A lamp tube with both heat dissipation and waterproof properties and stage lamp thereof

Abstract

The present invention provides a lamp tube and a stage light having both heat dissipation and waterproof properties, wherein the lamp tube comprises a cover plate, a side plate, a light output mirror fixing seat, a bottom heat dissipation cover, a radiator and a light source fixing seat; the cover plate, the side plate, the light output mirror fixing seat and the light source fixing seat enclose an installation space for installing light sources and functional components; the radiator and the bottom heat dissipation cover are arranged below the light source fixing seat for dissipating heat from the light source and the lamp tube. The present invention not only ensures the sealing of the internal installation space and prevents the internal components from being affected by water; it also ensures the effective evacuation of heat and improves the stability of the stage light for long-term operation; it truly takes into account the design requirements of heat dissipation and waterproofness.

Description

Technical Field

[0001] The invention relates to the field of stage lamps, and in particular to a lamp tube having both heat dissipation and waterproof properties and a stage lamp thereof. Background Art

[0002] Stage lighting, also known as "stage illumination", or "lighting" for short, is one of the means of stage art modeling. It uses stage lighting equipment (such as lighting fixtures, slides, control systems, etc.) and technical means to display the environment, render the atmosphere, highlight the central characters with light color and its changes as the plot develops, create a sense of stage space and time, shape the external image of the stage performance, and provide the necessary lighting effects.

[0003] Generally, stage lights dissipate the heat generated during operation by opening heat dissipation holes on the outer shell. Since the heat dissipation holes are directly exposed to the external environment, when it rains or is splashed with water, the external water can easily flow into the stage light through the heat dissipation holes, causing a short circuit in the circuit and resulting in damage.

[0004] Although the existing stage lights with waterproof structures prevent water from entering the interior of the device, the sealed waterproof structure affects the heat dissipation effect, so that when the stage lights work for a long time, the internal heat cannot be evacuated, which easily causes damage to the internal equipment.

[0005] In summary, the existing stage lamp structure cannot take into account both heat dissipation and waterproof effects, and needs to be improved urgently. Summary of the invention

[0006] The object of the present invention is to provide a lamp tube and a stage lamp having both heat dissipation and waterproof properties, so as to solve the problem that the stage lamp structure in the prior art cannot take into account both heat dissipation and waterproof properties.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A lamp tube with both heat dissipation and waterproof properties, comprising a cover plate, a side plate, a light output mirror fixing seat, a bottom heat dissipation cover, a radiator and a light source fixing seat; the cover plate, the side plate, the light output mirror fixing seat and the light source fixing seat form an installation space for installing a light source and functional components; the radiator and the bottom heat dissipation cover are arranged below the light source fixing seat for dissipating heat from the light source and the lamp tube;

[0009] There are two side panels, which are respectively located on the left and right sides. The lower ends of the two side panels are respectively fixedly connected to the left and right sides of the light source fixing seat, and the upper ends of the two side panels are respectively fixedly connected to the left and right sides of the light output mirror fixing seat; the light source is fixed on the light source fixing seat, and the functional component is arranged above the light source and fixedly connected to the side panels; a light output mirror is fixedly connected to the light output mirror fixing seat;

[0010] The cover plate has two pieces, which are respectively fixedly connected to the front side and rear side of the side plate, the light output mirror fixing seat and the light source fixing seat; the middle part of the cover plate is arched toward the outside of the installation space, and the upper inner part of the cover plate is provided with an upper sealing connection wall protruding inward near the upper end, and the lower inner part of the cover plate is provided with a lower sealing connection wall protruding inward near the lower end; the left end, the right end, the upper sealing connection wall and the lower sealing connection wall of the cover plate form a sealing connection surface facing the installation space, and a sealing groove is provided on the sealing connection surface, and a flexible sealing strip is arranged in the sealing groove; the sealing connection surface is in contact with the front and rear side surfaces of the side plate, the light source fixing seat and the light output mirror fixing seat, and is sealed and connected by a flexible sealing strip;

[0011] An air inlet hole is provided at the lower part of the cover plate near the lower end, and the connection between the lower sealing connection wall and the cover plate is located above the inner side of all the air inlet holes;

[0012] The radiator is fixedly connected to the bottom surface of the light source fixing seat, and the bottom heat dissipation cover covers the radiator from below, and the bottom heat dissipation cover is provided with heat dissipation holes; the upper ends of the left and right sides of the bottom heat dissipation cover are respectively fixedly connected to the lower ends of the two side panels; the upper ends of the front and rear sides of the bottom heat dissipation cover are respectively spliced ​​with the lower ends of the two cover plates.

[0013] Furthermore, the heat sink comprises heat dissipation fins, a lamp tube heat dissipation fan and a heat dissipation fixing plate; the lamp tube heat dissipation fan is fixed to the front side and the rear side of the light source fixing seat through the heat dissipation fixing plate, and is located below the lower sealing connection wall of the cover plate; the heat dissipation fins comprise a plurality of metal sheets arranged in a vertical direction and parallel to each other, and an air duct passing through from top to bottom is formed between the metal sheets; the middle portion of the heat dissipation fins is fixedly connected to the bottom of the bottom surface of the light source fixing seat, and the side of the heat dissipation fins extends to the bottom of the lamp tube heat dissipation fan;

[0014] The air outlet direction of the lamp tube heat dissipation fan is toward the heat dissipation fins, so that external air is introduced from the air inlet holes on the cover plate, blown toward the heat dissipation fins and discharged from the heat dissipation holes of the bottom heat dissipation cover.

[0015] Furthermore, the flexible sealing strip is a silicone sealing strip.

[0016] Furthermore, the lamp tube also includes a top cover, which is sleeved on the top of the light output mirror fixing seat and fixedly connected to the light output mirror fixing seat; the lower end of the top cover is respectively spliced ​​with two side panels and two cover panels;

[0017] The top surface of the light output mirror is higher than the top surface of the light output mirror fixing seat, and the top of the top cover has a folded edge bent inward and downward, which is used to assist in limiting the light output mirror; there is a gap between the folded edge and the top surface of the light output mirror, which is used for the accumulated water on the top surface of the light output mirror to flow into the side of the light output mirror fixing seat and the space above the upper sealing connection wall;

[0018] In the cover plate, a drainage hole is provided at the connection between the top surface of the upper sealing connection wall and the cover plate, so as to discharge the accumulated water above the upper sealing connection wall.

[0019] Furthermore, on the heat dissipation fixing plate, two duct heat dissipation fans are respectively arranged at the front side and the rear side corresponding to the light source fixing seat, and one duct heat dissipation fan is respectively arranged at the left side and the right side corresponding to the light source fixing seat.

[0020] Furthermore, the heat dissipation fins also include a cooling tube, which is bent in a circuitous shape and vertically penetrates each metal sheet.

[0021] A stage lamp comprises the above-mentioned lamp tube with both heat dissipation and waterproof properties, and also comprises a support arm and a base, wherein the support arm is U-shaped, and the upper ends of both sides of the support arm are respectively connected to the side plates on the left and right sides of the lamp tube through a first bearing, so that the lamp tube can rotate along the axis in the horizontal direction; the base is rotatably connected to the bottom of the support frame through a second bearing, so that the support frame can rotate along the axis in the vertical direction.

[0022] Furthermore, the first bearing is fixedly connected to the side plate of the lamp tube through an oil seal.

[0023] Furthermore, the outer ring of the second bearing is fixedly connected to the base, and the inner ring of the second bearing is fixedly connected to the bottom of the support frame through a connecting shaft;

[0024] A sealing tube is provided in one of the side arms of the support arm, one end of the sealing tube is connected to the axis of the first bearing, and is communicated with the inside of the lamp tube through the axis of the first bearing; the other end of the sealing tube is connected to the side of the connecting shaft, and is communicated with the connecting shaft and the axis of the second bearing, and further communicated with the inside of the base; a power supply circuit and a control circuit are provided in the base, and the power supply line and control line of the power supply circuit and the control circuit extend from the sealing tube to the lamp tube, and are electrically connected to the light source and functional components in the lamp tube;

[0025] A base cooling fan is fixed to the bottom of the other side arm of the support arm, and the air outlet of the base cooling fan is arranged toward the base. The power cord of the base cooling fan passes through the other side arm and is connected to the first bearing through a waterproof joint, and penetrates into the lamp tube from the middle of the first bearing.

[0026] Furthermore, the base includes a base body and a bottom cover, the second bearing is fixedly connected to the upper part of the base body through an oil seal, the bottom surface of the base body is open, and the interior of the base body has a connecting rod extending toward the bottom surface; the bottom cover is arranged on the bottom surface of the base body and is fixedly connected to the base body through a connecting rod, and a sealing sleeve is sleeved on the connecting rod; the bottom cover and the base body are covered on all sides, and a flexible sealing strip is clamped at the covering connection.

[0027] In the embodiment of the present invention, the cover plate, side plates, light output mirror fixing seat and light source fixing seat of the lamp tube form a closed installation space, and the waterproofness of the lamp tube is enhanced by the flexible sealing strip; at the same time, the light source fixing seat is used to conduct the heat of the light source to the radiator, and a heat dissipation space and an air flow channel are formed under the light source fixing seat to achieve heat dissipation of the light source and the lamp tube; the waterproofness and heat dissipation are cleverly taken into account.

[0028] Through the above ingenious structural design, the present invention not only ensures the sealing of the internal installation space and prevents the internal devices from being affected by water, but also ensures the effective evacuation of heat and improves the stability of the stage light for long-term operation; it truly takes into account the design requirements of heat dissipation and waterproofness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an exploded view of a stage light provided by an embodiment of the present invention.

[0030] Figure 2 is an exploded view of the lamp tube in the embodiment of the present invention.

[0031] Figure 3 Schematic diagram of the structure of the cover plate in the embodiment of the present invention.

[0032] Figure 4 It is a schematic structural diagram of a radiator in an embodiment of the present invention.

[0033] Figure 5 2 is a cross-sectional structural diagram of a lamp tube in an embodiment of the present invention.

[0034] Figure 6 It is a heat dissipation principle diagram of the lamp tube in the embodiment of the present invention.

[0035] Figure 7 is an exploded view of the support arm and the base in an embodiment of the present invention.

[0036] Figure 8 It is a cross-sectional view of a stage light provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figure 1 As shown, a stage light provided by an embodiment of the present invention comprises a lamp tube 1, a support arm 2 and a base 3. The support arm 2 is U-shaped, and the upper ends of both sides of the support arm 2 are respectively connected to the left and right sides of the lamp tube 1 through a first bearing 41, so that the lamp tube 1 can rotate along the axis in the horizontal direction; the base 3 is rotatably connected to the bottom of the support frame 2 through a second bearing 42, so that the support frame 2 can rotate along the axis in the vertical direction.

[0039] Combination Figures 2 to 6 As shown, the lamp tube 1 includes a cover plate 14, a side plate 11, a light output mirror fixing seat 13, a bottom heat dissipation cover 15, a radiator 16 and a light source fixing seat 12; the cover plate 14, the side plate 11, the light output mirror fixing seat 13 and the light source fixing seat 12 form an installation space for installing light sources and functional components; the radiator 16 and the bottom heat dissipation cover 15 are arranged below the light source fixing seat 12 to dissipate heat for the light source and the lamp tube 1. In order to facilitate the display of the internal structure of the lamp tube 1, the light source and functional components are not shown in the figure.

[0040] Specifically, there are two side panels 11, located on the left and right sides respectively. The middle parts of the two side panels 11 are rotatably connected to the upper ends of the two sides of the support arm 2 through the first bearing 41 respectively. The first bearing 41 and the side panels 11 are connected through an oil seal 44 to ensure sealing and waterproofing. The lower ends of the two side panels 11 are fixedly connected to the left and right sides of the light source fixing seat 12 respectively, and the upper ends of the two side panels 11 are fixedly connected to the left and right sides of the light output mirror fixing seat 13 respectively; the light source is fixed on the light source fixing seat 12, and the functional component is arranged above the light source and fixedly connected to the side panel 11; a light output mirror 17 is fixedly connected to the light output mirror fixing seat 13.

[0041] The cover plate 14 has two parts, which are respectively fixedly connected to the front side and rear side of the side plate 11, the light output mirror fixing seat 13 and the light source fixing seat 12; the middle part of the cover plate 14 is arched toward the outside of the installation space, and the upper inner part of the cover plate 14 is provided with an inwardly protruding upper sealing connecting wall 141 near the upper end, and the lower inner part of the cover plate 14 is provided with an inwardly protruding lower sealing connecting wall 142 near the lower end; the left end, the right end, the upper sealing connecting wall 141 and the lower sealing connecting wall 142 of the cover plate 14 form a sealing connecting surface facing the installation space, and a sealing groove 143 is opened on the sealing connecting surface, and a flexible sealing strip 19 is arranged in the sealing groove 143; the sealing connecting surface is in contact with the front and rear side of the side plate 11, the light source fixing seat 12 and the light output mirror fixing seat 13, and is sealed and connected by the flexible sealing strip 19. The inner side surface of the upper sealed connecting wall 141 fits with the light output mirror fixing seat 13 , the inner side surface of the lower sealed connecting wall 142 fits with the light source fixing seat 12 , and the left and right ends of the cover plate 14 fit with the two side plates 11 respectively.

[0042] The lower part of the cover plate 14 is provided with an air inlet hole 140 near the lower end, and the connection between the lower sealing connection wall 142 and the cover plate 14 is located above the inner side of all the air inlet holes 140. That is, all the air inlet holes 140 are not connected to the internal installation space of the lamp tube 1.

[0043] The radiator 16 is fixedly connected to the bottom of the light source fixing base 12, and the bottom heat dissipation cover 15 covers the radiator 16 from the bottom, and the bottom heat dissipation cover 15 is provided with heat dissipation holes 150; the upper ends of the left and right sides of the bottom heat dissipation cover 15 are respectively fixedly connected to the lower ends of the two side panels 11; the upper ends of the front and rear sides of the bottom heat dissipation cover 15 are respectively spliced ​​with the lower ends of the two cover plates 14.

[0044] Specifically, Figure 4 As shown, the heat sink 16 includes heat dissipation fins 163, a lamp tube heat dissipation fan 162 and a heat dissipation fixing plate 161; the lamp tube heat dissipation fan 162 is fixed to the front side and the rear side of the light source fixing seat 12 through the heat dissipation fixing plate 161, and is located below the lower sealing connection wall 142 of the cover plate 14; the heat dissipation fins 163 include a plurality of metal sheets arranged in a vertical direction and parallel to each other, and an air duct passing through from top to bottom is formed between the metal sheets; the middle part of the heat dissipation fins 163 is fixedly connected to the bottom of the bottom surface of the light source fixing seat 12, and the side of the heat dissipation fins 163 extends to the bottom of the lamp tube heat dissipation fan 162;

[0045] Combination Figure 5 and Figure 6 As shown, the air outlet direction of the lamp tube heat dissipation fan 162 is toward the heat dissipation fins 163, so as to introduce external air from the air inlet hole 140 on the cover plate 14, blow it toward the heat dissipation fins 163 and discharge it from the heat dissipation hole 150 of the bottom heat dissipation cover 15.

[0046] In the embodiment of the present invention, two duct heat dissipation fans 162 are respectively arranged on the heat dissipation fixing plate 161 corresponding to the front and rear sides of the light source fixing seat 12, and one duct heat dissipation fan 162 is respectively arranged on the left and right sides of the light source fixing seat 12.

[0047] As an improvement, the heat dissipation fins 163 further include a cooling tube 164 . The cooling tube 164 is bent in a circuitous shape and vertically penetrates each metal sheet.

[0048] Furthermore, the lamp tube 1 also includes a top cover 18, which is sleeved on the top of the light output mirror fixing seat 13 and fixedly connected to the light output mirror fixing seat 13; the lower end of the top cover 18 is spliced ​​with the two side panels 11 and the two cover panels 14 respectively.

[0049] like Figure 5As shown, the top surface of the light output mirror 17 is higher than the top surface of the light output mirror fixing seat 13, and the top of the top cover 18 has a folded edge bent inward and downward, which is used to assist in limiting the light output mirror 17; there is a gap between the folded edge and the top surface of the light output mirror 17, which is used for the accumulated water on the top surface of the light output mirror 17 to flow into the side of the light output mirror fixing seat 13 and the space above the upper sealed connecting wall 141. In the cover plate 14, a drainage hole 144 is opened at the connection between the top surface of the upper sealed connecting wall 141 and the cover plate 14, which is used to discharge the accumulated water above the upper sealed connecting wall 141.

[0050] In the embodiment of the present invention, the cover plate 14, the side plate 11, the light output mirror fixing seat 13 and the light source fixing seat 12 of the lamp tube form a closed installation space, and the waterproofness of the lamp tube is enhanced by the flexible sealing strip 19; at the same time, the light source fixing seat 12 is also used to conduct the heat of the light source to the radiator 16, and a heat dissipation space and an air flow channel are formed under the light source fixing seat 12 to achieve heat dissipation of the light source and the lamp tube 1; the waterproofness and heat dissipation are cleverly taken into account.

[0051] In the lamp tube 1 of the embodiment of the present invention, a drainage structure for accumulated water is formed around the top light output mirror 17 through the drainage holes 144 on the top cover 18 and the cover plate 14. When water accumulates on the surface of the light output mirror 17 to form accumulated water, it can flow into the upper sealing connection wall 141 of the cover plate 14 through the gap between the top cover 18 and the light output mirror 17, and finally flow out through the drainage holes 144. This structure prevents the accumulated water on the top of the lamp tube 1 from flowing into the internal installation space by reasonably draining the accumulated water.

[0052] like Figure 7 and Figure 8 As shown, the outer ring of the second bearing 42 is fixedly connected to the base 3, and the inner ring of the second bearing 42 is fixedly connected to the bottom of the support frame 2 through a connecting shaft 43;

[0053] A sealing tube 21 is provided in one of the side arms of the support arm 2, one end of the sealing tube 21 is connected to the axis of the first bearing 41, and is connected to the interior of the lamp tube 1 through the axis of the first bearing 41; the other end of the sealing tube 21 is connected to the side of the connecting shaft 43, and is connected to the axis of the connecting shaft 43 and the second bearing 42, and further connected to the interior of the base 3; a power supply circuit and a control circuit are provided in the base 3, and the power supply line and control line 210 of the power supply circuit and the control circuit extend through the sealing tube 21 into the lamp tube, and are electrically connected to the light source and functional components in the lamp tube 1.

[0054] Furthermore, a base cooling fan 22 is fixed at the bottom of the other side arm of the support arm 2, and the air outlet of the base cooling fan 22 is arranged toward the base 3. The power cord 220 of the base cooling fan 22 passes through the other side arm and is connected to the first bearing 41 through a waterproof joint 221, and penetrates into the lamp tube 1 from the middle of the first bearing 41. The base cooling fan is used to blow air to the surface of the base 3 to appropriately assist the base 3 in heat dissipation.

[0055] Furthermore, the base 3 includes a base body 31 and a bottom cover 32, the second bearing 42 is fixedly connected to the upper part of the base body 31 through an oil seal 44, the bottom surface of the base body 31 is open, and the base body 31 has a connecting rod 34 extending to the bottom surface; the bottom cover 32 is covered on the bottom surface of the base body 31 and is fixedly connected to the base body 31 through the connecting rod 34; a sealing sleeve is sleeved on the connecting rod 34 to prevent external water from flowing into the base 3 along the connecting rod 34. The bottom cover 32 and the base body 31 are covered on all sides, and a flexible sealing strip 33 is sandwiched at the covering connection to prevent external water from penetrating into the base from the covering connection between the bottom cover 32 and the base body 31.

[0056] Specifically, in the embodiment of the present invention, the flexible sealing strips 19 and 33 used in the lamp tube 1 and the base 3 are silicone sealing strips.

[0057] The connection structure of the base body 31 and the bottom cover 32 can ensure that the internal space of the base 3 remains sealed, protecting various electronic components in the base. At the same time, the power supply line and the control line 210 led out of the power supply circuit and the control circuit are introduced into the lamp tube 1 through the sealed pipeline composed of the second bearing 42, the sealing tube 21 and the first bearing 41, which can effectively prevent the line from short-circuiting when encountering water, and fully meet the waterproof requirements of the stage lamp.

[0058] Through the above ingenious structural design, the present invention not only ensures the sealing of the internal installation space and prevents the internal devices from being affected by water, but also ensures the effective evacuation of heat and improves the stability of the stage light for long-term operation; it truly takes into account the design requirements of heat dissipation and waterproofness.

[0059] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A lamp tube with both heat dissipation and waterproof properties, characterized in that: It includes a cover plate, a side plate, a light output mirror fixing seat, a bottom heat dissipation cover, a radiator and a light source fixing seat; the cover plate, the side plate, the light output mirror fixing seat and the light source fixing seat form an installation space for installing the light source and functional components; the radiator and the bottom heat dissipation cover are arranged below the light source fixing seat for dissipating heat to the light source and the lamp tube; There are two side panels, which are respectively located on the left and right sides. The lower ends of the two side panels are respectively fixedly connected to the left and right sides of the light source fixing seat, and the upper ends of the two side panels are respectively fixedly connected to the left and right sides of the light output mirror fixing seat; the light source is fixed on the light source fixing seat, and the functional component is arranged above the light source and fixedly connected to the side panels; a light output mirror is fixedly connected to the light output mirror fixing seat; The cover plate has two pieces, which are respectively fixedly connected to the front side and rear side of the side plate, the light output mirror fixing seat and the light source fixing seat; the middle part of the cover plate is arched toward the outside of the installation space, and the upper inner part of the cover plate is provided with an upper sealing connection wall protruding inward near the upper end, and the lower inner part of the cover plate is provided with a lower sealing connection wall protruding inward near the lower end; the left end, the right end, the upper sealing connection wall and the lower sealing connection wall of the cover plate form a sealing connection surface facing the installation space, and a sealing groove is provided on the sealing connection surface, and a flexible sealing strip is arranged in the sealing groove; the sealing connection surface is in contact with the front and rear side surfaces of the side plate, the light source fixing seat and the light output mirror fixing seat, and is sealed and connected by a flexible sealing strip; An air inlet hole is provided at the lower part of the cover plate near the lower end, and the connection between the lower sealing connection wall and the cover plate is located above the inner side of all the air inlet holes; The radiator is fixedly connected to the bottom surface of the light source fixing seat, and the bottom heat dissipation cover covers the radiator from below, and the bottom heat dissipation cover is provided with heat dissipation holes; the upper ends of the left and right sides of the bottom heat dissipation cover are respectively fixedly connected to the lower ends of the two side panels; the upper ends of the front and rear sides of the bottom heat dissipation cover are respectively spliced ​​with the lower ends of the two cover plates.

2. The lamp tube with both heat dissipation and waterproof properties according to claim 1, characterized in that: The heat sink comprises heat dissipation fins, a lamp tube heat dissipation fan and a heat dissipation fixing plate; the lamp tube heat dissipation fan is fixed to the front side and the rear side of the light source fixing seat through the heat dissipation fixing plate, and is located below the lower sealing connection wall of the cover plate; the heat dissipation fins comprise a plurality of metal sheets arranged in a vertical direction and parallel to each other, and an air duct passing through from top to bottom is formed between the metal sheets; the middle portion of the heat dissipation fins is fixedly connected to the bottom of the bottom surface of the light source fixing seat, and the side of the heat dissipation fins extends to the bottom of the lamp tube heat dissipation fan; The air outlet direction of the lamp tube heat dissipation fan is toward the heat dissipation fins, so that external air is introduced from the air inlet holes on the cover plate, blown toward the heat dissipation fins and discharged from the heat dissipation holes of the bottom heat dissipation cover.

3. The lamp tube with both heat dissipation and waterproof properties according to claim 1, characterized in that: The flexible sealing strip is a silicone sealing strip.

4. The lamp tube with both heat dissipation and waterproof properties according to claim 1, characterized in that: The lamp tube also includes a top cover, which is sleeved on the top of the light output mirror fixing seat and fixedly connected to the light output mirror fixing seat; the lower end of the top cover is respectively spliced ​​with two side panels and two cover panels; The top surface of the light output mirror is higher than the top surface of the light output mirror fixing seat, and the top of the top cover has a folded edge bent inward and downward, which is used to assist in limiting the light output mirror; there is a gap between the folded edge and the top surface of the light output mirror, which is used for the accumulated water on the top surface of the light output mirror to flow into the side of the light output mirror fixing seat and the space above the upper sealing connection wall; In the cover plate, a drainage hole is provided at the connection between the top surface of the upper sealing connection wall and the cover plate, so as to discharge the accumulated water above the upper sealing connection wall.

5. The lamp tube with both heat dissipation and waterproof properties according to claim 2, characterized in that: The heat dissipation fixing plate is provided with two air duct heat dissipation fans at the front side and the rear side corresponding to the light source fixing seat, and one air duct heat dissipation fan is provided at the left side and the right side corresponding to the light source fixing seat.

6. The lamp tube with both heat dissipation and waterproof properties according to claim 2, characterized in that: The heat dissipation fins also include a cooling tube, which is bent in a circuitous shape and vertically penetrates each metal sheet.

7. A stage lamp, comprising the lamp tube having both heat dissipation and waterproof properties as claimed in any one of claims 1 to 6, characterized in that: It also includes a support arm and a base, the support arm is U-shaped, and the upper ends of the support arm are respectively connected to the side panels on the left and right sides of the lamp tube through a first bearing, so that the lamp tube can rotate along the horizontal axis; the base is rotatably connected to the bottom of the support frame through a second bearing, so that the support frame can rotate along the vertical axis.

8. The stage light according to claim 7, characterized in that: The first bearing is fixedly connected to the side plate of the lamp tube through an oil seal.

9. The stage light according to claim 7, characterized in that: The outer ring of the second bearing is fixedly connected to the base, and the inner ring of the second bearing is fixedly connected to the bottom of the support frame through a connecting shaft; A sealing tube is provided in one of the side arms of the support arm, one end of the sealing tube is connected to the axis of the first bearing, and is communicated with the inside of the lamp tube through the axis of the first bearing; the other end of the sealing tube is connected to the side of the connecting shaft, and is communicated with the connecting shaft and the axis of the second bearing, and further communicated with the inside of the base; a power supply circuit and a control circuit are provided in the base, and the power supply line and control line of the power supply circuit and the control circuit extend from the sealing tube to the lamp tube, and are electrically connected to the light source and functional components in the lamp tube; A base cooling fan is fixed to the bottom of the other side arm of the support arm, and the air outlet of the base cooling fan is arranged toward the base. The power cord of the base cooling fan passes through the other side arm and is connected to the first bearing through a waterproof joint, and penetrates into the lamp tube from the middle of the first bearing.

10. The stage light according to claim 7, characterized in that: The base includes a base body and a bottom cover, the second bearing is fixedly connected to the upper part of the base body through an oil seal, the bottom surface of the base body is open, and the interior of the base body is provided with a connecting rod extending toward the bottom surface; the bottom cover is arranged on the bottom surface of the base body and is fixedly connected to the base body through a connecting rod, and a sealing sleeve is sleeved on the connecting rod; the bottom cover and the base body are covered on all sides, and a flexible sealing strip is clamped at the covering connection.

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