CN111302233A - Stable lifting cantilever crane stand column - Google Patents
Stable lifting cantilever crane stand column Download PDFInfo
- Publication number
- CN111302233A CN111302233A CN201811507272.5A CN201811507272A CN111302233A CN 111302233 A CN111302233 A CN 111302233A CN 201811507272 A CN201811507272 A CN 201811507272A CN 111302233 A CN111302233 A CN 111302233A
- Authority
- CN
- China
- Prior art keywords
- fixed
- crane
- stable
- base
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Abstract
The invention discloses a stable liftable cantilever crane stand column which comprises a base, wherein fixed plates are fixedly arranged at four corners of the base, a stable movable plate is fixedly arranged in the fixed plates, one end of the stable movable plate is provided with a fixing mechanism, and the fixing mechanism comprises a fastening screw rod, a first threaded hole, a buffer spring, a fixed block, a limiting cap, an anti-skidding damping gasket, a sliding rod, a limiting plate and a fixed groove; according to the anti-skid damping gasket fixing device, the vibration generated by the lifting motor during working is effectively reduced through the elastic buffering effect of the buffering spring, the using stability of the crane is enhanced, the anti-skid damping gasket is stably arranged on the ground through rotating the handle at the top end of the fastening screw rod, the operation and the use of workers are facilitated, the working efficiency of the workers is improved, meanwhile, the limiting plate is arranged on the lower surface of the fixing block through the bolt, the buffering spring and the anti-skid damping gasket are convenient to install, fix, disassemble, maintain and replace, and the maintenance efficiency of the workers is.
Description
Technical Field
The invention belongs to the technical field of cranes, and particularly relates to a stable liftable cantilever crane upright post.
Background
The cantilever crane fetching device is hung at the arm end or on a crane trolley which can run along the rotating arm, the rotating arm can rotate, but the jib crane which can not pitch is called a cantilever crane, the cantilever crane is a small and medium-sized hoisting device, has the characteristics of unique structure, safety, reliability, high efficiency, energy conservation, time and labor conservation, flexibility and the like, can be operated freely in three-dimensional space, and is suitable for occasions of section spacing and intensive transportation.
The stand height of current cantilever crane is fixed mostly, and the usability is not nimble enough, and cantilever crane stand is mostly through motor drive, and it is big to produce vibration and lead to the noise when using, the poor problem of stability, and we provide a cantilever crane stand of stable form liftable for this reason.
Disclosure of Invention
The invention aims to provide a stable and liftable cantilever crane upright post, which aims to solve the problems that the height of the upright post of the existing cantilever crane is mostly fixed, the usability is not flexible enough, the upright post of the cantilever crane is mostly driven by a motor, and the noise and the stability are high and poor due to vibration generated during use.
In order to achieve the purpose, the invention provides the following technical scheme: a stable liftable cantilever crane upright comprises a base, wherein a crane upright sleeve is fixedly arranged on the upper surface of the base, a crane lifting rod is arranged inside the crane upright sleeve, a crane cantilever is fixedly arranged at the top end of the crane lifting rod, fixed plates are fixedly arranged at the positions of four corners of the base, a stable movable plate is fixedly arranged inside the fixed plates, a fixing mechanism is arranged at one end of the stable movable plate and comprises a fastening screw rod, a first threaded hole, a buffer spring, a fixed block, a limiting cap, an anti-skidding damping gasket, a sliding rod, a limiting plate and a fixed groove, the bottom end of the fastening screw rod penetrates through the inside of the first threaded hole and is fixedly arranged with the fixed block, a handle is fixedly arranged at the top end of the fastening screw rod, a first threaded hole is arranged on the upper surface of the stable movable plate and penetrates through the lower surface of the stable movable plate, the downside at the fixed block is fixed in the installation of anti-skidding damping gasket, the upper surface at anti-skidding damping gasket is fixed in the installation of slide bar, the top of slide bar runs through the inside of limiting plate and places the inside at the fixed slot, the lower surface at the fixed block and the downside that is located the fixed slot are fixed in the limiting plate installation, the lower surface at the fixed block is seted up to the fixed slot, the inside at the top of slide bar and be located the fixed slot is fixed in the installation of spacing cap, the inside at the upside of spacing cap and be located the fixed slot is placed in the buffer spring installation, the inside of fixed plate is provided with rotary.
Preferably, the rotating mechanism comprises a bearing, a fixed shaft, a movable groove, a clamping groove and a fixed clamping block, the fixed shaft is symmetrically installed and fixed on two sides of the stable movable plate and placed in the movable groove, the movable groove is formed in the inner surface of the fixed plate, the bearing is installed and fixed at one end of the fixed shaft and placed in the movable groove, the fixed clamping block is symmetrically installed and fixed on the surface of the fixed shaft and placed in the limiting cap, and the clamping groove is symmetrically formed in the inner surface of the bearing.
Preferably, the rollers are symmetrically and fixedly arranged on the lower surface of the base.
Preferably, a push rod is fixedly arranged on the upper surface of the base, and anti-skid grains are arranged on the surface of the push rod.
Preferably, the upper surface of the base is fixedly provided with a control box and is positioned on one side of the crane upright column sleeve, and the surface of the control box is provided with a control button.
Preferably, a reinforcing rod is fixedly arranged on the upper surface of the crane cantilever, one end of the reinforcing rod is fixedly arranged on the upper surface of the crane cantilever, the other end of the reinforcing rod is fixedly arranged on the top end of the crane lifting rod, and an electric hoist is fixedly arranged on the lower side of the crane cantilever.
Preferably, the side installation of base is fixed with U type fixture block, the internally mounted of U type fixture block is provided with L type bolt, the side of stabilizing the fly leaf is fixed in the installation of fixed arch and with U type fixture block phase-match block, the through-hole has been seted up to fixed bellied upper surface and with L type bolt phase-match block.
Preferably, a second threaded hole is formed in the upper surface of the fixing plate and communicated with the inside of the fixing plate, a threaded screw rod is arranged in the second threaded hole, and a fastening disc is arranged at the top end of the threaded screw rod.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the anti-skid damping gasket fixing device, the vibration generated by the lifting motor during working is effectively reduced through the elastic buffering effect of the buffering spring, the using stability of the crane is enhanced, the anti-skid damping gasket is stably arranged on the ground through rotating the handle at the top end of the fastening screw rod, the operation and the use of workers are facilitated, the working efficiency of the workers is improved, meanwhile, the limiting plate is arranged on the lower surface of the fixing block through the bolt, the buffering spring and the anti-skid damping gasket are convenient to install, fix, disassemble, maintain and replace, and the maintenance efficiency of the workers is.
(2) The fixed clamping blocks are symmetrically installed and fixed on the surface of the fixed shaft and placed inside the limiting cap, so that the bearing is conveniently installed and sleeved on the surface of the fixed shaft and is clamped and fixed with the clamping grooves through the fixed clamping blocks, the fixed shaft is prevented from moving inside the bearing, friction force is reduced through rotation of the fixed shaft inside the bearing, the fixed shaft and the inner surface of the movable groove are prevented from being damaged by friction, and the service life of the stable movable plate is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged cross-sectional view of the area A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged cross-sectional view of the area B in FIG. 1 according to the present invention;
FIG. 5 is a schematic top view of the bearing of the present invention;
in the figure: 1. a roller; 2. a base; 3. a push rod; 4. a control box; 5. a crane column sleeve; 6. a crane lifting rod; 7. a reinforcing rod; 8. a crane jib; 9. fastening a screw rod; 10. a stable movable plate; 11. a fixed protrusion; 12. an L-shaped bolt; 13. a U-shaped fixture block; 14. a first threaded hole; 15. a fixing plate; 16. fastening a disc; 17. a buffer spring; 18. a fixed block; 19. a limiting cap; 20. an anti-skid damping shim; 21. a slide bar; 22. a limiting plate; 23. fixing grooves; 24. a threaded lead screw; 25. a bearing; 26. a fixed shaft; 27. a movable groove; 28. a second threaded hole; 29. a card slot; 30. and fixing the clamping block.
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.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a technical solution: a stable type liftable cantilever crane upright column comprises a base 2, a crane upright column sleeve 5 is fixedly installed on the upper surface of the base 2, a crane lifting rod 6 is installed inside the crane upright column sleeve 5, a crane cantilever 8 is fixedly installed at the top end of the crane lifting rod 6, fixing plates 15 are fixedly installed at four corners of the base 2, a stable movable plate 10 is fixedly installed inside the fixing plates 15, a fixing mechanism is arranged at one end of the stable movable plate 10 and comprises a fastening screw rod 9, a first threaded hole 14, a buffer spring 17, a fixing block 18, a limiting cap 19, an anti-skidding damping gasket 20, a sliding rod 21, a limiting plate 22 and a fixing groove 23, the bottom end of the fastening screw rod 9 penetrates through the inside of the first threaded hole 14 and is fixedly installed with the fixing block 18, a handle is fixedly installed at the top end of the fastening screw rod 9, the first threaded hole 14 is formed in the upper surface of the stable movable plate 10 and penetrates through, the anti-skid damping gasket 20 is fixedly arranged on the lower side of the fixed block 18, the sliding rod 21 is fixedly arranged on the upper surface of the anti-skid damping gasket 20, the top end of the sliding rod 21 penetrates through the inside of the limiting plate 22 and is arranged inside the fixed groove 23, the limiting plate 22 is fixedly arranged on the lower surface of the fixed block 18 and is positioned on the lower side of the fixed groove 23, the fixed groove 23 is arranged on the lower surface of the fixed block 18, the limiting cap 19 is fixedly arranged on the top end of the sliding rod 21 and is positioned inside the fixed groove 23, the buffer spring 17 is fixedly arranged on the upper side of the limiting cap 19 and is positioned inside the fixed groove 23, through the elastic buffering effect of the buffer spring 17, the vibration generated by the lifting motor during working is effectively reduced, the using stability of the crane is improved, the handle at the top end of the fastening screw rod 9 is rotated to, meanwhile, the limiting plate 22 is installed and placed on the lower surface of the fixing block 18 through bolts, so that the buffer spring 17 and the anti-skid damping gasket 20 can be conveniently installed, fixed, detached, maintained and replaced, the maintenance efficiency of workers is improved, and the rotating mechanism is arranged inside the fixing plate 15.
In this embodiment, preferably, the rotating mechanism includes a bearing 25, a fixed shaft 26, a movable groove 27, a clamping groove 29 and a fixed clamping block 30, the fixed shaft 26 is symmetrically installed and fixed on two sides of the stable movable plate 10 and placed inside the movable groove 27, the movable groove 27 is formed on the inner surface of the fixed plate 15, the bearing 25 is installed and fixed on one end of the fixed shaft 26 and placed inside the movable groove 27, the fixed clamping block 30 is symmetrically installed and fixed on the surface of the fixed shaft 26 and placed inside the position-limiting cap 19, the clamping groove 29 is symmetrically formed on the inner surface of the bearing 25, so that the bearing 25 is conveniently installed and sleeved on the surface of the fixed shaft 26 and is clamped and fixed with the clamping groove 29 through the fixed clamping block 30, and the fixed, and the friction force is reduced by the fixed shaft 26 rotating inside the bearing 25, the friction damage of the fixed shaft 26 and the inner surface of the movable groove 27 is avoided and the service life of the stationary movable plate 10 is prolonged.
In this embodiment, preferably, the rollers 1 are symmetrically installed and fixed on the lower surface of the base 2, so that a user can push the base 2 to move on the ground.
In this embodiment, preferably, the push rod 3 is fixedly installed on the upper surface of the base 2, and the surface of the push rod 3 is provided with anti-slip lines, so that the friction force on the surface of the push rod 3 is increased, and a user can conveniently hold the push rod 3.
In this embodiment, preferably, the control box 4 is fixed on the upper surface of the base 2 and is located on one side of the crane upright sleeve 5, and the control button is arranged on the surface of the control box 4, so that a user can conveniently operate and use the control box 4 to control the crane.
In this embodiment, preferably, the reinforcing rod 7 is fixed to the upper surface of the crane cantilever 8, one end of the reinforcing rod 7 is fixed to the other end of the upper surface of the crane cantilever 8 and is fixed to the top end of the crane lifting rod 6, the electric hoist is fixed to the lower side of the crane cantilever 8, and the reinforcing effect of the reinforcing rod 7 is used for increasing the stable firmness of the crane cantilever 8.
In this embodiment, preferably, the side mounting of base 2 is fixed with U type fixture block 13, and the internally mounted of U type fixture block 13 is provided with L type bolt 12, and fixed arch 11 is installed and is fixed in the side of firm fly leaf 10 and with U type fixture block 13 phase-match block, and the through-hole has been seted up to fixed arch 11's upper surface and with L type bolt 12 phase-match block, conveniently stabilizes fly leaf 10 and packs up the side of fixing at base 2 and reduce area occupied, makes things convenient for base 2 to remove the transportation.
In this embodiment, preferably, the upper surface of the fixed plate 15 is provided with a second threaded hole 28 and is communicated with the inside of the fixed plate 15, the threaded screw rod 24 is placed in the internal installation of the second threaded hole 28, the top end of the threaded screw rod 24 is provided with the fastening disc 16, the fastening disc 16 is conveniently rotated to enable the bottom end of the threaded screw rod 24 to be tightly attached to the upper surface of the stable movable plate 10, and the crane work is prevented from being influenced by the movement of the stable movable plate 10 when the stable movable plate is unfolded.
The working principle and the using process of the invention are as follows: when the invention is used, firstly, the bearing 25 is sleeved on the surface of the fixed shaft 26, the fixed clamping block 30 is clamped and fixed with the clamping groove 29, then the bearing 25 at one end of the fixed shaft 26 is installed and fixed in the movable groove 27, then the base 2 is moved to a proper position, the L-shaped bolt 12 is pulled upwards from the inside of the U-shaped clamping block 13, then the stable movable plate 10 is overturned, one end of the stable movable plate 10 moves in the fixed plate 15, and simultaneously the fixed shaft 26 rotates in the bearing 25, then, the fastening plate 16 is rotated clockwise to make the bottom end of the threaded screw rod 24 tightly contact with the upper surface of the movable stabilizing plate 10, so that the movable stabilizing plate 10 is stabilized on the side of the base 2, then the handle at the top end of the fastening screw rod 9 is rotated clockwise, so that the fastening screw rod 9 rotates in the first threaded hole 14 and the anti-skid damping gasket 20 is firmly fixed on the ground, and the vibration generated by the lifting motor during working is reduced through the elastic buffering effect of the buffering spring 17.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cantilever crane stand of stable form liftable, includes base (2), the last surface mounting of base (2) is fixed with crane column sleeve (5), crane lifter (6) have been placed to the internally mounted of crane column sleeve (5), the top installation of crane lifter (6) is fixed with crane cantilever (8), the four corners position department of base (2) all installs and is fixed with fixed plate (15), the internally mounted of fixed plate (15) is fixed with firm fly leaf (10), its characterized in that: one end of the stable movable plate (10) is provided with a fixing mechanism, the fixing mechanism comprises a fastening screw rod (9), a first threaded hole (14), a buffer spring (17), a fixed block (18), a limiting cap (19), an anti-skidding damping gasket (20), a sliding rod (21), a limiting plate (22) and a fixed groove (23), the bottom end of the fastening screw rod (9) penetrates through the inside of the first threaded hole (14) and is fixedly installed with the fixed block (18), the top end of the fastening screw rod (9) is fixedly installed with a handle, the first threaded hole (14) is formed in the upper surface of the stable movable plate (10) and penetrates through the lower surface of the stable movable plate (10), the anti-skidding damping gasket (20) is fixedly installed at the lower side of the fixed block (18), the sliding rod (21) is fixedly installed on the upper surface of the anti-skidding damping gasket (20), the top end of the sliding rod (21) penetrates through the inside of the limiting plate (22) and is placed in, the lower surface at fixed block (18) and the downside that is located fixed slot (23) are fixed in the installation of limiting plate (22), the lower surface at fixed block (18) is seted up in fixed slot (23), the inside at the top of slide bar (21) and located fixed slot (23) is fixed in the installation of spacing cap (19), buffer spring (17) installation is placed in the upside of spacing cap (19) and is located the inside of fixed slot (23), the inside of fixed plate (15) is provided with rotary mechanism.
2. The stable liftable cantilever crane column of claim 1, wherein: rotary mechanism includes bearing (25), fixed axle (26), activity groove (27), draw-in groove (29) and fixed fixture block (30), the both sides of firm fly leaf (10) are fixed and are placed in the inside in activity groove (27) in fixed axle (26) symmetry installation, the internal surface at fixed plate (15) is seted up in activity groove (27), the one end at fixed axle (26) is fixed in bearing (25) installation and place in the inside in activity groove (27), fixed fixture block (30) symmetry installation is fixed on the surface of fixed axle (26) and is placed in the inside at spacing cap (19), the internal surface at bearing (25) is seted up in draw-in groove (29) symmetry.
3. The stable liftable cantilever crane column of claim 1, wherein: the lower surface of the base (2) is symmetrically provided with and fixed with rollers (1).
4. The stable liftable cantilever crane column of claim 1, wherein: the anti-skid device is characterized in that a push rod (3) is fixedly arranged on the upper surface of the base (2), and anti-skid grains are arranged on the surface of the push rod (3).
5. The stable liftable cantilever crane column of claim 1, wherein: the upper surface mounting of base (2) is fixed with control box (4) and is located one side of hoist stand sleeve (5), the surface of control box (4) is provided with control button.
6. The stable liftable cantilever crane column of claim 1, wherein: the crane is characterized in that a reinforcing rod (7) is fixedly arranged on the upper surface of the crane cantilever (8), one end of the reinforcing rod (7) is fixedly arranged on the other end of the upper surface of the crane cantilever (8) and is fixedly arranged on the top end of the crane lifting rod (6), and an electric hoist is fixedly arranged on the lower side of the crane cantilever (8).
7. The stable liftable cantilever crane column of claim 1, wherein: the side-mounting of base (2) is fixed with U type fixture block (13), the internally mounted of U type fixture block (13) is provided with L type bolt (12), fixed arch (11) installation is fixed in the side of firm fly leaf (10) and with U type fixture block (13) phase-match block, the through-hole has been seted up to the upper surface of fixed arch (11) and with L type bolt (12) phase-match block.
8. The stable liftable cantilever crane column of claim 1, wherein: the upper surface of the fixing plate (15) is provided with a second threaded hole (28) and communicated with the inside of the fixing plate (15), a threaded screw rod (24) is arranged inside the second threaded hole (28), and a fastening disc (16) is arranged at the top end of the threaded screw rod (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507272.5A CN111302233A (en) | 2018-12-11 | 2018-12-11 | Stable lifting cantilever crane stand column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507272.5A CN111302233A (en) | 2018-12-11 | 2018-12-11 | Stable lifting cantilever crane stand column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111302233A true CN111302233A (en) | 2020-06-19 |
Family
ID=71150528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507272.5A Withdrawn CN111302233A (en) | 2018-12-11 | 2018-12-11 | Stable lifting cantilever crane stand column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047592A (en) * | 2021-03-30 | 2021-06-29 | 浙江泛华工程咨询有限公司 | High-rise building engineering construction protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227762Y (en) * | 1995-09-20 | 1996-05-22 | 齐康强 | One-way bearing |
| CN1440364A (en) * | 2000-07-07 | 2003-09-03 | 粉刷师股份公司 | Support booms for mobile working machines and mobile concrete pump with said support booms |
| DE202004020169U1 (en) * | 2004-12-23 | 2005-03-10 | Schlangen, Thomas | Mobile crane comprises crane supports, each removably connected to a crane support extension or an adapter so that the ballast weight can be reduced or increased depending on the current surface conditions |
| CN201280398Y (en) * | 2008-09-25 | 2009-07-29 | 骆建华 | Movable dual-purpose lifting device |
| CN203948467U (en) * | 2014-07-26 | 2014-11-19 | 慈溪市特种轴承有限公司 | Be provided with the bearing of controlling mechanism |
| CN206088844U (en) * | 2016-08-30 | 2017-04-12 | 河南省中原奥起实业有限公司 | Landing leg winding and unwinding devices for hoist |
| CN107973228A (en) * | 2017-12-29 | 2018-05-01 | 无锡市内河装卸机械有限公司 | A kind of shockproof compression-resistant device of rubber tired crane |
-
2018
- 2018-12-11 CN CN201811507272.5A patent/CN111302233A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227762Y (en) * | 1995-09-20 | 1996-05-22 | 齐康强 | One-way bearing |
| CN1440364A (en) * | 2000-07-07 | 2003-09-03 | 粉刷师股份公司 | Support booms for mobile working machines and mobile concrete pump with said support booms |
| DE202004020169U1 (en) * | 2004-12-23 | 2005-03-10 | Schlangen, Thomas | Mobile crane comprises crane supports, each removably connected to a crane support extension or an adapter so that the ballast weight can be reduced or increased depending on the current surface conditions |
| CN201280398Y (en) * | 2008-09-25 | 2009-07-29 | 骆建华 | Movable dual-purpose lifting device |
| CN203948467U (en) * | 2014-07-26 | 2014-11-19 | 慈溪市特种轴承有限公司 | Be provided with the bearing of controlling mechanism |
| CN206088844U (en) * | 2016-08-30 | 2017-04-12 | 河南省中原奥起实业有限公司 | Landing leg winding and unwinding devices for hoist |
| CN107973228A (en) * | 2017-12-29 | 2018-05-01 | 无锡市内河装卸机械有限公司 | A kind of shockproof compression-resistant device of rubber tired crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047592A (en) * | 2021-03-30 | 2021-06-29 | 浙江泛华工程咨询有限公司 | High-rise building engineering construction protector |
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Application publication date: 20200619 |