CN221131417U - Cloth bag dust remover for waste gas treatment - Google Patents
Cloth bag dust remover for waste gas treatment Download PDFInfo
- Publication number
- CN221131417U CN221131417U CN202323211848.2U CN202323211848U CN221131417U CN 221131417 U CN221131417 U CN 221131417U CN 202323211848 U CN202323211848 U CN 202323211848U CN 221131417 U CN221131417 U CN 221131417U
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- China
- Prior art keywords
- dust removal
- bag
- dust
- fixedly connected
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 title claims abstract description 155
- 239000004744 fabric Substances 0.000 title abstract description 18
- 239000002912 waste gas Substances 0.000 title abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims 1
- 230000000670 limiting effect Effects 0.000 abstract description 22
- 230000009471 action Effects 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000005457 optimization Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model belongs to the technical field of dust removal equipment, and discloses a cloth bag dust remover for waste gas treatment, which comprises a mounting frame, wherein a dust removal box is fixedly sleeved at the top of the mounting frame, and the inside of the dust removal box is movably connected with a dust removal bag whole. According to the utility model, the pushing plate, the driving motor, the rotating shaft, the elliptic block and the limiting block are arranged, an operator starts the driving motor to enable the rotating shaft to drive the elliptic block to rotate, the elliptic block rotates to press the outer surface of the pushing plate, the pushing plate drives the dust removing bag to integrally move upwards under the limiting action of the limiting block and the limiting groove, the compression spring is compressed at the moment, when the elliptic block leaves the outer surface of the pushing plate, the dust removing bag integrally moves downwards rapidly under the action of gravity and elastic recovery of the compression spring, so that dust on the outer surface of the dust removing bag integrally shakes down to the inner part of the collecting box, and the service life of the cloth bag in the dust removing bag integrally is prolonged.
Description
Technical Field
The utility model belongs to the technical field of dust removal equipment, and particularly relates to a bag-type dust remover for waste gas treatment.
Background
The exhaust gas is a toxic and harmful gas exhausted from the process of production and life of human beings, particularly chemical plants, steel plants, pharmaceutical plants, coking plants, oil refineries and the like, seriously pollutes the environment and affects the health of human bodies, and in order to avoid the phenomenon, the exhaust gas is purified before being discharged, wherein a dust remover is used, and the dust remover or dust removing equipment is equipment for separating dust from the flue gas, wherein the dust remover is divided into a particle layer dust remover, a bag type dust remover and an electric dust remover according to the separation principle, and the bag type dust remover is most widely used.
When the dry dust is purified by operators, the operators often need to use a cloth bag dust remover, the cloth bag dust remover is a dust removing device for capturing solid particles in dust-containing gas by utilizing cloth bags made of fiber fabric, and as the dust is gathered on the outer surface of the cloth bags, the space through which waste gas can pass gradually decreases, so that the dust removing effect of the dust remover is poor, the operators need to replace the dust remover frequently, the working efficiency of the dust remover is greatly influenced, and the dust remover is improved.
Disclosure of utility model
The utility model aims at solving the problems, and provides a cloth bag dust remover for waste gas treatment, which has the advantage of cleaning cloth bag dust.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sack cleaner for exhaust-gas treatment, includes the mounting bracket, the fixed dust removal case that has cup jointed in top of mounting bracket, the inside swing joint of dust removal case has the dust removal bag wholly, the top fixedly connected with connecting rod of the whole internal surface of dust removal bag, the other end of connecting rod runs through the whole inside of dust removal bag and extends to the holistic below of dust removal bag and fixedly connected with push plate, the right side fixedly connected with driving motor of dust removal case, the other end fixedly connected with pivot of driving motor output shaft, the other end of pivot runs through the dust removal case and extends to the left side of dust removal case and fixedly cup joint the oval piece that is located push plate under, the top activity of connecting rod has cup jointed the gag lever post, the top of gag lever post and the top fixedly connected with of dust removal case internal surface, the spacing groove that is located the whole both sides of dust removal bag has all been seted up to the both sides of dust removal bag, the back fixedly connected with fixed plate of dust removal case inner chamber, the bottom fixedly connected with compression spring of fixed plate, compression spring's the other end and the whole fixedly connected with of dust removal bag.
As the preferable mode of the utility model, the top of the left side of the dust removal box is fixedly provided with a fan, the left side of the fan is fixedly connected with an air outlet pipe, the right side of the fan is fixedly connected with an air suction pipe, and the other end of the air suction pipe penetrates through the left side of the dust removal box and extends into the dust removal box.
As the preferable mode of the utility model, the right side of the dust removing box is fixedly sleeved with the air inlet, the bottom of the dust removing box is movably connected with the collecting box, two sides of the top of the collecting box are fixedly connected with sealing strips positioned in the dust removing box, and the outer surfaces of the sealing strips are movably connected with the inside of the dust removing box.
As the preferable right side of the dust removal box is fixedly connected with a circular shaft, the outer surface of the circular shaft is movably sleeved with a rotating block, the right side of the rotating block is movably sleeved with a fixing rod, and the other end of the fixing rod penetrates through the rotating block and extends to the inside of the collection box.
As the preferable mode of the utility model, the right side of the fixed rod is fixedly connected with the pull block, the right side of the outer surface of the fixed rod is movably sleeved with the extension spring, the left side of the extension spring is fixedly connected with the right side of the rotating block, and the right side of the extension spring is fixedly connected with the left side of the pull block.
As the preferable mode of the utility model, the bottom of the left side of the dust removing box is fixedly connected with a positioning block, and the right side of the positioning block is movably connected with the left side of the collecting box.
Preferably, the right side of the collecting box is fixedly connected with a handle positioned below the fixed rod, and the outer surface of the handle is rough.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, the pushing plate, the driving motor, the rotating shaft, the elliptical blocks and the limiting blocks are arranged, an operator starts the driving motor to enable the rotating shaft to drive the elliptical blocks to rotate, the elliptical blocks rotate to press the outer surfaces of the pushing plate, the pushing plate drives the dust removing bag to integrally move upwards under the limiting action of the limiting blocks and the limiting grooves, the compression springs are compressed at the moment, when the elliptical blocks leave the outer surfaces of the pushing plate, the dust removing bag integrally moves downwards rapidly under the action of gravity and elastic recovery of the compression springs, so that dust on the outer surfaces of the dust removing bag integrally shakes down to the inside of the collecting box, the service life of the cloth bag in the dust removing bag integrally is prolonged, the frequency of replacing the cloth bag by the operator is reduced, and the cost is saved.
2. According to the dust collection device, the rotating block, the fixed rod, the pulling block, the stretching spring and the handle are arranged, an operator pulls the pulling block rightwards, so that the fixed rod is separated from the inside of the collection box, the fixation of the rotating block is relieved, the stretching spring is stretched, then the operator rotates the rotating block, the rotating block is separated from the outer surface of the collection box, the fixation of the collection box is relieved, then the operator pulls the handle, the collection box moves rightwards under the limiting effect of the sealing strip, the collection box is separated from the inside of the dust collection box, finally the operator cleans dust in the collection box, the device can collect and process the dust falling in the dust collection box, the cleaning is convenient, the overall cleanliness of the inside of the dust collection box is improved, and the cleaning efficiency of a cloth bag is prevented from being influenced due to excessive dust accumulation in the dust collection box.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic cross-sectional view of a spindle according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a stop lever of the present utility model;
FIG. 5 is a schematic view of a partial enlarged structure at A in FIG. 3;
fig. 6 is a partially enlarged schematic structural view of fig. 4 at B.
In the figure: 1. a mounting frame; 2. a dust removal box; 3. the dust removing bag is integral; 4. a connecting rod; 5. a pushing plate; 6. a driving motor; 7. a rotating shaft; 8. an elliptic block; 9. a limit rod; 10. a limit groove; 11. a limiting block; 12. a blower; 13. an air outlet pipe; 14. an air suction pipe; 15. an air inlet; 16. a collection box; 17. a sealing strip; 18. a circular shaft; 19. a rotating block; 20. a fixed rod; 21. pulling blocks; 22. a tension spring; 23. a positioning block; 24. a handle; 25. a fixing plate; 26. compressing the spring.
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 to 6, the utility model provides a bag-type dust remover for waste gas treatment, which comprises a mounting frame 1, wherein the top of the mounting frame 1 is fixedly sleeved with a dust removing box 2, the inside of the dust removing box 2 is movably sleeved with a dust removing bag whole 3, the top of the inner surface of the dust removing bag whole 3 is fixedly connected with a connecting rod 4, the other end of the connecting rod 4 penetrates through the inside of the dust removing bag whole 3 and extends to the lower part of the dust removing bag whole 3 and is fixedly connected with a pushing plate 5, the right side of the dust removing box 2 is fixedly provided with a driving motor 6, the other end of an output shaft of the driving motor 6 is fixedly connected with a rotating shaft 7, the other end of the rotating shaft 7 penetrates through the dust removing box 2 and extends to the left side of the dust removing box 2 and is fixedly sleeved with an oval block 8 positioned under the pushing plate 5, the top of the connecting rod 4 is movably sleeved with a limiting rod 9, the top of the limiting rod 9 is fixedly connected with the top of the inner surface of the dust removing box 2, two sides of the dust removing box 2 are respectively provided with limiting grooves 10 positioned at two sides of the dust removing bag whole 3, two sides of the dust removing bag whole 3 are fixedly connected with limiting blocks 11 positioned at the inner sides of the limiting grooves 10, the inner sides of the limiting grooves 25 are fixedly connected with the inner sides of the limiting plates 25, the dust removing box 2 inner cavity is fixedly connected with a fixing plate 25, the bottom of the dust removing box 2 is fixedly connected with a compressing spring 26, and the other end is fixedly connected with the whole 3, and compression spring 26 is fixedly connected with the whole 3.
Operating personnel starts driving motor 6 for pivot 7 drives oval piece 8 and takes place to rotate, oval piece 8's rotation promotes connecting rod 4, push plate 5 and the whole 3 upward movement of dust removal bag under the spacing effect of gag lever post 9, compression spring 26 is compressed this moment, when oval piece 8 leaves the surface of push plate 5, the whole 3 whole of dust removal bag can be under the elasticity recovery effect of gravity effect and compression spring 26, rapid downward movement, so reciprocally, shake the dust of the whole 3 surface of dust removal bag off, the clearance to the whole 3 surface dust of dust removal bag is accomplished, the life of the whole 3 surface socket cloth bag of dust removal bag has been prolonged.
Referring to fig. 4, a blower 12 is fixedly installed at the top of the left side of the dust box 2, an air outlet pipe 13 is fixedly connected to the left side of the blower 12, an air suction pipe 14 is fixedly connected to the right side of the blower 12, and the other end of the air suction pipe 14 penetrates the left side of the dust box 2 and extends into the dust box 2.
As a technical optimization scheme of the utility model, an operator starts the fan 12, extracts the filtered gas in the dust removal box 2 through the air suction pipe 14, and finally discharges the filtered gas to the outside through the air outlet pipe 13.
Referring to fig. 4 and 5, an air inlet 15 is fixedly sleeved on the right side of the dust removal box 2, a collecting box 16 is movably connected to the bottom of the dust removal box 2, sealing strips 17 positioned in the dust removal box 2 are fixedly connected to two sides of the top of the collecting box 16, and the outer surfaces of the sealing strips 17 are movably connected with the inside of the dust removal box 2.
As a technical optimization scheme of the utility model, due to the arrangement of the air inlet 15, the air to be purified can be guided into the dust collection box 2 through the cavity of the air inlet 15.
Referring to fig. 5, a circular shaft 18 is fixedly connected to the right side of the dust removal box 2, a rotating block 19 is movably sleeved on the outer surface of the circular shaft 18, a fixing rod 20 is movably sleeved on the right side of the rotating block 19, and the other end of the fixing rod 20 penetrates through the rotating block 19 and extends to the inside of the collection box 16.
As a technical optimization scheme of the utility model, the collecting box 16 can be well fixed at the bottom of the dust removing box 2 and kept in a closed connection state with the bottom of the dust removing box 2 due to the arrangement of the fixing rod 20 and the sealing strip 17.
Referring to fig. 5, a pull block 21 is fixedly connected to the right side of the fixing rod 20, a tension spring 22 is movably sleeved on the right side of the outer surface of the fixing rod 20, the left side of the tension spring 22 is fixedly connected with the right side of the rotating block 19, and the right side of the tension spring 22 is fixedly connected with the left side of the pull block 21.
As a technical optimization scheme of the utility model, an operator pulls the pull block 21 rightwards to enable the fixing rod 20 to be separated from the inside of the collecting box 16, the fixation of the rotating block 19 is released, the extension spring 22 is stretched at the moment, then the operator rotates the rotating block 19 by taking the round shaft 18 as the circle center, the outer surface of the rotating block 19 is separated from the outer surface of the collecting box 16, the fixation effect on the collecting box 16 is released, then the collecting box 16 is pulled to enable the collecting box 16 to move rightwards under the limiting effect of the sealing strip 17, and the collecting box 16 can be detached from the bottom of the dust collecting box 2, so that the operator can conveniently process dust in the collecting box.
Referring to fig. 2, a positioning block 23 is fixedly connected to the bottom of the left side of the dust removing box 2, and the right side of the positioning block 23 is movably connected with the left side of the collecting box 16.
As a technical optimization scheme of the utility model, the positioning block 23 can have a good positioning effect on the whole collection box 16 during insertion.
Referring to fig. 1 and 3, a handle 24 is fixedly connected to the right side of the collecting box 16 below the fixing lever 20, and an outer surface of the handle 24 is roughened.
As a technical optimization scheme of the utility model, due to the arrangement of the handle 24, an operator can conveniently pull the collecting box 16 to be separated from the interior of the dust removing box 2.
The working principle and the using flow of the utility model are as follows:
Firstly, the operating personnel starts the fan 12, exhaust gas inside the dust removal box 2 is extracted after being subjected to cloth bag purification treatment sleeved on the outer surface of the whole dust removal bag 3 through the air suction pipe 14, and then the exhaust gas is discharged to the outside through the air outlet pipe 13, after the exhaust gas purification treatment inside the dust removal box 2 is finished, the operating personnel starts the driving motor 6 to enable the rotating shaft 7 to drive the elliptical block 8 to rotate, the rotation of the elliptical block 8 upwards extrudes the outer surface of the pushing plate 5, the pushing plate 5 drives the whole dust removal bag 3 to upwards move under the limiting effect of the limiting block 11 and the limiting groove 10, the compression spring 26 is compressed at the moment, when the elliptical block 8 leaves the outer surface of the pushing plate 5, the whole dust removal bag 3 rapidly downwards moves under the elastic recovery effect of gravity and the compression spring 26, dust on the outer surface of the whole dust removal bag 3 is vibrated to the inside the collecting box 16 in a reciprocating mode, the service life of the cloth bag in the whole dust removal bag 3 is prolonged, the frequency of cloth bag replacement is reduced, and cost is saved.
Then, the operator pulls the pull block 21 rightwards to enable the fixing rod 20 to be separated from the inside of the collecting box 16, the fixation of the rotating block 19 is released, the extension spring 22 is stretched at the moment, then, the operator rotates the rotating block 19 to enable the rotating block 19 to be separated from the outer surface of the collecting box 16, the fixation of the collecting box 16 is released, then, the operator pulls the handle 24 to enable the collecting box 16 to move rightwards under the limiting effect of the sealing strip 17, the fixing rod is separated from the inside of the dust removing box 2, and finally, the operator can clean dust in the collecting box 16.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a sack cleaner for exhaust-gas treatment, includes mounting bracket (1), its characterized in that: the utility model discloses a dust removal box, including installation frame (1) and fixed connection of top, dust removal box (2), the inside swing joint of dust removal box (2) has dust removal bag whole (3), the top fixedly connected with connecting rod (4) of dust removal bag whole (3) internal surface, the other end of connecting rod (4) runs through dust removal bag whole (3) inside and extends to dust removal bag whole (3) below and fixedly connected with push plate (5), the right side fixedly mounted of dust removal box (2) has driving motor (6), driving motor (6) output shaft's the other end fixedly connected with pivot (7), dust removal box (2) are run through to the other end of pivot (7) and extend to the left side of dust removal box (2) and fixedly connected with oval piece (8) that are located push plate (5) under, gag lever post (9) are worn out to top activity of connecting rod (4), the both sides of dust removal box (2) have all been seted up and have been located dust removal bag whole (3) side's (10), dust removal box (10) both sides (2) are located the inside fixed connection of the inside recess (10), the bottom of fixed plate (25) is fixedly connected with compression spring (26), the other end of compression spring (26) is fixedly connected with dust removal bag whole (3).
2. A bag-type dust collector for exhaust gas treatment according to claim 1, wherein: the dust removal box is characterized in that a fan (12) is fixedly arranged at the top of the left side of the dust removal box (2), an air outlet pipe (13) is fixedly connected to the left side of the fan (12), an air suction pipe (14) is fixedly connected to the right side of the fan (12), and the other end of the air suction pipe (14) penetrates through the left side of the dust removal box (2) and extends to the inside of the dust removal box (2).
3. A bag-type dust collector for exhaust gas treatment according to claim 1, wherein: the dust removal box is characterized in that an air inlet (15) is fixedly sleeved on the right side of the dust removal box (2), a collecting box (16) is movably connected to the bottom of the dust removal box (2), sealing strips (17) positioned inside the dust removal box (2) are fixedly connected to the two sides of the top of the collecting box (16), and the outer surface of the sealing strips (17) is movably connected with the inside of the dust removal box (2).
4. A bag-type dust collector for exhaust gas treatment according to claim 1, wherein: the dust removal box is characterized in that a circular shaft (18) is fixedly connected to the right side of the dust removal box (2), a rotating block (19) is movably sleeved on the outer surface of the circular shaft (18), a fixing rod (20) is movably sleeved on the right side of the rotating block (19), and the other end of the fixing rod (20) penetrates through the rotating block (19) and extends to the inside of the collecting box (16).
5. The bag-type dust collector for exhaust gas treatment according to claim 4, wherein: the right side fixedly connected with of dead lever (20) draws piece (21), the right side activity of dead lever (20) surface has cup jointed extension spring (22), the left side of extension spring (22) and the right side fixed connection of rotating block (19), the right side of extension spring (22) and the left side fixed connection of drawing piece (21).
6. A bag-type dust collector for exhaust gas treatment according to claim 1, wherein: the bottom of the left side of the dust removal box (2) is fixedly connected with a positioning block (23), and the right side of the positioning block (23) is movably connected with the left side of the collecting box (16).
7. A bag-type dust collector for exhaust gas treatment according to claim 3, wherein: the right side of collection box (16) fixedly connected with is located handle (24) of dead lever (20) below, the surface of handle (24) is coarse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323211848.2U CN221131417U (en) | 2023-11-27 | 2023-11-27 | Cloth bag dust remover for waste gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323211848.2U CN221131417U (en) | 2023-11-27 | 2023-11-27 | Cloth bag dust remover for waste gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221131417U true CN221131417U (en) | 2024-06-14 |
Family
ID=91423161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323211848.2U Active CN221131417U (en) | 2023-11-27 | 2023-11-27 | Cloth bag dust remover for waste gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221131417U (en) |
-
2023
- 2023-11-27 CN CN202323211848.2U patent/CN221131417U/en active Active
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