CN104803318A - Improved hydraulic lifting device for building construction and control method thereof - Google Patents
Improved hydraulic lifting device for building construction and control method thereof Download PDFInfo
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- CN104803318A CN104803318A CN201510136892.2A CN201510136892A CN104803318A CN 104803318 A CN104803318 A CN 104803318A CN 201510136892 A CN201510136892 A CN 201510136892A CN 104803318 A CN104803318 A CN 104803318A
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- hydraulic
- control valve
- curved portions
- bar
- liquid inlet
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- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
-
- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an improved hydraulic lifting device for building construction and a control method thereof. The improved hydraulic lifting device for building construction comprises a main hydraulic rod and an auxiliary hydraulic rod, wherein the top of the auxiliary hydraulic rod is flexibly connected with the moving end of the main hydraulic rod, three mutually-independent hydraulic tappet rods are arranged in the main hydraulic rod and are arranged triangularly, the tops of the three hydraulic tappet rods are jointly hinged to a top plate, a hanging connection mechanism is arranged on the top plate, a hanging ring is fixed to the outer side of the three hydraulic tappet rods, a transverse hydraulic rod mutually perpendicular to the auxiliary hydraulic rod is arranged at the top of the auxiliary hydraulic rod and is flexibly connected with the hanging ring through a flexible hanging part. A liquid inlet control valve, a liquid outlet control valve and a bypass pressure relief valve are respectively arranged on hydraulic loops of the hydraulic tappet rods, the auxiliary hydraulic rod and the transverse hydraulic rod. The shortcoming in the prior art can be overcome, and the service life of the hydraulic lifting device can be prolonged.
Description
Technical field
The present invention relates to technical field of building construction, especially a kind of building operation hydraulic lifting apparatus of improvement and control method thereof.
Background technology
Hydraulic lifting apparatus, relative to traditional hawser suspender, has that volume is little, heavy burden ability is strong, safety advantages of higher.Chinese invention patent CN100478813C discloses a kind of hydraulic pressure lift monitored control system, improves the synchronism of hydraulic lift system.Because hydraulic efficiency pressure system belongs to precision equipment, what it occurred in the course of the work rock or rotation trend all can produce serious damage to hydraulic efficiency gear, thus make the life-span for the hydraulic lifting apparatus of construction site general shorter, this just improves the use cost of hydraulic lifting apparatus indirectly, limits the universal use of hydraulic lifting apparatus.This monitored control system of the prior art be based upon existing hydraulic lifting apparatus basis on develop, actv. protection is not had for hydraulic lifting apparatus itself.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of building operation hydraulic lifting apparatus and control method thereof of improvement, the deficiencies in the prior art can be solved, improve the stability of hydraulic lifting apparatus working process, thus extend the service life of hydraulic lifting apparatus.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
A kind of building operation hydraulic lifting apparatus of improvement, comprise master hydraulic bar and secondary hydraulic stem, the bottom of described master hydraulic bar is fixed on the top promoting target location, the movable end of master hydraulic bar is towards lifting initial position, the bottom of secondary hydraulic stem is fixed on the sidewall parallel with direction of improvement, the secondary top of hydraulic stem and the movable end of master hydraulic bar flexibly connect, three separate hydraulic lifters are provided with in master hydraulic bar, three hydraulic lifters are equilateral triangle arrangement, three hydraulic lifter tops are hinged with a top board jointly, top board is provided with hanging mechanisms, the outside of three hydraulic lifters is fixed with a link, secondary hydraulic rod top is provided with the orthogonal transverse hydraulic bar with secondary hydraulic stem, transverse hydraulic bar is flexibly connected by flexible suspension member and link, the hydraulic circuit of hydraulic lifter, secondary hydraulic stem and transverse hydraulic bar is respectively arranged with a liquid inlet control valve, goes out hydraulic control valve and bypass blowdown valve.
As preferably, the regional center of the equilateral triangle that described three hydraulic lifters surround is provided with attaching parts, the outer side edges of attaching parts is provided with three the first curved portions, first curved portions contacts with three hydraulic lifters respectively, the central movable of attaching parts is provided with pipe link, the bottom of pipe link and attaching parts moving contact, be provided with first spring body in the first curved portions, the first spring body is connected with pipe link.
As preferably, the outer wall of described hydraulic lifter is provided with hold down groove, and hold down groove top is provided with rectangular channel, and the top of rectangular channel is provided with trapezoidal channel, and the width of rectangular channel is less than the width of hold down groove, and the width of trapezoidal channel becomes large from the inside to the outside gradually; The inner side of link is provided with the first rubber section with hold down groove interference fit, and the arranged outside of the first rubber section has the metallic framework with rectangular channel bearing fit, and the arranged outside of metallic framework has the second rubber section contacted with trapezoidal channel.
As preferably, described metallic framework is provided with movable connector portions, and connector portions comprises the rifled pipe and bolt shank that cooperatively interact, realizes the adjustment to metallic framework girth by the cooperation position of adjustment rifled pipe and bolt shank.
As preferably, described flexible suspension member comprises symmetrically arranged elastic metal rack, elastic metal rack comprises the second curved portions be fixedly connected with metallic framework, second curved portions is connected with the 3rd curved portions, two symmetrical the 3rd curved portions link together, second curved portions is contrary with the bending direction of the 3rd curved portions, and the 3rd curved portions is fixed on transverse hydraulic bar.
As preferably, described bolt shank is provided with turning joint, the 3rd curved portions is provided with the push rod contacted with turning joint.
As preferably, hinged by articulation piece between described hydraulic lifter and top board, articulation piece comprises the circular metal shell fragment be fixed on top board, circular metal shell fragment is provided with through hole, in through hole, active card is connected to bulb, and bulb is fixedly connected with hydraulic lifter, is provided with cavity between circular metal shell fragment and top board, elliposoidal rubber cap is provided with, bulb and the selective exposure of elliposoidal rubber cap in cavity.
For a control method for the building operation hydraulic lifting apparatus of above-mentioned improvement, comprise the following steps:
A, open liquid inlet control valve on three hydraulic lifters simultaneously, and keep identical aperture, make master hydraulic bar drive building materials upwards to promote;
B, when building materials shake in lifting process, regulate the aperture of the liquid inlet control valve of different hydraulic lifter, the liquid inlet control valve of open auxiliary hydraulic stem, realize secondary hydraulic stem and the pulling of master hydraulic bar is adjusted;
C, when regulating the liquid inlet control valve aperture of different hydraulic lifter, if the rotating tendency of horizontal direction appears in top board, then opening the liquid inlet control valve of transverse hydraulic bar, being suppressed the horizontal direction rotating tendency of top board by link;
After D, building materials are promoted to specified altitude assignment, building materials are unloaded, close liquid inlet control valve, and open and go out hydraulic control valve accordingly, make whole hydraulic lifting apparatus get back to initial point.
Adopt the beneficial effect that brings of technique scheme to be: the present invention by use three independently hydraulic lifter realize promoting operation, utilize the adjustment to different hydraulic lifter, realize the control to the hoisting force applied with top board.Attaching parts is used for the integraty of raising three hydraulic lifters.If there is skew and the rotating tendency of increasing in lifting process, then secondary hydraulic stem and transverse hydraulic pole pair can be used to be intervened master hydraulic bar by link, thus improve the stability of building materials lifting.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of the present invention's detailed description of the invention.
Fig. 2 is the constructional drawing of attaching parts in the present invention's detailed description of the invention.
Fig. 3 is the constructional drawing that in the present invention's detailed description of the invention, link coordinates with hydraulic lifter
Fig. 4 is the constructional drawing that in the present invention's detailed description of the invention, flexible suspension member coordinates with link.
Fig. 5 is the constructional drawing that in the present invention's detailed description of the invention, top board coordinates with hydraulic lifter.
In figure: 1, master hydraulic bar; 2, secondary hydraulic stem; 3, hydraulic lifter; 4, top board; 5, hanging mechanisms; 6, link; 7, transverse hydraulic bar; 8, flexible suspension member; 9, anchor point; 10, elastic rubber layer; 11, locking bolt; 12, attaching parts; 13, the first curved portions; 14, the first spring body; 15, hold down groove; 16, rectangular channel; 17, trapezoidal channel; 18, the first rubber section; 19, metallic framework; 20, the second rubber section; 21, rifled pipe; 22, bolt shank; 23, the second curved portions; 24, the 3rd curved portions; 25, turning joint; 26, push rod; 27, circular metal shell fragment; 28, bulb; 29, elliposoidal rubber cap; 30, substrate; 31, pipe link.
Detailed description of the invention
The standardized parts used in the present invention all can be commercially, shaped piece all can carry out customized according to specification sheets with the record of accompanying drawing, the concrete connection mode of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1-5, the present invention's detailed description of the invention comprises master hydraulic bar 1 and secondary hydraulic stem 2, the bottom of described master hydraulic bar 1 is fixed on the top promoting target location, the movable end of master hydraulic bar 1 is towards lifting initial position, the bottom of secondary hydraulic stem 2 is fixed on the sidewall parallel with direction of improvement, the secondary top of hydraulic stem 2 and the movable end of master hydraulic bar 1 flexibly connect, three separate hydraulic lifters 3 are provided with in master hydraulic bar 1, three hydraulic lifters 3 are in equilateral triangle arrangement, three hydraulic lifter 3 tops are hinged with a top board 4 jointly, top board 4 is provided with hanging mechanisms 5, the outside of three hydraulic lifters 3 is fixed with a link 6, secondary hydraulic stem 2 top is provided with transverse hydraulic bar 7 orthogonal with secondary hydraulic stem 2, transverse hydraulic bar 7 is flexibly connected with link 6 by flexible suspension member 8, the hydraulic circuit of hydraulic lifter 3, secondary hydraulic stem 5 and transverse hydraulic bar 7 is respectively arranged with a liquid inlet control valve, goes out hydraulic control valve and bypass blowdown valve.The regional center of the equilateral triangle that three hydraulic lifters 3 surround is provided with attaching parts 12, the outer side edges of attaching parts 12 is provided with three the first curved portions 13, first curved portions 13 contacts with three hydraulic lifters 3 respectively, the central movable of attaching parts 12 is provided with pipe link 31, the bottom of pipe link 31 and attaching parts 31 moving contact, be provided with first spring body 14, first spring body 14 in first curved portions 13 to be connected with pipe link 31.The outer wall of hydraulic lifter 3 is provided with hold down groove 15, hold down groove 15 top is provided with rectangular channel 16, the top of rectangular channel 16 is provided with trapezoidal channel 17, and the width of rectangular channel 16 is less than the width of hold down groove 15, and the width of trapezoidal channel 17 becomes large from the inside to the outside gradually; The inner side of link 6 is provided with the first rubber section 18 with hold down groove 15 interference fit, the arranged outside of the first rubber section 18 has the metallic framework 19 with rectangular channel 16 bearing fit, and the arranged outside of metallic framework 19 has the second rubber section 20 contacted with trapezoidal channel 17.Metallic framework 19 is provided with movable connector portions, and connector portions comprises the rifled pipe 21 and bolt shank 22 that cooperatively interact, realizes the adjustment to metallic framework 19 girth by the cooperation position adjusting rifled pipe 21 and bolt shank 22.Flexible suspension member 8 comprises symmetrically arranged elastic metal rack, elastic metal rack comprises the second curved portions 23 be fixedly connected with metallic framework 19, second curved portions 23 is connected with the 3rd curved portions 24, two symmetrical the 3rd curved portions 24 link together, second curved portions 23 is contrary with the bending direction of the 3rd curved portions 24, and the 3rd curved portions 24 is fixed on transverse hydraulic bar 7.Bolt shank 22 is provided with in turning joint the 25, three curved portions 24 and is provided with the push rod 26 contacted with turning joint 25.Hinged by articulation piece between hydraulic lifter 3 and top board 4, articulation piece comprises fixing circular metal shell fragment 27 on the top plate 4, circular metal shell fragment 27 is provided with through hole, in through hole, active card is connected to bulb 28, bulb 28 is fixedly connected with hydraulic lifter 3, be provided with cavity between circular metal shell fragment 27 and top board 4, in cavity, be provided with elliposoidal rubber cap 29, bulb 28 and elliposoidal rubber cap 29 selective exposure.Hanging mechanisms 5 comprise the pedestal 30 be slidably arranged in top board 4, the surface of pedestal 30 is provided with three anchor points 9 identical with hydraulic lifter arrangement form, the top of pedestal 30 is provided with elastic rubber layer 10, elastic rubber layer 10 is fixed in top board 4, elliposoidal rubber cap 29 is fixed on elastic rubber layer 10, pedestal 30 extrudes with elastic rubber layer 10 and contacts, and the side of top board 4 is provided with the locking bolt 11 for permanent seat 30.
For the control method of the building operation hydraulic lifting apparatus of above-mentioned improvement, comprise the following steps:
A, open liquid inlet control valve on three hydraulic lifters 3 simultaneously, and keep identical aperture, make master hydraulic bar 1 drive building materials upwards to promote;
B, when building materials shake in lifting process, regulate the aperture of the liquid inlet control valve of different hydraulic lifter 3, the liquid inlet control valve of open auxiliary hydraulic stem 2, realize the pulling adjustment of secondary hydraulic stem 2 pairs of master hydraulic bars 1;
C, when regulating the liquid inlet control valve aperture of different hydraulic lifter 3, if the rotating tendency of horizontal direction appears in top board 4, then opening the liquid inlet control valve of transverse hydraulic bar 7, being suppressed the horizontal direction rotating tendency of top board 4 by link 6;
After D, building materials are promoted to specified altitude assignment, building materials are unloaded, close liquid inlet control valve, and open and go out hydraulic control valve accordingly, make whole hydraulic lifting apparatus get back to initial point.
Wherein, in step B, the aperture adjustment amount Δ t of liquid inlet control valve is Δ t=kla with the pass of the offset displacement amount l rocked and offset acceleration a
2, k is proportionality coefficient.When the aperture difference of the liquid inlet control valve on any two hydraulic lifters 3 is greater than 15%, the liquid inlet control valve of open auxiliary hydraulic stem 2, the aperture of the liquid inlet control valve of secondary hydraulic stem 2 is directly proportional to the aperture maximum difference of the liquid inlet control valve on two hydraulic lifters 3.In step C, the rotating tendency of the horizontal direction of top board 4 is that the horizontal torsion power be subject to by measuring three hydraulic lifters calculates.The liquid inlet control valve of transverse hydraulic bar 7 adopts the mode of PID adjustment.When the building materials promoted are subject to stronger external forces (blowing of such as crosswind), need to carry out quick adjusting to the application force of each hydraulic stem, the aperture at this moment only by adjusting liquid inlet control valve cannot reach quick-adjustsing object.By opening corresponding bypass blowdown valve, the pressure Rapid Variable Design of single hydraulic stem can be realized, realize the quick adjusting of hydraulic stem application force.When opening bypass blowdown valve, corresponding liquid inlet control valve will carry out the aperture increase of 3% ~ 5% in advance, and when bypass blowdown valve can be made like this to open, the pressure change of whole hydraulic efficiency pressure system keeps relatively smooth-going.
The present invention can effectively balanced hydraulic system works time be subject to external forces, thus improve the stability of hydraulic lifting apparatus working process, thus extend the service life of hydraulic lifting apparatus.
More than show and describe groundwork of the present invention and principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. the building operation hydraulic lifting apparatus improved, comprise master hydraulic bar (1) and secondary hydraulic stem (2), it is characterized in that: the bottom of described master hydraulic bar (1) is fixed on the top promoting target location, the movable end of master hydraulic bar (1) is towards lifting initial position, the bottom of secondary hydraulic stem (2) is fixed on the sidewall parallel with direction of improvement, the secondary top of hydraulic stem (2) and the movable end of master hydraulic bar (1) flexibly connect, three separate hydraulic lifters (3) are provided with in master hydraulic bar (1), three hydraulic lifters (3) are in equilateral triangle arrangement, three hydraulic lifter (3) tops are hinged with a top board (4) jointly, top board (4) is provided with hanging mechanisms (5), the outside of three hydraulic lifters (3) is fixed with a link (6), secondary hydraulic stem (2) top is provided with the orthogonal transverse hydraulic bar (7) with secondary hydraulic stem (2), transverse hydraulic bar (7) is flexibly connected by flexible suspension member (8) and link (6), the hydraulic circuit of hydraulic lifter (3), secondary hydraulic stem (5) and transverse hydraulic bar (7) is respectively arranged with a liquid inlet control valve, goes out hydraulic control valve and bypass blowdown valve.
2. the building operation hydraulic lifting apparatus of improvement according to claim 1, it is characterized in that: the regional center of the equilateral triangle that described three hydraulic lifters (3) surround is provided with attaching parts (12), the outer side edges of attaching parts (12) is provided with three the first curved portions (13), first curved portions (13) contacts with three hydraulic lifters (3) respectively, the central movable of attaching parts (12) is provided with pipe link (31), the bottom of pipe link (31) and attaching parts (12) moving contact, first spring body (14) is provided with in first curved portions (13), first spring body (14) is connected with pipe link (31).
3. the building operation hydraulic lifting apparatus of improvement according to claim 2, it is characterized in that: the outer wall of described hydraulic lifter (3) is provided with hold down groove (15), hold down groove (15) top is provided with rectangular channel (16), the top of rectangular channel (16) is provided with trapezoidal channel (17), the width of rectangular channel (16) is less than the width of hold down groove (15), and the width of trapezoidal channel (17) becomes large from the inside to the outside gradually; The inner side of link (6) is provided with the first rubber section (18) with hold down groove (15) interference fit, the arranged outside of the first rubber section (18) has the metallic framework (19) with rectangular channel (16) bearing fit, the arranged outside of metallic framework (19) to have the second rubber section (20) contacted with trapezoidal channel (17).
4. the building operation hydraulic lifting apparatus of improvement according to claim 3, it is characterized in that: described metallic framework (19) is provided with movable connector portions, connector portions comprises the rifled pipe (21) and bolt shank (22) that cooperatively interact, realizes the adjustment to metallic framework (19) girth by the cooperation position adjusting rifled pipe (21) and bolt shank (22).
5. the building operation hydraulic lifting apparatus of improvement according to claim 4, it is characterized in that: described flexible suspension member (8) comprises symmetrically arranged elastic metal rack, elastic metal rack comprises the second curved portions (23) be fixedly connected with metallic framework (19), second curved portions (23) is connected with the 3rd curved portions (24), two symmetrical the 3rd curved portions (24) link together, second curved portions (23) is contrary with the bending direction of the 3rd curved portions (24), and the 3rd curved portions (24) is fixed on transverse hydraulic bar (7).
6. the building operation hydraulic lifting apparatus of improvement according to claim 5, is characterized in that: described bolt shank (22) is provided with turning joint (25), the 3rd curved portions (24) is provided with the push rod (26) contacted with turning joint (25).
7. the building operation hydraulic lifting apparatus of improvement according to claim 1, it is characterized in that: hinged by articulation piece between described hydraulic lifter (3) and top board (4), articulation piece comprises the circular metal shell fragment (27) be fixed on top board (4), (27) are provided with through hole to circular metal shell fragment, in through hole, active card is connected to bulb (28), bulb (28) is fixedly connected with hydraulic lifter (3), cavity is provided with between circular metal shell fragment (27) and top board (4), elliposoidal rubber cap (29) is provided with in cavity, bulb (28) and elliposoidal rubber cap (29) selective exposure.
8., for a control method for the building operation hydraulic lifting apparatus of the improvement described in the claims 1, it is characterized in that comprising the following steps:
A, open liquid inlet control valve on three hydraulic lifters (3) simultaneously, and keep identical aperture, make master hydraulic bar (1) drive building materials upwards to promote;
B, when building materials shake in lifting process, regulate the aperture of the liquid inlet control valve of different hydraulic lifter (3), the liquid inlet control valve of open auxiliary hydraulic stem (2), realize secondary hydraulic stem (2) and the pulling of master hydraulic bar (1) is adjusted;
C, when regulate different hydraulic lifter (3) liquid inlet control valve aperture time, if there is the rotating tendency of horizontal direction in top board (4), then open the liquid inlet control valve of transverse hydraulic bar (7), suppressed the horizontal direction rotating tendency of top board (4) by link (6);
After D, building materials are promoted to specified altitude assignment, building materials are unloaded, close liquid inlet control valve, and open and go out hydraulic control valve accordingly, make whole hydraulic lifting apparatus get back to initial point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136892.2A CN104803318B (en) | 2015-03-27 | 2015-03-27 | Improved hydraulic lifting device for building construction and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136892.2A CN104803318B (en) | 2015-03-27 | 2015-03-27 | Improved hydraulic lifting device for building construction and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104803318A true CN104803318A (en) | 2015-07-29 |
| CN104803318B CN104803318B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510136892.2A Expired - Fee Related CN104803318B (en) | 2015-03-27 | 2015-03-27 | Improved hydraulic lifting device for building construction and control method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330951B1 (en) * | 1989-10-24 | 2001-12-18 | J&R Engineering Company, Inc. | Hydraulic boom for gantry or the like |
| CN1987700A (en) * | 2005-12-22 | 2007-06-27 | 柳州欧维姆机械股份有限公司 | Hydraulic hoisting monitor system and its use in hydraulic hoisting control |
| CN101457586A (en) * | 2008-12-23 | 2009-06-17 | 中国建筑第四工程局有限公司 | Jacking template control system and method for construction |
| JP2012001894A (en) * | 2010-06-14 | 2012-01-05 | Shimizu Corp | Continuous lifting device |
| CN102786004A (en) * | 2012-08-22 | 2012-11-21 | 中国石油天然气第七建设公司 | Integrally moving on-load hydraulic lifting system without mooring rope and lifting method |
| CN203112371U (en) * | 2013-02-27 | 2013-08-07 | 湖南农业大学 | Agricultural lifting-type tracked self-propelled walking vehicle |
| CN103848350A (en) * | 2014-03-27 | 2014-06-11 | 焦作市华科液压机械制造有限公司 | Hydraulic lifting travelling crane |
-
2015
- 2015-03-27 CN CN201510136892.2A patent/CN104803318B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330951B1 (en) * | 1989-10-24 | 2001-12-18 | J&R Engineering Company, Inc. | Hydraulic boom for gantry or the like |
| CN1987700A (en) * | 2005-12-22 | 2007-06-27 | 柳州欧维姆机械股份有限公司 | Hydraulic hoisting monitor system and its use in hydraulic hoisting control |
| CN101457586A (en) * | 2008-12-23 | 2009-06-17 | 中国建筑第四工程局有限公司 | Jacking template control system and method for construction |
| JP2012001894A (en) * | 2010-06-14 | 2012-01-05 | Shimizu Corp | Continuous lifting device |
| CN102786004A (en) * | 2012-08-22 | 2012-11-21 | 中国石油天然气第七建设公司 | Integrally moving on-load hydraulic lifting system without mooring rope and lifting method |
| CN203112371U (en) * | 2013-02-27 | 2013-08-07 | 湖南农业大学 | Agricultural lifting-type tracked self-propelled walking vehicle |
| CN103848350A (en) * | 2014-03-27 | 2014-06-11 | 焦作市华科液压机械制造有限公司 | Hydraulic lifting travelling crane |
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Inventor after: Shao Pei Inventor after: Ning Yongliang Inventor after: Hou Ran Inventor after: Li Yanhua Inventor after: Fu Yunzhao Inventor after: Zhang Di Inventor after: Dong Liping Inventor after: Bai Yeling Inventor after: Xing Bo Inventor after: Guo Yanyong Inventor before: Li Jie |
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Effective date of registration: 20170314 Address after: 050000 Yuhua West Road, Hebei Province, No. West Road, No. 9 Applicant after: Shao Pei Applicant after: Ning Yongliang Applicant after: Hou Ran Applicant after: Li Yanhua Applicant after: Fu Yunzhao Applicant after: Zhang Di Applicant after: Dong Liping Applicant after: Bai Yeling Applicant after: Xing Bo Applicant after: Guo Yanyong Address before: 610000 Sichuan city of Chengdu province Jinjiang District River Qiaojin zhengxinjieyuan C District 7 Building 2 unit 801 Applicant before: Li Jie |
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Granted publication date: 20170412 Termination date: 20210327 |