CN220861698U - Selection structure combined with microbubble generator - Google Patents
Selection structure combined with microbubble generator Download PDFInfo
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- CN220861698U CN220861698U CN202322766291.2U CN202322766291U CN220861698U CN 220861698 U CN220861698 U CN 220861698U CN 202322766291 U CN202322766291 U CN 202322766291U CN 220861698 U CN220861698 U CN 220861698U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 230000000903 blocking effect Effects 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 57
- 239000012141 concentrate Substances 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims 3
- 239000002002 slurry Substances 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 description 21
- 239000011707 mineral Substances 0.000 description 21
- 239000012535 impurity Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- 238000000926 separation method Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model discloses a carefully chosen structure combined with a microbubble generator, which comprises the following components: the device comprises a sorting barrel, an electromagnetic coil, a material blocking device water inlet pipe, a material blocking device water outlet pipe, a water ring water inlet pipe, a water ring water outlet pipe, a water ring, a microbubble generator and a fixed pipe; the outer side of the sorting cylinder is provided with a plurality of electromagnetic coils, and the material blocking device is positioned in the sorting cylinder; the upper end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of material blocking device water outlet pipes, and the lower end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of water ring water outlet pipes; the material blocking device water inlet pipe and the material blocking device water outlet pipe are communicated with the material blocking device; the water ring is arranged on the outer side of the sorting cylinder and is positioned below the electromagnetic coil; the water ring water inlet pipe and the water ring water outlet pipe are communicated with the water ring; the microbubble generator is communicated with the inside of the sorting cylinder through a fixed pipe and is positioned at the bottom end of the sorting cylinder. On the premise of guaranteeing the concentrate grade, the screening effect is improved.
Description
Technical Field
The utility model relates to the technical field of mineral separation, in particular to a fine selection structure combined with a microbubble generator.
Background
At present, the super-pulse machine is equipment for separating mineral substances by utilizing electromagnetic force, gravity, rotational flow of water and buoyancy, has the advantages of high separation efficiency, high separation precision, large treatment capacity, stable operation and the like, and is widely applied to industries such as mines, concentrating mills and the like.
However, after the minerals are screened by electromagnetic force and water force, a part of impurities remain in the minerals, so that the grade of the concentrate is affected.
The patent publication number is: a permanent magnet and electromagnetism combined selection structure of CN210411125U is characterized in that a permanent magnet module is placed in a material blocking device and combined with an electromagnetic coil on the outer side of an inner cylinder of a device selection cylinder, concentrate screening is carried out by utilizing the dual functions of a magnetic field and gravity, more impurities are difficult to remove only through the screening mine with the functions of the electromagnetic force and the gravity, the screening effect is poor, and then the grade of the concentrate is influenced.
Therefore, how to reduce residual impurities in minerals and to improve the screening effect of the equipment is a problem to be solved by those skilled in the art.
Disclosure of utility model
In view of the above, the utility model provides a fine selection structure combined with a microbubble generator, which comprehensively utilizes electromagnetic force, rotational flow buoyancy of water, adhesion of bubbles, lifting and dispersing effects to screen impurities remained in minerals, and improves screening effect on the premise of ensuring concentrate grade.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A beneficiation structure in combination with a microbubble generator, comprising: the device comprises a sorting barrel, an electromagnetic coil, a material blocking device water inlet pipe, a material blocking device water outlet pipe, a water ring water inlet pipe, a water ring water outlet pipe, a water ring, a microbubble generator and a fixed pipe;
the outer side of the sorting cylinder is provided with a plurality of electromagnetic coils, and the material blocking device is positioned in the sorting cylinder;
The upper end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of material blocking device water outlet pipes, and the lower end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of water ring water outlet pipes; the material blocking device water inlet pipe and the material blocking device water outlet pipe are communicated with the material blocking device;
the water ring is arranged on the outer side of the sorting cylinder and is positioned below the electromagnetic coil; the water ring water inlet pipe and the water ring water outlet pipe are communicated with the water ring;
The microbubble generator is communicated with the inside of the sorting cylinder through a fixed pipe and is positioned at the bottom end of the sorting cylinder.
Preferably, the device also comprises an overflow device positioned at the top end of the sorting cylinder, and a tailing outlet is arranged on the side surface of the overflow device.
Preferably, the ore feeding device is arranged at the top end of the overflow device, and the ore pulp inlet is arranged at the top end of the ore feeding device.
Preferably, the ore feeding device further comprises a lower ore pipe connected with the bottom end of the ore feeder, the bottom end of the lower ore pipe is positioned in the sorting cylinder, and a plurality of lower ore pipe outlets are formed in the side wall of the bottom end of the lower ore pipe.
Preferably, the lower ore pipe is provided with an ultrasonic generator on the pipe wall of the inner part of the sorting barrel, and the ultrasonic generator is used for generating ultrasonic waves to break up aggregates in ore pulp so as to primarily separate impurities from mineral substances.
Preferably, the top end of the overflow device is provided with a liquid level sensor, and the liquid level sensor is used for detecting the height of the overflow liquid level, so as to detect the water consumption.
Preferably, the bottom of the sorting cylinder is provided with a lower cone, and the bottom of the lower cone is provided with a concentrate outlet.
Preferably, the side of the lower cone is provided with a concentration sensor for detecting concentrate concentration values.
Preferably, the outside of the selecting cylinder is provided with a protecting cylinder, the electromagnetic coil is positioned between the outside of the selecting cylinder and the inside of the protecting cylinder and is fixed at the outside of the selecting cylinder, the outer side wall of the protecting cylinder is provided with a junction box, and a junction terminal connected with the electromagnetic coil is arranged in the junction box.
Preferably, the side wall of the water outlet pipe of the material blocking device and the side wall of the water outlet pipe of the water ring are both provided with water outlets, and the water outlets are in the same direction and face the tangential direction of the circumference.
Compared with the prior art, the utility model discloses a fine selection structure combined with a microbubble generator, and the fine selection structure screens the impurities remained in the mineral substances by comprehensively utilizing electromagnetic force, rotational flow buoyancy of water, attachment, lifting and dispersing actions of bubbles, thereby greatly improving the screening effect and the screening efficiency, separating the impurities from the mineral substances as much as possible and further improving the grade of the screened concentrate; the ultrasonic generator is arranged near the ore pulp inlet to generate ultrasonic waves to break up agglomerates in the input ore pulp, so that impurities and mineral substances are primarily separated, and the screening efficiency of a fine selection structure is improved; the concentration sensor is arranged on the side surface of the lower cone at the bottom of the sorting barrel to detect the concentration value of concentrate, and the bottom valve switch is regulated according to the concentration value, so that concentrate can be timely and accurately output; the water outlet structure can make the water in the sorting cylinder generate a rotational flow effect, which is beneficial to mineral screening, and the agglomerate close to the water outlet can be broken up by high-pressure water.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a selection structure according to the present utility model.
FIG. 2 is a schematic cross-sectional view of a selected structure according to the present utility model.
Reference numerals: 1-sorting cylinder, 2-electromagnetic coil, 3-blocker, 4-blocker inlet pipe, 5-blocker outlet pipe, 6-water ring inlet pipe, 7-water ring outlet pipe, 8-water ring, 9-microbubble generator, 10-fixed pipe, 11-overflow device, 12-tailing outlet, 13-ore feeder, 14-ore pulp inlet, 15-ore discharging pipe, 16-ore discharging pipe outlet, 17-ultrasonic generator, 18-liquid level sensor, 19-lower cone, 20-ore concentrate outlet, 21-concentration sensor, 22-protection cylinder and 23-junction box.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, embodiments of the present utility model disclose a beneficiation structure in combination with a microbubble generator, comprising: the device comprises a sorting barrel 1, an electromagnetic coil 2, a material blocking device 3, a material blocking device water inlet pipe 4, a material blocking device water outlet pipe 5, a water ring water inlet pipe 6, a water ring water outlet pipe 7, a water ring 8, a microbubble generator 9 and a fixing device 10;
The outer side of the sorting barrel 1 is provided with a plurality of electromagnetic coils 2, and the inside of the sorting barrel 1 is provided with a material blocking device 3;
The material blocking device 3 is of a hollow cylinder structure, the upper end of the material blocking device 3 is connected with the inner cylinder wall of the sorting cylinder 1 through a plurality of material blocking device water outlet pipes 5, and the lower end of the material blocking device 3 is connected with the inner cylinder wall of the sorting cylinder 1 through a plurality of water ring water outlet pipes 7; the material blocking device water inlet pipe 4 and the material blocking device water outlet pipe 5 are communicated with the material blocking device;
The water ring 8 is arranged outside the sorting barrel 1 and is positioned below the electromagnetic coil 2; the water ring water inlet pipe 6 and the water ring water outlet pipe 7 are communicated with the water ring 8;
The microbubble generator 9 is communicated with the inside of the sorting cylinder 1 through a fixed pipe 19 and is positioned at the bottom end of the sorting cylinder 1.
Preferably, a plurality of electromagnetic coils 2 are arranged on the outer side of the sorting barrel 1 from top to bottom, and the electromagnetic coils 2 are fixed on the outer side of the sorting barrel 1 through coil clips.
Preferably, the water inlet pipe 4 of the material blocking device is provided with a first valve for adjusting the water discharge amount of the water outlet pipe 5 of the material blocking device; the water ring water inlet pipe 6 is provided with a second valve for adjusting the water discharge of the water ring water outlet pipe 7.
Preferably, the function of the material blocking device 3 is to disperse mineral substances to two sides of the sorting cylinder 1 so as to facilitate magnetic separation, and the material blocking device 3 is of a hollow structure with two closed ends; the material blocking device 3, the material blocking device water inlet pipe 4 and the material blocking device water outlet pipe 5 are communicated, and water entering from the material blocking device water inlet pipe 4 is discharged into the sorting barrel 1 through a water outlet of the material blocking device water outlet pipe 5 after passing through the material blocking device 3.
Preferably, the resistor water inlet pipe 4 is communicated with the resistor 3 through the water ring 8.
Preferably, the water ring 8 is a water circulation system of the sorting barrel 1, and is welded on the outer side of the sorting barrel 1, the water ring water outlet pipe 7 penetrates through the barrel wall of the sorting barrel 1 to be communicated with the water ring 8, and water entering from the water ring water inlet pipe 6 is discharged into the sorting barrel 1 through a water outlet of the water ring water outlet pipe 7 after passing through the water ring 8.
Preferably, the fixed pipe 19 is communicated with the inside of the sorting barrel 1 through the sorting barrel 1, and the fixed pipe 19 is sealed through welding through a through hole formed in the barrel wall of the sorting barrel 1.
Preferably, the microbubble generator 9 is a device capable of generating tiny bubbles, and the main principle is that oxygen molecules or gas molecules in the liquid are converted into bubbles by using high-pressure gas, and the microbubble generator 9 is connected with the fixed pipe through threads.
Preferably, the type of the microbubble generator used in this embodiment is: SK-Q-350-3.
Preferably, the device further comprises an overflow device 11 positioned at the top end of the sorting barrel 1, the overflow device 11 is fixedly connected with the sorting barrel 1 through bolts, a tailing outlet 12 is formed in the side face of the overflow device 11, and the screened mixture of minerals and impurities is collected into the overflow device 11 and is uniformly discharged from the tailing outlet 12.
Preferably, the device further comprises a feeder 13 positioned at the top end of the overflow device 11, the feeder 13 is overlapped with the overflow device 11, and the top end of the feeder 13 is provided with an ore pulp inlet 14.
Preferably, the ore dressing device further comprises a lower ore pipe 15 connected with the bottom end of the ore feeder 13, the lower ore pipe 15 is fixedly connected with the ore feeder 13 through bolts, the bottom end of the lower ore pipe 15 is positioned in the dressing cylinder 1, a plurality of lower ore pipe outlets 16 are formed in the side wall of the bottom end of the lower ore pipe 15, and ore pulp enters the dressing cylinder 1 from the lower ore pipe outlets 16 through the lower ore pipe 15.
Preferably, the lower ore pipe 15 is provided with an ultrasonic generator 17 on the pipe wall of the inner part of the sorting barrel 1, the ultrasonic generator 17 is fixedly connected with the lower ore pipe 15 through bolts, and the ultrasonic generator 17 breaks up aggregates in ore pulp by generating ultrasonic waves, so that impurities and mineral substances are primarily separated, and the screening efficiency of a sorting structure is improved.
Preferably, the top end of the overflow device 11 is provided with a liquid level sensor 18, the liquid level sensor 18 is used for detecting the overflow liquid level height, further detecting the water consumption, and adjusting the first valve and the second valve according to the water consumption, and the model adopted by the liquid level sensor in the embodiment is S18UBA.
Preferably, the bottom of the sorting barrel 1 is provided with a lower cone 19, the lower cone 19 is welded and fixed with the sorting barrel 11, the lower cone 19 is used for storing the concentrate deposited after screening, the bottom of the lower cone 19 is provided with a concentrate outlet 20, and the concentrate after screening is discharged from the concentrate outlet 20; a third valve is arranged above the concentrate outlet 20 for controlling whether concentrate is discharged or not.
Preferably, the side of the lower cone 19 is provided with a concentration sensor 21, the concentration sensor 21 is used for detecting a concentrate concentration value, and the third valve is adjusted to be opened or closed according to the concentration value, so that concentrate can be timely and accurately output, and the condition that the upper storage limit of the lower cone 19 is exceeded is avoided.
Preferably, the concentration sensor of the present embodiment adopts a model number BP801.
Preferably, a protection cylinder 22 is arranged on the outer side of the sorting cylinder 1, the electromagnetic coil 2 is positioned between the outer side of the sorting cylinder 1 and the inner side of the protection cylinder 22 and is fixed on the outer side of the sorting cylinder 1, a junction box 23 is arranged on the outer side wall of the protection cylinder 22, a plurality of junction terminals correspondingly connected with the electromagnetic coil 2 are arranged in the junction box 23, the electromagnetic coil 2 arranged from top to bottom is sequentially powered on and off through the junction box 23 so as to generate a circulating magnetic field, and concentrate is deposited on the lower cone 19 at the bottom of the sorting cylinder 1 through the circulating magnetic field generated by the electromagnetic coil 2 from top to bottom.
Preferably, the side wall of the water outlet pipe 5 of the material blocking device and the side wall of the water ring water outlet pipe 7 are both provided with water outlets, the water outlet directions are the same and face the tangential direction of the circumference, the water outlet pipe 5 of the material blocking device and the water ring water outlet pipe 7 are guaranteed to be capable of discharging water clockwise or anticlockwise, a rotational flow effect is further generated, and minerals are adsorbed onto the inner wall surface of the sorting cylinder 1 through the rotational flow effect and the electromagnetic force effect of the water.
Example 2
Another preferred embodiment of the present utility model discloses the principle of operation of a beneficiation structure incorporating a microbubble generator.
And opening a first valve on the material blocking device water inlet pipe 4 and a second valve on the water ring water inlet pipe 6, and discharging water flow into the sorting barrel 1 through two paths of the material blocking device 3, the material blocking device water outlet pipe 5 and the water ring water outlet pipe 7 respectively.
After the separation barrel 1 is filled with water, ore pulp enters a lower ore pipe 15 from an ore pulp inlet 14 of an ore feeder 13, an ultrasonic generator 17 arranged on the pipe wall of the lower ore pipe 15 is used for generating ultrasonic waves to break up aggregates in the ore pulp, impurities and mineral substances are primarily separated, then the ore pulp enters the separation barrel 1 through a lower ore pipe outlet 16 at the bottom of the lower ore pipe 5, the ore pulp enters the separation barrel 1 and then is dispersed to two sides in the separation barrel 1 through a material blocking device 3, the mineral substances are adsorbed to the inner wall surface of the separation barrel 1 under the swirling action of the water and the electromagnetic force, the electromagnetic coil 2 arranged from top to bottom is sequentially electrified and then subjected to a generated circulating magnetic field through a junction box 23, the ore concentrate is deposited to a lower cone 19 at the bottom of the separation barrel 1, and the switch of a third valve is regulated according to the concentration value of the ore concentrate detected by a concentration sensor 21, and the screened ore concentrate is discharged from an ore concentrate outlet 20.
The nonmagnetic and lighter substances rise to the overflow device 11 to be uniformly discharged from the tailing outlet 12 along with the action of upward water flow and the adsorption action of microbubbles generated by the microbubble generator 9; and meanwhile, the water consumption is detected according to the overflow liquid level height detected by the liquid level sensor 18, and the first valve and the second valve are switched and regulated according to the water consumption.
Compared with the prior art, the utility model discloses a fine selection structure combined with a microbubble generator, and the fine selection structure screens the impurities remained in the mineral substances by comprehensively utilizing electromagnetic force, rotational flow buoyancy of water, attachment, lifting and dispersing actions of bubbles, thereby greatly improving the screening effect and the screening efficiency, separating the impurities from the mineral substances as much as possible and further improving the grade of the screened concentrate; the ultrasonic generator is arranged near the ore pulp inlet to generate ultrasonic waves to break up agglomerates in the input ore pulp, so that impurities and mineral substances are primarily separated, and the screening efficiency of a fine selection structure is improved; the concentration sensor is arranged on the side surface of the lower cone at the bottom of the sorting barrel to detect the concentration value of concentrate, and the bottom valve switch is regulated according to the concentration value, so that concentrate can be timely and accurately output; the water outlet structure can make the water in the sorting cylinder generate a rotational flow effect, which is beneficial to mineral screening, and the agglomerate close to the water outlet can be broken up by high-pressure water.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A selection structure incorporating a microbubble generator, comprising: the device comprises a sorting barrel, an electromagnetic coil, a material blocking device water inlet pipe, a material blocking device water outlet pipe, a water ring water inlet pipe, a water ring water outlet pipe, a water ring, a microbubble generator and a fixed pipe;
the outer side of the sorting cylinder is provided with a plurality of electromagnetic coils, and the material blocking device is positioned in the sorting cylinder;
The upper end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of material blocking device water outlet pipes, and the lower end of the material blocking device is connected with the inner cylinder wall of the sorting cylinder through a plurality of water ring water outlet pipes; the material blocking device water inlet pipe and the material blocking device water outlet pipe are communicated with the material blocking device;
the water ring is arranged on the outer side of the sorting cylinder and is positioned below the electromagnetic coil; the water ring water inlet pipe and the water ring water outlet pipe are communicated with the water ring;
The microbubble generator is communicated with the inside of the sorting cylinder through a fixed pipe and is positioned at the bottom end of the sorting cylinder.
2. The structure of claim 1, further comprising an overflow device at the top of the classifying cylinder, wherein the overflow device is provided with a tailings outlet on the side.
3. The structure of claim 2, further comprising a feeder at the top of the overflow means, the feeder top having an inlet for slurry.
4. A beneficiation structure in combination with a microbubble generator as claimed in claim 3, further comprising a lower mine pipe connected to the bottom end of the feeder, the lower mine pipe bottom end being located inside the beneficiation cartridge, the lower mine pipe bottom end side wall being provided with a plurality of lower mine pipe outlets.
5. The structure according to claim 4, wherein the lower tube is provided with an ultrasonic generator on a wall of the inner portion of the classifying tube.
6. A selection structure in combination with a microbubble generator as claimed in claim 2, characterized in that the overflow means is provided with a level sensor at the top end.
7. The structure of claim 1, wherein the bottom of the classifying cylinder is provided with a lower cone, and the bottom of the lower cone is provided with a concentrate outlet.
8. The structure of claim 7, wherein the lower vertebral body is provided with a concentration sensor on the side of the lower vertebral body.
9. The structure according to claim 1, wherein a protective cylinder is provided on the outer side of the classifying cylinder, the electromagnetic coil is located between the outer side of the classifying cylinder and the inner side of the protective cylinder and is fixed on the outer side of the classifying cylinder, a junction box is provided on the outer side wall of the protective cylinder, and a junction terminal connected with the electromagnetic coil is provided in the junction box.
10. The structure of claim 1, wherein the side walls of the water outlet pipe of the material blocking device and the side walls of the water outlet pipe of the water ring are provided with water outlets, and the water outlets are oriented in the same direction towards the tangential direction of the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322766291.2U CN220861698U (en) | 2023-10-16 | 2023-10-16 | Selection structure combined with microbubble generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322766291.2U CN220861698U (en) | 2023-10-16 | 2023-10-16 | Selection structure combined with microbubble generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220861698U true CN220861698U (en) | 2024-04-30 |
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ID=90818280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322766291.2U Active CN220861698U (en) | 2023-10-16 | 2023-10-16 | Selection structure combined with microbubble generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220861698U (en) |
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2023
- 2023-10-16 CN CN202322766291.2U patent/CN220861698U/en active Active
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