Focusing device of four-in-one cutting lamp

Abstract

The utility model provides a focusing device of a four-in-one cutting lamp, which comprises a lamp holder, lifting mechanisms, a lens fixing frame, a lens assembly and a buffer mechanism are arranged on the lamp holder, the lifting mechanisms are symmetrically arranged on the lamp holder, the lens fixing frame is arranged on the lifting mechanisms, and the lens assembly is arranged on the lens fixing frame. The focal length of the cutting lamp is adjusted by driving the lens fixing frame to move through the lifting mechanism, the lens assembly is arranged on the lens fixing frame, and the buffering mechanism is arranged at the top of the lifting mechanism and used for giving buffering force to the lens fixing frame when the lens fixing frame stops moving and limiting the moving range of the lens fixing frame. The utility model has a buffering effect, the lens assembly is driven by the lifting mechanism to focus, the precision is high and stable, the blockage is avoided, and the installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to stage lamps technical field, concretely relates to a kind of focusing device of four-in-one cutting lamp. BACKGROUND

[0002] Stage lamp is a kind of commonly used lamps and lanterns for background lighting in ballroom performance, gymnasium, high-rise building, entertainment place, in specific application scene, according to the need of light effect, the rotation of multiple directions and multiple angles can be realized.

[0003] At present, the focusing assembly on the market has complex structure, is driven by belt to adjust lens more, the focusing assembly of this kind of structure is inconvenient to install and focusing precision is not high, focusing assembly position is not centered, and there are problems such as jam when running. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of focusing device of four-in-one cutting lamp, with the effect of buffering, focusing is carried out by lifting mechanism to drive lens assembly, high and stable, there is no jam, installation is convenient.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of focusing device of four-in-one cutting lamp, including lamp holder, lifting mechanism, lens fixing frame, lens assembly and buffer mechanism are set on the lamp holder, the lifting mechanism is symmetrically set on lamp holder, the lens fixing frame is set on lifting mechanism, the focal length of cutting lamp is adjusted by lifting mechanism to drive lens fixing frame to move, the lens assembly is set on lens fixing frame, the buffer mechanism is set on the top of lifting mechanism, for giving lens fixing frame a buffer force when stopping moving and limiting the movement range of lens fixing frame.

[0007] As preferred, the lens fixing frame is provided with a plurality of through holes matched with the installation of lifting mechanism.

[0008] As preferred, the lifting mechanism includes mounting seat, stepper motor, screw rod seat, screw rod and guide rod, the mounting seat is set on lamp holder, the stepper motor is set on mounting seat, the screw rod seat is set on lens fixing frame, one end of the screw rod is connected with the output end of stepper motor, the other end is screwed with screw rod seat through lens fixing frame, the guide rod is set on mounting seat and passes through through hole, the lens fixing frame can be moved along screw rod to adjust the focal length of cutting lamp by stepper motor to drive screw rod.

[0009] As preferred, the buffer mechanism includes buffer member and limit sensor, the buffer member is sleeved on guide rod and connected with the top of mounting seat, the limit sensor is set on buffer member.

[0010] Preferably, the buffer is a spring or a rubber block.

[0011] Compared with the prior art, the utility model has the advantages that the symmetrical lifting mechanism is arranged to drive the lens assembly to adjust the focal length with high precision and stability, the screw rod is used for driving, the jamming problem does not occur, and the whole is convenient to install; in addition, the buffer mechanism is arranged, the moving range of the lens fixing frame is effectively limited, and the excessive adjustment and the buffer force for stopping the movement of the lens fixing frame are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0013] Figure 2 It is a partial enlarged schematic view of the utility model. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0015] It should be noted that when a component / part is referred to as "arranged on" another component / part, it can be directly arranged on the other component / part or there can be a middle component / part. When a component / part is referred to as "connected / coupled" to another component / part, it can be directly connected / coupled to the other component / part or there can be a middle component / part. The term "connected / coupled" used herein can include electrical and / or mechanical physical connection / coupling. The term "including / containing" used herein refers to the existence of features, steps or components / parts, but does not exclude the existence or addition of one or more other features, steps or components / parts. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0017] In addition, in the description of the present application, the terms "first", "second", etc. are only for the purpose of description and distinction of similar objects, and there is no sequence between them, and it cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0018] Please refer to Figure 1 and Figure 2As shown, a kind of focusing device of four-in-one cutting lamp, including lamp holder 1, lifting mechanism 2 is provided on lamp holder 1, lens holder 3, lens assembly 4 and buffer mechanism 5 are provided, lifting mechanism 2 is symmetrically provided on lamp holder 1, lens holder 3 is set on lifting mechanism 2, the focal length of cutting lamp is adjusted by lifting mechanism 2 to drive lens holder 3 to move, lens assembly 4 is set on lens holder 3, buffer mechanism 5 is set on the top of lifting mechanism 2, for giving lens holder 3 a buffer force when stopping moving and limiting the moving range of lens holder 3.

[0019] A plurality of through holes 31 are provided on lens holder 3 and matched with lifting mechanism.

[0020] Lifting mechanism 2 includes mounting seat 21, stepper motor 22, screw rod seat 23, screw rod 24 and guide rod 25, mounting seat 21 is provided on lamp holder 1, stepper motor 22 is provided on mounting seat 21, screw rod seat 23 is provided on lens holder 3, one end of screw rod 24 is connected with the output end of stepper motor 22, the other end is screwed with screw rod seat 23 through lens holder 3, guide rod 25 is provided on mounting seat 21 and passes through through hole 31, stepper motor 22 drives screw rod 24, so that lens holder 3 can move along screw rod 24 to adjust the focal length of cutting lamp.

[0021] Buffer mechanism 5 includes buffer piece 51 and limit sensor 52, buffer piece 51 is sleeved on guide rod 25 and connected with the top of mounting seat 21, limit sensor 52 is provided on buffer piece 51, when lens holder 3 contacts limit sensor 52, stepper motor 22 will stop rotating, to avoid excessive adjustment, and buffer piece 51 gives lens holder 3 a buffer force to stop moving and can also avoid limit sensor 52 from excessive impact force. Buffer piece 51 is spring or rubber block.

[0022] The utility model discloses a symmetric setting lifting mechanism 2 to realize high-precision stable driving lens assembly to adjust focal length, uses screw rod 24 to drive, will not appear the problem of jam, and overall installation is convenient, and still set in buffer mechanism 5, can effectively limit the moving range of lens holder 3, avoid excessive adjustment and give lens holder 3 a buffer force to stop moving.

[0023] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed in the utility model, according to the technical scheme of the utility model and the utility model concept, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A focusing device for a four-in-one cutting lamp comprising a lamp holder, characterized in that, The lamp holder is provided with a lifting mechanism, a lens fixing frame, a lens assembly and a buffer mechanism. The lifting mechanism is symmetrically arranged on the lamp holder. The lens fixing frame is arranged on the lifting mechanism. The lens fixing frame is moved by the lifting mechanism to adjust the focal length of the cutting lamp. The lens assembly is arranged on the lens fixing frame. The buffer mechanism is arranged on the top of the lifting mechanism to give a buffer force when the lens fixing frame stops moving and limit the moving range of the lens fixing frame.

2. The focusing device of the four-in-one cutting lamp according to claim 1, characterized in that, The lens fixing frame is provided with a plurality of through holes matched with the lifting mechanism.

3. The focus adjustment device of the four-in-one cutting lamp according to claim 2, characterized in that, The lifting mechanism comprises a mounting seat, a stepping motor, a lead screw seat, a lead screw and a guide rod. The mounting seat is arranged on the lamp holder. The stepping motor is arranged on the mounting seat. The lead screw seat is arranged on the lens fixing frame. One end of the lead screw is connected with the output end of the stepping motor. The other end of the lead screw is screwed with the lead screw seat through the lens fixing frame. The guide rod is arranged on the mounting seat and passes through the through hole. The lens fixing frame can move along the lead screw to adjust the focal length of the cutting lamp by driving the lead screw by the stepping motor.

4. The focusing device of the four-in-one cutting lamp according to claim 3, characterized in that, The buffer mechanism comprises a buffer member and a limit sensor. The buffer member is sleeved on the guide rod and connected with the top of the mounting seat. The limit sensor is arranged on the buffer member.

5. The focus adjustment device of the four-in-one cutting lamp according to claim 4, characterized in that, The buffer member is a spring or a rubber block.

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