Quick disassembly and assembly visual identification device based on Internet of Things and Internet of Things system

Abstract

The utility model discloses an internet-of-things-based quick dismounting visual identification device and internet-of-things system, the quick dismounting visual identification device comprises a mounting seat and a visual identifier, the mounting seat is used for being fixedly connected with an external structure, the mounting seat is provided with an accommodating cavity, the mounting seat is provided with a first end and a second end which are opposite to each other, and the visual identifier is arranged in the accommodating cavity. The first end is provided with a threaded hole, the threaded hole is communicated between the containing cavity and the outer space of the mounting base, the second end is connected with an elastic piece, the elastic piece is located in the containing cavity, and the end, away from the second end, of the elastic piece is aligned to the threaded hole; the other end of the connecting rod is provided with a threaded structure, the threaded structure can be screwed in the threaded hole in a matched mode so that the threaded structure can enter the containing cavity and abut against the elastic piece, the connecting rod is connected to the threaded hole in a sliding mode, and rapid disassembly and assembly of the visual recognition sensor can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of Internet of Things (IoT) technology, and in particular to a rapid disassembly and assembly visual recognition device and IoT system based on IoT. Background Technology

[0002] The Internet of Things (IoT) is a network based on information carriers such as the Internet and traditional telecommunications networks, enabling all ordinary physical objects that can be independently addressed to interconnect. The IoT typically includes sensors to detect and collect information.

[0003] In related technologies, IoT systems typically include a large number of visual recognition sensors. Therefore, when setting up and maintaining an IoT system, a significant amount of time and manpower is required to install and remove the visual recognition sensors. Thus, there is an urgent need to design a visual recognition sensor that can be quickly installed and removed to reduce the setup and maintenance costs of IoT systems. Utility Model Content

[0004] One objective of this invention is to provide a quick-assembly and disassembly visual recognition device based on the Internet of Things, which enables the quick assembly and disassembly of visual recognition sensors.

[0005] Another objective of this invention is to provide an Internet of Things (IoT) system that reduces the setup and maintenance costs of the IoT system by using the aforementioned quick-release visual recognition device.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Firstly, a rapid disassembly and assembly visual recognition device based on the Internet of Things is provided, comprising:

[0008] A mounting base for connection and fixation to an external structure, the mounting base having a receiving cavity, and having opposing first and second ends. The first end has a threaded hole communicating between the receiving cavity and the external space of the mounting base. The second end is connected to an elastic element located within the receiving cavity, with the end of the elastic element away from the second end aligned with the threaded hole.

[0009] A visual recognition device includes a visual recognition body and a connecting rod. One end of the connecting rod is connected to the visual recognition body, and the other end of the connecting rod is provided with a threaded structure. The threaded structure can be rotated into the threaded hole so that the threaded structure enters the receiving cavity and abuts against the elastic element. The connecting rod is slidably connected to the threaded hole.

[0010] As a preferred technical solution of the IoT-based rapid disassembly and assembly visual recognition device, the end of the elastic member away from the second end is connected to a connector, the connector having a connecting groove with an opening facing the threaded hole, and the threaded structure being fitted into the connecting groove.

[0011] As a preferred technical solution of the IoT-based rapid disassembly and assembly visual recognition device, the connecting groove has a depth h1 along the relative direction between the first end and the second end, and the threaded structure has a height h2, where h1 < h2.

[0012] As a preferred technical solution of the aforementioned IoT-based rapid disassembly and assembly visual recognition device, the first end is further provided with a limiting cylinder, the limiting cylinder is located in the accommodating cavity, and the inner space of the limiting cylinder is connected to the threaded hole, and the connecting piece is slidably connected to the inner wall of the limiting cylinder.

[0013] As a preferred technical solution of the aforementioned IoT-based rapid disassembly and assembly visual recognition device, the outer surface of the mounting base is further provided with a connecting part, which is used to connect and fix with the external structure.

[0014] As a preferred technical solution of the aforementioned IoT-based rapid disassembly and assembly visual recognition device, the mounting base includes a split first part and a second part, the first part and the second part being detachably connected, the first part including a first end, and the second part including a second end.

[0015] As a preferred technical solution of the IoT-based rapid disassembly and assembly visual recognition device, the first part is provided with a first threaded connection part, the second part is provided with a second threaded connection part, the second threaded connection part is detachably threadedly connected to the first threaded connection part, and both the first threaded connection part and the second threaded connection part surround the accommodating cavity.

[0016] As a preferred technical solution of the IoT-based rapid disassembly and assembly visual recognition device, the first end is further provided with a first magnetic component, which is located on the outer periphery of the threaded hole. The visual recognition device also includes a second magnetic component, which is located on the outer periphery of the connecting rod and on the same side of the visual recognition body as the connecting rod. The magnetic poles of the second magnetic component and the first magnetic component are the same. The threaded structure is spaced apart from the first end under the action of the mutual repulsion force between the second magnetic component and the first magnetic component.

[0017] As a preferred technical solution of the aforementioned IoT-based rapid disassembly and assembly visual recognition device, the first magnetic component is located within the accommodating cavity; and / or,

[0018] The visual recognition body has a receiving groove on the side near the first end, the receiving groove is located on the outer periphery of the connecting rod, and the second magnetic element is at least partially located in the receiving groove.

[0019] In a second aspect, an Internet of Things (IoT) system is provided, including at least one IoT-based rapid disassembly and assembly visual recognition device as described in the first aspect above.

[0020] The beneficial effects of this utility model are as follows:

[0021] The mounting base is used to connect and fix the vision recognition device to an external structure. By providing threaded holes and an elastic element within the mounting base, the vision recognition device has a connecting rod and a threaded structure. When the vision recognition device needs to be installed on the external structure, the operator simply twists the threaded structure of the vision recognition device into the threaded hole of the mounting base. This allows the threaded structure to enter the receiving cavity of the mounting base and abut against the elastic element. The connecting rod can then slide into the threaded hole, and the end of the threaded structure away from the elastic element abuts against the first end under the elastic force of the elastic element, thus maintaining a stable relative position between the vision recognition device and the mounting base. This allows for quick installation of the vision recognition device onto the external structure. Conversely, when the vision recognition device needs to be removed from the external structure, the operator simply twists the threaded structure of the vision recognition device into the threaded hole of the mounting base. This causes the threaded structure within the receiving cavity to twist along the threaded hole until it disengages from the spiral structure and is located outside the mounting base, allowing for quick removal of the vision recognition device from the mounting base. As can be seen, whether the vision recognition device is installed on the mounting base or removed from the mounting base, the operator only needs to rotate the vision recognition device, which is a simple and quick operation.

[0022] In addition, by continuously applying elastic force to the threaded structure through elastic elements, a certain amount of vibration energy can be absorbed when the external structure vibrates, thereby reducing the vibration amplitude of the visual recognition device and achieving a certain shock absorption effect. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of a quick-assembly and disassembly visual recognition device according to one embodiment.

[0025] Figure 2 for Figure 1 The diagram shows an exploded view of the quick-assembly and disassembly visual recognition device.

[0026] Figure 3 This is a structural schematic diagram of the quick-assembly and disassembly visual recognition device according to another embodiment.

[0027] In the picture:

[0028] 100. Visual recognition device;

[0029] 1. Mounting base; 10. Receiving cavity; 11. First end; 110. Threaded hole; 111. Limiting cylinder; 112. First magnetic component; 12. Second end; 120. Elastic component; 121. Connecting component; 121a. Connecting groove; 13. Connecting part; 130. Connecting through hole; 14. First part; 140. First threaded connecting part; 15. Second part; 150. Second threaded connecting part;

[0030] 2. Vision recognition device; 20. Vision recognition body; 201. Receiving groove; 21. Connecting rod; 211. Threaded structure; 22. Second magnetic component. Detailed Implementation

[0031] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] like Figure 1 and Figure 2As shown, this utility model provides a quick-assembly and disassembly visual recognition device 100 based on the Internet of Things, including a mounting base 1 and a visual recognizer 2. The mounting base 1 is used to connect and fix to an external structure. The mounting base 1 has a receiving cavity 10 and has a first end 11 and a second end 12 opposite to each other. The first end 11 has a threaded hole 110, which communicates between the receiving cavity 10 and the external space of the mounting base 1. The second end 12 is connected to an elastic element 120, which is located in the receiving cavity 10, and the end of the elastic element 120 away from the second end 12 is aligned with the threaded hole 110. The visual recognizer 2 includes a visual recognition body 20 and a connecting rod 21. One end of the connecting rod 21 is connected to the visual recognition body 20, and the other end of the connecting rod 21 has a threaded structure 211. The threaded structure 211 can be rotated in the threaded hole 110 so that the threaded structure 211 enters the receiving cavity 10 and abuts against the elastic element 120. The connecting rod 21 is slidably connected to the threaded hole 110.

[0035] Mounting base 1 is used to connect and fix to an external structure. By providing a corresponding threaded hole 110 and an elastic element 120 to the mounting base 1, the vision recognition device 2 has a connecting rod 21 and a threaded structure 211. When it is necessary to install the vision recognition device 2 on the external structure, the operator only needs to turn the threaded structure 211 of the vision recognition device 2 into the threaded hole 110 of the mounting base 1, so that the threaded structure 211 enters the receiving cavity 10 of the mounting base 1 and abuts against the elastic element 120. Thus, the connecting rod 21 can be slidably connected to the threaded hole 110, and the end of the threaded structure 211 away from the elastic element 120 can abut against the first end 11 under the action of the elastic force of the elastic element 120, so that the relative position of the vision recognition device 2 and the mounting base 1 remains stable. This allows the vision recognition device 2 to be quickly installed on the external structure through the mounting base 1. When it is necessary to disassemble the vision recognition device 2 from the external structure, the operator only needs to rotate the threaded structure 211 of the vision recognition device 2 into the threaded hole 110 of the mounting base 1. This allows the threaded structure 211 within the receiving cavity 10 to rotate along the threaded hole 110 until it disengages from the helical structure and is located outside the mounting base 1, thus enabling the vision recognition device 2 to be quickly detached from the mounting base 1. Therefore, whether installing or removing the vision recognition device 2 from the mounting base 1, the operator only needs to rotate the vision recognition device 2, making the operation simple and quick.

[0036] The external structure may include, but is not limited to, external walls, external equipment, and external base.

[0037] In addition, by continuously applying elastic force to the threaded structure 211 through the elastic element 120, a certain amount of vibration energy can be absorbed when the external structure vibrates, thereby reducing the vibration amplitude of the visual recognition device 2 and achieving a certain shock absorption effect.

[0038] Optionally, the end of the elastic member 120 away from the second end 12 is connected to a connector 121. The connector 121 has a connecting groove 121a with an opening facing the threaded hole 110. The threaded structure 211 is engaged with the connecting groove 121a, so that the elastic member 120 can abut against the threaded structure 211 through the connector 121. Since the threaded structure 211 can be engaged with the connecting groove 121a, when the threaded structure 211 is in the receiving cavity 10, the threaded structure 211 is less likely to disengage from the connector 121, so that the elastic member 120 is more likely to remain in the state of abutting against the threaded structure 211. Thus, during the use of the quick-disassembly and assembly visual recognition device 100, the connection stability between the visual recognition device 2 and the mounting base 1 is better.

[0039] Optionally, along the relative direction between the first end 11 and the second end 12, the connecting groove 121a has a depth h1, and the threaded structure 211 has a height h2, where h1 < h2. This avoids the connector 121 abutting against the first end 11 when the threaded structure 211 is engaged with the connecting groove 121a. In other words, it avoids the connector 121 obstructing the threaded structure 211 from abutting against the first end 11. This also avoids the threaded structure 211 having a certain amount of movable space between the first end 11 and the bottom surface of the connecting groove 121a when it is located in the receiving cavity 10. This further avoids the problem of poor relative posture stability between the visual recognizer 2 and the mounting base 1 during the use of the quick-assembly and disassembly visual recognition device 100.

[0040] Optionally, the first end 11 is further provided with a limiting cylinder 111, which is located in the accommodating cavity 10 and the internal space of the limiting cylinder 111 is connected to the threaded hole 110. The connecting member 121 is slidably connected to the inner wall of the limiting cylinder 111, thereby limiting the relative posture of the connecting member 121 and the first end 11 through the limiting cylinder 111. On the one hand, it is convenient to keep the connecting member 121 in the posture of the opening of the connecting groove 121a aligned with the threaded hole 110, so that when the threaded structure 211 enters the accommodating cavity 10, the threaded structure 211 is aligned with the connecting groove 121a connected to the connecting member 121. On the other hand, the posture of the connecting member 121 in the accommodating cavity 10 can also be limited to restrict the posture of the threaded structure 211 connected to the connecting member 121, thereby limiting the relative posture of the visual recognition device 2 as a whole and the mounting base 1, so that the relative posture of the visual recognition device 2 and the mounting base 1 can be kept stable in the use state.

[0041] Optionally, the outer surface of the mounting base 1 is further provided with a connecting part 13, which is used to connect and fix with an external structure so that the mounting base 1 can be connected and fixed to the external structure through the connecting part 13.

[0042] Optionally, the connecting part 13 may be disposed at any point on the mounting base 1, spaced apart from the vision recognition device 2. Figures 1 to 3 The example shows a connecting portion 13 located at the second end 12 of the mounting base 1. In other embodiments, the connecting portion 13 may also be located between the first end 11 and the second end 12, or it may be located at the first end 11.

[0043] Optionally, the connecting part 13 may be provided with a connecting through hole 130, so that the operator can screw or bolt the connecting part 13 to the external structure by passing screws or bolts through the connecting through hole 130 and the hole provided on the external structure. In other embodiments, the connecting part 13 may also be fixedly connected to the external structure by means including but not limited to plugging, snapping, magnetic connection, welding, etc.

[0044] Optionally, the mounting base 1 includes a separate first part 14 and a second part 15, which are detachably connected. The first part 14 includes a first end 11 and the second part 15 includes a second end 12. This allows the more complex mounting base 1 to be divided into two simpler parts, thereby reducing the manufacturing difficulty and cost of the mounting base 1.

[0045] Optionally, the first part 14 is provided with a first threaded connection part 140, and the second part 15 is provided with a second threaded connection part 150. The second threaded connection part 150 is detachably threaded to the first threaded connection part 140. Both the first threaded connection part 140 and the second threaded connection part 150 surround the receiving cavity 10. Thus, the operator only needs to twist the first part 14 and the second part 15 relative to each other to make the first threaded connection part 140 threadedly connected to or disconnected from the second threaded connection part 150, so as to assemble or disassemble the first part 14 and the second part 15. The disassembly and assembly operations of the first part 14 and the second part 15 are simple.

[0046] When the first end 11 is provided with a limiting cylinder 111 as described in the aforementioned technical solution, during the assembly of the first part 14 and the second part 15, the connecting piece 121 can be slidably connected to the limiting cylinder 111 first, and then the first part 14 and the second part 15 can be rotated relative to each other.

[0047] In addition to ensuring that the end of the threaded structure 211 away from the elastic element 120 can abut against the first end 11 under the elastic force of the elastic element 120, the threaded structure 211 can also be spaced apart from the first end 11 to reduce the impact of the first end 11 on the threaded structure 211 when the mounting base 1 vibrates, thereby improving the vibration damping effect on the visual recognition device 2.

[0048] like Figure 3As shown, optionally, the first end 11 is also provided with a first magnetic element 112, which is located on the outer periphery of the threaded hole 110. The visual recognition device 2 also includes a second magnetic element 22, which is located on the outer periphery of the connecting rod 21 and on the same side of the visual recognition body 20 as the connecting rod 21. The magnetic poles of the second magnetic element 22 and the first magnetic element 112 are the same. Thus, the threaded structure 211 compresses the elastic element 120 through the mutual repulsion between the first magnetic element 112 and the second magnetic element 22, so that the threaded structure 211 is spaced apart from the first end 11. At this time, the elastic element 120, the first magnetic element 112, and the second magnetic element 22 can jointly absorb at least part of the vibration energy, thereby further improving the shock absorption effect of the visual recognition device 2.

[0049] Optionally, the first magnetic element 112 is located within the accommodating cavity 10, so that it can be protected by the mounting base 1. For example, the first magnetic element 112 can be a magnetic ring, and it is spaced around the outer periphery of the threaded hole 110. In this case, regardless of the orientation of the visual recognition device 2 relative to the mounting base 1, the first magnetic element 112 can correspond to the second magnetic element 22. When the first end 11 is provided with a limiting cylinder 111 as described in the foregoing technical solution, the first magnetic element 112 is arranged around the outer periphery of the limiting cylinder 111.

[0050] Optionally, the visual recognition body 20 is provided with a receiving groove 201 on the side near the first end 11. The receiving groove 201 is located on the outer periphery of the connecting rod 21. The second magnetic element 22 is at least partially located in the receiving groove 201 so that at least part of the second magnetic element 22 can be accommodated by the receiving groove 201, thereby reducing the portion of the second magnetic element 22 exposed to the external environment, so as to protect the second magnetic element 22 and reduce the possibility of the second magnetic element 22 being affected by external impurities, bumps, etc.

[0051] For example, the receiving groove 201 may be an annular groove surrounding the connecting rod 21, and the second magnetic element 22 may be a magnetic ring, so that the second magnetic element 22 can correspond to the first magnetic element 112 regardless of the orientation of the visual recognition device 2 relative to the mounting base 1.

[0052] This utility model also provides an Internet of Things (IoT) system, which includes at least one IoT-based quick-assembly and disassembly visual recognition device 100 as described in the foregoing technical solution (see also...). Figure 1By using the aforementioned quick-release visual recognition device 100, the setup and maintenance costs of the Internet of Things (IoT) system can be reduced. When the IoT system includes multiple quick-release visual recognition devices 100 as described in the aforementioned technical solutions, these devices can communicate with each other via wired or wireless means. When the IoT system includes one or more quick-release visual recognition devices 100 as described in the aforementioned technical solutions, the IoT system may also include other terminals, such as, but not limited to, sensors, controllers, and devices capable of physical actions (e.g., robotic arms, machine tools, assembly lines, etc.), and the quick-release visual recognition devices 100 included in the IoT system communicate indirectly or directly with all other terminals via wired or wireless means.

[0053] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0056] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An Internet of Things-based quick disassembly visual recognition device, characterized in that, The mounting base is used for connecting and fixing with an external structure, has a receiving cavity, has opposite first and second ends, the first end is provided with a threaded hole, the threaded hole is communicated between the receiving cavity and the external space of the mounting base, the second end is connected with an elastic member, the elastic member is located in the receiving cavity, and one end of the elastic member away from the second end is aligned with the threaded hole; and The visual identifier includes a visual identification body and a connecting rod, one end of the connecting rod is connected to the visual identification body, the other end of the connecting rod is provided with a threaded structure, the threaded structure can be matched and screwed in the threaded hole, so that the threaded structure enters the receiving cavity and abuts against the elastic member, and the connecting rod is slidably connected to the threaded hole. One end of the elastic member away from the second end is connected with a connecting member, the connecting member has a connecting groove with an opening facing the threaded hole, and the threaded structure is matched and connected to the connecting groove. 2.The quick detach visual identification device based on Internet of Things according to claim 1, characterized in that, In the opposite direction of the first end and the second end, the connecting groove has a depth h1, the threaded structure has a height h2, and h1 < h2. 3.The quick detach visual identification device based on Internet of Things according to claim 2, characterized in that, The first end is also provided with a limiting cylinder, the limiting cylinder is located in the receiving cavity, and the cylinder inner space of the limiting cylinder is communicated with the threaded hole, and the connecting member is slidably matched and connected to the inner wall of the limiting cylinder.

4. The quick detach visual identification device based on Internet of Things according to claim 2, characterized in that, The outer surface of the mounting base is also provided with a connecting part for connecting and fixing with the external structure. 5.The quick detach visual identification device based on Internet of Things according to claim 1, characterized in that, The mounting base includes a first part and a second part which are detachably connected, the first part includes the first end, and the second part includes the second end. 6.The quick detach visual identification device based on Internet of Things according to any one of claims 1-5, characterized in that, The first part is provided with a first threaded connecting part, the second part is provided with a second threaded connecting part, the second threaded connecting part is detachably and threadedly connected to the first threaded connecting part, and the first threaded connecting part and the second threaded connecting part are both surrounded by the receiving cavity. 7.The quick detach visual identification device based on Internet of Things according to claim 6, characterized in that, The first end is also provided with a first magnetic member located on the outer periphery of the threaded hole, the visual identifier further includes a second magnetic member located on the outer periphery of the connecting rod and on the same side of the connecting rod as the visual identification body, the second magnetic member has the same magnetic pole as the first magnetic member, and the threaded structure is spaced apart from the first end under the action of the repulsive force between the second magnetic member and the first magnetic member. 8.The quick detach visual identification device based on Internet of Things according to any one of claims 1-5, characterized in that, The first magnetic member is located in the receiving cavity; and / or 9.The quick detach visual identification device based on Internet of Things according to claim 8, characterized in that, The visual identification body is provided with a containing groove on the side close to the first end, the containing groove is located on the outer periphery of the connecting rod, and the second magnetic member is at least partially located in the containing groove. The mounting base is used for connecting and fixing with an external structure, has a receiving cavity, has opposite first and second ends, the first end is provided with a threaded hole, the threaded hole is communicated between the receiving cavity and the external space of the mounting base, the second end is connected with an elastic member, the elastic member is located in the receiving cavity, and one end of the elastic member away from the second end is aligned with the threaded hole; and 10. An Internet of Things system, characterized by The visual identifier includes a visual identification body and a connecting rod, one end of the connecting rod is connected to the visual identification body, the other end of the connecting rod is provided with a threaded structure, the threaded structure can be matched and screwed in the threaded hole, so that the threaded structure enters the receiving cavity and abuts against the elastic member, and the connecting rod is slidably connected to the threaded hole. The mounting base is used for connecting and fixing with an external structure, has a receiving cavity, has opposite first and second ends, the first end is provided with a threaded hole, the threaded hole is communicated between the receiving cavity and the external space of the mounting base, the second end is connected with an elastic member, the elastic member is located in the receiving cavity, and one end of the elastic member away from the second end is aligned with the threaded hole; and The visual identifier includes a visual identification body and a connecting rod, one end of the connecting rod is connected to the visual identification body, the other end of the connecting rod is provided with a threaded structure, the threaded structure can be matched and screwed in the threaded hole, so that the threaded structure enters the receiving cavity and abuts against the elastic member, and the connecting rod is slidably connected to the threaded hole. The mounting base is used for connecting and fixing with an external structure, has a receiving cavity, has opposite first and second ends, the first end is provided with a threaded hole, the threaded hole is communicated between the receiving cavity and the external space of the mounting base, the second end is connected with an elastic member, the elastic member is located in the receiving cavity, and one end of the elastic member away from the second end is aligned with the threaded hole; and The visual identifier includes a visual identification body and a connecting rod, one end of the connecting rod is connected to the visual identification body, the other end of the connecting rod is provided with a threaded structure, the threaded structure can be matched and screwed in the threaded hole, so that the threaded structure enters the receiving cavity and abuts against the elastic member, and the connecting rod is slidably connected to the threaded hole.

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