Telescopic rod structure of cleaning device

Abstract

The utility model relates to a telescopic rod structure of a cleaning device, which comprises a telescopic rod component, the telescopic rod component comprises a small-outer-diameter rod, an external expansion piece and a large-inner-diameter pipe provided with a cylindrical hole, and the small-outer-diameter rod can enter the cylindrical hole; one end of the small-outer-diameter rod is provided with an external expansion abutting part and a screw rod, and the area of the cross section of the external expansion abutting part is gradually reduced in the direction from the small-outer-diameter rod to the large-inner-diameter pipe; the external expansion piece is arranged in the cylindrical hole; the external expansion piece is provided with a threaded hole and a plurality of external expansion arms with elasticity; the screw rod is connected with the threaded hole; the external expansion abutting part can abut against the external expansion arm so that the external expansion arm can move outwards. The device achieves the effects that the length of the telescopic rod assembly can be conveniently adjusted and locked, and the cleaning effect is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary tools for wiping glass and the like, and in particular to a telescopic rod structure of a cleaning device for a vehicle window and the like. Background Art

[0002] The telescopic rod structure of a traditional car window cleaning device includes a large inner diameter tube and a small outer diameter rod inserted into the large inner diameter tube, and one end of an outer sleeve is threadedly connected to the large inner diameter tube; the outer sleeve of the large inner diameter tube is rotated to make one end of the large inner diameter tube approach and abut against the small outer diameter rod, so that the small outer diameter rod is locked and loosened, which is relatively troublesome to operate.

[0003] A traditional vehicle window cleaning device includes a main wiping assembly, which includes a main wiping carrier; a wiping pad is provided on the main wiping carrier, and the connection between the main wiping assembly and an operating rod such as a telescopic rod structure is not detachable, resulting in limited usage scenarios.

[0004] Conventional window cleaning devices usually use a main wiping component to wipe the inside of the window, etc., and then wipe the outside of the window, etc. The wiping efficiency is low and the cleaning effect has room for improvement. Summary of the invention

[0005] An object of the present invention is to solve or alleviate the above technical problems.

[0006] The means adopted by the present invention is a telescopic rod structure of a cleaning device, which includes a telescopic rod assembly, the telescopic rod assembly includes a small outer diameter rod, an outward expansion piece and a large inner diameter tube provided with a cylindrical hole, the small outer diameter rod can enter the cylindrical hole; one end of the small outer diameter rod is provided with an outward expansion supporting portion and a screw rod, the cross-sectional area of ​​the outward expansion supporting portion gradually decreases from the small outer diameter rod toward the large inner diameter tube; the outward expansion piece is arranged in the cylindrical hole; the outward expansion piece is provided with a threaded hole and a plurality of elastic outward expansion arms; the screw rod is connected to the threaded hole; the outward expansion supporting portion can support the outward expansion arm to move the outward expansion arm outward.

[0007] The effect achieved by the present invention is that the length of the telescopic rod assembly can be conveniently adjusted and locked to ensure a cleaning effect.

[0008] According to a further technical solution, the screw rod is provided with an idle section to form a pre-connection section and an axial movement section respectively located on both sides of the idle section, and the axial length of the idle section is smaller than the axial length of the threaded hole.

[0009] It can prevent the small outer diameter rod from excessively rotating to cause the outward expansion abutment portion and / or the screw rod to be exposed from the cylindrical hole of the large inner diameter tube.

[0010] According to a further technical solution, a damping arm with elasticity is arranged at the other end of the external expansion member, and the damping arm abuts against the inner wall of the cylindrical hole.

[0011] The reliability of the telescopic rod assembly can be improved.

[0012] According to a further technical solution, the telescopic rod assembly also includes a nut, and the outer expansion member split body is provided with a nut groove; the nut abuts against the inner wall of the nut groove, and a threaded hole is provided on the nut.

[0013] The cost of the telescopic rod assembly can be reduced.

[0014] According to a further technical solution, the thickness of the nut is smaller than the axial length of the idle section.

[0015] It can prevent the small outer diameter rod from excessively rotating to cause the outward expansion abutment portion and / or the screw rod to be exposed from the cylindrical hole of the large inner diameter tube.

[0016] According to a further technical solution, the telescopic rod assembly also includes an elastic ring, and the external expansion member includes a plurality of external expansion member split bodies made of plastic; the external expansion member split bodies are all provided with elastic ring grooves, and the elastic rings press against the inner walls of the elastic ring grooves so that the two ends of each external expansion member split body are aligned respectively.

[0017] The injection mold can be simplified to reduce costs, and the assembly of external expansion parts is also convenient.

[0018] According to a further technical solution, the external expansion component is divided into two parts.

[0019] A further technical solution is that the small outer diameter rod is tubular, and the telescopic rod assembly also includes an outward expansion abutment; one end of the outward expansion abutment is a small outer diameter rod connecting part embedded in the small outer diameter rod and fixedly connected to the small outer diameter rod; the outward expansion abutment part is arranged on the outward expansion abutment.

[0020] Facilitates the production of telescopic rod assemblies.

[0021] According to a further technical solution, an outer sleeve is sleeved on one end of the large inner diameter tube, one end of the outer sleeve is in close contact with or close to the small outer diameter rod, and the outwardly expanded abutment member is provided with a limiting edge that exceeds the outer wall of the small outer diameter rod.

[0022] It can prevent the small outer diameter rod from shaking relative to the large inner diameter tube, and can also prevent the small outer diameter rod from excessively rotating to cause the outward expansion abutment portion and / or the screw rod to be exposed from the cylindrical hole of the large inner diameter tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a vehicle window cleaning device according to an embodiment of the present invention Figure 1 .

[0024] Figure 2 Schematic diagram of a vehicle window cleaning device according to an embodiment of the present invention Figure 2 .

[0025] Figure 3 Schematic diagram of a three-dimensional decomposition of a vehicle window cleaning device according to an embodiment of the present invention Figure 1 .

[0026] Figure 4 Schematic diagram of a three-dimensional decomposition of a vehicle window cleaning device according to an embodiment of the present invention Figure 2 .

[0027] Figure 5 Schematic diagram of a telescopic rod assembly 1 according to an embodiment of the present invention Figure 1 .

[0028] Figure 6 Schematic diagram of a three-dimensional exploded view of a connection assembly 2 according to an embodiment of the present invention Figure 1 .

[0029] Figure 7 Schematic diagram of a three-dimensional exploded view of a connection assembly 2 according to an embodiment of the present invention Figure 2 .

[0030] Figure 8 1 is a half-section perspective schematic diagram of the fixing frame 22 according to the embodiment of the present invention.

[0031] Fig. 9 Schematic diagram of the main wiping component 3 and the magnetic attraction structure 5 of the embodiment of the present invention Figure 1 .

[0032] Fig.10 Schematic diagram of the main wiping component 3 and the magnetic attraction structure 5 of the embodiment of the present invention Figure 2 .

[0033] Fig.11 It is a perspective exploded schematic diagram of the auxiliary wiping assembly 4 according to an embodiment of the present invention.

[0034] Fig.12 Schematic diagram of a vehicle window cleaning device according to an embodiment of the present invention; line LINE1 represents a boundary line of a corner of the vehicle window.

[0035] Fig.13 It is a schematic diagram of a cross section SEC1.

[0036] Fig.14 This is a schematic diagram of detail 1 DTL1.

[0037] Fig.15 This is a schematic diagram of detail 2 DTL2.

[0038] Fig.16 This is a schematic diagram of section 2 SEC2.

[0039] Designate the drawings in the specification Fig.14 Attached is the abstract.

[0040] Section 1 SEC1; Section 2 SEC2; Detail 1 DTL1; Detail 2 DTL2; Line 1 LINE1; Telescopic rod assembly 1; Large inner diameter tube 11; Cylindrical hole 111; Anti-slip sleeve 119; Small outer diameter rod 12; Outward expansion support portion 121; Screw 122; Idle section 123; Pre-connection section 124; Axial movement section 125; Outward expansion piece 13; Outward expansion arm 131; Threaded hole 132; Deformation gap 133; Damping arm 134; Outward expansion support piece 14; Small outer diameter rod connection portion 142; Limiting edge 143; Outward expansion piece segment 15; Nut groove 151; Nut 152; Elastic ring groove 153; Elastic ring 154; Outer sleeve 19; Connecting assembly 2; Connecting frame 21; Connecting tube 211; Connecting buckle 212; Surrounding wall 213; Anti-rotation protrusion 214; Fixing frame 22; Connecting tube hole 2 21; snap groove 222; bottom wall 223; unlocking member 23; limiting head 231; reset elastic member 232; pressing portion 233; handle 24; rod connecting member 29; main wiping assembly 3; main wiping carrier 31; movable member 311; movable member limiting column 312; limiting column passing hole 313; main wiping cover 32; movable member limiting hole 322; auxiliary wiping assembly 4; auxiliary wiping carrier 41; auxiliary wiping cover 42; pull ring ear 49; magnetic attraction structure 5; first magnetic pole 51; second magnetic pole 52; magnetic body 53; adsorbed body 54; angle adjustment member 55; magnetic body mounting plate 551; angle adjustment body 552; stabilizing elastic member 553; balancing body 554; adjusting body limiting groove 555; quick adjustment member 56; abutment platform 561; transition slope 562; toggle ear 569; vehicle window glass 8; wiping pad 9. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention will be described below with reference to the accompanying drawings.

[0042] As a specific embodiment, the vehicle window cleaning device according to the embodiment of the present invention includes a telescopic rod assembly 1 , a connecting assembly 2 and a main wiping assembly 3 .

[0043] The main wiping assembly 3 comprises a main wiping carrier 31 ; a wiping pad 9 is arranged on the main wiping carrier 31 . The wiping pad 9 is usually made of conventional materials such as flannel to facilitate wiping the vehicle window glass 8 .

[0044] As one of the specific implementations, the main wiping carrier 31 and the wiping pad 9 are both in the shape of an equilateral triangle (one corner has an angle of 60 degrees) when viewed from above. Fig.12 As shown, the main wiping carrier 31 and the wiping pad 9 can easily enter a corner (roughly 90 degrees) of the vehicle window, making it easier to wipe and clean the corner of the vehicle window.

[0045] The telescopic rod assembly 1 includes a small outer diameter rod 12, an outer expansion piece 13, and a large inner diameter tube 11 provided with a cylindrical hole 111, and the small outer diameter rod 12 can enter the cylindrical hole 111. An anti-slip sleeve 119 is fixedly provided at one end of the large inner diameter tube 11, and the anti-slip sleeve 119 can firmly hold one end of the large inner diameter tube 11, and a large force is applied to the main wiping assembly 3 through the telescopic rod assembly 1 to wipe and clean the car window, etc.

[0046] An outward expansion abutment portion 121 and a screw rod 122 are provided at one end of the small outer diameter rod 12. The cross-section area of ​​the outward expansion abutment portion 121 (a cross-section taken by a plane perpendicular to the axis of the cylindrical hole 111) gradually decreases from the small outer diameter rod 12 toward the large inner diameter tube 11. For example, the outward expansion abutment portion 121 is truncated cone-shaped or as shown in FIG. Figure 5 The drum shape shown (a shape formed by a truncated cone with slightly convex side walls).

[0047] The expansion piece 13 is disposed in the cylindrical hole 111 .

[0048] The expansion piece 13 is provided with a threaded hole 132 and a plurality of elastic expansion arms 131. Usually, a deformation gap 133 is provided between two adjacent expansion arms 131 to allow the expansion arms 131 to deform or increase the deformation allowed by the expansion arms 131.

[0049] The screw rod 122 is connected to the threaded hole 132 .

[0050] The outward-expanding abutting portion 121 can abut against the outward-expanding arm 131 to move the outward-expanding arm 131 outward.

[0051] The working principle is that when the length of the telescopic rod assembly 1 needs to be adjusted, the large inner diameter tube 11 is rotated forward, and the screw 122 is rotated forward relative to the threaded hole 132 to make the outward expansion abutment portion 121 move away from the outward expansion arm 131, so that the outward expansion arm 131 is reset inward and separated from the inner wall of the cylindrical hole 111. At this time, there is no friction or the friction is very small between the outward expansion arm 131 and the inner wall of the cylindrical hole 111, and the small outer diameter rod 12 can be moved relative to the large inner diameter tube 11 along the axis of the cylindrical hole 111, thereby adjusting the length of the telescopic rod assembly 1.

[0052] After adjusting the length of the telescopic rod assembly 1 to the required length, the large inner diameter tube 11 is rotated in the opposite direction, and the screw 122 is rotated in the opposite direction relative to the threaded hole 132, so that the outward expansion abutting portion 121 is close to the outward expansion arm 131 and abuts against the outward expansion arm 131, so that the outward expansion arm 131 moves outward and abuts against the inner wall of the cylindrical hole 111. At this time, the outward expansion arm 131 abuts against the inner wall of the cylindrical hole 111 to generate a large friction force, and the small outer diameter rod 12 cannot move relative to the large inner diameter tube 11 and is locked, so that a large force can be applied to the main wiping assembly 3 through the telescopic rod assembly 1 to wipe and clean the car windows, etc., to ensure the cleaning effect.

[0053] It can be seen from the above that the telescopic rod assembly 1 of the present invention can conveniently adjust the length of the telescopic rod assembly 1 and lock it to ensure the cleaning effect.

[0054] As one of the specific implementations, the screw rod 122 is provided with an idle section 123 to form a pre-connection section 124 and an axial movement section 125 respectively located on both sides of the idle section 123, and the axial length (the length along the axis of the cylindrical hole 111) of the idle section 123 is less than the axial length of the threaded hole 132. It is easy to understand that the idle section 123 has no thread and can idle in the threaded hole 132. When the small outer diameter rod 12 is rotated forwardly relative to the large inner diameter tube 11, the pre-connection section 124 is first screwed into the threaded hole 132 until the idle section 123 is opposite to the threaded hole 132. At this time, continuing to rotate the small outer diameter rod 12 forwardly relative to the large inner diameter tube 11 can make the outward expansion abutment portion 121 approach the outward expansion arm 131; but when the small outer diameter rod 12 is rotated reversely relative to the large inner diameter tube 11 until the idle section 123 is opposite to the threaded hole 132, this cannot make the small outer diameter rod 12 continue to move away from the outward expansion arm 131, thereby preventing the small outer diameter rod 12 from excessively rotating and causing the outward expansion abutment portion 121 and / or the screw rod 122 to be exposed from the cylindrical hole 111 of the large inner diameter tube 11.

[0055] As one of the specific implementations, the other end of the outer expansion piece 13 (i.e., the outer expansion piece 13 is provided) is provided with an elastic damping arm 134, and the damping arm 134 abuts against the inner wall of the cylindrical hole 111. The damping arm 134 abuts against the inner wall of the cylindrical hole 111 to generate friction, so that a damping force is generated between the outer expansion piece 13 and the large inner diameter tube 11. When the large inner diameter tube 11 is placed vertically, even if the length of the telescopic rod assembly 1 is adjusted to separate the outer expansion arm 131 from the inner wall of the cylindrical hole 111, the outer expansion piece 13 can still be kept in the large inner diameter tube 11, thereby improving the reliability of the telescopic rod assembly 1.

[0056] As one of the specific embodiments, the telescopic rod assembly 1 further includes a nut 152, and the outer expansion member segment 15 is provided with a nut groove 151; the nut 152 abuts against the inner wall of the nut groove 151, and the threaded hole 132 is provided on the nut 152. The nut 152 is a standard part manufactured in batches, which can reduce the cost of the telescopic rod assembly 1.

[0057] As one of the specific implementations, the thickness of the nut 152 is smaller than the axial length of the idle section 123 , which can prevent the small outer diameter rod 12 from excessively rotating and causing the outwardly expanded abutting portion 121 and / or the screw rod 122 to be exposed from the cylindrical hole 111 of the large inner diameter tube 11 .

[0058] As one of the specific embodiments, the telescopic rod assembly 1 further includes an elastic ring 154, and the external expansion member 13 includes a plurality of external expansion member segments 15 made of plastic; it is easy to understand that the plurality of external expansion member segments 15 enclose the external expansion member 13; the external expansion member segments 15 are all provided with elastic ring grooves 153, and the elastic rings 154 abut against the inner wall of the elastic ring grooves 153 so that the two ends of each external expansion member segment 15 are aligned. For example, the elastic ring 154 is a rubber ring with a circular cross section, and the cross section of the portion of the elastic ring groove 153 closest to the axis of the cylindrical hole 111 is a semicircular, and the diameter of the semicircular cross section is substantially equal to that of the circular cross section of the elastic ring 154, and the elastic force of the elastic ring 154 makes the two ends of each external expansion member segment 15 aligned. The external expansion member segment 15 has no closed hole, which can simplify its injection mold and reduce costs, and is also convenient for assembling the external expansion member 13.

[0059] As one of the specific implementations, the number of the outer expansion member division bodies 15 is two.

[0060] As one of the specific implementations, the small outer diameter rod 12 is tubular, and the telescopic rod assembly 1 further includes an outward expansion abutment 14; one end of the outward expansion abutment 14 is a small outer diameter rod connecting portion 142 embedded in the small outer diameter rod 12 and fixedly connected to the small outer diameter rod 12; and the outward expansion abutment 121 is arranged on the outward expansion abutment 14. This facilitates the production of the telescopic rod assembly 1.

[0061] As one of the specific implementations, an outer sleeve 19 is sleeved on one end of the large inner diameter tube 11, and one end of the outer sleeve 19 is in contact with or close to the small outer diameter rod 12. The outward expansion abutment 14 is provided with a limiting edge 143 that exceeds the outer wall of the small outer diameter rod 12. It is easy to understand that the extent by which the outward expansion abutment 14 exceeds the outer wall of the small outer diameter rod 12 is usually small. This can prevent the small outer diameter rod 12 from shaking relative to the large inner diameter tube 11, and can also prevent the small outer diameter rod 12 from excessively rotating to cause the outward expansion abutment 121 and / or the screw 122 to be exposed from the cylindrical hole 111 of the large inner diameter tube 11.

[0062] The connection assembly 2 includes a connection frame 21, an unlocking member 23, and a fixing frame 22 for being fixedly connected to the main wiping carrier 31, for example, the fixing frame 22 is fixedly connected to the main wiping carrier 31 by screws, etc. For example, the connection assembly 2 also includes an operating rod (the operating rod is a rod-shaped object for holding operation, and the operating rod includes a telescopic rod assembly 1, so it can be telescopic, but it does not necessarily have to be telescopic), and the connection frame 21 is hinged with a rod connecting member 29, and the operating rod is detachably fixedly connected to the rod connecting member 29.

[0063] The connecting frame 21 is provided with a connecting tube 211, and a connecting buckle 212 with elasticity from top to bottom is provided on the side wall of the connecting tube 211. It is easy to understand that the connecting buckle 212 is long and strip-shaped as a whole, and its top end is connected to the side wall of the connecting tube 211, and the lower part is separated from the side wall of the connecting tube 211, so that the connecting buckle 212 is arranged from top to bottom.

[0064] The fixing frame 22 is provided with a connecting hole 221 , and a buckle groove 222 is formed on a side wall of the connecting hole 221 .

[0065] A limiting head 231 is fixedly disposed at the bottom end of the unlocking member 23 , and a diameter of the limiting head 231 is greater than a diameter of the unlocking member 23 .

[0066] The connecting tube 211 is inserted into the connecting tube hole 221 so that a portion of the connecting buckle 212 is located in the buckle groove 222 . It is easy to understand that the portion of the connecting buckle 212 located in the buckle groove 222 is usually a trapezoidal protrusion.

[0067] The unlocking member 23 is located in the connecting tube 211 and is linearly slidably connected to the connecting tube 211 , so that there is an overlapping portion in height between the limiting head 231 and the portion of the connecting buckle 212 located in the buckle groove 222 .

[0068] The working principle is that when the fixing frame 22 needs to be connected to the connecting frame 21 for use (for example, when the front window of the vehicle is far away from the user, it is usually necessary to extend the distance from the user to the main wiping component 3 through the operating rod), the connecting buckle 212 has a portion located in the buckle groove 222 ( Fig.16 The limit head 231 and the portion of the connecting buckle 212 overlap in height. At this time, the connecting cylinder 211 cannot be withdrawn from the connecting cylinder hole 221, and the unlocking member 23 is in a locked state. Even if the connecting cylinder 211 is moved upward, the limit head 231 limits the movement of the portion of the connecting buckle 212 located in the buckle groove 222. The connecting buckle 212 cannot be deformed and cannot be moved out of the buckle groove 222, and the locked state is relatively stable.

[0069] When the fixing frame 22 needs to be removed from the connecting frame 21 (for example, the window glass 8 on the door is close to the user, and the operating rod is generally not needed), the unlocking member 23 is moved so that the limit head 231 and the part of the connecting buckle 212 located in the buckle groove 222 are offset. At this time, the unlocking member 23 is in the unlocking state and the connecting buckle 212 is allowed to be elastically deformed, so that the connecting tube 211 can be moved upward to separate the connecting frame 21 from the fixing frame 22. On the contrary, moving the connecting frame 21 downward can insert the connecting tube 211 into the connecting tube hole 221 and reset to the locked state.

[0070] It can be seen from the above that the connection assembly 2 of the present invention can realize the rapid disassembly and assembly between the connection frame 21 and the fixing frame 22, so as to facilitate adjustment according to different usage scenarios.

[0071] As one of the specific embodiments, the connection assembly 2 further includes a reset elastic member 232, one end of which is connected to the unlocking member 23, and the other end is directly or indirectly connected to the connecting frame 21, so that the unlocking member 23 has a tendency to move upward relative to the connecting frame 21 in the locked state, and the unlocking member 23 is located at the highest position relative to the connecting frame 21 at this time. For example, the protrusion of the unlocking member 23 (not shown in the drawings of this embodiment) abuts against the inner wall of the groove on the connecting frame 21 (not shown in the drawings of this embodiment), so that the unlocking member 23 has a tendency to move upward relative to the connecting frame 21 in the locked state, and the unlocking member 23 is located at the highest position relative to the connecting frame 21 at this time; of course, it can also be achieved in the following manner. Moving the unlocking member 23 downward allows the unlocking member 23 to automatically reset after being unlocked, which is more convenient; even if the unlocking member 23 is accidentally touched, the unlocking member 23 is not easy to unlock or reset immediately after being unlocked due to the elastic force of the reset elastic member 232, and it can also ensure that it is relatively stable in the locked state. Of course, when the fixing frame 22 is connected to the connecting frame 21 , it is usually necessary to move the unlocking member 23 downward, but it is not necessary to move the unlocking member 23 downward, for example, the connecting buckle 212 can be provided with a smaller serrated protrusion to achieve this.

[0072] As one of the specific implementations, the bottom end of the connecting tube 211 is connected to the outside, and the connecting tube hole 221 is provided with a bottom wall 223. When the unlocking member 23 is moved downward to unlock, the lower end of the unlocking member 23 abuts against the bottom wall 223 to separate the fixing frame 22 from the connecting frame 21, that is, one pressing operation (i.e., moving the unlocking member 23 downward) can realize the unlocking and separation between the connecting frame 21 and the fixing frame 22, which is more convenient.

[0073] As one of the specific implementations, the connecting frame 21 is fixedly provided with a handle 24, and the unlocking member 23 is completely located in the handle 24 when viewed along the unlocking member 23. For example, the handle 24 is oval when viewed along the unlocking member 23, and the handle 24 is egg-shaped as a whole. The handle 24 can be conveniently held for wiping.

[0074] As one of the specific implementations, a pressing portion 233 is provided at the top of the unlocking member 23, and the pressing portion 233 is inserted into the handle 24. The resetting elastic member 232 is a spring sleeved on the unlocking member 23, and the two ends are respectively against the pressing portion 233 and the handle 24, and the pressing portion 233 is also provided with a buckle against the handle 24. Usually, the pressing portion 233 and the handle 24 are surrounded by an egg shape as a whole, and the cross section of the pressing portion 233 is an ellipse as a whole. The depth of the hole on the handle 24 for accommodating the pressing portion 233 is greater than the thickness of the pressing portion 233, so as to allow the pressing portion 233 to move downward.

[0075] As one of the specific implementations, the connecting tube 211 and the connecting tube hole 221 are both cylindrical and fit together, and the fixing frame 22 can rotate relative to the connecting frame 21 to facilitate adjustment of the angle of the main wiping assembly 3 described later.

[0076] As one of the specific implementations, the connecting frame 21 is provided with an anti-rotation protrusion 214 capable of limiting the rotation of the fixing frame 22. Fig.15 As shown, the anti-rotation protrusion 214 can be fixed on the connecting frame 21, or can be a structure that can move up and down (not shown in the drawings), the anti-rotation protrusion 214 moves downward to be inserted into the fixing frame 22 to limit the rotation of the fixing frame 22, and moves upward to be withdrawn from the fixing frame 22 to allow the fixing frame 22 to rotate, and can rotate the fixing frame 22 as needed. Of course, the structure of the anti-rotation protrusion 214 can be used to prevent the handle 24 from rotating relative to the connecting frame 21.

[0077] As one of the specific implementations, the cross section of the fixing frame 22 is circular, for example, the fixing frame 22 is cylindrical as a whole, or is as follows: Fig.15 The cross section shown is in the shape of an I. The connecting frame 21 is provided with a surrounding wall 213 which is in contact with the side wall of the fixing frame 22, so as to improve the connection strength between the connecting frame 21 and the fixing frame 22.

[0078] The vehicle window cleaning device of the embodiment of the present invention further includes an auxiliary wiping component 4 and a magnetic attraction structure 5 .

[0079] The magnetic attraction structure 5 includes an adsorbed body 54, an angle adjustment member 55, and a magnetic body 53. The magnetic body 53 is usually a magnet with strong magnetic properties such as a neodymium iron boron magnet.

[0080] The auxiliary wiping assembly 4 includes an auxiliary wiping carrier 41 provided with an adsorbed body 54, and a wiping pad 9 is provided on the auxiliary wiping carrier 41. The adsorbed body 54 can be an object that does not have magnetism itself, such as an iron block, or can be an object that has magnetism, such as a magnet, so that the adsorbed body 54 can be adsorbed by the magnetic body 53. In addition, the situation where the auxiliary wiping carrier 41 can be adsorbed by the magnetic body 53 as a whole or in part also belongs to the situation where the auxiliary wiping carrier 41 is provided with the adsorbed body 54.

[0081] The angle adjustment member 55 includes a magnetic body mounting plate 551 and an angle adjustment body 552. The magnetic body 53 is fixed on the magnetic body mounting plate 551 and fits with the main wiping carrier 31, such as being embedded in the magnetic body mounting plate 551 and fixed by glue. When the magnetic body 53 fits with the main wiping carrier 31, the magnetic body 53 is in a strong suction state. It is easy to understand that when the magnetic body 53 is in a strong suction state, the magnetic body 53 overlaps with the main wiping carrier 31, and is not tilted relative to the main wiping carrier 31.

[0082] The angle adjustment member 55 is directly or indirectly movably connected to the main wiping carrier 31 . The angle adjustment member 552 can drive the magnetic body 53 to move so that the magnetic body 53 is tilted relative to the main wiping carrier 31 .

[0083] The magnetic body 53 can adsorb the adsorbed body 54 so that the wiping pad 9 of the auxiliary wiping carrier 41 has a tendency to approach the main wiping assembly 3. Of course, the magnetic body 53 and the adsorbed body 54 can also be arranged in reverse, that is, the magnetic body 53 is arranged on the auxiliary wiping carrier 41, and the adsorbed body 54 is arranged on the main wiping carrier 31.

[0084] The working principle is as follows: Fig.15 As shown, when it is necessary to wipe and clean the inside and outside of the vehicle window glass 8 at the same time, the magnetic body 53 is first tilted relative to the main wiping carrier 31 through the angle adjustment body 552. At this time, the magnetic field angle of the magnetic body 53 changes, and the suction force on the auxiliary wiping carrier 41 is reduced. A small force can be applied to separate the auxiliary wiping component 4 from the main wiping component 3.

[0085] After the auxiliary wiping assembly 4 is separated from the main wiping assembly 3, the auxiliary wiping assembly 4 and the main wiping assembly 3 are moved to the two sides of the vehicle window glass 8 respectively. Usually, the auxiliary wiping assembly 4 is located on the inner side of the vehicle window glass 8, and the main wiping assembly 3 is located on the outer side of the vehicle window glass 8. Then, the auxiliary wiping assembly 4 and the main wiping assembly 3 are close to each other, and the auxiliary wiping assembly 4 is adsorbed by the magnetic body 53 so that the wiping pad 9 of the main wiping assembly 3 and the wiping pad 9 of the auxiliary wiping assembly 4 clamp the vehicle window glass 8. At this time, while the main wiping assembly 3 is moved to wipe the outer side of the vehicle window glass 8, the auxiliary wiping assembly 4 is on the inner side of the vehicle window glass 8 as the main wiping assembly 3 moves to wipe the inner side of the vehicle window glass 8. The inner and outer sides of the vehicle window glass 8 can be wiped and cleaned in one wiping process, which is more convenient. Moreover, due to the adsorption force between the auxiliary wiping assembly 4 and the main wiping assembly 3, the wiping pad 9 of the auxiliary wiping assembly 4 and the wiping pad 9 of the main wiping assembly 3 can both press the vehicle window glass 8, which can improve the cleaning effect of the vehicle window glass 8. Of course, after the main wiping assembly 3 is separated from the auxiliary wiping assembly 4, the vehicle window glass 8 can be wiped by the main wiping assembly 3 alone as needed.

[0086] After wiping the vehicle window glass 8 is completed, the magnetic body 53 is tilted relative to the main wiping carrier 31 by the angle adjustment body 552 , so that the auxiliary wiping assembly 4 can be separated from the main wiping assembly 3 .

[0087] It can be seen from the above that the vehicle window cleaning device of the embodiment of the present invention can improve the wiping efficiency and cleaning effect of the vehicle window glass 8 and facilitate the separation between the main wiping component 3 and the auxiliary wiping component 4.

[0088] As one of the specific implementations, there are multiple magnetic bodies 53 and angle adjustment members 55. For example, there are three magnetic bodies 53 and three angle adjustment members 55, and the three magnetic bodies 53 are respectively located at the three corners of the main wiping carrier 31 of the equilateral triangle. The magnetic attraction structure 5 also includes a quick adjustment member 56 that is directly or indirectly connected to the main wiping carrier 31 for rotation. The quick adjustment member 56 is provided with multiple abutment platforms 561; there is a height difference between two adjacent abutment platforms 561 and they are connected by a transition slope 562, and the angle adjustment body 552 is in contact with at least one of the multiple abutment platforms 561. It is easy to understand that the transition slope 562 is an inclined surface, so when the quick adjustment member 56 is rotated, the angle adjustment body 552 can move along the transition slope 562. For example, the quick adjustment member 56 is cylindrical as a whole and fits with the main wiping cover 32 described later, so that the quick adjustment member 56 is indirectly connected to the main wiping carrier 31 by rotation. For example, the quick adjustment member 56 is cylindrical as a whole and is embedded in the round hole of the main wiping carrier 31, so that the quick adjustment member 56 is directly connected to the main wiping carrier 31 by rotation. The multiple magnetic bodies 53 can be tilted by rotating the quick adjustment member 56, so as to more efficiently adjust the tilt angle of the magnetic bodies 53. Usually, the quick adjustment member 56 is provided with a toggle ear 569 to facilitate the rotation of the quick adjustment member 56.

[0089] As one of the specific implementations, the heights of the plurality of abutting platforms 561 are increased in sequence. By rotating the quick adjustment member 56, the height of the angle adjustment body 552 relative to the main wiping carrier 31 can be adjusted, so that the inclination angle of the angle adjustment member 55 and the magnetic body 53 can be adjusted and known, and the suction force of the magnetic body 53 on the adsorbed body 54 can be adjusted as needed.

[0090] As one of the specific implementations, the magnetic body 53 and the adsorbed body 54 completely overlap when viewed from above; for example, the magnetic body 53 and the adsorbed body 54 are cylindrical magnets with the same diameter or rectangular magnets with the same size; the multiple magnetic bodies 53 and the angle adjustment member 55 are evenly distributed around the rotation axis of the quick adjustment member 56. It is easy to understand that the adsorbed body 54 is evenly distributed around the rotation axis of the quick adjustment member 56. After the rotating support platform 561 causes the multiple magnetic bodies 53 to tilt, the tilting sentences of the multiple support platforms 561 are toward the rotation axis of the quick adjustment member 56. Accordingly, the suction force on the multiple adsorbed bodies 54 has a vector toward the rotation axis of the quick adjustment member 56, so that the adsorbed body 54 has a tendency to be centered (the adsorbed body 54 moves toward the rotation axis of the quick adjustment member 56), which can ensure that the relative position of the two is stable when the main wiping component 3 adsorbs the auxiliary wiping component 4. Of course, the magnetic body 53 and the adsorbed body 54 can be swapped.

[0091] As one of the specific implementations, the main wiping assembly 3 further includes a main wiping cover 32 fixedly connected to the main wiping carrier 31; the main wiping cover 32 and / or the main wiping carrier 31 are provided with an adjustment body limiting groove 555, and both sides of the angle adjustment body 552 are respectively fitted in the adjustment body limiting groove 555. The adjustment body limiting groove 555 can prevent the angle adjustment body 552 from shaking left and right (moving back and forth at both sides of the vertical angle adjustment body 552), thereby improving the stability of the magnetic attraction structure 5.

[0092] As one of the specific embodiments, the main wiping assembly 3 also includes a main wiping cover 32 fixedly connected to the main wiping carrier 31; the magnetic attraction structure 5 also includes a stabilizing elastic member 553, and the stabilizing elastic member 553 is respectively connected to the angle adjustment body 552 and the main wiping carrier 31, or the stabilizing elastic member 553 is respectively connected to the angle adjustment body 552 and the main wiping cover 32, so that the angle adjustment body 552 has a tendency to approach the main wiping carrier 31. It is easy to understand that the angle adjustment body 552 also has a tendency to approach the abutment platform 561 under the action of the stabilizing elastic member 553. When the main wiping assembly 3 is separated from the auxiliary wiping assembly 4, the magnetic body 53 on the main wiping assembly 3 will not be affected by the force of the adsorbed body 54 and will shake up and down (move up and down along the axis of the quick adjustment member 56) to produce problems such as impact sound. The stabilizing elastic member 553 can prevent the magnetic body 53 and the angle adjustment member 55 from shaking up and down and improve the stability of the magnetic attraction structure 5.

[0093] As one of the specific implementations, the magnetic body mounting plate 551 is fixedly provided with a balancing body 554, and the angle adjustment body 552 and the balancing body 554 are respectively located on both sides of the magnetic body mounting plate 551, and the lower end of the balancing body 554 abuts against the main wiping cover 32 or the main wiping carrier 31. The angle adjustment member 55 can be ensured to be balanced and the stability of the magnetic attraction structure 5 can be improved; in addition, when the quick adjustment member 56 is rotated, the magnetic body 53 can be separated from the main wiping carrier 31, and it is also convenient to separate the main wiping component 3 and the auxiliary wiping component 4.

[0094] As one of the specific embodiments, the adsorbed body 54 has magnetism, and the first magnetic pole 51 (for example, the N pole) of the magnetic body 53 faces the second magnetic pole 52 (for example, the S pole) of the adsorbed body 54 .

[0095] As one of the specific implementations, the auxiliary wiping carrier 41 is connected with an auxiliary wiping cover 42 and / or a pull ring ear 49. The pull ring ear 49 can assist in separating the main wiping assembly 3 and the auxiliary wiping assembly 4 by passing a rope or the like through the pull ring ear 49.

[0096] As one of the specific embodiments, the main wiping assembly 3 also includes a plurality of movable parts 311, and the movable parts 311 are movably connected to the main wiping carrier 31, for example, the movable parts 311 are connected to the main wiping carrier 31 through a universal head [not shown in the drawings of this embodiment], so that the movable parts 311 and the main wiping carrier 31 remain connected but not separated, and the movable parts 311 can move relative to the main wiping carrier 31 to change the tilt angle relative to the main wiping carrier 31; the wiping pad 9 is connected to the main wiping carrier 31 through the movable parts 311, and it is easy to understand that the connection of the wiping pad 9 to the main wiping carrier 31 through the movable parts 311 also belongs to one of the situations where the wiping pad 9 is provided on the main wiping carrier 31. For the vehicle window glass 8 that is slightly convex or concave as a whole, the movable part 311 is slightly tilted relative to the main wiping carrier 31 to eliminate or reduce the gap between the wiping pad 9 and the vehicle window glass 8, which can ensure that the wiping pad 9 on the movable part 311 fits the slightly convex or concave vehicle window glass 8 and ensure a full cleaning effect. When the main wiping assembly 3 and the auxiliary wiping assembly 4 are mutually attracted, the wiping pad 9 on the movable part 311 fits the slightly convex or slightly concave window glass 8, ensuring a more obvious full cleaning effect. Of course, those skilled in the art can easily think of using this technical solution on the auxiliary wiping assembly 4.

[0097] As one of the specific implementations, the movable part 311 is fixedly provided with a movable part limiting column 312; the main wiping carrier 31 is provided with a limiting column through hole 313 with a cross-sectional area larger than the movable part limiting column 312 [for example, the inner diameter of the limiting column through hole 313 is larger than the outer diameter of the movable part limiting column 312], and the movable part limiting column 312 passes through the limiting column through hole 313; and / or, the main wiping cover 32 is provided with a movable part limiting hole 322 with a cross-sectional area larger than the movable part limiting column 312 [for example, the movable part limiting hole 322 is a regular hexagonal hole with an inscribed circle having a diameter larger than the outer diameter of the movable part limiting column 312], and the movable part limiting column 312 is inserted into the movable part limiting hole 322. The degree of micro-convexity or micro-concavity of the vehicle window glass 8 is usually small, so the range of motion of the movable part 311 is usually not too large. On the contrary, an excessively large range of motion of the movable part 311 may reduce the overall strength of the main wiping assembly 3. Therefore, this technical solution can limit the range of motion of the movable part 311, thereby ensuring the overall strength of the main wiping component 3 while ensuring the cleaning effect.

[0098] The terms first, second, etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0099] As used herein, the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced object.

[0100] Terms indicating orientation or position as used in the present invention, such as top, bottom, side, longitudinal, lateral, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0101] As used in the present invention, the terms: generally, overall, approximately, close, etc., are limiting terms to indicate that a feature exists but a certain deviation is allowed. The amount of the certain deviation allowed may vary depending on the specific context; for example, the specific context that may depend on the deviation of a dimension includes but is not limited to the relevant standards of the dimension tolerance.

Claims

1. A telescopic rod structure of a cleaning device, comprising a telescopic rod assembly (1), wherein the telescopic rod assembly (1) comprises a small outer diameter rod (12), an outer expansion member (13), and a large inner diameter tube (11) provided with a cylindrical hole (111), wherein the small outer diameter rod (12) can enter the cylindrical hole (111); wherein the telescopic rod assembly (11) comprises a small outer diameter rod (12), an outer expansion member (13), and a large inner diameter tube (11) provided with a cylindrical hole (111); wherein the small outer diameter rod (12) can enter the cylindrical hole (111); wherein the telescopic rod assembly (11) comprises a small outer diameter rod (12), a large inner diameter tube (11) and a cylindrical hole (111). An outward expansion supporting portion (121) and a screw rod (122) are provided at one end of the small outer diameter rod (12); the cross-sectional area of ​​the outward expansion supporting portion (121) gradually decreases from the small outer diameter rod (12) toward the large inner diameter tube (11); the outward expansion member (13) is arranged in the cylindrical hole (111); the outward expansion member (13) is provided with a threaded hole (132) and a plurality of elastic outward expansion arms (131); the screw rod (122) is connected to the threaded hole (132); the outward expansion supporting portion (121) can resist the outward expansion arm (131) to move the outward expansion arm (131) outward.

2. The telescopic rod structure of the cleaning device according to claim 1, characterized in that: The screw rod (122) is provided with an idle section (123) to form a pre-connection section (124) and an axial movement section (125) respectively located on both sides of the idle section (123); the axial length of the idle section (123) is smaller than the axial length of the threaded hole (132).

3. The telescopic rod structure of the cleaning device according to claim 1 is characterized in that: The other end of the external expansion piece (13) is provided with an elastic damping arm (134), and the damping arm (134) abuts against the inner wall of the cylindrical hole (111).

4. The telescopic rod structure of the cleaning device according to claim 2, characterized in that: The telescopic rod assembly (1) also includes a nut (152), and the outer expansion member segment (15) is provided with a nut groove (151); the nut (152) abuts against the inner wall of the nut groove (151), and the threaded hole (132) is provided on the nut (152).

5. The telescopic rod structure of the cleaning device according to claim 4, characterized in that: The thickness of the nut (152) is smaller than the axial length of the idle section (123).

6. The telescopic rod structure of the cleaning device according to claim 1, characterized in that: The telescopic rod assembly (1) further comprises an elastic ring (154); the external expansion piece (13) comprises a plurality of external expansion piece segment bodies (15) made of plastic; each of the external expansion piece segment bodies (15) is provided with an elastic ring groove (153); the elastic ring (154) abuts against the inner wall of the elastic ring groove (153) so that the two ends of each external expansion piece segment body (15) are aligned respectively.

7. The telescopic rod structure of the cleaning device according to claim 6, characterized in that: There are two outer expansion component partition bodies (15).

8. The telescopic rod structure of the cleaning device according to claim 1, characterized in that: The small outer diameter rod (12) is tubular, and the telescopic rod assembly (1) further comprises an outward expansion abutment member (14); one end of the outward expansion abutment member (14) is a small outer diameter rod connecting portion (142) embedded in the small outer diameter rod (12) and fixedly connected to the small outer diameter rod (12); and the outward expansion abutment portion (121) is arranged on the outward expansion abutment member (14).

9. The telescopic rod structure of the cleaning device according to claim 1, characterized in that: An outer sleeve (19) is sleeved on one end of the large inner diameter tube (11), one end of the outer sleeve (19) is in close contact with or close to the small outer diameter rod (12), and the outwardly expanded abutting member (14) is provided with a limiting edge (143) that exceeds the outer wall of the small outer diameter rod (12).

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