Dust removal tool with tensioned wiping object

Abstract

The dust removal tool 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 cleaning head so as to change the width of the cleaning head, a supporting piece is arranged between the first supporting arm and the second supporting arm, and the supporting piece enables the first supporting arm and the second supporting arm to be kept in an open state so as to support and tension a wiping object. And when moving backwards, the first supporting arm and the second supporting arm are close to each other to be folded so as to enter the storage cavity. 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 dusters, and particularly relates to a dust removal tool with a tensioned wiping object. Background Art

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

[0003] An object of the utility model is to provide a dust removal tool with a tensioned wiping object to solve the above problems.

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

[0005] A dust removal tool with a tensioned wiping object 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. A support member is arranged between the first support arm and the second support arm. The support member keeps the first support arm and the second support arm in an open state to support and tension the wiping object. When the first support arm and the second support arm move backward, they approach and close to enter the storage cavity. By arranging the 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 tool and avoiding the thin sheet-like 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 object, and the cleaning head gradually separates from the wiping object to realize the automatic disassembly of the wiping object. The setting of the support member prevents the cleaning head from moving towards each other when receiving slight external force, thereby improving the installation stability of the wiping object.

[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. 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 arrangement of the guiding surface or the first support arm and the second support arm can reduce the width of the cleaning head during storage 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 installed 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 outside. The setting of the sliding assembly can control and drive the cleaning head to enter or leave the storage cavity outside, making the operation 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 during storage.

[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 installed 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 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 in 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 greater than the width of the storage cavity.

[0011] Preferably, a clearance cavity is provided between the first supporting arm and the second supporting arm, the clearance cavity is located at the front end of the rotating shaft, the guide rod passes through the clearance cavity, the guide rod abuts against the extension section to drive the cleaning head to move backward, and the front ends of the first supporting arm and the second supporting arm enclose the guide rod when the first supporting arm and the second supporting arm are stored, and the guide rod abuts against the first supporting arm and the second supporting arm to drive the cleaning head to move forward. The setting of the clearance cavity can simultaneously meet the rotation of the first supporting arm and the second supporting arm and the linkage between the sliding assembly and the cleaning head when the guide rod is installed, avoiding interference between the movement and rotation of the first supporting arm and the second supporting arm.

[0012] Preferably, the sliding assembly further comprises a locking mechanism, which comprises a card slot and a card block, wherein the card slot is arranged at the front end of the sliding slot, the card block is movably mounted between the sliding sleeve and the fixing seat, a spring is arranged between the card block and the fixing seat, and the elastic force of the spring causes the card block to automatically move upward into the card slot when it moves to the card slot position, so as to keep the cleaning head in an outwardly extended cleaning state, the card block is provided with a button, the button is located on the sliding sleeve, and the button is pressed, the card block moves downward out of the card slot, and the cleaning head can move backward into the storage state. The setting of the locking mechanism can keep the cleaning head in an extended cleaning state, and prevent the cleaning head from moving backward into the storage chamber during cleaning.

[0013] Preferably, the wiper is sleeved on the cleaning head, and the first supporting arm and the second supporting arm are provided with a mounting section and a storage section on both sides, respectively. 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 wiper to spread the wiper, and the mounting section includes a plurality of mounting blocks protruding outward, and the storage section is set 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. The setting of the mounting section and the mounting block increases the resistance between the cleaning head and the wiper, and prevents the wiper from sliding and separating relative to the cleaning head.

[0014] Preferably, the wipe is provided in a bag, which is enclosed on three sides and open on one side, and the cleaning head enters the wipe from the opening, and the first supporting arm and the second supporting arm are opened to contact the inner surface of the wipe, so that a cleaning surface is formed on the width of the wipe.

[0015] Preferably, the bottom of the mounting block is provided with an inclined surface, and the inclined surface cooperates with the storage cavity to enable the first supporting arm and the second supporting arm to rotate toward each other when they move backward. The setting of the inclined surface can convert the backward movement of the first supporting arm and the second supporting arm into a rotation toward each other, thereby avoiding the situation where the bottom of the mounting block and the mouth of the storage cavity are stuck against each other.

[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 overall storage length and volume of the dust removal tool, and preventing the thin sheet-like cleaning head from being exposed to the outside and being damaged or 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 to realize automatic disassembly of the wiping object; 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 offset 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; the setting of the support member prevents the cleaning head from moving toward each other when subjected to a slight external force, so as to improve the installation stability of the wiping object. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 4 It is an exploded schematic diagram of the dust removal tool 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 removal tool 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 12 It is an exploded view of the dust removal tool according to Embodiment 2 of the present utility model.

[0029] Figure 13 It is a sectional view of the dust removal tool according to Embodiment 2 of the present utility model and a partially enlarged view of the pressing buckle.

[0030] Figure 14 It is a schematic diagram 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 elaborate on the implementation manners of the present utility model, so as to fully understand how the present utility model applies technical means to solve technical problems and achieve the realization 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 the 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 such words, it can mean directly provided or directly arranged on another component or there may also be an intermediate component, and it can be an integral structure or a split structure. When a component is described as "connected" to another component and other such words, it can be directly connected or connected through an intermediate component, and it 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 necessarily mean that the component is 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 state of being approximately vertical or approximately horizontal within a reasonable error range and do not have to be very precise. Embodiment

[0033] Such as Figure 1-12 , a dust removal tool with a wiping object tensioned, including 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 relative positions of the first support arm 4 and the second support arm 5 can be adjusted to change the width of the cleaning head 2. The first support arm 4 and the second support arm 5 are opened to support the wiping object (not shown in the drawings) detachably and approach and close when moving backward to enter the storage cavity 3.

[0034] In this embodiment, the handle 1 of the dust removal tool is described in the case of only having one section, that is, the handle 1 is not provided with a telescopic structure and only has 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 move backward into the telescopic rod to achieve telescopic adjustment. This embodiment will describe in detail the dust removal function 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 have 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 rods are respectively telescopically received; when unfolding, first pull the handle 1 and the telescopic rods 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 to hold, the diameter or width of the handle 1 is between 20MM - 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 between 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 being unfolded, 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 up and down. 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 blocking 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. Under the action of the guiding surface 6, the height between the first support arm 4 and the second support arm 5 changes and is gradually staggered until the two support surfaces overlap up and down.

[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 leaving 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, 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 installed 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 installed 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 ends rotate and open, and the rear ends rotate and open in opposite directions. 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 relatively small. 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 materials with a larger width.

[0042] Specifically, as Figure 6The first supporting arm 4 and the second supporting arm 5 are both provided with an extension section 14, which extends in the direction of the other supporting arm. A concave cavity 15 is provided on the extension section 14. Any extension section 14 is inserted into the concave cavity 15 of the other extension section 14 for staggered installation. The first supporting arm 4 and the second supporting arm 5 are connected along the same rotating shaft 12, and the rotating shaft 12 is arranged on the extension section 14. The arrangement of the extension section 14 makes the rotating shaft 12 closer to the center of the first supporting arm 4 and the second supporting arm 5, as well as the center of the storage cavity 3, so as to expand the rotation angle of the first supporting arm 4 and the second supporting arm 5. The arrangement of the concave cavity 15 makes the two supporting arms with the same structure automatically staggered during installation, so as to reduce the mutual obstruction when the first supporting arm 4 and the second supporting arm 5 rotate toward each other for storage.

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

[0044] If the rotating shaft 12 of the first supporting arm 4 and the second supporting arm 5 and the guide rod 10 are different components, in order to enable the guide rod 10 to drive the first supporting arm 4 and the second supporting arm 5 to move without interfering with the rotation of the first supporting arm 4 and the second supporting arm 5, in this embodiment, Figure 5 A clearance cavity 16 is provided between the first supporting arm 4 and the second supporting arm 5. The clearance cavity 16 is located at the front end of the rotating shaft 12. The guide rod 10 passes through the clearance cavity 16. The guide rod 10 abuts against the fixed seat 11 or the extension section 14 to drive the cleaning head 2 to move backward. When the first supporting arm 4 and the second supporting arm 5 are stored, the front end encloses the guide rod 10. The guide rod 10 abuts against the fixed seat 11 or the first supporting arm 4 and the second supporting arm 5 to drive the cleaning head 2 to move forward. During installation, the first supporting arm 4 and the second supporting arm 5 are first installed on the fixed seat 11, and the first supporting arm 4 and the second supporting arm 5 are rotated to the overlapping position, and extend into the storage cavity 3 together with the fixed seat 11, and the sliding sleeve 9 is moved to the position corresponding to the fixed seat 11. The guide rod 10 is sequentially passed through the sliding sleeve 9, the slide groove 7 and the clearance cavity 16 from the outside to realize the overall installation of the dust removal tool.

[0045] Preferably, the fixed seat 11 is provided with a clearance gap 17 on both sides corresponding to the first supporting arm 4 and the second supporting arm 5. The clearance gap 17 can increase the rotation angle of the first supporting arm 4 and the second supporting arm 5. Of course, it can also be arranged 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 side wall of the fixed seat 11 from hindering the rotation of the first supporting arm 4 and the second supporting 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 matching 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, so that after the sliding sleeve 9 moves to the rear end of the handle 1, the sliding sleeve 9 and the handle 1 can jointly enter the telescopic rod backward; 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 channels adapted to the sliding convex block are arranged at the corresponding positions 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, the cleaning head 2 is pushed to move the cleaning head 2 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, not much processing is required for the telescopic rod.

[0047] Preferably, the sliding assembly 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 causes the clamping block 19 to 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 surface 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 front and rear positions of the groove 23 change 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 assembly 8.

[0049] Of course, on the basis of setting 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 assembly 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 ways. The slide rails 22 are no longer arranged on both sides of the slide groove 7. For example, Figure 12 , a sunken groove or a through hole extending outward is arranged at the front end of the slide groove 7. The groove or hole forms the card slot 18. When the sliding assembly 8 moves to the position of the card slot 18, the clamping block 19 automatically enters the card slot 18 for positioning. Another identical card slot 18 is arranged 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 clamping block 19 structures of this structure, when adding the telescopic rod, the sliding sleeve 9 and the guide rod 10 structures can be removed to keep 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 elastic member can also be arranged on the clamping block 19 and the arc surface can be arranged at the edge of the card slot 18 between the clamping block 19 and the card slot 18, so that the clamping block 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 assembly 8 and the cleaning head from moving forward and detaching from the handle; by using the groove or hole to form the card slot 18, the cooperation and limitation between the clamping block 19 and the card slot 18 can also prevent the sliding assembly 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 to the same point. The side close to each other when the first support arm 4 and the second support arm 5 are opened is provided with a storage section 24, and the side far from each other is provided with an installation section. 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 toward 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 object, the installation section is located on the outside and contacts the wiping object. The setting of the installation blocks 25 reduces the contact area between the cleaning head 2 and the wiping object and increases the moving resistance between the cleaning head 2 and the wiping object when the cleaning head 2 is opened, so as to avoid the wiping object from falling off.

[0053] In this embodiment, the wiping object is set as a bag shape, that is, three sides of the wiping object are enclosed and one side is open. The opening is arranged in the width direction of the wiping object, 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 object 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 make the upper and lower surfaces of the wiper form a cleaning plane.

[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 between the cleaning head 2 and the wiper is smaller than the opening distance of the cleaning head 2 to prevent the wiper from falling off, and together 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 set as a compression spring or an elastic strip. The elastic force of the support member 27 makes the first support arm 4 and the second support arm 5 not 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 accommodated 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 out part of the cleaning head 2 from 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 locking block 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 to make the wiper taut 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 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 invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded 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 invention shall be included within the protection scope of the present invention.

Claims

1. A dust removal tool with a wiping material tensioned, comprising a handle and a cleaning head, characterized in that: A storage cavity is provided in the handle, and the cleaning head is movably mounted at the front end of the storage cavity. The cleaning head comprises a first supporting arm and a second supporting arm, and the relative positions of the first supporting arm and the second supporting arm can be adjusted to change the width of the cleaning head. A support member is provided between the first supporting arm and the second supporting arm, and the support member enables the first supporting arm and the second supporting arm to remain in an open state to support the tensioned wipe, and the first supporting arm and the second supporting arm are brought close together when moving backward to enter the storage cavity.

2. The dust removal tool with a wipe tensioning 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 removal tool with a wipe tensioning 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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 wipe tensioning dust removal tool 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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