CN219417866U - Small hole diaphragm with adjustable size and height - Google Patents

Abstract

The utility model discloses a small-hole diaphragm with adjustable size and height, which comprises a mounting bottom plate and a diaphragm body, wherein both ends of the mounting bottom plate are provided with fixing plates, the inner sides of the fixing plates are provided with second sliding components, the inner sides of the second sliding components are provided with lifting plates in a sliding manner, both ends of the top of the lifting plates are provided with supporting plates, and the top of each supporting plate is provided with the diaphragm body. According to the utility model, the diaphragm body, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade are arranged, when the aperture inside the diaphragm body needs to be enlarged, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade can be taken out from the diaphragm body, and when the aperture inside the diaphragm body needs to be reduced, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade can be respectively arranged inside the diaphragm body, the aperture inside the diaphragm body can be adjusted, and the device is convenient to use.

Description

Small hole diaphragm with adjustable size and height

Technical Field

The utility model relates to the technical field of diaphragms, in particular to a small-hole diaphragm with adjustable size and height.

Background

The diaphragm refers to an entity in the optical system that acts to limit the beam, which may be the edge of a lens, a frame or a specially arranged screen with holes, the effect of which may be in two ways limiting the beam or limiting the size of the field of view (imaging range).

The aperture diaphragm that has down is after the installation, and its installation height is fixed, and in the use, can not adjust the height of diaphragm again according to the demand, and the adjustability is relatively poor, and its inside aperture size of current aperture diaphragm is inconvenient to adjust, uses comparatively inconvenient, consequently, the utility model provides a size height adjustable aperture diaphragm is used for solving above-mentioned problem.

Disclosure of Invention

The utility model aims to provide a small aperture diaphragm with adjustable size and height so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a small aperture diaphragm with adjustable size, includes mounting plate and diaphragm body, the fixed plate is all installed at mounting plate's both ends, and the inboard of fixed plate all installs second slip subassembly, the lifter plate is installed to the inner side slip of second slip subassembly, and the backup pad is all installed at the both ends at lifter plate top, the diaphragm body is installed at the top of backup pad, and the both ends of diaphragm body all are provided with the through-hole, first diaphragm blade is installed to the inboard of diaphragm body, and the both ends of first diaphragm blade all are provided with the second screw, the bearing is installed to the one end at mounting plate top, and the internally mounted of bearing has the threaded rod, threaded pipe is installed to the outside screw thread of threaded rod.

Preferably, the inner side of the first diaphragm blade is provided with a second diaphragm blade, both ends of the second diaphragm blade are provided with fourth screw holes, the inner side of the second diaphragm blade is provided with a third diaphragm blade, and both ends of the third diaphragm blade are provided with third screw holes.

Preferably, the U-shaped plate is installed at both ends of the diaphragm body, a first screw hole is formed in the U-shaped plate, and a fixing bolt is installed in the first screw hole in a threaded mode.

Preferably, a push-pull rod is hinged to the top of the threaded pipe, and one end, away from the threaded pipe, of the push-pull rod is hinged to the lifting plate.

Preferably, the first sliding component is installed at the top of the installation bottom plate, the guide sliding block is installed at the top of the first sliding component in a sliding mode, and one end, far away from the first sliding component, of the guide sliding block is connected with the threaded pipe.

Preferably, the two ends of the bottom of the mounting bottom plate are provided with L-shaped connecting plates, and the inside of each L-shaped connecting plate is provided with mounting holes.

Preferably, a handle is arranged at one end of the threaded rod far away from the bearing, and a sponge sleeve is arranged at the outer side of the handle.

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

1. the aperture diaphragm with adjustable size is provided with the diaphragm body, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade, when the aperture inside the diaphragm body needs to be enlarged, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade can be taken out from the diaphragm body, when the aperture inside the diaphragm body needs to be reduced, the first diaphragm blade, the second diaphragm blade and the third diaphragm blade can be respectively arranged inside the diaphragm body, the aperture inside the diaphragm body can be adjusted, and the device is convenient to use;

2. the size-adjustable small-hole diaphragm is provided with the U-shaped plate and the fixing bolt, after the aperture inside the diaphragm body is adjusted to a specified size, the fixing bolt can be rotated, so that the fixing bolt can move through threads, and the first diaphragm sheet, the second diaphragm sheet or the third diaphragm sheet can be firmly fixed inside the diaphragm body;

3. the bearing, the threaded rod, the push-pull rod, the lifting plate, the second sliding assembly and the threaded pipe are installed on the small-hole diaphragm with adjustable size and height, when the small-hole diaphragm is used, the threaded rod is rotated, the threaded pipe moves through threads, the push-pull rod can push or pull the lifting plate to lift, the height of the diaphragm body can be adjusted again, and the device is high in adjustability and high in applicability.

Drawings

FIG. 1 is a schematic view in front cross-section of the present utility model;

FIG. 2 is a schematic front view of the present utility model;

fig. 3 is an enlarged view of the structure of fig. 1 at a in accordance with the present utility model.

In the figure: 1. a fixing plate; 2. a bearing; 3. a mounting base plate; 4. a support plate; 5. a diaphragm body; 6. a U-shaped plate; 7. a first screw hole; 8. a second screw hole; 9. a first diaphragm sheet; 10. a second diaphragm sheet; 11. a third diaphragm sheet; 12. a third screw hole; 13. a fourth screw hole; 14. a through hole; 15. a fixing bolt; 16. a first slide assembly; 17. a threaded rod; 18. a push-pull rod; 19. a lifting plate; 20. a second slide assembly; 21. an L-shaped connecting plate; 22. a guide slide block; 23. a threaded pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an embodiment of the present utility model is provided: the utility model provides a small aperture diaphragm with adjustable size, including mounting plate 3 and diaphragm body 5, fixed plate 1 is all installed at the both ends of mounting plate 3, and the inboard of fixed plate 1 is all installed second slip subassembly 20, the inboard slidable mounting of second slip subassembly 20 has lifter plate 19, and backup pad 4 is all installed at the both ends at lifter plate 19 top, diaphragm body 5 is installed at the top of backup pad 4, and the both ends of diaphragm body 5 all are provided with through-hole 14, first diaphragm leaf 9 is installed to the inboard of diaphragm body 5, and the both ends of first diaphragm leaf 9 all are provided with second screw 8, bearing 2 is installed to the one end at mounting plate 3 top, and the internally mounted of bearing 2 has threaded rod 17, threaded pipe 23 is installed to the outside screw thread of threaded rod 17.

In this embodiment:

further, the second diaphragm blade 10 is installed on the inner side of the first diaphragm blade 9, the fourth screw holes 13 are formed in the two ends of the second diaphragm blade 10, the third diaphragm blade 11 is installed on the inner side of the second diaphragm blade 10, the third screw holes 12 are formed in the two ends of the third diaphragm blade 11, when the aperture inside the diaphragm body 5 needs to be enlarged, the first diaphragm blade 9, the second diaphragm blade 10 and the third diaphragm blade 11 can be taken out from the diaphragm body 5, when the aperture inside the diaphragm body 5 needs to be reduced, the first diaphragm blade 9, the second diaphragm blade 10 and the third diaphragm blade 11 can be installed inside the diaphragm body 5 respectively, the aperture inside the diaphragm body 5 can be adjusted, and the device is convenient to use.

Further, the U-shaped plate 6 is installed at both ends of the diaphragm body 5, the first screw holes 7 are formed in the U-shaped plate 6, the fixing bolts 15 are installed in the first screw holes 7 in a threaded mode, after the aperture inside the diaphragm body 5 is adjusted to a specified size, the fixing bolts 15 can be rotated, the fixing bolts 15 can move through threads, and then the first diaphragm sheet 9, the second diaphragm sheet 10 or the third diaphragm sheet 11 can be fixed firmly inside the diaphragm body 5.

Further, the top of the threaded pipe 23 is hinged with a push-pull rod 18, one end, far away from the threaded pipe 23, of the push-pull rod 18 is hinged with a lifting plate 19, the third screw hole 12 drives the push-pull rod 18 to move together, the push-pull rod 18 is forced to push or pull the lifting plate 19 to move, the lifting plate 19 drives the diaphragm body 5 to move through the supporting plate 4, and therefore the height of the diaphragm body 5 can be adjusted, and the diaphragm body 5 can be adjusted to a specified height for use.

Further, the first sliding component 16 is installed on the top of the mounting base plate 3, the guide sliding block 22 is installed on the top of the first sliding component 16 in a sliding manner, one end, away from the first sliding component 16, of the guide sliding block 22 is connected with the threaded pipe 23, the threaded pipe 23 is limited through the guide sliding block 22, and the threaded pipe 23 can be prevented from rotating along with the threaded rod 17.

Further, the two ends of the bottom of the installation bottom plate 3 are both provided with the L-shaped connection plates 21, and the inside of the L-shaped connection plates 21 is provided with installation holes, so that the installation device is convenient.

Further, a handle is installed at one end of the threaded rod 17 far away from the bearing 2, and a sponge sleeve is installed at the outer side of the handle, so that workers can conveniently rotate the threaded rod 17.

Working principle:

when the aperture size in the diaphragm body 5 is required to be adjusted, a worker can firstly install the first diaphragm sheet 9 on the inner side of the diaphragm body 5, and enable the second screw hole 8 on the first diaphragm sheet 9 to be opposite to the position of the through hole 14;

then the worker can install the second diaphragm sheet 10 on the inner side of the first diaphragm sheet 9, and make the fourth screw hole 13 on the second diaphragm sheet 10 face the position of the second screw hole 8;

meanwhile, a worker can install the third diaphragm sheet 11 on the inner side of the second diaphragm sheet 10, and enable the third screw hole 12 on the third diaphragm sheet 11 to be opposite to the position of the fourth screw hole 13;

the aperture size in the diaphragm body 5 can be adjusted by simultaneously installing the first diaphragm blade 9, the second diaphragm blade 10 and the third diaphragm blade 11 in the diaphragm body 5 and taking out the first diaphragm blade 9, the second diaphragm blade 10 or the third diaphragm blade 11 from the diaphragm body 5;

after the adjustment is finished, the fixing bolt 15 is rotated, so that the fixing bolt 15 moves in the first screw hole 7 through threads, and the fixing bolt 15 is screwed into the second screw hole 8, the third screw hole 12 and the fourth screw hole 13 at the same time, so that the first diaphragm sheet 9, the second diaphragm sheet 10 and the third diaphragm sheet 11 can be fixed in the diaphragm body 5;

in the use process, when the height of the diaphragm body 5 is required to be adjusted, a worker can rotate the threaded rod 17 clockwise or anticlockwise, the threaded pipe 23 on the outer side of the threaded rod 17 is limited by the guide sliding block 22, so that the threaded pipe 23 cannot rotate along with the threaded rod 17, and the threaded pipe 23 can only move on the outer side of the threaded rod 17 through threads;

at this time, the threaded tube 23 drives the guide slider 22 to slide on the first sliding component 16 along a straight line, and the third screw hole 12 drives the push-pull rod 18 to move together, so that the push-pull rod 18 is forced to push or pull the lifting plate 19 to move, the lifting plate 19 drives the diaphragm body 5 to move through the support plate 4, and therefore the height of the diaphragm body 5 can be adjusted, and the diaphragm body 5 can be adjusted to a specified height for use.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a big or small adjustable aperture diaphragm, includes mounting plate (3) and diaphragm body (5), its characterized in that: fixed plate (1) are all installed at both ends of mounting plate (3), and second slip subassembly (20) are all installed to the inboard of fixed plate (1), lifter plate (19) are installed to the inside slip of second slip subassembly (20), and backup pad (4) are all installed at the both ends at lifter plate (19) top, diaphragm body (5) are installed at the top of backup pad (4), and the both ends of diaphragm body (5) all are provided with through-hole (14), first diaphragm leaf (9) are installed to the inboard of diaphragm body (5), and the both ends of first diaphragm leaf (9) all are provided with second screw (8), bearing (2) are installed to the one end at mounting plate (3) top, and internally mounted of bearing (2) has threaded rod (17), screwed pipe (23) are installed to the outside screw thread of threaded rod (17).

2. The adjustable aperture stop of claim 1, wherein: the inner side of the first diaphragm blade (9) is provided with a second diaphragm blade (10), both ends of the second diaphragm blade (10) are provided with fourth screw holes (13), the inner side of the second diaphragm blade (10) is provided with a third diaphragm blade (11), and both ends of the third diaphragm blade (11) are provided with third screw holes (12).

3. The adjustable aperture stop of claim 1, wherein: u-shaped plates (6) are arranged at two ends of the diaphragm body (5), first screw holes (7) are formed in the U-shaped plates (6), and fixing bolts (15) are arranged in the first screw holes (7) in a threaded mode.

4. The adjustable aperture stop of claim 1, wherein: the top of the threaded pipe (23) is hinged with a push-pull rod (18), and one end of the push-pull rod (18) far away from the threaded pipe (23) is hinged with the lifting plate (19).

5. The adjustable aperture stop of claim 1, wherein: the top of mounting plate (3) is installed first slip subassembly (16), and the top slidable mounting of first slip subassembly (16) has direction slider (22), the one end that direction slider (22) kept away from first slip subassembly (16) is connected with screwed pipe (23).

6. The adjustable aperture stop of claim 1, wherein: the two ends of the bottom of the mounting bottom plate (3) are provided with L-shaped connecting plates (21), and mounting holes are formed in the L-shaped connecting plates (21).

7. The adjustable aperture stop of claim 1, wherein: the handle is installed to one end that threaded rod (17) kept away from bearing (2), and the sponge cover is installed in the outside of handle.