Waterproof street lamp shade

Abstract

The invention relates to a waterproof street lamp cover, and belongs to the field of street lamp covers, the waterproof street lamp cover comprises a first cover body, a lifting plate is arranged in the first cover body, the lifting plate is provided with a movable opening for a bulb to penetrate through, a driving assembly for controlling the lifting plate to ascend and descend is arranged in the first cover body, and the lifting plate is provided with a sealing assembly for sealing the movable opening; the driving assembly drives the lifting plate to extend out of the first cover body and enables the movable opening to be separated from the bulb, after the movable opening is separated from the bulb, the driving assembly drives the lifting plate to continue to descend and drives the sealing assembly to seal the movable opening, and a light source of a light-emitting part of the bulb can penetrate through the sealing assembly. Under normal conditions, a light-emitting part of the bulb penetrates through the movable opening and extends out of the first cover body; under the condition of rainfall, the lifting plate is located below the light-emitting part of the bulb, and the bulb is located in a closed space defined by the closed assembly, the lifting plate and the first cover body. The semi-closed lampshade has the effect of protecting the bulb in the semi-closed lampshade in extreme weather.

Description

Technical Field

[0001] The present application relates to the technical field of street lamp shades, and in particular to a waterproof street lamp shade. Background Art

[0002] The street lamp shade is a protective device used to cover the street lamp light source. Its main functions include: protecting the light source, light control and reducing glare, etc. There are many types of street lamps. One type of street lamp has a bulb or LED lamp that is completely enclosed and installed in the lamp housing, and another type of street lamp has a bulb that extends out of a semi-enclosed frustum or hemispherical lampshade. The second type of street lamp shade structure design is conducive to evenly scattering light downward, covering a larger ground area, reducing light waste and light pollution, and effectively reducing glare, improving lighting effects and road safety. However, its waterproof performance is poor, especially in heavy rain weather, when rainwater easily splashes on the bulb, which can easily cause damage to the street lamp. Summary of the invention

[0003] In order to protect the light bulb in the semi-enclosed lampshade in extreme weather, the present application provides a waterproof street lamp shade.

[0004] The present application provides a waterproof street lamp shade adopting the following technical solution: A waterproof street lamp shade, comprising a first cover body, a lifting plate is arranged in the first cover body, a movable opening for a light bulb to pass through is opened on the lifting plate, a driving component for controlling the lifting and lowering of the lifting plate is arranged in the first cover body, the lifting plate is provided with a closing component for closing the movable opening, the driving component drives the lifting plate to extend out of the first cover body and separate the movable opening from the light bulb, after the movable opening is separated from the light bulb, the driving component drives the lifting plate to continue to descend and drives the closing component to close the movable opening, and the light source of the light emitting part of the light bulb can pass through the closing component; Under normal circumstances, the light-emitting part of the bulb passes through the movable opening and extends out of the first cover body; In the case of rainfall, the lifting plate is located below the light-emitting portion of the bulb, and the bulb is located in a closed space surrounded by the sealing component, the lifting plate and the first cover body.

[0005] By adopting the above technical solution, during normal use, the lifting plate is located in the first cover body, and the light-emitting part of the bulb extends out of the first cover body for normal lighting. When encountering heavy rainfall weather, the driving component drives the lifting plate to descend. After the lifting plate descends to below the light-emitting part of the bulb, the lifting plate continues to descend, and at this time the driving component drives the closing component to close the movable opening, so that the entire bulb is located in the closed space surrounded by the closing component, the lifting plate and the first cover body, thereby achieving a protective effect on the bulb in the semi-enclosed lampshade in extreme weather, reducing the situation where rain splashes on the bulb and causes damage to the street lamp.

[0006] Optionally, the closing assembly includes an annular rotating sleeve, which is sleeved on the lifting plate and rotatably connected to the lifting plate, and a plurality of sealing plates are hinged on the lifting plate, and the plurality of sealing plates are arranged on the side of the lifting plate facing away from the driving assembly, and the plurality of sealing plates are equidistantly distributed along the circumference of the lifting plate, each sealing plate is provided with a first arcuate side surface and a second arcuate side surface, and the first arcuate side surface of each sealing plate is affixed to the second arcuate side surface of its adjacent sealing plate, and the plurality of sealing plates are affixed to each other to jointly close the movable opening, and a plurality of sliding grooves are provided on the annular rotating sleeve, each sliding groove corresponds to the sealing plate one by one, and the plurality of sliding grooves are tangent to a circle together, which is a concentric circle of the sealing plate, and the sealing plate is provided with a guide column, and the guide column is located in the sliding groove and adapted to the sliding groove.

[0007] By adopting the above technical solution, the driving component drives the lifting plate to descend. When the lifting plate descends to below the light-emitting part of the bulb, the lifting plate continues to descend, and at this time the driving component drives the annular rotating sleeve to rotate, and the slide groove pushes the guide column to move, so that the sealing plate can rotate, and several sealing plates approach each other until the first arc-shaped side surface of each sealing plate is fitted with the second arc-shaped side surface of its adjacent sealing plate, and the sealing plate completes the closing of the movable opening.

[0008] Optionally, the driving assembly includes a screw and a motor, the screw passes through the lifting plate and extends out of the first cover body, the motor is installed in the first cover body and connected to the screw, a guide groove is provided on the inner wall of the first cover body, the guide groove includes a vertical groove section and a spiral groove section, the vertical groove section is connected to the spiral groove section, the vertical groove section is connected to the spiral groove section, the spiral groove section is closer to the opening of the first cover body than the vertical groove section, and a guide block is provided on the circumferential surface of the annular rotating sleeve, and the guide block is located in the guide groove.

[0009] By adopting the above technical solution, the motor drives the lead screw to rotate, the lifting plate moves downward, and the guide block first slides in the vertical groove section to guide the lifting plate and the annular rotating sleeve, so that the annular rotating sleeve can descend vertically. When the movable port is separated from the light-emitting part of the bulb, the guide block just enters the spiral groove section. When the lifting plate drives the annular rotating sleeve to continue to descend, the guide block moves along the spiral groove, thereby causing the annular rotating sleeve to rotate, and then the movable port is separated from the light-emitting part of the bulb, and the sealing plate closes the movable port.

[0010] Optionally, a guide rod is provided in the first cover body, the guide rod passes through the lifting plate, the guide rod is parallel to the lead screw, the guide rod and the lead screw are symmetrically arranged about the central axis of the annular rotating sleeve, two guide grooves are provided, the two guide grooves are symmetrically arranged about the central axis of the annular rotating sleeve, the number of the guide blocks is two, and the guide blocks correspond to the guide grooves one by one.

[0011] By adopting the above technical solution, the arrangement of the guide rod and the two vertical groove sections can make the lifting plate and the rotating ring plate lift more stably, and the arrangement of the two spiral groove sections can make the rotating ring plate rotate more stably.

[0012] Optionally, an expansion water stop block is fixed by bolts inside one end of the spiral groove section away from the vertical groove section.

[0013] By adopting the above technical solution, the waterproof effect is improved and the flow of rainwater into the first cover through the gap between the spiral groove section and the guide groove is reduced.

[0014] Optionally, both the first arc-shaped side surface and the second arc-shaped side surface are provided with elastic water-stopping pads, adjacent elastic water-stopping pads fit together, and the elastic water-stopping pads and the sealing plate cooperate to close the movable opening.

[0015] By adopting the above technical solution, the elastic water-stop pad reduces the situation where water flows into the first cover body from the joints between adjacent sealing plates, thereby further improving the waterproof effect.

[0016] Optionally, the first cover body is threadedly connected to the lamp holder, a water-stopping washer is sleeved on the lamp holder, a clamping nut is threadedly connected to the lamp holder, the clamping nut presses against the water-stopping washer, and the water-stopping washer presses against the first cover body.

[0017] By adopting the above technical solution, a clamping nut is first connected to the lamp holder threadedly, and then a water-stop gasket is put on. Then, the first cover body is threadedly connected to the lamp holder, and then the connecting clamping nut is rotated so that the clamping nut drives the water-stop gasket to press against the first cover body, thereby improving the waterproof effect of the first cover body and reducing the flow of water into the first cover body through the gap between the first cover body and the lamp holder.

[0018] Optionally, it further includes a second cover body, the first cover body is located in the second cover body, the first cover body is fixed to the second cover body, the second cover body and the first cover body are coaxially arranged, the second cover body is a truncated cone shape, and the second cover body covers the light-emitting part of the bulb.

[0019] By adopting the above technical solution, the second cover can provide basic rain protection for the light-emitting part of the bulb, so that when the precipitation is small, there is no need to seal the bulb with a sealing plate, so that the bulb can provide good lighting.

[0020] Optionally, a fan is provided in the second cover body, the fan is connected to a ventilation pipe, the ventilation pipe is spirally arranged around the first cover body, a plurality of air nozzles are provided on the ventilation pipe, a plurality of the air nozzles are facing the inner wall of the second cover body, and the air nozzles are inclined downward.

[0021] By adopting the above technical solution, the fan blows air into the ventilation pipe, and the air nozzle blows air toward the inner wall of the second cover body, so that the dust in the second cover body is blown off, which facilitates regular automatic cleaning of the inner wall of the second cover body.

[0022] Optionally, the sealing plate is an optical concave lens, a second motor is provided at the bottom of the first cover body, the second motor is connected to a wiping plate, and when the sealing plate completely closes the movable opening, the wiping plate can contact a side of the sealing plate facing away from the light bulb.

[0023] By adopting the above technical solution, the concave lens can be used to scatter light to a larger area, thereby increasing the lighting range and uniformity, and providing good lighting for the road even in heavy rain. When the cover plate is stained, the second motor controls the wiping plate to rotate, and the wiping plate wipes the concave lens, so that the light source can pass through the cover plate normally.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. In normal use, the lifting plate is located in the first cover body, and the light-emitting part of the bulb extends out of the first cover body for normal lighting. When encountering heavy rainfall weather, the driving component drives the lifting plate to descend. After the lifting plate descends to the bottom of the light-emitting part of the bulb, the lifting plate continues to descend, and at this time, the driving component drives the closing component to close the movable opening, so that the entire bulb is located in the closed space surrounded by the closing component, the lifting plate and the first cover body, thereby achieving a protective effect on the bulb in the semi-enclosed lampshade in extreme weather, reducing the situation where rain splashes on the bulb and causes damage to the street lamp; 2. The second cover can provide a basic rain shield for the light-emitting part of the bulb, so that when the precipitation is small, there is no need to seal the bulb with a sealing plate, so that the bulb can provide good lighting; 3. Concave lenses can be used to scatter light to a larger area, thereby increasing the lighting range and uniformity, and providing good lighting for the road even in heavy rainfall. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the first cover body and the driving assembly according to an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the embodiment of the present application for reflecting the closing component and the wiping plate.

[0028] Figure 4 It is a schematic diagram of the structure of the guide groove and the expansion water stop block used in the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the annular rotating sleeve and the sealing plate used in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. first cover body; 11. locking nut; 12. water-stopping gasket; 13. guide groove; 131. vertical groove section; 132. spiral groove section; 14. expansion water-stopping block; 15. second motor; 16. wiping plate; 2. second cover body; 3. fan; 4. ventilation pipe; 51. air nozzle; 6. light bulb; 7. driving assembly; 71. lead screw; 72. first motor; 73. guide rod; 8. lifting plate; 81. movable opening; 9. closing assembly; 91. annular swivel sleeve; 92. sealing plate; 921. triangular plate; 9211. first arc-shaped side surface; 9212. second arc-shaped side surface; 9213. arc-shaped bottom surface; 922. straight rod; 923. elastic water-stopping pad; 93. guide block; 94. slide groove; 95. guide column. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a waterproof street lamp cover.

[0033] like Figure 1 , Figure 2 and Figure 3The waterproof street lamp shade comprises a first cover body 1, the first cover body 1 is threadedly connected to the lamp holder, the lamp holder is threadedly connected with a clamping nut 11, the lamp holder is provided with a water stop washer 12, the clamping nut 11 is tightly pressed against the water stop washer 12, and the water stop washer 12 is tightly pressed against the top surface of the first cover body 1. The first cover body 1 is cylindrical, the first cover body 1 is covered with a second cover body 2, the second cover body 2 is fixed to the circumference of the first cover body 1, the second cover body 2 is a truncated cone, and the second cover body 2 completely covers the first cover body 1. After the lamp shade is installed, the bottom elevation of the first cover body 1 is higher than the bottom elevation of the second cover body 2. A fan 3 is installed on the outer peripheral surface of the first cover body 1, and the fan 3 is connected to a ventilation pipe 4. The ventilation pipe 4 is a spiral tube 5, and the ventilation pipe 4 is spirally arranged around the first cover body 1. A plurality of air nozzles 51 are arranged on the side of the ventilation pipe 4 facing the inner wall of the second cover body 2. The air nozzles 51 are equidistantly arranged along the spiral direction of the ventilation pipe 4, and the air nozzles 51 are arranged tilted downward.

[0034] The lamp cap is threadedly connected with a bulb 6, which is located in the first cover body 1. The light-emitting part of the bulb 6 extends out of the first cover body 1. After the lampshade is installed, the bottom elevation of the bulb 6 is lower than the bottom elevation of the second cover body 2. A driving assembly 7 is arranged in the first cover body 1, and the driving assembly 7 is connected to a lifting plate 8. The lifting plate 8 is disc-shaped, and a movable opening 81 is opened at the center of the lifting plate 8. The movable opening 81 is a circular opening. The lifting plate 8 is coaxially arranged with the lamp cap, and the movable opening 81 is used for the bulb 6 to pass through the lifting plate 8. A closing assembly 9 is arranged on the lifting plate 8, and the closing assembly 9 is used to close the movable opening 81. The light source of the bulb 6 can pass through the closing assembly 9; In the case of no rain or light rain, the light bulb 6 passes through the movable opening 81 and extends out of the first cover body 1 for normal lighting; In the case of heavy rainfall, the driving component 7 controls the lifting plate 8 to descend, so that the lifting plate 8 extends from the bottom of the first cover body 1 and separates the movable opening 81 from the bulb 6. After the movable opening 81 is separated from the bulb 6, the driving component 7 drives the lifting plate 8 to continue to descend and controls the closing component 9 to close the movable opening 81.

[0035] During normal use, the lifting plate 8 is located in the first cover body 1, and the light-emitting portion of the bulb 6 extends out of the first cover body 1 for normal lighting.

[0036] In the case of small rainfall, the second cover body 2 can provide basic rain protection for the light-emitting part of the bulb 6.

[0037] When encountering heavy rainfall, the driving component 7 drives the lifting plate 8 to descend. After the lifting plate 8 descends to below the light-emitting part of the bulb 6, the lifting plate 8 continues to descend, and at this time the driving component 7 drives the closing component 9 to close the movable opening 81, so that the bulb 6 is located as a whole in the closed space surrounded by the closing component 9, the lifting plate 8 and the first cover body 1, thereby achieving a protection effect on the bulb 6 in the semi-enclosed lampshade in extreme weather, and the light source of the bulb 6 can achieve normal lighting through the closing component 9, reducing the situation where rain splashes on the bulb 6 and causes damage to the street lamp.

[0038] like Figure 3 , Figure 4 and Figure 5 The sealing component 9 includes an annular rotating sleeve 91, the lifting plate 8 is sleeved in the annular rotating sleeve 91 and is rotatably connected to the annular rotating sleeve 91, the bottom surface of the annular rotating sleeve 91 is flush with the bottom surface of the lifting plate 8, and the lifting plate 8 is rotatably connected with five sealing plates 92, the sealing plate 92 is an optical concave lens, the sealing plate 92 includes a triangular plate 921 and a straight rod 922, the two side surfaces of the triangular plate 921 are a first arcuate side surface 9211 and a second arcuate side surface 9212, the bottom surface of the triangular plate 921 is an arcuate bottom surface 9213, the straight rod 922 is connected to the connection between the arcuate bottom surface 9213 and the first arcuate side surface 9211, and the first arcuate side surface 9211 and the second arcuate side surface 9212 of the triangular plate 921 are both provided with elastic water-stopping pads 923; When the sealing plate 92 closes the movable opening 81, the elastic water stop pad 923 of the first arcuate side 9211 of the triangular plate 921 fits with the elastic water stop pad 923 of the second arcuate side 9212 of the adjacent triangular plate 921, and the contour lines of the arcuate bottom surfaces 9213 of the five sealing plates 92 are cocircular with a concentric circle of the movable opening 81. Five slide grooves 94 are provided at the bottom of the annular rotating sleeve 91, and the five slide grooves 94 correspond to five straight rods 922 one by one. Each straight rod 922 is connected to a guide column 95, which extends into the slide groove 94 for matching, and the five slide grooves 94 are tangent to a concentric circle of the movable opening 81 along their longitudinal central axis.

[0039] like Figure 2 , Figure 4 and Figure 5The driving assembly 7 includes a lead screw 71 and a first motor 72. The first motor 72 is installed in the first housing 1. The first motor 72 is connected to the lead screw 71. A guide rod 73 is installed in the first housing 1. The lead screw 71 and the guide rod 73 both pass through the lifting plate 8. The lead screw 71 is threadedly connected to the lifting plate 8. The lead screw 71 and the guide rod 73 are parallel to each other and symmetrical about the central axis of the lifting plate 8. After installation, the bottom elevations of the guide rod 73 and the lead screw 71 are lower than the bottom elevation of the light-emitting part of the bulb 6. Two guide grooves 13 are provided on the inner side wall of the first housing 1. The two guide grooves 13 are symmetrically arranged about the central axis of the first housing 1. The guide grooves 13 include a vertical groove section 131 and a spiral groove section 132. The vertical groove section 131 is connected to the spiral groove section 132. Compared with the vertical groove section 131, the spiral groove section 132 is closer to the opening of the first housing 1. An expansion water stop block 14 is fixed in one end of the spiral groove section 132 away from the vertical groove section 131. Two guide blocks 93 are arranged on the circumference of the annular rotating sleeve 91 . The two guide blocks 93 are symmetrically arranged about the central axis of the annular rotating sleeve 91 . The guide blocks 93 are slidably arranged in the guide grooves 13 on the same side thereof.

[0040] like Figure 3 Two second motors 15 are arranged at the bottom of the first cover body 1, and the two second motors 15 are symmetrically arranged about the central axis of the first cover body 1. The two second motors 15 are both connected with a wiping plate 16. When the sealing plate 92 completely closes the movable opening 81, the wiping plate 16 can contact the side of the sealing plate 92 away from the bulb 6.

[0041] The motor drives the lead screw 71 to rotate, and the lifting plate 8 moves downward. The guide block 93 first slides in the vertical groove section 131, guiding the lifting plate 8 and the annular rotating sleeve 91, so that the annular rotating sleeve 91 can descend vertically. When the movable opening 81 is disengaged from the light-emitting part of the bulb 6, the guide block 93 just enters the spiral groove section 132. When the lifting plate 8 drives the annular rotating sleeve 91 to continue to descend, the guide block 93 moves along the spiral groove section 132, thereby rotating the annular rotating sleeve 91, and the slide groove 94 pushes the guide column 95 to move, thereby rotating the sealing plate 92. Several sealing plates 92 approach each other until the elastic water-stop pad 923 of the first arc-shaped side 9211 of each sealing plate 92 is tightly attached to the elastic water-stop pad 923 of the second arc-shaped side 9212 of the adjacent sealing plate 92, and the sealing plate 92 completes closing the movable opening 81.

[0042] The elastic water-stop pad 923 reduces the water flowing into the first cover body 1 from the joints between adjacent sealing plates 92, and the expansion water-stop block 14 reduces the rainwater flowing into the first cover body 1 through the gap between the spiral groove section 132 and the guide block 93, thereby improving the overall waterproof effect of the lampshade.

[0043] The concave lens can be used to scatter light to a larger area, thereby increasing the illumination range and uniformity, and providing good illumination for the road surface even in heavy rain. When the sealing plate 92 is stained, the second motor 15 controls the wiping plate 16 to rotate, and the wiping plate 16 wipes the concave lens so that the light source can pass through the sealing plate 92 normally.

[0044] The implementation principle of the embodiment of the present application is as follows: in normal use, the lifting plate 8 is located in the first cover body 1, and the light-emitting part of the bulb 6 extends out of the first cover body 1 for normal lighting. When encountering heavy rainfall, the driving component 7 drives the lifting plate 8 to descend. After the lifting plate 8 descends to below the light-emitting part of the bulb 6, the lifting plate 8 continues to descend, and at this time the driving component 7 drives the closing component 9 to close the movable opening 81, so that the bulb 6 is located as a whole in the closed space surrounded by the closing component 9, the lifting plate 8 and the first cover body 1, thereby achieving a protection effect on the bulb 6 in the semi-enclosed lampshade in extreme weather, and reducing the situation where rain splashes on the bulb 6 and causes damage to the street lamp.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waterproof street lamp shade, characterized by: The invention comprises a first cover body (1), wherein a lifting plate (8) is arranged inside the first cover body (1), wherein the lifting plate (8) is provided with a movable opening (81) for allowing a light bulb (6) to pass through, wherein a driving component (7) is arranged inside the first cover body (1) for controlling the lifting and lowering of the lifting plate (8), wherein the lifting plate (8) is provided with a sealing component (9) for sealing the movable opening (81), wherein the driving component (7) drives the lifting plate (8) to extend out of the first cover body (1) and separate the movable opening (81) from the light bulb (6), and after the movable opening (81) is separated from the light bulb (6), the driving component (7) drives the lifting plate (8) to continue to descend and drives the sealing component (9) to seal the movable opening (81), and the light source of the light emitting part of the light bulb (6) can pass through the sealing component (9); Under normal circumstances, the light-emitting portion of the light bulb (6) passes through the movable opening (81) and extends out of the first cover body (1); In the case of rainfall, the lifting plate (8) is located below the light-emitting portion of the light bulb (6), and the light bulb (6) is located in a closed space surrounded by the sealing component (9), the lifting plate (8) and the first cover body (1).

2. The waterproof street lamp shade according to claim 1, characterized in that: The sealing component (9) comprises an annular rotating sleeve (91), the annular rotating sleeve (91) is sleeved on the lifting plate (8) and is rotatably connected to the lifting plate (8), a plurality of sealing plates (92) are hinged on the lifting plate (8), the plurality of sealing plates (92) are arranged on a side of the lifting plate (8) away from the driving component (7), the plurality of sealing plates (92) are equidistantly distributed along the circumference of the lifting plate (8), each of the sealing plates (92) is provided with a first arcuate side surface (9211) and a second arcuate side surface (9212), the first arcuate side surface (9211) of each of the sealing plates (92) 9211) is fitted with the second arc-shaped side surface (9212) of the adjacent sealing plate (92), and several sealing plates (92) are fitted together to close the movable opening (81). Several slide grooves (94) are provided on the annular rotating sleeve (91), and each slide groove (94) corresponds to the sealing plate (92) one by one. Several slide grooves (94) are tangent to a circle together, which is a concentric circle of the sealing plate (92). The sealing plate (92) is provided with a guide column (95), and the guide column (95) is located in the slide groove (94) and is adapted to the slide groove (94).

3. The waterproof street lamp shade according to claim 2, characterized in that: The driving assembly (7) comprises a lead screw (71) and a first motor (72), wherein the lead screw (71) passes through the lifting plate (8) and extends out of the first cover body (1), the first motor (72) is installed in the first cover body (1) and is connected to the lead screw (71), a guide groove (13) is provided on the inner wall of the first cover body (1), the guide groove (13) comprises a vertical groove section (131) and a spiral groove section (132), the vertical groove section (131) is connected to the spiral groove section (132), the vertical groove section (131) is connected to the spiral groove section (132), the spiral groove section (132) is closer to the opening of the first cover body (1) than the vertical groove section (131), and a guide block (93) is provided on the circumferential surface of the annular rotating sleeve (91), and the guide block (93) is located in the guide groove (13).

4. The waterproof street lamp shade according to claim 3, characterized in that: A guide rod (73) is arranged in the first cover body (1), the guide rod (73) passes through the lifting plate (8), the guide rod (73) is parallel to the lead screw (71), the guide rod (73) and the lead screw (71) are symmetrically arranged about the central axis of the annular rotating sleeve (91), two guide grooves (13) are provided, the two guide grooves (13) are symmetrically arranged about the central axis of the annular rotating sleeve (91), the number of the guide blocks (93) is two, and the guide blocks (93) correspond to the guide grooves (13) one by one.

5. The waterproof street lamp shade according to claim 3, characterized in that: An expansion water stop block (14) is fixed by bolts inside one end of the spiral groove section (132) away from the vertical groove section (131).

6. The waterproof street lamp shade according to claim 2, characterized in that: The first arc-shaped side surface (9211) and the second arc-shaped side surface (9212) are both provided with elastic water-stopping pads (923), and adjacent elastic water-stopping pads (923) are fitted together. The elastic water-stopping pads (923) and the sealing plate (92) cooperate to close the movable opening (81).

7. The waterproof street lamp shade according to claim 1, characterized in that: The first cover body (1) is threadedly connected to the lamp holder, a water stop washer (12) is sleeved on the lamp holder, a clamping nut (11) is threadedly connected to the lamp holder, the clamping nut (11) is pressed against the water stop washer (12), and the water stop washer (12) is pressed against the first cover body (1).

8. The waterproof street lamp shade according to claim 1, characterized in that: It also comprises a second cover body (2), wherein the first cover body (1) is located inside the second cover body (2), the first cover body (1) is fixed to the second cover body (2), the second cover body (2) and the first cover body (1) are coaxially arranged, the second cover body (2) is a truncated cone shape, and the second cover body (2) covers the light-emitting part of the bulb (6).

9. The waterproof street lamp shade according to claim 8, characterized in that: A fan (3) is arranged inside the second cover body (2), the fan (3) is connected to a ventilation pipe (4), the ventilation pipe (4) is arranged in a spiral around the first cover body (1), and a plurality of air nozzles (51) are arranged on the ventilation pipe (4), the plurality of air nozzles (51) are facing the inner wall of the second cover body (2), and the air nozzles (51) are arranged obliquely downward.

10. The waterproof street lamp shade according to claim 2, characterized in that: The sealing plate (92) is an optical concave lens. A second motor (15) is provided at the bottom of the first cover body (1). The second motor (15) is connected to a wiping plate (16). When the sealing plate (92) completely closes the movable opening (81), the wiping plate (16) can contact a side of the sealing plate (92) facing away from the light bulb (6).

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