CN213816204U - Impregnating device - Google Patents
Impregnating device Download PDFInfo
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- CN213816204U CN213816204U CN202023006530.7U CN202023006530U CN213816204U CN 213816204 U CN213816204 U CN 213816204U CN 202023006530 U CN202023006530 U CN 202023006530U CN 213816204 U CN213816204 U CN 213816204U
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- roller
- gas diffusion
- diffusion layer
- impregnation
- dipping
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
A dipping device comprises a dipping disk, a first roller and a second roller, wherein the dipping disk is used for containing dipping liquid, the first roller is used for supporting and conveying a gas diffusion layer conveyed out from a unreeling shaft, the first roller is positioned above the dipping disk, the second roller can move from a first position to a second position along a first direction, when the second roller is positioned at the first position, the second roller is contacted with the impregnation liquid, the second roller can press and drive the gas diffusion layer output by the first roller to move along the second direction, so that different areas of the gas diffusion layer are contacted with the impregnation liquid, so as to realize the impregnation of the gas diffusion layer, the impregnated gas diffusion layer is transmitted to a winding shaft through a second roller, after the impregnation process is finished, the second roller passes and moves to the second position along first direction, does not need the manual work to remove the second roller, labour saving and time saving to reduce gas diffusion layer's production process.
Description
Technical Field
The utility model relates to a fuel cell field, in particular to steeping device.
Background
The method comprises the steps that a gas diffusion layer of a fuel cell needs to be subjected to an impregnation process during production, the gas diffusion layer needs to be conveyed from an unwinding shaft to a winding shaft through a roller during the impregnation process, part of the roller is in contact with an impregnation liquid, so that the gas diffusion layer can be impregnated by the impregnation liquid during the conveying process to complete the impregnation process of the gas diffusion layer, and the gas diffusion layer which completes the impregnation process cannot be impregnated again by the impregnation liquid during subsequent processes.
SUMMERY OF THE UTILITY MODEL
Based on this, the main object of the present invention is to provide a dipping apparatus for a gas diffusion layer, which does not require removal of a roll when the dipping process and the subsequent process are switched.
In order to achieve the above object, the present invention provides a dipping device, including:
the dipping tray is used for containing a dipping solution;
a first roller for supporting and transporting the gas diffusion layer delivered from the unreeling shaft, the first roller being positioned above the dipping tray; and
the second roller can move from a first position to a second position along a first direction relative to the dipping disk, when the second roller is located at the first position, the second roller is in contact with the dipping liquid, the second roller can be pressed and drives the gas diffusion layer output by the first roller to move along a second direction, different areas of the gas diffusion layer are in contact with the dipping liquid, so that the dipping of the gas diffusion layer is realized, and the dipped gas diffusion layer is conveyed to the take-up shaft through the second roller;
the second roller is located above the first roller when in the second position, and the second roller is separated from the impregnation liquid in the process of moving from the first position to the second position along the first direction, so that the impregnated gas diffusion layer is separated from the impregnation liquid along the first direction under the action of the tension of the unwinding shaft and the winding shaft, moves to the height of the first roller and is transmitted to the winding shaft through the first roller.
Preferably, the second pass roller is further movable from the second position to the first position in a third direction opposite the first direction.
Preferably, the second passing rollers comprise a plurality of second passing rollers which are arranged at the same horizontal height at intervals, and each second passing roller can synchronously move relative to the impregnation disc.
Preferably, the dipping device further comprises a third roller arranged at an interval with the first roller, the third roller is located above the dipping disk, when the second roller is located at the first position, the third roller is used for transmitting the gas diffusion layer output by the second roller to the take-up shaft, and when the second roller is located at the second position, the third roller is used for transmitting the dipped gas diffusion layer output by the first roller to the take-up shaft.
Preferably, the third roller and the first roller are positioned at the same level.
Preferably, the dipping device further comprises a support, the dipping disc is arranged on the support, the first roller is rotatably connected with the support, the first roller can transmit the gas diffusion layer conveyed out of the unreeling shaft by rotating around the axis of the first roller, and the second roller is movably arranged on the support.
Preferably, the dipping device further comprises a first driving member connected with the second roller, and the first driving member is used for driving the second roller to move from the first position to the second position along the first direction.
Preferably, the first driving member comprises a plurality of driving members, each of the driving members is connected with the second roller, and each of the driving members can synchronously drive the second roller to move along the first direction.
Preferably, the dip pan is movable in the first direction.
Preferably, the dipping device further comprises a second driving member, the second driving member is connected with the dipping disk, and the second driving member is used for driving the dipping disk to move along the first direction.
The utility model discloses technical scheme has following advantage, when gas diffusion layer carries out the flooding process, the axle of unreeling carries out gas diffusion layer, gas diffusion layer is crossed the roller through first roller and second and is transmitted to the rolling axle, because the roller is crossed to the second and impregnation liquid phase contact, and gas diffusion layer is pressed by the second roller and is held, therefore, gas diffusion layer can be impregnated by the impregnating solution in the flooding dish when passing the roller through the second, the second is crossed the roller and is taken the gas diffusion layer through first roller output and when removing along the second direction, make the different regional contact impregnating solution of gas diffusion layer, gas diffusion layer after being impregnated is crossed the roller through the second and is transmitted to the rolling axle. The gas diffusion layer can not be soaked by the soaking liquid when the subsequent process is carried out, the second roller passes through and moves to the upper part of the first roller along the first direction, so that the soaked gas diffusion layer conveyed out from the unreeling shaft is transmitted to the reeling shaft through the first roller without being transmitted through the second roller, and the gas diffusion layer cannot be contacted with the soaking liquid in the process of being transmitted to the reeling shaft through the first roller because the first roller is positioned above the soaking disc. Traditional saturating device needs the manual work to cross the roller with the second and demolishs in order to carry out subsequent handling to gas diffusion layer after accomplishing the flooding process, and the roller can be followed first direction and removed to the second in this application, consequently, need not cross the roller with the second and demolishs labour saving and time saving when this application carries out the conversion of flooding process and subsequent handling to reduce gas diffusion layer's production process.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the devices shown in the drawings without creative efforts.
FIG. 1 is an isometric view of an immersion apparatus according to one embodiment;
FIG. 2 is an isometric view of an embodiment of a steeping device concealing the frame.
Wherein, 100, dipping a disc; 200. impregnating liquid; 300. a first roller; 400. a second roller; 500. a third roller passing; 600. a support; 700. a first driving member; 800. a second driving member.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The specific apparatus of the impregnation apparatus will be mainly described below.
As shown in fig. 1-2, an impregnation apparatus includes an impregnation tray 100, a first over-roller 300 and a second over-roller 400, the impregnation tray 100 is used for containing an impregnation liquid 200, the first over-roller 300 is used for supporting and transporting a gas diffusion layer delivered from a unreeling shaft, the first over-roller 300 is located above the impregnation tray 100, the second over-roller 400 can move from a first position to a second position along a first direction, the second over-roller 400 is in contact with the impregnation liquid 200 when the second over-roller 400 is located at the first position, the second over-roller 400 can press and drive the gas diffusion layer delivered from the first over-roller 300 to move along a second direction, so that different regions of the gas diffusion layer are in contact with the impregnation liquid 200 to achieve impregnation of the gas diffusion layer, the impregnated gas diffusion layer is transported to a reeling shaft via the second over-roller 400, the second over-roller 400 is located above the first over-roller 300 when the second over-roller 400 is located at the second position, the second over-roller 400 moves from the first position to the second position along the first direction, the second roll 400 is separated from the impregnation liquid, so that the impregnated gas diffusion layer is separated from the impregnation liquid 200 in a first direction under the pulling force of the unwinding shaft and the winding shaft, moves to the height of the first roll 300, is unwound from the winding shaft, and is transmitted to the winding shaft through the first roll 300, specifically, the first direction is a linear direction indicated by an arrow of an X-axis in fig. 2, and the second direction is a direction indicated by an arrow of a Y-axis in fig. 2.
When the gas diffusion layer is impregnated, the unwinding shaft conveys the gas diffusion layer, the gas diffusion layer is conveyed to the winding shaft through the first roller 300 and the second roller 400, the second roller 400 is in contact with the impregnating solution 200, and the gas diffusion layer is pressed and held by the second roller 400, so that the gas diffusion layer is impregnated by the impregnating solution 200 in the impregnating disc 100 when passing through the second roller 400, when the second roller 400 drives the gas diffusion layer output by the first roller 300 to move along the second direction, different areas of the gas diffusion layer are in contact with the impregnating solution 200, and the impregnated gas diffusion layer is conveyed to the winding shaft through the second roller 400. The gas diffusion layer can not be impregnated by the impregnating solution when the subsequent process is carried out, the second roller 400 moves to the position above the first roller 300 along the first direction, so that the impregnated gas diffusion layer conveyed from the unreeling shaft is conveyed to the reeling shaft through the first roller 300 without being conveyed through the second roller 400, and the gas diffusion layer cannot be contacted with the impregnating solution 200 in the process of being conveyed to the reeling shaft through the first roller 300 because the first roller 300 is positioned above the impregnating disc 100. Traditional saturating device needs the manual work to remove second roller 400 after accomplishing the flooding process in order to carry out subsequent handling to gas diffusion layer, and second roller 400 in this application can be followed first direction and removed, consequently, need not remove second roller 400 when this application carries out the conversion of flooding process and subsequent handling, labour saving and time saving to reduce gas diffusion layer's production process.
In an embodiment, the second roller 400 is further capable of moving from the second position to the first position in a third direction opposite to the first direction, specifically, the third direction is a linear direction opposite to the direction indicated by the arrow of the X-axis in fig. 2.
After the gas diffusion layer is subjected to subsequent processes, the second roller 400 is located above the first roller 300, namely the second roller 400 is located at the second position, when a new gas diffusion layer needs to be subjected to an impregnation process, the second roller 400 moves to the position below the first roller 300, namely the second roller 400 is located at the first position, at the moment, the second roller 400 is in contact with the impregnation liquid 200, the new gas diffusion layer is subjected to the impregnation process, and the second roller 400 does not need to be manually transferred to the position below the first roller 300, so that time and labor are saved when the subsequent processes and the impregnation process are converted, and the production process of the gas diffusion layer is further shortened.
As shown in fig. 2, the second pass rollers 400 include a plurality of second pass rollers 400, the plurality of second pass rollers 400 are arranged at the same level at intervals, and each of the second pass rollers can move synchronously with respect to the impregnation tray, and specifically, since the plurality of second pass rollers 400 are included, when each of the second pass rollers 400 is located at the first position, the gas diffusion layers are simultaneously pressed by each of the second pass rollers 400, so that the volume of the gas diffusion layers impregnated in the impregnation liquid 200 is increased, and thus the impregnation of the gas diffusion layers in the impregnation liquid 200 is more sufficient.
In this embodiment, the second pass rollers 400 include two, two second pass rollers 400 are disposed at the same horizontal height at intervals, and the two second pass rollers can be synchronously moved from the first position to the second position along the first direction with respect to the impregnation tray, and specifically, since the second pass rollers 400 include two, when the two second pass rollers 400 are located at the first position, the gas diffusion layer is simultaneously pressed by the two second pass rollers 400, so that the volume of the gas diffusion layer impregnated in the impregnation liquid 200 is increased, thereby the impregnation of the gas diffusion layer in the impregnation liquid 200 is more sufficient.
As shown in fig. 2, the dipping apparatus further includes a third over-roller 500 spaced apart from the first over-roller 300, the third over-roller 500 is located above the dipping tray 100, when the second over-roller 400 is located at the first position, the third over-roller 500 is used to transfer the gas diffusion layer output by the second over-roller 400 to the take-up shaft, when the second over-roller 400 is located at the second position, the third over-roller 500 is used to transfer the dipped gas diffusion layer output by the first over-roller 300 to the take-up shaft, specifically, the third over-roller 500 is located above the second over-roller 400, so that the gas diffusion layer is transferred upward after passing through the second over-roller 400 to the third over-roller 500, and when the gas diffusion layer is directly transferred to the take-up shaft through the second over-roller 400, the gas diffusion layer contacts with the dipping tray 100 to damage the gas diffusion layer.
In this embodiment, the first roller 300 rotates around the axis of the first roller 300, the second roller 400 rotates around the axis of the second roller 400, and the third roller 500 rotates around the axis of the third roller 500 to transmit the gas diffusion layer, the axis of the first roller 300, the axis of the second roller 400, and the axis of the third roller 500 are parallel to each other, the rotation directions of the first roller 300 and the third roller 500 are the same, and the rotation directions of the second roller 400 and the first roller 300 are opposite.
In an embodiment, the third roller 500 includes a plurality of rollers, so that the process of transferring the gas diffusion layer to the take-up reel through the plurality of rollers 500 is more smooth.
In one embodiment, the first roll 300 includes a plurality of rolls, so that the process of transferring the gas diffusion layer to the second roll 400 through the plurality of first rolls 300 is more smooth.
As shown in fig. 1-2, the third roller 500 and the first roller 300 are located at the same horizontal height, and specifically, the height of the unwinding shaft and the winding shaft matched with the dipping device is the same, so that the third roller 500 and the first roller 300 are located at the same horizontal height and can be better matched with the unwinding shaft and the winding shaft, and the whole transmission process of the gas diffusion layer is more stable.
As shown in fig. 1, the dipping apparatus further includes a support 600, the dipping tray 100 is disposed on the support 600, the first pass roller 300 is rotatably connected to the support 600, the first pass roller 300 can transfer the gas diffusion layer delivered from the unreeling shaft by rotating around the axis of the first pass roller 300 itself, and the second pass roller 400 is movably disposed on the support 600.
As shown in fig. 2, the dipping device further comprises a first driving member 700, the first driving member 700 is connected with the second roller 400, and the first driving member 700 is used for driving the second roller 400 to move from the first position to the second position along the first direction without manually removing the second roller 400, so as to improve the automation degree of the dipping device.
In one embodiment, an end of the first driving member 700 facing away from the second roller 400 is disposed on the bracket 600.
In an embodiment, the first driving member 700 is further configured to drive the second roller 400 to move from the second position to the first position in the third direction without manually transferring the second roller 400 to the first position, thereby further improving the automation degree of the dipping apparatus.
As shown in fig. 2, the first driving member 700 includes a plurality of driving members 700, each of the driving members 700 is connected to the second roller 400, and each of the driving members 700 can synchronously drive the second roller 400 to move along the first direction, so that the movement of the second roller 400 in the first direction is more smooth and reliable.
In this embodiment, each second roller 400 is engaged with two first driving members 700, one end of each second roller 400 is connected to one first driving member 700, and the other end of each second roller 400 is connected to the other first driving member 700, so that the movement of each second roller 400 in the first direction and the third direction is more stable and reliable.
In one embodiment, the first driving member 700 is an air cylinder, and specifically, the air cylinder can directly output a linear force to move the second roller 400 in the first direction or the third direction, and if a driving source for outputting a torque, such as a motor, is used as the first driving member 700, a process of converting the torque into the linear force is required, and thus, a driving process of the air cylinder as the first driving member 700 is simpler.
In one embodiment, the dip pan 100 is movable in the first direction, and specifically, when the liquid level of the dip liquid 200 is lowered below the gas diffusion layer during dipping of the gas diffusion layer so that the gas diffusion layer cannot be dipped by the dip liquid 200, the dip pan 100 is driven to move in the first direction until the gas diffusion layer is dipped by the dip liquid 200 again, so that it is not necessary to stop the operation of the dipping apparatus halfway to add the dip liquid 200 to the dip pan 100.
As shown in fig. 1, the dipping apparatus further includes a second driving member 800, the second driving member 800 is connected to the dipping tray 100, the second driving member 800 is configured to drive the dipping tray 100 to move in the first direction, and specifically, in the dipping process of the gas diffusion layer, if the liquid level of the dipping liquid 200 is lowered below the gas diffusion layer, so that the gas diffusion layer cannot be dipped by the dipping liquid 200, the second driving member 800 is configured to drive the dipping tray 100 to move in the first direction until the gas diffusion layer is dipped by the dipping liquid 200 again, so that it is not necessary to stop the operation of the dipping apparatus halfway, so as to add the dipping liquid 200 into the dipping tray 100, so that the processing process of the gas diffusion layer is faster and more convenient, and the automation degree of the dipping apparatus is improved. In an embodiment, the second driving member 800 is further configured to drive the dip pan 100 to move in the third direction, and specifically, after the dip liquid 200 is added to the dip pan 100, the second driving member 800 is further configured to drive the dip pan 100 to move in the third direction, so as to reduce a contact area between the second roller 400 and the dip liquid 200, and prevent the dip liquid 200 from being thrown out of the dip pan 100 by the second roller 400.
In one embodiment, the end of the second drive member 800 facing away from the dip pan 100 is connected to the bracket 600.
In one embodiment, the second driving member 800 is an air cylinder, and specifically, the air cylinder may directly output a linear force to move the dip pan 100 in the first direction or the third direction, and if a driving source that outputs a torque, such as a motor, is used as the second driving member 800, a process of converting the torque into the linear force is required, and thus, a driving process of the air cylinder as the second driving member 800 is simpler.
Referring to fig. 1-2, the coordination and action process among the mechanisms of the steeping device is as follows:
when the gas diffusion layer is impregnated, the unreeling shaft conveys the gas diffusion layer to the first roller 300, the first roller 300 supports the gas diffusion layer and conveys the gas diffusion layer to the second roller 400, the second roller 400 is in contact with the impregnating liquid 200, and the gas diffusion layer is in contact with one side of the second roller 400 facing the impregnating disc 100, so that the gas diffusion layer is impregnated by the impregnating liquid 200 in the impregnating disc 100, the second roller 400 drives the gas diffusion layer output by the first roller 300 to move in the second direction, so that different areas of the gas diffusion layer are in contact with the impregnating liquid 200, the second roller 400 conveys the impregnated gas diffusion layer to the third roller 500, and the third roller 500 supports the gas diffusion layer and conveys the gas diffusion layer to the reeling shaft, so as to complete the gas diffusion layer impregnation process.
When the gas diffusion layer is subjected to subsequent processes, the first driving member 700 drives the second roller 400 to move from the first position to the second position along the first direction, the second roller 400 at the second position is positioned above the first roller 300, so that the gas diffusion layer positioned under the second roller 400 is separated from the impregnation fluid 200 in the first direction by the tensile force of the unwinding shaft and the winding shaft and moves to the height of the first roller 300, then, the unwinding reel delivers the impregnated gas diffusion layer to the first roll 300, the first roll 300 supports the gas diffusion layer and transfers the gas diffusion layer to the third roll 500, the third roll 500 supports the gas diffusion layer and transfers the gas diffusion layer to the winding reel, since the first pass roller 300 is located above the dip pan 100, and the third pass roller 500 is located at the same level as the first pass roller 300, therefore, the process of transferring the gas diffusion layer to the take-up reel through the first and third pass rollers 300 and 500 does not contact the impregnation fluid 200.
When a new gas diffusion layer needs to be impregnated, the first driving member 700 drives the second roller 400 to move from the second position to the first position along the third direction, the second roller 400 at the first position contacts with the impregnation liquid 200, and then the impregnation process of the gas diffusion layer is repeated.
The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent device transform that the content of the specification and the attached drawings was done, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.
Claims (10)
1. An impregnation apparatus, comprising:
the dipping tray is used for containing a dipping solution;
a first roller for supporting and transporting the gas diffusion layer delivered from the unreeling shaft, the first roller being positioned above the dipping tray; and
the second roller can move from a first position to a second position along a first direction relative to the dipping disk, when the second roller is located at the first position, the second roller is in contact with the dipping liquid, the second roller can be pressed and drives the gas diffusion layer output by the first roller to move along a second direction, different areas of the gas diffusion layer are in contact with the dipping liquid, so that the dipping of the gas diffusion layer is realized, and the dipped gas diffusion layer is conveyed to a take-up shaft through the second roller;
the second roller is located above the first roller when in the second position, and the second roller is separated from the impregnation liquid in the process of moving from the first position to the second position along the first direction, so that the impregnated gas diffusion layer is separated from the impregnation liquid along the first direction under the action of the tension of the unwinding shaft and the winding shaft, moves to the height of the first roller and is transmitted to the winding shaft through the first roller.
2. The impregnation apparatus of claim 1, wherein the second pass-roller is further movable from the second position to the first position in a third direction opposite the first direction.
3. The impregnation apparatus of claim 1, wherein the second pass rollers include a plurality of second pass rollers, the plurality of second pass rollers are spaced apart at a same level, and each of the second pass rollers is capable of moving synchronously with respect to the impregnation tray.
4. The impregnation apparatus of claim 1, further comprising a third roller spaced apart from the first roller, the third roller being located above the impregnation plate, wherein when the second roller is located at the first position, the third roller is configured to transfer the gas diffusion layer outputted from the second roller to the take-up shaft, and when the second roller is located at the second position, the third roller is configured to transfer the impregnated gas diffusion layer outputted from the first roller to the take-up shaft.
5. The impregnation apparatus of claim 4, wherein the third pass roller is at the same level as the first pass roller.
6. The impregnation apparatus of claim 1, further comprising a support, wherein the impregnation tray is disposed on the support, wherein the first roll is rotatably coupled to the support, wherein the first roll is capable of transferring the gas diffusion layer delivered from the unwinding shaft by rotating around an axis of the first roll, and wherein the second roll is movably disposed on the support.
7. The impregnation apparatus of claim 1, further comprising a first drive coupled to the second roller, the first drive configured to drive the second roller in the first direction from the first position to the second position.
8. The impregnation apparatus of claim 7, wherein said first drive members comprise a plurality of drive members, each of said first drive members being connected to said second pass rollers, each of said first drive members being capable of driving said second pass rollers synchronously to move in said first direction.
9. The steeping device of claim 1, wherein the steeping disk is movable in the first direction.
10. The steeping device as claimed in claim 9, further comprising a second driving member connected to the steeping disk, the second driving member for driving the steeping disk to move in the first direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023006530.7U CN213816204U (en) | 2020-12-15 | 2020-12-15 | Impregnating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023006530.7U CN213816204U (en) | 2020-12-15 | 2020-12-15 | Impregnating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213816204U true CN213816204U (en) | 2021-07-27 |
Family
ID=76946156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023006530.7U Active CN213816204U (en) | 2020-12-15 | 2020-12-15 | Impregnating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213816204U (en) |
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2020
- 2020-12-15 CN CN202023006530.7U patent/CN213816204U/en active Active
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