Negative pressure suction-based fixing device

Abstract

A negative pressure suction-based fixing device. The negative pressure suction-based fixing device comprises a housing (10), a holding member (20), a negative pressure forming assembly (30), a solar panel (40), and a battery. An accommodating cavity (11) is provided inside the housing (10); the holding member (20) is configured to be suctioned on a suction surface; the end of the holding member (20) away from the housing (10) is provided with a suction cavity (21), and the suction cavity (21) is in communication with the accommodating cavity (11); the suction cavity (21) is used to cooperate with the suction surface to form a closed space; the negative pressure forming assembly (30) is used for generating a negative pressure in the accommodating cavity (11), so that a negative pressure is formed in a closed space; the solar panel (40) is mounted on the housing (10), the solar panel (40) is provided with a light absorbing surface (41), at least part of the light absorbing surface (41) is exposed out of the housing (10), and the solar panel (40) is used for converting solar energy into electric energy; and the battery is used for supplying power to the negative pressure forming assembly (30), and the battery can store electric energy obtained by conversion by the solar panel (40). In the negative pressure suction-based fixing device, power can be continuously supplied to the battery by means of the solar panel (40), thereby alleviating the problem of insufficient battery life of the negative pressure suction-based fixing device.

Description

Negative pressure adsorption fixing device TECHNICAL FIELD

[0001] The present application relates to the technical field of holding device, in particular to a negative pressure adsorption fixing device. BACKGROUND

[0002] During driving, drivers often need to place electronic devices in the field of view so that the drivers can watch navigation and road conditions; sometimes, passengers also need to free their hands and fix electronic devices on the vehicle body to watch videos displayed by the electronic devices. Usually, electronic devices can be fixed on the vehicle body by a support or an adsorption device. The support is limited to the structure of the vehicle body and can only be installed at a specified position of the vehicle body, while the adsorption device can be adsorbed on more positions of the vehicle body due to the negative pressure adsorption on the vehicle body, and the position of the adsorption device for fixing the electronic device is more flexible than that of the support.

[0003] However, during a long driving process, the battery in the adsorption device often has the problem of insufficient endurance, and the user needs to charge the adsorption device frequently using a power source, which brings great inconvenience to the user. CONTENT OF THE UTILITY MODEL

[0004] The present application mainly provides a negative pressure adsorption fixing device, which can solve the problem of insufficient endurance of the battery in the adsorption device.

[0005] In order to solve the above technical problem, the present application provides a negative pressure adsorption fixing device, which comprises a shell, a holding piece, a negative pressure forming assembly, a solar panel and a battery. The inside of the shell has a receiving cavity; the holding piece is used for adsorbing on an adsorption surface; the end of the holding piece away from the shell is provided with an adsorption cavity, and the adsorption cavity is in communication with the receiving cavity; the adsorption cavity is used for cooperating with the adsorption surface to form a sealed space; the negative pressure forming assembly is used for generating negative pressure in the receiving cavity to form negative pressure in the sealed space; the solar panel is installed on the shell, the solar panel has a light absorption surface, at least part of the light absorption surface is exposed to the shell, and the solar panel is used for converting solar energy into electric energy; and the battery is used for supplying power to the negative pressure forming assembly, and the battery can store the electric energy converted by the solar panel.

[0006] In an embodiment, the shell has a first end face and a second end face which are relatively away along the axial direction of the shell; the holding piece is installed on the first end face of the shell, a first communication hole is opened in the cavity wall of the adsorption cavity, and a second communication hole is opened in the first end face of the shell; the adsorption cavity is in communication with the receiving cavity through the first communication hole and the second communication hole; and the solar panel is installed on the second end face of the shell.

[0007] In an embodiment, the second end face is provided with a mounting groove; the solar panel is installed in the mounting groove, and the light absorption surface of the solar panel is flush with the second end face.

[0008] In an embodiment, the solar panel is rotatably arranged on the second end surface, and the solar panel is capable of being lifted and lowered relative to the second end surface by rotation, so as to adjust the angle of the solar panel.

[0009] In an embodiment, the negative pressure adsorption fixing device further comprises a magnetic member, the magnetic member is mounted on the shell, and the magnetic member is used for magnetically adsorbing the to-be-fixed member.

[0010] In an embodiment, the magnetic member is mounted on the side of the solar panel away from the shell, and the magnetic member exposes at least part of the light-absorbing surface.

[0011] In an embodiment, the magnetic member is annular or arc-shaped.

[0012] In an embodiment, the negative pressure adsorption fixing device further comprises a charging interface, the charging interface is used for connecting with an external power supply to supply power to the battery.

[0013] In an embodiment, the negative pressure adsorption fixing device further comprises a first charging circuit, a second charging circuit and a comparator, the first charging circuit comprises a first switch module, the first charging circuit is used for connecting with the solar panel, the second charging circuit comprises a second switch module, and the second switch module is used for connecting with the external power supply.

[0014] One end of the first switch module is connected with the solar panel, and the other end of the first switch module is used for connecting with the battery; one end of the second switch module is connected with the external power supply, and the other end of the second switch module is used for connecting with the battery; the first input end of the comparator is connected with the first charging circuit, the second input end of the comparator is connected with the second charging circuit, the output end of the comparator is used for outputting a comparison result, the first switch module is closed or opened in response to the comparison result of the comparator, and the second switch module is closed or opened in response to the comparison result of the comparator.

[0015] In an embodiment, the first charging circuit further comprises a first protection module, and the second charging circuit further comprises a second protection module; one end of the first protection module is connected with the first switch module, and the other end of the first protection module is connected with the battery; one end of the second protection module is connected with the second switch module, and the other end of the second protection module is connected with the battery; the first protection module and the second protection module are used for preventing reverse flow.

[0016] In an embodiment, the negative pressure forming assembly comprises a driving member, a cylinder plug and a cylinder barrel, the inside of the cylinder barrel has a containing cavity, the containing cavity is communicated with the containing cavity, and the cylinder plug is arranged in the containing cavity; the driving member is used for driving the cylinder plug to make the cylinder plug suck, so that the negative pressure is generated in the containing cavity.

[0017] In an embodiment, the negative pressure adsorption fixing device further comprises an opening assembly, the opening assembly comprises a first movable part and a switch part, one end of the first movable part is arranged outside the accommodating cavity, and the other end of the first movable part is arranged in the accommodating cavity; the first movable part can move towards the inside of the accommodating cavity to actuate the switch part to start the negative pressure forming assembly.

[0018] In an embodiment, the adsorption cavity of the holding part has an adsorption port for abutting against the adsorption surface; the movement direction of the first movable part is parallel to the axis direction of the adsorption port; when the holding part is adsorbed on the adsorption surface, the first movable part can abut against the adsorption surface to move towards the inside of the accommodating cavity under the pressure of the adsorption surface.

[0019] In an embodiment, the switch part is a two-way switch, and the first movable part can also move towards the outside of the accommodating cavity to actuate the two-way switch to start the negative pressure forming assembly.

[0020] In an embodiment, the negative pressure adsorption fixing device further comprises an air inlet assembly for connecting the accommodating cavity with the outside of the shell to separate the holding part from the adsorption surface.

[0021] In an embodiment, the air inlet assembly comprises a second movable part, one end of the second movable part is arranged outside the shell, and the other end of the second movable part is arranged inside the shell; the second movable part can open the air path between the accommodating cavity and the outside of the shell under the pressing force.

[0022] The application provides a negative pressure adsorption fixing device, which comprises a shell, a holding part, a negative pressure forming assembly, a solar panel and a battery. The inside of the shell has an accommodating cavity; the holding part is used for adsorbing on an adsorption surface; the holding part is provided with an adsorption cavity at the end away from the shell, and the adsorption cavity is connected with the accommodating cavity; the adsorption cavity is used for cooperating with the adsorption surface to form a sealed space; the negative pressure forming assembly is used for generating negative pressure in the accommodating cavity to form negative pressure in the sealed space; the solar panel is installed on the shell, the solar panel has a light absorption surface, at least part of the light absorption surface is exposed outside the shell, and the solar panel is used for converting solar energy into electric energy; and the battery is used for supplying power to the negative pressure forming assembly, and the battery can store the electric energy converted by the solar panel. The negative pressure adsorption fixing device of the application can store the electric energy converted by the solar panel in the battery during daytime driving, that is, the battery can be continuously supplied with power by the solar panel during the day, so that the battery can continuously supply power to the negative pressure forming assembly, thereby improving the problem of insufficient battery endurance of the negative pressure adsorption fixing device, and the user does not need to frequently charge the power supply, thereby improving the user experience. When not driving during the day, the solar panel can also convert solar energy into electric energy to supplement the electric energy attenuated when the battery is naturally placed, so that the battery of the negative pressure adsorption fixing device can also have sufficient power supply at night. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a structural schematic diagram of a negative pressure adsorption fixing device from one perspective according to an embodiment of the present application;

[0024] Fig. 2 is a structural schematic diagram of the negative pressure adsorption fixing device from another perspective according to an embodiment of the present application;

[0025] Fig. 3 is an exploded structural schematic diagram of Fig. 1;

[0026] Fig. 4 is a structural schematic diagram of a lower shell according to an embodiment of the present application;

[0027] Fig. 5 is a block diagram of a charging circuit of the negative pressure adsorption fixing device according to an embodiment of the present application;

[0028] Fig. 6 is a block diagram of a connection structure of a comparator according to an embodiment of the present application;

[0029] Fig. 7 is a structural schematic diagram of a lower shell, a negative pressure forming assembly, an opening assembly and an air inlet assembly according to an embodiment of the present application;

[0030] Fig. 8 is a structural schematic diagram of a negative pressure forming assembly, an opening assembly and an air inlet assembly according to an embodiment of the present application;

[0031] Fig. 9 is a structural schematic diagram of a negative pressure forming assembly (exploded view), an opening assembly and an air inlet assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application will be further described in details through specific embodiments and with reference to the drawings. Similar elements in different embodiments are marked with similar reference numerals. In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials or methods. In some cases, some operations related to the present application are not shown or described in the specification in order to avoid the core part of the present application being overwhelmed by too many descriptions, and it is not necessary to describe these related operations in details for those skilled in the art according to the description in the specification and general technical knowledge in the art.

[0033] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate way to form various embodiments. Meanwhile, the steps or actions in the method description can also be adjusted or changed in order according to the way that those skilled in the art can easily recognize. Therefore, the order in the specification and the drawings is only for clear description of one embodiment, and does not mean the necessary order, unless otherwise stated that the order must be followed.

[0034] The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in this application include direct and indirect connections (couplings) unless otherwise specified.

[0035] The application provides a negative pressure adsorption fixing device. The negative pressure adsorption fixing device can be used for adsorption on an adsorption surface, and through the setting of a connecting part on the negative pressure adsorption fixing device, a to-be-fixed part can be fixed on the negative pressure adsorption fixing device through the connecting part, so as to realize the fixation of the to-be-fixed part on the adsorption surface. The connection mode between the connecting part and the to-be-fixed part can be, but is not limited to, snap connection, magnetic attraction connection, interference fit connection, etc. In an application scenario, the negative pressure adsorption fixing device can be used in a vehicle-mounted environment, and the negative pressure adsorption fixing device can be fixed on a vehicle body, and an electronic device can be fixed on the negative pressure adsorption fixing device through the connecting part, so that a user can watch the content displayed by the electronic device. Of course, the negative pressure adsorption fixing device is not limited to be applied in the vehicle-mounted environment, and can be applied in any application scenario requiring fixation of a to-be-fixed part.

[0036] Please refer to FIGS. 1-3, the negative pressure adsorption fixing device includes a shell 10, a holding part 20, a negative pressure forming assembly 30, a solar panel 40 and a battery. The inside of the shell 10 has a receiving cavity 11. Specifically, the shell 10 can include an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected and cooperate to form the receiving cavity 11.

[0037] The holding part 20 is used for adsorption on an adsorption surface. The holding part 20 is installed on the shell 10. The holding part 20 can be installed on the end face of the shell 10 in the axial direction, or the holding part 20 can be installed on the annular side wall of the shell 10. As shown in FIG. 2, the end of the holding part 20 away from the shell 10 is provided with an adsorption cavity 21, and the adsorption cavity 21 is in communication with the receiving cavity 11, that is, the gas pressure in the adsorption cavity 21 is the same as that in the receiving cavity 11. The adsorption cavity 21 is used for cooperating with the adsorption surface to form a sealed space.

[0038] The holding part 20 can be a suction cup or a suction ring, for example. In order to ensure that the holding part 20 can be tightly fitted with the adsorption surface and prevent the holding part 20 and the adsorption surface from forming a gas leakage sealed space, the material of the holding part 20 can be a flexible material, which has a deformable feature and can better fit the adsorption surface.

[0039] As shown in FIG. 2 and FIG. 3, the negative pressure forming assembly 30 is used to generate negative pressure in the accommodation cavity 11. Since the accommodation cavity 11 is in communication with the sealed space, the negative pressure forming assembly 30 can cause the sealed space to form negative pressure, so that the suction holder 20 generates negative pressure suction effect. The negative pressure forming assembly 30 can stably generate negative pressure in the sealed space by energization. Compared with natural suction (such as by extruding air in the sealed space to make the suction holder 20 adsorb on the adsorption surface), the negative pressure forming assembly 30 generates negative pressure in a more stable and reliable manner.

[0040] As shown in FIG. 1 and FIG. 3, the solar panel 40 is an element capable of converting solar energy into electrical energy. The solar panel 40 is installed on the shell 10. The solar panel 40 has a light absorption surface 41, at least part of which is exposed to the shell 10. Preferably, in order to improve the energy conversion rate of the solar panel 40, the entire light absorption surface 41 is exposed to the shell 10, so that the solar panel 40 can fully convert solar energy. A battery is used to supply power to the negative pressure forming assembly 30, and the battery can store the electrical energy converted by the solar panel 40.

[0041] The negative pressure adsorption fixing device of the present application installs the solar panel 40 on the shell 10. When driving during the day, the solar panel 40 can convert solar energy into electrical energy and store it in the battery during the day, that is, the battery can be continuously powered by the solar panel 40 during the day, so that the battery can continuously supply power to the negative pressure forming assembly 30, thereby improving the problem of insufficient battery endurance of the negative pressure adsorption fixing device. Users do not need to frequently charge the power supply, thereby improving the user experience.

[0042] As shown in FIG. 3 and FIG. 4, in one embodiment, the shell 10 has a first end surface 12 and a second end surface 13 which are relatively away along the axial direction of the shell 10. The suction holder 20 is installed on the first end surface 12 of the shell 10, the cavity wall of the adsorption cavity 21 is provided with a first communication hole 211, and the first end surface 12 of the shell 10 is provided with a second communication hole 121. The adsorption cavity 21 is in communication with the accommodation cavity 11 through the first communication hole 211 and the second communication hole 121. The solar panel 40 is installed on the second end surface 13 of the shell 10. Since the suction holder 20 is installed on the first end surface 12 of the shell 10, the first end surface 12 of the shell 10 is generally directed towards the vehicle body, and the second end surface 13 of the shell 10 is directed towards the vehicle window. Installing the solar panel 40 on the second end surface 13 of the shell 10 is conducive to the solar panel 40 absorbing solar energy through the vehicle window.

[0043] In an embodiment, as shown in FIG. 3, the second end surface 13 is provided with a mounting groove 131. The solar panel 40 is mounted in the mounting groove 131, and the light-absorbing surface 41 of the solar panel 40 is flush with the second end surface 13, so that the magnetic member or the like can be mounted more smoothly on the side of the second end surface 13 of the housing 10. Of course, in other embodiments, the light-absorbing surface 41 of the solar panel 40 can also be lower or higher than the second end surface 13.

[0044] In other embodiments, the solar panel 40 can also be rotatably provided on the second end surface 13, and the solar panel 40 is raised and lowered relative to the second end surface 13 by rotation, so as to adjust the angle of the solar panel 40. The solar panel 40 can form an angle with the second end surface 13, and the user can adjust the angle between the solar panel 40 and the second end surface 13 according to the current direction of the sunlight, thereby improving the energy utilization rate of the solar panel 40.

[0045] Further, the negative pressure adsorption fixing device further comprises a connecting line (not shown in the figure) and a circuit board 60. The circuit board 60, the negative pressure forming assembly 30 and the battery are all arranged inside the accommodation cavity 11, so as to ensure the simplicity of the appearance of the negative pressure adsorption fixing device. One end of the connecting line is electrically connected with the solar panel 40, and the other end of the connecting line is electrically connected with the circuit board 60. The groove wall of the mounting groove 131 is provided with a connecting hole, and the connecting hole is used for allowing the connecting line to pass through, so that the solar panel 40 outside the housing 10 can be electrically connected with the circuit board 60 inside the housing 10.

[0046] In an embodiment, the negative pressure adsorption fixing device further comprises a magnetic member 50, which is mounted on the housing 10. Preferably, the magnetic member 50 is mounted on the end of the housing 10 away from the first end surface 12. In an embodiment, the magnetic member 50 can be mounted on the side of the solar panel 40 away from the housing 10, and the magnetic member 50 exposes at least part of the light-absorbing surface 41. For example, the magnetic member 50 can be arranged in a ring shape or an arc shape.

[0047] The magnetic member 50 is used for magnetically adsorbing the to-be-fixed member. That is, in this embodiment, the connecting portion is configured as the magnetic member 50. In the application of fixing electronic equipment, the vehicle body can be held by the holding member 20, and the electronic equipment can be magnetically adsorbed by the magnetic member 50; of course, the vehicle body can also be magnetically adsorbed by the magnetic member 50, and the electronic equipment can be held by the holding member 20. Generally, the shell of the electronic equipment is made of metal material, and the shell made of metal material can be magnetically adsorbed by the magnetic member 50, or the electronic equipment internally has a metal member or a magnetic adsorption member, which can be magnetically adsorbed by the magnetic member 50. This embodiment can reliably connect the electronic equipment with the negative pressure adsorption fixing device by utilizing the characteristics that the electronic equipment usually has.

[0048] Further, the negative pressure adsorption fixing device can further comprise a wireless charging coil, when the magnetic member 50 magnetically adsorbs the electronic device, the wireless charging coil can wirelessly charge the electronic device.

[0049] As shown in FIG. 3, in an embodiment, the negative pressure adsorption fixing device further comprises a charging interface 61, the charging interface 61 is used to connect with an external power supply to supply power to the battery. Even if the solar panel 40 can charge the battery by using the solar panel 40, the amount of electricity stored in the battery can still be consumed when traveling for a long time at night. Therefore, in this embodiment, the negative pressure adsorption fixing device can have two charging modes of solar panel 40 charging and using external power supply charging at the same time, which improves the reliability of the negative pressure adsorption fixing device when traveling at night and on cloudy, rainy days.

[0050] Further, please refer to FIG. 5 and FIG. 6, the negative pressure adsorption fixing device further comprises a first charging circuit 71, a second charging circuit 72 and a comparator 73. The first charging circuit 71 comprises a first switch module 711, the first charging circuit 71 is used to connect with the solar panel 40, the second charging circuit 72 comprises a second switch module 721, the second switch module 721 is used to connect with the external power supply.

[0051] One end of the first switch module 711 is connected with the solar panel 40, the other end of the first switch module 711 is used to connect with the battery. One end of the second switch module 721 is connected with the external power supply, the other end of the second switch module 721 is used to connect with the battery. The first input end of the comparator 73 is connected with the first charging circuit 71, the second input end of the comparator 73 is connected with the second charging circuit 72. The output end of the comparator 73 is used to output the comparison result, wherein the comparison result can be the comparison result of the charging current of the first charging circuit 71 and the charging current of the second charging circuit 72. The first switch module 711 is closed or opened in response to the comparison result of the comparator 73, the second switch module 721 is closed or opened in response to the comparison result of the comparator 73.

[0052] For example, when the solar panel 40 charges the battery and the user does not connect an external power source, the charging current of the first charging circuit 71 is greater than that of the second charging circuit 72, the comparator 73 outputs a first comparison result, the first switch module 711 is closed in response to the first comparison result of the comparator 73, and the second switch module 721 is opened in response to the second comparison result of the comparator 73. When the external power source is connected, the charging current of the second charging circuit 72 is greater than that of the first charging circuit 71, the comparator 73 outputs a second comparison result, the first switch module 711 is opened in response to the first comparison result of the comparator 73, and the second switch module 721 is closed in response to the second comparison result of the comparator 73, that is, when the user connects the external power source, the second charging circuit 72 where the external power source is located is connected, and the first charging circuit 71 where the solar panel 40 is located is disconnected, so as to avoid the two charging modes working at the same time.

[0053] Further, the first charging circuit 71 further comprises a first protection module 712, and the second charging circuit 72 further comprises a second protection module 722. One end of the first protection module 712 is connected with the first switch module 711, and the other end of the first protection module 712 is connected with the battery. One end of the second protection module 722 is connected with the second switch module 721, and the other end of the second protection module 722 is connected with the battery. The first protection module 712 and the second protection module 722 are used for preventing reverse current. The first protection module 712 and the second protection module 722 may, for example, be diodes.

[0054] As shown in FIGS. 7-9, in an embodiment, the negative pressure forming assembly 30 comprises a driving member 31, a cylinder plug 32 and a cylinder barrel 33. The cylinder barrel 33 has an accommodating cavity in the interior, the accommodating cavity is communicated with the receiving cavity 11, and the cylinder plug 32 is arranged in the accommodating cavity. The driving member 31 is used for driving the cylinder plug 32 to make the cylinder plug 32 suck, so as to generate negative pressure in the receiving cavity 11. Since the negative pressure forming assembly 30 is driven by the driving member 31, the user can control whether the negative pressure forming assembly 30 works by controlling the start and stop of the driving member 31.

[0055] The driving member 31 may, for example, be a motor. The output shaft of the motor can drive the cylinder plug 32 to move through a transmission mechanism, for example, a crank mechanism.

[0056] As shown in FIG. 2, FIG. 7-9, in an embodiment, the negative pressure adsorption fixing device further comprises an opening assembly 80. The opening assembly 80 comprises a first movable part 81 and a switch 82. One end of the first movable part 81 is arranged outside the receiving cavity 11, and the other end of the first movable part 81 is arranged inside the receiving cavity 11. The first movable part 81 can move towards the inside of the receiving cavity 11 to touch the switch 82 to start the negative pressure forming assembly 30. Thus, the user can operate the first movable part 81 from the outside of the shell 10 to start the negative pressure forming assembly 30, which is convenient for the user to operate the first movable part 81, and the user can also decide when to adsorb.

[0057] In an embodiment, the adsorption cavity 21 of the adsorption part 20 has an adsorption opening 212 for abutting against the adsorption surface. The moving direction of the first movable part 81 is parallel to the axis direction of the adsorption opening 212. When the adsorption part 20 is adsorbed on the adsorption surface, the first movable part 81 can abut against the adsorption surface to move towards the inside of the receiving cavity 11 under the pressure of the adsorption surface, thereby starting the negative pressure forming assembly 30. Thus, when the user presses the adsorption part 20 on the adsorption surface, the first movable part 81 can start automatically, and the negative pressure forming assembly 30 can be started simultaneously with the pressing action of the user. The user does not need to operate the first movable part 81, thereby simplifying the starting process of the negative pressure forming assembly 30. Preferably, the part of the first movable part 81 outside the shell 10 is arranged inside the adsorption cavity 21 of the adsorption part 20. Of course, in other embodiments, the part of the first movable part 81 outside the shell 10 can be arranged outside the adsorption cavity 21.

[0058] In an embodiment, the switch 82 is a two-way switch, and the first movable part 81 can also move towards the outside of the receiving cavity 11 to touch the two-way switch to start the negative pressure forming assembly 30. Since the adsorption part 20 can be loosened during the adsorption process, the user needs to press the negative pressure adsorption fixing device again when the adsorption part 20 is loosened, which is troublesome. By arranging the two-way switch, the first movable part 81 can start the negative pressure forming assembly 30 when it is pressed or released, thereby preventing the adsorption part 20 from loosening and making the adsorption part 20 adsorb more stably on the adsorption surface.

[0059] As shown in FIGS. 7-9, in one embodiment, the negative pressure adsorption fixing device further comprises an air inlet assembly 90 for connecting the receiving cavity 11 with the outside of the shell 10, so that the adsorption member 20 can be separated from the adsorption surface. By providing the air inlet assembly 90, the user can actively and smoothly separate the adsorption member 20 from the adsorption surface. For example, the air inlet assembly 90 comprises a second movable part 91 and a blocking part, one end of the second movable part 91 is arranged outside the shell 10, and the other end of the second movable part 91 is arranged inside the shell 10; the second movable part 91 can move the blocking part to connect the air path between the receiving cavity 11 and the outside of the shell 10 when subjected to a pressing force.

[0060] In other embodiments, the negative pressure adsorption fixing device can also be taken off by pressing the button, disconnecting the circuit of the negative pressure forming assembly 30, and stopping the negative pressure forming assembly 30 from working, so that the user can take the adsorption member 20 off from the adsorption surface.

[0061] The above application of specific examples to illustrate the present application, is only used to help understand the present application, and is not used to limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A negative pressure suction fixing device characterized by comprising: The utility model relates to a solar energy panel fixing device, including: A shell, the inside of the shell has a receiving cavity; A suction piece is used for adsorbing on the adsorption surface; The end of the suction piece away from the shell is provided with an adsorption cavity, and the adsorption cavity is communicated with the receiving cavity; the adsorption cavity is used for cooperating with the adsorption surface to form a closed space; A negative pressure forming assembly is used for generating negative pressure in the receiving cavity to form negative pressure in the closed space; A solar panel is installed on the shell, the solar panel has a light absorption surface, at least part of the light absorption surface is exposed to the shell, and the solar panel is used for converting solar energy into electrical energy; And a battery is used for supplying power to the negative pressure forming assembly, and the battery can store the electrical energy converted by the solar panel.

2. The negative pressure suction fixing device according to claim 1, wherein The shell has a first end surface and a second end surface which are relatively away along the axial direction of the shell; the suction piece is installed on the first end surface of the shell, a cavity wall of the adsorption cavity is provided with a first communication hole, and the first end surface of the shell is provided with a second communication hole; the adsorption cavity is communicated with the receiving cavity through the first communication hole and the second communication hole; and the solar panel is installed on the second end surface of the shell.

3. The negative pressure suction fixing device according to claim 2, wherein An installation groove is arranged on the second end surface; the solar panel is installed in the installation groove, and the light absorption surface of the solar panel is flush with the second end surface.

4. The negative pressure suction fixing device according to claim 2, wherein The solar panel is rotatably arranged on the second end surface, and the solar panel can be lifted or lowered relative to the second end surface by rotating to adjust the angle of the solar panel.

5. The negative pressure suction fixing device according to claim 1, wherein Further comprising a magnetic piece, the magnetic piece is installed on the shell, and the magnetic piece is used for magnetically adsorbing a to-be-fixed piece.

6. The negative pressure suction fixing device according to claim 5, wherein The magnetic piece is installed on the side of the solar panel away from the shell, and the magnetic piece exposes at least part of the light absorption surface.

7. The negative pressure suction fixing device according to claim 6, wherein The magnetic piece is annular or arc-shaped.

8. The negative pressure suction fixing device according to claim 1, wherein Further comprising a charging interface, the charging interface is used for connecting with an external power supply to supply power to the battery.

9. The negative pressure suction fixing device according to claim 8, wherein Further comprising a first charging circuit, a second charging circuit and a comparator, the first charging circuit comprises a first switch module, the first charging circuit is used for connecting with the solar panel, the second charging circuit comprises a second switch module, and the second switch module is used for connecting with the external power supply; One end of the first switch module is connected with the solar panel, and the other end of the first switch module is used for connecting with the battery; one end of the second switch module is connected with the external power supply, and the other end of the second switch module is used for connecting with the battery; a first input end of the comparator is connected with the first charging circuit, a second input end of the comparator is connected with the second charging circuit, an output end of the comparator is used for outputting a comparison result, the first switch module is closed or opened in response to the comparison result of the comparator, and the second switch module is closed or opened in response to the comparison result of the comparator.

10. The negative pressure suction fixing device according to claim 9, wherein The first charging circuit further comprises a first protection module, and the second charging circuit further comprises a second protection module; one end of the first protection module is connected with the first switch module, and the other end of the first protection module is connected with the battery; one end of the second protection module is connected with the second switch module, and the other end of the second protection module is connected with the battery; the first protection module and the second protection module are used for preventing reverse flow.

11. The negative pressure suction fixing device according to claim 1, wherein The negative pressure forming assembly comprises a driving member, a cylinder plug and a cylinder barrel, the cylinder barrel has an accommodating cavity in the interior thereof, the accommodating cavity is communicated with the receiving cavity, and the cylinder plug is arranged in the accommodating cavity; the driving member is used for driving the cylinder plug to make the cylinder plug move to generate negative pressure in the receiving cavity.

12. The negative pressure suction fixture according to claim 1, wherein The opening assembly comprises a first movable part and a switch member, one end of the first movable part is arranged outside the receiving cavity, and the other end of the first movable part is arranged in the receiving cavity; the first movable part can move towards the interior of the receiving cavity to actuate the switch member to start the negative pressure forming assembly.

13. The negative pressure suction fixture according to claim 12, characterized in that The adsorption cavity of the adsorption member has an adsorption port for abutting against the adsorption surface; the movement direction of the first movable part is parallel to the axis direction of the adsorption port; when the adsorption member is adsorbed on the adsorption surface, the first movable part can abut against the adsorption surface to be moved towards the interior of the receiving cavity under the pressure of the adsorption surface.

14. The negative pressure suction fixing device according to claim 13, wherein The switch member is a bidirectional change-over switch, and the first movable part can also move towards the exterior of the receiving cavity to actuate the bidirectional change-over switch to start the negative pressure forming assembly.

15. The negative pressure suction fixture according to claim 1, wherein The air inlet assembly is used for communicating the receiving cavity with the exterior of the shell to enable the adsorption member to be separated from the adsorption surface.

16. The negative pressure suction fixture according to claim 15, characterized in that The air inlet assembly comprises a second movable part, one end of the second movable part is arranged outside the shell, and the other end of the second movable part is arranged inside the shell; the second movable part can open the air path between the receiving cavity and the exterior of the shell when subjected to pressing force.

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