Automatic telescopic device for street lamp flag or advertisement flag of street lamp pole

Abstract

The automatic telescopic device comprises a telescopic unit and a fixing support fixedly connected with the telescopic unit, and the telescopic unit comprises a mounting shell, a winding drum mechanism, a mounting cover, a vertical beam and a crank arm mechanism. The automatic telescopic device is suitable for installation occasions of street lamp poles, street lamp road flags or advertisement road flags, the road flag installation mode is simple, a large amount of construction time is saved, and the installation efficiency is improved. Automatic unfolding and contracting of the road flag can be achieved through remote control, and damage to the road flag and the lamp post in severe weather is avoided. After the road flag is contracted, all the components can be hidden in the installation shell, and the appearance of the street lamp is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to road flag automatic telescopic device field, more specifically, relate to a kind of for street lamp pole street lamp road flag or advertising road flag automatic telescopic device. BACKGROUND

[0002] The most basic function of street lamp is not only to provide lighting function, but also part of city landscape, through carefully designed street lamp, the aesthetic degree of city night environment can be improved, and warm atmosphere is created. Meanwhile, street lamp can also help driver and pedestrian to better identify road and potential danger. Street lamp pole, as the basic carrier of street lamp, also has important role, such as various supports or cross arms on lamp pole can carry different function equipment, contribute to city safety and economy. Such as hanging various street lamp road flags or advertising flags, city or business propaganda, increase economic income;Or hang various propaganda slogans, national flag etc. during important festival, increase festival atmosphere, condense patriotic sentiment etc.

[0003] Street lamp road flag, also known as flagpole, generally refers to advertising, propaganda media on road lamp pole and the like object near activity venue. Mainly as propaganda, beautify environment, guide indication etc. At present, when installing street lamp road flag on street lamp pole, common practice is to install road flag on corresponding support first, then use corresponding hoop to place on one side of lamp pole, the threaded end of hoop is passed through corresponding opening of support, and nut is fixed to support and hoop. This installation mode, due to hoop and support are usually metal material, and contact with lamp pole, rust, paint peeling, nut corrosion and various problems will occur at contact part with lamp pole after being in external environment for a long time, even cause support to fall off, cause certain safety hazard. And after nut corrosion, it cannot be normally removed, cause difficulty in disassembling entire road flag, and cannot be reused. Meanwhile, after installation of hoop, flag cannot be retracted, can only be hung all the time, when encountering severe weather, flag may be damaged, cause certain economic loss. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming the defects of prior art, provide a kind of for street lamp pole street lamp road flag or advertising road flag automatic telescopic device.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of for street lamp pole street lamp road flag or advertising road flag automatic telescopic device, including telescopic unit and with the fixed connection of telescopic unit fixed support, the telescopic unit includes installation shell, reel mechanism, installation cover, vertical beam and curved arm mechanism, the side of installation shell has first opening, the side of installation cover has the second opening towards first opening, the vertical beam is installed in installation cover, the curved arm mechanism is connected vertical beam with installation shell, the reel mechanism is installed in installation shell.

[0006] Further, a control unit and a wireless communication unit are also included, and the control unit is capable of driving the motor.

[0007] Further, the telescopic unit is capable of being in a retracted state and an extended state, in the retracted state, the arm mechanism is in a folded state, and the mounting cover and the arm mechanism are both located in the mounting shell, in the extended state, the arm mechanism is in an unfolded state.

[0008] Further, the winding drum mechanism includes a winding drum and a motor capable of driving the winding drum to rotate, the winding drum is used for mounting a flag between the winding drum and the vertical beam, the winding drum is provided with a first mounting groove, and a first cloth penetrating rod is mounted in the first mounting groove, the vertical beam is provided with a second mounting groove, and a second cloth penetrating rod is mounted in the second mounting groove, and both ends of the first mounting groove and both ends of the second mounting groove are open.

[0009] The first cloth penetrating rod is inserted into a flag sleeve on one side of the flag, and the second cloth penetrating rod is inserted into a flag sleeve on the other side of the flag, so as to facilitate the installation of the flag through the first cloth penetrating rod and the second cloth penetrating rod.

[0010] Further, the arm mechanism includes a first connecting pipe, a second connecting pipe, a first spring, a second spring, a first connecting block, a second connecting block, a first end block and a second end block, the first connecting block is inserted into the first connecting pipe and fixedly connected with the first connecting pipe, the second connecting block is inserted into the second connecting pipe and fixedly connected with the second connecting pipe, the first connecting block is connected with an insertion block, the second connecting block is connected with two end plates, the insertion block is inserted between the two end plates, the two end plates and the insertion block are connected through a connecting shaft, the first end block is inserted into an end of the first connecting pipe and fixedly connected with the first connecting pipe, the second end block is inserted into an end of the second connecting pipe and fixedly connected with the second connecting pipe, the first spring is located in the first connecting pipe, the second spring is located in the second connecting pipe, a connecting rope is connected between the first spring and the second spring, the insertion block is provided with an annular groove matched with the connecting rope, an end of the first spring is provided with a third connecting block fixedly connected with the first end block, and an end of the second spring is provided with a fourth connecting block fixedly connected with the second end block.

[0011] Further, an included angle between the first connecting pipe and the second connecting pipe is between 20° and 160°.

[0012] Further, the first connecting pipe is provided with two first springs, and the second connecting pipe is provided with two second springs.

[0013] Thus, the arm mechanism has better elasticity during folding and unfolding.

[0014] Further, the first spring and the second spring are both tension springs.

[0015] Further, the connecting rope is a steel wire rope.

[0016] Therefore, the service life and durability are good.

[0017] Further, the mounting shell is provided with a curved arm mounting frame, the vertical beam is fixedly connected with a connecting plate, the connecting plate and the vertical beam are fixedly connected through a T-shaped bolt, the vertical beam is provided with a T-shaped sliding groove capable of allowing the stud end of the T-shaped bolt to pass through, the T-shaped bolt is provided with a nut for fixedly connecting the vertical beam and the connecting plate, the first connecting pipe of the curved arm mechanism extends into the mounting shell, the first end block is fixedly connected with the curved arm mounting frame, and the second end block is fixedly connected with the connecting plate.

[0018] Therefore, the stable installation of the curved arm mechanism is realized.

[0019] Further, two curved arm mechanisms are connected between the vertical beam and the mounting shell.

[0020] Therefore, the stretching and unfolding of the stretching unit are facilitated, and the stretching unit is more stable when unfolded.

[0021] Further, the top end of the winding drum is fixedly connected with a first end cover capable of closing the top end opening of the first mounting groove, and the bottom end is fixedly connected with a second end cover capable of closing the bottom end opening of the first mounting groove, the top of the vertical beam is provided with a first cover plate covering the top end opening of the second mounting groove, and the bottom of the vertical beam is provided with a second cover plate covering the bottom end opening of the second mounting groove.

[0022] Therefore, the first and second cloth feeding rods are prevented from falling out of the first and second mounting grooves.

[0023] Further, the mounting shell comprises a shell body and two mounting plates fixedly connected with the shell body, the cross section of the shell body is U-shaped, and the two mounting plates are respectively a top mounting plate and a bottom mounting plate, the top mounting plate and the bottom mounting plate respectively close the top end and the bottom end of the shell body, the top mounting plate is provided with a first bearing matched with the output shaft of the motor, the bottom end of the winding drum is provided with a rotating shaft, and the bottom mounting plate is provided with a second bearing matched with the rotating shaft.

[0024] Therefore, the winding drum mechanism is effectively supported and fixed.

[0025] Further, the rotating shaft is fixed at the second end cover.

[0026] Further, the top mounting plate has a first bearing hole for mounting a first bearing, the top of the top mounting plate is mounted with a first outer fixed plate covering the first bearing, and the bottom is mounted with a first inner fixed plate covering the first bearing, and the first inner fixed plate has a first through hole for the output shaft of the motor to extend out; the bottom mounting plate has a second bearing hole for mounting a second bearing, the top of the bottom mounting plate is mounted with a second inner fixed plate covering the second bearing, and the bottom is mounted with a second outer fixed plate covering the second bearing, and the second inner fixed plate has a second through hole for the rotating shaft to extend out.

[0027] Further, the mounting cover has a notch near one side of the curved arm mechanism.

[0028] Therefore, the notch can allow the curved arm mechanism to be undisturbed when it is folded or unfolded.

[0029] Further, the fixed support is in an L-shaped structure, and the top and bottom of the mounting shell are fixedly connected with the fixed support.

[0030] Therefore, it is convenient to install the automatic telescopic device.

[0031] Compared with the prior art, the automatic telescopic device has the beneficial effects that:

[0032] 1. The automatic telescopic device is suitable for the installation of a road flag or an advertising flag on a road lamp pole, and the road flag installation method is simple, a large amount of construction time is saved, and the installation efficiency is improved.

[0033] 2. The automatic telescopic device can realize automatic unfolding and contraction of the road flag, avoids damage to the road flag and the lamp pole in bad weather, and is beneficial to eliminating safety hazards.

[0034] 3. The automatic telescopic device can realize automatic unfolding and contraction of the road flag through remote control, without the need for personnel to be on site, and manpower is saved.

[0035] 4. The automatic telescopic device can hide the components in the mounting shell after the road flag is contracted, and has no effect on the appearance of the road lamp. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a schematic view of installing the automatic telescopic device;

[0037] Figure 2 It is an enlarged view of area A;

[0038] Figure 3 It is a schematic view of the automatic telescopic device after installation;

[0039] Figure 4 It is an enlarged view of area B;

[0040] Figure 5 Exemplary view of the telescoping unit;

[0041] Figure 6 Exemplary view of the telescoping unit; Figure 5 Exemplary view of the telescoping unit;

[0042] Figure 7 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0043] Exemplary view of the telescoping unit; Figure 8 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0044] Exemplary view of the telescoping unit; Figure 9 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0045] Exemplary view of the telescoping unit; Figure 10 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0046] Exemplary view of the telescoping unit; Figure 11 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0047] Exemplary view of the telescoping unit; Figure 12 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0048] Exemplary view of the telescoping unit; Figure 13 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0049] Exemplary view of the telescoping unit; Figure 14 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0050] Exemplary view of the telescoping unit; Figure 15 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0051] Exemplary view of the telescoping unit; Figure 16 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0052] Exemplary view of the telescoping unit; Figure 17 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0053] Exemplary view of the telescoping unit; Figure 18 Exemplary view of the telescoping unit; Exemplary view of the telescoping unit;

[0054] Exemplary view of the telescoping unit; Figure 19 Exemplary view of the telescoping unit. Exemplary view of the telescoping unit.

[0055] Explanation of reference signs: fixed support 1; mounting shell 2; shell 2.1; top mounting plate 2.2; bottom mounting plate 2.3; first bearing 2.4; second bearing 2.5; curved arm mounting frame 2.6; first outer fixed plate 2.7; first inner fixed plate 2.8; second inner fixed plate 2.9; second outer fixed plate 2.10; winding drum mechanism 3; winding drum 3.1; motor 3.2; first mounting groove 3.3; first end cover 3.4; second end cover 3.5; mounting cover 4; notch 4.1; vertical beam 5; T-shaped sliding groove 5.1; second mounting groove 5.2; first cover plate 5.3; second cover plate 5.4; curved arm mechanism 6; first connecting pipe 6.1; second connecting pipe 6.2; first spring 6.3; second spring 6.4; first connecting block 6.5; plug block 6.5.1; second connecting block 6.6; end plate 6.6.1; connecting shaft 6.7; first end block 6.8; second end block 6.9; connecting rope 6.10; third connecting block 6.11; fourth connecting block 6.12; flag 7; connecting plate 8; T-shaped bolt 8.1; nut 8.2; first cloth penetrating rod 9; second cloth penetrating rod 10; street lamp pole 11; groove 11.1. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0057] The present application provides an automatic telescopic device for street lamp pole street lamp flag or advertising flag as shown in the drawings, which comprises a telescopic unit and a fixed support 1 fixedly connected with the telescopic unit, the telescopic unit comprises a mounting shell 2, a winding drum mechanism 3, a mounting cover 4, a vertical beam 5 and a curved arm mechanism 6, the side surface of the mounting shell 2 has a first opening, the side surface of the mounting cover 4 has a second opening facing the first opening, the vertical beam 5 is installed in the mounting cover 4, the curved arm mechanism 6 connects the vertical beam 5 and the mounting shell 2, and the winding drum mechanism 3 is installed in the mounting shell 2.

[0058] The telescopic unit can be in a contracted state and an expanded state, in the contracted state, the curved arm mechanism 6 is in a folded state, the mounting cover 4 and the curved arm mechanism 6 are located in the mounting shell 2, in the expanded state, the curved arm mechanism 6 is in an open state. The winding drum mechanism 3 comprises a winding drum 3.1 and a motor 3.2 capable of driving the winding drum to rotate, the winding drum 3.1 is used for mounting a flag 7 between the vertical beam 5, the winding drum 3.1 is provided with a first mounting groove 3.3, a first cloth penetrating rod 9 is mounted in the first mounting groove 3.3, the vertical beam 5 is provided with a second mounting groove 5.2, a second cloth penetrating rod 10 is mounted in the second mounting groove 5.2, and both ends of the first mounting groove 3.3 and both ends of the second mounting groove 5.2 are open.

[0059] The curved arm mechanism 6 comprises a first connecting pipe 6.1, a second connecting pipe 6.2, a first spring 6.3, a second spring 6.4, a first connecting block 6.5, a second connecting block 6.6, a first end block 6.8 and a second end block 6.9, the first connecting block 6.5 is inserted into the first connecting pipe 6.1 and fixedly connected with the first connecting pipe 6.1, the second connecting block 6.6 is inserted into the second connecting pipe 6.2 and fixedly connected with the second connecting pipe 6.2, the first connecting block 6.5 is connected with an insertion block 6.5.1, the second connecting block 6.6 is connected with two end plates 6.6.1, the insertion block is inserted between the two end plates, the two end plates 6.6.1 and the insertion block 6.5.1 are connected through a connecting shaft 6.7, the first end block 6.8 is inserted into the end of the first connecting pipe 6.1 and fixedly connected with the first connecting pipe 6.1, the second end block 6.9 is inserted into the end of the second connecting pipe 6.2 and fixedly connected with the second connecting pipe 6.2, the first spring 6.3 is located in the first connecting pipe 6.1, the second spring 6.4 is located in the second connecting pipe 6.2, a connecting rope 6.10 is connected between the first spring 6.3 and the second spring 6.4, the insertion block 6.5.1 is provided with a ring-shaped groove matched with the connecting rope 6.10, the end of the first spring 6.3 is provided with a third connecting block 6.11 fixedly connected with the first end block 6.8, the end of the second spring 6.4 is provided with a fourth connecting block 6.12 fixedly connected with the second end block 6.9. The first connecting pipe 6.1 is provided with two first springs 6.3, and the second connecting pipe 6.2 is provided with two second springs 6.4. The mounting shell 2 is provided with a curved arm mounting rack 2.6, the vertical beam 5 is fixedly connected with a connecting plate 8, the connecting plate 8 is fixedly connected with the vertical beam 5 through a T-shaped bolt 8.1, the vertical beam 5 is provided with a T-shaped sliding groove 5.1 capable of allowing the stud end of the T-shaped bolt 8.1 to pass through, the T-shaped bolt 8.1 is provided with a nut 8.2 for fixedly connecting the vertical beam 5 and the connecting plate 8, the first connecting pipe 6.1 of the curved arm mechanism 6 extends into the mounting shell 2, the first end block 6.8 is fixedly connected with the curved arm mounting rack 2.6, and the second end block 6.9 is fixedly connected with the connecting plate 8.

[0060] The top end of the winding drum 3.1 is fixed with a first end cover 3.4 capable of closing the top end opening of the first mounting groove 3.3, and the bottom end is fixed with a second end cover 3.5 capable of closing the bottom end opening of the first mounting groove 3.3, the rotating shaft is fixed at the second end cover 5.5, the top of the vertical beam 5 is mounted with a first cover plate 5.3 covering the top end opening of the second mounting groove 5.2, and the bottom is mounted with a second cover plate 5.4 covering the bottom end opening of the second mounting groove 5.2. The mounting shell 2 comprises a shell 2.1 and two mounting plates fixedly connected with the shell 2.1, the cross section of the shell 2.1 is U-shaped, and the two mounting plates are respectively a top mounting plate 2.2 and a bottom mounting plate 2.3, the top mounting plate 2.2 and the bottom mounting plate 2.3 respectively close the top end and the bottom end of the shell 2.1, the top mounting plate 2.2 is mounted with a first bearing 2.4 matched with the output shaft of the motor 3.2, the bottom end of the winding drum 3.1 has a rotating shaft, and the bottom mounting plate 2.3 is mounted with a second bearing 2.5 matched with the rotating shaft. The top mounting plate 2.2 has a first bearing hole for mounting the first bearing 2.4, the top of the top mounting plate 2.2 is mounted with a first outer fixed plate 2.7 covering the first bearing 2.4, and the bottom is mounted with a first inner fixed plate 2.8 covering the first bearing 2.4, the first inner fixed plate 2.8 has a first through hole for the output shaft of the motor 3.2 to extend out; the bottom mounting plate 2.3 has a second bearing hole for mounting the second bearing 2.5, the top of the bottom mounting plate 2.3 is mounted with a second inner fixed plate 2.9 covering the second bearing 2.5, and the bottom is mounted with a second outer fixed plate 2.10 covering the second bearing 2.5, the second inner fixed plate 2.9 has a second through hole for the rotating shaft to extend out. The mounting cover 4 has a notch 4.1 on one side close to the curved arm mechanism 6. The fixed support 1 is L-shaped structure, and the top and bottom of the mounting shell 2 are fixedly connected with the fixed support 1.

[0061] Working principle: the automatic telescopic device of the application controls the control unit built in the lamp pole through the remote signal control on the street lamp platform APP, controls the forward and reverse rotation of the motor, drives the winding drum to rotate, and makes the road flag automatically expand and contract under the cooperation of the curved arm mechanism. After the road flag is expanded, the curved arm mechanism can effectively support and display the road flag; after the road flag is contracted, the curved arm mechanism is also convenient to store.

[0062] Specifically, when the motor expands the road flag, the spring force in the curved arm mechanism is released and acts on the vertical beam, the vertical beam is pushed out to the preset position and then stopped, so as to expand and tighten the road flag, at this time the spring is contracted to the preset position and kept; when the motor rotates reversely, the motor overcomes the spring force in the curved arm mechanism, winds the road flag on the winding drum, at this time the vertical beam is slowly folded with the contraction of the curved arm mechanism, the spring in the curved arm mechanism is gradually stretched to the preset position and kept, at the same time the mounting cover, the vertical beam and the curved arm mechanism are hidden in the mounting shell.

[0063] The specific installation steps are as follows:

[0064] First step: pass two cloth rods into two flag sleeves of the banner respectively;

[0065] Second step: pass the first cloth rod into the first installation slot at the winding drum, then install the motor into the winding drum and fix it by the fixing bolt, then install the first end cover at the top end of the winding drum and install the second end cover at the bottom end of the winding drum, so as to close the openings at both ends of the first installation slot.

[0066] Third step: pass the second cloth rod into the second installation slot at the vertical beam, then put the nut of the T-shaped bolt into the T-shaped sliding groove at the vertical beam (each connecting plate has two T-shaped bolts), then install the first cover plate at the top end of the vertical beam and install the second cover plate at the bottom end of the vertical beam, so as to close the openings at both ends of the second installation slot and the openings at both ends of the T-shaped sliding groove;

[0067] Fourth step: install the vertical beam into the installation cover, and make the side with the T-shaped bolt face the gap of the installation cover;

[0068] Fifth step: make the output shaft of the motor cooperate with the first bearing, and make the rotating shaft at the bottom end of the winding drum cooperate with the second bearing, then install the winding drum mechanism into the installation shell;

[0069] Sixth step: fix the first end block of the curved arm mechanism with the curved arm mounting frame in the installation shell, then pass the stud end of the T-shaped bolt through the installation through hole at the connecting plate, slide the T-shaped bolt to the appropriate position, and then fix the connecting plate with the vertical beam by the nut through one of the T-shaped bolts; pass the second end block through the other T-shaped bolt in sequence and fix it with the nut, so as to realize the connection between the second connecting pipe and the vertical beam;

[0070] Seventh step: install the fixed support at the top and bottom of the installation shell, then fix the fixed support at the street lamp pole. The street lamp pole is provided with a groove, the groove is provided with a threaded hole, the fixed support is provided with an installation through hole, and the fixed support is fixedly connected with the street lamp pole by the fixing bolt. After the installation is completed, the installation shell can be accommodated in the groove.

[0071] Although the utility model is illustrated and described in terms of preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the utility model as long as they do not exceed the scope defined by the claims of the utility model.

Claims

1. An automatic extension device for a road lamp pole, a road lamp banner or an advertising banner, characterized in that, The utility model provides a retractable flagpole, which comprises a fixed support and a telescopic unit fixedly connected with the fixed support, the telescopic unit comprises a mounting shell, a winding drum mechanism, a mounting cover, a vertical beam and a curved arm mechanism, the side of the mounting shell is provided with a first opening, the side of the mounting cover is provided with a second opening facing the first opening, the vertical beam is mounted in the mounting cover, the curved arm mechanism is connected with the mounting shell and the vertical beam, and the winding drum mechanism is mounted in the mounting shell.

2. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 1, characterized in that, The telescopic unit can be in a retracted state and an expanded state, in the retracted state, the curved arm mechanism is in a folded state, and the mounting cover and the curved arm mechanism are located in the mounting shell, in the expanded state, the curved arm mechanism is in an unfolded state.

3. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 1, characterized in that, The winding drum mechanism comprises a winding drum and a motor capable of driving the winding drum to rotate, the winding drum is provided with a first mounting groove for mounting a flag, the winding drum is provided with a first mounting groove, the first mounting groove is provided with a first cloth penetrating rod, the vertical beam is provided with a second mounting groove, the second mounting groove is provided with a second cloth penetrating rod, and the two ends of the first mounting groove and the two ends of the second mounting groove are open.

4. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 1, characterized in that, The curved arm mechanism comprises a first connecting pipe, a second connecting pipe, a first spring, a second spring, a first connecting block, a second connecting block, a first end block and a second end block, the first connecting block is inserted into the first connecting pipe and fixedly connected with the first connecting pipe, the second connecting block is inserted into the second connecting pipe and fixedly connected with the second connecting pipe, the first connecting block is connected with an insertion block, the second connecting block is connected with two end plates, the insertion block is inserted between the two end plates, the two end plates and the insertion block are connected through a connecting shaft, the first end block is inserted into the end of the first connecting pipe and fixedly connected with the first connecting pipe, the second end block is inserted into the end of the second connecting pipe and fixedly connected with the second connecting pipe, the first spring is located in the first connecting pipe, the second spring is located in the second connecting pipe, a connecting rope is connected between the first spring and the second spring, the insertion block is provided with an annular groove matched with the connecting rope, the end of the first spring is provided with a third connecting block fixedly connected with the first end block, and the end of the second spring is provided with a fourth connecting block fixedly connected with the second end block.

5. The automatic retraction device for a road lantern pole, a road lantern pennant or an advertisement pennant according to claim 4, characterized in that, A curved arm mounting frame is arranged in the mounting shell, the vertical beam is fixedly connected with a connecting plate, the connecting plate and the vertical beam are fixedly connected through a T-shaped bolt, the vertical beam is provided with a T-shaped sliding groove through which the stud end of the T-shaped bolt can pass, the T-shaped bolt is provided with a nut for fixedly connecting the vertical beam and the connecting plate, the first connecting pipe of the curved arm mechanism extends into the mounting shell, the first end block is fixedly connected with the curved arm mounting frame, and the second end block is fixedly connected with the connecting plate.

6. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 3, characterized in that, The top end of the winding drum is fixedly connected with a first end cover capable of closing the open top end of the first mounting groove, the bottom end is fixedly connected with a second end cover capable of closing the open bottom end of the first mounting groove, the top of the vertical beam is provided with a first cover plate covering the open top end of the second mounting groove, and the bottom of the vertical beam is provided with a second cover plate covering the open bottom end of the second mounting groove.

7. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 3, characterized in that, The mounting shell comprises a shell and two mounting plates fixedly connected with the shell, the shell is in U-shaped cross section, the two mounting plates are respectively a top mounting plate and a bottom mounting plate, the top mounting plate and the bottom mounting plate respectively close the top end and the bottom end of the shell, the first bearing cooperating with the output shaft of the motor is installed at the top mounting plate, the bottom end of the winding drum has a rotating shaft, and the second bearing cooperating with the rotating shaft is installed at the bottom mounting plate.

8. The automatic retraction device for a road lantern pole, a road lantern pennant or an advertisement pennant according to claim 7, characterized in that, The top mounting plate is provided with a first bearing hole for installing the first bearing, the top of the top mounting plate is provided with a first outer fixed plate covering the first bearing, the bottom of the top mounting plate is provided with a first inner fixed plate covering the first bearing, and the first inner fixed plate is provided with a first through hole for the output shaft of the motor to extend out; the bottom mounting plate is provided with a second bearing hole for installing the second bearing, the top of the bottom mounting plate is provided with a second inner fixed plate covering the second bearing, the bottom of the bottom mounting plate is provided with a second outer fixed plate covering the second bearing, and the second inner fixed plate is provided with a second through hole for the rotating shaft to extend out.

9. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 1, characterized in that, The mounting cover is provided with a notch near one side of the curved arm mechanism.

10. The automatic telescopic device for street light pole, street light pennant or advertising pennant according to claim 1, characterized in that, The fixing support is in L-shaped structure, and the top and the bottom of the mounting shell are fixedly connected with the fixing support.

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