A dust removal rod

Abstract

A dust-removing rod comprises a telescopic handle and an insert for sleeve-mounting a dust-removing duster head, the handle comprises a plurality of sleeve rod sections sleeved with each other, the insert is rotatably connected to the front end of the front sleeve rod through a rotating shaft, the radial dimensions of the plurality of sleeve rod sections increase successively from front to rear, the rear sleeve rod has an inner cavity which passes through in the axial direction, the front sleeve rod penetrates into the inner cavity from the tail of the adjacent rear sleeve rod and can penetrate out from the front end of the adjacent rear sleeve rod, so that the front sleeve rod can be telescopically sleeved into the adjacent rear sleeve rod; the front end of the front sleeve rod is detachably fixedly connected with a locking piece, the tail of the insert is provided with a connecting interlayer and a locking mechanism, the locking piece is arranged in the connecting interlayer through a rotating shaft, the rotating shaft is substantially perpendicular to the top wall and the bottom wall of the connecting interlayer, the locking mechanism at least partially extends into the connecting interlayer, and can lock and unlock the locking piece.

Description

Technical Field

[0001] The utility model relates to a dust-removing duster rod. Background Art

[0002] The dust-removing rod is used to set the dust-removing duster hair. CN 215227306 U discloses a dust-removing duster, including a retractable handle and an insert for setting the dust-removing duster head. The handle includes a plurality of sleeve rods that are sleeved with each other, and the insert is rotatably connected to the front end of the front sleeve rod. The end of the insert is a ring-shaped hinge seat, the inner ring of which is a gear ring. The front section of the front sleeve rod is provided with a mounting seat, the mounting seat has an interlayer, the hinge seat is inserted into the interlayer for rotational connection, and then the rotating shaft that also serves as a button is inserted from the outside of the interlayer. It also has the disadvantage that the front section of the front sleeve rod is provided with a mounting seat. In order to achieve assembly, the mounting seat is relatively large, resulting in the front sleeve rod being unable to be inserted from the rear end of the sleeve rod behind it, while the remaining sleeve rods can be directly inserted from the rear end of the sleeve rod behind it. Therefore, it is easy to cause confusion in the steps when assembling the sleeve rods, which is not conducive to assembly. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the existing dust-removing duster rod, the utility model provides a dust-removing duster rod which can be easily assembled.

[0004] The utility model solves the technical problem by providing a dust-removing rod, comprising a retractable handle and an insert for sleeve-mounting a dust-removing head, wherein the handle comprises a plurality of sleeve rods sleeved with each other, and the insert is rotatably connected to the front end of the sleeve rod at the front through a rotating shaft;

[0005] The radial dimensions of the plurality of sleeve rods increase from front to back, the sleeve rod at the back has an inner cavity that penetrates along the axial direction, the sleeve rod at the front enters the inner cavity from the tail of the adjacent sleeve rod at the back and can pass out from the front end of the adjacent sleeve rod at the back, so that the sleeve rod at the front can be telescopically inserted into the adjacent sleeve rod at the back;

[0006] The front end of the frontmost sleeve rod is detachably fixedly connected with a lock, the tail of the insert is provided with a connecting interlayer and a locking mechanism, the lock is arranged in the connecting interlayer through the rotating shaft, the rotating shaft is basically perpendicular to the top wall and the bottom wall of the connecting interlayer, the locking mechanism at least partially extends into the connecting interlayer, and can lock and unlock the lock.

[0007] Furthermore, the size of the locking element is larger than the inner cavity size of the rear sleeve adjacent to the frontmost sleeve rod.

[0008] Furthermore, the locking mechanism comprises a button and an elastic member, wherein the elastic member is arranged between the connecting interlayer and the button.

[0009] Under the action of the elastic member, the button locks the lock member, so that the insert cannot rotate; after the button overcomes the elastic force of the elastic member and moves, the button is separated from the lock member, so that the insert can rotate.

[0010] Furthermore, the button is arranged on the side of the lock, the pressing direction of the button is the same as the axial direction of the rotating shaft, and a locking block is protruding from the side of the button.

[0011] A plurality of locking teeth are provided on the side of the lock element, and a locking groove is formed between adjacent locking teeth. The locking block can enter or exit the locking groove by moving the button to lock and unlock the lock element. Alternatively, a plurality of locking teeth are provided on the bottom edge of the lock element, and a locking groove is formed between adjacent locking teeth. The locking block of the button extends below the bottom edge of the lock element. The locking block can enter or exit the locking groove by moving the button to lock and unlock the lock element.

[0012] Furthermore, the locking element is a circular rotating disk, the elastic element is arranged between the bottom of the button and the bottom of the connecting interlayer, the top of the connecting interlayer is provided with a through hole for pressing the button, and the elastic element is a spring.

[0013] Furthermore, an embedding groove is provided on the upper surface or the lower surface of the locking element, and the front end of the frontmost sleeve rod is embedded in the embedding groove, so that the frontmost sleeve rod is fixedly connected to the locking element.

[0014] Furthermore, the rotating shaft passes through the connecting interlayer, the front end of the frontmost sleeve rod, the locking piece, and the other side of the connecting interlayer from one side of the connecting interlayer.

[0015] Furthermore, the front end of the frontmost sleeve rod is concave, and the concave part of the front end of the frontmost sleeve rod is embedded in the embedding groove, so that the front end of the frontmost sleeve rod with the locking element and the rest of the frontmost sleeve rod have substantially the same thickness.

[0016] Furthermore, the rear end of the sleeve rod behind the front sleeve rod is provided with a limit plug which can be detachably inserted into the inner cavity, so as to prevent the front sleeve rod from escaping from the inner cavity when the handle is shortened. When the handle is shortened, the rear end of the front sleeve rod presses against the limit plug of the rear sleeve rod, thereby limiting the front sleeve rod.

[0017] Furthermore, a positioning mechanism is provided between adjacent sleeve rods, and when the handle is extended, the adjacent sleeve rods are positioned by the positioning mechanism; when the handle is shortened, the adjacent sleeve rods are released from positioning.

[0018] Furthermore, the positioning mechanism includes: an elastic positioning piece protruding outwardly on the rear outer side wall of the front sleeve rod, and a positioning groove is provided on the front inner cavity side wall of the rear sleeve rod, and the elastic positioning piece is buckled into the positioning groove when the handle is extended; and the elastic positioning piece is disengaged from the positioning groove when the handle is shortened.

[0019] Furthermore, the elastic positioning member is a spring sheet.

[0020] Furthermore, a front window and a rear window are axially opened on the outer side wall of the rear part of the front sleeve rod, the spring sheet includes two arched parts, the two arched parts are connected by a connecting part, the rear end of the arched part on the rear side of the spring sheet is inserted into the rear window, the connecting part of the spring sheet rests on the side wall between the front window and the rear window, and the arched part on the front side of the spring sheet is arranged corresponding to the front window; when the handle is extended, the arched part on the front side of the spring sheet is buckled into the positioning groove; when the handle is shortened, the arched part on the front side of the spring sheet is pushed into the front window by the side wall of the rear sleeve rod.

[0021] Furthermore, the arched portion on the front side of the spring sheet is provided with an outwardly protruding buckle, and the buckle is buckled into the positioning groove when the handle is extended.

[0022] Furthermore, an anti-drop mechanism is provided between the sleeve rods to prevent the sleeve rods from being separated from each other when the handle is extended.

[0023] Furthermore, the anti-slip mechanism includes: a limiting step protruding outward is provided on the rear outer side wall of the front sleeve rod, and a limiting boss is provided on the front inner cavity side wall of the rear sleeve rod, and the limiting step can be against the limiting boss when the handle is extended.

[0024] The beneficial effect of the utility model is that the radial dimensions of the plurality of sleeve rods increase successively from the front to the rear, the sleeve rod at the rear has an inner cavity which penetrates along the axial direction, the sleeve rod at the front penetrates into the inner cavity from the tail of the adjacent sleeve rod at the rear and can penetrate out from the front end of the adjacent sleeve rod at the rear, so that the sleeve rod at the front can be telescopically inserted into the adjacent sleeve rod at the rear, all the sleeve rods can be installed in this way, and finally the locking piece can be installed, so the installation is more orderly and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model when the insert is unfolded.

[0026] Figure 2 yes Figure 1 Exploded diagram.

[0027] Figure 3 It is a structural schematic diagram of the utility model when the insert piece is folded.

[0028] Figure 4 yes Figure 3 It's an exploded view.

[0029] Figure 5 It is a partial cross-sectional view of the utility model when the sleeve rod is elongated.

[0030] Figure 6 yes Figure 5 A partial enlarged view of part A.

[0031] Figure 7 It is a partial cross-sectional view of the utility model when the sleeve rod is retracted.

[0032] Figure 8 yes Figure 7 A partial enlarged view of part B.

[0033] Fig. 9 It is a structural diagram of the sleeve rod.

[0034] Fig.10 This is a schematic diagram of the connection between the front sleeve rod and the insert.

[0035] Fig.11 It is a top view schematic diagram of the sleeve rod.

[0036] Fig.12 This is a state diagram after the sleeve rod is removed when the sleeve rod is retracted.

[0037] Fig.13 This is a diagram of the connection status of the front end of the front sleeve rod.

[0038] Fig.14 It is a connection status diagram of the front end of the other frontmost sleeve rod.

[0039] Fig.15 This is an exploded view of the connection status of the front end of the front sleeve rod.

[0040] Fig.16 This is an exploded view of the connection status of the front end of the front sleeve rod from another angle.

[0041] Fig.17 It is a cross-sectional view of the sleeve rod.

[0042] Fig.18 yes Fig.17 A partial enlarged view of part B.

[0043] Fig.19 This is another schematic diagram of the sleeve rod.

[0044] Fig. 20 yes Fig.19 A partial enlarged view of part C. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] Reference Figure 1-Figure 20 A duster rod comprises a retractable handle 1 and an insert 2 for sleeve-mounting a duster head. The handle 1 comprises a plurality of sleeve rods 3 sleeved with each other. The insert 3 is rotatably connected to the front end of the front sleeve rod 3' through a rotating shaft 4.

[0047] The radial dimensions of the plurality of sleeve rods 3 increase successively from front to back. The rear sleeve rod 3 has an inner cavity that penetrates along the axial direction. The front sleeve rod 3 penetrates into the inner cavity from the tail of the adjacent rear sleeve rod 3 and can penetrate out from the front end of the adjacent rear sleeve rod 3, so that the front sleeve rod 3 can be telescopically inserted into the adjacent rear sleeve rod 3.

[0048] The front end of the frontmost sleeve rod 3' is detachably fixedly connected with a lock 5. Since the lock 5 needs to perform the locking function, its size is relatively large. The size of the lock 5 is larger than the inner cavity size of the rear sleeve adjacent to the frontmost sleeve rod, so it can only be installed to the front end of the frontmost sleeve rod 3' after each sleeve rod 3 is installed. The tail of the insert 2 is provided with a connecting interlayer 6 and a locking mechanism. The lock 5 is arranged in the connecting interlayer 6 through the rotating shaft 4. The rotating shaft 4 is substantially perpendicular to the top wall and the bottom wall of the connecting interlayer 6. The locking mechanism at least partially extends into the connecting interlayer 6, and can lock and unlock the lock 5. In one embodiment, the fixing method of the lock 5 is: a groove 7 is provided on the upper surface or the lower surface of the lock 5, and the front end of the frontmost sleeve rod 3' is embedded in the groove 7, so that the frontmost sleeve rod 3' is fixedly connected with the lock 5. In one embodiment, the front end of the frontmost sleeve rod 3' is concave, and the concave portion 3'-1 of the front end of the frontmost sleeve rod 3' is embedded in the embedding groove 7, so that the front end of the frontmost sleeve rod provided with the locking element 5 and the remaining portion of the frontmost sleeve rod have substantially the same thickness, so that after the locking element 5 is provided, the front end of the frontmost sleeve rod 3' and the remaining portion of the frontmost sleeve rod 3' have substantially the same thickness, and the structure is compact.

[0049] In one embodiment, the rotating shaft 4 passes through the connecting interlayer 6 , the front end of the frontmost sleeve rod 3 ′, the locking member 5 , and the other side of the connecting interlayer 6 from one side of the connecting interlayer 6 .

[0050] In one embodiment, the locking mechanism is as follows: the locking mechanism includes a button 8 and an elastic member 9, wherein the elastic member 9 is disposed between the connecting interlayer 6 and the button 8, and under the action of the elastic member 9, the button 8 locks the locking member, so that the plug 2 cannot rotate; after the button 8 overcomes the elastic force of the elastic member 9 and moves, the button 8 disengages from the locking member 5, so that the plug 2 can rotate.

[0051] In one embodiment, the button 8 is disposed on the side of the lock 5, the pressing direction of the button 8 is the same as the axial direction of the rotating shaft 4, and a locking block 10 is protruding from the side of the button 8; a plurality of locking teeth 11 are disposed on the side of the lock 5, and a locking groove is formed between adjacent locking teeth 11, and the locking block 10 can enter or exit the locking groove by moving the button 8 to lock and unlock the lock 5. Alternatively, a plurality of locking teeth are disposed on the bottom edge of the lock, and a locking groove is formed between adjacent locking teeth, and the locking block of the button extends below the bottom edge of the lock, and the locking block can enter or exit the locking groove by moving the button to lock and unlock the lock.

[0052] In one embodiment, the locking member 5 is a circular rotating disk, the elastic member 9 is arranged between the bottom of the button 8 and the bottom of the connecting interlayer 6, the top of the connecting interlayer 6 is provided with a through hole for pressing the button 8, and the elastic member 9 is a spring.

[0053] In one embodiment, the rear end of the sleeve rod 3 behind the front sleeve rod 3' is provided with a limit plug 12 that can be detachably inserted into the inner cavity, which is used to prevent the front sleeve rod 3 from escaping from the inner cavity when the handle 1 is shortened. When the handle 1 is shortened, the rear end of the front sleeve rod 3 presses on the limit plug 12 of the rear sleeve rod 3, thereby limiting the front sleeve rod 3.

[0054] In one embodiment, a positioning mechanism is provided between adjacent sleeve rods 3, and when the handle is extended, the adjacent sleeve rods 3 are positioned by the positioning mechanism; when the handle is shortened, the adjacent sleeve rods 3 are released from positioning. Specifically, the positioning mechanism may be: an elastic positioning piece is provided on the rear outer side wall of the front sleeve rod 3, and a positioning groove 13 is provided on the front inner cavity side wall of the rear sleeve rod; when the handle is extended, the elastic positioning piece is buckled into the positioning groove 13; when the handle is shortened, the elastic positioning piece is disengaged from the positioning groove 13.

[0055] In one embodiment, the elastic positioning member is a spring sheet 14, and a front window 15 and a rear window 16 are axially opened on the rear outer side wall of the front sleeve rod. The spring sheet includes two arched portions, and the two arched portions are connected by a connecting portion. The rear end of the arched portion on the rear side of the spring sheet 14 is inserted into the rear window 16, and the connecting portion of the spring sheet rests on the side wall between the front window 15 and the rear window 16. The arched portion on the front side of the spring sheet is arranged corresponding to the front window 16; when the handle is extended, the arched portion on the front side of the spring sheet 14 is buckled into the positioning groove 13; when the handle is shortened, the arched portion on the front side of the spring sheet is pushed into the front window by the side wall of the sleeve rod at the rear.

[0056] In one embodiment, the arched portion on the front side of the spring sheet 14 is provided with an outwardly protruding buckle 17. When the handle is extended, the buckle 17 is buckled into the positioning groove 13 to effectively play a positioning role.

[0057] In one embodiment, an anti-slip mechanism is provided between the sleeve rods 3 to prevent the sleeve rods 3 from being detached from each other when the handle is extended. Specifically, the anti-slip mechanism may be: a limiting step 18 protruding outward is provided on the rear outer side wall of the front sleeve rod 3, and a limiting convex shoulder 19 is provided on the front inner cavity side wall of the rear sleeve rod, and the limiting step 18 can abut against the limiting convex shoulder 19 when the handle is extended.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above describes the implementation methods of the present invention. However, the present invention is not limited to the above implementation methods. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A duster rod, comprising a retractable handle and an insert for mounting a duster head, wherein the handle comprises a plurality of sleeve rods sleeved with each other, and the insert is rotatably connected to the front end of the front sleeve rod through a rotating shaft, characterized in that: The radial dimensions of the plurality of sleeve rods increase from front to back, the sleeve rod at the back has an inner cavity that penetrates along the axial direction, the sleeve rod at the front enters the inner cavity from the tail of the adjacent sleeve rod at the back and can pass out from the front end of the adjacent sleeve rod at the back, so that the sleeve rod at the front can be telescopically inserted into the adjacent sleeve rod at the back; The front end of the frontmost sleeve rod is detachably fixedly connected with a lock, the tail of the insert is provided with a connecting interlayer and a locking mechanism, the lock is arranged in the connecting interlayer through the rotating shaft, the rotating shaft is basically perpendicular to the top wall and the bottom wall of the connecting interlayer, the locking mechanism at least partially extends into the connecting interlayer, and can lock and unlock the lock.

2. The dust removal rod according to claim 1, characterized in that: The size of the locking element is larger than the inner cavity size of the rear sleeve adjacent to the frontmost sleeve rod.

3. The dust removal rod according to claim 1, characterized in that: The locking mechanism comprises a button and an elastic member, wherein the elastic member is arranged between the connecting interlayer and the button. Under the action of the elastic member, the button locks the lock member, so that the insert cannot rotate; after the button overcomes the elastic force of the elastic member and moves, the button is separated from the lock member, so that the insert can rotate.

4. The dust removal rod according to claim 3, characterized in that: The button is arranged on the side of the lock, the pressing direction of the button is the same as the axial direction of the rotating shaft, and a locking block is protruding from the side of the button. A plurality of locking teeth are provided on the side of the lock element, and a locking groove is formed between adjacent locking teeth. The locking block can enter or exit the locking groove by moving the button to lock and unlock the lock element. Alternatively, a plurality of locking teeth are provided on the bottom edge of the lock element, and a locking groove is formed between adjacent locking teeth. The locking block of the button extends below the bottom edge of the lock element. The locking block can enter or exit the locking groove by moving the button to lock and unlock the lock element.

5. The dust removal rod according to claim 3, characterized in that: The locking element is a round rotating disk. The elastic member is arranged between the bottom of the button and the bottom of the connecting interlayer, a through hole for pressing the button is provided on the top of the connecting interlayer, and the elastic member is a spring.

6. The dust removal rod according to claim 1, characterized in that: An embedding groove is provided on the upper surface or the lower surface of the locking element, and the front end of the frontmost sleeve rod is embedded in the embedding groove, so that the frontmost sleeve rod is fixedly connected to the locking element.

7. The dust removal rod according to claim 6, characterized in that: The rotating shaft passes through the connecting interlayer, the front end of the frontmost sleeve rod, the locking piece, and the other side of the connecting interlayer from one side of the connecting interlayer.

8. The dust removal rod according to claim 6, characterized in that: The front end of the frontmost sleeve rod is concave, and the concave part of the front end of the frontmost sleeve rod is embedded in the embedding groove, so that the front end of the frontmost sleeve rod with the locking element has a substantially equal thickness with the rest of the frontmost sleeve rod.

9. The dust removal rod according to any one of claims 1 to 8, characterized in that: The rear end of the sleeve rod behind the front sleeve rod is provided with a limit plug which can be detachably inserted into the inner cavity, so as to prevent the front sleeve rod from escaping from the inner cavity when the handle is shortened. When the handle is shortened, the rear end of the front sleeve rod presses against the limit plug of the rear sleeve rod, thereby limiting the front sleeve rod.

10. The dust removal rod according to any one of claims 1 to 8, characterized in that: A positioning mechanism is arranged between adjacent sleeve rods. When the handle is extended, the adjacent sleeve rods are positioned by the positioning mechanism; when the handle is shortened, the adjacent sleeve rods are released from positioning.

11. The dust removal rod according to claim 10, characterized in that: The positioning mechanism includes: an elastic positioning piece protruding outwardly on the rear outer side wall of the front sleeve rod, and a positioning groove on the front inner cavity side wall of the rear sleeve rod. When the handle is extended, the elastic positioning piece is buckled into the positioning groove; when the handle is shortened, the elastic positioning piece is separated from the positioning groove.

12. The dust removal rod according to claim 11, characterized in that: The elastic positioning member is a spring sheet.

13. The dust removal rod according to claim 12, characterized in that: A front window and a rear window are axially provided on the rear outer side wall of the front sleeve rod. The spring sheet includes two arched portions, the two arched portions are connected by a connecting portion, the rear end of the arched portion on the rear side of the spring sheet is inserted into the rear window, the connecting portion of the spring sheet is against the side wall between the front window and the rear window, and the arched portion on the front side of the spring sheet is arranged corresponding to the front window; When the handle is extended, the arched portion on the front side of the spring sheet is buckled into the positioning groove; when the handle is shortened, the arched portion on the front side of the spring sheet is pushed into the front window by the side wall of the rear sleeve rod.

14. The dust removal rod according to claim 12, characterized in that: The arched portion on the front side of the spring sheet is provided with an outwardly protruding buckle, and the buckle is buckled into the positioning groove when the handle is extended.

15. The dust removal rod according to any one of claims 1 to 8, characterized in that: An anti-drop mechanism is provided between the sleeve rods to prevent the sleeve rods from being separated from each other when the handle is extended.

16. The dust removal rod according to claim 15, characterized in that: The anti-drop mechanism comprises: a limiting step protruding outward is provided on the rear outer side wall of the front sleeve rod, and a limiting convex shoulder is provided on the front inner cavity side wall of the rear sleeve rod. When the handle is extended, the limiting step can be against the limiting convex shoulder.

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