CN112744739B - Stringing construction device for power equipment installation - Google Patents
Stringing construction device for power equipment installation Download PDFInfo
- Publication number
- CN112744739B CN112744739B CN202011512469.5A CN202011512469A CN112744739B CN 112744739 B CN112744739 B CN 112744739B CN 202011512469 A CN202011512469 A CN 202011512469A CN 112744739 B CN112744739 B CN 112744739B
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- fixedly connected
- gear
- base
- frame
- grooves
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Abstract
The invention discloses a stringing construction device for power equipment installation, which comprises a base, wherein a frame is installed on the base, guide blocks are sleeved outside four guide rods, a placing box is fixedly connected among the four guide blocks together, anti-falling self-locking pieces are arranged between the placing box and the four guide rods, a lifting mechanism is arranged between the four anti-falling self-locking pieces and the upper end of the frame, a sliding groove is formed in the bottom of the base, a sliding plate is connected in the sliding groove in a sliding manner, four universal wheels are installed at the bottom of the sliding plate, and a driving mechanism is arranged between the sliding plate and the inner top of the sliding groove. The anti-falling device is reasonable in structure, can stably support the base and the frame, ensures the stability of the base and the frame during working, can prevent the placing box from shaking, ensures the stable installation of power equipment, has an anti-falling function, can effectively avoid accidents, and reduces economic loss.
Description
Technical Field
The invention relates to the technical field of power equipment installation, in particular to a stringing construction device for power equipment installation.
Background
The power equipment is a power generation and consumption system composed of links of power generation, power transmission, power transformation, power distribution, power utilization and the like, and mainly comprises two categories of power generation equipment and power supply equipment, wherein the power generation equipment mainly comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator, an ignition machine, a transformer and the like, the power supply equipment mainly comprises power transmission lines, transformers, contactors and the like with various voltage grades, and the installation of various power equipment is not separated from a power equipment installation device.
The existing electric equipment installation device is easy to generate large shake in the horizontal direction when electric equipment is installed, so that the electric equipment deviates from the installation position, and the installation efficiency of the electric equipment is low; meanwhile, when the power equipment installation and construction device in the prior art is used, the stability of the whole device support is not enough, certain potential safety hazards exist when the device is installed, and the existing power equipment installation and construction device is not provided with an anti-falling device, so that the stringing construction device for power equipment installation is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the stringing construction device for mounting the power equipment, which can stably support a base and a frame, ensure the stability of the stringing construction device during working, prevent a placing box from shaking, ensure the stable mounting of the power equipment, and have an anti-falling function, thereby effectively avoiding accidents and reducing the economic loss.
In order to achieve the purpose, the invention adopts the following technical scheme:
a stringing construction device for power equipment installation comprises a base, wherein a frame is installed on the base, four guide rods are installed in the frame, guide blocks are sleeved outside the four guide rods, a placing box is fixedly connected between the four guide blocks, anti-falling self-locking pieces are arranged between the placing box and the four guide rods, a lifting mechanism is arranged between the four anti-falling self-locking pieces and the upper end of the frame, a sliding groove is formed in the bottom of the base, a sliding plate is connected in the sliding groove in a sliding manner, four universal wheels are installed at the bottom of the sliding plate, a driving mechanism is arranged between the sliding plate and the inner top of the sliding groove, installation through grooves are formed in the two ends of the sliding plate in a penetrating manner, rack plates are installed in the two installation through grooves, installation grooves identical to the sliding groove are formed in the two ends of the base in a penetrating manner, supporting legs connected with the rack plates are installed in the two installation grooves, and a supporting disk is mounted at the other end of each supporting leg.
Preferably, the anti-falling self-locking piece comprises a fixed block fixed on the placing box, a bolt connected with the fixed block in a sliding manner is arranged on the fixed block in a penetrating manner, a plurality of anti-falling grooves are formed in the guide rod and distributed vertically and uniformly, a limit block is fixedly connected to the bolt, a support block is fixedly connected to the fixed block and supports against the two support blocks, a spring is fixedly connected between the limit block and the fixed block and sleeved on the bolt, a pull ring is fixedly connected to one end of the bolt far away from the limit block, and a steel rope lock is installed on the pull ring.
Preferably, elevating system is including installing first servo motor and the mounting bracket on the frame, install the receipts line roller on the mounting bracket, receive the coaxial fixed connection of line roller and first servo motor's output, receive around being equipped with the rolling rope on the line roller, the rolling rope is connected with the wire rope lock.
Preferably, actuating mechanism is including installing the second servo motor at the top in the sliding tray, the first gear of output fixedly connected with of second servo motor, the interior top of sliding tray is rotated and is connected with two screw thread section of thick bamboos, two equal threaded connection has the screw rod, two in the screw thread section of thick bamboo the lower extreme of screw rod all with the upper end fixed connection of sliding plate, two the equal fixedly connected with first drive wheel in outside of screw thread section of thick bamboo, two first drive wheel is connected through first belt, is close to fixedly connected with second gear on the screw thread section of thick bamboo of first gear, the second gear meshes with first gear mutually.
Preferably, a disc and a third gear are rotatably mounted in the mounting groove, second driving wheels coaxially connected with the disc and the third gear are fixedly connected to the disc and the third gear, the two second driving wheels are connected through a second belt, the rack plate is meshed with the third gear, and the supporting legs are fixedly connected with the disc.
Preferably, the upper end of base is run through and is equipped with two communicating grooves that communicate with the sliding tray, two the rack board runs through the communicating groove setting of homonymy respectively.
Preferably, the supporting plate is hinged to the supporting leg, and the bottom of the supporting plate is provided with anti-skid grains.
Preferably, the frame has a rectangular frame shape, and the frame is mounted on the base by bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. the work of second servo motor drives first gear and second gear revolve, can realize two screw rods rebound, and then realizes sliding plate and universal wheel rebound, accomodates the sliding tray in, until base and ground offset, can support the frame steadily through the base, and the supporting disk offsets with ground this moment, and through the cooperation of supporting leg and supporting disk, can carry out more stable support to the base once more to guarantee the stability of frame.
2. First servo motor work drives and receives the line roller and rotates to can carry out the rolling to the rolling rope, under the effect of wire rope lock, can realize placing case rebound, through the cooperation of guide bar and guide block, make and place the case and be difficult for rocking when reciprocating, stability is better.
3. If the steel rope lock or the winding rope is broken, the pull ring is not subjected to tension any more, the bolt can move under the action of the spring and is abutted against the guide rod, and when the bolt is opposite to the anti-falling groove, the bolt is inserted into the anti-falling groove, so that the placing box can be limited and cannot move any more; meanwhile, if one of the steel rope locks is broken, the placing box is also limited to move, so that the effect of prompting in advance is achieved.
In conclusion, the anti-falling device is reasonable in structure, can stably support the base and the frame, ensures the stability of the base and the frame during working, can prevent the placing box from shaking, ensures the stable installation of power equipment, has an anti-falling function, can effectively avoid accidents, and reduces economic loss.
Drawings
Fig. 1 is a schematic structural view of a stringing construction device for installing electrical equipment according to the present invention;
fig. 2 is a plan view of a sliding plate in the overhead line working apparatus for installation of electric power equipment according to the present invention;
fig. 3 is an enlarged view of a structure at a position a in the stringing and constructing device for mounting electrical equipment, which is provided by the invention;
fig. 4 is a schematic connection diagram of a driving mechanism in the overhead line construction equipment for mounting electric power equipment according to the present invention;
fig. 5 is a schematic connection diagram of a third gear in the stringing device for mounting an electrical device according to the present invention.
In the figure: the automatic wire winding machine comprises a base, a frame, a guide rod 3, a 4 placement box, a 5 guide block, a 6 first servo motor, a 7 mounting frame, an 8 wire winding roller, a 9 steel rope lock, a 10 winding rope, an 11 anti-falling groove, a 12 sliding groove, a 13 sliding plate, a 14 universal wheel, a 15 mounting groove, a 16 communication groove, a 17 rack plate, 18 supporting legs, 19 supporting plates, a 20 mounting through groove, a 21 bolt, a 22 pull ring, a 23 fixing block, a 24 limiting block, a 25 spring, a 26 supporting block, a 27 second servo motor, a 28 first gear, a 29 second gear, a 30 threaded cylinder, a 31 screw, a 32 first transmission wheel, a 33 first belt, a 34 second transmission wheel, a 35 second belt, a 36 disk and a 37 third gear.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-5, the stringing construction device for mounting the power equipment comprises a base 1, wherein a frame 2 is mounted on the base 1, four guide rods 3 are mounted in the frame 2, and the four guide rods 3 are distributed in a rectangular shape; the outside of four guide bars 3 all is equipped with guide block 5 by the cover, and common fixedly connected with places case 4 between four guide blocks 5, places case 4 and is connected with guide block 5 through the connecting piece, and the connecting piece can be fixing bolt etc..
Anti-falling self-locking pieces are arranged between the placing box 4 and the four guide rods 3, each anti-falling self-locking piece comprises a fixed block 23 fixed on the placing box 4, a bolt 21 in sliding connection with the fixed block 23 penetrates through the fixed block 23, a plurality of anti-falling grooves 11 are formed in the guide rods 3, the anti-falling grooves 11 are vertically and uniformly distributed, a limiting block 24 is fixedly connected onto the bolt 21, supporting blocks 26 are fixedly connected onto the fixed block 23, the limiting block 24 abuts against the two supporting blocks 26, a spring 25 is fixedly connected between the limiting block 24 and the fixed block 23, the spring 25 is sleeved on the bolt 21, one end, far away from the limiting block 24, of the bolt 21 is fixedly connected with a pull ring 22, and a steel rope lock 9 is installed on the pull ring 22; when the steel rope lock 9 does not produce pulling force on the pull ring 22 any more, the insertion of the bolt 21 into the anti-falling groove 11 can be realized under the action of the spring 25, so that the placing box 4 can be limited and cannot move downwards.
Four are prevented falling and are equipped with elevating system between from locking piece and frame 2's upper end, elevating system is including installing first servo motor 6 and the mounting bracket 7 on frame 2, install on the mounting bracket 7 and receive line roller 8, receive line roller 8 and first servo motor 6's the coaxial fixed connection of output, receive around being equipped with rolling rope 10 on the line roller 8, rolling rope 10 is connected with wire rope lock 9, rolling rope 10 is the steel cable, rolling rope 10 can pass through connections such as buckle with wire rope lock 9.
The bottom of base 1 is equipped with sliding tray 12, and sliding connection has sliding plate 13 in sliding tray 12, and four universal wheels 14 are installed to sliding plate 13's bottom, conveniently remove base 1 and frame 2 through universal wheel 14 to can increase its application range, and the flexibility.
Be equipped with actuating mechanism between the interior top of sliding plate 13 and sliding tray 12, actuating mechanism is including installing the second servo motor 27 at the top in sliding tray 12, the first gear 28 of output fixedly connected with of second servo motor 27, the interior top of sliding tray 12 is rotated and is connected with two screw thread section of thick bamboo 30, equal threaded connection has screw rod 31 in two screw thread section of thick bamboo 30, the lower extreme of two screw rods 31 all with the upper end fixed connection of sliding plate 13, the equal fixedly connected with first drive wheel 32 in the outside of two screw thread section of thick bamboo 30, two first drive wheels 32 are connected through first belt 33, fixedly connected with second gear 29 on the screw thread section of thick bamboo 30 near first gear 28, second gear 29 meshes with first gear 28 mutually.
Both ends of the sliding plate 13 are provided with through installation grooves 20 in a penetrating manner, the rack plates 17 are installed in the two through installation grooves 20, the two communicating grooves 16 communicated with the sliding groove 12 are arranged at the upper end of the base 1 in a penetrating manner, and the two rack plates 17 are respectively arranged in a penetrating manner through the communicating grooves 16 on the same side so as to ensure the movement of the rack plates 17.
The two ends of the base 1 are respectively provided with a mounting groove 15 which is the same as the sliding groove 12 in a penetrating manner, supporting legs 18 which are connected with rack plates 17 on the same side are respectively mounted in the two mounting grooves 15, a disc 36 and a third gear 37 are rotatably mounted in the mounting grooves 15, the disc 36 and the third gear 37 are respectively and fixedly connected with a second driving wheel 34 which is coaxially connected with the disc 36 and the third gear 37, the two second driving wheels 34 are connected through a second belt 35, the rack plates 17 are meshed with the third gear 37, and the supporting legs 18 are fixedly connected with the disc 36; the other ends of the two support legs 18 are respectively provided with a support plate 19, the frame 2 is in a rectangular frame shape, and the frame 2 is arranged on the base 1 through bolts.
In the invention, when power equipment needs to be installed, a worker pushes the frame 2, the base 1 and the frame 2 can move under the action of the universal wheels 14, when the power equipment moves to a required position, the worker starts the second servo motor 27, the second servo motor 27 works to drive the first gear 28 and the second gear 29 to rotate, so that the threaded cylinder 30 rotates, the two threaded cylinders 30 can rotate under the transmission of the first transmission wheel 32 and the first belt 33, the two screws 31 can move upwards, so that the sliding plate 13 and the universal wheels 14 move upwards and are accommodated in the sliding groove 12 until the base 1 abuts against the ground, and the frame 2 can be stably supported through the base 1;
the sliding plate 13 moves upwards to drive the rack plate 17 to move upwards, the rack plate 17 moves upwards to drive the third gear 37 and the second transmission wheel 34 to rotate, the second transmission wheel 34 and the disc 36 can rotate under the transmission of the second transmission wheel 34 and the second belt 35, the disc 36 rotates to drive the supporting legs 18 and the supporting disc 19 to rotate, when the base 1 abuts against the ground, the supporting disc 19 abuts against the ground, and the base 1 can be stably supported again through the matching of the supporting legs 18 and the supporting disc 19, so that the stability of the frame 2 is ensured;
then, a worker places the power equipment in the placing box 4 and starts the first servo motor 6, the first servo motor 6 works to drive the wire winding roller 8 to rotate, so that the winding rope 10 can be wound, the placing box 4 can move upwards under the action of the steel rope lock 9, and the placing box 4 is not prone to shaking when moving upwards and downwards through the matching of the guide rod 3 and the guide block 5, so that the stability is better;
if the steel rope lock 9 or the winding rope 10 is broken, the pull ring 22 is not pulled, the bolt 21 can move the bolt 21 under the action of the spring 25, the bolt 21 abuts against the guide rod 3, and when the bolt 21 opposes the anti-falling groove 11, the bolt 21 is inserted into the anti-falling groove 11, so that the placing box 4 can be limited and is not moved any more, and thus, a worker closes the first servo motor 6 and can replace the broken steel rope lock 9 or the winding rope 10, so that the placing box 4 can be effectively prevented from falling, equipment and power equipment are not easy to damage, and economic loss is reduced; meanwhile, if one of the steel rope locks 9 is broken, the placing box 4 is also limited to move, so that the function of prompting in advance is achieved;
when the base 1 is moved again, the second servo motor 27 is started to rotate reversely.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The stringing construction device for the installation of the power equipment comprises a base (1) and is characterized in that a frame (2) is installed on the base (1), four guide rods (3) are installed in the frame (2), guide blocks (5) are sleeved outside the four guide rods (3), a placing box (4) is fixedly connected between the four guide blocks (5) together, anti-falling self-locking pieces are arranged between the placing box (4) and the four guide rods (3), a lifting mechanism is arranged between the four anti-falling self-locking pieces and the upper end of the frame (2), a sliding groove (12) is arranged at the bottom of the base (1), a sliding plate (13) is connected in the sliding groove (12) in a sliding manner, four universal wheels (14) are installed at the bottom of the sliding plate (13), and a driving mechanism is arranged between the sliding plate (13) and the inner top of the sliding groove (12), mounting through grooves (20) are formed in two ends of the sliding plate (13) in a penetrating manner, rack plates (17) are mounted in the two mounting through grooves (20), mounting grooves (15) identical to the sliding grooves (12) are formed in two ends of the base (1) in a penetrating manner, supporting legs (18) connected with the rack plates (17) on the same side are mounted in the two mounting grooves (15), and supporting discs (19) are mounted at the other ends of the two supporting legs (18);
the driving mechanism comprises a second servo motor (27) arranged at the inner top of the sliding groove (12), the output end of the second servo motor (27) is fixedly connected with a first gear (28), the inner top of the sliding groove (12) is rotatably connected with two threaded cylinders (30), the two threaded cylinders (30) are internally and uniformly in threaded connection with screws (31), the lower ends of the two screws (31) are fixedly connected with the upper end of the sliding plate (13), the outer parts of the two threaded cylinders (30) are respectively and fixedly connected with first driving wheels (32), the two first driving wheels (32) are connected through first belts (33), a second gear (29) is fixedly connected to the threaded cylinder (30) close to the first gear (28), and the second gear (29) is meshed with the first gear (28);
a disc (36) and a third gear (37) are rotatably mounted in the mounting groove (15), second transmission wheels (34) coaxially connected with the disc (36) and the third gear (37) are fixedly connected to the disc (36) and the third gear (37), the two second transmission wheels (34) are connected through a second belt (35), the rack plate (17) is meshed with the third gear (37), and the supporting legs (18) are fixedly connected with the disc (36);
the upper end of the base (1) is provided with two communicating grooves (16) communicated with the sliding groove (12) in a penetrating manner, and the two rack plates (17) are respectively arranged in a penetrating manner through the communicating grooves (16) on the same side;
the supporting plate (19) is hinged with the supporting legs (18), and anti-skid grains are arranged at the bottom of the supporting plate (19).
2. The stringing construction device for power equipment installation according to claim 1, wherein the anti-falling self-locking member comprises a fixing block (23) fixed on the placing box (4), a bolt (21) slidably connected with the fixing block (23) penetrates through the fixing block (23), a plurality of anti-falling grooves (11) are formed in the guide rod (3), the anti-falling grooves (11) are vertically and uniformly distributed, a limiting block (24) is fixedly connected to the bolt (21), a supporting block (26) is fixedly connected to the fixing block (23), the limiting block (24) is abutted against the two supporting blocks (26), a spring (25) is fixedly connected between the limiting block (24) and the fixing block (23), the spring (25) is sleeved on the bolt (21), and a pull ring (22) is fixedly connected to one end of the bolt (21) far away from the limiting block (24), and a steel rope lock (9) is arranged on the pull ring (22).
3. The stringing construction device for installing the power equipment according to claim 2, wherein the lifting mechanism comprises a first servo motor (6) and a mounting rack (7) which are installed on the frame (2), a wire take-up roller (8) is installed on the mounting rack (7), the wire take-up roller (8) is fixedly connected with an output end of the first servo motor (6) in a coaxial mode, a winding rope (10) is wound on the wire take-up roller (8), and the winding rope (10) is connected with a steel rope lock (9).
4. The trolley wire construction device for electric power equipment installation as claimed in claim 1, wherein the frame (2) has a rectangular frame shape, and the frame (2) is installed on the base (1) by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512469.5A CN112744739B (en) | 2020-12-19 | 2020-12-19 | Stringing construction device for power equipment installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512469.5A CN112744739B (en) | 2020-12-19 | 2020-12-19 | Stringing construction device for power equipment installation |
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| Publication Number | Publication Date |
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| CN112744739A CN112744739A (en) | 2021-05-04 |
| CN112744739B true CN112744739B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011512469.5A Active CN112744739B (en) | 2020-12-19 | 2020-12-19 | Stringing construction device for power equipment installation |
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| CN (1) | CN112744739B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432087B (en) * | 2021-06-10 | 2022-10-04 | 深圳市尚为照明有限公司 | LED road lighting monitoring system |
| CN113716479B (en) * | 2021-07-27 | 2023-05-12 | 广州灵帕机电科技有限公司 | Weight horizontal alignment and vertical guide mechanism and method thereof |
| CN113991511A (en) * | 2021-09-27 | 2022-01-28 | 国网河南省电力公司沁阳市供电公司 | Transmission line high altitude transmission device based on infrared direction |
| CN113889942A (en) * | 2021-10-19 | 2022-01-04 | 广东欲丰电器制造有限公司 | Adjustable taut concatenation formula cable testing bridge for electrical engineering |
| CN114221265B (en) * | 2021-12-24 | 2022-07-12 | 刘彦奇 | Electric wire erecting mechanism for electrical engineering construction and use method thereof |
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| GB441280A (en) * | 1934-07-16 | 1936-01-16 | Jakob Marx | Improvements in lifting platforms, particularly for motor cars |
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| JPH09243435A (en) * | 1996-03-11 | 1997-09-19 | Kaijo Corp | Lift for ultrasonic sensor |
| CN109371951B (en) * | 2018-11-20 | 2020-07-28 | 长江三峡通航管理局 | Ship chamber water replenishing and draining system and method for ship lift |
| CN111825007B (en) * | 2020-06-23 | 2022-03-04 | 内蒙古华兴电力建设有限公司 | Anti-falling lifting device for installation of power equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB441280A (en) * | 1934-07-16 | 1936-01-16 | Jakob Marx | Improvements in lifting platforms, particularly for motor cars |
| JPH07137572A (en) * | 1993-11-15 | 1995-05-30 | Kaoru Yasuda | Vehicle carrying truck |
| CN105523510A (en) * | 2014-09-30 | 2016-04-27 | 苏州沃斯汀电梯有限公司 | Lifting platform anti-dropping device and lifting platform equipment comprising same |
| CN107894090A (en) * | 2017-11-14 | 2018-04-10 | 天津亚通制冷设备股份有限公司 | A kind of upper air-out type air-cooler |
| CN207900492U (en) * | 2017-12-22 | 2018-09-25 | 科越工程(苏州）有限公司 | A kind of automatic welder |
| CN209396820U (en) * | 2018-11-22 | 2019-09-17 | 范少芳 | A kind of anti-fall construction material lifting means |
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| CN112744739A (en) | 2021-05-04 |
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