CN109539202B

CN109539202B - Street lamp pole convenient to loading and unloading

Info

Publication number: CN109539202B
Application number: CN201910025826.6A
Authority: CN
Inventors: 李世艳; 李朝宾; 张涛
Original assignee: Jiangsu Ganghua Landscape Lighting Co ltd
Current assignee: Jiangsu Ganghua Landscape Lighting Co.,Ltd.
Priority date: 2018-07-27
Filing date: 2019-01-11
Publication date: 2021-09-24
Anticipated expiration: 2039-01-11
Also published as: CN108844044A; CN109539202A

Abstract

The invention belongs to the technical field of street lamp poles, and particularly relates to a street lamp pole convenient to assemble and disassemble, which comprises a bottom pole, a driving sleeve, a middle pole, a top pole, a street lamp, a first driving mechanism and a second driving mechanism, wherein when the street lamp on the lamp pole needs to be replaced, the driving shaft at the lowest side is driven to rotate by an external driving mechanism; the driving shaft can drive the rest five driving shafts to rotate through corresponding universal joints; the driving shaft rotates to enable the six driving sleeves to move downwards along the lamp pole; the driving sleeve moves downwards to drive the corresponding rack to move downwards; the rack moves downwards to enable the first gear meshed with the rack to rotate; the first gear rotates to drive the telescopic rotating shaft to rotate; the rotation of the telescopic rotating shaft can make the corresponding plate spring exert force; when the driving sleeve moves to the lowest side, the lamp post can be folded under the action of the plate spring; the street lamp is moved to the lower side, and people can replace the street lamp conveniently.

Description

Street lamp pole convenient to loading and unloading

Technical Field

The invention belongs to the technical field of street lamp poles, and particularly relates to a street lamp pole convenient to assemble and disassemble.

Background

The street lamp pole is mainly suitable for roads, districts, scenic spots and residential areas. Street lamp pole, as the name implies, is exactly the member of installation street lamp, is called the lamp pole, can divide into: iron light pole, stainless steel light pole, aluminum alloy light pole. At present, most lamp poles are integrated, when the lamp poles are installed or replaced, the lamp poles are often required to be transported to a designated place through a long truck or pulled away through the long truck, and in the transportation process, the lamp poles are too long and are not easily placed in a transportation box of the long truck, so that inconvenience is brought to transportation; therefore, it is necessary to design a foldable lamp pole for transportation.

The invention designs a street lamp pole convenient to assemble and disassemble, and solves the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a street lamp pole convenient to assemble and disassemble, which is realized by adopting the following technical scheme.

The utility model provides a light pole convenient to loading and unloading, its characterized in that: the street lamp comprises a bottom rod, a driving sleeve, a middle rod, a universal joint, a driving shaft, a top rod, a street lamp, a first driving mechanism, a second driving mechanism, a fixed support, a driving gear, a first square notch, a connecting support lug, a second square notch, a circular shaft hole, a first mounting groove, a fixed support lug, a third square notch, a second mounting groove, a circular hole, a fourth square notch, a driving rotating shaft and an annular groove, wherein the upper end of the bottom rod is provided with two symmetrical fixed support lugs, and the two fixed support lugs are symmetrically provided with a circular hole; the upper end surface of the bottom rod is provided with a second mounting groove, the upper end surface of the bottom rod is provided with a fourth square notch communicated with the outer circular surface, and the upper end of the fourth square notch is communicated with the second mounting groove; the outer circular surface of the upper end of the bottom rod is provided with an external thread; the upper end of the middle rod is provided with two symmetrical fixed lugs, and the two fixed lugs are symmetrically provided with a circular shaft hole; the upper end surface of the middle rod is provided with a first mounting groove, the upper end surface of the middle rod is provided with a second square notch communicated with the outer circular surface, and the upper end of the second square notch is communicated with the second mounting groove; the lower end surface of the middle rod is provided with a third square notch communicated with the outer circular surface, and the third square notch and the second square notch are positioned in the same direction in the circumferential direction of the middle rod; the lower end of the middle rod is symmetrically provided with two connecting lugs, and the two connecting lugs are respectively positioned at two sides of the third square notch; external threads are arranged on the outer circular surfaces of the upper end and the lower end of the middle rod; the lower end surface of the ejector rod is provided with a first square notch communicated with the outer circular surface; the lower end of the ejector rod is symmetrically provided with two connecting lugs, and the two connecting lugs are respectively positioned on two sides of the first square notch; the outer circular surface of the lower end of the mandril is provided with an external thread; the upper end of the bottom rod is sequentially provided with five middle rods, the lower end of the middle rod connected with the bottom rod is matched and connected with the upper end of the bottom rod through corresponding fixed lugs and connecting lugs, and the corresponding fixed lugs and the connecting lugs are connected through a driving rotating shaft; two adjacent middle rods are connected in a matching way through a connecting lug at the lower end of the middle rod and a fixed lug of the middle rod positioned at the lower side of the middle rod, and the corresponding fixed lugs and the connecting lugs are connected through a driving rotating shaft; the ejector rods are arranged on the upper sides of the five middle rods; the lower end of the ejector rod is connected with the fixed lug on the middle lug on the uppermost side in a matching way through the connecting lug on the ejector rod, and the corresponding fixed lug is connected with the connecting lug through a driving rotating shaft; the street lamp is arranged at the upper end of the ejector rod; two adjacent middle rods in the three middle rods in the middle of the five middle rods are respectively provided with a first driving mechanism at the connection position; a second driving mechanism is arranged at the joint of two middle rods positioned at the lower side of the five middle rods; a second driving mechanism is arranged at the joint of one middle rod positioned at the lowest side of the five middle rods and the bottom rod; a second driving mechanism is arranged at the joint of the two middle rods positioned at the upper side of the five middle rods; a second driving mechanism is arranged at the joint of the uppermost intermediate rod and the top rod in the five intermediate rods; two annular grooves are symmetrically formed in the upper part and the lower part of the inner circular surface of the driving sleeve; the inner circular surface of the driving sleeve is provided with internal threads; a plurality of teeth are uniformly arranged on the outer circular surface of the driving sleeve in the circumferential direction, and the upper end and the lower end of each tooth are respectively flush with the upper end and the lower end of the driving sleeve; the six driving sleeves are respectively arranged on the outer circular surface of the lamp post consisting of the bottom rod, the five middle rods and the top rod; the driving sleeve positioned at the lowest side in the six driving sleeves is matched with the external thread on the bottom rod and the external thread on the middle rod adjacent to the bottom rod through the internal thread on the driving sleeve; the driving sleeve positioned at the uppermost side of the six driving sleeves is matched with the external thread on the ejector rod and the external thread on the intermediate rod adjacent to the ejector rod through the internal thread on the driving sleeve; four driving sleeves positioned in the middle of the six driving sleeves are correspondingly matched with external threads on three middle rods positioned in the middle of the five middle rods through internal threads on the four driving sleeves; the six driving shafts are connected through universal joints in sequence; the six driving shafts are respectively arranged on a lamp post consisting of the bottom rod, the five middle rods and the top rod through a fixed support and are positioned on one side of the lamp post; six universal joints mounted on the six driving shafts are respectively matched with six driving rotating shafts mounted on a lamp post consisting of the bottom rod, the five middle rods and the top rod in a one-to-one correspondence mode, and the centers of the six universal joints are respectively positioned on extension lines of the axes of the corresponding driving rotating shafts; the six driving gears are respectively arranged on the six driving shafts; the six driving gears are respectively meshed with the teeth on the six driving sleeves.

The second driving mechanism comprises a first gear, a second gear, a third gear, a plate spring, a telescopic rotating shaft, a fourth gear, a gear shaft, a rack, an annular guide block, a connecting plate, a fixed shaft sleeve, a trigger sleeve, a circular groove, a first guide block, a second guide groove, an internal thread sleeve, a second guide block and an external thread sleeve, wherein the third gear is arranged on the corresponding driving rotating shaft; one end of the gear shaft is arranged in a first mounting groove formed on the corresponding intermediate rod; the fourth gear is arranged on the gear shaft; the fourth gear is meshed with the third gear; the telescopic rotating shaft consists of a telescopic outer sleeve, a telescopic inner rod and a first spring, wherein one end of the telescopic inner rod is arranged in the telescopic outer sleeve, and the first spring is arranged between one end of the telescopic inner rod, which is positioned in the telescopic outer sleeve, and the telescopic outer sleeve; one end of the first spring is arranged on the telescopic inner rod, and the other end of the first spring is arranged on the telescopic outer sleeve; one end of the telescopic inner rod, which is far away from the telescopic outer rod, is provided with an external thread sleeve; one end of the telescopic outer sleeve, which is not provided with the telescopic inner rod, is arranged in a first mounting groove formed in the corresponding middle rod; the first gear is arranged on the telescopic rotating shaft through a bearing; two second guide grooves are uniformly formed in the circumferential direction of the outer circular surface at one end of the trigger sleeve, and two second guide blocks are uniformly arranged in the circumferential direction of the outer circular surface at the other end of the trigger sleeve; an internal thread sleeve is arranged on the inner circular surface of one end of the trigger sleeve, which is provided with the second guide block; the trigger sleeve is arranged on the telescopic rotating shaft through the matching of the internal thread sleeve and the external thread sleeve on the telescopic rotating shaft; two first guide blocks are uniformly arranged on the inner circular surface of the second gear in the circumferential direction; the second gear is arranged on the trigger sleeve through the matching of the two first guide blocks and the two second guide grooves; the second gear is meshed with the fourth gear; a plate spring is arranged between the second gear and the first gear, one end of the plate spring is arranged on the first gear, and the other end of the plate spring is arranged on the second gear; two first guide grooves are uniformly formed in the circumferential direction on the inner circular surface at one end of the fixed shaft sleeve; the inner circle surface at the other end of the fixed shaft sleeve is provided with a circular groove; the inner circular surface of the circular groove is flush with the bottom end of the first guide groove; one end of the fixed shaft sleeve, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed in the corresponding middle rod; the second guide block on the trigger sleeve is matched with the first guide groove on the fixed shaft sleeve; the two annular guide blocks are respectively arranged in two annular grooves formed on the corresponding driving sleeves; two ends of the rack are respectively arranged on the two corresponding annular guide blocks through a connecting plate; the racks are meshed with the corresponding first gears.

The first drive mechanism is similar to the second drive mechanism except that the fourth gear and gear shaft are not provided in the first drive mechanism; the third gear is directly meshed with the second gear; the first driving mechanism is arranged between two middle rods positioned at the lowest side in the five middle rods, and one end, which is not provided with the telescopic inner rod, of the telescopic outer sleeve is arranged in a first mounting groove formed in the corresponding middle rod; one end of the fixed shaft sleeve, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed in the corresponding middle rod;

the first driving mechanism is arranged between the bottom rod and one of the five middle rods which is positioned at the lowest side, and one end of the telescopic outer sleeve which is not provided with the telescopic inner rod is arranged in a second mounting groove formed in the bottom rod; one end of the fixed shaft sleeve, which is provided with a circular groove, is fixedly arranged in a second mounting groove formed in the bottom rod; the first driving mechanism is arranged between two uppermost intermediate rods in the five intermediate rods, and one end, which is not provided with the telescopic inner rod, of the telescopic outer sleeve of the first driving mechanism is arranged in a first mounting groove formed in the corresponding intermediate rod; one end of the fixed shaft sleeve of the first driving mechanism, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed on the corresponding intermediate rod;

the first driving mechanism is arranged between the top rod and one of the five middle rods which is positioned at the uppermost side, and one end of the telescopic outer sleeve which is not provided with the telescopic inner rod is arranged in a first mounting groove which is formed in the corresponding middle rod; one end of the fixed shaft sleeve of the first driving mechanism, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed on the corresponding intermediate rod.

The two ends of the driving rotating shaft arranged between the bottom rod and the middle rod connected with the bottom rod are respectively arranged in the circular holes formed in the bottom rod; two ends of a driving rotating shaft arranged between the top rod and a middle rod connected with the top rod are respectively arranged in a circular shaft hole formed in the middle rod; two ends of the driving rotating shaft arranged between two adjacent intermediate rods are respectively arranged in the circular shaft holes arranged on the corresponding intermediate rods.

The connecting plate on the upper side of the two connecting plates for mounting the rack, which are arranged between the bottom rod and the middle rod connected with the bottom rod, is matched with the third square notch formed on the corresponding middle rod, and the connecting plate on the lower side is matched with the fourth square notch formed on the bottom rod; the connecting plate on the upper side of the two connecting plates for mounting the rack, which are arranged between the ejector rod and the middle rod connected with the ejector rod, is matched with the first square notch formed on the ejector rod, and the connecting plate on the lower side of the two connecting plates is matched with the second square notch formed on the corresponding middle rod; the connecting plate on the upper side in the two connecting plates for installing the rack between the two adjacent middle rods is matched with the third square notch formed on the middle rod on the upper side in the two adjacent middle rods, and the connecting plate on the lower side is matched with the second square notch formed on the middle rod on the lower side in the two adjacent middle rods.

Three of the five middle rods are short rods; wherein the middle rod connected with the bottom rod is a short rod; the middle rod connected with the top rod is a short rod; the intermediate bar between the remaining two of the five intermediate bars is a short bar.

The swing angle of the bottom rod and the middle rods connected with the bottom rod is 90 degrees, the swing angle of two adjacent middle rods is 90 degrees, and the swing angle between the top rod and the middle rods connected with the top rod is 90 degrees.

As a further improvement of the present technology, the drive shaft located at the lowermost side is driven by an external drive mechanism.

As a further improvement of the technology, when the lamp post is in a vertical state, the internal thread sleeve is positioned at one end of the corresponding external thread sleeve close to the telescopic external rod; the first spring is in the shortest state; the second gear is close to the second guide block on the trigger sleeve.

As a further improvement of the technology, when the lamp post is in a vertical state, the lowest ends of the six driving gears are just flush with the lowest ends of the corresponding driving sleeves.

As a further improvement of the present technology, the first spring is an extension spring.

When the driving shaft at the lowest side rotates, the driving shaft can drive the remaining five driving shafts to rotate through the corresponding universal joints; the driving shaft rotates to drive the driving gear arranged on the driving shaft to rotate; the driving gear rotates to drive the corresponding driving sleeve meshed with the driving gear to rotate; the driving sleeve positioned at the lowest side in the six driving sleeves is matched with the external thread on the bottom rod and the external thread on the middle rod adjacent to the bottom rod through the internal thread on the driving sleeve; the driving sleeve positioned at the uppermost side of the six driving sleeves is matched with the external thread on the ejector rod and the external thread on the intermediate rod adjacent to the ejector rod through the internal thread on the driving sleeve; four driving sleeves positioned in the middle of the six driving sleeves are correspondingly matched with external threads on three middle rods positioned in the middle of the five middle rods through internal threads on the four driving sleeves; therefore, when the lamp post composed of the bottom rod, the five middle rods and the top rod is in a static state; the six driving sleeves can move along the lamp pole under the action of corresponding thread matching when rotating; the universal joint arranged among the six driving shafts has the function that in the folding process of the lamp post, the universal joint ensures that the six driving shafts can simultaneously transmit torsion in the folding process of the lamp post, so that the six driving shafts are always in a rotating state in the folding process; meanwhile, after the folding is finished, if the lamp post is required to be erected again, the driving shaft positioned at the lowest side is driven to rotate reversely; in this state, the universal joint ensures that the drive shaft at the lowest side can smoothly transmit torque to the remaining five drive shafts; rotating the remaining five drive shafts; and then drive six drive gears and rotate for six drive gear play the drive effect to six drive covers. The centers of six universal joints designed by the invention are respectively positioned on extension lines of the axes of the corresponding driving rotating shafts; the folding axes of two adjacent driving shafts are ensured to be collinear with the folding axis of the corresponding folding position on the lamp post in the process that the driving shafts are folded along with the lamp post; the interference between two adjacent driving shafts is prevented during the folding process of the driving shafts.

For the second driving mechanism, when the lamp post is in a vertical state and the driving sleeve corresponding to the lamp post moves downwards, the driving sleeve can drive the two connecting plates arranged on the driving sleeve to move downwards along the corresponding second square notch and the corresponding third square notch through the two annular guide blocks; the two connecting plates move to drive the racks arranged on the connecting plates to move downwards; the rack moves downwards to enable the first gear meshed with the rack to rotate; the first gear rotates to drive the telescopic rotating shaft to rotate; in this state, one end of the fixed shaft sleeve is fixed in a static state, and the trigger sleeve is matched with a first guide groove formed in the fixed sleeve through a second guide block on the trigger sleeve; the trigger sleeve is in a static state in the rotating direction through the first guide groove and the second guide block; in this state, when the telescopic rotating shaft rotates, the telescopic rotating shaft can enable the trigger sleeve to move to one end of the fixed sleeve, which is provided with the circular groove, along the first guide groove through the threaded matching of the external thread sleeve arranged on the telescopic rotating shaft and the internal thread sleeve arranged on the trigger sleeve; in the invention, a second gear is arranged on a trigger sleeve through the matching of two first guide blocks and two second guide grooves; when the lamp post is in a vertical state, the second gear is close to the second guide block on the trigger sleeve; a plate spring is arranged between the first gear and the corresponding second gear; the first gear is arranged on the telescopic rotating shaft through a bearing, namely the first gear cannot move along the telescopic rotating shaft; under the action of the pulling of the plate spring, the first gear has a limiting effect on the second gear; the second gear is not influenced in the moving process of the trigger sleeve, so that the second gear moves along with the trigger sleeve; the first guide block and the second guide groove are used for preventing the trigger sleeve from interfering with the second gear in the moving process; meanwhile, when the second gear rotates, the second gear can drive the trigger sleeve to rotate through the first guide block and the second guide groove; in the invention, when the lamp post is in a vertical state, the internal thread sleeve arranged on the trigger sleeve is positioned at one end, close to the telescopic outer rod, of the external thread sleeve arranged on the corresponding telescopic rotating shaft; the first spring is in the shortest state; in this state, when the telescopic rotating shaft rotates, the trigger sleeve is in a static state in the rotating direction under the action of the fixed sleeve, and the trigger sleeve can extrude the external thread on the external thread sleeve on the internal thread rod through the internal thread on the internal thread sleeve so that the external thread sleeve moves towards one end close to the telescopic outer sleeve along the telescopic rotating shaft; however, in this state, the first spring is in the shortest state, i.e., the telescopic inner rod cannot move towards the inner side of the telescopic outer sleeve; namely the telescopic inner rod is in a static state; the external thread cover is in quiescent condition promptly, triggers the cover promptly and can extrude the external screw thread on the external thread cover on the interior pole of screw through the internal thread on the internal thread cover and will make the external thread cover move to the one end that is close to flexible overcoat along flexible pivot this moment. When the trigger sleeve moves under the action of the threads, the first gear rotates relative to the second gear; in this state, the plate spring is compressed; in the moving process of the trigger sleeve, when the second guide block on the trigger sleeve is completely separated from the first guide groove on the fixed shaft sleeve, namely the second guide block on the trigger sleeve completely enters the circular groove on the fixed shaft sleeve, the fixed shaft sleeve loses the constraint on the trigger sleeve; at the moment, the corresponding driving sleeve moves to the lowest side, namely the driving sleeve cannot influence the folding of the lamp post; at the moment, the driving sleeve is static, namely the corresponding rack is in a static state, namely the first gear is in a static state, and under the state, the second gear can rotate reversely under the action of the plate spring; the second gear rotates reversely to drive a fourth gear meshed with the second gear to rotate; the fourth gear rotates to drive the third gear meshed with the fourth gear to rotate; the third gear rotates to drive the corresponding driving rotating shaft to rotate; the driving rotating shaft rotates to drive the corresponding intermediate rod to swing relative to the other adjacent intermediate rod.

In the invention, for the first driving mechanism, the first driving mechanism is different from the second driving mechanism in that the fourth gear and the gear shaft are not arranged in the first driving mechanism; the second gear is directly meshed with the third gear; when the corresponding second gear rotates reversely, the second gear can drive the third gear meshed with the second gear to rotate; the third gear rotates to drive the corresponding driving rotating shaft to rotate; the driving rotating shaft rotates to drive the corresponding middle rod or top rod to swing relative to the other middle rod or bottom rod adjacent to the middle rod or top rod. The first driving mechanism is not provided with a fourth gear and a gear shaft relative to the second driving mechanism; when the second gear rotates reversely, the swinging directions of the second gear in the first driving mechanism and the second driving mechanism transmitted to the corresponding driving rotating shaft are opposite; the lamp pole has the function of ensuring that the lamp pole can be folded clockwise for two sections and then folded anticlockwise for two sections in the folding process; the lamp pole is prevented from interfering in the folding process.

When the lamp post is in a folded state and is expected to be in a vertical state, the driving shaft at the lowest side is driven to rotate, and the driving shaft can drive the remaining five driving shafts to rotate through the corresponding universal joints; the driving shaft rotates to drive the driving gear arranged on the driving shaft to rotate; the driving gear rotates to drive the corresponding driving sleeve meshed with the driving gear to rotate; so that the six driving sleeves move upwards along the lamp pole; in this state, each of the folded lamp poles is in contact fit with the upper side of the corresponding driving sleeve, so that the driving sleeve moves upwards to push the corresponding lamp pole to swing upwards.

When the driving sleeve moves upwards, the two connecting plates arranged on the driving sleeve are driven to move upwards along the corresponding second square notch and the corresponding third square notch by the two annular guide blocks; the two connecting plates move to drive the racks arranged on the connecting plates to move upwards; the rack moves upwards to enable the first gear meshed with the rack to rotate; the first gear rotates to drive the telescopic rotating shaft to rotate; in the process, the driving sleeve moves upwards to push a section of the lamp pole corresponding to the driving sleeve to swing; the swing of the section of the lamp post can drive the third gear to rotate through the corresponding driving rotating shaft; for the second driving mechanism, the third gear rotates to drive the fourth gear meshed with the third gear to rotate; the fourth gear rotates to drive the second gear meshed with the fourth gear to rotate; the second gear wheel rotates to drive the corresponding trigger sleeve to rotate; the speed of the first gear driven by the rack is slightly higher than that of the second gear; so that the trigger sleeve can move relative to the telescopic rotating shaft at the moment; and the moving direction faces to the first gear; but the second guide block on the trigger sleeve and the first guide groove on the fixed sleeve are in a dislocation state at the moment; namely, the side surface corresponding to the circular groove formed on the fixed sleeve can provide a reverse thrust for the trigger sleeve; causing the trigger sleeve to have a driving force that moves away from the first gear; under the driving force, a first spring in the telescopic rotating shaft is stretched, and under the action of the first spring, a second guide block on the trigger sleeve and the side surface, close to the first guide groove, on the circular sleeve on the fixed sleeve have certain pressure; when the trigger sleeve rotates and a second guide block on the trigger sleeve is matched with a first guide groove formed in the fixed sleeve, the second guide block on the trigger sleeve can be quickly nested in the first guide groove formed in the fixed sleeve under the action of the first spring; but the lamp pole is already in a vertical state at the moment; the trigger sleeve is limited by the fixed sleeve and is in a static state in the rotating direction; therefore, at the moment, the driving sleeve continuously moves upwards to enable the first gear meshed with the rack to rotate through the rack; the first gear rotates to drive the telescopic rotating shaft to rotate; the first spring in the telescopic rotating shaft is in the shortest state; at the moment, the rotation of the telescopic rotating shaft can enable the trigger sleeve to continuously move towards one end of the fixed sleeve far away from the circular groove; when the trigger sleeve moves to the uppermost side, the second guide block on the trigger sleeve also moves to be completely matched with the first guide groove on the fixed sleeve. For the first driving mechanism, the third gear rotates to drive the second gear meshed with the third gear to rotate; the second gear wheel rotates to drive the corresponding trigger sleeve to rotate; the speed of the first gear driven by the rack is slightly higher than that of the second gear; so that the trigger sleeve can move relative to the telescopic rotating shaft at the moment; and the moving direction faces to the first gear; but the second guide block on the trigger sleeve and the first guide groove on the fixed sleeve are in a dislocation state at the moment; namely, the side surface corresponding to the circular groove formed on the fixed sleeve can provide a reverse thrust for the trigger sleeve; causing the trigger sleeve to have a driving force that moves away from the first gear; under the driving force, a first spring in the telescopic rotating shaft can be stretched, and under the action of the first spring, a second guide block on the trigger sleeve and one side surface, close to the first guide groove, on the circular sleeve on the fixed sleeve have certain pressure; when the trigger sleeve rotates and a second guide block on the trigger sleeve is matched with a first guide groove formed in the fixed sleeve, the second guide block on the trigger sleeve can be quickly nested in the first guide groove formed in the fixed sleeve under the action of the first spring; but the lamp pole is already in a vertical state at the moment; the trigger sleeve is limited by the fixed sleeve and is in a static state in the rotating direction; therefore, at the moment, the driving sleeve continuously moves upwards to enable the first gear meshed with the rack to rotate through the rack; the first gear rotates to drive the telescopic rotating shaft to rotate; the first spring in the telescopic rotating shaft is in the shortest state; at the moment, the rotation of the telescopic rotating shaft can enable the trigger sleeve to continuously move towards one end of the fixed sleeve far away from the circular groove; when the trigger sleeve moves to the uppermost side, the second guide block on the trigger sleeve also moves to be completely matched with the first guide groove on the fixed sleeve.

Compared with the traditional street lamp pole technology, the lamp pole designed by the invention is adjusted by the external driving mechanism, so that the lamp pole can be folded more; the lamp post is convenient to place and transport; in the use, if the street lamp needs to be changed, only need make the street lamp that is located the lamp pole the top remove the downside through the lamp pole is folding, and then change, need not use special machine of ascending a height to change.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of the first and second drive mechanisms.

Fig. 4 is a schematic plan view of the first drive mechanism.

Fig. 5 is a schematic view of the first drive mechanism installation.

Fig. 6 is a plan view of the second drive mechanism.

Fig. 7 is a second drive mechanism installation schematic.

Fig. 8 is a schematic view of the driving sleeve and the driving gear mating.

Fig. 9 is a drive shaft installation schematic.

Fig. 10 is a schematic view of a fixed support structure.

Fig. 11 is a schematic view of a driving sleeve structure.

Fig. 12 is a schematic view of the ring guide installation.

Fig. 13 is a rack mounting schematic.

Fig. 14 is a schematic view of the engagement of the rack with the first gear.

Fig. 15 is a schematic view of the structure of the jack.

FIG. 16 is a schematic illustration of a mid-bar connection.

Figure 17 is a leaf spring installation schematic.

Fig. 18 is a schematic view of an intermediate lever structure.

Fig. 19 is a fourth gear installation schematic.

Fig. 20 is a gear shaft distribution diagram.

Fig. 21 is a schematic view of the bottom bar structure.

FIG. 22 is a schematic view of the bottom bar, intermediate bar and top bar connections.

Fig. 23 is a second gear mounting schematic.

Fig. 24 is a schematic view of a fixed bushing arrangement.

Fig. 25 is a schematic view of a second gear structure.

Fig. 26 is a schematic view of the trigger sleeve structure.

Fig. 27 is a schematic view of the structure of the telescopic rotating shaft.

Number designation in the figures: 1. a bottom bar; 2. a drive sleeve; 3. an intermediate lever; 4. a universal joint; 5. a drive shaft; 6. a top rod; 7. a street lamp; 8. a first drive mechanism; 9. a second drive mechanism; 10. driving the rotating shaft; 11. a first gear; 12. a second gear; 13. a third gear; 14. a drive gear; 15. a plate spring; 16. fixing and supporting; 17. a telescopic rotating shaft; 18. a fourth gear; 19. a gear shaft; 24. an annular groove; 25. a rack; 26. an annular guide block; 27. a connecting plate; 28. a first square notch; 29. connecting the support lug; 30. a trigger block; 31. a limiting rod; 32. dialing a plate; 33. a shaft hole; 34. a second square notch; 35. a circular shaft hole; 36. a first mounting groove; 37. fixing the support lug; 38. a first limit groove; 39. a third square notch; 42. a second limit groove; 43. a second mounting groove; 44. a circular hole; 45. a fourth square notch; 46. fixing the shaft sleeve; 47. a trigger sleeve; 48. a first spring; 49. a circular groove; 50. a first guide groove; 51. a first guide block; 53. a second guide groove; 54. an internal thread sleeve; 55. a second guide block; 56. a telescopic outer sleeve; 57. a telescopic inner rod; 58. and an external thread sleeve.

Detailed Description

As shown in fig. 1 and 2, it includes a bottom rod 1, a driving sleeve 2, an intermediate rod 3, a universal joint 4, a driving shaft 5, a top rod 6, a street lamp 7, a first driving mechanism 8, a second driving mechanism 9, a fixed support 16, a driving gear 14, a first square notch 28, a connecting support lug 29, a second square notch 34, a circular shaft hole 35, a first mounting groove 36, a fixed support lug 37, a third square notch 39, a second mounting groove 43, a circular hole 44, a fourth square notch 45, a driving rotating shaft 10, and an annular groove 24, wherein as shown in fig. 21, the upper end of the bottom rod 1 has two symmetrical fixed support lugs 37, and the two fixed support lugs 37 have a circular hole 44 symmetrically; the upper end surface of the bottom rod 1 is provided with a second mounting groove 43, the upper end surface of the bottom rod 1 is provided with a fourth square notch 45 communicated with the outer circular surface, and the upper end of the fourth square notch 45 is communicated with the second mounting groove 43; the outer circular surface of the upper end of the bottom rod 1 is provided with an external thread; the upper end of the middle rod 3 is provided with two symmetrical fixed lugs 37, and the two fixed lugs 37 are symmetrically provided with a circular shaft hole 35; as shown in fig. 18, the upper end surface of the middle rod 3 is provided with a first mounting groove 36, the upper end surface of the middle rod 3 is provided with a second square notch 34 communicated with the outer circular surface, and the upper end of the second square notch 34 is communicated with a second mounting groove 43; the lower end surface of the intermediate rod 3 is provided with a third square notch 39 communicated with the outer circular surface, and the third square notch 39 and the second square notch 34 are positioned on the same direction in the circumferential direction of the intermediate rod 3; two connecting lugs 29 are symmetrically arranged at the lower end of the middle rod 3, and the two connecting lugs 29 are respectively positioned at two sides of the third square notch 39; external threads are arranged on the outer circular surfaces of the upper end and the lower end of the middle rod 3; as shown in fig. 15, the lower end surface of the top rod 6 is provided with a first square notch 28 communicated with the outer circular surface; the lower end of the ejector rod 6 is symmetrically provided with two connecting lugs 29, and the two connecting lugs 29 are respectively positioned at two sides of the first square notch 28; the outer circular surface of the lower end of the mandril 6 is provided with an external thread; as shown in fig. 22, five intermediate rods 3 are sequentially installed at the upper end of the bottom rod 1, as shown in fig. 16, the lower end of the intermediate rod 3 connected with the bottom rod 1 is connected with the upper end of the bottom rod 1 through corresponding fixed lugs 37 and connecting lugs 29 in a matching manner, and the corresponding fixed lugs 37 and connecting lugs 29 are connected through a driving rotating shaft 10; two adjacent intermediate rods 3 are connected in a matching way through a connecting lug 29 at the lower end of the intermediate rod and a fixed lug 37 of the intermediate rod 3 positioned at the lower side of the intermediate rod, and the corresponding fixed lug 37 and the connecting lug 29 are connected through a driving rotating shaft 10; the top rods 6 are arranged at the upper sides of the five middle rods 3; the lower end of the mandril 6 is connected with the fixed lug 37 on the middle lug at the uppermost side in a matching way through the connecting lug 29 on the mandril, and the corresponding fixed lug 37 is connected with the connecting lug 29 through the driving rotating shaft 10; as shown in fig. 1, the street lamp 7 is installed at the upper end of the post 6; as shown in fig. 3 and 6, two adjacent intermediate links 3 of the three intermediate links 3 located in the middle of the five intermediate links 3 are respectively provided with a first driving mechanism 8 at the connection thereof; as shown in fig. 3 and 4, a second driving mechanism 9 is installed at the joint of two intermediate links 3 located on the lower side among the five intermediate links 3; a second driving mechanism 9 is arranged at the joint of the middle rod 3 positioned at the lowest side of the five middle rods 3 and the bottom rod 1; a second driving mechanism 9 is arranged at the joint of two middle rods 3 positioned at the upper side in the five middle rods 3; a second driving mechanism 9 is arranged at the joint of the uppermost intermediate rod 3 and the top rod 6 in the five intermediate rods 3; as shown in fig. 11, two annular grooves 24 are symmetrically formed on the inner circumferential surface of the driving sleeve 2; the inner circular surface of the driving sleeve 2 is provided with internal threads; a plurality of teeth are uniformly arranged on the outer circular surface of the driving sleeve 2 in the circumferential direction, and the upper end and the lower end of each tooth are respectively flush with the upper end and the lower end of the driving sleeve 2; as shown in fig. 1, six driving sleeves 2 are respectively installed on the outer circular surface of a lamp post composed of a bottom rod 1, five middle rods 3 and a top rod 6; the driving sleeve 2 positioned at the lowest side in the six driving sleeves 2 is matched with the external thread on the bottom rod 1 and the external thread on the middle rod 3 adjacent to the bottom rod 1 through the internal thread on the driving sleeve 2; the driving sleeve 2 positioned at the uppermost side in the six driving sleeves 2 is matched with the external thread on the mandril 6 and the external thread on the middle rod 3 adjacent to the mandril 6 through the internal thread on the driving sleeve 2; four driving sleeves 2 positioned in the middle of the six driving sleeves 2 are correspondingly matched with external threads on three middle rods 3 positioned in the middle of the five middle rods 3 through internal threads on the four driving sleeves 2; as shown in fig. 1 and 9, six drive shafts 5 are connected in sequence via universal joints 4; as shown in fig. 8 and 10, six driving shafts 5 are respectively mounted on a lamp post composed of the bottom rod 1, the five middle rods 3 and the top rod 6 through a fixed support 16 and are positioned at one side of the lamp post; as shown in fig. 2, six universal joints 4 mounted on six driving shafts 5 are respectively matched with six driving rotating shafts 10 mounted on a lamp post composed of a bottom rod 1, five middle rods 3 and a top rod 6 in a one-to-one correspondence manner, and the centers of the six universal joints 4 are respectively located on extension lines of the axes of the corresponding driving rotating shafts 10; as shown in fig. 8, six drive gears 14 are mounted on the six drive shafts 5, respectively; as shown in fig. 9, six drive gears 14 mesh with teeth on six drive sleeves 2.

As shown in fig. 7, the second driving mechanism 9 includes a first gear 11, a second gear 12, a third gear 13, a plate spring 15, a telescopic rotating shaft 17, a fourth gear 18, a gear shaft 19, a rack 25, an annular guide block 26, a connecting plate 27, a fixed bushing 46, a trigger bushing 47, a circular groove 49, a first guide groove 50, a first guide block 51, a second guide groove 53, an internal thread bushing 54, a second guide block 55, and an external thread bushing 58, wherein the third gear 13 is mounted on the corresponding driving rotating shaft 10 as shown in fig. 20; one end of the gear shaft 19 is installed in a first installation groove 36 opened on the corresponding intermediate lever 3; the fourth gear 18 is mounted on a gear shaft 19; the fourth gear 18 meshes with the third gear 13; as shown in fig. 27, the telescopic rotating shaft 17 is composed of a telescopic outer sleeve 56, a telescopic inner rod 57 and a first spring 48, one end of the telescopic inner rod 57 is installed in the telescopic outer sleeve 56, and the first spring 48 is installed between one end of the telescopic inner rod 57 located in the telescopic outer sleeve 56 and the telescopic outer sleeve 56; one end of the first spring 48 is arranged on the telescopic inner rod 57, and the other end of the first spring 48 is arranged on the telescopic outer sleeve 56; one end of the telescopic inner rod 57 far away from the telescopic outer rod is provided with an external thread sleeve 58; one end of the telescopic outer sleeve 56, which is not provided with the telescopic inner rod 57, is arranged in the first installation groove 36 formed in the corresponding middle rod 3; as shown in fig. 20, the first gear 11 is mounted on the telescopic rotating shaft through a bearing; as shown in fig. 24, two second guide grooves 53 are uniformly formed in the circumferential direction on the outer circumferential surface of one end of the trigger sleeve 47, and two second guide blocks 55 are uniformly formed in the circumferential direction on the outer circumferential surface of the other end of the trigger sleeve 47; the inner circular surface of one end of the trigger sleeve 47, which is provided with the second guide block 55, is provided with an internal thread sleeve 54; as shown in fig. 23, the trigger sleeve 47 is mounted on the telescopic rotating shaft through the matching of the internal thread sleeve 54 and the external thread sleeve 58 on the telescopic rotating shaft; as shown in fig. 25, two first guide blocks 51 are circumferentially and uniformly mounted on the inner circumferential surface of the second gear 12; as shown in fig. 23, the second gear 12 is mounted on the trigger sleeve 47 by the cooperation of the two first guide blocks 51 and the two second guide grooves 53; the second gear 12 meshes with the fourth gear 18; a plate spring 15 is arranged between the second gear 12 and the first gear 11, one end of the plate spring 15 is arranged on the first gear 11, and the other end of the plate spring 15 is arranged on the second gear 12; as shown in fig. 26, two first guide grooves 50 are uniformly formed on the inner circumferential surface of one end of the fixed sleeve 46 in the circumferential direction; the inner circular surface at the other end of the fixed shaft sleeve 46 is provided with a circular groove 49; the inner circular surface of the circular groove 49 is flush with the bottom end of the first guide groove 50; one end of the fixed shaft sleeve 46 with a circular groove 49 is fixedly arranged in the first mounting groove 36 opened on the corresponding middle rod 3;

the second guide block 55 on the trigger sleeve 47 is matched with the first guide groove 50 on the fixed shaft sleeve 46; as shown in fig. 12, two annular guide blocks 26 are respectively installed in two annular grooves 24 formed on the corresponding driving sleeve 2; as shown in fig. 13, both ends of the rack 25 are respectively mounted on the two corresponding annular guide blocks 26 through a connecting plate 27; as shown in fig. 19, the rack 25 is engaged with the corresponding first gear 11.

As shown in fig. 5, 14 and 17, the first drive mechanism 8 and the second drive mechanism 9 are similar, except that the fourth gear 18 and the gear shaft 19 are not provided in the first drive mechanism 8; the third gear 13 is directly meshed with the second gear 12; the first driving mechanism 8 is arranged between two lowest middle rods 3 in the five middle rods 3, and one end of the telescopic outer sleeve 56, which is not provided with the telescopic inner rod 57, is arranged in the first mounting groove 36 formed in the corresponding middle rod 3; one end of the fixed shaft sleeve 46 with a circular groove 49 is fixedly arranged in the first mounting groove 36 opened on the corresponding middle rod 3;

the first driving mechanism 8 is arranged between the bottom rod 1 and the middle rod 3 which is positioned at the lowest side in the five middle rods 3, and one end of the telescopic outer sleeve 56 which is not provided with the telescopic inner rod 57 is arranged in the second mounting groove 43 which is formed in the bottom rod 1; one end of the fixed shaft sleeve 46 with a circular groove 49 is fixedly arranged in a second mounting groove 43 formed on the bottom rod 1; the first driving mechanism 8 is arranged between two uppermost intermediate rods 3 in the five intermediate rods 3, and one end of the telescopic outer sleeve 56, which is not provided with the telescopic inner rod 57, is arranged in the first mounting groove 36 formed in the corresponding intermediate rod 3; one end of the fixed shaft sleeve 46 of the first driving mechanism 8, which is provided with a circular groove 49, is fixedly arranged in the first installation groove 36 opened on the corresponding intermediate rod 3;

the first driving mechanism 8 is arranged between the top rod 6 and the uppermost one of the five intermediate rods 3, and one end of the telescopic outer sleeve 56, which is not provided with the telescopic inner rod 57, is arranged in the first mounting groove 36 formed in the corresponding intermediate rod 3; the fixed sleeve 46 of the first driving mechanism 8 has one end having a circular groove 49 fixedly fitted in the first fitting groove 36 opened in the corresponding intermediate lever 3.

The two ends of the driving rotating shaft 10 installed between the bottom rod 1 and the middle rod 3 connected with the bottom rod are respectively installed in a circular hole 44 formed on the bottom rod 1; the two ends of the driving rotating shaft 10 arranged between the top rod 6 and the middle rod 3 connected with the top rod are respectively arranged in a circular shaft hole 35 formed on the middle rod 3; the two ends of the driving rotating shaft 10 installed between two adjacent intermediate rods 3 are respectively installed in the circular shaft holes 35 opened on the corresponding intermediate rods 3.

The connecting plate 27 on the upper side of the two connecting plates 27 of the mounting rack 25 mounted between the bottom rod 1 and the middle rod 3 connected with the bottom rod is matched with the third square notch 39 opened on the corresponding middle rod 3, and the connecting plate 27 on the lower side is matched with the fourth square notch 45 opened on the bottom rod 1; the connecting plate 27 on the upper side of the two connecting plates 27 of the mounting rack 25 arranged between the top rod 6 and the middle rod 3 connected with the top rod is matched with a first square notch 28 formed on the top rod 6, and the connecting plate 27 on the lower side is matched with a second square notch 34 formed on the corresponding middle rod 3; the upper connecting plate 27 of the two connecting plates 27 of the mounting rack 25 mounted between two adjacent intermediate bars 3 is engaged with the third square notch 39 formed in the upper intermediate bar 3 of the two adjacent intermediate bars 3, and the lower connecting plate 27 is engaged with the second square notch 34 formed in the lower intermediate bar 3 of the two adjacent intermediate bars 3.

Three of the five middle rods 3 are short rods; wherein the middle rod 3 connected with the bottom rod 1 is a short rod; the middle rod 3 connected with the top rod 6 is a short rod; the intermediate bar 3 between the remaining two intermediate bars 3 of the five intermediate bars 3 is a short bar.

The swing angle between the bottom rod 1 and the middle rod 3 connected with the bottom rod is 90 degrees, the swing angle between two adjacent middle rods 3 is 90 degrees, and the swing angle between the top rod 6 and the middle rod 3 connected with the top rod is 90 degrees.

The drive shaft 5 located at the lowermost side is driven by an external drive mechanism.

When the lamp pole is in a vertical state, the internal thread sleeve 54 is positioned at one end of the corresponding external thread sleeve 58 close to the telescopic external pole; the first spring 48 is in the shortest state; the second gear 12 is adjacent to the second guide 55 on the trigger sleeve 47.

When the lamp pole is in a vertical state, the lowest ends of the six driving gears 14 are just flush with the lowest ends of the corresponding driving sleeves 2.

The first spring 48 is an extension spring.

In summary, the following steps:

the beneficial effects of the design of the invention are as follows: the lamp post is adjusted by an external driving mechanism, so that the lamp post can be folded more; the lamp post is convenient to place and transport; in the use, if street lamp 7 needs to be changed, only need make the street lamp 7 that is located the lamp pole the top remove the downside through the lamp pole is folding, and then change, need not use special climbing machine to change.

When the driving shaft 5 positioned at the lowest side rotates, the driving shaft 5 can drive the rest five driving shafts 5 to rotate through the corresponding universal joints 4; the driving shaft 5 rotates to drive the driving gear 14 mounted on the driving shaft to rotate; the driving gear 14 rotates to drive the corresponding driving sleeve 2 meshed with the driving gear to rotate; because the drive sleeve 2 positioned at the lowest side in the six drive sleeves 2 is matched with the external thread on the bottom rod 1 and the external thread on the middle rod 3 adjacent to the bottom rod 1 through the internal thread on the drive sleeve 2; the driving sleeve 2 positioned at the uppermost side in the six driving sleeves 2 is matched with the external thread on the mandril 6 and the external thread on the middle rod 3 adjacent to the mandril 6 through the internal thread on the driving sleeve 2; four driving sleeves 2 positioned in the middle of the six driving sleeves 2 are correspondingly matched with external threads on three middle rods 3 positioned in the middle of the five middle rods 3 through internal threads on the four driving sleeves 2; therefore, when the lamp post composed of the bottom rod 1, the five middle rods 3 and the top rod 6 is in a static state; the six driving sleeves 2 can move along the lamp pole under the action of corresponding thread matching when rotating; the universal joint 4 arranged among the six driving shafts 5 has the function that in the folding process of the lamp post, the universal joint 4 ensures that the six driving shafts 5 can simultaneously transmit torsion in the folding process of the following lamp post, so that the six driving shafts 5 are always in a rotating state in the folding process; meanwhile, after the folding is finished, if the lamp pole is required to be erected again, the driving shaft 5 at the lowest side is driven to rotate reversely; in this state, it is ensured by the universal joint 4 that the drive shaft 5 located at the lowermost side can smoothly transmit torque to the remaining five drive shafts 5; the remaining five drive shafts 5 are made to rotate; thereby driving the six driving gears 14 to rotate, so that the six driving gears 14 drive the six driving sleeves 2. The centers of six universal joints 4 designed by the invention are respectively positioned on the extension lines of the axes of the corresponding driving rotating shafts 10; the folding axes of two adjacent driving shafts 5 are ensured to be collinear with the folding axis of the corresponding folding position on the lamp pole in the process that the driving shafts 5 are folded along with the lamp pole; the interference between the adjacent two drive shafts 5 is prevented during the folding of the drive shafts 5.

In the invention, for the second driving mechanism 9, when the lamp pole is in a vertical state, and the driving sleeve 2 corresponding to the second driving mechanism moves downwards, the driving sleeve 2 drives the two connecting plates 27 arranged on the driving sleeve to move downwards along the corresponding second square notch 34 and third square notch 39 through the two annular guide blocks 26; the two connecting plates 27 move to drive the rack 25 arranged on the connecting plates to move downwards; the downward movement of the rack 25 causes the first gear 11 engaged therewith to rotate; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; in this state, one end of the fixed sleeve 46 is fixed in a static state, and the trigger sleeve 47 is matched with the first guide groove 50 formed on the fixed sleeve through the second guide block 55 on the trigger sleeve; the trigger case 47 is made to be in a stationary state in the rotational direction by the first guide groove 50 and the second guide block 55; in this state, when the telescopic rotating shaft 17 is rotated, the telescopic rotating shaft 17 moves the trigger sleeve 47 along the first guide groove 50 toward the end of the fixed sleeve where the circular groove 49 is opened by the thread engagement of the externally threaded sleeve 58 mounted thereon and the internally threaded sleeve 54 mounted on the trigger sleeve 47; in the invention, the second gear 12 is arranged on the trigger sleeve 47 through the matching of the two first guide blocks 51 and the two second guide grooves 53; when the lamp post is in a vertical state, the second gear 12 is close to the second guide block 55 on the trigger sleeve 47; a plate spring 15 is arranged between the first gear 11 and the corresponding second gear 12; the first gear 11 is mounted on the telescopic rotating shaft 17 through a bearing, namely, the first gear 11 cannot move along the telescopic rotating shaft 17; under the action of the pulling of the plate spring 15, the first gear 11 has a limiting effect on the second gear 12; so that the trigger sleeve 47 does not affect the second gear 12 during the movement, so that the second gear 12 follows the trigger sleeve 47 to move; the first guide block 51 and the second guide groove 53 function to prevent the trigger sleeve 47 from interfering with the second gear 12 during movement; meanwhile, when the second gear 12 rotates, the second gear 12 can drive the contact sleeve 47 to rotate through the first guide block 51 and the second guide groove 53; in the invention, when the lamp pole is in a vertical state, the internal thread sleeve 54 arranged on the trigger sleeve 47 is positioned at one end of the external thread sleeve 58 arranged on the corresponding telescopic rotating shaft, which is close to the telescopic external pole; the first spring 48 is in the shortest state; in this state, when the telescopic rotating shaft 17 rotates, since the trigger sleeve 47 is in a stationary state in the rotating direction under the action of the fixed sleeve, the trigger sleeve 47 can press the external thread on the external thread sleeve 58 on the threaded inner rod through the internal thread on the internal thread sleeve 54, so that the external thread sleeve 58 moves towards one end of the telescopic outer sleeve 56 along the telescopic rotating shaft; however, in this state, the first spring 48 is in the shortest state, i.e., the telescopic inner rod 57 cannot move toward the inside of the telescopic outer sleeve 56; namely, the telescopic inner rod 57 is in a static state; that is, the external thread bushing 58 is in a static state, that is, the trigger bushing 47 presses the external thread on the external thread bushing 58 on the internal thread bushing 54 through the internal thread of the internal thread bushing, so that the external thread bushing 58 moves toward the end of the telescopic outer bushing 56 along the telescopic rotating shaft. During the movement of the trigger sleeve 47 under the action of the screw thread, the first gear 11 rotates relative to the second gear 12; in this state, the plate spring 15 is compressed; when the second guide block 55 on the trigger sleeve 47 is completely separated from the first guide groove 50 on the fixed shaft sleeve 46 during the movement of the trigger sleeve 47, i.e. the second guide block 55 on the trigger sleeve 47 completely enters the circular groove 49 on the fixed shaft sleeve 46, the fixed shaft sleeve 46 loses the constraint on the trigger sleeve 47; at the moment, the corresponding driving sleeve 2 moves to the lowest side, namely the driving sleeve 2 cannot influence the folding of the lamp post; at this time, the driving sleeve 2 is stationary, that is, the corresponding rack 25 is in a stationary state, that is, the first gear 11 is in a stationary state, and in this state, under the action of the leaf spring 15, the second gear 12 rotates reversely; the second gear 12 rotates reversely to drive the fourth gear 18 engaged with the second gear to rotate; the fourth gear 18 rotates to drive the third gear 13 meshed with the fourth gear to rotate; the third gear 13 rotates to drive the corresponding driving rotating shaft 10 to rotate; the driving shaft 10 rotates to drive the corresponding intermediate rod 3 to swing relative to another intermediate rod 3 adjacent to the corresponding intermediate rod.

In the present invention, the first drive mechanism 8 is different from the second drive mechanism 9 in that the fourth gear 18 and the gear shaft 19 are not provided in the first drive mechanism 8; the second gear 12 is directly meshed with the third gear 13; when the corresponding second gear 12 rotates reversely, the second gear 12 will drive the third gear 13 engaged with the second gear to rotate; the third gear 13 rotates to drive the corresponding driving rotating shaft 10 to rotate; the driving rotating shaft 10 rotates to drive the corresponding middle rod 3 or the top rod 6 to swing relative to the other middle rod 3 or the bottom rod 1 adjacent to the middle rod 3 or the top rod. Since the first drive mechanism 8 does not have the fourth gear 18 and the gear shaft 19 relative to the second drive mechanism 9; namely, when the second gear 12 rotates reversely, the swinging directions of the second gear 12 in the first driving mechanism 8 and the second driving mechanism 9 transmitted to the corresponding driving rotating shaft 10 are opposite; the lamp pole has the function of ensuring that the lamp pole can be folded clockwise for two sections and then folded anticlockwise for two sections in the folding process; the lamp pole is prevented from interfering in the folding process, and the two sections are one long section and one short section.

When the lamp pole is in a folded state and is expected to be in a vertical state, the driving shaft 5 positioned at the lowest side is driven to rotate, and the driving shaft 5 can drive the remaining five driving shafts 5 to rotate through the corresponding universal joints 4; the driving shaft 5 rotates to drive the driving gear 14 mounted on the driving shaft to rotate; the driving gear 14 rotates to drive the corresponding driving sleeve 2 meshed with the driving gear to rotate; so that the six driving sleeves 2 move upwards along the lamp pole; since each of the folded poles is in contact fit with the upper side of the corresponding driving sleeve 2 in this state, the driving sleeve 2 moves upward to push the corresponding pole to swing upward.

When the driving sleeve 2 moves upwards, the two annular guide blocks 26 drive the two connecting plates 27 arranged on the driving sleeve to move upwards along the corresponding second square notch 34 and third square notch 39; the two connecting plates 27 move to drive the rack 25 mounted on the connecting plates to move upwards; the upward movement of the rack 25 causes the first gear 11 engaged therewith to rotate; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; in the process, the driving sleeve 2 moves upwards to push a section of the lamp pole corresponding to the driving sleeve to swing; the swing of the section of the lamp post drives the third gear 13 to rotate through the corresponding driving rotating shaft 10; for the second driving mechanism 8, the third gear 13 rotates to drive the fourth gear 18 meshed with the third gear to rotate; the rotation of the fourth gear 18 drives the second gear 12 engaged with the fourth gear to rotate; the second gear 12 rotates to drive the corresponding trigger sleeve 47 to rotate; the speed of the first gear 11 rotating under the action of the rack 25 is slightly higher than that of the second gear 12; so that the trigger sleeve 47 will move relative to the telescopic rotating shaft at this time; and the moving direction is towards the first gear 11; but now the second guide 55 of the trigger sleeve 47 is misaligned with the first guide slot 50 of the fixed sleeve; namely, the side surface corresponding to the circular groove 49 on the fixed sleeve can provide a reverse thrust for the trigger sleeve 47; so that the trigger sleeve 47 has a driving force moving away from the first gear 11; under the driving force, the first spring 48 in the telescopic rotating shaft is stretched, and under the action of the first spring 48, the second guide block 55 on the trigger sleeve 47 and the side surface of the circular sleeve on the fixed sleeve, which is close to the first guide groove 50, have certain pressure; when the second guide block 55 on the trigger sleeve 47 is matched with the first guide groove 50 opened on the fixed sleeve in the rotating process of the trigger sleeve 47, the second guide block 55 on the trigger sleeve 47 can be quickly embedded into the first guide groove 50 opened on the fixed sleeve under the action of the first spring 48; but the lamp pole is already in a vertical state at the moment; the trigger sleeve 47 is limited by the fixed sleeve and is in a static state in the rotating direction; so, at this time, the driving sleeve 2 further moving upward rotates the first gear 11 engaged with the rack 25 through the rack 25; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; the first spring 48 in the telescopic rotating shaft is in the shortest state; at this time, the rotation of the telescopic rotating shaft 17 causes the trigger sleeve 47 to continue moving towards the end of the fixing sleeve far away from the circular groove 49; when the trigger sleeve 47 is moved to the uppermost position, the second guide 55 on the trigger sleeve 47 is also moved into full engagement with the first guide slot 50 on the retaining sleeve. For the first driving mechanism 8, the third gear 13 rotates to drive the second gear 12 meshed with the third gear to rotate; the second gear 12 rotates to drive the corresponding trigger sleeve 47 to rotate; the speed of the first gear 11 rotating under the action of the rack 25 is slightly higher than that of the second gear 12; so that the trigger sleeve 47 will move relative to the telescopic rotating shaft at this time; and the moving direction is towards the first gear 11; but now the second guide 55 of the trigger sleeve 47 is misaligned with the first guide slot 50 of the fixed sleeve; namely, the side surface corresponding to the circular groove 49 on the fixed sleeve can provide a reverse thrust for the trigger sleeve 47; so that the trigger sleeve 47 has a driving force moving away from the first gear 11; under the driving force, the first spring 48 in the telescopic rotating shaft is stretched, and under the action of the first spring 48, a certain pressure is exerted on one side surface of the circular sleeve on the trigger sleeve 47 and the fixed sleeve, which is close to the first guide groove 50; when the second guide block 55 on the trigger sleeve 47 is matched with the first guide groove 50 opened on the fixed sleeve in the rotating process of the trigger sleeve 47, the second guide block 55 on the trigger sleeve 47 can be quickly embedded into the first guide groove 50 opened on the fixed sleeve under the action of the first spring 48; but the lamp pole is already in a vertical state at the moment; the trigger sleeve 47 is limited by the fixed sleeve and is in a static state in the rotating direction; so, at this time, the driving sleeve 2 further moving upward rotates the first gear 11 engaged with the rack 25 through the rack 25; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; the first spring 48 in the telescopic rotating shaft is in the shortest state; at this time, the rotation of the telescopic rotating shaft 17 causes the trigger sleeve 47 to continue moving towards the end of the fixing sleeve far away from the circular groove 49; when the trigger sleeve 47 is moved to the uppermost position, the second guide 55 on the trigger sleeve 47 is also moved into full engagement with the first guide slot 50 on the retaining sleeve.

The specific implementation mode is as follows: when the lamp post designed by the invention is used, before the lamp post is installed, the lamp post is pulled to a specified place through a special truck, and then the lowest end of the bottom rod 1 is fixed on the ground; then the driving shaft 5 at the lowest side is driven to rotate through an external driving mechanism; the driving shaft 5 drives the remaining five driving shafts 5 to rotate through the corresponding universal joints 4; the rotation of the driving shaft 5 can cause the six driving sleeves 2 to move upwards along the lamp pole; the driving sleeve 2 moves upwards to drive the corresponding rack 25 to move upwards; the upward movement of the rack 25 causes the first gear 11 engaged therewith to rotate; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; in the process, the driving sleeve 2 moves upwards to push a section of the lamp pole corresponding to the driving sleeve to swing; the swing of the lamp pole section can enable the corresponding second gear 12 to rotate; the second gear 12 rotates to drive the corresponding trigger sleeve 47 to rotate; under the action of the first gear 11 and the second gear 12, the second guide block 55 on the trigger sleeve 47 is finally moved to be completely matched with the first guide groove 50 on the fixed sleeve; at this moment, the trigger sleeve 47 just moves to the uppermost side to limit the lamp pole. When the street lamp 7 on the lamp post needs to be replaced, the driving shaft 5 at the lowest side is driven to rotate by the external driving mechanism; the driving shaft 5 drives the remaining five driving shafts 5 to rotate through the corresponding universal joints 4; the rotation of the driving shaft 5 causes the six driving sleeves 2 to move downwards along the lamp pole; the driving sleeve 2 moves downwards to drive the corresponding rack 25 to move downwards; the downward movement of the rack 25 causes the first gear 11 engaged therewith to rotate; the first gear 11 rotates to drive the telescopic rotating shaft to rotate; the rotation of the telescopic rotating shaft can make the corresponding plate spring 15 exert force; when the driving sleeve 2 moves to the lowest side, the lamp post can be folded under the action of the plate spring 15; so that the street lamp 7 is moved to the lower side, and is convenient for people to replace.

Claims

1. The utility model provides a light pole convenient to loading and unloading, its characterized in that: the street lamp comprises a bottom rod, a driving sleeve, intermediate rods, a universal joint, a driving shaft, a top rod, a street lamp, a first driving mechanism, a second driving mechanism and a driving gear, wherein the upper end of the bottom rod is sequentially provided with five intermediate rods, and the top rod is arranged on the upper sides of the five intermediate rods; the street lamp is arranged at the upper end of the ejector rod; the bottom rod, the five middle rods and the top rod are sequentially connected in a hinged mode respectively, and the fixed support lug and the connecting support lug at the hinged position are connected in a penetrating mode through a driving rotating shaft respectively;

two adjacent middle rods in the three middle rods in the middle of the five middle rods are respectively provided with a first driving mechanism at the connection position; a second driving mechanism is arranged at the joint of two middle rods positioned at the lower side of the five middle rods; a second driving mechanism is arranged at the joint of one middle rod positioned at the lowest side of the five middle rods and the bottom rod; a second driving mechanism is arranged at the joint of the two middle rods positioned at the upper side of the five middle rods; a second driving mechanism is arranged at the joint of the uppermost intermediate rod and the top rod in the five intermediate rods; six driving sleeves are sequentially arranged on the outer circular surface of the hinged part of the lamp post consisting of the bottom rod, the five middle rods and the ejector rod, and each driving sleeve is in threaded fit with corresponding external threads on the bottom rod, the five middle rods and the ejector rod through internal threads on the driving sleeves; two annular grooves are symmetrically formed in the upper part and the lower part of the inner circular surface of the driving sleeve; the six driving shafts are respectively arranged on a lamp post consisting of the bottom rod, the five middle rods and the top rod through a fixed support, and the six driving shafts are connected through universal joints in sequence; six universal joints connected with six driving shafts are respectively matched with six driving rotating shafts on the lamp post in a one-to-one correspondence mode, the six driving shafts are respectively provided with a driving gear, and the driving gears are meshed with teeth on the outer circular surface of a driving sleeve arranged on the lamp post in a one-to-one correspondence mode;

the first driving mechanism is internally provided with a plate spring, when the corresponding driving sleeve starts to move downwards, the plate spring in the first driving mechanism exerts force through transmission, and when the driving sleeve moves to lose the limit on the middle rod or the ejector rod positioned on the upper side of the driving sleeve, the middle rod or the ejector rod can automatically swing downwards under the action of the gravity of the corresponding middle rod or the ejector rod and the elasticity of the plate spring; when the driving sleeve moves to the bottommost end, the lamp pole is completely folded, and the plate spring has certain reverse elasticity in the state;

the upper end of the bottom rod is provided with two symmetrical fixed lugs, and a circular hole is symmetrically formed in each of the two fixed lugs; the upper end surface of the bottom rod is provided with a second mounting groove, the upper end surface of the bottom rod is provided with a fourth square notch communicated with the outer circular surface, and the upper end of the fourth square notch is communicated with the second mounting groove; the outer circular surface of the upper end of the bottom rod is provided with an external thread; the upper end of the middle rod is provided with two symmetrical fixed lugs, and the two fixed lugs are symmetrically provided with a circular shaft hole; the upper end surface of the middle rod is provided with a first mounting groove, the upper end surface of the middle rod is provided with a second square notch communicated with the outer circular surface, and the upper end of the second square notch is communicated with the second mounting groove; the lower end surface of the middle rod is provided with a third square notch communicated with the outer circular surface, and the third square notch and the second square notch are positioned in the same direction in the circumferential direction of the middle rod; the lower end of the middle rod is symmetrically provided with two connecting lugs, and the two connecting lugs are respectively positioned at two sides of the third square notch; external threads are arranged on the outer circular surfaces of the upper end and the lower end of the middle rod; the lower end surface of the ejector rod is provided with a first square notch communicated with the outer circular surface; the lower end of the ejector rod is symmetrically provided with two connecting lugs, and the two connecting lugs are respectively positioned on two sides of the first square notch; the outer circular surface of the lower end of the mandril is provided with an external thread;

the second driving mechanism comprises a first gear, a second gear, a third gear, a plate spring, a telescopic rotating shaft, a fourth gear, a gear shaft, a rack, an annular guide block, a connecting plate, a fixed shaft sleeve, a trigger sleeve, a circular groove, a first guide block, a second guide groove, an internal thread sleeve, a second guide block and an external thread sleeve, wherein the third gear is arranged on the corresponding driving rotating shaft; one end of the gear shaft is arranged in a first mounting groove formed on the corresponding intermediate rod; the fourth gear is arranged on the gear shaft; the fourth gear is meshed with the third gear; the telescopic rotating shaft consists of a telescopic outer sleeve, a telescopic inner rod and a first spring, wherein one end of the telescopic inner rod is arranged in the telescopic outer sleeve, and the first spring is arranged between one end of the telescopic inner rod, which is positioned in the telescopic outer sleeve, and the telescopic outer sleeve; one end of the first spring is arranged on the telescopic inner rod, and the other end of the first spring is arranged on the telescopic outer sleeve; one end of the telescopic inner rod, which is far away from the telescopic outer rod, is provided with an external thread sleeve; one end of the telescopic outer sleeve, which is not provided with the telescopic inner rod, is arranged in a first mounting groove formed in the corresponding middle rod; the first gear is arranged on the telescopic rotating shaft through a bearing; two second guide grooves are uniformly formed in the circumferential direction of the outer circular surface at one end of the trigger sleeve, and two second guide blocks are uniformly arranged in the circumferential direction of the outer circular surface at the other end of the trigger sleeve; an internal thread sleeve is arranged on the inner circular surface of one end of the trigger sleeve, which is provided with the second guide block; the trigger sleeve is arranged on the telescopic rotating shaft through the matching of the internal thread sleeve and the external thread sleeve on the telescopic rotating shaft; two first guide blocks are uniformly arranged on the inner circular surface of the second gear in the circumferential direction; the second gear is arranged on the trigger sleeve through the matching of the two first guide blocks and the two second guide grooves; the second gear is meshed with the fourth gear; a plate spring is arranged between the second gear and the first gear, one end of the plate spring is arranged on the first gear, and the other end of the plate spring is arranged on the second gear; two first guide grooves are uniformly formed in the circumferential direction on the inner circular surface at one end of the fixed shaft sleeve; the inner circle surface at the other end of the fixed shaft sleeve is provided with a circular groove; the inner circular surface of the circular groove is flush with the bottom end of the first guide groove; one end of the fixed shaft sleeve, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed in the corresponding middle rod; the second guide block on the trigger sleeve is matched with the first guide groove on the fixed shaft sleeve; the two annular guide blocks are respectively arranged in two annular grooves formed on the corresponding driving sleeves; two ends of the rack are respectively arranged on the two corresponding annular guide blocks through a connecting plate; the racks are meshed with the corresponding first gears;

the first driving mechanism comprises the same structure and installation mode as the second driving mechanism except that the first driving mechanism is not provided with the fourth gear and the gear shaft in the second driving mechanism, namely the third gear is directly meshed with the second gear.

2. A readily removable light pole as defined in claim 1, wherein: the centers of the six universal joints are respectively positioned on the extension lines of the axes of the corresponding driving rotating shafts.

3. A readily removable light pole as defined in claim 1, wherein: the first driving mechanism is arranged between two middle rods positioned at the lowest side in the five middle rods, and one end, which is not provided with the telescopic inner rod, of the telescopic outer sleeve is arranged in a first mounting groove formed in the corresponding middle rod; one end of the fixed shaft sleeve of the first driving mechanism, which is provided with a circular groove, is fixedly arranged in a first mounting groove formed on the corresponding intermediate rod;

4. A readily removable light pole as defined in claim 1, wherein: the two ends of the driving rotating shaft arranged between the bottom rod and the middle rod connected with the bottom rod are respectively arranged in the circular holes formed in the bottom rod; two ends of a driving rotating shaft arranged between the top rod and a middle rod connected with the top rod are respectively arranged in a circular shaft hole formed in the middle rod; two ends of the driving rotating shaft arranged between two adjacent intermediate rods are respectively arranged in the circular shaft holes arranged on the corresponding intermediate rods.

5. A readily removable light pole as defined in claim 1, wherein: the connecting plate on the upper side of the two connecting plates for mounting the rack, which are arranged between the bottom rod and the middle rod connected with the bottom rod, is matched with the third square notch formed on the corresponding middle rod, and the connecting plate on the lower side is matched with the fourth square notch formed on the bottom rod; the connecting plate on the upper side of the two connecting plates for mounting the rack, which are arranged between the ejector rod and the middle rod connected with the ejector rod, is matched with the first square notch formed on the ejector rod, and the connecting plate on the lower side of the two connecting plates is matched with the second square notch formed on the corresponding middle rod; the connecting plate on the upper side in the two connecting plates for installing the rack between the two adjacent middle rods is matched with the third square notch formed on the middle rod on the upper side in the two adjacent middle rods, and the connecting plate on the lower side is matched with the second square notch formed on the middle rod on the lower side in the two adjacent middle rods.

6. A readily removable light pole as defined in claim 1, wherein: when the lamp post is in a vertical state, the internal thread sleeve is positioned at one end of the corresponding external thread sleeve close to the telescopic external rod; the first spring is in the shortest state; the second gear is close to the second guide block on the trigger sleeve.

7. A readily removable light pole as defined in claim 1, wherein: three of the five middle rods are short rods; wherein the middle rod connected with the bottom rod is a short rod; the middle rod connected with the top rod is a short rod; the intermediate bar between the remaining two of the five intermediate bars is a short bar.

8. A readily removable light pole as defined in claim 1, wherein: the swing angle of the bottom rod and the middle rods connected with the bottom rod is 90 degrees, the swing angle of two adjacent middle rods is 90 degrees, and the swing angle between the top rod and the middle rods connected with the top rod is 90 degrees.