Outdoor solar street lamp

Abstract

The invention belongs to the technical field of solar street lamps, and discloses an outdoor solar street lamp which comprises a stand column, a lamp body and a top plate, a support is installed at the top of the top plate, a photovoltaic panel is installed at the top of the support, the stand column is hollow, and an air column communicating with the stand column is fixedly installed at the top of the top plate. The outer side face of the photovoltaic panel is fixedly connected with an air bag, and a communicating pipe is installed between the air column and the air bag in a communicating mode. According to the street lamp, the interior of the stand column is redesigned, a sealing ring abuts against transmission liquid filled in an inner cavity of a placement ring in a sealed mode, when a clamping plate is completely clamped into the placement cavity, the transmission liquid is blocked in a liquid storage area, and at the moment, the set positions of a sealing column and a limiting block are maintained through the characteristic that the transmission liquid cannot be compressed; the four sets of limiting blocks form a circular ring structure and limit the fixing block downwards, so that the fixing block cannot move upwards, and the design is beneficial to improving the reliability of self-protection of the street lamp.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar street lamps, and in particular relates to an outdoor solar street lamp. Background Art

[0002] As a lighting device driven by renewable energy, solar street lights greatly reduce the burden of electricity supply, conform to the concept of green energy and environmental protection, and have the characteristics of sustainable development. Solar street lights are equipped with solar panels, which receive direct sunlight and charge the generated electricity into batteries for storage. When it gets dark, the batteries provide power to the street lights, thus achieving self-sufficiency in electricity. In the prior art, the columns of solar street lights are installed on the road surface through embedded parts. When hit by a vehicle, the columns are prone to collapse due to their limited structural strength. At this time, since the solar panels used for power generation lack corresponding protection, the column collapse caused by the violent impact of the vehicle may cause damage to the solar panels. In the prior art, measures such as strengthening the columns or anti-tilting are generally adopted to prevent such extreme emergencies. However, these are too passive. The kinetic energy and destructive power generated by a high-speed vehicle collision are extremely large, and the columns will basically collapse in this case. In addition, the above protection methods increase the manufacturing cost of the columns, and the peripheral anti-tilting measures are not conducive to equipment maintenance. Therefore, there is an urgent need for an outdoor solar street light that can provide effective protection in emergencies. Summary of the Invention

[0003] The object of the present invention is to provide an outdoor solar street light to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outdoor solar street light, comprising a column, a lamp body and a top plate, a bracket is installed on the top of the top plate, a photovoltaic panel is installed on the top of the bracket, the interior of the column is hollow, an air column connected to the column is fixedly installed on the top of the top plate, the outer side of the photovoltaic panel is fixedly connected to the air bag, a connecting pipe is installed between the air column and the air bag, a sealing cylinder is installed on the bottom of the top plate, the internal sealing sleeve of the sealing cylinder is provided with a piston, a fixing cylinder is installed on the bottom of the inner wall of the column, a spring 1 and a telescopic column are movably sleeved in the interior of the fixing cylinder from bottom to top, the two ends of the spring 1 are elastically connected to the telescopic column and the fixing cylinder respectively, the top of the telescopic column is fixedly connected with a fixing block, and the inner wall of the column is fixedly installed with the fixing blocks located on the fixing cylinder from bottom to top. The invention provides a placing ring, a supporting ring and a fixing ring. The placing ring has multiple groups of placing cavities inside. The inner ring surface of the placing ring is provided with a sealing ring connected with the placing cavity. The internal sealing sleeve of the sealing ring is provided with a sealing column. The outer end of the sealing column is fixedly connected to the limiting block. Multiple groups of the limiting blocks are equidistantly adapted to abut against the outer surface of the fixed block. The top of the placing ring has multiple groups of slots connected with the placing cavity. The internal sealing of the slots is connected with a card plate. The inner cavity of the placing cavity is filled with transmission fluid, and the sealing sleeve is provided with a spring three and a sealing head located at one end of the card plate. The bottom of the fixing ring is elastically connected with a spring two. The bottom end of the spring two is elastically connected with a slip ring and a connecting ring. The bottom of the connecting ring is fixedly connected with the card plate. The top of the support ring is slidably installed with multiple groups of sliders. The sliders and the outer surface of the slip ring are adapted to abut against each other.

[0005] As a preferred solution of the present invention, the shape of the fixed block is a truncated cone, and the number of the placement cavity, sealing column and limit block is four groups. The four groups of limit blocks form a closed circular ring structure and limit the fixed block downward.

[0006] As a preferred solution of the present invention, the card plate divides the inner cavity of the placement cavity into a liquid storage area and a buffer area. The liquid storage area is located at one end of the inner side of the card plate and the sealing column. The transmission fluid is located in the liquid storage area. The spring three and the sealing head are both located in the buffer area. The two ends of the spring three are elastically connected to the placement cavity and the sealing head respectively, and the sealing head is in contact with the card plate.

[0007] As a preferred solution of the present invention, the cross-section of the card plate is U-shaped, the bottom of the card plate is adapted to abut against the bottom of the placement cavity, and the top of the card plate protrudes from the top of the placement ring.

[0008] As a preferred solution of the present invention, multiple groups of limit bars are fixedly connected to the top of the support ring, the number of the sliders is the same as the limit bars, a sliding groove is provided at the bottom of the slider, the limit bars are slidably installed in the sliding groove, and the slider can move horizontally toward the center of the support ring under the limitation of the limit bars.

[0009] As a preferred solution of the present invention, the connecting ring is fixedly connected to the bottom of the slip ring, and the connecting ring is located between the placement ring and the support ring.

[0010] As a preferred solution of the present invention, the outer surface of the slider is adapted to abut against the inner wall of the column, and the slider is made of solid cast iron material.

[0011] As a preferred solution of the present invention, the diameter of the bottom end of the fixed block is smaller than the inner diameter of the slip ring, and the upper portion of the outer surface of the slip ring is provided with an inclined surface that fits and abuts against the top of the slider.

[0012] The beneficial effects of the present invention are as follows: 1. This street lamp's interior has been redesigned to provide simultaneous airbag protection during a vehicle collision. This device features a fixed cylinder located at the bottom of the column's inner wall. Inside this cylinder, a spring, compressed to its limit, releases its elastic potential energy, pushing the telescopic column, fixed block, and piston upward. This generates air pressure within the sealing cylinder, which acts on the airbag through the air column and connecting tube, enabling rapid expansion and providing protection. Four sets of circumferentially equidistant stoppers limit the release of the spring's elastic potential energy. These stoppers are connected to the sealing column and, through a sealing ring, seal against the transmission fluid in the inner cavity of the placement ring. When the retaining plate is fully engaged in the placement cavity, the transmission fluid is trapped in the reservoir. The incompressible nature of the transmission fluid maintains the predetermined positions of the sealing column and stoppers. The four sets of stoppers form a circular structure, restraining the fixed block downward, preventing it from moving upward. This design helps improve the reliability of the street lamp's self-protection system.

[0013] 2. Then, the slip ring and the connecting ring are pressed downward by a spring 2 provided with a fixed ring and an elastic connection at its bottom. The bottom of the connecting ring is connected to the card plate. Normally, the elastic force of the spring 2 is transmitted to the card plate through the slip ring and the connecting ring, so that the card plate is firmly stuck in the placement cavity and the transmission fluid in the liquid storage area is prevented from flowing into the buffer zone, so that the limit block can abut against the fixed block for limiting position. A support ring is provided between the slip ring and the connecting ring, and multiple groups of sliders are slidably installed on the top of the support ring. The sliding groove at the bottom of the slider is slidably adapted to the limit bar fixedly connected to the top of the support ring. The inclined surfaces between the slider and the outer surface of the slip ring are adapted to abut against each other. When the column is hit by a vehicle and quickly dumps, at this time, one of the multiple independent sliders can be moved under the action of inertia. It moves toward the side of the axis close to the piston. This group of sliders is located opposite to the tilting direction of the column. The moving slider begins to exert pressure on the slip ring, causing the slip ring to drive the connecting ring and the card to move upward and connect the buffer zone and the liquid storage area. At this time, the transmission fluid begins to flow to the buffer zone, and the spring begins to release its elastic potential energy and pushes the fixed block and the piston upward. The limit block drives the sealing column toward the inner side of the sealing ring under the push of the fixed block. The sealing head is pushed by the transmission fluid and compresses spring three. At this time, the piston can move upward quickly, generating high-pressure airflow in the inner cavity of the sealing cylinder to assist the airbag in expanding. The above design uses the inertia of the slider to automatically identify whether the column is in high-speed movement and tilting state, thereby making the entire airbag inflation operation fully automated.

[0014] 3. The inner cavity of the placement chamber designed in this device is divided into a liquid storage area and a buffer area. The function is: when the card plate seal is connected to the placement chamber, the liquid storage area and the buffer area are sealed and isolated. Even if the spring pushes the telescopic column and the fixed block upward and transmits the pressure to the limit block, the limit block pushes the sealing column toward the inner side of the placement chamber. At this time, the transmission fluid fills the entire liquid storage area. When it cannot enter the buffer area, due to the incompressible nature of the transmission fluid, the limit block does not move, just limiting the fixed block and offsetting the elastic force from the spring. When the slider pushes the slip ring, the connecting ring and the card plate upward, the liquid storage area and the buffer area are connected, and the transmission fluid can flow into the buffer area and push the sealing head to compress the spring three. At this time, the fluidity of the transmission fluid cannot provide abutment and limit the fixed block by the limit block, that is, the limiting effect of the limit block on the fixed block is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front perspective schematic diagram of the overall structure of the present invention; Figure 2 It is a front cutaway schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at center A; Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at position C in the middle; Figure 6 This is a schematic diagram of the back structure of the top plate, bracket, photovoltaic panel, air bag, air column, connecting pipe and sealing cylinder of the present invention; Figure 7 It is a partial separation diagram of the fixed cylinder, telescopic column, fixed block, fixed ring, spring 2, slip ring, support ring, slip ring, limit strip and slider of the present invention; Figure 8 Schematic diagram of an axial section of the fixing ring, slip ring, support ring, limit strip, slider, telescopic column and fixing block of the present invention; Figure 9 A top view cutaway diagram of a placement ring of the present invention; Figure 10 It is a bottom perspective schematic diagram of the fixing ring, spring 2, slip ring, support ring, limit bar and slider of the present invention; Figure 11 This is a schematic diagram of the separation of the fixing ring, spring 2, slip ring, support ring, limit strip, slider and connecting ring of the present invention; Figure 12 This is a partial separation diagram of the telescopic column, fixed block, slip ring, support ring, placement ring, sealing ring, sealing column, limit block, clamping plate, spring and sealing head of the present invention.

[0016] In the figure: 1. column; 2. lamp body; 3. top plate; 4. bracket; 5. photovoltaic panel; 6. airbag; 7. air column; 8. connecting pipe; 9. sealing cylinder; 10. piston; 11. fixing cylinder; 12. spring 1; 13. telescopic column; 14. fixing block; 15. fixing ring; 16. spring 2; 17. slip ring; 18. support ring; 19. limit strip; 20. slider; 21. slide groove; 22. connecting ring; 23. placement ring; 24. placement cavity; 25. sealing ring; 26. sealing column; 27. limit block; 28. slot; 29. ​​card plate; 30. transmission fluid; 31. spring 3; 32. sealing head. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figures 1 to 12As shown, the embodiment of the present invention provides an outdoor solar street light, including a column 1, a lamp body 2 and a top plate 3, a bracket 4 is installed on the top of the top plate 3, a photovoltaic panel 5 is installed on the top of the bracket 4, the interior of the column 1 is hollow, and an air column 7 connected to the column 1 is fixedly installed on the top of the top plate 3, the outer side of the photovoltaic panel 5 is fixedly connected to the air bag 6, a connecting pipe 8 is installed between the air column 7 and the air bag 6, a sealing cylinder 9 is installed on the bottom of the top plate 3, and the inner sealing sleeve of the sealing cylinder 9 is provided with a piston 10, a fixing cylinder 11 is installed at the bottom of the inner wall of the column 1, and a spring 12 and a telescopic column 13 are movably sleeved in the interior of the fixing cylinder 11 from bottom to top, and the two ends of the spring 12 are elastically connected to the telescopic column 13 and the fixing cylinder 11 respectively, and the top of the telescopic column 13 is fixedly connected with a fixing block 14, and the inner wall of the column 1 is fixedly installed with a placement ring 23, a support ring 18 and a fixing ring located above the fixing cylinder 11 from bottom to top. 15. The interior of the placement ring 23 is provided with multiple groups of placement cavities 24. The inner ring surface of the placement ring 23 is provided with a sealing ring 25 connected to the placement cavity 24. The internal sealing sleeve of the sealing ring 25 is provided with a sealing column 26. The outer end of the sealing column 26 is fixedly connected to the limit block 27. Multiple groups of limit blocks 27 are equidistantly adapted to abut against the outer surface of the fixed block 14. The top of the placement ring 23 is provided with multiple groups of card grooves 28 connected to the placement cavity 24. The internal sealing card of the card groove 28 is connected with a card plate 29. The inner cavity of the placement cavity 24 is filled with transmission fluid 30, and the sealing sleeve is provided with a spring three 31 and a sealing head 32 located at one end of the card plate 29. The bottom of the fixed ring 15 is elastically connected with a spring two 16. The bottom end of the spring two 16 is elastically connected with the slip ring 17 and the connecting ring 22. The bottom of the connecting ring 22 is fixedly connected to the card plate 29. The top of the support ring 18 is slidably installed with multiple groups of sliders 20. The sliders 20 and the outer surfaces of the slip ring 17 are adapted to abut against each other. The interior of the column 1 of this street lamp has been redesigned to enable it to generate a synchronous protection function for the airbag 6 when a vehicle collides with it. This device is provided with a fixed cylinder 11 located at the bottom of the inner wall of the column 1, and a spring 12 installed inside it that is compressed to the limit. The spring 12 releases its elastic potential energy upward, and pushes the telescopic column 13, the fixed block 14 and the piston 10 to move upward continuously, and generates air pressure inside the sealing cylinder 9. The air pressure acts on the interior of the airbag 6 through the air column 7 and the connecting pipe 8, so that the airbag 6 can expand rapidly in a short time, provide protection for the airbag 6, and limit the release of the spring 12. The elastic potential energy is represented by four groups of circumferentially equidistantly distributed limit blocks 27. The limit blocks 27 are connected to the sealing column 26 and are sealed against the transmission fluid 30 filled in the inner cavity of the placement ring 23 through the sealing ring 25. When the card plate 29 is completely inserted into the placement cavity 24, the transmission fluid 30 is sealed in the liquid storage area. At this time, the sealing column 26 and the limit blocks 27 are maintained in their predetermined positions by the incompressible property of the transmission fluid 30. The four groups of limit blocks 27 form a circular structure and limit the fixed block 14 downward, so that the fixed block 14 cannot move upward. This design helps to improve the reliability of the street lamp's self-protection.

[0019] Then, the slip ring 17 and the connecting ring 22 are pressed downward by the spring 2 16 provided with the fixing ring 15 and the elastic connection at its bottom. The bottom of the connecting ring 22 is connected to the card plate 29. In normal times, the elastic force of the spring 2 16 is transmitted to the card plate 29 through the slip ring 17 and the connecting ring 22, so that the card plate 29 is firmly stuck in the placement cavity 24 and prevents the transmission fluid 30 in the liquid storage area from flowing into the buffer zone, so that the limit block 27 can abut against the fixed block 14 for limitation. A support ring 18 is provided between the slip ring 17 and the connecting ring 22, and multiple groups of sliders 20 are slidably installed on its top. The slide groove 21 opened at the bottom of the slider 20 is slidably adapted to the limit bar 19 fixedly connected to the top of the support ring 18. The inclined surfaces between the slider 20 and the outer surface of the slip ring 17 are adapted to abut against each other. When the column 1 is hit by a vehicle and quickly falls over, at this time, one of the multiple independent sliders 20 can be in inertia. Under the action of the slider 20, it moves toward the side of the axis close to the piston 10. The group of sliders 20 is located opposite to the tilting direction of the column 1. The moving slider 20 begins to exert pressure on the slip ring 17, so that the slip ring 17 drives the connecting ring 22 and the card plate 29 to move upward and connect the buffer zone and the liquid storage area. At this time, the transmission fluid 30 begins to flow to the buffer zone, and the spring 12 begins to release its elastic potential energy and pushes the fixed block 14 and the piston 10 upward. The limit block 27 drives the sealing column 26 to move toward the inner side of the sealing ring 25 under the push of the fixed block 14. The sealing head 32 is pushed by the transmission fluid 30 and compresses the spring three 31. At this time, the piston 10 can move upward rapidly, generating a high-pressure airflow in the inner cavity of the sealing tube 9 to assist the airbag 6 to expand. The above design uses the inertia of the slider 20 to automatically identify whether the column 1 is in high-speed movement and tilting state, thereby making the inflation operation of the entire airbag 6 fully automated.

[0020] The fixing block 14 is truncated in shape, and the number of the placement cavity 24, the sealing column 26 and the limit block 27 are all four groups. The four groups of limit blocks 27 form a closed circular structure and limit the fixing block 14 downward. The shape of the fixed block 14 is a truncated cone, and the size difference between the small upper end and the large lower end is just adapted to the abutment of the multiple groups of limit blocks 27. When the sealing column 26 cannot move toward the inner side of the sealing ring 25, the closed circular ring structure formed by the four groups of limit blocks 27 just limits the fixed block 14 downward, so that the fixed block 14 cannot move upward under the elastic force of the spring 12.

[0021] The clamping plate 29 divides the inner cavity of the placement chamber 24 into a liquid storage area and a buffer area. The liquid storage area is located at one end inside the clamping plate 29 and the sealing column 26. The transmission fluid 30 is located in the liquid storage area. The spring 31 and the sealing head 32 are both located in the buffer area. The two ends of the spring 31 are elastically connected to the placement chamber 24 and the sealing head 32 respectively. The sealing head 32 abuts against the clamping plate 29. The internal cavity of the placement chamber 24 of the present device is divided into a liquid storage area and a buffer area. The purpose is as follows: when the clamping plate 29 is sealingly engaged with the placement chamber 24, the liquid storage area and the buffer area are sealed and isolated. Even if the spring 12 pushes the telescopic column 13 and the fixed block 14 upward and transmits pressure to the limit block 27, the limit block 27 pushes the sealing column 26 toward the inside of the placement chamber 24. At this time, the transmission fluid 30 fills the entire liquid storage area. When it cannot enter the buffer area, due to the incompressible nature of the transmission fluid 30, the limit block 27 does not move, just limiting the fixed block 14 and offsetting the elastic force of the spring 12. When the slider 20 pushes the slip ring 17, the connecting ring 22 and the clamping plate 29 upward, the liquid storage area and the buffer area are connected, and the transmission fluid 30 can flow into the buffer area, pushing the sealing head 32 and compressing the spring 3 31. At this time, the fluidity of the transmission fluid 30 cannot provide a contact and limit effect of the limit block 27 on the fixed block 14, thus releasing the limiting effect of the limit block 27 on the fixed block 14.

[0022] The cross-section of the card plate 29 is U-shaped, the bottom of the card plate 29 is adapted to abut against the bottom of the placement cavity 24, and the top of the card plate 29 protrudes from the top of the placement ring 23; The bottom of the clamping plate 29 just fits against the bottom of the placement cavity 24, thereby forming a seal under high pressure. The incompressibility of the transmission fluid 30 cooperates with the sealing column 26 and the limit block 27 to rigidly limit the fixing block 14.

[0023] The top of the support ring 18 is fixedly connected to a plurality of limit bars 19. The number of sliders 20 is the same as the limit bars 19. The bottom of the sliders 20 is provided with a slide groove 21. The limit bars 19 are slidably installed in the slide groove 21. The sliders 20 can move horizontally toward the center of the support ring 18 under the limit of the limit bars 19. The support ring 18 is used to slide and support the slider 20. The slider 20 has multiple directions and covers the entire periphery of the slip ring 17. No matter which direction the column 1 tilts, there will be a group of sliders 20 that can move in the corresponding direction.

[0024] The connecting ring 22 is fixedly connected to the bottom of the slip ring 17 and is located between the placement ring 23 and the support ring 18; The connecting ring 22 needs to move upward along with the slip ring 17 , so a certain distance needs to be left between it and the stationary supporting ring 18 .

[0025] The outer surface of the slider 20 is adapted to abut against the inner wall of the column 1 , and the slider 20 is made of solid cast iron material; The slider 20 abuts against the inclined surface of the outer surface of the slip ring 17, so that the movement of the slider 20 along the radial line of the slip ring 17 can be converted into the movement of the slip ring 17 along its own axis. The solid cast iron slider 20 has high quality, which means that its inertia is also large, which helps to improve the sensitivity of triggering the protection function.

[0026] The diameter of the bottom end of the fixed block 14 is smaller than the inner diameter of the slip ring 17 . The upper portion of the outer surface of the slip ring 17 is provided with an inclined surface, which is adapted to abut against the top of the slider 20 . The fixed block 14 needs to move through the slip ring 17. In order to prevent the two from getting stuck during relative movement, the size difference design needs to be considered.

[0027] Working principle: First, the device is installed inside by installing embedded parts at the bottom. When a vehicle loses control and hits the street lamp at high speed, the main body of the column 1 begins to separate from the embedded parts underground, and the whole column falls over, with the photovoltaic panel 5 facing the side where the fall occurs. Then, the column 1 falls down rapidly due to the strong impact, so that the slider 20 located in the column 1 moves horizontally toward the center of the piston 10 under the action of inertia. Figure 2 、 Figure 3 As shown, assume that a vehicle hits the pillar 1 from the right side, causing the pillar 1 to tilt to the left as a whole. At this time, in the pillar 1, the slider 20 located on the far left will have a rightward relative movement trend relative to the slip ring 17 and the support ring 18. The direction of this relative movement trend is rightward along the radial line of the support ring 18. Then, in the reference system between the placement ring 23 and the fixed ring 15 in the inner cavity of the column 1, the slider 20 on the left side continues to move to the right, so that the inclined surface of the top of the slider 20 is adapted to abut against the inclined surface of the outer surface of the slip ring 17. Under the action of the slider 20, the slip ring 17 moves upward relative to the support ring 18 and compresses the spring 2 16. At the same time, it drives the card plate 29 to move upward. When the gap between the card plate 29 and the inner wall of the placement cavity 24 gradually increases and the transmission fluid 30 can enter the buffer zone, the sealing head 32 abuts against the transmission fluid 30. At this time, the telescopic column 13 and the fixed Under the elastic force of spring 12, block 14 pushes the limit block 27 upward, so that the limit block 27 drives the sealing column 26 to push the transmission fluid 30 located in the liquid storage area, so that the transmission fluid 30 enters the buffer zone and pushes the sealing head 32, compressing spring three 31. At this time, the limit block 27 loses its horizontal limiting function on the fixed block 14, and the fixed block 14 drives the piston 10 to move upward continuously, and generates air pressure through the space inside the sealing tube 9, and fills the air bag 6 through the air column 7 and the connecting pipe 8, so that the air bag 6 is quickly filled and wrapped around the outside of the photovoltaic panel 5, forming protection for the photovoltaic panel 5.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor solar street light, comprising a column (1), a lamp body (2) and a top plate (3), wherein a bracket (4) is mounted on the top of the top plate (3), a photovoltaic panel (5) is mounted on the top of the bracket (4), the column (1) is hollow inside, and an air column (7) connected to the column (1) is fixedly mounted on the top of the top plate (3), characterized in that: The outer side of the photovoltaic panel (5) is fixedly connected to an air bag (6), a connecting pipe (8) is installed between the air column (7) and the air bag (6), a sealing cylinder (9) is installed at the bottom of the top plate (3), the inner sealing sleeve of the sealing cylinder (9) is provided with a piston (10), a fixing cylinder (11) is installed at the bottom of the inner wall of the column (1), and a spring (12) and a telescopic column (13) are movably sleeved in sequence from bottom to top inside the fixing cylinder (11), and the spring (12) (12) and the telescopic column (13) are movably sleeved in sequence inside the fixing cylinder (11), and the spring (12) (12) is provided with a sealing sleeve (10) inside the fixing cylinder (11). ) are elastically connected to the telescopic column (13) and the fixed cylinder (11) at both ends, the top of the telescopic column (13) is fixedly connected to a fixed block (14), the inner wall of the column (1) is fixedly installed with a placement ring (23) located above the fixed cylinder (11), a support ring (18) and a fixed ring (15) in sequence from bottom to top, the placement ring (23) has a plurality of placement cavities (24) formed inside, and the inner ring surface of the placement ring (23) is provided with a sealing ring (23) connected to the placement cavity (24). 5), the inner sealing sleeve of the sealing ring (25) is provided with a sealing column (26), the outer end of the sealing column (26) is fixedly connected to a limit block (27), a plurality of groups of limit blocks (27) are equidistantly adapted to abut against the outer surface of the fixed block (14), a plurality of groups of card slots (28) communicating with the placement cavity (24) are provided on the top of the placement ring (23), a card plate (29) is sealed and clamped inside the card slots (28), the inner cavity of the placement cavity (24) is filled with transmission fluid (30), and is sealed The sleeve is provided with a spring three (31) and a sealing head (32) located at one end of the clamping plate (29); the bottom of the fixing ring (15) is elastically connected to the spring two (16); the bottom end of the spring two (16) is elastically connected to the slip ring (17) and the connecting ring (22); the bottom of the connecting ring (22) is fixedly connected to the clamping plate (29); a plurality of sets of sliding blocks (20) are slidably mounted on the top of the supporting ring (18); the sliding blocks (20) and the outer surfaces of the sliding ring (17) are mutually adapted and abutted.

2. The outdoor solar street light according to claim 1, characterized in that: The fixing block (14) is in the shape of a truncated cone. The number of the placement cavity (24), the sealing column (26) and the limiting block (27) is four groups. The four groups of limiting blocks (27) form a closed circular ring structure and limit the fixing block (14) downward.

3. The outdoor solar street light according to claim 2, characterized in that: The clamping plate (29) divides the inner cavity of the placement cavity (24) into a liquid storage area and a buffer area. The liquid storage area is located at one end of the inner side of the clamping plate (29) and the sealing column (26). The transmission fluid (30) is located in the liquid storage area. The spring three (31) and the sealing head (32) are both located in the buffer area. The two ends of the spring three (31) are elastically connected to the placement cavity (24) and the sealing head (32), respectively. The sealing head (32) abuts against the clamping plate (29).

4. The outdoor solar street light according to claim 3, characterized in that: The cross-sectional shape of the clamping plate (29) is "U"-shaped, the bottom of the clamping plate (29) is adapted to abut against the bottom of the placement cavity (24), and the top of the clamping plate (29) protrudes from the top of the placement ring (23).

5. The outdoor solar street light according to claim 4, characterized in that: A plurality of groups of limit bars (19) are fixedly connected to the top of the support ring (18); the number of the sliders (20) is the same as the limit bars (19); a slide groove (21) is provided at the bottom of the slider (20); the limit bars (19) are slidably installed in the slide groove (21); and the slider (20) can move horizontally toward the center of the support ring (18) under the limitation of the limit bars (19).

6. The outdoor solar street light according to claim 5, characterized in that: The connecting ring (22) is fixedly connected to the bottom of the slip ring (17), and the connecting ring (22) is located between the placement ring (23) and the support ring (18).

7. The outdoor solar street light according to claim 6, characterized in that: The outer surface of the sliding block (20) is adapted to abut against the inner wall of the column (1), and the sliding block (20) is made of solid cast iron material.

8. The outdoor solar street light according to claim 7, characterized in that: The diameter of the bottom end of the fixed block (14) is smaller than the inner diameter of the slip ring (17); an inclined surface is provided on the upper portion of the outer surface of the slip ring (17) and is adapted to abut against the top of the sliding block (20).

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