CN111252698A - Material lifting machine for construction - Google Patents
Material lifting machine for construction Download PDFInfo
- Publication number
- CN111252698A CN111252698A CN202010278546.9A CN202010278546A CN111252698A CN 111252698 A CN111252698 A CN 111252698A CN 202010278546 A CN202010278546 A CN 202010278546A CN 111252698 A CN111252698 A CN 111252698A
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- China
- Prior art keywords
- fixed
- hinge
- bottom plate
- motor
- lifting machine
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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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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000009435 building construction Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 10
- 241001330002 Bambuseae Species 0.000 claims description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- 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
- B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
-
- 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
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
-
- 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
- B66F7/0633—Mechanical arrangements not covered by the following subgroups
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention belongs to the technical field of building construction equipment, and particularly relates to a material elevator for building construction, which comprises a horizontally arranged rectangular bottom plate, a rectangular supporting plate, a driving mechanism and a fixing assembly, wherein the driving mechanism is arranged on the horizontally arranged rectangular bottom plate; the bottom plate is provided with a double-lug seat I, the double-lug seat I is hinged to one end of a hinge rod I through a pin shaft, and the other end of the double-lug seat I is hinged to one end of a hinge rod II through a hinge shaft; the bottom surface of the supporting plate is provided with a double-lug seat II, the other end of the hinge rod II is hinged with the double-lug seat II through a pin shaft, and the centers of the two double-lug seats I are provided with motor grooves; the driving mechanism comprises two sliding rods and a motor, the driving mechanism is respectively connected with a hinge seat on the inner side of the hinge rod I through one end of each of the two sliding rods, and the motor is upwards arranged in a motor groove; the fixing component comprises a fixing cylinder with an open middle part on the outer side surface, and the fixing component is symmetrically arranged on the two side surfaces of the bottom plate through the fixing cylinder. The device solves the problems of complex structure, high cost, complex operation and large volume of the existing hoister, and can be widely applied to various construction places.
Description
Technical Field
The invention belongs to the technical field of building construction equipment, and particularly relates to a material elevator for building construction.
Background
Along with the development of the building market, the number of the material elevators is increased, the existing material elevators are various and have different quality, most elevator products are self-made by construction enterprises, and production factories lack production experience, technology and equipment and cannot ensure the product quality; the hoister is mainly used for transporting materials from a low position to a high position, and is widely applied due to the fact that construction efficiency can be remarkably improved, and labor intensity of workers is reduced. However, the existing hoister has the disadvantages of complex structure, complex operation, large volume, inflexible use and high cost, and is not suitable for popularization and application.
Therefore, there is a need to improve upon the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a material hoister for building construction, which can solve the problems of complex structure, high cost, complex operation, large volume and inconvenient use of the existing hoister.
The technical scheme adopted by the invention is as follows:
a material hoister for building construction comprises a horizontally placed rectangular bottom plate, a rectangular supporting plate, a driving mechanism and a fixing assembly; the top surfaces of four corners of the bottom plate are respectively provided with a double-lug seat I with an upward opening, each double-lug seat I is hinged with one end of each hinge rod I through a pin shaft, and the other end of each hinge rod I is hinged with one end of each hinge rod II through a hinge shaft; the bottom surfaces of four corners of the supporting plate are respectively provided with a two-ear seat II with a downward opening, the other ends of the four hinge rods II are respectively hinged with the four two-ear seats II through hinge pins, and the centers of two pairs of two-ear seats I on the long edge of the bottom plate are respectively provided with a motor groove; the driving mechanism comprises slide rods and a motor, a hinge seat is arranged on the inner side of the top of the hinge rod I, the driving mechanism is respectively connected with two hinge seats on the long side through one end of each of the two slide rods, and the output end of the motor is upwards arranged in a motor groove; the fixing component comprises a fixing cylinder with an open middle part on the outer side surface, and the fixing component is symmetrically arranged on the two side surfaces of the bottom plate through the fixing cylinder.
The driving mechanism further comprises a fixed long plate, sliding holes with certain length are formed in the two end faces of the fixed long plate in a concave mode, springs are installed at the innermost ends of the sliding holes in the two sides, the other ends of the two sliding rods are respectively inserted into the corresponding sliding holes in a sliding mode, the ends of the two sliding rods are fixedly connected with the springs in an inserting mode, a threaded cylinder is installed in the center of the upper face and the lower face of the fixed long plate in a penetrating mode, a threaded rod is coaxially connected to the output end of the outer side of the coupler of the motor, the top of the threaded rod penetrates through.
The fixed subassembly still includes the fixed bolster, the uncovered interior installation card at fixed bobbin middle part has the pivot, the pivot center is equipped with and runs through the open T shaped plate of fixed bobbin lateral surface, T shaped plate lateral surface passes through fixed bolster and fixed thread section of thick bamboo lateral surface rigid coupling, the inboard spiral of fixed thread section of thick bamboo runs through there is fixed threaded rod, the fixed threaded rod top is equipped with manual runner, and the bottom is equipped with the toper fixing base.
The fixed bolster passes through the brace combination of reinforced bar by down tube and horizontal pole and makes up into triangle-shaped, T shaped plate lateral surface top passes through down tube and fixed thread section of thick bamboo lateral surface top rigid coupling, T shaped plate lateral surface bottom passes through horizontal pole and fixed thread section of thick bamboo lateral surface bottom rigid coupling, horizontal pole top surface inner end passes through reinforced bar and down tube middle part rigid coupling.
The movable wheel support is installed at four corners of the bottom surface of the bottom plate, is in a U-shaped plate shape with a downward opening, and is hinged with the movable wheel through a pin shaft.
The two ends of the top surface of the supporting plate are longitudinally provided with a baffle plate, and an open material box is arranged between the two baffle plates on the top surface of the supporting plate.
The motor is connected with an external power supply through a power line.
The number of the fixed assemblies is four, and two side faces of the bottom plate are respectively provided with two fixed assemblies.
The driving mechanisms are provided with two groups.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the threaded rod is adopted to drive the threaded cylinder and the fixed long plate to lift, and further the hinge rod I is driven to be matched with the hinge rod II to drive the support plate to lift, so that the material box can be quickly lifted, the structure is simple, and the production is convenient.
2. According to the invention, the manual rotating wheel drives the fixed seat to descend by rotating the fixed threaded rod under the action of the fixed threaded cylinder, and the stability of the bottom plate in the lifting process of the material box is improved by matching with the use of the fixed assembly.
3. The design of the wheels of the invention facilitates the movement of the hoister and has wider application range.
In conclusion, the lifting device is simple in structure, convenient to use, small in size, small in occupied area, low in cost and suitable for popularization and application, and can quickly lift goods to a high place.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the driving mechanism of the present invention;
FIG. 3 is a schematic view of the fixing assembly of the present invention;
fig. 4 is a top view of the base plate structure of the present invention.
Wherein: the device comprises a base plate 1, a support plate 2, a driving mechanism 3, a fixing assembly 4, a double-lug seat I5, a hinge rod I6, a hinge rod II 7, a double-lug seat II 8, a motor groove 9, a hinge seat 10, a movable wheel support 11, a movable wheel 12, a baffle 13, a material box 14, a sliding rod 31, a motor 32, a fixed long plate 33, a sliding hole 34, a spring 35, a threaded cylinder 36, a threaded rod 37, a stop dog 41, a fixed cylinder 41, a fixed support 42, a rotating shaft 43, a T-shaped plate 44, a fixed threaded cylinder 45, a fixed threaded rod 46, a manual rotating wheel 47, a conical fixed seat 48, an inclined rod 421, a transverse rod 423 and a reinforcing rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a material elevator for building construction comprises a horizontally placed rectangular bottom plate 1, a rectangular support plate 2, a driving mechanism 3 and a fixing component 4; the top surfaces of four corners of the bottom plate 1 are respectively provided with a double-lug seat I5 with an upward opening, each double-lug seat I5 is hinged with one end of each hinge rod I6 through a pin shaft, and the other end of each hinge rod I6 is hinged with one end of each hinge rod II 7 through a hinge shaft; the bottom surfaces of four corners of the supporting plate 2 are respectively provided with a two-ear seat II 8 with downward openings, the other ends of the four hinge rods II 7 are respectively hinged with the four two-ear seats II 8 through pin shafts, and the centers of two pairs of two-ear seats I5 on the long edge of the bottom plate are respectively provided with a motor slot 9; the double-lug seat I5, the double-lug seat II 8, the hinge rod I6 and the hinge rod II 7 jointly form a supporting movable part of the elevator; the driving mechanism 3 comprises sliding rods 31 and a motor 32, a hinge seat 10 is arranged on the inner side of the top of the hinge rod I6, the driving mechanism 3 is respectively connected with two hinge seats 10 on the long side through one end of each of the two sliding rods 31, and the output end of the motor 32 is upwards arranged in a motor groove 9; the fixing component 4 comprises a fixing cylinder 41 with an open middle part on the outer side surface, and the fixing component 4 is symmetrically arranged on the two side surfaces of the bottom plate 1 through the fixing cylinder 41.
The driving mechanism 3 further comprises a fixed long plate 33, sliding holes 34 with a certain length are recessed in two end faces of the fixed long plate 33, springs 35 are mounted at the innermost ends of the sliding holes 34 on the two sides, the other ends of the two sliding rods 31 are respectively inserted into the corresponding sliding holes 34 in a sliding mode, the ends of the two sliding rods are fixedly connected with the springs 35, threaded cylinders 36 are mounted in the centers of the upper plate surface and the lower plate surface of the fixed long plate 33 in a penetrating mode, threaded rods 37 are coaxially connected to the output ends of the outer sides of the couplings of the motors 32, the tops of the threaded rods 37 spirally penetrate through the threaded cylinders 36, and stop blocks 38 are arranged; the combined action of the driving mechanism 3 and the movable supporting rod enables the elevator to lift up and down.
The fixing component 4 further comprises a fixing support 42, a rotating shaft 43 is mounted and clamped in an opening in the middle of the fixing barrel 41, a T-shaped plate 44 penetrating through an opening in the outer side face of the fixing barrel is arranged in the center of the rotating shaft 43, the outer side face of the T-shaped plate 44 is fixedly connected with the outer side face of a fixing thread barrel 45 through the fixing support 42, a fixing threaded rod 46 penetrates through the inner side of the fixing thread barrel 45 in a spiral mode, a manual rotating wheel 47 is arranged at the top end of the fixing threaded rod 46, and a conical fixing seat 48; the fixing component 4 is screwed well and fixed when in use and is folded when not in use.
The fixed support 42 is formed by connecting and supporting an inclined rod 421 and a cross rod 422 through a reinforcing rod 423 to form a triangle, the top end of the outer side surface of the T-shaped plate 44 is fixedly connected with the top end of the outer side surface of the fixed thread cylinder 45 through the inclined rod 421, the bottom end of the outer side surface of the T-shaped plate 44 is fixedly connected with the bottom end of the outer side surface of the fixed thread cylinder 45 through the cross rod 422, and the inner end of the top surface of the cross rod 422 is fixedly connected with the middle.
Two ends of the top surface of the supporting plate 2 are longitudinally provided with a baffle 13, and an open material box 14 is arranged between the two baffles 13 on the top surface of the supporting plate 2.
The motor 32 is connected with an external power supply through a power line.
The number of the fixed assemblies 4 is four, and two side faces of the bottom plate 1 are respectively provided with two.
The driving mechanisms 3 are provided with two groups.
When the invention is used, firstly, the bottom plate 1 and the movable wheels 12 on the bottom surface are pushed to move to the designated positions, the fixing components 4 on the two sides of the bottom plate 1 are opened, the T-shaped plate 44 drives the rotating shaft 43 to rotate in the fixing barrel 41, the manual rotating wheel 47 is rotated to drive the fixing threaded rod 46, and under the action of the fixing threaded barrel 45, the fixing seat 48 is driven to descend, so that the bottom surfaces of the four fixing seats 48 on the two sides of the bottom plate 1 are abutted against the ground; then, materials are put into the material box 14, a motor shaft and a coupler of the electric motor 32 are controlled to rotate, so that a threaded rod 37 is driven to rotate, a threaded cylinder 36 and a fixed long plate 33 are driven to ascend in a spiral mode, a sliding rod 31 is driven to compress a spring 35 along a sliding hole 34, a hinge rod I6 is driven to cooperate with the hinge rod II 7, and the supporting plate 2 is driven to ascend and descend; and finally, taking down the materials from a high position by a worker, controlling the supporting plate 2 to fall to the original position, continuously adding the materials into the material box 13, and repeating the steps.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (9)
1. The utility model provides a material lifting machine for construction which characterized in that: comprises a rectangular bottom plate (1), a rectangular supporting plate (2), a driving mechanism (3) and a fixing component (4) which are horizontally arranged; the top surfaces of four corners of the bottom plate (1) are respectively provided with a double-lug seat I (5) with an upward opening, each double-lug seat I (5) is hinged with one end of each of four hinge rods I (6) through a pin shaft, and the other end of each hinge rod I (6) is hinged with one end of each hinge rod II (7) through a hinge shaft; the bottom surfaces of four corners of the supporting plate (2) are respectively provided with a two-ear seat II (8) with downward openings, the other ends of the four hinge rods II (7) are respectively hinged with the four two-ear seats II (8) through pin shafts, and the centers of two pairs of two-ear seats I (5) on the long edge of the bottom plate are respectively provided with a motor groove (9); the driving mechanism (3) comprises sliding rods (31) and a motor (32), a hinge seat (10) is arranged on the inner side of the top of the hinge rod I (6), the driving mechanism (3) is respectively connected with two hinge seats (10) on the long side through one end of each of the two sliding rods (31), and the output end of the motor (32) is upwards installed in a motor groove (9); the fixing component (4) comprises a fixing cylinder (41) with an open middle part of the outer side surface, and the fixing component (4) is symmetrically arranged on two side surfaces of the bottom plate (1) through the fixing cylinder (41).
2. The material lifting machine for building construction as claimed in claim 1, characterized in that: actuating mechanism (3) are still including fixed long slab (33), fixed long slab (33) both ends face is all sunken to have slide opening (34) of certain length, spring (35) are installed to both sides slide opening (34) innermost, two other one ends of slide bar (31) slide respectively and insert and establish in corresponding slide opening (34) and end and spring (35) rigid coupling, face center runs through and installs threaded section of thick bamboo (36) about fixed long slab (33), the coaxial hookup of shaft coupling outside output of motor (32) has threaded rod (37), just threaded rod (37) top spiral runs through threaded section of thick bamboo (36), threaded rod (37) top is equipped with dog (38).
3. The material lifting machine for building construction as claimed in claim 1, characterized in that: fixed subassembly (4) still include fixed bolster (42), the uncovered interior installation card at fixed cylinder (41) middle part has pivot (43), pivot (43) center is equipped with and runs through the open T shaped plate (44) of fixed cylinder lateral surface, T shaped plate (44) lateral surface passes through fixed bolster (42) and fixed thread section of thick bamboo (45) lateral surface rigid coupling, fixed thread section of thick bamboo (45) inboard spiral is run through has fixed threaded rod (46), fixed threaded rod (46) top is equipped with manual runner (47), and the bottom is equipped with toper fixing base (48).
4. The material lifting machine for building construction as claimed in claim 3, characterized in that: fixed bolster (42) are supported by the joint of down tube (421) and horizontal pole (422) through reinforcing rod (423) and are made up into triangle-shaped, T shaped plate (44) lateral surface top is through down tube (421) and fixed screw thread section of thick bamboo (45) lateral surface top rigid coupling, T shaped plate (44) lateral surface bottom is through horizontal pole (422) and fixed screw thread section of thick bamboo (45) lateral surface bottom rigid coupling, horizontal pole (422) top surface inner end is through reinforcing rod (423) and down tube (421) middle part rigid coupling.
5. The material lifting machine for building construction as claimed in claim 1, characterized in that: movable wheel support (11) are installed to four corners of bottom plate (1) bottom surface, movable wheel support (11) are the U-shaped platelike that the opening is down, movable wheel support (11) are articulated through round pin axle and movable wheel (12).
6. The material lifting machine for building construction as claimed in claim 1, characterized in that: the material storage box is characterized in that baffle plates (13) are longitudinally arranged at two ends of the top surface of the supporting plate (2), and an open material box (14) is arranged between the two baffle plates (13) on the top surface of the supporting plate (2).
7. The material lifting machine for building construction as claimed in claim 1, characterized in that: the motor (32) is connected with an external power supply through a power line.
8. The material lifting machine for building construction as claimed in claim 1, characterized in that: the number of the fixed assemblies (4) is four, and the number of the two side faces of the bottom plate (1) is two.
9. The material lifting machine for building construction as claimed in claim 1, characterized in that: two groups of driving mechanisms (3) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010278546.9A CN111252698A (en) | 2020-04-10 | 2020-04-10 | Material lifting machine for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010278546.9A CN111252698A (en) | 2020-04-10 | 2020-04-10 | Material lifting machine for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111252698A true CN111252698A (en) | 2020-06-09 |
Family
ID=70943592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010278546.9A Pending CN111252698A (en) | 2020-04-10 | 2020-04-10 | Material lifting machine for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111252698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183926A (en) * | 2021-05-10 | 2021-07-30 | 太原钢运物流股份有限公司 | Foldable multi-section type pneumatic support leg and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206814343U (en) * | 2017-06-23 | 2017-12-29 | 江苏海宇机械有限公司 | A kind of hydraulic elevator |
| CN208135798U (en) * | 2018-05-03 | 2018-11-23 | 广东电网有限责任公司 | Ascending operation platform for power distribution network construction |
| CN109229769A (en) * | 2018-08-22 | 2019-01-18 | 郭志山 | A kind of firing inside ceramic vase transport device with defencive function |
| CN210048437U (en) * | 2019-06-26 | 2020-02-11 | 万全重工（常州）机械有限公司 | Guide rail type hydraulic elevator |
| CN211971640U (en) * | 2020-04-10 | 2020-11-20 | 山西四建集团有限公司 | Material lifting machine for construction |
-
2020
- 2020-04-10 CN CN202010278546.9A patent/CN111252698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206814343U (en) * | 2017-06-23 | 2017-12-29 | 江苏海宇机械有限公司 | A kind of hydraulic elevator |
| CN208135798U (en) * | 2018-05-03 | 2018-11-23 | 广东电网有限责任公司 | Ascending operation platform for power distribution network construction |
| CN109229769A (en) * | 2018-08-22 | 2019-01-18 | 郭志山 | A kind of firing inside ceramic vase transport device with defencive function |
| CN210048437U (en) * | 2019-06-26 | 2020-02-11 | 万全重工（常州）机械有限公司 | Guide rail type hydraulic elevator |
| CN211971640U (en) * | 2020-04-10 | 2020-11-20 | 山西四建集团有限公司 | Material lifting machine for construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183926A (en) * | 2021-05-10 | 2021-07-30 | 太原钢运物流股份有限公司 | Foldable multi-section type pneumatic support leg and using method thereof |
| CN113183926B (en) * | 2021-05-10 | 2022-11-22 | 太原钢运物流股份有限公司 | Foldable multi-section type pneumatic support leg and using method thereof |
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