Lifting mechanism, floor brush assembly, cleaning equipment and control method

Abstract

The invention relates to the field of household appliance equipment, and discloses a lifting mechanism, a floor brush assembly, cleaning equipment and a control method. The lifting mechanism is simple in structure, easy to install and set, small in occupied setting space, beneficial to miniaturization design of the whole machine and optimization of the product appearance, good in connection reliability of all parts, not prone to damage and long in service life. The lifting mechanism comprises a pneumatic part, an air inlet assembly, an exhaust assembly and a reset assembly, the pneumatic part is arranged in a shell, and the pneumatic part is connected with a first scraping strip; the air inlet assembly is arranged in the shell, the air inlet assembly can controllably inflate the pneumatic part, and the pneumatic part drives the first scraping strip to descend relative to the shell after being inflated; the exhaust assembly is arranged in the shell and can controllably exhaust the pneumatic part; the reset assembly is arranged on the shell, and the reset assembly drives the first scraping strip to be lifted relative to the shell after the pneumatic part exhausts air.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a lifting mechanism, a floor brush assembly, a cleaning device and a control method. Background Art

[0002] A floor scrubber is a multifunctional cleaning device that combines sweeping, mopping and vacuuming, and can efficiently clean various floors. Floor scrubbers have the advantages of good cleaning effect, time saving and labor saving, and bring convenience to people's lives.

[0003] Usually, a floor scrubber mainly includes a body and a floor brush assembly. The top of the floor brush assembly is connected to the body. When cleaning the floor, the user holds the handle on the body to control the floor brush assembly to move forward and backward to achieve the cleaning process of the floor. This type of floor scrubber is provided with a rear scraper bar at the rear of the floor brush assembly. When the floor brush assembly is pushed forward, the rear scraper bar can scrape off the residual water on the floor. However, when the floor brush assembly is pulled backward, more water stains will remain on the floor, affecting the cleaning effect. Therefore, the prior art has a floor scrubber with a lifting front scraper bar in front of the floor brush assembly. When the floor brush assembly is pushed forward, the front scraper bar is lifted so as not to affect the cleaning process. When the floor brush assembly is pulled backward, the front scraper bar is lowered to scrape off the residual water stains on the floor. However, the lifting mechanism of this front scraper bar is very complicated, easy to wear and tear, resulting in functional failure, affecting the use, and occupies a large space, affecting the appearance of the whole machine. Summary of the invention

[0004] In view of this, the present invention provides a lifting mechanism, a floor brush assembly, a cleaning device and a control method to solve the problem that the lifting mechanism of the front scraper of the existing floor scrubber is complicated and occupies a large space.

[0005] In a first aspect, the present invention provides a lifting mechanism, which is applied to a floor brush assembly, wherein the floor brush assembly comprises a housing, a first scraper strip which can be lifted and moved is disposed at the bottom of the housing, and the lifting mechanism comprises:

[0006] A pneumatic member, disposed in the housing, the pneumatic member being connected to the first scraper strip;

[0007] An air intake assembly is disposed in the housing, and the air intake assembly can controllably inflate the pneumatic member, and after the pneumatic member is inflated, the first scraper strip is driven to descend relative to the housing;

[0008] An exhaust component, the exhaust component is disposed in the housing, and the exhaust component can controllably exhaust the pneumatic part;

[0009] A reset component is arranged on the shell, and after the pneumatic part is exhausted, the reset component drives the first scraper strip to be lifted relative to the shell.

[0010] Beneficial effect: The lifting mechanism of the present invention includes a pneumatic part, an air intake assembly, an exhaust assembly and a reset assembly. The lifting mechanism is a pneumatically controlled lifting mechanism. The pneumatic part is inflated by the air intake assembly to drive the first scraper to descend relative to the shell. The pneumatic part is exhausted by the exhaust assembly. After the pneumatic part is exhausted, the reset assembly can drive the first scraper to rise relative to the shell. This pneumatically controlled lifting mechanism has a relatively simple structure, is easy to install and set up, occupies a small setting space, is conducive to the miniaturization design of the whole machine and the optimization of the product appearance, and the connection reliability between the components is good, not easy to damage, and has a long service life, which can enhance the user experience.

[0011] In an optional embodiment, the pneumatic member is a flexible structure, and the pneumatic member is bent and arranged in the shell.

[0012] Beneficial effect: The lifting mechanism of the present invention has a flexible structure in which the pneumatic part can change its setting posture according to the setting space, has good setting adaptability, and can realize flexible layout of the pneumatic part. In particular, the internal space of the shell of the floor brush assembly is limited, and the pneumatic part is bent and arranged in the shell, which can realize full utilization of the space without significantly increasing the volume of the shell, and this setting method will not affect the operation of the pneumatic part and the lifting and lowering control of the first scraper strip.

[0013] In an optional embodiment, the floor brush assembly further includes a roller brush, and the pneumatic member is disposed along a portion of the circumference of the roller brush.

[0014] Beneficial effect: In the lifting mechanism of the present invention, the pneumatic parts are arranged along part of the circumference of the roller brush, so that the setting posture of the pneumatic parts is more in line with the shape of the roller brush, thereby further saving the setting space and making the product structure more compact.

[0015] In an optional embodiment, the first scraper strip is arranged on the front side of the roller brush.

[0016] Beneficial effect: In the lifting mechanism of the present invention, the first scraper bar is arranged on the front side of the roller brush, and the first scraper bar can be lifted or lowered relative to the shell under the control of the lifting mechanism, so that when the floor brush assembly mops the floor backwards, the first scraper bar descends relative to the shell, and the first scraper bar can abut the cleaning surface to scrape off residual water stains and improve the cleaning effect; when the floor brush assembly mops the floor forward, the first scraper bar is lifted relative to the shell and does not affect the cleaning operation.

[0017] In an optional embodiment, the air intake assembly includes an air intake control component and an air intake pipe, one end of the air intake pipe is connected to the air intake control component, and the other end of the air intake pipe is connected to the pneumatic component.

[0018] Beneficial effects: The lifting mechanism of the present invention, the air intake assembly includes an air intake control component and an air intake pipe. The air intake assembly is relatively simple in structure, easy to set up and install, and has good reliability and is not easy to damage, which is conducive to ensuring the service life of the lifting mechanism.

[0019] In an optional embodiment, the exhaust assembly includes an exhaust control component and an exhaust pipe, one end of the exhaust pipe is connected to the exhaust control component, and the other end of the exhaust pipe is connected to the pneumatic component.

[0020] Beneficial effects: The lifting mechanism of the present invention, the exhaust assembly includes an exhaust control component and an exhaust pipe. The exhaust assembly is relatively simple in structure, easy to set up and install, and has good reliability and is not easy to damage, which is beneficial to ensuring the service life of the lifting mechanism.

[0021] In an optional embodiment, the reset assembly includes a connecting member and an elastic member, the connecting member is passed through the bottom of the shell and can be lifted and lowered relative to the shell, the part of the connecting member placed inside the shell is sleeved with the elastic member, and this part abuts against the pneumatic member, one end of the elastic member abuts against the connecting member and the end of the pneumatic member, and the other end abuts against the shell, and the part of the connecting member placed outside the shell is connected to the first scraper strip.

[0022] Beneficial effects: The lifting mechanism of the present invention, the reset component includes a connecting piece and an elastic piece. The reset component has a relatively simple structure, is easy to set up and install, has good reliability, is not easy to damage, and is conducive to ensuring the service life of the lifting mechanism.

[0023] In an optional embodiment, a mounting groove is provided at the end of the connecting member connected to the first scraper strip, an end of the first scraper strip away from the cleaning surface is arranged in the mounting groove, and the mounting groove faces the top wall of the shell and can abut against the shell for limiting position.

[0024] Beneficial effects: The lifting mechanism of the present invention is provided with a mounting groove at the end of the connecting piece connected to the first scraper strip, and the end of the first scraper strip away from the cleaning surface is arranged in the mounting groove, which can improve the connection strength and reliability between the connecting piece and the first scraper strip, and when the first scraper strip is lifted relative to the shell, if the mounting groove abuts against the shell toward the top wall of the shell, the connecting piece and the first scraper strip are limited and cannot continue to be lifted. At this time, the first scraper strip is lifted into place, which improves the reliability of the structure.

[0025] In an optional embodiment, the pneumatic member is extended along the length direction of the roller brush, and at least two connecting members are provided, and at least two connecting members are spaced apart along the extension direction of the pneumatic member.

[0026] Beneficial effect: The lifting mechanism of the present invention has a first scraper strip that is a long scraper strip extending along the length direction of the roller brush to scrape off water remaining on the ground from the roller. The pneumatic part is also extended along the length direction of the roller brush, and at least two connecting parts are spaced apart along the extension direction of the pneumatic part, so that the pneumatic part can apply force to each connecting part evenly, thereby driving the first scraper strip to move downward evenly and stably, thereby improving the stability and reliability of the structure.

[0027] In a second aspect, the present invention further provides a floor brush assembly, comprising a shell, a roller brush and a lifting mechanism as described above, wherein a first scraper strip that can be lifted and lowered is disposed at the bottom of the shell, and the lifting mechanism drives the first scraper strip to be lifted and lowered relative to the shell.

[0028] Because the floor brush assembly of the present invention, including the lifting mechanism of the present invention, has the same beneficial effects as the lifting mechanism, it will not be described in detail here.

[0029] In a third aspect, the present invention further provides a cleaning device, comprising a body and the lifting mechanism as described above or comprising a floor brush assembly as described above, wherein the body is connected to the floor brush assembly.

[0030] Because the cleaning device of the present invention, including the lifting mechanism of the present invention, has the same beneficial effects as the lifting mechanism, it will not be described in detail here.

[0031] In an optional embodiment, the cleaning device is a floor scrubber or a floor mopping machine.

[0032] In a fourth aspect, the present invention further provides a control method for controlling the above-mentioned cleaning device, the control method comprising:

[0033] When the floor brush assembly mops the floor backward, the pneumatic part of the lifting mechanism is inflated, and drives the first scraper bar to descend relative to the housing, and the elastic part is compressed until the first scraper bar abuts against the cleaning surface;

[0034] When the floor brush assembly mops the floor forward, the pneumatic member exhausts air, and the elastic member returns to its original position, driving the first scraping bar to rise relative to the housing until the first scraping bar leaves the cleaning surface.

[0035] Since the control method of the present invention is used to control the above-mentioned cleaning device and has the same beneficial effects as the cleaning device, it will not be described in detail here.

[0036] In an optional embodiment, when the floor brush assembly mops the floor backward, the pneumatic part of the lifting mechanism is inflated and drives the first scraper bar to descend relative to the shell, and the elastic part is compressed until the first scraper bar abuts the cleaning surface, the step includes:

[0037] The air intake control component is started and the exhaust control component is closed. The air intake control component inflates the pneumatic component through the air intake pipe, the volume of the pneumatic component increases, and the elastic component is compressed, driving the first scraper bar to descend relative to the shell until the first scraper bar abuts the cleaning surface.

[0038] Beneficial effect: According to the control method of the present invention, when the floor brush assembly mops the floor backwards, the air intake control component is started and the exhaust control component is closed to realize the inflation process of the pneumatic part. As the inflation process proceeds, the volume of the pneumatic part increases and the elastic part is compressed, driving the first scraper bar to descend relative to the shell until the first scraper bar abuts the cleaning surface, so that the first scraper bar can scrape off the remaining water stains on the ground, thereby improving the cleaning effect. Moreover, the above-mentioned process of controlling the descent of the first scraper bar is relatively simple, easy to implement and reliable.

[0039] In an optional embodiment, when the floor brush assembly mops the floor forward, the pneumatic member exhausts air, the elastic member resets, and the first scraper bar is driven to rise relative to the housing until the first scraper bar leaves the cleaning surface, comprising:

[0040] The air intake control component is closed and the exhaust control component is started, the gas in the pneumatic component is discharged through the exhaust pipe and the exhaust control component, the volume of the pneumatic component is reduced, and the elastic component is reset, driving the first scraper to rise relative to the shell until the first scraper leaves the cleaning surface.

[0041] Beneficial effect: According to the control method of the present invention, when the floor brush assembly is mopping the floor forward, the air intake control component is closed and the exhaust control component is started to realize the exhaust process of the pneumatic part. As the exhaust process proceeds, the volume of the pneumatic part is reduced and the elastic part is reset, driving the first scraper bar to rise relative to the shell until the first scraper bar leaves the cleaning surface, thereby realizing the cleaning process of the floor by the floor brush assembly. Moreover, the above-mentioned process of controlling the lifting of the first scraper bar is relatively simple, easy to realize and has good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is an overall schematic diagram of the floor brush assembly of the present invention;

[0044] Figure 2 It is a side cross-sectional view of the floor brush assembly of the present invention (the first scraper strip is raised);

[0045] Figure 3It is a side sectional view of the floor brush assembly of the present invention (the first scraper strip is lowered);

[0046] Figure 4 is a basic flow chart of the control method of the present invention;

[0047] Figure 5 A detailed logic diagram of the floor brush assembly mopping the floor backwards in the control method of the present invention;

[0048] Figure 6 It is a detailed logic diagram of the floor brush assembly mopping the floor forward in the control method of the present invention.

[0049] Description of reference numerals:

[0050] 1. Shell; 2. First scraper; 3. Pneumatic part; 4. Roller brush; 5. Exhaust control part; 6. Exhaust pipe; 7. Intake control part; 8. Intake pipe; 9. Connecting part; 901, Mounting groove; 10. Elastic part; 11. Second scraper; 12. Rear wheel; 13. Connecting column. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0052] Combine the following Figure 1-Figure 6 , describing embodiments of the lifting mechanism, floor brush assembly, cleaning device and control method of the present invention.

[0053] According to an embodiment of the present invention, a lifting mechanism is provided, which is applied to a floor brush assembly. The floor brush assembly includes a shell 1, and a first scraper 2 that can be lifted and lowered is arranged at the bottom of the shell 1. The lifting mechanism includes: a pneumatic part 3, an air intake assembly, an exhaust assembly and a reset assembly. The pneumatic part 3 is arranged in the shell 1, and the pneumatic part 3 is connected to the first scraper 2; the air intake assembly is arranged in the shell 1, and the air intake assembly can controllably inflate the pneumatic part 3, and the pneumatic part 3 drives the first scraper 2 to descend relative to the shell 1 after being inflated; the exhaust assembly is arranged in the shell 1, and the exhaust assembly can controllably exhaust the pneumatic part 3; the reset assembly is arranged in the shell 1, and the reset assembly drives the first scraper 2 to rise relative to the shell 1 after the pneumatic part 3 is exhausted.

[0054] This lifting mechanism is a pneumatically controlled lifting mechanism. The pneumatic part 3 is inflated by the air intake assembly to drive the first scraper 2 to descend relative to the housing 1. The pneumatic part 3 is exhausted by the exhaust assembly. After the pneumatic part 3 is exhausted, the reset assembly can drive the first scraper 2 to rise relative to the housing 1. This pneumatically controlled lifting mechanism has a relatively simple structure, is easy to install and set up, occupies a small setting space, is conducive to the miniaturization design of the whole machine and the optimization of the product appearance, and the connection reliability between the components is good, not easy to damage, and has a long service life, which can improve the user experience.

[0055] The floor brush assembly can be applied to cleaning equipment, such as floor scrubbers, floor mops, etc. The floor brush assembly is used to clean the surface to be cleaned (such as the ground, the floor, etc.). The floor brush assembly includes a housing 1, which is a bearing structure of the floor brush assembly and has a certain structural strength. The interior of the housing 1 has a setting space, and other related structures of the floor brush assembly can be set on the housing 1.

[0056] A first scraper bar 2 is provided at the bottom of the housing 1. Under the control of the lifting mechanism, the first scraper bar 2 can be lifted and lowered relative to the housing 1. When the first scraper bar 2 contacts the cleaning surface, it can scrape off residual water stains and improve the cleaning effect. Figure 1 As shown, the first scraper strip 2 has a certain length to ensure the effect of scraping off residual water stains. In this embodiment, the first scraper strip 2 is a long scraper strip, the length direction of the first scraper strip 2 is consistent with the width direction of the shell 1, and the length of the first scraper strip 2 is close to the width of the shell 1.

[0057] The lifting mechanism includes a pneumatic part 3 , an air intake assembly, an exhaust assembly and a reset assembly. The lifting mechanism can control the first scraper strip 2 to move up and down relative to the housing 1 .

[0058] Among them, the pneumatic part 3 is arranged in the shell 1, the pneumatic part 3 is connected to the first scraper 2, and the pneumatic part 3 can be controlled by gas. By inflating and exhausting the pneumatic part 3, the pneumatic part 3 cooperates with the reset component to realize the lifting and lowering movement of the first scraper 2 relative to the shell 1.

[0059] The air intake assembly is arranged in the shell 1, and the air intake assembly can inflate the pneumatic part 3 under control, that is, the air intake assembly inflates the pneumatic part 3 when necessary (for example, when the floor brush assembly mops the floor backwards), and after the pneumatic part 3 is inflated, it can drive the first scraper 2 to descend relative to the shell 1.

[0060] The exhaust component is arranged in the shell 1, and the exhaust component can exhaust the pneumatic part 3 under control, that is, the exhaust component exhausts the pneumatic part 3 when necessary (for example, when the floor brush assembly mops the floor forward). After the pneumatic part 3 is exhausted, the reset component can drive the first scraper 2 to lift relative to the shell 1.

[0061] Furthermore, the pneumatic component 3 is a flexible structure, and the pneumatic component 3 is bent and arranged in the housing 1 .

[0062] In this embodiment, the pneumatic member 3 is a flexible structure made of a flexible material, specifically, the pneumatic member 3 is an airbag, and its material can be rubber, etc. When the airbag is inflated, its volume will increase, and when the airbag is deflated, its volume will decrease.

[0063] Since the pneumatic part 3 is a flexible structure, it can be bent and deformed arbitrarily according to the installation space to adapt to different installation spaces, as long as the installation space can meet the installation needs after the volume of the pneumatic part 3 is increased. In this embodiment, the pneumatic part 3 is bent and arranged in the housing 1. This arrangement method ensures that the pneumatic part 3 does not significantly increase the size of the housing 1, making the structure of the housing 1 compact.

[0064] Furthermore, the floor brush assembly also includes a roller brush 4 , and the pneumatic part 3 is arranged along a portion of the circumference of the roller brush 4 .

[0065] The floor brush assembly also includes a roller brush 4, which is rotatably arranged at the bottom of the shell 1. The pneumatic part 3 is arranged along a portion of the circumference of the roller brush 4, so that the setting shape of the pneumatic part 3 is more closely fitted to the roller brush 4, thereby further saving setting space and making the product structure more compact.

[0066] like Figure 2 and Figure 3 As shown, the direction indicated by arrow a is forward, and the direction indicated by arrow b is backward. The floor brush assembly moves in direction a to mop the floor forward, and moves in direction b to mop the floor backward. In this embodiment, the first scraper bar 2 is arranged at the front side of the roller brush 4. When the floor brush assembly mops the floor backward, the first scraper bar 2 can scrape off the water stains remaining on the floor, thereby improving the cleaning effect.

[0067] At the front side of the roller brush 1, the housing 1 has an extension structure, and the interior of the extension structure has a cavity. Figure 2 and Figure 3 From the perspective of the embodiment, the extension structure is arranged along part of the circumference of the roller brush 4, that is, the cross-sectional shape of the extension structure perpendicular to the length direction of the roller brush 4 is an arc-shaped structure, so that the structure of the housing 1 is more compact. The pneumatic part 3 is arranged in the extension structure, and since the pneumatic part 3 is a flexible structure, the pneumatic part 3 can change the arrangement form according to the arrangement space. Therefore, in this embodiment, after the pneumatic part 3 is arranged in the extension structure, the pneumatic part 3 is arranged along part of the circumference of the roller brush 4, and the cross-sectional shape of the pneumatic part 3 perpendicular to the length direction of the roller brush 4 is also an arc-shaped structure.

[0068] In addition, the first scraper strip 2 has a certain length in the width direction of the housing 1, that is, the first scraper strip 2 has a certain length in the length direction of the roller brush 4. Optionally, the size of the pneumatic part 3 in the length direction of the roller brush 4 matches the length of the first scraper strip 2 (can be equal, or slightly longer, or slightly shorter), so that the pneumatic part 3 can apply a more balanced force to the first scraper strip 2 after being inflated, so as to better control the descent of the first scraper strip 2. In other words, after the pneumatic part 3 is set in the extension structure, the overall structural form of the pneumatic part 3 is similar to the side wall of the columnar part.

[0069] Furthermore, the air intake assembly includes an air intake control component 7 and an air intake pipe 8 , one end of the air intake pipe 8 is connected to the air intake control component 7 , and the other end of the air intake pipe 8 is connected to the pneumatic component 3 .

[0070] The air intake assembly is arranged in the setting space of the housing 1, and the air intake assembly includes an air intake control member 7 and an air intake pipe 8, one end of the air intake pipe 8 is connected to the air intake control member 7, and the other end is connected to the pneumatic member 3. It can be understood that in order to ensure air tightness, the above connections are all sealed connections to prevent air leakage.

[0071] In this embodiment, the air intake control component 7 is an air pump, and the air intake pipe 8 is a flexible pipe, so that the air intake pipe 8 can be arranged in the setting space of the housing 1, which is convenient for structural layout. The air pump can deliver gas to the inside of the pneumatic part 3 through the air intake pipe 8 to inflate the pneumatic part 3. During the inflation process, the volume of the pneumatic part 3 will increase. Due to the limitation of the cavity wall in the extension structure of the housing 1, the pneumatic part 3 with increased volume can only be extended along the shape of the cavity in the extension space.

[0072] Furthermore, the exhaust assembly includes an exhaust control component 5 and an exhaust pipe 6 , one end of the exhaust pipe 6 is connected to the exhaust control component 5 , and the other end of the exhaust pipe 6 is connected to the pneumatic component 3 .

[0073] The exhaust assembly is arranged in the setting space of the housing 1, and the exhaust assembly includes an exhaust control component 5 and an exhaust pipe 6, one end of the exhaust pipe 6 is connected to the exhaust control component 5, and the other end is connected to the pneumatic component 3. It can be understood that in order to ensure air tightness, the above connections are all sealed connections to prevent the occurrence of air leakage.

[0074] In this embodiment, the exhaust control component 5 is an exhaust valve, and the exhaust pipe 6 is a flexible pipe, so that the exhaust pipe 6 can be arranged in the setting space of the housing 1, which is convenient for structural layout. The exhaust valve can discharge the gas inside the pneumatic part 3 through the exhaust pipe 6 and the gas outlet of the exhaust valve to achieve exhaust of the pneumatic part 3. During the exhaust process, the volume of the pneumatic part 3 will shrink. When the gas in the pneumatic part 3 is completely emptied, the pneumatic part 3 will return to its original shape.

[0075] Furthermore, the reset assembly includes a connecting member 9 and an elastic member 10. The connecting member 9 is inserted into the bottom of the shell 1 and can be lifted and lowered relative to the shell 1. The part of the connecting member 9 placed inside the shell 1 is sleeved with the elastic member 10, and this part abuts against the pneumatic member 3. One end of the elastic member 10 abuts against the end of the pneumatic member 3 that is abutted by the connecting member 9, and the other end abuts against the shell 1. The part of the connecting member 9 placed outside the shell 1 is connected to the first scraper strip 2.

[0076] like Figure 2 and Figure 3 As shown, the reset component is arranged on the shell 1, and the reset component includes a connecting member 9 and an elastic member 10. The connecting member 9 is similar to a rod-shaped structure as a whole. Since the first scraper strip 2 is arranged at the bottom of the shell 1, the connecting member 9 is arranged at the bottom of the shell 1, that is, the length direction of the connecting member 9 is perpendicular to the surface to be cleaned. In this embodiment, the length direction of the connecting member 9 is perpendicular to the ground.

[0077] The connecting member 9 is disposed at the bottom of the housing 1, that is, a part of the structure of the connecting member 9 is located inside the housing 1, and the other part of the structure is located outside the housing 1. In this embodiment, the upper part of the connecting member 9 is located inside the housing 1, and the lower part is located outside the housing 1. The part of the connecting member 9 placed inside the housing 1 is sleeved with an elastic member 10, and the part of the connecting member 9 placed inside the housing 1 abuts against the pneumatic member 3. Specifically, the part of the connecting member 9 placed inside the housing 1 (that is, the upper end of the connecting member 9) abuts against the lower part of the pneumatic member 3. The end of the part of the connecting member 9 placed inside the housing 1 (that is, the upper end of the connecting member 9) has a step structure, so that one end of the elastic member 10 abuts against the end of the connecting member 9 abutting against the pneumatic member 3, and the other end abuts against the housing 1. Specifically, the upper end of the elastic member 10 abuts against the upper end of the connecting member 9, and the lower end abuts against the bottom wall inside the housing 1. The part of the connecting member 9 placed outside the housing 1 is connected to the first scraper strip 2.

[0078] When the pneumatic part 3 is inflated, its volume increases. Due to the limitation of the internal cavity structure of the extension space, the pneumatic part 3 can only extend along the structural form of the internal cavity of the extension space. Figure 2 and Figure 3 For example, when the pneumatic part 3 is inflated and its volume increases, the position where the pneumatic part 3 abuts the connecting part 9 will move downward, thereby driving the connecting part 9 and the first scraper 2 to move downward, and at the same time, the elastic part 10 is compressed to achieve the descent of the first scraper 2. When the pneumatic part 3 is exhausted and its volume shrinks, the position where the pneumatic part 3 abuts the connecting part 9 will move upward, and at the same time, the elastic part 10 is reset, thereby driving the connecting part 9 and the first scraper 2 to move upward under the action of the restoring force of the elastic part 10, thereby achieving the lifting of the first scraper 2.

[0079] The elastic member 10 is a spring.

[0080] Furthermore, a mounting groove 901 is provided at the end of the connecting member 9 connected to the first scraper strip 2, and the end of the first scraper strip 2 away from the cleaning surface is arranged in the mounting groove 901, and the mounting groove 801 facing the top wall of the shell 1 can abut against the shell 1 for limiting position.

[0081] In this embodiment, the lower end of the connecting member 9 is provided with a mounting groove 901, and the mounting groove 901 is recessed inward from the lower end surface of the connecting member 9. The first scraper 2 is installed in the mounting groove 901 to increase the installation strength of the first scraper 2. The first scraper 2 can be fixed in the mounting groove 901, or can be detachably arranged in the mounting groove 901, as long as it can ensure that the first scraper 2 is reliably positioned and will not be arbitrarily displaced during lifting, movement and operation.

[0082] Furthermore, the pneumatic member 3 is extended along the length direction of the roller brush 4 , and at least two connecting members 9 are provided, and the at least two connecting members 9 are spaced apart along the extension direction of the pneumatic member 3 .

[0083] Since the pneumatic part 3 extends a certain length along the length direction of the roller brush 4 to match the length of the first scraper strip 2, in order to achieve balanced force on the pneumatic part 3 and ensure the reliability of the lifting mechanism, at least two, such as two, three, four, etc., connecting members 9 are provided. The specific number of connecting members 9 is set according to the length dimension of the pneumatic part 3 along the length direction of the roller brush 4. At least two connecting members 9 are spaced apart along the extension direction of the pneumatic part 3 to achieve balanced force on the pneumatic part 3.

[0084] In other embodiments, the connecting member 9 may also be a plate-like structure having a certain length along the length direction of the roller brush 4. In this case, the mounting groove 901 at the bottom of the connecting member 9 is a long groove along the length direction of the roller brush 4. One end of the mounting groove 901 may be set as an opening, and the first scraper strip 2 may be inserted into or pulled out of the mounting groove 901 through the opening to realize the replacement of the first scraper strip 2.

[0085] This embodiment also provides a floor brush assembly, including a shell 1, a roller brush 4 and the lifting mechanism as described above. A first scraper strip 2 that can be lifted and lowered is provided at the bottom of the shell 1, and the lifting mechanism drives the first scraper strip 2 to lift and lower relative to the shell 1.

[0086] The floor brush assembly is applied to cleaning equipment, and the floor brush assembly is used to clean the surface to be cleaned (such as the ground, the floor, etc.). Since a first scraper bar 2 that can be raised and lowered is provided at the bottom of the shell 1, the air intake assembly inflates the pneumatic part 3 when necessary (for example, when the floor brush assembly is mopping the floor backwards), and after the pneumatic part 3 is inflated, it can drive the first scraper bar 2 to descend relative to the shell 1 to scrape off the residual water stains and improve the cleaning effect. The exhaust assembly exhausts the pneumatic part 3 when necessary (for example, when the floor brush assembly is mopping the floor forwards), and after the pneumatic part 3 is exhausted, the reset assembly can drive the first scraper bar 2 to rise relative to the shell 1 so that the first scraper bar 2 does not interfere with the cleaning process.

[0087] In this embodiment, the first scraper bar 2 is arranged at the front side of the roller brush 4. When the floor brush assembly mops the floor backward, the first scraper bar 2 descends and scrapes away the residual water stains on the floor. A second scraper bar 11 is also arranged at the rear side of the roller brush 4. When the floor brush assembly mops the floor forward, the second scraper bar 11 can scrape away the residual water stains on the floor. In this embodiment, in order to simplify the structure of the floor brush assembly, the second scraper bar 11 is a fixed scraper bar.

[0088] In other embodiments, the lifting mechanism of this embodiment may be adopted so that the second scraper strip 11 is also a liftable scraper strip.

[0089] A rear wheel 12 is provided at the rear of the housing 1, and the rear wheel 12 is a driving wheel to assist in driving the floor brush assembly to move, reduce the required hand thrust, and make the cleaning operation more labor-saving. A connecting column 13 is provided at the top of the housing 1 to achieve connection with the cleaning device body.

[0090] Of course, the floor brush assembly of this embodiment also includes other structures and components that existing floor brush assemblies have, which will not be described in detail here.

[0091] This embodiment also provides a cleaning device, including a body and the lifting mechanism as described above or the floor brush assembly as described above, wherein the body is connected to the floor brush assembly.

[0092] This cleaning device can inflate the pneumatic part 3 through the air intake assembly, which can drive the first scraper 2 to descend relative to the housing 1, and exhaust the pneumatic part 3 through the exhaust assembly. After the pneumatic part 3 is exhausted, the reset assembly can drive the first scraper 2 to rise relative to the housing 1. This pneumatically controlled lifting mechanism has a relatively simple structure, is easy to install and set, occupies a small setting space, and is conducive to the miniaturization design of the whole machine and the optimization of the product appearance.

[0093] The cleaning device may be a floor scrubber or a floor mop. In this embodiment, the cleaning device is a floor scrubber. A handle is provided on the body, and the user can push and pull the handle to clean the floor. The bottom of the body is connected to the floor brush assembly, specifically, the bottom of the body is connected to the connecting column 13 at the top of the floor brush assembly housing 1.

[0094] The cleaning device of this embodiment also has a control system, which is electrically connected to the rear wheel 12 of the floor brush assembly, the air intake control component 7 and the exhaust control component 5, etc., to control the operation of the cleaning device.

[0095] The cleaning device is operated by manual dragging. When the brush assembly mops the floor forward, the rear wheel 12 rotates forward, and when the brush assembly mops the floor backward, the rear wheel 12 moves backward. The control system can control the power on or off of the air intake control element 7 and the exhaust control element 5 according to the electrical signals sent forward and backward by the rear wheel 12.

[0096] Specifically, when the floor brush assembly mops the floor forward, the rear wheel rotates forward, the air intake control component 7 is powered off, and the exhaust control component 5 is powered on; when the floor brush assembly mops the floor backward, the rear wheel rotates backward, the air intake control component 7 is powered on, and the exhaust control component 5 is powered off.

[0097] Of course, the cleaning device of this embodiment also has other structures and components that existing cleaning devices have, which will not be described in detail here.

[0098] like Figure 4 As shown, this embodiment also provides a control method for controlling a cleaning device, the control method comprising:

[0099] When the floor brush assembly mops the floor backward, the pneumatic member 3 of the lifting mechanism is inflated, and drives the first scraper bar 2 to descend relative to the housing 1, and the elastic member 10 is compressed until the first scraper bar 2 abuts against the cleaning surface;

[0100] When the floor brush assembly mops the floor forward, the pneumatic member 3 exhausts air, and the elastic member 10 returns to its original position, driving the first scraping strip 2 to rise relative to the housing 1 until the first scraping strip 2 leaves the cleaning surface.

[0101] By means of the above control method, the lifting and lowering control of the first scraper strip 2 can be easily realized, and the control logic is simple and the reliability is high.

[0102] Furthermore, when the floor brush assembly mops the floor backwards, the pneumatic part 3 of the lifting mechanism is inflated and drives the first scraper 2 to descend relative to the shell 1, and the elastic part 10 is compressed until the first scraper 2 abuts the cleaning surface. The steps include: the air intake control part 7 is started, the exhaust control part 5 is closed, the air intake control part 7 inflates the pneumatic part 3 through the air intake pipe 8, the volume of the pneumatic part 3 increases, the elastic part 10 is compressed, and the first scraper 2 is driven to descend relative to the shell 1 until the first scraper 2 abuts the cleaning surface.

[0103] Furthermore, when the floor brush assembly mops the floor forward, the pneumatic part 3 is exhausted, the elastic part 10 is reset, and the first scraper 2 is lifted relative to the shell 1 until the first scraper 2 leaves the cleaning surface. The steps include: the air intake control part 7 is closed, the exhaust control part 5 is started, the gas in the pneumatic part 3 is discharged through the exhaust pipe 6 and the exhaust control part 5, the volume of the pneumatic part 3 is reduced, and the elastic part 10 is reset, driving the first scraper 2 to be lifted relative to the shell 1 until the first scraper 2 leaves the cleaning surface.

[0104] like Figure 5-Figure 6 As shown, the control method of this embodiment is described in detail below in conjunction with the accompanying drawings:

[0105] When the cleaning device is manually operated, when the floor brush assembly mops the floor backwards, the rear wheel 12 rotates backwards, and the control system obtains the electrical signal sent by the rear wheel 12, controls the air intake control component 7 to be powered on and started, controls the exhaust control component 5 to be powered off and closed, and inflates the pneumatic component 3. The volume of the pneumatic component 3 increases, and the pneumatic component 3 presses the connecting component 9 downward, so that the elastic component 10 is compressed. At the same time, the connecting component 9 drives the first scraper 2 to descend relative to the shell 1 until the first scraper 2 abuts the cleaning surface, that is, the ground, so that when the floor brush assembly mops the floor backwards, the first scraper 2 scrapes off the residual water stains to improve the cleaning effect.

[0106] When the cleaning device is manually operated, when the floor brush assembly moves forward to mop the floor, the rear wheel 12 rotates forward, the control system obtains the electrical signal from the rear wheel 12, controls the air intake control component 7 to be powered off and closed, controls the exhaust control component 5 to be powered on and started, the pneumatic component 3 exhausts air, the volume of the pneumatic component 3 is reduced, the pneumatic component 3 gradually returns to the initial position (returns to the initial state), no longer compresses the connecting component 9, the elastic component 10 is reset, and drives the connecting component 9 and the first scraper 2 to rise relative to the housing 1, until the first scraper 2 leaves the cleaning surface, that is, the floor. At this time, the second scraper 11 scrapes off the residual water stains on the floor to improve the cleaning effect.

[0107] In other embodiments, the pneumatic part 3 may also be a hard structure (such as a pneumatic rod). When the pneumatic part 3 is inflated, the pneumatic rod moves downward, driving the first scraper 2 to descend relative to the shell 1. When the pneumatic part 3 is exhausted, the pneumatic rod moves upward, and under the action of the reset component, drives the first scraper 2 to rise relative to the shell 1.

[0108] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A lifting mechanism, characterized in that: Applicable to a floor brush assembly, the floor brush assembly comprises a housing (1), a first scraper strip (2) which is movable in a lifting manner is arranged at the bottom of the housing (1), and the lifting mechanism comprises: A pneumatic component (3) is arranged in the housing (1), and the pneumatic component (3) is connected to the first scraper strip (2); An air intake assembly is arranged in the housing (1), and the air intake assembly can controllably inflate the pneumatic part (3), and after the pneumatic part (3) is inflated, it drives the first scraper (2) to descend relative to the housing (1); An exhaust component, the exhaust component being arranged in the housing (1), and the exhaust component being controllably capable of exhausting the pneumatic part (3); A reset component is arranged on the housing (1), and after the pneumatic part (3) is exhausted, the reset component drives the first scraper (2) to be lifted relative to the housing (1).

2. The lifting mechanism according to claim 1, characterized in that: The pneumatic part (3) is a flexible structure, and the pneumatic part (3) is bent and arranged in the housing (1).

3. The lifting mechanism according to claim 2, characterized in that: The floor brush assembly also includes a roller brush (4), and the pneumatic part (3) is arranged along a portion of the circumference of the roller brush (4).

4. The lifting mechanism according to claim 3, characterized in that: The first scraper strip (2) is arranged on the front side of the roller brush (4).

5. The lifting mechanism according to claim 1, characterized in that: The air intake assembly comprises an air intake control component (7) and an air intake pipe (8); one end of the air intake pipe (8) is connected to the air intake control component (7), and the other end is connected to the pneumatic component (3).

6. The lifting mechanism according to claim 1, characterized in that: The exhaust component comprises an exhaust control component (5) and an exhaust pipe (6); one end of the exhaust pipe (6) is connected to the exhaust control component (5), and the other end is connected to the pneumatic component (3).

7. The lifting mechanism according to any one of claims 1 to 6, characterized in that: The reset assembly comprises a connecting member (9) and an elastic member (10); the connecting member (9) is disposed on the bottom of the housing (1) and can be lifted and lowered relative to the housing (1); the portion of the connecting member (9) disposed inside the housing (1) is sleeved with the elastic member (10), and the portion is in contact with the pneumatic member (3); one end of the elastic member (10) is in contact with the end of the connecting member (9) contacting the pneumatic member (3), and the other end is in contact with the housing (1); the portion of the connecting member (9) disposed outside the housing (1) is connected to the first scraper strip (2).

8. The lifting mechanism according to claim 7, characterized in that: The end of the connecting member (9) connected to the first scraper (2) is provided with a mounting groove (901); the end of the first scraper (2) away from the cleaning surface is arranged in the mounting groove (901); and the mounting groove (801) faces the top wall of the shell (1) and can abut against the shell (1) for limiting position.

9. The lifting mechanism according to claim 7, characterized in that: The pneumatic part (3) is extended along the length direction of the roller brush (4), and at least two connecting parts (9) are provided, and at least two connecting parts (9) are arranged at intervals along the extension direction of the pneumatic part (3).

10. A floor brush assembly, characterized in that: It comprises a shell (1), a roller brush (4) and a lifting mechanism as claimed in any one of claims 1 to 9, wherein a first scraper strip (2) which can be lifted and lowered is arranged at the bottom of the shell (1), and the lifting mechanism drives the first scraper strip (2) to be lifted and lowered relative to the shell (1).

11. A cleaning device, characterized in that: It comprises a body and the lifting mechanism as described in any one of claims 1 to 9 or comprises the floor brush assembly as described in claim 10, and the body is connected to the floor brush assembly.

12. The cleaning device according to claim 11, characterized in that The cleaning device is a floor scrubber or a floor mopping machine.

13. A control method, characterized in that: Used to control the cleaning device according to claim 11 or 12, the control method comprises: When the floor brush assembly mops the floor backwards, the pneumatic part (3) of the lifting mechanism is inflated and drives the first scraping strip (2) to descend relative to the housing (1), and the elastic part (10) is compressed until the first scraping strip (2) abuts against the cleaning surface; When the floor brush assembly mops the floor forward, the pneumatic part (3) exhausts air, and the elastic part (10) resets, driving the first scraping strip (2) to rise relative to the housing (1) until the first scraping strip (2) leaves the cleaning surface.

14. The control method according to claim 13, characterized in that: When the floor brush assembly mops the floor backwards, the pneumatic part (3) of the lifting mechanism is inflated and drives the first scraping strip (2) to descend relative to the housing (1), and the elastic part (10) is compressed until the first scraping strip (2) abuts against the cleaning surface, comprising: The air intake control component (7) is started and the air exhaust control component (5) is closed. The air intake control component (7) inflates the pneumatic component (3) through the air intake pipe (8), the volume of the pneumatic component (3) increases, and the elastic component (10) is compressed, driving the first scraper (2) to descend relative to the housing (1) until the first scraper (2) abuts against the cleaning surface.

15. The control method according to claim 13 or 14, characterized in that: When the floor brush assembly mops the floor forward, the pneumatic part (3) exhausts air, the elastic part (10) resets, and drives the first scraping bar (2) to rise relative to the housing (1), until the first scraping bar (2) leaves the cleaning surface, the step comprising: The air intake control component (7) is closed and the exhaust control component (5) is started, the gas in the pneumatic component (3) is discharged through the exhaust pipe (6) and the exhaust control component (5), the volume of the pneumatic component (3) is reduced, and the elastic component (10) is reset, driving the first scraper (2) to rise relative to the shell (1) until the first scraper (2) leaves the cleaning surface.

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