CN210312015U - Tray recovery device - Google Patents
Tray recovery device Download PDFInfo
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- CN210312015U CN210312015U CN201921220914.3U CN201921220914U CN210312015U CN 210312015 U CN210312015 U CN 210312015U CN 201921220914 U CN201921220914 U CN 201921220914U CN 210312015 U CN210312015 U CN 210312015U
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- tray
- slide way
- slide
- frame
- slideway
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Abstract
The utility model discloses a tray recovery device, which comprises a frame, a first slide way arranged on the frame, a second slide way arranged below the first slide way and a tray recovery mechanism positioned at the discharge end of the first slide way; the first slide way is used for conveying a loaded tray, the second slide way is used for conveying an unloaded tray, the first slide way and the second slide way are obliquely arranged, the height of the feeding end of the first slide way is greater than that of the discharging end of the first slide way, and the height of the feeding end of the second slide way is greater than that of the discharging end of the second slide way; the feeding end and the discharging end of the second slideway are respectively arranged corresponding to the discharging end and the feeding end of the first slideway; the tray recycling mechanism comprises a lifting platform and a lifting driving piece, the lifting platform is used for placing the discharged tray, a sliding rail is arranged on the rack and is in sliding fit with the lifting platform, the lifting driving piece drives the lifting platform to ascend to the discharging end of the first slide or descend to the feeding end of the second slide, and therefore automatic recycling of empty trays is achieved, and production efficiency is improved.
Description
Technical Field
The utility model relates to a material recovery technical field, concretely relates to tray recovery unit.
Background
In a production assembly line, the pallet is generally recyclable, and after the material on the carrying pallet is unloaded, a production operator needs to carry an empty pallet for the second time to prepare for loading the next material, which wastes labor hours and affects production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tray recovery unit to solve the unable automatic problem of retrieving of tray after unloading.
In order to achieve the above object, the utility model provides a tray recovery unit, tray recovery unit include the frame and set up in the frame:
the first slide way is used for conveying the loaded tray, the first slide way is obliquely arranged, and the height of the feeding end of the first slide way is greater than that of the discharging end of the first slide way;
the second slide way is used for conveying the unloaded tray, is arranged below the first slide way and is obliquely arranged, and the height of the feeding end of the second slide way is greater than that of the discharging end of the second slide way; the feeding end of the second slideway is arranged corresponding to the discharging end of the first slideway, and the discharging end of the second slideway is arranged corresponding to the feeding end of the first slideway;
mechanism is retrieved to tray, mechanism is retrieved to tray is located the discharge end department of first slide, mechanism is retrieved to tray include the elevating platform with set up in the lift driving piece of the below of elevating platform, the elevating platform is used for placing after unloading the tray, be provided with in the frame with elevating platform sliding fit's slide rail, the lift driving piece is used for the drive the elevating platform rises to the discharge end department of first slide or descend to the feed end department of second slide.
Preferably, a supporting plate is arranged below the lifting platform, a sliding block in sliding fit with the sliding rail is arranged on the supporting plate, the lifting driving piece is a lifting cylinder, one side of the supporting plate is connected with the lifting platform through a connecting block, the other side of the supporting plate is connected with a piston rod of the lifting cylinder, and the lifting cylinder is used for driving the supporting plate to ascend or descend so as to drive the lifting platform to ascend or descend.
Preferably, the number of the slide rails and the number of the slide blocks are two and are arranged in a one-to-one correspondence manner, the two slide rails respectively correspond to the two sides of the lifting platform, and the two slide blocks are respectively arranged on the two sides of the supporting plate.
Preferably, the bottom of elevating platform is provided with the balance shaft, the both ends of balance shaft are overlapped respectively and are equipped with the gear, be provided with in the frame two with gear engagement's rack, two the rack corresponds two respectively the gear sets up, the extending direction of rack with the extending direction of slide rail is the same, two the teeth of a cogwheel quantity on the rack is the same and the one-to-one is arranged.
Preferably, the first slide with the second slide all is provided with two spouts, two on the first slide the opening of spout sets up relatively, two on the second slide the opening of spout sets up relatively, be provided with on the tray a plurality of with spout sliding fit's bearing.
Preferably, the tray includes the support frame, the bearing set up in the both ends of support frame, be close to in the frame one side of elevating platform is provided with barrier mechanism, barrier mechanism is located the below of first slide, barrier mechanism includes rotation axis and rotary drive subassembly, the both ends of rotation axis respectively with the both sides of frame are connected, be provided with on the rotation axis and block the piece, the rotary drive subassembly is used for the drive the rotation axis is rotatory, so that block the piece orientation the support frame braking is loaded the tray, or make block the piece and keep away from the support frame is in order to loading the braking is removed to the tray.
Preferably, the number of the rotating shafts is two, the two rotating shafts are respectively arranged corresponding to two sides of the tray, two blocking blocks are arranged on each rotating shaft, and the two blocking blocks are respectively arranged close to two ends of each rotating shaft.
Preferably, the rotary driving assembly includes the fixed block and blocks the cylinder, the fixed block include the fixed part and with the extension that the fixed part is connected, the extension deviates from one side of fixed part extends, the fixed part cover is located on the rotation axis, block the cylinder one end with frame swing joint, block the cylinder the other end with the extension is articulated.
Preferably, the included angle between the first slide way and the horizontal line and the included angle between the second slide way and the horizontal line are both 5-15 degrees.
Preferably, one end of the rack is further provided with a plurality of protection plates, and the protection plates are arranged around the tray recovery mechanism.
In the technical scheme of the utility model, a first slide way, a second slide way and a tray recovery mechanism are arranged on a frame; arranging a first slide way in an inclined mode, enabling the height of the feeding end of the first slide way to be larger than that of the discharging end of the first slide way, arranging a second slide way below the first slide way in an inclined mode, enabling the height of the feeding end of the second slide way to be larger than that of the discharging end of the second slide way, enabling the feeding end of the first slide way and the discharging end of the second slide way to be correspondingly arranged, and enabling the discharging end of the first slide way and the feeding end of the second slide way to be correspondingly arranged; the tray recovery mechanism is arranged at the discharge end of the first slide way, when the loaded tray is unloaded, the loaded tray moves onto the lifting table from the discharge end of the first slide way, then the lifting driving piece drives the lifting table to descend to the feed end of the second slide way, and as the sliding rail in sliding fit with the lifting table is arranged on the rack, the lifting table can better slide up and down along the rack, and finally the unloaded tray slides to the discharge end of the second slide way from the feed end of the second slide way to be recovered; after the tray after unloading enters into the feed end of second slide, drive assembly drive elevating platform returns to the discharge end of first slide and in order to prepare to carry the tray after next unloading to make the recovery process of whole empty tray can accomplish automatically, do not need manual operation, improved production efficiency, shortened production man-hour.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a tray recycling device of the present invention;
FIG. 2 is an enlarged schematic view of region B of FIG. 1;
fig. 3 is a schematic front view of the tray recycling device of the present invention;
fig. 4 is a schematic view of a partial structure of the tray recycling device of the present invention;
FIG. 5 is an enlarged view of area A of FIG. 4;
fig. 6 is a schematic structural view of a first slide and a second slide in the tray recycling device of the present invention;
fig. 7 is a schematic structural view of a blocking mechanism in the tray recycling device of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
62 | |
| 11 | |
70 | |
| 20 | |
71 | |
| 30 | |
72 | |
| 40 | |
73 | |
| 41 | |
731 | Groove |
| 42 | |
80 | |
| 50 | |
90 | |
| 51 | |
91 | |
| 52 | |
92 | |
| 60 | |
93 | |
| 61 | |
94 | Fixed block |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1 and 4, in an embodiment of the present invention, a tray recycling device is provided, which includes a frame 10, and a first slide 20, a second slide 30 and a tray recycling mechanism 40 disposed on the frame 10; the first slideway 20 is used for conveying a tray 70 for loading, the second slideway 30 is used for conveying a tray 70 for unloading, the second slideway 30 is arranged below the first slideway 20, the first slideway 20 and the second slideway 30 are both arranged in an inclined manner, the height of the feeding end of the first slideway 20 is greater than that of the discharging end of the first slideway 20, and the height of the feeding end of the second slideway 30 is greater than that of the discharging end of the second slideway 30; the feeding end of the second slideway 30 is arranged corresponding to the discharging end of the first slideway 20, and the discharging end of the second slideway 30 is arranged corresponding to the feeding end of the first slideway 20; tray recovery mechanism 40 is located the discharge end department of first slide 20, and tray recovery mechanism 40 includes elevating platform 41 and sets up the lift driving piece in the below of elevating platform 41, and elevating platform 41 is used for placing the tray 70 after unloading, is provided with on the frame 10 with elevating platform 41 sliding fit's slide rail 52, and the lift driving piece is used for driving elevating platform 41 to rise to the discharge end department of first slide 20 or descend to the feed end department of second slide 30.
Hereinafter, the exhaust pipe or the muffler pipe is loaded using the tray 70 by taking the material as an example.
In this embodiment, a first slide way 20 is disposed on the machine frame 10, a second slide way 30 is disposed below the first slide way 20, a feeding end of the first slide way 20 is disposed corresponding to a discharging end of the second slide way 30, and a discharging end of the first slide way 20 is disposed corresponding to a feeding end of the second slide way 30. The first slide way 20 and the second slide way 30 are both arranged obliquely downwards, the height of the feeding end of the first slide way 20 is greater than that of the discharging end of the first slide way 20, and the height of the feeding end of the second slide way 30 is greater than that of the discharging end of the second slide way 30. The first slide way 20 is arranged obliquely downwards, so that the loading tray 70 can be guaranteed to directly slide from the feeding end of the first slide way 20 to the discharging end of the first slide way 20 by means of the oblique inertia acting force of the first slide way 20 in the conveying process, and the initial position of the lifting table 41 is flush with the discharging end of the first slide way 20. After the loaded tray 70 is unloaded, the loaded tray 70 moves from the discharge end of the first slideway 20 to the lifting platform 41, then the lifting driving piece drives the lifting platform 41 to descend to the feed end of the second slideway 30, and as the slide rail 52 in sliding fit with the lifting platform 41 is arranged on the rack 10, the lifting platform 41 can better slide up and down along the rack 10, and finally the unloaded tray 70 slides from the feed end of the second slideway 30 to the discharge end of the second slideway 30 for recovery; after the discharged tray 70 enters the feeding end of the second slide way 30, the driving assembly drives the lifting table 41 to return to the discharging end of the first slide way 20 to prepare for conveying the next discharged tray 70, so that the whole recovery process of the empty tray 70 can be automatically completed, manual operation is not needed, the production efficiency is improved, and the production time is shortened.
As shown in fig. 5, a supporting plate 50 is disposed below the lifting platform 41, a slider 51 slidably engaged with a slide rail 52 is disposed on the supporting plate 50, the lifting driving member is a lifting cylinder 42, one side of the supporting plate 50 is connected to the lifting platform 41 through a connecting block, the other side of the supporting plate 50 is connected to a piston rod of the lifting cylinder 42, and the lifting cylinder 42 is used for driving the supporting plate 50 to ascend or descend so as to drive the lifting platform 41 to ascend or descend. In a preferred embodiment, a supporting plate 50 is disposed below the lifting platform 41, the supporting plate 50 is connected to the lifting platform 41 through a connecting block, the bottom center of the supporting plate 50 is connected to a piston rod of the lifting cylinder 42, the piston rod of the lifting cylinder 42 is driven to move up or down by driving the supporting plate 50, so that the sliding blocks 51 at two ends of the supporting plate 50 move up and down on the sliding rails 52, thereby driving the whole lifting platform 41 to move up or down, and the lifting cylinder 42 is used to drive the lifting platform 41 to move up and down at a higher speed and with a higher efficiency than the driving motor. And the quantity of slide rail 52 and slider 51 is two and the one-to-one setting, and two slide rails 52 correspond the both sides setting of elevating platform 41 respectively, and two sliders 51 set up respectively in the both sides of backup pad 50. Thus, both sides of the lifting platform 41 can be lifted and lowered rapidly at the same time, and the balance of both sides of the lifting platform 41 is maintained.
As shown in fig. 4 and 5, a balance shaft 60 is disposed at the bottom of the lifting platform 41, two ends of the balance shaft 60 are respectively sleeved with a gear 61, two racks 62 are disposed on the rack 10, the two racks 62 are respectively disposed corresponding to the two gears 61, the extending direction of the racks 62 is the same as the extending direction of the slide rail 52, and the number of teeth on the two racks 62 is the same and is arranged in a one-to-one correspondence manner. In a preferred embodiment, a balance shaft 60 is disposed at the bottom of the elevating platform 41 in parallel with the extending direction of the elevating platform 41, racks 62 are disposed at both sides of the frame 10, and gears 61 engaged with the racks 62 are disposed at both ends of the balance shaft 60 at positions corresponding to the racks 62. The two racks 62 have the same number of teeth, and the upper and lower ends of the two racks 62 are disposed correspondingly, and the widths of the tooth grooves of the teeth of the two racks 62 are the same. When the lifting cylinder 42 drives the lifting table 41 to ascend or descend, the matching of the gear 61 and the rack 62 is used for controlling the ascending or descending distances of the two ends of the lifting table 41 to be the same, so that the balance shaft 60 is beneficial to enabling the two sides of the lifting table 41 to ascend and descend synchronously, and the damage to the lifting cylinder 42 caused by the unbalanced stress of the lifting cylinder 42 is avoided.
As shown in fig. 2 and 3, the first slideway 20 and the second slideway 30 are both provided with two sliding chutes 80, openings of the two sliding chutes 80 on the first slideway 20 are oppositely arranged, openings of the two sliding chutes 80 on the second slideway 30 are oppositely arranged, and the tray 70 is provided with a plurality of bearings 72 which are in sliding fit with the sliding chutes 80. In a preferred embodiment, two sliding chutes 80 are provided on the inner side of the first slideway 20 and the inner side of the second slideway 30, the extending direction of the sliding chute 80 on the first slideway 20 is the same as the extending direction of the first slideway 20, and the extending direction of the sliding chute 80 on the second slideway 30 is the same as the extending direction of the second slideway 30.
As shown in fig. 1, the tray 70 includes a supporting frame 71, bearings 72 are disposed at two ends of the supporting frame 71, a blocking mechanism 90 is disposed on one side of the frame 10 close to the lifting platform 41, the blocking mechanism 90 is located below the first slideway 20, the blocking mechanism 90 includes a rotating shaft 91 and a rotary driving assembly, two ends of the rotating shaft 91 are respectively connected to two ends of the frame 10, a blocking block 92 is disposed on the rotating shaft 91, and the rotary driving assembly is configured to drive the rotating shaft 91 to rotate, so that the blocking block 92 brakes the loaded tray 70 towards the supporting frame 71, or the blocking block 92 is away from the supporting frame 71 to brake the loaded tray 70.
In a preferred embodiment, the supporting frame 71 is slidably engaged with the sliding groove 80 through the bearings 72 at both ends, so that when the tray 70 slides on the sliding groove 80 by its own weight, the plurality of bearings 72 are driven to slide along the extending direction of the sliding groove 80, and the whole supporting frame 71 is driven to slide on the first sliding rail 20 or the second sliding rail 30 along the inclined direction. In addition, the fixing plates 73 are respectively arranged at two ends of the supporting frame 71, the fixing plates 73 are provided with grooves 731 with upward openings, the exhaust pipe is placed on the tray 70, and when the weight of the exhaust pipe is relatively large, the grooves 731 play a certain role in fixing and supporting the exhaust pipe.
Wherein, as shown in fig. 7, the rotation driving assembly includes fixed block 94 and blocks cylinder 93, and fixed block 94 includes the fixed part and the extension of being connected with the fixed part, and the extension deviates from one side extension of fixed part, and on the rotation axis 91 was located to the fixed part cover, the one end and the frame 10 swing joint of blocking cylinder 93 blocked cylinder 93, the other end and the extension of blocking cylinder 93 are articulated. When the loading tray 70 at the discharging end of the first slideway 20 is not moved onto the lifting table 41, in order to prevent the loading tray 70 behind the first slideway 20 from continuously sliding towards the discharging end of the first slideway 20 to cause the stacking of the tray 70, the blocking cylinder 93 drives the rotating shaft 91 to rotate at the moment, so that the rotating shaft 91 drives the free end of the blocking block 92 to face the direction of the supporting frame 71 to brake the loading tray 70, and at the moment, the loading tray 70 stays at the original position and does not slide any more; when the loading tray 70 at the discharge end of the first chute 20 is moved onto the lifting table 41, the blocking cylinder 93 drives the rotating shaft 91 to rotate, so that the rotating shaft 91 drives the free end of the blocking block 92 away from the supporting frame 71 to release the brake on the loading tray 70, so that the loading tray 70 continues to slide toward the discharge end of the first chute 20.
Moreover, the inclination angle of the first slide way 20 and the inclination angle of the second slide way 30 are both 5 ° to 15 °, as shown in fig. 6, the included angle between the first slide way 20 and the horizontal line is β, the included angle between the second slide way 30 and the horizontal line is α, and the value range of β is 5 ° to 15 °, and in this inclination angle range, when the tray 70 slides on the first slide way 20 or the second slide way 30, the tray recovery mechanism 40 does not get too late to recover the tray 70 due to too fast sliding caused by too large inclination angle, or the recovery efficiency of the tray 70 is not affected due to too slow sliding caused by too small inclination angle.
The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a tray recovery unit, its characterized in that, tray recovery unit includes the frame and set up in the frame:
the first slide way is used for conveying the loaded tray, the first slide way is obliquely arranged, and the height of the feeding end of the first slide way is greater than that of the discharging end of the first slide way;
the second slide way is used for conveying the unloaded tray, is arranged below the first slide way and is obliquely arranged, and the height of the feeding end of the second slide way is greater than that of the discharging end of the second slide way; the feeding end of the second slideway is arranged corresponding to the discharging end of the first slideway, and the discharging end of the second slideway is arranged corresponding to the feeding end of the first slideway;
mechanism is retrieved to tray, mechanism is retrieved to tray is located the discharge end department of first slide, mechanism is retrieved to tray include the elevating platform with set up in the lift driving piece of the below of elevating platform, the elevating platform is used for placing after unloading the tray, be provided with in the frame with elevating platform sliding fit's slide rail, the lift driving piece is used for the drive the elevating platform rises to the discharge end department of first slide or descend to the feed end department of second slide.
2. The tray recycling device according to claim 1, wherein a supporting plate is disposed below the lifting platform, a sliding block slidably engaged with the sliding rail is disposed on the supporting plate, the lifting driving member is a lifting cylinder, one side of the supporting plate is connected to the lifting platform through a connecting block, the other side of the supporting plate is connected to a piston rod of the lifting cylinder, and the lifting cylinder is used to drive the supporting plate to ascend or descend so as to drive the lifting platform to ascend or descend.
3. The tray recycling device according to claim 2, wherein the number of the sliding rails and the sliding blocks is two and the sliding rails and the sliding blocks are arranged in a one-to-one correspondence, the two sliding rails are arranged corresponding to two sides of the lifting platform respectively, and the two sliding blocks are arranged on two sides of the supporting plate respectively.
4. The tray recycling device according to claim 3, wherein a balance shaft is provided at the bottom of the lifting platform, gears are respectively sleeved at two ends of the balance shaft, two racks engaged with the gears are provided on the rack, the two racks are respectively provided corresponding to the two gears, the extending direction of the racks is the same as the extending direction of the slide rail, and the number of the teeth on the two racks is the same and the two racks are arranged in a one-to-one correspondence manner.
5. The tray recycling apparatus according to any one of claims 1 to 4, wherein the first and second runners are provided with two sliding grooves, the openings of the two sliding grooves on the first runner are opposite to each other, the openings of the two sliding grooves on the second runner are opposite to each other, and the tray is provided with a plurality of bearings slidably engaged with the sliding grooves.
6. The tray recycling device according to claim 5, wherein the tray includes a supporting frame, the bearings are disposed at two ends of the supporting frame, a blocking mechanism is disposed at a side of the frame close to the lifting platform, the blocking mechanism is located below the first slideway, the blocking mechanism includes a rotating shaft and a rotary driving component, two ends of the rotating shaft are respectively connected with two sides of the frame, a blocking block is disposed on the rotating shaft, and the rotary driving component is configured to drive the rotating shaft to rotate, so that the blocking block faces the supporting frame to brake the tray loaded with material, or the blocking block is away from the supporting frame to brake the tray loaded with material.
7. The tray recycling apparatus according to claim 6, wherein the number of the rotating shafts is two, two of the rotating shafts are respectively provided corresponding to both sides of the tray, two stoppers are provided on each rotating shaft, and two of the stoppers are respectively provided near both ends of the rotating shaft.
8. The tray recycling device according to claim 7, wherein the rotary driving assembly includes a fixing block and a blocking cylinder, the fixing block includes a fixing portion and an extending portion connected to the fixing portion, the extending portion extends away from one side of the fixing portion, the fixing portion is sleeved on the rotary shaft, one end of the blocking cylinder is movably connected to the frame, and the other end of the blocking cylinder is hinged to the extending portion.
9. The tray recycling apparatus of any one of claims 1 to 4, wherein the angle between the first chute and the horizontal and the angle between the second chute and the horizontal are both between 5 ° and 15 °.
10. The tray retrieval device of any one of claims 1-4, wherein the frame is further provided with a plurality of protective plates at one end, the plurality of protective plates being disposed around the tray retrieval mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220914.3U CN210312015U (en) | 2019-07-29 | 2019-07-29 | Tray recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220914.3U CN210312015U (en) | 2019-07-29 | 2019-07-29 | Tray recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210312015U true CN210312015U (en) | 2020-04-14 |
Family
ID=70127181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921220914.3U Active CN210312015U (en) | 2019-07-29 | 2019-07-29 | Tray recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210312015U (en) |
-
2019
- 2019-07-29 CN CN201921220914.3U patent/CN210312015U/en active Active
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