State-adjustable cleaning piece and cleaning set

Abstract

The invention belongs to the technical field of cleaning tools, and particularly relates to a form-adjustable cleaning piece and a cleaning set. The cleaning piece comprises a base material layer, a covering layer and a dust removal fiber layer which are laminated to form a laminated pattern, and a retaining channel is reserved for the insertion strip of the operating handle to insert. The cleaning piece has a full-size state and a half-size state, the cleaning piece is kept unfolded in the full-size state, and a channel is kept through to be matched with a full-size insertion strip, so that the cleaning piece is suitable for large-area cleaning; in the half-size state, the front area is folded backwards to be overlapped with the rear area, the front area is kept by fixing structures such as adhesive pieces, hook-and-loop fasteners or hooks, the cut-off keeping channel is matched with the half-size inserting strip, and fine cleaning of the small area is facilitated. The cleaning set comprises a plurality of cleaning pieces, a full-size operating handle and a half-size operating handle, can be selectively assembled according to scenes, has flexibility, high efficiency and durability, reduces the use cost, and meets the cleaning requirements of families, offices and other scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning tools, and in particular relates to a cleaning sheet with adjustable shape and a cleaning set. Background Art

[0002] With the improvement of modern living standards, people's demand for cleaning home life scenes has been upgraded from basic "surface cleaning" to "fine quality cleaning". More and more users are beginning to pay attention to the health details of the home environment - whether it is dust accumulation in the gaps between floor tiles, cobwebs in the corners of the wall, or dust mites in the gaps between furniture, they have become the focus of cleaning.

[0003] The trend of compact home space and diversified functions has prompted people to put forward higher requirements on the "scene adaptability" and "space utilization efficiency" of cleaning tools: they hope that the tools can flexibly cope with the efficient cleaning of large areas of floors and walls, and also need to take into account the precise processing of small areas such as narrow gaps and corners; they pursue convenience and efficiency in the cleaning process, and pay attention to the storage convenience and environmental protection and economy of the tools themselves.

[0004] However, traditional handheld cleaning tools are usually designed with fixed sizes, and special tools need to be configured for different cleaning scenarios (such as cleaning large areas of the floor and cleaning narrow gaps), which requires users to purchase multiple sets of cleaning products, increasing the cost of use, taking up a lot of storage space when idle, and causing a certain amount of resource waste. At present, the defects of handheld cleaning tools with single functions and insufficient scene adaptability are still far from the convenient life experience that people pursue. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cleaning sheet and a cleaning kit with adjustable shape.

[0006] The purpose of the present invention is to develop and provide a new cleaning product that is adaptable to multiple scenarios and economical, so as to help improve the quality of modern home life.

[0007] The first aspect of the present invention is to provide a cleaning sheet with adjustable shape, comprising a flexible substrate layer, a flexible covering layer arranged on one side of the substrate layer, and a dust-removing fiber layer arranged on the other side of the substrate layer; the substrate layer, the covering layer and the dust-removing fiber layer are pressed together, and the collection of pressed and combined parts constitutes a pressing pattern; the pressing pattern reserves a holding channel extending along the length direction of the cleaning sheet in the gap between the substrate layer and the covering layer, and the rear end of the holding channel has an opening to form an insertion end for the insertion of the insert strip at the front end of the operating handle; the cleaning sheet has a full-size state and a half-size state of different lengths, respectively adapting to the full-size state and the half-size state. The invention provides a full-size operating handle and a half-size operating handle, wherein the front end of the full-size operating handle has a full-size insert, and the front end of the half-size operating handle has a half-size insert; in the half-size state, the half-size insert is inserted into the holding channel, the front area of ​​the cleaning sheet not occupied by the half-size insert is folded backward to overlap with the rear area and held by a fixed structure, and the portion of the holding channel cut off by the folding line is used for inserting and holding the half-size insert; in the full-size state, the cleaning sheet maintains an expanded shape, and the holding channel is not folded and cut off but remains connected in the length direction for inserting and holding the full-size insert.

[0008] As a further optimization solution for the cleaning sheet, the overall length of the cleaning sheet is L0, the length of the front area is L1, preferably 0.35≤L1 / L0≤0.6, more preferably 0.40≤L1 / L0≤0.55. In the full-size state, the length of the holding channel in the front area occupied by the full-size insert is L2, preferably L2 / L1≥0.75, more preferably L2 / L1≥0.80.

[0009] As a further optimization scheme for the cleaning sheet, the fixing structure includes at least one adhesive sheet arranged on the surface of the covering layer, the adhesive sheet is arranged on at least one side of the folding line, and the front area is folded backward and fixed to the rear area through the adhesive sheet.

[0010] As a further optimization scheme for the cleaning sheet, the fixing structure includes a Velcro assembly arranged on the surface of the covering layer, the Velcro assembly includes a hook patch and a fleece patch symmetrically arranged along the folding line, and after the front area is folded backwards, the hook patch and the fleece patch are hooked together to achieve fixation.

[0011] As a further optimization solution for the cleaning sheet, the fixing structure includes at least one hook arranged at the root of the half-size insert and at least one hanging hole correspondingly opened at the front end of the front area; after the front area is folded backward, the hook is engaged with the hanging hole to achieve fixation.

[0012] As a further optimization scheme for the cleaning sheet, the pressing pattern includes a central pressing line extending along the length direction of the cleaning sheet and a pressure point array distributed on both sides of the central pressing line; the central pressing line intersects with the fibers of the dust removal fiber layer so that the fibers spread out to both sides along the central pressing line; the pressure point array includes a plurality of pressing points arranged at intervals to divide the spread fibers into fiber bundles of different lengths; two retaining channels are formed between the pressure point arrays on both sides and the central pressing line, and the retaining channels form a plug-in fit with a pair of full-size inserts of the full-size operating handle in the full-size state, and form a plug-in fit with a pair of half-size inserts of the half-size operating handle in the half-size state.

[0013] As a further optimization scheme for the cleaning sheet, the pressing pattern also includes at least one anti-slip limit point located on the central pressing line; the longitudinal side edges of the full-size insert are provided with anti-slip protrusions that cooperate with the anti-slip limit point, and the longitudinal side edges of the half-size insert are also provided with anti-slip protrusions that cooperate with the anti-slip limit point; when the full-size insert or the half-size insert is inserted into the retaining channel, the interference fit between the anti-slip protrusion and the anti-slip limit point forms an axial limit.

[0014] As a further optimization scheme for the cleaning sheet, a foldable extension portion is provided at the rear end of the covering layer, and the foldable extension portion is folded back along the insertion direction to form a double-layer overlapping area. A reinforcing structure composed of continuous embossed strips is formed in the double-layer overlapping area by a lamination pattern; the embossed strips are extended along the opening edge of the retaining channel to strengthen the opening portion.

[0015] As a further optimization solution for the cleaning sheet, the rear end edge of the substrate layer exceeds the rear end edge of the covering layer to form an open visual area between the two rear end edges, and the missing boundary of the covering layer in the open visual area forms a visual guide mark for maintaining the insertion end of the channel.

[0016] As a further optimization scheme for the cleaning sheet, both side edges of the substrate layer and the covering layer are cut to form a plurality of cutting lines, and the substrate layer and the covering layer materials between adjacent cutting lines form cleaning strips, and the cleaning strips and the fiber bundles of the dust removal fiber layer constitute a three-dimensional cleaning system.

[0017] A second aspect of the present invention is to provide a cleaning kit, comprising a plurality of any of the above-mentioned cleaning sheets, at least one full-size operating handle and at least one half-size operating handle; the full-size operating handle and the half-size operating handle are respectively configured with full-size inserts and half-size inserts that are compatible with the retaining channels of the cleaning sheets, and the full-size operating handle and the half-size operating handle can be selectively assembled with the cleaning sheets according to the requirements of the cleaning scene.

[0018] Beneficial Effects The morphology-adjustable cleaning sheet provided by the present invention innovatively realizes the free conversion between full-size and half-size states in the retaining channel structure through the lamination design of the substrate layer, the covering layer and the dust removal fiber layer. When in the full-size state, the through retaining channel can be adapted to the full-size insert, so that the cleaning sheet can be unfolded into a large-size form, which is suitable for large-area cleaning scenes such as floors and walls, or deep into narrow gaps; when switching to the half-size state, the front area is folded and overlapped with the rear area, and only the channel part adapted to the half-size insert is retained, forming a short-sized, easy-to-grip structure to meet the fine cleaning needs of small areas such as corners and gaps. This "one piece for two uses" design significantly improves the adaptability of the cleaning sheet to different cleaning scenes through the folding structure and plug-in coordination, avoiding the tediousness of equipping special cleaning tools for different scenes separately, and at the same time ensures that the three layers of materials are tightly combined through the lamination process, thereby enhancing the structural strength and durability of the cleaning sheet.

[0019] In addition, through the optimization of fiber distribution through lamination patterns, multiple fixed structure options and three-dimensional cleaning system design, a multifunctional and highly compatible cleaning solution is formed. The pressure point array and the central pressure line cooperate to form a gradient cleaning structure in the fiber layer, taking into account both large particle adsorption and gap cleaning; multi-mode fixing mechanisms such as Velcro and adhesive sheets enhance the reliability of the folded state; the foldable extension and embossed strips enhance the durability of the opening and extend the service life; the cleaning strips formed by the cutting lines work synergistically with the fiber layer to enhance the ability to remove stubborn stains. With the configuration of the modular cleaning set, users can quickly switch the handle and cleaning sheet combination according to the scene requirements to achieve full coverage cleaning from the ground to the gap, combining high efficiency, economy and ease of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side view of a cleaning sheet.

[0021] Figure 2 It is a top view of the substrate layer.

[0022] Figure 3 A top view of the covering layer.

[0023] Figure 4 A top view of the pressed pattern.

[0024] Figure 5 A top view of the cleaning sheet.

[0025] Figure 6 A top view of the full-size operating handle.

[0026] Figure 7 A top view of the half-size operating handle.

[0027] Figure 8 Schematic diagram of the coordination between the cleaning sheet and the full-size operating handle.

[0028] Fig. 9 A side view of the cleaning sheet in a half-size state.

[0029] Fig.10 Schematic diagram of the cooperation between the cleaning sheet with adhesive sheet and the half-size operating handle.

[0030] Fig.11 It is a schematic diagram of the coordination between the cleaning sheet with Velcro and the half-size operating handle.

[0031] Fig.12 It is a schematic diagram of the cooperation between the cleaning sheet with hanging structure and the half-size operating handle.

[0032] Fig.13 is a side view of a cover layer with a foldable extension.

[0033] Fig.14 A top view of a cover layer having a foldable extension.

[0034] In the figure, 1, substrate layer; 2, covering layer; 3, dust removal fiber layer; 4, lamination pattern; 5, holding channel; 7, cleaning strip; 21, foldable extension; 41, central pressure line; 42, pressure point array; 43, anti-slip limit point; 44, embossed strip; 61, front area; 62, rear area; 63, fold line; 81, adhesive sheet; 83, hook surface patch; 84, fleece surface patch; 85, hook; 86, hanging hole; 91, full-size insert; 92, half-size insert; 93, anti-slip protrusion; 99, handle. DETAILED DESCRIPTION

[0035] The present invention is further illustrated by the following examples, which are intended to more clearly illustrate the technical solution of the present invention and should not be construed as a limitation.

[0036] like Figures 1 to 5 As shown, the cleaning sheet mainly includes three parts of materials, including a base layer 1 located in the middle, a covering layer 2 covering one side of the base layer 1 , and a dust removal fiber layer 3 covering the other side of the base layer 1 .

[0037] The substrate layer 1 and the cover layer 2 are preferably made of flexible thin layer materials, such as non-woven fabrics or fiber composite sheets with good toughness, to provide basic structural strength for the cleaning sheet so that the cleaning sheet is not easily damaged during use. The dust removal fiber layer 3 is composed of a large number of bundled fibers, which can effectively absorb dirt such as dust and hair, and is the main source for achieving the cleaning function.

[0038] The base layer 1, the cover layer 2 and the dust removal fiber layer 3 are pressed together by a pressing process such as heat pressing or ultrasonic pressing. The pressing can be done in one step or in multiple steps. The collection of pressed parts constitutes a pressing pattern 4. The pressing pattern 4 reserves a holding channel 5 extending along the length direction of the cleaning sheet between the base layer 1 and the cover layer 2. The rear end of the holding channel 5 has an opening to form an insertion end for inserting the insert strip at the front end of the operating handle.

[0039] The cleaning sheet has multiple use states, including a full-size state with a longer length and a half-size state with a shorter length, which can be selected according to the needs of the cleaning scene. Figure 6 The full-size operating handle shown is suitable for use with the half-size cleaning sheet as shown. Figure 7 The half-sized operating handle shown is adapted. The full-sized operating handle has a handle 99 with a long full-sized insert 91 at the front end of the handle 99; the half-sized operating handle also has a handle 99 with a short half-sized insert 92 at the front end of the handle 99.

[0040] Figure 1 The figure shows the full-size state of the cleaning sheet. At this time, the cleaning sheet maintains the unfolded state, and the channel 5 is not folded and cut off but remains through in the length direction, so that the full-size insert 91 can be inserted and maintained, forming a Figure 8 The cleaning sheet in this state is long and thin, and can be used in scenarios where a large cleaning area is required, such as cleaning large areas such as floors and walls, and can also be used to extend into narrow gaps for cleaning, such as gaps in furniture.

[0041] Fig. 9 The cleaning sheet is shown in the half-size state. At this time, the half-size insert 92 can be placed in the holding channel 5, and the front area 61 of the cleaning sheet not occupied by the half-size insert 92 is folded back to overlap with the rear area 62 and is held by a fixed structure to ensure the stability of the folded state. During the folding process, the holding channel 5 is cut off by the folding line 63, and only the channel part in the rear area 62 is retained for inserting and holding the half-size insert 92. The cleaning sheet in this state is short in length, more flexible to hold, easy to control accurately, and has abundant cleaning fibers on both sides and not on the sides, which is suitable for small-area fine cleaning scenes such as corners and gaps.

[0042] As mentioned above, this structure in which a cleaning sheet can be flexibly converted between full-size and half-size states, by adapting to operating handles of different specifications, enables the cleaning sheet to meet the needs of efficient cleaning of large areas as well as cope with the scenarios of fine cleaning of small areas, significantly improving the scene adaptability and usage efficiency of the cleaning tool.

[0043] The overall length of the cleaning sheet is L0, and the length of the front area 61 is L1. The ratio of the front area 61 to the overall length preferably satisfies 0.35≤L1 / L0≤0.6, and in a more preferred solution, the ratio is further limited to 0.40≤L1 / L0≤0.55. For example, in some embodiments, when the overall length L0 of the cleaning sheet is 30 cm, the length L1 of the front area 61 can be preferably designed to be 10.5 cm to 18 cm, and more preferably 12 cm to 16.5 cm. The ratio range of L1 / L0 balances the compactness of the folding structure and the adaptability of the operating handle, while reducing the size of the cleaning sheet and maintaining sufficient insert clamping length. In addition, in the full-size state, the length of the holding channel 5 of the front area 61 occupied by the full-size insert 91 is L2, and its ratio to L1 must satisfy L2 / L1≥0.75. For example, in some embodiments, when L1 is 15 cm, L2 is at least 11.25 cm. This ratio ensures that the full-size insert 91 can occupy most of the length of the front area 61 to maintain the channel 5 after being inserted, thereby avoiding loosening or falling off of the connection due to insufficient insertion depth of the insert.

[0044] When the cleaning sheet is in the half-size state, it needs to be kept stable in the folded state by a fixing structure. Fig.10 As shown, in some embodiments, the fixing structure uses an adhesive sheet 81 to achieve folding and fixing. At least one adhesive sheet 81 is provided on the surface of the cover layer 2, and the adhesive sheet 81 is provided on at least one side of the folding line 63. After the front area 61 is folded back, it is bonded and fixed to the rear area 62 through the adhesive sheet 81. For example, two rectangular adhesive sheets 81 are arranged at a distance of 3-5 mm between the surface of the cover layer 2 and the folding line 63, and the length direction of the adhesive sheet 81 is perpendicular to the folding line 63. When the cleaning sheet needs to be switched to a half-size state, the release film on the surface of the adhesive sheet 81 is peeled off, and the front area 61 is folded back 180° along the folding line 63. At this time, the adhesive sheet 81 contacts the surface of the cover layer 2 in the rear area 62 and generates an adhesive force, forming a stable double-layer folding structure. The structure achieves folding and fixing through simple pressure-sensitive bonding, which is convenient to operate and low in cost.

[0045] like Fig.11As shown, in some other embodiments, the fixing structure includes a Velcro assembly disposed on the surface of the covering layer 2, and the Velcro assembly includes a hook patch 83 and a fleece patch 84 symmetrically arranged along the folding line 63. After the front area 61 is folded back, the hook patch 83 and the fleece patch 84 are mutually hooked to achieve fixation. For example, two groups of Velcro assemblies are symmetrically arranged within a range of 20 mm on both sides of the folding line 63 on the surface of the covering layer 2: the hook patch 83 has a size of 100 mm × 5 mm and is fixed to the covering layer 2 in the front area 61; the fleece patch 84 has a size of 150 mm × 5 mm and is fixed to the covering layer 2 in the rear area 62. When the folding operation is performed, the hook patch 83 contacts the fleece patch 84, and a reversible mechanical lock is formed by the mutual nesting of the hook and fleece fibers. This mechanical fixing method that can be repeatedly opened and closed facilitates the rapid adjustment of the folding state, and is particularly suitable for scenes that require frequent switching of the use state. In addition, the difference in hook and hair area gives a certain tolerance for folding deviation; the Velcro component relies on the nesting of hook and hair fibers to enhance the structural support of the folding part of the cleaning sheet, making the overall shape more upright and improving the rigidity and stability during operation.

[0046] like Fig.12 As shown, in some other embodiments, the fixing structure includes at least one hook 85 provided at the root of the half-size insert 92, and at least one hanging hole 86 correspondingly opened at the front end of the front area 61; after the front area 61 is folded back, the hook 85 and the hanging hole 86 are engaged to achieve fixation. The hook 85 can be integrally injection molded at the root of the half-size insert 92, or assembled at the root of the half-size insert 92 through a snap-fit ​​structure, and the hanging hole 86 of the front area 61 can be formed by stamping. The mechanical snap connection between the hook 85 and the hanging hole 86 also has high connection strength and durability.

[0047] like Figure 4 and Figure 5As shown, the pressing pattern 4 includes a central pressing line 41 extending along the length direction of the cleaning sheet and a pressing point array 42 distributed on both sides of the central pressing line 41. The central pressing line 41 is a continuous linear pressing structure that runs through the length direction of the cleaning sheet. It intersects with the fiber orientation of the dust-removing fiber layer 3, and during the pressing process, the fiber bundles that were originally neatly arranged are spread out to both sides along the central pressing line 41. This spread structure effectively increases the fluffiness and surface area of ​​the dust-removing fiber layer 3, allowing the fiber bundles to more fully contact the cleaning surface and improve the adsorption capacity of dirt such as dust and hair. The pressing point array 42 includes a plurality of pressing points arranged at intervals, each of which is a circular, polygonal, or irregular shape that can form a local pressing area and is evenly distributed on both sides of the central pressing line 41. These pressing points further divide the spread fiber bundles into fiber units of different lengths. The fiber bundles close to the central pressing line 41 are longer, forming a fluffy main cleaning area; the fiber bundles close to the edge of the cleaning sheet are shorter, forming a delicate edge cleaning area. This differentiated fiber distribution design allows the cleaning sheet to quickly remove dust over a large area through long fiber bundles, and to penetrate deep into gaps for fine cleaning using short fiber bundles, thus building a three-dimensional and efficient cleaning system.

[0048] In terms of structural layout, two parallel holding channels 5 are formed between the pressure point arrays 42 on both sides and the central pressure line 41. The two holding channels 5 extend along the length direction of the cleaning sheet, and the cross-sectional width thereof is adapted to the size of the insert strip of the operating handle: in the full-size state, the two holding channels 5 remain connected after the cleaning sheet is unfolded, and a pair of full-size insert strips 91 at the front end of the full-size operating handle can be inserted at the same time, and the insert strips fit tightly with the inner wall of the channel to form a stable plug-in fit; in the half-size state, after the front area 61 is folded, only the holding channel 5 of the rear area 62 is retained, and at this time, the two channels can adapt to a pair of half-size insert strips 92 of the half-size operating handle, ensuring that insert strips of different specifications can be reliably fixed.

[0049] like Figures 6 to 8 and Figures 10 to 12As shown, the pressing pattern 4 also includes at least one stop limit point 43 located on the central pressing line 41, and the stop limit point 43 can be set as a local point-shaped pressing area; the longitudinal side of the full-size insert 91 is provided with an anti-slip protrusion 93 that matches the stop limit point 43, and the longitudinal side of the half-size insert 92 is also provided with an anti-slip protrusion 93 that matches the stop limit point 43; when the full-size insert 91 or the half-size insert 92 is inserted into the retaining channel 5, the interference fit between the anti-slip protrusion 93 and the stop limit point 43 forms an axial limit, which prevents the cleaning sheet from loosening during use. The anti-slip protrusion 93 on the full-size insert 91 and the half-size insert 92 is set at a position matching the stop limit point 43, and the anti-slip protrusion 93 on the full-size insert 91 and the half-size insert 92 can correspond to the same stop limit point 43, or to a different stop limit point 43. The figure illustrates the situation of corresponding to different stop limit points 43.

[0050] In some embodiments, Fig.13 and Fig.14 As shown, the rear end of the cover layer 2 is provided with a foldable extension 21, which is folded back along the insertion direction to form a double-layer superimposed area, preferably folded toward one side of the substrate layer 1. A reinforcement structure consisting of a continuous embossed strip 44 is formed in the double-layer superimposed area by the lamination pattern 4; the embossed strip 44 is arranged along the opening edge of the holding channel 5 to strengthen the opening part. By providing the foldable extension 21 and forming the above-mentioned reinforcement structure, the durability of the opening part of the holding channel 5 can be significantly improved. During the insertion or extraction process of the plug of the operating handle, the opening part maintains a stable shape due to the reinforcement, ensuring that the plug can be smoothly inserted and firmly fixed in the holding channel 5, and can also adapt to multiple insertion and extraction operations, and is not prone to deformation, tearing or wear. In addition, the cooperation between the double-layer superimposed area and the embossed strip 44 can also enhance the overall rigidity of the rear end of the cleaning sheet to a certain extent, so that the cleaning sheet tends to maintain its original shape during use and maintains the overall cleaning effect.

[0051] In some embodiments, Figure 1 and Figure 5As shown, at the rear edge of the cleaning sheet, the rear edge of the substrate layer 1 extends outward (i.e., the opening direction of the holding channel 5) by a certain length compared to the rear edge of the covering layer 2, so that the two form a dislocation structure. The area between the two rear edges that is not completely covered by the covering layer 2 forms an open visual area. In the open visual area, the edge of the covering layer 2 is not flush with the edge of the substrate layer 1, but forms a missing boundary on the substrate layer 1, thereby forming a clear visual contrast. This can provide an intuitive visual guide for the insertion of the operating handle insert. When the user needs to insert the insert into the holding channel 5, the position of the insertion end can be clearly identified through the open visual area. For example, in a dark or narrow cleaning scene, the user can quickly align the insertion end without repeatedly adjusting the angle, which significantly improves the assembly efficiency of the cleaning sheet and the operating handle. At the same time, the structure of the open visual area does not add additional components, and only realizes the function through edge dislocation and material exposure, which reduces costs while ensuring the reliability and durability of the guide mark. In addition, the colors and materials of the exposed substrate layer 1 and the covering layer 2 can also be set to have obvious differences, forming a more eye-catching guiding mark to avoid operational inconvenience or damage caused by blindly searching for the insertion position.

[0052] like Figure 2 , Figure 3 and Figure 5 As shown, a number of cutting lines are evenly processed on the edges of both sides of the base layer 1 and the covering layer 2 of the cleaning sheet by cutting, mechanical punching and other processes. These cutting lines extend along the width direction of the cleaning sheet and form a certain angle (for example, vertical or inclined) with the length direction of the cleaning sheet. The materials of the base layer 1 and the covering layer 2 retained between adjacent cutting lines naturally form a strip or tooth-like structure that spreads out to both sides, that is, the cleaning strip 7. The end of the cleaning strip 7 is flush with or slightly offset from the end of the fiber bundle of the dust-removing fiber layer 3, and the two together form a three-dimensional cleaning system on both sides of the cleaning sheet. The fiber bundle of the dust-removing fiber layer 3 absorbs light dirt such as dust and hair through a fluffy bundle structure, while the cleaning strip 7, with its rigid or semi-rigid strip-shaped protrusions, forms mechanical friction and scraping effects on stubborn stains on cleaning surfaces such as the ground and walls, and dust accumulated in gaps. For example, when the cleaning sheet wipes the gap between tiles, the cleaning strip 7 can penetrate deep into the gap and peel off the dirt through physical contact, while the fiber bundle simultaneously absorbs the peeled dirt. The two work together to achieve a better cleaning effect and avoid secondary pollution.

[0053] The present invention further provides a cleaning kit, including a plurality of cleaning sheets of any of the above items, at least one full-size operating handle and at least one half-size operating handle; the full-size operating handle and the half-size operating handle are respectively configured with a full-size insert 91 and a half-size insert 92 that are compatible with the holding channel 5 of the cleaning sheet, and the full-size operating handle and the half-size operating handle can be selectively assembled with the cleaning sheet according to the requirements of the cleaning scene. When a large area needs to be cleaned, the user can take out the cleaning sheet in the unfolded state, fully insert the full-size insert 91 along the open end of the holding channel 5, and use the through channel structure to achieve a stable connection. At this time, the dust removal fiber layer 3 of the cleaning sheet is fully spread out to contact the cleaning surface over a large area, which is suitable for scenes such as the floor and walls. When small areas such as corners and gaps need to be finely cleaned, the front area 61 of the cleaning sheet can be folded backwards and fixed to the rear area 62 through a fixing structure to form a half-size state. During the folding process, a folding line 63 is naturally formed, and the half-size insert 92 is inserted into the holding channel 5 after being cut off by the folding line 63. The design of the short insert makes the handle more flexible to hold, which is convenient for precise control of the cleaning position. The cleaning kit achieves multi-scene adaptation and switching through modular design. Users can freely assemble it according to actual cleaning tasks, avoiding the need to equip special cleaning tools for different scenes, reducing the cost of use while improving the tool utilization rate. In addition, the configuration of multiple cleaning sheets allows users to replace the dirty cleaning sheets in time during the cleaning process to maintain the continuity of the cleaning effect, which is especially suitable for cleaning needs in multiple scenes such as home and office.

[0054] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the present invention so that people familiar with the technology in this field can understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning sheet with adjustable shape, characterized in that: The cleaning sheet comprises a flexible substrate layer (1), a flexible covering layer (2) arranged on one side of the substrate layer (1), and a dust-removing fiber layer (3) arranged on the other side of the substrate layer (1); the substrate layer (1), the covering layer (2), and the dust-removing fiber layer (3) are pressed together, and a collection of pressed-together parts constitutes a pressed pattern (4); the pressed pattern (4) reserves a retaining channel (5) extending along the length direction of the cleaning sheet in the gap between the substrate layer (1) and the covering layer (2), and the retaining channel (5) has an opening at the rear end to form an insertion end for inserting an insert strip at the front end of an operating handle; the cleaning sheet has a full-size state and a half-size state of different lengths, respectively adapted to fit a full-size operating handle and a half-size operating handle. The operating handle is a full-size operating handle with a full-size insert (91) at the front end, and the operating handle is a half-size operating handle with a half-size insert (92) at the front end. In the half-size state, the holding channel (5) is internally inserted with the half-size insert (92). The front area (61) of the cleaning sheet not occupied by the half-size insert (92) is folded backwards to overlap with the rear area (62) and is held by a fixed structure. The portion of the holding channel (5) cut off by the folding line (63) is used to insert and hold the half-size insert (92). In the full-size state, the cleaning sheet maintains an expanded configuration, the holding channel (5) is not folded and cut off, and remains continuous in the length direction, and is used to insert and hold the full-size insert (91).

2. The shape-adjustable cleaning sheet according to claim 1, characterized in that: The overall length of the cleaning sheet is L0, the length of the front region (61) is L1, and 0.40≤L1 / L0≤0.55; in the full-size state, the length of the holding channel (5) of the front region (61) occupied by the full-size insert (91) is L2, and L2 / L1≥0.

75.

3. The shape-adjustable cleaning sheet according to claim 1, characterized in that: The fixing structure comprises at least one adhesive sheet (81) arranged on the surface of the covering layer (2), the adhesive sheet (81) being arranged on at least one of the two sides of the folding line (63), and the front area (61) being bonded and fixed to the rear area (62) via the adhesive sheet (81) after being folded backwards.

4. The shape-adjustable cleaning sheet according to claim 1, characterized in that: The fixing structure comprises a Velcro assembly arranged on the surface of the covering layer (2), the Velcro assembly comprising a hook patch (83) and a fleece patch (84) symmetrically arranged along the folding line (63), and after the front area (61) is folded backwards, fixation is achieved by the mutual engagement of the hook patch (83) and the fleece patch (84).

5. The shape-adjustable cleaning sheet according to claim 1, characterized in that: The fixing structure comprises at least one hook (85) provided at the root of the half-size insert (92), and at least one hanging hole (86) correspondingly opened at the front end of the front region (61); after the front region (61) is folded backwards, the hook (85) and the hanging hole (86) are engaged with each other to achieve fixation.

6. The shape-adjustable cleaning sheet according to any one of claims 1 to 5, characterized in that: The pressing pattern (4) comprises a central pressing line (41) extending along the length direction of the cleaning sheet and a pressing point array (42) distributed on both sides of the central pressing line (41); the central pressing line (41) intersects with the fibers of the dust removal fiber layer (3), so that the fibers spread out to both sides along the central pressing line (41); the pressing point array (42) comprises a plurality of pressing points arranged at intervals, so as to divide the spread fibers into fiber bundles of different lengths; two retaining channels (5) are formed between the pressing point arrays (42) on both sides and the central pressing line (41); the retaining channels (5) are plug-fitted with a pair of full-size inserts (91) of a full-size operating handle in a full-size state, and are plug-fitted with a pair of half-size inserts (92) of a half-size operating handle in a half-size state.

7. The shape-adjustable cleaning sheet according to claim 6, characterized in that: The pressing pattern (4) further comprises at least one anti-slip limit point (43) located on the central pressing line (41); the longitudinal side edge of the full-size insert (91) is provided with an anti-slip protrusion (93) matching with the anti-slip limit point (43); the longitudinal side edge of the half-size insert (92) is also provided with an anti-slip protrusion (93) matching with the anti-slip limit point (43); when the full-size insert (91) or the half-size insert (92) is inserted into the retaining channel (5), the interference fit between the anti-slip protrusion (93) and the anti-slip limit point (43) forms an axial limit.

8. The shape-adjustable cleaning sheet according to claim 6, characterized in that: The rear end of the covering layer (2) is provided with a foldable extension portion (21), the foldable extension portion (21) being folded back along the insertion direction to form a double-layer overlapping region, wherein a reinforcement structure consisting of a continuous embossed strip (44) is formed in the double-layer overlapping region through a embossing pattern (4); the embossed strip (44) is extended along the opening edge of the retaining channel (5) to strengthen the opening portion.

9. The shape-adjustable cleaning sheet according to claim 8, characterized in that: The rear end edge of the substrate layer (1) exceeds the rear end edge of the covering layer (2), forming an open visual area between the two rear end edges, and the missing boundary of the covering layer (2) in the open visual area forms a visual guide mark for the insertion end of the retention channel (5).

10. A cleaning kit, characterized in that: The cleaning sheet comprises a plurality of cleaning sheets as claimed in any one of claims 1 to 9, at least one full-size operating handle and at least one half-size operating handle; the full-size operating handle and the half-size operating handle are respectively provided with a full-size insert (91) and a half-size insert (92) adapted to a holding channel (5) of the cleaning sheet, and the full-size operating handle and the half-size operating handle can be selectively assembled with the cleaning sheet according to the requirements of the cleaning scene.

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