CN214249053U - Unmanned aerial vehicle machine carries photoelectricity nacelle operating system - Google Patents
Unmanned aerial vehicle machine carries photoelectricity nacelle operating system Download PDFInfo
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- CN214249053U CN214249053U CN202022767470.4U CN202022767470U CN214249053U CN 214249053 U CN214249053 U CN 214249053U CN 202022767470 U CN202022767470 U CN 202022767470U CN 214249053 U CN214249053 U CN 214249053U
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- 230000005622 photoelectricity Effects 0.000 title claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000013016 damping Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims 9
- 230000003028 elevating effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000003245 working effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to an unmanned aerial vehicle machine carries photoelectricity nacelle operating system to solve current unmanned aerial vehicle machine and carry photoelectric platform damping elevating gear and rely on the belt drive to carry out work, the phenomenon that the belt skidded probably appears leads to the working property unstability, and can't guarantee the reliability problem of nacelle at the lift in-process. The lifting system comprises a support frame, two lead screws, two optical axes, four driven chain wheels, a driving chain wheel, a motor, an upper limit switch, a lower limit switch, a control unit and a photoelectric pod mounting plate. The photoelectric pod mounting plate is provided with two nuts and two guide rings, the two lead screws respectively penetrate through the two nuts, the two optical axes respectively penetrate through the two guide rings, the upper ends of the two lead screws and the two optical axes respectively penetrate through the upper supporting plate, the end parts of the two lead screws and the two optical axes are respectively sleeved with a driven chain wheel, and the lower end of the driven chain wheel is rotatably connected with the lower supporting plate. The motor drives the driving chain wheel to drive the four driven chain wheels to rotate, and the upper limit switch and the lower limit switch are used for limiting the upper limit position and the lower limit position of the photoelectric pod mounting plate.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle machine carries photoelectricity nacelle operating system.
Background
At present, unmanned aerial vehicle mostly needs to carry out the task through the photoelectricity nacelle load when using, plays the effect of connecting the tie through elevating system between photoelectricity nacelle and the unmanned aerial vehicle body. When a monitoring and reconnaissance task needs to be executed, the photoelectric pod extends out of the belly of the aircraft through the lifting mechanism, so that the photoelectric pod has a wide visual field when in work; after the task is executed, the photoelectric pod is retracted into the cabin through the lifting mechanism, so that the air resistance is reduced, and the unmanned aerial vehicle can be protected from being damaged when landing. A vibration damping device can be arranged at the bottom of the lifting mechanism to ensure that the photoelectric pod is not influenced by airflow disturbance when the photoelectric pod performs tasks.
Chinese patent CN208344546U discloses a vibration-damping lifting device for an airborne photoelectric platform of an unmanned aerial vehicle, which is a photoelectric platform lifting mechanism that works by belt transmission, but due to the objective defect of belt transmission, the lifting mechanism can cause the phenomenon of belt slipping, which leads to the instantaneous increase of working current and unstable working performance; and elevating system leans on four screws to carry out the straight line feed motion, if the belt pulley on four angles rotates slightly different step, then can make four screw motion rate inconsistent rather than being connected to lead to the system to take place the excess restraint, can't adjust the small clearance of height on four angles, can't guarantee the reliability of nacelle in promotion or decline process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the unmanned aerial vehicle machine that exists and carrying out work by relying on the belt drive to carry out the damping elevating gear, the phenomenon that the belt skidded can appear, leads to the working property unstability, and a plurality of belt pulleys rotate and probably have the asynchronous condition, can't guarantee the nacelle in the reliability problem of promotion or decline in-process, and provide an unmanned aerial vehicle machine carries photoelectricity nacelle operating system.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides an unmanned aerial vehicle machine carries photoelectricity nacelle operating system, includes the support frame, the support frame includes backup pad and bottom suspension fagging, go up and connect through the pillar between backup pad and the bottom suspension fagging, its special character lies in:
the device also comprises two lead screws, two optical axes, four driven chain wheels, a driving chain wheel, a motor, an upper limit switch, a lower limit switch, a control unit and a photoelectric pod mounting plate;
two nuts and two guide rings are arranged on the photoelectric pod mounting plate;
the two lead screws respectively penetrate through the two nuts on the photoelectric pod mounting plate and form a lead screw nut mechanism together with the nuts; the two optical axes respectively penetrate through the two guide rings on the photoelectric pod mounting plate and are in transition fit with the guide rings;
the upper ends of the two screw rods and the two optical axes respectively penetrate through the upper supporting plate and are rotatably connected with the upper supporting plate, driven chain wheels are sleeved at the end parts of the two screw rods and the two optical axes, and the lower ends of the two screw rods and the lower optical axes are rotatably connected with the lower supporting plate;
the motor is arranged on the support frame, and an output shaft of the motor is connected with the driving chain wheel;
the driving chain wheel transmits power to the four driven chain wheels through chains;
the upper limit switch is arranged on the upper support plate and used for limiting the upper limit position of the photoelectric pod mounting plate;
the lower limit switch is arranged on the lower support plate and used for limiting the lower limit position of the photoelectric pod mounting plate;
the control unit is arranged on the support frame and used for receiving signals of the upper limit switch and the lower limit switch and controlling the motor to work.
Furthermore, the upper limit switch and the lower limit switch are both micro-switches;
the upper limit switch is arranged on the bottom surface of the upper supporting plate through a switch bracket;
the lower limit switch is arranged on the top surface of the lower supporting plate through a switch bracket;
an upper limiting sheet and a lower limiting sheet are respectively arranged above and below the photoelectric pod mounting plate;
the upper limiting sheet corresponds to the elastic sheet of the upper limiting switch;
the lower limiting sheet corresponds to the elastic sheet of the lower limiting switch.
Furthermore, the two lead screws and the two optical axes are arranged diagonally respectively;
the lead screw and the optical axis are respectively connected with the upper supporting plate and the lower supporting plate through flange bearings.
Furthermore, a stop gasket is arranged at the joint of the screw rod and the optical axis and the flange bearing and used for preventing the screw rod and the optical axis from moving up and down.
Further, the bottom of the support frame is provided with a damping pad.
Furthermore, a tensioning chain wheel is arranged on the upper supporting plate and used for adjusting the tensity of the chain.
Furthermore, both ends are respectively through pillar base and last backup pad and bottom suspension fagging fixed connection about the pillar.
Furthermore, go up backup pad and bottom suspension fagging and be carbon fiber material.
Furthermore, the pillar is made of aluminum alloy and has a hollow structure.
Furthermore, flange plates are arranged on the nut and the guide ring, and the nut and the guide ring are fixedly connected with the photoelectric pod mounting plate through the flange plates.
The utility model discloses compare prior art's beneficial effect is:
the utility model provides an unmanned aerial vehicle machine carries photoelectric pod operating system adopts the mode of chain-lead screw transmission combination to realize the elevating movement of photoelectric pod mounting panel to drive the photoelectric pod and stretch out the abdomen or withdraw cabin inside, wherein, chain drive has overcome the objective elastic slipping phenomenon that exists of belt drive, and transmission efficiency is higher, and reliable and stable, and the chain need not be like the belt yet to stretch very tightly simultaneously, makes the radial pressure that acts on the sprocket shaft less, has lengthened life; the screw and optical axis combined feeding motion can overcome the over-constraint phenomenon when four screws are operated simultaneously, and ensure the stable operation of the system; the system is simple and compact in structure, can realize the lifting of the photoelectric pod only through two-stage transmission, can be suitable for unmanned aerial vehicle bodies and photoelectric pods of different specifications, and has good universality.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the unmanned aerial vehicle airborne photoelectric pod lifting system of the present invention;
fig. 2 is a top cross-sectional view of fig. 1.
In the figure, 1-upper supporting plate, 2-lower supporting plate, 3-strut, 4-lead screw, 5-optical axis, 6-driven sprocket, 7-driving sprocket, 8-tensioning sprocket, 9-chain, 10-motor, 11-upper limit switch, 12-lower limit switch, 13-control unit, 14-photoelectric pod mounting plate, 15-nut, 16-guide ring, 17-switch bracket, 18-upper limit sheet, 19-lower limit sheet, 20-flange bearing, 21-stop gasket, 22-vibration damping pad, 23-strut base.
Detailed Description
To make the objects, advantages and features of the present invention clearer, the present invention provides an onboard electro-optic pod lifting system for an unmanned aerial vehicle, which is described in further detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the unmanned aerial vehicle airborne photoelectric pod lifting system comprises a support frame, two lead screws 4, two optical axes 5, four driven sprockets 6, a driving sprocket 7, a tension sprocket 8, a motor 10, an upper limit switch 11, a lower limit switch 12, a control unit 13 and a photoelectric pod mounting plate 14.
The support frame includes backup pad 1 and bottom suspension fagging 2, goes up and connects through 4 pillars 3 between backup pad 1 and the bottom suspension fagging 2, and 4 pillars 3 are the quadrangle and arrange. Go up backup pad 1 and bottom suspension fagging 2 and be carbon fiber material, can lighten weight when guaranteeing system's intensity. The pillar 3 plays a supporting role in the whole system, is made of aluminum alloy materials and is of a hollow structure, and the upper end and the lower end of the pillar are fixedly connected with the upper supporting plate 1 and the lower supporting plate 2 through the pillar base 23 respectively. The damping pad 22 is arranged at the bottom of the support frame, and a damping mechanism does not need to be arranged on the photoelectric pod mounting plate 14 independently.
Two nuts 15 and two guide rings 16 are arranged on the photoelectric pod mounting plate 14, flange plates are arranged on the nuts 15 and the guide rings 16, and the nuts 15 and the guide rings 16 are fixedly connected with the photoelectric pod mounting plate 14 through the flange plates. In practical applications, the guide ring 16 may be replaced by a nut 15. The nut 15 and the guide ring 16 are made of copper and have self-lubricating characteristics.
The two screw rods 4 and the two optical axes 5 are parallel to each other and arranged diagonally in pairs. The two lead screws 4 respectively penetrate through the two nuts 15 on the photoelectric pod mounting plate 14, and are in threaded connection with the nuts 15 to form a lead screw nut mechanism for realizing the lifting motion of the photoelectric pod mounting plate 14. The two optical axes 5 respectively penetrate through the two guide rings 16 on the photoelectric pod mounting plate 14 and are in transition fit with the guide rings 16, so that the lifting stability of the photoelectric pod mounting plate 14 is ensured.
Two lead screws 4 and two optical axis 5 upper ends pass respectively and go up backup pad 1 to with last backup pad 1 swivelling joint, and the tip all overlaps and is equipped with driven sprocket 6, its lower extreme and lower bolster 2 swivelling joint. Specifically, the lead screw 4 and the optical axis 5 are respectively connected with the upper support plate 1 and the lower support plate 2 through the flange bearing 20, and a stop gasket 21 is arranged at the joint of the lead screw 4 and the optical axis 5 and the flange bearing 20, so as to prevent the lead screw 4 and the optical axis 5 from moving up and down and prevent the lead screw 4 and the optical axis 5 from directly rubbing against the flange bearing 20.
The motor 10 is a direct current servo motor, the motor 10 is arranged on the support frame, a driving chain wheel 7 is sleeved on an output shaft of the motor 10, and the driving chain wheel 7 transmits power to the four driven chain wheels 6 through a chain 9. Go up and still be provided with tensioning sprocket 8 on the backup pad 1, tensioning sprocket 8 passes through the bolt and the nut is fixed in the bar hole of last backup pad 1 to can the fore-and-aft adjustment position, be used for adjusting the rate of tension of chain 9.
The upper limit switch 11 is arranged on the upper support plate 1 and used for limiting the upper limit position of the photoelectric pod mounting plate 14, and the lower limit switch 12 is arranged on the lower support plate 2 and used for limiting the lower limit position of the photoelectric pod mounting plate 14. The upper limit switch 11 and the lower limit switch 12 are implemented in a plurality of forms, such as a photoelectric sensing switch, in this embodiment, the upper limit switch 11 and the lower limit switch 12 are both microswitches, the upper limit switch 11 is installed on the bottom surface of the upper support plate 1 through a switch bracket 17, and the lower limit switch 12 is installed on the top surface of the lower support plate 2 through the switch bracket 17. An upper limiting sheet 18 and a lower limiting sheet 19 are respectively arranged above and below the photoelectric pod mounting plate 14, the upper limiting sheet 18 and the lower limiting sheet 19 move up and down along with the photoelectric pod mounting plate 14, the upper limiting sheet 18 corresponds to a spring sheet of the upper limiting switch 11, and the lower limiting sheet 19 corresponds to a spring sheet of the lower limiting switch 12.
The control unit 13 is disposed on the support frame, and is configured to receive signals from the upper limit switch 11 and the lower limit switch 12, and control the operating state of the motor 10. The control line of the control unit 13 is led out through the wiring terminal and is connected with the motor 10, the upper limit switch 11 and the lower limit switch 12, so as to control the starting, stopping and forward and reverse rotation of the motor 10.
In actual operation, when the photoelectric pod is at the bottom of the lifting system, the lower limit piece 19 presses the spring piece of the lower limit switch 12, and the motor 10 stops running. When an external instruction signal is sent to the control unit 13, the control unit 13 controls the motor 10 to start rotating, meanwhile, the driving sprocket 7 drives the four driven sprockets 6 to rotate and transmit torque to the screw rod 4 and the optical axis 5, and the screw rod 4 and the optical axis 5 rotate to enable the nut 13 to drive the photoelectric pod mounting plate 14 to perform lifting movement. Because the mechanical control system inevitably has small difference in the execution process, the operation of the screw rod 4 is slightly out of synchronization, and at the moment, the optical axis 5 can timely adjust the height difference of four corners of the photoelectric pod mounting plate 14, so that the photoelectric pod mounting plate is always kept in a horizontal position, and the stability of the system is improved. When the upper limit sheet 18 touches the elastic sheet of the upper limit switch 11, the motor 10 stops running. At the moment, the photoelectric pod extends out of the cabin, and the work can be normally performed. When the retraction is needed, the command is sent again to enable the motor 10 to rotate reversely, and the actions are repeated, so that the photoelectric pod is retracted into the cabin.
The system has a compact structure and strong universality, and can be adapted to unmanned aerial vehicles and photoelectric gondolas of various models. When the size of the lifting system needs to be changed, only the upper supporting plate 1 and the lower supporting plate 2 need to be redesigned. The support column 3 and the photoelectric pod mounting plate 14 may be used in common, and other components may be used in common.
Claims (10)
1. The utility model provides an unmanned aerial vehicle machine carries photoelectricity nacelle operating system, includes the support frame, the support frame includes backup pad (1) and bottom suspension fagging (2), go up and connect its characterized in that through pillar (3) between backup pad (1) and bottom suspension fagging (2):
the device is characterized by also comprising two lead screws (4), two optical axes (5), four driven chain wheels (6), a driving chain wheel (7), a motor (10), an upper limit switch (11), a lower limit switch (12), a control unit (13) and a photoelectric pod mounting plate (14);
two nuts (15) and two guide rings (16) are arranged on the photoelectric pod mounting plate (14);
the two lead screws (4) respectively penetrate through two nuts (15) on the photoelectric pod mounting plate (14) and form a lead screw nut mechanism together with the nuts (15); the two optical axes (5) respectively penetrate through the two guide rings (16) on the photoelectric pod mounting plate (14) and are in transition fit with the guide rings (16);
the upper ends of the two lead screws (4) and the two optical axes (5) respectively penetrate through the upper supporting plate (1) and are rotatably connected with the upper supporting plate (1), the end parts of the two lead screws are sleeved with driven chain wheels (6), and the lower ends of the two lead screws are rotatably connected with the lower supporting plate (2);
the motor (10) is arranged on the support frame, and the output shaft of the motor is connected with the driving chain wheel (7);
the driving chain wheel (7) transmits power to the four driven chain wheels (6) through a chain (9);
the upper limit switch (11) is arranged on the upper support plate (1) and is used for limiting the upper limit position of the photoelectric pod mounting plate (14);
the lower limit switch (12) is arranged on the lower support plate (2) and is used for limiting the lower limit position of the photoelectric pod mounting plate (14);
the control unit (13) is arranged on the support frame and used for receiving signals of the upper limit switch (11) and the lower limit switch (12) and controlling the motor (10) to work.
2. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 1, wherein:
the upper limit switch (11) and the lower limit switch (12) are both microswitches;
the upper limit switch (11) is arranged on the bottom surface of the upper support plate (1) through a switch bracket (17);
the lower limit switch (12) is arranged on the top surface of the lower support plate (2) through a switch bracket (17);
an upper limiting sheet (18) and a lower limiting sheet (19) are respectively arranged above and below the photoelectric pod mounting plate (14);
the upper limiting sheet (18) corresponds to the elastic sheet of the upper limiting switch (11);
the lower limiting sheet (19) corresponds to the elastic sheet of the lower limiting switch (12).
3. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 2, wherein:
the two screw rods (4) and the two optical axes (5) are arranged diagonally respectively;
the lead screw (4) and the optical axis (5) are respectively connected with the upper supporting plate (1) and the lower supporting plate (2) through flange bearings (20).
4. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 3, wherein:
and a stop gasket (21) is arranged at the joint of the screw rod (4) and the optical axis (5) and the flange bearing (20) and is used for preventing the screw rod (4) and the optical axis (5) from moving up and down.
5. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 4, wherein:
and a damping pad (22) is arranged at the bottom of the support frame.
6. The unmanned aerial vehicle airborne optoelectronic pod lifting system of any of claims 1 to 5, wherein:
and a tensioning chain wheel (8) is arranged on the upper supporting plate (1) and used for adjusting the tension of the chain (9).
7. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 6, wherein:
the upper end and the lower end of the pillar (3) are fixedly connected with the upper supporting plate (1) and the lower supporting plate (2) through a pillar base (23) respectively.
8. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 7, wherein:
and the upper supporting plate (1) and the lower supporting plate (2) are made of carbon fiber materials.
9. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 8, wherein:
the support column (3) is made of aluminum alloy and is of a hollow structure.
10. The unmanned aerial vehicle airborne optoelectronic pod lifting system of claim 9, wherein:
the nut (15) and the guide ring (16) are both provided with flanges, and the nut (15) and the guide ring (16) are fixedly connected with the photoelectric pod mounting plate (14) through the flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767470.4U CN214249053U (en) | 2020-11-25 | 2020-11-25 | Unmanned aerial vehicle machine carries photoelectricity nacelle operating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767470.4U CN214249053U (en) | 2020-11-25 | 2020-11-25 | Unmanned aerial vehicle machine carries photoelectricity nacelle operating system |
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| CN214249053U true CN214249053U (en) | 2021-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361192A (en) * | 2020-11-25 | 2021-02-12 | 陕西省天然气股份有限公司 | Unmanned aerial vehicle machine carries photoelectricity nacelle operating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361192A (en) * | 2020-11-25 | 2021-02-12 | 陕西省天然气股份有限公司 | Unmanned aerial vehicle machine carries photoelectricity nacelle operating system |
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