CN117752255A - Dead-angle-free cleaning head - Google Patents

Abstract

The invention discloses a dead-angle-free cleaning head which is used for a water and dust circulation floor washer and comprises a shell, a fixing assembly and a cleaning roller, wherein the shell is provided with two side walls, and an inner cavity is formed between the two side walls; the two ends of the fixing component are respectively arranged on the inner sides of two side walls of the shell, one end of the fixing component is detachably connected with one side wall of the shell, and the other end of the fixing component is clamped with the other side wall of the shell; the cleaning roller is sleeved on the fixing component and is arranged in the inner cavity, and the cleaning roller can rotate around two ends of the fixing component; the elastic abutting part of the cleaning roller and the surface to be cleaned extends to two ends beyond the inner walls of the two side walls of the shell. The dead-angle-free cleaning head provided by the invention has the effects of low noise, low power consumption and dead-angle-free cleaning by using only a single cleaning roller.

Description

Dead-angle-free cleaning head

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a dead-angle-free cleaning head for a water and dust circulation floor cleaning machine.

Background

Chinese patent CN217186004U discloses a cleaning cylinder and cleaning tool of leak protection water, wherein this cleaning cylinder of leak protection water includes cylinder support and cladding in the cylinder sponge in the cylinder support outside, and this cylinder support one end is equipped with the cavity, and the other end is equipped with flexible pivot mechanism cylinder sponge both ends are equipped with the water locking mechanism that prevents the liquid outflow when the cylinder washs respectively. Because the two ends of the roller sponge are respectively provided with the water locking mechanisms which can avoid the water leakage phenomenon on the side surface of the roller, the water locking mechanisms can reduce the friction force between the water locking mechanisms and the cleaning head shell, and can improve the water tightness between the roller sponge and the cleaning head shell. Meanwhile, the reduction of the service life of the cleaning roller caused by the existence of larger friction force can be avoided, the effective performance of the battery is improved, and the reduction of the overall water absorption and moisture retention performance of the roller sponge can be avoided. In addition, the water locking mechanism reduces the elastic deformation between the end part of the sponge layer and the side wall of the cleaning head shell, and naturally reduces the expansion supporting force of the side wall of the cleaning head shell in the process of drying and hardening the sponge layer, thereby prolonging the service life of the cleaning head shell. As can be seen from the descriptions of fig. 12 and paragraph 76 of the specification, even if the two ends of the sponge are provided with complex water locking mechanisms, the width of the two ends of the contact portion of the sponge roller cannot be larger than or equal to the whole width of the cleaning roller clamped by the shell of the cleaner, so that the cleaning device has a dead zone where the shell clamps the thickness dimension of the two side walls of the sponge roller when cleaning the surface to be cleaned.

Chinese patent CN114343472A, CN114343473A, CN114343474a discloses a floor brush and a cleaning device having the same, the floor brush comprising: the floor brush main body is provided with a first accommodating space and a second accommodating space, and a driven piece is rotatably arranged on the floor brush main body; the first rolling brush is rotationally arranged in the first accommodating space and is abutted with the driven piece; the second rolling brush is rotationally arranged in the second accommodating space; the driving assembly is arranged on the ground brush main body; the driven piece is connected with the driving component; the first rolling brush comprises at least two rolling brush bodies which are arranged at intervals and coaxially and a support saddle arranged between the adjacent rolling brush bodies; the support is connected with the ground brush main body so that the other end part of the first rolling brush can be at least partially exposed out of the first accommodating space; wherein a spacing area exists between two adjacent rolling brush bodies, and the second rolling brush is configured to clean at least the surface to be cleaned corresponding to the spacing area. Through the mode, the cleaning device has the advantages of convenience in use, high cleaning efficiency and good cleaning effect. The cleaning equipment can realize dead angle-free cleaning of the area to be cleaned by two groups of staggered rolling brush groups with coaxial driving gaps in different axial directions, but the scheme is provided with two groups of rolling brush groups, so that the mechanism is too complex, and the maintenance and cleaning of the rolling brush groups are inconvenient.

In general, a cleaning roller mounted in a surface cleaner to be cleaned using a water and dust circulation technology, specifically, includes a cleaning roller body (outer cylinder) made of hard material and a cleaning roller outer layer made of soft material coated on the cleaning roller inner layer and capable of absorbing water. The cleaning rollers of the prior art mentioned above are all complete components of the combination of the inner cleaning roller cylinder and the outer cleaning roller cylinder, and the coupling of the associated drive means to the cleaning roller is usually referred to as the coupling of the drive means to the inner cleaning roller cylinder only.

In the prior art, an inner cylinder is arranged in an outer cylinder of a cleaning roller, a motor in the inner cylinder is powered by a power line of which one end is electrically connected with a hinged end of a cleaning head (a shell of which a cleaning tool is arranged on a surface to be cleaned), and the thickness dimension of two side walls of the cleaning roller clamped by the cleaning head shell of a single cleaning roller can become dead angle blind areas of the area to be cleaned; although the cleaning heads with multiple cleaning rollers can overcome the thickness dimension blind areas of the two side walls of the cleaning heads, the maintenance and cleaning are complicated due to the large number of the cleaning rollers. On the other hand, in order to prevent the cleaning roller from leaking, the elastic compression amount of the cleaning heads of the single cleaning roller for clamping the two side walls of the cleaning roller and the two ends of the cleaning roller is larger, the power consumption of the cleaner is larger when the cleaner works, the noise is larger, and the abrasion to the cleaning roller is larger; the cleaning heads with multiple cleaning rollers drive the cleaning rollers to work simultaneously, so that the cleaner consumes more power and has larger noise during working. Thereby causing loud noise and loud vibration in the working process of the cleaning tool.

Disclosure of Invention

The invention mainly solves the technical problem of providing the cleaning head for the water and dust circulation floor cleaning machine, which not only can use a single cleaning roller, but also can realize the efficient cleaning of dead-angle-free dead areas of the surface to be cleaned, and can reduce the power consumption and noise of the floor cleaning machine.

In order to solve the above problems, in a first aspect, the present invention provides a dead-angle-free cleaning head for a water and dust circulation floor scrubber, the dead-angle-free cleaning head comprising:

the shell is provided with two side walls, and an inner cavity is formed between the two side walls;

one end of the fixing component is detachably connected with one side wall of the shell;

the cleaning roller is sleeved on the fixing assembly and is arranged in the inner cavity, the outer ring of the fixing assembly is coupled with the inner ring of the cleaning roller, and the cleaning roller can rotate around one end of the fixing assembly;

the elastic abutting part of the cleaning roller and the surface to be cleaned extends to two ends beyond the outer walls of the two side walls.

Further, the other end of the fixing component is not in contact with the other side wall of the shell, and the outer ring of the other end of the fixing component is coupled with the inner ring of the cleaning roller.

Further, the cleaning roller includes:

an inner cylinder body, in which a coupling part for driving the cleaning roller to rotate is arranged;

The outer cylinder body is sleeved on the outer periphery of the inner cylinder body, and inner chamfers at two ends of the outer cylinder body extend out of two ends of the inner cylinder body respectively to form compression deformation parts.

Further, deformation extension parts are arranged on the outer ring side walls at the two ends of the outer cylinder body in the area where the outer ring side walls extend out of the lowest parts of the two side walls of the shell body, so that the deformation extension parts extend out of the two side walls when the outer cylinder body is pressed.

Further, the inner sides of the two side walls of the shell and the corresponding parts of the outer ring side walls are recessed away from the two end surfaces of the outer cylinder body to form avoidance grooves, so that friction between the compression deformation parts at the end parts of the outer cylinder body and the two side walls of the shell is reduced.

Further, the fixing assembly includes a fixing portion detachably connected to a side wall of the housing, and the fixing portion includes:

the connecting end of the hinge seat is fixed on one side wall of the shell through a screw;

the hinge end is hinged with the hinge seat;

the hinge end is hinged with the hinge seat through the hinge pin.

Further, the dead-angle-free cleaning head further comprises:

one end of the clamping assembly is clamped with the other side wall of the shell;

when the cleaning roller is installed in the shell, one end of the inner cylinder body is rotationally connected with the fixing part, the other end of the inner cylinder body is rotationally connected with the clamping assembly, the compression deformation part is just in the avoidance groove, and the compression deformation part is attached to two side walls of the shell.

Further, the other end of the clamping assembly is detachably connected with the fixing part, and the clamping assembly and the fixing assembly are connected to form a whole.

Further, the other end of the clamping assembly is in interference fit with the inner wall of the inner cylinder body, and the clamping assembly is not in direct contact with the fixing assembly.

Further, a reinforcing protrusion is arranged on a side wall of the shell corresponding to the fixing portion, the reinforcing protrusion is in a shape of a circular truncated cone, and a plurality of fixing holes for detachably connecting one end of the driving portion are formed in the top surface of the reinforcing protrusion.

Further, a truncated cone-shaped clamping reinforcing protrusion is arranged on a side wall of the shell corresponding to the clamping assembly, and a clamping groove for the clamping assembly to be clamped into and fixed is formed in the direction of the clamping reinforcing protrusion to the top surface of the inner cavity of the shell.

Further, the clamping groove is a polygonal through groove, and the clamping assembly can be directly pressed from the outside of the shell through the clamping groove.

In one embodiment, the securing assembly further comprises:

and one end of the motor is arranged on the fixed part, the other end of the motor is provided with an output shaft, the output shaft sleeve is provided with a coupler, the fixed assembly is an integral body formed by sequentially and detachably connecting the fixed part, the motor and the coupler, and the coupling part of the inner cylinder body is coupled with the coupler.

Further, the coupling is detachably connected with the clamping assembly.

In one embodiment, the securing assembly further comprises:

the motor, one end install in fixed part, the other end has the output shaft, the output axle sleeve is equipped with the shaft coupling, fixed subassembly is fixed part, motor, shaft coupling can dismantle in proper order and connect the whole that forms, the coupling part of inner tube body with the shaft coupling, fixed subassembly by the coupling part of inner tube body is with joint subassembly separates, during maintenance joint subassembly can be along with the cleaning roller separates.

Further, the cleaning head further comprises:

the squeezing strip is arranged on the arc-shaped inner top wall of the inner cavity of the shell, which is elastically abutted with the cleaning roller, and is used for squeezing out sewage generated after the cleaning roller cleans the surface to be cleaned.

Further, the dead-angle-free cleaning head further comprises:

the shovel strip is clamped on the bottom wall of the shell and positioned behind the cleaning roller, the shovel strip is arranged between the two side walls and provided with an arc-shaped guide surface facing the cleaning roller, and a gap is formed between the arc-shaped guide surface and the outer peripheral surface of the cleaning roller.

Further, the outer cylinder body is made of flexible materials, and can deform when the outer cylinder body is subjected to external force.

In a second aspect, the invention also discloses a water and dust circulation floor washer, which comprises the dead-angle-free cleaning head in the first aspect.

The invention has the beneficial effects that:

when the outer cylinder body is deformed at the elastic butt joint part of the outer cylinder body and the surface to be cleaned under the action of gravity of the cleaning head, the outer cylinder body can extend out of the two side walls of the cleaning head shell to prevent the cleaning dead angle from being formed due to the blocking of the two side walls of the cleaning head shell. When the outer cylinder body is attached to the surface to be cleaned and rolls, the self gravity of the floor cleaning machine presses one side of the outer cylinder body attached to the surface to be cleaned to be attached to the surface to be cleaned and deform, and at the moment, the deformation extension part can extend to the outer part of the cleaning head shell so as to achieve the effect of cleaning the surface to be cleaned opposite to the two side walls of the shell. The inner sides of the two side walls of the cleaning head shell and the corresponding parts of the outer ring side walls of the outer cylinder body of the cleaning roller are sunken away from the two end surfaces of the outer cylinder body to form avoidance grooves, so that friction between the compression deformation parts of the end parts of the outer cylinder body and the two side walls of the cleaning head shell is reduced, and power consumption and noise of the floor cleaning machine can be reduced. The cleaning head shell is provided with the reinforcing protrusion on one side wall corresponding to the fixing part of the fixing assembly, the other side wall corresponding to the clamping assembly is provided with the round table-shaped clamping reinforcing protrusion, the clamping effect of the two side walls of the cleaning head shell on the cleaning roller is effectively improved, meanwhile, the groove design of avoiding the side walls of the thinner cleaning head shell and the chamfer design of the two side walls of the cleaning head shell are close to the adjacent areas of the cleaning roller and the surface to be cleaned, the edges of the side walls of the shell can be covered by slight deformation of the outer cylinder, and the dead angle-free cleaning effect is achieved. The top surface of the round table-shaped reinforcing bulge is attached to the end surface of the inner cylinder body, and an avoiding groove for the end part of the outer cylinder body to enter is reserved between the reinforcing bulge and the side wall of the shell, so that friction between the side wall of the shell and the outer cylinder body is reduced under the condition that the cleaning roller is stably installed. The round table-shaped clamping reinforcing protrusion is attached to the end face of the inner cylinder body, and an avoiding groove for the end part of the outer cylinder body to enter is reserved between the clamping reinforcing protrusion and the side wall of the shell, so that friction between the side wall of the shell and the outer cylinder body is reduced under the condition that the cleaning roller is stably installed.

According to the dead-angle-free cleaning head provided by the invention, the reinforcing protrusions and the clamping reinforcing protrusions are respectively arranged on the two side walls of the cleaning head shell and used for ensuring the stable installation of the cleaning roller, meanwhile, the avoiding grooves are arranged on the outer rings of the reinforcing protrusions and the clamping reinforcing protrusions, so that the elastic abutting part of the two side walls of the cleaning head shell and the cleaning roller is in a thinner state, the outer cylinder body extends out of the inner cylinder body, and the outer cylinder body can deform under the action of gravity of the cleaning head and extend out of the edges of the two side walls of the cleaning head shell at the elastic abutting part of the outer cylinder body and the surface to be cleaned. The dead-angle-free cleaning head provided by the invention has the effects of low noise, low power consumption and dead-angle-free cleaning by using only a single cleaning roller.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art from these drawings without departing from the scope of protection of the present application.

Fig. 1 is a schematic view of a conventional floor scrubber with a scrub roller mounted to a cleaner head housing.

Fig. 2 is a planer view of fig. 1 in the direction a.

Fig. 3 is a perspective view of the dead-angle-free cleaning head of the present application without a cleaning roller mounted.

Fig. 4 is a perspective view of the dead-angle-free cleaning head of the present application after mounting a cleaning roller.

Fig. 5 is another perspective view of the dead-angle-free cleaning head of the present application without a cleaning roller mounted thereto.

Fig. 6 is another perspective view of the dead-angle-free cleaning head of the present application after installation of a cleaning roller.

Fig. 7 is a left side view of the dead-angle-free cleaning head of the present application after mounting a cleaning roller.

Fig. 8 is a right side view of the dead-angle-free cleaning head of the present application after mounting a cleaning roller.

Figure 9 is a planer view of the mounting assembly of one embodiment of the dead-angle-free cleaning head of the present application mounted to the housing at view angle B of figure 6.

Fig. 10 is a partial enlarged view of fig. 9 at E.

Fig. 11 is a view of fig. 6B showing the attachment assembly of one embodiment of the dead-angle-free cleaning head of the present application mounted to the housing after the attachment assembly engages the cleaning roller.

Fig. 12 is a schematic view of a fixed assembly of another embodiment of a dead-angle-free cleaning head of the present application mounted to a housing with a scrub roller.

Fig. 13 is a view of a planer view B in fig. 4 of another embodiment of the dead-angle free cleaning head of the present application.

Fig. 14 is a partial enlarged view of K in fig. 13.

Fig. 15 is a partial enlarged view of H in fig. 13.

Fig. 16 is a view of the D-plane of fig. 13.

Figure 17 is a view of a C-plane in figure 8 of another embodiment of a dead-angle free cleaning head of the present application.

Fig. 18 is a partial enlarged view of I in fig. 17.

Fig. 19 is a partial enlarged view at J in fig. 17.

Reference numerals:

1 is a shell;

1A is a first side wall, 1A1 is an avoidance groove ring, and 1A2 is a reinforcing part;

1B is a second side wall, 1B1 is an avoidance groove ring, and 1B2 is a reinforcing part;

1C is a wringing strip;

1D is a shovel bar;

2 is a fixed component;

m is a bearing;

2A is a fixed part, 2A1 is a hinge seat, 2A2 is a hinge end, and 2A3 is a pin shaft;

4 is a clamping assembly, 41 is a clamping shaft, 42 is a spring, 43 is a limiting seat, 44 is a bearing, 45 is a limiting piece, and 46 is a shaft cap;

2C is a motor, 2C1 is an output shaft, and 2C2 is a coupler;

3 is a cleaning roller, 31 is an inner cylinder, 31a is a coupling part, 32 is an outer cylinder, 32a is a left elastic end, 34 is a right elastic end, F is a compression deformation part, F is a deformation extension part, and G is a free extension part gap.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The claims hereof are to be read in further detail with reference to specific embodiments and to the accompanying drawings, in which the embodiments described are only some, but not all embodiments of the invention. Based on the embodiments of the present invention, one of ordinary skill in the art would be able to devise all other embodiments that are obtained without inventive effort and that are within the scope of the present invention.

It should be understood that, in the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "rear", etc., are used for convenience in describing the present invention only and are not intended to be limiting, since the directional terms, such as "upper", "lower", "left", "right", "front", "rear", etc., are based on the orientation, positional relationship shown in the drawings or the orientation or positional relationship in which the inventive product is conventionally put in use. Merely to explain the relative positional relationship, movement, etc. between the components shown in the drawings, the directional indication may be changed when the specific posture is changed.

Furthermore, ordinal words such as "first," "second," and the like in the description of the present invention are used for distinguishing purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. The features defining "first", "second" may be explicit or implicit and at least one of the features. In the description of the present invention, the meaning of "plurality" means at least two, i.e., two or more, unless otherwise specifically defined; the meaning of "at least one" is one or more.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may, for example, be defined as having a relatively fixed positional relationship between components, as having a physically fixed connection between components, as being detachably connected, or as a unitary structure; the connection can be mechanical connection or electric signal connection; can be directly connected or indirectly connected through intermediate media or components; the communication between two elements or the interaction relationship between two elements is not limited by the specification, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances except that the corresponding function or effect cannot be achieved when other understanding is made.

The invention, if related to a controller, a control circuit is a control technology or a unit conventional to a person skilled in the art, and the control circuit of the controller can be implemented by a person skilled in the art by adopting existing, such as simple programming. The software or program for realizing the control result in cooperation with the hardware is used as the conventional technology of the prior art or the person skilled in the art if the description does not show the control process of the related software or program in detail. The power supply also adopts the prior art in the field, and the main technical point of the invention is to improve the mechanical device, so the invention does not describe specific circuit control relation and circuit connection in detail.

The disclosure of the present invention provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described herein. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

The following will describe the aspects of the present application in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a cleaning head of a floor scrubber of the prior art is disclosed, which is applied to a cleaning tool, and the cleaning head can perform a cleaning action on a surface to be cleaned to achieve a cleaning effect, and the surface to be cleaned can be floors, walls, etc. with different roughness, such as floors of home or office, etc., and the cleaning head can clean dry garbage, wet garbage, mixed garbage, etc. Dry waste such as pericarp, plastic sheet, metal particles, paper dust, rice grains, etc. Wet waste such as water, beverage, greasy dirt, soy sauce, vinegar, etc. The mixed garbage has a certain viscosity, such as dry and wet mixed garbage of noodles, porridge, thick soup, flavoring sauce and the like. The cleaning head may also clean dust or marks etc. The cleaning head comprises a shell 1, a motor 2 and a roller 3, wherein the shell 1 comprises a first side plate 1a and a second side plate 1b which are oppositely arranged along the axial direction of the roller, and a mounting cavity is arranged between the first side plate 1a and the second side plate 1b and is provided with an opening facing the surface to be cleaned. The first side plate 1a and the second side plate 1b also have lower end portions facing the surface to be cleaned with a gap therebetween, which communicates with the opening. The motor 2 can be installed in this installation cavity, the cylinder 3 cup joint in on the output shaft coupling of motor 2, motor 2 can drive cylinder 3 rotation, and the while washing machine is continuous to spray clear water to cylinder 3 surface and suction from cylinder 3 surface by the sewage of extruding, just so the continuous realization is to the cleanness of clean surface. The drum 3 includes a hard cylindrical inner cylinder 31, and an elastic cylindrical outer cylinder 32 is wrapped around the outer surface of the inner cylinder 31, and the outer cylinder 32 is capable of absorbing water, deforming when being pressed by an external force, and recovering shape after the external force is removed. As shown in fig. 4, the left elastic end 32a of the outer tub and the right elastic end 34 of the outer tub are slightly deformed when the self-weight pressure of the cleaning head is applied, but the deformation cannot cover the wall thickness dimension of both sides of the cleaning head housing, and the thickness dimension of both side walls of the cleaning head housing holding the drum of the single drum becomes a dead zone of the cleaning region. It is therefore necessary to further reduce the dead zone of the cleaning head of the single drum.

As shown in fig. 3 to 19, the application discloses a dead-angle-free cleaning head for a water and dust circulation floor washer, which comprises a shell 1, a fixing assembly 2 and a cleaning roller 3, wherein the shell 1 is provided with two side walls (a first side wall 1A and a second side wall 1B), and an inner cavity is formed between the two side walls; the two ends of the fixing component 2 are respectively arranged on the inner sides of the two side walls of the shell, one end of the fixing component 2 is detachably connected with the first side wall 1A of the shell 1, and the other end of the fixing component 2 is clamped with the second side wall 1B of the shell 1; the cleaning roller 3 is sleeved on the fixed component 2 and is arranged in the inner cavity, and the cleaning roller 3 can rotate around two ends of the fixed component 2; wherein, under the free state and under the dead weight pressure of the cleaning head, the cambered surfaces of the cleaning roller 3 facing the surface to be cleaned are partially extended out of the lowest parts of the two side walls of the shell 1, and the elastic abutting parts of the cleaning roller 3 and the surface to be cleaned are extended out of the outer walls of the two side walls of the shell towards the two ends. The cleaning head provided by the invention has the effects of low noise, low power consumption and no dead angle cleaning by adopting only a single cleaning roller.

Fig. 3 and 5 are perspective views of the dead-angle-free cleaning head of the present application from two viewpoints, in which the cleaning roller 3 is not mounted, and show detailed structures of the first side wall 1A and the second side wall 1B of the housing 1.

Fig. 4 and 6 are perspective views of the dead-angle-free cleaning head according to the present application from two views after the cleaning roller 3 is mounted, and show that the cleaning roller 3 extends beyond the inner walls of the two side walls of the housing 1 toward the two ends in the free state after the cleaning roller 3 is mounted between the two side walls of the housing 1 in the area free from the two side walls.

Fig. 7 is a left side view of the dead-angle-free cleaning head of the present application after mounting the cleaning roller 3, showing the mounting structure of the first side wall 1A and one end of the fixed assembly 2.

Fig. 8 is a right side view of the dead-angle-free cleaning head of the present application after the cleaning roller 3 is mounted, showing a clamping structure of the second side wall 1B and the other end of the fixing assembly 2.

Specifically, in this embodiment, as shown in fig. 3 to 8, the cleaning roller 3 is located in an inner cavity defined by two side walls of the housing 1, the cleaning roller 3 extends along an axial direction of the cleaning roller and is clamped between the two side walls of the housing 1, one end of the fixing component 2 is mounted on the first side wall 1A of the housing 1, the other end of the fixing component 2 extends toward the other side wall of the housing 1, the other end of the fixing component is clamped with the second side wall 1B of the housing 1, the cleaning roller 3 is sleeved on the fixing component 2 and is disposed in the inner cavity, and the cleaning roller 3 can rotate around two ends of the fixing component 2. As shown in fig. 4, 6 to 8, the cambered surface of the cleaning roller 3 facing the surface to be cleaned in the free state and under the dead weight pressure of the cleaning head partially extends out of the lowest part of the two side walls of the shell 1. Like this, can let the cleaning roller 3 install in casing 1 after, the cambered surface part of cleaning roller 3 towards the surface of waiting to clean can roll at the surface of waiting to clean directly, avoid the fish tail the lowest department of the both sides wall of casing 1, the cambered surface part of cleaning roller 3 towards the surface of waiting to clean and the surface of waiting to clean elastic abutment's area is bigger, and the frictional force that receives that promotes the cleaning head to advance or retreat is bigger, and is of course also better the cleaning effect.

Further, in an alternative embodiment, as shown in fig. 3, 5 and 16 to 19, the dead-angle-free cleaning head further includes a wringing strip 1C, where the wringing strip 1C is disposed on an arc-shaped inner top wall of the inner cavity of the housing 1 elastically abutting against the cleaning roller 3 and extends toward the axial direction of the cleaning roller 3. As shown in fig. 17 to 19, the wringing strip 1C extends from the first side wall 1A toward the second side wall 1B along the axial direction of the cleaning roller 3 against the arc-shaped inner top wall of the housing inner cavity, the wringing strip 1C gradually decreases in the extension amount toward the axis of the cleaning roller 3 in the regions close to the first side wall 1A and the second side wall 1B, and the extension amount of the wringing strip 1C decreases as the regions close to the first side wall 1A and the second side wall 1B are located. The squeezing strip 1C is elastically abutted against the outer surface of the cleaning roller 3 and used for squeezing out sewage generated after the cleaning roller 3 cleans the surface to be cleaned.

Still further, in an alternative embodiment, as shown in fig. 11 to 13, the cleaning roller 3 includes an inner cylinder 31 and an outer cylinder 32. The inner cylinder 31 is provided with a coupling part 31a for driving the cleaning roller 3 to rotate, and the outer cylinder 32 is sleeved on the outer periphery of the inner cylinder 31. The coupling part 31a is arranged in the inner cylinder 31 of the cleaning roller 3, so that the outer surface of the fixing component 2 can conveniently drive the whole cleaning roller 3 to rotate, and further drive the outer cylinder 32 of the cleaning roller 3 to rotate to drag and sweep the surface to be cleaned. Of course, the outer surface of the fixed component 2 can also be not actively rotated, other areas outside the outer surface of the fixed component 2 can not be rotated, relative rotation between the outer surface of the fixed component 2 and other areas outside the outer surface of the fixed component 2 is realized inside the fixed component 2, when a user pushes and pulls the cleaning head of the floor cleaning machine to advance or retreat, as a part of the surface of the outer cylinder 32 of the cleaning roller 3 is elastically abutted against the surface to be cleaned, friction force between the outer cylinder 32 and the surface to be cleaned spontaneously drives the cleaning roller 3 to rotate, and the coupling part 31a of the inner cylinder 31 of the cleaning roller 3 also spontaneously drives the outer surface of the fixed component 2 to rotate under the action of the coupling part 31a of the inner cylinder 31 of the cleaning roller 3, so that sliding friction between the inner cylinder 31 of the cleaning roller 3 and the outer surface of the fixed component 2 is reduced, the service life of the cleaning roller 3 is prolonged, and noise of the cleaning head of the floor cleaning machine during operation is reduced. As shown in fig. 11, 13 to 15, the two ends of the outer cylinder 32 extend out of the two ends of the inner cylinder 31, respectively, to form compression deformation portions F. The two ends of the outer cylinder 32 extend out of the two ends of the inner cylinder 31 respectively to form compression deformation parts F, so that the outer cylinder 32 is more favorable for driving the compression deformation parts F to simultaneously shrink towards a plurality of directions of the axle center and the geometric center of the cleaning roller 3 under the clamping of the first side wall 1A and the second side wall 1B, when the compression deformation parts F rotate to the area below the lowest parts of the two side walls of the shell 1 along with the rotation of the outer cylinder 32, the compression deformation parts F break through the constraint of the first side wall 1A and the second side wall 1B and extend outwards, the cleaning area of the surface to be cleaned, which is swept by the cleaning roller 3 once, is increased, and the cleaning blind area of the cleaning head of the single roller due to the wall thickness of the two side walls of the shell 1 is further reduced. The compression deformation part F of the elastic outer cylinder 32 can further reduce the friction force between the outer cylinder 32 and the first side wall 1A and the second side wall 1B in the clamped area of the first side wall 1A and the second side wall 1B, thereby prolonging the service life of the cleaning roller 3 and reducing the noise and energy consumption of the cleaning head of the floor washing machine during working.

As shown in fig. 16 to 19, in the vicinity of the area where the wringer bar 1C elastically presses the outer cylinder 32, the compression-deformation portion F is more compressed than other areas clamped between both side walls of the housing 1, that is, the area where the outer cylinder 32 is more likely to be pressed out of the sewage adsorbed by the outer cylinder 32 by the wringer bar 1C after cleaning the surface to be cleaned.

Still further, in an alternative embodiment, as shown in fig. 11 to 13, the outer cylinder 32 is made of a flexible material, and the outer cylinder 32 can be deformed when an external force is applied thereto. The softer the hardness of the outer cylinder 32, the smaller the friction force between the outer cylinder 32 and the first side wall 1A and the second side wall 1B, the stronger the outer cylinder 32 can extend to the outside of the two side walls of the shell 1, the easier the cleaning blind area of the cleaning head of the single roller caused by the wall thickness of the two side walls of the shell 1 can be further reduced, the service life of the cleaning roller 3 can be prolonged, and the noise and energy consumption of the cleaning head of the floor washer during working can be reduced.

As shown in fig. 13, the elastic contact portion of the cleaning roller 3 with the surface to be cleaned under the dead weight pressure of the cleaning head extends to both ends beyond the inner walls of the two side walls of the housing 1. This can prevent the formation of a dead space due to the blocking of both side walls of the cleaning head housing 1. When the elastic outer layer of the cleaning roller 3 is attached to the surface to be cleaned and rolls, the floor cleaning machine self gravity presses one side of the elastic outer layer of the cleaning roller 3 attached to the surface to be cleaned to be attached to the surface to be cleaned and deform, and at the moment, the deformation extension part can extend to the outside of the cleaning head shell 1 so as to achieve the effect of cleaning the surface to be cleaned opposite to the two side walls of the shell.

Further, in an alternative embodiment, as shown in fig. 17 to 19, outer ring side walls (not shown) at both ends of the outer cylinder 32 are provided with deformation extensions F at both ends where the outer cylinder 32 elastically abuts against the surface to be cleaned, and the deformation extensions F are converted from the compression deformation F breaking through the binding of the side walls of the housing 1 by the rotation of the outer cylinder 32 at the previous moment. As shown in fig. 18 and 19, the deformed extension f extends outwardly when the outer cylinder 32 is pressed. The two ends of the outer cylinder 32 extend out of the two ends of the inner cylinder 31 respectively to form a compression deformation part F, and the compression deformation part F breaks through the constraint of the two side walls of the shell 1 along with the rotation of the outer cylinder 32 and then is converted into an extension part F, so that the outer cylinder 32 is more beneficial to utilizing the elastic force of the cleaning head dead weight acting on the elastic abutting part of the outer cylinder 32 and the surface to be cleaned, which is directed to the two ends of the outer cylinder 32, to drive the compression deformation part F to break through the constraint of the first side wall 1A and the second side wall 1B and then is converted into the extension part F. As shown in fig. 18 and 19, the lowest part of the two side walls of the housing 1 extends outwards, and the elastic abutting part of the cleaning roller 3 and the surface to be cleaned extends to the two ends beyond the outer walls of the two side walls of the housing. Thereby increasing the cleaning area of the surface to be cleaned which is swept by the cleaning roller 3 once and further reducing the cleaning dead zone of the cleaning head of the single drum due to the wall thickness of the two side walls of the housing 1. As shown in fig. 18 and 19, a free extending gap G is left between the truncated cone-shaped chamfer conical surfaces of the reinforcement portion 1A2 and the reinforcement portion 1B2 and the inner chamfer conical surfaces of both ends of the outer cylinder 32. Although the outer cylinder 32 is deformed by being pressed, the deformed extension f is extended outward as much as the gap G remains. The gap G at the free extension position can enable the friction between the two ends of the outer cylinder 32 and the avoidance grooves 1A1 and 1B1 in high-speed rotation to be smaller, thereby being more beneficial to prolonging the service life of the cleaning roller 3 and reducing noise and energy consumption when the cleaning head works.

Further, in an alternative embodiment, as shown in fig. 3 and 5, the inner sides of the two side walls of the housing 1 and the corresponding side walls of the outer ring are recessed away from the two end surfaces of the outer cylinder 32 to form a recess, so as to reduce the friction between the compression deformation portion F at the end of the outer cylinder 32 and the two side walls of the housing 1. Specifically, as shown in fig. 3, the end surface of the inner wall of the second side wall 1B of the housing 1, which is opposite to the outer ring side wall and faces away from the outer cylinder 32, is recessed to form an avoidance groove 1B1. As shown in fig. 5, the inner wall of the first side wall 1A of the housing 1 and the end surface of the outer ring corresponding to the side wall of the outer ring facing away from the outer cylinder 32 are recessed to form an avoidance groove 1A1. The avoidance groove 1A1 and the avoidance groove 1B1 can enable the compression deformation part F at the end part of the outer cylinder 32 to have more space to extend outwards in the avoidance groove, so that the compression quantity of the compression deformation part F is further reduced, the friction force generated by compression between two side walls of the shell 1 when the outer cylinder 32 rotates is further reduced, the service life of the cleaning roller 3 is prolonged, and noise and energy consumption of the cleaning head of the floor washing machine during operation are reduced.

Still further, in an alternative embodiment, as shown in fig. 9 and 12, the fixing assembly 2 includes a fixing portion 2A, and the fixing portion 2A is detachably connected to the first side wall 1A of the housing 1;

The clamping assembly 4 is clamped with the second side wall 1B of the shell 1; when the cleaning roller 3 is mounted on the housing 1, one end of the inner cylinder 31 is rotationally connected with the fixing portion 2A, the other end of the inner cylinder 31 is rotationally connected with the clamping assembly 4, at this time, the compression deformation portion F is just located in the avoidance groove 1A1 and the avoidance groove 1B1, and the compression deformation portion F is attached to the first side wall 1A and the second side wall 1B of the housing 1. Specifically, as shown in fig. 9, 11 and 12, the middle outer ring of the fixing portion 2A is sleeved with a bearing M, the inner ring of the bearing M is in transition fit with the middle outer ring of the fixing portion 2A, and the outer ring of the bearing M is in transition fit with the inner wall of the inner cylinder 31, so as to realize the running fit between the fixing portion 2A and the inner cylinder 31. The fixed part 2A of the fixed component 2 is detachably connected with the first side wall 1A of the shell 1, and the clamping component 4 of the fixed component 2 is clamped with the second side wall 1B of the shell 1, so that a user can conveniently and directly press the end of the clamping component 4 from the second side wall 1B of the shell 1, and the separation of one end of the fixed component 2 and the shell 1 is realized.

Further, as shown in fig. 9, the fixed portion 2A includes hinge seats 2A1 and hinge ends 2A2 hinged to each other and pin shafts 2A3 pinned to both. The connecting end of the hinge seat 2A1 is fixed on the first side wall 1A through a screw, the hinge end 2A2 is hinged with the hinge seat 2A1 through a pin shaft 2A3, and the connecting end of the hinge end 2A2 is detachably connected with the motor 2C. The hinge structure of the fixing part 2A facilitates the hinge end 2A2 to hinge around the hinge seat 2A1 so as to realize the rotation of the whole fixing assembly 2 around the pin shaft 2A3, thereby facilitating the maintenance of the fixing assembly 2 or the cleaning roller 3 sleeved on the fixing assembly 2.

Further, as shown in fig. 10, the clamping assembly 4 includes a clamping shaft 41, a spring 42 sleeved on the clamping shaft 41 and limiting the clamping shaft 41 to be contracted or ejected, and a limiting seat 43 detachably connected with the coupling 2C2 and limiting the clamping shaft 41. Further, the clamping assembly 4 further comprises a bearing 44 sleeved at one end of the clamping shaft 41, a limiting piece 45 detachably connected to one end of the clamping shaft 41, and a shaft cap 46 covering one end of the outer ring of the bearing 44, wherein a step surface of the limiting piece 45 just limits the inner ring of the bearing 44 to move in a stringing manner along the axial direction of the clamping shaft 41. The design of the clamping assembly 4 with the bearing and capable of elastically stretching along the axial direction of the fixing part 2 is convenient for the shaft cap 46 of the clamping assembly 4 to be clamped on the second side wall 1B, and the relative rotation among the clamping shaft 41, the limiting seat 43 and the shaft cap 46 is realized by the mutual rotation of the inner ring and the outer ring of the bearing 44, so that the shaft cap 46 of the clamping assembly 4 is relatively static along with the second side wall 1B when the cleaning roller 3 rotates at a high speed. The telescopic clamping assembly 4 is convenient to separate the clamping assembly 4 of the fixed assembly 2 from the second side wall 1B in time by pressing the shaft cap 46, and the fixed assembly 2 or the cleaning roller 3 is convenient to maintain.

Further, in an alternative embodiment, as shown in fig. 5, a reinforcing protrusion 1A2 is disposed at a central position of the avoidance groove 1A1 on the inner wall of the first side wall 1A corresponding to the fixing portion 2A of the housing 1, the reinforcing protrusion 1A2 is configured as a circular truncated cone, and a plurality of fixing holes (not shown in the drawing) for detachably connecting one end of the fixing portion 2A are formed in a top surface of the reinforcing protrusion. By the design, one end part of the outer cylinder 32 of the cleaning roller 3 can have a certain buffer compressed space in the avoidance groove 1A1, and the round table-shaped reinforcing protrusion 1A2 has enough strength to support the installation of the fixed end of the fixed part 2A.

Still further, in an alternative embodiment, as shown in fig. 3, a circular truncated cone-shaped clamping reinforcing protrusion 1B2 is disposed at a central position of the avoidance groove 1B1 on the second side wall 1B corresponding to the clamping assembly 4, and a clamping groove (not shown in the drawing) for the clamping assembly 4 to be clamped and fixed is provided at a central position of the top surface of the inner cavity of the housing, where the clamping reinforcing protrusion 1B2 faces the top surface. By the design, not only a certain buffer compressed space can be formed at one end part of the outer cylinder 32 of the cleaning roller 3 at the avoiding groove 1B1, but also the circular truncated cone-shaped clamping reinforcing protrusion 1B2 has enough strength to support the clamping installation of the clamping end of the clamping assembly 4.

Further, as shown in fig. 3 and 5, the clamping groove is a polygonal through groove, and the clamping assembly can be directly pressed from the outside of the housing through the clamping groove. The user can conveniently press the end of the clamping assembly 4 directly from the second side wall 1B of the housing 1, so as to separate one end of the fixing assembly 2 from the housing 1.

It should be noted that, the reinforcing protrusions 1A2 and the clamping reinforcing protrusions 1B2 can reduce the thickness of the two side walls of the housing 1 blocking the two ends of the outer cylinder 32 from extending outwards under the condition of ensuring the stable installation of the cleaning roller 3, so as to achieve the effect of reducing friction.

Still further, in an alternative embodiment, as shown in fig. 9 to 12, the fixing assembly 2 further includes a motor 2C. One end of the motor 2C is mounted on the fixing portion 2A, the other end of the motor 2C is provided with an output shaft 2C1, a coupler 2C2 is sleeved on the output shaft 2C1, a coupling portion 31a of the inner cylinder 31 is coupled with the coupler 2C2, and the coupler 2C2 is detachably connected with the clamping assembly 4. The fixed component 2 further comprises a motor 2C, so that the extra precursor or rear driving force required by a user to keep the cleaning roller 3 continuously rotating in a set direction when pushing or pulling the cleaning head of the floor washing machine by hand can be reduced more, the use experience of the user when using the floor washing machine is improved, and the user can clean the surface to be cleaned more easily. The output end of the other end of the fixed part 2A is connected with one end of the motor 2C, the coupling part 31a of the inner cylinder 31 is coupled with the coupler 2C2, meanwhile, the coupler 2C2 is detachably connected with the clamping assembly 4, the fixed assembly 2 can keep the function of connecting the two side walls of the shell 1, the cleaning roller 3 can be easily sleeved on the fixed assembly 2 to realize the coupling of the two components, the fixed assembly 2 has the power output capability, and the use experience of a user when using the floor washing machine can be further improved.

In this application, the combination of the specific structures of the fixing component 2 and the clamping component 4 can be further subdivided into two embodiments, and the following parts are discussed in detail for these two different embodiments.

In an alternative embodiment, the fixing component 2 of the dead-angle-free cleaning head is formed by sequentially and detachably connecting the fixing part 2A, the motor 2C and the coupling 2C2, and the fixing component 2 and the clamping component 4 are detachably connected into a whole.

Fig. 9 is a B-direction planer view of the integral fixing assembly 2 and the clamping assembly 4 after being connected into a whole and then being mounted on the housing 1 in the view of fig. 6, and shows a specific structure of the integral fixing assembly 2 and the clamping assembly 4 in cooperation.

Fig. 10 is a partial enlarged view of fig. 9 at E, showing a specific structure of the clip assembly 4.

Fig. 11 is a B-direction planer view of the integral fixing assembly 2 and the clamping assembly 4 being fitted to the housing 1 under the angle of fig. 6 after the cleaning roller 3 is sleeved, showing the specific structure of the integral fixing assembly 2 and the clamping assembly 4 being fitted and the specific structure of the cleaning roller 3.

Specifically, in the present embodiment, as shown in fig. 9 to 11, one end of the fixing portion 2A of the fixing component 2 is detachably connected to the inner wall of the first side wall 1A of the housing 1, one end of the clamping component 4 is clamped to the inner wall of the second side wall 1B of the housing 1, and the fixing component 2 is a fixing portion 2A, a motor 2C, and a coupling 2C2 which are sequentially detachably connected to form a whole. After the fixed component 2 and the clamping component 4 are connected into a whole, the sleeve joint coupling of the cleaning roller 3 on the fixed component 2 can be conveniently realized, and when the cleaning roller 3 needs to be maintained, only one end of the clamping component 4 needs to be slightly pressed to realize the separation of the clamping component 4 and the second side wall 1B, so that the cleaning roller 3, the fixed component 2 and the clamping component 4 are conveniently maintained.

In an alternative embodiment, the securing assembly 2 and the clamping assembly 4 of the dead-angle-free cleaning head of the present application do not directly contact each other.

Fig. 12 is a schematic diagram of the split type fixing assembly 2 and the clamping assembly 4 in a matching scheme, in which the cleaning roller 3 is sleeved and mounted on the shell 1, and shows a specific structure of the split type fixing assembly 2 and the clamping assembly 4 in a matching scheme.

Fig. 13 is a B-direction planing view of the cleaning roller 3 sleeved on the split type fixing assembly 2 in the view angle of fig. 4, which shows a specific structure of the matching scheme of the split type fixing assembly 2 and the clamping assembly 4 and a specific mode that the cleaning roller 3 is sleeved on the fixing assembly 2.

Fig. 14 is a partial enlarged view of a position K in fig. 13, and shows a structure that the left end of the outer cylinder 32 elastically abuts against the first side wall 1A after the fixing assembly 2 is coupled to the cleaning roller 3 in the matching scheme of the split type fixing assembly 2 and the clamping assembly 4.

Fig. 15 is a partial enlarged view of H in fig. 13, which shows a structure that the right end of the outer cylinder 32 elastically abuts against the first sidewall 1B after the fixing assembly 2 is coupled to the cleaning roller 3 in the matching scheme of the split type fixing assembly 2 and the clamping assembly 4.

Fig. 16 is a plane view D in fig. 13, showing the cooperation structure of the wringing strip 1C and the shovel strip 1D with the cleaning roller 3.

Fig. 17 is a view of a dead-angle-free cleaning head according to an embodiment of the present application, which is shown in fig. 8 in a planer view from C, and shows the integral structure of the split type fixing assembly 2 and the clamping assembly 4 in the matching scheme that the fixing assembly 2 is clamped between two side walls of the housing 1 after being coupled with the cleaning roller 3.

Fig. 18 is a partial enlarged view of a portion I in fig. 17, which shows a structure that the left end of the outer cylinder 32 elastically abuts against the first side wall 1A after the fixing component 2 is coupled to the cleaning roller 3 in the matching scheme of the split type fixing component 2 and the clamping component 4.

Fig. 19 is an enlarged view of a portion J in fig. 17, which shows a structure that the right end of the outer cylinder 32 elastically abuts against the first sidewall 1B after the fixing assembly 2 is coupled to the cleaning roller 3 in the mating scheme of the split type fixing assembly 2 and the clamping assembly 4.

Specifically, in this embodiment, in the matching scheme of the fixing assembly 2 and the clamping assembly 4, the fixing assembly 2 and the clamping assembly 4 are two parts that are not in direct contact with each other, the fixing assembly 2 is a left half part, and the clamping assembly 4 is a right half part. The left half part is detachably connected with the first side wall 1A and is formed by a fixing part 2A, a motor 2C and a coupler 2C2 which are detachably connected in sequence; the right half part is not in direct contact with the left half part, the right half part comprises a clamping assembly 4 which can be detachably connected with the inner cylinder 31 of the cleaning roller 3, the right half part is separated from the left half part by the coupling part 31a of the inner cylinder 31 of the cleaning roller 3, and when maintenance is carried out, the clamping assembly 4 and the second side wall 1B are separated only by slightly pressing one end of the clamping assembly 4, and then the cleaning roller 3 and the clamping assembly 4 can be taken down together to form a whole. The advantage of this design is that the coupling 2C2 is only coupled to the coupling portion 31a of the inner cylinder 31 of the cleaning roller 3 in the middle, so that the stroke required for complete separation of the cleaning roller 3 from the fixed assembly 2 is shorter, and thus the user is more convenient when he needs to maintain the fixed assembly 2 or the cleaning roller 3.

Still further, in an alternative embodiment, as shown in fig. 3 to 8 and 16, the dead-angle-free cleaning head further includes a shovel bar 1D, where the shovel bar 1D is clamped on the bottom wall of the housing 1 located behind the cleaning roller 3 and is disposed between two side walls of the housing 1, and the shovel bar 1D has an arc-shaped guide surface (not shown in the drawings) facing the cleaning roller 3, and a gap (not shown in the drawings) is formed between the arc-shaped guide surface and the outer peripheral surface of the cleaning roller. The tip of the forefront end of the shovel bar 1D slightly elastically contacts the surface to be cleaned, when the cleaning head works, solid and liquid garbage hoisted by the cleaning roller 3 is hoisted into a garbage box (not shown in the drawing) of the cleaning head along the arc-shaped guide surface, and the shovel bar 1D can elastically scrape, wipe and shovel the solid and liquid garbage on the surface to be cleaned, so that the cleaning efficiency of the cleaning head is further improved. The arc-shaped guide surface and the outer circumferential surface of the cleaning roller form a gap, so that the passing performance of solid and liquid garbage in the gap is improved, the solid garbage with the diameter larger than the maximum distance of the gap can be directly blocked outside the cleaning head, and small-particle solid garbage can smoothly pass through the gap to reach the garbage box.

In a second aspect, the invention also discloses a water and dust circulation floor washer, which comprises the dead-angle-free cleaning head in the first aspect. The detailed structure of the dead-angle-free cleaning head according to the first aspect will not be described in detail here.

The core theory of operation of this application, when the cleaning head of no dead angle of floor washer operates, outer barrel 32 laminating is treated the surface roll floor washer self gravity oppression outer barrel 32 laminating is treated clean surface one side of surface and is hugged closely and take place deformation, deformation extension portion f can be to the outside extension of casing 1 this moment, with cover the clean surface of treating that casing 1 blockked, reach the clear effect of no dead angle, and because bellied reinforcing boss 1A2, joint reinforcing boss 1B2 is effectual has increased the effect that the both sides wall clamp cleaning roller 3 of casing 1, make the both sides wall of casing 1 can set up to thinner state, therefore outer barrel 32 is in when dodging the groove, while still being in compressed state, but compressed range is less, consequently, at the in-process that cleaning roller 3 rolls, friction between outer barrel 32 and the both sides wall of casing 1 is less, can effectively reduce the wearing and tearing of cleaning roller 3, noise and the energy consumption of floor washer cleaning head during operation have been reduced.

The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples have been provided herein to illustrate the principles and embodiments of the present application, and wherein the above examples are provided to assist in the understanding of the methods and concepts of the present application. Meanwhile, based on the ideas of the present application, those skilled in the art can make changes or modifications on the specific embodiments and application scope of the present application, which belong to the scope of the protection of the present application. In view of the foregoing, this description should not be construed as limiting the application.

Claims (19)

1. A dead-angle-free cleaning head for a water and dust circulation floor scrubber, comprising:

the shell is provided with two side walls, and an inner cavity is formed between the two side walls;

one end of the fixing component is detachably connected with one side wall of the shell;

the cleaning roller is sleeved on the fixing assembly and is arranged in the inner cavity, the outer ring of the fixing assembly is coupled with the inner ring of the cleaning roller, and the cleaning roller can rotate around one end of the fixing assembly;

the elastic abutting part of the cleaning roller and the surface to be cleaned extends to two ends beyond the outer walls of the two side walls.

2. The dead-angle-free cleaning head of claim 1, wherein the other end of the fixed assembly is not in contact with the other sidewall of the housing, and an outer ring of the other end of the fixed assembly is coupled to the inner ring of the cleaning roller.

3. The dead-angle-free cleaning head of claim 2, wherein the cleaning roller comprises:

an inner cylinder body, in which a coupling part for driving the cleaning roller to rotate is arranged;

the outer cylinder body is sleeved on the outer periphery of the inner cylinder body, and inner chamfers at two ends of the outer cylinder body extend out of two ends of the inner cylinder body respectively to form compression deformation parts.

4. A dead-angle-free cleaning head according to claim 3, wherein the outer annular side walls of the two ends of the outer cylinder are provided with deformation extensions in the areas where the two side walls of the outer cylinder extend to the lowest, so that the deformation extensions extend outwards of the two side walls when the outer cylinder is pressed.

5. The dead-angle-free cleaning head of claim 4, wherein the inner sides of the two side walls of the housing and the corresponding parts of the outer ring side walls are recessed away from the two end surfaces of the outer cylinder body to form avoiding grooves, so that friction between the compression deformation parts of the end parts of the outer cylinder body and the two side walls of the housing is reduced.

6. The dead-angle-free cleaning head of claim 5, wherein the securing assembly comprises a securing portion detachably connected to a side wall of the housing, the securing portion comprising:

the connecting end of the hinge seat is fixed on one side wall of the shell through a screw;

the hinge end is hinged with the hinge seat;

the hinge end is hinged with the hinge seat through the hinge pin.

7. The dead-angle-free cleaning head of claim 6, further comprising:

one end of the clamping assembly is clamped with the other side wall of the shell;

when the cleaning roller is installed in the shell, one end of the inner cylinder body is rotationally connected with the fixing part, the other end of the inner cylinder body is rotationally connected with the clamping assembly, the compression deformation part is just in the avoidance groove, and the compression deformation part is attached to two side walls of the shell.

8. The dead-angle-free cleaning head of claim 7, wherein the other end of the clamping assembly is detachably connected to the fixing portion, and the clamping assembly is integrally connected to the fixing assembly.

9. The dead-angle-free cleaning head of claim 7, wherein the other end of the clamping assembly is in interference fit with the inner wall of the inner barrel, and the clamping assembly is not in direct contact with the fixing assembly.

10. The dead-angle-free cleaning head according to claim 7, wherein a reinforcing protrusion is formed on a side wall of the housing corresponding to the fixing portion, the reinforcing protrusion is formed in a circular truncated cone shape, and a plurality of fixing holes for detachably connecting one end of the driving portion are formed in the top surface of the reinforcing protrusion.

11. The dead-angle-free cleaning head according to claim 7, wherein a truncated cone-shaped clamping reinforcing protrusion is arranged on a side wall of the shell corresponding to the clamping assembly, and a clamping groove for the clamping assembly to be clamped into is formed in the clamping reinforcing protrusion towards the top surface of the inner cavity of the shell.

12. The dead-angle-free cleaning head of claim 11, wherein the snap-in groove is a polygonal through groove through which the snap-in assembly can be directly pressed from outside the housing.

13. The dead-angle-free cleaning head of claim 8, wherein the securing assembly further comprises:

and one end of the motor is arranged on the fixed part, the other end of the motor is provided with an output shaft, the output shaft sleeve is provided with a coupler, the fixed assembly is an integral body formed by sequentially and detachably connecting the fixed part, the motor and the coupler, and the coupling part of the inner cylinder body is coupled with the coupler.

14. The dead-angle free cleaning head of claim 13, wherein the coupler is removably coupled to the clip assembly.

15. The dead-angle-free cleaning head of claim 9, wherein the securing assembly further comprises:

the motor, one end install in fixed part, the other end has the output shaft, the output axle sleeve is equipped with the shaft coupling, fixed subassembly is fixed part, motor, shaft coupling can dismantle in proper order and connect the whole that forms, the coupling part of inner tube body with the shaft coupling, fixed subassembly by the coupling part of inner tube body will the joint subassembly separates, during maintenance the joint subassembly can be followed the cleaning roller separates the joint subassembly.

16. The dead-angle free cleaning head of any of claims 2-15, further comprising:

The squeezing strip is arranged on the arc-shaped inner top wall of the inner cavity of the shell, which is elastically abutted with the cleaning roller, and is used for squeezing out sewage generated after the cleaning roller cleans the surface to be cleaned.

17. The dead-angle-free cleaning head of claim 13, further comprising:

the shovel strip is clamped on the bottom wall of the shell and positioned behind the cleaning roller, the shovel strip is arranged between the two side walls and provided with an arc-shaped guide surface facing the cleaning roller, and a gap is formed between the arc-shaped guide surface and the outer peripheral surface of the cleaning roller.

18. The dead-angle free cleaning head of any one of claims 2 to 15 wherein the outer cartridge is constructed of a flexible material that deforms when subjected to an external force.

19. A water and dust circulation floor scrubber comprising the dead-angle free cleaning head of any one of claims 1-18.