Dust removal duster

Abstract

The utility model provides a dedusting duster which comprises a handle and a cleaning head, a containing cavity is formed in the handle, the cleaning head is movably installed at the front end of the containing cavity, the cleaning head comprises a first supporting arm and a second supporting arm, the mutual position of the first supporting arm and the mutual position of the second supporting arm can be adjusted, and the first supporting arm and the second supporting arm are movably installed in the containing cavity. The first supporting arm and the second supporting arm are arranged on the handle so as to change the width of the cleaning head, the wiping object is tensioned when the first supporting arm and the second supporting arm are mutually opened, the first supporting arm and the second supporting arm are close to each other when moving backwards so as to enter the containing cavity, and the wiping object is automatically separated from the cleaning head due to blocking of the handle. According to the dust removal tool, the containing cavity is formed in the handle, the cleaning head can be contained in the containing cavity, the overall containing length and size of the dust removal tool are shortened, and the phenomenon that the sheet-shaped cleaning head is exposed outside and broken is avoided.

Description

Technical Field

[0001] The utility model relates to the field of dust removal tools, and particularly relates to a dust removal duster. Background Art

[0002] As a cleaning tool, the dust removal duster is widely used in daily household dust cleaning, such as chicken feather duster, electrostatic duster, etc. The existing dust removal duster generally includes a handle and a duster body. The duster body is detachably installed with a disposable wiping material. The handle adjusts the use length and storage length of the dust removal duster through a telescopic structure and a rotating structure. This dust removal duster has the advantages that the wiping material can be discarded as needed and is convenient for storage. However, when the dust removal duster is stored, the duster body is located outside, and the duster body is generally a thin sheet supported by plastic, which has the risk of breaking. Therefore, there is still room for optimizing the structure of the dust removal duster. Summary of the Utility Model

[0003] An object of the utility model is to provide a dust removal duster for solving the above problems.

[0004] To achieve the above utility model object, the utility model is realized through the following technical solutions:

[0005] A dust removal duster includes a handle and a cleaning head. A storage cavity is arranged inside the handle. The cleaning head is movably installed at the front end of the storage cavity. The cleaning head includes a first support arm and a second support arm. The relative positions of the first support arm and the second support arm can be adjusted to change the width of the cleaning head. When the first support arm and the second support arm are opened, a wiping material is tensioned. When the first support arm and the second support arm move backward, they approach and close to enter the storage cavity, and the wiping material is automatically separated from the cleaning head under the block of the handle. By arranging a storage cavity in the handle, the cleaning head can be stored in the storage cavity, shortening the overall storage length and volume of the dust removal duster, and avoiding the thin sheet-shaped cleaning head being exposed outside and damaged or broken. During the process of the cleaning head entering the storage cavity, the mouth of the storage cavity abuts against the wiping material, and the cleaning head is gradually separated from the wiping material to realize the automatic disassembly of the wiping material without separately controlling the disassembly of the wiping material.

[0006] Preferably, the first support arm and the second support arm are arranged in a staggered manner. When the cleaning head moves into the storage cavity, the first support arm and the second support arm are abutted by the entrance of the storage cavity and move closer or deform, and enter the storage cavity in a state of being stacked one on top of the other;

[0007] Preferably, the first support arm and the second support arm are located on the same plane. A guiding surface is provided on the first support arm and / or the second support arm. When the cleaning head moves into the storage cavity, the first support arm and the second support arm are pushed closer by the entrance of the storage cavity. The guiding surface guides the first support arm and the second support arm to move or deform to a misaligned position and enter the storage cavity in a stacked state one above the other. The width of the wiping material is greater than the width of the handle. When in use, the wiping material needs to be supported and spread out by the cleaning head to form a cleaning surface. The misaligned setting of the guiding surface or the first support arm and the second support arm can reduce the width of the cleaning head when being stored, so as to enter the storage cavity for storage.

[0008] Preferably, a sliding groove is provided on the handle, and a sliding assembly is provided between the handle and the cleaning head. The sliding assembly includes a sliding sleeve, a guide rod and a fixed seat. The sliding sleeve is located outside the handle, and the fixed seat is located inside the handle. The first support arm and the second support arm are both rotatably mounted on the fixed seat. The guide rod passes through the sliding groove to connect the sliding sleeve and the fixed seat, so as to control the sliding sleeve to drive the cleaning head to enter or leave the storage cavity on the outside. The setting of the sliding assembly can control and drive the cleaning head to enter or leave the storage cavity on the outside, and the operation is more convenient. The first support arm and the second support arm are rotatably arranged, and the movement is more flexible. Compared with the deformation movement, it can avoid the deformation of the cleaning head when being stored.

[0009] Preferably, a sliding groove is provided on the handle, and a sliding assembly is provided between the handle and the cleaning head. The sliding assembly includes a sliding sleeve and a guide rod. The sliding sleeve is located outside the handle. The first support arm and the second support arm are both rotatably mounted on the guide rod. The guide rod passes through the sliding groove and is fixedly connected to the sliding sleeve, so as to control the sliding sleeve to drive the cleaning head to enter or leave the storage cavity on the outside. Using the guide rod to form the rotating shaft of the first support arm and the second support arm enables the first support arm and the second support arm to rotate synchronously. The guide rod is also connected to the sliding sleeve, playing a role of linkage movement. There are fewer accessories and the installation is more convenient.

[0010] Preferably, extension segments are provided on both the first support arm and the second support arm. The extension segments extend towards the direction of the other support arm. Concave cavities are provided on the extension segments. Any one of the extension segments is inserted into the concave cavity of the other extension segment for staggered installation. The first support arm and the second support arm are connected along the same rotating shaft, and the rotating shaft is arranged on the extension segment. Setting the rotating shaft on the extension segment enables the first support arm and the second support arm to enter the storage cavity only by rotating a small angle. Moreover, when rotating, the lower ends of the first support arm and the second support arm will not open outwards to abut against the storage cavity or be wider than the width of the storage cavity.

[0011] Preferably, a relief cavity is provided between the first support arm and the second support arm. The relief cavity is located at the front end of the rotating shaft. The guide rod passes through the relief cavity. The guide rod abuts against the extension section to drive the cleaning head to move backward. When the first support arm and the second support arm are retracted, the front ends thereof enclose the guide rod. The guide rod abuts against the first support arm and the second support arm to drive the cleaning head to move forward. The provision of the relief cavity can satisfy the rotation of the first support arm and the second support arm and the linkage between the sliding assembly and the cleaning head when installing the guide rod, and avoid the interference between the movement and rotation of the first support arm and the second support arm.

[0012] Preferably, the sliding assembly further includes a locking mechanism. The locking mechanism includes a clamping groove and a clamping block. The clamping groove is provided at the front end of the sliding groove. The clamping block is movably installed between the sliding sleeve and the fixed seat. A spring is provided between the clamping block and the fixed seat. The elastic force of the spring causes the clamping block to automatically move upward into the clamping groove when moving to the position of the clamping groove, so as to keep the cleaning head in the extended cleaning state. A button is provided on the clamping block. The button is located on the sliding sleeve. Pressing the button causes the clamping block to move downward away from the clamping groove, and the cleaning head can move backward into the retracted state. The provision of the locking mechanism can keep the cleaning head in the extended cleaning state and prevent the cleaning head from moving backward into the storage cavity during the cleaning work.

[0013] Preferably, the wiping material is sleeved on the cleaning head. Installation sections and storage sections are respectively provided on both sides of the first support arm and the second support arm. When the first support arm and the second support arm are opened, the two installation sections move away from each other and can cooperate with the wiping material to spread out the wiping material. The installation section includes a plurality of outwardly protruding installation blocks. The storage section is provided as a straight surface or a curved surface. When the cleaning head enters the storage cavity, the storage section is close to or in contact with the side wall of the storage cavity. The storage section reduces the resistance with the side wall of the storage cavity. The provision of the installation section and the installation blocks increases the resistance between the cleaning head and the wiping material and prevents the wiping material from sliding and separating relative to the cleaning head.

[0014] Preferably, the wiping material is provided in a bag shape, enclosed on three sides and open on one side. The cleaning head enters the wiping material from the opening. The first support arm and the second support arm open and contact the inner surface of the wiping material, so as to form a cleaning surface on the width of the wiping material.

[0015] Preferably, an inclined surface is provided at the bottom of the installation block. The inclined surface cooperates with the storage cavity to cause the first support arm and the second support arm to rotate towards each other when moving backward. The provision of the inclined surface can convert the backward movement of the first support arm and the second support arm into a rotation towards each other, and avoid the situation where the bottom of the installation block abuts against and jams the mouth of the storage cavity.

[0016] The advantages of the utility model are: a storage cavity is provided in the handle, and the cleaning head can be stored in the storage cavity, thereby shortening the storage length and volume of the dust duster as a whole, and preventing the thin sheet-like cleaning head from being exposed to the outside and being damaged and broken; when the cleaning head enters the storage cavity, the mouth of the storage cavity abuts against the wiping object, and the cleaning head is gradually separated from the wiping object, so as to realize automatic disassembly of the wiping object, and there is no need to control the disassembly of the wiping object separately; the width of the wiping object is greater than the width of the handle, and the wiping object needs to be supported and spread out by the cleaning head to form a cleaning surface when in use, and the staggered setting of the guide surface or the first supporting arm and the second supporting arm can reduce the width of the cleaning head when it is stored, so that it can enter the storage cavity for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cleaning state of the dust removing duster of the utility model.

[0018] Figure 2 It is a schematic diagram of the cleaning head of the utility model in a closed state.

[0019] Figure 3 It is a schematic diagram of the storage state of the dust duster of the utility model.

[0020] Figure 4 It is a schematic diagram of the explosion of the dust duster of Example 1 of the utility model.

[0021] Figure 5 It is an overall schematic diagram of the cleaning head of Example 1 of the utility model.

[0022] Figure 6 This is a schematic diagram of the staggered installation of the first supporting arm and the second supporting arm in Example 1 of the utility model.

[0023] Figure 7 It is a schematic diagram of the guide surfaces of the first supporting arm and the second supporting arm of Example 1 of the utility model.

[0024] Figure 8 It is a schematic diagram of the engagement state of the card block and the card slot of Example 1 of the utility model.

[0025] Figure 9 It is a cross-sectional view and a partially enlarged schematic view of the backward movement process of the cleaning head of Example 1 of the utility model.

[0026] Figure 10 It is a cross-sectional view of the dust duster of Example 1 of the utility model and a partially enlarged schematic view of the giving way of the guide rod by the giving way cavity.

[0027] Figure 11 It is a schematic diagram of the state in which the supporting member supports the cleaning head in Embodiment 1 of the utility model.

[0028] Figure 12It is an exploded view of the dust duster according to Embodiment 2 of the present utility model.

[0029] Figure 13 It is a sectional view of the dust duster according to Embodiment 2 of the present utility model and a partially enlarged schematic view of the press button.

[0030] Figure 14 It is a schematic view of the rotating state of the cleaning head according to Embodiment 3 of the present utility model. Detailed implementation manners

[0031] The following will combine the accompanying drawings to detail the implementation manners of the present utility model, so as to fully understand how the present utility model uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0032] In the present utility model, certain terms are used to refer to specific components. Those skilled in the art should understand that this specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. It should be noted that unless otherwise specified, when a component is described as "provided with" or "arranged on" or "set on" another component and other words, it can mean directly provided or directly arranged on another component or there may also be an intermediate component, which can be an integral structure or a split structure. When a component is described as "connected" to another component and other words, it can be directly connected or connected through an intermediate component, and can be integrally connected or split-connected or there may be a contact fit relationship. When a component is described as "set on another component", it does not mean that the component must be located above or on the upper part of another component, but can also be in other positions. The terms "upper", "lower", "left", "right", "high", "low" and similar expressions used herein are based on the normal placement state of the product and are only for the purpose of convenience of description. The term "a plurality" used herein refers to two or more numbers. The terms "vertical", "horizontal" and similar words used herein refer to a substantially vertical or substantially horizontal state within a reasonable error range and do not have to be very precise. Embodiment

[0033] As Figure 1-12 , a dust duster includes a handle 1 and a cleaning head 2. A storage cavity 3 is provided in the handle 1. The cleaning head 2 is movably installed at the front end of the storage cavity 3. The cleaning head 2 includes a first support arm 4 and a second support arm 5. The positions of the first support arm 4 and the second support arm 5 can be adjusted relative to each other to change the width of the cleaning head 2. The first support arm 4 and the second support arm 5 are opened to support a wiping object (not shown in the drawings) detachably and approach and close to each other when moving backward to enter the storage cavity 3.

[0034] In this embodiment, the handle 1 of the dusting brush is described with only one section, that is, the handle 1 is not provided with a telescopic structure and has only one section. The front end of the handle 1 is connected to the cleaning head 2. In actual use, a telescopic structure can also be provided on the handle 1. It can be understood that on the basis of the handle 1 and the cleaning head 2 in this embodiment, several telescopic rods are also provided at the rear end of the handle 1. The handle 1 can be telescopically adjusted by moving backward into the telescopic rod. This embodiment will describe in detail the dust removal functional unit composed of the handle 1 and the cleaning head 2. Even if telescopic rods are provided at the rear end of the handle 1, it will not cause too much impact on the specific structure between the handle 1 and the cleaning head 2. For example, first, the cleaning head 2 is received into the handle 1, and then the handle 1 and the telescopic rod are telescopically received respectively; when unfolding, first pull the handle 1 and the telescopic rod apart and then pull the cleaning head 2 apart.

[0035] The handle 1 in this embodiment is set as a circular tube or a square tube. And in order to facilitate the user's grip, the diameter or width of the handle 1 is between 20MM and 30MM. The handle 1 of this size can meet the hand shapes of most consumers and is more comfortable to hold. The structures of the first support arm 4 and the second support arm 5 are the same, only the installation directions or positions are different. When assembling in production, workers do not need to deliberately distinguish the first support arm 4 and the second support arm 5, so as to improve the production and assembly efficiency. The widths of the first support arm 4 and the second support arm 5 when being received are adapted to the receiving cavity 3, and are larger than the size of the receiving cavity 3 when unfolding, so as to jointly support the wiping object and make the wiping object have a cleaning surface with a stable width.

[0036] Specifically, such as Figure 2 and Figure 6 , the widths of the first support arm 4 and the second support arm 5 are each adapted to the receiving cavity 3 and are arranged in a staggered manner, that is, the whole or the adjacent sides of the first support arm 4 and the second support arm 5 are on different planes. When the cleaning head 2 moves backward into the receiving cavity 3, the first support arm 4 and the second support arm 5 move towards each other until the two support arms overlap vertically. Of course, the first support arm 4 and the second support arm 5 can also be arranged on the same plane, such as Figure 7 , a guiding surface 6 is provided on one or both of the first support arm 4 and the second support arm 5. When the cleaning head 2 moves backward, under the block of the entrance 13 of the receiving cavity 3, the first support arm 4 and the second support arm 5 move towards each other, and the adjacent sides of the first support arm 4 and the second support arm 5 abut against each other. Under the action of the guiding surface 6, the height between the first support arm 4 and the second support arm 5 changes and gradually becomes staggered until the two support surfaces overlap vertically.

[0037] It should be noted that the front-back, up-down, and width directions in this embodiment are referred to the attached Figure 1-3 description. Moving forward means moving to the right in the attached Figure 1-3 , moving backward means moving to the left in the figure, and the up-down direction is the direction of approaching or moving away from the line of sight in Figure 1-3 , and it can also be understood asFigure 7-8 The up - down direction in Figure 1-3 the up - down direction in this, and this direction is the opening direction of the cleaning head 2.

[0038] In this embodiment, the first support arm 4 and the second support arm 5 are rotatably connected. In other embodiments, the first support arm 4 and the second support arm 5 can be fixedly connected or integrally formed. The first support arm 4 and the second support arm 5 are made of plastic sheets and deform and overlap when subjected to external forces.

[0039] Preferably, in order to facilitate controlling the backward movement and storage of the cleaning head 2, a chute 7 is provided on the handle 1, and a sliding component 8 is provided between the handle 1 and the cleaning head 2. The sliding component 8 includes a sliding sleeve 9, a guide rod 10 and a fixed seat 11. The sliding sleeve 9 is located outside the handle 1, the fixed seat 11 is located inside the handle 1, both the first support arm 4 and the second support arm 5 are rotatably mounted on the fixed seat 11, and the guide rod 10 passes through the chute 7 to connect the sliding sleeve 9 and the fixed seat 11, so as to control the sliding sleeve 9 outside the handle 1 to indirectly drive the cleaning head 2 to enter or leave the storage cavity 3.

[0040] In other embodiments, the sliding component 8 can also be set as follows: The sliding component 8 includes a sliding sleeve 9 and a guide rod 10. The sliding sleeve 9 is located outside the handle 1, both the first support arm 4 and the second support arm 5 are rotatably mounted on the guide rod 10, and the guide rod 10 passes through the chute 7 and is fixedly connected to the sliding sleeve 9, so as to control the sliding sleeve 9 outside the handle 1 to indirectly drive the cleaning head 2 to enter or leave the storage cavity 3.

[0041] In the above - mentioned embodiment, the first support arm 4 and the second support arm 5 are rotatably connected along the same rotating shaft 12, so that the first support arm 4 and the second support arm 5 rotate synchronously, and the rotating shaft 12 is located at the rear end of the first support arm 4 and the second support arm 5. Setting the rotating shaft 12 at this position can expand the rotation angle of the first support arm 4 and the second support arm 5 and reduce the influence of the side wall and the entrance 13 of the storage cavity 3 on the first support arm 4 and the second support arm 5. If the first support arm 4 and the second support arm 5 are rotatably connected along different rotating shafts 12 respectively, the rotation angles of the first support arm 4 and the second support arm 5 are easily blocked by the side wall and the entrance 13 of the storage cavity 3, and the rotation angles become smaller. If the rotating shaft 12 is set at a position far from the rear end of the first support arm 4 and the second support arm 5, the first support arm 4 and the second support arm 5 form a scissor structure, that is, the front end rotates and opens, and the rear end rotates and opens in the opposite direction. Under the obstruction of the side wall of the storage cavity 3, the rotation angles of the first support arm 4 and the second support arm 5 are smaller. Connecting the first support arm 4 and the second support arm 5 along the same rotating shaft 12 and setting the rotating shaft 12 at the rear end can expand the rotation angles of the first support arm 4 and the second support arm 5 within the limited space and width of the storage cavity 3 to adapt to the use of wiping objects with a larger width.

[0042] Specifically, as Figure 6, extension segments 14 are provided on both the first support arm 4 and the second support arm 5. The extension segments 14 extend towards the direction of the other support arm. Concave cavities 15 are provided on the extension segments 14. Any one of the extension segments 14 is inserted into the concave cavity 15 of the other extension segment 14 for staggered installation. The first support arm 4 and the second support arm 5 are connected along the same rotating shaft 12, and the rotating shaft 12 is arranged on the extension segment 14. The arrangement of the extension segment 14 makes the rotating shaft 12 closer to the centers of the first support arm 4 and the second support arm 5, as well as the center of the storage cavity 3, so as to expand the rotation angle of the first support arm 4 and the second support arm 5. The arrangement of the concave cavity 15 enables the two support arms with the same structure to be automatically staggered during installation, so as to reduce the mutual obstruction when the first support arm 4 and the second support arm 5 rotate towards each other and are stored.

[0043] In order to enable the cleaning head 2 to automatically move to the open state when leaving the storage cavity 3, a torsion spring (not shown in the drawings) is provided in this embodiment. The torsion spring is sleeved on the rotating shaft 12, and the torsion spring is accommodated in the concave cavities 15 of the two support arms. The two arms of the torsion spring extend forward and abut against the first support arm 4 and the second support arm 5 respectively, so as to release elastic force when the cleaning head 2 leaves the storage cavity 3 to make the first support arm 4 and the second support arm 5 rotate in the away direction.

[0044] When the rotating shafts 12 of the first support arm 4 and the second support arm 5 and the guide rod 10 are different components, in order to enable the guide rod 10 to drive the first support arm 4 and the second support arm 5 to move and not cause interference to the rotation of the first support arm 4 and the second support arm 5, in this embodiment, as Figure 5 , a relief cavity 16 is provided between the first support arm 4 and the second support arm 5. The relief cavity 16 is located at the front end of the rotating shaft 12. The guide rod 10 passes through the relief cavity 16. The guide rod 10 abuts against the fixed seat 11 or the extension segment 14 to drive the cleaning head 2 to move backward. When the first support arm 4 and the second support arm 5 are stored, the front ends will enclose the guide rod 10, and the guide rod 10 abuts against the fixed seat 11 or the first support arm 4 and the second support arm 5 to drive the cleaning head 2 to move forward. And during installation, first install the first support arm 4 and the second support arm 5 on the fixed seat 11, rotate the first support arm 4 and the second support arm 5 to the overlapping position, and jointly extend into the storage cavity 3 with the fixed seat 11. Move the sliding sleeve 9 to the position corresponding to the fixed seat 11, and sequentially pass the guide rod 10 through the sliding sleeve 9, the sliding groove 7 and the relief cavity 16 from the outside to realize the overall installation of the dusting brush.

[0045] Preferably, relief slots 17 are provided on both sides of the fixed seat 11 corresponding to the first support arm 4 and the second support arm 5. The relief slots 17 can increase the rotation angle of the first support arm 4 and the second support arm 5. Of course, it can also be set that the rotating shaft 12 is arranged at the front end of the fixed seat 11, that is, the rotating shaft 12 is flush with the front surface of the fixed seat 11 or protrudes from the front surface, so as to eliminate the rotation obstruction of the side wall of the fixed seat 11 to the first support arm 4 and the second support arm 5.

[0046] In the above embodiments, if a telescopic rod is added to the rear side of the handle 1, the size of the front section of the telescopic rod can be adapted to the sliding sleeve 9, and the mating size between the rear end of the handle 1 and the front section of the telescopic rod can be adjusted to be adapted to the size of the sliding sleeve 9. After the sliding sleeve 9 moves to the rear end of the handle 1, the sliding sleeve 9 and the handle 1 can jointly move backward into the telescopic rod; alternatively, the thickness of the sliding sleeve 9 can be adjusted or the sliding sleeve 9 can be removed, a sliding convex block is arranged at the position corresponding to the sliding groove 7 on the outer side of the handle 1, and a channel adapted to the sliding convex block is arranged at the corresponding position of each section of the telescopic rod, so that the handle 1 and the sliding convex block can enter the telescopic rod for storage; or after the sliding sleeve 9 is removed, by pushing the cleaning head 2, the cleaning head 2 can be moved backward, and when it moves to the extreme rear position, the front end of the cleaning head 2 is located outside the storage cavity 3, so as to pull the cleaning head 2 to move forward and open. In this structure, there is no need to perform too much processing on the telescopic rod.

[0047] Preferably, the sliding component 8 further includes a locking mechanism. The locking mechanism includes a clamping groove 18 and a clamping block 19. The clamping groove 18 is arranged at the front end of the sliding groove 7. The clamping block 19 is movably installed between the sliding sleeve 9 and the fixed seat 11. A spring 20 is arranged between the clamping block 19 and the fixed seat 11. The elastic force of the spring 20 makes the clamping block 19 automatically move upward into the clamping groove 18 when it moves to the position of the clamping groove 18, so as to keep the cleaning head 2 in the extended cleaning state. A button 21 is arranged on the clamping block 19. The button 21 is located on the sliding sleeve 9. By pressing the button 21, the clamping block 19 moves downward to leave the clamping groove 18, and the cleaning head 2 can move backward into the storage state. In this embodiment, the clamping block 19 is arranged on the side of the guide rod 10, and the connection position of the guide rod 10 and the sliding sleeve 9 forms the button 21.

[0048] In this embodiment, sliding rails 22 extending into the storage cavity 3 are arranged on both sides of the sliding groove 7. The length of the sliding rails 22 is adapted to the sliding groove 7, and a step is arranged at the front end of the sliding rails 22. The position of the step forms the clamping groove 18. When the fixed seat 11 moves to the position of the clamping groove 18, the clamping block 19 automatically enters the clamping groove 18 for positioning under the action of the spring 20. At the same time, a groove 23 is arranged on the fixed seat 11, and the sliding rails 22 can be inserted into the groove 23. The fixed seat 11 moves back and forth in the storage cavity 3, and the groove 23 changes its front and rear positions relative to the sliding rails 22. The arrangement of the groove 23 facilitates alignment during assembly, and the groove 23, the sliding rails 22, the guide rod 10 and the sliding groove 7 jointly act to limit the moving direction and circumferential fixation of the sliding component 8.

[0049] Of course, on the basis of arranging the clamping groove 18 at the front end of the sliding groove 7 to position and hold the cleaning head 2 in the extended cleaning state, the same clamping groove 18 can also be arranged at the rear end of the sliding groove 7. When the sliding component 8 moves backward until the cleaning head 2 completely enters the storage cavity 3, the clamping block 19 enters the clamping groove 18 at the rear end to keep the cleaning head 2 in the storage state where the whole is located in the storage cavity 3.

[0050] In other embodiments, the card slot 18 can also adopt other methods. The slide rails 22 are no longer provided on both sides of the slide groove 7. For example, Figure 12 , a sunken groove or a through hole extending outward is provided at the front end of the slide groove 7. The groove or hole forms the card slot 18. When the sliding component 8 moves to the position of the card slot 18, the latch 19 automatically enters the card slot 18 for positioning. Another identical card slot 18 is provided at the rear end of the slide groove 7 to keep the cleaning head 2 in the stored state. With the card slot 18 and the latch 19 structures of this structure, when adding the telescopic rod, the sliding sleeve 9 and the guide rod 10 structures can be removed to maintain the consistency of the outer shape of the handle, without redundant protruding parts, so as to facilitate the production and processing of the telescopic rod and make the telescopic fit between the handle and the telescopic rod more stable. The latch 19 and the card slot 18 can also adopt the method of setting an elastic member on the latch 19 and an arc surface on the edge of the card slot 18, so that the latch 19 automatically enters or leaves the limit of the card slot 18 when pushing and pulling the cleaning head.

[0051] In the above embodiments, the guide rod 10 passes through the slide groove 7 and is respectively connected to the sliding sleeve 9 and the fixed seat 11, and the guide rod 10 abuts against the front end of the slide groove 7 to prevent the sliding component 8 and the cleaning head from moving forward and detaching from the handle; by using the method of forming the card slot 18 with a groove or a hole, the cooperation and limitation between the latch 19 and the card slot 18 can also prevent the sliding component 8 and the cleaning head from detaching from the handle forward.

[0052] In the above embodiments, for example, Figure 1 , when the cleaning head 2 is opened, it is in a V shape, that is, the front ends of the first support arm 4 and the second support arm 5 are far apart, and the rear ends are connected at the same point. A storage section 24 is provided on the side where the first support arm 4 and the second support arm 5 are close to each other when they are opened, and an installation section is provided on the side where they are far apart. The storage section 24 is set as a flat surface or an arc surface. When the cleaning head 2 moves backward into the storage cavity 3, the storage sections 24 move towards each other and gradually move away until they contact or abut against the entrance 13 of the storage cavity 3. The flat surface or arc surface setting of the storage section 24 reduces the resistance between the storage section 24 and the side wall of the storage cavity 3, and avoids the storage section 24 being stuck against the entrance 13 of the storage cavity 3. The installation section includes several outwardly protruding installation blocks 25. When installing the wiping material, the installation section is located on the outside and contacts the wiping material. The setting of the installation blocks 25 reduces the contact area between the cleaning head 2 and the wiping material, increases the moving resistance between the cleaning head 2 and the wiping material when the cleaning head 2 is opened, and avoids the wiping material from falling off.

[0053] In this embodiment, the wiping material is set in a bag shape, that is, three sides of the wiping material are enclosed and one side is open. The opening is arranged in the width direction of the wiping material, and the size of the opening is between the widths when the cleaning head 2 is closed and opened, so that the cleaning head 2 can enter the opening when it is closed and prevent the wiping material from detaching from the cleaning head 2 when the cleaning head 2 is opened.

[0054] Preferably, the wiper is composed of two non-woven fabrics spliced up and down. A space is formed between the two non-woven fabrics for the cleaning head 2 to enter and open and close. Fibers or soft hairs for dust removal are provided on the outer sides of the two non-woven fabrics. The cleaning head 2 enters the wiper from the opening. The first support arm 4 and the second support arm 5 open and contact the inner surface of the non-woven fabric. The mounting blocks 25 on the two support arms jointly tighten the wiper to prevent the wiper from falling off, and can also form a cleaning plane on the upper and lower surfaces of the wiper.

[0055] Preferably, an inclined surface 26 is provided at the bottom of the mounting block 25. The inclined surface 26 cooperates with the receiving cavity 3 to make the first support arm 4 and the second support arm 5 rotate towards each other when moving backward.

[0056] In this embodiment, the opening of the wiper is smaller than the opening distance of the cleaning head 2 to prevent the wiper from falling off between the cleaning head 2 and the wiper, and in combination with the abutting and tightening of the mounting block 25 on the wiper, it acts together to prevent the wiper from falling off.

[0057] In order to prevent the first support arm 4 and the second support arm 5 from moving towards each other under force when the cleaning head 2 is in the cleaning position, preferably, a support member 27 is further provided between the first support arm 4 and the second support arm 5. The support member 27 prevents the first support arm 4 and the second support arm 5 from moving towards each other. In this embodiment, the support member 27 is arranged as a compression spring or an elastic strip. The elastic force of the support member 27 enables the first support arm 4 and the second support arm 5 not to move towards each other when receiving a small force, making the installation of the first support arm 4 and the second support arm 5 on the wiper more stable.

[0058] Specifically, notches 28 are provided at the positions where the first support arm 4 and the second support arm 5 are close to each other. Grooves for installing the support member 27 are provided on the notches 28. The elastic force of the support member 27 is transmitted to the first support arm 4 and the second support arm 5 through both ends to support the first support arm 4 and the second support arm 5 to remain in the open position. When the first support arm 4 and the second support arm 5 are closed, the support member 27 deforms and shortens until it is received in the two notches 28.

[0059] The following introduces the installation and disassembly methods of the wiper in this embodiment.

[0060] During installation, push the sliding sleeve 9 forward to push part of the cleaning head 2 out of the receiving cavity 3. At this time, the opening width of the cleaning head 2 is small. Align the pushed-out part of the cleaning head 2 with the opening of the wiper and insert it. Continue to push the sliding sleeve 9 forward to drive the cleaning head 2 to extend. During the forward movement of the cleaning head 2, the elastic force of the torsion spring makes the cleaning head 2 gradually open until the latch 19 enters the card slot 18. At this time, the cleaning head 2 is in the extended cleaning state. In this state, the opening distance at the front end of the cleaning head 2 is greater than the width of the opening of the wiper. The mounting sections on the first support arm 4 and the second support arm 5 abut against the inner surface of the wiper, making the wiper tense to form a cleaning plane.

[0061] During disassembly, the button 21 is pressed to make the card block 19 leave the card slot 18, and the sliding sleeve 9 is pulled backward to drive the cleaning head 2 to gradually enter the storage chamber 3. During the backward movement of the cleaning head 2, the outer side of the cleaning head 2 abuts against the entrance 13 of the storage chamber 3, and the first supporting arm 4 and the second supporting arm 5 are forced to rotate toward each other until the distance opened by the cleaning head 2 is equivalent to or smaller than the opening size of the wipe. The wipe abuts against the front end of the handle and gradually moves away from the cleaning head 2 until it falls off the cleaning head 2. Example

[0062] The same parts of this embodiment as those of the first embodiment will not be described repeatedly, and only the differences will be described. The difference between this embodiment and the first embodiment lies in the fixing structure between the wiper and the cleaning head 2 .

[0063] like Figure 12-13 In this embodiment, the sliding assembly 8 includes a sliding sleeve 9, a fixed seat 11 and a push buckle 30. The push buckle 30 is movably installed between the sliding sleeve 9 and the fixed seat 11. The push buckle 30 includes a pressing portion 31 and a positioning portion 32. The pressing portion 31 is arranged on the sliding sleeve 9, and the positioning portion 32 passes through the sliding groove 7 into the storage cavity 3 and extends forward. A positioning hole is provided at the opening position of the wiper. The cleaning head 2 enters the wiper to reach a preset installation position, and the positioning portion 32 extends into the positioning hole to realize the front and rear positioning between the wiper and the cleaning head 2, thereby preventing the wiper from detaching from the cleaning head 2.

[0064] Due to the arrangement of the positioning portion 32 and the positioning hole, this embodiment does not limit the opening size of the wiper. The opening of the wiper is arranged to match the width of the cleaning head 2 when closed or one side of the wiper is completely open. The positioning portion 32 and the positioning hole can both realize the front and rear positioning of the wiper.

[0065] Preferably, both upper and lower sides of the cleaning head 2 are provided with push buckles 30 to position both upper and lower ends of the wiping object. In order to adapt to the push buckles 30 on both sides, in this embodiment, both upper and lower sides of the handle 1 are provided with slide grooves 7, and the sliding sleeve 9 is provided with holes for the push buckles 30 to pass through at positions corresponding to the two slide grooves 7, and the fixed seat 11 is also provided with holes for the push buckles 30 to pass through at positions corresponding to the clearance cavity 16. The upper and lower push buckles 30 enter the clearance cavity 16 along the holes in the up-and-down directions respectively, and the push buckles 30 that enter the clearance cavity 16 form a guide rod 10, and the front-to-back direction of the push buckles 30 abuts against the fixed seat 11 to drive the fixed seat 11 and the cleaning head 2 to move forward and backward following the sliding sleeve 9. Example

[0066] The same parts of this embodiment as those of embodiment 1-2 will not be described repeatedly, and only the differences will be described. The difference between this embodiment and embodiment 1-2 is that the cleaning head 2 can be rotated to adjust the cleaning angle.

[0067] likeFigure 14 , in this embodiment, the cleaning head 2 is rotatably connected to the cleaning head 2 or between the cleaning head 2 and the fixed seat 11. When the cleaning head 2 extends out of the storage cavity 3, the angle of the cleaning head 2 relative to the handle 1 is adjusted by rotation to adapt to different positions to be cleaned.

[0068] The first support arm 4 and the second support arm 5 are thin sheets made of plastic. When moving backward into the storage cavity 3, the first support arm 4 and the second support arm 5 are deformed and move toward each other under the abutment of the entrance 13 of the storage cavity 3 to change the overall width of the first support arm 4 and the second support arm 5, so as to enter the storage cavity 3.

[0069] In this embodiment, the sliding assembly 8 includes a sliding sleeve 9, a guide rod 10 and a fixed seat 11. The guide rod 10 passes through the sliding groove 7 and is fixedly connected to the sliding sleeve 9 and the fixed seat 11 at both ends. The front end of the fixed seat 11 is rotatably connected to the cleaning head 2. When the sliding assembly 8 moves to the frontmost cleaning state, the part of the fixed seat 11 rotatably connected to the cleaning head 2 extends out of the entrance of the storage cavity 3 for the cleaning head 2 to rotate and adjust the cleaning angle relative to the handle 1.

[0070] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A duster, comprising a handle and a cleaning head, characterized in that: A storage cavity is provided in the handle, and the cleaning head can be movably installed at the front end of the storage cavity. The cleaning head includes a first supporting arm and a second supporting arm. The relative positions of the first supporting arm and the second supporting arm can be adjusted to change the width of the cleaning head. The first supporting arm and the second supporting arm are tensioned when they are opened to each other, and the first supporting arm and the second supporting arm are closed together when they move backward to enter the storage cavity. The wipe is automatically separated from the cleaning head due to the obstruction of the handle.

2. The dust duster according to claim 1, characterized in that: The first supporting arm and the second supporting arm are staggered, and the cleaning head moves into the storage chamber. The first supporting arm and the second supporting arm are pressed against the entrance of the storage chamber and move or deform to move closer to each other, and enter the storage chamber in a stacked state. Alternatively, the first supporting arm and the second supporting arm are located on the same plane, and a guide surface is provided on the first supporting arm and / or the second supporting arm. The cleaning head moves into the storage cavity, and the first supporting arm and the second supporting arm are pressed against the entrance of the storage cavity, and the guide surface guides the first supporting arm and the second supporting arm to move or deform to a dislocated position, so as to enter the storage cavity in a stacked state.

3. The dust duster according to claim 2, characterized in that: A slide groove is provided on the handle, and a sliding assembly is provided between the handle and the cleaning head. The sliding assembly includes a sliding sleeve, a guide rod and a fixed seat. The sliding sleeve is located on the outside of the handle, and the fixed seat is located on the inside of the handle. The first supporting arm and the second supporting arm are both rotatably mounted on the fixed seat. The guide rod passes through the slide groove to connect the sliding sleeve and the fixed seat, so as to control the sliding sleeve from the outside to drive the cleaning head to enter or leave the storage cavity.

4. The dust duster according to claim 2, characterized in that: A slide groove is provided on the handle, and a sliding assembly is provided between the handle and the cleaning head. The sliding assembly includes a sliding sleeve and a guide rod. The sliding sleeve is located on the outside of the handle, and the first supporting arm and the second supporting arm are both rotatably mounted on the guide rod. The guide rod passes through the slide groove and is fixedly connected to the sliding sleeve to control the sliding sleeve from the outside to drive the cleaning head to enter or leave the storage cavity.

5. The dust duster according to claim 3, characterized in that: The first supporting arm and the second supporting arm are both provided with an extension section, and the extension section extends in the direction of the other supporting arm. A concave cavity is provided on the extension section, and any extension section is inserted into the concave cavity of the other extension section for staggered installation. The first supporting arm and the second supporting arm are connected along the same rotating shaft, and the rotating shaft is arranged on the extension section.

6. The dust duster according to claim 5, characterized in that: A clearance cavity is provided between the first supporting arm and the second supporting arm, and the clearance cavity is located at the front end of the rotating shaft. The guide rod passes through the clearance cavity, and the guide rod abuts against the extension section to drive the cleaning head to move backward. When the first supporting arm and the second supporting arm are stored, the front end of the guide rod is enclosed by the guide rod, and the guide rod abuts against the first supporting arm and the second supporting arm to drive the cleaning head to move forward.

7. The dust duster according to claim 6, characterized in that: The sliding assembly also includes a locking mechanism, which includes a slot and a block. The slot is arranged at the front end of the slot, and the block is movably installed between the sliding sleeve and the sliding sleeve and the fixed seat. A spring is provided between the block and the fixed seat, and the elastic force of the spring causes the block to automatically move upward into the slot when it moves to the slot position, so as to keep the cleaning head in an outwardly extended cleaning state. A button is provided on the block, and the button is located on the sliding sleeve. When the button is pressed, the block moves downward to leave the slot, and the cleaning head can move backward into a storage state.

8. The dust duster according to claim 7, characterized in that: The wipe is sleeved on the cleaning head, and a mounting section and a storage section are respectively provided on both sides of the first supporting arm and the second supporting arm. When the first supporting arm and the second supporting arm are opened, the two mounting sections are separated from each other and can cooperate with the wipe to spread the wipe. The mounting section includes a plurality of mounting blocks protruding outward, and the storage section is configured as a straight surface or an arc surface. When the cleaning head enters the storage cavity, the storage section is close to or in contact with the side wall of the storage cavity, and the storage section reduces the resistance with the side wall of the storage cavity.

9. The dust duster according to claim 8, characterized in that: The wipe is arranged in a bag, surrounded on three sides and open on one side, the cleaning head enters the wipe from the opening, the first supporting arm and the second supporting arm are opened and contact the inner surface of the wipe, so that a cleaning surface is formed on the width of the wipe.

10. The dust duster according to claim 9, characterized in that: An inclined surface is provided at the bottom of the mounting block, and the inclined surface cooperates with the receiving cavity to enable the first supporting arm and the second supporting arm to rotate toward each other when they move backward.

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