CN214382371U - Cleaning robot - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of cleaning equipment, and discloses a cleaning robot, which comprises a chassis, a rolling brush and a scraping strip component, wherein the rolling brush is arranged on the chassis, and the scraping strip component is positioned behind the rolling brush relative to the advancing direction of the cleaning robot; the scraping strip assembly comprises a scraping strip support and a scraping strip, the scraping strip support is detachably mounted at the bottom of the chassis, and the scraping strip is mounted on the scraping strip support. Because the scraping strip support is detachably arranged on the chassis, the scraping strip assembly is convenient to detach and install, and the scraping strip assembly can be efficiently and quickly maintained and replaced.

Description

Cleaning robot

Technical Field

The embodiment of the utility model provides a relate to cleaning equipment technical field, especially relate to a cleaning robot.

Background

At present, intellectualization becomes a trend of development of the household appliance industry, along with the development of information technology, more and more intelligent household appliances gradually enter our lives, particularly cleaning robots can automatically complete cleaning work by means of certain artificial intelligence, the labor intensity of workers is reduced, and convenience is brought to modern life. Generally, a cleaning robot washes the ground through a rolling brush, in order to prevent sewage generated after washing from spreading on the ground, a scraping strip needs to be arranged on the rear side of the rolling brush, the scraped sewage is sucked into a sewage tank through suction force, an existing scraping strip assembly is installed at the bottom of a chassis of the cleaning robot in a screw fixing mode, and when the scraping strip assembly is replaced and maintained, screws need to be loosened one by one, which is inconvenient and low in efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the utility model provides a cleaning robot can high-efficiently, swiftly demolish, change and scrape a subassembly.

The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:

a cleaning robot, comprising:

a chassis;

the rolling brush is arranged on the chassis; and

a wiper strip assembly located rearward of the drum brush with respect to a forward direction of the cleaning robot, the wiper strip assembly including:

the scraping strip bracket is detachably arranged at the bottom of the chassis; and

and the scraping strip is arranged on the scraping strip bracket.

Optionally, one end of the scraping bar support is provided with a first inserting part, and the other end of the scraping bar support is provided with a matching part;

the chassis is equipped with second grafting portion and thread slipping, first grafting portion with the cooperation of pegging graft of second grafting portion, but the mobile setting of thread slipping has lock position and unbuckling position:

when the slide fastener is located at the buckling position, the slide fastener is matched with the matching part and is used for limiting the matching part to move towards the direction far away from the chassis;

when the slide fastener is located at the tripping position, the slide fastener is separated from the matching part.

Optionally, the chassis is further provided with a buckling groove, the sliding buckle is movably installed in the buckling groove, the matching portion is provided with a first surface and a second surface which are opposite to each other, the first surface is borne in the buckling groove, and the sliding buckle is movable to the second surface and located at the buckling position.

Optionally, one end of the slide fastener is provided with a first fastening part, and the groove wall of the fastening groove is provided with a second fastening part;

when the slide fastener is positioned at the fastening position, the first fastening part is in fastening fit with the second fastening part;

when the slide fastener is located at the unlocking position, the first fastening part is separated from the second fastening part.

Optionally, the wiper strip support is provided with a first slot, the first slot is provided with a first slot wall, and the first insertion part and the matching part are respectively arranged at one end of the first slot;

the chassis is also provided with a second slot, the second slot is provided with a second slot wall, and the second inserting part and the slide fastener are respectively arranged at one end of the second slot;

the first slot wall is inserted into the second slot wall, and the second slot wall is inserted into the first slot wall.

Optionally, the first slot wall is provided with at least two notches, the second slot is provided with at least two limiting portions, and each limiting portion is located in one notch.

Optionally, the wiper strip has an inclined portion that protrudes out of the bottom of the chassis and extends obliquely downward in the advancing direction.

Optionally, the inclined portion has a connection side close to the wiper strip holder and a free side remote from the wiper strip holder, the inclined portion being disposed gradually smaller from the connection side toward the free side.

Optionally, the inclined portion has an inner surface facing the roll brush, the inner surface being disposed adjacent to or in contact with the roll brush.

Optionally, the inner surface is arranged in a cambered surface.

Optionally, the scraping bar is provided with an insertion groove, the scraping bar support is provided with an insertion portion, and the insertion portion is inserted into the insertion groove from one end side of the insertion groove and is detachably mounted in the insertion groove.

Optionally, two opposite first grooves are arranged on two sides of the insertion part;

the insertion groove is provided with a lateral notch, two opposite first convex strip portions are arranged on two sides of the lateral notch, and each first convex strip portion is inserted into one first groove.

Optionally, two opposite second raised strip portions are arranged on two sides of the insertion portion, and the second raised strip portions are located between the end portion of the insertion portion and the first groove;

two opposite second grooves are formed in the inserting groove, and each second convex strip portion is inserted into one second groove.

The embodiment of the utility model provides a beneficial effect is: the embodiment of the utility model provides a cleaning machines people includes chassis, round brush and scrapes the strip subassembly, and the round brush is installed on the chassis, scrapes the strip subassembly and is located the rear of round brush for cleaning machines people's direction of advance. The scraping strip assembly comprises a scraping strip support and a scraping strip, the scraping strip support is detachably mounted at the bottom of the chassis, and the scraping strip is mounted on the scraping strip support. Because the scraping strip support is detachably arranged on the base plate, the scraping strip assembly is convenient to detach and install, the screw does not need to be detached and installed, and the scraping strip assembly can be efficiently and quickly maintained and replaced.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a cross-sectional view of a cleaning robot according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembly of the chassis and the wiper strip assembly of FIG. 1;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a schematic view of the wiper strip holder and the wiper strip of FIG. 3;

FIG. 5 is a schematic view of the wiper strip holder and the wiper strip of FIG. 4 in an assembled state;

FIG. 6 is a schematic structural view of another perspective of the wiper strip assembly of FIG. 5;

FIG. 7 is an enlarged view of area A of FIG. 3;

FIG. 8 is a schematic view of the slider of FIG. 3;

fig. 9 is a cross-sectional view of a wiper strip assembly of a cleaning robot in another embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used herein are used in the description to indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, an embodiment of the present invention provides a cleaning robot, which includes a wiper strip assembly 100, a rolling brush 200 and a chassis 300, wherein the wiper strip assembly 100 and the rolling brush 200 are both installed at the bottom of the chassis 300, and the wiper strip assembly 100 is located behind the rolling brush 200 with respect to the advancing direction of the cleaning robot, so as to wipe up the dirt brushed by the rolling brush 200 and suck the dirt into a dust box or a sewage box. The wiper strip assembly 100 includes a wiper strip support 110 and a wiper strip 120, wherein the wiper strip support 110 is detachably mounted at the bottom of the chassis 300, and the wiper strip 120 is mounted at the wiper strip support 110. Through the structure, the scraping strip assembly 100 is detachably arranged at the bottom of the chassis 100, so that the scraping strip assembly 100 is convenient to detach and install, does not need to be detached and locked with screws, and can be efficiently and quickly maintained and replaced.

Referring to fig. 3 to 6, in the present embodiment, one end of the wiper strip support 110 is provided with a first inserting portion 114, and the other end is provided with a matching portion 115. The chassis 300 is provided with a second insertion part 312 and a slide fastener 320, and the first insertion part 114 is inserted and matched with the second insertion part 312. The slider 320 is movably disposed to have a latching position and a unlatching position: when the slide fastener is located at the fastening position, the slide fastener 320 is matched with the matching part 115 and used for limiting the matching part 115 to move towards a direction far away from the chassis 300; in the tripped position, the slider 320 is disengaged from the mating portion 115.

The slide fastener 320 is convenient for mounting and dismounting the scraper bar assembly 100, when the scraper bar assembly 100 is dismounted, the slide fastener 320 is moved to the tripping position, the matching part 115 of the scraper bar bracket 110 can move, and the first insertion part 114 of the scraper bar bracket 110 can be conveniently taken out of the second insertion part of the chassis 300; when the wiper strip assembly 100 is installed, the first insertion portion 114 of the wiper strip support 110 is inserted into the second insertion portion of the chassis 300, and then the slider 320 is moved to the engagement position, thereby fixing the wiper strip support 110.

It should be noted that in other embodiments, the detachable mounting structure of the wiper strip assembly 100 and the chassis 300 may be a snap-fit connection structure, a magnet-attracting fixing structure, or a combination thereof. Taking a magnet adsorption fixing structure as an example, at least two magnets are arranged on the bar scraping component 100, at least two magnets are arranged in the mounting groove of the chassis 300, the bar scraping component 100 is mounted in the mounting groove, and the magnets of the bar scraping component and the bar scraping component are adsorbed in a one-to-one correspondence manner to realize detachable mounting.

Further, the chassis 300 is further provided with a catching groove 313, the sliding buckle 320 is movably installed in the catching groove 313, the mating portion 115 has a first surface and a second surface opposite to each other, the first surface is loaded in the catching groove 313, the sliding buckle 320 is movable to the second surface to be located at a buckling position, that is, the sliding buckle 320 slides to the second surface to fix the mating portion 115 in the catching groove 313.

Referring to fig. 7 and 8, in the present embodiment, in order to further prevent the slide fastener 320 from moving and causing the engaging portion 115 of the wiper strip support 110 to loosen, a first engaging portion 322 is disposed at one end of the slide fastener 320, and a second engaging portion 3132 is disposed at a groove wall of the fastening groove 313, such that when the slide fastener 320 moves to the engaging position, the first engaging portion 322 engages with the second engaging portion 3132, whereas when the slide fastener 320 moves to the disengaging position, the first engaging portion 322 separates from the second engaging portion 3132.

Further, the first fastening portion 322 is a hook structure, the second fastening portion 3132 is a slot structure, and the hook structure is inserted into the slot structure to realize a fastening fit.

In the present embodiment, the first plugging portion 114 and the matching portion 115 are both bumps, and the shapes thereof are substantially rectangular blocks, but the first plugging portion 114 and the matching portion 115 may also be other shapes, and are not limited to the rectangular blocks in the present embodiment. Correspondingly, the second mating part 312 is a socket.

Referring to fig. 4, fig. 5 and fig. 7, in the present embodiment, the wiper strip support 110 is provided with a first slot 113, the first slot 113 has a first slot wall, and the first inserting portion 114 and the matching portion 115 are respectively disposed at one end of the first slot 113. The chassis 300 is further provided with a second slot 314, the second slot 314 has a second slot wall, and the second insertion portion 312 and the retaining slot 313 are located at two opposite ends of the second slot 314. The first slot wall is inserted into the second slot 314, and the second slot wall is inserted into the first slot 113, so as to further fix the bar support 110, and limit the bar support 110 in the forward and backward directions of the cleaning robot. It is apparent that the first and second insertion grooves 113 and 314 extend in the same direction as the axial direction of the roll brush such that the bar assembly is substantially parallel to the roll brush and the cleaning width of the bar assembly is equal to or greater than the cleaning width of the roll brush.

With reference to fig. 3, further, in order to prevent the first slot wall from moving in the extending direction of the second slot 314, the first slot wall is provided with at least two notches 1131, the second slot is provided with at least two position-limiting portions 3141, and each position-limiting portion 3141 is located in one notch 1131, so as to further limit the scraper bar assembly in the cleaning width direction of the cleaning robot, thereby improving the stability. The position-limiting portion 3141 is disposed in a column structure.

Referring to fig. 4, in the present embodiment, the scraping bar 120 is detachably engaged with the scraping bar support 110, and since the scraping bar 120 is detachably connected to the scraping bar support 110, when the scraping bar 120 needs to be replaced, only the scraping bar 120 needs to be separated from the scraping bar support 110, and a new scraping bar 120 can be installed on the scraping bar support 110, so as to achieve quick replacement.

Further, a first lateral insertion part (not shown) is disposed at one side of the bar support 110, and a second lateral insertion part (not shown) is disposed at one side of the bar 120. The first lateral inserting part of the wiper strip support 110 is detachably matched with the second lateral inserting part of the wiper strip 120 in a lateral inserting manner, so that the wiper strip 120 is detachably mounted on the wiper strip support 110.

Further, the first lateral inserting part is an inserting groove 111, the second lateral inserting part is an inserting part 121, and the inserting part 121 is inserted into the inserting groove 111 from one end side of the inserting groove 111. It can be understood that two opposite side ends of the bar support 110 are in a port shape, the insertion groove 111 has a lateral groove (not labeled), the lateral groove is in a long strip shape and communicates with the accommodating space of the insertion groove 111, and the lateral groove communicates with the two opposite side ends of the bar support 110. Therefore, when the insertion part 121 is inserted into the insertion groove 111 from one end side of the insertion groove 111, the insertion part 121 moves along the side slot and is gradually received in the insertion groove 111.

Furthermore, one side of the lateral notch is provided with a hook portion 1111, and the other side of the lateral notch is provided with a top portion 1112. A locking groove 1211 is formed at one side of the insertion part 121, and a recess 1212 is formed at the other side of the insertion part 121. The hook portion 1111 is inserted into the slot 1211, and the top 1112 abuts against the recess 1212. It can be understood that, when the cleaning robot moves, in order to make the scraping bar 120 always abut against the ground to collect water on the ground, the hook portion 1111 and the abutting portion 1112 jointly abut against the insertion portion 121, so as to prevent the scraping bar 120 from separating from and deviating from the scraping bar support 110 during the movement of the cleaning robot, thereby ensuring that the scraping bar always abuts against the ground.

In this embodiment, the other side of the scraping bar 120 is provided with an inclined part 123, the inclined part 123 extends out of the bottom of the chassis 300 and extends obliquely downwards in the advancing direction of the cleaning robot, and one side of the inclined part 123 far away from the second lateral inserting part is abutted against the ground, so that dirt such as accumulated water or hair accumulated on the ground is scraped, and the cleaning robot can collect and clean the dirt conveniently.

Further, the inclined portion 123 has a connecting side 1231 and a free side 1232, the connecting side 1231 is connected to the second lateral inserting portion, the free side 1232 is far away from the second lateral inserting portion, and the inclined portion 123 is gradually reduced from the connecting side 1231 to the free side 1232, that is, the free side 1232 of the inclined portion 123 is small, and is easy to be attached to the ground surface to scrape off sewage, debris and the like on the ground surface.

Further, the inclined portion 123 has an inner surface facing the drum brush 200, the inner surface being disposed adjacent to or in contact with the drum brush 300, and a space for absorbing the garbage and the sewage is formed between the drum brush 300 and the wiper strip 120, and the garbage and the sewage rise along the inner surface of the inclined portion 123 to be sucked into the sewage tank.

Furthermore, the inner surface of the inclined portion 123 is formed in an arc surface, and is further adapted to the circumferential surface of the cylindrical rolling brush 300, thereby improving the cleaning effect.

In this embodiment, the scraping strip 120 is made of rubber, has good flexibility, and can deform along with the fluctuation of the ground surface, thereby ensuring that the scraping strip is always attached to the ground surface.

As shown in fig. 5 and fig. 6, in the present embodiment, the first slot 113 is connected to the first lateral inserting portion and is respectively located at two sides of the wiper strip holder. The first lateral plug-in part is located between the first plug-in part 114 and the matching part 115, that is, the first plug-in part 114 and the matching part 115 are respectively disposed at one end of the first slot 113.

Referring to fig. 2 and fig. 3, in the present embodiment, the chassis 300 includes a chassis body 310 and the slide fastener 320, the slide fastener 320 is movably mounted on the chassis body 310, and the slide fastener 320 is used for locking the wiper strip assembly 100, so that the wiper strip assembly 100 is fixedly mounted on the chassis body 310.

Further, the chassis body 310 is provided with a mounting groove 311, a second inserting portion 312, a catching groove 313 and a second slot 314, wherein the second inserting portion 312 and the catching groove 313 are respectively located at two opposite ends of the mounting groove 311. The rolling brush 200 is rotatably mounted in the mounting groove 311, the second insertion part 312 is used for being inserted into the first insertion part 114 of the bar scraping support 110, and the fastening groove 313 is used for allowing the fitting part 115 to extend into, so that the sliding fastener 320 can abut against the fitting part 115 in the sliding process, and the bar scraping support 110 is locked.

In this embodiment, the chassis body 310 is provided with a plurality of protrusions 315 at the mounting groove 311, a plurality of inner grooves 116 are provided on the outer side surface of the first groove wall of the wiper strip support 110, one protrusion 315 corresponds to one inner groove 116, and the inner groove 116 plays a role in limiting.

When the scraper bar support 110 is installed, the first inserting portion 114 of the scraper bar support 110 is inserted into the second inserting portion 312, the first groove wall of the scraper bar support 110 is inserted into the second slot 314, so that the second groove wall is inserted into the first slot 113, at this time, each limiting portion 3141 is correspondingly located in one notch 1131, the first surface of the matching portion 115 of the scraper bar support 110 is received in the buckling groove 313, the sliding buckle 320 is slid, and the sliding buckle 320 abuts against the second surface of the matching portion 115 to lock the scraper bar support 110.

Referring to fig. 7 and 8, in the present embodiment, the sliding buckle 320 has an inverted hook 321, a sliding slot 3131 is disposed at the bottom of the buckling slot 313, and the inverted hook 321 is inserted into the sliding slot 3131, so that the sliding buckle 320 is installed in the buckling slot 313. The size of the catching groove 313 is larger than that of the sliding buckle 320, so that the sliding buckle 320 has a movable space in the catching groove 313. When the slider 320 slides to the engaged position, the slider 320 abuts against the engaging portion 115, thereby locking the wiper strip assembly 100. It will be appreciated that the slider 320 securely mounts the bar support 110 to the groove wall of the catching groove 313 by means of the first catching portion 322 and the barb 321, thereby preventing the bar support 110 from being separated from the groove wall of the catching groove 313 when the bar 120 scrapes the cleaning surface.

Further, the number of the barbs 321 is two, which are respectively a first barb (not labeled) and a second barb (not labeled), and the number of the sliding grooves 3131 is two, which are respectively a first sliding groove (not labeled) and a second sliding groove (not labeled), the first barb is inserted into the first sliding groove, and the second barb is inserted into the second sliding groove. It will be appreciated that the slider 320 can be tightly fitted into the catching groove 313 by the cooperation of the first and second barbs.

Further, a protrusion 31311 is disposed on a sidewall of the sliding groove 3131, when the barb 321 slides to the engaging position or the disengaging position, one end of the barb 321 contacts with the sidewall of the sliding groove 3131, and the other end of the barb 321 contacts with the protrusion 31311. Preferably, the barb 321 is made of an elastic material such as plastic or silica gel, so that when the sliding buckle 320 slides in the sliding groove 3131, the barb 321 elastically deforms via the protrusion 31311, and returns to the original shape after the barb 321 passes over the protrusion 31311, thereby realizing the mutual switching between the buckling position and the releasing position of the sliding buckle 320. It can be understood that when the sliding buckle 320 slides to one end of the sliding groove 3131, the end of the sliding buckle 320 abuts against the matching portion 115, and the sliding buckle 320 locks the bar assembly 100, and the sliding buckle 320 is in a locked state; when the sliding buckle 320 slides to the other end of the sliding groove 3131, the end of the sliding buckle 320 does not abut against the matching portion 115, and the wiper strip assembly 100 is in an unbuckled state.

Referring to fig. 9, fig. 9 is a cross-sectional view of a wiper strip assembly of a cleaning robot according to another embodiment of the present invention, which differs from the wiper strip assembly of the cleaning robot of the previous embodiment in the following ways:

the first lateral inserting part of the scraping bar support is an inserting part 112, the second lateral inserting part of the scraping bar is an inserting groove 122, and the inserting part 112 is inserted into the inserting groove 122 from one end of the inserting groove 122, so that the scraping bar support 110 is detachably connected with the scraping bar 120.

Further, two opposite sides of the insertion portion 112 are provided with first grooves 1121, the insertion groove 122 has a lateral slot (not labeled), two opposite first protruding strips 1221 are provided on two sides of the lateral slot, when the bar support 110 is inserted into the insertion groove 122 of the bar 120 from the lateral slot, each first protruding strip 1221 is inserted into one first groove 1121, so as to achieve quick assembly between the bar support 110 and the bar 120, and the first protruding strips 1221 are engaged with the first grooves 1121 to prevent the insertion portion 112 of the bar support 110 from being disengaged from the insertion groove 122 of the bar 120.

Further, in order to better fix the insertion portion 112 of the bar support 110 in the insertion groove 122 of the bar 120, two opposite second protruding strip portions 1122 are provided on both sides of the insertion portion 112, the second protruding strip portions 1122 are located between the end of the insertion portion 112 and the first grooves 1121, the groove wall of the insertion groove 122 is provided with two opposite second grooves 1222, and each second protruding strip portion 1122 is inserted into one second groove 1121.

In this embodiment, since the wiper strip 120 covers the wiper strip support 110 to achieve the laterally detachable engagement, since the wiper strip 120 is usually made of rubber and has flexibility, the first protruding strip 1221 and the second groove 1222 of the insertion groove 122 of the wiper strip 120 cover and clamp the insertion portion 112 of the wiper strip support 110, so as to prevent the wiper strip support 110 from falling off.

As for other aspects of the cleaning robot and the bar scraping assembly of the present embodiment, which are substantially the same as those of the cleaning robot and the bar scraping assembly of the above embodiments, reference may be made to the above details, which are not repeated herein.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (13)

1. A cleaning robot, characterized by comprising:

a chassis;

the rolling brush is arranged on the chassis; and

a wiper strip assembly located rearward of the drum brush with respect to a forward direction of the cleaning robot, the wiper strip assembly including:

the scraping strip bracket is detachably arranged at the bottom of the chassis; and

and the scraping strip is arranged on the scraping strip bracket.

2. The cleaning robot according to claim 1,

one end of the scraping strip bracket is provided with a first inserting part, and the other end of the scraping strip bracket is provided with a matching part;

the chassis is equipped with second grafting portion and thread slipping, first grafting portion with the cooperation of pegging graft of second grafting portion, but the mobile setting of thread slipping has lock position and unbuckling position:

when the slide fastener is located at the buckling position, the slide fastener is matched with the matching part and is used for limiting the matching part to move towards the direction far away from the chassis;

when the slide fastener is located at the tripping position, the slide fastener is separated from the matching part.

3. The cleaning robot as claimed in claim 2, wherein the chassis further defines a catch slot, the slider is movably mounted in the catch slot, the engaging portion has a first surface and a second surface opposite to each other, the first surface is supported in the catch slot, and the slider is movable to the second surface to be located in the catch position.

4. The cleaning robot as claimed in claim 3, wherein a first engaging portion is provided at one end of the slide fastener, and a second engaging portion is provided at a wall of the engaging groove;

when the slide fastener is positioned at the fastening position, the first fastening part is in fastening fit with the second fastening part;

when the slide fastener is located at the unlocking position, the first fastening part is separated from the second fastening part.

5. The cleaning robot according to claim 2, 3 or 4,

the scraping bar support is provided with a first slot, the first slot is provided with a first slot wall, and the first inserting part and the matching part are respectively arranged at one end of the first slot;

the chassis is also provided with a second slot, the second slot is provided with a second slot wall, and the second inserting part and the slide fastener are respectively arranged at one end of the second slot;

the first slot wall is inserted into the second slot wall, and the second slot wall is inserted into the first slot wall.

6. The cleaning robot as claimed in claim 5, wherein the first slot wall has at least two notches, and the second slot has at least two position-limiting portions, each of the position-limiting portions being located in one of the notches.

7. The cleaning robot according to claim 1, wherein the wiper strip has an inclined portion that protrudes from a bottom portion of the chassis and extends obliquely downward in the advancing direction.

8. The cleaning robot according to claim 7, wherein the inclined portion has a connection side close to the wiper strip holder and a free side far from the wiper strip holder, and the inclined portion is tapered from the connection side toward the free side.

9. The cleaning robot according to claim 7, wherein the inclined portion has an inner surface facing the drum brush, the inner surface being disposed near or in contact with the drum brush.

10. The cleaning robot of claim 9, wherein the inner surface is contoured.

11. The cleaning robot as claimed in claim 1, wherein the wiper strip is provided with an insertion groove, and the wiper strip holder is provided with an insertion portion which is inserted into the insertion groove from one end side of the insertion groove to be detachably mounted in the insertion groove.

12. The cleaning robot according to claim 11,

two opposite first grooves are formed in two sides of the insertion part;

the insertion groove is provided with a lateral notch, two opposite first convex strip portions are arranged on two sides of the lateral notch, and each first convex strip portion is inserted into one first groove.

13. The cleaning robot according to claim 12,

two opposite second convex strip parts are arranged on two sides of the insertion part, and the second convex strip parts are positioned between the end part of the insertion part and the first groove;

two opposite second grooves are formed in the inserting groove, and each second convex strip portion is inserted into one second groove.

Images