duster

Abstract

This utility model belongs to the field of cleaning tools, specifically relating to a duster. It includes: a handle; a duster head installed at one end of the handle; and a sleeve, telescopically mounted on the handle. The sleeve has a retracted state with the duster head exposed and an extended state with the duster head retracted inside the sleeve. Because of the telescopic sleeve on the handle, this utility model allows the sleeve to switch between these two states: a retracted state with the duster head exposed and an extended state with the duster head retracted inside the sleeve. Applying force to the sleeve during use allows for convenient switching between the two states. When not in use, the sleeve can be pulled out to store the duster head, facilitating storage. The duster head retracted inside the sleeve also provides dust protection when not in use.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning tools, specifically relating to a duster. Background Technology

[0002] Dust dusters are common cleaning tools. Existing dust dusters have a simple structure, typically consisting of a handle and bristles located at the far end of the handle, which are used to remove dust. Because the bristles of existing dust dusters are usually made of materials such as feathers or cotton wool, the dust duster has a large volume when the bristles are spread out, making it inconvenient to store. In addition, because the duster head is exposed, dust tends to accumulate when not in use, affecting the dust removal effect. Summary of the Invention

[0003] To solve the above problems, this utility model provides a duster that is easy to store.

[0004] The present invention adopts the following technical solution:

[0005] A duster, characterized by comprising: a handle; a dust head mounted on one end of the handle; and a sleeve telescopically disposed on the handle; wherein the sleeve has a retracted state with the dust head exposed and an extended state with the dust head internally housed within the sleeve; the sleeve comprises j segments, the (i+1)th segment being slidably fitted onto the ith segment, wherein j≥2, 1≤i<j, and i and j are both integers.

[0006] Furthermore, the duster proposed in this utility model may also have the following features: the end of the sleeve closer to the handle is the proximal end, the end of the sleeve farther from the handle is the distal end, the distal end of the sleeve protrudes outward to form an outer convex edge, the proximal end of the sleeve protrudes inward to form an inner convex edge, and the inner convex edge of the (i+1)th sleeve is fastened to the outside of the outer convex edge of the i-th sleeve.

[0007] Furthermore, the duster proposed in this utility model may also have the following feature: the inner wall of the nth sleeve is provided with an inner convex ring at intervals on one side of the inner convex edge, the interval between the inner convex ring and the inner convex edge is adapted to the thickness of the outer convex edge of the (n-1)th sleeve, and the inner convex ring has an arc-shaped surface; wherein, n>1.

[0008] Furthermore, the duster proposed in this utility model may also have the following features: the proximal end of the m-th sleeve protrudes outward to form an outer flange; an outer convex ring is formed on the outer peripheral surface of the m-th sleeve near the outer flange; the interval between the outer convex ring and the outer flange is adapted to the thickness of the inner convex edge of the (m+1)-th sleeve; and the outer convex ring has an arc-shaped surface; wherein, m < j.

[0009] Furthermore, the duster proposed in this utility model may also have the following features: the handle has a fixing part, the sleeve includes a first sleeve, the first sleeve is slidably sleeved on the outer side of the distal end of the fixing part, the distal end of the fixing part protrudes outward to form a distal limiting protrusion, and the inner protrusion of the first sleeve is fastened to the outer side of the distal limiting protrusion.

[0010] Furthermore, the duster proposed in this utility model may also have the following features: the proximal side of the far limiting convex edge also has a far limiting convex ring, the interval between the far limiting convex edge and the far limiting convex ring is adapted to the inner convex edge of the first sleeve, and the far limiting convex ring has an arc-shaped surface.

[0011] Furthermore, the duster proposed in this utility model may also have the following features: the near end side of the fixing part is formed with an outwardly protruding near-limiting convex edge and a near-limiting convex ring, the interval between the near-limiting convex edge and the near-limiting convex ring is adapted to the inner convex edge of the first sleeve, and the near-limiting convex ring has an arc-shaped surface.

[0012] Furthermore, the duster proposed in this utility model may also have the following features: the duster head has: a base plate for fixing to the fixing part; a frame for fixing to the central axis of the base plate; and brushes distributed radially on the frame.

[0013] Furthermore, the duster proposed in this utility model may also have the following features: the base plate is provided with a plurality of locking strips, and the handle is provided with a plurality of locking slots corresponding to the locking strips.

[0014] Functions and effects of utility models

[0015] The duster proposed in this utility model features a retractable sleeve on the handle. This sleeve allows for two states: a retracted state with the duster head exposed and an extended state with the duster head retracted and stored inside the sleeve. Applying force to the sleeve during use allows for easy switching between these two states. When not in use, the sleeve can be pulled out to store the duster head, facilitating storage. The duster head's placement within the sleeve also provides dust protection and prevents prolonged exposure, thus extending its lifespan. Attached Figure Description

[0016] Figure 1 This is a simplified structural diagram of the duster in the extended sleeve state according to an embodiment of the present invention.

[0017] Figure 2 This is a simplified structural diagram of the duster in the retracted sleeve state according to an embodiment of the present invention.

[0018] Figure 3 yes Figure 1 The cross-sectional view shown in the diagram.

[0019] Figure 4 This is a cross-sectional view of the sleeve at the handle in the retracted state according to an embodiment of this utility model.

[0020] Figure 5 This is a simplified structural diagram of the handle in an embodiment of this utility model.

[0021] Figure 6 This is a simplified structural diagram of the skeleton of an embodiment of this utility model.

[0022] Reference numerals: Dust duster 10, handle 1, fixing part 11, near limit protrusion 111, near limit protrusion ring 112, far limit protrusion 113, far limit protrusion ring 114, locking strip 12, duster head 2, base plate 21, locking groove 211, frame 22, brush 23, sleeve 3, first sleeve 31, outer protrusion 32, inner protrusion 33, inner protrusion ring 34, outer protrusion 35, outer protrusion ring 36, eighth sleeve 38. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following describes the duster of this utility model in detail with reference to the embodiments and accompanying drawings.

[0024] <Example>

[0025] This embodiment provides a duster 10, including a handle 1, a duster head 2, and a sleeve 3. The duster head 2 is mounted on one end of the handle 1, and the sleeve 3 is telescopically mounted on the handle 1, allowing the duster head 2 to be housed within the sleeve 3. When the sleeve 3 is extended, it forms an extended state in which the duster head 2 is housed within the sleeve 3 (e.g., ...). Figure 1 As shown), after the sleeve 3 retracts, it forms a retracted state that exposes the duster head 2 (as shown). Figure 2 (As shown). When the duster head 2 is exposed, it can be unfolded and used. After use, the sleeve 3 can be unfolded and extended to store the duster head 2 inside the sleeve 3, which is convenient for storage and dust prevention. When storing, since the sleeve 3 is cylindrical after unfolding, the duster 10 can be placed upside down (i.e., the handle end is facing up and the sleeve end face is facing down) on a flat surface, which is very convenient.

[0026] Specifically, the sleeve 3 includes j annular segments, with the (i+1)th segment slidably fitted onto the ith segment, where j ≥ 2, 1 ≤ i < j, and i and j are both integers. In this embodiment, as... Figure 1As shown, the sleeve 3 includes eight segments, with the end of the segment closest to the handle 1 as the proximal end and the end furthest from the handle 1 as the distal end. The segment closest to the handle 1 is the first segment 31, and the segment furthest from the handle 1 is the eighth segment 38. The end of the handle 1 closest to the segment forms a fixing part 11. The first segment 31 is slidably fitted onto the outer side of the distal end of the fixing part 11. The remaining segments are slidably fitted onto the outer side of the previous segment one by one. A limiting structure is provided between adjacent segments. Figure 2 As shown, when the sleeve 3 retracts, the outer sleeve can retract the previous sleeve into the inner sleeve during the sliding process, thus forming a stacked structure, which is stacked layer by layer on the outer periphery of the fixing part 11. Since the sleeve 3 is stacked on the outer periphery of the fixing part 11, the axial direction of the sleeve 3 has a certain distance, so that when the user holds the handle 1, the hand can be separated from the end of the duster head 2, avoiding direct contact between the hand and the duster head 2, resulting in a better user experience.

[0027] The limiting structure is as follows: the distal end of each sleeve protrudes outward to form an outer convex edge 32, and the proximal end of each sleeve protrudes inward to form an inner convex edge 33. The inner convex edge 33 of the (i+1)th sleeve is fastened to the outside of the outer convex edge 32 of the ith sleeve. The distal end of the fixing part 11 protrudes outward to form a distal limiting convex edge 113, and the inner convex edge 33 of the first sleeve 31 is fastened to the outside of the distal limiting convex edge 113. The proximal side of the distal limiting convex edge 113 also has a distal limiting convex ring 114. The gap between the distal limiting convex edge 113 and the distal limiting convex ring 114 is adapted to the inner convex edge 33 of the first sleeve 31. That is, when unfolded, the inner convex edge 33 of the first sleeve 31 can just be fastened between the distal limiting convex edge 113 and the distal limiting convex ring 114, so that the two sleeves can be limited in the extended state without the action of external force. The distal limiting protrusion 114 has an arcuate surface, which allows the distal limiting protrusion 113 to form a guide as it slides along the distal limiting protrusion 114.

[0028] The proximal end of the fixing part 11 has an outwardly protruding protruding edge 111 and a protruding ring 112. The gap between the protruding edge 111 and the protruding ring 112 is adapted to the inner protruding edge 33 of the first sleeve 31. The protruding ring 112 has an arc-shaped surface, so that the inner protruding edge 33 of the first sleeve 31 can form a guide when sliding along the protruding ring 112.

[0029] The inner wall of the nth sleeve is provided with an inner convex ring 34 at intervals on one side of the inner convex edge 33. The interval between the inner convex ring 34 and the inner convex edge 33 is adapted to the thickness of the outer convex edge 32 of the (n-1)th sleeve. The inner convex ring 34 has an arc-shaped surface to form a sliding guide. Wherein, n>1, that is, all sleeves except the first sleeve 31 have the above-mentioned inner convex ring 34, which can limit the two adjacent sleeves in the extended state, so that the sleeve 3 can always remain in the extended state without the action of external force.

[0030] The proximal end of the m-th sleeve protrudes outward to form an outer flange 35. An outer ring 36 is formed on the outer peripheral surface of the m-th sleeve near the outer flange 35. The interval between the outer ring 36 and the outer flange 35 matches the thickness of the inner convex edge 33 of the (m+1)-th sleeve. The outer ring 36 has an arc-shaped surface, forming a sliding guide. Where m < j, meaning that all sleeves except the farthest sleeve (i.e., the eighth sleeve 38) have the aforementioned outer flange 35 and outer ring 36, which can limit the movement of adjacent sleeves in the contracted state, ensuring that the sleeve 3 remains in the contracted state without external force. Since the eighth sleeve 38 is the farthest sleeve and is located on the outermost side after contraction, it does not have an outer flange 35 and outer ring 36. This is because the eighth sleeve 38 is on the outermost side and does not need to form a connection or limiting relationship with other sleeves; it also makes the outer periphery of the eighth sleeve 38 smooth and aesthetically pleasing.

[0031] The duster head 2 has a base plate 21, a frame 22, and a brush 23. The base plate 21 is used to fix it to the fixing part 11, such as Figure 5 and Figure 6 As shown, the base plate 21 has several slots 211, and the handle 1 has several corresponding clips 12. The duster head 2 is mounted on the handle 1 by engaging the slots 211 with the clips 12. The frame 22 is made of several strands of steel wire twisted together and fixed on the central axis of the base plate 21. The brush 23 has several bristles, which are radially distributed on the frame 22 and axially distributed throughout the entire frame 22. Figure 2 As shown, when the sleeve 3 retracts, the duster head 2 is exposed outside the sleeve 3, and the brush unfolds, allowing the duster head 2 to remove dust; as Figure 3 As shown, when the sleeve 3 is unfolded, the brush is pressed into the sleeve 3 by the inner wall of the sleeve 3 for storage.

[0032] In this embodiment, the sleeve 3 is composed of interlocking sections. During use, simply pull the outermost section towards the handle to retract all sections, exposing the duster head 2 for cleaning. After cleaning, simply pull the outermost section outwards to unfold the sleeve 3 and store the duster head inside. It is very convenient to use. The sections are restrained by a limiting structure, ensuring they remain in the extended position. When the bristles on the duster head 2 are compressed within the sleeve 3, the sleeve 3 compresses the bristles, reducing the overall volume of the duster head. This reduces the space occupied by the duster 10 during storage, making it easier to store. Furthermore, whether extended or retracted, the sleeve 3 remains in its current state without external force due to the restraining structure between its sections, preventing any impact on its performance.

[0033] The above embodiments are merely illustrative of specific implementations of the present invention, and the present invention is not limited to the scope of the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dusting duster characterised in that, include: handle; A duster head is mounted on one end of the handle; and A sleeve, telescopically mounted on the handle; The sleeve has a retracted state in which the duster head is exposed and an extended state in which the duster head is built into the sleeve. The sleeve comprises j sleeve sections, with the (i+1)th sleeve section slidingly fitted onto the ith sleeve section, where j ≥ 2 and 1 ≤ i < j.

2. The dusting brush of claim 1, wherein The end of the sleeve closest to the handle is the proximal end, and the end of the sleeve furthest from the handle is the distal end. The distal end of the sleeve protrudes outward to form an outer convex edge, and the proximal end of the sleeve protrudes inward to form an inner convex edge. The inner convex edge of the (i+1)th sleeve is fastened to the outside of the outer convex edge of the i-th sleeve.

3. The dusting brush of claim 2, wherein, The inner wall of the nth sleeve is provided with an inner convex ring at intervals on one side of the inner convex edge. The interval between the inner convex ring and the inner convex edge is adapted to the thickness of the outer convex edge of the (n-1)th sleeve. The inner convex ring has an arc-shaped surface; where n>1.

4. The dusting brush of claim 2, wherein, The proximal end of the m-th sleeve protrudes outward to form an outer flange. An outer convex ring is formed on the outer peripheral surface of the m-th sleeve near the outer flange. The distance between the outer convex ring and the outer flange is adapted to the thickness of the inner convex edge of the (m+1)-th sleeve. The outer convex ring has an arc-shaped surface. Wherein, m < j.

5. The dusting brush of claim 4, wherein, The handle has a fixing part, and the sleeve includes a first sleeve. The first sleeve is slidably sleeved on the outer side of the distal end of the fixing part. The distal end of the fixing part protrudes outward to form a distal limiting protrusion. The inner protrusion of the first sleeve is fastened to the outer side of the distal limiting protrusion.

6. The dusting brush of claim 5, wherein, The proximal side of the distal limiting protrusion also has a distal limiting protrusion ring, the interval between the distal limiting protrusion and the distal limiting protrusion ring is adapted to the inner protrusion of the first sleeve, and the distal limiting protrusion ring has an arc-shaped surface.

7. The dusting brush of claim 6, wherein, The proximal end of the fixing part has an outwardly protruding protruding edge and a protruding ring. The gap between the protruding edge and the protruding ring is adapted to the inner protruding edge of the first sleeve. The protruding ring has an arc-shaped surface.

8. The duster according to any one of claims 5-7, wherein, The duster head has the following features: Base plate, used for fixing to the fixing part; The frame is fixed on the central axis of the base plate; and The brushes are distributed radially on the skeleton.

9. The dusting brush of claim 8, wherein, The base plate is provided with several slots, and the handle is provided with several strips corresponding to the slots.

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