CN219724121U - High-pressure water dephosphorization device for hot rolled strip steel - Google Patents
High-pressure water dephosphorization device for hot rolled strip steel Download PDFInfo
- Publication number
- CN219724121U CN219724121U CN202321091988.8U CN202321091988U CN219724121U CN 219724121 U CN219724121 U CN 219724121U CN 202321091988 U CN202321091988 U CN 202321091988U CN 219724121 U CN219724121 U CN 219724121U
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- Prior art keywords
- rolled strip
- strip steel
- bottom plate
- fixedly arranged
- hot rolled
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 84
- 239000010959 steel Substances 0.000 title claims abstract description 84
- 230000001681 protective effect Effects 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000012994 industrial processing Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model provides a high-pressure water dephosphorization device for hot rolled strip steel. The high-pressure water dephosphorization device of the hot rolled strip steel comprises: the connecting device comprises a bottom plate, two connecting rods are fixedly arranged at the top of the bottom plate, a frame-shaped water pipe is fixedly arranged at the top end of the connecting rods, a connecting pipe is fixedly arranged on the bottom plate, a plurality of high-pressure spray heads are fixedly arranged on the connecting pipe, the top end of the connecting pipe is fixedly connected with the frame-shaped water pipe, the bottom end of the connecting pipe extends to the lower side of the bottom plate, a high-pressure water suction pump is fixedly arranged below the bottom plate, and a water outlet of the high-pressure water suction pump is fixedly connected with the bottom end of the connecting pipe. The high-pressure water dephosphorization device for the hot rolled strip steel has the advantages of rapidly removing residual water on the hot rolled strip steel and enabling the hot rolled strip steel to rapidly enter the next process.
Description
Technical Field
The utility model relates to the technical field of smelting equipment, in particular to a high-pressure water dephosphorization device for hot rolled strip steel.
Background
The billet is oxidized at high temperature, and a layer of compact phosphorus skin is formed on the surface of the billet. If this scale cannot be removed before rolling, they can affect the surface quality of the finished product during rolling. The residual iron scale can also accelerate the abrasion of the roller and reduce the service life of the roller. Therefore, prior to billet rolling, the phosphate skin is generally removed by the mechanical impact force of high-pressure water. Through retrieving, the patent document of the publication No. CN208991475U proposes a high-pressure water dephosphorization device of hot rolled strip steel, which comprises a booster pump, a return-type water conveying pipeline and a high-pressure dephosphorization nozzle, wherein the periphery of the return-type water conveying pipeline is provided with a mounting frame, the top of the return-type water conveying pipeline is provided with a water inlet, the booster pump is arranged at the water inlet, and the periphery of the inner side of the return-type water conveying pipeline is provided with the high-pressure dephosphorization nozzle.
The existing high-pressure water dephosphorization device can carry out dephosphorization operation on the hot-rolled strip steel, but residual dephosphorization water is adhered to the hot-rolled strip steel after the dephosphorization operation is finished, so that people can carry out next process processing only by removing the residual water adhered to the hot-rolled strip steel through external dewatering equipment after the dephosphorization operation of the hot-rolled strip steel is finished each time, and the working efficiency is affected.
Therefore, it is necessary to provide a new high-pressure water dephosphorization device for hot rolled strip steel to solve the above technical problems.
Disclosure of Invention
The utility model solves the technical problem of providing a high-pressure water dephosphorization device for hot-rolled strip steel, which can rapidly remove residual water on the hot-rolled strip steel and enable the hot-rolled strip steel to rapidly enter the next process.
In order to solve the technical problems, the high-pressure water dephosphorization device for hot rolled strip steel provided by the utility model comprises: the connecting rod comprises a bottom plate and two connecting rods fixedly arranged at the top of the bottom plate, a frame-shaped water pipe is fixedly arranged at the top of the connecting rod, a connecting pipe is fixedly arranged on the bottom plate, a plurality of high-pressure spray heads are fixedly arranged on the connecting pipe, the top of the connecting pipe is fixedly connected with the frame-shaped water pipe, the bottom end of the connecting pipe extends to the lower part of the bottom plate, a high-pressure water suction pump is fixedly arranged below the bottom plate, a water outlet of the high-pressure water suction pump is fixedly connected with the bottom end of the connecting pipe, a rotating column is rotatably arranged on the bottom plate, the bottom end of the rotating column extends to the lower part of the bottom plate, a rotating motor is fixedly arranged at the bottom of the bottom plate, a plurality of lower placing plates are fixedly arranged at the top of the rotating column, rotating rods are fixedly arranged at the bottom ends of the rotating rod, rotating screw rods are respectively and threadedly arranged on the corresponding two upper placing plates, the bottom ends of the rotating screw rods are respectively connected with the corresponding rotating handles, and the rotating handles are fixedly arranged at the top ends of the rotating rods.
Preferably, the top fixed mounting of bottom plate has two vertical boards, two fixed mounting has the gag lever post on the outer wall of one side that vertical board is close to each other, slidable mounting has the movable plate on the gag lever post, two fixed mounting has the semicircle barrel respectively in the bottom of movable plate, fixed mounting has the mounting panel on the gag lever post, the bottom fixed mounting of mounting panel has the biax motor, fixed mounting has adjusting screw respectively on two output shafts of biax motor, and two adjusting screw respectively with two vertical board rotates to be connected.
Preferably, a protective cover is fixedly arranged at the bottom of the bottom plate, and the rotating motor is positioned in the protective cover.
Preferably, a plurality of lower placing plates and a plurality of upper placing plates are respectively fixedly provided with limiting blocks on the outer wall of one side of each lower placing plate.
Preferably, the bottom of the bottom plate is fixedly provided with four supporting legs, the bottom ends of the four supporting legs are respectively fixedly sleeved with an anti-skid sleeve, and the four supporting legs are distributed in a rectangular array.
Preferably, two through holes are respectively formed in the two moving plates, linear bearings are respectively and fixedly arranged in the two through holes, and the limiting rod penetrates through the two linear bearings and is in sliding connection with the inner walls of the two linear bearings.
Preferably, two through holes are formed in the tops of the two lower placing plates correspondingly, the bottom ends of the two rotating screws respectively extend into the two through holes and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected with the outer rings of the two bearings.
Compared with the related art, the high-pressure water dephosphorization device for the hot rolled strip steel has the following beneficial effects:
the utility model provides a high-pressure water dephosphorization device for hot-rolled strip steel, which is characterized in that the hot-rolled strip steel is placed on a plurality of lower placing plates, an upper placing plate is driven to move downwards by clockwise rotation of a rotating handle to extrude the hot-rolled strip steel, the hot-rolled strip steel is fixedly clamped between the lower placing plates and the upper placing plates, two semicircular barrels are driven to be close to each other by rotation of a double-shaft motor to wrap the frame-shaped water pipe and the hot-rolled strip steel, inconvenience caused by spraying dephosphorization water to the places when people dephosphorize the hot-rolled strip steel is prevented, one end of an external water pipe is fixedly provided with a water inlet of a high-pressure water pump, the other end of the external water pipe is placed in a water tank filled with the dephosphorization water, the high-pressure water pump is started to convey the dephosphorization water into the frame-shaped water pipe, finally, the hot-rolled strip steel is driven to rotate a certain angle by slow rotation of a rotating motor, the hot-rolled strip steel is comprehensively cleaned, the high-pressure dephosphorization water is enabled to clean the hot-rolled strip steel by rotating the rotating a rotating shaft motor to quickly spray the dephosphorization water around the lower placing plates, the water is enabled to be rapidly cleaned up by the residual water after the operation, and the hot-rolled strip steel is rapidly processed, and the residual water is enabled to be rapidly removed, and the work is finished.
Drawings
FIG. 1 is a schematic view of a high-pressure water dephosphorization apparatus for hot rolled strip steel according to a preferred embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a schematic view of the lower placement plate of FIG. 1;
FIG. 4 is a perspective view of the high-pressure water dephosphorization device of the hot rolled strip steel provided by the utility model.
Reference numerals in the drawings: 1. a bottom plate; 2. a connecting rod; 3. a frame-shaped water pipe; 4. a connecting pipe; 5. a high pressure suction pump; 6. rotating the column; 7. a rotating motor; 8. a lower placing plate; 9. a high pressure nozzle; 10. placing a plate on the upper surface; 11. rotating the screw; 12. rotating the handle; 13. a semi-circular barrel; 14. a vertical plate; 15. adjusting a screw; 16. a limit rod; 17. a moving plate; 18. a biaxial motor; 19. and a limiting block.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Referring to fig. 1 to fig. 4 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a high-pressure water dephosphorization apparatus for hot rolled strip steel according to the present utility model; FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1; FIG. 3 is a schematic view of the lower placement plate of FIG. 1; FIG. 4 is a perspective view of the high-pressure water dephosphorization device of the hot rolled strip steel provided by the utility model. The high-pressure water dephosphorization device of the hot rolled strip steel comprises: the bottom plate 1, two linking rods 2 are fixedly arranged at the top of the bottom plate 1, the two linking rods 2 are fixedly arranged at the top of the bottom plate 1 through welding, a frame-shaped water pipe 3 is fixedly arranged at the top ends of the two linking rods 2, a connecting pipe 4 is fixedly arranged on the bottom plate 1, a plurality of high-pressure spray heads 9 are fixedly arranged on the connecting pipe 4, the top ends of the connecting pipe 4 are fixedly connected with the frame-shaped water pipe 3, the bottom ends of the connecting pipe 4 extend to the lower part of the bottom plate 1, a high-pressure water suction pump 5 is fixedly arranged below the bottom plate 1, the high-pressure water suction pump 5 starts to convey dephosphorization water into the frame-shaped water pipe 3, finally, the dephosphorization skin adhered on the hot-rolled strip steel is removed through the high-pressure spray heads 9, the water outlet of the high-pressure water suction pump 5 is fixedly connected with the bottom ends of the connecting pipe 4, the connecting pipe 4 is fixedly arranged on the water outlet of the high-pressure water suction pump 5 through a flange, the rotating column 6 is rotatably arranged on the bottom plate 1, the bottom end of the rotating column 6 extends to the lower side of the bottom plate 1, the rotating motor 7 is fixedly arranged at the bottom of the bottom plate 1, in order to prevent external objects from directly colliding with the rotating motor 7 and damaging the rotating motor 7, the service life is influenced, the bottom of the bottom plate 1 is fixedly provided with the protective cover, the rotating motor 7 is positioned in the protective cover, an output shaft of the rotating motor 7 is fixedly connected with the bottom end of the rotating column 6, the top of the rotating column 6 is fixedly provided with a plurality of lower placing plates 8, a rotating rod is arranged above the rotating column 6, the bottom end of the rotating rod is fixedly provided with a plurality of upper placing plates 10, rotating screws 11 are respectively arranged on the corresponding two upper placing plates 10 in a threaded manner, in order to rotatably install the rotating screws 11 on the lower placing plates 8, two penetrating holes are formed in the tops of the corresponding two lower placing plates 8, the bottom ends of the two rotating screws 11 extend into the two through holes respectively and are fixedly sleeved with bearings respectively, outer rings of the two bearings are fixedly connected with outer rings of the two bearings respectively, the rotating screws 11 are enabled to rotate on the lower placing plate 8 through the bearings to be more stable, the bottom ends of the two rotating screws 11 are respectively and rotatably connected with the corresponding lower placing plate 8, rotating handles 12 are fixedly installed on the top ends of the two rotating screws 11 respectively, the rotating screws 11 are driven to rotate through the rotating handles 12, the rotating screws 11 are driven to rotate, the upper placing plate 10 is driven to move downwards to contact with hot-rolled strip steel and extrude the hot-rolled strip steel, and then the hot-rolled strip steel is fixedly clamped between the lower placing plate 8 and the upper placing plate 10.
In order to wrap hot-rolled strip steel, prevent people from spraying dephosphorization water everywhere when dephosphorizing the hot-rolled strip steel, give people work and cause inconvenience, the top fixed mounting of bottom plate 1 has two vertical boards 14, fixed mounting has gag lever post 16 on the outer wall of one side that two vertical boards 14 are close to each other, limit movable board 17 through gag lever post 16, and then make adjusting screw 15 rotate and drive movable board 17 and rotate, slidable mounting has movable board 17 on gag lever post 16, the bottom of two movable boards 17 is fixed mounting respectively has semicircle barrel 13, fixed mounting has the mounting panel on gag lever post 16, the bottom fixed mounting of mounting panel has biax motor 18, fixed mounting has adjusting screw 15 respectively on two output shafts of biax motor 18, and two adjusting screw 15 rotate with two vertical boards 14 respectively, rotate through biax motor 18 and drive two adjusting screw 15 and rotate, two adjusting screw 15 rotate and drive two movable board 17 and are close to each other, two movable board 17 are close to each other and drive two semicircle barrels 13 and contact, and then wrap up frame-shaped water pipe 3 and hot-rolled strip steel, prevent to spray water everywhere when dephosphorization is carried out to people.
In order to limit the horizontal position of the hot rolled strip steel, the hot rolled strip steel is always and stably arranged on the lower placing plates 8, and limit blocks 19 are respectively and fixedly arranged on the outer walls of one sides of the lower placing plates 8 and the upper placing plates 10.
In order to support this device, make the operation of staff more convenient this device, the bottom fixed mounting of bottom plate 1 has four supporting legs, and the fixed cover is equipped with the antiskid cover respectively in the bottom of four supporting legs, increases the frictional force between supporting leg and the ground through the antiskid cover, and then makes this device place more firm subaerial, and four supporting legs are rectangular array and distribute.
In order to reduce the friction between the limiting rod 16 and the moving plate 17, further reduce the abrasion degree of the limiting rod 16, improve the service life of the limiting rod 16, two through holes are respectively formed in the two moving plates 17, linear bearings are respectively fixedly installed in the two through holes, and the limiting rod 16 penetrates through the two linear bearings and is in sliding connection with the inner walls of the two linear bearings.
The working principle of the high-pressure water dephosphorization device of the hot rolled strip steel provided by the utility model is as follows: when the device is needed to remove phosphorus from the hot rolled strip steel, the hot rolled strip steel is firstly placed on a plurality of lower placing plates 8, the rotating handle 12 is rotated clockwise, the rotating handle 12 is rotated to drive the rotating screw 11 to rotate, the rotating screw 11 is rotated to drive the upper placing plates 10 to move downwards to contact with the hot rolled strip steel and extrude the hot rolled strip steel, the hot rolled strip steel is further fixedly clamped between the lower placing plates 8 and the upper placing plates 10, the horizontal position of the hot rolled strip steel is limited by the limiting blocks 19, when the hot rolled strip steel is fixedly arranged on the lower placing plates 8, the double-shaft motor 18 is started, the double-shaft motor 18 is rotated to drive the two adjusting screws 15 to rotate, the two adjusting screws 15 are rotated to drive the two moving plates 17 to be close to each other, the two moving plates 17 are mutually close to drive the two semicircular barrels 13 to be close to and contact with each other, and then the frame-shaped water pipe 3 and the hot rolled strip steel are wrapped, the device prevents people from spraying dephosphorization water everywhere when dephosphorizing hot-rolled strip steel, causes inconvenience for the work of people, one end of an external water pipe is fixedly provided with a water inlet of a high-pressure water pump 5, the other end of the external water pipe is placed in a water tank filled with the dephosphorization water, the high-pressure water pump 5 is started to convey the dephosphorization water into a frame-shaped water pipe 3, finally the dephosphorization water is conveyed onto the hot-rolled strip steel through a high-pressure spray nozzle 9 to clear the phosphorus skin adhered on the hot-rolled strip steel, meanwhile, a rotating motor 7 is started, a rotating column 6 is driven to rotate by slow rotation of the rotating motor 7, a lower placing plate 8 is driven to rotate by rotation of the rotating column 6, the hot-rolled strip steel is driven to rotate by rotation of the lower placing plate 8, the hot-rolled strip steel is driven to rotate by a certain angle, the high-pressure dephosphorization water is further enabled to comprehensively clear the hot-rolled strip steel, when the dephosphorization of the hot-rolled strip steel is completed, the rotation speed of the rotating motor 7 is increased, so that the hot rolled strip steel rapidly rotates between the lower placing plate 8 and the upper placing plate 10, and then residual water adhered on the hot rolled strip steel is thrown out through centrifugal force, so that the cleaning operation of the residual water on the hot rolled strip steel is completed, the hot rolled strip steel can rapidly enter the next industrial processing, and the working efficiency is improved.
Compared with the related art, the high-pressure water dephosphorization device for the hot rolled strip steel has the following beneficial effects:
the utility model provides a high-pressure water dephosphorization device of hot-rolled strip steel, which is characterized in that the hot-rolled strip steel is placed on a plurality of lower placing plates 8, an upper placing plate 10 is driven to move downwards by a clockwise rotating handle 12 to extrude the hot-rolled strip steel, the hot-rolled strip steel is fixedly clamped between the lower placing plates 8 and the upper placing plates 10, two semicircular barrels 13 are driven to be close to each other by the rotation of a double-shaft motor 18 to wrap a frame-shaped water pipe 3 and the hot-rolled strip steel, so that inconvenience is caused when people spray dephosphorization water to all places during dephosphorization of the hot-rolled strip steel, one end of an external water pipe is fixedly arranged at a water inlet of a high-pressure water pump 5, the other end of the external water pipe is placed in a water tank filled with dephosphorization water, the high-pressure water suction pump 5 is started to convey dephosphorization water into the frame-shaped water pipe 3, finally, the dephosphorization water is conveyed onto the hot-rolled strip steel through the high-pressure spray nozzle 9, the adhered phosphor skin on the hot-rolled strip steel is removed, the hot-rolled strip steel is driven to rotate by a certain angle through the slow rotation of the rotating motor 7, then the high-pressure dephosphorization water is enabled to comprehensively remove the hot-rolled strip steel, the rotating motor 7 is rotated to be large, the hot-rolled strip steel is enabled to rotate rapidly between the lower placing plate 8 and the upper placing plate 10, and then residual water adhered on the hot-rolled strip steel is thrown out through centrifugal force, the cleaning operation of the residual water on the hot-rolled strip steel is completed, and the hot-rolled strip steel can be enabled to rapidly enter the next industrial processing, and further the working efficiency is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a hot rolled strip's high-pressure water dephosphorization device, includes bottom plate, its characterized in that: the top of bottom plate fixed mounting has two linking poles, two the top fixed mounting of connecting rod has frame shape water pipe, fixed mounting has the connecting pipe on the bottom plate, fixed mounting has a plurality of high-pressure shower nozzle on the connecting pipe, the top and the frame shape water pipe fixed connection of connecting pipe, just the bottom of connecting pipe extends to the below of bottom plate, the below fixed mounting of bottom plate has high-pressure suction pump, just the delivery port of high-pressure suction pump with the bottom fixed connection of connecting pipe, rotate on the bottom plate and install the spliced pole, the bottom of spliced pole extends to the below of bottom plate, the bottom fixed mounting of bottom plate has the rotation motor, just the output shaft of rotation motor with the bottom fixed connection of spliced pole, the top fixed mounting of spliced pole has a plurality of lower place the board, the top of spliced pole is provided with the dwang, the bottom fixed mounting of dwang has a plurality of upper place the board, place respectively on two upper place the board screw thread installation on the board and rotate the screw rod, two the bottom of dwang respectively with the corresponding screw rod lower connection of placing down the board the screw rod is fixed respectively.
2. The high-pressure water dephosphorization device of hot rolled strip steel according to claim 1, wherein two vertical plates are fixedly arranged at the top of the bottom plate, a limiting rod is fixedly arranged on the outer wall of one side, which is close to each other, of the two vertical plates, a movable plate is slidably arranged on the limiting rod, semi-drums are fixedly arranged at the bottoms of the two movable plates respectively, a mounting plate is fixedly arranged on the limiting rod, a double-shaft motor is fixedly arranged at the bottom of the mounting plate, adjusting screws are fixedly arranged on two output shafts of the double-shaft motor respectively, and the two adjusting screws are respectively and rotatably connected with the two vertical plates.
3. The apparatus for removing phosphorus from hot rolled steel strip under high pressure water according to claim 1, wherein a protective cover is fixedly installed at the bottom of the bottom plate, and the rotating motor is located in the protective cover.
4. The high-pressure water dephosphorization device of hot rolled strip steel according to claim 3, wherein limiting blocks are fixedly arranged on the outer walls of one sides of the lower placing plates and the upper placing plates respectively.
5. The high-pressure water dephosphorization device of hot rolled strip steel according to claim 1, wherein four supporting legs are fixedly arranged at the bottom of the bottom plate, anti-skid sleeves are fixedly sleeved at the bottom ends of the four supporting legs respectively, and the four supporting legs are distributed in a rectangular array.
6. The high-pressure water dephosphorization device of hot rolled strip steel according to claim 2, wherein two through holes are respectively formed in the two moving plates, linear bearings are respectively and fixedly arranged in the two through holes, and the limiting rod penetrates through the two linear bearings and is in sliding connection with the inner walls of the two linear bearings.
7. The high-pressure water dephosphorization device of hot rolled strip steel according to claim 5, wherein two through holes are formed at the tops of the two corresponding lower placing plates, the bottom ends of the two rotating screws respectively extend into the two through holes and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected with the outer rings of the two bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321091988.8U CN219724121U (en) | 2023-05-09 | 2023-05-09 | High-pressure water dephosphorization device for hot rolled strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321091988.8U CN219724121U (en) | 2023-05-09 | 2023-05-09 | High-pressure water dephosphorization device for hot rolled strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219724121U true CN219724121U (en) | 2023-09-22 |
Family
ID=88060983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321091988.8U Active CN219724121U (en) | 2023-05-09 | 2023-05-09 | High-pressure water dephosphorization device for hot rolled strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219724121U (en) |
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2023
- 2023-05-09 CN CN202321091988.8U patent/CN219724121U/en active Active
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