A self-retractable street light pole in an inclined state

Abstract

The present invention relates to the technical field of lighting equipment, and proposes a self-retractable street light pole in an inclined state, characterized in that it includes a lower light pole, the interior of which is hollow, a lifting drive mechanism, including a lifting shaft, which is vertically movable and arranged inside the lower light pole, a lifting column, which is arranged on the lifting shaft, and the side wall of the lifting column has a first spiral tooth portion, an inner gear ring, which is arranged on the inner wall of the lower light pole, is located outside the lifting column and is coaxial with the lifting column, a rotating member, which is rotatably arranged inside the lower light pole, has a gear portion and a second spiral tooth portion, the gear portion meshes with the inner gear ring, and the second spiral tooth portion meshes with the first spiral tooth portion, and an upper light pole, which is vertically movable and arranged inside the lower light pole, is connected to the lifting shaft and moves vertically following the lifting shaft. The above technical solution solves the problem of a large damage range when a street light pole topples over in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting equipment, and in particular to a self-retractable street light pole in an inclined state. Background Art

[0002] Street lights refer to lamps that provide lighting for roads. They generally refer to lamps within the range of road lighting in traffic lighting. Street lights are widely used in various places that require lighting. Street lights usually consist of two parts: lamp poles and lighting lamps. The lamp poles are fixedly installed on the foundation to play a supporting role.

[0003] In the existing street lamp poles, the bottom end of the pole is often inserted into a mounting slot opened in the ground. In the later use process, the pole often tilts due to loose installation at the bottom. When a huge collision occurs or the pole becomes loose and tilted, there will be a great safety hazard and safety accidents are prone to occur. Therefore, it is necessary to improve it to reduce the scope of damage when the pole falls. Summary of the invention

[0004] The present invention provides a street light pole which is self-retractable in an inclined state, thereby solving the problem of a large damage range when the street light pole falls over in the related art.

[0005] The technical solution of the present invention is as follows:

[0006] A street light pole which is self-retractable in an inclined state, comprising:

[0007] The lower lamp pole is hollow inside.

[0008] The lifting drive mechanism comprises:

[0009] A lifting shaft is vertically movable and arranged inside the lower lamp pole.

[0010] A lifting column is arranged on the lifting shaft, and a first spiral tooth portion is provided on the side wall of the lifting column. The lifting column is used to drive the lifting shaft to move vertically.

[0011] An inner gear ring is arranged on the inner wall of the lower lamp pole, located at the periphery of the lifting column and coaxial with the lifting column,

[0012] The rotating member is rotatably arranged inside the lower lamp pole, and has a gear portion and a second spiral tooth portion, wherein the gear portion is meshed with the inner gear ring, and the second spiral tooth portion is meshed with the first spiral tooth portion. After the rotating member rotates, it drives the lifting column to move vertically.

[0013] The upper lamp pole is arranged above the lower lamp pole, the bottom end of which is passed through the lower lamp pole, connected to the lifting shaft and moves vertically along with the lifting shaft.

[0014] As a further technical solution, the lifting drive mechanism further includes:

[0015] A crankshaft having an upper main journal, a lower main journal and a connecting rod journal, wherein the upper main journal and the lower main journal are both rotatably arranged inside the lower lamp pole, the lifting shaft passes through the upper main journal and the lower main journal and the three are coaxially arranged, the connecting rod journal is arranged between the upper main journal and the lower main journal, wherein the lifting column is located between the upper main journal and the lower main journal, and the axis of the connecting rod journal is parallel to the axis of the lifting shaft.

[0016] As a further technical solution, the lifting shaft has an upper key portion and a lower key portion, and the lifting drive mechanism further includes:

[0017] The upper fixed interlayer is arranged on the inner wall of the lower lamp pole, the lifting shaft passes through the upper fixed interlayer, the upper main shaft neck is rotatably arranged in the upper fixed interlayer, the upper fixed interlayer has an upper keyway, and the upper key part is vertically movable in the upper key part.

[0018] The lower fixed interlayer is arranged on the inner wall of the lower lamp pole and is located below the upper fixed interlayer. The lifting shaft passes through the lower fixed interlayer. The lower main shaft neck is rotatably arranged in the lower fixed interlayer. The lower fixed interlayer has a lower keyway, and the lower key part is vertically movable in the lower key part.

[0019] As a further technical solution, it also includes:

[0020] A movable column is vertically movable and arranged inside the lower lamp pole and in sliding contact with the inner wall of the lower lamp pole.

[0021] The top of the lifting shaft is connected to the center of the bottom surface of the moving column, driving the moving column to move vertically, and the upper lamp pole is arranged on the moving column to follow the movement.

[0022] As a further technical solution, it also includes:

[0023] A base, the lower lamp pole is arranged on the base, the bottom of the lifting shaft is in contact with or out of contact with the base,

[0024] A tension sensor is arranged on the base and located inside the lower lamp pole.

[0025] A tension rope, one end of which is connected to the upper lamp pole, and the other end of which is connected to the tension sensor, is used to work together with the tension sensor to detect the tilt state of the lamp pole.

[0026] As a further technical solution, there are at least four tension sensors, at least four tension ropes, and each of the tension sensors is connected to one tension sensor.

[0027] As a further technical solution, it also includes:

[0028] The transmission gear is rotatably arranged on the lower fixed interlayer, located below the moving column and coaxial with the moving column, and the connecting rod journal is connected to the transmission gear and rotates accordingly.

[0029] The driving gear is rotatably arranged on the lower fixed interlayer and meshes with the transmission gear to drive the transmission gear to rotate.

[0030] The rotating driving member is arranged on the lower fixed interlayer and is used for driving the driving gear to rotate.

[0031] As a further technical solution, it also includes:

[0032] The controller is arranged on the base, located in the lower lamp pole, connected to the tension sensor and the rotation drive member, and is used to control the switch of the rotation drive member.

[0033] The working principle and beneficial effects of the present invention are:

[0034] In the present invention, in order to reduce the scope of damage when the lamp pole falls over, the inventor has designed a self-retractable street lamp pole in a tilted state. When a huge collision occurs or the lamp pole is detected to be tilted, the lamp pole can automatically shrink. Compared with common street lamp poles, this type of street lamp pole can reduce its scope of damage when it falls over, thereby reducing damage to people and property.

[0035] The specific design of this street light pole is to divide the street light pole into two sections, namely, the upper light pole and the lower light pole. The interior of the lower light pole is designed to be hollow, and the upper light pole is designed to move up and down inside the lower light pole to meet the requirements of the street light pole being retractable. Then, the inventor designed a lifting drive mechanism to realize the lifting and moving of the upper light pole. The lifting drive mechanism is designed as follows: a lifting shaft located in the center of the lower light pole is connected to the bottom of the upper light pole, and then the lifting and lowering of the lifting shaft drives the lifting and lowering of the upper light pole. In order to realize the lifting and lowering of the lifting shaft, the inventor also designed a lifting column, an inner gear ring and a rotating part, wherein the lifting column is fixedly mounted on the lifting shaft, and the side wall of the lifting column has spiral teeth, namely, a first spiral tooth portion, and the inner gear ring is fixedly mounted on the inner wall of the lower light pole, which is coaxial with the lifting column, and then the rotating part is installed inside the lower light pole, and the rotating part is divided into a gear portion with straight teeth and a second spiral tooth portion with spiral teeth, the gear portion is meshed with the inner gear ring, and the second spiral tooth portion is meshed with the first spiral tooth portion. Therefore, when the rotating part rotates, in addition to rotating around its own axis, the rotating part as a whole also circulates on the inner gear ring. Since the second spiral tooth portion is meshed with the first spiral tooth portion, the tooth direction of the second spiral tooth portion and the first spiral tooth portion can be designed to realize the rotation of the rotating part to drive the lifting column to rise and fall. Since the lifting column is fixedly installed on the lifting shaft, the lifting column will drive the lifting shaft to rise and fall, thereby realizing the lifting and falling of the upper lamp pole. In summary, this design well realizes the retractability of the street light pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Figure 1 This is a schematic diagram of a half-section three-dimensional structure of the lower lamp pole in the present invention;

[0038] Figure 2 It is a schematic diagram of the three-dimensional structure of the street light pole part in the present invention;

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting drive mechanism in the present invention;

[0040] Figure 4 It is a schematic diagram of the three-dimensional structure of the crankshaft in the present invention;

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the upper main journal in the present invention;

[0042] Figure 6 It is a schematic diagram of the three-dimensional structure of the street light pole in the present invention.

[0043] In the figure: 1-lower lamp pole, 2-lifting drive mechanism, 201-lifting shaft, 2011-upper key portion, 2012-lower key portion, 202-lifting column, 2021-first spiral tooth portion, 203-inner gear ring, 204-rotating member, 2042-second spiral tooth portion, 2041-gear portion, 205-crankshaft, 2051-upper main journal, 2052-lower main journal, 2053-connecting rod journal, 206-upper fixed interlayer, 2061-upper keyway, 207-lower fixed interlayer, 2071-lower keyway, 3-upper lamp pole, 4-moving column, 5-base, 6-tension sensor, 7-tension rope, 8-transmission gear, 9-driving gear, 10-rotating driving member, 11-controller. DETAILED DESCRIPTION

[0044] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figure 1 to Figure 6 As shown, this embodiment provides a self-retractable street light pole in an inclined state, comprising:

[0046] The lower light pole 1 is hollow inside.

[0047] The lifting drive mechanism 2 comprises:

[0048] The lifting shaft 201 is vertically movable and arranged inside the lower lamp pole 1.

[0049] The lifting column 202 is disposed on the lifting shaft 201. The side wall of the lifting column 202 has a first spiral tooth portion 2021. The lifting column 202 is used to drive the lifting shaft 201 to move vertically.

[0050] The inner gear ring 203 is arranged on the inner wall of the lower lamp pole 1, located outside the lifting column 202 and coaxial with the lifting column 202.

[0051] The rotating member 204 is rotatably arranged inside the lower lamp pole 1, and has a gear portion 2041 and a second spiral tooth portion 2042. The gear portion 2041 is meshed with the inner gear ring 203, and the second spiral tooth portion 2042 is meshed with the first spiral tooth portion 2021. After the rotating member 204 rotates, it drives the lifting column 202 to move vertically.

[0052] The upper lamp pole 3 is arranged above the lower lamp pole 1 , and the bottom end thereof is passed through the lower lamp pole 1 , and is connected to the lifting shaft 201 and moves vertically along with the lifting shaft 201 .

[0053] In this embodiment, in order to reduce the scope of damage when the lamp pole falls, the inventor has designed a self-retractable street light pole in a tilted state. When a huge collision occurs or the lamp pole is detected to be tilted, the lamp pole can automatically shrink. Compared with common street light poles, this type of street light pole can reduce its scope of damage when it falls, thereby reducing damage to people and property.

[0054] The specific design of this street light pole is to divide the street light pole into two sections, namely, an upper light pole 3 and a lower light pole 1. The interior of the lower light pole 1 is designed to be hollow, and the upper light pole 3 is designed to be lifted and moved inside the lower light pole 1 to meet the requirement that the street light pole can be retracted. Then the inventor designed a lifting drive mechanism 2 to realize the lifting and movement of the upper light pole 3. The lifting drive mechanism 2 is designed as follows: a lifting shaft 201 located in the center of the lower lamp pole 1 is connected to the bottom of the upper lamp pole 3, and then the lifting of the lifting shaft 201 drives the upper lamp pole 3 to rise and fall. In order to realize the lifting and falling of the lifting shaft 201, the inventor also designed a lifting column 202, an inner gear ring 203 and a rotating member 204, wherein the lifting column 202 is fixedly installed on the lifting shaft 201, and the side wall of the lifting column 202 has spiral teeth, namely a first spiral tooth portion 2021, and the inner gear ring 203 is fixedly installed on the inner wall of the lower lamp pole 1, and is coaxial with the lifting column 202, and then the rotating member 204 is installed inside the lower lamp pole 1, and the rotating member 204 is divided into a gear portion 2041 with straight teeth and a second spiral tooth portion 2042 with spiral teeth, the gear portion 2041 is meshed with the inner gear ring 203, and the second spiral tooth portion 2042 is meshed with the first spiral tooth portion 2021. Therefore, when the rotating member 204 rotates, in addition to rotating around its own axis, the rotating member 204 as a whole also circulates on the inner gear ring 203. Since the second spiral tooth portion 2042 is meshed with the first spiral tooth portion 2021, the tooth directions of the second spiral tooth portion 2042 and the first spiral tooth portion 2021 can be designed to realize the rotation of the rotating member 204 to drive the lifting column 202 to rise and fall. Since the lifting column 202 is fixedly installed on the lifting shaft 201, the lifting column 202 will drive the lifting shaft 201 to rise and fall, thereby realizing the lifting and falling of the upper lamp pole 3. In summary, this design well realizes the retractability of the street light pole.

[0055] Furthermore, the lifting drive mechanism 2 also includes:

[0056] The crankshaft 205 has an upper main journal 2051, a lower main journal 2052 and a connecting rod journal 2053, wherein the upper main journal 2051 and the lower main journal 2052 are both rotatably arranged inside the lower lamp pole 1, the lifting shaft 201 passes through the upper main journal 2051 and the lower main journal 2052 and the three are arranged coaxially, the connecting rod journal 2053 is arranged between the upper main journal 2051 and the lower main journal 2052, wherein the lifting column 202 is located between the upper main journal 2051 and the lower main journal 2052, and the axis of the connecting rod journal 2053 is parallel to the axis of the lifting shaft 201.

[0057] like Figure 4 As shown, in this embodiment, the inventor has designed a crankshaft 205 to drive the rotating member 204 to rotate, and the crankshaft 205 is composed of a main journal and a connecting rod journal 2053, wherein the main journal is divided into an upper main journal 2051 and a lower main journal 2052, and the upper main journal 2051 and the lower main journal 2052 are designed to be coaxial with the lifting column 202, that is, the upper main journal 2051, the lower main journal 2052 and the lifting column 202 are all coaxial with the lifting shaft 201, and the connecting rod journal 2053 is installed between the upper main journal 2051 and the lower main journal 2052, and then the rotating member 204 is installed on the connecting rod journal 2053, and the position of the rotating member 204 on the connecting rod journal 2053 is designed so that it can be well engaged with the inner gear ring 203 and the lifting column 202.

[0058] Therefore, when the crankshaft 205 rotates, it will drive the rotating member 204 installed on the connecting rod journal 2053 to rotate along the inner gear ring 203. Due to the cooperation between the second helical tooth portion 2042 on the rotating member 204 and the first helical tooth portion 2021 on the lifting column 202, the rotation of the rotating member 204 will drive the lifting column 202 to move vertically, and then the lifting shaft 201 will also move vertically. The tooth direction cooperation between the first helical tooth portion 2021 and the second helical tooth portion 2042 can be set so that when the rotating member 204 rotates clockwise, the lifting column 202 rises; when the rotating member 204 rotates counterclockwise, the lifting column 202 descends.

[0059] In summary, the inventor has well realized the lifting movement of the lifting shaft 201 through this design, meeting the requirement of the retractable street light pole.

[0060] Further, the lifting shaft 201 has an upper key portion 2011 and a lower key portion 2012, and the lifting drive mechanism 2 further includes:

[0061] The upper fixed interlayer 206 is arranged on the inner wall of the lower lamp pole 1, the lifting shaft 201 passes through the upper fixed interlayer 206, the upper main journal 2051 is rotatably arranged in the upper fixed interlayer 206, the upper fixed interlayer 206 has an upper key groove 2061, and the upper key portion 2011 is vertically movable and arranged in the upper key portion 2011.

[0062] The lower fixed interlayer 207 is arranged on the inner wall of the lower lamp pole 1 and is located below the upper fixed interlayer 206. The lifting shaft 201 passes through the lower fixed interlayer 207. The lower main shaft neck 2052 is rotatably arranged in the lower fixed interlayer 207. The lower fixed interlayer 207 has a lower keyway 2071, and the lower key part 2012 is vertically movable in the lower key part 2012.

[0063] like Figure 4As shown, in this embodiment, the inventor has also designed two fixed interlayers, and the fixed interlayers can be composed of two fixed splints. The inventor uses two fixed interlayers to respectively receive the upper main journal 2051 and the lower main journal 2052 of the crankshaft 205. The two fixed interlayers are the upper fixed interlayer 206 and the lower fixed interlayer 207, which are installed on the inner wall of the lower lamp pole 1 from top to bottom. The upper main journal 2051 can be installed in the upper fixed interlayer 206 for rotation, and the lower main journal 2052 is installed in the lower fixed interlayer 207 for rotation, so as to realize the rotation of the upper main journal 2051 and the lower main journal 2052.

[0064] In addition, the inventor has also opened a key slot on the upper fixed interlayer 206 and the lower fixed interlayer 207, namely an upper key slot 2061 and a lower key slot 2071, and the lifting shaft 201 also has corresponding upper key portions 2011 and lower key portions 2012, and it is designed that the upper key portion 2011 moves vertically in the upper key slot 2061, and the lower key portion 2012 moves vertically in the lower key slot 2071. On the one hand, this design does not affect the vertical movement of the lifting shaft 201, and on the other hand, it also guides the lifting shaft 201, that is, it increases the stability of its movement, making the street light pole more stable when extending and retracting.

[0065] Furthermore, it also includes,

[0066] The movable column 4 is vertically movable and arranged inside the lower lamp pole 1 and is in sliding contact with the inner wall of the lower lamp pole 1.

[0067] The top of the lifting shaft 201 is connected to the center of the bottom surface of the moving column 4, driving the moving column 4 to move vertically, and the upper lamp pole 3 is set on the moving column 4 to move along.

[0068] like Figure 2~Figure 4 As shown, in the present embodiment, the inventor has also designed a movable column 4 inside the lower lamp pole 1, and the lower end face of the movable column 4 is fixedly mounted on the upper end face of the lifting shaft 201, that is, the lifting shaft 201 drives the movable column 4 to move, and the side wall surface of the movable column 4 is designed to fit against the inner wall surface of the lower lamp pole 1, that is, the movable column 4 can slide and rise and fall inside the lower lamp pole 1, and the upper end face of the movable column 4 is fixedly mounted with the upper lamp pole 3. On the one hand, this design can make the upper lamp pole 3 more stable when extending and retracting, and on the other hand, it can separate the upper lamp pole 3 from the lifting drive mechanism 2 below, which can reduce the influence of the upper lamp pole 3 on the lifting drive mechanism 2 and reduce the accumulation of dust and impurities on the lifting drive mechanism 2.

[0069] Furthermore, it also includes,

[0070] The base 5, the lower lamp pole 1 is arranged on the base 5, and the bottom of the lifting shaft 201 abuts against or is out of abutment with the base 5,

[0071] The tension sensor 6 is arranged on the base 5 and is located inside the lower lamp pole 1.

[0072] The tension rope 7 has one end connected to the upper lamp pole 3 and the other end connected to the tension sensor 6, and is used to cooperate with the tension sensor 6 to detect the tilt state of the lamp pole.

[0073] like Figure 2~Figure 4 As shown, in this embodiment, the inventor has also designed a base 5, a tension sensor 6 and a tension rope 7, wherein the base 5 is fixedly mounted on the ground, and then the lower lamp pole 1 is fixedly mounted on the base 5. In order to make the radial load of the lifting shaft 201 larger, the inventor has designed the lifting shaft 201 so that when it is dropped to the lowest height, its lower end face abuts against the base 5, that is, after the street lamp pole is tilted and completed to shrink, the lifting shaft 201 abuts against the base 5, and at this time, the radial load falls on the base 5 from top to bottom through the lifting shaft 201. Therefore, when the street lamp pole is tilted, the lifting shaft 201 pulls the upper lamp pole 3 to retract into the lower lamp pole 1, and finally the lifting shaft 201 drops to abut against the base 5. This design increases the load-bearing capacity of the lifting drive mechanism 2 on the upper lamp pole 3 when the street lamp pole is tilted, making the overall structure more stable.

[0074] In addition, the inventor also designed a tension rope 7 and a tension sensor 6, wherein the tension sensor 6 is installed on the base 5, one end of the tension rope 7 is connected to the tension sensor 6, and the other end is connected to the upper lamp pole 3. Since the base 5 will not fall over, when the street light pole tilts, the tension on the tension rope 7 will change, and then the detection range of the tension sensor 6 is designed. When the tension on the tension rope 7 changes beyond the detection range, the tension sensor 6 will transmit a signal to the controller 11, and then the controller 11 will start the lifting drive mechanism 2 to retract the upper lamp pole 3, thereby reducing the damage range of the street light pole when it falls over and improving safety.

[0075] Furthermore, there are at least four tension sensors 6 , at least four tension ropes 7 , and each tension sensor 6 is connected to a tension sensor 6 .

[0076] like Figure 1~Figure 5 As shown, in the present embodiment, the inventors have adopted a plurality of tension sensors 6 and a plurality of tension ropes 7, wherein one tension rope 7 is used in conjunction with one tension sensor 6. To make the detection of the inclination of the light pole have a certain accuracy, the inventors have designed four tension sensors 6 and tension ropes 7 in a matching manner, namely, the inclination can be detected in four different directions. Compared with using one tension rope 7 and one tension sensor 6, this design makes the detection of the inclination of the light pole more accurate and sensitive, and can make the light pole retract more quickly, thereby further improving safety.

[0077] Furthermore, it also includes,

[0078] The transmission gear 8 is rotatably arranged on the lower fixed interlayer 207, located below the moving column 4 and coaxial with the moving column 4, and the connecting rod journal 2053 is connected to the transmission gear 8 and rotates accordingly.

[0079] The driving gear 9 is rotatably disposed on the lower fixed interlayer 207 and meshes with the transmission gear 8 to drive the transmission gear 8 to rotate.

[0080] The rotating driving member 10 is arranged on the lower fixed interlayer 207 and is used for driving the driving gear 9 to rotate.

[0081] like Figure 1 to Figure 6 As shown, in this embodiment, the inventor uses gear transmission to drive the crankshaft 205 to rotate. The specific design is that a rotatable gear, namely a transmission gear 8, is installed on the upper end surface of the lower fixed interlayer 207, the lifting shaft 201 passes through the transmission gear 8, the transmission gear 8 is coaxial with the lifting shaft 201, and then the connecting rod journal 2053 is connected to the transmission gear 8, and then a rotating driving member 10 is installed next to the transmission gear 8. The rotating driving member 10 can be a motor, which can rotate forward and reverse, and then a driving gear 9 is installed on the motor shaft, and the driving gear 9 is meshed with the transmission gear 8. Therefore, when the motor is turned on for forward rotation, the driving gear 9 drives the transmission gear 8 to rotate, and the transmission gear 8 drives the connecting rod journal 2053 to rotate, thereby realizing the rotation of the rotating member 204 to drive the lifting column 202 to rise and fall, wherein the tooth direction of the driving gear 9 and the transmission gear 8 can be designed so that when the motor rotates forward, the rotating member 204 rotates clockwise, and when the motor rotates reversely, the rotating member 204 rotates counterclockwise. This design realizes the operation of the lifting drive mechanism 2 very well, and the operation is accurate and stable.

[0082] Furthermore, it also includes,

[0083] The controller 11 is disposed on the base 5 and located inside the lower lamp pole 1 . The controller 11 is connected to the tension sensor 6 and the rotating drive member and is used to control the switch of the rotating drive member.

[0084] like Figure 1 to Figure 6 As shown, in this embodiment, the inventors also designed a controller 11 to collect the signals of the sensors and issue instructions to control the switch of the rotating driving member 10, thereby realizing the automation of the overall operation.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A street light pole that can extend and retract in an inclined state, characterized in that: include, A lower light pole (1), wherein the interior of the lower light pole (1) is hollow. The lifting drive mechanism (2) comprises: A lifting shaft (201) is arranged inside the lower lamp pole (1) for vertical movement. A lifting column (202) is arranged on the lifting shaft (201), and a first spiral tooth portion (2021) is provided on a side wall of the lifting column (202). The lifting column (202) is used to drive the lifting shaft (201) to move vertically. An inner gear ring (203) is arranged on the inner wall of the lower lamp pole (1), is located outside the lifting column (202) and is coaxial with the lifting column (202). A rotating member (204) is rotatably arranged inside the lower lamp pole (1), and comprises a gear portion (2041) and a second spiral tooth portion (2042), wherein the gear portion (2041) meshes with the inner gear ring (203), and the second spiral tooth portion (2042) meshes with the first spiral tooth portion (221), and when the rotating member (204) rotates, it drives the lifting column (202) to move vertically. An upper light pole (3) is arranged above the lower light pole (1), with its bottom end inserted into the lower light pole (1), connected to the lifting shaft (201) and moving vertically along with the lifting shaft (201); The lifting drive mechanism (2) further comprises: The crankshaft (205) comprises an upper main journal (2051), a lower main journal (2052) and a connecting rod journal (2053), wherein the upper main journal (2051) and the lower main journal (2052) are both rotatably arranged inside the lower lamp pole (1), the lifting shaft (201) passes through the upper main journal (2051) and the lower main journal (2052), and the three are arranged coaxially, the connecting rod journal (2053) is arranged between the upper main journal (2051) and the lower main journal (2052), wherein the lifting column (202) is located between the upper main journal (2051) and the lower main journal (2052), and the axis of the connecting rod journal (2053) is parallel to the axis of the lifting shaft (201).

2. A street light pole that self-retracts in an inclined state according to claim 1, characterized in that: The lifting shaft (201) comprises an upper key portion (2011) and a lower key portion (2012), and the lifting drive mechanism (2) further comprises: An upper fixed interlayer (206) is arranged on the inner wall of the lower lamp pole (1); the lifting shaft (201) passes through the upper fixed interlayer (206); the upper main shaft neck (2051) is rotatably arranged in the upper fixed interlayer (206); the upper fixed interlayer (206) has an upper keyway (2061); the upper key portion (211) is vertically movable in the upper key portion (211); The lower fixed interlayer (207) is arranged on the inner wall of the lower lamp pole (1) and is located below the upper fixed interlayer (206); the lifting shaft (201) passes through the lower fixed interlayer (207); the lower main shaft neck (2052) is rotatably arranged in the lower fixed interlayer (207); the lower fixed interlayer (207) has a lower keyway (2071); and the lower key portion (2012) is vertically movably arranged in the lower key portion (2012).

3. The self-retractable street light pole in an inclined state according to claim 2, characterized in that: Also includes, A movable column (4) is arranged inside the lower lamp pole (1) for vertical movement and is in sliding contact with the inner wall of the lower lamp pole (1). The top of the lifting shaft (201) is connected to the center of the bottom surface of the moving column (4), driving the moving column (4) to move vertically, and the upper lamp pole (3) is arranged on the moving column (4) to follow the movement.

4. The self-retractable street light pole in an inclined state according to claim 3, characterized in that: Also includes, A base (5), the lower lamp pole (1) being arranged on the base (5), the bottom of the lifting shaft (201) being in contact with or out of contact with the base (5), A tension sensor (6) is arranged on the base (5) and is located inside the lower lamp post (1). A tension rope (7) has one end connected to the upper lamp pole (3) and the other end connected to the tension sensor (6), and is used to work together with the tension sensor (6) to detect the tilt state of the lamp pole.

5. A street light pole that self-retracts in an inclined state according to claim 4, characterized in that: There are at least four tension sensors (6), there are at least four tension ropes (7), and each of the tension sensors (6) is connected to one tension sensor (6).

6. The self-retractable street light pole in an inclined state according to claim 5, characterized in that: Also includes, The transmission gear (8) is rotatably arranged on the lower fixed interlayer (207), is located below the moving column (4) and is coaxial with the moving column (4), and the connecting rod journal (2053) is connected to the transmission gear (8) and rotates accordingly. A driving gear (9) is rotatably disposed on the lower fixed interlayer (207) and meshes with the transmission gear (8) to drive the transmission gear (8) to rotate. A rotating driving member (10) is arranged on the lower fixed interlayer (207) and is used to drive the driving gear (9) to rotate.

7. The self-retractable street light pole in an inclined state according to claim 6, characterized in that: Also includes, A controller (11) is arranged on the base (5), is located inside the lower lamp post (1), is connected to the tension sensor (6) and the rotary drive member (10), and is used to control the switch of the rotary drive member (10).

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