Focusing lighting lamp

By designing the rotation, flip and focus drive mechanism in the lighting fixture, the problems of poor stability and insufficient light source power of the existing focus lamps are solved, and stable and adjustable light projection and good heat dissipation effect are achieved.

CN119778684AActive Publication Date: 2025-04-08ZHONGSHAN SIKI LIGHTING CO LTD
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Patent Information

Application Number
CN202510252115.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-04-08
Estimated Expiration
2045-03-05

AI Technical Summary

Technical Problem

The existing focus lamps have poor stability, the spots are prone to shake, and the low-power light source is difficult to meet outdoor lighting needs.

Method used

A lighting fixture including a rotating bracket, a rotary drive mechanism, a flip drive mechanism and a focus drive mechanism are designed. Through these drive mechanisms, the lamp head can be rotated, flipped and adjusted for a stable and adjustable light projection.

Benefits of technology

The stability of the lamp is improved, the light projection is more stable, which can meet outdoor lighting needs, and extend the service life through effective heat dissipation design.

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Abstract

The invention discloses a focus-adjustable lighting lamp which comprises a base and is characterized in that a rotating support is movably arranged on the base, a rotating driving mechanism capable of driving the rotating support to rotate is arranged in the base, a lamp holder is movably arranged on the rotating support, and a focusing device is arranged on the lamp holder. One side of the rotating support is provided with an overturning driving mechanism capable of driving the lamp holder to overturn relative to the rotating support to adjust the angle, a light-emitting LED is arranged in the bottom of the lamp holder, a lens is movably arranged in the lamp holder, the rear end of the lamp holder is provided with a plurality of cooling fins, and the cooling fins are arranged in the lamp holder. And a focusing driving mechanism capable of driving the lens to move back and forth relative to the light-emitting LED so as to adjust the focal length is arranged on the radiating fin. In order to overcome the defects in the prior art, the invention provides the lighting lamp which is simple in structure, convenient to focus and good in heat dissipation effect.
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Description

Technical Field

[0001] The invention relates to the technical field of lighting fixtures, and in particular to a focus-adjustable lighting fixture. Background Art

[0002] With the continuous development of electronic technology, various LED products have appeared on the market, and focusing lamps are one of these numerous LED products. The stability of focusing lamps in the prior art is poor, and the projected light spot is prone to shaking, which affects the projection effect. Generally, focusing lamps usually use low-power LED lamp beads as light sources. However, with the continuous improvement of people's needs, low-power light sources can no longer meet outdoor lighting needs. Therefore, how to use limited space to achieve focusing, heat dissipation, etc. has become a problem that needs to be solved urgently in the industry. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a lighting fixture with a simple structure, convenient focusing and good heat dissipation effect.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following scheme: a focusable lighting fixture, including a base, characterized in that: a rotating bracket is movably arranged on the base, a rotating drive mechanism that can drive the rotating bracket to rotate is arranged in the base, a lamp head is movably arranged on the rotating bracket, a flipping drive mechanism that can drive the lamp head to flip and adjust the angle relative to the rotating bracket is arranged on one side of the rotating bracket, a light-emitting LED is arranged at the bottom of the lamp head, a lens is movably arranged in the lamp head, a plurality of heat sinks are arranged on the rear end of the lamp head, and a focusing drive mechanism that can drive the lens to move forward and backward relative to the light-emitting LED to adjust the focal length is arranged on the heat sink.

[0005] As another improvement of the focusable lighting fixture of the present invention, the rotation drive mechanism includes a rotating cylinder movably arranged on the base, the rotating bracket is connected to the rotating cylinder, a first right-angle motor is arranged in the base, and the rotating cylinder is connected to the output shaft of the first right-angle motor.

[0006] As another improvement of the focusable lighting fixture of the present invention, the flipping drive mechanism includes a second right-angle motor arranged on one side of the rotating bracket, the lamp head is movably arranged on the rotating bracket through a rotating shaft, and the output shaft of the second right-angle motor is connected to the rotating shaft.

[0007] As another improvement of the adjustable-focus lighting fixture of the present invention, the focusing drive mechanism includes a mounting plate arranged on the heat sink, a rotating motor is provided on the mounting plate, a driving screw is provided on the output end of the rotating motor, an adjustment seat is provided in the lamp head, a positioning clamping ring is provided on the outer wall of the lens end, the positioning clamping ring is pressed on the end of the adjustment seat, a light-transmitting grating plate is provided outside the lens end, the light-transmitting grating plate is connected to the adjustment seat through a screw-on cover, a plurality of through holes are arranged at intervals on the lamp head, a connecting column is provided at a position corresponding to the through hole at the rear end of the adjustment seat, the connecting column is arranged in the through hole, a connecting ring is provided at the rear end of the connecting column, a screw sleeve is provided at a position corresponding to the connecting ring and the driving screw, and the screw sleeve is screwed onto the driving screw.

[0008] As another improvement of the focusable lighting fixture of the present invention, an outer cover is provided on the base, and the rotating bracket, rotating drive mechanism, lamp head, flip drive mechanism, lens, and focusing drive mechanism are all arranged in the outer cover, and a plurality of clamping mechanisms are evenly distributed along the circumferential direction on the front outer wall of the outer cover.

[0009] As another improvement of the focusable lighting fixture of the present invention, an arc accommodating groove and a long accommodating groove arranged along the axial direction are arranged on the outer wall of the outer cover, the arc accommodating groove and the long accommodating groove are connected to each other, an adjusting rod is arranged in the long accommodating groove, a clamping plate is arranged in the arc accommodating groove, and the clamping plate is connected to the adjusting rod.

[0010] As another improvement of the focusable lighting fixture of the present invention, an opening and closing driving mechanism that can simultaneously drive multiple clamping mechanisms to open and close synchronously is provided at the front end of the outer cover, and the opening and closing driving mechanism includes a driving gear ring arranged on the front side of the outer cover, and a transmission gear is provided at the corresponding position of the adjusting rod and the driving gear ring, and the driving gear ring is meshed with the transmission gear.

[0011] As another improvement of the focus-adjustable lighting fixture of the present invention, a heat dissipation fan is provided on the heat sink, and heat dissipation slots are provided on the base.

[0012] As another improvement of the focusable lighting fixture of the present invention, a water cooling mechanism is provided in the base, and the water cooling mechanism includes a water collecting tank arranged in the base, an impeller is provided in the water collecting tank, a water inlet pipe is provided on one side of the water collecting tank, a water outlet pipe is provided on the other side of the water collecting tank, a mounting seat is provided in the lamp holder, the light-emitting LED is arranged in the mounting seat, a cooling water tank is provided in the mounting seat, the water inlet pipe is connected to one side of the cooling water tank, the water outlet pipe is connected to the other side of the cooling water tank, the middle part of the water outlet pipe is circuitously arranged to pass through the heat sink, a driving gear is provided outside the cooling fan, the driving gear is connected to the rotating shaft of the cooling fan, a connecting rotating shaft is provided at the center position of the impeller, the connecting rotating shaft passes through the water collecting tank and extends to the driving gear, and a transmission pinion that can mesh with the driving gear is provided at the lower end of the connecting rotating shaft.

[0013] As another improvement of the focus-adjustable lighting fixture of the present invention, a spiral air duct is provided on the heat sink, and an air collecting cover is provided on the air outlet end of the heat dissipation fan, and the air outlet end of the air collecting cover is connected to the spiral air duct.

[0014] In summary, the present invention has the following beneficial effects compared with the prior art: 1. In the present invention, the lens is effectively fixed on the adjustment seat by means of a screw-on cover and a light-transmitting grille plate, and the connecting column cooperates with the through hole on the lamp holder. When the rotary motor drives the driving screw to rotate, the movement process of the adjustment seat is more stable and does not shake.

[0015] Second, the present invention can drive the lamp head to flip relative to the rotating bracket to adjust the light output angle through the flip driving mechanism, and can accurately project light to a specific area as needed, which is convenient to adjust.

[0016] 3. In the present invention, the heat emitted from the heat sink can be blown out of the outer cover by the heat dissipation fan. In addition, the impeller can be turned intermittently or uninterruptedly during the rotation of the heat dissipation fan, thereby driving the coolant filled in the water collecting tank, the water outlet pipe, the water inlet pipe, and the cooling water tank to circulate, so that the heat generated by the light-emitting LED can be taken away, thereby achieving the effect of rapid heat dissipation and good heat dissipation effect, thereby effectively ensuring the normal use of the light-emitting LED and effectively extending the service life.

[0017] Fourth, in the present invention, a spiral air duct is provided on the heat sink, and a wind collecting cover connected to the spiral air duct is provided on the air outlet end of the heat dissipation fan, so that the heat emitted by the heat sink can be effectively sent directly out of the outer cover, greatly improving the overall heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0019] Figure 2 It is one of the internal structure schematic diagrams of the present invention.

[0020] Figure 3 for Figure 2 Schematic cross-section diagram of .

[0021] Figure 4 It is an exploded schematic diagram of the lamp holder and the focusing drive mechanism of the present invention.

[0022] Figure 5 This is the second schematic diagram of the internal structure of the present invention.

[0023] Figure 6 This is one of the schematic diagrams of the fourth embodiment of the present invention.

[0024] Figure 7 This is the second schematic diagram of the fourth embodiment of the present invention.

[0025] Figure 8 for Figure 7 A magnified schematic diagram of center A.

[0026] Fig. 9 It is a schematic diagram of a fifth embodiment of the present invention.

[0027] In the figure: 1, base; 2, rotating bracket; 3, rotating drive mechanism; 31, rotating cylinder; 32, first right-angle motor; 4, lamp head; 5, flip drive mechanism; 51, second right-angle motor; 52, rotating shaft; 6, light-emitting LED; 7, lens; 8, heat sink; 9, focusing drive mechanism; 91, mounting plate; 92, rotating motor; 93, driving screw; 94, adjusting seat; 95, connecting column; 96, connecting ring; 10, positioning clamping ring; 11, light-transmitting grille plate; 12, screw cover; 13, outer Cover; 14, snap-on mechanism; 141, accommodating arc groove; 142, accommodating long groove; 143, adjusting rod; 144, snap-on plate; 15, opening and closing drive mechanism; 151, driving gear ring; 152, transmission gear; 16, cooling fan; 17, water cooling mechanism; 171, water collecting tank; 172, impeller; 173, water inlet pipe; 174, water outlet pipe; 175, mounting seat; 177, driving large gear; 178, connecting rotating shaft; 179, transmission small gear; 18, spiral air duct; 19, wind collecting cover. DETAILED DESCRIPTION

[0028] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with specific implementation methods.

[0029] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0030] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-9 The present invention discloses a focus-adjustable lighting fixture, comprising a base 1, a rotating bracket 2 is movably arranged on the base 1, a rotating driving mechanism 3 capable of driving the rotating bracket 2 to rotate is arranged in the base 1, a lamp head 4 is movably arranged on the rotating bracket 2, a flip driving mechanism 5 capable of driving the lamp head 4 to flip and adjust the angle relative to the rotating bracket 2 is arranged on one side of the rotating bracket 2, a light-emitting LED 6 is arranged at the bottom of the lamp head 4, a lens 7 is movably arranged in the lamp head 4, a plurality of heat sinks 8 are arranged on the rear end of the lamp head 4, and a focus driving mechanism 9 capable of driving the lens 7 to move forward and backward relative to the light-emitting LED 6 to adjust the focal length is arranged on the heat sink 8.

[0033] In the present invention, the direction of the light can be changed by flipping the driving mechanism 5 so that the light can irradiate a specific area, and the adjustment is convenient; the relative position of the lens 7 and the light-emitting LED 6 can be conveniently adjusted by the focusing driving mechanism 9, thereby changing the focusing state of the light and obtaining a good focusing or floodlighting effect, meeting the needs of short-distance lighting and long-distance projection lighting.

[0034] The rotary drive mechanism 3 of the present invention comprises a rotating cylinder 31 movably arranged on the base 1 , the rotating bracket 2 is connected to the rotating cylinder 31 , a first right-angle motor 32 is arranged in the base 1 , and the rotating cylinder 31 is connected to the output shaft of the first right-angle motor 32 .

[0035] The flip driving mechanism 5 of the present invention comprises a second right-angle motor 51 disposed on one side of the rotating bracket 2, the lamp head 4 is movably disposed on the rotating bracket 2 via a rotating shaft 52, and the output shaft of the second right-angle motor 51 is connected to the rotating shaft 52. The present invention can drive the lamp head 4 to flip relative to the rotating bracket 2 through the second right-angle motor 51, so as to adjust the irradiation angle of the light.

[0036] The focusing drive mechanism 9 of the present invention includes a mounting plate 91 arranged on the heat sink 8, a rotating motor 92 is provided on the mounting plate 91, a driving screw 93 is provided on the output end of the rotating motor 92, an adjustment seat 94 is provided in the lamp holder 4, a positioning clamping ring 10 is provided on the outer wall of the end of the lens 7, the positioning clamping ring 10 is pressed on the end of the adjustment seat 94, a light-transmitting grating plate 11 is provided outside the end of the lens 7, the light-transmitting grating plate 11 is connected to the adjustment seat 94 through a screw-on cover 12, a plurality of through holes are arranged at intervals on the lamp holder 4, a connecting column 95 is provided at a position corresponding to the through hole at the rear end of the adjustment seat 94, the connecting column 95 is arranged in the through hole, a connecting ring 96 is provided at the rear end of the connecting column 95, a screw sleeve is provided at a position corresponding to the connecting ring 96 and the driving screw 93, and the screw sleeve is screwed on the driving screw 93. In the present invention, the lens is effectively fixed on the adjustment seat by means of a screw-on cover and a light-transmitting grid plate, and the connecting column cooperates with the through hole on the lamp holder, so that when the rotary motor drives the driving screw to rotate, the movement process of the adjustment seat is more stable and does not shake.

[0037] In the first embodiment of the present invention, an outer cover 13 is provided on the base 1, and the rotating bracket 2, the rotating driving mechanism 3, the lamp head 4, the flip driving mechanism 5, the lens 7, and the focusing driving mechanism 9 are all arranged in the outer cover 13, and a plurality of clamping mechanisms 14 are evenly distributed along the circumferential direction on the front outer wall of the outer cover 13. An arc accommodating groove 141 and an accommodating long groove 142 arranged along the axial direction are provided on the outer wall of the outer cover 13, and the arc accommodating groove 141 and the accommodating long groove 142 are connected to each other, and an adjustment rod 143 is provided in the accommodating long groove 142, and a clamping plate 144 is provided in the arc accommodating groove 141, and the clamping plate 144 is connected to the adjustment rod 143. In the present invention, it can be used as a downlight through the clamping mechanism 14. One end of the adjustment rod 143 in the present invention extends out of the outer end of the outer cover 13, and is provided with an adjustment notch, which can be adjusted by a screwdriver, but this embodiment needs to be adjusted one by one.

[0038] The second embodiment of the present invention is based on the first embodiment. In addition, an opening and closing driving mechanism 15 capable of driving multiple clamping mechanisms 14 to open and close synchronously is provided at the front end of the outer cover. The opening and closing driving mechanism 15 includes a driving gear ring 151 provided at the front side of the outer cover 13. A transmission gear 152 is provided at a position corresponding to the adjusting rod 143 and the driving gear ring 151. The driving gear ring 151 is meshed with the transmission gear 152. In this embodiment, the driving gear ring 151 can be rotated to drive multiple transmission gears 152 to rotate synchronously, thereby driving multiple clamping plates 144 to open or close, and installation and disassembly are convenient.

[0039] In a third embodiment of the present invention, a cooling fan 16 is provided on the heat sink 8, and a heat dissipation slot is provided on the base 1. The heat dissipated from the heat sink 8 can be quickly sent out of the outer cover 13 by the cooling fan 16.

[0040] The fourth embodiment of the present invention is based on the third embodiment. In addition, a water cooling mechanism 17 is provided in the base 1, and the water cooling mechanism 17 includes a water collecting tank 171 provided in the base 1, an impeller 172 is provided in the water collecting tank 171, a water inlet pipe 173 is provided on one side of the water collecting tank 171, and a water outlet pipe 174 is provided on the other side of the water collecting tank 171. A mounting seat 175 is provided in the lamp holder 4, and the light-emitting LED 6 is provided in the mounting seat 175. A cooling water tank is provided in the mounting seat 175, and the water inlet pipe 173 is connected to the base 1. The cooling water tank 171 is connected to one side of the cooling water tank, the water outlet pipe 174 is connected to the other side of the cooling water tank, the middle part of the water outlet pipe 174 is arranged to pass through the heat sink 8, a driving gear 177 is arranged outside the cooling fan 16, the driving gear 177 is connected to the rotating shaft of the cooling fan 16, a connecting rotating shaft 178 is arranged at the center of the impeller 172, the connecting rotating shaft 178 passes through the water collecting tank 171 and extends to the driving gear 177, and a transmission pinion 179 that can mesh with the driving gear 177 is arranged at the lower end of the connecting rotating shaft 178. In the present invention, the impeller can be turned intermittently or uninterruptedly during the rotation process of the cooling fan, so as to drive the coolant filled in the water collecting tank, the water outlet pipe, the water inlet pipe, and the cooling water tank to circulate, so as to take away the heat generated by the light-emitting LED, thereby playing a role of rapid heat dissipation, and having a good heat dissipation effect, thereby effectively ensuring the normal use of the light-emitting LED and effectively extending the service life.

[0041] A fifth embodiment of the present invention can be established on the basis of the third embodiment or the fourth embodiment, wherein a spiral air duct 18 is provided on the heat sink 8, and an air collecting cover 19 is provided on the air outlet end of the heat dissipation fan 16, and the air outlet end of the air collecting cover 19 is connected to the spiral air duct 18. In the present invention, a spiral air duct is provided on the heat sink, and an air collecting cover connected to the spiral air duct is provided on the air outlet end of the heat dissipation fan, so that the heat emitted by the heat sink can be effectively sent directly out of the outer cover, greatly improving the overall heat dissipation effect.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A focus-adjustable lighting fixture, comprising a base (1), characterized in that: A rotating bracket (2) is movably arranged on the base (1), a rotating drive mechanism (3) capable of driving the rotating bracket (2) to rotate is arranged in the base (1), a lamp head (4) is movably arranged on the rotating bracket (2), a flipping drive mechanism (5) capable of driving the lamp head (4) to flip and adjust an angle relative to the rotating bracket (2) is arranged on one side of the rotating bracket (2), a light-emitting LED (6) is arranged at the bottom of the lamp head (4), a lens (7) is movably arranged in the lamp head (4), a plurality of heat sinks (8) are arranged on the rear end of the lamp head (4), and a focus drive mechanism (9) capable of driving the lens (7) to move forward and backward relative to the light-emitting LED (6) to adjust the focal length is arranged on the heat sink (8).

2. The focus-adjustable lighting fixture according to claim 1, characterized in that: The rotary drive mechanism (3) comprises a rotary cylinder (31) movably arranged on a base (1); the rotary bracket (2) is connected to the rotary cylinder (31); a first right-angle motor (32) is arranged in the base (1); and the rotary cylinder (31) is connected to an output shaft of the first right-angle motor (32).

3. The focus-adjustable lighting fixture according to claim 1, characterized in that: The flip driving mechanism (5) comprises a second right-angle motor (51) arranged on one side of the rotating bracket (2); the lamp head (4) is movably arranged on the rotating bracket (2) via a rotating shaft (52); and the output shaft of the second right-angle motor (51) is connected to the rotating shaft (52).

4. The focus-adjustable lighting fixture according to claim 1, characterized in that: The focus drive mechanism (9) comprises a mounting plate (91) arranged on the heat sink (8), a rotating motor (92) being arranged on the mounting plate (91), a driving screw (93) being arranged on the output end of the rotating motor (92), an adjustment seat (94) being arranged inside the lamp holder (4), a positioning clamping ring (10) being arranged on the outer wall of the end of the lens (7), the positioning clamping ring (10) being pressed against the end of the adjustment seat (94), and a light-transmitting grid plate (11) being arranged outside the end of the lens (7). The light-transmitting grille plate (11) is connected to the adjustment seat (94) via a screw-on cover (12); a plurality of through holes are arranged at intervals on the lamp holder (4); a connecting column (95) is provided at a position corresponding to the through hole at the rear end of the adjustment seat (94); the connecting column (95) is arranged in the through hole; a connecting ring (96) is provided at the rear end of the connecting column (95); a screw sleeve is provided at a position corresponding to the driving screw (93); the screw sleeve is screwed onto the driving screw (93).

5. The focus-adjustable lighting fixture according to claim 1, characterized in that: An outer cover (13) is provided on the base (1); the rotating bracket (2), the rotating drive mechanism (3), the lamp head (4), the flipping drive mechanism (5), the lens (7), and the focusing drive mechanism (9) are all arranged inside the outer cover (13); and a plurality of clamping mechanisms (14) are evenly distributed along the circumferential direction on the front outer wall of the outer cover (13).

6. The focus-adjustable lighting fixture according to claim 5, characterized in that: An arc accommodating groove (141) and an accommodating long groove (142) arranged along the axial direction are arranged on the outer wall of the outer cover (13); the arc accommodating groove (141) and the long accommodating groove (142) are communicated with each other; an adjusting rod (143) is arranged in the long accommodating groove (142); a clamping plate (144) is arranged in the arc accommodating groove (141); and the clamping plate (144) is connected to the adjusting rod (143).

7. The focus-adjustable lighting fixture according to claim 6, characterized in that: An opening and closing drive mechanism (15) capable of driving a plurality of latching mechanisms (14) to open and close synchronously is provided at the front end of the outer cover, the opening and closing drive mechanism (15) comprising a drive gear ring (151) arranged at the front side of the outer cover (13), a transmission gear (152) being provided at positions corresponding to the adjustment rod (143) and the drive gear ring (151), the drive gear ring (151) being meshed with the transmission gear (152).

8. The focus-adjustable lighting fixture according to claim 1, characterized in that: A cooling fan (16) is provided on the heat sink (8), and a cooling slot is provided on the base (1).

9. The focus-adjustable lighting fixture according to claim 7, characterized in that: A water cooling mechanism (17) is provided in the base (1), the water cooling mechanism (17) comprising a water collecting tank (171) arranged in the base (1), an impeller (172) being provided in the water collecting tank (171), a water inlet pipe (173) being provided on one side of the water collecting tank (171), a water outlet pipe (174) being provided on the other side of the water collecting tank (171), a mounting seat (175) being provided in the lamp holder (4), the light-emitting LED (6) being arranged in the mounting seat (175), a cooling water tank being provided in the mounting seat (175), the water inlet pipe (173) being connected to one side of the cooling water tank, and the water outlet pipe (174) being connected to the other side of the cooling water tank. The pipe (174) is connected to the other side of the cooling water tank, the middle part of the water outlet pipe (174) is arranged to pass through the heat sink (8), a driving gear (177) is arranged outside the cooling fan (16), the driving gear (177) is connected to the rotating shaft of the cooling fan (16), a connecting rotating shaft (178) is arranged at the center of the impeller (172), the connecting rotating shaft (178) passes through the water collecting tank (171) and extends to the driving gear (177), and a transmission pinion (179) that can mesh with the driving gear (177) is arranged at the lower end of the connecting rotating shaft (178).

10. The focus-adjustable lighting fixture according to claim 7, characterized in that: A spiral air duct (18) is provided on the heat sink (8), and an air collecting cover (19) is provided on the air outlet end of the heat dissipation fan (16), wherein the air outlet end of the air collecting cover (19) is in communication with the spiral air duct (18).

Citation Information

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