Novel manual focusing mechanism and stage lamp thereof

Abstract

The novel manual focusing mechanism comprises a lamp shell, a first guide groove is formed in the inner side wall of the lamp shell, a sliding piece is arranged in the lamp shell in a sliding mode, and the sliding piece comprises a bearing part used for fixing a lens assembly and a first matching part connected with one end of the bearing part; the first matching part is in sliding fit with the first guide groove, an opening groove formed in the length direction of the first guide groove is formed in the bottom of the first guide groove, a driving piece is arranged in the opening groove in a penetrating mode, and the driving piece is connected with the first matching part after penetrating through the opening groove. The mechanical complexity and the maintenance cost are reduced; in addition, the first guide groove not only can provide more stable guide, reduce swing and deviation in movement and improve the positioning precision and the movement stability of the machine, but also can better adapt to different working conditions and load changes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stage light illumination, and in particular to a novel manual focusing mechanism and a stage light thereof. BACKGROUND

[0002] A manual focusing mechanism is disclosed in Chinese utility model patent (publication number CN205480814U), and the disclosure in the specification is as follows: 1. A first shaft fixing block is fixed on a first support frame, a second shaft fixing block is fixed on a second support frame, one end of a focusing shaft is fixed on the first shaft fixing block, and the other end of the focusing shaft is fixed on the second shaft fixing block. It can be seen that the assembly structure of the focusing mechanism is complex, and the assembly takes a lot of time. 2. The plastic shaft sleeve is a self-lubricating plastic shaft sleeve, an axially extending through groove is arranged on the inner wall of the plastic shaft sleeve, the plastic shaft sleeve is embedded in a focusing sliding block, the plastic shaft sleeve is sleeved on the focusing shaft, and the plastic shaft sleeve and the focusing shaft are in gap cooperation. In order to ensure the effective mechanical movement between the parts, the lubricity of the plastic shaft sleeve needs to be regularly maintained, which increases the maintenance cost. Based on the above defects, a novel manual focusing mechanism is developed. SUMMARY

[0003] The present application provides a novel manual focusing mechanism and a stage light thereof, which has the advantages of simple structure design, low maintenance cost, stable operation and the like.

[0004] To solve the above technical problems, the present application provides the following technical solutions:

[0005] A novel manual focusing mechanism comprises a lamp shell, a first guide groove is formed in the inner side wall of the lamp shell, a sliding member is slidably arranged in the lamp shell, the sliding member comprises a bearing part for fixing a lens assembly and a first matching part connected to one end of the bearing part, the first matching part and the first guide groove are in sliding cooperation, an opening groove is formed in the length direction of the first guide groove at the bottom of the first guide groove, a driving member is arranged in the opening groove, and the driving member is connected to the first matching part after passing through the opening groove.

[0006] Further limited, the other end of the bearing part is connected with a second matching part, the inner side wall of the lamp shell is further provided with a second guide groove opposite to the first guide groove, and the bearing part is in sliding cooperation with the second guide groove through the second matching part.

[0007] Further limited, the first matching part is formed by bending one end of the bearing part, and the first matching part is in the form of a vertical block.

[0008] Further limited, the second matching part is formed by protruding outward from the other end of the bearing part, and the second matching part is in the form of a horizontal block.

[0009] Further limited, the bearing part and the first matching part are fixedly connected with a connecting plate.

[0010] Further limited, the inner side wall of the lamp shell is provided with a light shielding plate located in the first guide groove to shield the opening groove, the bearing part is provided with an avoiding hole for the light shielding plate to pass through, the light shielding plate is fixedly connected with the inner side wall of the lamp shell after passing through the avoiding hole, and at this time, the first matching part is located between the light shielding plate and the first guide groove.

[0011] Further limited, the light shielding plate comprises a plate main body part, first folding parts are formed by folding the two side parts of the plate main body part towards each other, second folding parts are formed by folding the outer side parts of the two first folding parts away from each other, fixed columns are fixedly arranged in the first guide groove and located at both ends of the length direction of the opening groove, and the light shielding plate is fixedly connected with the fixed columns through the plate main body part, at this time, the first folding parts and the second folding parts can shield the opening groove.

[0012] Further limited, the driving part comprises a knob part with a diameter larger than the width of the opening groove and a screw part fixedly connected with the knob part, and the screw part of the knob part is threadedly connected with the first matching part after passing through the opening groove.

[0013] Further limited, the first matching part is fixedly connected with a gasket adapted to the first guide groove on both sides.

[0014] The stage lamp comprises the focusing mechanism.

[0015] After the above technical scheme is adopted, the present application has at least the following beneficial effects: when the focal length is adjusted, the driving part is manually driven to move, so as to drive the first matching part to move along the first guide groove, and then drive the lens assembly on the bearing part, finally achieving the effect of lens focusing; after the focal length is adjusted, the knob driving part can be locked; therefore, the design of the first guide groove of the present application is generally simpler, and the installation and maintenance are more convenient, and the mechanical complexity and maintenance cost are reduced; in addition, the first guide groove not only can provide more stable guidance, reduce the swing and deviation in movement, improve the positioning accuracy and movement stability of the mechanism, but also can better adapt to different working conditions and load changes. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural view of the focusing mechanism;

[0017] Figure 2 is an exploded view of the focusing mechanism;

[0018] Figure 3 is an installation view of the light shielding plate;

[0019] Figure 4 is a front view of the focusing mechanism;

[0020] Figure 5 is a sectional view of A-A of Figure 4

[0021] Figure 6 is a sectional view of B-B of Figure 4

[0022] Figure 7 is a structural view of the sliding member. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0024] As shown in Figs. 1 to 4, a new type of manual focusing mechanism and a stage lamp using the same, comprising a cylindrical lamp shell 1, a first guide groove 11 is formed on the inner side wall of the lamp shell 1, a sliding member 2 is slidingly arranged in the lamp shell 1, the sliding member 2 comprises a bearing part 21 for fixing a lens assembly 3 and a first matching part 22 connected with one end of the bearing part 21, the first matching part 22 and the first guide groove 11 are slidingly matched, an opening groove 12 is formed along the length direction of the first guide groove 11 at the bottom of the first guide groove 11, a driving member 4 is arranged in the opening groove 12, and the driving member 4 is threadedly connected with the first matching part 22 after passing through the opening groove 12. Figure 1 Figure 2 Figure 4 Figure 5 When adjusting the focal length, the driving member 4 is manually driven to move, so as to drive the first matching part 22 to move along the first guide groove 11, and then drive the lens assembly 3 on the bearing part 21, finally achieve the effect of lens focusing; after adjusting the focal length, the driving member 4 can be locked by rotating the knob; compared with the prior art, the first guide groove 11 is usually designed more simply, and the installation and maintenance are more convenient, which reduces the complexity of the mechanism and the maintenance cost; in addition, the first guide groove 11 not only can provide more stable guidance, reduce the swing and deviation in movement, improve the positioning accuracy and movement stability of the mechanism, but also can better adapt to different working conditions and load changes.

[0025] As shown in Figs. 1 to 4, a new type of manual focusing mechanism and a stage lamp using the same, comprising a cylindrical lamp shell 1, a first guide groove 11 is formed on the inner side wall of the lamp shell 1, a sliding member 2 is slidingly arranged in the lamp shell 1, the sliding member 2 comprises a bearing part 21 for fixing a lens assembly 3 and a first matching part 22 connected with one end of the bearing part 21, the first matching part 22 and the first guide groove 11 are slidingly matched, an opening groove 12 is formed along the length direction of the first guide groove 11 at the bottom of the first guide groove 11, a driving member 4 is arranged in the opening groove 12, and the driving member 4 is threadedly connected with the first matching part 22 after passing through the opening groove 12. Figure 5 Figure 7 ​​​​​​As shown, the other end of the bearing part 21 is connected to the second mating part 23. The inner side wall of the lamp housing 1 is also provided with a second guide groove 13 opposite to the first guide groove 11. The bearing part 21 slides with the second guide groove 13 through the second mating part 23. The addition of the second mating part 23 on the basis of the first mating part 22 can further improve the movement stability of the sliding member 2 and avoid deviation.

[0026] As attached Figure 7 As shown, the second mating part 23 is formed by protruding outward from the other end of the supporting part 21, and the second mating part 23 is horizontally block-shaped. The first mating part 22 is formed by bending one end of the supporting part 21, and the first mating part 22 is vertically block-shaped. Both the first mating part 22 and the second mating part 23 are block-shaped, which helps to increase the compatibility with the first guide groove 11 and the second guide groove 13 and provide mating accuracy.

[0027] As attached Figure 7 As shown, two connecting plates 24 are fixedly connected between the bearing part 21 and the first mating part 22. One side of the connecting plate 24 is connected to the side end of the first mating part 22, and the other side is connected to the end of the bearing part 21, thereby improving the rigidity of the driving component 4.

[0028] As attached Figure 3 As shown, the inner wall of the lamp housing 1 is provided with a light-blocking plate 5 located in the first guide groove 11 to block the opening groove 12. The light-blocking plate 5 is mainly used to prevent the light source inside the lamp housing 1 from leaking from the opening groove 12, causing light loss.

[0029] As attached Figure 3 As shown, the supporting part 21 has a clearance hole 210 for the light-blocking plate 5 to pass through. After the light-blocking plate 5 passes through the clearance hole 210, it is fixedly connected to the inner side wall of the lamp housing 1. At this time, the first mating part 22 is located between the light-blocking plate 5 and the first guide groove 11, making the structure more compact.

[0030] As attached Figure 3 and attached Figure 6 As shown, the light-blocking plate 5 includes a plate body portion 51. The two sides of the plate body portion 51 are folded towards each other to form a first folded portion 52. The outer sides of the two first folded portions 52 are folded away from each other to form a second folded portion 53. A fixing post 14 is fixedly provided in the first guide groove 11 at both ends along the length direction of the opening groove 12. The light-blocking plate 5 is fixedly connected to the fixing post 14 through the plate body portion 51. At this time, both the first folded portion 52 and the second folded portion 53 can block the opening groove 12. The first folded portion 52 and the second folded portion 53 can not only effectively enhance the rigidity of the light-blocking plate 5, but also effectively prevent light from leaking from the side.

[0031] As attachedFigure 1 and attached Figure 2 As shown in the attached drawings, the driving member 4 includes a knob part 41 whose diameter is larger than the width of the opening slot 12 and a screw part 42 fixedly connected with the knob part 41, the screw part 42 of the knob part 41 is screwed with the first matching part 22 after passing through the opening slot 12, after the driving member is adjusted to the appropriate position, the knob part 41 is twisted to abut against the edge of the opening slot 12, thereby completing the locking after focusing.

[0032] As shown in the attached drawings, the driving member 4 includes a knob part 41 whose diameter is larger than the width of the opening slot 12 and a screw part 42 fixedly connected with the knob part 41, the screw part 42 of the knob part 41 is screwed with the first matching part 22 after passing through the opening slot 12, after the driving member is adjusted to the appropriate position, the knob part 41 is twisted to abut against the edge of the opening slot 12, thereby completing the locking after focusing. Figure 2 Figure 6 As shown in the attached drawings, the driving member 4 includes a knob part 41 whose diameter is larger than the width of the opening slot 12 and a screw part 42 fixedly connected with the knob part 41, the screw part 42 of the knob part 41 is screwed with the first matching part 22 after passing through the opening slot 12, after the driving member is adjusted to the appropriate position, the knob part 41 is twisted to abut against the edge of the opening slot 12, thereby completing the locking after focusing.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various equivalents, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.​

Claims

1. A new type of manual focusing mechanism comprising a lamp housing (1), characterized in that, The first guide groove (11) is arranged on the inner wall of the lamp shell (1), the sliding member (2) is slidably arranged in the lamp shell (1), the sliding member (2) comprises a bearing part (21) for fixing the lens assembly (3) and a first matching part (22) connected with one end of the bearing part (21), the first matching part (22) is slidably matched with the first guide groove (11), the bottom of the first guide groove (11) is provided with an opening groove (12) arranged along the length direction of the first guide groove (11), the driving member (4) is arranged in the opening groove (12), and the driving member (4) is connected with the first matching part (22) after penetrating through the opening groove (12).

2. The focusing mechanism of claim 1, wherein The other end of the bearing part (21) is connected with a second matching part (23), the inner wall of the lamp shell (1) is further provided with a second guide groove (13) opposite to the first guide groove (11), and the bearing part (21) is slidably matched with the second guide groove (13) through the second matching part (23).

3. The focusing mechanism of claim 1, wherein, The first matching part (22) is formed by bending one end of the bearing part (21), and the first matching part (22) is in the form of a vertical block.

4. The focusing mechanism of claim 2, wherein, The second matching part (23) is formed by protruding outward from the other end of the bearing part (21), and the second matching part (23) is in the form of a horizontal block.

5. The focusing mechanism of claim 1, wherein, The connecting plate (24) is fixedly connected between the bearing part (21) and the first matching part (22).

6. The focusing mechanism of claim 1, wherein, The inner wall of the lamp shell (1) is provided with a light shielding plate (5) arranged in the first guide groove (11) to shield the opening groove (12), the bearing part (21) is provided with an avoiding hole (210) through which the light shielding plate (5) penetrates, and the inner wall of the lamp shell (1) is fixedly connected with the light shielding plate (5) after the light shielding plate (5) penetrates through the avoiding hole (210), at this time, the first matching part (22) is located between the light shielding plate (5) and the first guide groove (11).

7. The focusing mechanism of claim 6, wherein, The light shielding plate (5) comprises a plate main body part (51), first folding parts (52) are formed by folding the two side parts of the plate main body part (51) towards each other, second folding parts (53) are formed by folding the outer side parts of the two first folding parts (52) away from each other, fixed columns (14) are fixedly arranged in the first guide groove (11) and located at the length direction ends of the opening groove (12), the plate main body part (51) is fixedly connected with the fixed columns (14), at this time, the first folding parts (52) and the second folding parts (53) can shield the opening groove (12).

8. The focusing mechanism according to any one of claims 1 to 7, wherein The driving member (4) comprises a knob part (41) with a diameter larger than the width of the opening groove (12) and a screw part (42) fixedly connected with the knob part (41), and the screw part (42) of the knob part (41) is threadedly connected with the first matching part (22) after penetrating through the opening groove (12).

9. The focusing mechanism according to any one of claims 1 to 7, wherein The first matching part (22) is fixedly connected with gaskets (6) matched with the first guide groove (11) on the front and back sides.

10. A stage light, characterized by The focusing mechanism comprises any one of claims 1 to 9.

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