 5, it is characterised in that
Barrier structure is formed with the enlarged-diameter portion of the lifting ring, it is located at the enlarged-diameter portion
Counter sink radial outside, for providing the sky that can be moved to a certain degree for the steady pin
Between.
A kind of 15. installation operation sides according to any described Manhole cover assembly of claim 1 to 14
Method, comprises the following steps：
Base is erected in cement substrate；
By lifting ring via being threaded into base so that the upper surface of lifting ring and ground level
Concordantly；
Road surfacing material around base and lifting ring is reinforced；And
The exposed mouth of lifting ring is covered with well lid.
16. methods according to claim 15, it is characterised in that by lifting ring via
When being threaded into base, lifting ring is first screwed into position minimum in base so that rise
The upper surface of ring drops close to ground level；Then, then by opposite direction rotation screw thread finely tune, will be upper
Surface and ground level leveling.
17. methods according to claim 16, it is characterised in that also include：
When the exposed mouth of lifting ring is covered with well lid so that the plum blossom hole of well lid and lifting ring
Plum blossom hole is aligned；
Rotated to an angle so that steady pin after the stop pin of locking device is passed through into the plum blossom hole
Suffer restraints motionless, and spring is located between the head of stop pin and well lid with being pressurized.
18. methods according to claim 17, it is characterised in that risen being covered with well lid
When dropping the exposed mouth of ring, first the projection of well lid is aligned with the groove of the enlarged-diameter portion of lifting ring
Insertion.
19. according to any described method of claim 16 to 18, it is characterised in that needing
When dismantling well lid, first press head and stop pin is reversely rotated into certain angle simultaneously so that
Stop pin is ejected upwards from plum blossom hole in the presence of spring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918737.6A CN106869177A (en) | 2015-12-11 | 2015-12-11 | Manhole cover assembly with lifting ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918737.6A CN106869177A (en) | 2015-12-11 | 2015-12-11 | Manhole cover assembly with lifting ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106869177A true CN106869177A (en) | 2017-06-20 |
Family
ID=59177819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510918737.6A Pending CN106869177A (en) | 2015-12-11 | 2015-12-11 | Manhole cover assembly with lifting ring |
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| Country | Link |
|---|---|
| CN (1) | CN106869177A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049435A (en) * | 2018-01-29 | 2018-05-18 | 李子恒 | A kind of well lid |
| CN108643238A (en) * | 2018-06-01 | 2018-10-12 | 宁波帝杨电子科技有限公司 | A kind of adjustable cover for manhole and opener based on road surface safety |
| CN110078004A (en) * | 2019-05-08 | 2019-08-02 | 常州工学院 | A kind of inspection shaft manhole cover lifting device and method for improving |
| CN110438872A (en) * | 2019-07-04 | 2019-11-12 | 武汉市汉阳市政建设集团有限公司 | A kind of switching device and the construction method using its progress well lid road surfacing |
| CN110552417A (en) * | 2019-09-16 | 2019-12-10 | 上海应用技术大学 | Drainage-assisting well lid assembly |
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Application publication date: 20170620 |