Detachable connecting structure of glass wiper extension rod

Abstract

The utility model provides a detachable connecting structure of a glass wiper extension rod. The detachable connecting structure solves the technical problems that in the prior art, when an outer wiper body and an inner wiper body are mutually fixed, detachable structures need to be separated in a manual operation mode, and the like. According to the detachable connecting structure of the extension rod of the glass wiper, an outer magnet is connected into an outer wiper body in a sliding mode, the outer magnet and an inner magnet attract each other so that the outer wiper body and the inner wiper body can be mutually fixed, the inner magnet is arranged in the inner wiper body, and the detachable connecting structure comprises a first detachable part arranged at the end of the extension rod and a second detachable part arranged on the outer wiper body; when the outer eraser body and the inner eraser body are separated from each other, the first detachable part and the second detachable part are connected with each other. When the outer eraser body and the inner eraser body are mutually fixed, the outer magnet moves towards the inner magnet, and therefore the first detachable part and the second detachable part are automatically separated. The magnetic eraser has the advantages that when the outer eraser body and the inner eraser body are mutually fixed, the outer magnet moves towards the inner magnet, and the first detachable part and the second detachable part are automatically separated.

Description

Technical Field

[0001] This utility model belongs to the field of glass cleaning technology, and in particular relates to a detachable connection structure for a glass cleaning extension rod. Background Technology

[0002] With urbanization, more and more people are working in office buildings. However, cleaning the exterior of office building windows has become a pressing issue. Window cleaners consist of an outer and an inner cleaning body. The outer cleaning body cleans the exterior of the window glass, while the inner cleaning body cleans the interior. Both the outer and inner cleaning bodies contain magnets, allowing them to attract each other. When the outer and inner cleaning bodies are positioned on opposite sides of the glass, they attract each other (the closer they are, the stronger the magnetism; if the inner cleaning body is far from the outer, it is more likely to fall off), preventing the outer cleaning body from falling off the outside of the window. By changing the position of the inner cleaning body within the room, the operator can also move the corresponding outer cleaning body. In other words, the inner cleaning body not only cleans the glass but, more importantly, controls the movement of the outer cleaning body. Cleaning cloths are provided at the points where the outer and inner cleaning bodies contact the glass, so that people can clean the glass simply by controlling the inner cleaning body.

[0003] Office buildings often feature large glass windows, with operable windows typically located only in one or a few corners. These windows are often divided into sections, making it difficult for a glass cleaner to reach the other side of the glass when encountering a section. Furthermore, office building glass often has large corners or curves, making it difficult to clean the other side of the glass when only operable windows are located on one side of the corner or curve. Chinese utility model patent [patent number CN202321758131.7] discloses a glass cleaner with an extension rod. The outer cleaning body has a connecting seat, and the extension rod is connected to the connecting seat via a detachable connection structure. However, when the outer and inner cleaning bodies are fixed together, this detachable connection structure requires manual operation to separate. Summary of the Invention

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a detachable connection structure for a glass wiper extension rod that is reasonably designed, simple in structure, and automatically separates when the outer wiper body and the inner wiper body are fixed together.

[0005] A detachable connection structure for a glass cleaner extension rod is provided, disposed between an outer cleaning body and an extension rod. An outer magnet is slidably connected inside the outer cleaning body, and the outer magnet attracts an inner magnet to fix the outer and inner cleaning bodies together. The inner magnet is disposed within the inner cleaning body. This detachable connection structure includes a detachable component one disposed at the end of the extension rod and a detachable component two disposed on the outer cleaning body. When the outer and inner cleaning bodies are detached, the detachable component one and the detachable component two are connected to each other, thereby connecting the extension rod to the outer cleaning body. When the outer and inner cleaning bodies are fixed together by the attraction of the outer and inner magnets, the outer magnet moves toward the inner magnet, thereby automatically separating the detachable component one and the detachable component two, and thus separating the extension rod from the outer cleaning body. When the outer and inner rubbing bodies are detached, detachable part one and detachable part two can be connected manually or automatically; when the outer and inner rubbing bodies are fixed together, detachable part one and detachable part two will automatically separate by moving the outer magnet toward the inner magnet, which is easy to operate.

[0006] Preferably, the first detachable component is a magnetic attraction component, and the second detachable component is the outer surface of the outer rubbing body. When the outer rubbing body and the inner rubbing body are detached, the first magnetic attraction component is located outside the outer rubbing body, and the outer magnet attracts the first magnetic attraction component, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed together by the attraction of the outer magnet and the inner magnet, the magnetic attraction force between the outer magnet and the first magnetic attraction component is less than the magnetic attraction force between the outer magnet and the inner magnet, causing the outer magnet to move towards the inner magnet, further reducing the magnetic attraction force between the outer magnet and the first magnetic attraction component, and causing the extension rod to separate from the outer rubbing body. When the outer rubbing body and the inner rubbing body are detached, the outer magnet attracts the first magnetic attraction component, realizing the automatic connection of the first detachable component and the second detachable component.

[0007] Preferably, the first detachable component is a rough-surface component of the Velcro, and the second detachable component is a hook-surface component of the Velcro. The hook-surface component is disposed on the outside of the outer magnet, and the outside of the outer rubbing body has an opening corresponding to the hook-surface component. When the outer rubbing body and the inner rubbing body are detached, the rough-surface component and the hook-surface component are connected to each other, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed together by the attraction between the outer magnet and the inner magnet, the bonding force between the rough-surface component and the hook-surface component is less than the magnetic attraction force between the outer magnet and the inner magnet, causing the outer magnet to move towards the inner magnet, thereby separating the rough-surface component and the hook-surface component, and separating the extension rod from the outer rubbing body. When the outer rubbing body and the inner rubbing body are detached, the opening of the outer rubbing body is turned downwards, allowing the hook-surface component to move to the opening under the gravity of the outer magnet, and then the rough-surface component and the hook-surface component are manually connected.

[0008] Preferably, the first detachable component is a socket, and the second detachable component is a pin. The end of the pin is located on the outside of the outer magnet, and the outside of the outer rubbing body has an opening corresponding to the pin. When the outer rubbing body and the inner rubbing body are disengaged, the pin is inserted into the socket, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed together by the attraction of the outer magnet and the inner magnet, the outer magnet moves towards the inner magnet, thereby disengaging the pin from the socket and separating the extension rod from the outer rubbing body. When the outer rubbing body and the inner rubbing body are disengaged, the opening of the outer rubbing body is turned downwards, allowing the pin to move to the opening under the gravity of the outer magnet, and then the pin is manually inserted into the socket.

[0009] Preferably, the pin is cylindrical and made of elastic material, and the cross-sectional area of ​​the pin is smaller than the cross-sectional area of ​​the opening, while the cross-sectional area of ​​the pin is larger than the cross-sectional area of ​​the socket; the pin and the socket are interference-fitted to improve the degree of fixation.

[0010] Alternatively, the cross-sectional area of ​​the pin is smaller than the cross-sectional area of ​​the opening, and the number of pins is at least two. One pin is fixed to the outer magnet and slidably connected to a connecting piece. The pin fixed to the outer magnet has an elastic protrusion. The remaining pin is disposed on the connecting piece. When the outer rubbing body and the inner rubbing body are separated from each other, the elastic protrusion is close to the outside of the connecting piece. When the outer rubbing body and the inner rubbing body are attracted to each other by the outer magnet and the inner magnet and thus fixed to each other, the elastic protrusion is close to the inside of the connecting piece.

[0011] Preferably, a top member is provided between the outer magnet and the outer rubbing body to keep the outer magnet moving towards the outside of the outer rubbing body. When the outer rubbing body and the inner rubbing body are attracted to each other on the glass and then separate, the outer magnet moves towards the outside of the outer rubbing body under the action of the top member, thereby driving the second detachable part to move to the opening, so as to facilitate the reconnection between the second detachable part and the first detachable part.

[0012] Preferably, the top member is an elastic member, and the two ends of the elastic member are respectively fixed to the outer magnet and the outer rubbing body; or, the top member is a second magnetic attracting member, and the second magnetic attracting member is disposed on the side of the outer rubbing body near the second detachable member.

[0013] Preferably, the detachable connection structure further includes a kit, into which the end of the extension rod with the detachable component is inserted. The insertion of the extension rod end into the kit prevents the outer wiper from falling off when the outer and inner wipers are attracted to each other on the glass and then detach.

[0014] Preferably, when the end of the extension rod with the first detachable component abuts against the inner side of the kit, the first detachable component is in a position corresponding to the second detachable component. By abutting the end of the extension rod against the inner side of the kit, the first detachable component is positioned in a position corresponding to the second detachable component in the axial direction of the extension rod, thereby facilitating the connection between the second detachable component and the first detachable component.

[0015] Preferably, the end of the extension rod with the first detachable component is non-rotatable, and the internal space shape of the kit corresponds to the shape of the end of the extension rod with the first detachable component. The non-rotatable end of the extension rod with the first detachable component allows the first detachable component to be positioned in a position corresponding to the second detachable component in the circumferential direction of the extension rod, thus facilitating the connection between the second detachable component and the first detachable component.

[0016] Compared with existing technologies, the advantages of a detachable connection structure for a glass cleaning extension rod are:

[0017] 1. When the outer and inner rubbing bodies are detached, detachable part one and detachable part two can be connected manually or automatically; when the outer and inner rubbing bodies are fixed together, detachable part one and detachable part two will automatically separate by moving the outer magnet toward the inner magnet, which is easy to operate.

[0018] 2. When the outer and inner wiping bodies are attracted to each other on the glass and then separate, the outer magnet moves toward the outside of the outer wiping body under the action of the top part, thereby driving the second detachable part to move to the opening, so that the second detachable part and the first detachable part can be reconnected.

[0019] 3. The extension rod end insert kit prevents the outer wiper from falling off when the outer and inner wipers are attracted to each other on the glass and then detach.

[0020] 4. By placing the end of the extension rod against the inner side of the kit, the first detachable part can be positioned in a position corresponding to the second detachable part in the axial direction of the extension rod, thus facilitating the connection between the second detachable part and the first detachable part.

[0021] 5. The extension rod end of the detachable component one is non-rotating, which allows the detachable component one to be positioned in a position corresponding to the detachable component two in the circumferential direction of the extension rod, thereby facilitating the connection between the detachable component two and the detachable component one. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of the glass wiper according to Embodiment 1 of this utility model is provided.

[0023] Figure 2 An exploded view of the structure of the glass cleaning body according to Embodiment 1 of this utility model is provided.

[0024] Figure 3 Provided Figure 2 A magnified view of a portion of point A in the middle.

[0025] Figure 4 An exploded view of the structure of the glass cleaning extension rod according to Embodiment 1 of this utility model is provided.

[0026] Figure 5 An exploded view of the structure of the glass cleaning body according to Embodiment 2 of this utility model is provided.

[0027] Figure 6 An exploded view of the structure of the glass cleaning extension rod according to Embodiment 2 of this utility model is provided.

[0028] Figure 7 An exploded view of the structure of the glass cleaning body according to Embodiment 3 of this utility model is provided.

[0029] Figure 8 An exploded view of the structure of the glass cleaning extension rod according to Embodiment 3 of this utility model is provided.

[0030] In the figure, there are: outer rubbing body 1, outer magnet 11, inner rubbing body 2, extension rod 3, detachable part 1 4, insertion hole 41, magnetic attraction part 1 42, rough surface part 43, detachable part 2 5, pin 50, connecting piece 51, elastic protrusion 52, hook surface part 53, top part 6, and kit 7. Detailed Implementation

[0031] To make the technical problems, technical solutions and beneficial effects solved by this utility model clearer, the utility model will be further described below with reference to the accompanying drawings and specific embodiments. However, this utility model is not limited to the described embodiments. On the contrary, this utility model includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0032] Example 1

[0033] like Figure 1-2 As shown, a detachable connection structure for a glass cleaning extension rod 3 is disposed between an outer cleaning body 1 and an extension rod 3. The outer cleaning body 1 is located outdoors, and an outer magnet 11 is slidably connected inside the outer cleaning body 1. The outer magnet 11 attracts an inner magnet, thereby fixing the outer cleaning body 1 and the inner cleaning body 2 together. The inner cleaning body 2 is located indoors, and an inner magnet is disposed in the inner cleaning body 2. This detachable connection structure includes a detachable component 4 disposed at the end of the extension rod 3 and a detachable component 5 disposed on the outer cleaning body 1. When the outer cleaning body 1 and the inner cleaning body 2 are separated from each other, the detachable component 4 and the detachable component 5 are connected to each other, thereby connecting the extension rod 3 and the outer cleaning body 1. When the outer cleaning body 1 and the inner cleaning body 2 are fixed together by the attraction of the outer magnet 11 and the inner magnet, the outer magnet 11 moves toward the inner magnet, thereby automatically separating the detachable component 4 and the detachable component 5, and thus separating the extension rod 3 from the outer cleaning body 1. When the outer rubbing body 1 and the inner rubbing body 2 are separated from each other, the detachable part 1 4 and the detachable part 2 5 can be connected to each other manually or automatically; when the outer rubbing body 1 and the inner rubbing body 2 are fixed together, the detachable part 1 4 and the detachable part 2 5 will automatically separate by moving the outer magnet 11 toward the inner magnet, which is easy to operate.

[0034] Detachable component 4 is a socket 41, and detachable component 5 is a pin 50. The axis of the pin 50 is preferably perpendicular to the outer surface of the outer magnet 11. The end of the pin 50 is located on the outside of the outer magnet 11. The outer side of the outer rubbing body 1 has an opening corresponding to the pin 50. When the outer rubbing body 1 and the inner rubbing body 2 are separated, the pin 50 is inserted into the socket 41, thereby connecting the extension rod 3 with the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are fixed together by the attraction between the outer magnet 11 and the inner magnet, the outer magnet 11 moves towards the inner magnet, thereby causing the pin 50 to disengage from the socket 41, and thus separating the extension rod 3 from the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are separated, the opening of the outer rubbing body 1 is turned downwards, so that the pin 50 moves to the opening under the gravity of the outer magnet 11, and then the pin 50 is manually inserted into the socket 41.

[0035] The pin 50 is cylindrical and made of elastic material. The cross-sectional area of ​​the pin 50 is smaller than the cross-sectional area of ​​the opening, and the cross-sectional area of ​​the pin 50 is larger than the cross-sectional area of ​​the socket 41. The pin 50 and the socket 41 are interference-fitted to improve the degree of fixation. Alternatively, the cross-sectional area of ​​the pin 50 is smaller than the cross-sectional area of ​​the opening. There are at least two pins 50. One pin 50 is fixed to the outer magnet 11 and is slidably connected to the connecting piece 51. The pin 50 fixed to the outer magnet 11 is provided with an elastic protrusion 52. The remaining pins 50 are set on the connecting piece 51. When the outer rubbing body 1 and the inner rubbing body 2 are separated from each other, all the pins 50 are inserted into the socket 41. The elastic protrusion 52 is close to the outside of the connecting piece 51 to prevent the pins 50 from coming out of the socket 41. When the outer rubbing body 1 and the inner rubbing body 2 are fixed to each other by mutual attraction between the outer magnet 11 and the inner magnet, the elastic protrusion 52 is close to the inside of the connecting piece 51 to prevent the pins 50 from drilling out of the opening.

[0036] A top member 6 is provided between the outer magnet 11 and the outer rubbing body 1 to maintain the outer magnet 11's tendency to move outward toward the outer rubbing body 1. The top member 6 is an elastic member, and its two ends are respectively fixed to the outer magnet 11 and the outer rubbing body 1. Alternatively, the top member 6 is a second magnetic attraction member, which can be a magnet or a metal that can be attracted by a magnet. The second magnetic attraction member is located on the side of the outer rubbing body 1 near the second detachable member 5. When the outer rubbing body 1 and the inner rubbing body 2 are attracted to each other on the glass and then separate, the outer magnet 11 moves outward toward the outer rubbing body 1 under the action of the top member 6, thereby driving the second detachable member 5 to move to the opening, facilitating the reconnection between the second detachable member 5 and the first detachable member 4.

[0037] This detachable connection structure also includes a kit 7, which has a socket on one side and is closed on the other. The end of the extension rod 3 with the detachable part 4 is inserted into the kit 7 through the socket. When the end of the extension rod 3 with the detachable part 4 abuts against the inner side of the socket of the kit 7, the detachable part 4 is in a position corresponding to the detachable part 5. The end of the extension rod 3 with the detachable part 4 is a non-rotating body, and the internal space shape of the kit 7 corresponds to the shape of the end of the extension rod 3 with the detachable part 4. It should be noted that the definition of a rotating body is: if two points are assumed at the two ends of an object, and a line is drawn connecting the two points through the object, and the object rotates around this line as its center of rotation, each part of the object will have the same shape when it reaches a fixed position. A non-rotating body is a shape that is not a rotating body, thereby achieving circumferential fixation of the extension rod 3 and the outer friction body 1 after insertion into the kit 7.

[0038] The end of the extension rod 3 is inserted into the kit 7. When the outer wiper 1 and the inner wiper 2 are attracted to each other on the glass and then detached, the outer wiper 1 can be prevented from falling off. When the end of the extension rod 3 is pressed against the inner side of the kit 7, the detachable part 1 4 can be positioned in a position corresponding to the detachable part 2 5 in the axial direction of the extension rod 3, thus facilitating the connection between the detachable part 2 5 and the detachable part 1 4. The end of the extension rod 3 with the detachable part 1 4 is a non-rotating body, so that the detachable part 1 4 can be positioned in a position corresponding to the detachable part 2 5 in the circumferential direction of the extension rod 3, thus facilitating the connection between the detachable part 2 5 and the detachable part 1 4.

[0039] Example 2

[0040] The structure, principle, and implementation steps of this embodiment are similar to those of Embodiment 1, except that:

[0041] like Figure 3 As shown, detachable part 4 is magnetic attraction part 42, which can be a magnet or a metal that can be attracted by a magnet. Detachable part 5 is the outer surface of the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are separated, the magnetic attraction part 42 is located outside the outer rubbing body 1, and the outer magnet 11 and the magnetic attraction part 42 attract each other, thereby connecting the extension rod 3 to the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are fixed together by the attraction of the outer magnet 11 and the inner magnet, the magnetic attraction force between the outer magnet 11 and the magnetic attraction part 42 is less than the magnetic attraction force between the outer magnet 11 and the inner magnet, thereby causing the outer magnet 11 to move toward the inner magnet, further reducing the magnetic attraction force between the outer magnet 11 and the magnetic attraction part 42, and causing the extension rod 3 to separate from the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are separated from each other, the outer magnet 11 and the magnetic attraction component 42 attract each other, realizing the automatic connection between the detachable component 4 and the detachable component 5.

[0042] Example 3

[0043] The structure, principle, and implementation steps of this embodiment are similar to those of Embodiment 1, except that:

[0044] like Figure 4As shown, detachable part 4 is the rough surface part 43 of the hook and loop fastener, and detachable part 5 is the hook surface part 53 of the hook and loop fastener. The hook surface part 53 is located on the outside of the outer magnet 11, and the outer side of the outer rubbing body 1 has an opening corresponding to the hook surface part 53. When the outer rubbing body 1 and the inner rubbing body 2 are separated, the rough surface part 43 and the hook surface part 53 are connected to each other, thereby connecting the extension rod 3 to the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are fixed to each other by the attraction between the outer magnet 11 and the inner magnet, the bonding force between the rough surface part 43 and the hook surface part 53 is less than the magnetic attraction force between the outer magnet 11 and the inner magnet, thereby causing the outer magnet 11 to move toward the inner magnet, and then causing the rough surface part 43 and the hook surface part 53 to separate from each other, and causing the extension rod 3 to separate from the outer rubbing body 1. When the outer rubbing body 1 and the inner rubbing body 2 are separated from each other, the opening of the outer rubbing body 1 is turned downward so that the hook surface part 53 moves to the opening under the gravity of the outer magnet 11, and then the rough surface part 43 and the hook surface part 53 are manually connected to each other.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0046] Although this document frequently uses terms such as outer rubbing body 1, outer magnet 11, inner rubbing body 2, extension rod 3, detachable part 1 4, insertion hole 41, magnetic attraction part 1 42, rough surface part 43, detachable part 2 5, pin 50, connecting piece 51, elastic protrusion 52, hook surface part 53, top part 6, and kit 7, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A detachable connection structure for a glass cleaner extension rod, disposed between an outer cleaning body and an extension rod, wherein an outer magnet is slidably connected inside the outer cleaning body, and the outer magnet attracts an inner magnet to fix the outer cleaning body and the inner cleaning body together, the inner magnet being disposed within the inner cleaning body, characterized in that, This detachable connection structure includes a detachable component one disposed at the end of the extension rod and a detachable component two disposed on the outer rubbing body; when the outer rubbing body and the inner rubbing body are detached from each other, the detachable component one and the detachable component two are connected to each other, thereby connecting the extension rod to the outer rubbing body; when the outer rubbing body and the inner rubbing body are fixed to each other by mutual attraction through the outer magnet and the inner magnet, the outer magnet moves toward the inner magnet, thereby automatically separating the detachable component one and the detachable component two, and thus separating the extension rod from the outer rubbing body.

2. The detachable connection structure of a glass cleaning extension rod according to claim 1, characterized in that, The first detachable component is a magnetic attraction component, and the second detachable component is the outer surface of the outer rubbing body. When the outer rubbing body and the inner rubbing body are separated, the first magnetic attraction component is located outside the outer rubbing body, and the outer magnet and the first magnetic attraction component attract each other, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed together by the attraction of the outer magnet and the inner magnet, the magnetic attraction force between the outer magnet and the first magnetic attraction component is less than the magnetic attraction force between the outer magnet and the inner magnet, thereby causing the outer magnet to move towards the inner magnet, further reducing the magnetic attraction force between the outer magnet and the first magnetic attraction component, and causing the extension rod to separate from the outer rubbing body.

3. The detachable connection structure of a glass cleaning extension rod according to claim 1, characterized in that, The first detachable component is the rough surface of the Velcro, and the second detachable component is the hook surface of the Velcro. The hook surface is disposed on the outside of the outer magnet, and the outside of the outer rubbing body has an opening corresponding to the hook surface. When the outer rubbing body and the inner rubbing body are detached, the rough surface and the hook surface are connected to each other, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed to each other by the attraction between the outer magnet and the inner magnet, the bonding force between the rough surface and the hook surface is less than the magnetic attraction force between the outer magnet and the inner magnet, thereby causing the outer magnet to move towards the inner magnet, which in turn causes the rough surface and the hook surface to separate from each other, and the extension rod to separate from the outer rubbing body.

4. The detachable connection structure of a glass cleaning extension rod according to claim 1, characterized in that, The first detachable component is a socket, and the second detachable component is a pin. The end of the pin is located on the outside of the outer magnet, and the outside of the outer rubbing body has an opening corresponding to the pin. When the outer rubbing body and the inner rubbing body are disengaged, the pin is inserted into the socket, thereby connecting the extension rod to the outer rubbing body. When the outer rubbing body and the inner rubbing body are fixed together by the attraction between the outer magnet and the inner magnet, the outer magnet moves toward the inner magnet, thereby disengaging the pin from the socket, and thus separating the extension rod from the outer rubbing body.

5. The detachable connection structure of a glass cleaning extension rod according to claim 4, characterized in that, The pin is cylindrical and made of elastic material, and the cross-sectional area of ​​the pin is smaller than the cross-sectional area of ​​the opening, while the cross-sectional area of ​​the pin is larger than the cross-sectional area of ​​the socket. Alternatively, the cross-sectional area of ​​the pin is smaller than the cross-sectional area of ​​the opening, and the number of pins is at least two. One pin is fixed to the outer magnet and slidably connected to a connecting piece. The pin fixed to the outer magnet has an elastic protrusion. The remaining pin is disposed on the connecting piece. When the outer rubbing body and the inner rubbing body are separated from each other, the elastic protrusion is close to the outside of the connecting piece. When the outer rubbing body and the inner rubbing body are attracted to each other by the outer magnet and the inner magnet and thus fixed to each other, the elastic protrusion is close to the inside of the connecting piece.

6. A detachable connection structure for a glass cleaning extension rod according to claim 3, 4, or 5, characterized in that, A top piece is provided between the outer magnet and the outer rubbing body to keep the outer magnet moving towards the outside of the outer rubbing body.

7. The detachable connection structure for a glass cleaning extension rod according to claim 6, characterized in that, The top component is an elastic component, and the two ends of the elastic component are respectively fixed to the outer magnet and the outer rubbing body; or, the top component is a second magnetic attracting component, which is disposed on the side of the outer rubbing body near the second detachable component.

8. A detachable connection structure for a glass cleaning extension rod according to any one of claims 1 to 5, characterized in that, This detachable connection structure also includes a kit into which the end of the extension rod, which is provided with the detachable component, is inserted.

9. The detachable connection structure of a glass cleaning extension rod according to claim 8, characterized in that, When the end of the extension rod with the first detachable component abuts against the inner side of the kit, the first detachable component is in a position corresponding to the second detachable component.

10. The detachable connection structure of a glass cleaning extension rod according to claim 9, characterized in that, The extension rod end of the detachable component is non-rotating, and the internal space shape of the kit corresponds to the shape of the extension rod end of the detachable component.

Images