CN221604346U - Corrosion-resistant seamless steel tube machining device - Google Patents
Corrosion-resistant seamless steel tube machining device Download PDFInfo
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- CN221604346U CN221604346U CN202323400852.3U CN202323400852U CN221604346U CN 221604346 U CN221604346 U CN 221604346U CN 202323400852 U CN202323400852 U CN 202323400852U CN 221604346 U CN221604346 U CN 221604346U
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- dust
- fixed
- sliding
- dust removal
- seamless steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 230000007797 corrosion Effects 0.000 title claims abstract description 21
- 238000005260 corrosion Methods 0.000 title claims abstract description 21
- 238000003754 machining Methods 0.000 title abstract description 8
- 239000000428 dust Substances 0.000 claims abstract description 153
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to the technical field of steel pipe machining, in particular to a corrosion-resistant seamless steel pipe machining device which comprises a workbench, wherein two sliding rails are fixedly arranged at the top end of the workbench, a motor is fixedly arranged on the side surface of one sliding rail, sliding grooves are formed in the two sliding rails, sliding blocks are connected in the two sliding grooves in a sliding manner, and a reciprocating screw rod is connected in the sliding grooves in a threaded manner. The beneficial effects of the utility model are as follows: the fan produces suction for the piece near the dust absorption pipe is inhaled, and the piece gets into the dust removal case, keeps off the piece through the filter screen down, and the motor drives dust absorption pipe reciprocating motion, makes the absorption scope of dust absorption pipe increase, can adsorb the piece of most regional on the workstation, thereby makes the device be convenient for carry out automatic clearance and collection to the piece on the workstation, is convenient for practice thrift the manpower, reduces the dust probability of spilling in the piece.
Description
Technical Field
The utility model relates to the technical field of steel pipe machining, in particular to a corrosion-resistant seamless steel pipe machining device.
Background
The corrosion-resistant steel pipe is a metal pipe with a corrosion-resistant material attached to the inner wall, and the steel pipe is usually clamped by driving a clamping block through an electric telescopic rod and the like during production, and the surface of the steel pipe is polished through a polishing tool, so that the cleanliness of the surface of the steel pipe is improved.
Patent specification with publication number CN215357342U discloses a processing device for corrosion-resistant stainless steel seamless steel pipe, comprising: processing a base; the whole processing base is rectangular plate-shaped structure, and the left and right ends on the processing base are rectangular array-shaped and provided with penetrating leak holes. When the piston rod is pulled, the sliding plate A and the sliding plate B can slide in opposite directions, and as the two clamping blocks are respectively connected to the four connecting rods and are aligned, the steel pipe can be clamped and fixed, and then the operation of the next station is performed; the clamping blocks are controlled by the air cylinders, so that steel pipes with different widths and thicknesses can be clamped and fixed, the utility model solves the problem that the clamping device for the steel pipes is relatively fixed singly, the clamping and positioning can only be carried out on steel pipes with the same thickness or model, and the problem that the steel pipes with different pipe diameters can not be simultaneously clamped can be solved.
However, in the related art, it was found that the above-mentioned processing equipment for a corrosion-resistant stainless steel seamless steel pipe has the following problems: the device scrapes the piece that steel pipe processing produced into the leak through the manual work removal scraper blade in, and the piece falls behind and needs to collect again, comparatively extravagant manpower, and the piece falls behind entering the leak for powder in the piece lifts up, leads to the lung of operating personnel impaired easily, in view of this, provides a corrosion resistance seamless steel pipe processingequipment in order to overcome above-mentioned defect.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a corrosion-resistant seamless steel tube processing device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a seamless steel pipe processingequipment of corrosion resistance, includes the workstation, the top of workstation is fixed to be equipped with two slide rails, and the fixed motor that is equipped with in side of one of them slide rail, two the spout has all been seted up to the inside of slide rail, two the equal sliding connection in inside of spout has the slider, and the inside threaded connection of one of them slider has reciprocating screw rod, another the inside sliding connection of slider has the slide bar, two the fixed fly leaf that is equipped with in one side of slider, two the top of fly leaf is equipped with fixed frame, the bottom of fixed frame respectively with the bottom fixed connection of two fly leaves, the fixed internally fixed of fixed frame is equipped with hollow fixing base, the bottom fixed of fixing base is equipped with a plurality of dust absorption pipes, the fixed ventilation pipe that is equipped with in top, the bottom fixing of ventilation pipe is equipped with the dust removal case, one side of dust removal case is equipped with the fan.
As a further description of the above technical solution: the transmission shaft of motor and the one end fixed connection of reciprocating screw, the one end of reciprocating screw rotates with the inside of one of them slide rail to be connected, the inside fixed connection of slide bar and another slide rail, reciprocating screw is convenient for drive slider reciprocating motion.
As a further description of the above technical solution: the movable grooves are formed in one sides of the sliding rails, the two movable grooves are respectively connected with the side faces of the two movable plates in a sliding mode, the workbench is fixedly connected with the side faces of the ventilating pipes, an air inlet pipe is fixedly arranged on the side faces of the dust removing box, one end of the air inlet pipe is fixedly connected with an air inlet of the fan, an air outlet pipe is fixedly arranged at an air outlet of the fan, and the dust removing box is convenient for storing chips and dust.
As a further description of the above technical solution: two fixing plates are fixedly arranged at the top end of the workbench, electric telescopic rods are fixedly arranged in the two fixing plates, clamping blocks are fixedly arranged at the telescopic ends of the two electric telescopic rods, a bottom plate is fixedly arranged at the bottom end of the workbench, the top of bottom plate and the bottom fixed connection of dust removal case, the top of bottom plate and the bottom fixed connection of fan, electric telescopic handle is convenient for drive the clamp splice and removes to adjustable clamp splice's interval makes can fix not unidimensional steel pipe.
As a further description of the above technical solution: the inside of dust removal case is fixed and is equipped with the installing frame, the inside of installing frame is fixed and is equipped with the filter screen, and the filter screen is convenient for filter piece and dust.
As a further description of the above technical solution: an inlet and outlet groove is formed in one side of the dust removal box, a dust collection box is connected to the inside of the inlet and outlet groove in a sliding mode, and the dust collection box is convenient for collecting filtered chips and dust.
As a further description of the above technical solution: the dust removal box comprises a dust removal box body, and is characterized in that a first dust prevention groove is formed in one side of the dust removal box body, a first dust prevention plate is connected to the inside of the first dust prevention groove in a sliding mode, a second dust prevention groove is formed in one side of the installation frame, the inside of the second dust prevention groove is connected with the side face of the first dust prevention plate in a sliding mode, two first supporting feet are arranged at the bottom end of the first dust prevention plate in a fixed mode, the first dust prevention plate is convenient to seal the dust removal box body, and therefore chips and dust in the dust removal box body cannot leave the dust removal box body.
As a further description of the above technical solution: the dust box is characterized in that a third dust-proof groove is formed in one side of the dust box, a second dust-proof plate is connected to the inside of the third dust-proof groove in a sliding mode, two second supporting feet are arranged at the bottom end of the second dust-proof plate in a fixed mode, the second dust-proof plate is convenient to seal the dust box, and therefore chips and dust in the dust box cannot overflow.
The utility model has the following beneficial effects:
According to the corrosion-resistant seamless steel pipe machining device, through design and matching, the fan generates suction force, so that scraps near the dust suction pipe are sucked, the scraps enter the dust removal box, the scraps are blocked by the filter screen, the motor drives the dust suction pipe to reciprocate, so that the suction range of the dust suction pipe is increased, and scraps in most areas on the workbench can be sucked, therefore, the device is convenient for automatically cleaning and collecting the scraps on the workbench, labor is saved, and the dust overflow probability in the scraps is reduced;
According to the corrosion-resistant seamless steel pipe machining device, through design matching, when the dust box is taken out, the first dust-proof plate is pushed into the dust box, so that scraps and dust in the dust box cannot leave the dust box, the second dust-proof plate is pushed into the dust box, so that dust in the dust box cannot spill when the dust box is moved, at the moment, the dust box is taken out through the handle on the dust box, a new dust box is replaced, after the dust box is placed in the dust box, the first dust-proof plate and the second dust-proof plate are pulled out, and at the moment, scraps and dust in the dust box can enter the dust box again, so that the dust in scraps cannot spill when the dust box is replaced, and the cleaning efficiency of the scraps is prevented from being reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the installation structure of the dust suction pipe of the present utility model;
FIG. 3 is a schematic view of the structure of FIG. 2A according to the present utility model;
FIG. 4 is a schematic view of the internal structure of the sliding rail of the present utility model;
FIG. 5 is a schematic view showing an internal structure of the dust removing box of the present utility model;
fig. 6 is a schematic view of a mounting structure of a second dust-proof plate according to the present utility model.
Legend description:
1. A work table; 2. a slide rail; 3. a motor; 4. a slide block; 5. a reciprocating screw rod; 6. a slide bar; 7. a movable plate; 8. a fixed frame; 9. a fixing seat; 10. a dust collection pipe; 11. a ventilation pipe; 12. a dust removal box; 13. a blower; 14. an air inlet pipe; 15. an air outlet pipe; 16. a fixing plate; 17. an electric telescopic rod; 18. clamping blocks; 19. a mounting frame; 20. a filter screen; 21. a dust collection box; 22. a first dust-proof plate; 23. a first support leg; 24. a second dust-proof plate; 25. a second support leg; 26. a bottom plate.
Detailed Description
Referring to fig. 1 to 6, the utility model provides a corrosion-resistant seamless steel tube processing device: including workstation 1, the fixed two slide rails 2 that are equipped with in top of workstation 1, slide rail 2 is convenient for carry out spacingly to reciprocating lead screw 5, dustproof piece falls simultaneously on reciprocating lead screw 5, and the fixed motor 3 that is equipped with in side of one of them slide rail 2, motor 3 is convenient for drive reciprocating lead screw 5 and rotate, the spout has all been seted up to the inside of two slide rails 2, the inside all sliding connection of two spouts has slider 4, and the inside threaded connection of one of them slider 4 has reciprocating lead screw 5, reciprocating lead screw 5 is convenient for drive slider 4 reciprocating motion, the inside sliding connection of another slider 4 has slide bar 6, slide bar 6 is convenient for improve the stability when slider 4 removes, the one side of two sliders 4 is all fixed and is equipped with fly leaf 7, fly leaf 7 is convenient for support fixed frame 8, the top of two fly leaf 7 is equipped with fixed frame 8, the bottom fixed connection of fixed frame 8 respectively with two fly leaf 7, the inside fixed hollow fixing base 9 that is equipped with of fixed frame 8, the bottom fixed of fixing base 9 is equipped with a plurality of ventilation pipes 10, the top fixed 11 that is equipped with of fixing base 9, the bottom fixed of 11 is equipped with dust removal case 12, one side of dust removal case 12 is equipped with fan 13.
As a further embodiment of the above technical solution: the transmission shaft of the motor 3 is fixedly connected with one end of the reciprocating screw rod 5, one end of the reciprocating screw rod 5 is rotationally connected with the inside of one of the sliding rails 2, the sliding rod 6 is fixedly connected with the inside of the other sliding rail 2, and the reciprocating screw rod 5 is convenient for driving the sliding block 4 to reciprocate.
As a further embodiment of the above technical solution: the movable grooves are formed in one side of each of the two sliding rails 2, the inside of each of the two movable grooves is respectively connected with the side faces of the two movable plates 7 in a sliding mode, the inside of the workbench 1 is fixedly connected with the side face of the ventilating pipe 11, the side face of the dust removal box 12 is fixedly provided with an air inlet pipe 14, one end of the air inlet pipe 14 is fixedly connected with an air inlet of the fan 13, an air outlet pipe 15 is fixedly arranged at an air outlet of the fan 13, and the dust removal box 12 is convenient for storing chips and dust.
As a further embodiment of the above technical solution: the top of workstation 1 is fixed and is equipped with two fixed plates 16, and the inside of two fixed plates 16 is all fixed and is equipped with electric telescopic handle 17, and the flexible end of two electric telescopic handle 17 is all fixed and is equipped with clamp splice 18, and the bottom mounting of workstation 1 is equipped with bottom plate 26, the bottom fixed connection of bottom plate 26 and dust removal case 12, the bottom fixed connection of bottom plate 26's top and fan 13, electric telescopic handle 17 are convenient for drive clamp splice 18 and remove to adjustable clamp splice 18's interval makes can fix not unidimensional steel pipe.
The specific implementation method comprises the following steps: the two electric telescopic rods 17 are stretched to drive the two clamping blocks 18 to be close to each other, thereby limiting the steel pipe, the steel pipe can be polished at the moment, when the chips produced by polishing fall onto the workbench 1, the fan 13 is started, the fan 13 generates suction force, chips nearby the dust collection pipe 10 are sucked in, the chips enter the fixing seat 9 through the dust collection pipe 10, then enter the ventilation pipe 11 through the fixing seat 9, the chips in the ventilation pipe 11 enter the dust removal box 12, the chips are blocked by the filter screen 20, the filtered air enters the air inlet pipe 14 through the dust removal box 12, the rear air is sucked in by the fan 13, the fan 13 discharges the air through the air outlet pipe 15, the motor 3 is started, the transmission shaft of the motor 3 drives the reciprocating screw rod 5 to drive the sliding block 4 to reciprocate, the movable plate 7 is driven to drive the fixed frame 8 to reciprocate, the fixing seat 9 is driven to reciprocate, the dust collection pipe 10 is driven to reciprocate, the ventilation pipe 11 is a hose, the movement of the fixing seat 9 is not influenced, the reciprocating movement of the dust collection pipe 10 is enabled to be increased, the adsorption range of the dust collection pipe 10 is enabled to be increased, the chips on a large area on the workbench 1 can be automatically adsorbed by the dust collection device, the dust collection device is convenient to be convenient to collect the chips, and the dust can be easily overflowed, and the dust can be conveniently cleaned from the workbench.
As a further embodiment of the above technical solution: the inside of the dust removal box 12 is fixedly provided with a mounting frame 19, the inside of the mounting frame 19 is fixedly provided with a filter screen 20, and the filter screen 20 is convenient for filtering scraps and dust.
As a further embodiment of the above technical solution: one side of the dust removal box 12 is provided with an inlet and outlet groove, the inside of the inlet and outlet groove is connected with a dust collection box 21 in a sliding manner, and the dust collection box 21 is convenient for collecting filtered chips and dust.
As a further embodiment of the above technical solution: first dust groove has been seted up to one side of dust bin 12, and first dust guard 22 has been seted up to the inside sliding connection in first dust groove, and the second dust guard has been seted up to one side of installing frame 19, and the inside in second dust guard 22 is sliding connection with the side in first dust guard 22, and the bottom mounting in first dust guard 22 is equipped with two first supporting legs 23, and first dust guard 22 is convenient for seal dust bin 12 for the piece in the dust bin 12 can't leave dust bin 12 with the dust.
As a further embodiment of the above technical solution: a third dustproof slot is formed in one side of the dust collecting box 21, a second dustproof plate 24 is connected to the inside of the third dustproof slot in a sliding mode, two second supporting feet 25 are arranged at the bottom end of the second dustproof plate 24 in a fixed mode, the second dustproof plate 24 is convenient to seal the dust collecting box 21, and therefore chips and dust in the dust collecting box 21 cannot overflow.
The specific implementation method comprises the following steps: when the bits pile up more in the dust-collecting box 21, if directly take out the dust-collecting box 21, the dust in the bits is easy to spill, reduce the cleaning effect, when taking out the dust-collecting box 21, push first dust guard 22 into dust bin 12, make second dust guard 24 block up the cavity between dust bin 12 and the mounting frame 19, make the piece in the dust bin 12 and dust can't leave dust bin 12, push into the dust-collecting box 21 with second dust guard 24, make the dust in the dust-collecting box 21 can not spill when removing the dust-collecting box 21, take out the dust-collecting box 21 through the handle on the dust-collecting box 21 this moment, change new dust-collecting box 21, put into the dust bin 12 after with first dust guard 22 and second dust guard 24 pull out, the export of first dust guard 22 with first dust guard is blocked up, avoid the dust to leave dust bin 12 through first dust guard, second dust guard 24 is with the export of third groove to live, avoid leaving dust bin 12 through the third dust guard 24, make the dust guard 21 carry out the dust guard 21 through the handle on the dust guard 21, the dust guard is convenient for carrying out the dust guard 21 in the dust-collecting box is broken, thereby prevent the dust-collecting box 21 from being broken in the dust-collecting box is broken when the dust-collecting box is not carried out to the dust-collecting box 21, the dust-collecting device is convenient to carry out in the dust-collecting device is avoided to be broken to the dust-collecting box 25, and dust-collecting device is easy to be broken.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The utility model provides a corrosion resistance seamless steel pipe processingequipment, includes workstation (1), its characterized in that: the utility model discloses a dust removal device for the dust removal of the dust collection device, including workstation (1), fixed slide rail (2) that is equipped with in top of workstation (1), and the fixed motor (3) that is equipped with in side of one of them slide rail (2), two the spout has all been seted up to the inside of slide rail (2), two the equal sliding connection in inside of spout has slider (4), and the inside threaded connection of one of them slider (4) has reciprocating lead screw (5), another the inside sliding connection of slider (4) has slide bar (6), two the fixed fly leaf (7) that are equipped with in one side of slider (4), two the top of fly leaf (7) is equipped with fixed frame (8), the bottom fixed connection of fixed frame (8) respectively with two fly leaf (7), the fixed fixing base (9) that is equipped with hollow, the bottom fixed a plurality of dust absorption pipes (10) that are equipped with of fixing base (9), the fixed ventilation pipe (11) that is equipped with in top of fixing base (9), the bottom of ventilation pipe (11) is fixed dust removal case (12), one side of dust removal case (12) is equipped with fan (13).
2. A corrosion resistant seamless steel tube processing apparatus according to claim 1, wherein: the transmission shaft of the motor (3) is fixedly connected with one end of the reciprocating screw rod (5), one end of the reciprocating screw rod (5) is rotationally connected with the inside of one of the sliding rails (2), and the sliding rod (6) is fixedly connected with the inside of the other sliding rail (2).
3. A corrosion resistant seamless steel tube processing apparatus according to claim 1, wherein: the two movable grooves are formed in one side of the sliding rail (2), the two movable grooves are respectively connected with the side faces of the two movable plates (7) in a sliding mode, the workbench (1) is fixedly connected with the side faces of the ventilating pipe (11), an air inlet pipe (14) is fixedly arranged on the side face of the dust removal box (12), one end of the air inlet pipe (14) is fixedly connected with an air inlet of the fan (13), and an air outlet pipe (15) is fixedly arranged at an air outlet of the fan (13).
4. A corrosion resistant seamless steel tube processing apparatus according to claim 1, wherein: the utility model discloses a dust removal device for the dust removal of the dust collection device, including workstation (1), fixed board (16) that is equipped with in top of workstation (1), two the inside of fixed board (16) is all fixed and is equipped with electric telescopic handle (17), two the flexible end of electric telescopic handle (17) is all fixed and is equipped with clamp splice (18), the bottom mounting of workstation (1) is equipped with bottom plate (26), the bottom fixed connection of bottom plate (26) top and dust removal case (12), the bottom fixed connection of bottom plate (26) top and fan (13).
5. A corrosion resistant seamless steel tube processing apparatus according to claim 1, wherein: the dust removal box is characterized in that an installation frame (19) is fixedly arranged in the dust removal box (12), and a filter screen (20) is fixedly arranged in the installation frame (19).
6. A corrosion resistant seamless steel tube processing apparatus according to claim 5, wherein: an inlet and outlet groove is formed in one side of the dust removal box (12), and a dust collection box (21) is connected inside the inlet and outlet groove in a sliding mode.
7. A corrosion resistant seamless steel tube processing apparatus according to claim 6, wherein: first dust-proof groove has been seted up to one side of dust bin (12), the inside sliding connection in first dust-proof groove has first dust guard (22), the second dust-proof groove has been seted up to one side of installing frame (19), the inside in second dust-proof groove and the side sliding connection of first dust guard (22), the bottom mounting in first dust guard (22) is equipped with two first supporting legs (23).
8. A corrosion resistant seamless steel tube processing apparatus according to claim 7, wherein: a third dustproof groove is formed in one side of the dust collecting box (21), a second dustproof plate (24) is connected to the inside of the third dustproof groove in a sliding mode, and two second supporting feet (25) are arranged at the bottom end of the second dustproof plate (24) in a fixed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323400852.3U CN221604346U (en) | 2023-12-13 | 2023-12-13 | Corrosion-resistant seamless steel tube machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323400852.3U CN221604346U (en) | 2023-12-13 | 2023-12-13 | Corrosion-resistant seamless steel tube machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221604346U true CN221604346U (en) | 2024-08-27 |
Family
ID=92430799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323400852.3U Active CN221604346U (en) | 2023-12-13 | 2023-12-13 | Corrosion-resistant seamless steel tube machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221604346U (en) |
-
2023
- 2023-12-13 CN CN202323400852.3U patent/CN221604346U/en active Active
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