Condensing lens structure

Abstract

The utility model relates to a condensing lens structure which is characterized in that the condensing lens structure comprises a lens body and a supporting frame, the supporting frame is connected to a lamp source lamp holder, the two ends of the lens body are provided with a light inlet hole and a light outlet face, and the side, close to the light outlet face, of the lens body is provided with an annular convex edge arranged around the periphery of the lens body; an annular convex edge is arranged on the supporting frame, a plurality of inserting rods are arranged on the annular convex edge and are uniformly distributed along the circumference, a lock seat corresponding to the inserting rods is arranged on the supporting frame, and the annular convex edge is locked by inserting or pulling out the inserting rods so as to be detachably connected with the supporting frame. The utility model has the following advantage and effect: the integral assembly and disassembly can be facilitated.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, specifically to a condenser lens structure. Background Technology

[0002] A lens is an optical device that can help improve the light output efficiency of a lamp source and change the light field distribution of the lamp source.

[0003] For example, Chinese patent document CN217057414U discloses a total internal reflection LED lens. The total internal reflection lens is a rotating body. The center of the light-incident surface of the total internal reflection lens is provided with a first groove for placing an LED. The inner end of the first groove extends inward to form a second groove. The apex of the second groove falls on the rotation axis of the total internal reflection lens. The center of the light-exit surface of the total internal reflection lens is provided with a third groove. The inner end of the third groove extends inward to form a fourth groove. The apex of the fourth groove falls on the rotation axis of the total internal reflection lens. The outer contour of the total internal reflection lens portion near the light-incident surface is conical, and the total internal reflection lens portion near the light-exit surface has an annular convex edge.

[0004] In the above technical solution, by setting the outer contour of the total internal reflection lens on the light-incident surface to a conical shape, the scattered light emitted by the light source can be refracted and all the light can be refracted to the direction of the light-out surface for focusing, so as to avoid the phenomenon of uneven light spot. Furthermore, the lens can be easily assembled and disassembled by the annular convex edge on the outer periphery of the lens and the connecting hole opened on the annular convex edge.

[0005] However, during actual installation, it was found that the connection between the lens and the lamp holder is mainly through a threaded connection. That is, a corresponding connection hole is opened on the annular convex edge, and the lens can be installed by screwing in a locking part that forms a threaded engagement with the connection hole. Therefore, when disassembling and assembling the lens, it is necessary to use appropriate tools to rotate the locking part multiple times, which makes the lens disassembly and assembly process somewhat inconvenient. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a condensing lens structure that can facilitate the overall assembly and disassembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a focusing lens structure, comprising a lens body and a support frame, wherein the support frame is connected to a lamp source holder, the lens body has light entrance holes and light exit surfaces at both ends, the lens body has an annular convex edge surrounding the outer periphery of the lens body on the side near the light exit surface, the annular convex edge is provided with a rod, the rods are multiple and evenly distributed around the circumference, the support frame is provided with a locking seat corresponding to the rod, the annular convex edge is locked by inserting or pulling out the rod, so as to form a detachable connection with the support frame.

[0008] The present invention is further configured such that: a first through hole is provided on the annular convex edge, the first through hole is multiple and evenly distributed around the circumference, a second through hole is provided on the support frame, the second through hole corresponds to the first through hole, and the insert rod and the lock seat are respectively embedded in the first through hole and the second through hole.

[0009] The present invention is further configured such that: the lock seat is provided with a lock groove, one end of the insert rod is used to insert into the lock groove as a locking end, the insert rod is provided with a slot, the locking end is provided with a top outlet communicating with the slot, the top outlet is provided with a steel ball, the slot is provided with a locking rod that can slide along the slot direction, and the locking rod slides to push the steel ball out from the top outlet, so that the steel ball is pressed against the inner wall of the lock groove to fix the insert rod.

[0010] The present invention is further configured such that: a wedge-shaped block is provided at one end of the locking rod near the locking groove, and a clearance groove is provided between the wedge block and the locking rod, the clearance groove being slidable by the locking rod to be opposite to the top outlet.

[0011] The present invention is further configured such that: the locking rod is located on the side away from the locking end as the pressing end, the inner wall of the insertion rod is provided with a protruding mounting step, a spring is provided between the mounting step and the pressing end, one end of the spring is fixed to the mounting step, and the other end is fixed to the pressing end, and the spring is used to drive the locking rod to reset.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By evenly arranging multiple insertion rods on the outer circumference of the annular convex edge, and correspondingly providing locking seats on the support frame that match the number and position of the insertion rods, the lens body and the support frame can be detachably connected by inserting or removing the insertion rods from the locking seats, thereby improving the convenience of lens body assembly and disassembly, and facilitating replacement or maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model (I);

[0015] Figure 2 This is a schematic diagram of the overall structure of the present utility model (II);

[0016] Figure 3 This is a schematic cross-sectional view of the present invention.

[0017] Figure 4 This is a partially enlarged structural diagram of part A of this utility model. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figures 1 to 4 As shown, this utility model discloses a focusing lens structure, including a lens body 1 and a support frame 2. The support frame 2 is fixed to the lamp holder by threads or clips and is used to support the lens body 1. The lens body 1 has a light inlet 101 and a light outlet 102 at both ends, respectively. The light inlet 101 faces the lamp source, and the light outlet 102 is used to focus and output light. The structure of the lens body 1 that focuses the light source and forms a light spot can be achieved using existing structures. On the side near the light outlet 102, an annular protrusion 3 is fixed to the outer circumference of the lens body 1. Multiple insertion rods 4 are evenly distributed on the outer circumference of the annular protrusion 3, for example, four insertion rods 4 arranged at 90° intervals. The support frame 2 is provided with locking seats 5 corresponding to the number and position of the insertion rods 4. By inserting or removing the insertion rods 4 from the locking seats 5, the lens body 1 and the support frame 2 can be detachably connected, improving the ease of disassembly and assembly of the lens body 1 and facilitating replacement or maintenance.

[0021] Specifically, the annular protruding edge 3 is provided with multiple through first recesses 31, which are evenly distributed around the circumference. The support frame 2 is provided with corresponding through second recesses 21. The root of the insert rod 4 is embedded in the first recesses 31 and fixed by an interference fit. The lock seat 5 is embedded in the second recesses 21 and fixed by an interference fit.

[0022] Additionally, the insert rod 4 has a longitudinal slot 41 inside, and one end of the insert rod 4 is a locking end, which can be inserted into the locking groove 51 in the lock seat 5. The locking end has a top outlet 42 communicating with the locking groove 51, and a steel ball 6 is placed in the top outlet 42. The locking rod 7 is slidably arranged in the slot 41. A wedge block 71 is fixed to one end of the locking rod 7 near the locking end, and a clearance groove 72 is formed between the wedge block 71 and the main body of the locking rod 7. When the locking rod 7 is pressed towards the locking end, the clearance groove 72 can be aligned with the top outlet 42, allowing the steel ball 6 to roll into the clearance groove 72, thus interrupting the pressure of the steel ball 6 on the inner wall of the locking groove 51. At this time, the insertion rod 4 can be pulled out from the locking seat 5, separating the annular protrusion 3 and the support frame 2, completing the disassembly of the lens body 1. Similarly, after the locking rod 7 is released, the locking rod 7 can be reset, allowing the clearance groove 72 to be offset from the top outlet 42. At this time, the wedge block 71 squeezes the steel ball 6, causing it to be pushed out from the top outlet 42 and pressed tightly against the inner wall of the locking groove 51. The insertion rod 4 is fixed by friction, completing the installation of the lens body 1.

[0023] The locking lever 7 is reset via a structure in which a protruding mounting step is provided on the inner wall of the insert lever 4, and a spring 8 is installed between the pressing end and the mounting step. One end of the spring 8 is fixed to the mounting step, and the other end is connected to the pressing end. Thus, when the locking lever 7 is released, the previously compressed spring 8 can push the locking lever 7 to reset. In summary, the lens body 1 can be quickly assembled and disassembled using the insert lever 4, which is faster and requires no tools compared to the traditional threaded connection method.

[0024] During assembly, align the insertion rod 4 of the lens body 1 with the locking seat 5 of the support frame 2, and simultaneously press the locking rod 7 axially to insert and lock the insertion rod 4. Then, release the locking rod 7 until a "click" sound is heard, indicating that the steel ball 6 has been firmly pressed against the inner wall of the locking groove 51, completing the fixation. During disassembly, press all the locking rods 7 simultaneously to allow the steel ball 6 to retract into the relief groove 72, after which the lens body 1 can be removed from the support frame 2. This structure achieves quick assembly and disassembly through mechanical interlocking. The annular protrusion 3 not only enhances the structural strength of the lens body 1 but also distributes the force on the insertion rod 4. The steel ball 6 tightening mechanism ensures a stable connection, preventing loosening due to vibration during use. Furthermore, the circumferentially distributed design of the insertion rod 4 and the locking seat 5 ensures even force distribution, making it suitable for lighting equipment requiring frequent lens replacement, such as stage lights and projector lights.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A condenser lens structure, characterized in that, The device includes a lens body and a support frame. The support frame is connected to a lamp holder. The lens body has light entrance holes and light exit surfaces at both ends. The lens body has an annular convex edge around the outer periphery of the lens body on the side near the light exit surface. The annular convex edge has multiple insertion rods evenly distributed around the circumference. The support frame has locking seats corresponding to the insertion rods. The annular convex edge is locked by inserting or pulling out the insertion rods to form a detachable connection with the support frame.

2. The condenser lens structure according to claim 1, characterized in that, The annular convex edge is provided with a through first recessed hole, and there are multiple first recessed holes evenly distributed around the circumference. The support frame is provided with a through second recessed hole, and the second recessed hole corresponds to the first recessed hole. The insertion rod and the lock seat are respectively embedded in the first recessed hole and the second recessed hole.

3. A condenser lens structure according to claim 2, characterized in that, The lock seat has a lock groove. One end of the insert rod is used to insert into the lock groove as a locking end. The insert rod has a slot. The locking end has a top outlet communicating with the slot. A steel ball is provided in the top outlet. A locking rod that can slide along the slot direction is provided in the slot. The locking rod slides to push the steel ball out from the top outlet, so that the steel ball is pressed against the inner wall of the lock groove to fix the insert rod.

4. A condenser lens structure according to claim 3, characterized in that, The locking rod has a wedge-shaped block at one end near the locking groove, and a clearance groove is provided between the wedge block and the locking rod. The clearance groove slides through the locking rod to be opposite to the top outlet.

5. A condenser lens structure according to claim 4, characterized in that, The locking rod is located on the side away from the locking end as the pressing end. The inner wall of the rod is provided with a protruding mounting step. A spring is provided between the mounting step and the pressing end. One end of the spring is fixed to the mounting step and the other end is fixed to the pressing end. The spring is used to drive the locking rod to reset.

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