Mop lifting structure

Abstract

The utility model provides a mop lifting structure which comprises a driving motor, a gear set structure, a mounting shell, a mop, a lifting screw rod, a lifting nut and a screw rod supporting structure, the driving motor, the gear set structure, the lifting screw rod, the lifting nut and the screw rod supporting structure are mounted in the mounting shell, and the output end of the driving motor is connected with the gear set structure. The outer side face of the lifting nut is provided with a tooth surface meshed with the gear set structure, the upper end of the lifting screw is further provided with a screw supporting structure, the mounting shell is provided with a lifting mechanism mounting sleeve, and the lifting screw is movably mounted in the lifting mechanism mounting sleeve through the screw supporting structure. And the lower end of the lifting screw rod is fixedly connected with the mop. The supporting sleeve provided with the screw supporting structure is used for supporting the screw, and the screw cannot axially deviate, so that the vertical driving of the screw is more stable, the service life is longer, the structure is simpler, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of mop installation structures, in particular to a mop lifting structure. Background Art

[0002] A robot vacuum, also known as an automatic sweeper, smart vacuum, or robot vacuum, is a type of smart home appliance that uses artificial intelligence to automatically clean floors. It typically uses a brushing and vacuuming process to collect debris into its own trash collection bin, completing the cleaning process.

[0003] A Chinese invention patent, currently published with publication number CN116671832A, discloses a sweeper with a roller-type lifting mop. In one state, the lifting mop is lowered to mop the floor, and in another state, it is raised and no longer mops. The lifting mop is driven up and down by a lifting drive assembly, which includes a slide rail mounted on a bottom housing and a slide rail drive motor. A rack is provided in the middle of the slide rail, and channels are provided on either side of the rack on the slide rail for the overlapping portion of the lifting mop to pass through and overlap. A transmission gear is mounted on the output shaft of the slide rail drive motor, which meshes with the rack.

[0004] It has the following defects:

[0005] The structure of the slide rail is complex, requiring a rack in the middle and channels on both sides. The slide rail is long, and the opening of the channels will weaken the structural strength of the slide rail. In order to ensure support for the lifting mop, the structural strength of the slide rail also needs to be enhanced, which increases the difficulty of slide rail molding.

[0006] The mop lifting structure of the existing sweeping robot is relatively complex, and its operating stability is poor, and it cannot achieve balanced and stable vertical lifting, which can prevent the mop connection structure from being damaged or malfunctioning due to unstable lifting.

[0007] There is a need for a more stable mop lifting structure that can solve the above-mentioned problems. Utility Model Content

[0008] The utility model provides a mop lifting structure, which solves the problems of the existing mop lifting structure being relatively complex and having poor stability by technically transforming the existing mop installation structure.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A mop lifting structure comprises a drive motor, a gear set structure, a mounting shell, a mop, a lifting screw, a lifting nut and a screw support structure. The drive motor, the gear set structure, the lifting screw, the lifting nut and the screw support structure are installed in the mounting shell. The output end of the drive motor is connected to the gear set structure. The outer side surface of the lifting nut is provided with a tooth surface that meshes with the gear set structure. The inner cavity of the lifting nut is threadedly connected to the lifting screw. The screw support structure is also installed at the upper end of the lifting screw. A lifting mechanism mounting sleeve is provided on the mounting shell. The lifting screw is movably installed in the lifting mechanism mounting sleeve through the screw support structure. The lower end of the lifting screw is fixedly connected to the mop.

[0011] Preferably, the screw support structure includes a fixing screw, a first bearing, a support sleeve and a rolling bearing. The inner cavity of the support sleeve is provided with an annular conical structure. The first bearing is installed on the upper side of the annular conical structure. The fixing screw passes through the first bearing and is fixedly connected to the top surface of the lifting screw. The outer peripheral side of the upper end of the lifting screw is provided with a rolling bearing. The rolling bearing is arranged on the lower side of the annular conical structure in the inner cavity of the support sleeve, and the support sleeve is arranged in the lifting mechanism mounting sleeve.

[0012] Preferably, a spherical protrusion is protruding from the inner side wall of the lifting mechanism mounting sleeve, and an arc-shaped groove is provided on the outer side surface of the support sleeve, and the spherical protrusion is snap-fitted into the arc-shaped groove.

[0013] Preferably, a second bearing is provided on the outer side surface of the lifting nut, and the lifting nut is rotatably mounted in the mounting housing via the second bearing.

[0014] Preferably, a first limiting protrusion facing downward is provided at the upper end of the lifting screw thread, and a second limiting protrusion facing upward is provided at the upper end of the lifting nut. When the lifting screw descends to the lowermost end along the lifting nut, the first limiting protrusion and the second limiting protrusion are conflicted with each other.

[0015] The beneficial effects of the present invention are:

[0016] The driving structure of the present application is relatively simple, and the vertical space occupied is small through the driving method of the driving motor and the gear set structure.

[0017] The driving motor of the utility model is connected to the lifting nut through a gear set structure. The lifting nut is movably installed in the mounting shell through a second bearing, and the lifting nut is connected to the vertically arranged lifting screw. A lifting mechanism mounting sleeve is provided on the mounting shell. The lifting screw is movably installed in the lifting mechanism mounting sleeve through a screw support structure. The support sleeve of the screw support structure supports the screw, and the screw will not undergo axial deviation, so that the vertical drive of the screw is more stable and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation shell structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Explanation of the accompanying figures: driving motor 1, gear set structure 2, mounting shell 3, lifting mechanism mounting sleeve 31, spherical protrusion 311, second bearing 32, lifting screw 4, first limiting protrusion 41, lifting nut 5, tooth surface 51, second limiting protrusion 52, screw support structure 6, fixing screw 61, first bearing 62, support sleeve 63, annular frustum structure 631, arc-shaped groove 632, rolling bearing 64. DETAILED DESCRIPTION

[0023] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-4 As shown, the utility model provides a mop lifting structure, including a drive motor 1, a gear set structure 2, a mounting shell 3, a mop, a lifting screw 4, a lifting nut 5 and a screw support structure 6. The drive motor 1, the gear set structure 2, the lifting screw 4, the lifting nut 5 and the screw support structure 6 are installed in the mounting shell 3. The output end of the drive motor 1 is connected to the gear set structure 2. The outer side surface of the lifting nut 5 is provided with a tooth surface 51 that meshes with the gear set structure 2. The inner cavity of the lifting nut 5 is threadedly connected to the lifting screw 4. The upper end of the lifting screw 4 is also provided with a screw support structure 6. A lifting mechanism mounting sleeve 31 is provided on the mounting shell 3. The lifting screw 4 is movably mounted in the lifting mechanism mounting sleeve 31 through the screw support structure 6. The lower end of the lifting screw 4 is fixedly connected to the mop.

[0025] Furthermore, in order to enable the screw support structure 6 to provide axial support for the lifting screw 4, the screw support structure 6 includes a fixing screw 61, a first bearing 62, a support sleeve 63 and a rolling bearing 64. The inner cavity of the support sleeve 63 is provided with an annular frustum structure 631, and the first bearing 62 is installed on the upper side of the annular frustum structure 631. The fixing screw 61 passes through the first bearing 62 and is fixedly connected to the top surface of the lifting screw 4, and a rolling bearing 64 is provided on the outer peripheral side of the upper end of the lifting screw 4. The rolling bearing 64 is arranged on the lower side of the annular frustum structure 631 in the inner cavity of the support sleeve 63, and the support sleeve 63 is sleeved in the lifting mechanism mounting sleeve 31.

[0026] Furthermore, to ensure stable installation of the support sleeve 63 within the lifting mechanism mounting sleeve 31, a spherical protrusion 311 is provided on the inner sidewall of the lifting mechanism mounting sleeve 31, and an arcuate groove 632 is provided on the outer side of the support sleeve 63. The spherical protrusion 311 is engaged with the arcuate groove 632. In a second embodiment, three arcuate grooves 632 are evenly spaced apart on the outer side of the support sleeve 63, and three spherical protrusions 311 are provided within the lifting mechanism mounting sleeve 31.

[0027] Furthermore, in order to enable the lifting nut 5 to be rotatably installed in the mounting housing 3 , a second bearing 32 is provided on the outer side of the lifting nut 5 , and the lifting nut 5 is rotatably installed in the mounting housing 3 through the second bearing 32 .

[0028] Furthermore, in order to limit the lifting stroke, a first limiting protrusion 41 facing downward is provided at the upper end of the thread of the lifting screw 4, and a second limiting protrusion 52 facing upward is provided at the upper end of the lifting nut 5. When the lifting screw 4 descends to the lowermost end along the lifting nut 5, the first limiting protrusion 41 and the second limiting protrusion 52 are arranged to conflict with each other.

[0029] The driving structure of the present application is relatively simple, and the vertical space occupied is small through the driving method of the driving motor and the gear set structure.

[0030] The driving motor of the utility model is connected to the lifting nut through a gear set structure. The lifting nut is movably installed in the mounting shell through a second bearing, and the lifting nut is connected to the vertically arranged lifting screw. A lifting mechanism mounting sleeve is provided on the mounting shell. The lifting screw is movably installed in the lifting mechanism mounting sleeve through a screw support structure. The support sleeve of the screw support structure supports the screw, and the screw will not undergo axial deviation, so that the vertical drive of the screw is more stable and has a longer service life.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

[0032] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0033] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A mop lifting structure, characterized in that: It includes a driving motor, a gear set structure, an installation shell, a mop, a lifting screw, a lifting nut and a screw support structure. The driving motor, the gear set structure, the lifting screw, the lifting nut and the screw support structure are installed in the installation shell. The output end of the driving motor is connected to the gear set structure. The outer side surface of the lifting nut is provided with a tooth surface that meshes with the gear set structure. The inner cavity of the lifting nut is threadedly connected to the lifting screw. The upper end of the lifting screw is also provided with a screw support structure. A lifting mechanism mounting sleeve is provided on the installation shell. The lifting screw is movably installed in the lifting mechanism mounting sleeve through the screw support structure. The lower end of the lifting screw is fixedly connected to the mop.

2. A mop lifting structure according to claim 1, characterized in that: The screw support structure includes a fixing screw, a first bearing, a support sleeve and a rolling bearing. The inner cavity of the support sleeve is provided with an annular conical structure. The first bearing is installed on the upper side of the annular conical structure. The fixing screw passes through the first bearing and is fixedly connected to the top surface of the lifting screw. A rolling bearing is provided on the outer peripheral side of the upper end of the lifting screw. The rolling bearing is provided on the lower side of the annular conical structure in the inner cavity of the support sleeve. The support sleeve is arranged in the lifting mechanism mounting sleeve.

3. The mop lifting structure according to claim 2, characterized in that: A spherical protrusion is protruding from the inner side wall of the lifting mechanism installation sleeve, and an arc-shaped groove is provided on the outer side surface of the support sleeve. The spherical protrusion is engaged with the arc-shaped groove.

4. The mop lifting structure according to claim 1, characterized in that: A second bearing is provided on the outer side surface of the lifting nut, and the lifting nut is rotatably mounted in the mounting housing via the second bearing.

5. The mop lifting structure according to claim 1, characterized in that: A first limiting protrusion facing downward is provided at the upper end of the thread of the lifting screw, and a second limiting protrusion facing upward is provided at the upper end of the lifting nut. When the lifting screw descends to the lowermost end along the lifting nut, the first limiting protrusion and the second limiting protrusion are in conflict with each other.

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