CN210109366U - Diaphragm adjusting mechanism - Google Patents
Diaphragm adjusting mechanism Download PDFInfo
- Publication number
- CN210109366U CN210109366U CN201921200596.4U CN201921200596U CN210109366U CN 210109366 U CN210109366 U CN 210109366U CN 201921200596 U CN201921200596 U CN 201921200596U CN 210109366 U CN210109366 U CN 210109366U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- groove
- cylindrical body
- ring
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Diaphragms For Cameras (AREA)
Abstract
The utility model discloses a diaphragm adjustment mechanism belongs to optical equipment technical field. The utility model provides a diaphragm adjusting mechanism, which comprises a diaphragm and a light tube, wherein the light tube comprises a first tubular body and a second tubular body connected with the first tubular body, a rotary through groove is arranged along the side wall of the second tubular body, and the rotary through groove is communicated with a mounting groove which runs through the side wall of the first tubular body; when installing, as long as push the diaphragm gently along the mounting groove in the light section of thick bamboo inner chamber, to handle joint and rotatory logical inslot, will adjust the circle again and install on the light section of thick bamboo, can realize adjustment mechanism's installation, when dismantling, lift off the regulation circle, just can directly take out the diaphragm from the light section of thick bamboo, simple and convenient, the adjusting device structure of having solved current diaphragm is complicated, it is convenient inadequately when dismantling the installation, influences the problem of availability factor.
Description
Technical Field
The utility model belongs to the technical field of optical equipment, specifically speaking relates to a diaphragm adjustment mechanism.
Background
A stop is an entity that acts to limit the light beam in an optical system. It may be the edge of a lens, a frame or a specially provided screen with holes. The function of the device can be divided into two aspects, namely limiting the light beam or limiting the size of the field-of-view imaging range. The diaphragm that restricts the most light beams in the optical system is called an aperture diaphragm, and the diaphragm that restricts the most field of view is called a field diaphragm. From the above, both the aperture stop and the field stop are physical objects. The general rule for determining the aperture stop of an optical system is that the aperture stop of the optical system is determined by the smallest opening angle of the stop or the image of the stop viewed from the object point. If the smallest opening angle is the image of a certain diaphragm, the diaphragm itself is the aperture diaphragm.
The existing diaphragm adjusting device generally comprises a main cylinder and a fixed cylinder, and has a complex structure and inconvenient disassembly and assembly. For example, a positioner of diaphragm adjustable ring for camera lens, including body, solid fixed ring, shock pad and spring ring, the body outside is equipped with solid fixed ring, gu fixed ring is connected in the body through pasting, gu the fixed ring inboard is equipped with the bayonet lock, the bayonet lock is connected in solid fixed ring through pasting, the bayonet lock right side is equipped with the fixed column, the fixed column is through welded connection bayonet lock, the fixed column inboard is equipped with the spring ring, the spring ring inboard is equipped with the support column, the support column is connected in the fixed column through pasting.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
Aiming at the problems that the existing adjusting device of the diaphragm is complex in structure and inconvenient to disassemble and install and affects the use efficiency, the utility model provides a diaphragm adjusting mechanism which comprises a diaphragm and a light cylinder, wherein the light cylinder comprises a first cylindrical body and a second cylindrical body connected with the first cylindrical body, a rotary through groove is arranged along the side wall of the second cylindrical body, a mounting groove is communicated on the rotary through groove, and the mounting groove penetrates through the side wall of the first cylindrical body; when installing, as long as push the diaphragm gently in the light section of thick bamboo inner chamber along the mounting groove, handle joint and rotatory logical inslot will adjust the circle and install on the light section of thick bamboo again, can realize adjustment mechanism's installation, when dismantling, lift off the regulation circle, just can directly take out the diaphragm from the light section of thick bamboo, and is simple and convenient.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A diaphragm adjustment mechanism comprising:
the diaphragm comprises a diaphragm body and a handle connected with the diaphragm body;
the polishing device comprises a polishing barrel, a polishing head and a polishing head, wherein the polishing barrel comprises a first barrel-shaped body and a second barrel-shaped body connected with one end of the first barrel-shaped body, a rotary through groove is formed in the side wall of the second barrel-shaped body, an installation groove is communicated with the rotary through groove, and the installation groove penetrates through the side wall of the first barrel-shaped body; installing the diaphragm in the light cylinder through the installation groove and the rotary through groove; the diaphragm body is arranged in the inner cavity of the second cylindrical body; the handle penetrates through the rotary through groove;
the adjusting ring is sleeved on the peripheral wall of the light cylinder and is connected with the light cylinder in a rotating mode, the adjusting ring is provided with a containing groove, the containing groove is connected with the handle in a clamping mode, the adjusting ring is rotated to adjust the size of the light ring in the diaphragm body.
Preferably, the outer peripheral wall of the first cylindrical body is provided with threads; and the outer diameter thereof is smaller than that of the second cylindrical body.
Preferably, the first cylindrical body and the second cylindrical body are integrally formed.
Preferably, establish including the cover the damping bearing of first tube-shape body, a terminal surface of damping bearing with the terminal surface that second tube-shape body is close to first tube-shape body supports and leans on, just the damping bearing periphery wall with the regulation circle is connected.
Preferably, the damping device further comprises a connecting retainer ring connected with the first cylindrical body, and one end face of the retainer ring is in bearing fit with one end of the damping shaft.
Preferably, the adjusting ring is fixedly connected with the damping bearing through a locking piece.
3. Advantageous effects
One or more technical solutions in the present application have at least one or more of the following technical effects:
(1) the utility model provides a diaphragm adjusting mechanism, which comprises a diaphragm and a light tube, wherein the light tube comprises a first tubular body and a second tubular body connected with the first tubular body, a rotary through groove is arranged along the side wall of the second tubular body, and the rotary through groove is communicated with a mounting groove which runs through the side wall of the first tubular body; when the adjusting mechanism is installed, the diaphragm can be directly taken out of the light cylinder by slightly pushing the diaphragm into the inner cavity of the light cylinder along the installation groove, clamping the handle in the rotary through groove and installing the adjusting ring on the light cylinder, and detaching the adjusting ring, so that the adjusting mechanism is simple and convenient;
(2) the utility model discloses an external diameter of first tube-shape body is less than the external diameter of second tube-shape body, and with second tube-shape body annular spacing arch be in annular spacing protruding the cover is equipped with damping bearing, a terminal surface of damping bearing with the terminal surface that second tube-shape body is close to first tube-shape body is supported and is leaned on, and its perisporium with the connection of regulating ring, under damping bearing's effect, dynamics when making the regulating ring mediate is unanimous, and the damping location is firm after the regulation, and the light ring size is difficult for receiving external force to change;
(3) the first cylindrical body and the second cylindrical body of the utility model are integrally formed, so that the overall strength of the mechanism is improved;
(4) the utility model discloses a be connected with retaining ring of first section of thick bamboo form body, a terminal surface of retaining ring with a bearing of damping axle supports and leans on the cooperation, prevents damping bearing axial displacement, improves the stability of mechanism.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a light tube according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a diaphragm adjusting mechanism according to an embodiment of the present invention;
fig. 3 is a sectional view of a diaphragm adjusting mechanism according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a diaphragm structure according to an embodiment of the present invention;
in the figure:
10. a light cylinder; 110. a first cylindrical body; 120. a second cylindrical body; 130. mounting grooves; 140. rotating the through groove;
20. a diaphragm; 210. a diaphragm body; 220. a handle;
30. an adjusting ring; 310. accommodating grooves; 320. a locking member;
40. a retainer ring;
50. and a damping bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will also be noted that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
It should also be noted that the terms "a," "an," "two," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a diaphragm adjusting mechanism, which includes a diaphragm 20, an optical cylinder 10, and an adjusting ring 30, wherein the diaphragm 20 includes a diaphragm body 210 and a handle 220 connected to the diaphragm body; the size of the aperture can be adjusted by toggling the handle 220, which is a structure of an existing diaphragm and is not described herein; as shown in fig. 1, the light tube 10 includes a first tubular body 110 and a second tubular body 120 connected to one end of the first tubular body 110, specifically, the first tubular body 110 and the second tubular body 120 both have a large empty cavity, the empty cavity is circular, and the inner diameters of the empty cavities are equal and are on the same central axis; in order to improve the overall strength of the mechanism, it is preferable that the first cylindrical body 110 and the second cylindrical body 120 are integrally formed; a rotary through groove 140 is formed along the side wall of the second cylindrical body 120, wherein the rotary through groove 140 is arc-shaped, is formed on the side wall of the second cylindrical body 120, and penetrates through the side wall; the radian of the handle is matched with the rotation angle of the handle 220 on the diaphragm body 210; further, the rotating through groove 140 is communicated with a mounting groove 130, the mounting groove 130 penetrates through the side wall of the first cylindrical body 110, penetrates through the side wall of the second cylindrical body 120 close to the first cylindrical body 110, and has one end communicated with the rotating through groove 140, for the purpose of facilitating the mounting or dismounting of the diaphragm body 210, preferably, the middle part of the rotating through groove 140 is perpendicular to one end of the mounting groove 130 to form a T shape; wherein the width of the mounting groove 130 and the rotating through groove 140 is adapted to the diameter of the handle 220.
Installing the diaphragm 20 in the light cylinder 10 through the installation groove 130 and the rotary through groove 140; the diaphragm body 210 is installed in the empty cavity of the second cylindrical body 120, and the handle 220 penetrates through the rotary through groove 140; further, adjust circle 30, the cover is established on the periphery wall of light section of thick bamboo 10, and with light section of thick bamboo 10 rotates and connects, holding tank 310 has been seted up on adjusting circle 30, holding tank 310 and handle 220 joint rotate adjust circle 30, drive handle 220 and rotate to the realization is adjusted diaphragm body 210 middle light circle size.
When the adjusting mechanism is installed, the diaphragm 20 is only required to be lightly pushed into the inner cavity of the light tube 10 along the installation groove 130, the handle 220 is clamped in the through groove 140 in a rotating mode, the adjusting ring 30 is installed on the light tube 10, the adjusting mechanism can be installed, when the adjusting mechanism is detached, the diaphragm 20 can be directly taken out of the light tube 10 after the adjusting ring 30 is detached, and the adjusting mechanism is simple and convenient.
Example 2
As shown in fig. 1 to 3, the diaphragm adjusting mechanism of the present embodiment is further modified from embodiment 1 as follows:
the outer peripheral wall of the first cylindrical body 110 is provided with threads; and the outer diameter of the second cylindrical body 120 is smaller than that of the second cylindrical body 120, and the second cylindrical body 120 and the outer diameter form an annular limiting bulge. Preferably, in order to make the dynamics unanimous when adjusting ring 30 and mediating annular spacing protruding cover be equipped with damping bearing 50, damping bearing 50 a terminal surface with second tube-shape body 120 leans on near the terminal surface 120a of first tube-shape body 110, just damping bearing 50's periphery wall with adjusting ring 30's connection, it is concrete, through retaining member 320 with damping bearing 50 is fixed, and retaining member 320 is the check pin three constant head tank has been seted up on adjusting ring 30, installs the check pin in the constant head tank, and damping bearing 50 is equipped with the screw hole, realizes adjusting ring 30 and damping bearing 50's fixed through screwing up the check pin. It should be understood by those skilled in the art that the connection implementation described herein also includes welding, interference connection, etc., and is not intended to limit the present invention. Under the action of the damping bearing 50, the adjusting ring 30 has consistent adjusting force, the damping positioning is stable after adjustment, the size of the aperture is not easy to change by external force, and the light inlet amount is stable.
In order to prevent the damping bearing 50 from moving axially and improve the stability of the mechanism, an end face of the retainer ring 40 is in abutting engagement with an end bearing of the damping bearing 50 in the threaded retainer ring 40 of the first cylindrical body 110.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present application.
Claims (6)
1. A diaphragm adjusting mechanism is characterized by comprising
The diaphragm comprises a diaphragm body and a handle connected with the diaphragm body;
the polishing device comprises a polishing barrel, a polishing head and a polishing head, wherein the polishing barrel comprises a first barrel-shaped body and a second barrel-shaped body connected with one end of the first barrel-shaped body, a rotary through groove is formed in the side wall of the second barrel-shaped body, an installation groove is communicated with the rotary through groove, and the installation groove penetrates through the side wall of the first barrel-shaped body; installing the diaphragm in the light cylinder through the installation groove and the rotary through groove; the diaphragm body is arranged in the inner cavity of the second cylindrical body; the handle penetrates through the rotary through groove; and
the adjusting ring is sleeved on the peripheral wall of the optical cylinder and is connected with the optical cylinder in a rotating mode, the accommodating groove is radially formed in the adjusting ring, the accommodating groove is connected with the handle in a clamped mode, the adjusting ring is rotated to adjust the size of the optical ring in the diaphragm body.
2. The diaphragm adjustment mechanism according to claim 1, wherein a thread is provided on an outer peripheral wall of the first cylindrical body; and the outer diameter thereof is smaller than that of the second cylindrical body.
3. The diaphragm adjustment mechanism of claim 1 or 2, wherein the first cylindrical body is integrally formed with the second cylindrical body.
4. The diaphragm adjusting mechanism of claim 3, further comprising a damping bearing sleeved on the first cylindrical body, wherein an end surface of the damping bearing abuts against an end surface of the second cylindrical body close to the first cylindrical body, and an outer peripheral wall of the damping bearing is connected with the adjusting ring.
5. The diaphragm adjustment mechanism of claim 4, further comprising a retainer ring connected to the first cylindrical body, wherein an end surface of the retainer ring is in abutting engagement with an end of the damping shaft.
6. The diaphragm adjustment mechanism of claim 4, wherein the adjustment ring is fixedly connected to the damping bearing by a retaining member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921200596.4U CN210109366U (en) | 2019-07-26 | 2019-07-26 | Diaphragm adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921200596.4U CN210109366U (en) | 2019-07-26 | 2019-07-26 | Diaphragm adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210109366U true CN210109366U (en) | 2020-02-21 |
Family
ID=69566955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921200596.4U Active CN210109366U (en) | 2019-07-26 | 2019-07-26 | Diaphragm adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210109366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281005A (en) * | 2021-05-13 | 2021-08-20 | 中国科学技术大学 | Device for preparing molecular beam source by laser |
-
2019
- 2019-07-26 CN CN201921200596.4U patent/CN210109366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281005A (en) * | 2021-05-13 | 2021-08-20 | 中国科学技术大学 | Device for preparing molecular beam source by laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210109366U (en) | Diaphragm adjusting mechanism | |
| CN110259834A (en) | A kind of metal bearing being easily installed | |
| CN207833082U (en) | A kind of waterproof focusing camera lens component and the photographic device with it | |
| CN207455302U (en) | A kind of Projecting Lamp of adjusting irradiation angle | |
| CN209945148U (en) | Sighting telescope with steering tube swinging control | |
| CN105812626A (en) | Rotatable camera device and object exhibition stand employing same | |
| CN209070174U (en) | A kind of reassembling type projection lens seat mechanism | |
| JP6500240B2 (en) | Lens barrel | |
| CN210707703U (en) | Hidden fixing device that AGV shell is connected | |
| CN110762434A (en) | Lamp body assembly capable of being matched with sleeve assembly and lamp | |
| CN207864958U (en) | A kind of rotating base of monitor | |
| CN202870369U (en) | Mechanism for adjusting lights on optical path | |
| RU2007100775A (en) | FIRE BARREL | |
| CN219642000U (en) | Focusing ring and lens focusing structure | |
| JP2020122893A (en) | Lens unit and imaging apparatus | |
| CN208188460U (en) | Automatic focusing structure and projection arrangement | |
| CN218547096U (en) | Universal stray light eliminating and anti-detection device | |
| CN112189166A (en) | Filter device and shooting equipment | |
| CN215109902U (en) | Linear actuator | |
| CN214470383U (en) | Sight removes leading reticle of leaf spring and turns to structure | |
| CN217007849U (en) | Telescope with visibility and focal length adjusting mechanism | |
| CN111290097A (en) | Mirror chamber structure capable of adjusting gradient | |
| CN212615759U (en) | Fastener for water conservancy and hydropower construction | |
| CN218298628U (en) | Connecting structure of lens assembly | |
| CN212647057U (en) | Optical fiber collimator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |