Adjustable street lamp support

Abstract

The invention relates to the technical field of street lamps, in particular to an adjustable street lamp support which comprises a street lamp mounting rod, and a street lamp body is arranged on the street lamp mounting rod. The street lamp further comprises a plurality of sets of connecting rods which are connected with one another, and the bottom end of the connecting rod on the bottommost layer is connected with a street lamp mounting base. The connecting assemblies are arranged at the bottom ends of the street lamp mounting rod and the connecting rods, and the street lamp mounting rod, the connecting rods and the street lamp mounting base are connected through the connecting assemblies; and the releasing assembly is used for releasing connection between the street lamp mounting rod and the connecting rods and connection between the connecting rods and the street lamp mounting base. Through cooperation of the street lamp mounting rod, the multiple sets of connecting rods and the street lamp mounting base, the street lamp body is fixedly mounted, and the height of the street lamp body is determined by increasing or decreasing the number of the connecting rods.

Description

Technical Field

[0001] The present invention relates to the technical field of street lamps, and in particular to an adjustable street lamp bracket. Background Art

[0002] Street lights refer to lamps that provide lighting for roads. They generally refer to lamps within the scope of road lighting in traffic lighting and are widely used in various places where lighting is required. When the street lamp is in use, it needs to be fixed with the street lamp bracket. In the prior art, the Chinese utility model with the announcement number CN208418443U discloses an energy-saving LED street lamp bracket with adjustable lifting, which relates to the technical field of road construction. The energy-saving LED street lamp bracket with adjustable lifting comprises a lamp pole and a slider ring, the surface of the lamp pole is slidably connected to the inner wall of the slider ring, the bottom of the lamp pole is fixedly connected to the lamp base, the top of the lamp pole is fixedly connected to the fixing plate, the right side of the lamp pole is rotatably connected to the rope drum, the right side of the lamp pole is fixedly connected to the protective cylinder, the interior of the protective cylinder is sleeved with the surface of the rope drum. The energy-saving LED street lamp bracket with adjustable lifting, by pulling the pull ring, drives the other end of the pull rope to be fixedly connected to the locking pin to be pulled out, and at the same time, the rocker is shaken to make the slider ring fixedly connected to the other end of the lifting rope descend to a height convenient for maintenance, and the pull ring is released to fix the slider ring, so that the street lamp can be repaired at this time, which saves the trouble of climbing the street lamp pole and is relatively safe. In the prior art, the height of the street lamp bracket cannot be adjusted. On some country roads, there are trees on both sides of the road, and the low trees will affect the installation of the street lamp, resulting in the inability to install the existing street lamp on the roadside with low trees. Summary of the Invention

[0003] The object of the present invention is to provide an adjustable street lamp bracket to solve the problems raised by the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An adjustable street lamp bracket includes a street lamp mounting rod, on which a street lamp body is provided. The bracket is characterized in that it further includes: Connecting rods, wherein the connecting rods are provided in multiple groups, the multiple groups of connecting rods are connected to each other, and the bottom end of the connecting rod at the bottom layer is connected to the street lamp mounting base; A connecting assembly is provided at the bottom end of the street lamp mounting rod and each of the connecting rods, the street lamp mounting rod, each of the connecting rods and the street lamp mounting base are connected via the connecting assembly, and the connecting assembly includes an elastically arranged plug rod; A releasing assembly is used to release the connection between the street lamp mounting rod and the connecting rod and between each connecting rod and the connecting rod and the street lamp mounting base. The releasing assembly includes a threaded rod arranged at a position corresponding to the connecting assembly on each connecting rod and the street lamp mounting base.

[0005] Preferably, the center position of the bottom end of the street lamp mounting rod and each of the connecting rods is provided with a first receiving hole, and the insertion rod is inserted into the corresponding first receiving hole; A guide rod is installed on the top of each insertion rod, a countersunk hole is opened at the inner top end of each first receiving hole corresponding to the position of each guide rod, and a first return spring is provided between the top end of the guide rod and the inner top end corresponding to the countersunk hole; A first insertion hole is provided at the upper end of each connecting rod and the street lamp mounting base at a position corresponding to the insertion rod, and each insertion rod is elastically inserted into the corresponding first insertion hole through the first return spring.

[0006] Preferably, the inner side wall of each countersunk hole is provided with a first receiving groove, a fixing block is provided inside each first receiving groove, and a second return spring is provided between the end of each fixing block and the inner side wall of the corresponding first receiving groove, and the fixing block is elastically arranged inside the first receiving groove by the second return spring; A fixing groove is provided on the side wall of each guide rod at a position corresponding to the fixing block, and a chamfered surface is provided on the lower end of the fixing block facing the fixing groove.

[0007] Preferably, each of the connecting rods and the upper end of the street lamp mounting base is provided with at least one set of positioning rods; The bottom ends of the street lamp mounting rod and each of the connecting rods are each provided with a positioning hole at a position corresponding to the corresponding positioning rod, the inner top end of the positioning hole is provided with a second receiving hole, a second holding rod is provided inside the second receiving hole, and a third return spring is provided between the top of the second holding rod and the inner top end of the second receiving hole, and the second holding rod is elastically arranged inside the second receiving hole by the third return spring; A first through hole is provided between the side wall of the second receiving hole and the corresponding first receiving groove. A pull rope is provided inside the first through hole. Both ends of the pull rope are respectively connected to the end of the corresponding fixing block and the side wall of the corresponding second supporting rod.

[0008] Preferably, a second insertion hole is provided at the bottom of each of the insertion rods, and a first supporting rod is provided inside each of the first insertion holes at a position corresponding to the second insertion hole. A third receiving hole is provided at the inner top of each of the second insertion holes, a first air storage bag is provided inside each of the third receiving holes, and a fourth return spring is provided inside the first air storage bag.

[0009] Preferably, a fourth receiving hole is formed on both side walls of the bottom end of each of the insertion rods, a limit block is provided inside each of the fourth receiving holes, and a sixth return spring is provided between the end of each limit block and the interior of the corresponding fourth receiving hole, and the limit block is elastically arranged inside the fourth receiving hole by the sixth return spring; A limiting groove is provided inside each of the first insertion holes at a position corresponding to the limiting block.

[0010] Preferably, a second air storage bag is provided between each of the limit blocks and the corresponding fourth receiving hole, and a first exhaust pipe is provided between the second air storage bag and the corresponding first air storage bag; An air storage cavity is defined within the insertion rod at a position corresponding to the first air storage bag, a sealing plate is defined within the air storage cavity, and a fifth return spring is defined between an end of the sealing plate and an inner top end of the air storage cavity. The sealing plate is elastically disposed within the air storage cavity by the fifth return spring, and a second exhaust duct is defined between an end of the air storage cavity and the first exhaust duct. The elastic force of the fifth return spring is greater than the elastic force of the sixth return spring.

[0011] Preferably, a threaded groove is provided on the outer surface of each of the connecting rods and the street lamp mounting base at a position corresponding to the limit block, the threaded groove is connected to the corresponding fourth receiving hole, and the threaded rod is screwed into the inside of the threaded groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention fixes and installs the street lamp body by the cooperation of the street lamp mounting rod, multiple connecting rods and the street lamp mounting base, and determines the height of the street lamp body by increasing or decreasing the number of connecting rods. When splicing the street lamp mounting rod and the connecting rod, the connecting rod and the connecting rod, and the connecting rod and the street lamp mounting base, the street lamp mounting rod and the positioning rod at the bottom of the connecting rod are inserted into the positioning holes at the top of the connecting rod and the street lamp mounting base. At this time, the positioning rod can abut the second abutting rod, and the second abutting rod drives the fixing block to move out of the fixing groove through the pull rope. At this time, the guide rod drives the insertion rod to be inserted into the first insertion hole at the top of the adjacent connecting rod or the street lamp mounting base through the first return spring. At the same time, under the abutment of the first abutting rod on the first air storage airbag, the first air storage airbag is compressed, and the air in the first air storage airbag is discharged to the inside of the second air storage airbag through the first exhaust pipe. The expansion of the second air storage airbag pushes the limiting block to be inserted into the limiting groove, thereby completing the splicing of the street lamp mounting rod and the connecting rod, the connecting rod and the connecting rod, and the connecting rod and the street lamp mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure at center A; Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 5 for Figure 3 A magnified schematic diagram of the structure at point C in the middle; Figure 6 for Figure 3 A magnified schematic diagram of the structure at D in the middle; Figure 7 for Figure 3 A magnified schematic diagram of the structure at E in the middle; Figure 8 Schematic diagram of the top cross-section of the connecting rod structure of the present invention; Figure 9 It is a cross-sectional schematic diagram of the connecting rod structure of the present invention when connected.

[0014] In the picture: 1. Streetlight mounting pole; 2. Streetlight body; 3. Connecting rod; 4. Streetlight mounting base; 5. Positioning hole; 6. Positioning rod; 7. Countersunk hole; 8. First return spring; 9. First receiving hole; 10. Guide rod; 11. Fixing slot; 12. Insertion rod; 13. First insertion hole; 14. First supporting rod; 15. First receiving slot; 16. Fixing block; 17. Beveled surface; 18. Second return spring; 19. First through hole; 20. Pull cord; 21. Second receiving hole 22. Second supporting rod; 23. Third return spring; 24. Third receiving hole; 25. First air storage bag; 26. Fourth return spring; 27. First exhaust pipe; 28. Air storage chamber; 29. ​​Fifth return spring; 30. Sealing plate; 31. Second exhaust pipe; 32. Fourth receiving hole; 33. Second air storage bag; 34. Sixth return spring; 35. Limit block; 36. Limit groove; 37. Threaded groove; 38. Threaded rod; 39. Second jack. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0017] like Figure 1-9 As shown, the present application provides an adjustable street lamp bracket, including a street lamp mounting pole 1, on which a street lamp body 2 is provided. It is characterized in that it also includes: Connecting rods 3, which are provided in multiple groups. The multiple groups of connecting rods 3 are connected to each other, and the bottom end of the bottom connecting rod 3 is connected to the street lamp mounting base 4; The connecting assembly is arranged at the bottom ends of the street light mounting pole 1 and each connecting pole 3. The street light mounting pole 1, each connecting pole 3 and the street light mounting base 4 are connected through the connecting assembly. The connecting assembly includes an elastically arranged plug rod 12.

[0018] In this embodiment: multiple groups of connecting rods 3 and street lamp mounting rods 1 and street lamp mounting base 4 are connected through connecting components, so as to fix the street lamp body 2 to a specified position, and the height of the street lamp body 2 is controlled by increasing or decreasing the number of connecting rods 3.

[0019] Specifically, such as Figure 2-Figure 5As shown, the center position of the bottom end of the street lamp mounting rod 1 and each connecting rod 3 is provided with a first receiving hole 9, and the insertion rod 12 is inserted into the interior of each corresponding first receiving hole 9; A guide rod 10 is installed on the top of each insertion rod 12, and a countersunk hole 7 is opened at the inner top of each first receiving hole 9 corresponding to the position of each guide rod 10, and a first return spring 8 is provided between the top of the guide rod 10 and the inner top of the corresponding countersunk hole 7; The first return spring 8 enables the insertion rod 12 to be elastically inserted into the interior of each corresponding first receiving hole 9 .

[0020] A first insertion hole 13 is formed at the upper end of each connecting rod 3 and the street lamp mounting base 4 at a position corresponding to the corresponding insertion rod 12. Each insertion rod 12 is elastically inserted into the corresponding first insertion hole 13 via a first return spring 8. When the street lamp mounting rod 1 is spliced ​​with the connecting rod 3 , the connecting rod 3 is spliced ​​with the connecting rod 3 , and the connecting rod 3 is spliced ​​with the street lamp mounting base 4 , the insertion rod 12 can be ejected into the corresponding first insertion hole 13 by the first return spring 8 .

[0021] A first receiving groove 15 is formed on the inner side wall of each countersunk hole 7. A fixing block 16 is disposed inside each first receiving groove 15. A second return spring 18 is disposed between the end of each fixing block 16 and the inner side wall of the corresponding first receiving groove 15. The fixing block 16 is elastically disposed inside the first receiving groove 15 by the second return spring 18. The elastically arranged fixing block 16 cooperates with the fixing groove 11 to limit and fix the elastically arranged insertion rod 12. When not splicing, the elastically arranged insertion rod 12 is received in the interior of the first receiving hole 9. A fixing groove 11 is formed on the side wall of each guide rod 10 at a position corresponding to the corresponding fixing block 16, and a chamfered surface 17 is formed on the lower end of the fixing block 16 facing the fixing groove 11. During disassembly, the insertion rod 12 can be directly pressed against the inside of the first receiving hole 9. Since the lower end of the fixing block 16 facing the fixing groove 11 is provided with a beveled surface 17, when the insertion rod 12 is pressed, the top of the guide rod 10 can press against the fixing block 16 toward one side, and the fixing block 16 cannot limit the guide rod 10.

[0022] At least one set of positioning rods 6 is provided on the upper end of each connecting rod 3 and the street lamp mounting base 4; The setting of the positioning rod 6 can prevent the street lamp mounting rod 1 and the connecting rod 3, the connecting rod 3 and the connecting rod 3, and the connecting rod 3 and the street lamp mounting base 4 from rotating, thereby causing the street lamp body 2 to rotate; The bottom ends of the street lamp mounting rod 1 and each connecting rod 3 are provided with positioning holes 5 at positions corresponding to the corresponding positioning rods 6. The top end of the positioning hole 5 is provided with a second receiving hole 21. A second supporting rod 22 is provided inside the second receiving hole 21. A third return spring 23 is provided between the top of the second supporting rod 22 and the top end of the second receiving hole 21. The second supporting rod 22 is elastically arranged inside the second receiving hole 21 by the third return spring 23. When the positioning rod 6 is inserted into the positioning hole 5, the positioning rod 6 can abut against the second abutting rod 22; A first through hole 19 is defined between the side wall of the second receiving hole 21 and the corresponding first receiving groove 15. A pull rope 20 is disposed within the first through hole 19. The two ends of the pull rope 20 are connected to the end of the corresponding fixing block 16 and the side wall of the corresponding second supporting rod 22, respectively. In this embodiment: the elastically arranged insertion rod 12 is received inside the first receiving hole 9 with the cooperation of the fixing groove 11 and the fixing block 16. When the street lamp mounting rod 1 and the connecting rod 3 or the connecting rod 3 and the connecting rod 3 are spliced, the positioning rod 6 at the bottom of the street lamp mounting rod 1 and the connecting rod 3 is inserted into the positioning hole 5 at the top of the connecting rod 3 and the street lamp mounting base 4. At this time, the positioning rod 6 can abut the second abutting rod 22, and the second abutting rod 22 drives the fixing block 16 out of the fixing groove 11 through the pull rope 20. At this time, the guide rod 10 drives the insertion rod 12 through the first return spring 8 to be inserted into the first insertion hole 13 on the top of the adjacent connecting rod 3 or the street lamp mounting base 4.

[0023] Specifically, such as Figure 6-Figure 9 As shown, a second insertion hole 39 is provided at the bottom of each insertion rod 12, and a first supporting rod 14 is provided inside each first insertion hole 13 at a position corresponding to the second insertion hole 39; A third receiving hole 24 is formed at the top of each second insertion hole 39. A first air storage bag 25 is disposed inside each third receiving hole 24. A fourth return spring 26 is disposed inside the first air storage bag 25. Each of the insertion rods 12 has a fourth receiving hole 32 formed on both sides of the sidewalls at the bottom end thereof. A limit block 35 is disposed inside each of the fourth receiving holes 32 , and a sixth return spring 34 is disposed between the end of each limit block 35 and the interior of the corresponding fourth receiving hole 32 . The limit block 35 is elastically disposed inside the fourth receiving hole 32 by the sixth return spring 34 . A limiting slot 36 is defined inside each first insertion hole 13 at a position corresponding to the limiting block 35 .

[0024] A second air storage bag 33 is provided between each limit block 35 and the corresponding fourth receiving hole 32 , and a first exhaust pipe 27 is provided between the second air storage bag 33 and the corresponding first air storage bag 25 ; An air storage chamber 28 is defined within the insertion rod 12 at a position corresponding to the first air storage bag 25. A sealing plate 30 is disposed within the air storage chamber 28. A fifth return spring 29 is disposed between the end of the sealing plate 30 and the top end of the air storage chamber 28. The sealing plate 30 is elastically disposed within the air storage chamber 28 by the fifth return spring 29. A second exhaust duct 31 is defined between the end of the air storage chamber 28 and the first exhaust duct 27. The elastic force of the fifth return spring 29 is greater than the elastic force of the sixth return spring 34; In this embodiment: when the guide rod 10 drives the insertion rod 12 through the first return spring 8 to be inserted into the first insertion hole 13 on the top of the adjacent connecting rod 3 or the street lamp mounting base 4, the first air storage airbag 25 is compressed under the support of the first supporting rod 14 on the first air storage airbag 25, and the air inside the first air storage airbag 25 is discharged to the inside of the second air storage airbag 33 through the first exhaust pipe 27. The second air storage airbag 33 expands and pushes the limit block 35 to be inserted into the limit groove 36, completing the splicing of the street lamp mounting rod 1 and the connecting rod 3, the connecting rod 3 and the connecting rod 3, and the connecting rod 3 and the street lamp mounting base 4.

[0025] Specifically, such as Figure 7 As shown, a threaded groove 37 is provided on the outer surface of each connecting rod 3 and the street lamp mounting base 4 at the position corresponding to the corresponding limit block 35 . The threaded groove 37 is connected to the corresponding fourth receiving hole 32 , and the threaded rod 38 is screwed into the inside of the threaded groove 37 .

[0026] In this embodiment: when disassembly is required, screw the threaded rod 38, and the limit block 35 is pushed out of the inside of the limit groove 36 through the threaded rod 38. At this time, the internal gas of the second air storage airbag 33 is discharged to the inside of the air storage chamber 28 through the second exhaust pipe 31, and then the street lamp mounting rod 1 and the connecting rod 3, the connecting rod 3 and the connecting rod 3 and the street lamp mounting base 4 are disassembled. At this time, the positioning rod 6 no longer resists the second resisting rod 22, and the first resisting rod 14 no longer resists the first air storage airbag 25. Then the insertion rod 12 is pushed back to the inside of the first receiving hole 9, and the guide rod 10 continues to be limited by the elastically arranged fixing block 16.

[0027] The specific solution is as follows: the street lamp body 2 is fixedly installed by cooperating with the street lamp mounting pole 1 and multiple groups of connecting poles 3 and the street lamp mounting base 4. The height of the street lamp body 2 is determined by increasing or decreasing the number of connecting poles 3. When the street lamp mounting pole 1 and the connecting pole 3, the connecting pole 3 and the connecting pole 3, and the connecting pole 3 and the street lamp mounting base 4 are spliced, the positioning pole 6 at the bottom of the street lamp mounting pole 1 and the connecting pole 3 is inserted into the positioning hole 5 at the top of the connecting pole 3 and the street lamp mounting base 4. At this time, the positioning pole 6 can abut the second abutting pole 22, and the second abutting pole 22 drives the fixing block 16 from the fixed position through the pull rope 20. The fixed groove 11 is moved out. At this time, the guide rod 10 drives the insertion rod 12 through the first return spring 8 to be inserted into the first socket 13 on the top of the adjacent connecting rod 3 or the street lamp mounting base 4. At the same time, under the support of the first supporting rod 14 on the first air storage airbag 25, the first air storage airbag 25 is compressed, and the air inside the first air storage airbag 25 is discharged to the inside of the second air storage airbag 33 through the first exhaust pipe 27. The second air storage airbag 33 expands and pushes the limit block 35 to be inserted into the limit groove 36, completing the splicing of the street lamp mounting rod 1 and the connecting rod 3, the connecting rod 3 and the connecting rod 3, and the connecting rod 3 and the street lamp mounting base 4.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the scope of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0029] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An adjustable street lamp bracket, comprising a street lamp mounting rod (1), wherein a street lamp body (2) is provided on the street lamp mounting rod (1): characterized in that, Also includes: Connecting rods (3), wherein the connecting rods (3) are provided in multiple groups, the multiple groups of connecting rods (3) are connected to each other, and the bottom end of the connecting rod (3) at the bottom layer is connected to a street lamp mounting base (4); A connecting assembly is provided at the bottom ends of the street light mounting rod (1) and each of the connecting rods (3), the street light mounting rod (1) and each of the connecting rods (3) and the street light mounting base (4) are connected via the connecting assembly, and the connecting assembly includes an elastically arranged plug rod (12); A releasing assembly is provided for releasing the connection between the street light mounting rod (1) and the connecting rod (3), and between each of the connecting rods (3) and the connecting rod (3) and the street light mounting base (4), the releasing assembly comprising a threaded rod (38) provided at a position of each of the connecting rods (3) and the street light mounting base (4) corresponding to the connection assembly.

2. The adjustable street lamp bracket according to claim 1, characterized in that: The center position of the bottom end of the street lamp mounting rod (1) and each of the connecting rods (3) is provided with a first receiving hole (9), and the insertion rod (12) is inserted into the interior of each corresponding first receiving hole (9); A guide rod (10) is installed on the top of each of the insertion rods (12), a countersunk hole (7) is provided at the inner top end of each of the first receiving holes (9) at a position corresponding to the position of each of the guide rods (10), and a first return spring (8) is provided between the inner top end of the guide rod (10) and the corresponding countersunk hole (7); A first insertion hole (13) is provided at the upper end of each connecting rod (3) and the street lamp mounting base (4) at a position corresponding to the insertion rod (12), and each insertion rod (12) is elastically inserted into the corresponding first insertion hole (13) via the first return spring (8).

3. The adjustable street lamp bracket according to claim 2, characterized in that: The inner side wall of each of the countersunk holes (7) is provided with a first receiving groove (15), a fixing block (16) is provided inside each of the first receiving grooves (15), and a second return spring (18) is provided between the end of each of the fixing blocks (16) and the inner side wall of the corresponding first receiving groove (15), and the fixing block (16) is elastically arranged inside the first receiving groove (15) by the second return spring (18); A fixing groove (11) is provided on the side wall of each guide rod (10) at a position corresponding to the fixing block (16), and a chamfered surface (17) is provided on the lower end of the fixing block (16) facing the fixing groove (11).

4. The adjustable street lamp bracket according to claim 3, characterized in that: At least one set of positioning rods (6) is provided at the upper end of each of the connecting rods (3) and the street lamp mounting base (4); The bottom ends of the street light mounting rod (1) and each of the connecting rods (3) are provided with positioning holes (5) at positions corresponding to the positioning rods (6); the inner top end of the positioning hole (5) is provided with a second receiving hole (21); the interior of the second receiving hole (21) is provided with a second supporting rod (22); and a third return spring (23) is provided between the top of the second supporting rod (22) and the inner top end of the second receiving hole (21); the second supporting rod (22) is elastically provided inside the second receiving hole (21) by the third return spring (23); A first through hole (19) is provided between the side wall of the second receiving hole (21) and the corresponding first receiving groove (15), and a pull rope (20) is provided inside the first through hole (19), and two ends of the pull rope (20) are respectively connected to the end of the corresponding fixing block (16) and the side wall of the corresponding second supporting rod (22).

5. The adjustable street lamp bracket according to claim 2, characterized in that: A second insertion hole (39) is provided at the bottom of each of the insertion rods (12), and a first supporting rod (14) is provided inside each of the first insertion holes (13) at a position corresponding to the second insertion hole (39); A third receiving hole (24) is provided at the top end of each second insertion hole (39), a first air storage bag (25) is provided inside each third receiving hole (24), and a fourth return spring (26) is provided inside the first air storage bag (25).

6. The adjustable street lamp bracket according to claim 5, characterized in that: A fourth receiving hole (32) is provided on both side walls of the bottom end of each of the insertion rods (12), a limit block (35) is provided inside each of the fourth receiving holes (32), and a sixth return spring (34) is provided between the end of each limit block (35) and the inside of the corresponding fourth receiving hole (32), and the limit block (35) is elastically provided inside the fourth receiving hole (32) by the sixth return spring (34); A limiting groove (36) is provided inside each of the first insertion holes (13) at a position corresponding to the limiting block (35).

7. The adjustable street lamp bracket according to claim 6, characterized in that: A second air storage bag (33) is provided between each of the limit blocks (35) and the corresponding fourth receiving hole (32), and a first exhaust pipe (27) is provided between the second air storage bag (33) and the corresponding first air storage bag (25); An air storage cavity (28) is provided inside the insertion rod (12) at a position corresponding to the first air storage airbag (25), a sealing plate (30) is provided inside the air storage cavity (28), and a fifth return spring (29) is provided between an end of the sealing plate (30) and an inner top end of the air storage cavity (28), the sealing plate (30) is elastically provided inside the air storage cavity (28) by the fifth return spring (29), and a second exhaust pipe (31) is provided between an end of the air storage cavity (28) and the first exhaust pipe (27); The elastic force of the fifth return spring (29) is greater than the elastic force of the sixth return spring (34).

8. The adjustable street lamp bracket according to claim 7, characterized in that: A threaded groove (37) is provided on the outer surface of each of the connecting rods (3) and the street lamp mounting base (4) at a position corresponding to the limit block (35), the threaded groove (37) is communicated with the corresponding fourth receiving hole (32), and the threaded rod (38) is screwed into the interior of the threaded groove (37).

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