CN106672828A - Automatic lifting device used for disassembling inspection well covers - Google Patents
Automatic lifting device used for disassembling inspection well covers Download PDFInfo
- Publication number
- CN106672828A CN106672828A CN201611118479.4A CN201611118479A CN106672828A CN 106672828 A CN106672828 A CN 106672828A CN 201611118479 A CN201611118479 A CN 201611118479A CN 106672828 A CN106672828 A CN 106672828A
- Authority
- CN
- China
- Prior art keywords
- guide pipe
- lifting
- inspection well
- well cover
- hoisting device
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C25/00—Cranes not provided for in groups B66C17/00 - B66C23/00
Abstract
The invention discloses an automatic lifting device used for disassembling inspection well covers. The automatic lifting device comprises a lifting vehicle body, a power mechanism and a lifting mechanism are installed on the lifting vehicle body, and the power mechanism and the lifting mechanism are connected though a power conveyor belt. The lifting mechanism comprises a fixing component, a transmission component and a lifting component, the transmission component is installed on the fixing component, and the fixing component is connected with the power conveyor belt. The power mechanism utilizes the power conveyor belt to transmit power to the lifting mechanism, and the power is transmitted to the lifting component through the transmission component to control rising and falling of the lifting component. According to the automatic lifting device used for disassembling the inspection well covers, automatic lifting of the inspection well covers is achieved through the lifting component, so that manpower and material resources are saved, and construction efficiency is improved.
Description
Technical field
The invention belongs to civil engineering inspection shaft construction field, is related to a kind of automatic hoisting device for dismantling inspection well cover.
Background technology
Inspection shaft is used in the turning of drainage pipeline, branch and falls etc., in order to check, the well of dredging, scientific name
Inspection shaft.In the same manner, the telecommunication cable inspection shaft of underground is embedded in, power cable inspection shaft is also inspection shaft.Inspection shaft i.e. underground
The meaning of room.A lot of underground pipings, such as sewer, underground gas pipeline, water supply pipe, power pipe are had in urban construction
Road, communication conduit and national defence pipeline etc., these pipelines will have an outlet for leading to ground every a segment distance, by pipeline to ground
This section in face is referred to as inspection shaft, and catch pit port is generally concordant with ground, it is therefore desirable to a lid, for the lid of lid inspection shaft, cries
Inspection well cover.Inspection well cover is generally made with materials such as reinforced concrete, metal, reinforced plastics, and shape is based on circular and square.In basement
On well lid, the purposes information of down-hole pipe is typically indicated.And for inspection well cover, general or armored concrete or metal material
Make, such advantage is that the well lid intensity height that makes, good endurance, the suitability are good.But its shortcoming is exactly, from great, to carry out
It is just cumbersome during underground installation maintenance needs dismounting well lid.Either concrete or irony, due to conducting oneself with dignity larger, and
And there is no special mechanization provision for disengagement when dismantling, full dependence is manually dismantled using crowbar.So take in unloading process
When, laborious, also certain danger.Based on this, a kind of dolly that can automatically lift inspection well cover is we have invented.
At present, it is this mainly to have the disadvantage that by the traditional approach that inspection well cover is manually dismantled using crowbar：
1st, inspection well cover deadweight is larger, lacks motorisation unit, compares during installation and removal and loses time and manpower.
2nd, for the inspection shaft of the underground gas pipeline in city, because long-time is closed, it is easy that the inside may produce some
Combustion explosion hazard gases.So when being dismantled using crowbar, crowbar and irony inspection well cover easily produce spark, and then are possible to cause quick-fried
It is fried, cause casualties.
The content of the invention
For above-mentioned problems of the prior art or defect, it is an object of the present invention to provide a kind of be used to dismantle
The automatic hoisting device of inspection well cover, which reduces the input of the manpower during inspection well cover installation and removal, is installation and removal
The time has been saved, efficiency of construction has been improve.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of automatic hoisting device for dismantling inspection well cover, including lifting car body, are provided with dynamic on the lifting car body
Force mechanisms and derricking gear, actuating unit is connected with derricking gear by dynamic conveyor belt, and derricking gear includes fixture, transmission
Part and a hanging piece, driving member is arranged on fixture, fixture connection dynamic conveyor belt；Actuating unit will using dynamic conveyor belt
Power is sent to derricking gear, and power has been sent to into the lifting that hanging piece has controlled hanging piece by driving member, realizes inspection well cover
Lifting.
Specifically, the fixture is arranged on the lifting car body, and the driving member includes power transmission shaft, power transmission shaft connection
Described dynamic conveyor belt, power transmission shaft is connected with described hanging piece by playing messenger wire；The rotation of dynamic conveyor belt drives power transmission shaft
Rotate, the lifting of hanging piece is played by lifting by crane line traffic control.
Specifically, described hanging piece includes suit in the fixed guide pipe being installed on the fixture, fixed guide pipe
There is slide-and-guide pipe, slide-and-guide pipe is flexibly connected with fixed guide pipe；The described messenger wire of slide-and-guide pipe connection；Slip is led
Boatswain chair is installed to the end of pipe, the bottom surface of boatswain chair is provided with two suspension hooks.
Specifically, the bottom edge inner side of the fixed guide pipe is provided with the first flange, the top of the slide-and-guide pipe
End margin outside is provided with the second flange, and the second flange is stretched into inside fixed guide pipe, and the first flange can stop the second flange
Depart from fixed guide pipe.
Specifically, the bottom of the slide-and-guide pipe is provided with suspension ring, the suspension ring connection end for playing messenger wire.
Specifically, two bar holes are offered on the boatswain chair, described two suspension hooks can be slided respectively along two bar holes
It is dynamic.
Specifically, the fixture includes two connecting cross beams, and the two ends of connecting cross beam are vertically arranged with respectively a purlin
Post, two purlin posts of the same side of two connecting cross beams are connected by shoulder beam；The power transmission shaft is arranged on two connecting cross beams two
Between two purlin posts of side；Plate girder is provided between two connecting cross beams, the upper end of the fixed guide pipe passes through plate girder
And be installed on plate girder.
Specifically, the lifting car body includes two vehicle body hanger cross bars, and the lifting car body also includes supporting mechanism,
Support mechanism includes two socles, and socle is movably arranged on the lower section of vehicle body hanger cross bar.
Specifically, by two wing plate connections between the socle and vehicle body hanger cross bar, two wing plates are separately positioned on
The both sides of socle；The upper end of wing plate is connected by multiple first bolts and vehicle body hanger cross bar, and the lower end of wing plate is provided with second
Bolt and the 3rd bolt, the wing plate, socle and another wing plate in the second wing plate of screw bolt passes two, socle can
Rotate relative to the first bolt；3rd bolt can sequentially pass through two wing plates.
Specifically, the actuating unit includes mounting bracket, and mounting bracket is installed on lifting car body, pacifies in mounting bracket
Equipped with motor and sheave, the rotor of motor connects the wheel shaft of sheave.
Compared with prior art, the present invention has following technique effect：The present invention arranges actuating unit, is transmitted using power
Power is sent to derricking gear by band, and power has been sent to into the lifting that hanging piece has controlled hanging piece by driving member, realizes inspection shaft
The automatic lifting of lid, so as to save human and material resources, improves efficiency of construction；It is artificial using sled under summer high temperature dry weather
When thick stick carries out dismounting inspection well cover, once produce the spark fuel gas in well that is possible to ignite exploding, and the apparatus is used just
The generation of such accident can be avoided.
Description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the side view of the present invention；
Fig. 4 is the top view of the present invention；
Fig. 5 is the structural representation of actuating unit；
Structural representations of the Fig. 6 for the socle of supporting mechanism when vertical with vehicle body hanger cross bar；
Structural representations of the Fig. 7 for the socle of supporting mechanism when parallel with vehicle body hanger cross bar；
Fig. 8 is the structural scheme of mechanism of derricking gear；
Fig. 9 has been hanging piece internal structure schematic diagram；
Each label implication in figure：1-lifting car body, 101-vehicle body hanger cross bar, 2-actuating unit, 201-install
Support, 202-motor, 203-sheave, 204-accumulator, 205-control box, 206-rising button, 207-decline is pressed
Button, 3-derricking gear, 4-dynamic conveyor belt, 5-fixture, 501-connecting cross beam, 502-purlin post, 503-shoulder beam,
504-plate girder, 6-driving member, 601-power transmission shaft, 602-many mouthfuls sheaves, 603-single port sheave, a 7-hanging piece, 701-
Fixed guide pipe, 702-slide-and-guide pipe, 703-boatswain chair, 704-suspension hook, the 705-the first flange, the 706-the second flange,
707-suspension ring, 708-bar hole, 8-play messenger wire, 9-supporting mechanism, 901-socle, 902-wing plate, the 903-the first spiral shell
Bolt, the 904-the first bolt hole, the 905-the second bolt hole, the 906-the three bolt hole.
The solution of the present invention is made with reference to the accompanying drawings and detailed description explain in further detail and explanation.
Specific embodiment
The automatic hoisting device for dismantling inspection well cover of the present invention, referring to Fig. 1-4, including lifting car body 1, the lifting
Actuating unit 2 and derricking gear 3 are installed, actuating unit 2 is connected with derricking gear 3 by dynamic conveyor belt 4 on car body 1, rise
Loop wheel machine structure 3 includes fixture 5, driving member 6 and plays hanging piece 7, and driving member 6 is arranged on fixture 5, and the connection power of fixture 5 is passed
Send band 4；Power is sent to derricking gear 3 by actuating unit 2 using dynamic conveyor belt 4, has been sent to power by driving member 6
Hanging piece 7 has controlled the lifting of hanging piece 7.The automatic hoisting device of the present invention has utilized hanging piece to realize the automatic lifting of inspection well cover, from
And human and material resources are saved, improve efficiency of construction.
Wherein, referring to Fig. 5, actuating unit 2 includes mounting bracket 201, and mounting bracket 201 is arranged on lifting car body 1, peace
Motor 202, accumulator 204 and control box 205 are installed on dress support 201, rising button 206 is provided with control box 205
With decline button 207, by rising button 206 and decline button 207 positive brick and the reversion of motor 202 are controlled.Mounting bracket
201 include base plate, and base plate lower section is provided with mount holder, and mount holder is arranged on lifting car body 1.The rotor of motor 202
The wheel shaft of connection sheave 203, the connection dynamic conveyor belt 4 of sheave 203.The model and power of motor 202 can be according to reality
Need selecting, be typically chosen that rotating speed is low, the motor that power is strong, be so conducive to the control of hoisting process medium velocity.Sheave
203 are used to fix dynamic conveyor belt 4, prevent dynamic conveyor belt 4 from sliding in rotation process, and the inner side of sheave 203 is gear-like,
Anti- sliding stop can be mutually twisted with the end of the rotor of motor 202.The accumulator 204 can adopt lithium battery, in order to subtract
Light dead-weight.The mount holder is made using I-steel, and its intensity is high, good endurance.
Lifting car body 1 includes two vehicle body hanger cross bars 101, two wheels and axletrees, and axletree connects two wheels；Car body
One end of rack cross-bar 101 is provided with wheel, and the other end is provided with supporting mechanism 9.Supporting mechanism 9 is used to support whole rising to lift
Put.Wherein, the tire of wheel is wear-resisting, flexible using quality of rubber materials, it is possible to reduce the vibrations of car traveling process；Wheel rim is conjunction
Gold or steel are made, and bear upper load with enough intensity, and by from the load transmission of axletree to tire.
Referring to Fig. 8, the fixture 5 is arranged on described vehicle body hanger cross bar 101, and the driving member 6 includes transmission
Axle 601, is provided with many mouthfuls of sheaves 602 and single port sheave 603 on power transmission shaft 601, many mouthfuls of sheaves 602 connect dynamic conveyor belt 4, single
Messenger wire 8 is set on mouth sheave 603, has been played a messenger wire 8 and has been connected hanging piece 7；The rotation of dynamic conveyor belt 4 drives power transmission shaft 601 to rotate,
The lifting of hanging piece 7 has been controlled by playing messenger wire 8.
Wherein, power transmission shaft 601 is formed using steel pipe manufacturing, and with enough intensity and torsional rigidity actuating unit is undertaken
The moment of torsion that 2 transmission come, while deadweight can be mitigated using hollow-core construction.
Referring to Fig. 9, described hanging piece 7 includes the fixed guide pipe 701 being installed on the fixture 5, fixed guide pipe
Slide-and-guide pipe 702 is set with 701, slide-and-guide pipe 702 is flexibly connected with fixed guide pipe 701；Slide-and-guide pipe 702 connects
A described messenger wire 8 is connect, a messenger wire 8 is played and is adopted steel hinge line；The end of slide-and-guide pipe 702 is provided with boatswain chair 703, boatswain chair 703
Bottom surface is provided with two suspension hooks 704.Specifically, the bottom edge inner side of the fixed guide pipe 701 is provided with the first flange
705, the tip edge outside of the slide-and-guide pipe 702 is provided with the second flange 706, and the second flange 706 stretches into fixed guide
Inside pipe 701, the first flange 705 can stop that the second flange 706 departs from fixed guide pipe 701.The slide-and-guide pipe 702
Bottom is provided with suspension ring 707, and suspension ring 707 connect the end for playing messenger wire 8.
When power transmission shaft 601 is rotated, messenger wire 8 can be driven to move upwards, so as to pull slide-and-guide pipe 702 to lead in fixation
Move upwards into pipe 701, drive boatswain chair 703 and suspension hook 704 to move upwardly together, suspension hook 704 catches on the inspection well cover to be dismantled,
Realize the automatic lifting of inspection well cover.In addition, slide-and-guide pipe 702 can be rotated relative to fixed guide pipe 701, hang so as to drive
Plate 703 and suspension hook 704 are rotated together, in order to suspension hook 704 is alignd with the aperture of inspection well cover.
In order that the boom hoisting of the present invention can be applied to the inspection well cover of different-diameter, the boatswain chair 703 is offered
Two bar holes 708, two suspension hooks 704 can slide respectively along two bar holes 708, so as to change between two suspension hooks 704
Spacing, in order to suspension hook 704 is alignd with the aperture of inspection well cover.
In order to fixture 5 is fixedly mounted on lifting car body 1, the fixture 5 includes two connecting cross beams 501, even
The two ends for connecing crossbeam 501 are vertically arranged with respectively a purlin post 502, two purlin posts 502 of the same side of two connecting cross beams 501
Connected by shoulder beam 503；The power transmission shaft 601 is arranged between two purlin posts 502 of two both sides of connecting cross beam 501；Two
Plate girder 504 is provided between connecting cross beam 501, the upper end of the fixed guide pipe 5 passes through plate girder 504 and is installed in steel plate
On beam 504.
Wherein, shoulder beam 503 is used for dynamic loading and the dead load for supporting power transmission shaft 601 to transmit, and purlin post 502 adopts hollow four rib
Post is made, and is transferred to lift by crane car body 1 for a brace shoulder beam 503 and by the fractional load during lifting, while also acting as firm
The effect of shoulder beam 503.
The outer wall of the fixed guide pipe 5 is prism structure, and its inwall is smooth cylindrical structure, and outer wall is prism structure
Purpose of design is so as to more consolidate with what plate girder 504 was connected, and inwall is for the purpose of design of smooth cylindrical structure, just
In slide-and-guide pipe 702 in the internal slide of fixed guide pipe 701.
The supporting mechanism 9 includes two socles 901, and socle 901 is movably arranged on the lower section of vehicle body hanger cross bar 101.
In use, regulation socle 901 is vertical with vehicle body hanger cross bar 101, and socle 901 plays support car body for the device of the present invention
The effect of rack cross-bar 101.When the device of the present invention does not work, regulation socle 901 is parallel with vehicle body hanger cross bar 101, just
Push in car body 1 will be lifted by crane.
Specific implementation is as follows：Referring to Fig. 6 and Fig. 7, two wings are passed through between socle 901 and vehicle body hanger cross bar 101
Plate 902 connects, and two wing plates 902 are separately positioned on the both sides of socle 901；The upper end of wing plate 902 passes through multiple first bolts 903
It is connected with vehicle body hanger cross bar 101, the lower end of wing plate 902 is provided with the second bolt and the 3rd bolt, the second screw bolt passes
A wing plate 902, socle 901 and another wing plate 902 in two wing plates 902, socle 901 can be relative to the first bolt
903 rotate；3rd bolt can sequentially pass through two wing plates 902.
The lower end of wing plate 902 is provided with 3 bolts hole, respectively the first bolt hole 904, the second bolt hole 905 and the 3rd
Bolt hole 906, the second bolt is then passed through socle 901 and another wing plate through after the second bolt hole 905 of a wing plate 902
902 the second bolt hole 905；When socle 901 is vertical with vehicle body hanger cross bar 101, the 3rd bolt is through two wing plates 902
First bolt hole 904, to prevent socle 901 from rotating；When socle 901 needs parallel with vehicle body hanger cross bar 101, by the 3rd spiral shell
Bolt is removed, and the 3rd bolt is passed through into the 3rd bolt hole 906 of two wing plates 902, to prevent socle 901 from rotating.
The middle part of vehicle body hanger cross bar 101 is higher than its two ends, and the derricking gear 3 is arranged on vehicle body hanger cross bar 101
Medium position；The purpose of above-mentioned setting is, on the one hand, be easy to promote lifting car body 1 to advance；On the other hand, middle protrusion, can
Think that following lifting reserves larger space, be easy to the lifting of inspection well cover.
Claims (10)
1. a kind of automatic hoisting device for dismantling inspection well cover, including lifting car body (1), it is characterised in that the hoisting machine
Actuating unit (2) and derricking gear (3) are installed, actuating unit (2) is with derricking gear (3) by dynamic conveyor belt on body (1)
(4) connect, derricking gear (3) is including fixture (5), driving member (6) and plays hanging piece (7), and driving member (6) is installed in fixture
(5) on, fixture connection dynamic conveyor belt (4)；Power is sent to lifting machine by actuating unit (2) using dynamic conveyor belt (4)
Structure (3), the lifting that hanging piece (7) has controlled hanging piece (7) has been sent to by driving member (6) by power, realizes the lifting of inspection well cover.
2. it is used to as claimed in claim 1 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the fixture (5)
On lifting car body (1), the driving member (6) includes power transmission shaft (601), and power transmission shaft (601) connection is described to be moved
Power conveyer belt (4), power transmission shaft (601) is connected with described hanging piece (7) by playing messenger wire (8)；The rotational band of dynamic conveyor belt (4)
Dynamic power transmission shaft (601) rotates, and the lifting of hanging piece (7) has been controlled by playing messenger wire (8).
3. it is used to as claimed in claim 2 dismantle the automatic hoisting device of inspection well cover, it is characterised in that described hanging piece (7)
Including the fixed guide pipe (701) being installed on the fixture (5), in fixed guide pipe (701) slide-and-guide pipe is set with
(702), slide-and-guide pipe (702) is flexibly connected with fixed guide pipe (701)；The described lifting of slide-and-guide pipe (702) connection
Line (8)；The end of slide-and-guide pipe (702) is provided with boatswain chair (703), and the bottom surface of boatswain chair (703) is provided with two suspension hooks
(704)。
4. it is used to as claimed in claim 3 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the fixed guide pipe
(701) bottom edge inner side is provided with the first flange (705), and the tip edge outside of the slide-and-guide pipe (702) is arranged
There is the second flange (706), it is internal that the second flange (706) stretches into fixed guide pipe (701), the first flange (705) can stop the
Two flanges (706) depart from fixed guide pipe (701).
5. it is used to as claimed in claim 3 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the slide-and-guide pipe
(702) bottom is provided with suspension ring (707), suspension ring (707) the connection end for playing messenger wire (8).
6. it is used to as claimed in claim 4 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the boatswain chair (703)
On offer two bar holes (708), described two suspension hooks (704) can be slided respectively along two bar holes (708).
7. it is used to as claimed in claim 3 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the fixture (5)
Including two connecting cross beams (501), the two ends of connecting cross beam (501) are vertically arranged with respectively a purlin post (502), two connections
Two purlin posts (502) of the same side of crossbeam (501) are connected by shoulder beam (503)；The power transmission shaft (601) is installed in two companies
Connect between two purlin posts (502) of crossbeam (501) both sides；Plate girder (504), institute are provided between two connecting cross beams (501)
The upper end of fixed guide pipe (701) is stated through plate girder (504) and is installed on plate girder (504).
8. the automatic hoisting device for dismantling inspection well cover as described in claim 1 or 7, it is characterised in that the hoisting machine
Body (1) includes two vehicle body hanger cross bars (101), and lifting car body (1) also includes supporting mechanism (9), supporting mechanism (9) bag
Two socles (901) are included, socle (901) is movably arranged on the lower section of vehicle body hanger cross bar (101).
9. it is used to as claimed in claim 8 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the socle (901)
It is connected by two wing plates (902) between vehicle body hanger cross bar (101), two wing plates (902) are separately positioned on socle (901)
Both sides；The upper end of wing plate (902) is connected by multiple first bolts (903) and vehicle body hanger cross bar (101), wing plate (902)
Lower end the second bolt and the 3rd bolt, a wing plate in the second wing plate of screw bolt passes two (902) are installed
(902), socle (901) and another wing plate (902), socle (901) can be rotated relative to the first bolt (903)；3rd spiral shell
Bolt can sequentially pass through two wing plates (902).
10. it is used to as claimed in claim 1 dismantle the automatic hoisting device of inspection well cover, it is characterised in that the actuating unit
(2) including mounting bracket (201), mounting bracket (201) is installed in lifting car body (1), and mounting bracket is provided with electricity on (201)
Motivation (202) and sheave (203), the wheel shaft of rotor connection sheave (203) of motor (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118479.4A CN106672828B (en) | 2016-12-07 | 2016-12-07 | A kind of automatic hoisting device for being used to dismantle inspection well cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118479.4A CN106672828B (en) | 2016-12-07 | 2016-12-07 | A kind of automatic hoisting device for being used to dismantle inspection well cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106672828A true CN106672828A (en) | 2017-05-17 |
| CN106672828B CN106672828B (en) | 2018-06-29 |
Family
ID=58867932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611118479.4A Expired - Fee Related CN106672828B (en) | 2016-12-07 | 2016-12-07 | A kind of automatic hoisting device for being used to dismantle inspection well cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672828B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487745A (en) * | 2017-07-10 | 2017-12-19 | 河南宏骏通信工程有限公司 | Well lid extraction element is used in a kind of communication engineering construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665387A (en) * | 1948-06-01 | 1952-01-23 | Dynamatic Corp | Improvements in winch control |
| CN201317648Y (en) * | 2008-11-13 | 2009-09-30 | 武汉大学 | Vehicle well cover lifting device |
| CN201647906U (en) * | 2010-01-23 | 2010-11-24 | 甘肃省第三建筑工程公司 | Artificial bored well pile earthwork hoister |
| CN202594739U (en) * | 2012-05-31 | 2012-12-12 | 民勤县威瑞环保有限责任公司 | Manhole cover opener |
| CN202704923U (en) * | 2012-08-09 | 2013-01-30 | 江西赣州供电公司 | Cover plate lifting device |
| CN205313018U (en) * | 2016-02-01 | 2016-06-15 | 重庆工商职业学院 | Road is hoisting device for well lid |
-
2016
- 2016-12-07 CN CN201611118479.4A patent/CN106672828B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665387A (en) * | 1948-06-01 | 1952-01-23 | Dynamatic Corp | Improvements in winch control |
| CN201317648Y (en) * | 2008-11-13 | 2009-09-30 | 武汉大学 | Vehicle well cover lifting device |
| CN201647906U (en) * | 2010-01-23 | 2010-11-24 | 甘肃省第三建筑工程公司 | Artificial bored well pile earthwork hoister |
| CN202594739U (en) * | 2012-05-31 | 2012-12-12 | 民勤县威瑞环保有限责任公司 | Manhole cover opener |
| CN202704923U (en) * | 2012-08-09 | 2013-01-30 | 江西赣州供电公司 | Cover plate lifting device |
| CN205313018U (en) * | 2016-02-01 | 2016-06-15 | 重庆工商职业学院 | Road is hoisting device for well lid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487745A (en) * | 2017-07-10 | 2017-12-19 | 河南宏骏通信工程有限公司 | Well lid extraction element is used in a kind of communication engineering construction |
| CN107487745B (en) * | 2017-07-10 | 2019-10-29 | 林驰杰 | A kind of communication engineering construction well lid extraction element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106672828B (en) | 2018-06-29 |
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