Cleaning head and cleaning device

Abstract

The utility model discloses a cleaning head and a cleaning device. The cleaning head comprises a shell, a driving device and a driving device, the scraping strip assembly comprises a scraping strip and a scraping strip supporting frame, the scraping strip is used for scraping dirt on a surface to be cleaned, the scraping strip supporting frame is connected to the scraping strip, and the scraping strip is rotatably arranged on the shell; wherein a limiting structure is arranged between the shell and the scraping strip supporting frame, and the scraping strip is suitable for rotating forwards by at most 30 degrees and rotating backwards by at most 90 degrees under the limiting effect of the limiting structure. Therefore, by arranging the cleaning head, the scraping strip can rotate back and forth within a reasonable angle range, so that the water scraping stability of the scraping strip is improved, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment, and in particular to a cleaning head and cleaning equipment. Background Technology

[0002] As a type of household cleaning appliance, floor scrubbers are highly effective at removing stains and dust from floors. They have a wide range of applications and are suitable for cleaning different types of floors. The squeegee, a key component of the floor scrubber's brush, is responsible for removing water residue from the floor and keeping it dry during the scrubber's forward and backward movements.

[0003] In related technologies, some floor scrubbers have a front squeegee in front of the roller brush, which is connected to the brush housing via a pivoting structure. During operation, this pivoting structure causes the front squeegee to rotate back and forth. However, the pivoting structure makes it difficult to control the rotation angle of the front squeegee. If the forward rotation angle is too large or too small, the squeegee's cleaning effect is reduced; if the backward rotation angle is too large, the front squeegee may make excessive contact with the roller brush, leading to wear. Furthermore, the aforementioned pivoting structure is relatively complex, which increases the cost of the floor scrubber. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a cleaning head that allows the squeegee to rotate back and forth within a reasonable angle range, thereby improving the squeegee's water-wiping stability. Moreover, this structure is simple and low in cost.

[0005] This utility model further proposes a cleaning device.

[0006] A cleaning head according to a first aspect of the present invention includes: a housing; a scraper assembly, the scraper assembly including a scraper and a scraper support frame, the scraper being used to scrape off dirt from a surface to be cleaned, the scraper support frame being connected to the scraper, and the scraper being rotatably disposed in the housing; wherein a limiting structure is provided between the housing and the scraper support frame, and the scraper is adapted to rotate forward by up to 30° and backward by up to 90° under the limiting action of the limiting structure.

[0007] Therefore, by setting this cleaning head, the squeegee can rotate back and forth within a reasonable angle range, thereby improving the squeegee's water-wiping stability. Moreover, the structure is simple and the cost is low.

[0008] In some examples of this utility model, the scraper is adapted to rotate forward by up to 10° under the limiting action of the limiting structure; and / or the scraper is adapted to rotate backward by up to 65° under the limiting action of the limiting structure.

[0009] In some examples of this utility model, the limiting structure includes: a front limiting part, which is disposed on the scraper support frame and located on the front side of the scraper, and the scraper is adapted to rotate forward by up to 30° under the limiting action of the front limiting part and the housing; and a rear limiting part, which is disposed on the scraper support frame and located on the rear side of the scraper, and the scraper is adapted to rotate backward by up to 90° under the limiting action of the rear limiting part and the housing.

[0010] In some examples of this utility model, the front limiting part is constructed with a first limiting inclined surface extending downward and forward on the front side of the scraper support frame, and the housing is provided with a second limiting inclined surface located on the front side of the first limiting inclined surface and cooperating with the first limiting inclined surface; or the front limiting part is constructed with a limiting protrusion protruding upward on the top surface of the scraper support frame.

[0011] In some examples of this utility model, the rear limiting part is constructed with a third limiting inclined surface that extends obliquely downwards and backwards on the rear side of the scraper support frame, and the housing is provided with a fourth limiting inclined surface located on the front side of the third limiting inclined surface and cooperating with the third limiting inclined surface; or the rear limiting part is constructed with a limiting protrusion that protrudes upwards from the top surface of the scraper support frame.

[0012] In some examples of this utility model, the scraper is provided with a through hole, and the scraper support frame includes: a scraper cover plate, which is disposed on the front side of the scraper and is provided with the front limiting part; and a scraper bracket, which is disposed on the rear side of the scraper and is provided with the rear limiting part. One of the scraper cover plate and the scraper bracket passes through the through hole and is connected to the other of the scraper cover plate and the scraper bracket.

[0013] In some examples of this utility model, the housing is provided with a mounting groove extending in the left-right direction; the scraper assembly further includes: a fixing member, the fixing member being fitted into the mounting groove, the fixing member being provided with a sliding groove, the bottom of the fixing member being provided with an opening communicating with the sliding groove, and the top of the scraper passing through the mounting groove and the opening.

[0014] In some examples of this utility model, one end of the housing is provided with a first snap-fit ​​portion, and the scraper assembly further includes a snap-fit ​​member. The snap-fit ​​member is provided at one end of the fixing member, and the snap-fit ​​member is provided with a second snap-fit ​​portion. The first snap-fit ​​portion and the second snap-fit ​​portion engage in a snap-fit ​​cooperation.

[0015] In some examples of this utility model, the mounting groove is provided with one of a limiting groove and a limiting rib, and the fastener is provided with the other of a limiting groove and a limiting rib. The limiting groove and the limiting rib are engaged in a limiting fit in the left and right directions.

[0016] In some examples of this utility model, a limiting block is provided at one end of the scraper, and the limiting block is engaged with one end of the fixing member in the left-right direction.

[0017] In some examples of this utility model, elastic support blocks are provided at both ends of the front side of the scraper in the left and right directions, and the elastic support blocks are adapted to support the cleaning surface.

[0018] A cleaning head according to a second aspect of the present invention includes: a housing; and a scraper assembly, the scraper assembly including a scraper, a scraper bracket, and a scraper cover plate. The scraper has a through hole, the scraper cover plate is disposed on the front side of the scraper, and the scraper bracket is disposed on the rear side of the scraper. One of the scraper cover plate and the scraper bracket passes through the through hole and is connected to the other of the scraper cover plate and the scraper bracket. At least one of the scraper bracket and the scraper cover plate is provided with a limiting structure that cooperates with the housing. The scraper is adapted to rotate within a predetermined angle under the limiting action of the limiting structure and the housing.

[0019] In some examples of this utility model, the scraper cover plate is provided with a front limiting part, which is constructed as a first limiting inclined surface extending obliquely downward on the front side of the scraper cover plate, and the housing is provided with a second limiting inclined surface located on the front side of the first limiting inclined surface and cooperating with the first limiting inclined surface; or the front limiting part is constructed as a limiting protrusion protruding upward on the top surface of the scraper cover plate.

[0020] In some examples of this utility model, the scraper cover plate is provided with a rear limiting part, which is constructed as a third limiting inclined surface extending obliquely downward on the rear side of the scraper bracket, and the housing is provided with a fourth limiting inclined surface located on the front side of the third limiting inclined surface and cooperating with the third limiting inclined surface; or the rear limiting part is constructed as a limiting protrusion protruding upward on the top surface of the scraper bracket.

[0021] The cleaning device according to a third aspect of the present invention includes: the cleaning head described above.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the cleaning head according to an embodiment of the present utility model;

[0025] Figure 2 This is an exploded view of the cleaning head according to an embodiment of the present utility model;

[0026] Figure 3 This is an exploded view of a portion of the cleaning head according to an embodiment of the present utility model;

[0027] Figure 4 This is a structural schematic diagram of the housing from another angle according to an embodiment of the present utility model;

[0028] Figure 5 This is a structural schematic diagram of the fastener and snap-fit ​​component according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of the structure of a cleaning head according to another embodiment of the present invention;

[0030] Figure 7 This is an exploded view of a cleaning head according to another embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of a limiting structure according to another embodiment of the present invention.

[0032] Figure label:

[0033] 100. Cleaning head;

[0034] 1. Housing; 11. Mounting slot; 12. First snap-fit ​​part;

[0035] 2. Scraper assembly; 21. Scraper; 211. Through hole; 213. Elastic support block; 22. Scraper support frame; 221. Scraper cover plate; 222. Scraper bracket; 23. Fixing component; 231. Slide groove; 232. Opening; 24. Snap-fit ​​component; 241. Second snap-fit ​​part;

[0036] 3. Limiting structure; 31. Front limiting part; 311. First limiting inclined surface; 312. Second limiting inclined surface; 32. Rear limiting part. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0038] The following is for reference. Figures 1-8 The cleaning head 100 according to an embodiment of the present invention allows the squeegee 21 to rotate back and forth within a reasonable angle range, thereby improving the squeegee stability of the squeegee 21.

[0039] It should be noted that this application uses the cleaning head 100 applied to a floor scrubber as an example, but it is not limited to this.

[0040] According to a first aspect of the present invention, a cleaning head 100 includes a housing 1 and a scraper assembly 2. The scraper assembly 2 includes a scraper 21 and a scraper support frame 22. The scraper 21 is used to scrape off dirt from the surface to be cleaned. The scraper support frame 22 is connected to the scraper 21. The scraper 21 is rotatably disposed on the housing 1.

[0041] Specifically, the scraper 21 generates friction through contact with the surface to be cleaned. As the scraper 21 moves along the surface, it scrapes away dirt (such as dust and water stains) or removes wastewater from cleaning equipment (such as a floor scrubber), ensuring no water stains remain on the surface and improving cleaning efficiency while preventing secondary pollution. The scraper support frame 22 supports the scraper 21, increasing its strength and reducing the risk of deformation. The scraper 21 can rotate relative to the housing 1, allowing it to flexibly change its position and angle of force. This not only enables the scraper to effectively remove dirt through contact with the surface but also allows dirt on the front side of the scraper 21 to be sucked into the cleaning equipment through the gap between the scraper 21 and the surface, thus improving practicality.

[0042] Specifically, a limiting structure 3 is provided between the housing 1 and the scraper support frame 22. The scraper 21 is adapted to rotate forward by up to 30° under the limiting action of the limiting structure 3, and the scraper 21 is adapted to rotate backward by up to 90° under the limiting action of the limiting structure 3.

[0043] Understandably, along the cleaning direction of the cleaning head 100 on the surface to be cleaned, the maximum forward rotation angle of the squeegee 21, under the limiting action of the limiting structure 3, is 30°. This prevents the squeegee 21 from rotating too far forward, which would result in a large distance between the bottom of the squeegee 21 and the surface to be cleaned, leading to poor squeegee performance. Under the limiting action of the limiting structure 3, the maximum backward rotation angle of the squeegee 21 is 90°. This prevents the squeegee 21 from being prone to fatigue and breakage due to excessive backward rotation, thereby extending the service life of the squeegee 21.

[0044] Compared to traditional structures that use a pivoting mechanism to rotate the front wiper blade, the embodiment in this case limits the angle of rotation of the wiper blade 21 in the front-to-back direction to a reasonable range. This effectively improves the wiping performance of the wiper blade 21 and extends its service life. Moreover, the rotation method of the wiper blade 21 in this case is simpler and less expensive, thus improving its practicality and economy.

[0045] Therefore, by setting the cleaning head 100, the squeegee 21 can rotate back and forth within a reasonable angle range, thereby improving the squeegee 21's water-wiping stability. Moreover, the structure is simple and the cost is low.

[0046] According to some optional embodiments of the present invention, the scraper 21 is adapted to rotate forward by up to 10° under the limiting action of the limiting structure 3. This can further reduce the range of the forward rotation angle of the scraper 21, reduce the probability that the scraper 21 will form a large distance with the surface to be cleaned during the forward rotation, and ensure that the scraper 21 can form a contact relationship with the surface to be cleaned, thereby ensuring the water scraping effect of the scraper 21.

[0047] Furthermore, the scraper 21 is adapted to rotate rearward by up to 65° under the limiting action of the limiting structure 3. This can further reduce the limit angle of the scraper 21's rearward rotation, which can reduce the risk of fatigue fracture of the scraper 21 and the risk of interference contact between the scraper 21 and the rear roller brush, thereby reducing the wear of the scraper 21 and extending its service life.

[0048] According to some optional embodiments of the present invention, refer to Figure 7 and Figure 8 The limiting structure 3 includes a front limiting part 31 and a rear limiting part 32. The front limiting part 31 is disposed on the scraper support frame 22 and is located on the front side of the scraper 21. The scraper 21 is adapted to rotate forward by up to 30° under the limiting action of the front limiting part 31 and the housing 1. The rear limiting part 32 is disposed on the scraper support frame 22 and is located on the rear side of the scraper 21. The scraper 21 is adapted to rotate backward by up to 90° under the limiting action of the rear limiting part 32 and the housing 1.

[0049] Along the cleaning direction of the cleaning head 100 on the surface to be cleaned, the front limiting part 31 and the rear limiting part 32 are located on the front and rear sides of the scraper 21, respectively. Since both the front limiting part 31 and the rear limiting part 32 are mounted on the scraper support frame 22, and the scraper support frame 22 is connected to the scraper 21 as a whole, the scraper 21 can be limited by the combined limiting effect of the front limiting part 31 and the housing 1 during forward rotation, and the scraper 21 can also be limited by the combined limiting effect of the rear limiting part 32 and the housing 1 during backward rotation, thus effectively limiting the rotation angle of the scraper 21 in the front-back direction. The above structure is relatively simple and effective in limiting the front-back rotation angle of the scraper 21.

[0050] Specifically, refer to Figure 8 The front limiting part 31 is constructed with a first limiting slope 311 extending downward and forward on the front side of the scraper support frame 22, and the housing 1 is provided with a second limiting slope 312 located in front of the first limiting slope 311 and cooperating with the first limiting slope 311.

[0051] It is understandable that the first limiting inclined surface 311 on the scraper support frame 22 and the second limiting inclined surface 312 on the housing 1 limit each other when the scraper 21 rotates forward to the limit position. This arrangement can increase the force contact area between the front limiting part 31 and the housing 1, thereby improving the uniformity of force between the two and thus improving the stability of the limiting effect on the scraper 21.

[0052] Alternatively, the front limiting part 31 is configured as a limiting protrusion (not shown) protruding upward on the top surface of the scraper support frame 22. When the scraper 21 rotates forward to the limit position, the limiting protrusion on the scraper support frame 22 mutually limits and cooperates with the edge of the housing 1. With this arrangement, the angle limiting effect of the scraper 21 in the forward rotation direction can be successfully achieved, and the structure is simple and easy to process and manufacture.

[0053] Furthermore, the rear limiting part 32 is configured as a third limiting slope extending downward and backward on the rear side of the scraper support frame 22, and the housing 1 is provided with a fourth limiting slope (not shown in the figure) located in front of the third limiting slope and cooperating with the third limiting slope.

[0054] It is understandable that the third limiting inclined surface on the scraper support frame 22 and the fourth limiting inclined surface on the housing 1 mutually limit and cooperate when the scraper 21 rotates backward to the limit position. This arrangement can increase the force contact area between the rear limiting part 32 and the housing 1, thereby improving the uniformity of force between the two and thus improving the stability of the limiting effect.

[0055] Alternatively, the rear limiting part 32 is configured with a limiting protrusion (not shown) protruding upward from the top surface of the scraper support frame 22. The limiting protrusion on the scraper support frame 22 mutually limits and cooperates with the edge of the housing 1 when the scraper 21 rotates backward to the limit position. With this arrangement, the angle limiting effect of the scraper 21 in the backward rotation direction can be smoothly achieved, and the structure is simple and easy to process and manufacture.

[0056] Specifically, refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 The scraper 21 is provided with a through hole 211. The scraper support frame 22 includes a scraper cover plate 221 and a scraper bracket 222. The scraper cover plate 221 is provided on the front side of the scraper 21 and is provided with a front limiting part 31. The scraper bracket 222 is provided on the rear side of the scraper 21 and is provided with a rear limiting part 32. One of the scraper cover plate 221 and the scraper bracket 222 is connected to the other of the scraper cover plate 221 and the scraper bracket 222 after passing through the through hole 211.

[0057] For example, along the thickness direction of the scraper 21, the scraper cover plate 221 and the scraper bracket 222 are respectively connected to both sides of the scraper 21. The scraper 21 has a through hole 211. After the scraper cover plate 221 passes through the through hole 211 of the scraper 21, it is connected to the scraper bracket 222. In this way, the scraper cover plate 221, the scraper 21 and the scraper bracket 222 can be connected into a whole. The scraper cover plate 221 and the scraper bracket 222 can respectively strengthen the structural strength of the local area of ​​the scraper 21 on both sides of the thickness direction of the scraper 21. That is, without affecting the flexibility of the scraper 21, the scraper cover plate 221 and the scraper bracket 222 can improve the deformation resistance of the scraper 21, reduce the risk of the scraper 21 being easily deformed under external force, and ensure the effectiveness of the scraper 21 in removing stains during cleaning. In addition, the scraper cover plate 221 and the scraper bracket 222 provide stable clamping to the scraper 21 from both sides in the thickness direction of the scraper 21, thereby increasing the structural stability of the scraper 21 during use.

[0058] Compared to the traditional method of connecting the squeegee blade to the squeegee support frame by coating it with rubber, the embodiment in this solution can effectively improve the deformation resistance of the squeegee blade 21 without affecting the flexibility of the squeegee blade 21's squeegee action. This reduces the risk of poor squeegee performance caused by structural fatigue deformation of the squeegee blade 21 after long-term use, thereby improving the practicality and durability of the squeegee blade 21 and extending its service life.

[0059] Furthermore, the front limiting part 31 is set on the scraper cover plate 221 on the front side of the scraper 21, and the rear limiting part 32 is set on the scraper bracket 222 on the rear side of the scraper 21. This arrangement allows the scraper cover plate 221 and the scraper bracket 222 to provide a solid mounting carrier for the front limiting part 31 and the rear limiting part 32, respectively, thereby improving the rationality of the layout and the stability of the structure.

[0060] According to some optional embodiments of the present invention, refer to Figure 4 and Figure 5 The housing 1 is provided with a mounting groove 11 extending in the left and right direction; the scraper assembly 2 also includes a fixing member 23, which is fitted into the mounting groove 11. The fixing member 23 is provided with a sliding groove 231, and the bottom of the fixing member 23 is provided with an opening 232 communicating with the sliding groove 231. The top of the scraper 21 passes through the mounting groove 11 and the opening 232.

[0061] The top of the scraper 21 can fit into the groove 231 of the fixing member 23, and the rest of the scraper 21 can extend through the opening 232 at the bottom of the fixing member 23 to the side of the surface to be cleaned. This can improve the stability of the scraper 21 fitting in the groove 231 and avoid the housing 1 interfering with the structural extension path of the scraper 21 to the side of the surface to be cleaned, thereby improving the design rationality of the scraper assembly 2 and the housing 1.

[0062] In addition, the fastener 23 is fitted into the mounting groove 11 of the housing 1, and the top of the scraper 21 is fitted into the sliding groove 231 of the fastener 23. This allows the scraper 21 to be indirectly connected to the housing 1. Moreover, since the fastener 23 protects the scraper 21, it can reduce the wear of the scraper 21, thereby improving its practicality.

[0063] Specifically, refer to Figure 3 The housing 1 has a first snap-fit ​​part 12 at one end, and the scraper assembly 2 also includes a snap-fit ​​member 24. The snap-fit ​​member 24 is disposed at one end of the fixing member 23, and the snap-fit ​​member 24 is provided with a second snap-fit ​​part 241. The first snap-fit ​​part 12 and the second snap-fit ​​part 241 snap-fit ​​together.

[0064] It is understood that the housing 1 has a first snap-fit ​​part 12 at one end in the left-right direction, and the snap-fit ​​part 24 is connected to one end of the fixing part 23 in the left-right direction. The second snap-fit ​​part 241 on the snap-fit ​​part 24 engages with the first snap-fit ​​part 12 on the housing 1 in the left-right direction. In this way, the snap-fit ​​part 24 can be used to limit the fixing part 23 in the left-right direction of the housing 1, restrict the displacement of the fixing part 23 in the left-right direction of the housing 1, thereby ensuring the positional stability of the fixing part 23 and preventing the fixing part 23 from falling off the housing 1.

[0065] Furthermore, the mounting groove 11 is provided with one of a limiting groove and a limiting rib, and the fixing member 23 is provided with the other of a limiting groove and a limiting rib. The limiting groove and the limiting rib are engaged in a limiting fit in the left and right directions (not shown in the figure). Specifically, when the mounting groove 11 is provided with a limiting groove, the fixing member 23 is provided with a limiting rib; or, when the mounting groove 11 is provided with a limiting rib, the fixing member 23 is provided with a limiting groove.

[0066] For example, the mounting groove 11 is provided with a limiting rib, and the fastener 23 is provided with a limiting groove. The limiting rib and the limiting groove limit each other in the left and right directions, so that the housing 1 can limit the fastener 23 in the left and right directions, thereby ensuring the installation stability of the fastener 23 in the mounting groove 11 and preventing the fastener 23 from falling off the housing 1.

[0067] According to some other embodiments of this utility model, a limiting block is provided at one end of the scraper 21, and the limiting block is engaged with one end of the fixing member 23 in the left-right direction (not shown in the figure). That is, along the left-right direction of the housing 1, the limiting block at one end of the scraper 21 is engaged with one end of the fixing member 23, which can prevent the scraper 21 from moving excessively in the left-right direction relative to the fixing member 23, that is, it forms a limiting effect on the scraper 21 in the left-right direction, thereby ensuring the positional stability of the scraper 21 and preventing the scraper 21 from falling off or shifting from the fixing member 23, thus reducing the cleaning effect.

[0068] According to some optional embodiments of the present invention, refer to Figure 1 The front side of the scraper 21 is provided with elastic support blocks 213 at both ends in the left and right directions. The elastic support blocks 213 are suitable for supporting the surface to be cleaned. In this way, the elastic support blocks 213 at both ends of the scraper 21 limit the distance between the surface to be cleaned and the bottom edge of the scraper 21, thereby ensuring that the scraper 21 is always in an extended state, and further ensuring that dirt can pass through the gap between the scraper 21 and the surface to be cleaned and be removed.

[0069] Reference Figures 1-8 According to a second aspect embodiment of the present invention, a cleaning head 100 includes a housing 1 and a scraper assembly 2. The scraper assembly 2 includes a scraper 21, a scraper bracket 222, and a scraper cover plate 221. The scraper 21 is provided with a through hole 211. The scraper cover plate 221 is disposed on the front side of the scraper 21, and the scraper bracket 222 is disposed on the rear side of the scraper 21. One of the scraper cover plate 221 and the scraper bracket 222 is provided with a through hole 211 and connected to the other of the scraper cover plate 221 and the scraper bracket 222. At least one of the scraper bracket 222 and the scraper cover plate 221 is provided with a limiting structure 3 that cooperates with the housing 1. The scraper 21 is adapted to rotate within a predetermined angle under the limiting action of the limiting structure 3 and the housing 1.

[0070] Therefore, by setting the cleaning head 100 and cooperating with the housing 1 through the limiting structure 3, the angle of the scraper 21 is limited, thereby improving the cleaning effect of the scraper 21 on dirt and the reliability of use. At the same time, the structure of the scraper assembly 2 is simplified, which helps to control the cost of the cleaning head 100.

[0071] According to some optional embodiments of the present invention, refer to Figure 8 The scraper cover plate 221 is provided with a front limiting part 31. The front limiting part 31 is constructed as a first limiting slope 311 extending downward and forward on the front side of the scraper cover plate 221. The housing 1 is provided with a second limiting slope 312 located in front of the first limiting slope 311 and cooperating with the first limiting slope 311.

[0072] It is understandable that the first limiting inclined surface 311 on the scraper cover plate 221 and the second limiting inclined surface 312 on the housing 1 limit each other when the scraper 21 rotates forward to the limit position. This arrangement can increase the force contact area between the front limiting part 31 and the housing 1, thereby improving the uniformity of force between the two and thus improving the stability of the limiting effect.

[0073] Alternatively, the front limiting part 31 is configured as a limiting protrusion protruding upward on the top surface of the scraper cover plate 221. When the scraper 21 rotates backward to the limit position, the limiting protrusion on the scraper cover plate 221 mutually limits and cooperates with the edge of the housing 1. With this arrangement, the angle limiting effect of the scraper 21 in the forward rotation direction can be successfully achieved. Moreover, the structure is simple and easy to process and manufacture.

[0074] Specifically, the scraper cover plate 221 is provided with a rear limiting part 32, which is constructed as a third limiting slope extending downward and backward on the rear side of the scraper bracket 222. The housing 1 is provided with a fourth limiting slope located in front of the third limiting slope and cooperating with the third limiting slope.

[0075] It is understandable that the third limiting inclined surface on the scraper bracket 222 and the fourth limiting inclined surface on the housing 1 limit each other when the scraper 21 rotates forward to the limit position. This arrangement can increase the force contact area between the rear limiting part 32 and the housing 1, thereby improving the uniformity of force between the two and thus improving the stability of the limiting effect.

[0076] Alternatively, the rear limiting part 32 is configured as a limiting protrusion protruding upward on the top surface of the scraper bracket 222. When the scraper 21 rotates backward to the limit position, the limiting protrusion on the scraper bracket 222 mutually limits and cooperates with the edge of the housing 1. With this arrangement, the angle limiting effect of the scraper 21 in the backward rotation direction can be successfully achieved, and the structure is simple and easy to process and manufacture.

[0077] The cleaning device according to a third aspect embodiment of the present invention includes the cleaning head 100 of the above embodiment. Thus, by employing the cleaning head 100, the cleaning effect of the cleaning device is improved, while the cost of the cleaning device is reduced, thereby enhancing the sound field competitiveness of the cleaning device.

[0078] The cleaning equipment described in this application may be a floor scrubber, a sweeper, a vacuum cleaner, a high-pressure washer, a robotic vacuum cleaner, and a window cleaning machine, but is not limited to these.

[0079] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0080] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0082] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning head (100), characterized in that, include: Shell (1); Scraper assembly (2), the scraper assembly (2) includes a scraper (21) and a scraper support frame (22), the scraper (21) is used to scrape off dirt from the surface to be cleaned, the scraper support frame (22) is connected to the scraper (21), and the scraper (21) is rotatably disposed on the housing (1). A limiting structure (3) is provided between the housing (1) and the scraper support frame (22), and the scraper (21) is adapted to rotate forward by up to 30° and backward by up to 90° under the limiting action of the limiting structure (3).

2. The cleaning head (100) according to claim 1, characterized in that, The scraper (21) is adapted to rotate forward by up to 10° under the limiting action of the limiting structure (3); and / or The scraper (21) is adapted to rotate backward by up to 65° under the limiting action of the limiting structure (3).

3. The cleaning head (100) according to claim 1, characterized in that, The limiting structure (3) includes: A front limiting part (31) is provided on the scraper support frame (22) and located on the front side of the scraper (21). The scraper (21) is adapted to rotate forward by up to 30° under the limiting action of the front limiting part (31) and the housing (1). The rear limiting part (32) is disposed on the scraper support frame (22) and located on the rear side of the scraper (21). The scraper (21) is adapted to rotate rearward by up to 90° under the limiting action of the rear limiting part (32) and the housing (1).

4. The cleaning head (100) according to claim 3, characterized in that, The front limiting part (31) is constructed with a first limiting inclined surface (311) extending downward and forward on the front side of the scraper support frame (22), and the housing (1) is provided with a second limiting inclined surface (312) located in front of the first limiting inclined surface (311) and cooperating with the first limiting inclined surface (311); or The front limiting part (31) is constructed with a limiting protrusion protruding upward from the top surface of the scraper support frame (22).

5. The cleaning head (100) according to claim 3, characterized in that, The rear limiting part (32) is constructed with a third limiting inclined surface extending downward and backward on the rear side of the scraper support frame (22), and the housing (1) is provided with a fourth limiting inclined surface located on the front side of the third limiting inclined surface and cooperating with the third limiting inclined surface; or The rear limiting part (32) is constructed with a limiting protrusion protruding upward from the top surface of the scraper support frame (22).

6. The cleaning head (100) according to claim 3, characterized in that, The scraper (21) is provided with a through hole (211), and the scraper support frame (22) includes: Scraper cover plate (221), the scraper cover plate (221) is disposed on the front side of the scraper (21) and is provided with the front limiting part (31); The scraper bracket (222) is located on the rear side of the scraper (21) and is provided with the rear limiting part (32). One of the scraper cover plate (221) and the scraper bracket (222) passes through the through hole (211) and is connected to the other of the scraper cover plate (221) and the scraper bracket (222).

7. The cleaning head (100) according to claim 1, characterized in that, The housing (1) is provided with a mounting groove (11) extending in the left-right direction; The scraper assembly (2) further includes: The fastener (23) is fitted into the mounting groove (11). The fastener (23) has a sliding groove (231) and an opening (232) communicating with the sliding groove (231) at the bottom. The top of the scraper (21) passes through the mounting groove (11) and the opening (232).

8. The cleaning head (100) according to claim 7, characterized in that, One end of the housing (1) is provided with a first snap-fit ​​part (12). The scraper assembly (2) further includes: The snap-fit ​​component (24) is disposed at one end of the fixing component (23). The snap-fit ​​component (24) is provided with a second snap-fit ​​part (241), and the first snap-fit ​​part (12) and the second snap-fit ​​part (241) are snap-fitted together.

9. The cleaning head (100) according to claim 7, characterized in that, The mounting groove (11) is provided with one of a limiting groove and a limiting rib, and the fastener (23) is provided with the other of a limiting groove and a limiting rib. The limiting groove and the limiting rib are engaged in a limiting fit in the left and right directions.

10. The cleaning head (100) according to claim 7, characterized in that, One end of the scraper (21) is provided with a limiting block, and the limiting block is engaged with one end of the fixing member (23) in the left and right directions.

11. The cleaning head (100) according to claim 1, characterized in that, The scraper (21) has elastic support blocks (213) at both ends of its front side in the left and right directions, and the elastic support blocks (213) are adapted to support the cleaning surface.

12. A cleaning head (100), characterized in that, include: Shell (1); The scraper assembly (2) includes a scraper (21), a scraper bracket (222), and a scraper cover plate (221). The scraper (21) is provided with a through hole (211). The scraper cover plate (221) is located on the front side of the scraper (21), and the scraper bracket (222) is located on the rear side of the scraper (21). One of the scraper cover plate (221) and the scraper bracket (222) passes through the through hole (211) and is connected to the other of the scraper cover plate (221) and the scraper bracket (222). At least one of the scraper bracket (222) and the scraper cover plate (221) is provided with a limiting structure (3) that cooperates with the housing (1). The scraper (21) is adapted to rotate within a predetermined angle under the limiting action of the limiting structure (3) and the housing (1).

13. The cleaning head (100) according to claim 12, characterized in that, The scraper cover plate (221) is provided with a front limiting part (31), which is constructed as a first limiting inclined surface (311) extending obliquely downward on the front side of the scraper cover plate (221). The housing (1) is provided with a second limiting inclined surface (312) located in front of the first limiting inclined surface (311) and cooperating with the first limiting inclined surface (311); or The front limiting part (31) is configured as a limiting protrusion protruding upward from the top surface of the scraper cover plate (221).

14. The cleaning head (100) according to claim 12, characterized in that, The scraper cover plate (221) is provided with a rear limiting part (32), which is constructed as a third limiting slope extending obliquely downward on the rear side of the scraper bracket (222). The housing (1) is provided with a fourth limiting slope located in front of the third limiting slope and cooperating with the third limiting slope; or The rear limiting part (32) is configured as a limiting protrusion protruding upward from the top surface of the scraper bracket (222).

15. A cleaning device, characterized in that, include: The cleaning head (100) according to any one of claims 1-14.

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