CN109292666B - Portable crane structure - Google Patents
Portable crane structure Download PDFInfo
- Publication number
- CN109292666B CN109292666B CN201811328738.5A CN201811328738A CN109292666B CN 109292666 B CN109292666 B CN 109292666B CN 201811328738 A CN201811328738 A CN 201811328738A CN 109292666 B CN109292666 B CN 109292666B
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- adjusting
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- lifting
- head
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/26—Other details, e.g. housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Jib Cranes (AREA)
Abstract
A portable crane structure comprises a crane base, a vertical rod, a suspension rod, a power unit, a hoisting steel wire, a hoisting head, a lifting mechanism and a frame steel wire; the upright rod comprises an upright rod seat, a bottom upright rod, an intermediate sleeve and an inner sleeve, the upright rod seat is fixed on the machine base, the bottom upright rod is inserted and seated in the upright rod seat, the intermediate sleeve is sleeved on the bottom upright rod, the inner sleeve is sleeved in the bottom upright rod, and the top end of the bottom upright rod is provided with a mounting lifting mechanism; the bottom of the middle sleeve is provided with a suspender through a suspender seat, and the top end of the suspender is provided with a hoisting hook head. One end of the hoisting steel wire is connected with the winch, and the other end of the hoisting steel wire penetrates through the guide wheel, the hoisting head arbor wheel, the connecting circular chuck and the lifting hook. The lifting device is simple in structure, convenient to carry and use, firm to install and safe and convenient to lift.
Description
Technical Field
The invention relates to the related technology in the field of construction machinery, in particular to a portable crane structure in hoisting machinery for construction.
Background
At present, the structure of the crane is various, and as for the crane for construction, particularly for a simple crane used for decoration and reconstruction of a building with a built frame or an old building, a crane with a lifting rod and a hoisting hoist or a crane with an electric hoist is mostly used at present; when the lifting device is used, the lifting rod is fixed between the floor and the roof in a room through the vertical rod, so that the lifting head extends out of the window, and is pulled into the room after goods are lifted, thereby completing the lifting work. The simple crane has the defects that when the upright rod is fixed between the indoor floor and the roof, the fixation is not stable enough, and the upright rod is far away from the window, so that the crane is inconvenient to lift. Especially, the defects that a hoisting steel wire is broken or a hoisting rod is bent frequently when the hoisting rod is hoisted to the highest point can be caused. In the prior art, the lifting rod and the vertical rod can rotate at a certain angle on the horizontal plane, but the vertical angle of the lifting rod relative to the vertical rod cannot be changed, so that the defect that when the lifting rod is lifted to a required height, a lifted object is not convenient to pull into a room exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and design a portable crane structure which is simple in structure, convenient to carry and use, firm to install and safe and convenient to lift.
The purpose of the invention can be realized by the following technical scheme that the portable crane structure comprises a crane base 1, a vertical rod 2, a suspender 3, a power unit 4, a hoisting steel wire 5, a hoisting head 6, a lifting mechanism 7 and a frame steel wire 8; the invention is a triangular frame structure composed of upright rods 2, hanger rods 3 and frame steel wires 8. The upright rod 2 comprises an upright rod seat 20, a bottom upright rod 21, a middle sleeve 22 and an inner sleeve 23, wherein the upright rod seat 20 is fixed on the machine base 1, the bottom upright rod 21 is inserted and seated in the upright rod seat 20, the middle sleeve 22 is sleeved on the bottom upright rod 21, the inner sleeve 23 is sleeved in the bottom upright rod 21, and the top end of the bottom upright rod 21 is an inclined opening 210 with a low front end and a high rear end; a lifting mechanism mounting shaft seat 211 for mounting a lifting mechanism 7 is arranged at the top end of the bottom upright rod 21, and a shaft seat hole 2111 and a shaft seat clamping groove 2112 are arranged on the lifting mechanism mounting shaft seat 211; the top mounting seat 230 is arranged at the top of the inner sleeve 23; the lifting mechanism 7 comprises a lifting clamping plate 70, an adjusting plate 71 and an adjusting handle device 72, wherein the lifting clamping plate 70 comprises a clamping plate frame 700, a clamping plate frame cavity 701 and a clamping plate frame handle 702; the adjusting plate 71 comprises an adjusting plate frame 710, an adjusting plate frame cavity 711 and an adjusting frame edge shaft 712; the adjusting handle device 72 comprises an adjusting head 720 and an adjusting handle 721 arranged at the rear end thereof, wherein the front end of the adjusting head 720 is provided with an adjusting bayonet 722, and the rear section of the adjusting head 720 is provided with a handle shaft hole 723; the adjusting handle device 72 passes through the shaft seat hole 2111 and the handle shaft hole 723 through the adjusting pin 2110 and is arranged on the lifting mechanism mounting shaft seat 211; the inner sleeve 23 penetrates through the clamping plate frame cavity 701 and the adjusting plate frame cavity 711, and enables the corresponding edge of the clamping plate frame 700 provided with the clamping plate frame handle 702 to be movably installed in the shaft seat clamping groove 2112 in a matching manner, and enables the adjusting plate 71 to be movably installed in the adjusting bayonet 722 in a matching manner; a hanging rod seat 220 is arranged at the bottom of the middle sleeve 22, a hanging rod seat pin shaft hole 221 is arranged on the hanging rod seat 220, the bottom end of the hanging rod 3 is connected with the hanging rod seat 220 through a hanging rod pin shaft 30, and a lifting head 6 is arranged at the top end of the hanging rod 3; the hoisting head 6 comprises a hoisting head body 60, a hoisting head arbor wheel 62 arranged in the hoisting head body 60 through a pin shaft 61 and a hoisting head limiting piece 63 arranged at the bottom of the hoisting head body 60; a guide wheel seat 222 is arranged at the top of the middle sleeve 22, and a guide wheel 224 is arranged on the guide wheel seat 222 through a guide wheel pin shaft 223; the power unit 4 is arranged on the crane base 1 and comprises a winch 40, a motor 41 and a gearbox 42; one end of the hoisting steel wire 5 is connected with the winch 40, and the other end of the hoisting steel wire passes through the guide wheel 224 and the hoisting head arbor wheel 62 to be connected with the circular chuck 52 and the lifting hook 51, and the circular chuck is fixed on the steel wire rope close to the lifting hook 51.
In the portable crane structure, the upright rod seat 20, the bottom upright rod 21 and the inner sleeve 23 are square tubes or polygonal tubes, and the middle sleeve 22 is a circular tube; the bottom end and the top end of the middle sleeve 22 are respectively provided with a square-circle conversion piece 225, the square-circle conversion piece 225 comprises a conversion chassis 2250 and a conversion chassis cover 2251, the middle part of the conversion chassis 2250 is provided with a square through hole 2252, and a bearing capable of enabling the conversion chassis 2250 and the conversion chassis cover 2251 to rotate relatively is arranged between the two.
In order to adjust the front and back movement of the bottom upright rod 21, the length of the front and back inner cavity of the upright rod seat 20 is greater than the length of the front and back outer diameter of the bottom upright rod 21, and front and back walls of the upright rod seat 20 are respectively provided with upright rod front and back adjusting screws 201.
In order to adjust the height of the middle casing 22, the bottom upright rod 21 is sleeved with an adjusting sleeve 212, the side wall of the adjusting sleeve 212 is provided with a through fine adjusting hole 2120, the side wall of the bottom upright rod 21 is provided with a through height adjusting hole 213 and a height adjusting bolt 214 capable of being inserted into the fine adjusting hole 2120 and the corresponding height adjusting hole 213.
In the portable crane structure, a casing steel wire seat ring 228 is provided on the top of the middle casing 22, a casing steel wire seat ring 31 is provided on the top end of the boom 3, and a frame steel wire 8 is provided between the casing steel wire seat ring 228 and the casing steel wire seat ring 31.
In order to limit the relative rotation between the middle sleeve 22 and the bottom upright 21, a positioning adjusting screw 227 is disposed on a side wall of the middle sleeve 22.
In the portable crane structure, the rear end of the bottom of the crane base 1 is provided with a roller 10.
In the portable crane structure, a pushing handle 11 is arranged at the rear end of the top of the crane base 1.
In the portable crane structure, the limiting block 50 is provided with a through steel wire perforation 500, and a limiting block adjusting hole 501 is arranged perpendicular to the steel wire perforation 500.
In the portable crane structure, a reinforcing mounting hole 2300 is arranged at the vertical edge of the top mounting base 230 arranged at the top of the inner sleeve 23.
The invention has the technical advantages of simple structure, convenient use and carrying, firm installation and safe and convenient hoisting.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged perspective view of the bottom upright and inner sleeve sleeving structure of the present invention;
FIG. 3 is a schematic view of a partial three-dimensional structure of the lifting mechanism of the present invention mounted on a vertical rod;
FIG. 4 is a schematic perspective view of an installation shaft seat of the lifting mechanism of the present invention;
FIG. 5 is an enlarged schematic view of the three-dimensional structure of the lifting pallet of the present invention;
FIG. 6 is a schematic perspective view of an adjustment plate according to the present invention;
FIG. 7 is a schematic perspective view of an adjustment handle assembly of the present invention;
FIG. 8 is a schematic perspective view of a lifting head according to the present invention;
FIG. 9 is a schematic perspective view of the square-round conversion member of the present invention;
FIG. 10 is a perspective view of an adjustment sleeve according to the present invention;
fig. 11 is a schematic perspective view of the stopper of the present invention.
Detailed Description
As shown in fig. 1 to 11, the portable crane structure of the present invention includes a crane base 1, a vertical rod 2, a suspension rod 3, a power unit 4, a hoisting steel wire 5, a hoisting head 6 and a lifting mechanism 7; the invention consists of a vertical rod 2, a suspension rod 3 and a vertical rod 2, wherein the vertical rod 2 comprises a vertical rod seat 20, a bottom vertical rod 21, a middle sleeve 22 and an inner sleeve 23. The upright rod seat 20 is fixed on the machine base 1, and the bottom upright rod 21 is inserted and seated in the upright rod seat 20; in order to adjust the front and back movement of the bottom upright rod 21, the length of the front and back inner cavity of the upright rod seat 20 is larger than the length of the front and back outer diameter of the bottom upright rod 21, and upright rod front and back adjusting screws 201 are respectively arranged on the front and back walls of the upright rod seat 20.
The middle sleeve 22 is sleeved on the bottom upright rod 21, the upright rod seat 20, the bottom upright rod 21 and the inner sleeve 23 are square tubes or polygonal tubes, and the middle sleeve 22 is a circular tube; the bottom end and the top end of the middle sleeve 22 are respectively provided with a square-circle conversion piece 225, the square-circle conversion piece 225 comprises a conversion chassis 2250 and a conversion chassis cover 2251, the middle part of the conversion chassis 2250 is provided with a square through hole 2252, and a ball bearing capable of enabling the conversion chassis 2250 and the conversion chassis cover 2251 to rotate relatively is arranged between the two.
The inner sleeve 23 is sleeved in the bottom upright rod 21, and as shown in fig. 2, the top end of the bottom upright rod 21 is an inclined opening 210 with a low front end and a high rear end; a lifting mechanism mounting shaft seat 211 for mounting a lifting mechanism 7 is arranged at the top end of the bottom upright rod 21, and a shaft seat hole 2111 and a shaft seat clamping groove 2112 are arranged on the lifting mechanism mounting shaft seat 211; an L-shaped top mounting seat 230 is arranged at the top of the inner sleeve 23; the lifting mechanism 7 comprises a lifting clamping plate 70, an adjusting plate 71 and an adjusting handle device 72, wherein the lifting clamping plate 70 comprises a clamping plate frame 700, a clamping plate frame cavity 701 and a clamping plate frame handle 702; the adjusting plate 71 comprises an adjusting plate frame 710, an adjusting plate frame cavity 711 and an adjusting frame edge shaft 712; the adjusting handle device 72 comprises an adjusting head 720 and an adjusting handle 721 arranged at the rear end thereof, wherein the front end of the adjusting head 720 is provided with an adjusting bayonet 722, and the rear section of the adjusting head 720 is provided with a handle shaft hole 723; the adjusting handle device 72 passes through the shaft seat hole 2111 and the handle shaft hole 723 through the adjusting pin 2110 and is arranged on the lifting mechanism mounting shaft seat 211; the inner sleeve 23 passes through the clamping plate frame cavity 701 and the adjusting plate frame cavity 711, and enables the corresponding edge of the clamping plate frame 700 provided with the clamping plate frame handle 702 to be movably matched and installed in the shaft seat clamping groove 2112, and enables the adjusting plate 71 to be movably matched and installed in the adjusting bayonet 722 through the adjusting frame edge shaft 712. A hanging rod seat 220 is arranged at the bottom of the middle sleeve 22, a hanging rod seat pin shaft hole 221 is arranged on the hanging rod seat 220, the bottom end of the hanging rod 3 is connected with the hanging rod seat 220 through a hanging rod pin shaft 30, and a lifting head 6 is arranged at the top end of the hanging rod 3; the hoisting head 6 comprises a hoisting head body 60, a hoisting head arbor wheel 62 arranged in the hoisting head body 60 through a pin shaft 61 and a hoisting head limiting piece 63 arranged at the bottom of the hoisting head body 60; a guide wheel seat 222 is arranged at the top of the middle sleeve 22, and a guide wheel 224 is arranged on the guide wheel seat 222 through a guide wheel pin shaft 223; the power unit 4 is arranged on the crane base 1 and comprises a winch 40, a motor 41 and a gearbox 42; one end of the hoisting steel wire 5 is connected with the winch 40, the other end of the hoisting steel wire passes through the guide wheel 224 and the hoisting head arbor wheel 62 to be connected with the circular chuck 52 and the lifting hook 51, and the circular chuck 52 is fixed on the steel wire rope close to the lifting hook 51. In order to meet more construction site requirements, the front end of the crane base 1 is provided with a forward inclined support leg 13, and a non-slip mat 12 is arranged below the support leg 13. The invention is characterized in that a limit switch 226 is arranged on the middle sleeve 22 and used for controlling the power supply of the power unit 4 to be automatically cut off when the suspension rod 3 moves to be close to the middle sleeve 22, a sleeve steel wire seat ring 228 is arranged at the top of the middle sleeve 22, a sleeve steel wire seat ring 31 is arranged at the top end of the suspension rod 3, and a frame steel wire 8 is arranged between the sleeve steel wire seat ring 228 and the sleeve steel wire seat ring 31.
When the building material is hung to the room through the window in the room or the building rubbish is hung to the ground for use, the lifting mechanism 7 is firstly pushed to the front of the window, the operation method is that the adjusting handle 721 is pressed downwards, the adjusting bayonet 722 drives the adjusting frame shaft 712 to move upwards, the adjusting plate 71 drives the inner sleeve 23 arranged in the adjusting plate frame cavity 711 to move upwards under the action of friction force, and the top mounting seat 230 arranged at the top of the inner sleeve 23 is tightly clamped at the bottom of the inner side of the window beam after being pressed downwards for a plurality of times. At this time, the object can be lifted; the hoisted object is hung on the hook 51, the motor 41 is started, the hoist 40 is driven to work through the gearbox 42, and the hoisted object is hoisted step by step. When the hoisting steel wire 5 pulls the hoisted object to the limit anti-collision block 50 to contact with the hoisting head body 60 of the hoisting head 6, the limit anti-collision block 50 is clamped, at the moment, the winch 40 continues to work, the upper edge of the hoisted object bypasses the front end of the hoisting head body 60 by abutting against the inclined plane of the limit anti-collision block 50 so as to prevent the hoisted object from colliding with the hoisting head body 60, one end of the hoisting rod 3 provided with the hoisting head 6 is pulled by the hoisting steel wire 5 to rotate around the hoisting rod pin shaft 30 arranged on the hoisting rod seat 210, when the hoisting rod 3 rotates to a certain angle, the lower end of the circular chuck 52 falls and is clamped in the V-shaped buckle of the hoisting head limiting block 63, the circular chuck 52 is clamped at the top of the hoisting head limiting block 63, the hoisting head 6 is ensured to be locked and positioned until the hoisted object reaches the highest position, at the moment, the hoisting rod 3 touches the. At this time, the hoisted object is pulled indoors to be taken down, and then the hoisting work is completed.
After the work is finished, when the lifting device needs to be removed, the clamp plate frame handle 702 of the lifting clamp plate 70 is lifted upwards by force, the adjusting plate 71 is also driven to be lifted upwards, at the moment, friction force does not exist, and the inner sleeve 23 is retracted into the bottom upright rod 21 under the action of gravity.
In order to further enhance the installation and fixation of the portable crane structure under some working conditions, the vertical edge of the top mounting base 230 arranged on the top of the inner sleeve 23 is provided with a reinforced mounting hole 2300, after the top mounting base 230 is tightly clamped on the bottom of the inner side of the window beam, the expansion screw is fixed on the inner side of the window beam through the reinforced mounting hole 2300, and in order to protect the wall surface, the wall surface of the top mounting base 230 close to the wall surface is provided with a soft gasket 2301.
In order to adjust the height of the middle sleeve 22, the sidewall of the bottom upright 21 is provided with a through height adjusting hole 213 and an elevation adjusting pin 214 capable of being inserted therein.
In order to adjust the height of the middle sleeve 22 according to the requirement, an adjusting sleeve 212 is sleeved on the bottom upright rod 21, and a fine adjusting hole 2120 which penetrates through and a height adjusting bolt 214 which can be inserted into the fine adjusting hole 2120 are arranged on the side wall of the adjusting sleeve 212.
In order to limit the relative rotation between the middle sleeve 22 and the bottom upright 21, a positioning adjusting screw 227 is provided on the side wall of the middle sleeve 22. When the middle sleeve 22 needs to be rotated to pull the suspended object indoors, the positioning adjusting screw 227 can be loosened, and the middle sleeve 22 is rotated.
In specific implementation, the suspension rod 3 can be designed into a telescopic structure according to requirements so as to adjust the length of the suspension rod.
In specific implementation, a fastener can be arranged between the push handle 11 and the bottom upright 21 according to requirements to increase the structural stability of the push handle
For the convenience of transportation, shoulder belts are arranged at the rear two ends of the crane base 1.
Claims (10)
1. A portable crane structure comprises a crane base (1), a vertical rod (2), a suspender (3), a power unit (4), a hoisting steel wire (5), a hoisting head (6) and a lifting mechanism (7); the vertical rod (2) comprises a vertical rod seat (20), a bottom vertical rod (21), a middle sleeve (22) and an inner sleeve (23), the vertical rod seat (20) is fixed on the machine base (1), the bottom vertical rod (21) is inserted and seated in the vertical rod seat (20), the middle sleeve (22) is sleeved on the bottom vertical rod (21), the inner sleeve (23) is sleeved in the bottom vertical rod (21), and the top end of the bottom vertical rod (21) is an inclined opening (210) with a low front end and a high rear end; a lifting mechanism mounting shaft seat (211) for mounting a lifting mechanism (7) is arranged at the top end of the bottom upright rod (21), and a shaft seat hole (2111) and a shaft seat clamping groove (2112) are arranged on the lifting mechanism mounting shaft seat (211); the top of the inner sleeve (23) is provided with a top mounting seat (230); the lifting mechanism (7) comprises a lifting clamping plate (70), an adjusting plate (71) and an adjusting handle device (72), wherein the lifting clamping plate (70) comprises a clamping plate frame (700), a clamping plate frame cavity (701) and a clamping plate frame handle (702); the adjusting plate (71) comprises an adjusting plate frame (710), an adjusting plate frame cavity (711) and an adjusting frame side shaft (712); the adjusting handle device (72) comprises an adjusting head (720) and an adjusting handle (721) arranged at the rear end of the adjusting head, the front end of the adjusting head (720) is provided with an adjusting bayonet (722), and the rear section of the adjusting head (720) is provided with a handle shaft hole (723); the adjusting handle device (72) passes through the shaft seat hole (2111) and the handle shaft hole (723) through an adjusting pin shaft (2110) and is arranged on the lifting mechanism mounting shaft seat (211); the inner sleeve (23) penetrates through the clamping plate frame cavity (701) and the adjusting plate frame cavity (711), and the corresponding edge of the clamping plate frame (700) provided with the clamping plate frame handle (702) is movably matched and installed in the shaft seat clamping groove (2112), so that the adjusting plate (71) adjusting frame edge shaft (712) is movably matched and installed in the adjusting bayonet (722); a lifting rod seat (220) is arranged at the bottom of the middle sleeve (22), a lifting rod seat pin shaft hole (221) is arranged on the lifting rod seat (220), the bottom end of the lifting rod (3) is connected with the lifting rod seat (220) through a lifting rod pin shaft (30), and a lifting head (6) is arranged at the top end of the lifting rod (3); the hoisting head (6) comprises a hoisting head body (60), a hoisting head arbor wheel (62) arranged in the hoisting head body (60) through a pin shaft (61), and a hoisting head limiting piece (63) arranged at the bottom of the hoisting head body (60); a guide wheel seat (222) is arranged at the top of the middle sleeve (22), and a guide wheel (224) is arranged on the guide wheel seat (222) through a guide wheel pin shaft (223); the power unit (4) is arranged on the crane base (1) and comprises a winch (40), a motor (41) and a gearbox (42); one end of a hoisting steel wire (5) is connected with the winch (40), the other end of the hoisting steel wire penetrates through the guide wheel (224) and the hoisting head shaft wheel (62) to be connected with the circular clamping head (52) and the lifting hook (51), and the circular clamping head (52) is fixed on the steel wire rope close to the lifting hook (51).
2. The portable crane structure according to claim 1, characterized in that the upright base (20), the bottom upright (21) and the inner casing (23) are square or polygonal tubes, the middle casing (22) being a circular tube; the bottom end and the top end of the middle sleeve (22) are respectively provided with a square-circle conversion piece (225), the square-circle conversion piece (225) comprises a conversion chassis (2250) and a rotation chassis cover (2251), a square through hole (2252) is formed in the middle of the conversion chassis (2250), and a bearing capable of enabling the conversion chassis (2250) and the rotation chassis cover (2251) to rotate relatively is arranged between the conversion chassis (2250) and the rotation chassis cover.
3. The portable crane structure as claimed in claim 1 or 2, wherein, in order to adjust the front and back movement of the bottom vertical rod (21), the length of the front and back inner cavity of the vertical rod seat (20) is larger than the front and back outer diameter of the bottom vertical rod (21), and vertical rod front and back adjusting screws (201) are respectively arranged on the front and back walls of the vertical rod seat (20).
4. The portable crane structure according to claim 1 or 2, characterized in that, in order to adjust the height of the middle casing (22), the bottom upright (21) is sleeved with an adjusting sleeve (212), the side wall of the adjusting sleeve (212) is provided with a through fine adjusting hole (2120), the side wall of the bottom upright (21) is provided with a through height adjusting hole (213), and an elevation adjusting bolt (214) capable of being inserted into the fine adjusting hole (2120) and the corresponding height adjusting hole (213).
5. A portable crane structure according to claim 1 or 2, characterized in that at the top of the intermediate casing (22) there is a casing wire seating ring (228), at the top end of the boom (3) there is a casing wire seating ring (31), and between the casing wire seating ring (228) and the casing wire seating ring (31) there is a frame wire (8).
6. The portable crane structure according to claim 1 or 2, characterized in that in order to limit the relative rotation of the intermediate bushing (22) and the bottom upright (21), the side wall of the intermediate bushing (22) is provided with a set adjusting screw (227).
7. The portable crane structure according to claim 1 or 2, characterized in that the bottom rear end of the crane base (1) is provided with rollers (10).
8. The portable crane structure according to claim 1 or 2, characterized in that the top rear end of the crane base (1) is provided with a push handle (11).
9. The portable crane structure according to claim 1 or 2, characterized in that the hoisting steel wire (5) is sleeved with a limiting anti-collision block (50) which is sleeved between the crane body (60) and the circular chuck (52), the limiting anti-collision block (50) with two small ends and a thick middle is provided with a through steel wire perforation (500), and a limiting block adjusting hole (501) is arranged perpendicular to the steel wire perforation (500).
10. The portable crane structure according to claim 1 or 2, wherein the top mounting base (230) provided on the top of the inner sleeve (23) has a reinforcing mounting hole (2300) at its vertical edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328738.5A CN109292666B (en) | 2018-11-09 | 2018-11-09 | Portable crane structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328738.5A CN109292666B (en) | 2018-11-09 | 2018-11-09 | Portable crane structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109292666A CN109292666A (en) | 2019-02-01 |
| CN109292666B true CN109292666B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811328738.5A Active CN109292666B (en) | 2018-11-09 | 2018-11-09 | Portable crane structure |
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| CN (1) | CN109292666B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207374Y (en) * | 1994-08-29 | 1995-09-13 | 王绍清 | Manpower, electric mini-size operating hoisting machine |
| CN2887825Y (en) * | 2006-04-07 | 2007-04-11 | 宋鹏飞 | Mini-size hoist machine |
| CN201288040Y (en) * | 2008-05-12 | 2009-08-12 | 李战胜 | Multifunctional swing machine |
| CN201678398U (en) * | 2010-03-24 | 2010-12-22 | 马利斌 | High-rise indoor object-suspending device |
| CN202322180U (en) * | 2011-12-01 | 2012-07-11 | 李新民 | Domestic small-size hoist |
| CN203568755U (en) * | 2013-11-28 | 2014-04-30 | 张华� | Telpher for house decoration |
| KR20150062539A (en) * | 2013-11-29 | 2015-06-08 | (주)엘지하우시스 | Winch for construction material |
| CN206970094U (en) * | 2017-07-21 | 2018-02-06 | 广东中科揽胜辐射防护科技有限公司 | The sling cart detachably assembled |
-
2018
- 2018-11-09 CN CN201811328738.5A patent/CN109292666B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207374Y (en) * | 1994-08-29 | 1995-09-13 | 王绍清 | Manpower, electric mini-size operating hoisting machine |
| CN2887825Y (en) * | 2006-04-07 | 2007-04-11 | 宋鹏飞 | Mini-size hoist machine |
| CN201288040Y (en) * | 2008-05-12 | 2009-08-12 | 李战胜 | Multifunctional swing machine |
| CN201678398U (en) * | 2010-03-24 | 2010-12-22 | 马利斌 | High-rise indoor object-suspending device |
| CN202322180U (en) * | 2011-12-01 | 2012-07-11 | 李新民 | Domestic small-size hoist |
| CN203568755U (en) * | 2013-11-28 | 2014-04-30 | 张华� | Telpher for house decoration |
| KR20150062539A (en) * | 2013-11-29 | 2015-06-08 | (주)엘지하우시스 | Winch for construction material |
| CN206970094U (en) * | 2017-07-21 | 2018-02-06 | 广东中科揽胜辐射防护科技有限公司 | The sling cart detachably assembled |
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| Publication number | Publication date |
|---|---|
| CN109292666A (en) | 2019-02-01 |
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Effective date of registration: 20240407 Address after: Room B0550, Building 2, No. 947 Jinle Road, Baoshan District, Shanghai, 2019 Patentee after: Shanghai Meiheng Hoisting Machinery (Group) Co.,Ltd. Country or region after: China Address before: No. 10, Building 15, Jinqiao Market, Ruichang City, Jiujiang City, Jiangxi Province, 332200 Patentee before: Fang Hanqi Country or region before: China |