Window wiper and cleaning tool

Abstract

The utility model discloses a window scraper which comprises a support, a scraping strip and a scraping plate assembly, the scraping strip and the scraping plate assembly are respectively and detachably connected with the support, the scraping strip and the scraping plate assembly are respectively located on two sides of the support, a fin scraping plate is arranged on the scraping plate assembly, and the scraping strip is a flexible scraping strip. The utility model further provides a cleaning tool which comprises the window wiper and a tool rod assembly, and the window wiper is detachably connected with the tool rod assembly. Compared with the prior art, the utility model has the beneficial effects that the utility model further provides a cleaning tool, and a user can select to use the scraping strip and the scraping plate assembly according to a specific use scene. A user can easily replace the damaged scraping strip and scraping plate assembly, and the cleaning tool is diversified in function and wide in application scene.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning tools, in particular to a window scraper and cleaning tool. Background Art

[0002] The basic principle of manual window scraping is to use the softness and elasticity of the rubber scraper to manually apply pressure to scrape off the dirt and moisture on the glass surface. Although manual window scraping is widely used, it also has certain defects. Its defects are that its function is relatively single, and the scraper can only be used to remove a small amount of surface attachments. Once the attachment is large in size or weight (such as thick snow), coupled with the large friction resistance of the rubber scraper itself, it will be inconvenient for the user to use, making it difficult to achieve the expected cleaning effect, and it will also increase the wear of the scraper. In addition, it is also inconvenient to replace the scraper blade of the manual window scraper.

[0003] Therefore, there is an urgent need to develop a window scraper and corresponding cleaning tools with diverse functions, wide application scenarios, and convenient scraper blade replacement. Utility Model Content

[0004] The purpose of the utility model is to provide a window scraper in view of the deficiencies in the prior art, which includes a bracket, a scraper strip and a scraper assembly, the scraper strip and the scraper assembly are respectively detachably connected to the bracket, the scraper strip and the scraper assembly are respectively located on both sides of the bracket, a fin scraper is provided on the scraper assembly, and the scraper strip is a flexible scraper strip.

[0005] Preferably, the front support arm, the first connecting part and the front support arm are both connected to the central connecting part, the first connecting part is detachably connected to the handle, the front support arm is detachably linked to the scraper strip, and the scraper assembly is connected to the central connecting part by a snap.

[0006] Preferably, the scraper assembly is provided with a plug-in portion, the plug-in portion is detachably connected to the buckle, and the central connecting portion is provided with a receiving hole for accommodating the plug-in portion and the buckle.

[0007] Preferably, a first grille plate is provided on the plug-in portion, an opening is provided on the first grille plate, a first groove for accommodating the first grille is provided inside the accommodating hole, and a second groove for snapping the buckle is also provided inside the accommodating hole.

[0008] Preferably, the buckle includes a first U-shaped arm, a second U-shaped arm and a buckle cap, the proximal end of the first U-shaped arm and the proximal end of the second U-shaped arm are both connected to the buckle cap, the first U-shaped arm is provided with a first clamping block and a third clamping block, the second U-shaped arm is provided with a second clamping block and a fourth clamping block, the first clamping block and the second clamping block can be clamped in the opening; the third clamping block and the fourth clamping block can be clamped in the second groove; the distal end of the first U-shaped arm and the distal end of the second U-shaped arm are both suspended; the distal end of the first U-shaped arm is also provided with a first abutting portion, and the distal end of the second U-shaped arm is also provided with a second abutting portion.

[0009] Preferably, the bracket is also provided with a cover plate, which is detachably connected to the front support arm; one end of the front support arm is connected to the central connecting part, and the other end is connected to the scraper strip; a fixing seat and a plurality of support arm connecting seats are provided in the front support arm, and the cover plate is connected to the front support arm through the fixing seat and the support arm connecting seats respectively; the front end of the front support arm is also provided with an arm groove for accommodating the scraper strip.

[0010] Preferably, the fixing seat is provided with a columnar protrusion, the cover plate is provided with a second C-shaped groove and a cover plate connecting portion, the second C-shaped groove can be inserted into the columnar protrusion, and the cover plate connecting portion is connected to the support arm connecting seat by a pin; the front end of the cover plate is also provided with fixing teeth for fixing the scraper strip.

[0011] Preferably, the handle is provided with a first handle connecting end and a second handle connecting end, the first handle connecting end is connected to the first connecting portion via a snap button, and the second handle connecting end is detachably connected to the tool rod assembly.

[0012] Preferably, the first handle connecting end can be sleeved on the first connecting part, the first handle connecting end and the first connecting part are both hollow inside, the hollow inside is used to embed the spring buckle, two handle through holes are provided on the side of the first handle connecting end, and two connecting through holes are provided on the first connecting part. The spring buckle is a V-shaped spring buckle, and a protrusion is provided on each of the two arms of the spring buckle, and the protrusion can pass through the connecting through hole and the handle through hole in sequence; a plurality of finger grooves are provided on the circumference of the handle.

[0013] The utility model also provides a cleaning tool, which comprises the above-mentioned window scraper and a tool rod assembly, wherein the window scraper is detachably connected to the tool rod assembly.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model also provides a cleaning tool, and the user can choose to use the scraper strip and scraper assembly according to the specific use scenario. It is convenient to replace the damaged scraper strip and scraper assembly. The cleaning tool has various functions and a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the window scraper in the first embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the handle in the first embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the spring buckle in the first embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the bracket in the first embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the scraper assembly in the first embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the cover plate in the first embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the window scraper without a cover plate in the first embodiment of the utility model.

[0024] Figure 8 It is a schematic diagram of the structure of the buckle in the first embodiment of the utility model;

[0025] Fig. 9 It is a three-dimensional diagram of the multi-section telescopic rod mechanism in the second embodiment of the utility model;

[0026] Fig.10 It is a partial structural diagram of a multi-section telescopic rod mechanism in the second embodiment of the utility model;

[0027] Fig.11 It is a three-dimensional diagram of the locking block in the second embodiment of the utility model;

[0028] Fig.12 This is a diagram showing the use status of the lock in the second embodiment of the present utility model;

[0029] Fig.13 This is a schematic diagram of the structure of the lock in the second embodiment of the present utility model;

[0030] Fig.14 This is an end view of the lock in the second embodiment of the utility model;

[0031] Fig.15 for Figure 6 Sectional view along line AA;

[0032] Fig.16 This is a three-dimensional diagram of the first joint in the second embodiment of the present utility model;

[0033] Fig.17 It is a three-dimensional diagram of the second joint in the second embodiment of the utility model.

[0034] Reference numerals:

[0035] Bracket 100, scraper strip 110, scraper assembly 120, handle 130, snap button 140, buckle 150, cover plate 160, first connecting portion 101, connecting through hole 102, accommodating hole 103, first groove 104, second groove 105, front support arm 106, fixing seat 107, support arm groove 108, support arm connecting seat 109, plug-in portion 121, first grid plate 122, opening 123, second grid plate 124, fin scraper 125, first handle connecting end 131, second handle connecting end 132, handle Through hole 133, protrusion 141, first U-shaped arm 151, second U-shaped arm 152, buckle cap 153, first abutment portion 154, second abutment portion 155, fixed tooth 161, lock buckle 1, eccentric cam handle 2, telescopic rod 3, joint connector 4, clamping sleeve 11, fixing sleeve 12, limiting plate 13, abutment edge 11a, side edge 21, pivot hole 22, first joint 41, second joint 42, adjusting knob 43, first fixed block 41a, first gear ring 41b, second fixed block 42a and second gear ring 42b. DETAILED DESCRIPTION

[0036] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0037] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0040] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0041] In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0042] In order to illustrate the technical solution of the present utility model, specific embodiments are provided below for illustration. Embodiment 1

[0043] like Figure 1 As shown, the utility model provides a window scraper, which includes a bracket 100, a scraper strip 110, a scraper assembly 120, a handle 130 and a buckle 150, and the scraper strip 110 and the scraper assembly 120 are respectively connected to the bracket 100. The handle 130 is detachably connected to the bracket 100.

[0044] like Figure 2As shown, the handle 130 is provided with a first handle connection end 131 and a second handle connection end 132. The first handle connection end 131 is detachably connected to the first connection portion 101 on the bracket 100. The second handle connection end 132 is detachably connected to the tool rod assembly, for example, by threading or clamping.

[0045] Preferably, the first handle connection end 131 is connected to the first connection part 101 via a spring buckle 140. The first handle connection end 131 can be sleeved on the first connection part 101. The first handle connection end 131 and the first connection part 101 are both hollow inside, and the hollow part is used to house the spring buckle 140. Two handle through holes 133 are provided on the side of the first handle connection end 131. The two handle through holes 133 are arranged opposite to each other, and the first connection part 101 is provided with two connecting through holes 102, and the two connecting through holes 102 are arranged opposite to each other. The handle through hole 133 is matched with the connecting through hole 102. Figure 3 As shown, the snap button 140 is a V-shaped snap button, and a protrusion 141 is provided on each of the two arms of the snap button 140. The protrusion 141 can pass through the connecting through hole 102 and the handle through hole 133 in sequence. When the protrusions 141 on both sides are respectively inserted into the connecting through holes 102 and the handle through hole 133 on each side, the detachable connection between the handle 130 and the bracket 100 can be completed through the snap button 140. When it is necessary to separate the handle 130 from the bracket 100, the protrusion 141 can be pressed inward from the outside to deform the snap button 140. Once the protrusion 141 is separated from the handle through hole 133, the handle 130 can be removed.

[0046] Preferably, the second handle connection end 132 is provided with an internal thread, the connection end of the tool rod assembly is provided with an external thread, and the second handle connection end 132 is connected to the tool rod assembly through threads. The tool rod assembly is preferably a fixed-length straight rod or a telescopic straight rod.

[0047] Preferably, a plurality of finger grooves are provided on the circumference of the handle 130 .

[0048] like Figure 4 As shown, a central connecting portion is provided on the bracket 100, and a receiving hole 103 is provided inside the central connecting portion. A plug-in portion 121 is provided at one end of the scraper assembly 120. The plug-in portion 121 is connected to the central connecting portion by a buckle 150. The receiving hole 103 is used to accommodate the plug-in portion 121 and the buckle 150. A first groove 104 is provided on the inner wall of the receiving hole 103. A second groove 105 is also provided on the inner wall of the receiving hole 103. Preferably, the number of the second grooves 105 is two, and they are opposed to each other up and down. The number of the first grooves 104 is two, and they are opposed to each other left and right.

[0049] like Figure 5As shown, a first grid plate 122 is provided on the plug-in portion 121. An opening 123 is provided on the first grid plate 122. Both ends of the first grid plate 122 can be inserted into two first grooves 104 opposite to each other on the left and right sides, so that the plug-in portion 121 will not rotate at will, thereby ensuring the axial stability of the scraper assembly 120. The plug-in portion 121 is also provided with a second grid plate 124. Preferably, the number of the second grid plates 124 is 2, the second grid plates 124 are arranged longitudinally, the first grid plates 122 are arranged transversely, and the first grid plates 122 and the second grid plates 124 are arranged vertically. The beneficial effect of providing two second grid plates 124 is that the connection stability between the buckle 150 and the plug-in portion 121 can be better ensured, so that the plug-in portion 121 is not easily separated from the buckle 150.

[0050] The plug-in portion 121 is connected to the fin scraper 125 through a connecting arm. The fin scraper 125 includes a back plate, on which a plurality of fins are arranged at intervals. The back plate is connected to the plug-in portion 121 through a connecting arm. The proximal ends of each fin are connected to the back plate. The distal ends of each fin are arc-shaped as a whole. That is, the width of the fin in the middle is the widest, the width of the upper fins is narrowed successively, and the width of the lower fins is also narrowed successively, so that the contours of the distal ends of all fins of the fin scraper 125 are arc-shaped.

[0051] Preferably, the plurality of fins are arranged in parallel.

[0052] like Figure 8 As shown, the buckle 150 includes a first U-shaped arm 151, a second U-shaped arm 152 and a buckle cap 153. The first U-shaped arm 151 and the second U-shaped arm 152 have the same structure and are symmetrically arranged. The proximal end of the first U-shaped arm 151 and the proximal end of the second U-shaped arm 152 are both connected to the buckle cap 153. A first clamping block is provided on the first U-shaped arm 151, and a second clamping block is provided on the second U-shaped arm 152. The first clamping block and the second clamping block can be clamped in the opening 123, so as to connect the buckle 150 with the plug-in portion 121. The first clamping block can be clamped into the opening 123 from above, and the second clamping block can be clamped into the opening 123 from below. The first clamping block and the second clamping block are arranged in the same vertical plane. The first clamping block is arranged in the upper right corner, and the second clamping block is arranged in the lower left corner. The width of the first clamping block and the second clamping block is half of the width of the U-shaped arm. The first clamping block and the second clamping block are arranged in a staggered manner, that is, they are arranged diagonally opposite to each other. The beneficial effect of the obliquely opposed arrangement is that the first clamping block and the second clamping block can avoid excessive deformation of the U-shaped arm during the clamping process, thereby increasing the service life of the buckle.

[0053] A third clamping block is also provided on the first U-shaped arm 151, and a fourth clamping block is provided on the second U-shaped arm 152. The third clamping block can be clamped in the second groove 105, and the fourth clamping block can also be clamped in another second groove 105. The buckle 150 can be fixed in the central connecting portion by the third clamping block and the fourth clamping block.

[0054] The distal end of the first U-shaped arm 151 is suspended, and the distal end of the second U-shaped arm 152 is suspended. A first abutting portion 154 is also provided on the distal end of the first U-shaped arm 151, and a second abutting portion 155 is also provided on the distal end of the second U-shaped arm 152. The first abutting portion 154 and the second abutting portion 155 can abut against the inner wall of the central connecting portion, and provide elastic force through deformation, so that the third clamping block and the fourth clamping block can be better fixed in the second groove 105. Preferably, the distal end of the first U-shaped arm 151 is located at the top, and the distal end of the second U-shaped arm 152 is located at the bottom.

[0055] Preferably, the proximal end of the first U-shaped arm 151 is also connected to the buckle cap 153 via a reinforcing rib. The proximal end of the second U-shaped arm 152 is also connected to the buckle cap 153 via a reinforcing rib. The reinforcing rib has the beneficial effect of increasing the connection strength between the U-shaped arm and the buckle cap 153 and enhancing the service life of the buckle 150.

[0056] Through the above structure, a relatively stable connection relationship can be achieved among the central connecting portion, the buckle 150 and the scraper assembly 120 .

[0057] like Figure 4 , Figure 6 and Figure 7 As shown, the bracket 100 is provided with a cover plate 160 and a front arm 106, one end of the front arm 106 is connected to the central connecting portion, and the other end is connected to the scraper strip 110. The front arm 106 is bucket-shaped. A fixing seat 107 and a plurality of arm connecting seats 109 are provided in the front arm 106. The cover plate 160 is connected to the front arm 106 through the fixing seat 107 and the arm connecting seat 109 respectively. The fixing seat 107 is provided with a columnar protrusion, and the columnar protrusions are distributed on the left and right sides. The cover plate 160 is provided with a second C-shaped groove, and the second C-shaped groove can be inserted into the columnar protrusion. The cover plate 160 is also provided with a cover plate connecting portion, and the cover plate connecting portion is detachably connected to the arm connecting seat 109. Preferably, the cover plate connecting portion is connected to the arm connecting seat 109 by a pin. One cover plate connecting portion is provided on each side. Two arm connection seats 109 are arranged on the left side of the front arm, which are used to connect with the cover plate connection part on the left side. Similarly, the connection structure on the right side is also arranged symmetrically. The cover plate 160 and the front arm 106 are connected through four connection points. This ensures the stability of the connection, so that the cover plate 160 is not easy to be separated from the front arm 106, and the scraper strip 110 clamped by the cover plate 160 and the front arm 106 is not easy to fall off. Even if the user uses a large force to scrape off the attachment, the scraper strip 110 will not be loose.

[0058] The front end of the front support arm 106 is also provided with a support arm groove 108, preferably a first C-shaped groove. The support arm groove 108 is used to accommodate the scraper strip 110. The rear end of the scraper strip 110 is a cylindrical structure and can be snapped into the first C-shaped groove. The front end of the cover plate 160 is also provided with a fixed tooth 161. The fixed tooth 161 can clamp the rear end of the scraper strip 110 so that the scraper strip 110 cannot easily escape from the first C-shaped groove. In this way, a stable connection between the cover plate 160, the front support arm 106 and the scraper strip 110 is ensured. The service life of the window scraper is enhanced. When the scraper strip is worn, the worn scraper strip can also be replaced by opening the cover plate 160.

[0059] The scraper bar 110 is a flexible scraper bar, preferably a rubber scraper bar. The front end of the scraper bar 110 is a scraper bar body, and the rear end thereof is a columnar connecting portion.

[0060] The scraper strip 110 and the scraper assembly 120 are distributed on both sides of the central connection part. The user can choose to use the scraper strip 110 or any side of the scraper assembly 120 for cleaning work according to different usage scenarios. For example, when there is a small amount of snow or water on the windshield of the car, you can directly use the flexible scraper strip to remove it, which can achieve a better cleaning effect. If there is a large amount of snow on the windshield of the car, you can use a cloth cover to cover the scraper assembly 120, and then clean the thicker snow. If there is a small amount of residual snow, you can flip the window scraper and use the scraper strip 110 to further clean it. In addition, when encountering some hard attachments that are not easy to remove using a flexible scraper strip, you can use the scraper assembly 120 to remove them.

[0061] The utility model also provides a cleaning tool, which comprises the above-mentioned window scraper and tool rod assembly. The window scraper and tool rod assembly are detachably connected. Embodiment 2

[0062] The difference between this embodiment and the first embodiment is that the tool rod assembly is a multi-section telescopic rod mechanism with a steering joint.

[0063] like Figures 9 to 17 As shown, the multi-section telescopic rod mechanism includes a plurality of telescopic rods 3. In each pair of two telescopic rods 3 that are mutually sleeved, a lock buckle 1 with an eccentric cam handle 2 is installed at the end of the thicker telescopic rod 3. The surface of the lock buckle 1 has a pair of arc-shaped abutting edges 11a. The cam portion on the eccentric cam handle 2 abuts against the abutting edges 11a. Limiting plates 13 are provided on the outer sides of the pair of abutting edges 11a. There is a gap between the limiting plate 13 and the side edge 21 of the eccentric cam handle 2, and the gap is configured to limit the deflection of the eccentric cam handle 2 relative to the lock buckle 1.

[0064] Combination Figure 9-10As shown, in this embodiment, the multi-section telescopic rod 3 mechanism includes five telescopic rods 3, and the inner diameters of the five telescopic rods 3 are gradually increased, and the thicker telescopic rod 3 is sleeved with the thinner telescopic rod 3. In each pair of two telescopic rods 3 sleeved with each other, the end of the thicker telescopic rod 3 is installed with a lock buckle 1, that is, the multi-section telescopic rod 3 includes four lock buckles 1 with eccentric cam handles 2. When the lock buckle 1 is in an unlocked state, the thinner telescopic rod 3 can be freely extended through the lock buckle 1, and when the lock buckle 1 is in a locked state, the lock buckle 1 locks the thinner telescopic rod 3 to limit its displacement relative to the thicker telescopic rod 3.

[0065] Furthermore, combined with Figure 11-13 As shown, in this embodiment, the surface of the lock buckle 1 is concave downward to form an abutment edge 11a, and the surface profile of the abutment edge 11a is arc-shaped. The eccentric cam handle 2 is located on one side of the lock buckle 1, and a nut is provided on the other side of the lock buckle 1. The eccentric cam handle 2 is threadedly connected to the nut through a connecting shaft (not shown in the figure).

[0066] Specifically, combined Figure 13-15 As shown, the lock buckle 1 is integrally formed, and includes a clamping sleeve 11 and a fixing sleeve 12 in sequence along the axial direction. The fixing sleeve 12 is clamped on the end of the thicker telescopic rod 3, and the eccentric cam handle 2 is installed on the clamping sleeve 11 through a connecting shaft. The eccentric cam handle 2 has a pivot hole 22 connected to the pivot, and the pivot is connected to the connecting shaft.

[0067] Furthermore, in this embodiment, the clamping sleeve 11 and the fixing sleeve 12 are connected as one body, and both have the lock buckle 1 formed as one body by injection molding. The inner diameter of the fixing sleeve 12 is larger than the inner diameter of the clamping sleeve 11, and the fixing sleeve 12 is locked and fixed to the end of the telescopic rod 3 by a screw (not shown in the figure).

[0068] Specifically, combined Figure 16-17 As shown, a joint connector 4 is fixedly installed at the end of the frontmost telescopic rod 3 among the multiple telescopic rods 3, and the joint connector 4 includes a first joint 41, a second joint 42 and an adjusting knob 43 connecting the two. When the adjusting knob 43 is loosened, the first joint 41 can rotate relative to the second joint 42 around the central axis of the adjusting knob 43; when the adjusting knob 43 is locked, the angle of the first joint 41 relative to the second joint 42 is fixed, the first joint 41 has a disc-shaped first fixing block 41a, and the second joint 42 has a disc-shaped second fixing block 42a. The adjusting knob 43 passes through a hinge structure formed by the combination of the first fixing block 41a and the second fixing block 42a. The first fixing block 41a and the second fixing block 42a are respectively provided with a first gear ring 41b and a second gear ring 42b on the sides facing each other. When the adjusting knob 43 is locked, the first gear ring 41b and the second gear ring 42b are engaged.

[0069] Further, in this embodiment, the first joint 41 is hooped around the frontmost telescopic rod 3, that is, the first joint 41 is fixedly installed at the end position of the thinnest telescopic rod 3 among the multiple telescopic rods 3. A first fixing block 41a is provided at one end of the first joint 41 away from the telescopic rod 3, and the outer peripheral edge of the first fixing block 41a is combined with the hooping structure of the first joint 41. Similarly, one end of the second joint 42 is a free end with a thread for external accessories, and the other end of the second joint 42 is provided with a second fixing block 42a. A circle of first gear ring 41b is provided on the disc surface of the first fixing block 41a, and one end of second gear ring 42b is provided on the disc surface of the second fixing block 42a. Through holes are provided in the centers of the first fixing block 41a and the second fixing block 42a, and the adjustment knob 43 passes through the two through holes. The hinge structure is loosened or locked by rotating the adjustment knob 43. When the hinge structure is loosened, the first gear ring 41b is disengaged from the second gear ring 42b, and the first joint 41 can rotate relative to the second joint 42, thereby adjusting the angle of the external accessory. When the hinge structure is locked, the first gear ring 41 b is engaged with the second gear ring 42 b , and the first joint 41 is locked relative to the second joint 42 .

[0070] The cleaning tool in this embodiment has the beneficial effect that the multiple telescopic rods 3 can be connected to the second handle connection end 132 through the free ends with threads on the second joint 42 for external attachment. Since the multi-section telescopic rod mechanism with a steering joint can change the joint angle, the operator can change the connection angle between the multiple telescopic rods 3 and the window scraper when in use, thereby increasing the application scenarios of the cleaning tool in the utility model.

[0071] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A window scraper, characterized in that: It comprises a bracket, a scraper bar and a scraper assembly. The scraper bar and the scraper assembly are detachably connected to the bracket respectively. The scraper bar and the scraper assembly are respectively located on both sides of the bracket. A fin scraper is provided on the scraper assembly. The scraper bar is a flexible scraper bar.

2. The window scraper according to claim 1, characterized in that: The bracket is provided with a central connecting part, a first connecting part and a front supporting arm, the first connecting part and the front supporting arm are both connected to the central connecting part, the first connecting part is detachably connected to the handle, the front supporting arm is detachably linked to the scraper strip, and the scraper assembly is connected to the central connecting part by a buckle.

3. The window scraper according to claim 2, characterized in that: The scraper assembly is provided with a plug-in portion, the plug-in portion is detachably connected to the buckle, and the central connecting portion is provided with a receiving hole for accommodating the plug-in portion and the buckle.

4. The window scraper according to claim 3, characterized in that: The plug-in portion is provided with a first grille plate, the first grille plate is provided with an opening, a first groove for accommodating the first grille is provided inside the accommodating hole, and a second groove for snapping the buckle is also provided inside the accommodating hole.

5. The window scraper according to claim 4, characterized in that: The buckle includes a first U-shaped arm, a second U-shaped arm and a buckle cap, the proximal ends of the first U-shaped arm and the proximal ends of the second U-shaped arm are both connected to the buckle cap, the first U-shaped arm is provided with a first clamping block and a third clamping block, the second U-shaped arm is provided with a second clamping block and a fourth clamping block, the first clamping block and the second clamping block can be clamped in the opening; the third clamping block and the fourth clamping block can be clamped in the second groove; the distal ends of the first U-shaped arm and the second U-shaped arm are both suspended; the distal end of the first U-shaped arm is also provided with a first abutting portion, and the distal end of the second U-shaped arm is also provided with a second abutting portion.

6. The window scraper according to claim 2, characterized in that: The bracket is also provided with a cover plate, which is detachably connected to the front support arm; one end of the front support arm is connected to the central connecting part, and the other end is connected to the scraper strip; a fixing seat and a plurality of support arm connecting seats are provided in the front support arm, and the cover plate is connected to the front support arm through the fixing seat and the support arm connecting seats respectively; the front end of the front support arm is also provided with an arm groove for accommodating the scraper strip.

7. The window scraper according to claim 6, characterized in that: The fixing seat is provided with a columnar protrusion, and the cover plate is provided with a second C-shaped groove and a cover plate connecting portion, the second C-shaped groove can be inserted into the columnar protrusion, and the cover plate connecting portion is connected to the support arm connecting seat by a pin; the front end of the cover plate is also provided with fixing teeth for fixing the scraper strip.

8. The window scraper according to claim 2, characterized in that: The handle is provided with a first handle connecting end and a second handle connecting end, the first handle connecting end is connected to the first connecting portion via a snap button, and the second handle connecting end is detachably connected to the tool rod assembly.

9. The window scraper according to claim 8, characterized in that: The first handle connecting end can be sleeved on the first connecting part, and the first handle connecting end and the first connecting part are both hollow inside, and the hollow inside is used to embed the spring buckle, and two handle through holes are provided on the side of the first handle connecting end, and two connecting through holes are provided on the first connecting part. The spring buckle is a V-shaped spring buckle, and a protrusion is provided on each of the two arms of the spring buckle, and the protrusion can pass through the connecting through hole and the handle through hole in sequence; a plurality of finger grooves are provided on the circumference of the handle.

10. A cleaning tool, characterized in that: It comprises a window scraper and tool rod assembly as claimed in any one of claims 1 to 9, wherein the window scraper is detachably connected to the tool rod assembly.

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