CN217141778U - A receive material double-barreled machine and construct for aluminum product production - Google Patents
A receive material double-barreled machine and construct for aluminum product production Download PDFInfo
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- CN217141778U CN217141778U CN202122055046.1U CN202122055046U CN217141778U CN 217141778 U CN217141778 U CN 217141778U CN 202122055046 U CN202122055046 U CN 202122055046U CN 217141778 U CN217141778 U CN 217141778U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model provides a material receiving roll aligning mechanism for aluminum product production, which comprises two groups of lifting support devices which are oppositely arranged, and an upper material receiving roll and a lower material receiving roll are arranged between the two groups of lifting support devices; the lifting support device comprises a support device and a lifting device, and the support device comprises a bottom plate, a cover plate and an upright post; the lower material receiving roller is fixedly arranged on the cover plate through a lower mounting frame, and the upper material receiving roller is arranged between the two groups of supporting devices through an upper mounting frame; the lifting device is fixedly arranged on the cover plate and penetrates through the cover plate to be fixedly connected with the top of the upper mounting frame so as to drive the upper material receiving roller to lift. The utility model can drive the upper material receiving roller to lift up and down by arranging the lifting device, is convenient for adjusting the distance between the upper material receiving roller and the lower material receiving roller, can adjust the gap between the upper material receiving roller and the lower material receiving roller along with the use, and ensures the processing precision; in addition, the lifting device can adjust the gap length between the upper material receiving roller and the lower material receiving roller, so that the aluminum profile feeding device is suitable for aluminum profiles of different sizes to be used, and the use range is enlarged.
Description
Technical Field
The utility model belongs to the technical field of receiving agencies, especially, relate to a receive material to roller mechanism for aluminum product production.
Background
Aluminum is one of the most important non-ferrous metal varieties. Because of its good characteristics (low density, good plasticity and formability) and easy recovery, pure aluminum and aluminum alloy have become important basic materials in household appliances, and the regeneration of parts such as hot parts and conductive parts of household appliances and the regeneration and utilization of waste aluminum have become the most important parts for the regeneration and utilization of nonferrous metals, and the energy consumption and the regeneration cost are much lower than those of the original aluminum production.
In the production process of the aluminum material, the process of discharging and receiving the material is provided, when the material is received, the aluminum material needs to pass through an upper roller and a lower roller which roll relatively to each other for correction, the gap between the two rollers affects the correction effect and is affected by the machining precision, and the gap between the two rollers can deviate after the rollers run for a long time; and the gap between the existing rollers is not easy to adjust, thereby influencing the application range of the rollers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of providing a material collecting roll aligning mechanism for aluminum product production, the utility model can drive an upper material receiving roll to lift up and down by arranging a lifting device, so as to adjust the distance between the upper material receiving roll and a lower material receiving roll, and the gap between the upper material receiving roll and the lower material receiving roll can be adjusted along with the use, thereby ensuring the processing precision; in addition, the lifting device can adjust the gap length between the upper material receiving roller and the lower material receiving roller, so that the aluminum profile feeding device is suitable for aluminum profiles of different sizes to be used, and the use range is enlarged.
In order to solve the technical problem, the utility model discloses a technical scheme is: a material receiving and roll aligning mechanism for aluminum product production comprises two groups of lifting supporting devices which are oppositely arranged, wherein an upper material receiving roll and a lower material receiving roll are arranged between the two groups of lifting supporting devices from top to bottom;
the lifting support device comprises a support device and a lifting device fixed on the support device, the support device comprises a bottom plate, a cover plate and upright posts, and the bottom plate and the cover plate are fixedly installed through the two upright posts which are symmetrically arranged;
two ends of the lower material receiving roller are fixedly arranged on the bottom plate through a lower mounting frame, the lower mounting frame is positioned between the two stand columns, two ends of the upper material receiving roller are arranged between the two groups of supporting devices through an upper mounting frame, and the upper mounting frame is positioned between the two stand columns and arranged in a sliding mode along the contact surfaces of the two stand columns;
the lifting device is fixedly arranged on the cover plate and penetrates through the cover plate to be fixedly connected with the top of the upper mounting frame so as to drive the upper material receiving roller to lift;
the lower material receiving roller and the lower mounting frame and the upper material receiving roller and the upper mounting frame are connected through bearings.
In the technical scheme, the lifting device is used for driving the upper receiving roller to move up and down and perform positioning, so that the gap between the upper receiving roller and the lower receiving roller is changed, the machining precision is kept, and the application range of the device is improved; the supporting device is used for fixedly mounting the lifting device and limiting the upper material receiving roller and the lower material receiving roller; thereby receive the material roller down and fix on the bottom plate through mounting bracket down thereby will receive the position of material roller down and fix, go up and receive the material roller and then install between two sets of strutting arrangement through last mounting bracket, go up the mounting bracket and slide along the stand, the stand will go up the mounting bracket and carry on spacingly, can vertical removal under elevating gear's drive at last mounting bracket to guarantee that the position does not deviate. Receive the material roller and go up and down to go up and down through setting up elevating gear can drive to receive the distance of material roller and receipts material roller down on adjusting, can adjust after long-time the use and receive the clearance between material roller and the receipts material roller down, guarantee the machining precision.
Further, the bearing is a self-aligning roller bearing.
Further, elevating gear includes worm wheel, worm, connecting axle and support frame, worm wheel and worm fixed mounting are in the support frame, and worm wheel and worm meshing are connected, the fixed connecting axle that is provided with in the worm wheel axle center, support frame fixed mounting is on the apron, just the worm runs through apron and the top of last mounting bracket carry out fixed mounting.
Furthermore, two lifting devices in the two groups of lifting supporting devices are fixedly connected through a synchronous fixing device, so that the lifting devices in the two groups of lifting supporting devices are synchronously carried out during lifting.
Furthermore, the synchronous fixing device comprises two mounting shafts, a first flange and a second flange, wherein a first connecting pipe is fixedly welded at the first end of each mounting shaft, a first positioning threaded hole is formed in the first connecting pipe, and a threaded fixing hole is formed at the second end of each mounting shaft;
the first flange and the second flange are both provided with a second connecting pipe and a flange disc, the second connecting pipe is provided with a second positioning hole, the flange disc is provided with a connecting hole, and the first flange and the second flange are fixed by penetrating the connecting hole through a bolt and matching with a nut;
the second ends of the two mounting shafts are respectively inserted into the second connecting pipes of the first flange and the second flange and penetrate through the second positioning holes through bolts to be in threaded connection with the threaded fixing holes;
one end of each of the connecting shafts in the two groups of lifting supporting devices is inserted into the first connecting pipes of the two mounting shafts respectively and penetrates through the first positioning threaded holes through bolts for locking and fixing.
Furthermore, the end part of the flange plate of the first flange is provided with a positioning hole, the end part of the flange plate of the second flange is provided with a positioning block, and the positioning block is inserted into the positioning hole.
Furthermore, the cross sections of the positioning hole and the positioning block are regular polygons with the same size.
Further, the stand is square pipe, the stand passes through bolt and bottom plate and apron fixed connection.
Furthermore, the bottom plate is provided with a mounting hole.
The utility model has the advantages and positive effects that:
1. the utility model discloses in can drive through setting up elevating gear and receive the material roller and go up and down to receive the distance of material roller and lower receipts material roller on adjusting, can adjust after long-time the use and receive the clearance between material roller and the lower receipts material roller, guarantee the machining precision.
2. The utility model provides a lifting device can adjust and receive the material roller and receive down the clearance length between the material roller to adapt to not unidimensional aluminium alloy and use, improve application range.
3. The utility model provides a two sets of elevating gear carry out fixed connection through synchronous fixing device to realize synchronous lift, thereby make the last mounting bracket of receiving the material roller both sides rise with the speed and descend when using elevating gear to adjust and receive the material roller, thereby make and receive the material roller and remain parallel throughout, and then guarantee to receive the material roller and receive the even stability in clearance between each part of material roller down.
Drawings
FIG. 1 is a side view of a material receiving roll mechanism for aluminum production according to the present invention;
FIG. 2 is a front sectional view of a material collecting roll mechanism for aluminum production according to the present invention;
FIG. 3 is a top view of a material collecting roller mechanism for aluminum production according to the present invention;
FIG. 4 is a schematic structural view of a synchronous fixing device in a material receiving roll mechanism for aluminum product production according to the present invention;
FIG. 5 is an enlarged view of the structure A of FIG. 4;
FIG. 6 is a schematic structural view of a first flange and a second flange of a material receiving roll mechanism for aluminum product production according to the present invention;
FIG. 7 is a schematic view of a material collecting roll mechanism for aluminum production according to the present invention;
in the figure:
1-lifting supporting device, 11-supporting device, 111-bottom plate, 1111-mounting hole, 112-cover plate, 113-upright post, 12-lifting device, 121-worm wheel, 122-worm, 123-connecting shaft and 124-supporting frame;
2-feeding a material receiving roller; 3-lower material receiving roller; 4-lower mounting rack; 5, mounting a mounting rack; 6-a bearing;
7-synchronous fixing device, 71-mounting shaft, 711-first connecting pipe, 712-first positioning threaded hole, 713-threaded fixing hole, 72-first flange, 721-second connecting pipe, 722-flange, 7221-positioning hole, 7222-positioning block, 724-second positioning hole, 725-connecting hole and 73-second flange.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Example (b):
as shown in fig. 1 to 3, the present embodiment provides a material receiving roll aligning mechanism for aluminum product production, which includes two sets of lifting support devices 1 arranged oppositely, and an upper material receiving roll 2 and a lower material receiving roll 3 are arranged between the two sets of lifting support devices 1 from top to bottom; the lifting support device 1 comprises a support device 11 and a lifting device 12 fixed on the support device 11, the support device 11 comprises a bottom plate 111, a cover plate 112 and upright posts 113, and the bottom plate 111 and the cover plate 112 are fixedly installed through the two upright posts 113 which are symmetrically arranged; the lifting device 12 is used for driving the upper receiving roller 2 to move up and down and positioning, so that the gap between the upper receiving roller 2 and the lower receiving roller 3 is changed, the machining precision is kept, and the application range of the device is widened; the supporting device 11 is used for fixedly mounting the lifting device 1 and limiting the upper material receiving roller 2 and the lower material receiving roller 3;
referring to fig. 1 and 2, two ends of a lower material receiving roller 3 are fixedly mounted on a bottom plate 111 through a lower mounting frame 4, the lower mounting frame 4 is located between two upright posts 113, two ends of an upper material receiving roller 2 are mounted between two groups of supporting devices 11 through an upper mounting frame 5, and the upper mounting frame 5 is located between the two upright posts 113 and is arranged in a sliding manner along a contact surface of the two upright posts 113; the lifting device 12 is fixedly arranged on the cover plate 112, and the lifting device 12 penetrates through the cover plate 112 and is fixedly connected with the top of the upper mounting frame 5 so as to drive the upper material receiving roller 2 to lift; the lower material receiving roller 3 is fixed on the bottom plate 111 through the lower mounting frame 4, so that the position of the lower material receiving roller 3 is fixed, the upper material receiving roller 2 is installed between the two groups of supporting devices 11 through the upper mounting frame 5, the upper mounting frame 5 slides along the upright post 113, the upright post 113 limits the position of the upper mounting frame 5, and the upper mounting frame 5 can vertically move under the driving of the lifting device 12, so that the position is not deviated;
receive down between material roller 3 and the lower mounting bracket 4, receive on and all be connected through bearing 6 between material roller 2 and the last mounting bracket 5 for on receive material roller 2 and receive material roller 3 down and can freely rotate.
In the present embodiment, the bearing 6 is a self-aligning roller bearing.
Referring to fig. 1, in the present embodiment, the lifting device 12 includes a worm wheel 121, a worm 122, a connecting shaft 123 and a supporting frame 124, the worm wheel 121 and the worm 122 are fixedly installed in the supporting frame 124, the worm wheel 121 and the worm 122 are engaged and connected, the connecting shaft 123 is fixedly disposed on the axis of the worm wheel 121, the supporting frame 124 is fixedly installed on the cover plate 112, and the worm 122 penetrates through the cover plate 112 and is fixedly installed on the top of the upper mounting frame 5. Wherein, worm wheel 121 is connected through connecting axle 123 and power device and rotates in order to drive worm wheel 121, and worm wheel 121 drives worm 122 when rotating and goes up and down to the drive is gone up mounting bracket 5 and is gone up and down with last material receiving roller 2, realizes adjusting last material receiving roller 2, thereby adjusts the clearance between material receiving roller 2 and the lower material receiving roller 3.
Referring to fig. 2 and 3, in the present embodiment, two lifting devices 12 of two sets of lifting supporting devices 1 are fixedly connected by the synchronous fixing device 7, so that the lifting devices 12 of two sets of lifting supporting devices 1 are synchronously operated during lifting. Two sets of elevating gear 1 carry out fixed connection through synchronous fixing device 7 to realize that two sets of elevating gear 1 go up and down simultaneously with the same frequency, with the speed, consequently when will go up receiving roll 2 and adjust, guarantee to go up receiving roll 2 both ends and adjust simultaneously, thereby guarantee to go up receiving roll 2 and receive down that the straight line interval between each part of material roller 3 is unanimous down, keeps the machining precision. Therefore, the two groups of lifting devices 12 can be lifted by using the same power device to realize synchronous lifting, one connecting shaft 123 in the two groups of lifting devices 1 is connected with the corresponding power device, and the power device preferably selects a servo motor.
Referring to fig. 4 to 6, in the present embodiment, the synchronous fixing device 7 includes two mounting shafts 71, a first flange 72 and a second flange 73, a first connecting pipe 711 is fixedly welded to a first end of the mounting shaft 71, a first positioning threaded hole 712 is formed in the first connecting pipe 711, and a threaded fixing hole 713 is formed in a second end of the mounting shaft 71;
the first flange 72 and the second flange 73 are both provided with a second connecting pipe 721 and a flange plate 722, the second connecting pipe 721 is provided with a second positioning hole 724, the flange plate 722 is provided with a connecting hole 725, and the first flange 72 and the second flange 73 are fixed by the bolt penetrating through the connecting hole 725 and matching with a nut; the first flange 72 and the second flange 73 are fixed into a whole through bolts, so that the dismounting and the replacement are convenient, and the normal mounting and the use are also convenient;
the second ends of the two mounting shafts 71 are inserted into the second connecting pipes 721 of the first flange 72 and the second flange 73, and are threaded with the threaded fixing holes 713 through the second positioning holes 724 by bolts; through the bolt connection, the mounting shaft 71 and the first flange 72 and the second flange 73 rotate simultaneously, and the relative rotation phenomenon cannot occur;
one end of the connecting shaft 123 in the two sets of lifting support devices 1 is inserted into the first connecting pipe 711 of the two mounting shafts 71 respectively and is locked and fixed by penetrating the first positioning threaded hole 712 through a bolt, so that the connecting shaft 123 and the mounting shafts 71 are fixedly connected and rotate simultaneously without relative rotation. Wherein, two installation axles 71 carry out fixed connection through first flange 72 and second flange 73, and the tip of two installation axles 71 then carries out fixed connection with the connecting axle 123 of two sets of elevating gear 12, thereby make two connecting axles 123 through installation axle 71, first flange 72 and second flange 73 fixed connection and spacing each other, make two connecting axles 123 rotate with the same frequency and the same speed, thereby make the worm wheel 121 in two sets of elevating gear 12 rotate with the same rotational speed and with the same direction, finally make two worms 122 rise or descend simultaneously according to same speed, in order to guarantee to go up the balanced lift of receipts material roller 2, keep the level, make the clearance between adjusted last receipts material roller 2 and the lower receipts material roller 3 unanimous, keep the precision.
In addition, the length of the mounting shaft 71 can be changed according to the requirement, so that the length of the whole synchronous fixing device 7 is adjusted, the synchronous fixing device is suitable for connecting and fixing the connecting shafts 123 in the two groups of lifting devices 12 with different widths, the application range is wide, and the installation is simple and convenient.
Referring to fig. 6, in the present embodiment, a positioning hole 7221 is formed in an end portion of the flange 722 of the first flange 72, a positioning block 7222 is formed in an end portion of the flange 722 of the second flange 73, and the positioning block 7222 is inserted into the positioning hole 7221. The positioning holes 7221 and the positioning blocks 7222 are arranged, so that the first flange 72 and the second flange 73 can be conveniently and oppositely inserted and fixed, and normal installation is realized.
In the present embodiment, the cross sections of the positioning hole 7221 and the positioning block 7222 are regular polygons having the same size. The positioning hole 7221 and the positioning block 7222 are arranged to be regular polygons, so that the positioning hole 7221 and the positioning block 7222 are limited on the basis of convenient insertion, and the first flange 72 and the second flange 73 can synchronously rotate when rotating, so that the normal transmission effect is kept.
In this embodiment, the upright 113 is a square tube, and the upright 113 is fixedly connected to the bottom plate 111 and the cover plate 112 by bolts.
In this embodiment, the bottom plate 111 has a mounting hole 1111. The mounting holes 111 are provided to facilitate the fixed mounting of the device on a floor or corresponding equipment for normal use.
The utility model discloses when using: (refer to both FIG. 1 and FIG. 7)
When in use, the bottom plate 111 of the device is fixedly arranged on equipment or the ground to be installed.
One of them connecting axle 123 in this device is connected with servo motor as required, later start servo motor for thereby the worm 122 in elevating gear 12 goes up and down and adjusts the clearance between material roller 2 and the lower material roller 3 of receiving, as figure 1 and figure 7, be the schematic diagram that material roller 2 removed in elevating gear 12 drive promptly, can use corresponding thickness standard component to place and adjust in the adjustment process between material roller 2 and the lower material roller 3 of receiving in the cooperation, with servo motor stall after adjusting suitable position, it finishes with the lower material roller 3 regulation to be about to go up material roller 2 and receive material roller 3 soon this moment, thereby fix the clearance between the two, can use.
When following with long-time the back of using, in order to avoid receiving on the material roller 2 and receiving down the material roller 3 between the clearance take place the deviation, can start servo motor once more for receiving material roller 2 and removing on elevating gear 12 drives, thereby receiving the material roller 2 and receiving down the clearance between the material roller 3 on the adjustment, in order to guarantee the machining precision.
The utility model discloses a receive material double-barreled of material for aluminum product production constructs. Simple structure receives the clearance between material roller 2 and the lower material roller 3 in the adjustment of being convenient for to can guarantee the machining precision, can be the device simultaneously and be applicable to the processing of the aluminium alloy of different thickness, the range of application is wide.
The above detailed description of the embodiments of the present invention is only for the preferred embodiments of the present invention, and the present invention should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (9)
1. The utility model provides a receive material roll setting mechanism for aluminum product production which characterized in that: the device comprises two groups of lifting supporting devices (1) which are oppositely arranged, wherein an upper material receiving roller (2) and a lower material receiving roller (3) are arranged between the two groups of lifting supporting devices (1) from top to bottom;
the lifting support device (1) comprises a support device (11) and a lifting device (12) fixed on the support device (11), wherein the support device (11) comprises a bottom plate (111), a cover plate (112) and upright posts (113), and the bottom plate (111) and the cover plate (112) are fixedly installed through the two upright posts (113) which are symmetrically arranged;
the two ends of the lower material receiving roller (3) are fixedly arranged on the bottom plate (111) through a lower mounting frame (4), the lower mounting frame (4) is located between the two upright posts (113), the two ends of the upper material receiving roller (2) are arranged between the two groups of supporting devices (11) through an upper mounting frame (5), and the upper mounting frame (5) is located between the two upright posts (113) and is arranged in a sliding mode along the contact surfaces of the two upright posts (113);
the lifting device (12) is fixedly installed on the cover plate (112), and the lifting device (12) penetrates through the cover plate (112) and is fixedly connected with the top of the upper installation frame (5) to drive the upper material receiving roller (2) to lift;
the lower material receiving roller (3) and the lower mounting frame (4) and the upper material receiving roller (2) and the upper mounting frame (5) are connected through bearings (6).
2. A material receiving roller mechanism for aluminum material production as recited in claim 1, wherein: the bearing (6) is a self-aligning roller bearing.
3. A material receiving roller mechanism for aluminum material production as recited in claim 1, wherein: elevating gear (12) include worm wheel (121), worm (122), connecting axle (123) and support frame (124), worm wheel (121) and worm (122) fixed mounting are in support frame (124), and worm wheel (121) and worm (122) meshing connection, fixed connecting axle (123) that are provided with on worm wheel (121) axle center, support frame (124) fixed mounting is on apron (112), just worm (122) run through fixed mounting is carried out at the top of apron (112) and last mounting bracket (5).
4. A material receiving roller mechanism for aluminum material production as claimed in claim 3, wherein: two lifting devices (12) in the two groups of lifting supporting devices (1) are fixedly connected through a synchronous fixing device (7), so that the lifting devices (12) in the two groups of lifting supporting devices (1) are synchronously lifted.
5. A material receiving roller mechanism for aluminum material production as set forth in claim 4, wherein: the synchronous fixing device (7) comprises two mounting shafts (71), a first flange (72) and a second flange (73), a first connecting pipe (711) is fixedly welded at the first end of each mounting shaft (71), a first positioning threaded hole (712) is formed in each first connecting pipe (711), and a threaded fixing hole (713) is formed in the second end of each mounting shaft (71);
the first flange (72) and the second flange (73) are both provided with a second connecting pipe (721) and a flange plate (722), the second connecting pipe (721) is provided with a second positioning hole (724), the flange plate (722) is provided with a connecting hole (725), and the first flange (72) and the second flange (73) are fixed by the bolt penetrating through the connecting hole (725) and the nut in a matching way;
the second ends of the two mounting shafts (71) are respectively inserted into the second connecting pipes (721) of the first flange (72) and the second flange (73), and penetrate through the second positioning hole (724) through bolts to be in threaded connection with the threaded fixing hole (713);
one end of each connecting shaft (123) in the two groups of lifting supporting devices (1) is respectively inserted into the first connecting pipes (711) of the two mounting shafts (71) and penetrates through the first positioning threaded holes (712) through bolts for locking and fixing.
6. A material receiving roller mechanism for aluminum material production as set forth in claim 5, wherein: locating holes (7221) have been seted up to the tip of ring flange (722) of first flange (72), the tip of ring flange (722) of second flange (73) is provided with locating piece (7222), locating piece (7222) are inserted and are established in locating hole (7221).
7. A material receiving roller mechanism for aluminum material production as set forth in claim 6, wherein: the sections of the positioning hole (7221) and the positioning block (7222) are regular polygons with the same size.
8. A material receiving roller mechanism for aluminum material production as recited in claim 1, wherein: the upright post (113) is a square tube, and the upright post (113) is fixedly connected with the bottom plate (111) and the cover plate (112) through bolts.
9. The material receiving roller mechanism for aluminum material production as recited in claim 8, wherein: the bottom plate (111) is provided with a mounting hole (1111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055046.1U CN217141778U (en) | 2021-08-27 | 2021-08-27 | A receive material double-barreled machine and construct for aluminum product production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055046.1U CN217141778U (en) | 2021-08-27 | 2021-08-27 | A receive material double-barreled machine and construct for aluminum product production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217141778U true CN217141778U (en) | 2022-08-09 |
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ID=82660142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122055046.1U Active CN217141778U (en) | 2021-08-27 | 2021-08-27 | A receive material double-barreled machine and construct for aluminum product production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217141778U (en) |
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2021
- 2021-08-27 CN CN202122055046.1U patent/CN217141778U/en active Active
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