Lamp with adjustable light-emitting angle

Abstract

The utility model discloses a light-emitting angle adjustable lamp which comprises a shell, a lens, an adjusting mechanism and a lamp panel, the lens is arranged on the inner front side of the shell in a sliding mode, and the lamp panel is fixedly arranged in the shell and located on the rear side of the lens. The adjusting mechanism is used for driving the lens to vertically slide up and down relative to the shell and comprises an adjusting part and a transmission part, and the transmission part is located in the shell and connected with the lens; a connecting hole is formed in the shell, the adjusting piece is located on the rear outer side of the shell, the adjusting piece is connected with the transmission part through the connecting hole, and the adjusting piece is rotationally connected with the connecting hole; according to the lamp with the adjustable light-emitting angle, when a user needs to adjust the light-emitting angle, the lens can be driven to vertically slide up and down relative to the shell through the adjusting mechanism, so that the relative position between the lens and the lamp panel is changed, and the purpose of adjusting the light-emitting angle is achieved; the light-emitting angle can be adjusted without a tool or dismounting the lens, and the light-emitting angle adjusting device has the advantages of being easy and convenient to operate, high in safety and low in difficulty.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting device technical field, especially relate to a light emitting angle adjustable lamp. BACKGROUND

[0002] With the continuous evolution of market demand and the continuous expansion of product functions, modern lighting device design tends to realize multi-angle light emission to meet diversified scene and application requirements;However, in the process of adjusting the light emitting angle of the traditional lighting device, there are often problems such as complicated operation, low efficiency and significant safety hazards.

[0003] Specifically, for the traditional lighting device, it is usually necessary to adjust the light emitting angle by means of screwdriver and other tools, and to move the lens by manually rotating the shaft rod;Such operation not only consumes time and effort, but also when loosening the screws fixing the lens and pushing away the parts pressing the lens to replace different types of lenses, the hands of the operator are easy to contact the live lamp plate, which increases the risk of electric shock and seriously threatens the health and safety of the operator;Further, in the lens replacement process, operation errors can easily cause lens damage, thereby increasing the maintenance and maintenance cost of the lighting device;In addition, if the lens is not installed properly, it will not only affect the actual light emitting effect of the lighting device, but also may cause the service life of the lighting device to be shortened.

[0004] It can be seen that the prior art needs to be improved and improved. UTILITY MODEL CONTENT

[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a light emitting angle adjustable lamp, which has the advantages of simple operation, high safety and low difficulty in adjusting the light emitting angle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A light emitting angle adjustable lamp, comprising a shell, a lens, an adjusting mechanism and a lamp plate, the lens is slidably arranged on the inner front side of the shell, and the lamp plate is fixedly arranged in the shell and located on the rear side of the lens;The adjusting mechanism is used for driving the lens to slide vertically up and down relative to the shell, and the adjusting mechanism comprises an adjusting part and a transmission part, the transmission part is located in the shell and connected with the lens;The connecting hole is formed on the shell, the adjusting part is located on the rear outer side of the shell, the adjusting part is connected with the transmission part through the connecting hole, and the adjusting part is rotationally connected with the connecting hole.

[0008] The light-emitting angle-adjustable lamp, wherein the adjusting member comprises a knob and a connecting rod, the transmission part comprises a first transmission wheel and a second transmission wheel; the bottom of the rear sidewall of the lens is provided with a first limiting plate and a second limiting plate; the knob is located at the rear outer side of the shell, the connecting rod is rotationally connected with the connecting hole, one end of the connecting rod is fixedly connected with the knob, the other end of the connecting rod is fixedly connected with one end of the first transmission wheel, the other end of the first transmission wheel is connected with the second transmission wheel through an extension rod, and the first transmission wheel and the second transmission wheel are eccentrically arranged; the top of the second transmission wheel is in contact with the bottom surface of the first limiting plate, and the bottom of the second transmission wheel is in contact with the top surface of the second limiting plate.

[0009] The light-emitting angle-adjustable lamp, wherein the outer side of the knob is provided with four first indicating blocks, each first indicating block corresponds to an adjustment angle; the inner side of the knob is provided with four connecting grooves corresponding to the four first indicating blocks, the rear side of the shell is provided with a locking member, and the locking member is connected with any connecting groove.

[0010] The light-emitting angle-adjustable lamp, wherein the locking member is a ball member, and the ball member is connected with any connecting groove.

[0011] The light-emitting angle-adjustable lamp, wherein a plurality of limiting grooves are formed in the lens, a plurality of limiting members are arranged in the shell, the plurality of limiting members are connected with the plurality of limiting grooves one by one in a one-to-one correspondence, and the limiting grooves can vertically slide up and down relative to the limiting members.

[0012] The light-emitting angle-adjustable lamp further comprises a glass cover plate and four fixing members, the glass cover plate is arranged on the front side of the shell, and the lens is located on the inner side of the glass cover plate; the glass cover plate is fixedly connected with the shell through the four fixing members, and the four fixing members are respectively located at the four corner positions of the glass cover plate.

[0013] The light-emitting angle-adjustable lamp, wherein the shell is further provided with a driving device; the front side of the shell is provided with a power cover, the power cover is located below the glass cover plate; the top of the power cover is hingedly connected with the shell, the bottom of the power cover is detachably connected with the shell, and the driving device is located on the inner side of the power cover.

[0014] The light-emitting angle-adjustable lamp, wherein a plurality of heat dissipation holes are formed in the shell, the heat dissipation holes are located between the glass cover plate and the power cover; the rear side of the shell is provided with a plurality of heat dissipation strips, and heat dissipation grooves are formed between adjacent heat dissipation strips.

[0015] The light-emitting angle-adjustable lamp further comprises a light control device located at the rear outer side of the shell; the rear side of the shell is provided with a reinforcing seat, and a through hole is formed in the reinforcing seat; and the light control device is electrically connected with the driving device through the through hole.

[0016] The light-emitting angle-adjustable lamp further comprises a first lamp rod joint and a second lamp rod joint; the first lamp rod joint is fixedly arranged at the bottom of the shell; the first lamp rod joint is detachably connected with the second lamp rod joint; a plurality of second indicating blocks are arranged on the first lamp rod joint; an indicating arrow is arranged on the second lamp rod joint; and the second indicating blocks and the indicating arrow are matched to indicate the included angle between the first lamp rod joint and the second lamp rod joint.

[0017] Beneficial effects:

[0018] The utility model provides a kind of light-emitting angle-adjustable lamps, when user needs to adjust light-emitting angle, it can drive lens to slide vertically up and down relative shell by adjusting mechanism, make the relative position between lens and lamp plate change, reach the purpose of adjusting light-emitting angle;That is, without the aid of tool, without disassembling lens can realize the adjustment of light-emitting angle, avoid the occurrence of electric shock accident, with the advantages of simple operation, high safety, low difficulty, improve the user's use experience;Further, since lamp has the characteristics of adjustable multiple light-emitting angles, it can adapt to a variety of different use occasions and meet the diversified use demand, significantly improve the use flexibility of lamp. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model provides the structure schematic diagram of light-emitting angle-adjustable lamp;

[0020] Figure 2 The utility model provides the structure schematic diagram of light-emitting angle-adjustable lamp after removing knob;

[0021] Figure 3 The utility model provides the connection structure schematic diagram of adjusting mechanism, lamp plate and lens;

[0022] Figure 4 The utility model provides the structure schematic diagram of lens and lamp plate;

[0023] Figure 5 The utility model provides the structure schematic diagram of adjusting mechanism.

[0024] Main element symbol explanation: 1 - shell, 11 - limiting piece, 12 - heat dissipation hole, 13 - heat dissipation strip, 14 - heat dissipation groove, 15 - reinforcing seat, 2 - lens, 21 - first limiting plate, 22 - second limiting plate, 23 - limiting groove, 31 - knob, 311 - first indicating block, 312 - connecting groove, 32 - connecting rod, 33 - first transmission wheel, 34 - second transmission wheel, 4 - lamp plate, 5 - marble piece, 61 - glass cover plate, 62 - fixing piece, 7 - power cover, 8 - light control device, 91 - first lamp rod joint, 92 - second lamp rod joint. DETAILED DESCRIPTION

[0025] The utility model provides a light emitting angle adjustable lamp, in order to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following refers to the drawing and raises example to make further detailed description to the utility model.

[0026] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "top", "bottom", "upper", "lower", "front", "rear" and the like is the orientation or position relation based on the actual use scene, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model; in addition, the terms "mounting", "connecting" and the like should be understood in a broad sense, and for ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Please refer to Figures 1 to 5 The utility model provides a light emitting angle adjustable lamp, including shell 1, lens 2, adjusting mechanism and lamp plate 4, the lens 2 can be slidably arranged in the inner front side of shell 1, the lamp plate 4 is fixed in the shell 1, and is located the rear side of lens 2;The adjusting mechanism is used to drive the lens 2 relative to the shell 1 vertically slides up and down, the adjusting mechanism includes adjusting piece and transmission part, the transmission part is located in the shell 1, and is connected with the lens 2;The connecting hole is set up on the shell 1, the adjusting piece is located in the rear outer side of the shell 1, the adjusting piece is connected with the transmission part through the connecting hole, and the adjusting piece is rotationally connected with the connecting hole.

[0028] The application discloses a light-emitting angle adjustable lamp, when a user needs to adjust the light-emitting angle, the lens 2 can be driven to vertically slide up and down relative to the shell 1 through an adjusting mechanism, so that the relative position between the lens 2 and the lamp panel 4 is changed, the purpose of adjusting the light-emitting angle is achieved, the adjustment of the light-emitting angle can be realized without the aid of tools and the dismounting of the lens 2, the occurrence of electric shock accidents is avoided, the lamp has the advantages of simple operation, high safety and low difficulty, and the use experience of the user is improved; further, since the lamp has the characteristics of adjustable multiple light-emitting angles, the lamp can adapt to various different use occasions and meet diversified use requirements, and the use flexibility of the lamp is significantly improved.

[0029] Further, please refer to Figure 3 and Figure 5 , the adjusting piece comprises a knob 31 and a connecting rod 32, the transmission part comprises a first transmission wheel 33 and a second transmission wheel 34; the bottom of the rear side wall of the lens 2 is provided with a first limiting plate 21 and a second limiting plate 22; the knob 31 is located at the rear outer side of the shell 1, the connecting rod 32 is rotationally connected with the connecting hole, one end of the connecting rod 32 is fixedly connected with the knob 31, the other end of the connecting rod 32 is fixedly connected with one end of the first transmission wheel 33, the other end of the first transmission wheel 33 is connected with the second transmission wheel 34 through an extending rod, and the first transmission wheel 33 and the second transmission wheel 34 are eccentrically arranged; the top of the second transmission wheel 34 is in contact with the bottom surface of the first limiting plate 21, and the bottom of the second transmission wheel 34 is in contact with the top surface of the second limiting plate 22.

[0030] In the embodiment, the first limiting plate 21 and the second limiting plate 22 are integrally formed with the lens 2 respectively; the connecting rod 32 is rotationally connected with the connecting hole, so that the flexibility and stability of rotation are ensured; the first transmission wheel 33 is bolted with the connecting rod 32 and reaches a locking state; the second transmission wheel 34 is bolted with the first transmission wheel 33, but does not reach a locking state.

[0031] In the embodiment, when the user rotates the adjusting member located at the rear outer side of the shell 1, the knob 31 in the adjusting member rotates, and with the rotation of the knob 31, the connecting rod 32 drives the first transmission wheel 33 to start rotating slowly and smoothly; since the first transmission wheel 33 and the second transmission wheel 34 are eccentrically arranged, when the first transmission wheel 33 rotates, the second transmission wheel 34 is pushed or pulled by the extension rod, so that the second transmission wheel 34 generates displacement in the vertical direction; since the top of the second transmission wheel 34 is in contact with the bottom surface of the first limiting plate 21, and the bottom of the second transmission wheel 34 is in contact with the top surface of the second limiting plate 22, through this contact mode, sufficient friction force is generated to drive the lens 2, so that the lens 2 can vertically slide up and down in the shell 1; the sliding process is smooth and accurate, which ensures that the relative position between the lens 2 and the lamp plate 4 changes slightly and effectively, so that the light emitting angle of the lamp is accurately adjusted.

[0032] In the embodiment, the outer surface of the knob 31 is surrounded by a plurality of friction grooves, which increase the friction between the user's hand and the knob 31, so that the user can more easily hold the knob 31 during use, effectively preventing the knob 31 from slipping or sliding during rotation, and improving the stability and accuracy of operation.

[0033] Further, please refer to Figure 2 , Figure 3 and Figure 5 , the outer side of the knob 31 is provided with four first indicating blocks 311, each of which corresponds to an adjustment angle; the inner side of the knob 31 is provided with four connecting grooves 312 corresponding to the four first indicating blocks 311, and the rear side of the shell 1 is provided with a locking member which is connected with any of the connecting grooves 312.

[0034] In the embodiment, the first indicating block 311 is integrally formed with the knob 31; the four indicating blocks correspond to four adjustment angles, that is, four light emitting angle adjustment effects, which facilitates the user to confirm the adjusted light emitting angle during each adjustment.

[0035] Further, the locking member is a marble member 5 which is connected with any of the connecting grooves 312.

[0036] In the embodiment, the elastic ball 5 is a prior art; by arranging the elastic ball 5 on the rear side of the shell 1, the elastic ball 5 is connected with any connecting groove 312 on the inner side of the knob 31, thereby realizing a firm and easy-to-operate connection mode, improving the stability and reliability of the overall structure, ensuring the adjustment of the light-emitting angle, and improving the accuracy of the light-emitting angle adjustment; further, when the elastic ball 5 is connected with any connecting groove 312, a sound is emitted to remind the user to install in place, so that the user can know the completion degree of the light-emitting angle adjustment process in time, and the user experience is improved.

[0037] Further, referring to Figure 3 and Figure 4 , a plurality of limiting grooves 23 are arranged on the lens 2, and a plurality of limiting pieces 11 are arranged in the shell 1, the plurality of limiting pieces 11 are connected with the plurality of limiting grooves 23 one by one, and the limiting grooves 23 can slide vertically up and down relative to the limiting pieces 11.

[0038] In the embodiment, the limiting piece 11 includes a threaded stud and a nut, and the threaded stud is fixedly connected with the nut located on the front side of the lens 2 through the lamp plate 4; by arranging the limiting groove 23 on the lens 2 and connecting the limiting piece 11, the movement of the lens 2 in the vertical direction during use can be effectively ensured, and the deviation of the lens 2 during work can be avoided, thereby avoiding the deviation of the lens 2 in the optical system, improving the stability and reliability of the light-emitting angle adjustment process, and ensuring that the light-emitting effect after the light-emitting angle adjustment is consistent with the ideal light-emitting effect.

[0039] Further, referring to Figure 1 , the light-emitting angle adjustable lamp further includes a glass cover plate 61 and four fixing pieces 62, the glass cover plate 61 is arranged on the front side of the shell 1, and the lens 2 is located on the inner side of the glass cover plate 61; the glass cover plate 61 is fixedly connected with the shell 1 through the four fixing pieces 62, and the four fixing pieces 62 are respectively located on the four corner positions of the glass cover plate 61.

[0040] In this embodiment, the four fixing members 62 are bolted with the shell 1 respectively to realize the fixed connection between the glass cover plate 61 and the shell 1; by arranging the glass cover plate 61, the lens 2 and other components inside the lamp can be effectively protected, and the influence of external factors such as dust and water vapor on the lamp is prevented, thereby prolonging the service life of the lamp; secondly, the design of the glass cover plate 61 also improves the appearance and light transmittance of the lamp, so that the light emitted by the lamp is softer and more uniform, providing better user experience; in addition, the arrangement of the four fixing members 62 makes the connection between the glass cover plate 61 and the shell 1 more firm, preventing the lamp from loosening or falling off due to vibration or external force during use, thereby ensuring the stability and safety of the lamp.

[0041] Further, please refer to Figure 1 , the shell 1 is also provided with a driving device; the front side of the shell 1 is provided with a power cover 7, which is located below the glass cover plate 61; the top of the power cover 7 is hinged with the shell 1, and the bottom of the power cover 7 is detachably connected with the shell 1, and the driving device is located on the inner side of the power cover 7.

[0042] In this embodiment, the bottom of the power cover 7 is bolted with the shell 1 to realize the detachable connection between the bottom of the power cover 7 and the shell 1, that is, the power cover 7 adopts a form that can be opened and closed, which facilitates the user to open the power cover 7 for maintenance of the driving device, greatly reducing the maintenance difficulty.

[0043] Further, please refer to Figure 1 and Figure 2 , a plurality of heat dissipation holes 12 are formed on the shell 1, and the heat dissipation holes 12 are located between the glass cover plate 61 and the power cover 7; a plurality of heat dissipation strips 13 are arranged on the rear side of the shell 1, and heat dissipation grooves 14 are formed between adjacent heat dissipation strips 13.

[0044] In this embodiment, the heat dissipation strips 13 are integrally formed with the shell 1; by arranging a plurality of heat dissipation holes 12 on the shell 1, the air circulation can be effectively increased, and the heat dissipation is accelerated; and the heat dissipation holes 12 are located between the glass cover plate 61 and the power cover 7, which ensures the maximization of the heat dissipation effect; in addition, a plurality of heat dissipation strips 13 are arranged on the rear side of the shell 1, and heat dissipation grooves 14 are formed between adjacent heat dissipation strips 13, the design of the heat dissipation strips 13 and the heat dissipation grooves 14 further enhances the heat dissipation area, so that the heat can be transmitted to the external environment through the shell 1 more quickly, thereby effectively reducing the working temperature of the lamp and prolonging the service life of the lamp.

[0045] Further, please refer to Figure 2The light-emitting angle-adjustable lamp further comprises a light control device 8 located at the rear outer side of the shell 1; the rear side of the shell 1 is provided with a reinforcing seat 15, a through hole is formed in the reinforcing seat 15, and the light control device 8 is electrically connected with the driving device through the through hole.

[0046] In the embodiment, the light control device 8 is a device capable of automatically adjusting the working or lighting state according to the intensity of ambient light; when the intensity of ambient light is lower than a certain threshold, the light control device 8 automatically turns on the lamp; when the light is sufficient, the lamp is turned off or the brightness of the lamp is reduced; by arranging the light control device 8, sufficient lighting can be ensured when the light is insufficient, and discomfort caused by excessive light can be avoided, thereby improving the comfort of the user, avoiding unnecessary energy waste, and helping to save energy and reduce emissions; in addition, by arranging the light control device 8, the frequency of turning on and off the lamp is reduced, which helps to prolong the service life of the lamp.

[0047] Further, referring to Figure 1 and Figure 2 , the light-emitting angle-adjustable lamp further comprises a first lamp rod joint 91 and a second lamp rod joint 92, the first lamp rod joint 91 is fixedly arranged at the bottom of the shell 1, and the first lamp rod joint 91 is detachably connected with the second lamp rod joint 92; a plurality of second indicating blocks are arranged on the first lamp rod joint 91, an indicating arrow is arranged on the second lamp rod joint 92, and the second indicating blocks and the indicating arrow cooperate to indicate the included angle between the first lamp rod joint 91 and the second lamp rod joint 92.

[0048] In the embodiment, referring to Figure 1 and Figure 2The top of the first lamp pole joint 91 is bolted with the bottom of the shell 1, and the bottom of the first lamp pole joint 91 is connected with the top of the second lamp pole joint 92 through a stud and a nut; when it is needed to adjust the included angle between the first lamp pole joint 91 and the second lamp pole joint 92, the connecting relationship between the nut and the stud is released, the second lamp pole joint 92 is rotated, and when the required included angle is reached, the nut and the stud are reconnected to fix the first lamp pole joint 91 and the second lamp pole joint 92; through the setting of the detachably connected first lamp pole joint 91 and the second lamp pole joint 92, the flexibility of the lamp is greatly enhanced, the user can quickly adjust the lighting angle according to the actual use demand, so as to meet the lighting demand in different occasions; further, a plurality of second indicating blocks are designed on the first lamp pole joint 91, and an intuitive indicating arrow is arranged on the second lamp pole joint 92, the indicating arrow and the second indicating blocks cooperate with each other to form a simple and easy-to-understand indicating system, the user only needs to observe the relative position of the indicating arrow and the indicating blocks, so that the size of the included angle between the first lamp pole joint 91 and the second lamp pole joint 92 can be easily judged, the operation convenience is greatly improved, and the lighting angle adjustment process of the lamp is more intuitive and accurate.

[0049] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A light fixture with adjustable light emission angle, characterized in that, The application relates to a lamp, which comprises a shell, a lens, an adjusting mechanism and a lamp plate, the lens is slidably arranged on the inner front side of the shell, the lamp plate is fixedly arranged in the shell and located at the back side of the lens, the adjusting mechanism is used for driving the lens to vertically slide up and down relative to the shell, the adjusting mechanism comprises an adjusting part and a transmission part, the transmission part is located in the shell and connected with the lens, a connecting hole is arranged on the shell, the adjusting part is located on the back outer side of the shell, the adjusting part is connected with the transmission part through the connecting hole, and the adjusting part is rotationally connected with the connecting hole.

2. The light emitting angle adjustable lamp according to claim 1, wherein, The adjusting part comprises a knob and a connecting rod, the transmission part comprises a first transmission wheel and a second transmission wheel, the bottom of the back wall of the lens is provided with a first limiting plate and a second limiting plate, the knob is located on the back outer side of the shell, the connecting rod is rotationally connected with the connecting hole, one end of the connecting rod is fixedly connected with the knob, the other end of the connecting rod is fixedly connected with one end of the first transmission wheel, the other end of the first transmission wheel is connected with the second transmission wheel through an extension rod, and the first transmission wheel and the second transmission wheel are eccentrically arranged; the top of the second transmission wheel is in contact with the bottom surface of the first limiting plate, and the bottom of the second transmission wheel is in contact with the top surface of the second limiting plate.

3. The light emitting angle adjustable lamp according to claim 2, wherein, The outer side of the knob is provided with four first indicating blocks, each first indicating block corresponds to an adjusting angle, the inner side of the knob is provided with four connecting grooves corresponding to the four first indicating blocks, the back side of the shell is provided with a locking part, and the locking part is connected with any connecting groove.

4. The light emitting angle adjustable lamp according to claim 3, wherein, The locking part is a ball part, and the ball part is connected with any connecting groove.

5. The light emitting angle adjustable lamp according to claim 2, wherein, A plurality of limiting grooves are arranged on the lens, a plurality of limiting parts are arranged in the shell, the plurality of limiting parts are connected with the plurality of limiting grooves one by one, and the limiting grooves can vertically slide up and down relative to the limiting parts.

6. The light emitting angle adjustable lamp according to claim 1, wherein, The application further comprises a glass cover plate and four fixing parts, the glass cover plate is arranged on the front side of the shell, and the lens is located on the inner side of the glass cover plate; the glass cover plate is fixedly connected with the shell through the four fixing parts, and the four fixing parts are respectively located on the four corner positions of the glass cover plate.

7. The light emitting angle adjustable lamp according to claim 6, wherein, The shell is further provided with a driving device; the front side of the shell is provided with a power cover, the power cover is located below the glass cover plate; the top of the power cover is hingedly connected with the shell, the bottom of the power cover is detachably connected with the shell, and the driving device is located on the inner side of the power cover.

8. The light emitting angle adjustable lamp according to claim 7, characterized in that, A plurality of heat dissipation holes are arranged on the shell, the heat dissipation holes are located between the glass cover plate and the power cover; a plurality of heat dissipation strips are arranged on the back side of the shell, and heat dissipation grooves are formed between adjacent heat dissipation strips.

9. The light emitting angle adjustable lamp according to claim 7, wherein, The application further comprises a light control device, the light control device is located on the back outer side of the shell; the back side of the shell is provided with a reinforcing seat, a through hole is arranged on the reinforcing seat, and the light control device is electrically connected with the driving device through the through hole.

10. The light emitting angle adjustable lamp according to claim 1, wherein, Further comprise a first lamp pole joint and a second lamp pole joint, the first lamp pole joint is fixed on the bottom of the shell, the first lamp pole joint is detachable with the second lamp pole joint;The first lamp pole joint is provided with a plurality of second indicating blocks, the second lamp pole joint is provided with indicating arrow, the second indicating block is matched with the indicating arrow, for indicating the included angle between the first lamp pole joint and the second lamp pole joint.

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