Air column type lighting device

Abstract

The utility model discloses an air column type lighting device, which relates to the technical field of air column lamps and comprises a lamp component. The lamp assembly is arranged on the fixing support; the supporting assembly is arranged at the end, away from the lamp assembly, of the fixing support, the supporting assembly is connected to the fixing support, and the supporting assembly is provided with an opening position and a containing position which are used for supporting the lamp assembly; the technical scheme provided by the utility model has the technical effects that the supporting component is arranged at one end, far away from the lamp component, of the fixed bracket, and is connected to the fixed bracket, so that the supporting component can be positioned at an opening position for supporting the lamp component and a storage position for conveniently carrying the lamp component and the fixed bracket; therefore, in the using state, the supporting assembly makes contact with the ground so as to support the lamp assembly and the fixing support, and the stability of the lamp in the using state is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air column lamps, and particularly relates to an air column type lighting device. Background Art

[0002] As a lighting tool that combines technology and artistic beauty, an air column lamp can provide different environmental atmospheres for a space. The air column lamp has the characteristic of a wide range of applications, such as in families, offices, shopping malls, etc. The air column lamp is often used to provide sufficient light to meet the lighting needs of people in different environments.

[0003] When the air column lamp is placed in a family, commercial space or outdoor environment, it will inevitably encounter various external forces, such as the external force of the gentle breeze of an air conditioner, the touch of a child or an accidental collision. Due to the design of the air column lamp with a relatively high center of gravity and a narrow base, under these external forces, especially when the air column lamp is applied on an uneven ground, the air column lamp is prone to tilt or shake, thereby affecting the beauty and lighting effect, and causing the air column lamp to be damaged, thus shortening the service life of the air column lamp. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an air column type lighting device, aiming to improve the stability of the air column lamp during use.

[0005] To achieve the above purpose, the air column type lighting device proposed by the utility model includes a lamp assembly;

[0006] A fixing bracket, on which the lamp assembly is arranged; and

[0007] A support assembly, which is arranged at one end of the fixing bracket away from the lamp assembly, the support assembly is connected to the fixing bracket, and the support assembly has an open position and a storage position for supporting the lamp assembly.

[0008] In one embodiment, the fixing bracket includes a framework, and a top plate and a bottom plate respectively arranged on both sides in the height direction of the framework. The lamp assembly is arranged on the top plate, and the support assembly is connected to the bottom plate.

[0009] In one embodiment, the fixing bracket further includes a plurality of first connecting pieces. The framework includes a plurality of columns and a plurality of cross beams. The columns and the cross beams both have a plurality of grooves, and the plurality of grooves are arranged at intervals along the circumferences of the columns or the cross beams. The outer side wall of the first connecting piece is provided with a clamping portion, and the clamping portion is clamped in the groove, so that any adjacent columns and cross beams are spliced through the first connecting piece.

[0010] In one embodiment, the support assembly includes support feet, connecting rods, and a fixing base. The fixing base is disposed on the fixing bracket. The connecting rod is rotatably hinged to the fixing base, and the support feet are connected to the connecting rod.

[0011] In one embodiment, the air column lighting device further includes a first fastener. The fixing base includes a first side plate and a second side plate connected to each other. Both the first side plate and the second side plate have mounting holes. The first fastener passes through the mounting holes and is clamped in the groove, so that the first side plate or the second side plate is connected to the framework on the side close to the bottom plate.

[0012] And / or, the support foot includes a body having a driving portion and a threaded portion. The driving portion is connected to the threaded portion. The threaded portion is threadedly connected to one end of the connecting rod. The driving portion is used to drive the threaded portion to move up and down relative to the connecting rod.

[0013] In one embodiment, the air column lighting device further includes a support rod disposed on the fixing bracket. The lamp assembly includes a lamp shade and a lamp body disposed inside the lamp shade. The lamp body is located at one end of the lamp shade away from the fixing bracket. One end of the lamp shade is connected to the fixing bracket, and the other end of the lamp shade is connected to the support rod.

[0014] In one embodiment, the air column lighting device further includes a second connecting member. The lamp body includes a lamp main body and a light source protection cover covering the lamp main body. The light source protection cover is connected to the end of the lamp shade away from the fixing bracket through the second connecting member.

[0015] In one embodiment, the lamp shade is a flexible member. The air column lighting device further includes a blowing device disposed on the fixing bracket. The blowing device is used to blow air into the lamp shade to make the lamp shade stand up.

[0016] In one embodiment, the air column lighting device further includes a control box assembly disposed inside the fixing bracket. The control box assembly is electrically connected to the lamp assembly and is used to control the working state of the lamp assembly.

[0017] In one embodiment, a plurality of the support assemblies are provided and are spaced apart from each other around the outer periphery of the fixing bracket.

[0018] The technical solution of the present utility model is that a support assembly is provided at one end of the fixed bracket away from the lamp assembly, and the support assembly is connected to the fixed bracket, so that the support assembly can be in the open position for supporting the lamp assembly and the storage position convenient for carrying the lamp assembly and the fixed bracket. Thus, it is convenient for this application to be in contact with the ground through the support assembly in the use state to support the lamp assembly and the fixed bracket, thereby improving the stability of this application in the use state; at the same time, by rotating the support assembly to the storage position, it is convenient for the user to carry the lamp assembly and the fixed bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a structural sectional view of an embodiment of the air column type lighting device provided by the present utility model;

[0021] Figure 2 is Figure 1 a partial enlarged view of part A in

[0022] Figure 3 It is a structural disconnection schematic diagram of an embodiment of the air column type lighting device provided by the present utility model;

[0023] Figure 4 It is a structural schematic diagram of a column, a cross beam and a first connecting member in an embodiment of the air column type lighting device provided by the present utility model;

[0024] Figure 5 It is a structural schematic diagram of a support assembly in an embodiment of the air column type lighting device provided by the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Lamp assembly; 11. Lamp cover; 12. Light source protection cover; 2. Fixed bracket; 21. Skeleton; 211. Column; 2111. Groove; 212. Cross beam; 22. Top plate; 23. Bottom plate; 24. First connecting member; 241. Clamping portion; 3. Support assembly; 31. Support foot; 311. Body; 3111. Driving portion; 3112. Threaded portion; 32. Connecting rod; 33. Fixed seat; 331. First side plate; 332. Second side plate; 333. Mounting hole; 4. Moving assembly; 5. Support rod; 6. Air supply device; 7. Control box assembly.

[0027] The realization of the object, functional features, and advantages of the present utility model will be further described in conjunction with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] The present utility model provides an air column type lighting device.

[0032] Please refer to Figure 1 , in an embodiment of the present utility model, the air column type lighting device includes a lamp assembly 1;

[0033] A fixing bracket 2, the lamp assembly 1 is arranged on the fixing bracket 2; and

[0034] A supporting assembly 3, the supporting assembly 3 is arranged at one end of the fixing bracket 2 away from the lamp assembly 1, the supporting assembly 3 is connected to the fixing bracket 2, and the supporting assembly 3 has an open position and a storage position for supporting the lamp assembly 1;

[0035] In this embodiment, the lamp assembly 1 is used to provide light rays. The lamp assembly 1 is detachably fixed to the fixed bracket 2 through a hoop, so as to facilitate the user to install the lamp assembly 1 on the fixed bracket 2. One side of the fixed bracket 2 away from the lamp assembly 1 has an installation position for installing a generator. The generator is electrically connected to the lamp assembly 1, and the generator is used to provide power for the lamp assembly 1. The air column type lighting device further includes a moving assembly 4. The moving assembly 4 includes casters and a connecting frame. The casters are connected to one side of the fixed bracket 2 away from the lamp assembly 1 through the connecting frame, so as to facilitate the movement and handling of the present application in the non-use state. By providing a support assembly 3 connected to the fixed bracket 2, the user can flexibly adjust the relative angle between the support assembly 3 and the fixed bracket 2 according to the on-site site requirements, so as to facilitate the user to place the support assembly 3 on a flatter ground, thereby improving the stability of the support assembly 3 in supporting the lamp assembly 1, effectively preventing the possible collapse of the present application, and further improving the wind resistance and use safety of the present application.

[0036] The technical solution of the present utility model adopts a support assembly 3 provided at one end of the fixed bracket 2 away from the lamp assembly 1. The support assembly 3 is connected to the fixed bracket 2 so that the support assembly 3 can be in an open position for supporting the lamp assembly 1 and a storage position convenient for the handling of the lamp assembly 1 and the fixed bracket 2, so as to facilitate the present application to contact the ground through the support assembly 3 to support the lamp assembly 1 and the fixed bracket 2 in the use state, thereby improving the stability of the present application in the use state; at the same time, by rotating the support assembly 3 to the storage position, it is convenient for the user to carry the lamp assembly 1 and the fixed bracket 2.

[0037] As Figure 1 shown, the fixed bracket 2 includes a skeleton 21, and a top plate 22 and a bottom plate 23 respectively provided on both sides of the skeleton 21 in the height direction. The lamp assembly 1 is provided on the top plate 22, and the support assembly 3 is connected to the bottom plate 23.

[0038] In this embodiment, the top plate 22 and the bottom plate 23 are respectively detachably and spacedly assembled on both sides of the skeleton 21 along its height direction through second fasteners. The second fasteners can be set as bolts, screws, etc. The lamp assembly 1 is detachably connected to the top plate 22, and the support assembly 3 is connected to the outer side wall of the bottom plate 23, so as to facilitate the assembly of the lamp assembly 1 and the support assembly 3 more conveniently. At the same time, the support assembly 3 is connected to the outer side wall of the bottom plate 23 so that the user can more conveniently drive the support assembly 3 to switch between the open position and the storage position. An installation position for installing a generator may be provided between the top plate 22 and the bottom plate 23, and the generator is provided on the bottom plate 23, so as to more conveniently electrically connect the generator to the lamp assembly 1.

[0039] As Figure 1 、 Figure 2 andFigure 4 As shown, the fixing bracket 2 further includes a plurality of first connectors 24. The framework 21 includes a plurality of columns 211 and a plurality of cross beams 212. Both the columns 211 and the cross beams 212 have a plurality of grooves 2111. The plurality of grooves 2111 are arranged at intervals along the circumferential direction of the column 211 or the cross beam 212. A clamping portion 241 is provided on the outer side wall of the first connector 24. The clamping portion 241 is clamped in the groove 2111, so that any adjacent column 211 and cross beam 212 are spliced through the first connector 24.

[0040] In this embodiment, the first connector 24 can be connected to the splicing position of a single cross beam 212 and a single column 211, thereby improving the connection stability between the column 211 and the cross beam 212, and further improving the overall structural stability of the framework 21. The first connector 24 can have a first clamping surface and a second clamping surface connected to each other. The first clamping surface and the second clamping surface can be respectively provided with a clamping portion 241. Both the column 211 and the cross beam 212 have a plurality of grooves 2111 corresponding to the clamping portion 241. The clamping portion 241 is clamped in the groove 2111, thereby further improving the connection stability between the column 211 and the cross beam 212.

[0041] As Figure 5 shown, the support assembly 3 includes a support foot 31, a connecting rod 32 and a fixing seat 33. The fixing seat 33 is arranged on the fixing bracket 2. The connecting rod 32 is rotatably hinged to the fixing seat 33. The support foot 31 is connected to the connecting rod 32.

[0042] In this embodiment, one side of the fixing base 33 may have a first installation station for assembling the fixing base 33 to the bottom plate 23. The other side of the fixing base 33 may have a fan-shaped second installation station. The connecting rod 32 is assembled to the fixing base 33 by means of hinge. The connecting rod 32 may be arranged at the second installation station so that the connecting rod 32 can swing within the second installation station, thereby realizing the adjustment of the angle of the connecting rod 32 relative to the bottom plate 23 in the horizontal direction. Among them, the adjustment range of the angle of the connecting rod 32 relative to the bottom plate 23 in the horizontal direction may be between 0° and 270°. When the support foot 31 is in the open position, the support foot 31 is used to support the lamp assembly 1 so that the lamp assembly 1 can be stably placed on the ground. When the support foot 31 is in the storage position, the support foot 31 no longer contacts the ground, thus facilitating the handling of the lamp assembly 1. The support foot 31 is connected to the connecting rod 32. The user can adjust the angle of the connecting rod 32 relative to the bottom plate 23 in the horizontal direction so that the connecting rod 32 drives the support foot 31 to move, thereby adjusting the angle of the support foot 31 relative to the bottom plate 23 in the horizontal direction. The support assembly 3 further includes a locking member, and the locking member detachably locks the connecting rod 32 and the fixing base 33. The locking member can be set as a plug pin, a bolt, etc. The locking member can be used to lock the connecting rod 32 and the fixing base 33 so that the support foot 31 and the connecting rod 32 are kept at the adjusted angle, thereby making it more convenient for the user to adjust the placement position of the support foot 31 according to the actual site requirements, thereby improving the stability of the lamp assembly 1 placed on the ground and further preventing the lamp assembly 1 from tipping due to external forces.

[0043] As Figures 2 to 5 shown, the air column type lighting device further includes a first fastener. The fixing base 33 includes a first side plate 331 and a second side plate 332 connected to each other. Both the first side plate 331 and the second side plate 332 have mounting holes 333. The first fastener passes through the mounting holes 333 and is clamped in the groove 2111 so that the first side plate 331 or the second side plate 332 is connected to the frame 21 on the side close to the bottom plate 23; and / or, the support foot 31 includes a body 311. The body 311 has a driving portion 3111 and a threaded portion 3112. The driving portion 3111 is connected to the threaded portion 3112. The threaded portion 3112 is threadedly connected to one end of the connecting rod 32. The driving portion 3111 is used to drive the threaded portion 3112 to move up and down relative to the connecting rod 32.

[0044] In this embodiment, the first fastener may include a nut and a bolt. The head of the bolt is snap-fitted into the groove 2111 of the vertical column 211 or the cross beam 212. The threaded section of the bolt passes through the mounting hole 333, and the bolt is fixed to the first side plate 331 or the second side plate 332 by the nut, thereby increasing the contact area between the fixing seat 33 and the framework 21, so that the fixing seat 33 can be more stably mounted on the framework 21.

[0045] In this embodiment, when the user opens the support assembly 3, the driving body 311 descends relative to the connecting rod 32, so that the support assembly 3 contacts the ground, making the support assembly 3 more stably support the lamp assembly 1. When the user stores the support assembly 3, the driving body 311 ascends relative to the connecting rod 32, so that the support assembly 3 leaves the ground, making it more convenient for the user to carry the lamp assembly 1. By providing the threaded portion 3112 to be threadedly connected to the connecting rod 32, the user can rotate the body 311 to make the body 311 ascend and descend relative to the connecting rod 32, thereby more efficiently and stably adjusting the height of the lamp assembly 1 relative to the ground. To make it more convenient for the user to drive the support assembly 3 to ascend and descend relative to the connecting rod 32, by providing the driving portion 3111 to be connected to the threaded portion 3112, the user can drive the threaded portion 3112 to rotate on the connecting rod 32 by rotating the driving portion 3111, so that the support assembly 3 ascends and descends relative to the connecting rod 32. To increase the contact area between the support assembly 3 and the ground, the body 311 is further provided with a support portion. By providing the support portion to be connected to the end of the threaded portion 3112 far from the driving portion 3111, the body 311 can contact the ground through the support portion, thereby increasing the stability of the support assembly 3 in supporting the lamp assembly 1.

[0046] As Figure 1 shown, the inflatable column lighting device further includes a support rod 5. The support rod 5 is provided on the fixed bracket 2. The lamp assembly 1 includes a lamp shade 11 and a lamp body provided in the lamp shade 11. The lamp body is located at the end of the lamp shade 11 away from the fixed bracket 2. One end of the lamp shade 11 is connected to the fixed bracket 2, and the other end of the lamp shade 11 is connected to the support rod 5.

[0047] In this embodiment, a hook may be provided at the end of the support rod 5 away from the fixed bracket 2. A hanging rope may be connected to the end of the lamp shade 11 away from the fixed bracket 2. By hanging the hanging rope on the hook, the lamp shade 11 can be prevented from falling off when not inflated, thereby improving the safety of this application.

[0048] In this embodiment, the fixed bracket 2 may be provided with an annular connecting portion. The lamp shade 11 is detachably fixed to the connecting portion by a hoop, so as to facilitate the user to disassemble the lamp shade 11 from the fixed bracket 2.

[0049] In this embodiment, the air column type lighting device further includes a second connecting member (not marked). The lamp body includes a lamp main body 311 and a light source protection cover 12 covering the lamp main body 311. The light source protection cover 12 is connected to one end of the lamp cover 11 away from the fixed bracket 2 through the second connecting member. The second connecting member is arranged on the outer side of the lamp cover 11, and the light source protection cover 12 is arranged inside the lamp cover 11, so that the lamp cover 11 is located between the second connecting member and the light source protection cover 12. The light source protection cover 12 is connected to the lamp cover 11 and the second connecting member by screws, thereby improving the connection stability between the light source protection cover 12 and the lamp cover 11. By arranging the light source protection cover 12 to cover the lamp main body 311, the lamp main body 311 can be protected.

[0050] As Figure 1 shown, the lamp cover 11 is a flexible member. The air column type lighting device further includes a air supply device 6. The air supply device 6 is arranged on the fixed bracket 2. The air supply device 6 is used to blow air into the lamp cover 11 to make the lamp cover 11 stand up.

[0051] In this embodiment, the air supply device 6 may include a fan and a fan protection cover covering the fan. The fan is electrically connected to the generator. The air supply device 6 is arranged on the fixed bracket 2 and is located at one end inside the lamp cover 11 away from the lamp main body 311. The lamp cover 11 can be made of a high-transparency and high-temperature-resistant fabric, so that it is more convenient for the air supply device 6 to blow air into the lamp cover 11, and further makes the lamp cover 11 stand up.

[0052] As Figure 1 and Figure 3 shown, the air column type lighting device further includes a control box assembly 7. The control box assembly 7 is arranged inside the fixed bracket 2. The control box assembly 7 is electrically connected to the lamp assembly 1. The control box assembly 7 is used to control the working state of the lamp assembly 1.

[0053] In this embodiment, the working state of the lamp assembly 1 includes the dimming requirement of the lamp and different working hours of the lamp, etc. The control box assembly 7 is electrically connected to the generator, and the control box assembly 7 is electrically connected to the lamp assembly 1, so that the control box can adjust the working state of the lamp assembly 1. The control box assembly 7 may be provided with a knob for adjusting the brightness of the lamp and the working time of the lamp, so as to facilitate the user to adjust the working state of the lamp assembly 1 by turning the knob, and further improve the convenience of the user to adjust the working state of the lamp assembly 1.

[0054] As Figure 1 and Figure 3 shown, a plurality of support assemblies 3 are provided. The plurality of support assemblies 3 are arranged at intervals around the outer periphery of the fixed bracket 2.

[0055] In this embodiment, the support component 3 can be provided in multiple numbers, and the multiple support components 3 are arranged at intervals along the circumferential direction of the fixed bracket 2. Each support component 3 is connected to the fixed bracket 2 through a fixed seat 33, thereby improving the stability of the support component 3 in supporting the lamp component 1.

[0056] In this embodiment, the support component 3 can be provided in four numbers. The outer shape of the fixed bracket 2 can be in the shape of a cuboid, and the four support components 3 can be respectively arranged at the four corners of the fixed bracket 2.

[0057] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A columnar gas lighting device, characterized in that, The air column type lighting device includes: A lamp assembly; A fixing bracket, on which the lamp assembly is disposed; and A support assembly, which is disposed at one end of the fixing bracket away from the lamp assembly, the support assembly is connected to the fixing bracket, and the support assembly has an open position and a storage position for supporting the lamp assembly.

2. The air column type lighting device according to claim 1, wherein, The fixing bracket includes a framework, and a top plate and a bottom plate respectively disposed on both sides in the height direction of the framework. The lamp assembly is disposed on the top plate, and the support assembly is connected to the bottom plate.

3. The air column type lighting device according to claim 2, wherein, The fixing bracket further includes a plurality of first connecting members. The framework includes a plurality of columns and a plurality of cross beams. Both the columns and the cross beams have a plurality of grooves, and the plurality of grooves are arranged at intervals along the circumferences of the columns or the cross beams. The outer side wall of the first connecting member is provided with a clamping portion, and the clamping portion is clamped in the groove, so that any adjacent column and cross beam are spliced through the first connecting member.

4. The air column type lighting device according to claim 3, characterized in that, The support assembly includes a support foot, a connecting rod and a fixing seat. The fixing seat is disposed on the fixing bracket, the connecting rod is rotatably hinged to the fixing seat, and the support foot is connected to the connecting rod.

5. The air column type lighting device according to claim 4, characterized in that The air column type lighting device further includes a first fastener. The fixing seat includes a first side plate and a second side plate connected to each other. Both the first side plate and the second side plate have mounting holes. The first fastener passes through the mounting holes and is clamped in the groove, so that the first side plate or the second side plate is connected to the framework on the side close to the bottom plate; And / or, the support foot includes a body, the body has a driving portion and a threaded portion, the driving portion is connected to the threaded portion, and the threaded portion is threadedly connected to one end of the connecting rod. The driving portion is used to drive the threaded portion to move up and down relative to the connecting rod.

6. The air column type lighting device according to claim 1, wherein, The air column type lighting device further includes a support rod. The support rod is disposed on the fixing bracket. The lamp assembly includes a lamp cover and a lamp body disposed in the lamp cover. The lamp body is located at one end of the lamp cover away from the fixing bracket. One end of the lamp cover is connected to the fixing bracket, and the other end of the lamp cover is connected to the support rod.

7. The air column type lighting device according to claim 6, wherein, The air column type lighting device further includes a second connecting member. The lamp body includes a lamp main body and a light source protection cover covering the lamp main body. The light source protection cover is connected to one end of the lamp cover away from the fixing bracket through the second connecting member.

8. The air column type lighting device according to claim 6, wherein The lamp cover is a flexible member. The air column type lighting device further includes a blowing device. The blowing device is disposed on the fixing bracket, and the blowing device is used to blow air into the lamp cover to make the lamp cover stand up.

9. The air column type lighting device according to claim 1, characterized in that, The air column type lighting device further includes a control box assembly. The control box assembly is disposed in the fixing bracket. The control box assembly is electrically connected to the lamp assembly, and the control box assembly is used to control the working state of the lamp assembly.

10. The air column type lighting device according to any one of claims 1 to 9, characterized in that, A plurality of the support assemblies are provided, and the plurality of support assemblies are arranged at intervals around the outer periphery of the fixing bracket.

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