A multi-level infrared heat dissipation street lamp shade

Abstract

The invention discloses a multi-stage infrared heat dissipation street lamp shade, which relates to the technical field of lighting devices. The purpose is to provide a multi-stage infrared heat dissipation street lamp shade that can be opened to utilize external air convection to fully dissipate heat for the lamp. The technical key points include a fixed shell, a connecting arm is provided at the rear end of the fixed shell, a wiring harness hole that penetrates into the fixed shell is provided in the connecting arm, a lamp board placement opening is provided under the fixed shell, the top of the fixed shell is opened, and a movable shell is provided above, a fixed plate is provided in the fixed shell, and an opening and closing mechanism and a main shaft are provided on the fixed plate. The technical effect is that by arranging the opening and closing mechanism and the card slot, the opening and closing mechanism can utilize the drive of an incomplete gear to move the movable shell upward to open, so that the lamp in the fixed shell contacts with the external air, and the flow of air is utilized to dissipate the heat of the lamp, while preventing the heat of the lamp from accumulating in the fixed shell.

Description

Technical Field

[0001] The invention relates to the technical field of lighting devices, in particular to a multi-stage infrared heat dissipation street lamp shade. Background Art

[0002] Street lights are used for lighting at night or on roads such as tunnels and bridge holes with poor lighting. They are auxiliary equipment to ensure the safety of pedestrians and vehicles. Street light shades are used to place light panels and corresponding circuit equipment. In order to ensure the lighting effect, the power of commonly used street lights is relatively large, and the corresponding heat generated is also relatively large. Therefore, lamps coated with special coatings are placed on the light panels. The coating converts thermal energy into infrared radiation energy, thereby quickly dissipating the heat into the air, and then the heat is dissipated by the lampshade. Although this method completes the heat dissipation of the light panel, it will cause heat to accumulate in the lampshade. As the heat accumulates, the temperature inside the lampshade will rise, and the infrared heat dissipation efficiency of the lamp will decrease. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a multi-stage infrared heat dissipation street lamp shade which can be opened to fully dissipate heat from the lamp by means of external air convection.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-stage infrared heat dissipation street lamp shade, comprising a fixed shell, a connecting arm is provided at the rear end of the fixed shell, a wiring harness hole penetrating into the fixed shell is provided in the connecting arm, a lamp board placement opening is provided under the fixed shell, the top of the fixed shell is open, and a movable shell is provided above, a fixed plate is provided in the fixed shell, an opening and closing mechanism and a main shaft are provided on the fixed plate, the other end of the opening and closing mechanism is connected to the movable shell and is used to drive the movable shell to move horizontally upward, an incomplete gear is provided on the side of the main shaft, the incomplete gear is meshed with the opening and closing mechanism, and a double-axis motor is provided under the main shaft;

[0005] The opening and closing mechanism includes a rotating shaft penetrating the fixed plate and a slide rail connected to the inner wall of the fixed shell, the rotating shaft is provided with a second gear, the second gear is meshed with an incomplete gear, and the number of teeth of the incomplete gear is half of the second gear, that is, the incomplete gear rotates two circles and the second gear rotates one circle, a pin is eccentrically provided on the second gear, a rack is provided on the slide rail, an opening and closing gear is meshed on the rack, the opening and closing gear is connected to the inner wall of the fixed shell, and an active opening and closing rod is provided on the side, the other end of the active opening and closing rod is connected to the inner wall of the movable shell, a third connecting rod is provided on the end face of the rack, a movable groove is provided in the third connecting rod, and the third connecting rod is connected to the pin through the movable groove;

[0006] A passive opening and closing rod is arranged on the inner wall of the movable shell at a position away from the active opening and closing rod.

[0007] Preferably, a clamping slot is provided in the movable slot of the third connecting rod, the clamping slot is located at the center of the third connecting rod and fits with the pin shaft.

[0008] Preferably, a limiting mechanism is provided at a position corresponding to the rotating shaft under the fixing plate, and the limiting mechanism can limit the rotation of the rotating shaft;

[0009] The limiting mechanism includes a groove, a ball, a sliding rod and a support block. The groove is opened on the side of the rotating shaft facing away from the pin shaft. The support block is arranged under the fixed plate. The sliding rod is arranged in the support block, and one end of the sliding rod is connected to the ball, and the other end is provided with a second spring. The other end of the second spring is connected to the support block, and the ball is clamped in the groove.

[0010] Preferably, a rain sensor is provided on the movable shell, and the rain sensor is electrically connected to the dual-axis motor.

[0011] Preferably, a filter cloth is provided between the movable shell and the fixed shell, and the filter cloth has a built-in strap, which can be retracted into the fixed shell after the movable shell and the fixed shell are closed.

[0012] Preferably, an air outlet is provided under the fixed shell at the position of the dual-axis motor, and an air inlet is provided at a position away from the air outlet. A fan is provided in the air outlet, and the fan is connected to the lower part of the dual-axis motor. A one-way transmission mechanism is provided between the main shaft and the dual-axis motor, that is, when the dual-axis motor rotates forward, the main shaft is driven to rotate through the one-way transmission mechanism, and when it rotates reversely, the main shaft is not driven to rotate.

[0013] Preferably, the one-way transmission mechanism includes a driven chuck, a driving chuck, an output shaft and a first spring, the driven chuck is arranged under the main shaft, the output shaft is arranged on the dual-axis motor, the driving chuck is vertically slidably connected to the output shaft, the first spring is connected between the output shaft and the driving chuck, and both the driven chuck and the driving chuck are provided with inclined teeth, and the two are in opposite directions.

[0014] Preferably, a baffle is provided in the air inlet, the baffle is rotated upward to open, and a coil spring is provided at the connection position between the baffle and the air inlet.

[0015] Preferably, semicircular plates are provided on both sides of the air outlet, and a third spring is connected between the semicircular plates and the air outlet.

[0016] Preferably, a fixing frame is provided in the fixed shell near the main shaft, a sliding groove is provided on the side wall of the lamp board placement opening, a cleaning mechanism is provided in the fixing frame, the cleaning mechanism is slidably connected to the sliding groove, a first gear is meshed on the side of the cleaning mechanism, and the first gear is connected to the main shaft.

[0017] Preferably, the cleaning mechanism comprises a cleaning component and a reciprocating component, the cleaning component is slidably connected to the slide slot, the reciprocating component is arranged in the fixed frame and meshes with the first gear, and pushes the cleaning component to reciprocate;

[0018] The cleaning assembly comprises a sliding plate and a brush. The sliding plate is slidably connected in the sliding groove. The brush is arranged under the sliding plate and its position corresponds to the lamp panel placement opening.

[0019] Preferably, the reciprocating assembly includes a third gear, a first connecting rod and a second connecting rod. The third gear is arranged under the fixed frame and meshes with the first gear. One end of the first connecting rod passes through the fixed frame and is connected to the third gear, and the other end is hinged to the second connecting rod. The other end of the second connecting rod is hinged to the cleaning assembly.

[0020] Compared with the prior art, the present invention provides a multi-stage infrared heat dissipation street lamp shade, which has the following beneficial effects:

[0021] 1. By setting up an opening and closing mechanism and a card slot, the opening and closing mechanism can use the incomplete gear to move the movable shell upward to open it, so that the lamp in the fixed shell is in contact with the outside air, and the heat of the lamp is dissipated by the flow of air, while avoiding the heat of the lamp from accumulating in the fixed shell. The card slot can stabilize the position of the opening and closing mechanism after it is unfolded, so that the opening and closing mechanism can be fixed by its own structural position.

[0022] 2. By setting a one-way transmission mechanism and a fan, when it is inconvenient to open the movable shell in rainy weather, the double-axis motor rotates in the opposite direction to drive the fan to discharge the hot air in the fixed shell and the movable shell, and the cold air from the outside is replenished into the fixed shell and the movable shell through the air inlet. Due to the structural characteristics of the one-way transmission mechanism, when the double-axis motor rotates in the opposite direction, it will not drive the main shaft to rotate, so the opening and closing mechanism will not open at this time. In this way, heat can be dissipated when the movable shell is inconvenient to open.

[0023] 3. By setting up a cleaning component and a reciprocating component, after the teeth of the incomplete gear are separated from the opening and closing mechanism, the incomplete gear and the main shaft will continue to rotate. At this time, the incomplete gear is not engaged with the opening and closing mechanism, so it will not drive the opening and closing mechanism to work. At this time, the main shaft drives the reciprocating component to rotate through the first gear. The reciprocating component converts the rotational power into horizontal thrust and pushes the cleaning component to move back and forth to clean the dust on the lamp, thereby avoiding dust deposition due to the lamp being exposed to the air, affecting the heat dissipation problem.

[0024] 4. By setting the first gear and the third gear, the number of teeth of the first gear is greater than that of the third gear, that is, when the first gear drives the third gear, the speed and number of revolutions of the third gear will be increased, so that the cleaning mechanism can utilize the state of the incomplete gear being disengaged from the second gear to complete more reciprocating stroke cleaning work, thereby greatly improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the cross section of the movable shell of the present invention;

[0027] Figure 3 It is a schematic diagram of a three-dimensional incomplete gear of the present invention;

[0028] Figure 4 It is a three-dimensional schematic diagram of the opening and closing mechanism of the present invention;

[0029] Figure 5 It is a three-dimensional schematic diagram of the cleaning mechanism of the present invention;

[0030] Figure 6 is a three-dimensional schematic diagram of the first gear of the present invention;

[0031] Figure 7 It is a schematic diagram of the opening and closing mechanism of the present invention when viewed from above;

[0032] Figure 8 It is a three-dimensional schematic diagram of the one-way transmission mechanism of the present invention;

[0033] Fig. 9 For the present invention Figure 7 The enlarged schematic diagram at A in the middle;

[0034] Fig.10 For the present invention Figure 8 The enlarged schematic diagram at B in the middle;

[0035] Fig.11 For the present invention Figure 8 Schematic diagram of the force direction after the middle opening and closing mechanism is unfolded;

[0036] Fig.12 For the present invention Fig.11 Enlarged schematic diagram at C in the middle.

[0037] In the figure: 1. Fixed shell; 2. Connecting arm; 3. Movable shell; 4. Air inlet; 5. Light board placement opening;

[0038] 6. Cleaning mechanism; 601. Cleaning assembly; 6011. Sliding plate; 6012. Brush; 602. Reciprocating assembly; 6021. Third gear; 6022. First connecting rod; 6023. Second connecting rod;

[0039] 7. Fan; 8. Air outlet; 9. Slide;

[0040] 10. Opening and closing mechanism; 1001. Rotating shaft; 1002. Second gear; 1003. Pin shaft; 1004. Third connecting rod; 1005. Movable groove; 1006. Slide rail; 1007. Rack; 1008. Opening and closing gear; 1009. Active opening and closing rod;

[0041] 11. Dual-axis motor;

[0042] 12. One-way transmission mechanism; 1201. Driven chuck; 1202. Active chuck; 1203. Output shaft; 1204. First spring;

[0043] 13. Fixed frame; 14. Fixed plate; 15. Incomplete gear; 16. First gear; 17. Main shaft;

[0044] 18. Limiting mechanism; 1801. Groove; 1802. Ball; 1803. Support block; 1804. Second spring; 1805. Sliding rod;

[0045] 19. Rain sensor; 20. Passive opening and closing rod; 21. Semicircular plate; 22. Third spring; 23. Coil spring; 24. Baffle; 25. Card slot. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Example

[0047] See also Figure 1-12 A multi-stage infrared heat dissipation street lamp shade, comprising a fixed shell 1, a connecting arm 2 is provided at the rear end of the fixed shell 1, a wiring harness hole penetrating into the fixed shell 1 is provided in the connecting arm 2, a lamp board placement opening 5 is provided below the fixed shell 1, the top of the fixed shell 1 is open, and a movable shell 3 is provided above, a fixed plate 14 is provided inside the fixed shell 1, an opening and closing mechanism 10 and a main shaft 17 are provided on the fixed plate 14, the other end of the opening and closing mechanism 10 is connected to the movable shell 3, and is used to drive the movable shell 3 to move horizontally upward, an incomplete gear 15 is provided on the side of the main shaft 17, the incomplete gear 15 is meshed with the opening and closing mechanism 10, and a double-axis motor 11 is provided under the main shaft 17;

[0048] The opening and closing mechanism 10 includes a rotating shaft 1001 penetrating the fixed plate 14 and a slide rail 1006 connected to the inner wall of the fixed shell 1. The rotating shaft 1001 is provided with a second gear 1002, and the second gear 1002 is meshed with the incomplete gear 15, and the number of teeth of the incomplete gear 15 is half of the second gear 1002, that is, the incomplete gear 15 rotates two circles and the second gear 1002 rotates one circle. The second gear 1002 is eccentrically provided with a pin shaft 1003, and the slide rail 100 6 is provided with a rack 1007, and an opening and closing gear 1008 is meshed on the rack 1007, and the opening and closing gear 1008 is connected to the inner wall of the fixed shell 1, and an active opening and closing rod 1009 is provided on the side, and the other end of the active opening and closing rod 1009 is connected to the inner wall of the movable shell 3, and the end surface of the rack 1007 is provided with a third connecting rod 1004, and a movable groove 1005 is opened in the third connecting rod 1004, and the third connecting rod 1004 is connected to the pin 1003 through the movable groove 1005;

[0049] By setting the pin shaft 1003 and the third connecting rod 1004, the second gear 1002 will use the eccentrically set pin shaft 1003 to push the third connecting rod 1004 to move when rotating, so that the third connecting rod 1004 drives the rack 1007 to move, and the rack 1007 drives the opening and closing gear 1008 to rotate, so as to achieve the purpose of rotating the active opening and closing rod 1009 upward, and achieve the effect of driving the movable shell 3 to open. After the movable shell 3 is opened, the axis connecting line between the pin shaft 1003 and the second gear 1002 is perpendicular to the third connecting rod 1004;

[0050] It should also be further explained that one rotation of the teeth of the incomplete gear 15 can only drive the second gear 1002 to rotate half a circle. In this way, the opening and closing mechanism 10 can work intermittently and can be reset by continuous rotation in the same direction without the need for frequent forward and reverse rotation of the dual-axis motor 11.

[0051] like Fig.11 As shown, after the opening and closing mechanism 10 is unfolded, the active opening and closing rod 1009 will be subjected to downward gravity, forcing the opening and closing gear 1008 to be subjected to a rotational force, and correspondingly causing the rack 1007 and the third connecting rod 1004 to be subjected to a backward force. At this time, the pin shaft 1003 is located at the center of the movable groove 1005, and at the same time, the axis of the pin shaft 1003 and the second gear 1002 is perpendicular to the third connecting rod 1004, so that the third connecting rod 1004 is supported by the pin shaft 1003. At this time, the opening and closing mechanism 10 is in a stagnant state, achieving the purpose of opening and fixing the movable shell 3;

[0052] A slot 25 is provided in the movable groove 1005 of the third connecting rod 1004. The slot 25 is located at the center position of the third connecting rod 1004 and the second gear 1002, and is fitted with the outer side surface of the pin 1003. By setting the slot 25, the pin 1003 can be engaged with the pin 1003 when the pin 1003 moves to the center position of the movable groove 1005, so that the pin 1003 will not move randomly without the drive of the second gear 1002, further ensuring the stability of the opening and closing component after opening. In addition, the heavier the mass of the movable shell 3, the tighter the fit between the slot 25 and the pin 1003.

[0053] A passive opening and closing rod 20 is provided on the inner wall of the movable shell 3 at a position away from the active opening and closing rod 1009. A rain sensor 19 is provided on the movable shell 3. The rain sensor 19 is electrically connected to the dual-axis motor 11.

[0054] The rain sensor 19 can sense whether it is raining in the current environment. If it senses raining, it will promptly feedback a signal so that the opening and closing mechanism 10 closes the movable shell 3 to prevent rain from corroding the components in the fixed shell 1. The structure and principle of the rain sensor 19 are prior art and will not be described in detail here.

[0055] It should be further explained that the passive opening and closing rod 20 supports the movable shell 3 so that the passive opening and closing rod 20 can rotate along with the active opening and closing rod 1009 driven by the movable shell 3, and the passive opening and closing rod 20 does not need to be driven by power.

[0056] A filter cloth is provided between the movable shell 3 and the fixed shell 1, and the filter cloth has a built-in drawstring, which can be retracted into the fixed shell 1 after the movable shell 3 and the fixed shell 1 are closed;

[0057] By setting up a filter cloth, after the movable shell 3 and the fixed shell 1 are opened, the gap between the two can be closed by the filter cloth. The filter cloth can prevent insects or birds from entering the fixed shell 1 without hindering air circulation, thereby further ensuring the safety of the lighting facilities in the fixed shell 1.

[0058] A limiting mechanism 18 is provided at the position corresponding to the rotating shaft 1001 under the fixed plate 14. The limiting mechanism 18 can limit the rotation of the rotating shaft 1001. The limiting mechanism 18 includes a groove 1801, a ball 1802, a slide rod 1805 and a support block 1803. The groove 1801 is opened on the side of the rotating shaft 1001 facing away from the pin shaft 1003. The support block 1803 is arranged under the fixed plate 14. The slide rod 1805 is arranged in the support block 1803, and one end of the slide rod 1805 is connected to the ball 1802, and the other end is provided with a second spring 1804. The other end of the second spring 1804 is connected to the support block 1803, and the ball 1802 is clamped in the groove 1801.

[0059] By setting the ball 1802 and the groove 1801, the ball 1802 can move toward the rotating shaft 1001 driven by the slide bar 1805 and the second spring 1804, and after being aligned with the groove 1801, it is stuck in the groove 1801, so that after the rotating shaft 1001 drives the pin 1003 to move to a position perpendicular to the third connecting rod 1004 through the second gear 1002, there can be a force to limit the rotation, so that the rotating shaft 1001 and the second gear 1002 will not rotate at will when driven by the incomplete gear 15, avoiding accidental rotation of the rotating shaft 1001 due to the shaking of the equipment, and further ensuring the firmness of the opening and closing mechanism 10 after unfolding. Example

[0060] refer to Figure 1 , 2 , 6, 8, 10, specifically, an air outlet 8 is provided at the position of the dual-axis motor 11 under the fixed shell 1, an air inlet 4 is provided at a position away from the air outlet 8, a fan 7 is provided in the air outlet 8, the fan 7 is connected to the lower part of the dual-axis motor 11, and a one-way transmission mechanism 12 is provided between the main shaft 17 and the dual-axis motor 11, that is, when the dual-axis motor 11 rotates forward, the main shaft 17 is driven to rotate through the one-way transmission mechanism 12, and the main shaft 17 is not driven to rotate when it rotates reversely;

[0061] By using the fan 7 and the one-way transmission mechanism 12, when the movable shell 3 is inconvenient to open, in order to meet the heat dissipation requirement, the dual-axis motor 11 will rotate in the opposite direction and drive the fan 7 to work, and the fan 7 will discharge the hot air in the fixed shell 1, and the cold air from the outside will enter the fixed shell 1 through the air inlet 4. The one-way transmission mechanism 12 can only be connected to the main shaft 17 when the dual-axis motor 11 rotates forward. Therefore, the main shaft 17 will not work at this time, and the opening and closing mechanism 10 will not be triggered accordingly, so that the effect of using a single driving source to achieve different working modes is achieved;

[0062] It should be further explained that the heat dissipation effect of this embodiment is less efficient than that of embodiment 1, and the energy consumption is higher, but it can be used in rainy weather when embodiment 1 is inconvenient to work, making the device more adaptable.

[0063] The one-way transmission mechanism 12 includes a driven chuck 1201, a driving chuck 1202, an output shaft 1203 and a first spring 1204. The driven chuck 1201 is arranged under the main shaft 17, the output shaft 1203 is arranged on the dual-axis motor 11, the driving chuck 1202 is vertically slidably connected with the output shaft 1203, the first spring 1204 is connected between the output shaft 1203 and the driving chuck 1202, and the driven chuck 1201 and the driving chuck 1202 are both provided with inclined teeth, and the directions of the two are opposite;

[0064] By setting an active chuck 1202 and a first spring 1204, when the dual-axis motor 11 rotates forward, the active chuck 1202 is driven to rotate through the output shaft 1203, and the right-angled sides of the teeth of the active chuck 1202 are matched with the right-angled sides of the teeth of the driven chuck 1201, so that the active chuck 1202 is engaged with the driven chuck 1201, and the power of the output shaft 1203 is transmitted to the main shaft 17. When the dual-axis motor 11 rotates reversely, the active chuck 1202 will apply force in the reverse direction, so that the hypotenuse of the teeth of the driven chuck 1201 is squeezed with the hypotenuse of the teeth of the active chuck 1202, so that the active chuck 1202 is squeezed downward, and it is disconnected from the driven chuck 1201, so as to achieve the effect of reverse non-transmission, and the first spring 1204 will apply an upward thrust to the active chuck 1202, so that it can bounce upward and reset in a non-squeezed state. Example

[0065] refer to Figure 2 , 3 5. Specifically, a fixing frame 13 is provided near the main shaft 17 in the fixing shell 1, a slide groove 9 is provided on the side wall of the lamp board placement opening 5, a cleaning mechanism 6 is provided in the fixing frame 13, the cleaning mechanism 6 is slidably connected to the slide groove 9, a first gear 16 is meshed on the side of the cleaning mechanism 6, and the first gear 16 is connected to the main shaft 17;

[0066] The cleaning mechanism 6 can work by meshing with the first gear 16, and convert the rotational power into horizontal linear power, and move back and forth on the lamp to sweep away the attached dust. In this way, dust can be prevented from being deposited on the lamp, which would affect the heat dissipation of the street lamp. In addition, the cleaning mechanism 6 is connected to the first gear 16 so that it can work based on the same driving source as the first embodiment, saving the cost of the driving equipment.

[0067] The cleaning mechanism 6 includes a cleaning component 601 and a reciprocating component 602. The cleaning component 601 is slidably connected to the slide groove 9. The reciprocating component 602 is arranged in the fixed frame 13 and meshes with the first gear 16, and pushes the cleaning component 601 to reciprocate. The cleaning component 601 includes a sliding plate 6011 and a brush 6012. The sliding plate 6011 is slidably connected to the slide groove 9. The brush 6012 is arranged under the sliding plate 6011, and its position corresponds to the lamp board placement opening 5.

[0068] By setting the sliding plate 6011 and the brush 6012, the sliding plate 6011 can move under the push of the reciprocating component 602, and utilize the connection with the slide groove 9 to make itself move in a straight line, and drive the brush 6012 at the bottom to sweep away the dust on the lamp, thereby achieving the effect of cleaning the lamp.

[0069] The reciprocating assembly 602 includes a third gear 6021, a first connecting rod 6022 and a second connecting rod 6023. The third gear 6021 is disposed under the fixing frame 13 and meshes with the first gear 16. One end of the first connecting rod 6022 passes through the fixing frame 13 and is connected to the third gear 6021, and the other end is hinged to the second connecting rod 6023. The other end of the second connecting rod 6023 is hinged to the cleaning assembly 601.

[0070] By setting the third gear 6021 and the first connecting rod 6022, the third gear 6021 can drive the first connecting rod 6022 connected thereto to rotate by meshing with the first gear 16, the first connecting rod 6022 drives the second connecting rod 6023 hinged at the end to move, and the second connecting rod 6023 drives the cleaning assembly 601 to move linearly, so as to achieve a reciprocating cleaning effect, making the operation of the structure more coherent and more effective;

[0071] It should also be further explained that the gear ratio of the third gear 6021 is smaller than that of the first gear 16, that is, the first gear 16 will increase the rotation speed and number of rotations of the third gear 6021, so that the main shaft 17 and the first gear 16 rotate one circle, which can drive the cleaning mechanism 6 to complete multiple reciprocating strokes, greatly improving the cleaning effect. Example

[0072] refer to Figure 1 , 2 Specifically, a baffle 24 is provided in the air inlet 4, and the baffle 24 is rotated upward to open, and a coil spring 23 is provided at the connection position between the baffle 24 and the air inlet 4;

[0073] By providing the baffle 24 and the coil spring 23, when the fan 7 is not working, the baffle 24 closes the air inlet 4 to prevent foreign matter from entering the fixed shell 1. When the fan 7 is working, the fan 7 discharges the hot air in the fixed shell 1 to reduce the internal air pressure. The outside air pushes the baffle 24 open and replenishes into the fixed shell 1, while the coil spring 23 can support the baffle 24. When the baffle 24 loses its driving force, it can promptly drive the baffle 24 to reset.

[0074] Semicircular plates 21 are provided on both sides of the air outlet 8, and a third spring 22 is connected between the semicircular plates 21 and the air outlet 8;

[0075] By providing a semicircular plate 21 and a third spring 22, the semicircular plate 21 is rotatably connected to the side of the air outlet 8 and is designed to be opened in two parts. When the fan 7 is not working, the semicircular plate 21 is pulled into a closed state by the third spring 22 to prevent foreign matter from entering the fixed shell 1. When the fan 7 is working, the wind force of the fan 7 is used to squeeze the semicircular plate 21 open so that the hot air can be discharged smoothly.

[0076] Working principle:

[0077] When the movable shell 3 needs to be opened for heat dissipation, the dual-axis motor 11 rotates forward, drives the main shaft 17 to rotate through the one-way transmission mechanism 12, the main shaft 17 drives the incomplete gear 15 to rotate, the incomplete gear 15 drives the second gear 1002 to rotate 180 degrees, the second gear 1002 drives the third connecting rod 1004 to move through the pin 1003, the third connecting rod 1004 drives the opening and closing gear 1008 to rotate through the rack 1007, and the opening and closing gear 1008 rotates the active opening and closing rod 1009 upward to prop up the movable shell 3;

[0078] When it is necessary to clean the dust on the lamp, after the incomplete gear 15 is disengaged from the second gear 1002, the main shaft 17 still drives the first gear 16 to continue rotating, and the first gear 16 drives the meshed third gear 6021 to rotate, and increases the speed and number of revolutions of the third gear 6021, so that the third gear 6021 drives the cleaning assembly 601 to reciprocate through the first connecting rod 6022 and the second connecting rod 6023 to clean the lamp;

[0079] When the movable shell 3 is not convenient to open but heat dissipation must still be ensured, the dual-axis motor 11 rotates in the opposite direction to drive the fan 7 to discharge the hot air in the fixed shell 1 through the air outlet 8. Due to the structural characteristics of the one-way transmission mechanism 12, the reverse rotation of the dual-axis motor 11 will not drive the main shaft 17, and accordingly the opening and closing mechanism 10 and the movable shell 3 will not be opened.

[0080] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A multi-stage infrared heat dissipation street lamp shade, comprising a fixed shell (1), a connecting arm (2) is provided at the rear end of the fixed shell (1), a wiring harness hole is provided in the connecting arm (2) and penetrates into the fixed shell (1), and a lamp board placement opening (5) is provided under the fixed shell (1), characterized in that: The top of the fixed shell (1) is open and a movable shell (3) is arranged above it. A fixed plate (14) is arranged inside the fixed shell (1). An opening and closing mechanism (10) and a main shaft (17) are arranged on the fixed plate (14). The other end of the opening and closing mechanism (10) is connected to the movable shell (3) and is used to drive the movable shell (3) to move horizontally upward. An incomplete gear (15) is arranged on the side of the main shaft (17). The incomplete gear (15) is meshed with the opening and closing mechanism (10). A double-axis motor (11) is arranged under the main shaft (17); The opening and closing mechanism (10) comprises a rotating shaft (1001) penetrating the fixed plate (14) and a slide rail (1006) connected to the inner wall of the fixed shell (1); a second gear (1002) is provided on the rotating shaft (1001); the second gear (1002) meshes with the incomplete gear (15); the number of teeth of the incomplete gear (15) is half of that of the second gear (1002), that is, the second gear (1002) rotates one circle when the incomplete gear (15) rotates two circles; a pin shaft (1003) is eccentrically provided on the second gear (1002); and the slide rail (1006) is provided with a second gear (1002) and a second gear (1002 ... ) is provided with a rack (1007), an opening and closing gear (1008) is meshed on the rack (1007), the opening and closing gear (1008) is connected to the inner wall of the fixed shell (1), and an active opening and closing rod (1009) is provided on the side, the other end of the active opening and closing rod (1009) is connected to the inner wall of the movable shell (3), the end surface of the rack (1007) is provided with a third connecting rod (1004), a movable groove (1005) is provided in the third connecting rod (1004), and the third connecting rod (1004) is connected to the pin shaft (1003) through the movable groove (1005); A passive opening and closing rod (20) is provided on the inner wall of the movable shell (3) at a position away from the active opening and closing rod (1009); A clamping slot (25) is provided in the movable slot (1005) of the third connecting rod (1004). The clamping slot (25) is located at the center of the third connecting rod (1004) and fits with the pin shaft (1003).

2. The multi-stage infrared heat dissipation street lamp shade according to claim 1, characterized in that: A limiting mechanism (18) is provided under the fixing plate (14) at a position corresponding to the rotating shaft (1001), and the limiting mechanism (18) can limit the rotation of the rotating shaft (1001).

3. The multi-stage infrared heat dissipation street lamp shade according to claim 1, characterized in that: The movable shell (3) is provided with a rain sensor (19), and the rain sensor (19) is electrically connected to the dual-axis motor (11).

4. The multi-stage infrared heat dissipation street lamp shade according to claim 1, characterized in that: An air outlet (8) is provided under the fixed shell (1) at the position of the dual-axis motor (11), and an air inlet (4) is provided at a position away from the air outlet (8). A fan (7) is provided in the air outlet (8), and the fan (7) is connected to the lower part of the dual-axis motor (11). A one-way transmission mechanism (12) is provided between the main shaft (17) and the dual-axis motor (11), that is, when the dual-axis motor (11) rotates in the forward direction, the main shaft (17) is driven to rotate through the one-way transmission mechanism (12), and when the dual-axis motor (11) rotates in the reverse direction, the main shaft (17) is not driven to rotate.

5. The multi-stage infrared heat dissipation street lamp shade according to claim 4, characterized in that: The one-way transmission mechanism (12) comprises a driven chuck (1201), a driving chuck (1202), an output shaft (1203) and a first spring (1204); the driven chuck (1201) is arranged under the main shaft (17); the output shaft (1203) is arranged on the dual-shaft motor (11); the driving chuck (1202) and the output shaft (1203) are vertically slidably connected; the first spring (1204) is connected between the output shaft (1203) and the driving chuck (1202); and the driven chuck (1201) and the driving chuck (1202) are both provided with inclined teeth, and the directions of the two are opposite.

6. The multi-stage infrared heat dissipation street lamp shade according to claim 4, characterized in that: A baffle (24) is provided in the air inlet (4), and the baffle (24) is rotated upward to open. A coil spring (23) is provided at the connection position between the baffle (24) and the air inlet (4).

7. The multi-stage infrared heat dissipation street lamp shade according to claim 4, characterized in that: Semicircular plates (21) are provided on both sides of the air outlet (8), and a third spring (22) is connected between the semicircular plates (21) and the air outlet (8).

8. The multi-stage infrared heat dissipation street lamp shade according to claim 1, characterized in that: A fixing frame (13) is provided in the fixing shell (1) at a position close to the main shaft (17), a sliding groove (9) is provided on the side wall of the lamp panel placement opening (5), a cleaning mechanism (6) is provided in the fixing frame (13), the cleaning mechanism (6) is slidably connected to the sliding groove (9), a first gear (16) is meshed on the side of the cleaning mechanism (6), and the first gear (16) is connected to the main shaft (17).

9. The multi-stage infrared heat dissipation street lamp shade according to claim 8, characterized in that: The cleaning mechanism (6) comprises a cleaning component (601) and a reciprocating component (602); the cleaning component (601) is slidably connected to the slide groove (9); the reciprocating component (602) is arranged in the fixed frame (13) and meshes with the first gear (16) to push the cleaning component (601) to move reciprocatingly.

10. The multi-stage infrared heat dissipation street lamp shade according to claim 9, characterized in that: The reciprocating assembly (602) comprises a third gear (6021), a first connecting rod (6022) and a second connecting rod (6023); the third gear (6021) is arranged under the fixing frame (13) and meshes with the first gear (16); one end of the first connecting rod (6022) passes through the fixing frame (13) and is connected to the third gear (6021); the other end of the first connecting rod (6022) is hinged to the second connecting rod (6023); the other end of the second connecting rod (6023) is hinged to the cleaning assembly (601).

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