CN219851044U - Finalized protective sheet cleaning device - Google Patents
Finalized protective sheet cleaning device Download PDFInfo
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- CN219851044U CN219851044U CN202321180867.0U CN202321180867U CN219851044U CN 219851044 U CN219851044 U CN 219851044U CN 202321180867 U CN202321180867 U CN 202321180867U CN 219851044 U CN219851044 U CN 219851044U
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- plates
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- protective sheet
- cleaning device
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- 238000004140 cleaning Methods 0.000 title claims abstract description 92
- 230000001681 protective effect Effects 0.000 title claims abstract description 41
- 238000007493 shaping process Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model provides a cleaning device for a shaping protective sheet, and belongs to the technical field of building equipment. The technical proposal is as follows: comprises a track mechanism and a cleaning mechanism arranged on the track mechanism; the track mechanism comprises a rectangular slide rail base, a pair of sliding grooves are formed in the upper surface of the slide rail base, a rectangular magnetic base is arranged on the slide rail base between the sliding grooves on two sides, and a plurality of fixing sheets matched with the shaping protection sheets are arranged on one side, deviating from the middle, of the upper surface of the magnetic base. The beneficial effects of the utility model are as follows: the device can effectively reduce cost, improve the cleaning efficiency of the protective sheet and shorten the turnover time.
Description
Technical Field
The utility model relates to the technical field of building equipment, in particular to a cleaning device for a shaping protective sheet.
Background
Along with the development of construction enterprises, the construction site standardization is changed day by day, and particularly the standardized protective sheet is widely applied to the protection of edges and holes, is safe and can be continuously recycled. However, in the use process, the shaping protective sheet is inevitably dust-collecting and dust-depositing, and the labor and time are consumed for cleaning when the protective sheet is continuously used or turned after being disassembled, so that a large amount of water resources are wasted, and the cost is increased.
Most projects in traditional construction are that a flexible pipe is adopted for flushing, and a shaping protective sheet is manually cleaned.
The device can effectively reduce cost, improve cleaning efficiency of the protective sheet and shorten turnover time.
Disclosure of Invention
The utility model aims to provide a shaping protective sheet cleaning device which is simple to operate and improves the cleaning efficiency of protective sheets.
The utility model is realized by the following measures:
the cleaning device for the shaping protective sheet is characterized by comprising a track mechanism and a cleaning mechanism arranged on the track mechanism;
the track mechanism comprises a rectangular sliding rail base, a pair of sliding grooves are formed in the upper surface of the sliding rail base, a strip-shaped magnetic base is arranged on the sliding rail base between the sliding grooves on two sides, a plurality of fixing sheets matched with the finalization protection sheets are arranged on one side, deviating from the middle, of the upper surface of the magnetic base, the finalization protection sheets are placed on the magnetic base between the fixing sheets during cleaning, and the finalization protection sheets can be prevented from being shifted by the fixing sheets.
The utility model has the specific characteristics that:
the cleaning mechanism comprises a cleaning box, a water pipe mechanism and a roller mechanism, wherein the water pipe mechanism and the roller mechanism are arranged in the cleaning box;
the cleaning box comprises a pair of long sliding plates which are arranged in the sliding grooves in a sliding manner respectively, an electric pulley block is arranged at the bottom of each long sliding plate, the long sliding plates can slide along the sliding grooves through the electric pulley block, in addition, the long sliding plates can be manually controlled in a sliding manner, side plates are arranged on the long sliding plates, the side plates are preferably made of aluminum alloy plates, a plurality of square tubes are arranged between opposite inner side surfaces of the side plates, the side plates are connected into a whole through the square tubes, a plurality of top plates are arranged on the upper surfaces of the square tubes, side edges of the top plates are arranged on the side plates, the square tubes are arranged at positions, close to the upper side edges, of the side plates, of the square tubes are preferably made of zinc-plated square tubes with the length of 5cm multiplied by 5cm, and the square tubes are connected and communicated, and a cleaning frame is formed by the square tubes and the vertical water outlet tubes.
A plurality of upper fixing plates and a plurality of lower fixing plates are arranged on opposite inner side surfaces of the side plates at two sides, the upper fixing plates are transversely arranged on the upper side close to the side plates side by side, the lower fixing plates are transversely arranged on the lower side close to the side plates side by side, the upper fixing plates corresponding to the side plates at two sides are symmetrically arranged, the lower fixing plates corresponding to the side plates at two sides are symmetrically arranged, the upper fixing plates corresponding to the same side are symmetrically arranged with the lower fixing plates, and preferably, the upper fixing plates and the lower fixing plates are made of Q235 steel sheets;
the roller mechanism comprises a plurality of cleaning rollers which are rotatably arranged between the corresponding upper fixing plate and the lower fixing plate, and each cleaning roller comprises a roller and a hairbrush arranged on the outer side face of the corresponding roller.
The water pipe mechanism comprises a transverse water outlet pipe and a vertical water outlet pipe;
the lower surfaces of the upper fixing plates and the upper surfaces of the lower fixing plates are respectively provided with a transverse water outlet pipe, and the transverse water outlet pipes are arranged between the corresponding cleaning rollers and the side plates;
a plurality of vertical water outlet pipes are vertically arranged on the inner side surfaces of the two sides, opposite to the side plates;
the transverse water outlet pipe and the vertical water outlet pipe are made of galvanized square steel pipes with the diameters of 5mm and the lengths of 5cm multiplied by 5mm, and water outlet holes with the diameters of 5mm are formed in one side of the shaping protective sheet, and the distance is 50cm.
The two sides of the slide rail base are provided with a pair of vertical rods, the pair of vertical rods are close to the side edges of the end faces, the pair of slots I are formed in the inner side faces, opposite to the vertical rods, of the vertical rods, matched baffles are arranged in the slots I in a sliding mode, the baffles seal the two ends of the slide rail base and play a limiting role, the baffles can be taken off during cleaning, and the slide rail base is flushed by a water pipe.
The baffle is provided with a plurality of drainage holes, and water in the chute can flow out through the drainage holes.
The two sides the curb plate keep away from be provided with the shrouding between the both sides vertical sides of stationary blade, both sides all be provided with slot two on the relative medial surface of curb plate, both sides slot two is close to both sides the curb plate keep away from shrouding opposite side, both sides slide between slot two and be provided with the breakwater, the breakwater is aluminum alloy material, and by the setting of top-down pulling handle on the breakwater, can insert in the slot, can block the sewage that splashes out after the equipment starts.
The roller mechanism further comprises a transmission system, the transmission system comprises a sprocket arranged on the outer side face of the roller, the sprocket is arranged at the upper end close to the cleaning roller, a plurality of sprockets on the same side relative to the side plates are connected through a chain, matched supporting plates are arranged on the lower sides of the chains on two sides, the supporting plates are fixed on the upper fixing plate, the supporting plates prevent the chains from separating from the sprocket, a first gear is arranged on the upper end of the roller close to one side of the cleaning box after the top plate is penetrated, a motor is arranged on the upper surface of the top plate through a bracket, a second gear meshed with the first gear on one side is arranged at the output end of the motor, a third gear is arranged on the top plate through a rotating shaft, the third gear is meshed with the first gear on the other side, meanwhile, the third gear is meshed with the second gear, the motor is started, the motor drives the second gear to rotate, the first gear and the third gear are further driven to rotate, the third gear drives the first gear to rotate, and the second gear is further driven to rotate through the second chain, and the two sides are driven to rotate, so that the cleaning roller is shaped and a plurality of cleaning sheets are driven to rotate;
the first gear, the second gear, the motor and the periphery of the bracket are provided with a transmission control box.
The cleaning box is characterized in that a water pump control system is arranged on one side of the cleaning box and comprises a water pump control box, a high-pressure water pump and related control keys are arranged in the water pump control box, a transverse water outlet pipe and a vertical water outlet pipe are connected to the high-pressure water pump through hoses, the length of each hose can be adjusted according to actual conditions, after the high-pressure water pump is started, high-pressure water is input into the cleaning box through the hoses, and the high-pressure water is sprayed onto the finalized protective sheet through the water outlet holes.
Working principle: when the cleaning device is used, the shaping protective sheet is placed firstly, then the cleaning box is made to slide through the electric pulley block until the shaping protective sheet is covered on the inside, after the shaping protective sheet reaches a set position, the high-pressure water pump is started again, a high-pressure water column is sprayed through a water outlet hole of the cleaning frame, the shaping protective sheet is washed under the rotation of the cleaning roller, after the cleaning is finished, a drive system retreating key is started, the cleaning box is retreated to the original position, the cleaned shaping protective sheet is taken down, the shaping protective sheet to be cleaned is placed, and the operation is repeated.
The bottom of the cleaning device can be provided with universal wheels, and the cleaning device can be fixed with the ground through expansion screws by welding iron sheets, and the implementation is specific according to project requirements;
the high-pressure water pump can be placed in the reservoir or the water tank according to project requirements, the high-pressure water pump can be started, and the model and the power of the water pump can be replaced according to different project requirements; the starting time can be freely regulated and controlled, so that water resources are saved;
the cleaning time and the cleaning degree depend on the pollution degree of the protective sheet and the responsibility and experience value of cleaning personnel.
The beneficial effects of the utility model are as follows: the device can effectively reduce cost, improve the cleaning efficiency of the protective sheet and shorten the turnover time, and is specifically as follows:
1. the operation is simple and convenient, the cleaning efficiency is high, and the labor is saved;
2. the turnover and repeated use can be carried out;
3. saving water resources.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present utility model.
Fig. 2 is an enlarged view of a in fig. 1.
Fig. 3 is a schematic structural diagram of the embodiment of the present utility model after hiding the side plate.
FIG. 4 is a schematic diagram of related components of a transmission system according to an embodiment of the present utility model.
Wherein, the reference numerals are as follows: 1. a cleaning box; 101. a water baffle; 103. square tubes; 105. a side plate; 106. an upper fixing plate; 107. a transverse water outlet pipe; 108. a vertical water outlet pipe; 109. a lower fixing plate; 2. a slide rail base; 201. a baffle; 203. a chute; 204. a magnetic base; 206. a fixing piece; 3. a transmission control box; 4. a water pump control system; 5. a top plate; 6. a hose; 7. cleaning a roller; 8. shaping the protective sheet; 9. a motor; 10. a second gear; 11. a first gear; 12. a sprocket; 13. a third gear; 14. and (3) a chain.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Referring to fig. 1-4, a cleaning device for a shaping protective sheet comprises a track mechanism and a cleaning mechanism arranged on the track mechanism;
the track mechanism comprises a rectangular slide rail base 2, a pair of sliding grooves 203 are formed in the upper surface of the slide rail base 2, a rectangular magnetic base 204 is arranged on the slide rail base 2 between the sliding grooves 203 on two sides, a plurality of fixing sheets 206 matched with the shaping protection sheets 8 are arranged on one side, deviating from the middle, of the upper surface of the magnetic base 204, the shaping protection sheets 8 are placed on the magnetic base 204 between the fixing sheets 206 during cleaning, and the shaping protection sheets 8 can be prevented from being shifted by the fixing sheets 206.
The cleaning mechanism comprises a cleaning box 1, a water pipe mechanism and a roller mechanism, wherein the water pipe mechanism and the roller mechanism are arranged in the cleaning box 1;
the cleaning box 1 comprises a pair of long sliding plates which are respectively arranged in the sliding grooves 203 in a sliding manner, preferably, an electric pulley block is arranged at the bottom of each long sliding plate, the long sliding plates can slide along the sliding grooves 203 through the electric pulley blocks, in addition, the long sliding plates on the two sides can be controlled by manual pushing and pulling, side plates 105 are preferably made of aluminum alloy plates, a plurality of square tubes 103 are arranged between opposite inner side surfaces of the side plates 105 on the two sides, the side plates 105 on the two sides are connected into a whole by the square tubes 103, a top plate 5 is arranged on the upper surface of the square tubes 103, two side sides of the top plate 5 are arranged on the side plates 105 on the two sides, a plurality of square tubes are arranged at positions, close to the upper side edges, of the side plates 105 side by side, of the square tubes 103 are preferably made of galvanized square tubes 5cm multiplied by 5mm, and are connected and run through, and form a cleaning frame with the transverse water outlet pipes 107 and the vertical water outlet pipes 108.
A plurality of upper fixing plates 106 and a plurality of lower fixing plates 109 are arranged on opposite inner sides of the side plates 105, the plurality of upper fixing plates 106 are transversely arranged on the upper side close to the side plates 105 side by side, the plurality of lower fixing plates 109 are transversely arranged on the lower side close to the side plates 105 side by side, the corresponding upper fixing plates 106 on the side plates 105 are symmetrically arranged, the corresponding lower fixing plates 109 on the side plates 105 are symmetrically arranged, the upper fixing plates 106 and the lower fixing plates 109 on the same side are symmetrically arranged, and preferably, the materials of the plurality of upper fixing plates 106 and the plurality of lower fixing plates 109 are Q235 steel sheets;
the roller mechanism comprises a plurality of cleaning rollers 7, the cleaning rollers 7 are rotatably arranged between the corresponding upper fixing plate 106 and lower fixing plate 109, and the cleaning rollers 7 comprise rollers and brushes arranged on the outer sides of the rollers.
The water pipe mechanism comprises a transverse water outlet pipe 107 and a vertical water outlet pipe 108;
the lower surfaces of the upper fixing plates 106 and the upper surfaces of the lower fixing plates 109 are respectively provided with a transverse water outlet pipe 107, and the transverse water outlet pipes 107 are arranged between the corresponding cleaning rollers 7 and the side plates 105;
a plurality of vertical water outlet pipes 108 are vertically arranged on the opposite inner side surfaces of the side plates 105 at the two sides;
the horizontal water outlet pipe 107 and the vertical water outlet pipe 108 are made of galvanized square steel pipes with the diameters of 5mm and the distances of 50cm, and are arranged on one side of the galvanized square steel pipes facing the shaping protective sheet 8.
A pair of vertical rods are arranged on the end faces of the two sides of the sliding rail base, the side edges of the pair of vertical rods close to the end faces are respectively provided with a slot I, the slots I on the two sides are internally provided with matched baffle plates 201 in a sliding manner, the baffle plates 201 seal the two ends of the sliding rail base 2 and play a limiting role, the bottom baffle plates 201 can be taken off during cleaning, and the sliding rail base 2 is flushed by a water pipe.
The baffle 201 is provided with a plurality of drainage holes, and water in the chute 203 can flow out through the drainage holes.
A sealing plate is arranged between the vertical sides of the two side plates 105 far away from the fixing plate 206, slots II are respectively arranged on the opposite inner sides of the two side plates 105, the slots II are close to the side of the two sides of the two side plates 105 far away from the sealing plate, a water baffle 101 is slidably arranged between the slots II, the water baffle 101 is made of aluminum alloy, a handle 102 arranged on the water baffle 101 is lifted from top to bottom, the water baffle can be inserted into the slots 104, and splashed sewage can be blocked after equipment is started.
The roller mechanism further comprises a transmission system, the transmission system comprises a chain wheel 12 arranged on the outer side surface of the roller, the chain wheel 12 is arranged at the upper end close to the cleaning roller 7, a plurality of chain wheels 12 on the same side relative to the side plate 105 are connected through a chain 14, matched supporting plates are arranged on the lower sides of the two side chains 14 and fixed on an upper fixing plate 106, the supporting plates prevent the chain 14 from separating from the chain wheels 12, a first gear 11 is arranged after the upper end of the two side rollers close to one side of the cleaning box 1 penetrate through the top plate 5, a motor 9 is arranged on the upper surface of the top plate 5 through a bracket, a second gear 10 meshed with the first gear 11 on one side is arranged at the output end of the motor 9, a third gear 13 meshed with the first gear 11 on the other side is arranged on the top plate 5 through a rotating shaft, meanwhile, the third gear 13 is meshed with the second gear 10, the motor 9 is started, the second gear 10 is driven to rotate by the motor 9, the first gear 11 and the third gear 13 is driven to rotate, the first gear 11 on one side is driven, the second gear 11 is further driven to rotate, the first gear 11 on the other side is driven by the two side of the two side chains 14 to rotate the plurality of cleaning rollers 7, and the shaped protection piece 8 is cleaned;
the transmission control box 3 is arranged on the periphery of the first gear 11, the second gear 10, the motor 9 and the bracket.
The cleaning box 1 one side is provided with water pump control system 4, and water pump control system 4 includes the water pump control box, is provided with high-pressure water pump and relevant control button in the water pump control box, and horizontal outlet pipe 107 and vertical outlet pipe 108 are all connected to high-pressure water pump through hose 6, and hose 6 length can be adjusted according to actual conditions, and high-pressure water pump is started the back and is input high-pressure water to cleaning box 1 by hose 6, sprays on shaping protection piece 8 through the apopore.
Working principle: when the cleaning device is used, the shaping protective sheet 8 is placed firstly, then the cleaning box 1 is made to slide through the electric pulley block until the shaping protective sheet 8 is entirely covered inside, after the shaping protective sheet 8 reaches a set position, the high-pressure water pump is started again, the high-pressure water column is sprayed through the water outlet hole of the cleaning frame, the shaping protective sheet 8 is washed under the rotation of the cleaning roller 7, after the cleaning is finished, the transmission system retreating key is started, the cleaning box 1 is retreated to the original position, the clean shaping protective sheet 8 is taken down, the shaping protective sheet 8 to be cleaned is placed, and the operation is repeated.
The bottom of the cleaning device can be provided with universal wheels, and the cleaning device can be fixed with the ground through expansion screws by welding iron sheets, and the implementation is specific according to project requirements;
the high-pressure water pump can be placed in the reservoir or the water tank according to project requirements, the high-pressure water pump can be started, and the model and the power of the water pump can be replaced according to different project requirements; the starting time can be freely regulated and controlled, so that water resources are saved;
the cleaning time and the cleaning degree depend on the pollution degree of the protective sheet and the responsibility and experience value of cleaning personnel.
The technical features of the present utility model that are not described in the present utility model may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be within the scope of the present utility model by those skilled in the art.
Claims (8)
1. The cleaning device for the shaping protective sheet is characterized by comprising a track mechanism and a cleaning mechanism arranged on the track mechanism;
the track mechanism comprises a rectangular sliding rail base (2), a pair of sliding grooves (203) are formed in the upper surface of the sliding rail base (2), a rectangular magnetic base (204) is arranged on the sliding rail base (2) between the sliding grooves (203) on two sides, and a plurality of fixing sheets (206) matched with the shaping protection sheets (8) are arranged on one side, deviating from the middle, of the upper surface of the magnetic base (204).
2. The standardized protective sheet cleaning device according to claim 1, wherein the cleaning mechanism comprises a cleaning tank (1), a water pipe mechanism and a roller mechanism arranged in the cleaning tank (1);
the cleaning box (1) comprises a pair of long sliding plates which are respectively arranged in the sliding grooves (203) in a sliding manner, side plates (105) are arranged on the long sliding plates on two sides, a plurality of square tubes (103) are arranged between opposite inner side surfaces of the side plates (105), the square tubes (103) are connected with the side plates (105) on two sides into a whole, top plates (5) are arranged on the upper surfaces of the square tubes (103), and side edges on two sides of the top plates (5) are arranged on the side plates (105).
3. The cleaning device for the shaping protective sheet according to claim 2, wherein a plurality of upper fixing plates (106) and a plurality of lower fixing plates (109) are arranged on opposite inner sides of the side plates (105) on both sides, the plurality of upper fixing plates (106) are transversely arranged side by side on the upper side close to the side plates (105), and the plurality of lower fixing plates (109) are transversely arranged side by side on the lower side close to the side plates (105);
the roller mechanism comprises a plurality of cleaning rollers (7), the cleaning rollers (7) are rotatably arranged between the corresponding upper fixing plates (106) and the corresponding lower fixing plates (109), and the cleaning rollers (7) comprise rollers and brushes arranged on the outer sides of the rollers.
4. A patterned protective sheet cleaning device according to claim 3, characterized in that the water pipe mechanism comprises a transverse water outlet pipe (107) and a vertical water outlet pipe (108);
the lower surfaces of the upper fixing plates (106) and the upper surfaces of the lower fixing plates (109) are respectively provided with a transverse water outlet pipe (107), and the transverse water outlet pipes (107) are arranged between the corresponding cleaning rollers (7) and the side plates (105);
a plurality of vertical water outlet pipes (108) are vertically arranged on the inner side surfaces of the two opposite side plates (105).
5. The cleaning device for the shaped protective sheet according to claim 1, wherein a pair of vertical rods are arranged on end faces of two sides of the sliding rail base, the pair of vertical rods are close to side edges of the end faces, a first slot is arranged on opposite inner side faces of the pair of vertical rods, and a matched baffle (201) is arranged in the first slot.
6. The cleaning device for the shaping protective sheet according to claim 5, wherein a plurality of drainage holes are formed on the baffle plate (201).
7. The cleaning device for the shaping protective sheet according to claim 2, wherein sealing plates are arranged between vertical sides of two sides of the side plates (105) far away from the fixing plates (206), slots II are respectively arranged on opposite inner sides of the side plates (105), the slots II are close to the side edges of the side plates (105) on two sides far away from the sealing plates, and water blocking plates (101) are slidably arranged between the slots II.
8. A patterned protective sheet cleaning device according to claim 3, characterized in that the roller mechanism further comprises a transmission system, the transmission system comprises a sprocket (12) arranged on the outer side surface of the roller, the sprocket (12) is arranged near the upper end of the cleaning roller (7), a plurality of sprockets (12) on the same side relative to the side plates (105) are connected through a chain (14), gears (11) are arranged near the two sides of one side of the cleaning box (1) after the upper end of the roller penetrates through the top plate (5), a motor (9) is arranged on the upper surface of the top plate (5) through a bracket, a gear (10) meshed with one side of the gears (11) is arranged at the output end of the motor (9), a gear (13) is arranged on the top plate (5) through a rotating shaft, the gear (13) is meshed with the other side of the gears (11), and meanwhile, the gear (13) is meshed with the gears (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321180867.0U CN219851044U (en) | 2023-05-15 | 2023-05-15 | Finalized protective sheet cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321180867.0U CN219851044U (en) | 2023-05-15 | 2023-05-15 | Finalized protective sheet cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219851044U true CN219851044U (en) | 2023-10-20 |
Family
ID=88347344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321180867.0U Active CN219851044U (en) | 2023-05-15 | 2023-05-15 | Finalized protective sheet cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219851044U (en) |
-
2023
- 2023-05-15 CN CN202321180867.0U patent/CN219851044U/en active Active
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