Magnetic wall climbing device and wall surface cleaning device

Abstract

The utility model relates to a magnetic attraction wall climbing device and a wall surface cleaning device.The magnetic attraction wall climbing device comprises a supporting beam and at least one wheel assembly detachably connected with the supporting beam, the wheel assembly comprises a plurality of wheels arranged side by side, a wheel support and a magnetic attraction piece, and the wheel support comprises a first end and a second end which are opposite; the first ends are detachably connected with the connecting ends of the supporting beams, the wheels are rotationally connected with the second ends, the magnetic attraction pieces are arranged between any two adjacent wheels, the magnetic attraction pieces are movably connected with the second ends, attraction force is generated between the magnetic attraction pieces and the wall face, and the magnetic attraction pieces are rotationally connected with the second ends through first connecting parts. And the distance between the magnetic attraction piece and the wall surface is adjusted. In the magnetic wall climbing device, the magnetic part is rotationally connected with the second end part of the wheel bracket through the first connecting part, the magnetic part is driven to rotate, and the distance between the magnetic part and the wall surface is adjusted, so that the attraction force between the magnetic part and the wall surface is adjusted, and the magnetic wall climbing device is suitable for wall surfaces with different shapes and materials.

Description

Technical Field

[0001] The present disclosure relates to the field of robotics technology, and in particular to a magnetic wall-climbing device and a wall cleaning device. Background Art

[0002] A magnetic wall climbing device is a device that uses the magnetic force between itself and a magnetic wall surface to adhere to the wall surface and can climb and move on the wall surface. It has been increasingly used in cleaning and maintenance operations under harsh working conditions, such as cleaning the water-cooled walls of boilers.

[0003] However, factors such as the material, shape, flatness, and cleanliness of the wall surface will have a significant impact on the normal operation of the magnetic wall climbing device, which may result in poor magnetic adsorption stability of the magnetic wall climbing device. Setting the suction force too large will also affect the climbing of the magnetic wall climbing device and fail to effectively realize the wall climbing function. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present disclosure aims to provide a magnetic wall climbing device and a wall cleaning device.

[0005] According to a first aspect of the present disclosure, a magnetic wall climbing device is provided for climbing a wall surface. The magnetic wall climbing device includes a support beam and at least one wheel assembly detachably connected to the support beam, wherein the wheel assembly includes:

[0006] a plurality of wheels, the plurality of wheels being arranged side by side;

[0007] a wheel bracket, comprising a first end portion and a second end portion opposite to each other, wherein the first end portion is detachably connected to the connecting end portion of the support beam, and the wheel is rotatably connected to the second end portion;

[0008] A magnetic member is arranged between any two adjacent wheels, the magnetic member is movably connected to the second end, an attractive force is generated between the magnetic member and the wall, and the magnetic member is rotatably connected to the second end through a first connecting portion to drive the magnetic member to rotate and adjust the distance between the magnetic member and the wall.

[0009] In a possible implementation manner, the first connecting portion is provided with a connecting shaft;

[0010] The connecting shaft is fixedly connected to the first connecting portion, and the magnetic element is capable of rotating relative to the connecting shaft; or

[0011] The connecting shaft is rotatable relative to the first connecting portion, and the magnetic element is fixedly connected to the connecting shaft.

[0012] In a possible implementation, the second end further includes a first adjustment component, and the first adjustment component is used to adjust the rotation angle of the magnetic component relative to the first connecting portion.

[0013] In a possible embodiment, the second end further includes a second adjustment component, which is used to adjust the distance between the first connecting portion and the wall surface, so as to adjust the distance between the magnetic component and the wall surface, and further adjust the magnitude of the suction force between the magnetic component and the wall surface.

[0014] In a possible implementation, the second end is further provided with a scale, and the scale is provided at the second adjustment component.

[0015] In a possible embodiment, the connecting end is provided with a mounting groove, the wheel bracket includes at least one connecting rod, the first end and the second end are respectively provided at two ends of the connecting rod, and the first end is provided with a mounting portion;

[0016] When the wheel bracket is in an assembled state, the connecting rod is clamped with the connecting end through the mounting groove, the mounting portion is located on a first side of the connecting end and abuts against the first side, the second end is located on a second side of the connecting end, and the first side is opposite to the second side.

[0017] In a possible embodiment, the connecting end is further provided with a first limiting portion, the mounting portion is provided with a second limiting portion cooperating with the first limiting portion, one of the first limiting portion and the second limiting portion is a card slot, and the other is a card block.

[0018] In a possible implementation, the mounting portion is provided with at least one first mounting hole, and the connecting end portion is provided with second mounting holes equal in number to the first mounting holes, and the first mounting holes correspond one-to-one to the second mounting holes;

[0019] When the wheel bracket is in an assembled state, a fastener passes through the first mounting hole and the second mounting hole to fasten the mounting portion and the connecting end portion.

[0020] In a possible embodiment, the magnetic wall climbing device includes two wheel assemblies, and the two wheel assemblies are detachably connected to both ends of the support beam respectively;

[0021] The support beam is also provided with a fixing portion for connecting with the guide rail, and the connecting end of the support beam is also provided with a pull ring for connecting with the pull rope.

[0022] According to the second aspect of the present disclosure, a wall cleaning device is provided, comprising a guide rail suspended on the wall, a cleaning tool movably connected to the guide rail, and a magnetic wall climbing device as described in the first aspect of the present disclosure, wherein the number of the magnetic wall climbing devices is two, and the two magnetic wall climbing devices are respectively fixed at both ends of the guide rail.

[0023] The advantage of the present disclosure is that in the magnetic wall-climbing device of the present disclosure, the magnetic component is rotatably connected to the second end of the wheel bracket through the first connecting part, driving the magnetic component to rotate and adjust the distance between the magnetic component and the wall, thereby adjusting the suction force between the magnetic component and the wall to be suitable for walls of different shapes and materials.

[0024] Other features and advantages of the present disclosure will be set forth in the subsequent description and, in part, will become apparent from the description or will be understood through implementation of the present application. The objectives and other advantages of the present application can be realized and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. In these drawings, similar reference numerals are used to identify similar elements. The drawings described below are some embodiments of the present disclosure, but not all embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0026] Figure 1 It is a schematic structural diagram of a wall cleaning device according to an exemplary embodiment.

[0027] Figure 2 It is a structural schematic diagram of a magnetic wall-climbing device according to an exemplary embodiment.

[0028] Figure 3 It is a structural schematic diagram of a magnetic wall-climbing device according to another exemplary embodiment.

[0029] Figure 4 It is a schematic structural diagram of a wheel assembly according to an exemplary embodiment.

[0030] Figure 5 It is a schematic structural diagram of a support beam according to an exemplary embodiment.

[0031] Figure 6 FIG. 4 is a schematic structural diagram of a connection end according to an exemplary embodiment. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure. It should be noted that, in the absence of conflict, the embodiments in this application and the feature vectors in the embodiments can be arbitrarily combined with each other.

[0033] A magnetic wall climbing device is a device that uses the magnetic force between itself and a magnetic wall surface to adhere to the wall surface and can climb and move on the wall surface. It has been increasingly used in cleaning and maintenance operations under harsh working conditions, such as cleaning the water-cooled walls of boilers.

[0034] However, factors such as the material, shape, flatness, and cleanliness of the wall surface will have a significant impact on the normal operation of the magnetic wall climbing device, which may result in poor magnetic adsorption stability of the magnetic wall climbing device. Setting the suction force too large will also affect the climbing of the magnetic wall climbing device and fail to effectively realize the wall climbing function.

[0035] To solve the above problems, the present disclosure provides a magnetic wall climbing device and a wall cleaning device. In the magnetic wall climbing device, the magnetic component is rotatably connected to the second end of the wheel bracket through a first connecting part, driving the magnetic component to rotate and adjust the distance between the magnetic component and the wall, thereby adjusting the suction force between the magnetic component and the wall to be suitable for walls of different shapes and materials.

[0036] According to an exemplary embodiment, Figures 1-6 As shown, the embodiment of the present disclosure provides a magnetic wall climbing device for climbing on a wall surface, such as the water-cooled wall surface of a boiler. Of course, it is understood that the magnetic wall climbing device of the embodiment of the present disclosure can also be applied to other magnetically conductive walls, and the embodiment of the present disclosure does not impose too many limitations on this.

[0037] The magnetic wall-climbing device includes a support beam 10 and at least one wheel assembly, detachably connected to the support beam 10. The wheel assembly comprises a wheel 20, a wheel bracket 30, and a magnetic element 40. Multiple wheels 20 are arranged side by side, with the magnetic element 40 positioned between any two adjacent wheels 20. The wheel bracket 30 includes opposing first and second ends 31 and 32. The first end 31 is detachably connected to the connecting end 11 of the support beam 10, while the second end 32 is rotatably connected to the wheel 20.

[0038] Among them, when the number of wheels 20 is an even number, such as two or four, the wheels 20 can be arranged symmetrically on both sides of the wheel bracket 30 and the magnetic component 40; when the number of wheels 20 is an odd number, such as three or five, the even number of wheels 20 can be arranged symmetrically on both sides of the wheel bracket 30 and the magnetic component 40, and the remaining odd number of wheels 20 are set on the symmetry axis. By symmetrically arranging the wheels 20, the structural stability and climbing stability of the magnetic wall climbing device can be improved.

[0039] The magnetic component 40 is movably connected to the second end portion 32, and an attractive force is generated between the magnetic component 40 and the wall. The magnetic component 40 may include a permanent magnet such as a magnet, or may include an electromagnet. The magnetic component 40 is rotatably connected to the second end portion 32 via the first connecting portion 50. The magnetic component 40 is driven to rotate by the first connecting portion 50, and the distance between the magnetic component 40 and the wall can be adjusted, thereby adjusting the size of the magnetic attraction force between the magnetic component 40 and the wall, so as to facilitate climbing over when the wall has protrusions or obstacles, or adjusting the size of the magnetic force to suit different wall surfaces after changing the application scenario. In addition, since the magnetic component 40 can be rotated and adjusted, it can also be suitable for inclined walls of different inclinations by adjusting the rotation angle, thereby improving the flexibility of the magnetic wall climbing device.

[0040] In the disclosed embodiment, the magnetic component of the magnetic wall climbing device is rotatably connected to the second end of the wheel bracket through the first connecting part, driving the magnetic component to rotate and adjust the distance between the magnetic component and the wall, thereby adjusting the suction force between the magnetic component and the wall to adapt to walls of different shapes and materials.

[0041] In some embodiments, the magnetic member 40 is rotatably connected to the second end portion 32 via a first connecting portion 50, and the first connecting portion 50 is provided with a connecting shaft 51. Figure 4 As shown, both ends of the connecting shaft 51 are respectively connected to the first connecting portion 50, and the magnetic member 40 is connected to the connecting shaft 51. In one example, the connecting shaft 51 is fixedly connected to the first connecting portion 50, and the magnetic member 40 can rotate relative to the connecting shaft 51, thereby achieving relative rotation between the magnetic member 40 and the second end portion 32. In another example, the connecting shaft 51 is rotatable relative to the first connecting portion 50, the magnetic member 40 is fixedly connected to the connecting shaft 51, and the connecting shaft 51 rotates relative to the second end portion 32, thereby driving the magnetic member 40 fixed to the connecting shaft 51 to rotate, so as to adjust the suction force between the magnetic member 40 and the wall.

[0042] In some embodiments, the second end portion 32 further comprises a first adjustment assembly. Figure 4As shown, the first adjustment component is used to adjust the rotation angle of the magnetic member 40 relative to the first connecting portion 50. In one example, the magnetic member 40 is fixedly connected to the connecting shaft 51, and the connecting shaft 51 can rotate relative to the first connecting portion 50. The first adjustment component includes a first adjustment screw 321 provided on the first connecting portion 50. By rotating the first adjustment screw 321, the rotation angle of the connecting shaft 51 can be adjusted, wherein the number of the first adjustment screws 321 can be set to two, and the two first adjustment screws 321 are respectively provided at both ends of the first connecting portion 50. Of course, it can be understood that when the connecting shaft 51 is fixedly connected to the first connecting portion 50 and the magnetic member 40 can rotate relative to the connecting shaft 51, the first adjustment component can also be used to adjust the rotation angle of the magnetic member 40 relative to the connecting shaft 51, and the embodiments of the present disclosure do not impose too many restrictions on this.

[0043] In some embodiments, the second end portion 32 further includes a second adjustment assembly. Figure 4 As shown, the first connecting portion 50 is movably connected to the second end portion 32, and the second adjustment component is used to adjust the distance between the first connecting portion 50 and the wall. In one example, the second adjustment component may include a second adjustment screw 322 and an adjustment hole (not shown) provided on the second end portion 32. The second adjustment screw 322 passes through the adjustment hole and abuts against the first connecting portion 50. By rotating the second adjustment screw 322, the length of the second adjustment screw 322 extending out of the adjustment hole can be adjusted, that is, the distance between the first connecting portion 50 and the second end portion 32 can be adjusted, thereby adjusting the distance between the first connecting portion 50 and the wall, so as to achieve the purpose of adjusting the suction force between the magnetic component 40 and the wall.

[0044] In one example, the second end portion 32 is further provided with a scale 323. Figure 4 As shown, the scale 323 is provided at the second adjustment component to facilitate control of the distance between the first connection portion 50 and the wall surface. The scale 323 can adopt international standard length or imperial units. In addition, the scale 323 can be used to directly display the adjustment amount of the second adjustment component to facilitate adjustment and control of the adjustment amount, and can also display the distance between the first connection portion 50 and the wall surface obtained after conversion, so as to intuitively and accurately adjust the distance between the first connection portion 50 and the wall surface. The embodiment of the present disclosure does not impose too many restrictions on the specific length standard selection and setting method of the scale 323, and those skilled in the art can make a selection according to actual needs.

[0045] In some embodiments, the support beam 10 is a hollow profile. The support beam 10 can be composed of multiple hollow profiles arranged side by side, secured together by connecting ends 11. Alternatively, the support beam 10 can be a single-piece hollow profile, ensuring sufficient structural strength while reducing weight. This helps reduce the weight of the magnetic wall climbing device and minimizes the load during climbing. Those skilled in the art can configure the specific structure of the support beam 10 based on actual needs, and the disclosed embodiments do not impose any limitations thereon.

[0046] In some embodiments, at least one wheel assembly of the magnetic wall climbing device is connected to the support beam 10 by snap-fitting. Figure 4 As shown, the wheel bracket 30 includes at least one connecting rod 301. In the embodiment of the present disclosure, there are two connecting rods 301, which can improve the connection stability. Of course, it can be understood that the connecting rod 301 can also be set to one or more. The embodiment of the present disclosure does not impose too many restrictions on this, and those skilled in the art can set it according to actual needs.

[0047] like Figure 3-Figure 5 As shown, the connecting end portion 11 is provided with a mounting groove 112, the first end portion 31 and the second end portion 32 are respectively provided at both ends of the connecting rod 301, and the first end portion 31 is also provided with a mounting portion 311. When the wheel assembly is assembled with the support beam 10, Figure 3-Figure 5 Taking the illustrated orientation as an example, the wheel assembly needs to be inserted into the mounting slot 112 from top to bottom for assembly. When the wheel bracket 30 is assembled, the connecting rod 301 is inserted into the mounting slot 112, thereby engaging with the connecting end 11. The mounting portion 311 is located on the first side 111 of the connecting end 11 and abuts against the first side 111 to limit the movement of the wheel assembly along the assembly direction. The second end 32 is located on the second side of the connecting end 11. The first side 111 and the second side are opposite, and the first end 31 and the second end 32 are opposite ends of the connecting rod 301.

[0048] In one example, if Figure 3-Figure 5 As shown, the connecting end portion 11 is further provided with a first limiting portion 113, and the mounting portion 311 is provided with a second limiting portion 3111 that cooperates with the first limiting portion 113. One of the first limiting portion 113 and the second limiting portion 3111 is a slot, and the other is a block. It is worth noting that the number of the first limiting portion 113 and the second limiting portion 3111 can be multiple. For example, the edge positions and center positions of the connecting end portion 11 and the mounting portion 311 can both be provided with a slot and a block for cooperating and engaging, thereby improving the stability and reliability of the connection.

[0049] In one example, if Figure 3-Figure 5As shown, the mounting portion 311 is fastened to the connecting end portion 11 by a fastener (not shown in the figure). The mounting portion 311 is provided with at least one first mounting hole 3112, and the connecting end portion 11 is provided with second mounting holes 114 equal in number to the first mounting holes 3112, and the first mounting holes 3112 and the second mounting holes 114 correspond one to one. When the wheel bracket 30 is in the assembled state, the fastener passes through the first mounting hole 3112 and the second mounting hole 114 to fasten the mounting portion 311 to the connecting end portion 11, wherein the fastener can be, for example, a screw, and the first mounting hole 3112 and the second mounting hole 114 can be, for example, a screw hole. Of course, the specific setting form of the fastener, the first mounting hole 3112 and the second mounting hole 114 can also be adjusted according to actual needs, and the embodiment of the present disclosure does not impose too many restrictions on this.

[0050] In some embodiments, the wheel assembly may further include a handle 302. Figure 4 As shown, the handle 302 can be provided at the first end 31 and / or the second end 32, so that the wheel assembly can be moved, loaded, and unloaded by grasping the handle 302. In one example, the handle 302 is provided at the first end 31. In another example, the handle 302 is provided at the second end 32. In yet another example, the handle 302 is provided at both the first end 31 and the second end 32. The specific location of the handle 302 can be set and adjusted by those skilled in the art according to actual needs, and the present disclosure does not impose any restrictions on this.

[0051] In some embodiments, the magnetic wall climbing device includes a wheel assembly. Figure 2 As shown, the wheel assembly is arranged at one end of the support beam 10 and is detachably connected to the connecting end 11 arranged at one end of the support beam 10. The other end of the support beam 10 is used to connect to the component that needs to be driven, such as the guide rail 60, so as to drive the guide rail 60 to move on the wall through the magnetic wall climbing device.

[0052] In some embodiments, the magnetic wall climbing device includes two wheel assemblies. Figure 3 As shown, both ends of the support beam 10 are provided with connecting end portions 11, and the two wheel assemblies are detachably connected to the connecting end portions 11 at both ends of the support beam 10. A fixing portion 12 is also provided on the support beam 10, and the fixing portion 12 is used to connect with the support beam 10. Figure 1 The fixing portion 12 can be connected to the guide rail 60 in the support beam 10, and the fixing portion 12 can be set in the middle of the support beam 10 to improve the structural stability and avoid uneven force. The fixing portion 12 can also be set at other positions of the support beam 10 according to actual needs.

[0053] In some embodiments, the connecting end 11 of the support beam 10 is further configured to connect to Figure 1A pull ring 115 connected to the pull rope 70 in the magnetic wall climbing device. In one example, a pull ring 115 is provided on one of the two connecting ends 11, one end of the pull rope 70 is connected to the pull ring 115, and the other end of the pull rope 70 is hung on the wall to prevent the magnetic wall climbing device from falling directly when a malfunction occurs. In another example, a pull ring 115 is provided on one of the two connecting ends 11, one end of the pull rope 70 is connected to the pull ring 115, and the other end of the pull rope 70 naturally droops toward the ground under the action of gravity, so that when the magnetic wall climbing device malfunctions and cannot move, the pull rope 70 can be manually pulled to pull down and reclaim the magnetic wall climbing device and the guide rail 60 connected to the magnetic wall climbing device. In yet another example, a pull ring 115 is provided on both connecting ends 11, the pull rope 70 connected to one of the pull rings 115 is hung on the wall, and the pull rope connected to the other pull ring 115 is hung toward the ground. The provision of the pull rope 70 improves the safety and reliability of the magnetic wall climbing device.

[0054] According to an exemplary embodiment, Figures 1-6 As shown, an embodiment of the present disclosure provides a wall cleaning device, including a guide rail 60 suspended on the wall, a cleaning tool 80 movably connected to the guide rail 60, and a magnetic wall-climbing device as described in the above embodiment. The number of magnetic wall-climbing devices is two, and the two magnetic wall-climbing devices are respectively fixed at both ends of the guide rail 60.

[0055] The magnetic wall-climbing device includes a support beam 10 and at least one wheel assembly, which is detachably connected to the support beam 10. The wheel assembly includes a wheel 20, a wheel bracket 30, and a magnetic member 40. There are multiple wheels 20, each arranged side by side. The magnetic member 40 is positioned between any two adjacent wheels 20. The wheel bracket 30 includes opposing first and second ends 31 and 32. The first end 31 is detachably connected to the connection end 11 of the support beam 10, and the second end 32 is rotatably connected to the wheel 20. The magnetic member 40 is movably connected to the second end 32, generating an attractive force between the magnetic member 40 and the wall. The magnetic member 40 is rotatably connected to the second end 32 via a first connecting portion 50. The first connecting portion 50 drives the magnetic member 40 to rotate, allowing the distance between the magnetic member 40 and the wall to be adjusted, thereby adjusting the magnetic attraction between the magnetic member 40 and the wall, thereby enhancing the flexibility of the magnetic wall-climbing device.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit it. The present disclosure is described in detail with reference to the preferred embodiments only. Those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and should be included in the scope of the claims of the present disclosure.

Claims

1. A magnetic wall climbing device, characterized in that: For climbing on a wall, the magnetic wall climbing device includes a support beam and at least one wheel assembly detachably connected to the support beam, the wheel assembly including: a plurality of wheels, the plurality of wheels being arranged side by side; a wheel bracket, comprising a first end portion and a second end portion opposite to each other, wherein the first end portion is detachably connected to the connecting end portion of the support beam, and the wheel is rotatably connected to the second end portion; A magnetic member is arranged between any two adjacent wheels, the magnetic member is movably connected to the second end, an attractive force is generated between the magnetic member and the wall, and the magnetic member is rotatably connected to the second end through a first connecting portion to drive the magnetic member to rotate and adjust the distance between the magnetic member and the wall.

2. The magnetic wall climbing device according to claim 1, characterized in that: The first connecting portion is provided with a connecting shaft; The connecting shaft is fixedly connected to the first connecting portion, and the magnetic element is capable of rotating relative to the connecting shaft; or The connecting shaft is rotatable relative to the first connecting portion, and the magnetic element is fixedly connected to the connecting shaft.

3. The magnetic wall climbing device according to claim 2, characterized in that: The second end portion further includes a first adjustment component, and the first adjustment component is used to adjust the rotation angle of the magnetic component relative to the first connecting portion.

4. The magnetic wall climbing device according to claim 1, characterized in that: The second end also includes a second adjustment component, which is used to adjust the distance between the first connecting portion and the wall surface to adjust the distance between the magnetic component and the wall surface, and further adjust the magnitude of the suction force between the magnetic component and the wall surface.

5. The magnetic wall climbing device according to claim 4, characterized in that: The second end portion is further provided with a scale, and the scale is arranged at the second adjustment component.

6. The magnetic wall climbing device according to claim 1, characterized in that: The connecting end portion is provided with a mounting groove, the wheel bracket includes at least one connecting rod, the first end portion and the second end portion are respectively provided at two ends of the connecting rod, and the first end portion is provided with a mounting portion; When the wheel bracket is in an assembled state, the connecting rod is clamped with the connecting end through the mounting groove, the mounting portion is located on a first side of the connecting end and abuts against the first side, the second end is located on a second side of the connecting end, and the first side is opposite to the second side.

7. The magnetic wall climbing device according to claim 6, characterized in that: The connecting end is further provided with a first limiting portion, and the mounting portion is provided with a second limiting portion cooperating with the first limiting portion. One of the first limiting portion and the second limiting portion is a card slot, and the other is a card block.

8. The magnetic wall climbing device according to claim 6, characterized in that: The mounting portion is provided with at least one first mounting hole, and the connecting end portion is provided with second mounting holes equal in number to the first mounting holes, and the first mounting holes correspond to the second mounting holes one-to-one; When the wheel bracket is in an assembled state, a fastener passes through the first mounting hole and the second mounting hole to fasten the mounting portion and the connecting end portion.

9. The magnetic wall climbing device according to claim 1, characterized in that: The magnetic wall climbing device includes two wheel assemblies, which are detachably connected to both ends of the support beam; The support beam is also provided with a fixing portion for connecting with the guide rail, and the connecting end of the support beam is also provided with a pull ring for connecting with the pull rope.

10. A wall cleaning device, characterized in that: It comprises a guide rail hung on the wall, a cleaning tool movably connected to the guide rail, and a magnetic wall-climbing device as described in any one of claims 1 to 9, wherein the number of the magnetic wall-climbing devices is two, and the two magnetic wall-climbing devices are respectively fixed at both ends of the guide rail.

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