Lighting lamp with stable angle adjustment and lighting angle adjustment method

Abstract

The present invention provides a lighting lamp with stable angle adjustment and a lighting angle adjustment method. The present invention relates to the technical field of lighting devices, including a support base and a lighting assembly, and also includes a connecting device for connecting the lighting assembly and the support base, the connecting device including a first connecting portion connected to the support base and a second connecting portion connected to the lighting assembly, the first connecting portion and the second connecting portion being connected via a movable joint, the movable joint including a bearing base and a bearing end, a guide gap for gas to pass through being formed between the bearing base and the bearing end, and also including a driving device for controlling the deflection of the second connecting portion relative to the first connecting portion. The invention can actively prevent rainwater from entering the interior of the movable joint to form ice, has a long service life, a stable control effect, greatly reduces the frequency of inspection and maintenance, effectively avoids the occurrence of accidents, and is suitable for the stable lighting control needs in special scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting devices, and in particular to a lighting lamp with stable angle adjustment and a lighting angle adjustment method. Background Art

[0002] Most lighting fixtures are relatively fixed in setting. In some scenarios, in order to meet lighting needs, it is necessary to set the lighting fixtures to be movable to adjust the lighting angle.

[0003] Some lighting fixtures on the market use motors or traction ropes to adjust the lighting angle of the lamp. Regardless of which method is used to adjust the angle, there is a relatively movable joint between the lamp and the base.

[0004] In order to prevent the movable joint from being affected by freezing rain and unable to rotate, some movable lamps are equipped with protective covers on the outside of the movable joint to prevent freezing rain from entering the inside of the movable joint and affecting its normal deflection; the protective covers include relatively flexible protective covers or relatively rigid protective covers. The former is directly put on the outside of the movable joint, has good fit and a large deflection angle, but the flexible materials are mostly made of chemical materials such as rubber. The fragile connections are prone to aging and damage when exposed to harsh outdoor environments for a long time, affecting the normal sealing protection and requiring manual inspection and replacement on a regular basis. Some inspections and replacements are discovered after damage, affecting the lighting adjustment of the lamp.

[0005] Rigid protective covers are usually made of metal materials with good mechanical properties. However, due to the rigidity of the material, the sealing of the joints is relatively poor, and rainwater can easily enter the gaps of the movable joints and affect the normal deflection of the joints after freezing. Summary of the Invention

[0006] In response to the above problems, the present invention provides a lighting lamp with stable angle adjustment and a lighting angle adjustment method. The invention can actively prevent rainwater from entering the movable joints and forming ice. It has a long service life and stable control effect, greatly reduces the frequency of inspection and maintenance, effectively avoids the occurrence of accidents, and is suitable for stable lighting control needs in special scenarios.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is:

[0008] A lighting lamp with stable angle adjustment includes a support base and a lighting assembly, and also includes a connecting device for connecting the lighting assembly and the support base. The connecting device includes a first connecting part connected to the support base and a second connecting part connected to the lighting assembly. The first connecting part and the second connecting part are connected by a movable joint. The movable joint includes a bearing base and a bearing end. A guide gap for gas to pass through is formed between the bearing base and the bearing end. The lighting lamp also includes a driving device for controlling the deflection of the second connecting part relative to the first connecting part. The lighting lamp also includes a temperature sensor and a humidity sensor. When the temperature sensor detects that the temperature in the environment is lower than a set temperature threshold and the humidity sensor detects that the humidity in the environment is higher than a set threshold, the guide gap is controlled to be in a high-pressure state and continuously pump gas out toward the outside.

[0009] Preferably, the first connecting part is hollow inside, and the first connecting part is connected to a pumping device on the side close to the support seat. The first connecting part is connected to the guide gap to form a first guide channel, and a heating device is provided inside or outside the first guide channel.

[0010] Preferably, the movable joint also includes a sealing ring, which is arranged between the bearing base and the bearing end. The first side of the bearing base is connected to the first connecting part, and the second side of the bearing base is provided with an installation opening adapted to the bearing end, and the sealing ring is located on the side close to the installation opening.

[0011] Preferably, the driving device includes a first traction device located on the first side of the lighting assembly and a second traction device located on the second side of the lighting assembly, and an elastic reset element is provided between the first connecting part and the second connecting part, and under the action of the elastic reset element, the second connecting part has a tendency to move toward the first direction.

[0012] Preferably, a solar panel located outside the lighting assembly is provided at the upper end of the support seat, the solar panel is arranged at an angle and an air blowing assembly is installed on the higher side, a control valve is provided at the lower end of the air blowing assembly, and the first end of the first traction device is connected to the control valve for adjusting the opening and closing state of the control valve.

[0013] Preferably, the control valve has reset elasticity and includes a control valve seat, a control piston is sealingly and slidingly connected inside the control valve seat, a telescopic end is fixed to the side wall of the control piston, the telescopic end passes through the control valve seat and is connected to the first traction device, the control piston separates the control valve seat into a first control chamber and a second control chamber, so the first control chamber is connected to the first guide channel, and the control valve seat is away from the side wall of the first control chamber and is provided with a guide air nozzle connected to the air blowing assembly.

[0014] Preferably, the control valve seat is connected to the solar panel via a rotating connection workpiece, and the control valve seat is located on a moving path of the second connection portion.

[0015] Preferably, the second connecting part and the movable joint are hollowly arranged to form a second guide channel, a first conducting opening is opened on the first side of the movable joint to communicate with the first guide channel, a second conducting opening is opened on the second side of the movable joint to communicate with the interior of the second connecting part, and the second connecting part is connected to the first control chamber.

[0016] Preferably, the first traction device includes a first traction rope arranged between the telescopic end and the second connecting part, and a guide air tube is also provided inside or outside the first traction rope, the first end of the guide air tube is connected to the first control chamber, and the second end of the guide air tube is connected to the second connecting part.

[0017] A method for adjusting the lighting angle, using the above-mentioned lighting lamp with stable angle adjustment, includes the following steps: S1. According to the lighting needs in the environment, controlling the predetermined angle of deflection of the second connecting part relative to the first connecting part through a driving device; S2. When the temperature sensor detects that the temperature in the environment is lower than the set temperature threshold and the humidity sensor detects that the humidity in the environment is higher than the set threshold, controlling the guide gap to be in a high-pressure state and continuously pumping gas toward the outside to ensure that the inside of the movable joint is in a dry state to avoid ice forming and affecting the angle adjustment.

[0018] The beneficial effects of the present invention are:

[0019] Compared with the existing technology, through the above-mentioned structural design, when the ambient temperature is low and the humidity is high, the guide gap can be controlled to be in a high-pressure state, and the gas can be continuously discharged from the outside through the guide gap. The guide gap can be dried while preventing liquid in the environment from entering the guide gap, thereby avoiding the formation of ice to the greatest extent and ensuring that the overall equipment can continuously and efficiently perform deflection control. The invention can actively prevent rainwater from entering the movable joint to form ice, has a long service life, and a stable control effect. It greatly reduces the frequency of inspection and maintenance, effectively avoids accidents, and is suitable for stable lighting control needs in special scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the top view structure.

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the main structure.

[0023] Figure 4 For the present invention Figure 1 Schematic diagram of the side structure.

[0024] Figure 5 For the present invention Figure 2 AA section structural diagram.

[0025] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B.

[0026] Figure 7 For the present invention Figure 5 Enlarged structural diagram at C.

[0027] Figure 8 For the present invention Figure 5 The enlarged structural diagram at D is shown.

[0028] In the figure: 100, support seat; 200, second traction device; 300, first traction device; 400, lighting assembly; 500, connecting device; 510, first connecting part; 520, movable joint; 5201, guide gap; 521, bearing base; 522, bearing end; 5221, first conduction opening; 5222, second conduction opening; 523, sealing ring; 530, second connecting part; 600, solar panel; 610, air blowing assembly; 611, air blowing port; 620, control valve; 6201, first control chamber; 621, control valve seat; 622, control piston; 623, telescopic end. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and examples.

[0030] In order to solve the problems existing in the background technology, Figure 1 -Attached Figure 8 A lighting lamp with stable angle adjustment includes a support base 100 and a lighting assembly 400, and also includes a connecting device 500 for connecting the lighting assembly 400 and the support base 100. The connecting device 500 includes a first connecting part 510 connected to the support base 100 and a second connecting part 530 connected to the lighting assembly 400. The first connecting part 510 and the second connecting part 530 are connected by a movable joint 520. Under the action of the movable joint 520, the second connecting part 530 here can be deflected by a predetermined angle relative to the first connecting part 510 to adjust the lighting angle of the lighting assembly 400. The second connecting part 530 can be adjusted to deflect up and down, left and right, or at an inclined angle according to lighting needs.

[0031] Specifically, the movable joint 520 includes a supporting base 521 and a supporting end 522. A guide gap 5201 is formed between the supporting base 521 and the supporting end 522 for gas to pass through. It also includes a driving device for controlling the deflection of the second connecting part 530 relative to the first connecting part 510. The deflection angle of the second connecting part 530 can be adjusted by the driving device to realize drive control.

[0032] It also includes a temperature sensor and a humidity sensor. When the temperature sensor detects that the temperature in the environment is lower than the set temperature threshold and the humidity sensor detects that the humidity in the environment is higher than the set threshold, the guide gap 5201 is controlled to be in a high-pressure state to continuously pump gas outward. Continuously pumping out gas can prevent rainwater from the outside from entering the guide gap 5201, and prevent rainwater from freezing inside to form ice cubes after the temperature drops, affecting the normal rotation of the movable joint 520.

[0033] The gas mentioned above can be selected as a gas of a certain temperature, which can heat the guide gap 5201 and increase the ambient temperature to further avoid the formation of ice.

[0034] In summary, through the above-mentioned structural design, when the ambient temperature is low and the humidity is high, the guide gap 5201 can be controlled to be in a high-pressure state, and the gas can be continuously discharged from the outside through the guide gap 5201, so that the guide gap 5201 can be dried while preventing liquid in the environment from entering the guide gap 5201, thereby avoiding the formation of ice to the greatest extent and ensuring that the overall equipment can continuously and efficiently perform deflection control; the invention can actively prevent rainwater from entering the movable joint to form ice, has a long service life, and a stable control effect, greatly reduces the frequency of inspection and maintenance, effectively avoids the occurrence of accidents, and is suitable for stable lighting control needs in special scenarios.

[0035] Specifically, the first connecting part 510 is hollow inside, and the first connecting part 510 is connected to the pumping equipment on the side close to the support seat 100. The first connecting part 510 is connected to the guide gap 5201 to form a first guide channel, and a heating device is provided inside or outside the first guide channel.

[0036] The gas pumping device can continuously pump gas into the first connection part 510, so that the first connection part 510 and the guide gap 5201 are continuously in a high-pressure state; the gas can be heated by the heating device to increase the temperature of the surrounding environment; the heating device here can be set inside the movable joint 520 to reduce heat loss during the transfer process.

[0037] It should also be noted that in order to prevent rainwater from entering the movable joint 520 under high temperature conditions, the setting program can be changed. As long as the ambient humidity is greater than the set threshold, the gas is controlled to be pumped out to prevent rainwater from entering; a pumping device can also be installed inside the first connecting part 510 to extract this part of the liquid to avoid the impact of continuous accumulation; the above structure can be set by those skilled in the art as needed and will not be repeated here.

[0038] Specifically; the movable joint 520 also includes a sealing ring 523, which is arranged between the bearing base 521 and the bearing end 522. The first side of the bearing base 521 is connected to the first connecting part 510, and the second side of the bearing base 521 has an installation opening that is compatible with the bearing end 522. The sealing ring 523 is located on the side close to the installation opening.

[0039] The sealing ring 523 here is arranged between the bearing end 522 and the bearing base 521 to play the role of lubrication connection, reduce the contact area between the bearing base 521 and the bearing end 522, and reduce rotational friction. At the same time, through the above-mentioned structural design, the gap inside the guide gap 5201 is larger, and the gap outside the sealing ring 523 is smaller. The high-pressure gas in the guide gap 5201 can be concentrated on the sealing ring 523 near the outside to prevent rainwater from entering the inside.

[0040] The supporting base 521 and the supporting end 522 here can be selected to be spherical or cylindrical. The direction of deflection of the spherical joint can be changed arbitrarily to meet the lighting needs of different scenes; the cylindrical joint has smaller sealing connections on both sides, which further enhances the centralized discharge of gas.

[0041] Specifically, the driving device includes a first traction device 300 located on the first side of the lighting assembly 400 and a second traction device 200 located on the second side of the lighting assembly 400. An elastic reset element is provided between the first connecting part 510 and the second connecting part 530. Under the action of the elastic reset element, the second connecting part 530 has a tendency to move toward the first direction.

[0042] Under the action of the elastic reset element, the second connecting part 530 is in a vertical state in the absence of external force. The traction of the first traction device 300 and the second traction device 200 can apply force to the lighting assembly 400 to control the lighting assembly 400 to deflect toward the first side or toward the second side, thereby realizing traction control.

[0043] Compared with the gear deflection control, the rope traction control can exert force at a position far away from the movable joint 520, with a larger torque, smaller control force required for deflection, and better control effect.

[0044] A solar panel 600 is provided at the upper end of the support base 100 and is located on the outside of the lighting assembly 400. The solar panel 600 can generate electricity, and the entire lighting lamp can be independently powered and stored. The solar panel 600 is arranged at an angle and an air blowing assembly 610 is installed on the higher side. The air blowing assembly 610 can blow gas from the higher side to the lower side. The gas can act on the surface of the solar panel 600, thereby preventing snow or dust from affecting the normal absorption of solar energy.

[0045] A control valve 620 is provided at the lower end of the air blowing assembly 610. The first end of the first traction device 300 is connected to the control valve 620 for adjusting the opening and closing state of the control valve 620. The opening and closing of the control valve 620 can be adjusted through the first traction device 300. The state of the air blowing assembly 610 can be periodically controlled during the process of adjusting the rotation of the lighting assembly 400, thereby ensuring the cleanliness of the surface of the solar panel 600 and avoiding the waste of resources caused by continuous blowing of gas.

[0046] Further; the control valve 620 has a reset elasticity, where the control valve 620 is in a normally closed state under the action of the reset elasticity, the control valve 620 includes a control valve seat 621, the control valve seat 621 is internally sealed and slidably connected to a control piston 622, and the side wall of the control piston 622 is fixed with a telescopic end 623, which passes through the control valve seat 621 and is connected to the first traction device 300, and the lighting assembly 400 is in accordance with the attached Figure 5 As shown, after the counterclockwise deflection, the first traction device 300 is tightened and pulls the telescopic end 623 toward the outside, and finally drives the internal control piston 622 to slide to different positions to achieve opening and closing control.

[0047] A return spring may be provided between the control piston 622 and the control valve seat 621. The control piston 622 slides to the inner position and is in a closed state to prevent gas discharge. The control piston 622 slides to the outer position and is in an open state to achieve gas conduction.

[0048] The control piston 622 separates the control valve seat 621 into a first control chamber 6201 and a second control chamber, so the first control chamber 6201 is connected to the first guide channel, and the control valve seat 621 is away from the side wall of the first control chamber 6201 and is provided with a guide air nozzle connected to the air blowing assembly 610. When the control piston 622 slides to the inside under the action of elasticity, the guide air nozzle and the first control chamber 6201 are in a cut-off state. At this time, the gas in the first control chamber 6201 cannot pass through the guide air nozzle and finally enter the air blowing assembly 610 for discharge. At this time, the control valve 620 is in a closed state.

[0049] After the telescopic end 623 moves outward to the extreme position, the first control chamber 6201 is in its largest state, and the guide air nozzle can be connected to the first control chamber 6201. At this time, the gas in the first control chamber 6201 can flow through the guide air nozzle and finally be blown out from the air blowing assembly 610, thereby cleaning the snow or dust on the surface of the solar panel 600.

[0050] Through the above-mentioned structural design, the traction effect of the first traction device 300 can be fully utilized to realize automatic opening and closing control of the control valve 620 during the deflection movement of the second connecting part 530, which is simple and efficient; at the same time, the gas in the first connecting part 510 can be discharged regularly to achieve pressure relief, thereby avoiding the continued accumulation of internal gas and causing local structural damage.

[0051] The control valve seat 621 is connected to the solar panel 600 by a rotating connecting workpiece, and the control valve seat 621 is located on the moving path of the second connecting part 530. The control valve 620 here can be deflected according to the pulling direction of the first traction device 300, so that the telescopic end 623 and the first traction device 300 are located on the same straight line, which can avoid the bending angle in the first direction at the connection between the first traction device 300 and the telescopic end 623, resulting in local excessive force and damage.

[0052] Furthermore, the control valve 620 is located on the deflection path of the second connection portion 530 , which can also avoid a bending angle in the second direction at the connection between the first traction device 300 and the telescopic end 623 , thereby ensuring the stability of the overall structure.

[0053] Furthermore, the second connecting part 530 and the movable joint 520 are hollowly arranged, a first conducting opening 5221 is opened on the first side of the movable joint 520 to communicate with the first guide channel, a second conducting opening 5222 is opened on the second side of the movable joint 520 to communicate with the interior of the second connecting part 530, and the second connecting part 530 is connected to the first control chamber 6201.

[0054] Through the above-mentioned structural design, the gas in the first guide channel can be fully utilized, and the pressure in the first guide channel can be relieved. At the same time, only a set of pumping equipment and heating devices are needed to achieve air blowing and cleaning of the two areas, which can prevent liquid from entering the guide gap 5201. At the same time, excess gas can be used to clean the snow on the upper surface of the solar panel 600, streamlining the relevant structure, optimizing the internal space, and maximizing the gas utilization efficiency.

[0055] Furthermore; the first traction device 300 includes a first traction rope arranged between the telescopic end 623 and the second connecting part 530, and a guide air pipe is also provided inside or outside the first traction rope. The first end of the guide air pipe is connected to the first control chamber 6201, and the second end of the guide air pipe is connected to the second connecting part 530. The gas can be diverted and controlled through the guide pipe, and the structure of the first traction device 300 can be fully utilized to achieve the optimal path conduction of the gas.

[0056] The first traction device 300 here can be selected as a non-powered safety rope, which is made of thermal insulation material and woven on the outside of the guide air pipe. It can protect the guide air pipe while insulating the airflow. The gas with a certain temperature blown out from the air blowing component 610 can achieve a better cleaning effect.

[0057] The present invention is further described below in conjunction with a method for adjusting the lighting angle.

[0058] A lighting angle adjustment method, using the above-mentioned lighting lamp with stable angle adjustment, comprises the following steps:

[0059] S1. According to the lighting needs in the environment, the second connecting part 530 is controlled by the driving device to deflect at a predetermined angle relative to the first connecting part 510; the second connecting part 530 here can be periodically deflected within a certain angle to achieve periodic lighting on a predetermined path; it is also possible to choose to perform sensing control through a probe to detect the target object in the environment, and control the second connecting part 530 to deflect at a predetermined angle to achieve tracking lighting of the target object.

[0060] S2. When the temperature sensor detects that the temperature in the environment is lower than the set temperature threshold and the humidity sensor detects that the humidity in the environment is higher than the set threshold, the guide gap 5201 is controlled to be in a high-pressure state and continuously pump gas outward to ensure that the interior of the movable joint 520 is in a dry state to avoid ice forming and affecting the angle adjustment.

[0061] The above structural design can ensure the normal and stable deflection of the movable joint 520, avoid the freezing rain environment causing the movable joint 520 to freeze and be unable to deflect normally, and ensure the normal and stable lighting adjustment.

[0062] It is foreseeable that the above-mentioned lighting lamp and method can be used in outdoor camps, special supervision or lighting-required environments; the above-mentioned lighting lamp can be selected from common street lamps, hanging lamps, searchlights, etc.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lighting lamp with stable angle adjustment, comprising a support base (100) and a lighting assembly (400), and further comprising a connecting device (500) for connecting the lighting assembly (400) and the support base (100), characterized in that: The connecting device (500) comprises a first connecting portion (510) connected to the support seat (100) and a second connecting portion (530) connected to the lighting assembly (400), the first connecting portion (510) and the second connecting portion (530) being connected via a movable joint (520), the movable joint (520) comprising a bearing base (521) and a bearing end (522), a guide gap (5201) for gas to pass through being formed between the bearing base (521) and the bearing end (522), and a driving device for controlling the deflection of the second connecting portion (530) relative to the first connecting portion (510); It also includes a temperature sensor and a humidity sensor. When the temperature sensor detects that the temperature in the environment is lower than a set temperature threshold and the humidity sensor detects that the humidity in the environment is higher than a set threshold, the guide gap (5201) is controlled to be in a high-pressure state and continuously pump gas outward. The first connecting portion (510) is connected to a pumping device on one side close to the support seat (100), and the first connecting portion (510) is connected to the guide gap (5201) to form a first guide channel, and a heating device is provided inside or outside the first guide channel.

2. The angle-adjustable lighting lamp according to claim 1, characterized in that: The movable joint (520) further includes a sealing ring (523), which is arranged between the bearing base (521) and the bearing end (522); a first side of the bearing base (521) is connected to the first connecting portion (510); a second side of the bearing base (521) is provided with a mounting opening adapted to the bearing end (522); and the sealing ring (523) is located on a side close to the mounting opening.

3. The angle-adjustable lighting lamp according to claim 1, characterized in that: The driving device comprises a first traction device (300) located on a first side of the lighting assembly (400) and a second traction device (200) located on a second side of the lighting assembly (400); an elastic reset element is provided between the first connecting portion (510) and the second connecting portion (530); and under the action of the elastic reset element, the second connecting portion (530) has a tendency to move toward a first direction.

4. The angle-adjustable lighting lamp according to claim 3, characterized in that: A solar panel (600) is provided at the upper end of the support seat (100) and is located outside the lighting assembly (400). The solar panel (600) is arranged obliquely and an air blowing assembly (610) is installed on the higher side. A control valve (620) is provided at the lower end of the air blowing assembly (610). A first end of the first traction device (300) is connected to the control valve (620) for adjusting the opening and closing state of the control valve (620).

5. The angle-adjustable lighting lamp according to claim 4, characterized in that: The control valve (620) has reset elasticity and includes a control valve seat (621). The control valve seat (621) is sealed and slidably connected to a control piston (622) inside. A telescopic end (623) is fixed to the side wall of the control piston (622). The telescopic end (623) passes through the control valve seat (621) and is connected to the first traction device (300). The control piston (622) separates the control valve seat (621) into a first control chamber (6201) and a second control chamber, so that the first control chamber (6201) is connected to the first guide channel. The control valve seat (621) is provided with a guide air nozzle connected to the air blowing assembly (610) on the side wall away from the first control chamber (6201).

6. The angle-adjustable lighting lamp according to claim 5, characterized in that: The control valve seat (621) is connected to the solar panel (600) via a rotating connection workpiece, and the control valve seat (621) is located on a moving path of the second connection portion (530).

7. The lighting lamp with stable angle adjustment according to claim 5, characterized in that: The second connecting portion (530) and the movable joint (520) are hollowly arranged to form a second guide channel. A first conducting opening (5221) is opened on the first side of the movable joint (520) to communicate with the first guide channel. A second conducting opening (5222) is opened on the second side of the movable joint (520) to communicate with the interior of the second connecting portion (530). The second connecting portion (530) is connected to the first control chamber (6201).

8. The angle-adjustable lighting lamp according to claim 7, characterized in that: The first traction device (300) comprises a first traction rope arranged between the telescopic end (623) and the second connecting portion (530), and a guide air tube is further arranged inside or outside the first traction rope, wherein the first end of the guide air tube is connected to the first control chamber (6201), and the second end of the guide air tube is connected to the second connecting portion (530).

9. A lighting angle adjustment method, characterized in that: Using the angle-adjustable stable lighting lamp according to any one of claims 1 to 8 comprises the following steps: S1. According to the lighting requirements in the environment, controlling the second connecting portion (530) to deflect to a predetermined angle relative to the first connecting portion (510) by a driving device; S2. When the temperature in the environment detected by the temperature sensor is lower than the set temperature threshold and the humidity in the environment detected by the humidity sensor is higher than the set threshold, the guide gap (5201) is controlled to be in a high-pressure state and continuously pump gas outward to ensure that the inside of the movable joint (520) is in a dry state to avoid ice forming and affecting the angle adjustment.

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