Lifting telescopic electric control hanging lamp

Abstract

The utility model provides a kind of lift telescopic electric control ceiling lamp, including top mounting body, first lamp body, and two second lamp bodies separately arranged in the left and right sides of first lamp body;The first lamp body is suspendedly connected with top mounting body;The top mounting body is raised or lowered first lamp body by lifting device, and can stop at any height when rising or falling;Two second lamp bodies can move horizontally relative to first lamp body, automatically synchronously move outward to stretch out or synchronously move inward to retract, and can stop at any position when stretching out or retracting.In the utility model, when the length of illumination needs to be lengthened, control two second lamp bodies to horizontally stretch out outward on the left and right sides of first lamp body respectively, and second lamp bodies can also be controlled to horizontally retract inward on the left and right sides of first lamp body respectively, and can stop at any position, the distance of lengthened illumination length is selected according to intention, in addition, the height of first lamp body can be selected according to intention by adjusting the lifting of first lamp body to adjust the illumination range and irradiation area, which is flexible and convenient to use, simple and versatile.

Description

Technical Field

[0001] This utility model belongs to the field of chandelier technology, and in particular refers to a lifting and telescopic electrically controlled chandelier. Background Technology

[0002] Market research and patent searches have revealed that existing strip lights are generally of fixed length. Since the required illumination length varies in different usage scenarios, existing strip lights cannot adjust the illuminated area. It is necessary to purchase strip lights of different lengths or to purchase multiple light bodies in combination for use, resulting in high usage and procurement costs, fixed usage space and style, and insufficient versatility.

[0003] To address the above issues, we have provided a new technical solution. Utility Model Content This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a lifting and telescopic electrically controlled chandelier, and the technical solution adopted is as follows: A lifting and telescopic electrically controlled chandelier, including: The top mounting body, the first lamp body, and two second lamp bodies respectively located on both sides of the first lamp body; The first lamp body is suspended from the top mounting body; the top mounting body raises or lowers the first lamp body via a lifting device to control the lifting height of the first lamp body. The two second lamp bodies can move horizontally relative to the first lamp body, and automatically extend outward or retract inward synchronously under electronic control commands.

[0004] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier has suspension lines hanging from both ends of the top mounting body, and the bottom ends of the suspension lines are connected and fixed to the first lamp body; the lifting device synchronously winds up the two suspension lines to synchronously raise or lower the first lamp body.

[0005] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier includes a pair of rope winders disposed in the top mounting body. The two suspension lines are respectively connected to the pair of rope winders and can be simultaneously unwound and lowered or wound up and raised under the action of the rope winders.

[0006] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier is provided. The lifting device includes a lifting drive motor and a main drive gear connected to the output shaft of the lifting drive motor and controlled by the lifting drive motor. The rope winder includes a gear-type winder and a rotating toothed disc disposed above the gear-type winder. The rotating gears of the two rope winders mesh with each other, and the main drive gear meshes with one of the rotating toothed discs.

[0007] According to an embodiment of the present invention, a lifting and telescopic electrically controlled chandelier is provided. The gear-type winding device is provided with a central shaft. A limiting gear is linked on the central shaft of one of the gear-type winding devices. A winding limiting lever and an unwinding limiting lever are provided on the limiting gear. A winding contact limiter and an unwinding contact limiter are provided on one side of the limiting gear. During the winding stroke, the limiting gear can drive the winding limiting lever and the winding contact limiter to be linked. During the unwinding stroke, the limiting gear can drive the unwinding limiting lever and the unwinding contact limiter to be linked.

[0008] According to an embodiment of the present utility model, a lifting and telescopic electric control chandelier is provided at both ends of the top mounting body, and a rolling wheel frame and a rolling wheel are respectively provided at both ends. A weightlessness switch is provided on the lower side of the rolling wheel. The suspension line is led out from the rope winder, passes through the rolling wheel and the weightlessness switch, and is suspended and fixedly connected to the first lamp body.

[0009] According to an embodiment of the present invention, a lifting and telescopic electrically controlled chandelier includes a second lamp body and a first lamp body that move through a line meshing transmission. A telescopic drive motor is provided at the end of the first lamp body, and meshing gears are provided on the front and rear outer sides of the first lamp body. The meshing gears are connected to and controlled by the telescopic drive motor to rotate forward or backward. A clamping space is provided in the middle of the second lamp body along its length, and the first lamp body and a pair of meshing gears are clamped in the clamping space. Meshing racks are provided on the front and rear sides of the first lamp body along its length, and the two ends of the meshing racks are fixed to the left and right ends of the first lamp body. The meshing racks mesh with the meshing gears and can drive the second lamp body to move horizontally relative to the first lamp body under the drive of the meshing gears.

[0010] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier is provided in the second lamp body, at least a pair of auxiliary wheels are provided, the pair of auxiliary wheels are respectively provided on the front and rear sides of the second lamp body, and the middle part is connected to the first lamp body by a connecting shaft; the second lamp body is provided with a shell on both its front and rear sides, and a travel track is provided in the shell, and the auxiliary wheels are limited to the travel track.

[0011] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier includes a first lamp body comprising a housing, a control center disposed within the housing, a first upper LED light panel, a first lower LED light panel, and an upper light-transmitting lamp cover and a lower light-transmitting lamp cover; the control center is connected to the first lamp body to control the first upper LED light panel, the first lower LED light panel, and to control the lifting and lowering of the first lamp body.

[0012] According to an embodiment of the present utility model, a lifting and telescopic electrically controlled chandelier is provided with a second lower LED light panel on the front and rear sides of the second lamp body; the control center controls the second lower LED light panel in conjunction with the second lamp body, and controls the telescopic movement of the second lamp body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, when it is necessary to extend the illumination length, the two second lamp bodies can be controlled to extend horizontally outward from the left and right sides of the first lamp body, respectively. When it is not necessary to extend the illumination length, the second lamp bodies can be controlled to retract horizontally inward from the left and right sides of the first lamp body, respectively. The extension and retraction can be stopped at any position. The distance to extend the illumination length can be selected according to the intention. In addition, the illumination range and illumination area can be adjusted by adjusting the height of the first lamp body. The height of the first lamp body can be selected according to the intention. It is flexible, convenient, simple to use, and highly versatile. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of some embodiments of the present utility model. Figure 1 ; Figure 2 This is a perspective view of some embodiments of the present utility model. Figure 2 ; Figure 3 This is a perspective view of the connection and installation of the top mounting body and the suspension line in some embodiments of this utility model. Figure 1 ; Figure 4 This is a perspective view of the connection and installation of the top mounting body and the suspension line in some embodiments of this utility model. Figure 2 ; Figure 5 This is a three-dimensional schematic diagram of the connection and installation of the first lamp body and the second lamp body in some embodiments of the present invention. Figure 2 ; Figure 6 for Figure 5 Enlarged view of section A; Figure 7 This is a three-dimensional schematic diagram of the connection and installation of the first lamp body and the second lamp body in some embodiments of the present invention. Figure 2 ; Figure 8 This is a three-dimensional schematic diagram of the connection and installation of the first lamp body and the second lamp body in some embodiments of the present invention. Figure 3 .

[0015] Explanation of key component symbols: 10. Top mounting body; 20. First lamp body; 21. First upper LED light panel; 22. First lower LED light panel; 30. Second lamp body; 31. Housing; 32. Traveling track; 33. Second lower LED light panel; 34. Wire substrate; 40. Suspension wire; 50. Lifting drive motor; 60. Main drive gear; 70. Gear-type take-up reel; 80. Rotating gear; 90. Limit gear; 91. Take-up limit lever; 92. Untake-up limit lever; 93. Take-up contact limiter; 94. Untake-up contact limiter; 100. Rolling wheel; 101. Rolling wheel frame; 110. Weightlessness switch; 120. Telescopic drive motor; 130. Meshing gear; 140. Meshing rack; 150. Auxiliary wheel. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0017] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0018] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0019] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0020] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0021] This utility model provides a lifting and telescopic electrically controlled chandelier, such as... Figure 1 , 2 As shown, including The top mounting body 10, the first lamp body 20, and two second lamp bodies 30 respectively located on the left and right sides of the first lamp body 20; The first lamp body 20 is suspended and connected to the top mounting body 10; the top mounting body 10 raises or lowers the first lamp body 20 through a lifting device to control the lifting height of the first lamp body 20, and can stop at any height when raised or lowered; The two second lamp bodies 30 can move horizontally relative to the first lamp body 20, and can automatically and synchronously extend outward or retract inward under electronic control commands, and can stop at any position when extending or retracting.

[0022] During installation, the top mounting body 10 is installed on the ceiling, with the first lamp body 20 and the second lamp body 30 hanging down. The illumination length of the first lamp body 20 is fixed. When it is necessary to extend the illumination length, the two second lamp bodies 30 are manipulated to extend horizontally outward on the left and right sides of the first lamp body 20, respectively. When it is not necessary to extend the illumination length, the two second lamp bodies 30 can be manipulated to retract horizontally inward on the left and right sides of the first lamp body 20, respectively. The extension and retraction can also be stopped at any position. The distance of extending the illumination length can be selected according to the intention. In addition, the lighting range and illumination area can be adjusted by adjusting the height of the first lamp body 20. The height of the first lamp body 20 can be selected according to the intention. It is flexible, convenient, simple to use, and highly versatile.

[0023] Furthermore, in some embodiments of this utility model application, such as Figure 3 , 4 As shown, suspension lines 40 are suspended from both ends of the top mounting body 10, and the bottom ends of the suspension lines 40 are connected and fixed to the first lamp body 20. The lifting device synchronously winds up the two suspension lines 40 to raise or lower the first lamp body 20 synchronously. Specifically, the lifting device includes a pair of rope winders disposed within the top mounting body 10. The two suspension lines 40 are respectively connected to the pair of rope winders, and can be synchronously unwound and lowered or wound up and raised under the action of the rope winders to control the raising and lowering of the first lamp body 20 and the height of the raising and lowering.

[0024] Furthermore, in some embodiments of this utility model application, such as Figure 3 , 4 As shown, the lifting device includes a lifting drive motor 50 and a main drive gear 60 connected to the output shaft of the lifting drive motor 50 and controlled by the lifting drive motor 50; the rope winder includes a gear-type winder 70 and a rotating toothed disc 80 disposed above the gear-type winder 70, the rotating gears of the two rope winders mesh with each other, and the main drive gear 60 meshes with one of the rotating toothed discs 80.

[0025] The lifting drive motor 50 drives the main drive gear 60 to rotate, which in turn drives a rotating gear disk 80 to rotate. This rotating gear disk 80 synchronously drives another rotating gear disk 80, so that the two rotating gear disks 80 rotate synchronously, driving the two gear-type winding reels 70 to rotate synchronously, winding or releasing the suspended cable 40. By controlling the forward or reverse rotation of the lifting drive motor 50, the main drive gear 60 is driven to rotate forward or reverse, thereby controlling the rise or fall of the suspended cable 40.

[0026] In order to control the final rising or falling height of the suspension line 40, it is necessary to limit the vertical travel of the suspension line 40. Furthermore, in some embodiments of this utility model application, such as... Figures 3 to 8 As shown, the gear-type take-up coil 70 is provided with a central shaft. A limiting gear 90 is linked on the central shaft of one of the gear-type take-up coil 70s. A take-up limiting lever 91 and an unwinding limiting lever 92 are provided on the limiting gear 90. A take-up contact limiter 93 and an unwinding contact limiter 94 are provided on one side of the limiting gear 90. During the take-up stroke, the limiting gear 90 can drive the take-up limiting lever 91 and the take-up contact limiter 93 to be linked. During the unwind stroke, the limiting gear 90 can drive the unwinding limiting lever 92 and the unwinding contact limiter 94 to be linked.

[0027] Specifically, when the gear-type take-up reel 70 rotates, its central shaft also synchronously drives the limit gear 90 to rotate. When the number of winding turns of the gear-type take-up reel 70 reaches the set final height, the limit gear 90 drives the take-up limit lever to rotate from one end to the other, thereby causing the take-up limit lever 91 to touch the take-up contact limiter 93. The take-up contact limiter 93 is linked with the lifting drive motor 50 to stop the lifting drive motor 50, thus stopping the gear-type take-up reel 70 from winding. When the number of unwinding turns of the gear-type take-up reel 70 reaches the set minimum height, the limit gear 90 drives the unwind limit lever 92 to rotate from one end to the other, thereby causing the unwind limit lever 92 to touch the unwind contact limiter 94. The unwind contact limiter 94 is linked with the lifting drive motor 50 to stop the lifting drive motor 50, thus stopping the gear-type take-up reel 70 from unwinding.

[0028] To prevent the winding / unwinding length of one gear-type take-up reel 70 from being too long and inconsistent with the other gear-type take-up reel 70, thus causing the two gear-type take-up reels 70 to operate asynchronously, further, in some embodiments of this utility model application, such as Figures 3 to 8As shown, a roller frame 101 and a roller 100 are respectively provided at both ends of the top mounting body 10. A 110 is provided on the lower side of the roller 100. The weightlessness switch 110 is linked to the lifting drive motor 50. The suspension cable 40 is led out from the rope reel, passes through the roller 100 and the weightlessness switch 110, and is suspended and fixedly connected to the first lamp body 20. When one end of the first lamp body 20 is raised, the weightlessness switch detects the weightlessness 110 on that side, and the weightlessness switch 110 then links the lifting drive motor 50 to stop operation.

[0029] Furthermore, in some embodiments of this utility model application, such as Figures 5 to 8 As shown, the second lamp body 30 and the first lamp body 20 move through a line meshing transmission. A telescopic drive motor 120 is provided at the end of the first lamp body 20, and meshing gears 130 are provided on the front and rear outer sides of the first lamp body 20 respectively. The meshing gears 130 are connected to the telescopic drive motor 120 and are controlled by it to rotate forward or backward. The second lamp body 30 has a clamping space in its middle along its length direction, and the first lamp body 20 and a pair of meshing gears 130 are clamped in the clamping space. The first lamp body 20 has meshing racks 140 on its front and rear sides along its length direction, and the two ends of the meshing racks 140 are fixed to the left and right ends of the first lamp body 20. The meshing racks 140 mesh with the meshing gears 130 and can drive the second lamp body 30 to move horizontally relative to the first lamp body 20 under the drive of the meshing gears 130.

[0030] After starting, the telescopic drive motor 120 drives the meshing gears 130 on the front and rear outer sides of the first lamp body 20, which is linked to it, to rotate. Simultaneously, the meshing gears 130 engage with the meshing rack 140, causing the rack 130 to move horizontally on the meshing gears. This, in turn, drives the second lamp body 30 to move horizontally relative to the first lamp body 20. By controlling the forward or reverse rotation of the meshing gears through the telescopic drive motor, the second lamp body 30 can be extended outward or retracted inward, thereby adjusting the illumination length.

[0031] To make the second lamp body 30 move more smoothly in a straight line, further, in some embodiments of this utility model application, such as Figures 5 to 8As shown, at least one pair of auxiliary wheels 150 are provided inside the second lamp body 30. The pair of auxiliary wheels 150 are respectively located on the front and rear sides inside the second lamp body 30, and are connected to the first lamp body 20 by a connecting shaft in the middle. The second lamp body 30 is provided with a housing 31 on both its front and rear sides. A travel track 32 is provided inside the housing 31, and the auxiliary wheels 150 are limited to the travel track 32. When the second lamp body 30 moves in a straight line, the lamp housing moves relative to the first lamp body 20. A pair of auxiliary wheels 150 travel within the travel tracks 32 on both sides of the lamp housing 31, balancing the forces on the second lamp body 30 in space and preventing unilateral deviation. The travel tracks 32 within the housing 31 limit the movement path of the auxiliary wheels, transforming the "free straight movement" of the second lamp body 30 into "directional movement along the track," directly reducing swaying. The auxiliary wheels 150 pass laterally through the first lamp body 20 via a connecting shaft, forming a rigid connection between the auxiliary wheels and the first lamp body 20, ensuring the stability of the travel tracks 32 during movement, preventing the auxiliary wheels from misaligning, and simultaneously reducing rolling friction, thus reducing movement resistance and making the movement smoother.

[0032] Furthermore, in some embodiments of this utility model application, such as Figures 5 to 8 As shown, the first lamp body 20 includes a housing, a control center disposed within the housing, a first upper LED light panel 21, a first lower LED light panel 22, and an upper light-transmitting lamp cover and a lower light-transmitting lamp cover; the control center is connected with the first lamp body 20 to control the first upper LED light panel 21 and the first lower LED light panel 22, and to control the lifting and lowering of the first lamp body 20.

[0033] The second lower LED light panel 33 is provided on the front and rear sides of the second lamp body 30 respectively; the control center is connected with the second lamp body 30 to control the second lower LED light panel 33 and to control the extension and retraction of the second lamp body 30.

[0034] The control center includes motion control modules and lighting control modules; The motion control module is divided into a lifting control module and a telescopic control module, which can respectively control the lifting of the first lamp body 20 and the telescopic movement of the second lamp body 30.

[0035] The lighting control module is divided into a first lamp body 20 lighting control module and a second lamp body 30 lighting control module, which can control the lighting of the first lamp body 20 and the second lamp body 30 respectively. Specifically, it controls the first upper LED light board 21, the first lower LED light board 22 and the second lower LED light board 33. In the embodiment, the first upper LED light board 21 and the first lower LED light board 22 are controlled synchronously.

[0036] In the first lamp body 20, the lighting control module is electrically connected to the first upper LED light board 21 and the first lower LED light board 22. In the second lamp body 30, a conductor substrate 34 is provided on the front and rear sides of the second lamp body 30, and a conductive copper foil is provided on the conductor substrate 34. The lighting control module is connected to the conductive copper foil on both sides and then connected to the second lower LED light board 33.

[0037] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A lifting and telescopic electrically controlled chandelier, characterized in that, Including The top mounting body (10), the first lamp body (20), and two second lamp bodies (30) respectively located on both sides of the first lamp body (20); The first lamp body (20) is suspended and connected to the top mounting body (10); the top mounting body (10) raises or lowers the first lamp body (20) through a lifting device to control the lifting height of the first lamp body (20); The two second lamp bodies (30) can move horizontally relative to the first lamp body (20), and automatically extend outward or retract inward synchronously under electronic control command.

2. The lifting and telescopic electrically controlled chandelier according to claim 1, characterized in that, Suspension wires (40) are suspended at both ends of the top mounting body (10), and the bottom end of the suspension wires (40) is connected and fixed to the first lamp body (20); the lifting device synchronously winds up the two suspension wires (40) to synchronously raise or lower the first lamp body (20).

3. A lifting and telescopic electrically controlled chandelier according to claim 2, characterized in that, The lifting device includes a pair of rope winders installed in the top mounting body (10). The two suspension lines (40) are respectively connected to the pair of rope winders and can be simultaneously unwound and lowered or wound up and raised under the action of the rope winders.

4. A lifting and telescopic electrically controlled chandelier according to claim 3, characterized in that, The lifting device includes a lifting drive motor (50) and a main drive gear (60) connected to the output shaft of the lifting drive motor (50) and controlled by the lifting drive motor (50); the rope winder includes a gear-type winder (70) and a rotating toothed disc (80) disposed above the gear-type winder (70), the rotating gears of the two rope winders mesh with each other, and the main drive gear (60) meshes with one of the rotating toothed discs (80).

5. A lifting and telescopic electrically controlled chandelier according to claim 4, characterized in that, The gear-type take-up coiler (70) is provided with a central shaft. A limiting gear (90) is linked on the central shaft of one of the gear-type take-up coilers (70). A take-up limiting lever (91) and an unwinding limiting lever (92) are provided on the limiting gear (90). A take-up contact limiter (93) and an unwinding contact limiter (94) are provided on one side of the limiting gear (90). During the take-up stroke, the limiting gear (90) can drive the take-up limiting lever (91) and the take-up contact limiter (93) to be linked. During the unwind stroke, the limiting gear (90) can drive the unwinding limiting lever (92) and the unwinding contact limiter (94) to be linked.

6. A lifting and telescopic electrically controlled chandelier according to claim 3, characterized in that, Roller frame (101) and roller (100) are respectively provided at both ends of the top mounting body (10). A weightlessness switch (110) is provided on the lower side of the roller (100). The suspension line (40) is led out from the rope winder, passes through the roller (100) and the weightlessness switch (110), and is suspended and fixedly connected to the first lamp body (20).

7. A lifting and telescopic electrically controlled chandelier according to claim 1, characterized in that, The second lamp body (30) moves with the first lamp body (20) through a line meshing transmission; a telescopic drive motor (120) is provided at the end of the first lamp body (20), and meshing gears (130) are provided on the front and rear outer sides of the first lamp body (20), the meshing gears (130) are connected to the telescopic drive motor (120) and controlled by it to rotate forward or backward; the second lamp body (30) has a clamping space in its middle along its length direction, and the first lamp body (20) and a pair of meshing gears (130) are clamped in the clamping space; the first lamp body (20) has meshing racks (140) on its front and rear sides along its length direction, and the two ends of the meshing racks (140) are fixed to the left and right ends of the first lamp body (20); the meshing racks (140) mesh with the meshing gears (130) and can drive the second lamp body (30) to move horizontally relative to the first lamp body (20) under the drive of the meshing gears.

8. A lifting and telescopic electrically controlled chandelier according to claim 7, characterized in that, At least one pair of auxiliary wheels (150) are provided in the second lamp body (30). The pair of auxiliary wheels (150) are respectively located on the front and rear sides of the second lamp body (30), and the middle part is connected to the first lamp body (20) by a connecting shaft. The second lamp body (30) is provided with a housing (31) on both its front and rear sides. A walking track (32) is provided in the housing (31), and the auxiliary wheels are limited to the walking track (32).

9. A lifting and telescopic electrically controlled chandelier according to claim 1, characterized in that, The first lamp body (20) includes a housing, a control center located inside the housing, a first upper LED lamp board (21), a first lower LED lamp board (22), an upper light-transmitting lamp cover, and a lower light-transmitting lamp cover; the control center controls the first upper LED lamp board (21) and the first lower LED lamp board (22) in conjunction with the first lamp body (20), and controls the lifting and lowering of the first lamp body (20).

10. A lifting and telescopic electrically controlled chandelier according to claim 9, characterized in that, The second lower LED light panel (33) is provided on the front and rear sides of the second lamp body (30); the control center controls the second lower LED light panel (33) in conjunction with the second lamp body (30), and controls the extension and retraction of the second lamp body (30).

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