Adjustable stable territorial surveying and mapping mark point protection device

Abstract

The invention discloses an adjustable stable type land surveying and mapping mark point protection device, and belongs to the field of land surveying and mapping equipment. The protection device comprises a base, a platform arranged on the base and a protection shell arranged on the platform; a telescopic ground anchor mechanism for fixing the base on the ground is arranged on the base; the base is provided with a supporting and adjusting mechanism which is connected with the platform and used for adjusting the levelness of the platform. By means of the telescopic ground anchor mechanism and the adjustable supporting and adjusting mechanism, various complex terrains such as mountainous areas, hills, plains and wet lands can be easily dealt with. And no matter whether the gradient changes or the soil texture differences exist, stable installation can be achieved through adjustment, and the application range of the protection device is remarkably widened. In areas with large slopes such as mountainous areas, the device can adapt to terrains by adjusting the angle of the supporting and adjusting mechanism and the extension length of the ground anchor mechanism, it is guaranteed that surveying and mapping mark points are in a horizontal and stable state, and the accuracy of surveying and mapping data is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of land surveying and mapping equipment, and specifically to an adjustable and stable protection device for land surveying and mapping marker points. Background Art

[0002] In the land surveying and mapping work system, surveying and mapping marker points, as key basic elements, are in a core position and play an irreplaceable role. Their importance is reflected in being the starting base points for various surveying and mapping data acquisitions and the key references for subsequent analyses, directly determining the accuracy and reliability of surveying and mapping results, and further affecting the quality of a series of important work such as land planning, resource exploration, and the construction of geographic information systems, as well as the decision-making basis.

[0003] However, there are many problems to be solved urgently in the surveying and mapping marker point protection devices applied in the current market. From the structural level, the existing devices generally show the characteristics of single structure and fixed design. This single structure results in serious lack of flexibility and is difficult to adapt to diverse application scenarios and complex working environments. In areas with complex terrains, such as mountainous areas and hilly areas, the ground slope changes frequently and significantly. When installing traditional fixed-structure protection devices, they cannot be effectively adjusted according to the undulating characteristics of the terrain and are difficult to fit closely with the actual terrain to achieve stable installation. This not only makes the device extremely prone to unstable conditions such as tilting and collapsing during use, but more seriously, may cause varying degrees of damage to the internal surveying and mapping marker points. Once the marker points are damaged, the coherence and accuracy of the surveying and mapping data collected based on them will surely be destroyed, thus seriously hindering subsequent land planning, resource exploration and other work, and may lead to adverse consequences such as planning deviations and resource misjudgments.

[0004] In addition, in the face of harsh weather such as strong winds, heavy rains, and heavy snows, the stability shortcoming of the existing protection devices is fully exposed. Due to the lack of effective windproof, rainproof, and snowproof designs and reinforcement measures, the device cannot provide a reliable protection barrier for surveying and mapping marker points under harsh weather conditions, making the marker points face a high risk of damage and seriously affecting the continuity of surveying and mapping work and the integrity of data.

[0005] Therefore, this application provides an adjustable and stable protection device for land surveying and mapping marker points to solve the above problems. Summary of the Invention

[0006] The present invention aims to design and manufacture an adjustable and stable protection device for land surveying and mapping marker points, enabling it to be adjusted flexibly and accurately according to diverse topographies and complex environmental conditions. By enhancing the stability performance of the device, it comprehensively and deeply protects land surveying and mapping marker points, ensuring the smooth progress of surveying and mapping work and the accurate acquisition of data.

[0007] To achieve the above object, the present application provides the following technical solution: An adjustable and stable protection device for national land surveying and mapping marker points, comprising a base, a platform provided on the base for installing national land surveying and mapping marker points, and a protective housing provided on the platform for protecting the national land surveying and mapping marker points; The base is provided with a telescopic ground anchor mechanism for fixing the base to the ground; The base is provided with a support adjustment mechanism connected to the platform for adjusting the levelness of the platform; The support adjustment mechanism includes a support rod member connected to the platform, a spherical connector fixedly provided at the bottom of the support rod member, and an adjustment rod member connected to the support rod member and the ground anchor mechanism. A level is fixedly installed on the platform, and a spherical groove adapted to the spherical connector is provided at the center position of the base. Through the telescopic ground anchor mechanism and the adjustable support adjustment mechanism, it is possible to easily cope with various complex terrains such as mountains, hills, plains, and wetlands. Whether it is the change in slope or the difference in soil texture, stable installation can be achieved through adjustment, significantly broadening the applicable range of the protection device. In areas with a large slope such as mountains, the angle of the support adjustment mechanism and the extension length of the ground anchor mechanism can be adjusted to make the device adapt to the terrain, ensuring that the surveying and mapping marker points are in a horizontal and stable state and guaranteeing the accuracy of surveying and mapping data.

[0008] Preferably, to improve the stability of the base installation: The base has a cross-shaped structure, and telescopic ground anchor mechanisms are provided at the four ends of the cross. By combining the cross-shaped base with the adjustable ground anchor mechanism, the grip of the device on the ground is greatly enhanced.

[0009] Preferably, two adjustment rod members are provided. The two adjustment rod members are respectively provided on two adjacent ground anchor mechanisms. The adjustment rod member includes a third sleeve and third screws symmetrically inserted into both ends of the third sleeve. One end of the third screw away from the third sleeve is hinged with a hinge seat, and the two hinge seats are respectively rotatably sleeved on the first sleeve and the second sleeve. By rotating the two adjustment rod members to make the two third screws on the third sleeve move relative to each other, the inclined support rod member can be adjusted. When facing terrains with different slopes, by adjusting these components and using the data fed back by the level, the platform can be adjusted to a horizontal state to ensure that the surveying and mapping marker points are in the accurate position.

[0010] Preferably, a flange is fixedly sleeved at the bottom of the protective housing, and the flange is fixedly installed on the platform by bolts. The bolted connection is firm and reliable, ensuring that it will not loosen even in harsh environments.

[0011] Preferably, for the convenience of observing the national land surveying and mapping marker points: the protective housing is of a cylindrical structure and is made of transparent high-strength organic glass material. On the one hand, this material has excellent impact resistance and can effectively resist the collision of external objects, protecting the surveying and mapping marker points from physical damage; on the other hand, its transparent property facilitates the staff to observe the status of the marker points at any time without disassembling the housing, improving work efficiency.

[0012] Preferably, for the convenience of lighting: a lighting mechanism is provided on the platform, and the lighting mechanism includes lamp beads fixedly arranged inside the protective housing and a storage battery fixedly arranged on the platform and electrically connected to the lamp beads. The lighting mechanism can not only illuminate the national land surveying and mapping marker points, but also play a warning role in poor light conditions.

[0013] Preferably, for the convenience of maintaining or calibrating the surveying and mapping marker points: a maintenance opening is provided on the protective housing, and a photovoltaic panel closely fitting the protective housing is arranged at the maintenance opening, and the photovoltaic panel is electrically connected to the storage battery. Symmetrically sliding plugs on the side of the photovoltaic panel close to the protective housing are provided with guide rails, and the guide rails are fixedly connected to the protective housing. Through the openable and closable photovoltaic panel, when maintenance, calibration and other operations need to be carried out on the surveying and mapping marker points, the staff does not need to disassemble the entire protective housing, and can directly open the photovoltaic panel for convenient operation, greatly simplifying the maintenance process and reducing the maintenance cost. At the same time, the photovoltaic panel can efficiently collect solar energy and convert it into electrical energy for storage, providing stable power support for the lighting mechanism equipped inside the device, realizing green environmental protection, sustainable power supply, and reducing dependence on external power sources.

[0014] Through the retractable ground anchor mechanism and the adjustable support adjustment mechanism of the present application, various complex terrains such as mountains, hills, plains, and wetlands can be easily dealt with. Whether it is the change in slope or the difference in soil texture, stable installation can be achieved through adjustment, significantly broadening the applicable range of the protection device. In areas with large slopes such as mountains, the angle of the support adjustment mechanism and the extension length of the ground anchor mechanism can be adjusted to make the device adapt to the terrain, ensuring that the surveying and mapping marker points are in a horizontal and stable state and guaranteeing the accuracy of surveying and mapping data.

[0015] The base of the present application has a cross-shaped structure, and retractable ground anchor mechanisms are provided at the four ends of the cross. Through the cross-shaped base and the adjustable ground anchor mechanism, the grip of the device on the ground is greatly enhanced. Even in extreme weather conditions such as strong winds, heavy rains, and heavy snows, it can firmly take root on the ground, ensuring that the surveying and mapping marker points are not damaged and providing continuous and stable reference support for surveying and mapping work.

[0016] While the lighting mechanism of this application can illuminate the national land surveying and mapping landmark points, it can also play a warning role in poor lighting conditions. At night or in a dim environment, the lamp beads light up, illuminating the surveying and mapping landmark points, facilitating the measurement operations of the staff. At the same time, the light can also warn the surrounding people to pay attention to the surveying and mapping landmark points here, avoiding accidental touching or damage.

[0017] With the opening and closing photovoltaic panel of this application, when maintenance, calibration and other operations need to be carried out on the surveying and mapping landmark points, the staff can directly open the photovoltaic panel for convenient operation without disassembling the entire protective housing, greatly simplifying the maintenance process and reducing the maintenance cost. At the same time, the photovoltaic panel can efficiently collect solar energy and convert it into electrical energy for storage, providing stable power support for the lighting mechanism equipped inside the device, realizing green environmental protection, sustainable power supply, and reducing the dependence on external power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an adjustable and stable national land surveying and mapping landmark protection device; Figure 2 It is Figure 1 the top view of the structure in Figure 3 It is a schematic structural diagram of the connection between the base, the ground anchor mechanism and the support adjustment mechanism; Figure 4 It is a schematic structural diagram of the adjusting rod; Figure 5 It is a schematic structural diagram of the ground anchor mechanism; Figure 6 It is a schematic structural diagram of the lighting mechanism.

[0019] In the figure: 1. Base; 11. Spherical groove; 12. Round hole; 2. Platform; 3. Protective housing; 31. Flange; 32. Inspection opening; 33. Photovoltaic panel; 34. Guide rail; 4. Ground anchor mechanism; 41. First screw; 42. First sleeve; 43. Spiral head; 44. Vertical groove; 45. Limit block; 5. Support adjustment mechanism; 51. Support rod; 511. Second screw; 512. Second sleeve; 52. Spherical connector; 53. Adjusting rod; 531. Third sleeve; 532. Second screw; 533. Hinge seat; 54. Level; 6. Lighting mechanism; 61. Lamp bead; 62. Battery. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] This embodiment provides an adjustable and stable land surveying and mapping landmark protection device, such as Figures 1-6 As shown, the protection device includes a base 1, a platform 2 arranged on the base 1 for installing land surveying and mapping mark points, and a protective shell 3 arranged on the platform 2 for protecting the land surveying and mapping mark points; the bottom fixing sleeve of the protective shell 3 is provided with a flange 31, and the flange 31 is fixedly mounted on the platform 2 by bolts. The connection is firm and reliable by bolting, ensuring that it will not loosen even in harsh environments. Under harsh conditions such as strong winds and vibrations, this connection method can ensure the tight connection between the protective shell 3 and the platform 2, and continuously provide protection for the surveying and mapping mark points.

[0022] In order to facilitate the observation of land surveying and mapping mark points: the protective shell 3 is a cylindrical structure and is made of transparent high-strength organic glass. On the one hand, this material has excellent impact resistance, can effectively resist the collision of external objects, and protect the surveying and mapping mark points from physical damage; on the other hand, its transparent characteristics make it convenient for staff to observe the status of the mark points at any time without removing the shell, thereby improving work efficiency. In the field working environment, there may be situations such as falling branches and animal collisions. The transparent high-strength organic glass protective shell 3 can protect the surveying and mapping mark points from these accidental impacts. At the same time, the staff can directly observe whether the mark points are damaged or offset without opening the shell, and perform maintenance and calibration in time.

[0023] The base 1 is made of high-strength corrosion-resistant alloy material. This material has excellent resistance to pressure and deformation, can maintain structural stability for a long time in various harsh environments, and effectively extend the service life of the device. In highly corrosive environments such as humid, saline and alkali, such as seaside wetlands or saline-alkali land, this material can resist corrosion and ensure the structural strength and stability of the base 1. It can also avoid deformation when subjected to greater pressure, such as when large machinery passes nearby, ensuring the device's stable support for surveying and mapping landmarks.

[0024] The base 1 is provided with a retractable ground anchor mechanism 4 for fixing the base 1 on the ground; the ground anchor mechanism 4 includes a first screw rod 41, a first sleeve 42 and a screw head 43. The base 1 is provided with a circular hole 12 for the first screw rod 41 to be slidably inserted. The first sleeve 42 is threadedly mounted on the top of the first screw rod 41 and is rotatably mounted on the base 1. The screw head 43 is fixedly connected to the lower end of the first screw rod 41. The first screw rod 41 is provided with a vertical groove 44. A stopper 45 fixedly connected to the circular hole 12 is arranged inside the vertical groove 44. When the first sleeve 42 is rotated, the first screw rod 41 slides up and down in the circular hole 12 due to the cooperation between the vertical groove 44 and the stopper 45. When the first sleeve 42 is rotated clockwise, the first screw rod 41 drives the screw head 43 to move into the ground, increasing the depth of the ground anchor and improving the stability of the device; when the first sleeve 42 is rotated counterclockwise, the first screw rod 41 drives the screw head 43 to move away from the ground, which is convenient for adjusting the position of the ground anchor or installing it on a hard ground. The staff can conveniently rotate the anchor and precisely adjust its extension length according to the actual terrain conditions such as the softness of the soil and the distribution of rocks. For example, in soft soil areas such as deserts, extending the first screw 41 significantly can effectively increase the grip and prevent the device from sinking; on hard ground with more rocks, the length of the first screw 41 can be appropriately shortened to facilitate the installation and fixation of the device.

[0025] In order to improve the installation stability of the base 1: the base 1 is a cross-shaped structure, and a retractable anchor mechanism 4 is provided at each of the four ends of the cross. The cross-shaped base 1 is matched with the adjustable anchor mechanism 4, which greatly enhances the grip of the device on the ground. Even in extremely bad weather such as strong winds, heavy rains, and heavy snow, it can be firmly rooted in the ground to ensure that the surveying and mapping landmarks are not damaged, providing continuous and stable reference support for surveying and mapping work. This structural design increases the contact area and friction between the device and the ground, making it more difficult for the device to be moved or overturned by external forces in harsh environments.

[0026] A support adjustment mechanism 5 for connecting with the platform 2 and used for adjusting the levelness of the platform 2 is arranged on the base 1; the support adjustment mechanism 5 includes a support rod member 51 connected with the platform 2, a spherical connection head 52 fixedly arranged at the bottom of the support rod member 51, and an adjustment rod member 53 connected with the support rod member 51 and the ground anchor mechanism 4. A level gauge 54 is fixedly installed on the platform 2, and a spherical groove 11 adapted to the spherical connection head 52 is provided at the central position of the base 1. The support rod member 51 includes a second screw rod 511 fixedly connected to the lower end of the platform 2 and a second sleeve 512 threadedly sleeved at the bottom of the second screw rod 511, and the bottom of the second sleeve 512 is fixedly connected with the spherical connection head 52. By rotating the second screw rod 511, the overall length of the support rod member 51 can be adjusted smoothly and precisely to meet the requirements of height differences of different terrains. Two adjustment rod members 53 are provided, and are respectively arranged on two adjacent ground anchor mechanisms 4. The adjustment rod member 53 includes a third sleeve 531 and third screw rods 532 symmetrically and threadedly inserted at both ends of the third sleeve 531. One end of the third screw rod 532 away from the third sleeve 531 is hinged with a hinge seat 533, and the two hinge seats 533 are respectively rotatably sleeved on the first sleeve 42 and the second sleeve 512. By rotating the two adjustment rod members 53 to make the two third screw rods 532 on the third sleeve 531 move relatively, the inclined support rod member 51 can be adjusted. Through the cooperation of the adjustment rod member 53 with the support rod member 51 and the spherical connection head 52, not only can the platform 2 rotate 360 degrees in all directions, but also it can be flexibly inclined within a certain angle range. When facing terrains with different slopes, by adjusting these components and using the data fed back by the level gauge 54, the platform 2 is adjusted to a horizontal state to ensure that the surveying and mapping marking points are in accurate positions.

[0027] For convenient lighting: A lighting mechanism 6 is arranged on the platform 2. The lighting mechanism 6 includes lamp beads 61 fixedly arranged inside the protective housing 3 and a storage battery 62 fixedly arranged on the platform 2 and electrically connected to the lamp beads 61. While the lighting mechanism 6 can illuminate the national land surveying and mapping marking points, it can also play a warning role in the case of poor light. In the night or a dim environment, the lamp beads 61 light up to illuminate the surveying and mapping marking points, facilitating the measurement work of the staff. At the same time, the light can also warn the surrounding people to pay attention to the surveying and mapping marking points here to avoid accidental touching or damage. The storage battery 62 provides power for the lamp beads 61 to ensure the continuous operation of the lighting mechanism 6.

[0028] For the convenience of maintaining or calibrating the surveying and mapping marker points: An inspection opening 32 is provided on the protective housing 3. At the inspection opening 32, a photovoltaic panel 33 that fits tightly with the protective housing 3 is provided, and the photovoltaic panel 33 is electrically connected to the storage battery 62. On the side of the photovoltaic panel 33 close to the protective housing 3, guide rails 34 are symmetrically and slidably inserted. The guide rails 34 are fixedly connected to the protective housing 3. Through the openable and closable photovoltaic panel 33, when maintenance, calibration and other operations need to be carried out on the surveying and mapping marker points, the staff does not need to disassemble the entire protective housing 3, and can directly open the photovoltaic panel 33 for convenient operation, greatly simplifying the maintenance process and reducing the maintenance cost. At the same time, the photovoltaic panel 33 can efficiently collect solar energy and convert it into electrical energy for storage, providing stable power support for the lighting mechanism 6 equipped inside the device, realizing green environmental protection, sustainable power supply, and reducing the dependence on external power sources. When there is sunlight during the day, the photovoltaic panel 33 converts solar energy into electrical energy and stores it in the storage battery 62 to provide power for the lighting mechanism 6. When maintenance needs to be carried out on the surveying and mapping marker points, the staff can slide along the guide rails 34 to open the photovoltaic panel 33 and directly operate on the marker points without disassembling the entire protective housing 3, saving time and labor costs.

[0029] During installation, accurately place the base 1 at the selected position of the surveying and mapping marker point to ensure that the marker point is located in the central area of the device. According to the on-site terrain conditions, rotate the ground anchor mechanism 4 at the four ends of the base 1 so that the first screw 41 drives the screw head 43 to penetrate into the ground to an appropriate depth. By continuously adjusting the extension length of the first screw 41, ensure that the base 1 is firmly fixed on the ground, and the stability test can be carried out by slightly shaking the base 1. According to the ground slope, rotate the telescopic support rod 51 to adjust its length, and synchronously adjust the adjusting rod 53 to adjust the angle of the spherical joint 52. During this process, closely observe the data of the level 54 until the horizontal adjustment platform 2 at the top reaches the horizontal state. Firmly fix the protective housing 3 on the horizontal adjustment platform 2 with bolts, check the tightening degree of the bolts to ensure a tight connection. Close the inspection door to complete the installation of the entire device.

[0030] During use, if terrain changes occur, such as the device tilting due to geological settlement, landslide, etc., the extendable ground anchor mechanism 4 can be rotated again to adjust its length, and the angle of the spherical joint 52 can be readjusted. With the help of the level 54, the horizontal adjustment platform 2 is calibrated to the horizontal state again to ensure that the surveying and mapping marker points are always in the accurate position.

[0031] When encountering bad weather, such as strong wind and heavy rain, the ground anchor mechanism 4 can be further rotated according to the actual situation to increase its extension length and enhance the grip of the device on the ground. At the same time, check the sealing performance and connection firmness of the protective housing 3 to ensure that the device can effectively resist the invasion of bad weather and protect the safety of the surveying and mapping marker points.

[0032] The control method of this application is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The provision of the power ground also belongs to the common knowledge in this field. Moreover, this application is mainly used to protect mechanical devices. Therefore, the control method and circuit connection will not be explained in detail in this application.

[0033] It should be noted that various standard parts used in the present invention can be obtained from the market, and non-standard parts can be specially customized. The connection methods adopted in the present invention are also very common means in the mechanical field, and the inventor will not elaborate here.

[0034] As mentioned above, the above are only the preferred specific embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, makes equivalent substitutions or changes, and should be covered by the protection scope of this application.

Claims

1. An adjustable and stable land surveying and mapping mark point protection device, comprising a base (1), a platform (2) arranged on the base (1) for installing the land surveying and mapping mark point, and a protective shell (3) arranged on the platform (2) for protecting the land surveying and mapping mark point; Features: The base (1) is provided with a retractable anchor mechanism (4) for fixing the base (1) on the ground; The base (1) is provided with a support adjustment mechanism (5) connected to the platform (2) and used for adjusting the horizontality of the platform (2); The support adjustment mechanism (5) comprises a support rod (51) connected to the platform (2), a spherical connector (52) fixedly arranged at the bottom of the support rod (51), and an adjustment rod (53) connected to the support rod (51) and the anchor mechanism (4). A level (54) is fixedly mounted on the platform (2), and a spherical groove (11) adapted to the spherical connector (52) is provided at the center of the base (1).

2. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized in that: The base (1) is in a cross-shaped structure, and retractable ground anchor mechanisms (4) are provided at the four ends of the cross.

3. The adjustable and stable land surveying and mapping marker protection device according to claim 1 is characterized in that: The base (1) is made of a high-strength corrosion-resistant alloy material.

4. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized in that: The ground anchor mechanism (4) comprises a first screw rod (41), a first sleeve (42) and a screw head (43); the base (1) is provided with a round hole (12) for the first screw rod (41) to be slidably inserted; the first sleeve (42) is threadedly sleeved on the top of the first screw rod (41) and rotatably mounted on the base (1); the screw head (43) is fixedly connected to the lower end of the first screw rod (41); the first screw rod (41) is provided with a vertical groove (44); a limit block (45) fixedly connected to the round hole (12) is arranged inside the vertical groove (44).

5. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized in that: The support rod (51) comprises a second screw rod (511) fixedly connected to the lower end of the platform (2) and a second sleeve (512) threadedly sleeved on the bottom of the second screw rod (511), the bottom of the second sleeve (512) being fixedly connected to the spherical connector (52).

6. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized in that: Two adjusting rods (53) are provided, and the two adjusting rods (53) are respectively provided on two adjacent ground anchor mechanisms (4). The adjusting rod (53) comprises a third sleeve (531) and third screws (532) threadedly symmetrically inserted at two ends of the third sleeve (531). An end of the third screw (532) away from the third sleeve (531) is hingedly connected to a hinge seat (533). The two hinge seats (533) are rotatably sleeved on the first sleeve (42) and the second sleeve (512), respectively.

7. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized by: The bottom fixed sleeve of the protective housing (3) is provided with a flange (31), and the flange (31) is fixedly mounted on the platform (2) by means of bolts.

8. The adjustable and stable land surveying and mapping marker protection device according to claim 1 is characterized by: The protective shell (3) is a cylindrical structure and is made of transparent high-strength organic glass.

9. The adjustable and stable land surveying and mapping marker point protection device according to claim 1 is characterized by: The platform (2) is provided with a lighting mechanism (6), the lighting mechanism (6) comprising a lamp bead (61) fixedly arranged on the inner side of the protective housing (3) and a storage battery (62) fixedly arranged on the platform (2) and electrically connected to the lamp bead (61).

10. The adjustable and stable land surveying and mapping marker protection device according to claim 9 is characterized in that: The protective shell (3) is provided with an inspection opening (32), and a photovoltaic panel (33) that is tightly fitted with the protective shell (3) is arranged at the inspection opening (32), and the photovoltaic panel (33) is electrically connected to the storage battery (62), and a guide rail (34) is symmetrically slidably inserted on one side of the photovoltaic panel (33) close to the protective shell (3), and the guide rail (34) is fixedly connected to the protective shell (3).

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