CN220648500U - Energy-saving building fresh air device - Google Patents
Energy-saving building fresh air device Download PDFInfo
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- CN220648500U CN220648500U CN202321854013.6U CN202321854013U CN220648500U CN 220648500 U CN220648500 U CN 220648500U CN 202321854013 U CN202321854013 U CN 202321854013U CN 220648500 U CN220648500 U CN 220648500U
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- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 24
- 238000001914 filtration Methods 0.000 description 9
- 239000010813 municipal solid waste Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The application discloses energy-saving building new trend device relates to fresh air processing technology field, and fresh air box subassembly, it includes the box, and the air-supply line is installed in the left side of box, and first fan blade is installed to the inner chamber of air-supply line, and the tuber pipe is installed on the right side of box, and the second fan blade is installed to the inner chamber of tuber pipe, and the top of box is provided with the driving medium, and the driving medium is connected with first fan blade and second fan blade respectively, and filter unit sets up in the inner chamber of box, and it includes the filter screen, and the center department at the box inner chamber is connected to the filter screen, and the both sides of filter screen all are provided with the clearance piece, and the top of box is provided with the driving medium. This application sets up through the cooperation of filter screen, clearance piece and driving piece for the device has the clear advantage of being convenient for, has solved the filter plate of present new device when clean, and the user is dismantled the apron and take out the filter plate and just can clean, problem that cleaning efficiency is lower has practiced thrift the more time of user.
Description
Technical Field
The application relates to the technical field of fresh air treatment, in particular to an energy-saving building fresh air device.
Background
The fresh air device is effective air purifying equipment, and can circulate indoor air, on one hand, the indoor polluted air is discharged outdoors, and on the other hand, the outdoor fresh air is input into the room after the measures of sterilization, disinfection, filtration and the like, so that the room is fresh and clean at all times.
In the process of realizing the application, the inventor finds that at least the following problems exist in the technology, and the Chinese patent publication No. CN211551896U discloses a building energy-saving fresh air circulating device, a first clamping groove is arranged in a cover plate of a traditional fresh air machine filtering mechanism, a fixing mechanism is arranged in the clamping groove, and the filtering disc can be directly fixed on the cover plate by matching with a second clamping groove in the filtering disc, so that the filtering disc can be directly pushed into two first fixing plates during installation, the filtering disc can be prevented from sliding to the ground to cause damage during installation, and although the device can clean the filtering disc, a user is required to detach the cover plate and take out the filtering disc for cleaning when the filtering disc is cleaned, the cleaning efficiency is low, and more time is wasted for the user.
Disclosure of Invention
In order to solve the problem that the cleaning efficiency is low and more time is wasted for users when the filter disc is cleaned by the device, the utility model provides an energy-saving building fresh air device.
The application provides an energy-saving building new trend device adopts following technical scheme:
an energy-saving building fresh air device comprises,
the fresh air box assembly comprises a box body, an air inlet pipe is arranged on the left side of the box body, a first fan blade is arranged in an inner cavity of the air inlet pipe, an air outlet pipe is arranged on the right side of the box body, a second fan blade is arranged in an inner cavity of the air outlet pipe, and a transmission part is arranged at the top of the box body and is respectively connected with the first fan blade and the second fan blade;
the filter assembly is arranged in the inner cavity of the box body and comprises a filter screen, the filter screen is connected to the center of the inner cavity of the box body, cleaning pieces are arranged on two sides of the filter screen, a driving piece is arranged at the top of the box body, and the bottom of the driving piece is connected with the top of the cleaning piece;
the trash discharging assembly is arranged at the bottom of the box body and comprises trash discharging openings, the trash discharging openings are formed in the bottom of the box body and close to one end of the filter screen, a baffle is arranged at the bottom of the box body, a locating piece is arranged between the locating piece and the box body, and locking pieces are arranged on two sides of the baffle.
Optionally, the clearance piece includes two sets of lead screws, two sets of the lead screw passes through the bearing to be connected the inner chamber of box, two sets of the equal threaded connection of outer wall of lead screw has the screw, two sets of the screw is close to the one end of filter screen all is connected with the connecting rod, two sets of the connecting rod deviates from the cleaning brush is all installed to the one end of screw, the box inner chamber is close to the one end of lead screw is connected with the polished rod, the outer wall cover of polished rod is equipped with the sliding sleeve, the sliding sleeve be close to one side of lead screw with the outside fixed connection of screw.
Through adopting above-mentioned technical scheme, drive screw reciprocates when the lead screw rotates, drives the sliding sleeve and slides along the polished rod when the screw removes to can carry out spacingly to the screw, drive through the connecting rod when the screw removes and clean the brush and reciprocate, thereby can strike off the impurity on filter screen surface fast, avoid impurity to pile up as far as possible, influence device ventilation effect.
Optionally, the driving piece includes servo motor, servo motor installs the top of box, servo motor's power take off end installs the driving shaft, the outer wall of driving shaft has cup jointed the driving gear, the both sides of driving gear all mesh is connected with driven gear, and two sets of driven gear's inner chamber has all cup jointed the driven shaft, two sets of driven gear's bottom respectively with two sets of top fixed connection of lead screw.
Through adopting above-mentioned technical scheme, drive the driving gear through the driving shaft when servo motor starts and rotate, the driving gear rotates and drives driven gear and rotate, and driven gear rotates and drives the driven shaft and rotate to can drive two sets of lead screws synchronous rotation.
Optionally, one end of the air inlet pipe far away from the first fan blade is connected with a blocking net.
By adopting the technical scheme, larger impurities in the air can be blocked, and the first fan blade is prevented from being damaged by the impurities as much as possible.
Optionally, four corners of the bottom of the box body are connected with support columns.
Through adopting above-mentioned technical scheme, support whole device through four sets of support columns.
Optionally, the driving medium includes the support body, the support body is installed the top of box, be connected with the pivot through the bearing between the support body, be used for the drive the pivoted step motor of pivot is installed on the right side of support body, the both ends of step motor outer wall all are provided with gear chain structure, two sets of gear chain structure respectively with first fan blade with the second fan blade is close to one side in box center is connected.
Through adopting above-mentioned technical scheme, drive the pivot rotation when step motor starts, the pivot rotates and drives first fan blade and second fan blade through gear chain structure and rotate to can drive two sets of fan blades through a step motor and rotate, embodied energy-conserving advantage.
Optionally, the locating piece includes two sets of locating pieces, two sets of locating pieces are installed the both ends at baffle top, the bottom of box seted up with locating piece grafting complex constant head tank.
Through adopting above-mentioned technical scheme, peg graft the locating piece to in the constant head tank that corresponds to the convenience is installed the baffle in the bottom of box, conveniently blocks impurity, the unified processing in later stage of being convenient for.
Optionally, the retaining member includes two sets of fixed plates, two sets of the both ends of bottom half are installed to the fixed plate, and two sets of the center department of fixed plate all runs through the movable rod, and two sets of the movable rod is close to the one end of baffle all is connected with the movable plate, and two sets of the outer wall of movable rod all overlaps and is equipped with positioning spring, positioning spring is located the fixed plate with between the movable plate, two sets of the movable plate is kept away from the one end of movable rod all is connected with the inserted bar, the both sides of baffle all seted up with inserted bar grafting complex slot.
Through adopting above-mentioned technical scheme, when the fixed action to the baffle is removed to needs, to both sides pulling movable rod drive fly leaf outside removal, positioning spring is compressed this moment, can drive the inserted bar and remove when the fly leaf removes, until the fixed action of baffle can be removed to inserted bar and slot separation.
In summary, the present application includes at least one of the following beneficial effects:
(1) Through the cooperation setting of filter screen, clearance spare and driving piece for the device has the clear advantage of being convenient for, has solved the filter plate of present new device when clean, needs the user to dismantle the apron and take out the filter plate and just can clean, problem that cleaning efficiency is lower, has practiced thrift the more time of user.
(2) Through the cooperation setting of box, air-supply line, first fan blade, play tuber pipe, second fan blade and driving medium to realize that a step motor drives two sets of fan blades and operates, make the device reach energy-conserving purpose.
(3) Through the cooperation setting of trash outlet, baffle, setting element and retaining member, when impurity pile up more in the bottom half, through the fixed action of retaining member unblock baffle to utilize the setting element to demolish the baffle from the box, make impurity follow trash outlet discharge box can.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of the present application;
FIG. 2 is a schematic elevational view of the present application;
FIG. 3 is a schematic view of the structure of FIG. 1A of the present application;
fig. 4 is a schematic structural diagram of fig. 1B of the present application.
In the figure:
1. fresh air box component; 101. a case; 1011. a support column; 102. an air inlet pipe; 1021. a blocking net; 103. a first fan blade; 104. an air outlet pipe; 105. a second fan blade; 106. a transmission member; 1061. a frame body; 1062. a rotating shaft; 1063. a stepping motor; 1064. a gear chain structure;
2. a filter assembly; 201. a filter screen; 202. cleaning the piece; 2021. a screw rod; 2022. a nut; 2023. a connecting rod; 2024. a cleaning brush; 2025. a polish rod; 2026. a sliding sleeve; 203. a driving member; 2031. a servo motor; 2032. a driving shaft; 2033. a drive gear; 2034. a driven gear; 2035. a driven shaft;
3. a trash removal assembly; 301. a impurity discharging port; 302. a baffle; 303. a positioning piece; 3031. a positioning block; 3032. a positioning groove; 304. a locking member; 3041. a fixing plate; 3042. a movable rod; 3043. a movable plate; 3044. a positioning spring; 3045. a rod; 3046. a slot.
Description of the embodiments
The utility model is described in further detail below with reference to fig. 1-4.
Referring to fig. 1 and 2, the utility model discloses an energy-saving building fresh air device, which comprises a fresh air box assembly 1, wherein the fresh air box assembly comprises a box body 101, an air inlet pipe 102 is arranged on the left side of the box body 101, a first fan blade 103 is arranged in an inner cavity of the air inlet pipe 102, an air outlet pipe 104 is arranged on the right side of the box body 101, a second fan blade 105 is arranged in an inner cavity of the air outlet pipe 104, a transmission piece 106 is arranged at the top of the box body 101, and the transmission piece 106 is respectively connected with the first fan blade 103 and the second fan blade 105.
The filter component 2, the filter component 2 sets up in the inner chamber of box 101, and it includes filter screen 201, and filter screen 201 connects in the center department of box 101 inner chamber perpendicularly, and filter screen 201's both sides all are provided with clearance piece 202, and box 101's top is provided with driving piece 203, and the bottom of driving piece 203 is connected with clearance piece 202's top.
The impurity removing assembly 3, the impurity removing assembly 3 is arranged at the bottom of the box body 101, the impurity removing assembly comprises an impurity removing opening 301, the impurity removing opening 301 is arranged at one end, close to the filter screen 201, of the bottom of the box body 101, a baffle 302 is arranged at the bottom of the box body 101, a positioning piece 303 is arranged between the positioning piece 303 and the box body 101, and locking pieces 304 are arranged on two sides of the baffle 302.
Referring to fig. 1 and 3, the cleaning member 202 includes two sets of lead screws 2021, the two sets of lead screws 2021 are rotatably connected in an inner cavity of the box 101 through bearings, nuts 2022 are connected to outer walls of the two sets of lead screws 2021 in a threaded manner, connecting rods 2023 are fixedly connected to one ends of the two sets of nuts 2022, which are close to the filter screen 201, cleaning brushes 2024 are fixedly installed at one ends of the two sets of connecting rods 2023, which are away from the nuts 2022, a polish rod 2025 is vertically connected to one end of the inner cavity of the box 101, which is close to the lead screws 2021, and a sliding sleeve 2026 is arranged on an outer wall sliding sleeve of the polish rod 2025, and one side of the sliding sleeve 2026, which is close to the lead screws 2021, is fixedly connected with the outer sides of the nuts 2022. The screw 2022 is driven to move up and down when the screw rod 2021 rotates, the sliding sleeve 2026 is driven to slide along the polished rod 2025 when the screw rod 2022 moves, so that the screw rod 2022 can be limited, the cleaning brush 2024 is driven to move up and down through the connecting rod 2023 when the screw rod 2022 moves, impurities on the surface of the filter screen 201 can be scraped rapidly, accumulation of the impurities is avoided as much as possible, and the ventilation effect of the device is affected.
Referring to fig. 1 and 2, the driving piece 203 includes a servo motor 2031, the servo motor 2031 is fixedly installed at the top of the box 101, a driving shaft 2032 is installed at the power output end of the servo motor 2031, a driving gear 2033 is fixedly sleeved on the outer wall of the driving shaft 2032, driven gears 2034 are connected to two sides of the driving gear 2033 in a meshed manner, driven shafts 2035 are fixedly sleeved in inner cavities of the two groups of driven gears 2034, and bottoms of the two groups of driven gears 2034 are fixedly connected with the tops of the two groups of screw rods 2021 respectively. When the servo motor 2031 is started, the driving gear 2033 is driven to rotate by the driving shaft 2032, the driven gear 2034 is driven to rotate by the rotation of the driving gear 2033, the driven shaft 2035 is driven to rotate by the rotation of the driven gear 2034, and therefore two groups of screw rods 2021 can be driven to synchronously rotate.
Referring to fig. 1, a blocking net 1021 is connected to one end of the air inlet pipe 102 far from the first fan blade 103. Thus, larger impurities in the air can be blocked, and the first fan blade 103 is prevented from being damaged by the impurities as much as possible. The four corners of the bottom of the box 101 are fixedly connected with support columns 1011. The entire device is supported by four sets of support columns 1011.
The specific implementation principle is as follows: when air circulation is needed indoors, the frame 1061 is opened to enable outdoor fresh air to enter the box 101 from the air inlet pipe 102, impurities in the air are filtered through the filter screen 201, the filtered air is discharged out of the box 101 from the air outlet pipe 104, when the filter screen 201 is used for a long time, impurities on the surface of the filter screen 201 are accumulated and are easy to be blocked, the servo motor 2031 is controlled to work, the servo motor 2031 drives the driving gear 2033 to rotate through the driving shaft 2032, the driven gear 2034 is driven to rotate, so that the driven shaft 2035 can be driven to rotate, the driven shaft 2035 drives two groups of screw rods 2021 to synchronously rotate, the screw rods 2021 drive the screw rods 2022 to move up and down, the sliding sleeve 2026 is driven to slide along the polish rod 2025, the screw rods 2022 are limited, the cleaning brush 2024 is driven to move up and down through the connecting rod 2023, impurities on the surface of the filter screen 201 are rapidly scraped, and the problem that a user is required to detach a cover plate and take out a new filter plate for cleaning when a filter plate of a new device is cleaned is solved, and cleaning efficiency is low.
Referring to fig. 1 and 2, in this embodiment, based on the same concept as that of the first embodiment, the energy-saving fresh air device for building further includes a driving member 106 including a frame body 1061, where the frame body 1061 is installed at the top of the box 101, a rotating shaft 1062 is rotatably connected between the frame bodies 1061 through a bearing, a stepper motor 1063 for driving the rotating shaft 1062 to rotate is installed on the right side of the frame body 1061, two ends of the outer wall of the stepper motor 1063 are respectively provided with a gear chain structure 1064, and two groups of gear chain structures 1064 are respectively connected with one side of the first fan blade 103 and one side of the second fan blade 105 close to the center of the box 101.
The specific implementation principle is as follows: when the stepping motor 1063 is started, the rotating shaft 1062 is driven to rotate, and the rotating shaft 1062 drives the first fan blade 103 and the second fan blade 105 to rotate through the gear chain structure 1064, so that two groups of fan blades can be driven to rotate through one stepping motor 1063, and the energy-saving advantage of the device is reflected.
Referring to fig. 1 and fig. 4, in this embodiment, based on the same concept as the first embodiment, the energy-saving fresh air device for building further includes a positioning member 303 including two sets of positioning blocks 3031, where the two sets of positioning blocks 3031 are fixedly installed at two ends of the top of the baffle 302, and a positioning groove 3032 in plug-in fit with the positioning blocks 3031 is formed at the bottom of the box 101. The positioning blocks 3031 are inserted into the corresponding positioning grooves 3032, so that the baffle 302 is conveniently arranged at the bottom of the box body 101, impurities are conveniently blocked, and later unified treatment is convenient.
Referring to fig. 1 and 4, the locking member 304 includes two sets of fixing plates 3041, the two sets of fixing plates 3041 are fixedly mounted at two ends of the bottom of the case 101, movable rods 3042 are all penetrated at the center of the two sets of fixing plates 3041, one ends of the two sets of movable rods 3042, which are close to the baffle 302, are all connected with movable plates 3043, the movable plates 3043 are slidably connected with the case 101, positioning springs 3044 are sleeved on outer walls of the two sets of movable rods 3042, the positioning springs 3044 are located between the fixing plates 3041 and the movable plates 3043, inserting rods 3045 are fixedly connected at one ends, which are far away from the movable rods 3042, of the two sets of movable plates 3043, and inserting grooves 3046 in plug-in fit with the inserting rods 3045 are formed in two sides of the baffle 302. When the fixing effect on the baffle 302 needs to be released, the movable rod 3042 is pulled to two sides to drive the movable plate 3043 to move outwards, at this time, the positioning spring 3044 is compressed, and the movable plate 3043 can drive the inserting rod 3045 to move when moving until the inserting rod 3045 is separated from the slot 3046, so that the fixing effect on the baffle 302 can be released.
The specific implementation principle is as follows: when the impurities accumulated at the bottom of the box 101 need to be discharged, an operator pulls the movable rods 3042 to two sides to drive the movable plates 3043 to move outwards, at this time, the positioning springs 3044 are compressed, the movable plates 3043 can drive the inserting rods 3045 to move until the inserting rods 3045 are separated from the inserting grooves 3046, at this time, the baffle 302 is pulled downwards, the baffle 302 drives the positioning blocks 3031 to move downwards to be separated from the positioning grooves 3032, so that the baffle 302 can be detached from the box 101, and then the impurities are discharged out of the box 101 through the impurity discharging openings 301.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. An energy-saving building new trend device, its characterized in that: comprising the steps of (a) a step of,
the novel air box assembly (1) comprises a box body (101), an air inlet pipe (102) is arranged on the left side of the box body (101), a first fan blade (103) is arranged in an inner cavity of the air inlet pipe (102), an air outlet pipe (104) is arranged on the right side of the box body (101), a second fan blade (105) is arranged in an inner cavity of the air outlet pipe (104), a transmission piece (106) is arranged at the top of the box body (101), and the transmission piece (106) is respectively connected with the first fan blade (103) and the second fan blade (105);
the filter assembly (2) is arranged in the inner cavity of the box body (101), the filter assembly comprises a filter screen (201), the filter screen (201) is connected to the center of the inner cavity of the box body (101), cleaning pieces (202) are arranged on two sides of the filter screen (201), a driving piece (203) is arranged on the top of the box body (101), and the bottom of the driving piece (203) is connected with the top of the cleaning piece (202);
arrange miscellaneous subassembly (3), arrange miscellaneous subassembly (3) and be in the bottom of box (101), it includes arranges miscellaneous mouthful (301), arrange miscellaneous mouthful (301) and offer the bottom of box (101) is close to one end of filter screen (201), the bottom of box (101) is provided with baffle (302), baffle (302) with be provided with setting element (303) between box (101), the both sides of baffle (302) all are provided with retaining member (304).
2. The energy-saving building fresh air device according to claim 1, wherein: the cleaning piece (202) comprises two groups of screw rods (2021), the two groups of screw rods (2021) are connected with the inner cavity of the box body (101) through bearings, screw nuts (2022) are connected to the outer walls of the screw rods (2021) in a threaded mode, connecting rods (2023) are connected to one ends, close to the filter screen (201), of the screw nuts (2022), cleaning brushes (2024) are arranged at one ends, deviating from the screw nuts (2022), of the connecting rods (2023), a polished rod (2025) is connected to one end, close to the screw rods (2021), of the inner cavity of the box body (101), a sliding sleeve (2026) is sleeved on the outer wall of the polished rod (2025), and one side, close to the screw rods (2021), of the sliding sleeve (2026) is fixedly connected with the outer sides of the screw nuts (2022).
3. The energy-saving building fresh air device according to claim 2, wherein: the driving piece (203) comprises a servo motor (2031), the servo motor (2031) is installed at the top of the box body (101), a driving shaft (2032) is installed at the power output end of the servo motor (2031), a driving gear (2033) is sleeved on the outer wall of the driving shaft (2032), driven gears (2034) are connected to the two sides of the driving gear (2033) in a meshed mode, driven shafts (2035) are sleeved on the inner cavities of the driven gears (2034), and the bottoms of the driven gears (2034) are fixedly connected with the tops of the screw rods (2021) respectively.
4. The energy-saving building fresh air device according to claim 1, wherein: one end of the air inlet pipe (102) far away from the first fan blade (103) is connected with a blocking net (1021).
5. The energy-saving building fresh air device according to claim 1, wherein: and the four corners of the bottom of the box body (101) are connected with supporting columns (1011).
6. The energy-saving building fresh air device according to claim 1, wherein: the transmission piece (106) comprises a frame body (1061), the top of box (101) is installed to frame body (1061), be connected with pivot (1062) through the bearing between frame body (1061), be used for the drive on the right side of frame body (1061) pivot (1062) pivoted step motor (1063), the both ends of step motor (1063) outer wall all are provided with gear chain structure (1064), two sets of gear chain structure (1064) respectively with first fan blade (103) with second fan blade (105) are close to one side at box (101) center is connected.
7. The energy-saving building fresh air device according to claim 1, wherein: the locating piece (303) comprises two groups of locating blocks (3031), the two groups of locating blocks (3031) are installed at two ends of the top of the baffle plate (302), and locating grooves (3032) which are in plug-in fit with the locating blocks (3031) are formed in the bottom of the box body (101).
8. The energy-saving building fresh air device according to claim 1, wherein: the locking piece (304) comprises two groups of fixing plates (3041), the two groups of fixing plates (3041) are installed at two ends of the bottom of the box body (101), the two groups of fixing plates (3041) are provided with movable rods (3042) in a penetrating mode at the center of the fixing plates (3041), one ends, close to the baffle (302), of the movable rods (3042) are connected with movable plates (3043), the outer walls of the movable rods (3042) are provided with positioning springs (3044) in a sleeved mode, the positioning springs (3044) are located between the fixing plates (3041) and the movable plates (3043), the two groups of movable plates (3043) are away from one ends of the movable rods (3042) and are connected with inserting rods (3045), and inserting grooves (3046) in insertion fit with the inserting rods (3045) are formed in two sides of the baffle (302).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321854013.6U CN220648500U (en) | 2023-07-14 | 2023-07-14 | Energy-saving building fresh air device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321854013.6U CN220648500U (en) | 2023-07-14 | 2023-07-14 | Energy-saving building fresh air device |
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Publication Number | Publication Date |
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CN220648500U true CN220648500U (en) | 2024-03-22 |
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ID=90266144
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CN202321854013.6U Active CN220648500U (en) | 2023-07-14 | 2023-07-14 | Energy-saving building fresh air device |
Country Status (1)
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CN (1) | CN220648500U (en) |
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2023
- 2023-07-14 CN CN202321854013.6U patent/CN220648500U/en active Active
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