CN111977528B - Crane with cantilever adjusting mechanism - Google Patents
Crane with cantilever adjusting mechanism Download PDFInfo
- Publication number
- CN111977528B CN111977528B CN202011020808.8A CN202011020808A CN111977528B CN 111977528 B CN111977528 B CN 111977528B CN 202011020808 A CN202011020808 A CN 202011020808A CN 111977528 B CN111977528 B CN 111977528B
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- Prior art keywords
- cantilever
- nut seat
- electromagnet
- motor
- rotating shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000007665 sagging Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
-
- 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
- B66C23/06—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 mounted for jibbing or luffing movements
-
- 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
- B66C23/163—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 where only part of the column rotates, i.e. at least the bottom part is fixed
-
- 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
- B66C23/88—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of cranes, in particular to a crane with a cantilever adjusting mechanism, which comprises an upright post, wherein a rotating shaft is arranged on the upright post, a cantilever is rotatably arranged on the rotating shaft, a slide rail is arranged on the cantilever, an electric hoist is movably arranged in the slide rail, a support post is fixedly arranged on the rotating shaft, a motor is fixedly arranged in the support post, the motor is fixedly connected with a screw rod, a nut seat is movably arranged on the screw rod, a pull rod is hinged to the nut seat, and the nut seat is slidably arranged in a limit groove arranged on the support post; the storage battery with the single-pole triple-throw switch supplies power to the motor and the electromagnet, the upward warping degree of the cantilever is safely regulated and controlled, the stability of the cantilever is improved when the electromagnet is powered, the cantilever is prevented from sagging when in use, and the electromagnet is powered off when the motor is powered, so that the safety structure is automatically reset, and the adjustment process of the cantilever is not blocked.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a crane with a cantilever adjusting mechanism.
Background
At present, the connection among the rotating shaft, the pull rod and the section bar of the cantilever of the common wall-mounted cantilever crane is generally realized directly by welding or other fixed connection modes, the angle adjusting function is not realized, the cantilever can only rotate in the horizontal direction along with the rotating shaft, and the adjustment of the upward warping degree of the cantilever crane cannot be realized. In practical use of the cantilever crane, the difference of the hoisting weight often requires that the upwarp degree of the cantilever crane can be matched with the upwarp degree of the cantilever crane, so that the fetching device on the crane can better fetch and suspend work, and the function of transferring articles is realized, therefore, the existing cantilever crane cannot effectively meet the use requirement of a user, and the stability of the existing cantilever crane is very important to guarantee after the cantilever adjustment process.
Disclosure of Invention
The invention aims to provide a crane with a cantilever adjusting mechanism, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a crane with a cantilever adjusting mechanism comprises an upright post, wherein a rotating shaft is installed on the upright post, a cantilever is rotatably installed on the rotating shaft, a sliding rail is arranged on the cantilever, an electric hoist is movably installed in the sliding rail, a supporting post is fixedly installed on the rotating shaft, a motor is fixedly installed in the supporting post, a lead screw is fixedly connected with the motor, a nut seat is movably installed on the lead screw, a pull rod is hinged on the nut seat, the nut seat is slidably installed in a limiting groove formed in the supporting post, an electromagnet is fixedly installed on the nut seat, the electromagnet is electrically connected to a storage battery, a single-pole three-throw switch is fixedly connected to the storage battery, a sliding groove is formed in the nut seat, a reset spring is fixedly installed in the sliding groove, a top block is fixedly connected to the reset spring, a base is fixedly installed in the top block, and rotate on the base and install the angle locating piece, fixedly connected with torsional spring on the angle locating piece, and fixed mounting has the latch on the angle locating piece, be provided with the tooth's socket on the pillar, be provided with oblique breach on the kicking block, and slidable mounting has the insurance board in the nut seat, and fixedly connected with positioning spring on the insurance board.
Preferably, the stand is a wall-mounted fixed column, the rotating shaft is rotatably mounted in a limiting seat of the stand, the cantilever is connected with the rotating shaft through an articulated piece, and the electric hoist is hoisted below the cantilever.
Preferably, the pillar is horizontally installed, the motor is installed in a cavity of the pillar, the screw rod is installed in the limiting groove through a bearing, an internal thread is arranged in the nut seat, and two ends of the pull rod are respectively hinged to the nut seat and the cantilever.
Preferably, the storage battery is installed on the stand column, and the storage battery is electrically connected with the motor and the electromagnet, and the connection state of the circuit is controlled through the single-pole three-throw switch.
Preferably, the electro-magnet is installed in the below of spout, and kicking block slidable mounting is in the spout, the magnetic path is like magnetic pole with the electro-magnet, the pedestal mounting is at the top of kicking block, and the angle locating piece installs on the fixed axle of base, and the torsional spring cup joints on the fixed axle, the latch is installed at the lower surface of angle locating piece, and the tooth's socket setting is at the upper surface of pillar.
Preferably, the inclined notch is arranged on the side face of the ejector block, the lower end face of the inclined notch is arranged in an inclined mode, the safety plate is installed in the through groove in the side face of the nut seat, the positioning spring is installed in the opening in the bottom of the safety plate, and the safety groove is formed in the wall of the limiting groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the motor and the electromagnet are powered through the storage battery with the single-pole three-throw switch, the upward warping degree of the cantilever is safely regulated and controlled, when the electromagnet is powered, repulsive force generated by the electromagnet and the magnetic block drives the ejector block to move upwards, so that the angle positioning block is rotated out to clamp the latch in the tooth socket, the horizontal position of the nut seat is limited, the angle of the cantilever is further limited, meanwhile, the safety plate is inserted into the safety groove of the support column through the action of the inclined notch by the ejector block, the nut seat is limited and supported in the vertical direction, the stability of the cantilever is improved, the cantilever is prevented from sagging when in use, when the motor is powered, the electromagnet is powered off, the safety structure is automatically reset, and the adjusting process of the cantilever is not hindered;
2. the adjusting of the upward warping degree of the cantilever is driven by a precise servo motor, the motor drives the screw rod to rotate, so that the horizontal movement of the nut seat is controlled, the movement distance is controllable, and the cantilever can be pulled by the pull rod when the nut seat moves, so that the cantilever rotates to accurately change the angle.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a side view of the spacing structure of the present invention.
In the figure: the device comprises an upright post 1, a rotating shaft 2, a cantilever 3, a sliding rail 4, an electric hoist 5, a support 6, a motor 7, a screw rod 8, a nut seat 9, a pull rod 10, a limiting groove 11, an electromagnet 12, a storage battery 13, a single-pole three-throw switch 14, a sliding groove 15, a return spring 16, a top block 17, a magnetic block 18, a base 19, an angle positioning block 20, a torsion spring 21, a latch 22, a tooth groove 23, an inclined notch 24, a safety plate 25 and a positioning spring 26.
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 to 2, the present invention provides a technical solution: a crane with a cantilever adjusting mechanism comprises an upright post 1, wherein a rotating shaft 2 is installed on the upright post 1, a cantilever 3 is installed on the rotating shaft 2 in a rotating mode, a sliding rail 4 is arranged on the cantilever 3, an electric hoist 5 is movably installed in the sliding rail 4, a support 6 is fixedly installed on the rotating shaft 2, a motor 7 is fixedly installed in the support 6, the motor 7 is fixedly connected with a lead screw 8, a nut seat 9 is movably installed on the lead screw 8, a pull rod 10 is hinged on the nut seat 9, the nut seat 9 is slidably installed in a limiting groove 11 formed in the support 6, an electromagnet 12 is fixedly installed on the nut seat 9, the electromagnet 12 is electrically connected onto a storage battery 13, a single-pole three-throw switch 14 is fixedly connected onto the storage battery 13, a sliding groove 15 is formed in the nut seat 9, and a reset spring 16 is fixedly installed in the sliding groove 15, fixedly connected with kicking block 17 on reset spring 16, and fixed mounting has magnetic path 18 in the kicking block 17, fixed mounting has base 19 on the kicking block 17, and rotates on the base 19 and install angle locating piece 20, fixedly connected with torsional spring 21 on the angle locating piece 20, and fixed mounting has latch 22 on the angle locating piece 20, be provided with tooth's socket 23 on the pillar 6, be provided with oblique breach 24 on the kicking block 17, and slidable mounting has a insurance board 25 in the nut seat 9, and fixedly connected with positioning spring 26 on the insurance board 25.
The vertical column 1 is a wall-mounted fixed column, the rotating shaft 2 is rotatably installed in a limiting seat of the vertical column 1, the cantilever 3 is connected with the rotating shaft 2 through an articulated piece, the electric hoist 5 is hoisted below the cantilever 3 and fixed in an integral structure through the vertical column 1, the rotating shaft 2 can drive the cantilever 3 to horizontally rotate, the electric hoist 5 can slide in the sliding rail 4, so that a heavy object is lifted and transferred, meanwhile, the cantilever 3 can rotate, and the upward warping degree is adjusted according to the weight of the heavy object;
the strut 6 is horizontally installed, the motor 7 is installed in a cavity of the strut 6, the screw rod 8 is installed in the limiting groove 11 through a bearing, an internal thread is arranged in the nut seat 9, two ends of the pull rod 10 are respectively hinged to the nut seat 9 and the cantilever 3, the motor 7 is a precise servo motor, the screw rod 8 is driven to rotate through the motor 7 to control the nut seat 9 to horizontally move, the moving distance is controllable, and the cantilever 3 can be pulled through the pull rod 10 when the nut seat 9 moves, so that the cantilever 3 rotates to precisely change the angle;
the storage battery 13 is arranged on the upright post 1, the storage battery 13 is electrically connected with the motor 7 and the electromagnet 12, the circuit communication state is controlled through the single-pole triple-throw switch 14, the single-pole triple-throw switch 14 has three states of the motor 7 communication, the electromagnet 12 communication and the idle state, when the angle of the cantilever 3 is adjusted, the motor 7 is powered through the storage battery 13, when the cantilever 3 is fixed, the electromagnet 12 is powered through the storage battery 13, and when the cantilever 3 is maintained, the single-pole triple-throw switch 14 is controlled;
the electromagnet 12 is installed below the sliding groove 15, the top block 17 is installed in the sliding groove 15 in a sliding mode, the magnetic block 18 and the electromagnet 12 are of like magnetic poles, the base 19 is installed at the top of the top block 17, the angle positioning block 20 is installed on a fixing shaft of the base 19, the torsion spring 21 is sleeved on the fixing shaft, the latch 22 is installed on the lower surface of the angle positioning block 20, the tooth groove 23 is formed in the upper surface of the supporting column 6, after the cantilever 3 is adjusted, power is supplied to the electromagnet 12, the electromagnet 12 and the magnetic block 18 generate driving repulsive force to move the top block 17 upwards, the base 19 extends out of the sliding groove 15, the angle positioning block 20 rotates out under the action of the torsion spring 21, the latch 22 is clamped in the tooth groove 23, the horizontal position of the nut seat 9 is limited, and the angle of the cantilever 3 is limited;
the inclined notch 24 is arranged on the side surface of the top block 17, the lower end surface of the inclined notch 24 is arranged in an inclined manner, the safety plate 25 is arranged in a through groove on the side surface of the nut seat 9, the positioning spring 26 is arranged in an opening at the bottom of the safety plate 25, the safety groove is arranged on the groove wall of the limiting groove 11, when the top block 17 moves upwards, the rear end of the safety plate 25 can be extruded through the inclined notch 24, so that the safety plate 25 overcomes the elastic force of the positioning spring 26 and is inserted into the safety groove of the support 6, the nut seat 9 is vertically limited and supported, the pressure of the lead screw 8 is reduced, when the cantilever 3 angle is adjusted through the motor 7, the electromagnet 12 is powered off, and under the action of the reset spring 16 and the positioning spring 26, the angle positioning block 20 and the safety plate 25 retract, and the movement of the nut seat 9 cannot be hindered;
the working principle is as follows: firstly, the integral structure is fixed through the upright post 1, the rotating shaft 2 can drive the cantilever 3 to horizontally rotate, the electric hoist 5 can slide in the slide rail 4, so as to lift and transfer a heavy object, meanwhile, the cantilever 3 can rotate, the upwarp degree is adjusted according to the weight of the heavy object, the circuit is controlled to be communicated through the single-pole three-throw switch 14 for adjustment, the single-pole three-throw switch 14 has three states of motor 7 communication, electromagnet 12 communication and idle position, when the angle of the cantilever 3 is adjusted, the motor 7 is powered through the storage battery 13, the motor 7 is a precise servo motor, the nut seat 9 is controlled to horizontally move through the motor 7 driving the lead screw 8 to rotate, the moving distance is controllable, when the nut seat 9 moves, the cantilever 3 can be pulled through the pull rod 10, so that the cantilever 3 rotates to precisely change the angle, and when the cantilever 3 is fixed, the electromagnet 12 is powered through the storage battery 13, the repulsion force generated by the electromagnet 12 and the magnetic block 18 drives the ejector block 17 to move upwards, so that the base 19 extends out of the sliding groove 15, the angle positioning block 20 rotates out under the action of the torsion spring 21, the latch 22 is clamped in the tooth groove 23, the horizontal position of the nut seat 9 is limited, the angle of the cantilever 3 is further limited, and when the top block 17 moves upwards, the rear end of the safety plate 25 can be extruded through the inclined notch 24, so that the safety plate 25 is inserted into the safety groove of the column 6 against the elastic force of the positioning spring 26, the nut seat 9 is limited and supported in the vertical direction, the pressure of the screw rod 8 is reduced, when the angle of the cantilever 3 is continuously adjusted by the motor 7, the electromagnet 12 is powered off, under the action of the return spring 16 and the positioning spring 26, the angle positioning block 20 and the safety plate 25 are retracted and do not obstruct the movement of the nut seat 9.
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 (6)
1. The utility model provides a hoist with cantilever adjustment mechanism, includes stand (1), its characterized in that: the electric lifting device is characterized in that a rotating shaft (2) is installed on the upright post (1), a cantilever (3) is installed on the rotating shaft (2) in a rotating mode, a sliding rail (4) is arranged on the cantilever (3), an electric hoist (5) is movably installed in the sliding rail (4), a support column (6) is fixedly installed on the rotating shaft (2), a motor (7) is fixedly installed in the support column (6), a lead screw (8) is fixedly connected with the motor (7), a nut seat (9) is movably installed on the lead screw (8), a pull rod (10) is hinged to the nut seat (9), the nut seat (9) is slidably installed in a limiting groove (11) formed in the support column (6), an electromagnet (12) is fixedly installed on the nut seat (9), the electromagnet (12) is electrically connected to a storage battery (13), and a single-knife three-throw switch (14) is fixedly connected to the storage battery (13), be provided with spout (15) on nut seat (9), and fixed mounting has reset spring (16) in spout (15), fixedly connected with kicking block (17) on reset spring (16), and fixed mounting has magnetic path (18) in kicking block (17), fixed mounting has base (19) on kicking block (17), and rotates on base (19) and install angle locating piece (20), fixedly connected with torsional spring (21) on angle locating piece (20), and fixed mounting has latch (22) on angle locating piece (20), be provided with tooth's socket (23) on pillar (6), be provided with oblique breach (24) on kicking block (17), and slidable mounting has insurance board (25) in nut seat (9), and fixedly connected with positioning spring (26) on insurance board (25).
2. A crane with jib adjustment mechanism according to claim 1, wherein: the stand (1) is a wall-mounted fixing column, the rotating shaft (2) is rotatably installed in a limiting seat of the stand (1), the cantilever (3) is connected with the rotating shaft (2) through an articulated piece, and the electric hoist (5) is hoisted below the cantilever (3).
3. A crane with jib adjustment mechanism according to claim 1, wherein: pillar (6) horizontal installation, and motor (7) are installed in the cavity of pillar (6), lead screw (8) are installed in spacing groove (11) through the bearing, and are provided with the internal thread in nut seat (9), the both ends of pull rod (10) articulate respectively on nut seat (9) and cantilever (3).
4. A crane with jib adjustment mechanism according to claim 1, wherein: the storage battery (13) is installed on the upright post (1), the storage battery (13) is electrically connected with the motor (7) and the electromagnet (12), and the communication state of the circuit is controlled through the single-pole triple-throw switch (14).
5. A crane with jib adjustment mechanism according to claim 1, wherein: electromagnet (12) is installed in the below of spout (15), and kicking block (17) slidable mounting is in spout (15), magnetic path (18) and electromagnet (12) are like magnetic pole, base (19) are installed at the top of kicking block (17), and angle locating piece (20) install on the fixed axle of base (19), and torsional spring (21) cup joint on the fixed axle, latch (22) are installed at the lower surface of angle locating piece (20), and tooth's socket (23) set up the upper surface at pillar (6).
6. A crane with jib adjustment mechanism according to claim 1, wherein: the inclined notch (24) is arranged on the side face of the ejector block (17), the lower end face of the inclined notch (24) is arranged in an inclined mode, the safety plate (25) is installed in the through groove in the side face of the nut seat (9), the positioning spring (26) is installed in the opening in the bottom of the safety plate (25), and the safety groove is formed in the groove wall of the limiting groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020808.8A CN111977528B (en) | 2020-09-25 | 2020-09-25 | Crane with cantilever adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020808.8A CN111977528B (en) | 2020-09-25 | 2020-09-25 | Crane with cantilever adjusting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111977528A CN111977528A (en) | 2020-11-24 |
| CN111977528B true CN111977528B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011020808.8A Active CN111977528B (en) | 2020-09-25 | 2020-09-25 | Crane with cantilever adjusting mechanism |
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| Country | Link |
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| CN (1) | CN111977528B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450684A (en) * | 2020-12-01 | 2021-03-09 | 福鼎诺一家居设计有限公司 | Anti-skid vacuum cup |
| CN113415742B (en) * | 2021-08-02 | 2023-06-23 | 王凯 | Crane telescopic boom sliding block assembly |
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|---|---|---|---|---|
| US6732871B1 (en) * | 1999-09-14 | 2004-05-11 | Neil R. Flores | Cargo transport and handling device |
| WO2005054109A1 (en) * | 2003-12-02 | 2005-06-16 | Tadano Co., Ltd. | Mobile crane |
| CN106429902A (en) * | 2016-10-14 | 2017-02-22 | 上海德益轻型起重机有限公司 | Cantilever warping degree adjusting mechanism for cantilever crane |
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN207713298U (en) * | 2017-12-14 | 2018-08-10 | 国网山东省电力公司龙口市供电公司 | A kind of hanging apparatus for box-type substation |
| CN108584727A (en) * | 2018-07-16 | 2018-09-28 | 浙江艾乐琪新材料有限公司 | A kind of sink lifting appliance and hoisting method |
| CN111332969A (en) * | 2020-03-01 | 2020-06-26 | 李宗利 | Assembled wall hoist device that stability is good |
-
2020
- 2020-09-25 CN CN202011020808.8A patent/CN111977528B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6732871B1 (en) * | 1999-09-14 | 2004-05-11 | Neil R. Flores | Cargo transport and handling device |
| WO2005054109A1 (en) * | 2003-12-02 | 2005-06-16 | Tadano Co., Ltd. | Mobile crane |
| CN106429902A (en) * | 2016-10-14 | 2017-02-22 | 上海德益轻型起重机有限公司 | Cantilever warping degree adjusting mechanism for cantilever crane |
| CN207713298U (en) * | 2017-12-14 | 2018-08-10 | 国网山东省电力公司龙口市供电公司 | A kind of hanging apparatus for box-type substation |
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN108584727A (en) * | 2018-07-16 | 2018-09-28 | 浙江艾乐琪新材料有限公司 | A kind of sink lifting appliance and hoisting method |
| CN111332969A (en) * | 2020-03-01 | 2020-06-26 | 李宗利 | Assembled wall hoist device that stability is good |
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| CN111977528A (en) | 2020-11-24 |
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Effective date of registration: 20210330 Address after: 402260 Chongqing Jiangjin district de sense Industrial Park Applicant after: Chongqing Dingshan lifting equipment Co.,Ltd. Address before: Kemai (Hangzhou) lifting machinery Co., Ltd., No. 3350, South Ring Road, Binjiang District, Hangzhou City, Zhejiang Province, 310000 Applicant before: Shen Weisha |
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Address after: No. 135 Donghe Road, Jiangjin District, Chongqing, 400000 Patentee after: Chongqing Jinxiang Keni Lifting Apparatus Sales Co.,Ltd. Address before: 402260 Chongqing Jiangjin district de sense Industrial Park Patentee before: Chongqing Dingshan lifting equipment Co.,Ltd. |
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