CN112265917A - Suspension type manipulator hoisting device - Google Patents
Suspension type manipulator hoisting device Download PDFInfo
- Publication number
- CN112265917A CN112265917A CN202011094159.6A CN202011094159A CN112265917A CN 112265917 A CN112265917 A CN 112265917A CN 202011094159 A CN202011094159 A CN 202011094159A CN 112265917 A CN112265917 A CN 112265917A
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- CN
- China
- Prior art keywords
- guide rail
- driving
- fixed
- mobile station
- motor
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
Abstract
Suspension type manipulator hoisting accessory for conveniently obtain the sample frame from the liquid nitrogen container. It includes: the mounting rack is fixed on the upper part of the wall; the guide rail is fixed on the mounting frame and arranged along the placement direction of the liquid nitrogen tank; the first moving platform is arranged on the guide rail in a sliding mode, a first driving mechanism for driving the first moving platform to move along the transverse direction is arranged between the guide rail and the first moving platform, and the transverse direction is the placing direction of the liquid nitrogen tank; the second moving table is arranged on the first moving table in a sliding mode, and a second driving mechanism for driving the second moving table to move along the longitudinal direction is arranged between the first moving table and the second moving table; the hook is movably arranged on the second mobile station, and a retraction mechanism for driving the hook to move vertically is arranged on the second mobile station; and the remote controller is in wireless communication with the first driving mechanism, the second driving mechanism and the retraction mechanism. The invention can conveniently take out the sample rack in the liquid nitrogen tank.
Description
Technical Field
The invention relates to the technical field of hoisting devices, in particular to a suspension type manipulator hoisting device for obtaining a sample rack from a liquid nitrogen tank in the biological sample freezing technology.
Background
The freezing technology of biological tissues and cells can maintain the activity of biological samples, such as human egg cells, semen and the like, which are generally stored in sample tubes, and then the sample tubes are placed on a sample rack, the sample rack is placed in a liquid nitrogen tank filled with liquid nitrogen, and the temperature in the liquid nitrogen tank is-196 ℃. When a certain sample needs to be taken, the sample frame needs to be taken out from the liquid nitrogen tank, in order to avoid frostbite of hands of an operator, the operator generally holds an iron hook or wears protective gloves to take the sample frame off from the inner wall of the liquid nitrogen tank, but because the weight of the sample frame is large (generally about 30 Kg), the sample frame is obviously time-consuming and labor-consuming to be taken by the bare hands of the operator.
Disclosure of Invention
The invention aims to provide a suspension type manipulator lifting device which is used for conveniently obtaining a sample rack from a liquid nitrogen tank.
The technical scheme adopted by the invention for solving the technical problems is as follows: suspension type manipulator hoisting accessory, characterized by, it includes:
the mounting rack is fixed on the upper part of the wall;
the guide rail is fixed on the mounting frame and arranged along the placement direction of the liquid nitrogen tank;
the first moving platform is arranged on the guide rail in a sliding mode, a first driving mechanism for driving the first moving platform to move along the transverse direction is arranged between the guide rail and the first moving platform, and the transverse direction is the placing direction of the liquid nitrogen tank;
the second moving table is arranged on the first moving table in a sliding mode, and a second driving mechanism for driving the second moving table to move along the longitudinal direction is arranged between the first moving table and the second moving table;
the hook is movably arranged on the second mobile station, and a retraction mechanism for driving the hook to move vertically is arranged on the second mobile station;
and the remote controller is in wireless communication with the first driving mechanism, the second driving mechanism and the retraction mechanism.
Further, the mounting bracket includes the support of a plurality of equidistant settings, and the support is fixed on the wall.
Furthermore, the guide rail is a linear guide rail, the first driving mechanism comprises a driving chain wheel, a driven chain wheel, a chain and a first motor, the driving chain wheel and the driven chain wheel are rotatably installed in the guide rail, the chain is arranged between the driving chain wheel and the driven chain wheel, the first motor drives the driving chain wheel, and a synchronizing block fixedly connected with the chain is arranged at the bottom of the first moving table.
Further, a part of the second mobile station is disposed inside the first mobile station.
Furthermore, the second driving mechanism comprises a lead screw rotatably mounted on the inner side of the first moving platform, a driven gear fixed on the lead screw, a second motor fixed on the inner wall of the first moving platform, a driving gear fixed at the output end of the second motor and meshed with the driven gear, and a lead screw nut fixed inside the second moving platform, wherein the lead screw nut is matched with the lead screw.
Furthermore, the retraction mechanism comprises a third motor fixed in the second mobile station, a wire wheel fixed at the output end of the third motor, and a pull wire wound on the wire wheel, wherein the lower end of the pull wire is fixedly connected with the hook.
Furthermore, a holding rod is arranged between the hook and the pull wire.
Further, the guide rail is arranged below the mounting frame, a fixing plate is fixed to the top of the guide rail, and the guide rail is fixedly connected with the mounting frame through the fixing plate.
Furthermore, the guide rail is "L" shape guide rail, and the contained angle setting of guide rail is in wall angle department, and first actuating mechanism is including setting up drive sprocket and driven sprocket in the guide rail, setting up the chain between drive sprocket and driven sprocket, setting up the leading sprocket in the contained angle department of guide rail, and leading sprocket has two, and the chain is double-deck "L" shape under two leading sprocket's effect, first mobile station and outer chain fixed connection.
Furthermore, a laser pen is fixed at the bottom of the first mobile station, the laser pen is in a normally-on state, the laser pen emits light in the vertical direction, and the distance between the light and the stay wire is 1-3 cm.
The invention has the beneficial effects that: the suspension type manipulator lifting device provided by the invention is simple in structure and convenient to operate, and when the suspension type manipulator lifting device is used, the hook can be moved to the position above the liquid nitrogen tank to be extracted only by remotely controlling the working state of the first motor, the second motor or the third motor through the remote controller, and then the sample rack can be extracted after the sample rack is hooked by the hook.
Drawings
FIG. 1 is a front view of a first embodiment of the present invention;
FIG. 2 is a schematic view of the assembly of the bracket and the guide rail;
FIG. 3 is a schematic diagram of a first mobile station moving left and right;
FIG. 4 is a schematic view of the assembly of a second mobile station with a first mobile station;
FIG. 5 is a schematic diagram of the forward and backward movement of a second mobile station;
FIG. 6 is a schematic view of the hook moving up and down;
FIG. 7 is a schematic view illustrating a usage status of the first embodiment of the present invention;
FIG. 8 is a schematic view of a gripping bar disposed between the hanger and the pull wire;
FIG. 9 is a side view of a second embodiment of the present invention;
FIG. 10 is a schematic structural view of a first drive mechanism according to a second embodiment;
fig. 11 is a schematic assembly diagram of a second mobile station and a first mobile station according to the second embodiment;
fig. 12 is a sectional view of a first mobile station in the second embodiment;
FIG. 13 is a top view of a third embodiment of the present invention;
FIG. 14 is a sectional view of a guide rail according to a third embodiment;
in the figure: the automatic laser pen comprises a support 1, 11 reinforcing ribs, 12 racks, 2 guide rails, 20 first motors, 21 driving sprockets, 22 driven sprockets, 23 chains, 24 fixing plates, 25 support lugs, 26 worms, 27 worm gears, 28 driving gears, 29 guide sprockets, 3 first moving tables, 30 outlets, 31 synchronizing blocks, 32 lead screws, 33 driven gears, 34 driving gears, 35 second motors, 36 bearing seats, 37 strip-shaped holes, 38 sliding blocks, 39 lithium batteries, 4 second moving tables, 41 lead screw nuts, 42 through holes, 5 third motors, 51 wire wheels, 52 pull wires, 53 hooks, 54 holding rods, 55 motor mounting plates, 6 walls, 7 liquid nitrogen tanks and 8 laser pens.
Detailed Description
As shown in fig. 1 to 14, the present invention mainly includes a mounting frame, a guide rail 2, a first mobile station 3, a second mobile station 4, a first driving mechanism, a second driving mechanism, a hook 53 and a retracting mechanism, and the present invention is divided into three embodiments, which will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 8, a lifting apparatus according to a first embodiment of the present invention includes a mounting frame, a guide rail 2, a first mobile station 3, a second mobile station 4, a hook 53, and a retracting mechanism. As shown in fig. 1 and 2, the structure of the mounting frame is schematically illustrated. The mounting bracket comprises a plurality of L-shaped supports 1 which are arranged at equal intervals, and the supports are fixed on the wall through collision bolts. The support can be the angle steel, is equipped with strengthening rib 11 in the support inboard that is located both ends to the structural strength of whole mounting bracket is strengthened. The plurality of brackets can be mutually independent and can also be fixedly connected together through angle steel.
As shown in fig. 2, the guide rail 2 is provided on the mounting bracket, and the guide rail is fixed in contact with the lower portion of the bracket. The guide rail is fixedly arranged on the wall through the mounting rack, the first mobile platform 3 is arranged on the guide rail in a left-right sliding manner, and a first driving mechanism for driving the first mobile platform to move linearly along the transverse direction (slide left and right) is arranged on the guide rail.
As shown in fig. 3, the first driving mechanism includes a driving sprocket 21 and a driven sprocket 22 rotatably installed inside the guide rail, a chain 23 disposed between the driving sprocket and the driven sprocket, and a first motor 20 disposed inside the guide rail to drive the driving sprocket to rotate. A pair of synchronizing blocks 31 are fixed at the bottom of the first mobile station and fixedly connected with the chain, as shown in fig. 3, when the first motor works, the first mobile station can be driven to move left and right by the driving sprocket, the driven sprocket and the chain. The first driving mechanism can also comprise two synchronous gears rotatably arranged on the inner side of the guide rail, a synchronous belt arranged between the synchronous gears and a first motor arranged in the guide rail and used for driving one of the synchronous gears to rotate.
As shown in fig. 4, the first movable stage has a rectangular parallelepiped shape, an outlet 30 is provided in a front wall of the first movable stage, a second movable stage 4 is slidably mounted in the first movable stage, the second movable stage is movable forward and backward relative to the first movable stage, and a second driving mechanism for driving the second movable stage to linearly move in a longitudinal direction (forward and backward directions) is provided in the first movable stage.
As shown in fig. 4, the second driving mechanism includes a screw 32 rotatably mounted in the first movable stage through a bearing block 36, a driven gear 33 fixed to the screw, a second motor 35 fixed to an inner wall of the first movable stage, and a driving gear 34 fixed to an output end of the first motor and engaged with the driven gear, and a screw nut 41 fixed to an inside of the second movable stage and engaged with the screw. When the second mobile station is completely arranged on the inner side of the first mobile station, a cavity is arranged between the rear wall of the second mobile station and the front side wall of the first mobile station, and the second motor, the driving gear and the driven gear are all arranged in the cavity. A through hole 42 is provided in the rear side wall of the second mobile station, through which the rear end of the screw rod extends into the cavity. A strip-shaped hole 37 is arranged at the bottom of the second mobile station, and the upper part of the front bearing seat passes through the strip-shaped hole and then extends into the inner side of the second mobile station. The lower portion of the front bearing block is fixed to the lower side wall of the second movable stage, and as shown in fig. 5, the second movable stage can be driven to move back and forth inside the first movable stage by the second driving mechanism, and the second movable stage can be moved out of the first movable stage through the outlet.
As shown in fig. 5 and 6, a third motor 5 is provided in the front end of the second mobile station, a wire wheel 51 is fixed to the output end of the third motor, a pull wire 52 is wound around the wire wheel, a hook 53 is fixed to the lower end of the pull wire, and the third motor, the wire wheel and the pull wire form a retraction mechanism, and the retraction mechanism can drive the hook to move up and down. The first motor, the second motor and the third motor are in signal connection with the remote controller, and the working states of the first motor, the second motor and the third motor can be controlled through the remote controller.
As shown in fig. 7, the mounting bracket of the present invention is fixed to a wall 6, and a liquid nitrogen tank 7 is usually placed at the root of the wall. When a sample rack in a certain liquid nitrogen tank needs to be taken, the first mobile station is driven to move left and right relative to the guide rail through the remote controller according to needs until the first mobile station is positioned above the corresponding liquid nitrogen tank; the second mobile station is driven to move back and forth relative to the first mobile station through a remote controller according to requirements until the hook is positioned right above the corresponding liquid nitrogen tank opening; then, the hook is driven to move downwards through the remote controller until the hook penetrates through the opening of the liquid nitrogen tank and then extends into the inner side of the liquid nitrogen tank, and at the moment, the to-be-sampled sample rack is hooked through the hook. And finally, the third motor is controlled to reversely act through the remote controller, so that the hook moves upwards, and the sample rack in the liquid nitrogen tank is lifted out. The in-process that the regulation couple is located directly over the liquid nitrogen container jar mouth, the action order of first, second and third motor is not fixed, the action order of first, second and third motor to the couple can be fast accurate remove to required position be accurate.
The liquid nitrogen storage tank is fixedly arranged on a wall and is positioned at the high position indoors, and daily work such as walking of indoor personnel where the liquid nitrogen storage tank is located and checking of indoor liquid nitrogen storage tank conditions is not influenced. The sample frame is lifted through the motor, and compared with a mode that the sample frame is manually taken by a person in the prior art, manpower and operation time are greatly saved. For further convenience, a lithium battery is arranged on the first mobile station, the lithium battery is electrically connected with the first motor, the second motor and the third motor, and the lithium battery can be charged to provide electric energy for the first motor, the second motor and the third motor. The lithium battery is provided with an interface which is convenient to be connected with the charger, and the charger is fixed on the wall and connected with the socket. Therefore, when the lithium battery is short of electricity, the first mobile station is moved to the charger at the tail end of the guide rail, and the lithium battery and the charger are plugged together. Because the height of first mobile station is higher than general operator's height, be convenient for being connected of lithium cell and charger, can set up the stock on the plug of charger, handheld stock stretches into the charger plug in the interface on the lithium cell.
As shown in FIG. 8, a holding rod 54 is provided between the pull wire and the hook to facilitate smooth and rapid hooking of the hook to the sample holder. The holding rod is a straight rod in essence, and when the liquid nitrogen tank is used, the hook extends into the liquid nitrogen tank by holding the holding rod, so that the sample rack on the inner wall of the liquid nitrogen tank is hooked, and the operation is very convenient. In order to facilitate the positioning of the hook, namely, an operator does not need to walk back and forth to determine the position of the hook, a laser pen 8 is fixed at the bottom of the first mobile station and is in a normally-on state, laser light emitted by the laser pen is in a vertical direction and is parallel to the stay wire, and the distance between the light emitted by the laser pen and the stay wire is 1-3cm, so that the operator can stand at the fixed position to clearly observe whether the hook is positioned right above the liquid nitrogen tank to be extracted.
As shown in fig. 9 to 12, a second embodiment of the present invention is different from the first embodiment mainly in that the guide rail, the first moving stage and the second moving stage are located below the mounting frame in the second embodiment. The structure of the mounting frame of the second embodiment is substantially the same as that of the mounting frame of the first embodiment, and the only difference is that a reinforcing rib 11 is arranged between two ends of each bracket in the second embodiment.
In the second embodiment, the guide rails are arranged in a front-back manner, a plurality of groups of fixing plates 24 are arranged at the top of the guide rails, and bolts are installed between the fixing plates and the bottom of the mounting frame, so that the guide rails and the mounting frame are fixedly connected. A pair of T-shaped sliders 38 are fixed to the top of the first movable stage, and are disposed inside the guide rail and slidably connected to the guide rail. In this way, the mounting frame, the guide rail and the first mobile station are sequentially arranged from top to bottom, the first mobile station is suspended below the mounting frame and can move left and right relative to the mounting frame, and in order to drive the first mobile station to move, as shown in fig. 10, the first driving mechanism comprises a first motor 20 fixed at the top of the first mobile station, a worm 26 fixed at the output end of the first motor, a pair of lugs 25 arranged at the top of the first mobile station, a worm wheel 27 and a driving gear 28 which are rotatably installed between the two lugs and coaxially arranged, and a rack 12 fixed at the bottom of the mounting frame and meshed with the driving gear, and when the first motor works, the first mobile station can be driven to linearly move along the guide rail.
As shown in fig. 11, unlike the first mobile station of the first embodiment in which the length of the first mobile station is greater than that of the second mobile station, the second mobile station of the second embodiment has a length greater than that of the first mobile station, and the middle portion of the second mobile station is disposed inside the first mobile station, and both ends of the second mobile station protrude from the first mobile station. The second driving mechanism for driving the second mobile station to move back and forth comprises a second motor 35 fixed on the inner wall of the first mobile station and a driving gear 34 fixed at the output end of the second motor, wherein teeth are arranged on the side wall of the second mobile station, and the driving gear is meshed with the second mobile station, so that the second mobile station can be driven to move back and forth under the action of the second motor.
As shown in fig. 12, in order to save space, the second mobile station is disposed in the middle of the first mobile station, lithium batteries 39 are disposed in the inner cavities of the left and right ends of the first mobile station, and both ends of the second mobile station extend out of the first mobile station through the outlet.
In the second embodiment, in order to facilitate the installation of the third motor, a motor mounting plate 55 is fixed to the third motor, and the motor mounting plate is fixedly connected to the inner wall of the front end of the second mobile station.
As shown in fig. 13 and 14, in the third embodiment of the present invention, the difference between the third embodiment and the second embodiment is mainly that the guide rail in the third embodiment is in an "L" shape, and is suitable for the case where the liquid nitrogen container is disposed along the corner, and at this time, the liquid nitrogen containers are disposed on both sides of the corner. The first driving mechanism for driving the first moving platform to move along the guide rail comprises a driving chain wheel 21 and a driven chain wheel 22 which are arranged in the guide rail, a chain arranged between the driving chain wheel and the driven chain wheel and two guide chain wheels 29 arranged at the included angle of the guide rail, wherein the chain is in a double-layer L shape under the action of the two guide chain wheels, the first moving platform is fixedly connected with the outer-layer chain, and thus the first moving platform moves along the guide rail under the action of the first driving mechanism, and the moving track is in an L shape.
The liquid nitrogen tank lifting hook is simple in structure and convenient to operate, when the liquid nitrogen tank lifting hook is used, the hook can be moved to the position above the liquid nitrogen tank to be extracted only by remotely controlling the working state of the first motor, the second motor or the third motor through the remote controller, and then the sample rack can be extracted after the hook is hooked on the sample rack.
Claims (10)
1. Suspension type manipulator hoisting accessory, characterized by, it includes:
the mounting rack is fixed on the upper part of the wall;
the guide rail is fixed on the mounting frame and arranged along the placement direction of the liquid nitrogen tank;
the first moving platform is arranged on the guide rail in a sliding mode, a first driving mechanism for driving the first moving platform to move along the transverse direction is arranged between the guide rail and the first moving platform, and the transverse direction is the placing direction of the liquid nitrogen tank;
the second moving table is arranged on the first moving table in a sliding mode, and a second driving mechanism for driving the second moving table to move along the longitudinal direction is arranged between the first moving table and the second moving table;
the hook is movably arranged on the second mobile station, and a retraction mechanism for driving the hook to move vertically is arranged on the second mobile station;
and the remote controller is in wireless communication with the first driving mechanism, the second driving mechanism and the retraction mechanism.
2. A suspended robot lifting device as claimed in claim 1 wherein the mounting means comprises a plurality of equally spaced brackets fixed to the wall.
3. The pendant type manipulator lifting apparatus according to claim 1, wherein the guide rail is a linear guide rail, the first driving mechanism comprises a driving sprocket and a driven sprocket rotatably installed in the guide rail, a chain disposed between the driving sprocket and the driven sprocket, and a first motor driving the driving sprocket, and a synchronizing block fixedly connected to the chain is provided at a bottom of the first moving stage.
4. The pendant of claim 1, wherein a portion of the second motion stage is disposed inside the first motion stage.
5. A suspension type mechanical arm hoisting device as claimed in claim 4, wherein the second driving mechanism comprises a lead screw rotatably mounted inside the first moving platform, a driven gear fixed on the lead screw, a second motor fixed on the inner wall of the first moving platform, a driving gear fixed on the output end of the second motor and engaged with the driven gear, and a lead screw nut fixed inside the second moving platform, the lead screw nut being engaged with the lead screw.
6. The suspended manipulator hoisting device of claim 5, wherein the retraction mechanism comprises a third motor fixed in the second mobile station, a wire wheel fixed at the output end of the third motor, and a pull wire wound on the wire wheel, and the lower end of the pull wire is fixedly connected with the hook.
7. A suspended manipulator hoist as claimed in claim 1, wherein a holding bar is provided between the hook and the pull wire.
8. The pendant type manipulator lifting apparatus according to claim 1, wherein the guide rail is disposed below the mounting frame, and a fixing plate is fixed to a top of the guide rail, and the guide rail is fixedly connected to the mounting frame through the fixing plate.
9. The suspension type mechanical arm hoisting device of claim 8, wherein the guide rail is an "L" shaped guide rail, the included angle of the guide rail is arranged at a corner of a wall, the first driving mechanism comprises a driving chain wheel and a driven chain wheel which are arranged in the guide rail, a chain which is arranged between the driving chain wheel and the driven chain wheel, and two guide chain wheels which are arranged at the corner of the guide rail, the chain is in a double-layer "L" shape under the action of the two guide chain wheels, and the first moving platform is fixedly connected with the outer layer of the chain.
10. The suspension type manipulator hoisting device of claim 1, wherein a laser pen is fixed at the bottom of the first mobile station, the laser pen is in a normally-on state, the laser pen emits light in a vertical direction, and the distance between the light and the pull wire is 1-3 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094159.6A CN112265917A (en) | 2020-10-14 | 2020-10-14 | Suspension type manipulator hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094159.6A CN112265917A (en) | 2020-10-14 | 2020-10-14 | Suspension type manipulator hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112265917A true CN112265917A (en) | 2021-01-26 |
Family
ID=74338469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011094159.6A Pending CN112265917A (en) | 2020-10-14 | 2020-10-14 | Suspension type manipulator hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112265917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719139A (en) * | 2022-04-11 | 2022-07-08 | 李霞 | River course velocity of flow monitoring devices convenient to withdraw |
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| CN207418156U (en) * | 2017-11-15 | 2018-05-29 | 大同新成新材料股份有限公司 | Cantilever crane with auxiliary side wheel |
| CN207759916U (en) * | 2017-12-27 | 2018-08-24 | 鞍钢股份有限公司 | A kind of tool of quick-replaceable hot-rolling flying shears cutting edge |
| CN209872152U (en) * | 2019-05-09 | 2019-12-31 | 洛阳西艾弗智能装备有限公司 | Multifunctional crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006010220A1 (en) * | 2004-07-30 | 2006-02-02 | Bliss Harvesters Pty Ltd | Produce handling apparatus |
| WO2012135662A2 (en) * | 2011-04-01 | 2012-10-04 | Foster Wheeler Usa Corporation | Method and system for lifting and manipulating a load |
| CN103433914A (en) * | 2013-07-19 | 2013-12-11 | 山东科技大学 | Loading device for container type cargo |
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| CN106185640A (en) * | 2016-08-24 | 2016-12-07 | 高佳太阳能股份有限公司 | A kind of row hangs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719139A (en) * | 2022-04-11 | 2022-07-08 | 李霞 | River course velocity of flow monitoring devices convenient to withdraw |
| CN114719139B (en) * | 2022-04-11 | 2023-09-12 | 四川省水利科学研究院 | River channel flow velocity monitoring device convenient to withdraw |
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Application publication date: 20210126 |