Sweeper

Abstract

The utility model belongs to the technical field of cleaning equipment, and particularly relates to a sweeper which comprises a shell and a lifting module, the lifting module is arranged on the shell and comprises a driving device, a first transmission shaft and a second shaft sleeve, the driving device is arranged at the upper end of the first transmission shaft, and the first shaft sleeve is arranged at the lower end of the first transmission shaft. The first shaft sleeve is sleeved with a second shaft sleeve and a cleaning device, the cleaning device comprises a mounting part, the mounting part penetrates through the shell to be connected with the second shaft sleeve, the driving device drives the cleaning device to move up and down or rotate, and in the process that the driving device drives the cleaning device to ascend, the cleaning device is driven by the driving device to move up and down. The cleaning device abuts against the shell so as to prevent the cleaning device from rotating, and the situation that the sweeper stops working and the cleaning cloth disc cannot stop rotating in time is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a sweeping machine. Background Art

[0002] A sweeping machine, also known as an automatic cleaning machine, smart vacuum cleaner, robot vacuum cleaner, etc., is a kind of smart home appliance. It can automatically complete the function of cleaning the floor in the room with a certain degree of artificial intelligence. The lifting module is an important component structure of the sweeping machine. A rag plate is generally provided at the lower end. The lifting module is used to lift or rotate the rag plate. The rag plate cleans the floor while it is in contact with the ground and rotating.

[0003] However, the existing lifting modules still have the following technical problems during use:

[0004] When the rotating shaft of the existing lifting module rises, the rag plate is driven to rise and the rag plate is lifted off the ground. However, when the driving motor in the lifting module stops working, the rag plate cannot stop rotating in time due to its own inertia.

[0005] For this reason, a sweeping machine is now proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a sweeping machine to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A sweeping machine, comprising:

[0009] case,

[0010] A lifting module is provided with a housing on the upper side, and the lifting module comprises a driving device, a first transmission shaft and a second shaft sleeve, wherein the upper end of the first transmission shaft is provided with a driving device, the lower end of the first transmission shaft is provided with a first shaft sleeve, and the first shaft sleeve is provided with a second shaft sleeve,

[0011] The cleaning device comprises a mounting portion, the mounting portion passes through the shell and is connected to the second sleeve, the driving device drives the cleaning device to move up and down or rotate, and when the driving device drives the cleaning device to rise, the cleaning device abuts against the shell to prevent the cleaning device from rotating.

[0012] Preferably, a protrusion is provided on the surface of the cleaning device facing the shell and / or on the surface of the shell facing the cleaning device.

[0013] Preferably, a mounting groove is provided on the surface of the cleaning device facing the shell, a friction pad is provided inside the mounting groove, and the thickness of the friction pad is greater than or equal to the depth of the mounting groove.

[0014] Preferably, a friction portion is provided on the upper surface of the friction pad, and the friction portion is concave-convex upward.

[0015] Preferably, the lifting module is provided with a protective shell, the driving device includes a first transmission gear, the first transmission shaft is rotatably arranged inside the protective shell, the first transmission gear is sleeved on the outside of the first transmission shaft, a second transmission shaft is rotatably arranged inside the protective shell at the front end of the first transmission shaft, a second transmission gear is arranged outside the second transmission shaft, a worm gear is sleeved on the lower end of the second transmission gear outside the second transmission shaft, a transmission motor is fixedly arranged on the side wall of the protective shell, a worm is fixedly arranged on the output end of the transmission motor, and the worm is meshed with the second transmission gear.

[0016] Preferably, the inner wall of the first sleeve is provided with an internal thread or an external thread, and the outer wall of the second sleeve is provided with an external thread or an internal thread.

[0017] Preferably, a shock-absorbing pad is fixedly provided on the lower side wall of the transmission motor, and the lower side wall of the shock-absorbing pad is fixedly connected to the upper side wall of the shell.

[0018] Preferably, a fixing block is fixedly provided on the side wall of the protective shell at the left end of the transmission motor, and the internal threads of the fixing block are provided with connecting bolts, and the transmission motor is fixedly connected to the fixing block via the connecting bolts.

[0019] Preferably, the transmission motor is a forward and reverse motor.

[0020] Preferably, the first transmission shaft and the second transmission shaft are both rotatably connected to the lower side wall of the protective shell via bearings.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The present application transmits the cleaning component through the lifting module. When in use, the transmission motor rotates forward, and through the cooperation of the first sleeve and the second sleeve, the second sleeve descends to a certain position inside the first sleeve and then starts to rotate as a whole. When use is over, the transmission motor is reversed, and the second sleeve rises in the reverse thread inside the first sleeve. When it rotates to a certain height, the upper side wall of the friction pad is in friction contact with the lower side wall of the shell to frictionally stop the rag plate, which can effectively prevent the sweeper from stopping working and the rag plate from stopping rotating in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the new sweeping machine;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the medium sweeper after removing part of the shell;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the lifting module and the cleaning device after removing part of the protective shell and the shell;

[0026] Figure 4 It is a schematic diagram of the connection structure between the cleaning device and the first transmission shaft;

[0027] Figure 5 Schematic diagram of the installation structure of the friction pad.

[0028] In the figure: 1 shell, 2 cleaning device, 3 lifting module, 4 first transmission shaft, 5 first transmission gear, 6 second transmission shaft, 7 second transmission gear, 8 worm gear, 9 transmission motor, 10 worm, 11 first sleeve, 12 second sleeve, 13 mounting part, 14 friction part, 15 mounting groove, 16 friction pad, 17 shock-absorbing pad, 18 fixing block, 31 protective shell. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Example

[0032] See also Figure 1-5 , the utility model provides a technical solution:

[0033] A sweeping machine, comprising

[0034] Shell 1,

[0035] The lifting module 3 is provided with the housing 1 on the top. The lifting module 3 includes a driving device, a first transmission shaft 4 and a second shaft sleeve 12. The upper end of the first transmission shaft 4 is provided with the driving device, the lower end of the first transmission shaft 4 is provided with a first shaft sleeve 11, and the first shaft sleeve 11 is provided with a second shaft sleeve 12.

[0036] The cleaning device 2 includes a mounting portion 13, which passes through the shell 1 and is connected to the second sleeve 12. The driving device drives the cleaning device 2 to move up and down or rotate. When the driving device drives the cleaning device 2 to rise, the cleaning device 2 abuts against the shell 1 to prevent the cleaning device from rotating.

[0037] When the sweeper needs to clean the ground, the driving device drives the second sleeve 12 and the cleaning device 2 to move downward through the first transmission shaft 4 and the first sleeve 11 to make the cleaning device 2 contact the ground, and then the driving device drives the cleaning device 2 to rotate. When the sweeper finishes cleaning the ground, the driving device drives the cleaning device 2 to rise. During the rising process of the cleaning device 2, the cleaning device 2 abuts against the shell 1, thereby generating a force between the cleaning device 2 and the shell 1 to hinder the rotation of the cleaning device 2, thereby preventing the cleaning device 2 from rotating.

[0038] The cleaning device 2 of the present application can be a rag plate or other floor cleaning device. A rag is detachably provided on the side of the rag plate close to the ground, and a mounting portion 13 is provided on the side of the rag plate away from the ground to facilitate mounting the rag plate on the second sleeve 12.

[0039] Since the cleaning device 2 and the shell 1 abut against each other and generate friction, this will affect the use time of the cleaning device 2 and the shell 1. For this reason, a protrusion may be provided on the surface of the cleaning device 2 facing the shell 1. When the cleaning device 2 rises, the protrusion abuts against the shell 1, and a force that hinders the rotation of the cleaning device is generated between the protrusion and the shell 1. Of course, a protrusion may also be provided on the surface of the shell 1 facing the cleaning device 2. When the cleaning device 2 rises, a force that hinders the rotation of the cleaning device is generated between the protrusion and the cleaning device 2. In addition, protrusions may be provided at the corresponding positions of the cleaning device 2 and the shell 1 at the same time. When the cleaning device 2 rises, a force that hinders the rotation of the cleaning device is generated between the two protrusions.

[0040] In order to facilitate the arrangement of friction components on the cleaning device 2, an installation groove 15 is provided on the surface of the cleaning device 2 facing the shell 1, and a friction pad 16 is provided inside the installation groove 15. The thickness of the friction pad 16 is greater than or equal to the depth of the installation groove 15, so that the friction pad 16 can contact the cleaning device 2 and generate friction. At the same time, when the friction pad 16 is severely worn, the friction pad 16 can be replaced in time.

[0041] Preferably, a friction portion 14 is provided on the upper surface of the friction pad 16 , and the friction portion 14 is concave-convex upward to increase the friction force between the friction portion 14 and the shell.

[0042] A protective shell 31 is provided on the lifting module 3, and the driving device includes a first transmission gear 5. The first transmission shaft 4 is rotatably arranged inside the protective shell 31, and the first transmission gear 5 is sleeved on the outside of the first transmission shaft 4. The inside of the protective shell 31 is located at the front end of the first transmission shaft 4 and is rotatably arranged with a second transmission shaft 6, and the outside of the second transmission shaft 6 is provided with a second transmission gear 7. The outside of the second transmission shaft 6 is located at the lower end of the second transmission gear 7 and is sleeved with a worm gear 8. A transmission motor 9 is fixedly provided on the side wall of the protective shell 31, and a worm 10 is fixedly provided at the output end of the transmission motor 9, and the worm 10 is meshed with the second transmission gear 7.

[0043] The inner wall of the first sleeve 11 is provided with an internal thread or an external thread, and the outer wall of the second sleeve 12 is provided with an external thread or an internal thread. By providing a threaded structure between the first sleeve 11 and the second sleeve 12, the force on the first sleeve 11 is transferred to the second sleeve 12.

[0044] A shock absorbing pad 17 is fixedly provided on the lower side wall of the transmission motor 9 , and the lower side wall of the shock absorbing pad 17 is fixedly connected to the upper side wall of the housing 1 . The shock absorbing pad 17 can effectively prevent the vibration generated by the transmission motor 9 from being transmitted to the housing 1 .

[0045] A fixing block 18 is fixedly provided on the side wall of the protective shell 31 at the left end of the transmission motor 9 . The internal threads of the fixing block 18 are provided with connecting bolts. The transmission motor 9 is fixedly connected to the fixing block 18 via the connecting bolts.

[0046] The transmission motor 9 can be a forward and reverse motor, so as to realize the up and down movement of the cleaning device 2.

[0047] The first transmission shaft 4 and the second transmission shaft 6 are both rotatably connected to the lower side wall of the protective shell 31 through bearings.

[0048] Working principle:

[0049] When the floor needs to be cleaned, the transmission motor 9 is started, and the transmission motor 9 drives the worm 10 at the output end to rotate, the worm 10 drives the worm wheel 8 to rotate, the worm wheel 8 drives the second transmission shaft 6 to rotate, the second transmission shaft 6 drives the second transmission gear 7 to rotate, the second transmission gear 7 drives the first transmission gear 5 to rotate, the first transmission gear 5 drives the first transmission shaft 4 to rotate, and the first transmission shaft 4 drives the first shaft sleeve 11 at the lower end to rotate. When the first shaft sleeve 11 rotates, the internal second shaft sleeve 12 will start to move downward in the first shaft sleeve 11 through the cooperation of the external thread and the internal thread. When it moves to a point where it cannot move, the first shaft sleeve 11, the second shaft sleeve 12, and the rag disk at the lower end rotate to contact the floor.

[0050] When cleaning is finished, the transmission motor 9 reverses, and the second sleeve 12 spirally moves upward inside the first sleeve 11, and the friction portion 14 of the upper side wall of the direct friction pad 16 contacts the lower side wall of the shell 1. Because of the friction generated by the mutual contact, the rag plate is stopped immediately, so that the rag plate no longer rotates.

[0051] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sweeping machine, characterized in that: include: Housing (1), A lifting module (3) is provided with a housing (1) on top, the lifting module (3) comprising a driving device, a first transmission shaft (4) and a second shaft sleeve (12), the driving device being provided at the upper end of the first transmission shaft (4), the first shaft sleeve (11) being provided at the lower end of the first transmission shaft (4), the second shaft sleeve (12) being sleeved on the first shaft sleeve (11), A cleaning device (2), the cleaning device comprising a mounting portion (13), the mounting portion (13) passing through the shell (1) and connected to the second shaft sleeve (12), the driving device driving the cleaning device (2) to move up and down or rotate, and when the driving device drives the cleaning device (2) to rise, the cleaning device (2) abuts against the shell (1) to prevent the cleaning device from rotating.

2. A sweeping machine according to claim 1, characterized in that: A protrusion is provided on the surface of the cleaning device (2) facing the housing (1) and / or on the surface of the housing (1) facing the cleaning device (2).

3. A sweeping machine according to claim 1, characterized in that: A mounting groove (15) is provided on the surface of the cleaning device (2) facing the housing (1), a friction pad (16) is provided inside the mounting groove (15), and the thickness of the friction pad (16) is greater than or equal to the depth of the mounting groove (15).

4. A sweeping machine according to claim 3, characterized in that: The upper surface of the friction pad (16) is provided with a friction portion (14), and the friction portion (14) is in an upwardly concave-convex shape.

5. A sweeping machine according to any one of claims 1 to 4, characterized in that: The lifting module (3) is provided with a protective shell (31), the driving device comprises a first transmission gear (5), the first transmission shaft (4) is rotatably arranged inside the protective shell (31), the first transmission gear (5) is sleeved and arranged outside the first transmission shaft (4), a second transmission shaft (6) is rotatably arranged inside the protective shell (31) at the front end of the first transmission shaft (4), a second transmission gear (7) is arranged outside the second transmission shaft (6), a worm gear (8) is sleeved and arranged outside the second transmission shaft (6) at the lower end of the second transmission gear (7), a transmission motor (9) is fixedly arranged on the side wall of the protective shell (31), a worm (10) is fixedly arranged at the output end of the transmission motor (9), and the worm (10) is meshed with the second transmission gear (7).

6. A sweeping machine according to any one of claims 1 to 4, characterized in that: The inner wall of the first shaft sleeve (11) is provided with an internal thread or an external thread, and the outer wall of the second shaft sleeve (12) is provided with an external thread or an internal thread.

7. A sweeping machine according to claim 5, characterized in that: A shock absorbing pad (17) is fixedly provided on the lower side wall of the transmission motor (9), and the lower side wall of the shock absorbing pad (17) is fixedly connected to the upper side wall of the housing (1).

8. A sweeping machine according to claim 5, characterized in that: A fixing block (18) is fixedly provided on the side wall of the protective shell (31) at the left end of the transmission motor (9), and a connecting bolt is provided on the internal thread of the fixing block (18), and the transmission motor (9) is fixedly connected to the fixing block (18) via the connecting bolt.

9. A sweeping machine according to claim 5, characterized in that: The transmission motor (9) is a forward and reverse motor.

10. A sweeping machine according to claim 5, characterized in that: The first transmission shaft (4) and the second transmission shaft (6) are both rotatably connected to the lower side wall of the protective shell (31) via bearings.

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