Floor sweeper mop lifting module and floor sweeper

Abstract

The utility model discloses a sweeper mop lifting module and the sweeper, wherein the sweeper mop lifting module comprises a gear box and a driving motor, a middle rotating shaft and a driving shaft are installed inside the gear box, a duplicate gear is arranged on the middle rotating shaft, a worm is arranged on an output shaft of the driving motor, a large tooth part of the duplicate gear is a worm gear, and a small tooth part of the duplicate gear is a worm gear. A driving gear is arranged on the driving shaft, the driving gear is meshed with a small tooth part of the duplicate gear, a damping sleeve is arranged at the bottom of the gearbox, a lifting sleeve is arranged in the damping sleeve, an internal thread sleeve is fixedly arranged in the lifting sleeve, and internal threads are arranged on the inner wall of the internal thread sleeve; the driving shaft is provided with a lifting driving sleeve, the outer wall of the lifting driving sleeve is provided with external threads, and the external threads are matched with the internal threads. The mop lifting module of the sweeper and the sweeper have the advantages of being simple in structure and easy to assemble, the production process is greatly simplified, and the production efficiency and the stability and reliability of products are improved.

Description

Technical Field

[0001] The utility model relates to the field of floor sweepers, in particular to a mop lifting module and a floor sweeper for a floor sweeper. Background Art

[0002] With the improvement of people's living standards, intelligent appliances have increasingly entered people's living and working environments. Among them, floor sweepers are widely used, which can intelligently perform activities such as floor sweeping, greatly reducing people's labor intensity and saving labor costs.

[0003] In a floor sweeper, one of the core modules is its mop module. The mop module is the module for performing mopping. In existing floor sweeper products, it generally has a lifting function. The mop modules of existing floor sweepers are diverse. However, the mopping modules of existing floor sweepers generally have problems such as complex structures, difficult assembly, and complex production processes, which in turn lead to high production costs, low production efficiency, and affect the performance stability of the floor sweeper.

[0004] Therefore, the purpose of the present utility model is to provide a new technical solution to solve the existing technical defects. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the present utility model provides a mop lifting module and a floor sweeper for a floor sweeper, which solve the technical defects of the existing products such as complex structure, complex process, difficult production, high cost, and low efficiency.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0007] A mop lifting module for a floor sweeper includes a gearbox and a driving motor. A middle rotating shaft and a driving shaft are installed inside the gearbox. A double gear is arranged on the middle rotating shaft. A worm is arranged on the output shaft of the driving motor. The large tooth part of the double gear is a worm gear. The worm gear meshes with the worm to form a worm and worm gear structure. A driving gear is arranged on the driving shaft. The driving gear meshes with the small tooth part of the double gear. The driving motor can drive the driving shaft to rotate through the worm, the double gear, and the driving gear. A damping sleeve is arranged at the bottom of the gearbox. A lifting sleeve is arranged inside the damping sleeve. The outer wall of the lifting sleeve is in contact connection with the damping sleeve. An internal thread sleeve is fixedly arranged inside the lifting sleeve. Internal threads are arranged on the inner wall of the internal thread sleeve. A lifting driving sleeve is arranged at the lower end of the driving shaft. The lifting sleeve is used to connect the mop. The lower end of the lifting driving sleeve extends into the internal thread sleeve, and external threads are arranged on the part of the outer wall extending into the internal thread sleeve. The external threads cooperate with the internal threads to make the internal thread sleeve and the lifting driving sleeve in threaded connection.

[0008] As a further improvement of the above technical solution, the inner threaded sleeve is provided with an inner threaded limiting block on the inner wall, and the inner threaded limiting block is used to limit the rotation of the external thread in the internal thread. When the lifting sleeve descends to a preset position, the inner threaded limiting block and one end of the external thread are mutually limited to restrict the relative rotation between the inner threaded sleeve and the lifting drive sleeve;

[0009] As a further improvement of the above technical solution, a rising-in-place limiting block is provided at the bottom inside the lifting sleeve, and a bottom limiting block is provided at the bottom of the lifting drive sleeve. The bottom limiting block and the rising-in-place limiting block are mutually adapted. After the lifting sleeve rises to a preset position, the rising-in-place limiting block and the bottom limiting block are mutually limited to restrict the relative rotation between the lifting sleeve and the lifting drive sleeve.

[0010] As a further improvement of the above technical solution, a through groove penetrating inside and outside is formed on the side of the damping sleeve, and a damping elastic sheet is arranged in the through groove. The inner wall of the damping elastic sheet is in frictional contact with the outer wall of the lifting sleeve and forms a damping force on the lifting sleeve.

[0011] As a further improvement of the above technical solution, a damping sleeve connection buckle is arranged on the damping sleeve, and a damping sleeve connection card adapted to the damping sleeve connection buckle is arranged on the gear box. The damping sleeve connection buckle is buckled on the damping sleeve connection card and fixes the damping sleeve to be installed at the bottom of the gear box;

[0012] As a further improvement of the above technical solution, the gear box includes an upper box body and a lower box body. A gear box connection buckle is arranged on the outer wall of the upper box body, and a gear box connection card cooperating with the gear box connection buckle is arranged on the outer wall of the lower box body. The gear box connection card is clamped on the gear box connection buckle and fixedly connects the upper box body and the lower box body to form the gear box.

[0013] As a further improvement of the above technical solution, the lifting sleeve includes an outer sleeve and an inner sleeve arranged inside the outer sleeve. The outer sleeve and the inner sleeve are connected at the bottom by a bottom connecting plate, and a sandwich inner cavity is formed between the inner wall of the outer sleeve and the outer wall of the inner sleeve.

[0014] As a further improvement of the above technical solution, the inner threaded sleeve is arranged on the inner wall of the outer sleeve, the lower part of the lifting drive sleeve extends into the sandwich inner cavity, and the inner sleeve extends into the inner cavity of the lower part of the lifting drive sleeve.

[0015] As a further improvement of the above technical solution, an internal thread sleeve connection card slot is provided on the inner wall of the outer sleeve, and an internal thread sleeve connection buckle matching the internal thread sleeve connection card slot is provided on the outer wall of the internal thread sleeve. The internal thread sleeve connection buckle is snapped into the internal thread sleeve connection card slot so that the internal thread sleeve and the outer sleeve are mutually clamped;

[0016] As a further improvement of the above technical solution, a slope structure corresponding to the internal thread sleeve connection card slot is provided at the upper mouth position of the outer sleeve. The slope structure is used for the internal thread sleeve connection buckle to be snapped into the internal thread sleeve connection card slot from the slope structure;

[0017] As a further improvement of the above technical solution, a longitudinal limiting groove is provided on the inner wall of the outer sleeve, and a longitudinal limiting protrusion matching the longitudinal limiting groove is provided on the outer wall of the internal thread sleeve. The longitudinal limiting protrusion is correspondingly inserted into the longitudinal limiting groove so that the outer sleeve and the internal thread sleeve are radially positioned with each other;

[0018] As a further improvement of the above technical solution, a bottom limiting protrusion is provided at the bottom of the inner wall of the outer sleeve, and a bottom limiting notch matching the bottom limiting protrusion is provided at the bottom of the internal thread sleeve. The bottom limiting protrusion is correspondingly inserted into the bottom limiting notch so that the outer sleeve and the internal thread sleeve are positioned with each other.

[0019] As a further improvement of the above technical solution, the lifting drive sleeve includes a large-diameter portion and a small-diameter portion. The large-diameter portion extends into the lifting sleeve, the external thread is provided on the outer wall of the large-diameter portion, the small-diameter portion extends into the gearbox, and the drive shaft is inserted into the small-diameter portion and fixedly connected to the small-diameter portion.

[0020] As a further improvement of the above technical solution, a bearing installation position is provided inside the gearbox, a bearing is installed at the bearing installation position, and the small-diameter portion of the lifting drive sleeve is installed on the inner ring of the bearing.

[0021] The present utility model also provides:

[0022] A floor sweeper, which includes the floor sweeper mop lifting module described above.

[0023] The beneficial effects of the present utility model are as follows: The present utility model provides a floor sweeper mop lifting module and a floor sweeper. The floor sweeper mop lifting module and the floor sweeper realize the lifting function through the combined structure formed by the damping sleeve, the lifting sleeve, the internal thread sleeve and the lifting drive sleeve, effectively simplifying the structure and reducing the complexity of the process compared with the existing products, thereby reducing the production difficulty, being beneficial to improving the production efficiency, having lower production costs, and the performance of the product being more stable and reliable.

[0024] In summary, the mop lifting module and the floor sweeper of this type solve the technical defects of existing products, such as complex structure, complex process, high production difficulty, high cost, and low efficiency. Description of the Drawings

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 is the assembly schematic diagram of the present utility model;

[0027] Figure 2 is another assembly schematic diagram of the present utility model;

[0028] Figure 3 is Figure 2 the cross-sectional view in the A-A direction of

[0029] Figure 4 is the assembly schematic diagram of the present utility model after removing the upper box body;

[0030] Figure 5 is the structural schematic diagram of the damping sleeve in the present utility model;

[0031] Figure 6 is the structural schematic diagram of the lifting sleeve in the present utility model;

[0032] Figure 7 is another structural schematic diagram of the lifting sleeve in the present utility model;

[0033] Figure 8 is Figure 7 the cross-sectional view in the B-B direction of

[0034] Figure 9 is the structural schematic diagram of the internal thread sleeve in the present utility model;

[0035] Figure 10 is the structural schematic diagram of the lifting drive sleeve in the present utility model. Detailed Embodiments

[0036] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / linkage relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the creation of the present utility model can be interactively combined on the premise of not conflicting with each other. Refer to Figure 1-10 。

[0037] A mopping cloth lifting module for a floor sweeper, comprising a gear box 1 and a driving motor 2. Inside the gear box 1, an intermediate rotating shaft 31 and a driving shaft 32 are installed. A double-link gear 311 is arranged on the intermediate rotating shaft 31. A worm 211 is arranged on the output shaft 21 of the driving motor 2. The large tooth part of the double-link gear 311 is a worm gear. The worm gear meshes with the worm 211 to form a worm and worm gear structure. A driving gear 321 is arranged on the driving shaft 32. The driving gear 321 meshes with the small tooth part of the double-link gear 311. The driving motor 2 can drive the driving shaft 32 to rotate through the worm 211, the double-link gear 311 and the driving gear 321. A damping sleeve 4 is arranged at the bottom of the gear box 1. An elevating sleeve 5 is arranged inside the damping sleeve 4. The outer wall of the elevating sleeve 5 is in contact connection with the damping sleeve 4. An internal thread sleeve 6 is fixedly arranged inside the elevating sleeve 5. An internal thread 61 is arranged on the inner wall of the internal thread sleeve 6. A lifting driving sleeve 7 is arranged at the lower end of the driving shaft 32. The lower end of the lifting driving sleeve 7 extends into the inside of the internal thread sleeve 6, and an external thread 71 is arranged on the outer wall of the part extending into the inside of the internal thread sleeve 6. The external thread 71 cooperates with the internal thread 61 to make the internal thread sleeve 6 and the lifting driving sleeve 7 in threaded connection.

[0038] Specifically in application, the lifting sleeve 5 is used to connect the mop. After the floor sweeper starts working, when the lifting task of the mop needs to be performed, the driving motor 2 drives the intermediate rotating shaft 31 to rotate through the worm 211 and the worm gear. The intermediate rotating shaft 31 drives the driving shaft 32 to rotate through the large tooth part of the double gear 311 and the driving gear 321. The driving shaft 32 drives the lifting driving sleeve 7 to rotate. Since there is a damping effect between the damping sleeve 4 and the lifting sleeve 5, when the lifting driving sleeve 7 rotates, the lifting sleeve 5 will not rotate synchronously with the lifting driving sleeve 7, and there is relative rotation between the two. At this time, through the matching structure of the external thread 71 and the internal thread 61, the relative lifting movement of the internal thread sleeve 6 and the lifting driving sleeve 7 can be realized. Since the internal thread sleeve 6 is fixedly installed inside the lifting sleeve 5, when the internal thread sleeve 6 moves up and down, the lifting sleeve 5 moves up and down synchronously, so the mop connected to the lifting sleeve 5 also realizes the lifting movement.

[0039] In an embodiment, the internal thread sleeve 6 is provided with an internal thread limit block 62 on the inner wall. The internal thread limit block 62 is used to limit the rotation of the external thread 71 in the internal thread 61. When the lifting sleeve 5 descends to a preset position, the internal thread limit block 62 and one end of the external thread 71 are mutually limited to prevent the relative rotation of the internal thread sleeve 6 and the lifting driving sleeve 7. At this time, the lifting sleeve 5 descends to the lowest position, and the mop is at the mopping height. Due to the limiting effect of the internal thread limit block 62, the lifting driving sleeve 7, the lifting sleeve 5, and the internal thread sleeve 6 are fixed to each other and will not rotate relatively. At this time, the driving shaft 32 continuously drives the lifting driving sleeve 7 to rotate, and the lifting driving sleeve 7 drives the internal thread sleeve 6 and the lifting sleeve 5 to rotate after overcoming the damping effect of the damping sleeve 4. The lifting sleeve 5 drives the mop to rotate during the rotation process, realizing the mopping function.

[0040] An upward position limit block 54 is provided at the bottom inside the lifting sleeve 5, and a bottom limit block 72 is provided at the bottom of the lifting driving sleeve 7. The bottom limit block 72 and the upward position limit block 54 are mutually adapted. When the lifting sleeve 5 rises to a preset position, the upward position limit block 54 and the bottom limit block 72 are mutually limited to prevent the relative rotation of the lifting sleeve 5 and the lifting driving sleeve 7. Due to the mutual limiting effect of the bottom limit block 72 and the upward position limit block 54, after the lifting sleeve 5 rises to the highest position, the mop rises to a position away from the ground, and the lifting driving sleeve 7 and the lifting sleeve 5 are fixed to each other and will not rotate relatively. At this time, the driving shaft 32 continuously drives the lifting driving sleeve 7 to rotate, and the lifting driving sleeve 7 drives the lifting sleeve 5 to rotate after overcoming the damping effect of the damping sleeve 4.

[0041] In some embodiments, a through groove 41 penetrating inside and outside is formed on the side of the damping sleeve 4, and a damping elastic piece 42 is arranged in the through groove 41. The inner wall of the damping elastic piece 42 is in frictional contact with the outer wall of the lifting sleeve 5 and forms a damping force on the lifting sleeve 5. Specifically, in this embodiment, the damping elastic piece 42 includes a contact part in the middle and elastic parts on both sides. The contact part is in contact with the outer wall of the lifting sleeve 5, and the elastic parts provide a tension elastic force for the contact part. By adjusting the magnitude of the elastic force of the elastic parts, the contact pressure between the contact part and the lifting sleeve 5 can be adjusted, and further the damping magnitude can be adjusted. Specifically, when implementing, a suitable damping value can be set according to needs.

[0042] In some embodiments, a damping sleeve connection buckle 43 is arranged on the damping sleeve 4, and a damping sleeve connection card 13 adapted to the damping sleeve connection buckle 43 is arranged on the gear box 1. The damping sleeve connection buckle 43 is buckled on the damping sleeve connection card 13 and the damping sleeve 4 is fixedly installed at the bottom of the gear box 1; the gear box 1 includes an upper box body 11 and a lower box body 12. A gear box connection buckle 111 is arranged on the outer wall of the upper box body 11, and a gear box connection card 121 adapted to the gear box connection buckle 111 is arranged on the outer wall of the lower box body 12. The gear box connection card 121 is clamped on the gear box connection buckle 111 and the upper box body 11 and the lower box body 12 are fixedly connected to form the gear box 1. The gear box 1 formed by the upper box body 11 and the lower box body 12 has a gear box inner cavity, and the worm 211, the double gear 311, the driving gear 321, the intermediate rotating shaft 31 and the driving shaft 32 are all arranged in the gear box inner cavity.

[0043] In some embodiments, the lifting sleeve 5 includes an outer sleeve 51 and an inner sleeve 52 arranged inside the outer sleeve 51. The outer sleeve 51 and the inner sleeve 52 are connected at the bottom by a bottom connecting plate 53, and a sandwich inner cavity 50 is formed between the inner wall of the outer sleeve 51 and the outer wall of the inner sleeve 52. The internal thread sleeve 6 is arranged on the inner wall of the outer sleeve 51, the lower part of the lifting drive sleeve 7 extends into the sandwich inner cavity 50, and the inner sleeve 52 extends into the inner cavity at the lower part of the lifting drive sleeve 7. Specifically, the inner sleeve 52 has an internal hexagonal connection hole 59, and the internal hexagonal connection hole 59 is used for connecting the mounting rod of the mop.

[0044] In some embodiments, an internal thread sleeve connection card slot 55 is arranged on the inner wall of the outer sleeve 51, and an internal thread sleeve connection buckle 63 adapted to the internal thread sleeve connection card slot 55 is arranged on the outer wall of the internal thread sleeve 6. The internal thread sleeve connection buckle 63 is buckled into the internal thread sleeve connection card slot 55 and the internal thread sleeve 6 and the outer sleeve 51 are mutually clamped;

[0045] In some embodiments, the outer sleeve 51 is provided with a ramp structure 56 at the position of its upper opening, which corresponds to the internal thread sleeve connection card slot 55. The ramp structure 56 is used for the internal thread sleeve connection buckle 63 to be buckled into the internal thread sleeve connection card slot 55 from the ramp structure 56. The ramp structure 56 can reduce the installation difficulty and improve the assembly efficiency.

[0046] In some embodiments, the inner wall of the outer sleeve 51 is provided with a longitudinal limiting groove 57, and the outer wall of the internal thread sleeve 6 is provided with a longitudinal limiting protrusion 64 that cooperates with the longitudinal limiting groove 57. The longitudinal limiting protrusion 64 is correspondingly inserted into the longitudinal limiting groove 57 so that the outer sleeve 51 and the internal thread sleeve 6 are radially positioned relative to each other.

[0047] In some embodiments, a bottom limiting protrusion 58 is provided at the bottom of the inner wall of the outer sleeve 51, and a bottom limiting notch 65 that cooperates with the bottom limiting protrusion 58 is provided at the bottom of the internal thread sleeve 6. The bottom limiting protrusion 58 is correspondingly inserted into the bottom limiting notch 65 so that the outer sleeve 51 and the internal thread sleeve 6 are positioned relative to each other.

[0048] In some embodiments, the lifting drive sleeve 7 includes a large-diameter portion 701 and a small-diameter portion 702. The large-diameter portion 701 extends into the lifting sleeve 5, and the external thread 71 is provided on the outer wall of the large-diameter portion 701. The small-diameter portion 702 extends into the gearbox 1, and the drive shaft 32 is inserted into the small-diameter portion 702 and fixedly connected to the small-diameter portion 702. A bearing installation position 10 is provided inside the gearbox 1, and a bearing 8 is installed at the bearing installation position 10. The small-diameter portion 702 of the lifting drive sleeve 7 is installed in the inner ring of the bearing 8.

[0049] Based on the above-mentioned floor sweeping robot mop lifting module, the present invention also provides:

[0050] A floor sweeping robot, which includes the above-mentioned floor sweeping robot mop lifting module.

[0051] The above is a specific description of the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A mop lifting module for a sweeping machine, characterized in that: The invention comprises a gear box (1) and a driving motor (2), wherein an intermediate rotating shaft (31) and a driving shaft (32) are installed inside the gear box (1), a double gear (311) is arranged on the intermediate rotating shaft (31), an output shaft (21) of the driving motor (2) is arranged on a worm (211), a large tooth portion of the double gear (311) is a worm wheel, the worm wheel and the worm (211) mesh with each other to form a worm gear structure, a driving gear (321) is arranged on the driving shaft (32), the driving gear (321) and the small tooth portion of the double gear (311) mesh with each other, the driving motor (2) can drive the driving shaft (32) to rotate through the worm (211), the double gear (311) and the driving gear (321), and the gear box (1) A damping sleeve (4) is arranged at the bottom, a lifting sleeve (5) is arranged inside the damping sleeve (4), the outer wall of the lifting sleeve (5) is in contact with and connected to the damping sleeve (4), the lifting sleeve (5) is used to connect a mop, an internally threaded sleeve (6) is fixedly arranged inside the lifting sleeve (5), the inner wall of the internally threaded sleeve (6) is provided with an internal thread (61), a lifting drive sleeve (7) is arranged at the lower end of the driving shaft (32), the lower end of the lifting drive sleeve (7) extends into the interior of the internally threaded sleeve (6) and a portion of the outer wall extending into the interior of the internally threaded sleeve (6) is provided with an external thread (71), the external thread (71) and the internal thread (61) cooperate with each other so that the internally threaded sleeve (6) and the lifting drive sleeve (7) are threadedly connected.

2. The mop lifting module of a sweeping machine according to claim 1, characterized in that: The inner wall of the internal thread sleeve (6) is provided with an internal thread limit block (62), and the internal thread limit block (62) is used to limit the rotation of the external thread (71) in the internal thread (61). When the lifting sleeve (5) descends to a preset position, the internal thread limit block (62) and one end of the external thread (71) are mutually limited to limit the relative rotation of the internal thread sleeve (6) and the lifting drive sleeve (7); A rising position limit block (54) is provided at the bottom of the lifting sleeve (5), and a bottom limit block (72) is provided at the bottom of the lifting drive sleeve (7). The bottom limit block (72) and the rising position limit block (54) are adapted to each other. When the lifting sleeve (5) rises to a preset position, the rising position limit block (54) and the bottom limit block (72) are mutually limited to limit the relative rotation of the lifting sleeve (5) and the lifting drive sleeve (7).

3. The mop lifting module for a sweeping machine according to claim 1, characterized in that: The damping sleeve (4) is provided with a through slot (41) which penetrates inside and outside on the side thereof, and a damping spring sheet (42) is arranged in the through slot (41). The inner wall of the damping spring sheet (42) is in frictional contact with the outer wall of the lifting sleeve (5) and forms a damping force on the lifting sleeve (5).

4. The mop lifting module for a sweeping machine according to claim 1, characterized in that: The damping sleeve (4) is provided with a damping sleeve connecting buckle (43), and the gear box (1) is provided with a damping sleeve connecting card (13) adapted to the damping sleeve connecting buckle (43), and the damping sleeve connecting buckle (43) is buckled on the damping sleeve connecting card (13) so that the damping sleeve (4) is fixedly mounted on the bottom of the gear box (1); The gear box (1) comprises an upper box body (11) and a lower box body (12); the outer wall of the upper box body (11) is provided with a gear box connecting buckle (111); the outer wall of the lower box body (12) is provided with a gear box connecting card (121) that matches the gear box connecting buckle (111); the gear box connecting card (121) is engaged with the gear box connecting buckle (111) and enables the upper box body (11) and the lower box body (12) to be fixedly connected to form the gear box (1).

5. The mop lifting module for a sweeping machine according to claim 1, characterized in that: The lifting sleeve (5) comprises an outer sleeve (51) and an inner sleeve (52) arranged inside the outer sleeve (51); the outer sleeve (51) and the inner sleeve (52) are connected at the bottom via a bottom connecting plate (53); and an interlayer cavity (50) is formed between the inner wall of the outer sleeve (51) and the outer wall of the inner sleeve (52).

6. The mop lifting module for a sweeping machine according to claim 5, characterized in that: The internally threaded sleeve (6) is arranged on the inner wall of the outer sleeve (51), the lower part of the lifting drive sleeve (7) extends into the inner cavity of the interlayer (50), and the inner sleeve (52) extends into the inner cavity of the lower part of the lifting drive sleeve (7).

7. The mop lifting module for a sweeping machine according to claim 5, characterized in that: The inner wall of the outer sleeve (51) is provided with an internally threaded sleeve connecting groove (55), and the outer wall of the internally threaded sleeve (6) is provided with an internally threaded sleeve connecting buckle (63) matching the internally threaded sleeve connecting groove (55), and the internally threaded sleeve connecting buckle (63) is buckled into the internally threaded sleeve connecting groove (55) so that the internally threaded sleeve (6) and the outer sleeve (51) are mutually clamped; The outer sleeve (51) is provided with a ramp structure (56) at its upper opening, the position of which corresponds to the position of the internally threaded sleeve connecting groove (55), and the ramp structure (56) is used for the internally threaded sleeve connecting buckle (63) to buckle into the internally threaded sleeve connecting groove (55) from the ramp structure (56); The inner wall of the outer sleeve (51) is provided with a longitudinal limit groove (57), and the outer wall of the internally threaded sleeve (6) is provided with a longitudinal limit protrusion (64) matching the longitudinal limit groove (57), and the longitudinal limit protrusion (64) is correspondingly inserted into the longitudinal limit groove (57) so that the outer sleeve (51) and the internally threaded sleeve (6) are radially positioned with each other; A bottom limiting protrusion (58) is provided at the bottom of the inner wall of the outer sleeve (51), and a bottom limiting notch (65) matching the bottom limiting protrusion (58) is provided at the bottom of the internal threaded sleeve (6). The bottom limiting protrusion (58) is correspondingly inserted into the bottom limiting notch (65) so that the outer sleeve (51) and the internal threaded sleeve (6) are positioned relative to each other.

8. The mop lifting module for a sweeping machine according to claim 1, characterized in that: The lifting drive sleeve (7) comprises a large diameter portion (701) and a small diameter portion (702), the large diameter portion (701) extending into the interior of the lifting sleeve (5), the external thread (71) being arranged on the outer wall of the large diameter portion (701), the small diameter portion (702) extending into the interior of the gear box (1), and the drive shaft (32) being inserted into the interior of the small diameter portion (702) and fixedly connected to the small diameter portion (702).

9. The mop lifting module for a sweeping machine according to claim 8, characterized in that: A bearing mounting position (10) is provided inside the gear box (1), a bearing (8) is installed at the bearing mounting position (10), and the small diameter portion (702) of the lifting drive sleeve (7) is installed on the inner ring of the bearing (8).

10. A sweeping machine, characterized in that: The sweeping machine comprises the sweeping machine mop lifting module according to any one of claims 1-9.

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