Sealing structure of lifting street lamp and lamp pole

Abstract

The present invention discloses a sealing structure of a lifting type street lamp and a lamp pole, and relates to the technical field related to lighting equipment, including a lamp pole, an outer wall of the lamp pole is provided with a lamp holder, the lamp holder is connected with a sliding plate, the outer wall of the lamp pole is provided with a sliding groove, a first control mechanism, the lamp pole is connected with the first control mechanism, the first control mechanism controls the lamp holder to move on the outer wall of the lamp pole, a closing mechanism, a plurality of closing mechanisms are provided, and the plurality of closing mechanisms are rotatably connected, the closing mechanism comprises an upper folding plate, a lower folding plate and a connecting strip, the lamp holder moves upward to make the closing mechanism unfold and cover the sliding groove, and the sliding groove is closed, the lamp holder is driven to move to the top of the lamp pole by the first control mechanism, and then the plurality of closing mechanisms are driven to unfold, and the unfolded closing mechanism covers the sliding groove provided on the outer wall of the lamp pole, and the lamp pole is closed, thereby solving the problem of the existing lifting type street lamp that rainwater will enter the interior of the lamp pole through the sliding groove and damage the lamp pole and components inside the lamp pole when encountering rainy and snowy weather.

Description

Technical Field

[0001] The present invention relates to the technical field related to lighting equipment, and in particular to a sealing structure of a lifting type street lamp and a lamp pole. Background Art

[0002] Streetlights are outdoor lighting facilities designed for road lighting, and they are an important part of the city lighting system. The main function of streetlights is to provide necessary lighting at night, improve road visibility, thereby improving safety and improving the beauty of the city. Generally speaking, the standard structure of streetlights includes lamp holders, lamp poles, power supply systems, and bases. In addition, factors such as maintenance convenience, durability, and environmental adaptability need to be considered when designing streetlights. High-tech components such as LED light sources, solar panels, and sensors can be added to modern streetlights to improve energy efficiency and intelligent control.

[0003] Among them, the base is the bottom structure of the lamp pole, which is used to fix the lamp pole to the ground, support the entire street light, and ensure the stability of the entire structure. The lamp head contains components such as bulbs and reflectors, which are installed on the top of the lamp pole and are used to control the direction and range of light. The lamp pole is used to support the vertical structure of the entire lamp, increase the height of the lamp head, improve the lighting range, reduce light pollution, and reduce the lamp head from being hit by vehicles or large equipment. The power supply system includes cables and distribution boxes, which are responsible for providing and managing the power supply of the lamp, and usually include electrical accessories installed inside the lamp pole or near the base.

[0004] Most street lamps only have wiring passing through the lamp poles, and the lamp caps contain multiple parts, so there is a high probability of natural damage. Therefore, the lamp caps need to be regularly maintained. Especially for light bulbs, when used for a long time, they will be damaged due to heat, filament fatigue, voltage fluctuations and the end of their own life. They need to be replaced in time after damage to ensure road lighting. When the existing street lamp caps are maintained, workers are mostly moved to the lamp caps by cranes to disassemble and maintain the lamp caps. In order to reduce the maintenance cost of street lamps, increase efficiency, reduce safety risks, and reduce the impact on traffic, reference patent publication number: CN105180045A liftable street lamp and CN103759179A a liftable street lamp, using a liftable lamp cap, driven by a lifting mechanism to slide the lamp cap on the outer wall of the lamp pole, when maintenance is required, the height of the lamp cap is lowered, so that maintenance personnel can access the lamp cap for disassembly and maintenance without using equipment.

[0005] However, the existing lifting street lamps, since the lifting structure of the lamp head is mostly set inside the lamp pole, in order to ensure the lifting of the lamp head, most of them need to open a slide groove on the outer wall of the lamp pole, for example, the slide groove is cut on the outer wall of the seamless tube (lamp pole). When encountering rainy and snowy weather, the rain will be tilted by the wind, and the rainwater tilted and falling in the direction of the slide groove will enter the lamp pole through the slide groove, causing the internal electrical components to get damp, which may cause a short circuit or even the risk of electric shock. Long-term exposure to moisture will cause the metal parts inside the lamp pole to rust and corrode, which will also weaken the integrity of the structure. If the accumulated water in the lamp pole is not handled in time, the accumulated water will freeze at low temperatures, and the expansion force generated by the ice can cause physical damage to the internal structure of the lamp pole. In order to solve the above-mentioned problems, a lifting street lamp and a sealing structure of the lamp pole are now provided. Summary of the invention

[0006] The purpose of the present invention is to provide a sealing structure for a liftable street lamp and a lamp pole, so as to solve the problem of the existing liftable street lamp proposed in the above background technology that rainwater will enter the lamp pole through the slide groove when encountering rainy and snowy weather, thereby damaging the lamp pole and its internal components.

[0007] To achieve the above object, the present invention provides the following technical solution: a lifting street lamp, comprising a pole body, a lamp head for emitting lighting light is slidably mounted on the outer wall of the pole body, one end of the lamp head is connected to a sliding plate, a sliding groove matching the sliding plate is provided on the outer wall of the pole body, and a base for supporting the entire street lamp is fixedly connected to the bottom of the pole body;

[0008] A first control mechanism, the rod body is connected to the first control mechanism, and the first control mechanism controls the lamp head to move on the outer side wall of the rod body;

[0009] A closing mechanism, the closing mechanism includes an upper folding plate, a lower folding plate and a connecting strip, the connecting strip is rotatably connected between the upper folding plate and the lower folding plate, the uppermost upper folding plate is rotatably connected to the lower end of the sliding plate, the lowermost lower folding plate is rotatably connected to the lower end of the outer wall of the rod body, and the remaining lower folding plates and adjacent upper folding plates are rotatably connected with sliding strips, the sliding strips are slidably installed in the sliding groove of the rod body, multiple closing mechanisms are provided, and the multiple closing mechanisms are rotatably connected, the lamp head moves upward to make the closing mechanism unfold and cover the sliding groove to close the sliding groove.

[0010] In a further embodiment, one end of the lamp holder is fixedly connected to a bracket, the other end of the bracket is fixedly connected to an end surface of a sliding plate, and the sliding plate is slidably installed in a sliding groove of the rod body.

[0011] In a further embodiment, a first control mechanism for adjusting the height of the lamp head is provided inside the rod body and the base, the first control mechanism includes a screw, a driven gear and a driving gear, the screw is rotatably installed inside the rod body, the driven gear and the driving gear are both rotatably installed in the base, and the driven gear and the driving gear are meshed with each other, the lower end of the rod body passes through the base, and the lower end of the rod body is fixedly connected to the upper end of the driving gear, one end face of the sliding plate is fixedly connected to a sliding cylinder, and the sliding cylinder is threadedly connected to the outer wall of the screw.

[0012] In a further embodiment, both ends of the end surface of the connecting strip are fixedly connected with elastic strips for applying elastic force to the upper folding plate and the lower folding plate, the side edges of the upper folding plate and the lower folding plate are fixedly connected with limiting cylinders, and both ends of the elastic strip are slidably inserted in the limiting cylinders.

[0013] The sealing structure of the lamp pole of the lifting street lamp mentioned above comprises two sealing mechanisms for filling the gap between the sealing mechanism and the pole body and a second control mechanism for controlling the sealing mechanism.

[0014] In a further embodiment, the sealing mechanism includes a sealing strip, a pressure plate and a control strip, the sealing strip is fixedly connected to the end face of the pressure plate, and sealing grooves are provided on both sides of the outer wall of the rod body that fits the end face of the sliding plate, the sealing strip and the pressure plate are slidably installed in the sealing groove, and a retraction rod for applying a pulling force to the pressure plate toward the sealing groove is also installed in the sealing groove, the control strip is slidably installed in the sealing groove, and the control strip is provided with a sliding hole for the sliding of the retraction rod, the end faces of the control strip and the pressure plate that are close to each other are fixedly connected with inclined blocks, and the inclined surfaces of the inclined blocks of the control strip and the pressure plate fit each other, the retraction rod includes a sleeve and a sleeve rod, the sleeve is fixedly connected to the pressure plate, the sleeve rod is fixedly connected to the inner wall of the sealing groove, the sleeve rod is slidably inserted in the sleeve, and a spring for pulling the sleeve rod to retract into the sleeve is installed in the sleeve.

[0015] In a further embodiment, the second control mechanism is set in two, and the second control mechanism includes an internal threaded barrel, a gear ring and an adjusting gear. The internal threaded barrel is rotatably installed in the base, the gear ring is fixedly sleeved on the outer wall of the internal threaded barrel, the adjusting gear is rotatably installed in the base, and the adjusting gear and the gear ring are meshed with each other, and the lower end of the control strip is threadedly connected in the internal threaded barrel.

[0016] In a further embodiment, the second control mechanism includes an internal threaded cylinder and a gear ring. The internal threaded cylinder is rotatably installed in the base, the gear ring is fixedly sleeved on the outer wall of the internal threaded cylinder, and the upper end of the driven gear is fixedly connected with an adjustment ring. The outer wall of the adjustment ring is provided with teeth matching the gear ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is a sealing structure for a liftable street lamp and a lamp pole, wherein a lamp head is driven to move to the top of the lamp pole through a first control mechanism, and since a plurality of closing mechanisms are rotatably connected, the plurality of closing mechanisms are driven to expand during the upward movement of the lamp head, and the expanded closing mechanisms cover a slide groove provided on an outer wall of the lamp pole to seal the lamp pole, thereby solving the problem of existing liftable street lamps that rainwater may enter the interior of the lamp pole through the slide groove and damage the lamp pole and components inside the lamp pole when encountering rainy or snowy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a street lamp according to an embodiment of the present invention;

[0020] Figure 2 For the embodiment of the present invention Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 For the embodiment of the present invention Figure 1 Enlarged view of point B in the middle;

[0022] Figure 4 For the embodiment of the present invention Figure 1 Enlarged view of point C in the middle;

[0023] Figure 5 A cross-sectional view of a lamp pole according to an embodiment of the present invention;

[0024] Figure 6 For the embodiment of the present invention Figure 5 Enlarged view of point D in the middle;

[0025] Figure 7 For the embodiment of the present invention Figure 5 Enlarged view of point E in the middle;

[0026] Figure 8 For the embodiment of the present invention Figure 5 Enlarged view of point F in the middle;

[0027] Fig. 9 For the embodiment of the present invention Figure 5 Enlarged view of point G in the middle;

[0028] Fig.10 A partial cross-sectional view of a lamp pole and a base according to an embodiment of the present invention;

[0029] Fig.11 For the embodiment of the present invention Fig.10 Enlarged view of H in the middle;

[0030] Fig.12 For the embodiment of the present invention Fig.10 Enlarged view of K in the middle;

[0031] Fig.13 This is a schematic diagram of the structure of a lamp holder according to an embodiment of the present invention;

[0032] Fig.14 A partial cross-sectional view of a sealing mechanism according to an embodiment of the present invention;

[0033] Fig.15 is a schematic structural diagram of a second control mechanism according to an embodiment of the present invention;

[0034] Fig.16 This is a schematic diagram of the structure of the second control mechanism of the second embodiment of the present invention.

[0035] In the figure: 1. rod body; 11. base; 2. lamp holder; 21. bracket; 22. sliding plate; 23. sliding cylinder; 3. closing mechanism; 31. upper folding plate; 32. lower folding plate; 33. connecting strip; 34. sliding strip; 35. elastic strip; 351. limiting cylinder; 4. sealing mechanism; 41. sealing strip; 42. pressure plate; 43. control strip; 44. inclined block; 45. retracting rod; 5. first control mechanism; 51. screw rod; 52. driven gear; 53. driving gear; 6. second control mechanism; 61. internal threaded cylinder; 62. gear ring; 63. adjusting gear; 64. adjusting ring. DETAILED DESCRIPTION

[0036] The following will be described clearly and completely in conjunction with 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.

[0037] Embodiment 1

[0038] See also Figure 1-15 This embodiment provides a sealing structure of a liftable street lamp and a lamp pole, including a pole body 1 and a lamp holder 2 of the street lamp.

[0039] Among them, Figure 1 and Fig.13 As shown, one end of the lamp holder 2 is fixedly connected to a bracket 21, and the end of the bracket 21 away from the lamp holder 2 is fixedly connected to a sliding plate 22. A sliding groove is provided on the outer wall of the shaft 1, and the sliding plate 22 is slidably installed in the sliding groove.

[0040] The lower end of the rod body 1 is fixedly connected with a base 11. After the base 11 is connected to the cement pile through a screw rod, the rod body 1 can be vertically fixed on the ground.

[0041] The lamp head 2 is provided with lighting components such as a bulb and a reflector, and the circuit of the lighting component passes through the bracket 21 and the sliding plate 22 and extends into the shaft 1.

[0042] like Figure 1 and Fig.13As shown, the bracket 21 and the sliding plate 22 are in a triangular structure. Since the triangular structure disperses and balances the forces applied to its apex and sides to the maximum extent, it can effectively resist various twisting and bending forces.

[0043] This force dispersion makes the bracket 21 and the sliding plate 22 more stable when bearing weight or external forces (such as wind pressure), thereby ensuring that the lamp head 2 can remain stable even in adverse weather conditions. The triangular structure also helps to maintain the accuracy of the lamp head 2 in the predetermined direction and angle. This stability is particularly important in applications where the lamp head 2 needs to maintain lighting at a specific angle for a long time. By adopting the triangular structure, the bracket 21 and the sliding plate 22 provide a strong support force, extending the service life of the entire lamp.

[0044] The interior of the shaft 1 is provided with a first control mechanism 5 for controlling the sliding of the lamp head 2. Figure 5 and Fig. 9 As shown, the first control mechanism 5 includes a screw rod 51, a driven gear 52 and a driving gear 53. The screw rod 51 is rotatably mounted inside the shaft 1. The end surface of the sliding plate 22 away from the lamp holder 2 is fixedly connected with a sliding cylinder 23, and the sliding cylinder 23 is threadedly sleeved on the outer wall of the screw rod 51. The driven gear 52 and the driving gear 53 are both rotatably mounted in the base 11, and the driven gear 52 is aligned with the screw rod 51 up and down. The lower end of the screw rod 51 penetrates and extends into the base 11, and the lower end of the screw rod 51 extending into the base 11 is fixedly connected to the driven gear 52. The driving gear 53 and the driven gear 52 are meshed with each other.

[0045] The upper end of the driven gear 52 is provided with a rotating shaft, which extends through the base 11. The upper end of the rotating shaft is provided with a hexagonal screw head, and a tool such as a wrench can be used to drive the rotating shaft to rotate, that is, to drive the driving gear 53 to rotate, and the driving gear 53 rotates to drive the driven gear 52 to rotate, that is, to synchronously drive the screw rod 51 to rotate, and the screw rod 51 rotates to cooperate with the sliding plate 22 to drive the sliding cylinder 23 to slide up and down in the rod body 1, and the sliding plate 22 limits the sliding cylinder 23 to prevent the sliding cylinder 23 from rotating. The sliding cylinder 23 that slides up and down drives the lamp head 2 to slide through the sliding plate 22 and the bracket 21.

[0046] Of course, the rotation mode of the rotating shaft is not limited to manual operation using a wrench. On this basis, the upper end of the base 11 is designed with a motor mounting position, which can be conveniently installed with an electric motor. The output shaft of the motor is directly connected to the rotating shaft (that is, the output shaft of the motor is connected to the rotating shaft), which realizes the effective transmission of mechanical energy. By controlling the start and stop of the motor, as well as adjusting its operating speed and direction, the rotation state of the rotating shaft can be accurately controlled. This design not only improves the flexibility and automation level of operation, but also enhances the controllability of the rotating shaft. In addition, compared with manual operation, the motor drive mode can reduce labor intensity, improve work efficiency and safety, especially in occasions where continuous or repetitive operations are required.

[0047] The first control mechanism 5 is used to adjust the height of the lamp holder 2. When the street lamp needs to be disassembled and repaired, the lamp holder 2 can be lowered so that the height of the lamp holder 2 is flush with that of the maintenance worker (that is, the lamp holder 2 and the maintenance worker are roughly located at the same horizontal plane). At this time, the maintenance worker can easily access the street lamp to disassemble and repair it.

[0048] Compared with the traditional ordinary street lamp maintenance method, in which a crane or various climbing tools are needed to lift workers to the height of the lamp head 2 for maintenance, the design of the lamp head 2 that can be moved downward significantly improves the convenience and safety of maintenance. This design allows the lamp head 2 to be directly lowered to the ground, so that maintenance and replacement work can be carried out at ground level, greatly reducing the need for workers to work at high altitudes, thereby significantly reducing the risks of high-altitude operations, such as potential safety hazards such as falling accidents of maintenance workers. In addition, this design also saves the cost of using expensive high-altitude work equipment (such as cranes). Since maintenance work can be carried out on the ground, it also reduces the safety hazards caused by high-altitude operations (such as the risk of falling accidents of maintenance workers). Moreover, due to the large size of the crane, when using the crane to move workers to the position of the lamp head 2 for disassembly or maintenance, not only does it need to close part of the road, affecting normal traffic, but also because most cranes use hydraulic arms, significant noise pollution may be generated during operation. In contrast, the lamp head 2 that can be moved downward avoids these problems and simplifies the entire maintenance process. Furthermore, since there is no need to build complex temporary construction facilities, the time for maintaining and replacing the lamp holder 2 can be significantly shortened, which not only improves the maintenance efficiency, but also reduces the labor intensity of the maintenance personnel. By simplifying the operation process, the entire maintenance operation becomes more efficient and environmentally friendly. Therefore, this height-adjustable lamp holder 2 design not only improves the reliability and maintenance convenience of the street lamp system, but also conforms to the trend of modern urban facilities moving towards higher safety, efficiency and environmental friendliness.

[0049] In rainy and snowy weather, the chute provided on the shaft 1 allows water to enter the shaft during rain or snowfall. This water intrusion may not only cause direct water damage to the electrical components in the shaft 1, but may also increase the risk of electrical failures, such as short circuits or electric shocks, due to the contact between water and electricity. In addition, the accumulation of rainwater inside the shaft 1 will freeze as the weather gets colder. Ice not only blocks the internal structure, but the expansion force of ice may cause significant physical damage to the internal structure of the shaft 1, and this damage may include the formation of cracks and the weakening of structural strength. The long-term existence of this problem will not only shorten the service life of the shaft 1, but may also increase maintenance costs, because it is necessary to regularly check and repair the damage caused by water intrusion and ice. In order to prevent rainwater from entering the shaft 1 through the chute, the outer wall of the shaft 1 is provided with a closing mechanism 3.

[0050] Among them, the closing mechanism 3 is set to multiple, such as Figure 1 , Figure 2 and Figure 3 As shown, the closing mechanism 3 includes an upper folding plate 31, a lower folding plate 32 and a connecting strip 33. Referring to the hinge, the upper folding plate 31 and the lower folding plate 32 are respectively connected to the upper and lower ends of the connecting strip 33 by rotation, so that the upper folding plate 31 and the lower folding plate 32 can be folded by the connecting strip 33, and the folded upper folding plate 31 and the lower folding plate 32 can fit each other. A sliding bar 34 is arranged between the lower folding plate 32 and the upper folding plate 31 of the adjacent closing mechanism 3, that is, the lower folding plate 32 and the adjacent upper folding plate 31 are connected to the upper and lower ends of the sliding bar 34 by rotation, and the sliding bar 34 is slidably installed in the slide groove of the shaft 1. The upper end of the upper folding plate 31 at the top is connected to the lower end of the sliding plate 22 by rotation, and the lower end of the lower folding plate 32 at the bottom is connected to the lowermost part of the outer wall of the shaft 1 by rotation. When in use, the lamp head 2 moves upward, thereby driving the upper folding plate 31 and the lower folding plate 32 to unfold in a straight line. The unfolded upper folding plate 31, the lower folding plate 32 and the connecting strip 33 cover the slide groove on the outer wall of the shaft 1, thereby closing the slide groove to prevent rainwater from entering the shaft 1 through the slide groove. Figure 1 As shown, the length of the upper folding plate 31 and the lower folding plate 32 is less than the length of the bracket 21, so that after the closing mechanism 3 is folded, the lamp head 2 can extend from one side of the folded closing mechanism 3. The thickness of the upper folding plate 31 and the lower folding plate 32 is 6 to 10 mm, and the height of all the closing mechanisms 3 stacked after folding is less than 1300 mm, which is less than the height of most maintenance workers, making it convenient for maintenance workers to repair the lowered lamp head 2.

[0051] When the lamp head 2 needs to be repaired, the lamp head 2 needs to be lowered. At this time, the upper folding plate 31 and the lower folding plate 32 need to be folded. After the upper folding plate 31 and the lower folding plate 32 are folded, the upper folding plate 31 and the lower folding plate 32 will extend toward the outer wall of the shaft 1. When the upper folding plate 31 and the lower folding plate 32 are unfolded to close the chute, the two sides of the upper folding plate 31, the lower folding plate 32 and the connecting strip 33 are only in contact with the inner wall of the chute, and the inner wall of the chute applies a directional force to the side walls of the upper folding plate 31 and the lower folding plate 32, driving the upper folding plate 31, the lower folding plate 32 and the connecting strip 33 to reset and engage in the notch of the chute of the shaft 1, thereby closing the chute.

[0052] However, since the upper folding plate 31 and the lower folding plate 32 are arranged vertically in a line, the sliding plate 22 applies a vertical downward force to the upper folding plate 31 and the lower folding plate 32. At this time, the line of action of this force is perpendicular to the axis of rotation (connecting strip 33). In this case, the applied force mainly causes the upper folding plate 31 and the lower folding plate 32 to be subjected to pressure, rather than generating a rotational torque on their connecting axis. Therefore, there is no effective torque to cause the plate to rotate relative to the connecting axis. Sufficient torque is required for rotation to occur, and torque is the product of force and lever arm. Since the applied force is directly downward and acts on the length distribution of the upper folding plate 31 and the lower folding plate 32, there is almost no lever arm perpendicular to the axis of rotation. Therefore, there is a lack of effective torque to promote the rotation of the upper folding plate 31 and the lower folding plate 32. In order to facilitate the folding of the upper folding plate 31 and the lower folding plate 32 toward the shaft 1, the connecting strip 33 is fixedly connected with elastic strips 35 on both sides facing the shaft 1, wherein the elastic strip 35 is configured as a U-shaped metal elastic strip, and the middle part of the outer wall of the elastic strip 35 is fixedly connected to the connecting strip 33. At this time, the bent ends of the elastic strip 35 face the shaft 1, as shown in FIG. Figure 2 As shown, both sides of the upper folding plate 31 and the lower folding plate 32 are fixedly connected with the limiting cylinder 351, and the limiting cylinder 351 of the upper folding plate 31 and the lower folding plate 32 are distributed in an eight-shaped shape, and the two ends of the elastic strip 35 are slidably inserted in the limiting cylinder 351.

[0053] When the sliding plate 22 slides downward, the structure of the closing mechanism 3 is no longer in a tight state (i.e., the structure becomes loose). At this time, the elastic strip 35 bends inwards by its own elastic force, thereby applying a thrust to the limiting cylinder 351, causing the two limiting cylinders 351 to rotate, thereby driving the upper folding plate 31 and the lower folding plate 32 to rotate and fold toward the shaft 1. When the sliding plate 22 slides downward, all the sliding strips 34 in the slide groove of the shaft 1 approach each other, and after the lamp head 2 moves to the bottom, all the sliding strips 34 fit together.

[0054] When the closing mechanism 3 is used in conjunction with the shaft 1, although the closing mechanism 3 is used to cover the slide groove of the shaft 1 to prevent external elements (rainwater, dust and dirt) from entering the shaft 1, in actual application, rainwater can still penetrate through the tiny gap between the closing mechanism 3 and the shaft 1. Although this gap is small, it is enough to cause moisture and dust to enter the shaft 1 through the slide groove, which may cause damage to the electrical components inside the shaft 1. In order to reduce the gap, a rubber strip is set around the slide groove of the shaft 1. After the closing mechanism 3 is covered on the slide groove, the rubber strip fills the gap between the closing mechanism 3 and the shaft 1, thereby sealing the shaft 1. However, during the sliding process of the sliding plate 22 and the sliding bar 34, the sliding plate 22 and the sliding bar 34 contact the rubber strip, which will wear the rubber strip. In order to further close the slide groove and seal the shaft 1, the shaft 1 is provided with a sealing mechanism 4.

[0055] Sealing grooves are provided on both sides of the slide groove of the shaft 1, and two sealing mechanisms 4 are provided, and the two sealing mechanisms 4 are respectively provided in the two sealing grooves. Fig.11 and Fig.14 As shown, the sealing mechanism 4 includes a sealing strip 41, a pressure plate 42 and a control strip 43. The sealing strip 41 is set as a rubber strip. The sealing strip 41 is fixedly connected to the end face of the pressure plate 42. The sealing strip 41 and the pressure plate 42 are slidably installed in the sealing groove. The control strip 43 is slidably installed in the sealing groove up and down. The end faces of the control strip 43 and the pressure plate 42 are fixedly connected with a plurality of inclined blocks 44. One end of the inclined block 44 is provided with an inclined surface. The inclined surfaces of the inclined blocks 44 of the control strip 43 and the pressure plate 42 fit each other.

[0056] The end surface of the pressure plate 42 away from the sealing strip 41 is fixedly connected to the inner back surface of the sealing groove with a retracting rod 45, which includes a sleeve, a sleeve rod and a spring. One end of the sleeve rod is slidably inserted into the sleeve, and the spring is installed in the sleeve. One end of the spring is fixedly connected to the inner bottom surface of the sleeve, and the other end of the spring is fixedly connected to one end of the sleeve rod. The spring applies a retracting force to the sleeve rod, thereby driving the sleeve rod to retract into the sleeve. One end of the sleeve rod away from the sleeve is fixed to the inner wall of the sealing groove, and one end of the sleeve away from the sleeve rod is fixedly connected to one end of the pressure plate 42. The contraction of the spring drives the pressure plate 42 and the sealing strip 41 to retract into the sealing groove through the sleeve and the sleeve rod.

[0057] When the control strip 43 moves upward, the inclined surface of the inclined surface block 44 of the control strip 43 applies pressure to the inclined surface of the inclined surface block 44 of the pressure plate 42, thereby driving the pressure plate 42 to move toward the notch of the sealing groove, so that the end face of the sealing strip 41 extends out of the sealing groove, and the extended part of the sealing strip 41 contacts the closing mechanism 3 and the sliding strip 34 to be deformed, thereby filling the gap between the closing mechanism 3 and the rod body 1 and sealing the rod body 1.

[0058] Compared with the existing lifting street lamps, most of which have a chute to facilitate the movement of the lamp head 2, the closure mechanism 3 and the sealing mechanism 4 are provided to close the chute and seal the shaft 1, which helps to enhance the structural integrity of the street lamp pole, provide a neater and more beautiful appearance, and reduce physical damage caused by external influences (such as wind or physical impact). This enhanced structural stability can extend the service life of the street lamp and reduce the need for frequent replacement or repair due to damage. While the closed chute prevents rainwater from entering the shaft 1, it can also effectively prevent small animals and insects from invading the interior of the shaft 1, which is particularly important for protecting internal wires and electrical equipment from damage. These small creatures may chew on the wires, causing short circuits or even fire risks. Dust, garbage and other substances that may clog or damage the mechanical parts inside the lamp pole cannot enter the interior of the shaft 1, which also reduces the need for regular cleaning and maintenance and reduces maintenance costs. The closed shaft 1 can also increase the safety of the street lamp and prevent passers-by or staff from being injured when they accidentally touch live parts.

[0059] like Fig.10 As shown, when sealing the gap between the sealing mechanism 3 and the shaft 1, the control strip 43 needs to be moved upward. In order to adjust the movement of the control strip 43, a second control mechanism 6 is provided in the base 11. The second control mechanism 6 is provided in two pieces, and controls the sliding of the two control strips 43 respectively. Fig.12 and Fig.15 As shown, the second control mechanism 6 includes an internal threaded barrel 61, a gear ring 62 and an adjusting gear 63, wherein the internal threaded barrel 61 and the adjusting gear 63 are both rotatably mounted in the base 11, the gear ring 62 is fixedly sleeved on the outer side wall of the internal threaded barrel 61, and the gear ring 62 and the adjusting gear 63 are meshed with each other. The lower end of the control strip 43 is fixedly connected with a screw rod, and the screw rod of the control strip 43 passes through the base 11 and is threadedly connected in the internal threaded barrel 61. The adjusting gear 63 is the same as the driving gear 53, and the upper end of the adjusting gear 63 is also fixedly connected with a rotating shaft, and the rotating shaft can also be rotated by a wrench or a motor. The adjusting gear 63 rotates to drive the internal threaded barrel 61 to rotate through the gear ring 62, and the control strip 43 can be adjusted to slide up and down in the sealing groove through the screw rod.

[0060] Embodiment 2

[0061] See also Fig.14 and Fig.16 , which is different from Example 1 in that:

[0062] The second control mechanism 6 is also provided with two, but the second control mechanism 6 only includes an internal threaded barrel 61 and a toothed ring 62, and the internal threaded barrel 61 and the toothed ring 62 are installed in the same manner as in the first embodiment. Among them, an adjustment ring 64 is fixedly connected to the upper end of the driven gear 52, and the adjustment ring 64 is fixedly sleeved below the outer side wall of the screw rod 51, the adjustment ring 64 and the toothed ring 62 are located in the same horizontal plane, and the outer side wall of the adjustment ring 64 is fixedly connected with two teeth, and the two teeth on the outer side wall of the adjustment ring 64 are symmetrically arranged with the screw rod 51 as the central axis, and the teeth on the outer side wall of the adjustment ring 64 mesh with the toothed rings 62 of the two second control mechanisms 6.

[0063] Taking the control of the lamp head 2 moving upward as an example, after the screw rod 51 is rotated by rotating the driving gear 53 to cooperate with the driven gear 52, the lamp head 2 can be driven to move upward. When the driven gear 52 rotates, the adjusting ring 64 is driven to rotate synchronously. During the rotation of the adjusting ring 64, the teeth on the outer wall of the adjusting ring 64 mesh with the two toothed rings 62 one by one, and then the toothed ring 62 is driven to rotate. The rotating toothed ring 62 can cooperate with the internal threaded tube 61 and the control strip 43 to move the sealing strip 41 toward the closing mechanism 3. When the lamp head 2 moves to the top, the teeth on the outer wall of the adjusting ring 64 mesh with the two toothed rings 62 for the last time. At the same time, the sealing strip 41 fits the unfolded closing mechanism 3, fills the gap between the closing mechanism 3 and the shaft 1, and maintains the sealing of the shaft 1.

[0064] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting street lamp, characterized in that: include: A shaft (1), a lamp head (2) for emitting illumination light being slidably mounted on the outer side wall of the shaft (1), one end of the lamp head (2) being connected to a sliding plate (22), a sliding groove matching the sliding plate (22) being provided on the outer side wall of the shaft (1), and a base (11) for supporting the entire street lamp being fixedly connected to the bottom of the shaft (1); A first control mechanism (5), the shaft (1) being connected to the first control mechanism (5), the first control mechanism (5) controlling the lamp head (2) to move on the outer side wall of the shaft (1); A closing mechanism (3), the closing mechanism (3) comprising an upper folding plate (31), a lower folding plate (32) and a connecting strip (33), the connecting strip (33) being rotatably connected between the upper folding plate (31) and the lower folding plate (32), the uppermost upper folding plate (31) being rotatably connected to the lower end of the sliding plate (22), the lowermost lower folding plate (32) being rotatably connected to the lower end of the outer wall of the shaft (1), and sliding strips (34) being rotatably connected between the remaining lower folding plates (32) and the adjacent upper folding plates (31), the sliding strips (34) being slidably mounted in a slide groove of the shaft (1), a plurality of the closing mechanisms (3) being provided, and the plurality of closing mechanisms (3) being rotatably connected, the lamp head (2) moving upward causes the closing mechanism (3) to unfold and cover the slide groove, thereby closing the slide groove.

2. The liftable street lamp according to claim 1, characterized in that: One end of the lamp holder (2) is fixedly connected to a bracket (21), and the other end of the bracket (21) is fixedly connected to the end surface of a sliding plate (22), and the sliding plate (22) is slidably mounted in a sliding groove of the shaft (1).

3. A liftable street lamp according to claim 2, characterized in that: A first control mechanism (5) for adjusting the height of the lamp head (2) is arranged inside the shaft (1) and the base (11). The first control mechanism (5) comprises a screw rod (51), a driven gear (52) and a driving gear (53). The screw rod (51) is rotatably mounted inside the shaft (1). The driven gear (52) and the driving gear (53) are both rotatably mounted inside the base (11). The driven gear (52) and the driving gear (53) are meshed with each other. The lower end of the shaft (1) passes through the base (11), and the lower end of the shaft (1) is fixedly connected to the upper end of the driving gear (53). One end surface of the sliding plate (22) is fixedly connected to a sliding cylinder (23), and the sliding cylinder (23) is threadedly connected to the outer wall of the screw rod (51).

4. The liftable street lamp according to claim 1, characterized in that: Both ends of the end surface of the connecting strip (33) are fixedly connected to elastic strips (35) for applying elastic force to the upper folding plate (31) and the lower folding plate (32); the side edges of the upper folding plate (31) and the lower folding plate (32) are fixedly connected to a limiting cylinder (351); and both ends of the elastic strip (35) are slidably inserted in the limiting cylinder (351).

5. A sealing structure for a lamp pole of a liftable street lamp according to claim 3, characterized in that: The utility model comprises two sealing mechanisms (4) for filling the gap between the sealing mechanism (3) and the shaft (1) and a second control mechanism (6) for controlling the sealing mechanism (4).

6. The sealing structure of a lamp pole of a liftable street lamp according to claim 5, characterized in that: The sealing mechanism (4) comprises a sealing strip (41), a pressure plate (42) and a control strip (43); the sealing strip (41) is fixedly connected to the end surface of the pressure plate (42); sealing grooves are provided on both sides of the outer wall of the rod body (1) that fit the end surface of the sliding plate (22); the sealing strip (41) and the pressure plate (42) are slidably installed in the sealing groove; a retractable rod (45) for applying a pulling force to the pressure plate (42) toward the sealing groove is also installed in the sealing groove; the control strip (43) is slidably installed in the sealing groove; the control strip (43) is provided with a sliding hole for the retractable rod (45) to slide; the end surfaces of the control strip (43) and the pressure plate (42) that are close to each other are fixedly connected to inclined blocks (44); and the inclined surfaces of the inclined blocks (44) of the control strip (43) and the pressure plate (42) fit each other; The retractable rod (45) comprises a sleeve and a sleeve rod, the sleeve is fixedly connected to the pressure plate (42), the sleeve rod is fixedly connected to the inner wall of the sealing groove, the sleeve rod is slidably inserted in the sleeve, and a spring is installed in the sleeve for pulling the sleeve rod to retract into the sleeve.

7. The sealing structure of a lamp pole of a liftable street lamp according to claim 6, characterized in that: The second control mechanism (6) is provided in two pieces, and comprises an internally threaded barrel (61), a toothed ring (62) and an adjusting gear (63); the internally threaded barrel (61) is rotatably mounted in the base (11); the toothed ring (62) is fixedly sleeved on the outer wall of the internally threaded barrel (61); the adjusting gear (63) is rotatably mounted in the base (11), and the adjusting gear (63) and the toothed ring (62) are meshed with each other; and the lower end of the control strip (43) is threadedly connected in the internally threaded barrel (61).

8. The sealing structure of a lamp pole of a liftable street lamp according to claim 5, characterized in that: The second control mechanism (6) comprises an internally threaded barrel (61) and a gear ring (62); the internally threaded barrel (61) is rotatably mounted in the base (11); the gear ring (62) is fixedly sleeved on the outer wall of the internally threaded barrel (61); an adjusting ring (64) is fixedly connected to the upper end of the driven gear (52); and the outer wall of the adjusting ring (64) is provided with teeth matching the gear ring (62).

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