CN212390145U

CN212390145U - LED lamp with adjustable focal length

Info

Publication number: CN212390145U
Application number: CN202020897732.6U
Authority: CN
Inventors: 赖诗林; 章国义
Original assignee: Xiamen Cuten Precision Accessories Industry Co ltd
Current assignee: Xiamen Cuten Precision Accessories Industry Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-22
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a focus adjustable LED lamp, which belongs to the technical field of LED lamps and comprises a lamp shell, an LED lamp body and a lamp shade, wherein an inner cavity is arranged inside the lamp shell, one end of the inner cavity is of a closed structure, the other end of the inner cavity is provided with an opening, a first rotating shaft and a second rotating shaft which are parallel to each other are symmetrically and rotatably connected on the inner wall between the inner cavity and the outer wall of the lamp shell, the middle parts of the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a convex lens and a concave lens, one end of the first rotating shaft and one end of the second rotating shaft extend to the outer wall of the lamp shell and are correspondingly provided with a first knob and a second knob, a containing groove for placing the convex lens and the concave lens is arranged between the inner cavity and the outer wall of the lamp shell, when the first knob or the second knob is rotated, the convex lens or the concave lens rotates to be parallel to, the utility model has the advantages of can disperse or focus and adjust the focus of LED lamp to light.

Description

LED lamp with adjustable focal length

Technical Field

The utility model relates to a LED lamp technical field specifically is a focus adjustable LED lamp.

Background

LEDs, light emitting diodes, are solid state semiconductor devices that convert electrical energy into visible light, and can convert electricity directly into light. The heart of the LED is a semiconductor wafer, one end of the wafer is attached to a support, the other end of the wafer is a cathode, the other end of the wafer is connected with the anode of a power supply, the whole wafer is packaged by epoxy resin, the LED is called as a fourth generation lighting source or a green light source, has the characteristics of energy conservation, environmental protection, long service life, small volume and the like, and can be widely applied to the fields of various indications, display, decoration, backlight sources, common lighting, urban night scenes and the like.

The distance between the lamp and the lens is generally fixed in the conventional LED lamp, and the focal length of the lamp cannot be adjusted randomly according to needs.

Therefore, the technical personnel in the related art improve this, for example, chinese patent publication No. CN208237623U proposes "a focus-adjustable LED lamp", which includes a lamp housing, the top of the lamp housing is provided with an LED lamp body in a penetrating manner, the left top and the bottom of the lamp housing are fixedly connected with a fixing plate, one side of the fixing plate opposite to the fixing plate is fixedly connected with a slide bar, a surface sleeve of the slide bar is provided with a movable box, the front side of the movable box is provided with a rotating rod in a penetrating manner, and the surface of the rotating rod is fixedly connected with a gear.

Nevertheless technical scheme in this application file still exists not enoughly, just focuses on light through convex lens like this utility model in LED lamp body, and application scope is less, can't be applied to the scene that needs diverge light.

Based on this, the utility model designs a focus adjustable LED lamp to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a focus adjustable LED lamp to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: an LED lamp with adjustable focal length comprises a lamp shell, an LED lamp body arranged at the top of the lamp shell and a lamp shade arranged at the bottom of the lamp shell, an inner cavity is arranged in the lamp shell, one end of the inner cavity is of a closed structure, the other end of the inner cavity is provided with an opening, a first rotating shaft and a second rotating shaft which are parallel to each other are symmetrically and rotatably connected on the inner wall between the inner cavity and the outer wall of the lamp shell, the middle parts of the first rotating shaft and the second rotating shaft are respectively fixedly connected with a convex lens and a concave lens, one ends of the first rotating shaft and the second rotating shaft extend to the outer wall of the lamp housing and are correspondingly provided with a first knob and a second knob, a containing groove for placing the convex lens and the concave lens is arranged between the inner cavity and the outer wall of the lamp shell, when the first knob or the second knob is rotated, the convex lens or the concave lens is rotated to be parallel or perpendicular to the length direction of the inner cavity, and a focusing structure is arranged between the LED lamp body and the lamp shell.

Preferably, the focusing structure includes lead screw, connecting plate and slide rail, the connecting plate is towards inner chamber open-ended one end and LED lamp body rigid coupling, the slide rail along inner chamber direction of height distribution is seted up to the inner chamber lateral wall symmetry, the both sides of connecting plate are provided with the lug with slide rail looks gomphosis, the connecting plate is equipped with the screw hole with lead screw matched with between two parties, the lead screw is moved along lamp body length direction by motor drive and drive connecting plate.

Preferably, both ends of the slide rail are provided with limiting parts, and the distance between the limiting parts is smaller than the length of the screw rod.

Preferably, the position that the inner chamber lateral wall meets with first pivot and second pivot place plane is equipped with first stopper and the second stopper that is distribution from top to bottom, the second stopper is located first stopper below, the inner chamber lateral wall is provided with the recess that supplies the second stopper to slide in second stopper position, coupling spring between second stopper and recess bottom, when convex lens or concave lens rotate to perpendicular with inner chamber length direction, convex lens or concave lens are located between first stopper and the second stopper and are in the butt state.

Preferably, the cross section of the second limiting block along the vertical direction is in a taper shape, and the tip of the second limiting block faces the direction far away from the side wall of the inner cavity.

Preferably, the surfaces of the first limiting block and the second limiting block are both provided with buffering cushions.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model comprises a lamp shell, an LED lamp body arranged at the top of the lamp shell and a lampshade arranged at the bottom of the lamp shell, wherein an inner cavity is arranged inside the lamp shell, one end of the inner cavity is of a closed structure, the other end of the inner cavity is provided with an opening, a first rotating shaft and a second rotating shaft which are parallel to each other are symmetrically and rotationally connected on the inner wall between the inner cavity and the outer wall of the lamp shell, the middle parts of the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a convex lens and a concave lens, one end of the first rotating shaft and one end of the second rotating shaft extend to the outer wall of the lamp shell and are correspondingly provided with a first knob and a second knob, a containing groove for placing the convex lens and the concave lens is arranged between the inner cavity and the outer wall of the lamp shell, when the first knob or the second knob is rotated, the convex lens or the concave lens, in use the utility model discloses the time, when the light that the LED lamp body sent for dispersing, rotate first knob, through first pivot with convex lens rotatory to parallel with inner chamber length direction, adjust through convex lens and focus on light, the same reason, when needs disperse light, earlier return convex lens, rotate the second knob again, it is rotatory to parallel with inner chamber length direction with concave lens through the second pivot, adjust through concave lens and disperse light, wherein the focusing structure between LED lamp body and the lamp body can be used to adjust the interval between LED lamp body and convex lens or the concave lens, the function to the focus adjustment of LED lamp has been realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of the present embodiment;

FIG. 2 is a schematic view illustrating a rotation state of the first rotating shaft according to the present embodiment;

FIG. 3 is a schematic view illustrating an operation state of the focusing structure according to the present embodiment;

FIG. 4 is a schematic cross-sectional view of the first rotating shaft and the second rotating shaft in this embodiment;

fig. 5 is a schematic structural diagram of the embodiment highlighting the first stopper and the second stopper.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a lamp housing; 2. an LED lamp body; 3. a focusing structure; 31. a screw rod; 32. a connecting plate; 33. a slide rail; 34. a motor; 4. an inner cavity; 5. a first rotating shaft; 6. a second rotating shaft; 7. a convex lens; 8. a concave lens; 9. a first knob; 10. a second knob; 11. a containing groove; 12. a lamp shade; 13. a limiting part; 14. a first stopper; 15. a second limiting block; 16. a groove; 17. a spring; 18. a cushion pad; 19. a bump; 20. a threaded hole; 21. a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an LED lamp with adjustable focal length comprises a lamp shell 1, an LED lamp body 2 arranged at the top of the lamp shell 1 and a lampshade 12 arranged at the bottom of the lamp shell 1, wherein an inner cavity 4 is arranged in the lamp shell 1, one end of the inner cavity 4 is of a closed structure, the other end of the inner cavity 4 is provided with an opening, a first rotating shaft 5 and a second rotating shaft 6 which are parallel to each other are symmetrically and rotatably connected on the inner wall between the inner cavity 4 and the outer wall of the lamp shell 1, the middle parts of the first rotating shaft 5 and the second rotating shaft 6 are fixedly connected with a connecting seat 21 respectively, a convex lens 7 and a concave lens 8 are sleeved on the connecting seat 21, one ends of the first rotating shaft 5 and the second rotating shaft 6 extend to the outer wall of the lamp shell 1 and are correspondingly provided with a first knob 9 and a second knob 10, an accommodating groove 11 for accommodating the convex lens 7 and the concave lens 8 is arranged between the inner cavity 4 and the outer wall of the lamp shell 1, when the first knob, a focusing structure 3 is arranged between the LED lamp body 2 and the lamp shell 1.

As shown in fig. 3, the focusing structure 3 includes a screw rod 31, a connecting plate 32 and a slide rail 33, the connecting plate 32 is fixedly connected to the LED lamp body 2 towards the opening end of the inner cavity 4, the slide rail 33 distributed along the height direction of the inner cavity 4 is symmetrically disposed on the side wall of the inner cavity 4, the two sides of the connecting plate 32 are provided with bumps 19 embedded with the slide rail 33, the connecting plate 32 is centrally provided with a threaded hole 20 matched with the screw rod 31, the screw rod 31 is driven by a motor 34 and drives the connecting plate 32 to move along the length direction of the lamp housing 1, when the LED lamp body 2 needs to be focused, the motor 34 drives and drives the connecting plate 32 to move along the length direction of the lamp housing 1, and the focusing on the LED lamp body 2 can be completed by shortening the distance between the LED lamp body 2 and the convex lens 7 or the concave.

Further, both ends of the slide rail 33 are provided with the limiting parts 13, the distance between the limiting parts 13 is smaller than the length of the screw rod 31, and the moving distance of the LED lamp body 2 can be effectively limited by arranging the limiting parts 13 at both ends of the slide rail 33, so that the problem of interference between the LED lamp body 2 and the convex lens 7 or the concave lens 8 is avoided.

As shown in fig. 5, a first stopper 14 and a second stopper 15 are disposed at a position where a side wall of the inner cavity 4 is connected to a plane where the first rotating shaft 5 and the second rotating shaft 6 are located, the second stopper 15 is located below the first stopper 14, a groove 16 for sliding the second stopper 15 is disposed at a position where the side wall of the inner cavity 4 is located at the second stopper 15, a spring 17 is connected between the second stopper 15 and a bottom of the groove 16, when the convex lens 7 or the concave lens 8 rotates to be perpendicular to a length direction of the inner cavity 4, the convex lens 7 or the concave lens 8 is located between the first stopper 14 and the second stopper 15 and is in an abutting state, when the convex lens 7 or the concave lens 8 rotates, the second stopper 15 is instantly compressed into the groove 16 by the spring 17, when the convex lens 7 or the concave lens 8 rotates past the second stopper 15, the second stopper 15 is ejected under the action of the spring 17, so that the convex lens 7 or the concave lens 8 is located between the first stopper 14 and the second stopper 15, the rotation angle of the convex lens 7 or the concave lens 8 is limited, the convex lens 7 or the concave lens 8 can be prevented from sliding downwards in the using process, and the adjustment precision of the focal length of the LED lamp body 2 is improved.

Further, second stopper 15 is the taper shape along vertical direction's cross-section, and its most advanced orientation is kept away from the direction of the 4 lateral walls of inner chamber, when convex lens 7 or concave lens 8 are rotating second stopper 15, through setting up the taper shape on second stopper 15, plays the transition effect, makes convex lens 7 or concave lens 8 more smooth and easy when rotating.

Further, the surfaces of the first limiting block 14 and the second limiting block 15 are provided with buffering cushions 18, and the convex lens 7 or the concave lens 8 can play a role in buffering in the abutting process with the first limiting block 14 or the second limiting block 15 by arranging the buffering cushions 18, so that the service lives of the convex lens 7 and the concave lens 8 are prolonged.

One specific application of this embodiment is:

when the utility model is used, when the light emitted by the LED lamp body 2 is divergent, the first knob 9 is rotated, the convex lens 7 is rotated to be parallel to the length direction of the inner cavity 4 through the first rotating shaft 5, the light is focused through the adjustment of the convex lens 7, similarly, when the light needs to be divergent, the convex lens 7 is reset, the second knob 10 is rotated, the concave lens 8 is rotated to be parallel to the length direction of the inner cavity 4 through the second rotating shaft 6, the light is divergent through the adjustment of the concave lens 8, when the convex lens 7 or the concave lens 8 is rotated to be vertical to the length direction of the inner cavity 4, the rotation angle of the convex lens 7 or the concave lens 8 is limited through the first stopper 14 and the second stopper 15 to prevent the convex lens 7 or the concave lens 8 from sliding down, when the focal length of the LED lamp body 2 needs to be adjusted, the lead screw 31 is driven through the motor 34 and drives the LED lamp body 2 to move on the slide rail 33 along the length direction of the lamp body 1, therefore, the distance between the LED lamp body 2 and the convex lens 7 or the concave lens 8 is shortened, the focusing on the LED lamp body 2 is completed, the moving distance of the LED lamp body 2 can be effectively limited by the limiting parts 13 at the two ends of the sliding rail 33, and the problem of interference between the LED lamp body 2 and the convex lens 7 or the concave lens 8 is avoided.

In conclusion, through convex lens 7, concave lens 8 rotate connect in first pivot 5, second pivot 6 and LED lamp body 2 and lamp body 1 between focusing structure 3, can play and diverge or focus through transform convex lens 7 or concave lens 8 to the light, and carry out the effect of focus adjustment to LED lamp body 2.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a focus adjustable LED lamp, includes lamp body (1), sets up in LED lamp body (2) at lamp body (1) top and sets up in lamp shade (12) of lamp body (1) bottom, its characterized in that: an inner cavity (4) is arranged inside the lamp shell (1), one end of the inner cavity (4) is of a closed structure, the other end of the inner cavity (4) is provided with an opening, a first rotating shaft (5) and a second rotating shaft (6) which are parallel to each other are symmetrically and rotatably connected to the inner wall between the inner cavity (4) and the outer wall of the lamp shell (1), the middle parts of the first rotating shaft (5) and the second rotating shaft (6) are fixedly connected with a convex lens (7) and a concave lens (8) respectively, one ends of the first rotating shaft (5) and the second rotating shaft (6) extend to the outer wall of the lamp shell (1) and are correspondingly provided with a first knob (9) and a second knob (10), a containing groove (11) for containing the convex lens (7) and the concave lens (8) is formed between the inner cavity (4) and the outer wall of the lamp shell (1), and when the first knob (9) or the second knob (10) is rotated, the convex lens (7) or the concave lens (8) is rotated to be, a focusing structure (3) is arranged between the LED lamp body (2) and the lamp shell (1).

2. The LED lamp with adjustable focal length of claim 1, wherein: focusing structure (3) include lead screw (31), connecting plate (32) and slide rail (33), connecting plate (32) are towards inner chamber (4) open-ended one end and LED lamp body (2) rigid coupling, slide rail (33) along inner chamber (4) direction of height distribution are seted up to inner chamber (4) lateral wall symmetry, the both sides of connecting plate (32) are provided with lug (19) with slide rail (33) looks gomphosis, connecting plate (32) are equipped with screw hole (20) with lead screw (31) matched with between two parties, lead screw (31) are driven by motor (34) and are driven connecting plate (32) and remove along lamp body (1) length direction.

3. The LED lamp with adjustable focal length of claim 2, wherein: both ends of slide rail (33) all are provided with spacing portion (13), interval between spacing portion (13) is less than lead screw (31) length.

4. The LED lamp with adjustable focal length of claim 1, wherein: inner chamber (4) lateral wall and first pivot (5) and second pivot (6) place plane meet the position be equipped with first stopper (14) and second stopper (15) that are distribution from top to bottom, second stopper (15) are located first stopper (14) below, inner chamber (4) lateral wall is provided with recess (16) that supply second stopper (15) to slide in second stopper (15) position, connecting spring (17) between second stopper (15) and recess (16) bottom, when convex lens (7) or concave lens (8) rotate to perpendicular with inner chamber (4) length direction, convex lens (7) or concave lens (8) are located between first stopper (14) and second stopper (15) and are in the butt state.

5. The LED lamp with adjustable focal length of claim 4, wherein: the section of the second limiting block (15) along the vertical direction is in a taper shape, and the tip of the second limiting block faces the direction far away from the side wall of the inner cavity (4).

6. The LED lamp with adjustable focal length of claim 4, wherein: the surfaces of the first limiting block (14) and the second limiting block (15) are provided with buffering soft cushions (18).