CN217423167U

CN217423167U - Landscape lamp fixing device for public areas of buildings

Info

Publication number: CN217423167U
Application number: CN202221525322.4U
Authority: CN
Inventors: 刘知己
Original assignee: Hecheng Design Group Co ltd
Current assignee: Hecheng Design Group Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-13
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to a building public area landscape lamp fixing device, including supporting component and angle adjusting part. The supporting assembly comprises a base, a first supporting pipe driven shaft and a driving shaft; a driven gear sleeved on the driven shaft is meshed and connected with a driving gear sleeved on the driving shaft; the angle adjusting component comprises a second supporting pipe, a supporting rod and a fixing frame; the fixed frame is provided with a lamp, the rear end of the lamp is hinged with a sliding block through an auxiliary rod, and the sliding block is fixedly arranged on the screw rod; the lower end of the screw is assembled in the inner hole of the rotating ring through threads; and the driven bevel gear coaxially fixed at the top of the rotating ring is meshed and connected with the driving bevel gear on the outer side of the driven bevel gear. The utility model adjusts the irradiation position of the lamp in the horizontal direction by the engagement between the driving gear and the driven gear; through the meshing between driven bevel gear and the initiative bevel gear to adjust the position that shines of lamps and lanterns vertical direction, and then effectively increase the illumination zone of lamps and lanterns, improve its practicality.

Description

Landscape lamp fixing device for public area of building

Technical Field

The utility model relates to a view design technical field especially relates to a public regional landscape lamp fixing device of building.

Background

The landscape lamp is an outdoor decorative lighting lamp, has both ornamental and lighting properties, and is an indispensable part in modern landscape. The artistic lamp has high ornamental value and emphasizes the coordination and unification of the landscape of the artistic lamp, the historical culture of scenic spots and the surrounding environment. The landscape lamp uses different shapes, different light colors and brightness to make a landscape. For example, a red lantern-shaped landscape lamp brings a festive atmosphere for a square, and a green coconut tree lamp stands up a tropical landscape beside a pool. The landscape lamp is suitable for landscape places such as squares, residential areas, public greenbelts and the like.

Landscape lamps are classified into various categories, including street lamps, footlights, footpaths and garden lamps, high-pole lamps, low-level lamps, projection lamps, street lamp post decorative landscape lamps, lamplight pintles, downlights, underground lamps, wall lamps, underwater lamps, embedded lamps, optical fiber lighting systems, solar lamps and the like. The landscape lamps are various in types and structures, the difficulty in installation and construction of part of the landscape lamps is high, the landscape lamps need to be operated by multiple persons in a matching mode, and the stability is low; the illumination angle and the illumination direction of the landscape lamp are inconvenient to adjust, and the landscape lamp cannot be adjusted along with a use scene, so that the practicability is lower.

At present, no effective solution is provided aiming at the problems of inconvenient adjustment of the irradiation angle and the irradiation direction, lower stability and the like in the related technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough among the prior art, provide a public regional landscape lamp fixing device of building to solve the illumination angle that exists among the correlation technique and adjust inconvenient, the lower scheduling problem of steadiness with the direction of illumination.

In order to achieve the purpose, the utility model adopts the technical proposal that:

the utility model provides a building public area landscape lamp fixing device, includes supporting component and the angle adjusting part who arranges in proper order from bottom to top, wherein:

the supporting assembly comprises a base and a first supporting pipe arranged at the top of the base, a driven shaft and a driving shaft are vertically arranged in an inner cavity of the first supporting pipe at intervals, a driven gear sleeved on the driven shaft is meshed with a driving gear sleeved on the driving shaft, an adjusting wheel is arranged on the driving shaft, and the outer edge of the adjusting wheel penetrates through a first adjusting opening in the side wall of the first supporting pipe and extends to the outside;

the angle adjusting assembly comprises a second supporting pipe which is rotatably arranged at the top end of the first supporting pipe, and the bottom end of the second supporting pipe is connected with the driven shaft; the top end of the second supporting tube is horizontally provided with a supporting rod, and the far end of the supporting rod is hinged to the fixed frame; a lamp is arranged on the fixing frame, the rear end of the lamp is hinged with a sliding block through an auxiliary rod movably arranged in the guide port in a penetrating manner, and the sliding block is fixedly arranged on a screw rod in the inner cavity of the second supporting pipe; the lower end of the screw rod is in threaded assembly with an inner hole of a rotating ring at the middle lower part of the inner cavity of the second supporting pipe; and the driven bevel gear coaxially fixed at the top of the rotating ring is meshed with the driving bevel gear outside the rotating ring, and the driving bevel gear is provided with an adjusting rod penetrating through a second adjusting opening in the side wall of the second supporting tube.

Furthermore, the driven shaft and the first supporting pipe are coaxially arranged, the bottom end of the driven shaft is rotatably arranged in a clamping groove at the bottom end of the first supporting pipe, and the top end of the driven shaft movably penetrates through the top end of the first supporting pipe to be arranged; a connecting bulge is arranged at the top end of the driven shaft and detachably connected with a connecting clamping groove at the bottom end of the second supporting tube;

the driving shaft is vertically arranged, the bottom end of the driving shaft is rotatably arranged in the clamping groove at the bottom end of the first supporting pipe, and the top end of the driving shaft is rotatably arranged in the clamping groove at the top end of the first supporting pipe.

Furthermore, a fixing groove is formed in the top of the first supporting pipe, and the fixing groove is coaxially sleeved at the bottom end of the second supporting pipe, so that the first supporting pipe can be rotatably arranged.

Furthermore, the driving gear and the adjusting wheel are coaxially arranged on the driving shaft at intervals, and anti-skidding lines are arranged on the peripheral wall of the adjusting wheel.

Furthermore, two bearings are sleeved on the adjusting rod at intervals, the inner ring of each bearing is rotatably connected with the adjusting rod, and the outer ring of each bearing is fixed on the second adjusting opening.

Further, the regulation pole is scalable structure, and it includes: the outer rod is connected with the bearing inner ring, the inner rod is arranged in the inner cavity of the outer rod in a sliding mode, and the outer rod and the inner rod are limited through sliding connection between the clamping grooves and the clamping blocks.

Furthermore, a rotating handle is arranged at one end of the adjusting rod extending to the outside of the second supporting tube.

Furthermore, the far end of the supporting rod is hinged to the connecting rod, the lower end of the connecting rod is of an inverted U-shaped structure, and the two lower ends of the connecting rod are hinged to the two side walls of the fixing frame respectively.

Furthermore, the middle upper part of the screw rod is of a thread-free polish rod structure, and the thread-free polish rod structure is arranged in a sliding groove in the top of the second supporting tube in a sliding mode.

Further, the outer wall of first supporting tube corresponds the position of regulating wheel is provided with the protective sheath, the one end of protective sheath articulate in first supporting tube, its other end with the connection can be dismantled to first supporting tube.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

(1) the landscape lamp fixing device in the public area of the building of the utility model adjusts the irradiation position of the lamp in the horizontal direction through the engagement between the driving gear and the driven gear;

(2) the landscape lamp fixing device in the public area of the building adjusts the irradiation position of the lamp in the vertical direction through the meshing between the driven bevel gear and the driving bevel gear, thereby effectively enlarging the illumination range of the lamp and improving the practicability of the lamp;

(3) the utility model discloses a public regional landscape lamp fixing device of building through the cooperation between first stay tube, driven shaft and the second stay tube to make the stable rotation of lamps and lanterns.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of the landscape lamp fixing device in the public area of the building;

FIG. 2 is a schematic view of a partial cross-sectional structure of the fixing device for landscape lamps in public areas of buildings;

FIG. 3 is a schematic view of a partial cross-sectional structure of a support assembly of the fixing device for landscape lamps in public areas of buildings;

fig. 4 is a schematic perspective view of a first support tube in the fixing device for landscape lamps in public areas of buildings according to the present invention;

FIG. 5 is a schematic view of a partial cross-sectional structure of an angle adjustment assembly of the fixing device for landscape lamps in public areas of buildings according to the present invention;

fig. 6 is a schematic cross-sectional view of a second support tube in the fixing device for landscape lamps in public areas of buildings according to the present invention;

fig. 7 is a schematic view of a partial cross-sectional structure of an inner cavity of a second support tube in the landscape lamp fixing device in a building public area of the utility model;

fig. 8 is the utility model relates to a local section structure sketch map of adjusting pole and rotation handle among building public area landscape lamp fixing device.

Wherein the reference numerals are:

100. a support assembly; 101. a base; 102. a first support tube; 1021. a first regulating port; 1022. fixing the groove; 103. a driven shaft; 104. a drive shaft; 105. a driven gear; 106. a driving gear; 107. an adjustment wheel; 108. protective sleeve

200. An angle adjustment assembly; 201. a second support tube; 2011. a guide port; 2012. a second regulating port; 2013. a limiting groove; 202. a support bar; 203. a fixed mount; 204. an auxiliary lever; 205. a slider; 206. a screw; 207. a rotating ring; 2071. a limiting bulge; 208. a driven bevel gear; 209. a drive bevel gear; 210. adjusting a rod; 2101. a bearing; 2102. an outer pole; 2103. an inner rod; 211. rotating the handle; 212. a connecting rod;

300. a luminaire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

A landscape lamp fixing device for public areas of buildings, as shown in figures 1-6, comprises a supporting component 100 and an angle adjusting component 200 which are arranged from bottom to top in sequence.

The supporting assembly 100 comprises a base 101 and a first supporting tube 102 arranged at the top of the base 101, a driven shaft 103 and a driving shaft 104 are vertically arranged in an inner cavity of the first supporting tube 102 at intervals, a driven gear 105 sleeved on the driven shaft 103 is meshed and connected with a driving gear 106 sleeved on the driving shaft 104, an adjusting wheel 107 is arranged on the driving shaft 104, and the outer edge of the adjusting wheel 107 penetrates through a first adjusting opening 1021 in the side wall of the first supporting tube 102 and extends to the outside; the angle adjusting assembly 200 comprises a second supporting pipe 201 rotatably arranged at the top end of the first supporting pipe 102, and the bottom end of the second supporting pipe 201 is connected with the driven shaft 103; a supporting rod 202 is horizontally arranged at the top end of the second supporting tube 201, and the far end of the supporting rod 202 is hinged to the fixed frame 203; the fixed frame 203 is provided with a lamp 300, the lamp 300 is hinged with a sliding block 205 through an auxiliary rod 204 movably arranged in the guide port 2011 in a penetrating way, and the sliding block 205 is fixedly arranged on a screw rod 206 of the inner cavity of the second supporting pipe 201; the lower end of the screw rod 206 is in threaded fit with the inner hole of the rotating ring 207 at the middle lower part of the inner cavity of the second supporting pipe 201; the driven bevel gear 208 coaxially fixed on the top of the rotating ring 207 is engaged with the drive bevel gear 209 at the outer side thereof, and the drive bevel gear 209 is provided with an adjusting rod 210 penetrating through a second adjusting hole 2012 formed in the side wall of the second support pipe 201.

Specifically, the inner cavity of the second support tube 201 is provided with a slider 205, a screw 206, a rotating ring 207, a driven bevel gear 208, and a drive bevel gear 209.

The adjusting wheel 107 is rotated to drive the driving gear 106 to rotate, so that the driven gear 105 meshed with the driving gear 106 is rotated to drive the second supporting tube 201 to rotate, and the irradiation position of the lamp 300 in the horizontal direction is adjusted; the adjusting rod 210 is rotated to drive the driving bevel gear 209 to rotate, so that the driven bevel gear 208 meshed with the driving bevel gear 209 is rotated to drive the rotating ring 207 to rotate, so that the screw 206 screwed on the rotating ring 207 vertically moves up and down, and slides up and down in the guide port 2011 on the sliding block 205, and then the irradiation position of the lamp 300 in the vertical direction is adjusted. The landscape lamp fixing device for the building public area effectively enlarges the illumination range of the lamp 300.

In some embodiments, the base 101 has a plurality of fixing holes spaced apart from each other for fixing the base 101 to the mounting surface.

In some embodiments, as shown in fig. 7, the sidewall of the bottom end of the rotating ring 207 is provided with a limiting protrusion 2071, and the limiting protrusion 2071 is rotatably connected with the limiting groove 2013 in the second supporting tube 201 to limit the up and down movement of the rotating ring 207.

In some of these embodiments, the second support tube 201 is disposed coaxially with the first support tube 102.

In some embodiments, the sliding block 205 and the screw 206 are coaxially disposed with the rotating ring 207, and the sliding block 205 is slidably connected to the inner wall of the second support tube 201.

Further, the slider 205, the screw 206, and the rotating ring 207 are disposed coaxially with the second support pipe 201.

Further, as shown in fig. 2 to 3, the driven shaft 103 is coaxially disposed with the first supporting tube 102, a bottom end of the driven shaft 103 is rotatably disposed in the slot at the bottom end of the first supporting tube 102, and a top end thereof movably penetrates through a top end of the first supporting tube 102; the top end of the driven shaft 103 is provided with a connecting bulge, and the connecting bulge is detachably connected with a connecting clamping groove at the bottom end of the second supporting pipe 201; the driving shaft 104 is vertically arranged, the bottom end of the driving shaft is rotatably arranged in the clamping groove at the bottom end of the first supporting tube 102, and the top end of the driving shaft is rotatably arranged in the clamping groove at the top end of the first supporting tube 102.

Specifically, the top end of the driven shaft 103 is rotatably inserted through the top end of the first support tube 102; through the detachable connection between the connecting protrusion and the connecting clamping groove, the driven shaft 103 drives the second supporting pipe 201 to rotate.

In some embodiments, bearings are disposed in the locking grooves of the first supporting tube 102, so that the driven shaft 103 and the driving shaft 104 are rotatably disposed at upper and lower ends thereof by using the bearings.

Further, as shown in fig. 2 and 4, in order to enable the second support pipe 201 to rotate smoothly, a fixing groove 1022 is disposed at the top of the first support pipe 102, and the fixing groove 1022 is coaxially sleeved at the bottom end of the second support pipe 201, so that the first support pipe 102 can be rotatably disposed.

Furthermore, as shown in fig. 2 to 3, in order to effectively regulate the rotation of the driven shaft 103, the driving gear 106 and the regulating wheel 107 are coaxially arranged on the driving shaft 104 at intervals, the diameter of the regulating wheel 107 is larger than that of the driven shaft 103, and the outer peripheral wall of the regulating wheel 107 is provided with anti-slip threads, so that the regulating wheel 107 can be easily stirred to rotate from the outside.

When the manual adjusting device is used, the adjusting wheel 107 can be manually stirred to rotate through the anti-skidding threads arranged on the outer peripheral wall of the adjusting wheel 107, the adjusting wheel 107 drives the driving gear 106 to rotate, and then the driven gear 105 meshed and connected with the driving gear 106 rotates; the driven gear 105 drives the driven shaft 103 to rotate, and the driven shaft 103 drives the second supporting pipe 201 to rotate, namely, the rotation of the angle adjusting assembly 200 is indirectly realized. Or, as required, the same as the adjusting mechanism in the angle adjusting assembly 200, and the adjusting wheel 107 may also be a bevel gear, and a corresponding rotation adjusting rod, a driving bevel gear and a rotation handle are provided, so as to improve the convenience of operation.

In some of these embodiments, the adjustment wheel 107 is located above the driving gear 106, and the adjustment wheel 107 is not in contact with the driven shaft 103.

Further, as shown in fig. 2, 5 to 6, and 8, in order to enable the adjustment lever 210 to drive the driving bevel gear 209 to rotate smoothly, two bearings 2101 are disposed on the adjustment lever 210 at intervals, an inner ring of the bearing 2101 is rotatably connected with the adjustment lever 210, and an outer ring thereof is fixed on the second adjustment opening 2012.

Specifically, the adjustment lever 210 is smoothly rotated by the two bearings 2101.

Further, as shown in fig. 8, the adjusting lever 210 is a telescopic structure, which includes: an outer rod 2102 connected with the inner ring of the bearing 2101 and an inner rod 2103 arranged in the inner cavity of the outer rod 2102 in a sliding mode, wherein the outer rod 2102 and the inner rod 2103 are limited through sliding connection between clamping grooves and clamping blocks.

Specifically, the inner cavity of the outer rod 2102 is symmetrically provided with two clamping grooves along the length direction thereof, and one end of the inner rod 2103, which is located in the inner cavity of the outer rod 2102, is symmetrically provided with two clamping blocks, and the clamping blocks are respectively in sliding connection with the corresponding clamping grooves. The length of the clamping groove is greater than that of the clamping block, so that the inner rod 2103 can slide in the inner cavity of the outer rod 2102; through the connection between the clamping groove and the clamping block, the adjusting rod 210 integrally rotates, and the outer rod 2102 and the inner rod 2103 are relatively static.

In some of these embodiments, the adjustment lever 210 is provided as a retractable structure in order to prevent inadvertent contact with the adjustment lever 210. When the adjusting rod 210 needs to be used, the inner rod 2103 is pulled outwards to prolong the length of the adjusting rod 210; the inner rod 2103 is rotated, the outer rod 2102 is driven to rotate through connection between the clamping grooves and the clamping blocks, and then the driving bevel gear 209 is rotated. When the adjustment lever 210 is not needed, the inner rod 2103 is pushed inward to shorten the length of the adjustment lever 210, thereby preventing the occurrence of accidental touch.

Further, as shown in fig. 2, 5 to 6, and 8, in order to facilitate the rotation of the adjustment lever 210, a rotation handle 211 is provided at one end of the adjustment lever 210 extending to the outside of the second support pipe 201.

Specifically, the end of the inner rod 2103 extending outside the second support tube 201 is provided with a rotation handle 211.

Further, as shown in fig. 1 to 2 and 5, the distal end of the supporting rod 202 is hinged to the connecting rod 212, and the lower end of the connecting rod 212 is in an inverted U-shaped structure, and the two lower ends thereof are hinged to the two side walls of the fixing frame 203 respectively.

Further, as shown in fig. 2, 5 and 7, in order to make the screw rod 206 move up and down smoothly, the middle upper portion of the screw rod 206 is a threadless polish rod structure, which is slidably disposed in the sliding groove at the top of the second support pipe 201.

Further, as shown in fig. 1 to 2, in order to avoid the adjustment wheel 107 from being touched by mistake, a protective sleeve 108 is disposed on the outer wall of the first support tube 102 at a position corresponding to the adjustment wheel 107, one end of the protective sleeve 108 is hinged to the first support tube 102, and the other end of the protective sleeve is detachably connected to the first support tube 102.

The utility model discloses a use method as follows:

when the device is used, the adjusting wheel 107 is rotated to drive the driving gear 106 to rotate, and then the driven gear 105 meshed with the driving gear 106 is rotated;

the driven gear 105 drives the driven shaft 103 to rotate, and the driven shaft 103 drives the second support tube 201 to rotate, so as to adjust the horizontal irradiation position of the lamp 300.

The rotating handle 211 is pulled outwards to drive the inner rod 2103 to slide outwards, so as to extend the length of the adjusting rod 210;

the rotating handle 211 is rotated, the outer rod 2102 is driven to rotate through the limit between the clamping groove and the clamping block, and then the rotating of the adjusting rod 210 is achieved;

the adjusting rod 210 is rotated to drive the driving bevel gear 209 to rotate, so that the driven bevel gear 208 meshed and connected with the driving bevel gear 209 rotates;

the driven bevel gear 208 drives the rotating ring 207 to rotate, so that the screw 206 which is threaded on the rotating ring 207 moves vertically up and down;

the screw 206 drives the slider 205 to slide up and down in the guide opening 2011, so as to adjust the relative position of the auxiliary rod 204, thereby adjusting the irradiation position of the lamp 300 in the vertical direction.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. The utility model provides a building public area landscape lamp fixing device which characterized in that includes supporting component (100) and angle adjusting component (200) that arrange in proper order from bottom to top, wherein:

the supporting assembly (100) comprises a base (101) and a first supporting pipe (102) arranged at the top of the base (101), a driven shaft (103) and a driving shaft (104) are vertically arranged in an inner cavity of the first supporting pipe (102) at intervals, a driven gear (105) sleeved on the driven shaft (103) is meshed with a driving gear (106) sleeved on the driving shaft (104) and connected with the driving gear, an adjusting wheel (107) is arranged on the driving shaft (104), and the outer edge of the adjusting wheel (107) penetrates through a first adjusting hole (1021) in the side wall of the first supporting pipe (102) and extends to the outside;

the angle adjusting assembly (200) comprises a second supporting pipe (201) which is rotatably arranged at the top end of the first supporting pipe (102), and the bottom end of the second supporting pipe (201) is connected with the driven shaft (103); a supporting rod (202) is horizontally arranged at the top end of the second supporting tube (201), and the far end of the supporting rod (202) is hinged to the fixed frame (203); a lamp (300) is arranged on the fixed frame (203), the rear end of the lamp (300) is hinged with a sliding block (205) through an auxiliary rod (204) movably arranged in a guide port (2011) in a penetrating manner, and the sliding block (205) is fixedly arranged on a screw rod (206) of the inner cavity of the second supporting pipe (201); the lower end of the screw rod (206) is in threaded assembly with an inner hole of a rotating ring (207) at the middle lower part of the inner cavity of the second supporting pipe (201); a driven bevel gear (208) coaxially fixed at the top of the rotating ring (207) is meshed with a driving bevel gear (209) on the outer side of the rotating ring, and the driving bevel gear (209) is provided with an adjusting rod (210) penetrating through a second adjusting hole (2012) on the side wall of the second supporting tube (201).

2. The fixing device for landscape lamps in the building public area as claimed in claim 1, wherein the driven shaft (103) is coaxially arranged with the first supporting tube (102), the bottom end of the driven shaft (103) is rotatably arranged in a clamping groove at the bottom end of the first supporting tube (102), and the top end thereof is movably arranged through the top end of the first supporting tube (102); a connecting bulge is arranged at the top end of the driven shaft (103), and the connecting bulge is detachably connected with a connecting clamping groove at the bottom end of the second supporting pipe (201);

the driving shaft (104) is vertically arranged, the bottom end of the driving shaft is rotatably arranged in a clamping groove at the bottom end of the first supporting pipe (102), and the top end of the driving shaft is rotatably arranged in a clamping groove at the top end of the first supporting pipe (102).

3. The fixing device for landscape lamps in the building public area as claimed in claim 1, wherein a fixing groove (1022) is provided at the top of the first support pipe (102), and the fixing groove (1022) is coaxially sleeved at the bottom end of the second support pipe (201) so that the first support pipe (102) can be rotatably provided.

4. The fixing device for landscape lamps in the public areas of buildings according to claim 1, wherein the driving gear (106) and the adjusting wheel (107) are coaxially arranged on the driving shaft (104) at intervals, and the outer peripheral wall of the adjusting wheel (107) is provided with anti-skid lines.

5. A landscape lamp fixing device for building public areas according to claim 1, wherein two bearings (2101) are arranged on the adjusting rod (210) at intervals, the inner ring of the bearing (2101) is rotatably connected with the adjusting rod (210), and the outer ring of the bearing is fixed on the second adjusting port (2012).

6. The building public area landscape lamp fixing device of claim 5, wherein the adjusting lever (210) is a telescopic structure comprising: the outer rod (2102) is connected with the inner ring of the bearing (2101), the inner rod (2103) is arranged in the inner cavity of the outer rod (2102) in a sliding mode, and the outer rod (2102) and the inner rod (2103) are limited through sliding connection between the clamping grooves and the clamping blocks.

7. A building public area landscape lamp fixing device according to claim 5, wherein a rotating handle (211) is provided on one end of the adjusting lever (210) extending to the outside of the second supporting pipe (201).

8. The fixing device for landscape lamps in the building public area as claimed in claim 1, wherein the distal end of the supporting rod (202) is hinged with a connecting rod (212), and the lower end of the connecting rod (212) is in an inverted U-shaped structure, and the two lower ends are hinged with the two side walls of the fixing frame (203).

9. A building public area landscape lamp fixing device according to claim 1, wherein the middle upper part of the screw rod (206) is a threadless polish rod structure which is slidably arranged in a sliding groove at the top of the second supporting pipe (201).

10. A landscape lamp fixing device for building public areas according to claim 1, wherein a protective sleeve (108) is arranged on the outer wall of the first supporting tube (102) corresponding to the position of the adjusting wheel (107), one end of the protective sleeve (108) is hinged to the first supporting tube (102), and the other end of the protective sleeve is detachably connected with the first supporting tube (102).