Light shield capable of being lifted and rotationally adjusted
The lens hood, which can be adjusted by lifting and rotating, uses the meshing connection of a worm, bevel gear and bevel rack, combined with telescopic magnets and telescopic strips, to solve the problem of the lens hood being unable to adjust its position, thereby achieving precise blocking of the strongest light end and optimization of the shooting angle.
Patent Information
- Application Number
- CN202421991576.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-16
AI Technical Summary
Existing lens hoods cannot adjust their position according to the intensity of light, resulting in an inability to effectively block the strongest light, while also blocking peripheral weak light, affecting the shooting angle and the light path of other equipment.
A lens hood that can be raised, lowered, and rotated is designed. The up and down movement and angle adjustment of the protective shell are achieved through the meshing connection of a worm, a bevel gear, and a bevel rack. The precise positioning and tightening of the soft leather case are achieved by using a combination of a telescopic magnetic block and a telescopic strip.
The position and angle of the lens hood can be flexibly adjusted, which can accurately block the strongest end of the light while avoiding blocking the surrounding weak light, thereby improving the photography quality and the utilization rate of the equipment's light path.
Smart Images
Figure CN223362469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of light shield equipment, in particular to a light shield which can be lifted, lowered and rotated. Background Art
[0002] A lens hood is an accessory used in photographic equipment. Its primary function is to block unwanted light from entering the lens, thereby reducing glare and ghosting, and improving image quality and contrast. The shape and size of the lens hood are usually designed according to the focal length and type of the lens.
[0003] Most of the existing lens hoods are integral and installed at the front end of the sleeve when needed. The lens hood is generally a rubber sleeve in the shape of a corrugated trumpet, with a large front end area. It cannot block the strongest light end and also blocks the surrounding weak light, interfering with the light path of other equipment and affecting the shooting angle. The lens hood itself is fixed and can only block the front end of the camera. The position of the lens hood cannot be adjusted according to the actual light intensity, so as to block a certain place without blocking the surrounding weak light. Utility Model Content
[0004] The purpose of the utility model is to solve the problem in the prior art that the front end area is large, the strongest light end cannot be shielded, and the peripheral weak light is also blocked, which interferes with the light path of other equipment and affects the shooting angle. The lens hood itself is fixedly installed and can only block the front end of the camera. The position of the lens hood cannot be adjusted according to the actual light intensity to block a certain place without blocking the peripheral weak light.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a light shield that can be raised, lowered and rotated, comprising: a sleeve body and a soft leather case, a protective shell is fixedly installed on one side of the soft leather case, the outer surface of the sleeve body is detachably connected with a groove block, a helical rack is fixedly installed inside the groove block, a helical gear is movably installed on the inner wall of the protective shell through a movable shaft, the helical rack is meshedly connected to one side of the helical gear, a worm is meshedly connected to one side of the helical gear, and a knob is movably installed on one side of the worm through the inner wall of the protective shell.
[0006] The technical effect of adopting the above further solution is: turning the knob drives the worm to rotate. Since the helical gear is meshingly connected with the worm and the helical rack, the rotation of the worm causes the helical gear to rotate inside the helical rack, thereby driving the protective shell to move up and down.
[0007] As a preferred embodiment, a flat plate is fixedly installed on one side of the protective shell, a movable groove is opened on one side of the flat plate, an inclined beam is fixedly installed on the other side of the flat plate, the other side of the inclined beam is fixedly connected to the outer surface of one side of the protective shell, and a slider is movably connected inside the movable groove.
[0008] The technical effect of adopting the above further solution is: the inclined beam is used to support the relationship between the protective shell and the flat plate, and the slider is moved to move inside the movable groove, so that the shading mechanism can be adjusted up and down.
[0009] As a preferred embodiment, two inclined beams are movably installed on both sides of the slider, wherein an S-pole telescopic magnet is fixedly installed on the other side of one of the inclined beams, and an N-pole slot is opened on the other side of the other inclined beam, and a telescopic strip is movably installed on the outer surface of one side of the two inclined beams.
[0010] The technical effect of adopting the above further scheme is: the inclined beam can be stretched to the appropriate distance according to the desired angle, the S-pole telescopic magnet is stretched to the inside of the N-pole slot to fix the inclined beam, and the telescopic bar can be pulled out of the inclined beam to the appropriate range by hand-pulling the handle.
[0011] As a preferred embodiment, a handle is fixedly installed on the outer surface of one of the telescopic strips, two fixed blocks are fixedly installed on the outer surface of the soft leather cover, a limit block is fixedly installed on one side of one of the fixed blocks, and a threaded rod is also included. The outer surface of the threaded rod is movably covered with a soft leather block, and a movable handle is movably installed on one side of the threaded rod. The threaded rod passes through the limit block and the soft leather block and is movably connected to the inside of one side of the movable handle.
[0012] The technical effect of adopting the above-mentioned further scheme is: after the adjustment is completed, the threaded rod can be driven to move inside the fixed block by rotating the movable handle, so that both sides of the soft leather cover are tightened, and the soft leather block is simultaneously moved toward the fixed block by rotating, so that the entire soft leather cover is completely tightened on the outer surface of the sleeve body, and the movable handle is pressed down to fix it on the outer surface of the sleeve body.
[0013] Compared with the prior art, the advantages and positive effects of the present invention are:
[0014] 1. When using the present invention, if the photographer feels that the surrounding light is too strong, the soft leather case and the slot block are installed on the outer surface of the sleeve body, and the knob is turned to drive the worm to rotate. Since the helical gear is meshed with the worm and the helical rack, the rotation of the worm causes the helical gear to rotate inside the helical rack, thereby driving the protective shell to move up and down. When the appropriate angle is adjusted, the movable handle is turned, and the rotation of the movable handle drives the threaded rod to move inside the fixed block, so that both sides of the soft leather case are tightened. At the same time, the soft leather block is moved toward the fixed block by rotation, so that the entire soft leather case is completely tightened on the outer surface of the sleeve body, and the movable handle is pressed down to fix it.
[0015] 2. The utility model adjusts the slider to slide inside the movable groove, pulls the inclined beam out from the inside of the slider, stretches the length to a suitable position compared with the strong light, stretches the S-pole telescopic magnetic block to the inside of the N-pole slot for fixation, and pulls the telescopic bar out to the shading position through the handle to complete the adjustment, which solves the problem that the sunshade itself is fixed and cannot adjust the angle and height, and cannot shade a certain place. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the main structure of a light shield that can be raised, lowered and rotated provided by the utility model;
[0017] Figure 2 This is a schematic diagram of the front view structure of a light shield that can be raised, lowered and rotated according to the present invention;
[0018] Figure 3 A schematic side view of the structure of a light shield that can be raised, lowered and rotated provided by the present invention;
[0019] Figure 4 The utility model provides a schematic cross-sectional structure diagram of the helical gear of a light shield capable of lifting, lowering and rotating adjustment.
[0020] Legend:
[0021] 1. Sleeve body; 2. Fixed block; 101. Soft leather cover; 102. Slot block; 103. Protective shell; 104. Worm; 105. Knob; 106. Bevel gear; 107. Flat plate; 108. Slider; 109. Bevel beam; 110. Telescopic bar; 111. Handle; 112. S-pole telescopic magnet; 113. N-pole notch; 114. Movable slot; 115. Bevel rack; 201. Threaded rod; 202. Soft leather block; 203. Movable handle; 204. Limit block. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figures 1 to 4 The utility model provides a technical solution: a light shield that can be lifted and rotated, comprising: a sleeve body 1 and a soft leather case 101, a protective shell 103 is fixedly installed on one side of the soft leather case 101, the outer surface of the sleeve body 1 is detachably connected with a slot block 102, the interior of the slot block 102 is fixedly installed with a bevel rack 115, the inner wall of the protective shell 103 is movably installed with a bevel gear 106 through a movable shaft, the bevel rack 115 is meshed with one side of the bevel gear 106, one side of the bevel gear 106 is meshed with a worm 104, one side of the worm 104 passes through the inner wall of the protective shell 103 and is movably installed with a knob 105, rotating the knob 105 drives the worm 104 to rotate, because the bevel gear 106 is meshed with the worm 104 and the bevel rack 115, the rotation of the worm 104 causes the bevel gear 106 to rotate inside the bevel rack 115, thereby driving the protective shell 103 to move up and down.
[0024] like Figures 1 to 4 As shown, a flat plate 107 is fixedly installed on one side of the protective shell 103, a movable groove 114 is opened on one side of the flat plate 107, and an inclined beam 109 is fixedly installed on the other side of the flat plate 107. The other side of the inclined beam 109 is fixedly connected to the outer surface of one side of the protective shell 103, and a slider 108 is movably connected inside the movable groove 114. The inclined beam 109 is used to support the relationship between the protective shell 103 and the flat plate 107. By moving the slider 108 to make it movable inside the movable groove 114, the shading mechanism can be adjusted up and down.
[0025] like Figures 1 to 4 As shown, two inclined beams 109 are movably installed on both sides of the slider 108, wherein an S-pole telescopic magnet 112 is fixedly installed on the other side of one of the inclined beams 109, wherein an N-pole slot 113 is provided on the other side of the other inclined beam 109, and a telescopic bar 110 is movably installed on the outer surface of one side of the two inclined beams 109. The inclined beam 109 can be stretched to a suitable distance according to the desired angle, and the S-pole telescopic magnet 112 can be stretched to the inside of the N-pole slot 113 to fix the inclined beam 109, and the telescopic bar 110 can be pulled out of the inclined beam 109 to a suitable range by pulling the handle 111.
[0026] like Figures 1 to 4As shown, a handle 111 is fixedly installed on the outer surface of one of the telescopic strips 110, and two fixed blocks 2 are fixedly installed on the outer surface of the soft leather case 101, and a limit block 204 is fixedly installed on one side of one of the fixed blocks 2. It also includes a threaded rod 201, and a soft leather block 202 is movably mounted on the outer surface of the threaded rod 201. A movable handle 203 is movably installed on one side of the threaded rod 201. The threaded rod 201 passes through the limit block 204 and the soft leather block 202 and is movably connected to the inside of one side of the movable handle 203. When the adjustment is completed, the movable handle 203 can be rotated to drive the threaded rod 201 to move inside the fixed block 2, so that both sides of the soft leather case 101 are tightened. At the same time, the soft leather block 202 is moved toward the fixed block 2 by rotation, so that the entire soft leather case 101 is completely tightened on the outer surface of the sleeve body 1, and the movable handle 203 is pressed down to fix it on the outer surface of the sleeve body 1.
[0027] Working principle: This device is a lens hood that can be raised, lowered and rotated. When in use, if the photographer feels that the surrounding light is too strong, the soft leather case 101 and the slot block 102 are installed on the outer surface of the sleeve body 1, and the knob 105 is turned to drive the worm 104 to rotate. Because the bevel gear 106 is meshed with the worm 104 and the bevel rack 115, the rotation of the worm 104 causes the bevel gear 106 to rotate inside the bevel rack 115, thereby driving the protective shell 103 to move up and down. When it is adjusted to the appropriate angle, the movable handle 203 is turned. The movable handle 203 rotates and drives the threaded rod 201 to move inside the fixed block 2, so that the two sides of the soft leather case 101 move forward. To tighten, the soft leather block 202 is simultaneously moved toward the fixed block 2 by rotation, so that the entire soft leather cover 101 is completely tightened on the outer surface of the sleeve body 1, and the movable handle 203 is pressed to fix it. Then, according to the position of the shading required, the slider 108 is adjusted to slide inside the movable groove 114, and the inclined beam 109 is pulled out from the inside of the slider 108. After stretching the length to the appropriate position for comparison with the strong light, the S-pole telescopic magnetic block 112 is stretched to the inside of the N-pole notch 113 for fixation, and the telescopic strip 110 is pulled out to the shading position through the handle 111 to complete the adjustment. This solves the problem that the sunshade itself is fixed and cannot adjust the angle and height, and cannot shade a certain place.
[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A light shield capable of being raised, lowered and rotated, comprising: A sleeve body (1) and a soft leather case (101), characterized in that: a protective shell (103) is fixedly installed on one side of the soft leather case (101), a slot block (102) is detachably connected to the outer surface of the sleeve body (1), a bevel rack (115) is fixedly installed inside the slot block (102), an inner wall of the protective shell (103) is movably installed with a bevel gear (106) through a movable shaft, the bevel rack (115) is meshedly connected to one side of the bevel gear (106), one side of the bevel gear (106) is meshedly connected to a worm (104), and one side of the worm (104) passes through the inner wall of the protective shell (103) and is movably installed with a knob (105).
2. The light shield capable of lifting, lowering and rotating according to claim 1, characterized in that: A flat plate (107) is fixedly mounted on one side of the protective shell (103), a movable groove (114) is provided on one side of the flat plate (107), and an inclined beam (109) is fixedly mounted on the other side of the flat plate (107).
3. The light shield capable of lifting, lowering and rotating according to claim 2, characterized in that: The other side of the inclined beam (109) is fixedly connected to the outer surface of one side of the protective shell (103), and the interior of the movable groove (114) is movably connected to a slider (108).
4. The light shield capable of lifting, lowering and rotating according to claim 3, characterized in that: Two inclined beams (109) are movably mounted on both sides of the slider (108), and an S-pole telescopic magnetic block (112) is fixedly mounted on the other side of one of the inclined beams (109).
5. The light shield capable of lifting, lowering and rotating according to claim 4, characterized in that: The other side of the other inclined beam (109) is provided with an N-pole notch (113), and the outer surfaces of one side of the two inclined beams (109) are both movably mounted with telescopic bars (110).
6. The light shield capable of lifting and rotating according to claim 5, characterized in that: A handle (111) is fixedly mounted on the outer surface of one of the telescopic strips (110), and two fixing blocks (2) are fixedly mounted on the outer surface of the soft leather case (101).
7. The light shield capable of lifting and rotating according to claim 6, characterized in that: A limiting block (204) is fixedly installed on one side of one of the fixing blocks (2), and the fixing block (2) further comprises a threaded rod (201), and a soft leather block (202) is movably sleeved on the outer surface of the threaded rod (201).
8. The light shield capable of lifting, lowering and rotating according to claim 7, characterized in that: A movable handle (203) is movably mounted on one side of the threaded rod (201), and the threaded rod (201) passes through the limiting block (204) and the soft leather block (202) and is movably connected to the inside of one side of the movable handle (203).