SUPERFICIAL MULTI-ADHESIVE FIXING DEVICE

Abstract

SUPERFICIAL MULTI-ADHESIVE FASTENING DEVICE The invention relates to a superficial multi-adhesion fastening device (10), comprising: a shell assembly (20) including a first shell (21), a second shell (22) movably connected to the first shell (21), and elastic elements disposed between the first and second shells (21, 22); a suction cup assembly (40) including a suction cup body (41) installed on the first shell (21) in an exposed manner and located on the same side as the second shell (22), and a release element (42) installed on the first shell (21); and a magnetic surface adhesion assembly (30) disposed on the second shell (22) and adjacent to the suction cup body (41). The release element (42) can come into contact with the suction cup body (41) after actuation and release the unloaded surface adhesion of the suction cup body (41) during the contact process. Figure to be published with the abbreviation: Figure 1

Description

Title of the invention: SUPERFICIAL MULTI-ADHESIVE FIXING DEVICE

[0001] BACKGROUND OF THE PRESENT INVENTION

[0002] 1. Scope of the present invention

[0003] The present invention relates generally to an accessory for electronic devices, and more particularly to a multi-surface adhesion fastening device.

[0004] 2. Prior art

[0005] Given that portable electronic devices are now an integral part of people's daily lives, they have become an indispensable tool in the modern world. With various environments and locations of use, the use of an intermediate connection device has been developed to attach the electronic device to other fixed devices, such as a hands-free mount. The electronic device is attached to the vehicle's windshield or other fixed devices via the hands-free mount, thus freeing the user's hands while driving. The suction cup mount is currently the most frequently used product, but problems remain, such as insufficient suction power.

[0006] Magnetic mounts that secure electronic devices using the magnetic attraction of magnets are currently widely used by consumers due to their convenience. Combined with the development of wireless charging technology, mobile phones with wireless charging capabilities that can be directly attached magnetically are becoming increasingly popular with many consumers. However, with increased usage, the strength of the magnetic surface adhesion has also become more critical. It appears that simple magnetic surface adhesion can no longer meet such demands, and a practical structure is urgently needed.

[0007] SUMMARY OF THE PRESENT INVENTION

[0008] The present invention aims to provide a multi-surface adhesion fastening device which uses dual surface adhesion effects such as magnetic attraction and a vacuum suction cup to provide a firm force necessary for fastening and, thanks to the floating bonding structure, both can achieve a good surface adhesion effect when used, which meets the desire to obtain stable firmness when electronic devices are fixed.

[0009] To this end, the present invention relates to a multi-surface adhesion fastening device, comprising: a shell assembly, comprising a first shell, a second shell and a plurality of elastic elements, the second shell being movably connected to the first shell to allow the two to move relative to each other without being separated, the plurality of elastic elements being arranged between the first shell and the second shell; a suction cup assembly, comprising: a suction cup body and a release element, the suction cup body being disposed on the first shell in an exposed manner and located on the same side as the second shell, the release element being disposed on the first shell and capable of coming into contact with the suction cup body after being actuated and of releasing the suction cup body from a state of surface adhesion in a vacuum during a contact process;and a magnetic surface adhesion assembly, disposed on the second shell and adjacent to the suction cup body.

[0010] According to a preferred embodiment, the second shell is annular and connected to the first shell, the suction cup body is fixed on a central area of ​​the first shell, and the magnetic surface adhesion assembly is fixed inside the second shell and surrounds a periphery of the suction cup body.

[0011] According to a preferred embodiment, the shell assembly further includes a separating wall, which is locked onto an end surface of the first shell opposite the second shell, and the suction cup body has a convex traction element at the center and the traction element is fixed on the separating wall.

[0012] According to a preferred embodiment, the shell assembly further comprises a separating wall, which is locked onto an end surface of the first shell opposite the second shell, a plurality of guide rods are arranged on the second shell in a direction opposite the separating wall, the guide rods penetrate the separating wall and are locked, the guide rods are able to slide on the separating wall and not separate from the separating wall, such that the second shell is able to move closer to or further away from the first shell with the help of the plurality of guide rods.

[0013] According to a preferred embodiment, the shell assembly further comprises a partition wall, which is locked onto an end surface of the first shell opposite the second shell, a plurality of first receiving seats are arranged on the partition wall in a direction opposite the second shell, a plurality of second receiving seats are arranged on the second shell in a direction opposite the partition wall, and the two ends of each elastic element are respectively fixed to the corresponding first receiving seat and second receiving seat.

[0014] According to a preferred embodiment, the second shell is formed with a groove concave annular on an end surface opposite the first shell, and the magnetic surface adhesion assembly is a magnet disposed in the annular groove, the second shell further includes a soft pad to seal the annular groove so that the magnetic surface adhesion assembly is hidden in the second shell.

[0015] According to a preferred embodiment, the suction cup body further comprises a protruding element, which is located on a top surface of the suction cup body adjacent to an edge; the release element is limited on the shell assembly and is only capable of causing a displacement of the protruding element, and the release element has a downward hook; when an external force is applied to move the release element, the hook comes into contact with the protruding element during the displacement, and the protruding element causes the edge of the suction cup body to separate from a contact surface to release the surface adhesion state in the vacuum.

[0016] According to a preferred embodiment, the first shell has a window, and the shell assembly further includes a separating wall, which is locked onto an end surface of the first shell opposite the second shell, the release element is disposed in the window and is restricted to move only in a space between the separating wall and the first shell, the separating wall further includes a through opening, and the protruding element is located in a path of movement of the hook through the opening.

[0017] According to a preferred embodiment, the release element further comprises at least one spring, the separating wall has at least one stop projecting in the direction opposite the first shell, at least one guide groove is disposed on a lower part of the release element; when the stop and the spring are both located in the guide groove, the release element is limited to moving only in a space between the separating wall and the first shell, and the release element is controlled by the spring in the absence of an external force to move away from the center of the suction cup body.

[0018] According to a preferred embodiment, an outer wall of the first shell away from the second shell includes a connecting part.

[0019] Compared to existing technology, the present invention has the following specific effects:

[0020] 1. It has superficial double adhesion effects, such as an attraction ma genetics and a superficial adhesion in vacuum, which gives it better firmness when fixed.

[0021] 2. The second shell is movably connected to the first shell, such that that, when the suction cup body is pressed downwards, a good surface adhesion can be achieved in a vacuum. Furthermore, when the external force is removed, the element The elastic band is pressed between the first shell and the second shell; the first shell continues to pull the suction cup body away from the adhered contact surface, thus maintaining a better surface adhesion state when empty and achieving a good fixing effect.

[0022] 3. Although the suction cup body is placed on the first shell when it is not When used, most of the body can also be concealed within the central area of ​​the second annular shell. This prevents the suction cup body's surface from being contaminated by dust, which would affect its surface adhesion.

[0023] 4. The multi-surface adhesion fastening device according to the present invention can be widely used in various connection devices, for example for surface adhesion of mobile phones, or fixed to the metal surfaces of various devices, thus meeting the diverse needs of users. Brief description of the drawings

[0024] The present invention will be better understood by those skilled in the art upon reading the following detailed description of a preferred embodiment thereof, with reference to the accompanying drawings in which:

[0025] [Fig-1] is a three-dimensional view of the present invention;

[0026] [Fig.2] is an exploded view of the present invention;

[0027] [Fig.3] is an exploded view from another angle of the present invention;

[0028] [Fig.4] is a cross-sectional view of plane AA of [Fig.1];

[0029] [Fig.5] is a cross-sectional view of plane BB of [Fig.1];

[0030] [Fig.6] is a cross-sectional view of plane CC of [Fig.1];

[0031] [Fig.7] is a schematic view of the actuation of the super adhesion assembly magnetic filament in the magnetic surface adhesion state of the present invention;

[0032] [Fig.8] is a schematic view of the actuation of the vacuum suction state of the suction cup assembly of the present invention;

[0033] [Fig.9] is a schematic view of the use of elastic elements of the present invention to produce a better surface adhesion state in vacuum;

[0034] [Fig. 10] is a schematic view of the present invention for releasing the surface adhesion state in a vacuum;

[0035] [Fig. 11] is a schematic view of the actual product of the present invention.

[0036] DETAILED DESCRIPTION OF THE PREFERRED IMPLEMENTATION METHOD

[0037] The technical solutions of the present invention will be clearly and completely described below in association with the specific embodiments and the See attached drawings. It should be noted that when an element is referenced as being "mounted or attached to" another element, this means that the element may be directly on the other element or that an intermediate element may also be present. When an element is referenced as being "connected" to another element, this means that the element may be directly connected to the other element or that intermediate elements may also be present. In the illustrated embodiment, the directions indicated as up, down, left, right, front, and back, etc., are relative and are used to explain that the structures and movements of the various elements are relative in this case. These representations are appropriate when the elements are in the positions shown in the figures. However, if the description of the element positions changes, it is assumed that these representations will change accordingly.

[0038] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as that commonly understood by a person skilled in the art of the present invention. The terminology used in this document serves only to describe particular embodiments and is not intended to limit the present invention. In this document, the term "and / or" includes all combinations of one or more of the listed elements together.

[0039] The "surface adhesion state in vacuum" referred to in the present The document explains the operating principle of a suction cup. When the suction cup is attached to the surface of an object and the surrounding pressure (atmospheric pressure) is greater than the pressure between the suction cup and the surface, a lower pressure is generated between the suction cup and the surface. The lower the pressure, the higher the degree of vacuum and the stronger the suction cup's gripping force, thus creating a state of superficial vacuum adhesion between the suction cup and the surface.

[0040] Figure 1 shows a three-dimensional view of the present invention. The multi-surface adhesion fastening device 10 of the present invention comprises a shell assembly 20, a magnetic surface adhesion assembly 30, and a suction cup assembly 40. The suction cup assembly 40 comprises a suction cup body 41 and a release element 42. The suction cup body 41 is installed exposed on the shell assembly 20 and is used to adhere to a flat contact surface to form a vacuum surface adhesion state. The magnetic surface adhesion assembly 30 is disposed within the shell assembly 20 and adjacent to the suction cup body 41. The magnetic surface adhesion assembly 30 is magnetically attracted to a metallic object having a contact surface.The release element 42 is installed on the shell assembly 20 and is located opposite the suction cup body 4L. The release element 42 comes into contact with the suction cup body 41 after being actuated, and . The vacuum surface adhesion between the suction cup body 41 and the contact surface is released during the contact process. The metallic object can be, but is not limited to, the surface of another device, such as a mobile phone, an electronic tablet, etc. The fastening device 10 of the present invention has dual surface adhesion and fastening effects, such as magnetic attraction and vacuum suction, and, as the shell assembly 20 has a floating structure, magnetic attraction and vacuum suction can achieve the most suitable surface adhesion effect.

[0041] When the user uses the fastening device 10 of the present invention, the fastening device 10 is first placed on the contact surface of the metallic object, and the magnetic surface adhesion assembly 30 is magnetically attached to the contact surface to initially obtain the magnetic attraction effect. Then, an external force is applied to the fastening device 10 to continuously lower the position of the suction cup body 41. During the lowering of the suction cup body 41, the air between the suction cup body 41 and the contact surface is expelled, such that the suction cup body 41 is in contact with the contact surface, and a negative pressure vacuum surface adhesion state is generated between the suction cup body 41 and the surface, thus obtaining the vacuum surface adhesion effect in a second step.Therefore, to achieve such an actuation method, the shell assembly 20 of the present invention adopts a structure of at least two parts, and two parts are respectively combined with the magnetic surface adhesion assembly 30 and the suction cup assembly 40 to meet the requirements of different stages during actuation.

[0042] As shown in Figures 2 and 4, the shell assembly 20 comprises a first shell 21, a second shell 22, and a plurality of elastic elements 23. The second shell 22 is movably connected to the first shell 21 to allow relative movement between the two. For example, the second shell 22 can move closer to or further from the first shell 21, or the first shell 21 can move closer to or further from the second shell 22. However, the two shells do not separate. A plurality of elastic elements 23 are arranged between the first shell 21 and the second shell 22, and the elastic elements 23 maximize the distance between the two shells without external force. In the present embodiment, the second shell 22 has an outer diameter greater than that of the first shell 21.The second shell 22 has an annular shape and is connected to the first shell 21 in the shape of a conical arc, the suction cup body 41 being fixed to the central area of ​​the first shell 21, and the magnetic surface adhesion assembly 30 surrounds the periphery of the suction cup body 41 and is fixed in the second shell 22. Thus, when an external force is applied to the first shell 21, the first shell 21 moves downwards and . causes the suction cup body 41 to adjust against the contact surface.

[0043] In the present invention, the shell assembly 20 also includes a separating wall 24, which is locked to an end surface of the first shell 21 facing the direction of the second shell 22. As shown in [Fig. 3], the separating wall 24 has a plurality of positioning rods 241 towards the direction of the first shell 21, and a plurality of screws 242 are used to partially penetrate the first shell 21 from the outside and be locked onto the positioning rods 241, so as to fix the first shell 21 to the separating wall 24, and there is a space between the two, and the space is used to receive the release element 42.

[0044] Furthermore, the separating wall 24 has a plurality of recessed first receiving seats 245 facing the second shell 22, and the second shell 22 has a plurality of projecting second receiving seats 222 facing the separating wall 24. The elastic element 23 is a compressible spring. As shown in [Fig. 4], the two ends of the elastic element 23 are located respectively inside the corresponding first receiving seat 245 and outside the second receiving seat 222. Although the first shell 21 and the separating wall 24 can be pressed downwards, when the external force disappears, the elastic element 23 can be used to restore the distance between the first shell 21 and the second shell 22 to its maximum, or to ensure that both retain an appropriate stiffness.

[0045] The following describes how the present invention ensures that the first hull 21 and the second hull 22 can move relative to each other without being separated. As shown in Figures 2, 3, and 5, a plurality of guide rods 221 are arranged on the second shell 22 facing the direction of the separating wall 24. The guide rods 221 can slide through the separating wall 24 without separation, such that the second shell 22 can move towards or away from the first shell 21 with the aid of the plurality of guide rods 221. In the present embodiment, there are four guide rods 221, and they are distributed at equal angles on the second shell 22. The separating wall 24 also has a plurality of guide holes 243, and a plurality of limiting screws 244 are arranged and locked onto the guide rods 221 above the separating wall 24.Since the diameter of the tip of the limiting screw 244 is greater than that of the guide hole 243, and the diameter of the guide rod 221 is smaller than that of the guide hole 243, the guide rod 221 can thus move within the guide hole 243 without separation. The second shell 22 can move towards or away from the first shell 21 smoothly by using the guide rods 221 in different positions.

[0046] The magnetic surface adhesion assembly 30 is an object having a magnetic attraction force, such as a magnet. The number of magnets may be multiple, and they are arranged in an annular shape. However, in the present embodiment, the magnetic surface adhesion assembly 30 consists of a single magnet in the shape of a circular ring. The second shell 22 is formed with a concave annular groove 223 on its end surface opposite the first shell 21. The magnetic surface adhesion assembly 30 is installed in the annular groove 223. The second shell 22 also includes a flexible pad 224. The flexible pad 224 is used to seal the annular groove 223 so that the magnetic surface adhesion assembly 30 is concealed within the second shell 22. The magnetic surface adhesion assembly 30 is distributed around the periphery of the suction cup body 4L.

[0047] The suction cup assembly 40 comprises the suction cup body 41 and the release element 42. The release element 42 is used to make contact with the upper surface of the suction cup body 41 near the edge and lift it, thus releasing the surface adhesion. The suction cup body 41 is a conical sheet that may be made of rubber or other flexible materials. The suction cup body 41 has a upward-projecting traction element 411 in its center. In this embodiment, the traction element 411 is fixed to the center of the separating wall 24, and an assembly hole 246 is provided in the center of the separating wall 24. During assembly, the traction element 411 protrudes from the separating wall 24 through the assembly hole 246, then a connecting pin 412 penetrates the traction element 411, and the suction cup body 41 is fixed to the separating wall 24.

[0048] As shown in Figures 3 and 6, the suction cup body 41 has a projecting element 413 on the upper surface of the contact edge. In the present embodiment, the projecting element 413 is an inverted U-shaped shell. This shape and position correspond to those of the release element 42. The separating wall 24 has an opening 247 at a corresponding position, and the protruding element 413 is located within the opening 247 or protrudes from the opening 247. The release element 42 is an object that is confined within the shell assembly 20 and can only cause the protruding element 413 to move. More precisely, the first shell 21 has a window 211, and the release element 42 is configured to be inside the window 211 and is restricted to moving only a short distance in the space between the separating wall 24 and the first shell 21.Furthermore, the release element 42 has a downward-facing hook 421 (like the direction of the suction cup body 41). After assembly, the hook 421 can extend into the opening 247. When an external force is applied to . The release element 42 moves towards the center of the suction cup body 41, i.e., towards the traction element 411. During this movement, the hook element 421 comes into contact with the protruding element 413, causing the edge of the suction cup body 41 to separate from the contact surface and release the surface adhesion. Consequently, the position of the protruding element 413 in the opening 247 must lie within the path of movement of the hook 421.

[0049] To ensure the stability of the release element 42 during movement and its ability to return to its initial position after the external force is removed, the suction cup assembly 40 further includes at least one spring 43. The separating wall 24 has at least one upward-projecting stop 248 and two guide pieces 249. The distance between the two guide pieces 249 corresponds to the width of the release element 42. As shown in Figures 2 and 3, the lower part of the release element 42 is formed with at least one guide groove 422. After assembly, the release element 42 is confined between the two guide pieces 249, and the stop 248 and the spring 43 are located in the guide groove 422. Thus, the release element 42 can only move towards the center of the suction cup body 41 and will not be separated from the separating wall. 24.In the absence of external force, the elasticity of the spring 43 causes the release element 42 to be in the position furthest from the tension element 411.

[0050] Next, an explanation will be given regarding the actual operation of the present invention. As shown in [Fig. 7], when the fastening device 10 is used, the fastening device 10 is first placed on a contact surface 51 of a metallic object 50. The contact surface 51 is preferably a flat and smooth surface. The magnetic surface adhesion assembly 30 and the contact surface 51 produce a preliminary magnetic fastening effect through magnetic attraction.

[0051] As shown in [Fig. 8], an external force is then applied to the first shell 21, and the separating wall 24 causes the position of the suction cup body 41 to lower continuously. During the lowering process, the air in the space between the suction cup body 41 and the contact surface is expelled, which causes the establishment of a negative pressure vacuum surface adhesion state between the suction cup body 41 and the contact surface 51.

[0052] It should be noted that, as shown in [Fig. 9], when the external force disappears, the elastic restoring force of the elastic element 23 pushes the separating wall 24 upwards as far as possible, and synchronously causes the traction element 411 to rise. This generates a negative pressure, vacuum-sealed surface adhesion force between the central area of ​​the suction cup body 41 and the contact surface 51. As shown in the Figure, sometimes only a very small gap in the central area of ​​the suction cup body 41 is needed to ensure and maintain the required state of surface adhesion in a vacuum. Apparently, this force also has the same effect when the fixing device of other electronic equipment is installed on the upper surface of the first shell 21 of the present invention.

[0053] As shown in [Fig. 10], when the fastening device 10 is to be removed, the unloaded surface adhesion must first be released. First, an external force is applied to move the release element 42 towards the traction element 411. During this movement, the hook element 421 comes into contact with the protruding element 413. As the protruding element 413 continues to move, the edge of the suction cup body 41 is pushed back. The contact surface 51 allows outside air to enter the central area of ​​the lower surface of the suction cup body 41, thus releasing the unloaded surface adhesion. Next, an external force is applied to the shell assembly 20 and overcomes the magnetic force of the magnetic surface adhesion assembly 30, so that the entire fastening device 10 can be removed from the contact surface 51.

[0054] As shown in [Fig. 11], which is a schematic view of the actual product of the present invention, reference should also be made to [Fig. 3]. The outer wall of the first shell 21, located away from the second shell 22, includes a connecting portion 212. The connecting portion 212 can be a variety of deformation structures, grooves, or shapes. It is used to function with a housing structure for an external device. As shown in [Fig. 10], a pair of housing sockets 60 are arranged here. Thanks to the housing sockets 60, the present invention can be installed on the hands-free holder of the mobile phone and for securing a mobile phone by the mounting device 10 through magnetic surface adhesion and vacuum suction.

[0055] Although the present invention has been described with reference to preferred embodiments thereof, it is obvious to a person skilled in the art that a variety of modifications and changes can be made without departing from the scope of the present invention.

Claims

Demands

1. Surface multi-adhesion fastening device (10), characterized in that it comprises: a shell assembly (20), comprising a first shell (21), a second shell (22) and a plurality of elastic elements (23), the second shell (22) being movably connected to the first shell (21) to allow the two to move relative to each other without being separated, the plurality of elastic elements (23) being arranged between the first shell (21) and the second shell (22);a suction cup assembly (40), comprising: a suction cup body (41) and a release element (42), the suction cup body (41) being disposed on the first shell (21) in an exposed manner and located on the same side as the second shell (22), the release element (42) being disposed on the first shell (21) and capable of coming into contact with the suction cup body (41) after being actuated and of releasing the suction cup body (41) from a state of surface adhesion at low pressure during a contact process; and a magnetic surface adhesion assembly (30), disposed on the second shell (22) and adjacent to the suction cup body (41).

2. A multi-surface adhesion fastening device (10) according to claim 1, characterized in that the second shell (22) is annular and connected to the first shell (21), the suction cup body (41) is fixed on a central area of ​​the first shell (21), and the magnetic surface adhesion assembly (30) is fixed inside the second shell (22) and surrounds a periphery of the suction cup body (41).

3. Surface multi-adhesion fastening device (10) according to claim 1, characterized in that the shell assembly (20) further comprises a separating wall (24), which is locked onto an end surface of the first shell (21) opposite the second shell (22), and the suction cup body (41) has a centrally convex traction element (411) and the traction element (411) is fixed to the separating wall (24).

4. A multi-surface adhesion fastening device (10) according to claim 1, characterized in that the shell assembly (20) further comprises a separating wall (24), which is locked onto an end surface of the first shell (21) opposite the second shell (22), a plurality of guide rods (221) are arranged on the second shell (22) in a direction opposite the separation wall (24), the guide rods (221) penetrate the separation wall (24) and are locked, the guide rods (221) are able to slide on the separation wall (24) and not separate from the separation wall (24), so that the second shell (22) is able to approach or move away from the first shell (21) with the help of the plurality of guide rods (221).

5. A surface multi-adhesion fastening device (10) according to claim 1, characterized in that the shell assembly (20) further comprises a separating wall (24), which is locked onto an end surface of the first shell (21) opposite the second shell (22), a plurality of first receiving seats (245) are arranged on the separating wall (24) in a direction opposite the second shell (22), a plurality of second receiving seats (222) are arranged on the second shell (22) in a direction opposite the separating wall (24), and the two ends of each elastic element (23) are respectively fixed to the corresponding first receiving seat (245) and second receiving seat (222).

6. A multi-surface adhesion fastening device (10) according to claim 1, characterized in that the second shell (22) is formed with a concave annular groove (223) on an end surface opposite the first shell (21), and the magnetic surface adhesion assembly (30) is a magnet disposed in the annular groove (223), the second shell (22) further comprises a flexible pad (224) for sealing the annular groove (223) such that the magnetic surface adhesion assembly (30) is hidden in the second shell (22).

7. A surface multi-adhesion fastening device (10) according to claim 1, characterized in that the suction cup body (41) further comprises a protruding element (413), which is located on an upper surface of the suction cup body (41) adjacent to an edge; the release element (42) is limited on the shell assembly (20) and is only capable of causing a displacement of the protruding element (413), and the release element (42) has a downward hook (421); when an external force is applied to move the release element (42), the hook (421) comes into contact with the protruding element (413) during the displacement, and the protruding element (413) causes the edge of the suction cup body (41) to separate from a contact surface to release the surface adhesion state in the vacuum.

8.

9.

10. Surface multi-adhesion fastening device (10) according to claim 7, characterized in that the first shell (21) has a window (211), and the shell assembly (20) further includes a separating wall (24), which is locked onto an end surface of the first shell (21) opposite the second shell (22), the release element (42) is disposed in the window (211) and is restricted to move only in a space between the separating wall (24) and the first shell (21), the separating wall (24) further includes a through opening (247), and the protruding element (413) is located in a movement path of the hook (421) through the opening (247). A surface multi-adhesion fastening device (10) according to claim 8, characterized in that the release element (42) further comprises at least one spring (43), the separating wall (24) has at least one stop (248) projecting in the direction opposite the first shell (21), at least one guide groove (422) is disposed on a lower part of the release element (42); when the stop (248) and the spring (43) are both located in the guide groove (422), the release element (42) is restricted to moving only in a space between the separating wall (24) and the first shell (21), and the release element (42) is controlled by the spring (43) in the absence of an external force to move away from the center of the suction cup body (41). Surface multi-adhesion fastening device (10) according to claim 1, characterized in that an outer wall of the first shell (21) away from the second shell (22) has a connecting part (212).

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