CN112641408A

CN112641408A - Clean mop suitable for stair step

Info

Publication number: CN112641408A
Application number: CN202110003600.3A
Authority: CN
Inventors: 孙悦
Original assignee: Individual
Current assignee: Ningbo Neco Housewares Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-04-13
Anticipated expiration: 2041-01-04
Also published as: CN112641408B

Abstract

The invention discloses a cleaning mop suitable for stairs and steps, and relates to the technical field of cleaning supplies. The cleaning device comprises a first cleaning module, a second cleaning module and a connecting mechanism for connecting the first cleaning module and the second cleaning module, wherein the first cleaning module comprises a first cleaning plate, a second cleaning plate and a rotary connecting piece; the first cleaning module and the second cleaning module have the same structural characteristics, and an elastic element is connected between the first cleaning module and the second cleaning module; the connecting mechanism comprises a supporting rod and a connecting seat, and two opposite sides of the connecting seat are respectively and rotatably connected with a supporting rod; and a push-pull rod is fixed on the connecting seat and pushes the push-pull rod to enable the first cleaning plate and the cleaning plate to move towards two sides. The cleaning module is composed of a first cleaning plate and a second cleaning plate which are rotatably arranged on the rotating connecting piece, mop cloth arranged on the first cleaning plate and the second cleaning plate is tightly attached to the step surface of the stair, and the step surface of the stair is cleaned by pushing the push-pull rod.

Description

Clean mop suitable for stair step

Technical Field

The invention belongs to the technical field of cleaning supplies, and particularly relates to a cleaning mop suitable for stairs and steps.

Background

The clean ground is the indispensable work in people's daily life and the work, and the most common method on clean ground is exactly cleaned through the mop, and in order to improve work efficiency, improves the clean area of single work, generally uses plate-type cleaner, and this kind of cleaner includes rectangle bottom plate and the handle of setting on the bottom plate, and the bottom plate lower surface sets up cleaning cloth, because the bottom plate is the rectangle, the increase of the clean area of single, and the efficiency on clean ground is higher.

Adopt current mop to carry out the in-process of trying to best to stair, can only carry out the plane and carry out single cleanness, be not convenient for clear up the right angle face that the step constitutes, current mop promotes the contained angle department to stair with the rubbish on surface at clear in-process in addition, is not convenient for collect the clearance, also can not be with the attachment clean up on the stair.

Disclosure of Invention

The invention aims to provide a cleaning mop suitable for stair steps, which is formed by a cleaning module and a cleaning plate I and a cleaning plate II which are rotatably arranged on a rotating connecting piece, mop cloth arranged on the cleaning plate I and the cleaning plate II is tightly attached to the stair step surface, and an included angle between the two arranged support rods is changed by pushing a push-pull rod, so that the cleaning module I and the cleaning module II are separated, the stair step surface is cleaned, and the existing problems are solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a cleaning mop suitable for stair steps, which comprises a first cleaning module, a second cleaning module and a connecting mechanism for connecting the first cleaning module with the second cleaning module, wherein the first cleaning module comprises a first cleaning plate, a second cleaning plate and a rotary connecting piece, the middle part of the rotary connecting piece is a central block, two opposite end faces of the central block are respectively provided with a shaft body in an outward extending manner, the end part of the first cleaning plate and the end part of the second cleaning plate are respectively rotatably arranged on two different shaft bodies, and meanwhile, the central block is also provided with a connecting block in an upward extending manner; the first cleaning module and the second cleaning module have the same structural characteristics, and an elastic element is connected between the first cleaning module and the second cleaning module; the connecting mechanism comprises a supporting rod and a connecting seat, two opposite sides of the connecting seat are respectively and rotatably connected with a supporting rod, and the other end of the supporting rod is rotatably arranged on the connecting block; and a push-pull rod is fixed on the connecting seat and pushes the push-pull rod to enable the first cleaning plate and the first cleaning plate to move towards two sides.

Furthermore, the center block is provided with a cavity, the bottom surface of the cavity is provided with guide holes which are vertically distributed, and a scraper which stretches along the guide holes is arranged in the cavity; the top of the scraper is provided with a toothed ring, and a first spring for pushing the scraper to move upwards is sleeved on the scraper; the outer side surface of the central block is provided with a through groove communicated with the cavity, the first cleaning plate is provided with a first cam extending into the cavity, the second cleaning plate is provided with a second cam extending into the cavity, and the first cam and the second cam are respectively meshed and installed on two sides of the toothed ring.

Furthermore, a cavity is formed in the position, close to the outer side, of the first cleaning plate, a plurality of through holes communicated with the outside are formed in one side wall of the cavity, and convex columns extending out of the outside are installed in the through holes; a connecting rod is rotatably arranged in the cavity, one end of the connecting rod is hinged with a brush body, and the other end of the connecting rod is in contact with the end of the convex column; the middle of the brush body is provided with a moving groove, a cylinder sliding along the moving groove is arranged in the cavity, one side of the cylinder is provided with a push block, and one side of the push block is provided with a second spring for pushing the brush body to retract.

Furthermore, a mounting groove is formed in the position, close to the inner side edge, of the cleaning plate, a roller group is rotatably mounted in the mounting groove, and an eccentric wheel which synchronously rotates is mounted on a rotating shaft of the roller group; install in the mounting groove and shovel the mechanism, it is a bent plate body structure to shovel the mechanism, it is equipped with and eccentric wheel complex recess to shovel mechanism one side, it articulates on one side of mounting groove to shovel a side of mechanism, it connects on the other side of mechanism to shovel another side of mechanism through the rebound component to shovel another side of mechanism, it has a plurality of scrapers to shovel the equipartition on the lateral surface of mechanism.

Furthermore, the main board body of the first cleaning board and the main board body of the second cleaning board have the same structural characteristics, meanwhile, the upper connecting end of the first cleaning board and the upper connecting end of the second cleaning board are oppositely distributed, and a mop cloth is arranged between the cavity and the mounting groove.

Furthermore, the support rod comprises a connecting rod, a tension rod and a rotating seat, two connecting bayonets I are symmetrically arranged on the rotating seat, a connecting rod is rotatably arranged on one connecting bayonet I, a tension rod is rotatably arranged on the other connecting bayonet I, and the connecting rod is arranged on the outer side of the tension rod; and a second connecting bayonet is arranged on the bottom surface of the rotating seat.

Furthermore, the elastic element is a tension spring, two ends of the spring are respectively fixed on the two rotating connecting pieces, and the outer surface of the elastic element is provided with a protruding thorn structure.

Furthermore, the inner side surfaces of the first cleaning plate and the second cleaning plate are fixed on magnetic blocks, and magnetic poles between the magnetic blocks arranged on the first cleaning module and the magnetic blocks arranged on the second cleaning module are opposite.

The invention has the following beneficial effects:

1. the cleaning module comprises a first cleaning plate and a second cleaning plate which are rotatably installed on a rotating connecting piece, the first cleaning plate and the second cleaning plate can be turned upwards, so that mop cloth installed on the first cleaning plate and the second cleaning plate can be attached to the step surface of the stair, and an included angle between the two installed support rods is changed by pushing the push-pull rod, so that the first cleaning module and the second cleaning module are separated from each other, and the step surface of the stair is cleaned; the support rod is movably connected with the first cleaning module or the second cleaning module, so that the mop cloth is ensured to be always attached to the step surface of the stair, the cleaning effect is effectively improved, and the tension rod is arranged in the installed support rod, so that the support rod can be automatically reset after being opened, and the secondary cleaning work is facilitated; and the protruding thorn structure arranged on the elastic element finishes cleaning attachments on the inner side of the steps of the stair in the stretching or shrinking process of the elastic element connected between the first cleaning plate and the second cleaning plate.

2. The first cleaning plate and the second cleaning plate are arranged in a horizontal state under the condition of no stress, and the inner sides of the first cleaning module and the second cleaning module are provided with mutually attracted magnetic blocks, so that an integral structure can be formed, and the plane can be conveniently cleaned; in addition, the rotating seat is rotatably connected with the connecting block, so that the push-pull rod and the cleaning module form different angles, and different cleaning requirements are met.

3. The cleaning module I or the cleaning module II is internally provided with the scraper, the cleaning plate I and the cleaning plate II are provided with the cam I and the cam II which are meshed with the toothed ring on the scraper, when the cleaning plate I and the cleaning plate II are turned upwards, the scraper is pushed to extend out, the end part of the scraper is abutted against the seam of the stair step surface, and meanwhile, the scraper moves along with the cleaning module I or the cleaning module II to clean the garbage hidden in the seam of the stair step surface, so that the cleaning effect is effectively improved.

4. The outer side surface of the first cleaning plate or the second cleaning plate is provided with the plurality of convex columns, when the outer side surface of the first cleaning plate or the second cleaning plate collides with the side edge of the stair step, the installed convex columns retract into the cavity, the connecting rod is pushed to rotate, the brush body connected with the tail end of the connecting rod extends out and rotates inwards under the driving of the connecting rod, garbage is prevented from being pushed into the side seam of the stair step, and the garbage is convenient to collect and clean.

5. The inner side edge of the first cleaning plate or the second cleaning plate is provided with the eccentric structure, the roller group arranged on the first cleaning plate or the second cleaning plate intermittently ejects out the arranged shoveling mechanism in the rotating process, so that a scraper on the shoveling mechanism can conveniently impact the bottom surface, attachments on the ground can be conveniently shoveled and cleaned, and meanwhile, the rebounding element arranged on one side of the shoveling mechanism can realize resetting rebounding, so that the repeated work can be conveniently realized.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the expanded structure of the present invention;

FIG. 2 is a schematic view of a collapsed configuration of the present invention;

FIG. 3 is a schematic side view of a first cleaning plate of the present invention;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3 according to the present invention;

FIG. 5 is a side view of a first cleaning plate of the present invention;

FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 5 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C according to the present invention;

FIG. 8 is a schematic view of the bottom structure of the first cleaning plate of the present invention;

FIG. 9 is a schematic cross-sectional view taken along line D-D of FIG. 8 in accordance with the present invention;

FIG. 10 is a schematic view of a rotary base according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-cleaning module I, 11-cleaning plate I, 111-cam I, 112-cavity, 113-mop, 114-mounting groove, 12-cleaning plate II, 121-cam II, 13-rotation connecting piece, 131-center block, 132-connecting block, 133-shaft body, 134-cavity, 135-guide hole, 14-scraping plate, 141-toothed ring, 15-spring I, 16-roller group, 161-removing mechanism, 162-scraping plate, 163-eccentric wheel, 164-rebound element, 17-convex column, 18-connecting rod, 19-brush body, 191-moving groove, 192-pushing block, 193-spring II, 2-cleaning module II, 3-supporting rod, 31-connecting rod, 32-tension rod, 33-rotation seat, 331-connecting bayonet I, 332-connecting bayonet II, 4-connecting seat, 5-push-pull rod, 6-elastic element and 7-magnetic block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1-10, the invention relates to a cleaning mop suitable for stairs, comprising a first cleaning module 1, a second cleaning module 2 and a connecting mechanism for connecting the first cleaning module 1 and the second cleaning module 2, wherein the first cleaning module 1 comprises a first cleaning plate 11, a second cleaning plate 12 and a rotary connecting piece 13, the middle part of the rotary connecting piece 13 is a central block 131, two opposite end surfaces of the central block 131 are respectively and outwardly extended with a shaft body 133, the end parts of the first cleaning plate 11 and the second cleaning plate 12 are respectively and rotatably mounted on two different shaft bodies 133, and the central block 131 is also upwardly extended with a connecting block 132; the cleaning module I1 and the cleaning module II 2 have the same structural characteristics, and an elastic element 6 is connected between the cleaning module I1 and the cleaning module II 2; the connecting mechanism comprises a supporting rod 3 and a connecting seat 4, two opposite sides of the connecting seat 4 are respectively and rotatably connected with the supporting rod 3, and the other end of the supporting rod 3 is rotatably arranged on the connecting block 132; a push-pull rod 5 is fixed on the connecting seat 4, and the push-pull rod 5 is pushed to enable the first cleaning plate 11 and the second cleaning plate 12 to move towards two sides.

The installed cleaning plate I11 and the cleaning plate II 12 are in a horizontal state under the condition of no stress, and the inner sides of the cleaning module I1 and the cleaning module II 2 are provided with the magnetic blocks 7 which are mutually attracted, so that an integral structure can be formed, and the plane can be conveniently cleaned; in addition, the rotating seat 33 is rotatably connected with the connecting block 132, so that the push-pull rod and the cleaning module form different angles, and different cleaning requirements are met.

The cleaning module is composed of a first cleaning plate 11 and a second cleaning plate 12 which are rotatably installed on a rotating connecting piece 13, the first cleaning plate 11 and the second cleaning plate 12 which are installed can be turned upwards, so that mop cloth 113 installed on the first cleaning plate 11 and the second cleaning plate 12 is attached to the step surface of the stair, the included angle between the two installed support rods 3 is changed by pushing the push-pull rod 5, the first cleaning module 1 and the second cleaning module 2 are separated, and the step surface of the stair is cleaned; the supporting rod 3 is movably connected with the cleaning module I1 or the cleaning module II 2, so that the mop is ensured to be always attached to the step surface of the stair, the cleaning effect is effectively improved, the tension rod 32 is arranged in the installed supporting rod 3, the automatic reset of the opened supporting rod 3 is realized, and the secondary cleaning work is convenient; and in the process of stretching or contracting the elastic element 6 connected between the first cleaning plate 11 and the second cleaning plate 12, the protruding structure arranged on the elastic element 6 finishes cleaning attachments on the inner side of the steps of the stair.

Further, the central block 131 is provided with a cavity 134, the bottom surface of the cavity 134 is provided with vertically distributed guide holes 135, and the cavity 134 is internally provided with a scraper 14 which extends and retracts along the guide holes 135; the top of the scraper 14 is provided with a toothed ring 141, and the scraper 14 is sleeved with a first spring 15 for pushing the scraper 14 to move upwards; the outer side surface of the central block 131 is provided with a through groove communicated with the cavity 134, the first cleaning plate 11 is provided with a first cam 111 extending into the cavity 134, the second cleaning plate 12 is provided with a second cam 121 extending into the cavity 134, and the first cam 111 and the second cam 121 are respectively meshed and installed on two sides of the gear ring 141.

Furthermore, a cavity 112 is formed in the position, close to the outer side, of the first cleaning plate 11, a plurality of through holes communicated with the outside are formed in one side wall of the cavity 112, and convex columns 17 extending out of the outside are installed in the through holes; a connecting rod 18 is rotatably mounted in the cavity 112, one end of the connecting rod 18 is hinged with a brush body 19, and the other end of the connecting rod 18 is contacted with the end of the convex column 17; the middle of the brush body 19 is provided with a moving groove 191, a cylinder sliding along the moving groove 191 is arranged in the cavity 112, one side of the cylinder is provided with a push block 192, and one side of the push block 192 is provided with a second spring 193 for pushing the brush body 19 to retract.

Furthermore, a mounting groove 114 is formed in the first cleaning plate 11 near the inner side edge, a roller group 16 is rotatably mounted in the mounting groove 114, and an eccentric wheel 163 which rotates synchronously is mounted on a rotating shaft of the roller group 16; the shoveling mechanism 161 is installed in the installation groove 114, the shoveling mechanism 161 is a curved plate structure, a groove matched with the eccentric wheel 163 is arranged on one side of the shoveling mechanism 161, one side of the shoveling mechanism 161 is hinged to one side of the installation groove 114, the opposite other side of the shoveling mechanism 161 is connected to the other side of the shoveling mechanism 161 through a springback element 164, and a plurality of scrapers 162 are uniformly distributed on the outer side of the shoveling mechanism 161;

install eccentric structure on the inboard edge of cleaning sheet one 11 or cleaning sheet two 12, install the gyro wheel group on cleaning sheet one 11 or cleaning sheet two 12 and remove the ejecting that mechanism 161 is interrupted with the installation at the pivoted in-process, be convenient for realize that scraper 162 on the mechanism 161 strikes the bottom surface, be convenient for carry out the shovel clearance to subaerial attachment, the rebound component 164 of the mechanism 161 one side installation of relieving simultaneously realizes reseing the resilience.

The structural characteristics of the main board bodies of the first cleaning board 11 and the second cleaning board 12 are the same, meanwhile, the connecting end on the first cleaning board 11 is oppositely connected with the second cleaning board 12, and a mop cloth 113 is arranged between the cavity 112 and the mounting groove 114.

A first cleaning module 1 or a second cleaning module 2 is internally provided with a scraper 14, a first cam 111 and a second cam 112 which are meshed with a toothed ring on the scraper 14 are arranged on the first cleaning plate 11 and the second cleaning plate 12, when the first cleaning plate 11 and the second cleaning plate 12 are turned upwards, the scraper 14 is pushed to extend, the end part of the scraper 14 is abutted against a seam of a stair step surface, and meanwhile, the scraper 14 moves along with the first cleaning module 1 or the second cleaning module 2 to clean garbage hidden in the seam of the stair step surface, so that the cleaning effect is effectively improved; the outer side surfaces of the first cleaning plate 11 or the second cleaning plate 12 are provided with the plurality of convex columns 17, when the outer side surfaces of the first cleaning plate 11 or the second cleaning plate 12 collide with the side edges of the stair steps, the installed convex columns 17 retract into the cavity 112, the connecting rod 18 is pushed to rotate, the brush body 19 connected with the tail end of the connecting rod 18 stretches out under the driving of the connecting rod 18 and rotates towards the inner side, garbage is prevented from being pushed to the side seams of the stair steps, and the garbage can be collected and cleaned conveniently.

The supporting rod 3 comprises a connecting rod 31, a tension rod 32 and a rotating seat 33, two connecting bayonets I331 are symmetrically arranged on the rotating seat 33, a connecting rod 31 is rotatably mounted on one connecting bayonets I331, a tension rod 32 is rotatably mounted on the other connecting bayonets I331, and the connecting rod 31 is mounted on the outer side of the tension rod 32; the bottom surface of the rotating seat 33 is provided with a second connecting bayonet 332.

The elastic element 6 is a tension spring, two ends of the spring are respectively fixed on the two rotary connecting pieces 13, and the outer surface of the elastic element 6 is provided with a protruding thorn structure; the inner side surfaces of the first cleaning plate 11 and the second cleaning plate 12 are fixed on the magnetic blocks 7, and the magnetic poles between the magnetic blocks 7 arranged on the first cleaning module 1 and the magnetic blocks 7 arranged on the second cleaning module 2 are opposite.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a clean mop suitable for stair step, includes clean module one (1), clean module two (2) and is used for clean module one (1) and the coupling mechanism that clean module two (2) are connected, its characterized in that:

the cleaning module I (1) comprises a cleaning plate I (11), a cleaning plate II (12) and a rotating connecting piece (13), the middle part of the rotating connecting piece (13) is a central block (131), two opposite end faces of the central block (131) are respectively provided with a shaft body (133) in an outward extending mode, the end part of the cleaning plate I (11) and the end part of the cleaning plate II (12) are respectively rotatably installed on two different shaft bodies (133), and meanwhile, the central block (131) is also provided with a connecting block (132) in an upward extending mode;

the cleaning module I (1) and the cleaning module II (2) have the same structural characteristics, and an elastic element (6) is connected between the cleaning module I (1) and the cleaning module II (2);

the connecting mechanism comprises a supporting rod (3) and a connecting seat (4), two opposite sides of the connecting seat (4) are respectively and rotatably connected with the supporting rod (3), and the other end of the supporting rod (3) is rotatably arranged on the connecting block (132);

and a push-pull rod (5) is fixed on the connecting seat (4), and the push-pull rod (5) is pushed to enable the first cleaning plate (11) and the second cleaning plate (12) to move towards two sides.

2. The cleaning mop for the stair steps as claimed in claim 1, wherein the central block (131) is provided with a cavity (134), the bottom surface of the cavity (134) is provided with vertically distributed guide holes (135), and scrapers (14) which stretch along the guide holes (135) are installed in the cavity (134);

the top of the scraper (14) is provided with a toothed ring (141), and meanwhile, a first spring (15) for pushing the scraper (14) to move upwards is sleeved on the scraper (14);

the cleaning device is characterized in that a through groove communicated with the cavity (134) is formed in the outer side face of the central block (131), a first cam (111) extending into the cavity (134) is arranged on the first cleaning plate (11), a second cam (121) extending into the cavity (134) is arranged on the second cleaning plate (12), and the first cam (111) and the second cam (121) are respectively installed on two sides of the toothed ring (141) in a meshed mode.

3. The cleaning mop suitable for the stair steps as claimed in claim 1 or 2, wherein the first cleaning plate (11) is provided with a cavity (112) near the outer side, a side wall of the cavity (112) is provided with a plurality of through holes communicated with the outside, and the through holes are internally provided with convex columns (17) extending out of the outside;

a connecting rod (18) is rotatably mounted in the cavity (112), one end of the connecting rod (18) is hinged with a brush body (19), and the other end of the connecting rod (18) is in contact with the end of the convex column (17);

a moving groove (191) is formed in the middle of the brush body (19), a cylinder sliding along the moving groove (191) is arranged in the cavity (112), a push block (192) is installed on one side of the cylinder, and a second spring (193) for pushing the brush body (19) to retract is installed on one side of the push block (192).

4. The cleaning mop suitable for the stair steps as claimed in claim 1 or 2, wherein a mounting groove (114) is formed in the first cleaning plate (11) close to the inner side edge, a roller group (16) is rotatably mounted in the mounting groove (114), and a rotating shaft of the roller group (16) is provided with a synchronously rotating eccentric wheel (163);

install in mounting groove (114) and shovel mechanism (161), it is a curved plate body structure to shovel mechanism (161), shovel mechanism (161) one side be equipped with eccentric wheel (163) complex recess, it articulates on one side of mounting groove (114) to shovel one side of mechanism (161), shovel the other side of mechanism (161) relatively and connect on the other side of shovel mechanism (161) through resilience component (164), the equipartition has a plurality of scrapers (162) on the lateral surface of shovel mechanism (161).

5. The cleaning mop for the stair steps as claimed in claim 4, wherein the structural features of the main body of the first cleaning plate (11) and the second cleaning plate (12) are the same, the connection ends of the first cleaning plate (11) and the second cleaning plate (12) are distributed oppositely, and a mop cloth (113) is installed between the cavity (112) and the installation groove (114).

6. A mop for cleaning stairs steps according to claim 1, characterized in that said support bar (3) comprises a connecting rod (31), a tension rod (32) and a rotating seat (33),

the rotating seat (33) is symmetrically provided with two first connecting bayonets (331), one first connecting bayonets (331) is rotatably provided with a connecting rod (31), the other first connecting bayonets (331) is rotatably provided with a tension rod (32), and the connecting rod (31) is arranged on the outer side of the tension rod (32);

the bottom surface of the rotating seat (33) is provided with a second connecting bayonet (332).

7. The mop for cleaning stairs and steps as claimed in claim 1, wherein said elastic element (6) is a tension spring, both ends of said spring are fixed on two rotary connectors (13), respectively, and the outer surface of said elastic element (6) is provided with a protruding thorn structure.

8. The cleaning mop suitable for the stair steps as claimed in claim 1, wherein the inner side surfaces of the first cleaning plate (11) and the second cleaning plate (12) are fixed on the magnetic blocks (7), and the magnetic poles between the magnetic blocks (7) installed on the first cleaning module (1) and the magnetic blocks (7) installed on the second cleaning module (2) are opposite.