CN214840411U

CN214840411U - Focusable spotlight

Info

Publication number: CN214840411U
Application number: CN202121722818.6U
Authority: CN
Inventors: 陈熙鹏; 何凯; 李富春
Original assignee: Beijing Lightstar Electronic Co ltd
Current assignee: Beijing Lightstar Electronic Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-11-23
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a can focus spotlight, can focus spotlight includes the lamp body, installs light source in the lamp body, install radiator on the light source can be installed around, with sliding focusing section of thick bamboo on the lamp body, install condensing lens on the focusing section of thick bamboo, be used for the drive driving piece and connection around the focusing section of thick bamboo with the driving medium of focusing section of thick bamboo, the air intake has been seted up down to the bottom surface of lamp body, the air outlet has been seted up to the top surface of lamp body, install radiator fan in the lamp body, radiator fan makes the air get into from air intake down to from last air outlet outflow, radiator and driving piece are located down on the wind path between air intake and the last air outlet. The utility model provides a focus-adjustable spotlight can guarantee that the spotlight has better radiating effect when realizing the focusing of spotlight.

Description

Focusable spotlight

Technical Field

The utility model relates to a spotlight technical field especially relates to a focus-adjustable spotlight.

Background

The spotlight is a professional lighting device used in places such as studios, theatres, theaters and multifunctional halls, and can focus light rays emitted by the LED lamp beads and irradiate the focused light rays at required positions. As a high-power lighting fixture, heat generated by the light-emitting device of the spotlight is collected in the lamp during long-term use, and if the heat cannot be timely and effectively dissipated, the temperature in the lamp is too high, so that the service life of the light-emitting device and other components in the lamp is influenced. Therefore, some existing spotlights have external heat dissipation fins, which are directly heat-exchanged with the outside air to dissipate heat, but the external heat dissipation fins are easy to damage, and the indoor air has poor flowability, which also affects the heat dissipation of the spotlights.

In addition, the positions of the led lamp beads in some spot lights cannot be adjusted, so that the degree of focusing light emitted by the led lamp beads cannot be adjusted, that is, the size and brightness of the illuminated light cannot be adjusted. In order to adjust the focal length of the spotlight, a technical solution for adjusting the focal length of the spotlight by adjusting the position of the light source has appeared in the prior art. For example, patent document CN211780547U discloses a spotlight capable of automatically adjusting the focal length, in which a lead screw is driven to rotate by driving a focusing motor, the lead screw drives a spotlight positioning plate to move back and forth, and the spotlight positioning plate drives a spotlight body to move back and forth, so as to adjust the distance between the spotlight body and a screw lens, thereby adjusting the focal length. However, although the above configuration can realize focus adjustment of the spotlight, it may adversely affect heat dissipation of the spotlight.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a focus-adjustable spotlight can guarantee that the spotlight has better radiating effect when realizing the focusing of spotlight.

In order to realize the above object, the utility model provides a can focus spotlight lamp, include the lamp body, install light source in the lamp body, install radiator on the light source can be installed with sliding around, focusing section of thick bamboo on the lamp body, install condensing lens on the focusing section of thick bamboo, be used for the drive driving piece and connection with sliding around the focusing section of thick bamboo the driving piece with the driving medium of focusing section of thick bamboo, the air intake has been seted up down to the bottom surface of lamp body, the air outlet has been seted up to the top surface of lamp body, install radiator fan in the lamp body, radiator fan makes the air get into from air intake down to from last air outlet outflow, radiator and driving piece are located on the wind path between air intake and the last air outlet down.

Preferably, the driving piece is a focusing motor, an output shaft of the focusing motor is connected with a focusing screw rod rotatably installed in the lamp body, a focusing nut is installed on the focusing screw rod, and the focusing nut is connected with the driving piece.

Preferably, a focusing knob is installed at the rear end of the focusing screw rod, and the focusing knob is located on the outer side of the rear end of the lamp body.

Preferably, the transmission part comprises a first guide rod which is arranged in the lamp body in a front-back sliding manner and a swing rod which is hinged in the lamp body through a hinge shaft, the first guide rod is connected with the focusing barrel, the upper end of the swing rod is in transmission connection with the first guide rod, the lower end of the swing rod is in transmission connection with the focusing nut, and the distance from the hinge shaft to the first guide rod is greater than the distance from the hinge shaft to the focusing nut.

Preferably, the transmission member further comprises a second guide rod which is arranged in the lamp body in a front-back sliding manner, the second guide rod is located below the first guide rod, the second guide rod is connected with the focusing nut, and the lower end of the oscillating rod is in transmission connection with the second guide rod.

Preferably, the upper end and the lower end of the swing rod are respectively provided with a first elongated hole and a second elongated hole, the first guide rod and the second guide rod are respectively and fixedly provided with a first transmission pin and a second transmission pin, the first transmission pin is slidably arranged in the first elongated hole, and the second transmission pin is slidably arranged in the second elongated hole.

Preferably, the heat sink is a heat pipe heat sink.

Preferably, a guide block is arranged on the focusing barrel, a guide groove is formed in the lamp body, the guide block can slide back and forth in the guide groove, and a scale used for marking the moving distance of the focusing barrel is arranged on the guide block.

Preferably, the lamp body is provided with a profile on the left side and a profile on the right side, the profile can be fixedly installed on a sliding seat on the lamp bow, the sliding seat can slide back and forth on the profile, and the sliding seat is provided with a locking wrench capable of locking the sliding seat on the profile.

Preferably, the upper end of the lamp body is fixedly provided with an upper handle, and the rear end of the lamp body is fixedly provided with a rear handle.

The utility model is different from the prior art in that the focus-adjustable spotlight provided by the utility model has the advantages that the upper air outlet is arranged on the top surface of the lamp body, the lower air inlet is arranged on the bottom surface of the lamp body, the wind path from bottom to top is formed in the lamp body through the cooling fan, and the radiator and the driving piece on the light source are arranged on the wind path, so that the heat generated by the radiator and the driving piece can be efficiently taken away; more importantly, the utility model discloses a focus focusing is realized to driving piece and driving medium drive installation condensing lens's focusing section of thick bamboo back-and-forth movement, and the light source can not remove at the focusing in-process, consequently can not change the wind path of setting for in the lamp body to make the adjustable focus spotlight all have good heat-sinking capability before the focusing, in the focusing and after the focusing. Therefore the utility model provides a focus-adjustable spotlight can guarantee that the spotlight has better radiating effect when realizing the focusing of spotlight.

Drawings

Fig. 1 is a schematic structural diagram of a focus-adjustable light-focusing lamp according to a preferred embodiment of the present invention;

FIG. 2 is a front view of the adjustable focus spotlight of FIG. 1;

FIG. 3 is a rear view of the variable focus spotlight of FIG. 1;

FIG. 4 is a top view of the variable focus spotlight of FIG. 1;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a schematic view of the structure of the driving member of the focus adjustable spotlight;

FIG. 8 is an enlarged view at C in FIG. 6;

description of reference numerals:

1-a lamp body; 2-a light source; 3-a radiator; 4-a focusing barrel; 5-a condenser lens; 6-a driving member; 7-lower air inlet; 8-an upper air outlet; 9-a heat dissipation fan; 10-a focusing lead screw; 11-a focusing nut; 12-a focus knob; 13-a first guide bar; 14-a jointed shaft; 15-oscillating bar; 16-a second guide bar; 17-a first elongated aperture; 18-a second elongated aperture; 19-a first drive pin; 20-a second drive pin; 21-a guide block; 22-scale bar; 23-section bar; 24-a slide mount; 25-locking spanner; 26-an upper handle; 27-a rear handle; 28-lamp bow.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments. The use and purpose of these exemplary embodiments are to illustrate the invention, not to limit the scope of the invention in any way, and not to limit the scope of the invention in any way.

In the present invention, some orientation words are defined, and in the case that no opposite explanation is made, the used orientation words such as "upper, lower, left and right" mean that the focus-adjustable spotlight provided by the present invention is defined under the normal use condition, and is consistent with the up-down, left-right direction shown in fig. 2. The term "inner and outer" refers to the inner and outer contours of the respective component parts. These directional terms are used for ease of understanding and are not intended to limit the scope of the present invention.

In the present invention, when a component is referred to as being "secured" to another component, it can be directly secured to the other component, or intervening components may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present.

Referring to fig. 1 and 6 as appropriate, the present invention provides a focus-adjustable spotlight comprising a lamp body 1, a light source 2 installed in the lamp body 1, a heat sink 3 installed on the light source 2, a focusing barrel 4 installed on the lamp body 1 in a front-back sliding manner, a focusing lens 5 installed on the focusing barrel 4, a driving member for driving the focusing barrel 4 in a front-back sliding manner, and a transmission member for connecting the driving member 6 and the focusing barrel 4.

The lamp body 1 is a housing for mounting various components of a spotlight and may be made of various suitable materials, such as plastic and aluminum alloy. The light source 2 can be an LED light source, a first-stage condensing lens can be arranged on the front side of the LED light source, and the first-stage condensing lens and the condensing lens 5 on the focusing barrel 4 on the front side can form two-stage condensing. The bottom surface of the lamp body 1 is provided with a lower air inlet 7, and a grid plate can be arranged on the lower air inlet 7. As shown in fig. 4, the top surface of the lamp body 1 is provided with an upper air outlet 8, and a baffle plate having a plurality of elongated holes may be installed on the upper air outlet 8. A heat dissipation fan 9 is installed in the lamp body 1, and the heat dissipation fan 9 can be disposed above the lower air inlet 7 and below the heat sink 3, so that the air generated by the heat dissipation fan 9 directly blows on the heat sink 3. The heat dissipation fan 9 makes air enter from the lower air inlet 7 and flow out from the upper air outlet 8, and the heat sink 3 and the driving member 6 are located on an air path between the lower air inlet 7 and the upper air outlet 8.

When the focus-adjustable spotlight provided by the above-mentioned basic embodiment is used, the heat dissipation fan 9 rotates to suck the outside air into the lamp body 1 from the lower air inlet 7, and the outside air flows on the air path formed between the lower air inlet 7 and the upper air outlet 8 in the lamp body 1, and the heat sink 3 and the driving member 6 mounted in the lamp body 1 are located in the air path, so that the heat sink 3 and the driving member 6 can be effectively cooled, and at the same time, the air flows upward after being heated, so that the air flow in the air path can flow more smoothly. When the focal length of the spotlight needs to be adjusted, the driving piece 6 drives the transmission piece to drive the focusing barrel 4 to move back and forth, and the condensing lens 5 arranged on the focusing barrel 4 moves along with the movement, so that the spotlight can be adjusted to the proper focal length. When the focus of the spotlight is adjusted, the position of the light source in the lamp body 1 is not changed, so that the heat dissipation air path in the lamp body 1 is not changed, and the spotlight can keep the best heat dissipation effect.

The utility model discloses in, the left surface and/or the right flank of lamp body 1 are the lid of installing through common connecting piece detachably such as bolts to when the wind path in the adjustable focus spotlight lamp body 1 of needs clearance and maintenance, can dismantle the lid, make the wind path can expose completely, thereby can make things convenient for the clearance and the maintenance of wind path.

The utility model discloses in, driving piece 6 is used for the drive transmission spare motion to slide around driving focusing section of thick bamboo 4, can adopt current various suitable driving pieces. Preferably, referring to fig. 8, the driving member 6 is a focus motor, an output shaft of the focus motor is connected to a focus screw 10 rotatably installed in the lamp body 1, two ends of the focus screw 10 may be installed on a bracket in the lamp body 1 through bearings, a focus nut 11 is installed on the focus screw 10, and the focus nut 11 is connected to the driving member. In this embodiment, when focusing is required, the focusing motor rotates to drive the focusing screw 10 connected with the output shaft of the focusing motor to rotate, the focusing nut 11 mounted on the focusing screw 10 is driven to move along the focusing screw 10, and the focusing nut 11 is connected with the transmission member, so that the focusing barrel 4 can be driven to move through the transmission member, the adjustment of the focal length is realized, and the light condensing and scattering effects of the spotlight are achieved.

On the basis of the above embodiment, in order to make focusing of the focus adjustable spotlight more convenient, it is further preferable that, as shown in fig. 8, a focusing knob 12 is mounted at a rear end of the focusing screw 10, and the focusing knob 12 is located outside a rear end of the lamp body 1. In the present embodiment, by providing the focus knob 12 at the rear end of the focus screw 10, when it is necessary to adjust the focus, the operator can manually rotate the focus knob 12 to adjust the focus.

When adjusting the focus, the focus cylinder 4 moves forward or backward on the lamp body 1, and in order to make the movement of the focus cylinder 4 smoother, in a preferred embodiment, as shown in fig. 1, a guide block 21 is provided on the focus cylinder 4, and the guide block 21 has a long bar shape. The lamp body 1 is provided with a guide groove, and the guide block 21 can slide back and forth in the guide groove. Preferably, the number of the guide blocks 21 is two, and the two guide blocks 21 are respectively arranged at the left and right sides of the focusing barrel 4, and each guide block 21 is slidably installed in one guide groove. The guide block 21 and the guide groove may be formed by a conventional dovetail guide structure or other common guide structures.

Further preferably, as shown in fig. 1, a scale 22 for indicating a moving distance of the focus cylinder 4 is provided on the guide block 21. By providing the scale 22 on the guide block 21, when the focus knob 12 is turned to adjust the focus, the operator can clearly know the moving distance of the focus cylinder 4, so that manual fine focusing can be achieved.

The utility model discloses in, the driving medium can adopt current various can transmission, for example the transfer line, specifically, can fix the one end of transfer line on focusing nut 11, and the other end is fixed on focusing section of thick bamboo 4.

In a preferred embodiment, as shown in fig. 7, the driving member includes a first guide bar 13 slidably installed in the lamp body 1 back and forth and a swing bar 15 hinged in the lamp body 1 through a hinge shaft 14. The first guide rod 13 can be installed in the lamp body 1 through a guide rod seat, the first guide rod 13 is connected with the focusing barrel 4, the upper end of the swing rod 15 is in transmission connection with the first guide rod 13, the lower end of the swing rod 15 is in transmission connection with the focusing nut 11, and the distance from the hinged shaft 14 to the first guide rod 13 is greater than the distance from the hinged shaft 14 to the focusing nut 11. In this embodiment, by disposing the swing link 15 and the hinge shaft 14 of the lamp body 1 close to the focus nut 11, when the focus nut 11 moves a small distance, the focus barrel 4 connected to the first guide bar 13 can move a large distance, so that the focus lead screw 10 having a short length can be used, which facilitates the placement of parts such as the focus motor.

Further preferably, as shown in fig. 7, the driving member further includes a second guide rod 16 slidably installed in the lamp body 1 back and forth, and the second guide rod 16 may also be installed in the lamp body 1 through a guide rod seat. The second guide rod 16 is positioned below the first guide rod 13, the second guide rod 16 is fixedly connected with the focusing nut 11, and the lower end of the oscillating bar 15 is in transmission connection with the second guide rod 16. In this embodiment, the second guide bar 16 is provided, so that the focus motor mounted on the focus screw 10 is closer to the middle of the air path, thereby better achieving heat dissipation of the focus motor.

As shown in fig. 7, the first guide rod 13 and the second guide rod 16 are parallel to each other, the upper end and the lower end of the swing rod 15 are respectively provided with a first elongated hole 17 and a second elongated hole 18, the first guide rod 13 and the second guide rod 16 are respectively and fixedly provided with a first transmission pin 19 and a second transmission pin 20, the first transmission pin 19 is slidably installed in the first elongated hole 17, and the second transmission pin 20 is slidably installed in the second elongated hole 18.

The utility model discloses in, radiator 3 can adopt the current various radiators that have the fin, the vertical setting of fin of radiator 3 for upward movement is followed to the air current space that can follow between the adjacent fin, thereby realizes the high-efficient heat dissipation of radiator 3. In the preferred embodiment of the present invention, as shown in fig. 5, the heat sink 3 is a heat pipe heat sink.

In order to facilitate the installation and fixation of the focus adjustable spotlight, preferably, as shown in fig. 2 and 3, the profiles 23 are fixedly installed on both left and right side surfaces of the lamp body 1, and the profiles 23 are aluminum alloy profiles, are in a long strip shape, and have sliding grooves thereon. The section bar 23 can be mounted on the sliding seat 24 fixed on the lamp bow 28, that is, one sliding seat 24 is fixedly mounted on each of the left and right free ends of the lamp bow 28, and the sliding seat 24 can be slidably mounted in the sliding groove of the section bar 23, so that the sliding seat 24 can slide back and forth on the section bar 23. A locking wrench 25 is arranged on the sliding seat 24 to lock the sliding seat 24 to the profile 23. The locking wrench 25 may adopt various existing structures capable of locking the sliding seat 24 with the profile 23, for example, a jackscrew is installed on the locking wrench 25, and when the locking wrench 25 is rotated, the jackscrew tightly pushes a sliding groove on the profile 23, so as to lock the sliding seat 24 on the profile 23. In the present embodiment, the focus-adjustable spotlight can be conveniently mounted on the lamp bow 28 by the sliding connection of the sliding seat 24 and the section bar 23 and the locking of the locking wrench 25, and the relative position of the spotlight and the lamp bow 28 can be conveniently adjusted.

As shown in fig. 1, in the preferred embodiment of the present invention, an upper handle 26 is fixedly installed at the upper end of the lamp body 1, and a rear handle 27 is fixedly installed at the rear end of the lamp body 1. Handle 26 is installed through the upper end at lamp body 1, can make things convenient for the staff to carry the spotlight, through handle 27 behind the rear end fixed mounting at lamp body 1, after installing the spotlight on bow 28, the staff can control the relative position of spotlight and bow 28 through back handle 27.

To sum up, the utility model provides a but focus regulation spotlight lamp compares with prior art, has following advantage: the vertical air path from bottom to top is arranged in the lamp body 1, so that the focus-adjustable light-focusing lamp has good heat dissipation capacity; the focus is adjusted by moving the focusing barrel, so that the air path in the lamp body 1 is kept unchanged before and after focusing, and the focus of the spotlight is adjusted with the best heat dissipation effect; a transmission structure is formed by the first guide rod 13, the second guide rod 16 and the swing rod 15, so that the overall structure of the spotlight is compact and the size is small while the heat dissipation effect of the focusing motor is ensured.

The sequence of the above embodiments is only for convenience of description, and does not represent the merits of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a focus-adjustable spotlight which characterized in that, include lamp body (1), install light source (2) in lamp body (1), install radiator (3) on light source (2), install with sliding around can focus barrel (4) on lamp body (1), install condenser lens (5) on the focus barrel (4), be used for the drive focus barrel (4) sliding around driving piece and connection driving piece (6) with the driving part of focus barrel (4), air intake (7) down have been seted up to the bottom surface of lamp body (1), upper air outlet (8) have been seted up to the top surface of lamp body (1), install radiator fan (9) in lamp body (1), radiator fan (9) make the air get into from air intake (7) down to from upper air outlet (8) outflow, radiator (3) and driving piece (6) are located wind path (7) and upper air outlet (8) between lower air intake (7) and the wind path (6) The above.

2. The adjustable focusing spotlight according to claim 1, wherein the driving member (6) is a focusing motor, an output shaft of the focusing motor is connected with a focusing screw (10) rotatably mounted in the lamp body (1), a focusing nut (11) is mounted on the focusing screw (10), and the focusing nut (11) is connected with the transmission member.

3. The adjustable focusing spotlight according to claim 2, wherein a focusing knob (12) is mounted at the rear end of the focusing screw (10), and the focusing knob (12) is located outside the rear end of the lamp body (1).

4. The adjustable focus light-focusing lamp according to claim 2 or 3, wherein the transmission member comprises a first guide rod (13) slidably installed in the lamp body (1) back and forth and a swing rod (15) hinged in the lamp body (1) through a hinge shaft (14), the first guide rod (13) is connected with the focusing barrel (4), the upper end of the swing rod (15) is in transmission connection with the first guide rod (13), the lower end of the swing rod (15) is in transmission connection with the focusing nut (11), and the distance from the hinge shaft (14) to the first guide rod (13) is greater than the distance from the hinge shaft (14) to the focusing nut (11).

5. The adjustable focus spotlight according to claim 4, wherein the transmission member further comprises a second guide rod (16) slidably mounted in the lamp body (1) in a front-back direction, the second guide rod (16) is located below the first guide rod (13), the second guide rod (16) is fixedly connected with the focus nut (11), and the lower end of the swing rod (15) is in transmission connection with the second guide rod (16).

6. The adjustable focusing spotlight according to claim 5, wherein the upper end and the lower end of the swing link (15) are respectively provided with a first elongated hole (17) and a second elongated hole (18), the first guide rod (13) and the second guide rod (16) are respectively and fixedly provided with a first transmission pin (19) and a second transmission pin (20), the first transmission pin (19) is slidably arranged in the first elongated hole (17), and the second transmission pin (20) is slidably arranged in the second elongated hole (18).

7. Focus-adjustable spotlight according to claim 4, characterized in that the heat sink (3) is a heat pipe heat sink.

8. The adjustable focusing spotlight according to claim 3, wherein the focusing barrel (4) is provided with a guide block (21), the lamp body (1) is provided with a guide groove, the guide block (21) can slide back and forth in the guide groove, and the guide block (21) is provided with a scale (22) for indicating the moving distance of the focusing barrel (4).

9. Focus-adjustable spotlight according to claim 1, characterized in that the profile (23) is fixedly mounted on both the left and right sides of the body (1), the profile (23) can be mounted on a sliding seat (24) fixed on the pantograph (28), the sliding seat (24) can slide back and forth on the profile (23), and the sliding seat (24) is provided with a locking wrench (25) capable of locking the sliding seat (24) on the profile (23).

10. A focusing light-focusing lamp as claimed in claim 9, characterized in that the upper end of the lamp body (1) is fixedly provided with an upper handle (26), and the rear end of the lamp body (1) is fixedly provided with a rear handle (27).