CN110040670A - A kind of Portable hydraulic unit opened for pipeline manhole lid - Google Patents
A kind of Portable hydraulic unit opened for pipeline manhole lid Download PDFInfo
- Publication number
- CN110040670A CN110040670A CN201910397574.XA CN201910397574A CN110040670A CN 110040670 A CN110040670 A CN 110040670A CN 201910397574 A CN201910397574 A CN 201910397574A CN 110040670 A CN110040670 A CN 110040670A
- Authority
- CN
- China
- Prior art keywords
- jack
- well lid
- lifting pin
- notch
- frame plate
- 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
Links
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
- B66F19/005—Lifting devices for manhole covers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of Portable hydraulic units opened for pipeline manhole lid, including walker, cap-opening mechanism, position-limit mechanism, walker includes walking frame plate, guide rod, guide rod is located on walking frame plate, frame plate lower part walk equipped with universal wheel, cap-opening mechanism includes jack, lifting pin, jack, which slides up and down, to be located on guide rod, lifting pin swing is connected at the top of jack piston, lifting pin lower part is equipped with the oblique hook of notch of cooperation well lid notch, well lid notch is caught in the oblique hook cooperation of the notch of lifting pin lower end, lifting pin uplink drives well lid to open, top lift at this time is larger, and well lid bracing ring will not be touched.Simultaneously in order to preferably carry jack, setting walking frame plate and universal wheel, very heavy top/bottom part touch ground for the reaction force acts of jacking on ground.When uncapping without jacking, the cooperation of limiting tooth, positive stop hook ensure that cap-opening mechanism will not glide without reason, and ensure that jack mops floor will not rub.
Description
Technical field
The present invention relates to pipeline manhole lid opening technology field more particularly to a kind of portable liquids opened for pipeline manhole lid
Pressure device.
Background technique
In heat distribution pipe network system, urban pipe network is largely embedded in road in the following, when checking pipe network interface compensator,
Opening conduits well well lid is needed, as shown in Fig. 4, edge well lid jaggy, but since well lid by vehicle the factors shadow such as is rolled
It rings, when practical open manhole cover operates, need to manually use the tools such as crowbar or simple wire hook, not open or be not easy to open there are manpower
Situation is more, time-consuming and laborious, or even well lid is caused to damage, using crowbar it is also possible to causing the damage of well lid bracing ring, to inspection
Looking into work makes troubles, and to solve problems, need to develop a kind of simple, efficient, practical well cover opening device.
Summary of the invention
The present invention be exactly in order to solve deficiencies of the prior art, provide it is a kind of for pipeline manhole lid open just
Formula hydraulic device is taken, jack uses fluid pressure type, makes lifting pin uplink using the hydraulic top lift of jack, lifting pin lower end
Well lid notch is caught in the oblique hook cooperation of notch, and lifting pin uplink drives well lid to open, and top lift at this time is larger, and will not touch
To well lid bracing ring.Simultaneously in order to preferably carry jack, setting walking frame plate and universal wheel, however, to ensure that universal
Wheel is not subject to crushing, and needs to glide in cap-opening mechanism along guide rod, very heavy top/bottom part touches reaction force acts of the ground by jacking
On ground.When uncapping without jacking, the cooperation of limiting tooth, positive stop hook ensure that cap-opening mechanism will not glide without reason,
Ensure that jack mops floor will not rub.
The technical scheme adopted by the invention to solve the technical problem is that:
A kind of Portable hydraulic unit opened for pipeline manhole lid, well lid is embedding on the ground, and well lid passes through well lid shaft
It is mounted on well lid bracing ring, well lid edge is provided with the well lid notch for helping to open, including walker, cap-opening mechanism, position restrainer
Structure, walker include walking frame plate, guide rod, and guide rod is located on walking frame plate, and walking frame plate lower part is equipped with universal wheel, cap-opening mechanism
Including jack, lifting pin, jack, which slides up and down, to be located on guide rod, and lifting pin swing is connected at the top of jack piston, top
Rising stem lower part is equipped with the oblique hook of notch of cooperation well lid notch；
Position-limit mechanism includes the limited post being located on walking frame plate, the limit plate being hinged on cap-opening mechanism, limited post, limit
Mutually matched limiting tooth, positive stop hook are respectively equipped on the plate of position.
The very heavy top/bottom part is fixed with jack bottom plate, and jack bottom plate is equipped with the guide sleeve for cooperating the guide rod.
The jack bottom plate lower part is fixed with supporting leg, and the hole that cooperation supporting leg passes through is provided on frame plate of walking.
The supporting leg is the arc-shaped of cooperation well lid bracing ring.
The jack cylinder body is equipped with limit plate beam barrel, and limit plate is rotatably installed in limit board shaft by limiting board shaft
In cylinder, spring is equipped between limit plate and the cylinder body of jack；It limits board shaft extended end and is equipped with turning handle.
Limiting tooth section is zigzag, and limiting tooth downside tilts upward, and positive stop hook cooperates limiting tooth.
The top land of the jack is equipped with cantilever, and lifting pin is located at the hanging of cantilever by the rotation of lifting pin axis
End.
The beneficial effects of the present invention are:
1, jack uses fluid pressure type, makes lifting pin uplink using the hydraulic top lift of jack, lifting pin lower end lacks
Tiltedly well lid notch is caught in hook cooperation to mouth, and lifting pin uplink drives well lid to open, and top lift at this time is larger, and will not touch
Well lid bracing ring.Simultaneously in order to preferably carry jack, setting walking frame plate and universal wheel, however, to ensure that universal wheel
It is not subject to crushing, needs when cap-opening mechanism glides along guide rod, very heavy top/bottom part touches reaction force acts of the ground by jacking
On ground.When uncapping without jacking, the cooperation of limiting tooth, positive stop hook ensure that cap-opening mechanism will not glide without reason,
Ensure that jack will not mop floor friction.
2, when lifting pin cooperates well lid notch, lifting pin is located at jack side, will not when in order to uncap
It tilts, inclined power can be transferred to walker by guide rod by guide sleeve, share inclination by the universal wheel of walker
Power.
3, the purpose that cantilever is arranged is to guarantee that lifting pin can rotate certain angle, is beaten when cooperating well lid notch
The oil return valve of jack is opened, lifting pin rotates by a certain angle to jack, while worker is pressing against lifting pin upper end, so that jack
Piston comes downwards to suitable position, and lifting pin is gone back to, and is then shut off oil return valve, shakes the rocking handle of jack, so that jack
Piston rises, and lifting pin is driven to open well lid by the oblique hook of notch.
4, mentioned-above jack protects when jacking universal wheel and is glided, the supporting leg of jack bottom plate lower part
It plays a supporting role, the reaction force of entire top lift is shifted by ground, simultaneously because supporting leg is cooperation well lid support
That encloses is arc-shaped, and reaction force can be transferred to well lid bracing ring.
5, since spring supporting limit plate cooperates limited post, the cooperation of positive stop hook and limiting tooth guarantees that cap-opening mechanism can only lead to
It crosses in pulling and slides, and cannot glide because of self weight, when rotation turning handle, limiting tooth is detached from by limit board shaft drive positive stop hook, in this way
Jack can touch ground or well lid bracing ring since self weight is snapped down to supporting leg.
Detailed description of the invention
Fig. 1 is the whole assembled view of the present invention；
Fig. 2 is cap-opening mechanism assembled view of the present invention；
Fig. 3 is limit plate view of the present invention；
Fig. 4 is that well lid of the present invention installs view.
In figure: 1- walker, 2- cap-opening mechanism, 3- position-limit mechanism, the ground 4-, 5- well lid, 11- universal wheel, 12- walker
Plate, 13- guide rod, 21- jack, 22- cantilever, 23- lifting pin, 24- lifting pin axis, the oblique hook of 25- notch, 26- jack bottom plate,
27- guide sleeve, 28- supporting leg, 31- limited post, 32- limiting tooth, 33- limit plate, 34- positive stop hook, 35- limit plate beam barrel, 36- limit
Position board shaft, 37- turning handle, 38- spring, 51- well lid notch, 52- well lid shaft.
Specific embodiment
In order to clearly illustrate the technical characterstic of this programme, below by specific embodiment, and its attached drawing is combined, to this
Invention is described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.Art
The orientation or positional relationship of the instructions such as language "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
A kind of Portable hydraulic unit opened for pipeline manhole lid, on ground 4, well lid 5 is turned well lid 5 by well lid
Axis 52 is mounted on well lid bracing ring, and 5 edge of well lid is provided with the well lid notch 51 for helping to open, including walker 1, cap-opening mechanism
2, position-limit mechanism 3, walker 1 include walking frame plate 12, guide rod 13, and guide rod 13 is located on walking frame plate 12, walks under frame plate 12
Portion is equipped with universal wheel 11, and cap-opening mechanism 2 includes jack 21, lifting pin 23, and jack 21, which slides up and down, to be located on guide rod 13, top
The swing of rising stem 23 is connected to 21 top land of jack, and 23 lower part of lifting pin is equipped with the oblique hook 25 of notch of cooperation well lid notch 51；
Position-limit mechanism 3 includes the limited post 31 being located on walking frame plate 12, the limit plate 33 that is hinged on cap-opening mechanism 2, limited post 31,
Mutually matched limiting tooth 32, positive stop hook 34 are respectively equipped on limit plate 33.
Jack 21 uses fluid pressure type, makes 23 uplink of lifting pin using the hydraulic top lift of jack 21, under lifting pin 23
Well lid notch 51 is caught in the oblique cooperation of hook 25 of the notch at end, and 23 uplink of lifting pin drives well lid 5 to open, and top lift at this time is larger,
And well lid bracing ring will not be touched.Simultaneously in order to preferably carry jack 21, walking frame plate 12 and universal wheel are set
11, however, to ensure that universal wheel 11 is not subject to crushing, need when cap-opening mechanism 2 glides along guide rod 13,21 bottom of jack
Ground is touched by the reaction force acts of jacking on ground 4.When uncapping without jacking, limiting tooth 32, positive stop hook 34
Cooperation ensure that cap-opening mechanism 2 will not glide without reason, ensure that jack 21 will not mop floor friction.
21 bottom of jack is fixed with jack bottom plate 26, and jack bottom plate 26, which is equipped with, cooperates the guide rod 13
Guide sleeve 27.The top land of the jack 21 is equipped with cantilever 22, and lifting pin 23 is located at outstanding by the rotation of lifting pin axis 24
The free end of arm 22.
Lifting pin 23 cooperate well lid notch 51 when, lifting pin 23 is located at 21 side of jack, in order to uncap when
Time is not in inclination, and inclined power can be transferred to walker 1 by guide rod 13, pass through the ten thousand of walker 1 by guide sleeve 27
Inclined power is shared to wheel 11.
Be arranged cantilever 22 purpose be guarantee lifting pin 23 can rotate certain angle, cooperate well lid notch 51 when
The oil return valve for opening jack 21 is waited, lifting pin 23 rotates by a certain angle to jack 21, while worker is pressing against on lifting pin 23
End, so that 21 piston of jack comes downwards to suitable position, lifting pin 23 is gone back to, and is then shut off oil return valve, shakes jack
21 rocking handle drives lifting pin 23 to open well lid 5 by the oblique hook 25 of notch so that 21 piston of jack rises.
26 lower part of jack bottom plate is fixed with supporting leg 28, and cooperation supporting leg 28 is provided on frame plate 12 of walking and is passed through
Hole.The supporting leg 28 is the arc-shaped of cooperation well lid bracing ring.
Mentioned-above jack 21 protects when jacking universal wheel 11 and is glided, and 26 lower part of jack bottom plate is held
Weight leg 28 is played a supporting role, and the reaction force of entire top lift is shifted by ground, simultaneously because supporting leg 28 is cooperation
Well lid bracing ring it is arc-shaped, reaction force can be transferred to well lid bracing ring.
21 cylinder body of jack is equipped with limit plate beam barrel 35, and limit plate 33 is rotatably installed in by limiting board shaft 36
In limit plate beam barrel 35, spring 38 is equipped between limit plate 33 and the cylinder body of jack 21；It limits 36 extended end of board shaft and is equipped with and turn
Handle 37.32 section of limiting tooth is zigzag, and 32 downside of limiting tooth tilts upward, and positive stop hook 34 cooperates limiting tooth 32.
Since 38 support limit plate 33 of spring cooperates limited post 31, the cooperation of positive stop hook 34 and limiting tooth 32 guarantees machine of uncapping
Structure 2 can only cannot be glided by sliding on pulling because of self weight, when rotation turning handle 37, drive positive stop hook 34 by limit board shaft 36
It is detached from limiting tooth 32, such jack 21 can touch ground 4 or well lid bracing ring since self weight is snapped down to supporting leg 28.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (7)
1. a kind of Portable hydraulic unit opened for pipeline manhole lid, well lid is embedding on the ground, and well lid is pacified by well lid shaft
On well lid bracing ring, well lid edge, which is provided with, helps the well lid notch opened, characterized in that including walker, cap-opening mechanism,
Position-limit mechanism, walker include walking frame plate, guide rod, and guide rod is located on walking frame plate, and walking frame plate lower part is equipped with universal wheel, are opened
Lid mechanism includes jack, lifting pin, and jack, which slides up and down, to be located on guide rod, and lifting pin swing is connected to jack piston top
Portion, lifting pin lower part are equipped with the oblique hook of notch of cooperation well lid notch；
Position-limit mechanism includes the limited post being located on walking frame plate, the limit plate being hinged on cap-opening mechanism, limited post, limit plate
On be respectively equipped with mutually matched limiting tooth, positive stop hook.
2. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 1, characterized in that described
Very heavy top/bottom part is fixed with jack bottom plate, and jack bottom plate is equipped with the guide sleeve for cooperating the guide rod.
3. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 2, characterized in that described
Jack bottom plate lower part is fixed with supporting leg, and the hole that cooperation supporting leg passes through is provided on frame plate of walking.
4. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 3, characterized in that described
Supporting leg cooperation is supported on well lid bracing ring.
5. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 1, characterized in that described
Jack cylinder body be equipped with limit plate beam barrel, limit plate by limit board shaft be rotatably installed in limit plate beam barrel, limit plate with
Spring is equipped between the cylinder body of jack；It limits board shaft extended end and is equipped with turning handle.
6. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 5, characterized in that limiting tooth
Section is zigzag, and limiting tooth downside tilts upward.
7. a kind of Portable hydraulic unit opened for pipeline manhole lid according to claim 1, characterized in that described
The top land of jack is equipped with cantilever, and lifting pin is located at the free end of cantilever by the rotation of lifting pin axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397574.XA CN110040670B (en) | 2019-05-14 | 2019-05-14 | Portable hydraulic device for opening pipeline well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397574.XA CN110040670B (en) | 2019-05-14 | 2019-05-14 | Portable hydraulic device for opening pipeline well lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110040670A true CN110040670A (en) | 2019-07-23 |
| CN110040670B CN110040670B (en) | 2024-05-31 |
Family
ID=67281769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910397574.XA Active CN110040670B (en) | 2019-05-14 | 2019-05-14 | Portable hydraulic device for opening pipeline well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110040670B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723271A (en) * | 2021-01-13 | 2021-04-30 | 江西建邦建设集团有限公司 | Auxiliary lifting device for sewer well cover |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3627157A (en) * | 1968-07-01 | 1971-12-14 | Post Office | Lifting devices |
| US4090675A (en) * | 1976-03-26 | 1978-05-23 | Wabing S.R.L. | Adhering device for general rope winding up |
| US5458435A (en) * | 1994-04-11 | 1995-10-17 | Kohno; Kazuhiko | Opening and closing apparatus for manhole cover |
| CN104444940A (en) * | 2014-11-06 | 2015-03-25 | 北京天润建设有限公司 | Well lid lifting and mounting device |
| CN204917885U (en) * | 2015-09-10 | 2015-12-30 | 冯东雷 | Piping shaft opener |
| CN206172927U (en) * | 2016-10-25 | 2017-05-17 | 管丽环境技术(上海)有限公司 | Inspection shaft cover opening device |
| CN107337166A (en) * | 2017-08-11 | 2017-11-10 | 厦门大学嘉庚学院 | Well lid closing device and its method of work |
| CN206783257U (en) * | 2017-05-09 | 2017-12-22 | 青岛能源热电有限公司 | A kind of fluid pressure type well cover opening device |
| CN107572465A (en) * | 2017-09-15 | 2018-01-12 | 高亚贵 | A kind of municipal inspection well cover levers up device |
| CN207426566U (en) * | 2017-11-17 | 2018-05-29 | 济南热力集团有限公司 | A kind of portable cable laying apparatu |
| CN207748333U (en) * | 2018-01-19 | 2018-08-21 | 河南大有能源股份有限公司新安煤矿 | A kind of underground coal mine district coal bin mouth anti-clogging fluid pressure warning device |
| CN207877212U (en) * | 2018-01-23 | 2018-09-18 | 常州港华燃气有限公司 | Well cover opening device |
| US20190041879A1 (en) * | 2017-08-01 | 2019-02-07 | Entro Industries, Inc. | Controlling load transporting devices |
| CN109336023A (en) * | 2018-12-04 | 2019-02-15 | 徐州思迈德智能装备有限公司 | A kind of inspection well cover opening device |
| CN209815620U (en) * | 2019-05-14 | 2019-12-20 | 济南热力集团有限公司 | Portable hydraulic device for opening pipeline well cover |
-
2019
- 2019-05-14 CN CN201910397574.XA patent/CN110040670B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3627157A (en) * | 1968-07-01 | 1971-12-14 | Post Office | Lifting devices |
| US4090675A (en) * | 1976-03-26 | 1978-05-23 | Wabing S.R.L. | Adhering device for general rope winding up |
| US5458435A (en) * | 1994-04-11 | 1995-10-17 | Kohno; Kazuhiko | Opening and closing apparatus for manhole cover |
| CN104444940A (en) * | 2014-11-06 | 2015-03-25 | 北京天润建设有限公司 | Well lid lifting and mounting device |
| CN204917885U (en) * | 2015-09-10 | 2015-12-30 | 冯东雷 | Piping shaft opener |
| CN206172927U (en) * | 2016-10-25 | 2017-05-17 | 管丽环境技术(上海)有限公司 | Inspection shaft cover opening device |
| CN206783257U (en) * | 2017-05-09 | 2017-12-22 | 青岛能源热电有限公司 | A kind of fluid pressure type well cover opening device |
| US20190041879A1 (en) * | 2017-08-01 | 2019-02-07 | Entro Industries, Inc. | Controlling load transporting devices |
| CN107337166A (en) * | 2017-08-11 | 2017-11-10 | 厦门大学嘉庚学院 | Well lid closing device and its method of work |
| CN107572465A (en) * | 2017-09-15 | 2018-01-12 | 高亚贵 | A kind of municipal inspection well cover levers up device |
| CN207426566U (en) * | 2017-11-17 | 2018-05-29 | 济南热力集团有限公司 | A kind of portable cable laying apparatu |
| CN207748333U (en) * | 2018-01-19 | 2018-08-21 | 河南大有能源股份有限公司新安煤矿 | A kind of underground coal mine district coal bin mouth anti-clogging fluid pressure warning device |
| CN207877212U (en) * | 2018-01-23 | 2018-09-18 | 常州港华燃气有限公司 | Well cover opening device |
| CN109336023A (en) * | 2018-12-04 | 2019-02-15 | 徐州思迈德智能装备有限公司 | A kind of inspection well cover opening device |
| CN209815620U (en) * | 2019-05-14 | 2019-12-20 | 济南热力集团有限公司 | Portable hydraulic device for opening pipeline well cover |
Non-Patent Citations (1)
| Title |
|---|
| 刘恒逸;余金龙;尚关卿;龚天乐;: "一种新型便携式窨井盖提升转运及回位装置", 机械工程师, no. 12, 10 December 2016 (2016-12-10) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723271A (en) * | 2021-01-13 | 2021-04-30 | 江西建邦建设集团有限公司 | Auxiliary lifting device for sewer well cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110040670B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102304922B (en) | Full-pile casing construction device | |
| CN110040670A (en) | A kind of Portable hydraulic unit opened for pipeline manhole lid | |
| CN205330693U (en) | Laborsaving formula is bow member erection equipment for tunnel construction | |
| CN209815620U (en) | Portable hydraulic device for opening pipeline well cover | |
| CN103663306A (en) | Hoisting device for cable well lid | |
| CN209554750U (en) | Cable well lid Operation Van | |
| CN204057891U (en) | Articulated arm lift job platform | |
| CN204662919U (en) | A kind of packaged type construction platform | |
| CN104727826B (en) | Rectangular pipe jacking host | |
| CN201150857Y (en) | Reaction pot upper cover lifting apparatus | |
| CN204355582U (en) | The safety protection mechanism of garbage collection box chamber door | |
| EP3733948B1 (en) | Lifting device and washing machine having same | |
| EP3733947B1 (en) | Lifting device and washing machine having same | |
| CN201785145U (en) | Operating device of step-changing hanging plate | |
| CN211213222U (en) | Cantilever crane for B ultrasonic examination | |
| JP3174259U (en) | Wheelchair lifting device for house | |
| CN210915212U (en) | Mechanical arm type lifter for commanding construction site | |
| CN219469414U (en) | Lifting device for water operation hanging basket | |
| CN219217501U (en) | Vertical transportation tool for auxiliary dewatering well water pump | |
| CN209358554U (en) | Tripod head type interference unit | |
| KR20110037149A (en) | A mast support and up-down apparatus of the top-down lift | |
| CN215946562U (en) | Glass lining manhole cover horizontal hoisting structure | |
| CN2866452Y (en) | Automatic oil tank lifting frame | |
| CN216445787U (en) | Bridge detects uses concrete sampling device | |
| CN211399203U (en) | English word display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |