Brush roll and cleaning device

Abstract

The utility model belongs to cleaning equipment technical field discloses a kind of brush roller and cleaning device, the brush roller includes ventilation subassembly and roller assembly, ventilation subassembly includes ventilation sleeve and air pipe, air passage and air inlet hole are set on ventilation sleeve, air pipe is used to connect ventilation sleeve and gas supply device, roller assembly includes support shaft and roller, support shaft is rotatably inserted in one end of ventilation sleeve, roller is rotatably inserted in the other end of ventilation sleeve, air cavity is equipped in roller, roller is set with multiple installation holes for connecting brush and multiple exhaust long holes. Gas discharged through exhaust long hole is washed to brush, to avoid mutual entanglement and extrusion between brush, knot phenomenon occurs, ensure that each area uniform friction cleaning force, guarantee the effect of cleaning, to ensure that glass substrate is in clean state in subsequent process, reduce the probability of occurrence of bad point, improve the yield of product.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a brush roller and cleaning device. Background Technology

[0002] Against the backdrop of the booming development of the modern electronic display industry, glass substrates, as the core basic material for high-end display products such as liquid crystal displays (LCDs) and organic light-emitting diode displays (OLEDs), have their manufacturing process precision directly determining the quality of the final product. Before key processes such as coating and photolithography, the surface of the glass substrate must meet extremely high cleanliness standards. Any tiny impurities, particles, or contaminants can cause defects such as bright spots and dark spots in the display panel, seriously affecting product yield and visual effects. Therefore, the cleaning process of the glass substrate has become a crucial link in the entire production process.

[0003] Currently, the industry widely uses brush cleaning technology to clean the surface of glass substrates. The working principle of soft brush cleaning is based on a combination of physical friction and fluid mechanics. During the cleaning process, the soft brush rotates at high speed driven by a motor, and its soft bristles make full contact with the surface of the glass substrate. Through the mechanical friction of the bristles, dust, oil, particles, and other contaminants attached to the glass surface are peeled off. Simultaneously, the cleaning solution forms a high-speed water flow under the agitation of the bristles. The shearing force generated by the water flow further assists in removing contaminants and washes away the peeled-off impurities. This physical cleaning method can effectively remove most visible contaminants and can meet certain cleaning needs in the initial stages.

[0004] However, due to the extremely stringent cleaning requirements of subsequent processes such as glass substrate coating, the existing soft-bristle brush cleaning process has gradually revealed significant drawbacks. The soft-bristle brushes currently used are made of a relatively soft material. While the flexibility of the bristles helps prevent scratching the glass substrate, it also makes them prone to tangling and knotting when exposed to water, especially during high-frequency cleaning operations lasting about a month. This disrupts the bristle distribution, destroys the originally uniform frictional cleaning force, and weakens or even eliminates cleaning power in some areas, significantly reducing the cleaning effect. Consequently, contaminants on the glass substrate surface cannot be completely removed, and residual impurities will form defects in subsequent coating processes, thus reducing product yield. Utility Model Content

[0005] The purpose of this utility model is to provide a brush roller and cleaning device, which improves the phenomenon of brush bristle tangling, ensures cleaning effect, and improves product yield.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On one hand, a brush roller is provided comprising:

[0008] A ventilation assembly, comprising a ventilation sleeve and an air tube, wherein the ventilation sleeve has an air channel extending along a central axis and an air inlet extending radially and communicating with the air channel; one end of the air tube is connected to the air inlet and the other end of the air tube is connected to an air supply device.

[0009] A roller assembly, comprising a support shaft and a roller, wherein the support shaft is rotatably inserted into one end of the venting sleeve, and the roller is rotatably inserted into the other end of the venting sleeve; the roller has an air cavity communicating with the air channel; and the circumferential surface of the roller is also provided with a plurality of mounting holes for connecting brushes and a plurality of exhaust elongated holes communicating with the air cavity.

[0010] Optionally, a plurality of exhaust elongated holes are evenly distributed around the central axis of the roller, and each exhaust elongated hole has a plurality of mounting holes evenly distributed along the central axis of the roller on both sides along the circumferential direction.

[0011] Optionally, the roller includes a roller body, a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected to both sides of the roller body, the exhaust elongated hole and the mounting hole are both opened on the roller body, the first connecting part is connected to an external driving device, the second connecting part is rotatably inserted into the vent sleeve, and the second connecting part has a communicating channel for connecting the air channel and the air cavity.

[0012] Optionally, the brush roller further includes a first rotating member and a second rotating member, both of which are rotatably disposed on both sides of the vent sleeve along the central axis of the roller. The second connecting portion is inserted into the first rotating member, and the support shaft is inserted into the second rotating member.

[0013] Optionally, the ventilation sleeve has mounting grooves on both sides along the central axis that communicate with the air passage. The inner diameter of the mounting groove is larger than the diameter of the air passage. A limiting step is formed at the junction of the mounting groove and the air passage. Both the first rotating member and the second rotating member can be rotatably placed in the mounting groove and abut against the limiting step.

[0014] Optionally, the second connecting portion is provided with a first limiting protrusion, and the first rotating member is clamped between the first limiting protrusion and the limiting step.

[0015] Optionally, the second connecting portion is provided with a first sealing groove, the first sealing groove corresponding to the first rotating member, and the brush roller further includes a first sealing member, the first sealing member being pressed into the first sealing groove.

[0016] Optionally, the support shaft is provided with a second limiting protrusion, and the second rotating member is clamped between the second limiting protrusion and the limiting step.

[0017] Optionally, the support shaft is provided with a second sealing groove, the second sealing groove corresponding to the second rotating member, and the brush roller further includes a second sealing member, the second sealing member being compressed within the second sealing groove.

[0018] On the other hand, a cleaning apparatus is provided, the cleaning apparatus comprising a brush roller as described in any of the preceding claims.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a brush roller, which connects one end of the roller to a ventilated sleeve with an internal air channel. An air cavity communicating with the air channel is provided inside the roller, and an exhaust elongated hole communicating with the air cavity is opened on the circumferential surface of the roller. This allows the brush roller to simultaneously clean the glass substrate by supplying gas to the ventilated sleeve via an air pipe. The gas passes through the air channel and the air cavity sequentially, finally exiting through the exhaust elongated hole. The gas exiting the exhaust elongated hole cleans the brushes connected in the mounting holes, preventing the brushes from tangling and knotting, ensuring uniform friction and cleaning force in all areas, guaranteeing cleaning effectiveness, and ensuring the glass substrate remains clean during subsequent manufacturing processes. This reduces the probability of defects and improves product yield.

[0021] This invention also provides a cleaning device that, by applying the aforementioned brush roller, improves the phenomenon of brush bristle tangling, reduces the frequency of brush roller replacement and maintenance, and lowers maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly structure of the brush roller provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of the brush roller provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the brush roller provided by this utility model;

[0025] Figure 4 yes Figure 3Enlarged view of the structure of section A;

[0026] Figure 5 This is a schematic diagram of the structure of the ventilation sleeve in the brush roller provided by this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the support shaft in the brush roller provided by this utility model.

[0028] In the picture:

[0029] 1. Ventilation assembly; 11. Ventilation sleeve; 111. Air passage; 112. Air inlet; 113. Mounting groove; 114. Limiting step; 12. Air pipe; 13. Flange;

[0030] 2. Roller assembly; 21. Support shaft; 211. Second limiting protrusion; 212. Second sealing groove; 22. Roller; 221. Mounting hole; 222. Exhaust elongated hole; 223. Roller body; 224. First connecting part; 225. Second connecting part; 226. First limiting protrusion; 227. First sealing groove;

[0031] 3. First rotating component;

[0032] 4. Second rotating component;

[0033] 5. First sealing element;

[0034] 6. Second sealing element. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] To improve the phenomenon of brush bristle tangling, ensure cleaning effect, and increase product yield, this embodiment provides a brush roller.

[0040] Figure 1 This is a structural assembly drawing of the brush roller provided by this utility model; Figure 2 This is a structural exploded view of the brush roller provided by this utility model; Figure 3 This is a schematic diagram of the structure of roller 22 in the brush roller provided by this utility model; as shown Figures 1 to 3 As shown, the brush roller includes a ventilation assembly 1 and a roller assembly 2. The ventilation assembly 1 includes a ventilation sleeve 11 and an air pipe 12. The ventilation sleeve 11 has an air channel 111 extending along the central axis and an air inlet 112 extending radially and communicating with the air channel 111. One end of the air pipe 12 is connected to the air inlet 112, and the other end of the air pipe 12 is connected to an air supply device. The roller assembly 2 includes a support shaft 21 and a roller 22. The support shaft 21 is rotatably inserted into one end of the ventilation sleeve 11, and the roller 22 is rotatably inserted into the other end of the ventilation sleeve 11. The roller 22 has an air cavity communicating with the air channel 111. The circumferential surface of the roller 22 also has a plurality of mounting holes 221 for connecting the brush and a plurality of exhaust elongated holes 222 communicating with the air cavity.

[0041] The brush roller connects one end of the roller 22 to a ventilated sleeve 11 with an internal air channel 111. An air cavity communicating with the air channel 111 is provided inside the roller 22, and an exhaust elongated hole 222 communicating with the air cavity is opened on the circumferential surface of the roller 22. This allows the brush roller to simultaneously clean the glass substrate by supplying gas to the ventilated sleeve 11 through an air pipe 12. The gas passes sequentially through the air channel 111 and the air cavity, finally exiting through the exhaust elongated hole 222. The gas exiting through the exhaust elongated hole 222 washes the brushes connected to the mounting hole 221, preventing the brushes from tangling and knotting, ensuring uniform friction and cleaning force in all areas, guaranteeing the cleaning effect, and ensuring the glass substrate remains clean in subsequent processes. This reduces the probability of defects and improves product yield.

[0042] In this embodiment, the ventilation assembly 1 also includes a flange 13, which is connected to the air pipe 12. By connecting the flange 13 to the air pipe 12, it is convenient to connect the air pipe 12 to the air supply device.

[0043] Optionally, such as Figure 3 As shown, multiple exhaust holes 222 are evenly distributed around the central axis of the roller 22, and each exhaust hole 222 has multiple mounting holes 221 evenly distributed along the central axis of the roller 22 on both sides along the circumferential direction.

[0044] The design of the exhaust holes 222 being evenly distributed around the central axis makes the exhaust process more balanced, improving the exhaust efficiency and stability of the overall structure. The mounting holes 221 evenly distributed on both sides of each exhaust hole 222 along the central axis provide more flexible and symmetrical fixing points for brush installation, enhancing the reliability and convenience of structural assembly. This ensures that the gas discharged from the exhaust holes 222 is evenly applied to each brush during the exhaust process.

[0045] In practical applications, the size, number, and distribution spacing of the exhaust elongated holes 222 can be adjusted according to the exhaust requirements of specific equipment. In this embodiment, the width of the exhaust elongated holes 222 cannot exceed 0.2mm, because if the exhaust elongated holes 222 are too large, the air pressure will be too low. Furthermore, the design of the mounting holes 221 can be adapted to different fastener types (such as bolts, screws, etc.). Anti-loosening structures (such as thread sealant, anti-loosening washers) can also be added to the mounting holes 221 to improve the stability of the connection. In addition, a dustproof net or filter structure can be set on the outside of the exhaust elongated holes 222 to prevent debris from entering the equipment.

[0046] Optionally, such as Figure 3As shown, the roller 22 includes a roller body 223, a first connecting part 224 and a second connecting part 225. The first connecting part 224 and the second connecting part 225 are connected to both sides of the roller body 223. The exhaust elongated hole 222 and the mounting hole 221 are both opened on the roller body 223. The first connecting part 224 is connected to an external drive device. The second connecting part 225 is rotatably inserted into the vent sleeve 11. The second connecting part 225 has a connecting channel for connecting the air channel 111 and the air cavity.

[0047] By dividing the roller 22 into a first connecting part 224, a second connecting part 225, and a roller body 223 with different functions, a reasonable division of structural functions is achieved. The first connecting part 224 is connected to the power component, ensuring the stable driving of the roller 22; the second connecting part 225 cooperates with the vent sleeve 11 and is provided with a connecting channel, so that the gas can flow smoothly and ensure the effectiveness of the airflow during the cleaning process.

[0048] The connection between the first connecting part 224 and the power component can take various forms, such as coupling connection, gear transmission connection, etc., to adapt to different power sources and working conditions. In this embodiment, the first connecting part 224 and the power component are connected by a coupling. For the cooperation between the second connecting part 225 and the vent sleeve 11, different sealing structures can be designed to prevent gas leakage while reducing rotational friction and extending service life.

[0049] Optionally, such as Figure 2 As shown, the brush roller also includes a first rotating member 3 and a second rotating member 4. The first rotating member 3 and the second rotating member 4 are rotatably disposed on both sides of the ventilation sleeve 11 along the central axis of the roller 22. The second connecting part 225 is inserted into the first rotating member 3, and the support shaft 21 is inserted into the second rotating member 4.

[0050] Since the roller 22 needs to rotate under the drive of the power component, the first rotating component 3 is set to ensure that the roller 22 and the ventilation sleeve 11 rotate independently without interfering with each other, and to reduce the frictional resistance of the roller 22 during rotation. The second rotating component 4 is set to allow the ventilation sleeve 11 to rotate independently relative to the support shaft 21, so that the ventilation sleeve 11 can rotate and connect with the air supply device. At the same time, this modular rotating connection method also facilitates the installation, disassembly and maintenance of the equipment, and reduces the later maintenance cost and difficulty.

[0051] In this embodiment, both the first rotating component 3 and the second rotating component 4 are bearings, and the type of bearing can be freely selected according to the working conditions. For example, high-temperature bearings are used in high-temperature environments, and high-precision rotary bearings are used in high-precision equipment. In addition, the structure of the first rotating component 3 and the second rotating component 4 can be optimized, such as by adding a sealing structure to prevent dust and impurities from entering.

[0052] Figure 5 This is a schematic diagram of the structure of the ventilation sleeve 11 in the brush roller provided by this utility model; optionally, as shown... Figure 5 As shown, the ventilation sleeve 11 has mounting grooves 113 on both sides along the central axis that communicate with the air channel 111. The inner diameter of the mounting groove 113 is larger than the diameter of the air channel 111. A limiting step 114 is formed at the junction of the mounting groove 113 and the air channel 111. The first rotating member 3 and the second rotating member 4 can be rotatably placed in the mounting groove 113 and abut against the limiting step 114.

[0053] By providing an installation groove 113 and a limiting step 114 on the vent sleeve 11, a precise installation and positioning space is provided for the first rotating component 3 and the second rotating component 4, facilitating component assembly and ensuring installation accuracy and stability. The limiting step 114 effectively restricts the axial movement of the rotating component, preventing displacement during operation and improving the reliability of the venting assembly 1. Simultaneously, the design of the installation groove 113 having an inner diameter larger than the air channel 111's aperture does not affect the normal ventilation function of the air channel 111, and cleverly achieves the installation and limiting of the rotating component, making the structural layout more compact and reasonable, and optimizing overall space utilization.

[0054] In order to reduce the friction between the first rotating part 3 and the second rotating part 4 and the vent sleeve 11, wear-resistant pads or lubricating coatings can be added at the limiting step 114 to reduce the friction and wear between the first rotating part 3 and the second rotating part 4 and their respective limiting steps 114, and extend their service life; an elastic buffer structure can also be set in the mounting groove 113 to buffer when the rotating part is subjected to impact or vibration, reduce vibration transmission, and improve the stability of equipment operation.

[0055] Optionally, Figure 4 yes Figure 3 Enlarged view of the structure of part A; as shown Figure 4 , Figure 5 As shown, the second connecting part 225 is provided with a first limiting protrusion 226, and the first rotating member 3 is sandwiched between the first limiting protrusion 226 and the limiting step 114.

[0056] The first rotating component 3 is clamped by the first limiting protrusion 226 and the limiting step 114, forming a reliable axial limiting structure. This effectively prevents the first rotating component 3 from moving axially during operation, ensuring the stability and accuracy of its rotation, and thus improving the reliability of the entire ventilation assembly 1. At the same time, this clamping and limiting method has a simple structure, is easy to assemble and disassemble, reduces the difficulty of installation and maintenance, and improves production efficiency.

[0057] Optionally, such as Figure 2 , Figure 4 As shown, the second connecting part 225 has a first sealing groove 227, which corresponds to the first rotating member 3. The brush roller also includes a first sealing member 5, which is pressed into the first sealing groove 227.

[0058] By cooperating with the first sealing groove 227 and the first sealing member 5, an effective sealing structure can be formed between the second connecting part 225 and the first rotating member 3, preventing gas from leaking from the connection gap between the two, ensuring stable gas pressure inside the brush roller, and improving the efficiency and reliability of gas transmission between the air channel 111 and the air cavity.

[0059] In this embodiment, the first sealing element 5 can be made of different materials, such as nitrile rubber, which is suitable for oil-resistant environments, and silicone rubber, which is suitable for high and low temperature environments, to adapt to diverse working scenarios.

[0060] Optionally, Figure 6 This is a schematic diagram of the structure of the support shaft 21 in the brush roller provided by this utility model; as shown Figure 2 , Figure 6 As shown, the support shaft 21 is provided with a second limiting protrusion 211, and the second rotating member 4 is sandwiched between the second limiting protrusion 211 and the limiting step 114.

[0061] By engaging the second limiting protrusion 211 with the limiting step 114 to clamp the second rotating component 4, a stable and reliable axial positioning structure is formed. This effectively restricts the axial movement of the second rotating component 4, preventing it from shifting during operation and ensuring the stability and accuracy of the rotational connection between the support shaft 21 and the second rotating component 4. This, in turn, improves the reliability and safety of the entire equipment operation. Furthermore, this simple clamping and limiting method facilitates the installation and disassembly of components, reducing the difficulty and cost of equipment maintenance.

[0062] Optionally, such as Figure 2 , Figure 6 As shown, the support shaft 21 has a second sealing groove 212, which corresponds to the second rotating member 4. The brush roller also includes a second sealing member 6, which is compressed within the second sealing groove 212.

[0063] By cooperating with the second sealing groove 212 and the second sealing element 6, an efficient sealing system is constructed between the support shaft 21 and the second rotating element 4, which effectively prevents gas from leaking from the connection between the two, ensures the sealing of the air passage inside the brush roller, maintains stable gas pressure, and thus improves the working efficiency and operational stability of the equipment.

[0064] In this embodiment, the second seal 6 can be made of different materials, such as nitrile rubber, which is suitable for oil-resistant environments, and silicone rubber, which is suitable for high and low temperature environments, to adapt to diverse working scenarios.

[0065] In this embodiment, a cleaning device is also provided, which includes the aforementioned brush roller. By using the brush roller, this cleaning device improves the problem of brush bristle tangling, reduces the frequency of brush roller replacement and maintenance, and lowers maintenance costs.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A brush roller, characterized in that, The brush roller includes: Ventilation assembly (1), the ventilation assembly (1) includes a ventilation sleeve (11) and an air pipe (12), the ventilation sleeve (11) is provided with an air channel (111) extending along the central axis and an air inlet (112) extending radially and communicating with the air channel (111), one end of the air pipe (12) is connected to the air inlet (112), and the other end of the air pipe (12) is connected to an air supply device; The roller assembly (2) includes a support shaft (21) and a roller (22). The support shaft (21) is rotatably inserted into one end of the vent sleeve (11), and the roller (22) is rotatably inserted into the other end of the vent sleeve (11). The roller (22) has an air cavity communicating with the air channel (111). The circumferential surface of the roller (22) is also provided with a plurality of mounting holes (221) for connecting brushes and a plurality of exhaust elongated holes (222) communicating with the air cavity.

2. The brush roller according to claim 1, characterized in that, Multiple exhaust holes (222) are evenly distributed around the central axis of the roller (22), and each exhaust hole (222) has multiple mounting holes (221) evenly distributed along the central axis of the roller (22) on both sides along the circumferential direction.

3. The brush roller according to claim 1, characterized in that, The roller (22) includes a roller body (223), a first connecting part (224) and a second connecting part (225). The first connecting part (224) and the second connecting part (225) are connected to both sides of the roller body (223). The exhaust elongated hole (222) and the mounting hole (221) are both opened on the roller body (223). The first connecting part (224) is connected to an external driving device. The second connecting part (225) is rotatably inserted into the vent sleeve (11). The second connecting part (225) has a connecting channel for connecting the air channel (111) and the air cavity.

4. The brush roller according to claim 3, characterized in that, The brush roller also includes a first rotating member (3) and a second rotating member (4). The first rotating member (3) and the second rotating member (4) are rotatably disposed on both sides of the ventilation sleeve (11) along the central axis of the roller (22). The second connecting part (225) is inserted into the first rotating member (3), and the support shaft (21) is inserted into the second rotating member (4).

5. The brush roller according to claim 4, characterized in that, The ventilation sleeve (11) has mounting grooves (113) on both sides along the central axis that communicate with the air channel (111). The inner diameter of the mounting groove (113) is larger than the aperture of the air channel (111). A limiting step (114) is formed at the junction of the mounting groove (113) and the air channel (111). The first rotating member (3) and the second rotating member (4) can be rotatably placed in the mounting groove (113) and abut against the limiting step (114).

6. The brush roller according to claim 5, characterized in that, The second connecting part (225) is provided with a first limiting protrusion (226), and the first rotating member (3) is sandwiched between the first limiting protrusion (226) and the limiting step (114).

7. The brush roller according to claim 6, characterized in that, The second connecting part (225) has a first sealing groove (227), which corresponds to the first rotating member (3). The brush roller also includes a first sealing member (5), which is pressed into the first sealing groove (227).

8. The brush roller according to claim 5, characterized in that, The support shaft (21) is provided with a second limiting protrusion (211), and the second rotating member (4) is sandwiched between the second limiting protrusion (211) and the limiting step (114).

9. The brush roller according to claim 8, characterized in that, The support shaft (21) has a second sealing groove (212) which corresponds to the second rotating member (4). The brush roller also includes a second sealing member (6), which is compressed within the second sealing groove (212).

10. A cleaning device, characterized in that, The cleaning device includes a brush roller as described in any one of claims 1-9.

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