Negative pressure adsorption fixing device

Abstract

The utility model provides a negative pressure adsorption fixing device. The negative pressure adsorption fixing device comprises a shell, an adsorption holding piece, a negative pressure forming assembly and a sealing piece. A containing cavity is formed in the shell. The holding piece is provided with an abutting face. An adsorption cavity is concavely formed in the propping surface and is communicated with the accommodating cavity; a mounting structure is arranged on the holding surface; the sealing element is connected with the mounting structure so as to be arranged on the abutting surface, the sealing element is used for abutting against the adsorption surface, and the sealing element can elastically deform so as to be matched with the surface of the adsorption surface, so that the adsorption cavity, the sealing element and the adsorption surface are matched to form a closed space. The negative pressure forming assembly is used for generating negative pressure in the containing cavity so that negative pressure can be formed in the closed space. The negative pressure adsorption fixing device is adsorbed on a rough surface and is not easy to fall off.

Description

Technical Field

[0001] This application relates to the field of suction device technology, specifically to a negative pressure adsorption fixing device. Background Technology

[0002] A negative pressure adsorption fixing device is a device that holds a suction element against an adsorption surface and uses negative pressure generated inside the suction element to firmly adhere it to the adsorption surface. Because the suction element generates adsorption force through internal negative pressure, the airtightness of the space formed by the suction element and the adsorption surface is required. If air enters the sealed space, the suction element will detach from the adsorption surface.

[0003] However, existing negative pressure adsorption fixing devices can only adsorb onto smooth adsorption surfaces. When the negative pressure adsorption fixing device adsorbs onto a rough surface, the surface of the rough surface is uneven, and it is difficult for the holding part and the adsorption surface to fit together to form a sealed space, which makes it easy for the negative pressure adsorption fixing device to fall off on the rough surface. Utility Model Content

[0004] This application provides a negative pressure adsorption fixing device, which solves the problem that the negative pressure adsorption fixing device is easy to fall off when adsorbed on a rough surface.

[0005] To address the aforementioned technical problems, this application provides a negative pressure adsorption fixing device, including a housing, a holding member, a negative pressure forming assembly, and a sealing member. The housing has an internal receiving cavity. The holding member has a supporting surface; an adsorption cavity is recessed on the supporting surface, communicating with the receiving cavity; a mounting structure is provided on the holding surface; the sealing member is connected to the mounting structure and disposed on the supporting surface. The sealing member is used to abut against the adsorption surface and is elastically deformable to fit against the surface of the adsorption surface, so that the adsorption cavity, the sealing member, and the adsorption surface cooperate to form a sealed space. The negative pressure forming assembly generates negative pressure in the receiving cavity, thereby creating negative pressure in the sealed space.

[0006] In one embodiment, the sealant is a gel.

[0007] In one embodiment, the mounting structure includes a receiving groove, and a seal is installed within the receiving groove.

[0008] In one embodiment, the receiving groove is annular in shape and is arranged around the outer periphery of the adsorption cavity, and the sealing element is annular in shape.

[0009] In one embodiment, the negative pressure adsorption fixing device further includes a release film, which is placed on the side of the seal away from the outer shell to protect the seal.

[0010] In one embodiment, the negative pressure adsorption fixing device further includes a solar panel and a battery. The solar panel is mounted on the housing and has a light-absorbing surface, at least a portion of which is exposed outside the housing. The solar panel is used to convert solar energy into electrical energy. The battery is used to power the negative pressure forming component and is capable of storing the electrical energy converted by the solar panel.

[0011] In one embodiment, the negative pressure adsorption fixing device further includes a charging interface for connecting to an external power source to supply power to the battery.

[0012] In one embodiment, the negative pressure adsorption fixing device further includes a first charging circuit, a second charging circuit, and a comparator. The first charging circuit includes a first switching module for connecting to a solar panel. The second charging circuit includes a second switching module for connecting to an external power source. One end of the first switching module is connected to the solar panel, and the other end is connected to a battery. One end of the second switching module is connected to the external power source, and the other end is connected to the battery. The first input terminal of the comparator is connected to the first charging circuit, the second input terminal of the comparator is connected to the second charging circuit, and the output terminal of the comparator is used to output a comparison result. The first switching module closes or opens in response to the comparison result of the comparator, and the second switching module closes or opens in response to the comparison result of the comparator.

[0013] In one embodiment, the first charging circuit further includes a first protection module, and the second charging circuit further includes a second protection module; one end of the first protection module is connected to the first switch module, and the other end of the first protection module is connected to the battery; one end of the second protection module is connected to the second switch module, and the other end of the second protection module is connected to the battery; the first protection module and the second protection module are used to prevent reverse current.

[0014] In one embodiment, the negative pressure adsorption fixing device further includes a magnetic element, which is mounted on the housing and is used to magnetically adsorb the object to be fixed.

[0015] In one embodiment, the magnetic element is rotatable relative to the housing, allowing it to rotate closer to and further away from the housing to adjust the angle between the magnetic element and the housing.

[0016] In one embodiment, the housing has a first end and a second end opposite to each other along the axial direction of the housing, a holding member is mounted on the first end of the housing, and a magnetic member is mounted on the second end of the housing.

[0017] In one embodiment, the negative pressure adsorption fixing device further includes a rotating component, which is rotatably connected to the outer shell via a rotating shaft; a magnetic component is fixedly installed on the rotating component.

[0018] In one embodiment, a groove is provided on the side of the rotating member away from the housing, and at least a portion of the magnetic member is installed in the groove.

[0019] In one embodiment, the negative pressure forming assembly includes a drive member, a piston, and a cylinder. The cylinder has a receiving cavity inside, which communicates with a receiving chamber. The piston is disposed in the receiving cavity. The drive member is used to drive the piston to move the piston and generate negative pressure in the receiving chamber.

[0020] In one embodiment, the negative pressure adsorption fixing device further includes an opening component, which includes a first movable part and a switch. One end of the first movable part is disposed outside the receiving cavity, and the other end of the first movable part is disposed inside the receiving cavity. The first movable part can move toward the inside of the receiving cavity to trigger the switch to activate the negative pressure forming component.

[0021] In one embodiment, the movement direction of the first movable part is perpendicular to the abutting surface; when the holding member is adsorbed on the adsorption surface, the first movable part can abut against the adsorption surface and move into the receiving cavity under the pressure of the adsorption surface.

[0022] In one embodiment, the switching element is a bidirectional changeover switch, and the first movable part is also capable of moving toward the outside of the receiving cavity to actuate the bidirectional changeover switch to activate the negative pressure forming assembly.

[0023] In one embodiment, the negative pressure adsorption fixing device further includes an air intake assembly for communicating the receiving cavity with the outside of the housing, so that the adsorption member can be separated from the adsorption surface.

[0024] In one embodiment, the air intake assembly includes a second movable part, one end of which is disposed outside the housing and the other end of which is disposed inside the housing; the second movable part can open the air passage between the receiving cavity and the outside of the housing when subjected to pressure.

[0025] This application provides a negative pressure adsorption fixing device, including a housing, a holding member, a negative pressure forming component, and a sealing member. The housing has an internal receiving cavity. The holding member has a supporting surface; an adsorption cavity is recessed on the supporting surface, communicating with the receiving cavity; a mounting structure is provided on the holding surface; the sealing member is connected to the mounting structure and disposed on the supporting surface. The sealing member is used to abut against the adsorption surface and is elastically deformable to fit the surface of the adsorption surface, so that the adsorption cavity, the sealing member, and the adsorption surface cooperate to form a sealed space. The negative pressure forming component generates negative pressure in the receiving cavity to create negative pressure in the sealed space. This negative pressure adsorption fixing device, by providing a sealing member on the supporting surface of the holding member, and the sealing member having strong deformability, allows the sealing member to deform into a matching uneven shape according to the uneven contour of the adsorption surface when the negative pressure adsorption fixing device abuts against a rough adsorption surface, thus fitting the surface of the adsorption surface. This strengthens the sealing of the space formed between the holding member and the adsorption surface, making the negative pressure adsorption fixing device less prone to detachment from the rough surface. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a negative pressure adsorption fixing device provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the negative pressure adsorption and fixation device provided in one embodiment of this application from another perspective.

[0028] Figure 3 for Figure 1 A schematic diagram of the exploded structure;

[0029] Figure 4 A cross-sectional view of a suction member and a sealing member provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the structure of a negative pressure adsorption fixing device provided in another embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the structure of a negative pressure adsorption and fixing device for removing the holding element provided in an embodiment of this application;

[0032] Figure 7 A block diagram of the charging circuit of a negative pressure adsorption fixing device provided in an embodiment of this application;

[0033] Figure 8 A block diagram of the connection structure of a comparator provided in an embodiment of this application;

[0034] Figure 9 This is a schematic diagram of the structure for rotating a magnetic component according to an embodiment of this application;

[0035] Figure 10 for Figure 9 A schematic diagram of the exploded structure;

[0036] Figure 11 This is a schematic diagram of the structure of the lower housing, negative pressure forming component, opening component, and air intake component provided in an embodiment of this application;

[0037] Figure 12 This is a schematic diagram of the negative pressure forming component, opening component, and air intake component provided in an embodiment of this application.

[0038] Figure 13 This is a schematic diagram of the structure of a negative pressure forming component (exploded view), an opening component, and an air intake component provided in an embodiment of this application. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0040] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0041] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0042] This application provides a negative pressure adsorption fixing device, which can be used to adsorb onto an adsorption surface. Furthermore, by providing a connecting part on the negative pressure adsorption fixing device, the component to be fixed can be fixed to the device via the connecting part, thereby fixing the component to the adsorption surface. The connection method between the connecting part and the component to be fixed can be, but is not limited to, snap-fit ​​connection, magnetic connection, interference fit connection, etc. In one application scenario, this negative pressure adsorption fixing device can be used in a vehicle environment, where it can be fixed to the vehicle body, and electronic devices can be fixed to the device via the connecting part, allowing users to view the content displayed on the electronic devices. Of course, this negative pressure adsorption fixing device is not limited to vehicle environments and can be used in any application scenario requiring the fixing of a component.

[0043] Please refer to Figure 1-5 The negative pressure adsorption fixing device includes a housing 10, a suction member 20, a negative pressure forming assembly 30, and a sealing member 40. The housing 10 has an internal receiving cavity 11. Specifically, the housing 10 may include an upper housing and a lower housing, which are detachably connected and cooperate to form the receiving cavity 11.

[0044] The suction member 20 is used for adsorption onto the adsorption surface. The suction member 20 is mounted on the housing 10. Specifically, the suction member 20 can be mounted on the end face of the housing 10 along the axial direction, or it can be mounted on the annular sidewall of the housing 10. Figure 2 As shown, the end of the suction member 20 away from the outer shell 10 has a supporting surface 21. An adsorption cavity 22 is recessed on the supporting surface 21, and the adsorption cavity 22 communicates with the receiving cavity 11, meaning that the internal gas pressure of the adsorption cavity 22 and the receiving cavity 11 is the same. The suction member 20 can be, for example, a suction cup or an adsorption ring. To prevent air leakage in the sealed space formed by the suction member 20 and the adsorption surface, the suction member 20 can be made of a flexible material. Flexible materials have deformable properties, allowing the suction member 20 to better conform to the adsorption surface.

[0045] A mounting structure is provided on the holding surface. The mounting structure is used to fix the sealing element 40. The sealing element 40 is connected to the mounting structure and is disposed on the abutment surface 21. The sealing element 40 is used to abut against the adsorption surface. The sealing element 40 can elastically deform to fit the surface of the adsorption surface, so that the adsorption cavity 22, the sealing element 40 and the adsorption surface cooperate to form a sealed space. For example, in one embodiment, the sealing element 40 can be a colloid, such as a semi-solid, soft colloid like a gel. Compared with harder colloids such as rubber, semi-solid, soft colloids have stronger elastic deformation ability and can better deform into the uneven shape of the adsorption surface.

[0046] The negative pressure forming component 30 is used to generate negative pressure in the receiving cavity 11. Since the receiving cavity 11 is connected to the sealed space, the negative pressure forming component 30 can create negative pressure in the sealed space, so that the suction member 20 can generate negative pressure suction. The negative pressure forming component 30 can stably generate negative pressure in the sealed space by being energized. Compared with natural suction (such as squeezing out the air in the sealed space to make the suction member 20 adsorb onto the suction surface), the negative pressure generating component 30 generates negative pressure in a more stable and reliable way.

[0047] The negative pressure adsorption fixing device has a sealing element 40 on the abutting surface 21 of the holding member 20. The sealing element 40 has a strong deformability. Therefore, when the negative pressure adsorption fixing device is held against the rough adsorption surface, the sealing element 40 can be deformed into a matching uneven shape according to the uneven contour of the adsorption surface to fit the surface of the adsorption surface. This allows the holding member 20 to strengthen the airtightness of the space formed between itself and the adsorption surface through the sealing element 40, making it less likely for the negative pressure adsorption fixing device to fall off the rough surface.

[0048] Please refer to Figure 2 and Figure 4 As shown, in one embodiment, the mounting structure includes a receiving groove 211, and a sealing member 40 is mounted in the receiving groove 211. The connection between the sealing member 40 and the suction member 20 is more reliable, preventing the sealing member 40 from falling off the suction member 20. The thickness of the sealing member 40 can be slightly greater than the depth of the receiving groove 211, so that when the negative pressure adsorption fixing device abuts against the adsorption surface, the adsorption surface abuts against the sealing member 40. Compared to the suction member 20 abutting against the adsorption surface, the sealing effect of the sealing space is better when the sealing member 40 abuts against the sealing member 40.

[0049] In one embodiment, the receiving groove 211 is annular in shape and surrounds the outer periphery of the adsorption cavity 22, and the sealing member 40 is also annular in shape. By making the sealing member 40 annular in shape, the outer periphery of the adsorption cavity 22 can be well sealed to the adsorption surface through the sealing member 40, thereby improving the sealing performance of the enclosed space. The annular shape can be, for example, a circular ring, a square ring, or other irregularly shaped rings, as long as the ring can be closed to form a closed shape.

[0050] Please refer to Figure 5 In one embodiment, the negative pressure adsorption fixing device further includes a release film 50, which covers the side of the sealing member 40 away from the outer casing 10 to protect the sealing member 40. In its factory condition, the release film 50 protects the sealing member 40 during transportation and storage, preventing dust from adhering to its surface. If too many solid particles adhere to the surface of the sealing member 40, the sealing performance of the sealed space may be weakened, resulting in poor adsorption performance of the negative pressure adsorption fixing device.

[0051] Please refer to Figure 3 The negative pressure adsorption fixing device also includes a solar panel 60 and a battery. The solar panel 60 is a component capable of converting solar energy into electrical energy. The solar panel 60 is mounted on the housing 10 and has a light-absorbing surface 61, at least a portion of which is exposed outside the housing 10. Preferably, to improve the energy conversion efficiency of the solar panel 60, the entire light-absorbing surface 61 is exposed outside the housing 10, allowing the solar panel 60 to fully convert solar energy. The battery is used to power the negative pressure forming component 30 and can store the electrical energy converted by the solar panel 60. By installing the solar panel 60 on the housing 10, during daytime driving, the solar panel 60 can convert solar energy into electrical energy and store it in the battery. That is, during the day, the solar panel 60 can continuously power the battery, allowing the battery to continuously power the negative pressure forming component 30, thus solving the problem of insufficient battery life in the negative pressure adsorption fixing device. Users do not need to frequently use a power source for charging, improving the user experience. When not in use during the day, the solar panel 60 can convert solar energy into electrical energy to replenish the battery's power loss when it is naturally placed, so that the battery of the negative pressure adsorption fixing device can also have sufficient power supply at night.

[0052] like Figure 3 and Figure 6 As shown, in one embodiment, the outer casing 10 has a first end face 121 and a second end face 131 that are opposite to each other along the axial direction of the outer casing 10. A suction member 20 is mounted on the first end face 121 of the outer casing 10. The cavity wall of the suction chamber 22 has a first connecting hole 221, and the first end face 121 of the outer casing 10 has a second connecting hole 1211. The suction chamber 22 communicates with the receiving cavity 11 through the first connecting hole 221 and the second connecting hole 1211. A solar panel 60 is mounted on the second end face 131 of the outer casing 10. Since the suction member 20 is mounted on the first end face 121 of the outer casing 10, the first end face 121 of the outer casing 10 typically faces the vehicle body, and the second end face 131 of the outer casing 10 faces the vehicle window. Mounting the solar panel 60 on the second end face 131 of the outer casing 10 facilitates the absorption of solar energy by the solar panel 60 through the vehicle window.

[0053] like Figure 3 As shown, in one embodiment, the negative pressure adsorption fixing device further includes a charging interface 70, which is used to connect to an external power source to supply power to the battery. Even if the solar panel 60 can charge the battery, the battery's stored power may still be depleted during long nighttime trips. Therefore, in this embodiment, the negative pressure adsorption fixing device can simultaneously provide both solar panel 60 charging and external power source charging, improving the reliability of the negative pressure adsorption fixing device during nighttime trips and trips on cloudy or rainy days.

[0054] Further, please refer to Figure 7 , Figure 8 The negative pressure adsorption fixing device also includes a first charging circuit 81, a second charging circuit 82, and a comparator 83. The first charging circuit 81 includes a first switch module 811, which is used to connect to the solar panel 60. The second charging circuit 82 includes a second switch module 821, which is used to connect to an external power source.

[0055] One end of the first switch module 811 is connected to the solar panel 60, and the other end is connected to the battery. One end of the second switch module 821 is connected to an external power source, and the other end is connected to the battery. The first input terminal of the comparator 83 is connected to the first charging circuit 81, and the second input terminal of the comparator 83 is connected to the second charging circuit 82. The output terminal of the comparator 83 is used to output the comparison result, which can be a comparison of the charging current of the first charging circuit 81 and the charging current of the second charging circuit 82. The first switch module 811 closes or opens in response to the comparison result of the comparator 83, and the second switch module 821 closes or opens in response to the comparison result of the comparator 83.

[0056] For example, when the solar panel 60 is charging the battery and the user is not connected to an external power source, the charging current of the first charging circuit 81 is greater than the charging current of the second charging circuit 82. The comparator 83 outputs a first comparison result, the first switch module 811 closes in response to the first comparison result of the comparator 83, and the second switch module 821 opens in response to the second comparison result of the comparator 83. When an external power source is connected, the charging current of the second charging circuit 82 is greater than the charging current of the first charging circuit 81. The comparator 83 outputs a second comparison result, the first switch module 811 opens in response to the first comparison result of the comparator 83, and the second switch module 821 closes in response to the second comparison result of the comparator 83. That is, when the user connects to an external power source, the second charging circuit 82 containing the external power source is ensured to be connected, while the first charging circuit 81 containing the solar panel 60 is disconnected, avoiding the simultaneous operation of the two charging methods.

[0057] Furthermore, the first charging circuit 81 further includes a first protection module 812, and the second charging circuit 82 further includes a second protection module 822. One end of the first protection module 812 is connected to the first switch module 811, and the other end of the first protection module 812 is connected to the battery. One end of the second protection module 822 is connected to the second switch module 821, and the other end of the second protection module 822 is connected to the battery. The first protection module 812 and the second protection module 822 are used to prevent reverse current. The first protection module 812 and the second protection module 822 can be, for example, diodes.

[0058] In one embodiment, such as Figure 1-3 The negative pressure adsorption fixing device also includes a magnetic element 91, which is mounted on the housing 10. Preferably, the magnetic element 91 is mounted on the end of the housing 10 away from the first end face 121. In one embodiment, the magnetic element 91 can be mounted on the side of the solar panel 60 away from the housing 10, and the magnetic element 91 exposes at least a portion of the light-absorbing surface 61. For example, the magnetic element 91 can be configured as a ring or an arc.

[0059] The magnetic component 91 is used for magnetic adsorption with the component to be fixed. That is, in this embodiment, the connecting part is configured as the magnetic component 91. In applications involving fixing electronic devices, the holding component 20 can hold the vehicle body, and the magnetic component 91 can magnetically hold the electronic device; alternatively, the magnetic component 91 can magnetically hold the vehicle body, and the holding component 20 can hold the electronic device. Typically, the casing of the electronic device is made of metal, and the metal casing can magnetically adsorb with the magnetic component 91. Alternatively, the electronic device may have internal metal or magnetic components that can magnetically adsorb with the magnetic component 91. This embodiment utilizes the characteristics typically found in electronic devices to reliably connect electromagnetic devices to a negative pressure adsorption fixing device.

[0060] Furthermore, the negative pressure adsorption fixing device may also include a wireless charging coil, which can wirelessly charge the electronic device when the magnetic component 9150 magnetically adsorbs the electronic device.

[0061] In one embodiment, such as Figure 9 and Figure 10 The magnetic component 91 can rotate relative to the outer casing 10, allowing it to move closer to and further away from the casing 10 to adjust the angle between them. Since the outer casing 10 is fixed to the adsorption surface by the suction member 20, and the outer casing 10 and the adsorption surface are relatively fixed, the rotation of the magnetic component 91 relative to the outer casing 10 is equivalent to the rotation of the magnetic component 91 relative to the adsorption surface. This rotation adjusts the angle between the magnetic component 91 and the adsorption surface. In a vehicle environment, when the outer casing 10 is fixed to the vehicle body by the suction member 20, the user can adjust the angle of the electronic device fixed on the magnetic component 91 relative to the driver's seat by driving the magnetic component 91 to rotate relative to the outer casing 10. This allows the user to select a suitable angle for the electronic device's display screen to face them. This adjustment method does not require the user to remove the negative pressure adsorption fixing device, providing convenience. Furthermore, the large rotation angle of the magnetic component 91 relative to the outer casing 10 means the angle of the electronic device relative to the user is not overly limited by the vehicle's structure, satisfying the user's need for a wide range of adjustments to the angle of the device relative to the driver's seat.

[0062] Therefore, the negative pressure adsorption fixing device of this application achieves a detachable connection between the negative pressure adsorption fixing device and the object to be fixed by installing the magnetic component 91 on the outer shell 10 and magnetically adsorbing the component 91 with the object to be fixed. Furthermore, the magnetic component 91 can be magnetically connected to the object to be fixed regardless of whether it is near or away from the shell; the object to be fixed can also rotate at any angle along the magnetic adsorption contact surface, allowing for greater variation in the relative position between the negative pressure adsorption fixing device and the object to be fixed. Moreover, by allowing the magnetic component 91 to rotate relative to the outer shell 10 to adjust the angle between the magnetic component 91 and the outer shell 10, the angle of the object to be fixed relative to the adsorption surface can be adjusted without removing the negative pressure adsorption fixing device, thus meeting the user's need for convenient and wide-range adjustment of the angle of the object to be fixed relative to the adsorption surface.

[0063] Please refer to Figure 9 and Figure 10 In one embodiment, the outer casing 10 has a first end 12 and a second end 13 opposite to each other along its axial direction. A holding member 20 is mounted on the first end 12 of the outer casing 10, and a magnetic member 91 is mounted on the second end 13 of the outer casing 10. The first end 12 includes a first end face 121 and a portion of an annular sidewall of the outer casing 10 near the first end face 121. The second end 13 includes a second end face 131 and a portion of an annular sidewall of the outer casing 10 near the second end face 131. By mounting the holding member 20 and the magnetic member 91 at opposite ends of the outer casing 10, the holding member 20 is generally held on the adsorption surface, while the magnetic member 91 is positioned further away from the adsorption surface. This reduces the likelihood of interference from the adsorption surface during rotation, allowing for a larger possible rotation angle for the magnetic member 91.

[0064] In this embodiment, the magnetic component 91 rotates relative to the outer casing 10 along a rotation axis 93, the axis of which is perpendicular to the axis of the outer casing 10. In one embodiment, the outer casing 10 is generally cylindrical, and the axis of the rotation axis 93 is perpendicular to the axis of the cylinder. The rotation angle α between the magnetic component 91 and the outer casing 10 can be 0 < α ≤ 270 degrees. In one embodiment, the second end face 131 of the outer casing 10 is set as a plane. When the magnetic component 91 is in the initial state, it is stacked on the second end face 131, and the angle between the side of the magnetic component 91 closest to the second end face 131 and the second end face 131 is 0°. When the magnetic component 91 starts to rotate from the initial state, it rotates in a direction away from the second end face 131.

[0065] like Figure 9 , 10As shown, in one embodiment, the negative pressure adsorption fixing device further includes a rotating member 92, which is rotatably connected to the outer casing 10 via a rotating shaft 93. A magnetic member 91 is fixedly mounted on the rotating member 92. Since it is difficult to change the structure of the magnetic member 91 to mount the rotating shaft 93, this embodiment uses a method of fixing the magnetic member 91 to the rotating member 92, so that the magnetic member 91 can be rotatably connected to the outer casing 10. The magnetic member 91 can be mounted on the rotating member 92 in a non-detachable or detachable manner. In one embodiment, a groove is provided on the side of the rotating member 92 away from the outer casing 10, and at least a portion of the magnetic member 91 is installed in the groove. A cover can be provided on the groove, which can act as a protective cover to protect the magnetic member 91 inside the rotating member 92. In other embodiments, the magnetic member 91 can also be embedded in the rotating member 92, or the magnetic member 91 can be set on the surface of the rotating member 92 by means of adhesive or other methods.

[0066] like Figure 11-13 In one embodiment, the negative pressure forming assembly 30 includes a drive member 31, a piston 32, and a cylinder 33. The cylinder 33 has an internal receiving cavity that communicates with a receiving cavity 11, and the piston 32 is disposed within the receiving cavity. The drive member 31 drives the piston 32 to move, thereby generating negative pressure within the receiving cavity 11. Since the negative pressure forming assembly 30 is driven by the drive member 31, the user can control whether the negative pressure forming assembly 30 is working by controlling the start and stop of the drive member 31.

[0067] The driving component 31 can be an electric motor. The output shaft of the electric motor can drive the cylinder piston 32 to move through a transmission mechanism, for example, by driving the cylinder piston 32 to move back and forth through a crank mechanism.

[0068] like Figure 11-13 In one embodiment, the negative pressure adsorption fixing device further includes an opening component 111. The opening component 111 includes a first movable part 1111 and a switch element 1112. One end of the first movable part 1111 is disposed outside the receiving cavity 11, and the other end is disposed inside the receiving cavity 11. The first movable part 1111 can move towards the interior of the receiving cavity 11 to activate the switch element 1112, thereby activating the negative pressure forming component 30. Thus, the user can operate the first movable part 1111 from outside the housing 10 to activate the negative pressure forming component 30, facilitating user manipulation of the first movable part 1111 and allowing the user to decide when to perform negative pressure adsorption.

[0069] In one embodiment, the movement direction of the first movable part 1111 is perpendicular to the abutment surface 21. When the suction member 20 is adsorbed onto the adsorption surface, the first movable part 1111 can abut against the adsorption surface and move into the receiving cavity 11 under the pressure of the adsorption surface, thereby activating the negative pressure forming component 30. Thus, when the user presses the suction member 20 onto the adsorption surface, the first movable part 1111 can be activated automatically, allowing the negative pressure forming component 30 and the user's pressing action to be performed simultaneously. The user does not need to manipulate the first movable part 1111, thereby simplifying the activation process of the negative pressure forming component 30. Preferably, the portion of the first movable part 1111 located outside the housing 10 is disposed inside the adsorption cavity 22 of the suction member 20. Of course, in other embodiments, the portion of the first movable part 1111 located outside the housing 10 can also be disposed outside the adsorption cavity 22.

[0070] In one embodiment, the switch 1112 is a bidirectional changeover switch, and the first movable part 1111 can also move outward toward the receiving cavity 11 to activate the bidirectional changeover switch, thereby activating the negative pressure forming assembly 30. Since the suction member 20 may loosen during the suction process, when it does, the user needs to press the negative pressure adsorption fixing device again, which is inconvenient. By providing a bidirectional changeover switch, the first movable part 1111 can activate the negative pressure forming assembly 30 when pressed or released, thereby preventing the suction member 20 from loosening and allowing it to adhere more stably to the adsorption surface.

[0071] like Figure 11-13 In one embodiment, the negative pressure adsorption fixing device further includes an air intake assembly 112, which connects the receiving cavity 11 to the outside of the outer shell 10, allowing the suction member 20 to separate from the adsorption surface. By providing the air intake assembly 112, the user can actively and smoothly separate the suction member 20 from the adsorption surface. For example, the air intake assembly 112 includes a second movable part 1121 and a blocking part. One end of the second movable part 1121 is located outside the outer shell 10, and the other end is located inside the outer shell 10. When the second movable part 1121 is subjected to pressure, it can move the blocking part to connect the air passage between the receiving cavity 11 and the outside of the outer shell 10.

[0072] In other embodiments, the negative pressure adsorption fixing device can also be activated by pressing a button to disconnect the circuit of the negative pressure forming component 30, thereby stopping the negative pressure forming component 30 from working and allowing the user to remove the suction member 20 from the adsorption surface.

[0073] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A negative pressure adsorption fixing device, characterized in that, include: An outer casing, the interior of which has a receiving cavity; A suction member, wherein the suction member has a holding surface; The supporting surface is recessed with an adsorption cavity, which communicates with the receiving cavity; the holding surface has an installation structure. A sealing element is connected to the mounting structure and disposed on the abutting surface. The sealing element is used to abut against the adsorption surface. The sealing element is elastically deformable to fit the surface of the adsorption surface, so that the adsorption cavity, the sealing element and the adsorption surface cooperate to form a sealed space. The sealing element is a colloid. And a negative pressure forming component, the negative pressure forming component being used to generate negative pressure in the containment cavity so as to form negative pressure in the sealed space.

2. The negative pressure adsorption fixing device according to claim 1, characterized in that, The mounting structure includes a receiving groove, and the seal is installed in the receiving groove.

3. The negative pressure adsorption fixing device according to claim 2, characterized in that, The receiving groove is annular in shape and is arranged around the outer periphery of the adsorption cavity; the sealing element is also annular in shape.

4. The negative pressure adsorption fixing device according to claim 1, characterized in that, It also includes a release film, which is applied to the side of the seal away from the housing to protect the seal.

5. The negative pressure adsorption fixing device according to claim 1, characterized in that, It also includes a solar panel and a battery. The solar panel is mounted on the housing and has a light-absorbing surface, at least a portion of which is exposed outside the housing. The solar panel is used to convert solar energy into electrical energy. The battery is used to supply power to the negative pressure forming component and is capable of storing the electrical energy converted by the solar panel.

6. The negative pressure adsorption fixing device according to claim 5, characterized in that, It also includes a charging interface for connecting to an external power source to supply power to the battery.

7. The negative pressure adsorption fixing device according to claim 6, characterized in that, It also includes a first charging circuit, a second charging circuit, and a comparator. The first charging circuit includes a first switching module and is used to connect to the solar panel. The second charging circuit includes a second switching module and is used to connect to the external power supply. One end of the first switch module is connected to the solar panel, and the other end of the first switch module is used to connect to the battery; one end of the second switch module is connected to the external power supply, and the other end of the second switch module is used to connect to the battery; the first input terminal of the comparator is connected to the first charging circuit, the second input terminal of the comparator is connected to the second charging circuit, and the output terminal of the comparator is used to output the comparison result; the first switch module closes or opens in response to the comparison result of the comparator, and the second switch module closes or opens in response to the comparison result of the comparator.

8. The negative pressure adsorption fixing device according to claim 7, characterized in that, The first charging circuit further includes a first protection module, and the second charging circuit further includes a second protection module; one end of the first protection module is connected to the first switch module, and the other end of the first protection module is connected to the battery; one end of the second protection module is connected to the second switch module, and the other end of the second protection module is connected to the battery; the first protection module and the second protection module are used to prevent reverse current.

9. The negative pressure adsorption fixing device according to claim 1, characterized in that, It also includes a magnetic component, which is mounted on the housing and is used to magnetically attract the component to be fixed.

10. The negative pressure adsorption fixing device according to claim 9, characterized in that, The magnetic component is rotatable relative to the outer casing, allowing it to rotate closer to and further away from the outer casing to adjust the angle between the magnetic component and the outer casing.

11. The negative pressure adsorption fixing device according to claim 10, characterized in that, The housing has a first end and a second end opposite to each other along the axial direction of the housing, the holding member is installed at the first end of the housing, and the magnetic member is installed at the second end of the housing.

12. The negative pressure adsorption fixing device according to claim 10, characterized in that, The negative pressure adsorption fixing device also includes a rotating component, which is rotatably connected to the outer shell via a rotating shaft; the magnetic component is fixedly installed on the rotating component.

13. The negative pressure adsorption fixing device according to claim 12, characterized in that, The rotating component has a groove on the side away from the outer casing, and at least a portion of the magnetic component is installed in the groove.

14. The negative pressure adsorption fixing device according to claim 1, characterized in that, The negative pressure forming assembly includes a driving member, a cylinder plug, and a cylinder barrel. The cylinder barrel has a receiving cavity inside, which communicates with the receiving cavity. The cylinder plug is disposed in the receiving cavity. The driving member is used to drive the cylinder plug to move the cylinder plug and generate negative pressure in the receiving cavity.

15. The negative pressure adsorption fixing device according to claim 1, characterized in that, It also includes an opening component, which includes a first movable part and a switch. One end of the first movable part is disposed outside the receiving cavity, and the other end of the first movable part is disposed inside the receiving cavity. The first movable part can move toward the inside of the receiving cavity to activate the switch, thereby activating the negative pressure forming component.

16. The negative pressure adsorption fixing device according to claim 15, characterized in that, The movement direction of the first movable part is perpendicular to the abutting surface; when the suction member is adsorbed on the suction surface, the first movable part can abut against the suction surface and move into the cavity under the pressure of the suction surface.

17. The negative pressure adsorption fixing device according to claim 15, characterized in that, The switching element is a bidirectional changeover switch, and the first movable part can also move toward the outside of the receiving cavity to activate the bidirectional changeover switch and start the negative pressure forming assembly.

18. The negative pressure adsorption fixing device according to claim 1, characterized in that, It also includes an air intake assembly for communicating the receiving cavity with the outside of the housing, so that the suction member can be separated from the suction surface.

19. The negative pressure adsorption fixing device according to claim 18, characterized in that, The air intake assembly includes a second movable part, one end of which is disposed outside the housing and the other end of which is disposed inside the housing; the second movable part can open the air passage between the receiving cavity and the outside of the housing when subjected to pressure.

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