CN113401639B - Basketball stacking machine for detecting roundness of basketball - Google Patents
Basketball stacking machine for detecting roundness of basketball Download PDFInfo
- Publication number
- CN113401639B CN113401639B CN202110684393.2A CN202110684393A CN113401639B CN 113401639 B CN113401639 B CN 113401639B CN 202110684393 A CN202110684393 A CN 202110684393A CN 113401639 B CN113401639 B CN 113401639B
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- Prior art keywords
- basketball
- plate
- roundness
- support plate
- supporting plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G57/00—Stacking of articles
- B65G57/02—Stacking of articles by adding to the top of the stack
- B65G57/03—Stacking of articles by adding to the top of the stack from above
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
Abstract
The application relates to a basketball stacking machine for detecting the roundness of basketball, which comprises a bracket, a first supporting plate, a second supporting plate, a ball feeding device, two roundness measuring plates which are arranged in parallel relatively and a basketball stacking box. The two roundness measuring plates are oppositely arranged in parallel and are respectively arranged at two sides of the first supporting plate and the second supporting plate. The two opposite surfaces of the two roundness measuring plates are provided with a plurality of pressure sensors. If the standard pressure sensor of each roundness measuring plate receives a pressure signal at first, that is, the orthographic projection of the center of the basketball on the roundness measuring plate falls on the standard pressure sensor. Indicating that the deformation degree of the basketball can be within the acceptable range. The roundness of the basketball is judged to be qualified, and the first supporting plate and the second supporting plate can be driven to rotate anticlockwise continuously, so that the basketball falls off to the basketball stacking box. At this time, a new basketball to be tested can be placed in the ball feeding device, so that the efficiency of the whole detection process is greatly improved.
Description
Technical Field
The application relates to the field of sports apparatuses, in particular to a basketball stacking machine for detecting the roundness of basketball.
Background
Basketball is popular with people. The roundness of the basketball is an important standard for the quality of the basketball. The existing basketball stacking machine only has the function of storing basketball, but the roundness measurement of the basketball also needs other equipment to assist, and the working efficiency is seriously affected.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a basketball stacker for detecting roundness of basketball.
A basketball stacking machine for detecting roundness of a basketball, comprising:
a bracket;
the first support plate and the second support plate are mutually perpendicular and fixedly arranged in the vertical direction, the first support plate and the second support plate are mutually intersected and divided to form four sphere containing spaces, the fixed points of the first support plate and the second support plate are positioned in the middle of the first support plate and the second support plate, and the first support plate and the second support plate are rotatably arranged in the bracket through the fixed points;
the ball feeding device is used for pushing basketball to one ball accommodating space;
the two roundness measuring plates are arranged on two sides of the first supporting plate and the second supporting plate in a parallel mode, a plurality of pressure sensors are arranged on two opposite surfaces of the two roundness measuring plates, a standard pressure sensor is further arranged on the surface of each roundness measuring plate, and for each roundness measuring plate, the plurality of pressure sensors are arranged around the standard pressure sensor;
the basketball stacking box is arranged on one side of the rotation direction of the first supporting plate and the second supporting plate;
when the included angle between the first supporting plate and the second supporting plate and the horizontal plane is 45 degrees, the position of the standard pressure sensor coincides with the projection of the center of a standard roundness basketball in the sphere accommodating space with the highest height on the first supporting plate and the second supporting plate;
the two roundness measuring plates are used for respectively approaching and pressing two sides of the basketball in the uppermost sphere containing space when the included angle between the first supporting plate and the horizontal plane is 45 degrees;
if the standard pressure sensor of each roundness measuring plate receives a pressure signal at first, judging that the roundness of the basketball is qualified;
the first support plate and the second support plate are driven to rotate, so that the basketball falls off to the basketball stacking box.
In one embodiment, the basketball stacking box opening is provided with a sliding rail, a ball pressing plate is arranged on the sliding rail in a sliding manner, a rotating plate is arranged at the bottom of the sliding rail, the rotating plate rotates to a horizontal position when the ball pressing plate is pressed down, and basketball falls into the basketball stacking box when the rotating plate rotates to the vertical direction.
In one embodiment, the ball press plate is provided with an air release needle on a side of the basketball stacking box.
In one embodiment, when the roundness of the basketball is judged to be qualified, the position of the basketball is controlled, the ball pressing plate is pressed down to enable the air discharging needle to be inserted into the air hole of the basketball, meanwhile, the ball pressing plate is continuously pressed down to enable the basketball to be discharged, and after the basketball is discharged, the rotating plate is controlled to rotate to enable the basketball to fall into the basketball stacking box.
In one embodiment, the ball feeding device includes:
a basketball placement table;
the horizontal push plate is arranged on the surface of the basketball placement table and is used for pushing basketball to one ball accommodating space, and the height of the horizontal push plate is higher than that of the first support plate and the second support plate at any position.
In one embodiment, if the pressure sensor of each roundness measuring plate receives a pressure signal first than the standard pressure sensor, the basketball roundness is judged to be unqualified.
The embodiment of the application provides a basketball stacking machine for detecting the roundness of basketball, which comprises a bracket, a first supporting plate, a second supporting plate, a ball feeding device, two roundness measuring plates and a basketball stacking box, wherein the two roundness measuring plates are arranged in parallel relatively. The two roundness measuring plates are oppositely arranged in parallel and are respectively arranged at two sides of the first supporting plate and the second supporting plate. And a plurality of pressure sensors are arranged on two opposite surfaces of the two roundness measuring plates. The plurality of pressure sensors may be uniformly arranged in the roundness measuring plate. A standard pressure sensor is also arranged on the surface of each roundness measuring plate. The basketball stacking box is arranged on one side of the rotation direction of the first supporting plate and the second supporting plate. The basketball stacking box is used for stacking basketball subjected to roundness testing.
If the standard pressure sensor of each roundness measuring plate receives a pressure signal at first, that is to say, the orthographic projection of the sphere center of the basketball on the roundness measuring plate falls on the standard pressure sensor. Indicating that the deformation degree of the basketball can be within the acceptable range. And judging that the roundness of the basketball is qualified, and continuously driving the first supporting plate and the second supporting plate to rotate anticlockwise at the moment so that the basketball falls off to the basketball stacking box. At the moment, a new basketball to be tested can be placed in the ball feeding device, and the basketball can be fed into the closest ball accommodating space for continuous circular detection. The efficiency of the whole detection process is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side view of a basketball stacking machine for detecting roundness of basketball in accordance with an embodiment of the present application;
FIG. 2 is a cross-sectional view of the basketball stacker of FIG. 1 for detecting roundness of basketball in accordance with an embodiment of the present application;
fig. 3 is a schematic view of a roundness measuring plate in a basketball stacking machine for detecting roundness of basketball according to an embodiment of the present application.
Reference numerals illustrate:
basketball stacking machine 10
Bracket 100
First support plate 210
The second support plate 220
Sphere containing space 201
Ball feeder 300
Basketball stand 310
Horizontal push plate 320
Roundness measuring plate 400
Pressure sensor 410
Standard pressure sensor 420
Basketball stacking box 500
Slide rail 510
Ball pressing plate 520
Air release needle 522
Rotating plate 530
Skateboard 540
Basketball 600.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 and 2, an embodiment of the present application provides a basketball stacking machine 10 for detecting roundness of basketball. The basketball stacking machine 10 includes a support 100, a first support plate 210, a second support plate 220, a ball feeder 300, two roundness measuring plates 400 arranged in parallel relative to each other, and a basketball stacking box 500. The first support plate 210 and the second support plate 220 are fixedly disposed to cross each other vertically. The first support plate 210 and the second support plate 220 Cheng Shizi are crossed. The crisscross structure is arranged on a vertical plane. The first support plate 210 and the second support plate 220 divide a space into four parts. Each of which constitutes a sphere receiving space 201. The corresponding central angle of each containing space is 90 degrees. The first support plate 210 and the second support plate 220 rotate around the fixed point. The ball feeding device 300 is used for pushing basketball to one ball accommodating space 201. When the roundness of the basketball needs to be tested, the basketball may be placed in the ball feeding device 300, and the ball feeding device 300 feeds the basketball into one of the ball receiving spaces 201 and then controls the cross structure to rotate.
Referring to fig. 2-3, two roundness measuring plates 400 are disposed in parallel and opposite to each other, and are disposed on both sides of the first support plate 210 and the second support plate 220, respectively. The two opposite surfaces of the two roundness measuring plates 400 are each provided with a plurality of pressure sensors 410. The plurality of pressure sensors 410 may be uniformly arranged within the roundness measuring plate 400.
A standard pressure sensor 420 is also provided on the surface of each roundness measuring plate 400. The basketball goal stack 500 is positioned on one side of the rotational direction of the first support plate 210 and the second support plate 220. The basketball stacking box 500 is used for stacking basketball that has been subjected to roundness testing. For each of the roundness measuring plates 400, the plurality of pressure sensors 410 are disposed around the standard pressure sensor 420.
When the included angle between the first support plate 210 and the second support plate 220 and the horizontal plane is 45 degrees, the position of the standard pressure sensor 420 coincides with the projection of the center of the basketball with the standard roundness on the first support plate 210 and the second support plate 220. The basketball of the standard roundness is positioned in the sphere receiving space 201 of the highest height at this time.
That is, when the ball receiving space 201 sandwiching the standard basketball reaches the highest, the projection of the center of the standard basketball on the first support plate 210 and the second support plate 220 falls on the standard pressure sensor 420. The diameter of the standard pressure sensor 420 can be one thirty to one twentieth of the diameter of a basketball, so that the measurement accuracy can be prevented from being influenced by the overlarge measurement range of the area of the standard pressure sensor 420. And meanwhile, too severe test requirements caused by too small area of the standard pressure sensor 420 can be avoided.
It will be appreciated that when two roundness measuring plates 400, which are parallel to each other, are close to each other to clamp a basketball, if the roundness of the basketball is within a predetermined range, the positions of the basketball where the two roundness measuring plates 400 first contact must pass through both ends of the horizontal diameter of the center of the basketball, so if the roundness of the basketball is within the predetermined range, it is necessary that the projection of the center of the basketball on the roundness measuring plates 400 first contact the roundness measuring plates 400.
The two roundness measuring plates 400 are used to respectively approach and press two sides of the basketball in the uppermost ball receiving space 201 when the first and second support plates 210 and 220 are inclined at 45 ° to the horizontal plane.
If the standard pressure sensor 420 of each roundness measuring plate 400 receives a pressure signal first, that is, the orthographic projection of the center of the basketball on the roundness measuring plate 400 falls on the standard pressure sensor 420. Indicating that the deformation degree of the basketball can be within the acceptable range. Judging that the roundness of the basketball is qualified;
at this point, the first support plate 210 and the second support plate 220 may continue to be driven in a counter-clockwise direction to allow the basketball to fall off the basketball goal into the basketball stacking box 500. At this time, a new basketball to be tested may be placed in the ball feeding device 300, and the basketball is fed to the closest ball receiving space 201 for continuous circular detection. The efficiency of the whole detection process is greatly improved.
In one embodiment, if the pressure sensor 410 of each roundness measuring plate 400 receives a pressure signal earlier than the standard pressure sensor 420, which indicates that the basketball is not passing the center of the circle due to deformation, the roundness of the basketball is judged to be unqualified. At this time, the basketball with unqualified roundness can be taken out manually or through other existing mechanical structures.
It will be appreciated that the above process may be performed manually, or the device may be controlled by a control module such as a PLC.
In one embodiment, the basketball goal stacking box 500 is provided with a sliding track 510 at the opening. The sliding rail 510 is vertically arranged. The sliding rail 510 is slidably provided with a ball pressing plate 520. The bottom of the sliding rail 510 is provided with a rotating plate 530. The rotating plate 530 rotates to a horizontal position when the ball pressing plate 520 is pressed down. The pivoting plate 530, when rotated in a vertical direction, causes a basketball to fall into the basketball goal box 500. The rotating plate 530 may be controlled by a motor. The rotating plate 530 may serve as a cover for the basketball goal stack 500. When the rotating plate 530 is horizontally placed, the ball pressing plate 520 and the rotating plate 530 are arranged in parallel. After the basketball test is passed, a skateboard 540 may be slid onto the rotating board 530. The rotating plate 530 is now in a horizontal position. The basketball is then deflated while the ball press plate 520 is depressed to facilitate venting of the ball. After the basketball is collapsed, the pivotal board 530 may be controlled to pivot so that the basketball falls into the basketball stacking box 500.
In one embodiment, the ball press plate 520 is provided with a vent pin 522 on a side of the basketball goal stack 500.
When the roundness of the basketball is judged to be qualified, the basketball is controlled to be positioned, the ball pressing plate 520 is pressed down to enable the air discharging needle 522 to be inserted into the air hole of the basketball, meanwhile, the ball pressing plate 520 is continuously pressed down to enable the basketball to be discharged, and after the basketball is discharged, the rotating plate 530 is controlled to rotate to enable the basketball to fall into the basketball stacking box 500. That is, after a basketball that has passed the test falls onto the rotating plate 530, the basketball's eyes may be controlled to align with the deflation needle 522. The process may be controlled manually or automatically using image processing techniques. The ball pressing plate 520 is then controlled to press down so that the basketball is collapsed while being deflated.
In one embodiment, the ball feeder 300 includes a basketball stand 310 and a horizontal blade 320. The horizontal pushing plate 320 is disposed on the surface of the basketball stand 310, and the horizontal pushing plate 320 can move left and right. When the basketball is placed on the basketball stand 310, the horizontal pushing plate 320 pushes the basketball to the ball receiving space 201 nearest to the basketball. And the basketball may be maintained at a position nearest to the ball receiving space 201 to prevent the basketball from falling off the ball receiving space 201, the height of the horizontal pushing plate 320 is higher than the heights of the first and second supporting plates 210 and 220 at any position. Therefore, the horizontal pushing plate 320 can limit the basketball to the ball receiving space 201 before the basketball reaches the highest position of the crisscross structure, so as to prevent the basketball from falling out of the ball receiving space 201.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (6)
1. A basketball stacking machine for detecting roundness of a basketball, comprising:
a bracket;
the first support plate and the second support plate are mutually perpendicular and fixedly arranged in the vertical direction, the first support plate and the second support plate are mutually intersected and divided to form four sphere containing spaces, the fixed points of the first support plate and the second support plate are positioned in the middle of the first support plate and the second support plate, and the first support plate and the second support plate are rotatably arranged in the bracket through the fixed points;
the ball feeding device is used for pushing basketball to one ball accommodating space;
the two roundness measuring plates are arranged on two sides of the first supporting plate and the second supporting plate in a parallel mode, a plurality of pressure sensors are arranged on two opposite surfaces of the two roundness measuring plates, a standard pressure sensor is further arranged on the surface of each roundness measuring plate, and for each roundness measuring plate, the plurality of pressure sensors are arranged around the standard pressure sensor;
the basketball stacking box is arranged on one side of the rotation direction of the first supporting plate and the second supporting plate;
when the included angle between the first supporting plate and the second supporting plate and the horizontal plane is 45 degrees, the position of the standard pressure sensor coincides with the projection of the center of a standard roundness basketball in the sphere accommodating space with the highest height on the first supporting plate and the second supporting plate;
the two roundness measuring plates are used for respectively approaching and pressing two sides of the basketball in the uppermost sphere containing space when the included angle between the first supporting plate and the horizontal plane is 45 degrees;
if the standard pressure sensor of each roundness measuring plate receives a pressure signal at first, judging that the roundness of the basketball is qualified;
the first support plate and the second support plate are driven to rotate, so that the basketball falls off to the basketball stacking box.
2. The basketball stacking machine for detecting roundness of basketball of claim 1,
the basketball stacking box comprises a basketball stacking box body, wherein a basketball stacking box opening is formed in the basketball stacking box body, a ball pressing plate is arranged on the sliding rail in a sliding mode, a rotating plate is arranged at the bottom of the sliding rail, the rotating plate rotates to a horizontal position when the ball pressing plate is pressed down, and basketball falls into the basketball stacking box body when the rotating plate rotates to the vertical direction.
3. The basketball stacking machine for detecting roundness of basketball of claim 2 wherein a venting needle is provided on a side of the platen adjacent to the basketball stacking box.
4. A basketball stacking machine for detecting roundness of basketball according to claim 3, wherein when said basketball is judged to be qualified, the position of said basketball is controlled, said ball pressing plate is pressed down to insert said air release needle into the air hole of said basketball, and said ball pressing plate is continuously pressed down to release said basketball, and when said basketball is released, said rotating plate is controlled to rotate to make said basketball fall into said basketball stacking box.
5. The basketball stacking machine for detecting roundness of basketball of claim 1, wherein the ball feeding device includes:
a basketball placement table;
the horizontal push plate is arranged on the surface of the basketball placement table and is used for pushing basketball to one ball accommodating space, and the height of the horizontal push plate is higher than that of the first support plate and the second support plate at any position.
6. The basketball stacker for detecting the roundness of basketball of claim 1, wherein if said pressure sensor of each of said roundness measuring plates receives a pressure signal first than said standard pressure sensor, it is judged that the roundness of basketball is not acceptable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684393.2A CN113401639B (en) | 2021-06-21 | 2021-06-21 | Basketball stacking machine for detecting roundness of basketball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684393.2A CN113401639B (en) | 2021-06-21 | 2021-06-21 | Basketball stacking machine for detecting roundness of basketball |
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| Publication Number | Publication Date |
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| CN113401639A CN113401639A (en) | 2021-09-17 |
| CN113401639B true CN113401639B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110684393.2A Active CN113401639B (en) | 2021-06-21 | 2021-06-21 | Basketball stacking machine for detecting roundness of basketball |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116147464B (en) * | 2023-04-14 | 2023-07-04 | 青岛迈朗格智能制造有限公司 | Quality detection equipment for automobile part production and delivery |
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| JP2004271353A (en) * | 2003-03-10 | 2004-09-30 | Mitsubishi Materials Techno Corp | Ball sphericity inspection device |
| JP2007168919A (en) * | 2005-12-19 | 2007-07-05 | Mutsuki:Kk | Rotary valve |
| CN102725213A (en) * | 2009-04-10 | 2012-10-10 | 凯斯皮克系统有限责任公司 | Storage and retrieval system |
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| CN212806975U (en) * | 2020-08-21 | 2021-03-26 | 河源职业技术学院 | Basketball detection device |
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| CN113401639A (en) | 2021-09-17 |
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