A lifting and lowering rotating mop structure and cleaning machine

Abstract

The invention discloses a revolving mop structure that can be raised and lowered, comprising a mop unit, wherein the mop unit comprises a mop, a turntable and a rotating shaft, wherein the mop is connected to the turntable, the rotating shaft is connected to the turntable, the rotating shaft is used to raise and lower the turntable, and is also used to drive the turntable to rotate, the rotating shaft comprises an inner shaft and an outer shaft, the inner shaft is sleeved with the outer shaft, and a limiting structure is provided between the inner shaft and the outer shaft, which can enable the inner shaft and the outer shaft to move relative to each other in the axial direction but be limited in the circumferential direction; the rotation of the outer shaft drives the inner shaft to rotate synchronously via the limiting structure, the inner shaft is connected to the turntable, and the inner shaft is used to drive the turntable to be raised and lowered and rotated together, or the rotation of the inner shaft drives the outer shaft to rotate synchronously via the limiting structure, the outer shaft is connected to the turntable, and the outer shaft is used to drive the turntable to be raised and lowered and rotated together, which is conducive to directly raising and lowering the mop, and in addition overcomes the problem of heavy weight of the lifting part; a cleaning machine is also provided, which adopts the revolving mop structure that can be raised and lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a liftable rotating mop structure and a cleaning machine. Background Art

[0002] There is a cleaning machine which has important market value because it can realize functions such as automatic rotary mopping, but the rotating mop units in the current cleaning machines are usually lifted as a whole, that is, the frame or shell on which the mop units are installed is lifted as a whole, and the frame or shell needs to be installed with various driving mechanisms, which are used to drive the mop units to rotate and clean, that is, the mop units are lifted indirectly, which results in a heavier overall weight. The applicant has found through research that the technical route of overall lifting causes the center of gravity to change easily, which has an adverse effect on the stable operation of the cleaning machine. Therefore, in the design, production and manufacturing processes, special attention should be paid to the center of gravity matching problem under different lifting conditions. Not only is the structure complex, but the design, production and manufacturing are also cumbersome and the cost is relatively high. Summary of the invention

[0003] In view of the above problems existing in the prior art, a liftable rotary mop structure is proposed, which is conducive to directly lifting the mop and overcomes the problem of heavy weight of the lifting part. A cleaning machine is also proposed, which adopts the above liftable rotary mop structure.

[0004] The specific technical solutions are as follows:

[0005] A liftable rotary mop structure comprises a mop unit, the mop unit comprises a mop, a turntable and a rotating shaft, the mop is connected to the turntable, the rotating shaft is connected to the turntable, the rotating shaft is used to lift the turntable and also used to drive the turntable to rotate, the rotating shaft comprises an inner shaft and an outer shaft, the inner shaft is sleeved with the outer shaft, a limiting structure is provided between the inner shaft and the outer shaft, which can make the inner shaft and the outer shaft move relative to each other in the axial direction but limit the position in the circumferential direction; the outer shaft rotates and drives the inner shaft to rotate synchronously through the limiting structure, the inner shaft is connected to the turntable, the inner shaft is used to drive the turntable to lift and rotate together, or the inner shaft rotates and drives the outer shaft to rotate synchronously through the limiting structure, the outer shaft is connected to the turntable, and the outer shaft is used to drive the turntable to lift and rotate together.

[0006] The beneficial effects of the above technical solution are:

[0007] The present application adopts an ingenious design, in which the rotating shaft is used to lift the turntable and also to drive the turntable to rotate. Specifically, the weight of the lifting part of the mop unit is greatly reduced, which is convenient for the design of the center of gravity of the whole machine and overcomes the problem of heavy weight of the lifting part. In addition, if there are multiple mops, the solution of the present application is adopted, which is conducive to the independent lifting of each mop.

[0008] Preferably, in the case where the inner shaft is connected to the turntable, the limiting structure is provided with a connecting portion, and the connecting portion is used to be connected to the lifting mechanism, and the lifting mechanism drives the inner shaft to move axially relative to the outer shaft via the connecting portion.

[0009] Preferably, the axial position of the outer shaft is fixed, and the outer shaft is connected to a bearing, which is used to rotatably support the outer shaft.

[0010] Preferably, the connecting portion adopts a cross bar arranged on the circumference of the inner shaft, the cross bar passes through a matching groove arranged on the outer shaft, the cross bar can move up and down along the matching groove, the lifting member of the lifting mechanism drives the inner shaft upward relative to the outer shaft through the cross bar, and when the lifting member descends, the inner shaft moves downward relative to the outer shaft.

[0011] Preferably, the cross bar also serves as a circumferential transmission component. When the outer shaft rotates, the cross bar is driven to rotate through the matching groove, the rotation of the cross bar drives the inner shaft to rotate, the rotation of the inner shaft drives the turntable to rotate, and then drives the mop to rotate.

[0012] Preferably, an elastic member is further included. When the inner shaft is connected to the turntable, the elastic member is used to elastically support the inner shaft and / or the turntable downwards; when the outer shaft is connected to the turntable, the elastic member is used to elastically support the outer shaft and / or the turntable downwards.

[0013] Preferably, the elastic member is a compression spring, which is arranged between the inner shaft and the upper end of the outer shaft.

[0014] Preferably, when the mop is in contact with the cleaned surface, the compression spring is set to remain in a compressed state.

[0015] Preferably, it further comprises a position detection mechanism, and the position detection mechanism is used to control the lifting position of the mop.

[0016] The present invention also provides a cleaning machine provided with the aforementioned liftable rotating mop structure.

[0017] The beneficial effects of the above technical solution are:

[0018] The mop is directly lifted and lowered, thus overcoming the problem of heavy weight of the lifting part. During the long-term use of the cleaning machine, the lifting function of the mop is more reliable, thus significantly improving the reliability of the cleaning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the three-dimensional views of the mop unit lifting device using the liftable rotating mop structure of the present invention.

[0020] Figure 2 The second perspective view of the mop unit lifting device using the liftable rotary mop structure of the present invention (with the outer shaft removed).

[0021] Figure 3The third perspective view of the mop unit lifting device using the liftable rotary mop structure of the present invention (with the screw removed).

[0022] Explanation of the reference numerals: 1. mop unit, 2. lifting member, 3. outer shaft, 4. inner shaft, 5. bearing, 6. connecting part, 7. gear, 8. first turbine, 9. second turbine, 10. first motor, 11. first worm, 12. second motor, 13. second worm, 14. guide rod, 15. matching groove, 16. elastic member, 17. screw. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] like Figure 1 The figure shows a mop unit lifting device using a liftable rotary mop structure of the present invention, comprising: a mop unit 1 for rotary cleaning, two of which are arranged on the left and right in this example, and are basically symmetrically distributed on the left and right; a lifting mechanism for lifting the mop unit 1; and a driving mechanism for driving the mop unit 1 to rotate.

[0026] In this example, the lifting mechanism is separately arranged from the mopping unit 1 .

[0027] The lifting mechanism adopts a gear rack lifting mechanism or a spiral lifting mechanism or a cam lifting mechanism or a rocker lifting mechanism or an electromagnetic lifting mechanism. The rocker lifting mechanism is such as a fork lifting mechanism, etc., which can achieve the lifting purpose by shifting the fork. The electromagnetic lifting mechanism is such as a solenoid valve lifting mechanism, an electromagnet lifting mechanism, etc., which can achieve the lifting purpose by the extension and contraction of the valve core of the solenoid valve, and can achieve the lifting purpose by the suction function of the electromagnet. For example, an iron piece is arranged at the upper end of the mop unit 1, and an electromagnet is arranged above the iron piece. When the electromagnet is energized, it has an attraction to the iron piece, attracts the iron piece, and achieves the purpose of lifting the mop unit 1. When the electromagnet is powered off, the attraction disappears, and the mop unit 1 falls. In this example, a spiral lifting mechanism is adopted.

[0028] The above structures are all applicable to this application and can be flexibly selected according to the needs of the center of gravity design of the whole machine.

[0029] The spiral lifting mechanism is separately arranged from the mop unit 1, and is provided with a lifting member 2, which is connected to the mop unit 1. The spiral lifting mechanism indirectly drives the mop unit 1 to rise and fall through the lifting member 2. The above structure is suitable for the lifting mechanism to be separately arranged from the mop unit 1.

[0030] The lifting member 2 is a cross beam member, which connects the mopping units 1. A driving part of the lifting mechanism is arranged between the mopping units 1, and the driving part is used to drive the cross beam member to lift. The aforementioned structure is compact, simple and reliable. In addition, the lifting and lowering synchronization of the mopping units 1 is good. In addition, it is also convenient to arrange the various components of the lifting mechanism and to set the driving part in the center of the cross beam member. If the driving part is set in the center of the cross beam member, the mechanical performance of lifting is better.

[0031] In this example, two mop units 1 are provided, and the cross beam can be set as a strip cross beam. The two ends of the cross beam are respectively connected to a mop unit 1. A screw 17 is provided between the two mop units 1. The screw 17 is threadedly connected to the cross beam. The screw 17 rotates to drive the cross beam to rise and fall. The screw 17 is located in the middle of the cross beam. In this example, in order to control the height, the part between the two ends of the cross beam is designed to be sunken.

[0032] The mop unit 1 comprises a mop, a turntable and a rotating shaft. The mop is connected to the turntable, and the rotating shaft is connected to the turntable. The rotating shaft is used to lift the turntable and also to drive the turntable to rotate.

[0033] The turntable can be the lower end portion of the rotating shaft, or can be an independently arranged disk body, and the function of the turntable is to install the mop.

[0034] The rotating shaft includes an inner shaft 4 and an outer shaft 3, the inner shaft 4 and the outer shaft 3 are sleeved, and a limiting structure is provided between the inner shaft 4 and the outer shaft 3, which allows the inner shaft 4 and the outer shaft 3 to move relative to each other in the axial direction, but is limited in the circumferential direction. The outer shaft 3 rotates to drive the inner shaft 4 to rotate synchronously through the limiting structure, the inner shaft 4 is connected to the turntable, and the inner shaft 4 is used to drive the turntable to rise and fall and rotate together, or the inner shaft 4 rotates to drive the outer shaft 3 to rotate synchronously through the limiting structure, the outer shaft 3 is connected to the turntable, and the outer shaft 3 is used to drive the turntable to rise and fall and rotate together. The above structure has the advantages of simple and compact structure, stability and reliability.

[0035] In this example, the outer shaft 3 is connected to the first driving mechanism in a transmission manner, and the rotation of the outer shaft 3 drives the inner shaft 4 to rotate synchronously through the limiting structure, and the limiting structure is provided with a connecting portion 6, and the connecting portion 6 is connected to the lifting mechanism, and the lifting mechanism is separated from the mop unit 1, and the lifting mechanism drives the inner shaft 4 to move axially relative to the outer shaft 3 through the connecting portion 6. The above structure can greatly simplify the setting and layout of the first driving machine and the lifting mechanism, reduce the weight of the lifting part of the mop unit 1, and optimize the center of gravity of the whole machine.

[0036] The spiral lifting mechanism used in this example includes a second motor 12, a second worm 13, a second turbine 9, and a screw 17. The second worm 13 is connected to the second motor 12, the second worm 13 is connected to the second turbine 9, the second turbine 9 is connected to the screw 17, the screw 17 and the lifting member 2 are threadedly connected, the rotation of the second motor 12 drives the screw 17 to rotate through the worm transmission, and the rotation of the screw 17 realizes the lifting and lowering of the lifting member 2.

[0037] The two ends of the lifting member 2 are respectively connected to the outer shaft 3 and can move up and down relative to the outer shaft 3. In this example, the connecting part 6 adopts a cross bar arranged on the circumference of the inner shaft 4. The cross bar passes through the matching groove 15 set on the outer shaft 3. The cross bar can move up and down along the matching groove 15. In order to ensure more uniform force, two cross bars are evenly distributed around the circumference. The lifting member 2 drives the inner shaft 4 upward through the cross bar, and the inner shaft 4 moves upward relative to the outer shaft 3. Conversely, when the lifting member 2 descends, the inner shaft 4 moves downward relative to the outer shaft 3.

[0038] The cross bar also serves as a circumferential transmission component, that is, when the outer shaft 3 rotates, the cross bar is driven to rotate through the matching groove 15, the rotation of the cross bar drives the inner shaft 4 to rotate, the rotation of the inner shaft 4 drives the turntable to rotate, and then drives the mop to rotate.

[0039] The first driving mechanism used in this example includes a first motor 10, a first worm 11, and a first turbine 8. The first motor 10 is a double-output motor, and each of the two rotating ends of the double-output motor is connected to a first worm 11. Correspondingly, there are two first turbines 8. The first motor 10 drives the shaft where the first turbine 8 is located to rotate through the worm transmission, and the shaft where the first turbine 8 is located drives the gear 7 connected to the outer shaft 3 to rotate through the gear transmission, thereby realizing that one first motor 10 drives the outer shafts 3 of the two mop units 1 to rotate.

[0040] It also includes an elastic member 16. When the inner shaft 4 is connected to the turntable, the elastic member 16 is used to elastically support the inner shaft 4 or / and the turntable downwards. When the outer shaft 3 is connected to the turntable, the elastic member 16 is used to elastically support the outer shaft 3 or / and the turntable downwards. In this example, the inner shaft 4 is connected to the turntable. In the above structure, since the elastic member 16 provides downward elastic support, the lifting mechanism only needs to focus on lifting the mop unit 1. When descending, the lifting mechanism releases the mop unit 1. Under the gravity of the mop unit 1, the mop unit 1 naturally descends. Under the action of the elastic member 16, the mop elastically sticks to the wiped surface. As the unevenness of the wiped surface changes, the mop will naturally rise and fall under the action of the elastic member, so that the mop can better clean the wiped surface. The ingenious arrangement of the elastic member 16 is greatly conducive to improving the compactness of the structure of the present application.

[0041] The elastic member 16 is a compression spring, which is arranged between the inner shaft 4 and the upper end of the outer shaft 3 , and has a very compact structure. The upper and lower ends of the outer shaft 3 are connected to bearings 5 ​​, and the outer shaft 3 is set between the two bearings 5 ​​.

[0042] When the lifting member 2 rises, the inner shaft 4 is driven to rise, and the compression spring is compressed. When the lifting member 2 descends, the compression spring elastically supports the inner shaft 4 downward. In this example, in order to make the mop fit the cleaned surface better, when the mop fits the cleaned surface, the compression spring is set to remain in a compressed state, so that adaptive cleaning of the uneven cleaned surface can be achieved. Moreover, there is a certain pressure during cleaning, and the cleaning effect is better.

[0043] It also includes a position detection mechanism, which is used to control the lifting position of the mop unit 1. For example, a code disk for position detection is provided for the second motor 12, and the rotating position of the second motor 12 is detected by the code disk, so as to control the lifting position of the mop unit 1. Such a design can avoid abnormal lifting function caused by power failure, program running errors, etc. When an accident occurs, as long as it is detected that the code disk has returned to zero, the control part can know that the mop unit 1 has returned to the initial position. In this way, the second motor 12 can stop working in time, and the problem of reaching the position but still rotating will not occur, thereby significantly improving the reliability of the lifting function.

[0044] In this example, the overall layout of the mop unit lifting device is as follows: two mop units 1 are arranged in a left-right distribution, the lifting member 2 is located between the two axes of the two mop units 1, the first driving mechanism is located at the front side of the lifting member 2, the first motor 10 is arranged in the center, the spiral lifting mechanism is located at the rear side of the lifting member 2, the screw 17 is arranged in the center, and in order to make the lifting member 2 rise and fall smoothly, a guide rod 14 is also provided. The above overall layout has a compact structure, a low overall height, and saves height space. In terms of performance, it can well realize the lifting function, and the lifting action is smooth and accurate, and the performance is stable and reliable.

[0045] A cleaning machine is provided with the mop unit lifting device, that is, the mop unit lifting device is installed in the casing of the cleaning machine, and the motor and the code disk are connected to the control part of the cleaning machine for control.

[0046] The working principle of the present invention can be referred to as follows: when the mop unit 1 needs to be raised, the first motor 10 remains in a stopped state, the second motor 12 rotates to raise the lifting member 2, the lifting member 2 lifts the inner shaft 4, thereby raising the mop unit 1, otherwise it falls, and when it falls into place, the first motor 10 is restarted to continue cleaning.

[0047] The present invention realizes direct lifting of the mop unit 1 through ingenious design, thereby overcoming the problem of heavy weight of the lifting part. In addition, the embodiment of the present invention also has the advantages of simple and compact structure, good durability, stability and reliability, and low cost. It has strong practicality and can promote the upgrading of the lifting function of the mop unit, making the cleaning machine better to use.

[0048] The above examples illustrate the present invention, but they cannot be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A retractable rotary mop structure, comprising a mop unit, the mop unit comprising a mop, a turntable and a rotating shaft, the mop is connected to the turntable, the rotating shaft is connected to the turntable, characterized in that: The rotating shaft is used to lift the turntable and also to drive the turntable to rotate. The rotating shaft includes an inner shaft and an outer shaft. The inner shaft is sleeved with the outer shaft. A limiting structure is provided between the inner shaft and the outer shaft, which allows the inner shaft and the outer shaft to move relative to each other in the axial direction but is limited in the circumferential direction. The rotation of the outer shaft drives the inner shaft to rotate synchronously through the limiting structure. The inner shaft is connected to the turntable and is used to drive the turntable to lift and rotate together. In the case where the inner shaft is connected to the turntable, the limiting structure is provided with a connecting portion, which is used to connect with the lifting mechanism, and the lifting mechanism drives the inner shaft to move axially relative to the outer shaft via the connecting portion.

2. The liftable rotary mop structure according to claim 1, characterized in that: The axial position of the outer shaft is fixed, and the outer shaft is connected with a bearing, which is used for rotatably supporting the outer shaft.

3. The liftable rotary mop structure according to claim 1 or 2, characterized in that: The connecting part adopts a cross bar arranged on the circumference of the inner shaft. The cross bar passes through the matching groove arranged on the outer shaft. The cross bar can move up and down along the matching groove. The lifting part of the lifting mechanism drives the inner shaft to move upward relative to the outer shaft through the cross bar. When the lifting part descends, the inner shaft moves downward relative to the outer shaft.

4. The liftable rotary mop structure according to claim 3, characterized in that: The cross bar also serves as a circumferential transmission component. When the outer shaft rotates, the cross bar is driven to rotate through the matching groove. The rotation of the cross bar drives the inner shaft to rotate. The rotation of the inner shaft drives the turntable to rotate, and then drives the mop to rotate.

5. The liftable rotary mop structure according to claim 1, characterized in that: It also includes an elastic member. When the inner shaft is connected to the turntable, the elastic member is used to elastically support the inner shaft and / or the turntable downwards. When the outer shaft is connected to the turntable, the elastic member is used to elastically support the outer shaft and / or the turntable downwards.

6. The liftable rotary mop structure according to claim 5, characterized in that: The elastic member adopts a compression spring, which is arranged between the inner shaft and the upper end of the outer shaft.

7. The liftable rotary mop structure according to claim 5 or 6, characterized in that: When the mop is in contact with the cleaned surface, the compression spring is set to remain in a compressed state.

8. The liftable rotary mop structure according to claim 1, characterized in that: It also includes a position detection mechanism, which is used to control the lifting position of the mop.

9. A cleaning machine, characterized in that: A liftable rotating mop structure is provided as described in any one of claims 1 to 8.

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