CN104444877A - Simple heavy object carrier - Google Patents
Simple heavy object carrier Download PDFInfo
- Publication number
- CN104444877A CN104444877A CN201410507702.9A CN201410507702A CN104444877A CN 104444877 A CN104444877 A CN 104444877A CN 201410507702 A CN201410507702 A CN 201410507702A CN 104444877 A CN104444877 A CN 104444877A
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- China
- Prior art keywords
- pulley
- fixed
- support
- slide rail
- sliding support
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- 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.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a simple heavy object carrier belonging to the field of carrying tools. The simple heavy object carrier comprises a base, universal trundles arranged on four bottom legs of the base, a bracket fixed together with the base to form a whole body, a sliding bracket which is arranged at the top of the bracket and is capable of sliding forwards and backwards on the bracket, a manual winch fixed to the rear part of the sliding bracket, a pulley block mounted on the front part of the sliding bracket and a lifting hook, wherein the pulley block comprises a fixed pulley and a movable pulley; a steel wire rope is led out of the manual winch, sequentially bypasses the fixed pulley and the movable pulley and then is fixed on the sliding bracket or a fixed pulley bracket; the lifting hook is connected with the movable pulley; a fixed support plate is mounted on the rear part of the base; a movable support plate is mounted on the front part of the base; and the movable support plate is articulated with the fixed support plate. By utilizing a simple structure, the double functions of lifting and transporting the heavy objects are realized; the labor intensity of workers is alleviated; meanwhile, the simple heavy object carrier is simple in structure, convenient to operate and low in cost; the use requirements of small and medium-sized enterprises can be met.
Description
Technical field
The present invention relates to a kind of transport trolley, more particularly, relate to a kind of simple and easy carrying cart for heavy articles.
Background technology
In machinery industry, often need some heavier workpiece, midget plant etc. to carry back and forth, therefore often need to use transport trolley.For heavier workpiece, a dead lift exist some difficulty and dangerous, often there is the accident that workman weighs wounded by workpiece, and the phenomenon that reels often appears in a dead lift, higher workpiece is required for product design, does not allow to occur this type of defect of colliding with, once there is phenomenon of colliding with, often need to keep in repair workpiece, the serious workpiece that even causes is scrapped, and affects the normal production order of enterprise.In some medium-and-large-sized enterprises, the hanging device of general meeting equipped with dedicated, workman directly utilizes hanging device to be placed on transport trolley by workpiece, and then be transported to the place of needs, the auxiliary of hanging device is needed again when workpiece unloads, complex operation, needs equipment many, and equipment investment cost is also corresponding to be increased.
Transport trolley uses particularly extensive in Mould Machining manufacturing enterprise.One secondary mould often needs multiple working procedure just can machine, and different operation needs distinct device to complete, and therefore a secondary mould needed repeatedly handling process before machining.General Mould Machining enterprise is all equipped with boat car, boat car is utilized to be lifted by mould, but the orbit of boat car is constant, therefore to use and dumb, and the experience that the action need of boat car is certain, the mould sling, once occur rocking more greatly, probably hurts people, in recent years, the event of hurting sb.'s feelings due to boat car misoperation also happens occasionally.Therefore, be necessary to design a kind of transport trolley facilitating carrying heavy goods in workshop, to meet the carrying demand of machinery industry to weight, avoid the risk of boat car operation and ensure that weight does not occur to clash into; In addition, also need to ensure that transport trolley is simple to operate, with low cost, to meet the user demand of medium and small sized enterprises.
Summary of the invention
1. invent the technical matters that will solve
The object of the invention is to overcome the deficiency that existing transport trolley does not have weight lifting function, weight carrying inconvenience, a kind of simple and easy carrying cart for heavy articles is provided, adopt technical scheme of the present invention, simple structure is utilized to achieve weight lifting and the dual-use function transported, reduce the industrial injury incidence of collide with risk and a dead lift of weight in carrying, alleviate the labour intensity of workman; Meanwhile, structure of the present invention is simple, easy to operate, with low cost, decreases the use of special hoisting equipment, meets the user demand of medium and small sized enterprises.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The simple and easy carrying cart for heavy articles of one of the present invention, comprise base, be located at the universal caster wheel on base four footing, the support be fixed as one with base, be located at cradle top and can on support the sliding support of slide anteroposterior, be fixed on the hand winch at sliding support rear portion, be installed on assembly pulley and the load hook of sliding support front portion, described assembly pulley comprises fixed pulley and movable pulley, steel cable is drawn in described hand winch, this steel rope is fixed on sliding support or fixed pulley support after walking around fixed pulley and movable pulley successively, described load hook is connected with movable pulley, the rear portion of described base is provided with fixing supporting plate, and front portion is provided with movable supporting plate, and this movable supporting plate and fixing supporting plate hinged, described load hook is positioned at the top of movable supporting plate.
Further, the top of described support is parallel is fixed with two external slide rails, and the shape of cross section of described external slide rail is " Qian " font, and the opening direction of two external slide rails is relative; The both sides of described sliding support are separately installed with interior slide rail, described interior slide rail is installed in external slide rail, and the rear and front end of described interior slide rail is respectively provided with a bottom roller that can roll in the lower wall of external slide rail and a upper roller that can roll on the upper side wall of external slide rail.
Further, the two ends of described external slide rail are separately installed with front rubber coating and rear rubber coating, for playing buffering and spacing effect.
Further, described fixed pulley and movable pulley are sister block.
Further, the rear cross of described sliding support is provided with drag hook, the rear cross of described support is provided with quick-speed jigs accordingly with drag hook, described quick-speed jigs matches with drag hook, for fixing sliding support.
Further, described support is also provided with hand push frame.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) the simple and easy carrying cart for heavy articles of one of the present invention, it comprises base, the universal caster wheel be located on base four footing, the support be fixed as one with base, be located at cradle top and can on support the sliding support of slide anteroposterior, the hand winch being fixed on sliding support rear portion, the assembly pulley being installed on sliding support front portion and load hook, the rear portion of base is provided with fixing supporting plate, front portion is provided with movable supporting plate, and this movable supporting plate and fixing supporting plate hinged; Dug by movable supporting plate, and transport trolley is pushed into the position of weight, make weight be in the below of load hook, because the inside of weight at transport trolley is lifted by crane, transport trolley is more firm, not easily tilts; Sling after weight, movable supporting plate is turned on base, and mobile sliding support makes weight be positioned at the midway location of movable supporting plate and fixing supporting plate, is finally positioned on supporting plate by weight, realize the steady carrying of weight; Utilize simple structure to achieve weight lifting and the dual-use function of transhipment, reduce the industrial injury incidence of collide with risk and a dead lift of weight in carrying, alleviate the labour intensity of workman; Meanwhile, structure is simple, easy to operate, with low cost, decreases the use of special hoisting equipment, meets the user demand of medium and small sized enterprises;
(2) the simple and easy carrying cart for heavy articles of one of the present invention, the top of its support is parallel is fixed with two external slide rails, and the shape of cross section of external slide rail is " Qian " font, and the opening direction of two external slide rails is relative; The both sides of sliding support are separately installed with interior slide rail, interior slide rail is installed in external slide rail, the rear and front end of interior slide rail is respectively provided with a bottom roller that can roll in the lower wall of external slide rail and a upper roller that can roll on the upper side wall of external slide rail, adopt said structure to realize sliding support to move at the top of support, improve non-deformability and the stability of motion of sliding support, add the load capacity of transport trolley, and sliding support is flexible more smooth and easy, longer service life;
(3) the simple and easy carrying cart for heavy articles of one of the present invention, the two ends of its external slide rail are separately installed with front rubber coating and rear rubber coating, when sliding support moves forward and backward, prevent sliding support to the strong shock of transport trolley support, play good buffering and position-limiting action;
(4) the simple and easy carrying cart for heavy articles of one of the present invention, its fixed pulley and movable pulley are sister block, adopt double pulleies unit system to substantially reduce the pulling force of steel rope, alleviate the application force of rotation manual capstan winch, weight is lifted lighter;
(5) the simple and easy carrying cart for heavy articles of one of the present invention, the rear cross of its sliding support is provided with drag hook, the rear cross of support is provided with quick-speed jigs accordingly with drag hook, quick-speed jigs matches with drag hook, utilizes quick-speed jigs sliding support can be fixed fast, when preventing load hook load-carrying, or during weight transhipment, rock before and after sliding support and collision is caused to workpiece, too increasing the stability of motion of transport trolley simultaneously, reducing collision noise;
(6) the simple and easy carrying cart for heavy articles of one of the present invention, its support is also provided with hand push frame, and convenient operation workman, to the operation of transport trolley, facilitates the use of transport trolley.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of simple and easy carrying cart for heavy articles of the present invention;
Fig. 2 is the structural representation of the sliding support in the present invention.
Label declaration in schematic diagram:
1, base; 2, universal caster wheel; 3, fixing supporting plate; 4, hinge; 5, movable supporting plate; 6, support; 7, load hook; 8, movable pulley; 9, steel rope; 10, fixed pulley; 11, external slide rail; 12, front rubber coating; 13, sliding support; 14, interior slide rail; 15, drag hook; 16, quick-speed jigs; 17, rear rubber coating; 18, hand winch; 19, hand push frame; 20, bottom roller; 21, upper roller.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
Composition graphs 1, the simple and easy carrying cart for heavy articles of one of the present embodiment, be mainly used in frequent lifting and the carrying of workshop heavier work pieces, mould, equipment etc., it mainly comprises base 1, the universal caster wheel 2 be located on base 1 four footing, the support 6 be fixed as one with base 1, be located at support 6 top and can the sliding support 13 of slide anteroposterior, the hand winch 18 being fixed on sliding support 13 rear portion, the assembly pulley being installed on sliding support 13 front portion and load hook 7 on the frame 6.Base 1 and support 6 are connected as framed structure, and sound construction is lightweight.Universal caster wheel 2 carries latching device, facilitates transport trolley parking.Hand winch 18 carries braking mechanism, the weight of its about 300Kg that can sling, and when weight lifts by crane, can control the lifting height of weight at any time, the convenient lifting controlling weight.Assembly pulley comprises fixed pulley 10 and movable pulley 8, fixed pulley 10 is installed on the anterior crossbeam of sliding support 13, movable pulley 8 is positioned at immediately below fixed pulley 10, steel cable 9 is drawn in hand winch 18, this steel rope 9 is fixed on sliding support 13 or fixed pulley 10 support after walking around fixed pulley 10 and movable pulley 8 successively, adopt dynamic fixed pulley group to achieve the minimizing at double of steel rope 9 pulling force, alleviate the power needed for weight lifting, load hook 7 is connected with movable pulley 8, for loading weight, fixed pulley 10 in the present embodiment and movable pulley 8 are sister block, fixed pulley 10 is walked around successively by the steel rope 9 of drawing in hand winch 18, movable pulley 8, fixed pulley 10, after movable pulley 8, be fixed on sliding support 13 or fixed pulley 10 support, adopt above-mentioned winding mode, in theory, only need 1/4 pulling force of weight weight weight can be sling, substantially reduce the pulling force of steel rope, alleviate the application force of rotation manual capstan winch, weight is lifted lighter, certainly, fixed pulley 10 and movable pulley 8 also can be many pulleys, the winding mode of pulley type and steel rope 9 can be selected according to the actual requirements.The rear portion of base 1 is provided with fixing supporting plate 3, front portion is provided with movable supporting plate 5, and this movable supporting plate 5 is hinged by hinge 4 with fixing supporting plate 3, load hook 7 is positioned at the top of movable supporting plate 5, movable supporting plate 5 can rotate around the hinge axis of hinge 4 to be dug, convenient inside weight being placed in transport trolley, facilitates weight to lift by crane.The simple and easy carrying cart for heavy articles of one of the present embodiment, after being dug by movable supporting plate 5, can be pushed into the position of weight, make weight be in the below of load hook 7 by transport trolley, because the inside of weight at transport trolley is lifted by crane, transport trolley is more firm, not easily tilts; Sling after weight, movable supporting plate 5 is turned on base 1, and mobile sliding support 13 makes weight be positioned at movable supporting plate 5 and the midway location of fixing supporting plate 3, is finally positioned on supporting plate by weight, realizes the steady carrying of weight; Utilize simple structure to achieve weight lifting and the dual-use function of transhipment, reduce the industrial injury incidence of collide with risk and a dead lift of weight in carrying, alleviate the labour intensity of workman; Meanwhile, structure is simple, easy to operate, with low cost, decreases the use of special hoisting equipment, meets the user demand of medium and small sized enterprises.
In order to improve non-deformability and the stability of motion of sliding support 13, increase the load capacity of transport trolley, make sliding support 13 flexible more smooth and easy, increase the service life, in the present embodiment, the top of support 6 is parallel is fixed with two external slide rails 11 (shown in Figure 1), and the shape of cross section of external slide rail 11 is " Qian " font, and the opening direction of two external slide rails 11 is relative; The both sides of sliding support 13 are separately installed with interior slide rail 14 (as shown in Figure 2), interior slide rail 14 is installed in external slide rail 11, and the rear and front end of interior slide rail 14 is respectively provided with a bottom roller that can roll in the lower wall of external slide rail 11 20 and a upper roller 21 that can roll on the upper side wall of external slide rail 11, utilize upper roller 21 and bottom roller 20 to roll on the top and bottom sidewall of external slide rail 11, sliding support 13 is moved more steadily smooth and easy; Upper roller 21 in the present embodiment and bottom roller 20 are antifriction-bearing box, and can provide larger bearing capacity, and friction of rolling is little, noise is little.In addition, in order to prevent the strong shock of sliding support 13 pairs of transport trolley supports 6, the two ends of the external slide rail 11 in the present embodiment are separately installed with front rubber coating 12 and rear rubber coating 17, serve good buffering and spacing effect.Also have, in the present embodiment, the rear cross of sliding support 13 is provided with drag hook 15, the rear cross of support 6 is provided with quick-speed jigs 16 accordingly with drag hook 15, quick-speed jigs 16 matches with drag hook 15, for fixing sliding support 13, utilize quick-speed jigs 16 sliding support 13 can be fixed fast, when preventing load hook 7 load-carrying, or during weight transhipment, rock before and after sliding support 13 and collision is caused to workpiece, too increasing the stability of motion of transport trolley simultaneously, reducing collision noise.In addition, support 6 is also provided with hand push frame 19, convenient operation workman, to the operation of transport trolley, facilitates the use of transport trolley.
The simple and easy carrying cart for heavy articles of one of the present embodiment, during use, first upwards digs movable supporting plate 5, makes transport trolley inside form a loading space, transport trolley is pushed into weight place to be handled, makes weight be arranged in above-mentioned loading space; Then moving sliding support 13 makes load hook 7 be positioned at the top of weight, and unclamps the brake of hand winch 18, is hung over by weight on load hook 7; Rotation manual capstan winch 18 take-up, make weight be raised up to suitable height, then movable supporting plate 5 upset set level, mobile sliding support 13 makes weight be positioned at the center of movable supporting plate 5 and fixing supporting plate 3, and slowly fall weight, weight can be shifted onto the position of needs; After arriving assigned address, again utilize load hook 7 to be sling by weight, movable supporting plate 5 is upwards dug, then that weight is extrapolated, and slowly fall, complete the unloading of weight.Weight lifting in the present embodiment and the equal steady and smooth of transport process, avoid weight and rock the phenomenon generations such as collision, simultaneously simple to operate, safe and reliable.
The simple and easy carrying cart for heavy articles of one of the present invention, utilizes simple structure to achieve weight lifting and the dual-use function of transhipment, reduces the industrial injury incidence of collide with risk and a dead lift of weight in carrying, alleviate the labour intensity of workman; Meanwhile, structure of the present invention is simple, easy to operate, with low cost, decreases the use of special hoisting equipment, meets the user demand of medium and small sized enterprises.
Below be schematically described the present invention and embodiment thereof, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should protection scope of the present invention be belonged to.
Claims (6)
1. a simple and easy carrying cart for heavy articles, it is characterized in that: comprise base (1), be located at the universal caster wheel (2) on base (1) four footing, the support (6) be fixed as one with base (1), be located at support (6) top and can at the sliding support (13) of the upper slide anteroposterior of support (6), be fixed on the hand winch (18) at sliding support (13) rear portion, be installed on the anterior assembly pulley of sliding support (13) and load hook (7), described assembly pulley comprises fixed pulley (10) and movable pulley (8), steel cable (9) is drawn in described hand winch (18), this steel rope (9) is fixed on after walking around fixed pulley (10) and movable pulley (8) successively on sliding support (13) or fixed pulley (10) support, described load hook (7) is connected with movable pulley (8), the rear portion of described base (1) is provided with fixing supporting plate (3), and front portion is provided with movable supporting plate (5), and this movable supporting plate (5) is hinged with fixing supporting plate (3), described load hook (7) is positioned at the top of movable supporting plate (5).
2. the simple and easy carrying cart for heavy articles of one according to claim 1, it is characterized in that: the top of described support (6) is parallel is fixed with two external slide rails (11), the shape of cross section of described external slide rail (11) is " Qian " font, and the opening direction of two external slide rails (11) is relative; The both sides of described sliding support (13) are separately installed with interior slide rail (14), described interior slide rail (14) is installed in external slide rail (11), and the rear and front end of described interior slide rail (14) is respectively provided with a bottom roller (20) that can roll in the lower wall of external slide rail (11) and a upper roller (21) that can roll on the upper side wall of external slide rail (11).
3. the simple and easy carrying cart for heavy articles of one according to claim 2, it is characterized in that: the two ends of described external slide rail (11) are separately installed with front rubber coating (12) and rear rubber coating (17), for playing buffering and spacing effect.
4. the simple and easy carrying cart for heavy articles of one according to claim 1 or 2 or 3, is characterized in that: described fixed pulley (10) and movable pulley (8) are sister block.
5. the simple and easy carrying cart for heavy articles of one according to claim 4, it is characterized in that: the rear cross of described sliding support (13) is provided with drag hook (15), the rear cross of described support (6) is provided with quick-speed jigs (16) accordingly with drag hook (15), described quick-speed jigs (16) matches with drag hook (15), for fixing sliding support (13).
6. the simple and easy carrying cart for heavy articles of one according to claim 5, is characterized in that: described support (6) is also provided with hand push frame (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507702.9A CN104444877B (en) | 2014-09-28 | 2014-09-28 | A kind of simple carrying cart for heavy articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507702.9A CN104444877B (en) | 2014-09-28 | 2014-09-28 | A kind of simple carrying cart for heavy articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104444877A true CN104444877A (en) | 2015-03-25 |
| CN104444877B CN104444877B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410507702.9A Active CN104444877B (en) | 2014-09-28 | 2014-09-28 | A kind of simple carrying cart for heavy articles |
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| CN (1) | CN104444877B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035962A (en) * | 2015-09-10 | 2015-11-11 | 无锡市运达机械有限公司 | Manual type crane cab |
| CN106113134A (en) * | 2016-07-26 | 2016-11-16 | 浙江川洋家居股份有限公司 | A kind of removable scissor Handling device of sponge |
| CN106629388A (en) * | 2017-01-16 | 2017-05-10 | 曹振迎 | Brick lifting device |
| CN107285218A (en) * | 2017-08-17 | 2017-10-24 | 宿松县成义家庭农场 | A kind of mechanical hoisting machine |
| CN107827005A (en) * | 2017-10-24 | 2018-03-23 | 桐城市天泰农机服务专业合作社 | A kind of agricultural machinery special transport machine |
| CN108178074A (en) * | 2016-08-15 | 2018-06-19 | 白天海 | A kind of installation equipment vehicle |
| CN114671133A (en) * | 2022-03-01 | 2022-06-28 | 安徽经川筑工科技有限公司 | Multi-layer stacking assembly of multifunctional combined lifting appliance |
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| GB2222558A (en) * | 1988-08-27 | 1990-03-14 | Edward Taylor | Load-handling trolley |
| KR100859164B1 (en) * | 2007-07-03 | 2008-09-19 | 내일시스템주식회사 | Carrier with cassette for top chassis |
| CN201381177Y (en) * | 2009-03-13 | 2010-01-13 | 东莞市科绿盛实业有限公司 | Board lifting machine for high density wallboard |
| CN202138956U (en) * | 2011-05-31 | 2012-02-08 | 天津二十冶建设有限公司 | Hoisting and installing device of electrical disc cabinet |
| CN102765670A (en) * | 2012-07-17 | 2012-11-07 | 吴月伟 | Combined overhauling and carrying vehicle |
| CN102992197A (en) * | 2012-12-05 | 2013-03-27 | 宁夏电力公司检修公司 | Electrode address cover plate lifting device for grounding electrode |
| CN203681596U (en) * | 2013-12-12 | 2014-07-02 | 茆其华 | Brick transporting vehicle |
| CN203805942U (en) * | 2014-04-24 | 2014-09-03 | 山东森源新能技术有限公司 | Motor installation vehicle |
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| GB2222558A (en) * | 1988-08-27 | 1990-03-14 | Edward Taylor | Load-handling trolley |
| KR100859164B1 (en) * | 2007-07-03 | 2008-09-19 | 내일시스템주식회사 | Carrier with cassette for top chassis |
| CN201381177Y (en) * | 2009-03-13 | 2010-01-13 | 东莞市科绿盛实业有限公司 | Board lifting machine for high density wallboard |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035962A (en) * | 2015-09-10 | 2015-11-11 | 无锡市运达机械有限公司 | Manual type crane cab |
| CN106113134A (en) * | 2016-07-26 | 2016-11-16 | 浙江川洋家居股份有限公司 | A kind of removable scissor Handling device of sponge |
| CN108178074A (en) * | 2016-08-15 | 2018-06-19 | 白天海 | A kind of installation equipment vehicle |
| CN106629388A (en) * | 2017-01-16 | 2017-05-10 | 曹振迎 | Brick lifting device |
| CN107285218A (en) * | 2017-08-17 | 2017-10-24 | 宿松县成义家庭农场 | A kind of mechanical hoisting machine |
| CN107827005A (en) * | 2017-10-24 | 2018-03-23 | 桐城市天泰农机服务专业合作社 | A kind of agricultural machinery special transport machine |
| CN114671133A (en) * | 2022-03-01 | 2022-06-28 | 安徽经川筑工科技有限公司 | Multi-layer stacking assembly of multifunctional combined lifting appliance |
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| Publication number | Publication date |
|---|---|
| CN104444877B (en) | 2016-08-17 |
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Effective date of registration: 20181130 Address after: 213017 Room 938, Tianning Science Promotion Center, 256 Zhulin North Road, Tianning District, Changzhou City, Jiangsu Province Patentee after: Changzhou Dongji Road International Trade Co., Ltd. Address before: 213022 Wushan Road, Xinbei District, Changzhou, Jiangsu Province, No. 1 Patentee before: Changzhou Polytechnic College |
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