CN213058593U - Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof - Google Patents
Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof Download PDFInfo
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- CN213058593U CN213058593U CN202021535616.6U CN202021535616U CN213058593U CN 213058593 U CN213058593 U CN 213058593U CN 202021535616 U CN202021535616 U CN 202021535616U CN 213058593 U CN213058593 U CN 213058593U
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Abstract
The utility model relates to a granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof, winding and unwinding devices is including being used for as for the outside device support of granary, and the device support is gone up and is equipped with first support along the direction, and the direction removal is equipped with the second support that is used for radar scanning device installation on the first support, and the action direction of first support is perpendicular with the action direction of second support, and the second support is driven by second support actuating mechanism and reciprocating motion, and first support removes the in-process and has the first station of the cang kou of letting out corresponding granary and removes to making radar scanning device and the second station that the cang kou position corresponds, and the second support can make radar scanning device pass under the drive of second support actuating mechanism the cang kou. The utility model provides a can be applied to the granary that uses among three-dimensional scanning quantity monitoring facilities among the dust environment, this three-dimensional scanning quantity monitoring facilities and use this three-dimensional scanning quantity monitoring facilities.
Description
Technical Field
The utility model relates to a granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof among the technical field are stored to grain.
Background
The laser radar is a radar system which detects the position, size and other characteristics of a target by emitting a laser beam, and the working principle of the radar system is to emit a detection signal (laser beam) to the target, then compare the received signal (target echo) reflected from the target with the emission signal, and after proper processing, the relevant information of the target, such as the parameters of the target distance, the direction, the height, the shape and the like, can be obtained.
Recently, the laser radar is also applied to the grain storage field of the granary, in the grain storage field, grains are stacked in the granary, in order to accurately obtain the volume of the grains, the laser radar is required to be used for scanning the surface of the grain pile so as to obtain the size of the surface of the grain pile, and because the flying dust is large in the use environment in the granary, the traditional radar scanning device is not suitable for being used in the granary; and in the dust environment, higher requirements are put forward on the explosion prevention of the scanning device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-dimensional scanning quantity monitoring device which can be applied to the dust environment; an object of the utility model is to provide a winding and unwinding devices that uses in this three-dimensional scanning quantity monitoring facilities and use this three-dimensional scanning quantity monitoring facilities's granary still.
In order to solve the technical problem, the utility model discloses well granary's technical scheme as follows:
a granary comprises a granary body with a granary opening, and further comprises a three-dimensional scanning quantity monitoring device, wherein the three-dimensional scanning quantity monitoring device comprises a radar scanning device and a winding and unwinding device, the winding and unwinding device comprises a device support used outside the granary, a first support is assembled on the device support along a guide direction, the first support is driven by a first support driving mechanism to reciprocate, a second support used for installing the radar scanning device is assembled on the first support in a guide movement mode, the action direction of the first support is perpendicular to that of the second support, the second support is driven by a second support driving mechanism to reciprocate, a first station for leading the granary opening of the corresponding granary to be opened and a second station for moving the radar scanning device to correspond to the position of the granary opening are arranged in the moving process of the first support, and the radar scanning device can penetrate through the granary opening under the driving of the second support driving mechanism.
The first support comprises a movable bin cover used for plugging a corresponding bin opening, a scanning device passing opening matched with the radar scanning device and used for the radar scanning device to pass through along the vertical direction is formed in the movable bin cover, a movable bin door is arranged at the position of the scanning device passing opening, and the movable bin door is driven by a bin door driving mechanism to be opened and closed.
The radar scanning device comprises an upper device part and a lower device part rotatably assembled on the upper device part, wherein a lower device driving mechanism for driving the lower device part to rotate is arranged on the upper device part, and a radar is arranged on the lower device part.
The upper side device part comprises a fixed shell, the lower side device part comprises a rotary shell, the rotary shell is rotatably assembled on the fixed shell through a rotating connecting structure, the lower side device driving mechanism is arranged in the fixed shell, the laser radar is arranged in the rotary shell, and a laser beam channel for laser beams of the laser radar to pass through is arranged on the wall of the bottom shell of the rotary shell.
The rotating shell is provided with a channel protection door, and a protection door driving mechanism for driving the channel protection door to act so as to open and close the laser beam channel is arranged in the rotating shell.
The rotating shaft is assembled on the rotating shell in a rotating mode, the axis of the rotating shaft is perpendicular to the rotating shaft in the vertical direction, the two ends of the rotating shaft are installed ends which are worn out of the rotating shell, the two ends of the channel protective door are fixed on the installation ends which are worn out of the rotating shaft respectively, and the protective door driving mechanism is connected with the rotating shaft in the rotating shell in a transmission mode.
The protective door driving mechanism comprises a protective door driving motor, the protective door driving motor is provided with a protective door driving motor shaft which is arranged in parallel with the rotating shaft, a rotating shaft transmission gear is coaxially fixed on the rotating shaft, and a motor shaft gear which is in transmission connection with the rotating shaft transmission gear is coaxially fixed on the protective door driving motor shaft.
The technical scheme of the three-dimensional scanning quantity monitoring equipment is as follows:
the three-dimensional scanning quantity monitoring equipment comprises a radar scanning device and a winding and unwinding device, wherein the winding and unwinding device comprises a device support used outside a granary, a first support is assembled on the device support along a guide direction, the first support is driven by a first support driving mechanism to reciprocate, a second support used for installing the radar scanning device is assembled on the first support in a guide movement mode, the action direction of the first support is perpendicular to that of the second support, the second support is driven by a second support driving mechanism to reciprocate, a first station for leading the granary opening of the corresponding granary to be opened and a second station for leading the radar scanning device to correspond to the granary opening position are arranged in the first support moving process, and the second support can lead the radar scanning device to pass through the granary opening under the driving of the second support driving mechanism.
The first support comprises a movable bin cover used for plugging a corresponding bin opening, a scanning device passing opening matched with the radar scanning device and used for the radar scanning device to pass through along the vertical direction is formed in the movable bin cover, a movable bin door is arranged at the position of the scanning device passing opening, and the movable bin door is driven by a bin door driving mechanism to be opened and closed.
The radar scanning device comprises an upper device part and a lower device part rotatably assembled on the upper device part, wherein a lower device driving mechanism for driving the lower device part to rotate is arranged on the upper device part, and a radar is arranged on the lower device part.
The upper side device part comprises a fixed shell, the lower side device part comprises a rotary shell, the rotary shell is rotatably assembled on the fixed shell through a rotating connecting structure, the lower side device driving mechanism is arranged in the fixed shell, the laser radar is arranged in the rotary shell, and a laser beam channel for laser beams of the laser radar to pass through is arranged on the wall of the bottom shell of the rotary shell.
The rotating shell is provided with a channel protection door, and a protection door driving mechanism for driving the channel protection door to act so as to open and close the laser beam channel is arranged in the rotating shell.
The rotating shaft is assembled on the rotating shell in a rotating mode, the axis of the rotating shaft is perpendicular to the rotating shaft in the vertical direction, the two ends of the rotating shaft are installed ends which are worn out of the rotating shell, the two ends of the channel protective door are fixed on the installation ends which are worn out of the rotating shaft respectively, and the protective door driving mechanism is connected with the rotating shaft in the rotating shell in a transmission mode.
The protective door driving mechanism comprises a protective door driving motor, the protective door driving motor is provided with a protective door driving motor shaft which is arranged in parallel with the rotating shaft, a rotating shaft transmission gear is coaxially fixed on the rotating shaft, and a motor shaft gear which is in transmission connection with the rotating shaft transmission gear is coaxially fixed on the protective door driving motor shaft.
The utility model discloses well winding and unwinding devices's technical scheme does:
the retracting device of the three-dimensional scanning quantity monitoring equipment comprises a device support used outside a granary, wherein a first support is assembled on the device support along a guide direction, the first support is driven by a first support driving mechanism to reciprocate, a second support used for installing a radar scanning device is assembled on the first support in a guide movement mode, the action direction of the first support is perpendicular to that of the second support, the second support is driven by a second support driving mechanism to reciprocate, a first station for leading a granary opening of the corresponding granary to be opened and a second station for leading the radar scanning device to correspond to the granary opening position are arranged in the first support movement process, and the second support can enable the radar scanning device to penetrate through the granary opening under the driving of the second support driving mechanism.
The first support comprises a movable bin cover used for plugging a corresponding bin opening, a scanning device passing opening matched with the radar scanning device and used for the radar scanning device to pass through along the vertical direction is formed in the movable bin cover, a movable bin door is arranged at the position of the scanning device passing opening, and the movable bin door is driven by a bin door driving mechanism to be opened and closed.
The utility model has the advantages that: the utility model discloses in, first support has first station and second station under first support actuating mechanism drive, when needs the bin opening as normal bin opening use, first support removes to first station, the bin opening of stepping down this moment, people or grain can be gone into to the bin opening, use as normal bin opening function, when needs are monitored the granary, first support removes to the second station, radar scanning device corresponds with the bin opening position this moment, second support actuating mechanism drive second support vertical removal, thereby in passing the bin opening along vertical with radar scanning device and getting into the granary, realize the scanning to granary in the granary, after the scanning, the second support takes radar scanning device to shift out by the bin opening, radar scanning device is not internal in the storehouse, radar scanning device and the interior raise dust environment isolation of storehouse, thereby realize explosion-proof.
Drawings
Fig. 1 is a schematic structural view of one embodiment of the granary of the present invention;
FIG. 2 is a perspective view of FIG. 1;
fig. 3 is a schematic view of the first support in the embodiment of the granary of the present invention in a first station;
FIG. 4 is a schematic diagram of an embodiment of the radar scanning apparatus of FIG. 1;
FIG. 5 is a schematic view of the stationary housing of FIG. 4 with the cartridge removed;
FIG. 6 is a schematic view of the conductive slip ring of FIG. 4 mated with the hollow drive shaft;
FIG. 7 is a schematic view of the protective door drive mechanism of FIG. 4 engaged with a protective door;
fig. 8 is a schematic view showing a state in which the protection door of fig. 4 is opened.
Detailed Description
The granary is shown in figures 1-8: comprises a three-dimensional scanning quantity monitoring device and a bin body with a bin opening 34, wherein the bin opening is used for people to pass through or discharge grains. Three-dimensional scanning quantity monitoring facilities includes radar scanning device 34 and winding and unwinding devices, winding and unwinding devices is including being used for as for the outside device support 36 of granary, in this embodiment, the device support is for enclosing the square frame structure who locates the bin mouth outside, it is equipped with first support to lead to remove along left right direction on the device support, first support includes vertical frame 53 and the activity cang gai 38 that is used for the shutoff bin mouth that is fixed in vertical frame bottom, first support is by first support actuating mechanism drive and reciprocating motion, in this embodiment, first support actuating mechanism includes first support driving motor 45, be fixed with first support drive gear on the first support driving motor, the bottom of activity cang gai 38 is provided with the driving rack 46 with first support drive gear interlock transmission. The two long sides of the device bracket are provided with C-shaped steel guide rails 35 with notches arranged oppositely, the upper end of the movable bin cover is provided with rollers 40 matched with the C-shaped steel guide rails in a guiding and moving way, in the embodiment, the rollers are 6 to form three pairs, wherein three rollers are arranged at the front side of the vertical frame, the other three rollers are arranged at the rear side of the vertical frame, the rollers are arranged on corresponding roller shafts, the movable bin cover is provided with a bearing seat for the corresponding roller shafts to rotate and assemble, a pair of rollers at the left side and a pair of rollers at the right side share a first roller shaft 39 with longer length, two rollers at the middle position respectively use a second roller shaft 44 with shorter length, and item 42 in the figure represents the bearing seat for the corresponding roller shafts to install.
The vertical frame comprises vertically arranged upright posts, a top plate 37 fixed at the tops of the upright posts and a guide plate 50 fixed at the bottoms of the upright posts, a second support used for installing the radar scanning device is assembled on the vertical frame in a guiding movement mode, the second support is driven by a second support driving mechanism to reciprocate, the second support comprises a scanning device mounting plate 60, the second support driving mechanism comprises an electric push rod in transmission connection with the scanning device mounting plate, an item 54 in the drawing represents a guide rod connected between the electric push rod and the scanning device mounting plate 60, and the guide rod is in guiding movement fit with the guide plate 50 through a linear bearing 52.
Be provided with on the movable bin lid with the scanning device who passes through along vertical scanning device of confession radar scanning device adaptation through mouth 48, scanning device through mouth department is provided with the movable bin door, and the movable bin door is realized opening and closing by door actuating mechanism drive scanning device through the mouth, in this embodiment, door actuating mechanism comprises door electric putter, and door electric putter's one end links to each other with the movable bin lid is articulated, and door electric putter's other one end links to each other with the movable bin door is articulated, can realize the movable bin door and open and close scanning device through the mouth during the door electric putter action. Item 47 of the drawing shows a bearing housing mounting baseplate; item 41 represents a leg of the device stand; item 45 represents a reinforcing channel fixed to the upper end of the top plate 37; item 51 represents an electric cabinet; item 49 represents a hinge.
The first support is provided with a first station for opening the bin opening 34 of the corresponding granary and a second station for moving the radar scanning device to correspond to the bin opening 34 in the moving process, and the second support can enable the radar scanning device to penetrate through the bin opening under the driving of the second support driving mechanism.
The radar scanning device comprises an upper device part and a lower device part rotatably assembled on the upper device part, a lower device driving mechanism for driving the lower device part to rotate is arranged on the upper device part, and the laser radar is arranged on the lower device part. In this embodiment, the upper device part includes a fixed housing 23, the lower device part includes a rotating housing 1 rotatably assembled to the fixed housing by a rotating connection structure, the lower device driving mechanism is disposed in the fixed housing, the laser radar 11 is disposed in the rotating housing, and a laser beam passage 33 for passing a laser beam of the laser radar is disposed on a bottom housing wall of the rotating housing.
The fixed shell comprises a fixed shell bottom plate 16 which is horizontally arranged, a fixed shell cylinder body which is vertically arranged is fixed on the upper side of the fixed shell bottom plate 16, the rotary connecting structure comprises a hollow transmission shaft 15 which is rotatably assembled on the fixed shell bottom plate 16 through a bearing seat 17, the axis of the hollow transmission shaft extends along the vertical direction, and a conductive sliding ring 26 which is conductively connected with the laser radar is arranged in the hollow transmission shaft 15. The rotating shell driving mechanism comprises a vertically arranged rotating shell driving motor 31 fixed on the bottom plate of the fixed shell, a motor shaft 19 of the rotating shell driving motor is coaxially fixed with a small belt wheel 22, a hollow transmission shaft 15 is coaxially fixed with a large belt wheel 21, and the small belt wheel 22 is in transmission connection with the large belt wheel 21 through a transmission belt 27. A tilt sensor 20 is also fixed to the upper side of the bottom plate of the fixed housing.
The rotating shell 1 comprises a rotating shell bottom plate 14 arranged on the lower side of a fixed shell bottom plate, the rotating shell bottom plate and the fixed shell bottom plate are arranged in parallel, the rotating shell bottom plate further comprises a hemispherical shell 30 fixed on the lower side of the rotating shell bottom plate, and the rotating shell bottom plate 14 is fixed on the bottom of the hollow transmission shaft 15. The laser beam channel 33 is disposed on the hemispherical shell 30, and in the present embodiment, the laser radar 8 is fixed on a channel wall of one side of the laser beam channel, and the width of the laser beam channel is adapted to the width of the laser radar.
Rotate on the rotatory shell and be equipped with passageway shutter 13, be provided with the drive in the rotatory shell passageway shutter 13 rotates so that passageway shutter opens and closes laser beam passageway 33's shutter actuating mechanism, in this embodiment, rotates on the hemispherical shell and is equipped with axis of rotation 12 of axis perpendicular to upper and lower direction, and the both ends of axis of rotation 12 be by installation end 29 is worn out of rotatory shell wearing out, and the both ends of passageway shutter are fixed in respectively on wearing out the installation end of axis of rotation, and shutter actuating mechanism is connected with the rotation axis transmission in the rotatory shell. The protective door driving mechanism comprises a protective door driving motor 2, the protective door driving motor 2 is provided with a protective door driving motor shaft 6 which is arranged in parallel with the rotating shaft, a rotating shaft transmission gear 4 is coaxially fixed on the rotating shaft, and a motor shaft gear 3 which is in transmission connection with the rotating shaft transmission gear is coaxially fixed on the protective door driving motor shaft.
When the warehouse door is used, when the warehouse door is required to be used normally, the first support moves to the first station, as shown in fig. 2, the first support leaves the warehouse door open, and the warehouse door can be used normally; when the bin opening needs to be closed, the first support moves to the second station, the movable bin cover blocks the bin opening, the movable bin cover is equivalent to a bin gate structure, when a radar scanning device is needed to scan a grain stack, the movable bin gate opens a scanning device through opening, the second support moves under a second support driving mechanism, the radar scanning device enters the bin body from top to bottom through the bin opening, the laser radar rotates to complete 360-degree scanning of the grain stack, and the movable bin gate is arranged, so that when scanning is conducted, the opening is not too large, and too much flying dust cannot be discharged through the bin opening; after the scanning, radar scanning device is worn out through the mouth by door and scanning device from bottom to top, and the activity door is closed, and the activity cang gai continues shutoff door, and radar scanning device removes to the outside of the storehouse body, and radar scanning device and bin body inner chamber are kept apart to the activity cang gai, have realized explosion-proof, that is to say that the utility model discloses well activity cang gai both can undertake the normal function of door, can play radar scanning device's explosion-proof effect of isolation again, can also realize radar scanning device's scanning operation.
In other embodiments of the present invention, the first support driving mechanism can also be replaced by a driving mechanism, such as a driving cylinder, an electric push rod, etc., which can drive the first support to reciprocate in the linear direction; certainly, the first support may not reciprocate in the linear direction, for example, the first support is mounted on a rotating shaft, and the first support is switched between the first station and the second station by the rotation of the rotating shaft; the second support driving mechanism can also be replaced by other driving mechanisms such as a driving cylinder, a gear rack and the like, as long as the second support can be driven to move up and down; the movable bin cover can not be used as a normal bin gate, for example, the first support moves to a first station, a separate bin gate is arranged to seal a bin opening, and when the first support needs to move to a second station, the bin gate is opened. The channel protection door can be omitted; the channel protection door may not open and close the laser beam channel by rotation, for example, the channel protection door opens and closes the laser beam channel by translation, and the protection door driving mechanism may be an electric push rod for driving the channel protection door to translate; the hemispherical shell of the rotating shell can also be replaced by a square shell.
The embodiment of the three-dimensional scanning quantity monitoring device is shown in figures 1-8: the specific structure of the three-dimensional scanning quantity monitoring device is the same as that of the three-dimensional scanning quantity monitoring devices in the granary embodiments, and the detailed description is omitted.
The embodiment of the retraction device of the three-dimensional scanning quantity monitoring equipment is shown in figures 1-8: the specific structure of the retraction device is the same as that of the retraction device in the granary embodiments, and the detailed description is omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. Receive and release device of three-dimensional scanning quantity monitoring facilities, its characterized in that: the device comprises a device support used outside a granary, wherein a first support is assembled on the device support along a guide direction, the first support is driven by a first support driving mechanism to reciprocate, a second support used for installing a radar scanning device is assembled on the first support in a guide movement manner, the action direction of the first support is perpendicular to that of the second support, the second support is driven by a second support driving mechanism to reciprocate, a first station for opening a bin opening of the corresponding granary and a second station for moving the radar scanning device to correspond to the bin opening are arranged in the first support moving process, and the second support is driven by the second support driving mechanism to enable the radar scanning device to penetrate through the bin opening.
2. The retraction device according to claim 1, characterized in that: the first support comprises a movable bin cover used for plugging a corresponding bin opening, a scanning device passing opening matched with the radar scanning device and used for the radar scanning device to pass through along the vertical direction is formed in the movable bin cover, a movable bin door is arranged at the position of the scanning device passing opening, and the movable bin door is driven by a bin door driving mechanism to be opened and closed.
3. Three-dimensional scanning quantity monitoring facilities, including radar scanning device, its characterized in that: the granary positioning device comprises a granary and is characterized by further comprising a winding and unwinding device, the winding and unwinding device comprises a device support used outside the granary, a first support is assembled on the device support along a guide direction, the first support is driven by a first support driving mechanism to reciprocate, a second support used for installing a radar scanning device is assembled on the first support in a guide movement mode, the action direction of the first support is perpendicular to that of the second support, the second support is driven by a second support driving mechanism to reciprocate, a first station for leading the corresponding granary opening of the granary to be opened and a second station for leading the radar scanning device to correspond to the granary opening position are arranged in the first support movement process, and the second support can lead the radar scanning device to penetrate through the granary opening under the driving of the second support driving mechanism.
4. The three-dimensional scan quantity monitoring apparatus according to claim 3, wherein: the first support comprises a movable bin cover used for plugging a corresponding bin opening, a scanning device passing opening matched with the radar scanning device and used for the radar scanning device to pass through along the vertical direction is formed in the movable bin cover, a movable bin door is arranged at the position of the scanning device passing opening, and the movable bin door is driven by a bin door driving mechanism to be opened and closed.
5. The three-dimensional scan quantity monitoring apparatus according to claim 3 or 4, wherein: the radar scanning device comprises an upper device part and a lower device part rotatably assembled on the upper device part, wherein a lower device driving mechanism for driving the lower device part to rotate is arranged on the upper device part, and a radar is arranged on the lower device part.
6. The three-dimensional scan quantity monitoring apparatus according to claim 5, wherein: the upper side device part comprises a fixed shell, the lower side device part comprises a rotary shell, the rotary shell is rotatably assembled on the fixed shell through a rotating connecting structure, the lower side device driving mechanism is arranged in the fixed shell, the laser radar is arranged in the rotary shell, and a laser beam channel for laser beams of the laser radar to pass through is arranged on the wall of the bottom shell of the rotary shell.
7. The three-dimensional scan quantity monitoring apparatus of claim 6, wherein: the rotating shell is provided with a channel protection door, and a protection door driving mechanism for driving the channel protection door to act so as to open and close the laser beam channel is arranged in the rotating shell.
8. The three-dimensional scan quantity monitoring apparatus according to claim 7, wherein: the rotating shaft is assembled on the rotating shell in a rotating mode, the axis of the rotating shaft is perpendicular to the rotating shaft in the vertical direction, the two ends of the rotating shaft are installed ends which are worn out of the rotating shell, the two ends of the channel protective door are fixed on the installation ends which are worn out of the rotating shaft respectively, and the protective door driving mechanism is connected with the rotating shaft in the rotating shell in a transmission mode.
9. The three-dimensional scan quantity monitoring apparatus of claim 8, wherein: the protective door driving mechanism comprises a protective door driving motor, the protective door driving motor is provided with a protective door driving motor shaft which is arranged in parallel with the rotating shaft, a rotating shaft transmission gear is coaxially fixed on the rotating shaft, and a motor shaft gear which is in transmission connection with the rotating shaft transmission gear is coaxially fixed on the protective door driving motor shaft.
10. A grain bin comprising a bin body having a mouth, characterized in that: a three-dimensional scan quantity monitoring apparatus as claimed in any one of claims 3 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535616.6U CN213058593U (en) | 2020-07-29 | 2020-07-29 | Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535616.6U CN213058593U (en) | 2020-07-29 | 2020-07-29 | Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof |
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| CN213058593U true CN213058593U (en) | 2021-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792223A (en) * | 2020-07-29 | 2020-10-20 | 郑州工大粮安科技有限公司 | Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof |
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2020
- 2020-07-29 CN CN202021535616.6U patent/CN213058593U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792223A (en) * | 2020-07-29 | 2020-10-20 | 郑州工大粮安科技有限公司 | Granary, three-dimensional scanning quantity monitoring facilities and winding and unwinding devices thereof |
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