Liftable lamp post and lighting street lamp

Abstract

According to the liftable lamp pole and the lighting street lamp, a lifting mechanism used for enabling the height of a lamp holder frame to be adjustable is arranged in a pole base, an adjusting shaft piece located in the pole base is movably arranged on the lamp base, and a first gear and a second gear which are used for being meshed with bevel teeth are arranged in the pole base. According to the liftable lamp pole and the lighting street lamp, the positioning plate, the first gear and the second gear are assembled by pulling and pulling the adjusting shaft piece, and three modes of directly putting down the street lamp, automatically putting down the street lamp and manually putting down the street lamp are formed, so that the put-down street lamp can be directly held by hands when three or more workers exist on the site; when only one or two workers exist on site, the street lamp is automatically put down and then the next street lamp is automatically put down, and when only one worker exists on site, the street lamp is manually put down and the street lamp maintenance work is processed in a one-to-one mode, so that the adaptability of the street lamp is higher, and the labor resource cost distribution is efficient and standard.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting street lamps, and in particular to a liftable lamp pole and a lighting street lamp. Background Art

[0002] Street lamps are commonly used for road lighting. They have the advantages of high efficiency, energy saving, and safety, and provide necessary guarantees for the passage of pedestrians and vehicles at night.

[0003] According to the publication (announcement) number: CN112082123A, publication (announcement) date: 2020-12-15, a smart street lamp that is easy to repair is disclosed.

[0004] In the prior art including the above-mentioned patents, for street lamps used for park road lighting, since the space where the street lamps are located makes it difficult for large-scale climbing equipment to enter, manual climbing is generally used to maintain or repair the street lamps. However, working at heights is accompanied by danger, so the lamp poles of the street lamps are raised and lowered to adjust to a height suitable for maintenance and inspection. However, changing the lifting method of the lamp poles is limited. Generally, electric equipment is required for lifting to meet large-scale maintenance work, but this undoubtedly increases new maintenance and inspection costs. The use of ordinary mechanical methods requires manual processing one by one, which reduces the efficiency of regular maintenance work on street lamps, makes the distribution of labor resources uneven, and prolongs the recovery cycle of the park. Summary of the invention

[0005] The purpose of the present invention is to provide a liftable lamp pole and a lighting street lamp, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A liftable lamp pole, comprising a lamp holder frame, and a lamp holder movably provided with a pole seat, wherein a lifting mechanism for adjusting the height of the lamp holder frame is provided in the pole seat, a screw rod for assembling bevel gears is provided on the lifting mechanism, an adjustment shaft member in the pole seat is movably provided on the lamp holder, and a first gear and a second gear for meshing with the bevel gears are provided in the pole seat; The rod seat is also provided with a positioning plate with an inclined surface, the inclined surface is provided with a vortex spring whose end is used for pressing and fixing the adjusting shaft, and the vortex spring is fixedly provided with a sliding head which is plug-fitted with the second gear; The positioning plate is fixedly mounted with arc-shaped and equidistantly arranged insertion rods, and the adjustment shaft member under positive translation pushes the insertion rod to unlock the rod seat; A square shaft is fixedly sleeved on the adjusting shaft, and a shaft protrusion is arranged at a relative position of the square shaft. When the square shaft is translated in a direction, it cooperates with the first gear and the second gear and is used to form the following two stations: In the first station, the square shaft engages with the first gear, so that the second gear is engaged and rotated by the bevel gear to store force in the vortex spring; At the second station, the square shaft engages with the second gear, and the shaft convexly pulls the first gear to decouple the bevel gear, and the first gear pushes the sliding head and slides with the bevel surface in the closed state, so that the vortex spring is wound and recharged.

[0007] Preferably, an opening section is provided at the end of the screw rod, and the adjustment shaft is plug-fitted with the opening section in a default state.

[0008] Preferably, a round shaft is arranged between the square shaft and the shaft protrusion, and the first gear under the second station moves on the round shaft, and the first gear is horizontally pushed by the adjusting shaft to abut against the side wall of the bevel gear.

[0009] Preferably, the bevel surface is provided with circumferentially arranged clamping plates, and the clamping plates are squeezed by the axis of the vortex spring to fit the side wall of the adjustment shaft.

[0010] Preferably, the angle between the clamp plate and the adjustment shaft is adjustable in the compressed state.

[0011] Preferably, the side wall of the adjustment shaft is provided with equidistantly arranged slot sections, and a clamping member engaged with the slot sections is fixedly mounted on the clamping hoop plate.

[0012] Preferably, the fixing sleeve on the adjusting shaft is provided with an annular protrusion for pushing and fitting the clamping hoop plate.

[0013] Preferably, an arc protrusion is fixedly mounted on the positioning plate, and a movable sleeve on the screw rod is provided with a contact frame sliding in the rod seat. The engaged annular protrusion rotates synchronously with the clamping plate, so that the arc protrusion pushes the contact frame upward to increase the screw rod stroke.

[0014] Preferably, a limiting protrusion embedded between adjacent clamping plates is fixedly mounted on the vortex spring, and the limiting protrusion causes the vortex spring to deform and curl in a direction opposite to the rotation direction of the positioning plate.

[0015] A lighting street lamp comprises any of the above-mentioned liftable lamp poles.

[0016] In the above technical scheme, a liftable lamp pole and lighting street lamp provided by the present invention have the following beneficial effects: by pushing the adjustment shaft into the inside of the pole seat, the rod is unlocked to unlock the pole seat so that the sleeve and the lamp holder frame on the pole seat can be tilted and laid down, and then three or more staff members on site perform hand-supporting processing, so that maintenance or repair work can be carried out quickly and efficiently, and the adjustment shaft is pulled and is in the first working position, and the vortex spring is used to store force and provide resistance under the rotation of the bevel gear, so that the lifting mechanism is in the state of automatically lowering the lamp holder frame to the lowest position, so that the staff can automatically lower the street lamps in turn, so that when there are only one or two staff members on site, they can leave after adjusting the bottom of the street lamp to the automatic state, and use the same automatic lowering process for the next street lamp, so that this method can also adapt To maintain or overhaul street lights over a large area and ensure on-site work efficiency, the adjustment shaft is directly pulled to the second workstation, and the first gear extrusion vortex spring is pre-curled to increase the radial extrusion force on the adjustment shaft toward the axis center, so that the staff will not easily cause problems such as slippage of the workstation when manually rotating the adjustment shaft, thereby reducing manual errors. At the same time, with the combined effect of the vortex spring's pre-charge and rotational charge, the manually lowered lamp holder has greater resistance, and manual operation is easier to control and safer, thus avoiding the lamp holder holder from stalling and causing damage to the lamp or injuring the staff. It can also adapt to the situation where there is only one staff member on site, allowing the staff to handle street light maintenance work one-on-one, with stronger adaptability, more standardized and efficient distribution of labor resource costs, and a shorter park recovery cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the structure of a lighting street lamp and a control room door panel removed provided by an embodiment of the present invention; Figure 2 An exploded schematic diagram of a rod base and a lamp base of a lamp holder frame provided by an embodiment of the present invention; Figure 3 A schematic diagram of a cross-section of a rod base and an upper lifting mechanism thereof from a right side perspective provided in an embodiment of the present invention; Figure 4 A cross-sectional schematic diagram of a rod seat and a partial lifting mechanism provided by an embodiment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of point A; Figure 6 A schematic diagram of the transmission position assembly of the bevel gear, the first gear, the second gear and the positioning plate provided in an embodiment of the present invention; Figure 7 An embodiment of the present invention provides an adjustment shaft and a first gear, a second gear assembly schematic diagram; Figure 8 An exploded schematic diagram of an adjustment shaft and a first gear and a second gear provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the assembly of a vortex spring and its upper clamp plate provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Lamp holder; 11. Control room; 2. Rod seat; 20. Counterweight seat; 21. Transmission cover; 3. Lamp holder frame; 4. Lifting mechanism; 41. Screw; 42. Opening section; 43. Bevel gear; 431. Limiting cylinder; 5. Adjusting shaft; 50. Adjusting bracket; 51. Square shaft; 52. Round shaft; 53. Shaft convex; 54. Slot section; 55. Annular convex; 6. First gear; 7. Second gear; 71. Pushing piece; 8. Positioning plate; 81. Inserting rod; 811. Inserting hole; 82. Arc convex; 821. Contact frame; 9. Vortex spring; 90. Bevel surface; 91. Sliding head; 92. Hoop plate; 93. Clamp; 94. Limiting convex. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-9 As shown, a liftable lamp pole and lighting street lamp, including a lamp holder frame 3, and also including a lamp holder 1 movably provided with a pole seat 2, the pole seat 2 is provided with a lifting mechanism 4 for making the lamp holder frame 3 height adjustable, the lifting mechanism 4 is provided with a screw 41 equipped with a bevel gear 43, the lamp holder 1 is movably provided with an adjustment shaft 5 in the pole seat 2, and the pole seat 2 is provided with a first gear 6 and a second gear 7 for meshing with the bevel gear 43; A positioning plate 8 with an oblique face 90 is also provided in the rod seat 2. A vortex spring 9 whose end is used for pressing and fixing the adjusting shaft 5 is installed in the oblique face 90. A sliding head 91 which is plugged and matched with the second gear 7 is fixedly installed on the vortex spring 9. The positioning plate 8 is fixedly mounted with arc-shaped and equidistantly arranged insertion rods 81, and the adjustment shaft member 5 under positive translation pushes the insertion rods 81 to unlock the rod seat 2; A square shaft 51 is fixedly sleeved on the adjusting shaft 5, and a shaft protrusion 53 is arranged at a relative position of the square shaft 51. When the square shaft 51 is translated in a direction to match the first gear 6 and the second gear 7, the following two positions are formed: In the first station, the square shaft 51 engages with the first gear 6, so that the second gear 7 is meshed and rotated by the bevel gear 43 to store force in the vortex spring 9; At the second station, the square shaft 51 engages with the second gear 7, and the shaft protrusion 53 pulls the first gear 6 to decouple the bevel gear 43, and the first gear 6 pushes the sliding head 91 and slides with the bevel surface 90 in the closed state, so that the vortex spring 9 is wound and recharged.

[0022] Specifically, the lamp holder 1 is installed on a cement base on the ground using bolts and nuts, and a control room 11 is fixedly installed on the side wall of the lamp holder 1, and a door panel is hingedly installed on the control room 11, and the door panel is locked (existing technology, which will not be described here), so that the knob at the end of the adjustment shaft 5 in the control room 11 is protected, and a drainage hole is provided at the bottom of the notch on the lamp holder 1 that accommodates the rotation of the rod seat 2 to prevent rainwater and dirt from seeping into the rod seat 2 and interfering with the operation of parts, and a counterweight seat 20 is fixedly installed at the bottom of the rod seat 2 to increase the stability of the rod seat 2 in a vertical state, and an axis block that rotates on the lamp holder 1 is fixedly installed at the axis center of the semicircular counterweight seat 20 to facilitate the deflection and laying of the rod seat 2.

[0023] Furthermore, a lighting lamp is installed on the lamp holder frame 3, and the lighting lamp and its wiring method are all existing technologies and are not elaborated here. A vertical transmission cover 21 for accommodating the movement of the lifting mechanism 4 is fixedly installed on the rod seat 2, and a cover body is installed on the lower end of the lamp holder frame 3 and is sleeved on the outside of the transmission cover 21, so that the transmission cover 21 and the cover body that are interlaced with each other can provide waterproof and protective functions for the lifting mechanism 4, and the lifting mechanism 4 adopts a traditional threaded lifting method (the screw rod 41 is threadedly connected to the block to lift it, so that the vertical rod on the block pushes the lamp holder frame 3 to move up and down), so that the height adjustment of the lamp holder frame 3 is more convenient.

[0024] Furthermore, an L-shaped connecting frame is installed in the rod seat 2 using bolts and nuts, and a limiting cylinder 431 that rotates on the connecting frame is fixedly installed on the bevel gear 43 to provide a supporting force for the bevel gear 43 to rotate stably.

[0025] Furthermore, the first gear 6 and the second gear 7 (both are bowl-shaped, and the teeth are located at the mouth of the bowl) are provided with square gaps at the axis centers so that the gaps and the square shaft 51 match, and the side length of the square shaft 51 is the same as the diameter of the adjustment shaft 5, so that the adjustment shaft 5 can perform station switching, and the first gear 6, the second gear 7 and the square shaft 51 have the same thickness, but the diameter of the second gear 7 is larger than the diameter of the first gear 6, and both gears are engaged with the bevel gear 43 in the default state.

[0026] Furthermore, the cam 53 is located at the end of the adjusting shaft 5, so that the adjusting shaft 5 at the second station can form a thrust on the first gear 6 through the cam 53 to decouple the bevel gear 43. The rod seat 2 is equipped with an adjusting bracket 50 using bolts and nuts. A tension spring is fixedly installed on the first gear 6, and the tension spring is rotatably set on the adjusting bracket 50, so that the decoupled first gear 6 drives the tension spring to deform, and the second gear 7 is rotatably set on the adjusting bracket 50, and a hole is opened on the adjusting bracket 50 for the adjusting shaft 5 to pass through, and the diameter of the hole is larger than the spacing between the symmetrically arranged cams 53, so that the adjusting bracket 50 does not interfere with the switching between the first station and the second station.

[0027] Furthermore, a circular hole for accommodating the vortex spring 9 is provided on the positioning plate 8, and the bevel surface 90 is an opening of the circular hole, that is, it corresponds to the opening for the sliding head 91 to extend out and move. A through hole is provided on the end face of the second gear 7 for the sliding head 91 to be inserted, and a spring is fixedly installed at the port of the through hole, and a "T"-shaped pushing piece 71 is fixedly installed on the spring, so that in the process of the first gear 6 approaching the second gear 7, the first gear 6 first contacts the pushing piece 71 to compress the spring, and transmits the thrust to the sliding head 91, and at the same time the sliding head 91 does not detach from the through hole, so that the vortex spring 9 can store force.

[0028] Furthermore, the sliding head 91 is located at the end of the outer ring of the vortex spring 9, and the sliding head 91 is arranged perpendicular to the vortex spring 9, and the sliding head 91 has a separate protruding section so that the section can slide with the inverted inclined surface inside the bevel surface 90, and apply pressure toward the axis center to the vortex spring 9, so as to prompt the vortex spring 9 to pre-accumulate force, and the purpose of accumulating force in the vortex spring 9 during the lowering of the lamp holder frame 3 is: the lamp holder frame 3 after maintenance or overhaul can provide lifting assistance through the vortex spring 9 to restore the deformation, reduce the lifting resistance when the lamp holder frame 3 is reset, and shorten the on-site construction period.

[0029] Furthermore, the side wall of the notch on the lamp holder 1 is provided with circumferentially arranged sockets 811, which can enable the deflected pole holder 2 to change the plug-in position of the socket 811 through the plug rod 81 to achieve the folding and locking, thereby increasing the stability of the street lamp during maintenance or inspection in the folded state; a tension spring is fixedly installed on the positioning plate 8, and a circular ring that rotates on the inner wall of the pole holder 2 is fixedly installed on the end of the tension spring, so that under the action of the tension spring, the positioning plate 8 can be adapted to be pushed horizontally by the adjustment shaft 5 to pull the plug rod 81 out of the socket 811 and unlock it, while the side wall of the pole holder 2 is provided with an eyelet for the plug rod 81 to slide, and the end of the plug rod 81 in the unlocked state is in the eyelet, so that the pole holder 2 can quickly reset the plug rod 81 after being folded down, and insert it into the socket 811 with the changed position to achieve re-locking and fixing.

[0030] By pushing the adjusting shaft 5 into the inside of the rod seat 2, the adjusting shaft 5 pushes the positioning plate 8 to move horizontally, and the plug rod 81 is pulled out of the socket 811 on the lamp holder 1. At this time, the plug rod 81 retracted on the side wall of the rod seat 2 completes the unlocking of the rod seat 2, so that the rod seat 2 together with the sleeve and lamp holder frame 3 thereon can be tilted and laid down. With three or more maintenance staff on the site, the laid-down lamp pole can be supported by hand, and manpower is efficiently used to perform maintenance or inspection of the lighting lamp. When the adjusting shaft 5 is pulled out of the rod seat 2 and is in the first working position, the square shaft 51 reaches the vacant position of the axis of the first gear 6 and fits in. There is no transmission between the missing and the adjusting shaft 5, so the second gear 7 meshing with the bevel gear 43 transmits the idling torque to the vortex spring 9 through the sliding head 91, so that the vortex spring 9 begins to store force and provide resistance to the rotation of the bevel gear 43. At this time, the lifting mechanism 4 is in a state of automatically lowering the lamp holder rack 3 until the lifting mechanism 4 retracts the lamp holder rack 3 downward to the lowest position under the action of gravity, and the vortex spring 9 reaches the maximum force storage state. Therefore, the staff can automatically lower the street lamps in turn, so that when there are only one or two staff members on the scene, they can leave after adjusting the bottom of the street lamp to the automatic state, and use the same automatic lowering process for the next street lamp, so that this method can also be applied In order to maintain or overhaul street lamps over a large area and ensure the work efficiency on site, when the adjusting shaft 5 is directly pulled to the second station, the square shaft 51 reaches the vacant part of the axis of the second gear 7 and engages with it, and the adjusting shaft 5 with the translation makes the shaft protrusion 53 contact the first gear 6, and the first gear 6 is translated to be close to the second gear 7, so that the first gear 6 is decoupled from the bevel gear 43, and the end face of the first gear 6 is squeezed by the pushing member 71, so that the thrust acts on the sliding head 91 and slides with the inner wall of the bevel surface 90, so that the vortex spring 9 is squeezed and pre-curled, so as to increase the force transmitted by the vortex spring 9 to its axis, so that the force acts on the side wall of the adjusting shaft 5, and the purpose is to increase the adjustment axis The radial extrusion pressure of component 5 toward the axis makes it difficult for the adjustment shaft component 5 to have axial displacement, and it is not easy for the staff to cause problems such as slippage of the work station when manually rotating the adjustment shaft component 5, thereby reducing manual errors. At the same time, under the combined effect of the pre-storage and rotational storage of the vortex spring 9, the resistance of the manually lowered lamp holder frame 3 is greater, and the manual operation is easier to control and safer, thereby avoiding the situation where the lamp holder frame 3 stalls when being lowered and causes damage to the lighting lamp or injuring the staff, etc. It can also adapt to the situation where there is only one staff member on site, so that the staff can handle the street lamp maintenance work one-on-one, with stronger adaptability, more standardized and efficient distribution of labor resource costs, and a shorter park recovery cycle.

[0031] As an embodiment further provided by the present invention, an opening section 42 is provided at the end of the screw rod 41 , and the adjustment shaft 5 is plug-fitted with the opening section 42 in a default state.

[0032] Specifically, the opening section 42 is located at a position on the screw rod 41 where no thread is formed, specifically, a columnar gap formed at the lower end of the screw rod 41. At the same time, the gap can be inserted by the end of the adjusting shaft 5 to achieve the function of locking the rotation of the screw rod 41. A tension spring is fixedly installed between the opening section 42 and the inner wall of the rod seat 2.

[0033] By placing the end of the adjustment shaft 5 in the default state horizontally in the gap of the opening section 42, the screw 41 cannot rotate, that is, the lamp holder frame 3 lifted to the predetermined position is locked and fixed, so that the locking method is stable and efficient, and the opening section 42 is unlocked during the process of pulling the adjustment shaft 5. Therefore, when the lamp holder frame 3 is lowered, the lifting mechanism 4 will not fail to work. When the lamp holder frame 3 is laid down, the adjustment shaft 5 that continues to go deeper can keep the screw 41 locked to avoid the lamp holder frame 3 from loosening during the laying process.

[0034] As another embodiment further provided by the present invention, a round shaft 52 is arranged between the square shaft 51 and the shaft protrusion 53 , and the first gear 6 under the second station moves on the round shaft 52 , and is horizontally pushed by the adjustment shaft 5 to abut against the side wall of the bevel gear 43 .

[0035] Specifically, the circular shaft 52 is one section of the adjustment shaft 5 so that the first gear 6 reaching this point has no engaging drive, so that the first gear 6 is in a clamped rotatable state, which facilitates the edge teeth of the first gear 6 to contact the teeth of the bevel gear 43 .

[0036] The adjustment shaft 5 may be axially offset due to an error in the manual operation. Since the second gear 7 is rotationally connected to the adjustment bracket 50, the offset adjustment shaft 5 can only be translated toward the inside of the rod seat 2, reducing the problem of station slippage caused by the translation of the adjustment shaft 5. In addition, due to the existence of the push piece 71, there is an offset space for the adjustment shaft 5 between the first gear 6 and the second gear 7, so that the square shaft 51 of the second station remains engaged with the second gear 7, ensuring the stability of the station use state. The shaft protrusion 53 under translation causes the first gear 6 to reset through the tension spring on the adjustment bracket 50, but the first gear 6 is still not engaged with the square shaft 51, and is accompanied by As the spring on the pushing member 71 keeps the first gear 6 clamped, the first gear 6 is in a circumferentially fixed state, and the edge teeth of the first gear 6 suddenly contact the teeth of the bevel teeth 43, but the teeth of the two are not meshing. Therefore, the first gear 6 in the clamped and fixed state will resist and brake the bevel teeth 43, so that the rotating bevel teeth 43 are decelerated by the first gear 6. The purpose is to slow down the lowering of the lamp holder frame 3 when an offset force occurs during manual operation by the staff, avoid switching the work position of the adjustment shaft 5 due to axial offset, and cause the lowering rate of the lamp holder frame 3 to change, resulting in danger and damage to the lamp, thereby realizing the protection function of the lamp beads in the lamp.

[0037] As another embodiment further provided by the present invention, a circumferentially arranged clamping plate 92 is provided in the bevel surface 90 , and the clamping plate 92 is squeezed by the axis of the vortex spring 9 to fit the side wall of the adjustment shaft 5 .

[0038] Specifically, the arc-shaped clamping plate 92 is specifically an elastic metal plate, and a plurality of clamping plates 92 are squeezed by the elastic metal of the inner ring of the spiral spring 9 so that the clamping plates 92 can approach the side wall of the adjustment shaft 5.

[0039] During the force storage process, the vortex spring 9 transmits force to the end of its inner circle, and the inner circle of the vortex spring 9 applies pressure to the circumferentially arranged clamping plate 92, and the inner arc surface of the clamping plate 92 is in contact with the side wall of the adjustment shaft 5. The purpose is to use the vortex spring 9 to form axial compression on the adjustment shaft 5 during the force storage process, so that the adjustment shaft 5 is not prone to axial deviation, so that the work station can be stable during both automatic and manual operations, and the safety of the lamp holder frame 3 is increased during the lowering process.

[0040] As another embodiment further provided by the present invention, the angle between the clamping plate 92 and the adjusting shaft 5 is adjustable under pressure.

[0041] Specifically, the end of the clamping plate 92 is hinged to the inner wall of the through hole at the center of the positioning plate 8 for the adjusting shaft 5 to pass through, and a torsion spring is installed at the hinge position of the clamping plate 92 (the installation method is the existing technology and is not described here) so that the unpressurized clamping plate 92 can release the clamping of the adjusting shaft 5.

[0042] Furthermore, in a default state, the plurality of clamping hoop pieces 92 are combined in a table shape, with the larger table-shaped end facing the knob of the adjustment shaft 5 , and the diameter of the smaller table-shaped end being the same as the diameter of the adjustment shaft 5 .

[0043] The vortex spring 9 is in the first working position and stores force. At this time, the inner ring of the vortex spring 9 applies pressure to the clamping plate 92 and is used to clamp the adjusting shaft 5. The vortex spring 9 in the second working position has two types of pre-curling and working force storage. Therefore, the clamping plate 92 is subjected to more extrusion force, which makes the angle between the clamping plate 92 and the adjusting shaft 5 smaller and the contact surface more, thereby increasing the limiting effect on the adjusting shaft 5, reducing the axial deviation of the adjusting shaft 5 during rotation, and making the manual operation of lowering the lamp holder frame 3 more accurate and safe.

[0044] As another embodiment further provided by the present invention, the side wall of the adjusting shaft 5 is provided with equidistantly arranged clamping groove sections 54 , and a clamping member 93 engaged with the clamping groove sections 54 is fixedly mounted on the clamping hoop 92 .

[0045] Specifically, there are three slot segments 54 , corresponding to the first station, the second station and the laying down station respectively, and the annular slot segment 54 can make the clamping member 93 therein slide, so as to facilitate the adjustment of the shaft member 5 for rotation, and the clamping member 93 is located on the inner side of the arc surface of the clamping hoop plate 92 .

[0046] Furthermore, in the default state, the clamp 93 abuts against the inner wall of the slot section 54, and in the process of pushing and pulling the adjustment shaft 5 to switch the working position, the clamp 93 moves out from the end of the slot section 54 and slides on the side wall of the adjustment shaft 5, accompanied by the bending deformation and reset deformation of the clamping hoop 92, so that the clamp 93 will not interfere with the movement of the adjustment shaft 5.

[0047] By pushing or pulling the adjustment shaft 5, the corresponding slot section 54 on it reaches the position of the clamp 93, and when the clamp 92 suddenly recovers its deformation, the clamp 93 makes a sound when it hits the slot section 54, which is used to assist in informing the staff of the workstation switching situation. At the same time, the adjustment shaft 5 can be labeled or engraved with text on its side wall (the marking method is the existing technology and is not described here), and the main visual judgment is based on the extended or retracted position of the adjustment shaft 5 in the control room 11, so that the staff can adjust the workstation according to the on-site situation, and the adjustment shaft 5 at the current workstation can be limited by the clamp 93, so that the adjustment shaft 5 can be stably maintained in the rotation function, effectively reducing the axial offset problem that occurs when the adjustment shaft 5 is working.

[0048] As another embodiment further provided by the present invention, a fixed sleeve on the adjusting shaft 5 is provided with an annular protrusion 55 for pushing and fitting the clamping hoop plate 92 .

[0049] Specifically, one end of the annular protrusion 55 is a plane, and the other end is an inclined surface. One end of the plane is used to abut against the inner wall of the rod seat 2 to prevent the adjusting shaft 5 from being pulled out of the rod seat 2, thereby protecting the adjusting shaft 5, while one end of the inclined surface is used to abut against multiple clamping plates 92 in an open state, so as to push the positioning plate 8 to move and unlock the rod seat 2.

[0050] By pushing and adjusting the shaft 5, the inclined surface on the annular protrusion 55 is made to contact the inner arc surface of the ends of multiple clamping plates 92, and the annular protrusion 55 and the deformed clamping plates 92 are tightly connected during the embedding process. At this time, continuing to apply thrust can adjust the position of the positioning plate 8, making it convenient for the insertion rod 81 to unlock the rod seat 2, and in this process, the clamping member 93 can still be clamped and assembled to one of the clamping slot sections 54, so as to provide further connection assistance to the tightly connected annular protrusion 55.

[0051] As another embodiment further provided by the present invention, an arc protrusion 82 is fixedly installed on the positioning plate 8, and a movable sleeve is provided on the screw rod 41 with a contact frame 821 sliding in the rod seat 2. The engaged annular protrusion 55 rotates synchronously with the clamping hoop plate 92, so that the arc protrusion 82 pushes the contact frame 821 to move upward to increase the stroke of the screw rod 41.

[0052] Specifically, the arc protrusion 82 is located at the upper end of the positioning plate 8, and the arc of the arc protrusion 82 gradually increases. After the positioning plate 8 is rotated, the insertion rod 81 and the circumferentially arranged insertion holes 811 can still be plugged in and used.

[0053] Furthermore, the contact frame 821 is used to provide support for the rotation position of the screw rod 41, and the contact frame 821 vertically sliding in the rod seat 2 can also increase the stroke provided by the screw rod 41 to the lifting mechanism 4, so that the lighting height of the lamp holder frame 3 is improved.

[0054] Furthermore, symmetrically arranged slide bars are fixedly mounted on the screw rod 41 , and grooves for the slide bars to slide are provided on the inner walls of the limit cylinder 431 and the bevel gear 43 , so that the screw rod 41 can still rotate through the slide bars after the stroke is increased, thereby ensuring the power transmission of the bevel gear 43 .

[0055] After the maintenance or overhaul of the street lamp is completed and with manual support, the annular protrusion 55 and the clamping plate 92 are again connected in an interlocking state, and the adjusting shaft 5 is rotated alone, so that the adjusting shaft 5 drives the positioning plate 8 to rotate under the action of friction, so that the position of the original plug-in hole 811 of the plug rod 81 is changed, so that the gradually increasing curvature of the arc protrusion 82 is used to lift and move the contact frame 821, so that the stroke of the screw rod 41 will increase, so that the lighting range of the street lamp is increased, and the street lamp can also adapt to the light source blocking problem caused by the growth of vegetation in the park.

[0056] As another embodiment further provided by the present invention, a limiting protrusion 94 embedded between adjacent clamping plates 92 is fixedly mounted on the vortex spring 9 , and the limiting protrusion 94 causes the vortex spring 9 to deform and curl in a direction opposite to the rotation direction of the positioning plate 8 .

[0057] Specifically, the limiting protrusion 94 is located at the end of the inner circle of the vortex spring 9. On the one hand, it can fix one end of the vortex spring 9 to facilitate the storage of force in the vortex spring 9. On the other hand, it can ensure that the force exerted on the vortex spring 9 is stably transmitted to the clamping plate 92 for limiting work.

[0058] Furthermore, the spiral opening direction of the vortex spring 9 is the same as the rotation direction of the positioning plate 8 , that is, when the positioning plate 8 rotates, the vortex spring 9 can gradually relax, which is used to increase the force storage range of the vortex spring 9 .

[0059] By limiting the limiting protrusion 94 between the two clamping plates 92, and then cooperating with the opened clamping plate 92 to generate a force radially away from the axis, and making the force act on the limiting protrusion 94 to achieve the function of compaction and fixation, the inner circle of the vortex spring 9 is tightened. At the same time, when the positioning plate 8 rotates, the vortex spring 9 relaxes toward its opening direction. The purpose is to increase the force storage capacity of the vortex spring 9, so that the vortex spring 9 and the screw 41 with increased stroke are adapted, so that the vortex spring 9 can fully relieve the lowering of the protective lamp holder frame 3 and ensure the safety during maintenance or inspection of the street lamp.

[0060] Working principle: by pushing the adjustment shaft 5 into the rod seat 2, the adjustment shaft 5 pushes the positioning plate 8 to move horizontally, and the plug rod 81 is pulled out of the socket 811 on the lamp holder 1. At this time, the plug rod 81 retracted on the side wall of the rod seat 2 completes the unlocking of the rod seat 2, so that the rod seat 2 together with the sleeve and the lamp holder frame 3 thereon can be tilted and tilted. When the adjustment shaft 5 is pulled toward the outside of the rod seat 2 and is in the first working position, the square shaft 51 reaches the vacant part of the axis of the first gear 6 and fits in. At this time, the second gear 7 meshing with the bevel gear 43 transmits the idling torque to the vortex spring 9 through the sliding head 91, so that the vortex spring 9 starts to accumulate force and provides resistance to the rotation of the bevel gear 43. At this time, the lifting mechanism 4 is in a state of automatically lowering the lamp holder frame 3 until the lifting mechanism 4 retracts the lamp holder frame 3 downward to the lowest position under the action of gravity, and the vortex spring 9 reaches the maximum force storage state, so the staff The street lamps can be automatically lowered one by one, and when the adjusting shaft 5 is directly pulled to the second station, the square shaft 51 reaches the vacant part of the axis of the second gear 7 and fits in, and the adjusting shaft 5 with the translation makes the axial protrusion 53 contact the first gear 6, and carries the first gear 6 to translate close to the second gear 7, so that the first gear 6 is decoupled from the bevel gear 43, and the end face of the first gear 6 is squeezed by the pushing piece 71, so that the thrust acts on the sliding head 91 and slides with the inner wall of the bevel surface 90, so that the vortex spring 9 is squeezed and pre-curled, so as to increase the force transmitted by the vortex spring 9 to its axis, so that the force acts on the side wall of the adjusting shaft 5, the purpose is to increase the radial squeezing force of the adjusting shaft 5 toward the axis, so that the adjusting shaft 5 is not easy to have axial deviation, and at the same time, under the joint action of the pre-storage force and the rotational storage force of the vortex spring 9, the resistance of the manually lowered lamp holder frame 3 is greater, and the manual operation is easier to control.

[0061] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A liftable lamp pole, comprising a lamp holder frame (3), characterized in that: Also included is a lamp holder (1) movably provided with a rod seat (2), wherein the rod seat (2) is provided with a lifting mechanism (4) for making the height of the lamp holder frame (3) adjustable, wherein the lifting mechanism (4) is provided with a screw rod (41) for assembling a bevel gear (43), wherein the lamp holder (1) is movably provided with an adjustment shaft member (5) in the rod seat (2), wherein the rod seat (2) is provided with a first gear (6) and a second gear (7) for meshing with the bevel gear (43); The rod seat (2) is also provided with a positioning plate (8) having an oblique face (90), the oblique face (90) having a vortex spring (9) whose end is used to press and fix the adjustment shaft member (5), and the vortex spring (9) is fixedly mounted with a sliding head (91) that is plug-fitted with the second gear (7); Insertion rods (81) arranged equidistantly in an arc shape are fixedly mounted on the positioning plate (8), and the adjustment shaft member (5) under positive translation pushes the insertion rod (81) to unlock the rod seat (2); A square shaft (51) is fixedly sleeved on the adjusting shaft (5), and a shaft protrusion (53) is arranged at a relative position of the square shaft (51). When the square shaft (51) is translated in different directions to match the first gear (6) and the second gear (7), the following two working positions are formed: At the first workstation, the square shaft (51) engages with the first gear (6), causing the second gear (7) to mesh with the bevel gear (43) and rotate to store force in the vortex spring (9); At the second workstation, the square shaft (51) engages with the second gear (7), and causes the shaft protrusion (53) to pull the first gear (6) to decouple the bevel gear (43), and in a closed state, the first gear (6) pushes against the sliding head (91) to slide with the bevel surface (90), so that the vortex spring (9) is wound up and recharged.

2. The liftable lamp pole according to claim 1, characterized in that: An opening section (42) is provided at the end of the screw rod (41), and the adjustment shaft (5) is plug-fitted with the opening section (42) in a default state.

3. The liftable lamp pole according to claim 1, characterized in that: A round shaft (52) is arranged between the square shaft (51) and the shaft protrusion (53), and the first gear (6) under the second station moves on the round shaft (52), and the first gear (6) is pushed horizontally by the adjustment shaft (5) to abut against the side wall of the bevel gear (43).

4. The liftable lamp pole according to claim 2, characterized in that: The beveled surface (90) is provided with circumferentially arranged clamping hoop pieces (92), and the clamping hoop pieces (92) are squeezed by the axis of the vortex spring (9) to fit the side wall of the adjustment shaft (5).

5. The liftable lamp pole according to claim 4, characterized in that: In a compressed state, the angle between the clamping hoop plate (92) and the adjusting shaft member (5) is adjustable.

6. The liftable lamp pole according to claim 5, characterized in that: The side wall of the adjustment shaft member (5) is provided with slot sections (54) arranged at equal intervals, and a clamping member (93) engaged with the slot sections (54) is fixedly mounted on the clamping hoop plate (92).

7. The liftable lamp pole according to claim 6, characterized in that: The fixing sleeve on the adjusting shaft member (5) is provided with an annular protrusion (55) for pushing and fitting against the clamping hoop plate (92).

8. The liftable lamp pole according to claim 7, characterized in that: The positioning plate (8) is fixedly mounted with an arc protrusion (82), and the screw rod (41) is movably sleeved with a contact frame (821) that slides in the rod seat (2). The engaged annular protrusion (55) and the hoop plate (92) rotate synchronously, so that the arc protrusion (82) pushes the contact frame (821) upward to increase the stroke of the screw rod (41).

9. The liftable lamp pole according to claim 8, characterized in that: A limiting protrusion (94) embedded between adjacent hoop plates (92) is fixedly mounted on the vortex spring (9), and the limiting protrusion (94) causes the vortex spring (9) to deform and curl in a direction opposite to the rotation direction of the positioning plate (8).

10. A street lamp, characterized in that: A liftable lamp pole comprising any one of claims 1 to 9.

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