CN112558377B

CN112558377B - Aperture and shutter

Info

Publication number: CN112558377B
Application number: CN202011547662.2A
Authority: CN
Inventors: 钟木生; ***; 赵少伟
Original assignee: Dongguan Vide Technology Co ltd
Current assignee: Dongguan Vide Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2024-05-17
Anticipated expiration: 2040-12-24
Also published as: CN112558377A

Abstract

The invention discloses an aperture and shutter, which comprises a fixed base, a fixed cover plate and a blade driving assembly, wherein a movable blade assembly in a blade accommodating cavity of the fixed base comprises an upper movable blade and a lower movable blade; the blade driving assembly comprises a magnet rocking handle mechanism, a winding assembly and a coil winding wound around the periphery of the winding assembly, the winding assembly comprises a winding main body and a winding upper cover, the magnet rocking handle mechanism comprises a movable rocking handle, a movable magnet and a rotary shaft, the movable rocking handle comprises a rocking handle mounting part embedded and clamped in a magnet through hole of the movable magnet, the rocking handle mounting part is sleeved around the rotary shaft, a first driving swing arm and a second driving swing arm are arranged at the upper end part of the rocking handle mounting part, the first driving swing arm drives an upper movable blade, and the second driving swing arm drives a lower movable blade; the winding main body is provided with a limit magnet at the periphery of the movable magnet, and the winding is provided with a damping magnet. Through the structural design, the invention has the functions of the aperture and the shutter, and has novel design, simple structure and multiple functions.

Description

Aperture and shutter

Technical Field

The invention relates to the technical field of cameras, in particular to an aperture and shutter.

Background

Cameras are widely applied to daily life of people, and various camera products exist in the prior art, such as cameras applied to security monitoring, cameras applied to automobile driving records and the like.

It should be noted that, for the camera, an aperture structure and a shutter structure are generally provided, and the automatic aperture structure, the precise aperture structure and the shutter structure of the existing camera are mutually independent components; the camera with the aperture structure and the shutter structure independent of each other has the defects of complex structure and high cost.

Disclosure of Invention

The invention aims to provide a diaphragm and shutter which has diaphragm and shutter functions at the same time, and has novel design, simple structure and multiple functions.

In order to achieve the above object, the present invention is achieved by the following technical scheme.

The aperture and shutter comprises a fixed base and a fixed cover plate, wherein a blade accommodating cavity with an upward opening is formed in the fixed base, the fixed cover plate is covered at the opening of the upper end of the blade accommodating cavity of the fixed base, a base light-passing hole which penetrates through the fixed base completely up and down and is communicated with the blade accommodating cavity is formed in the middle of the fixed base, and a cover plate light-passing hole which penetrates through the fixed cover plate completely up and down and is arranged in an up-down alignment manner with the base light-passing hole is formed in the middle of the fixed cover plate; the movable blade assembly comprises an upper movable blade and a lower movable blade, wherein the upper movable blade and the lower movable blade are horizontally and transversely arranged respectively, an upper blade driving part is arranged at the right end part of the upper movable blade, and an upper blade driving hole which completely penetrates up and down is formed in the upper blade driving part; the right end part of the lower movable blade is provided with a lower blade driving part, and the lower blade driving part is provided with a lower blade driving hole which completely penetrates up and down;

The aperture and shutter also comprises a blade driving assembly, wherein the blade driving assembly comprises a magnet rocking handle mechanism, a winding assembly and a coil winding wound around the periphery of the winding assembly, the winding assembly comprises a winding main body and a winding upper cover arranged at the upper end part of the winding main body, the winding main body and the winding upper cover are respectively hard plastic parts, the winding main body is provided with a main body winding groove, the winding upper cover is provided with an upper cover winding groove, the coil winding is positioned in the main body winding groove and the upper cover winding groove, and a magnet accommodating cavity is formed between the winding main body and the winding upper cover; the right end part of the fixed base is provided with a fixed installation hole site which is downwards opened and communicated with the blade accommodating cavity, and the upper end part of the winding upper cover is embedded and clamped and fixed on the fixed installation hole site of the fixed base;

The magnet rocking handle mechanism comprises a movable rocking handle, a movable magnet and a rotary shaft, wherein the movable magnet is in a cylindrical shape and is vertically arranged, and the movable magnet is embedded in the magnet accommodating cavity; the rotary shaft is positioned in the magnet accommodating cavity, the upper end part of the rotary shaft is connected with the winding upper cover, and the lower end part of the rotary shaft is connected with the winding main body; the core part of the movable magnet is provided with a magnet through hole which penetrates through the movable magnet from top to bottom, the movable rocking handle comprises a rocking handle installation part which is embedded and clamped in the magnet through hole of the movable magnet, the rocking handle installation part is sleeved on the periphery of the rotary shaft, the upper end part of the rocking handle installation part is provided with a first driving rocking arm and a second driving rocking arm, and the first driving rocking arm and the second driving rocking arm are respectively integrated with the rocking handle installation part; a first clearance hole corresponding to the first driving swing arm and a second clearance hole corresponding to the second driving swing arm are formed in the middle of the winding upper cover and the winding main body, the first driving swing arm penetrates through the first clearance hole, the second driving swing arm penetrates through the second clearance hole, the upper end part of the first driving swing arm stretches into the blade accommodating cavity, the upper end part of the first driving swing arm is inserted into the upper blade driving hole of the upper movable blade, the upper end part of the second driving swing arm stretches into the blade accommodating cavity, and the upper end part of the second driving swing arm is inserted into the lower blade driving hole of the lower movable blade;

the winding main body is provided with limiting magnets which are in strip shapes and are vertically arranged at the periphery of the movable magnets, and damping magnets which are in ring shapes and are coaxially arranged with the movable magnets are wound and assembled by the wire.

The upper end part of the first driving swing arm is provided with a first driving shaft part protruding upwards and extending, the first driving shaft part is embedded in an upper blade driving hole of the upper movable blade, and the first driving shaft part and the first driving swing arm are of an integrated structure;

The upper end part of the second driving swing arm is provided with a second driving shaft part which protrudes upwards and extends, the second driving shaft part is embedded in a lower blade driving hole of the lower movable blade, and the second driving shaft part and the second driving swing arm are of an integrated structure.

The upper end part of the first driving shaft part is provided with a first anti-drop hook which horizontally protrudes outwards, and the first anti-drop hook is positioned at the upper end side of the upper movable blade;

the upper end of the second driving shaft part is provided with a second anti-drop hook protruding outwards horizontally, and the second anti-drop hook is positioned on the upper end side of the lower movable blade.

The winding main body is provided with a magnet clamping groove corresponding to the limit magnet, and the limit magnet is clamped in the magnet clamping groove of the winding main body.

Wherein, the periphery of wire winding main part cover dress is tightly fixed and is the round iron of ring shape.

The coil body is provided with a metal PIN needle which protrudes downwards and extends, and the outgoing line of the coil winding is welded with the metal PIN needle;

the aperture and shutter also comprises a circuit board, wherein the metal PIN needle is welded with the circuit board and is electrically connected with an internal circuit of the circuit board.

The winding upper cover is provided with an upper cover positioning hole which is downwards opened corresponding to the rotating shaft, the winding main body is provided with a main body positioning hole corresponding to the rotating shaft at the bottom of the magnet accommodating cavity, the upper end part of the rotating shaft is embedded in the upper cover positioning hole, and the lower end part of the rotating shaft is embedded in the main body positioning hole; the core of rocking handle installation department has seted up the rocking handle through-hole that runs through from top to bottom completely, and the revolving axle inlays and inserts in the rocking handle through-hole of rocking handle installation department, and revolving axle and rocking handle through-hole interference fit.

The fixed base is provided with an upward protruding blade guide post on the bottom surface of the blade accommodating cavity, an upper blade guide groove which penetrates through the edge part of the upper movable blade completely and linearly extends along the left-right direction is formed in the edge part of the upper movable blade, a lower blade guide groove which penetrates through the edge part of the lower movable blade completely and linearly extends along the left-right direction is formed in the edge part of the lower movable blade, and the blade guide post is sequentially inserted into the lower blade guide groove and the upper blade guide groove from bottom to top.

The fixed base is provided with a lower blade sliding rail and an upper blade sliding rail on the bottom surface of the blade accommodating cavity, the lower surface of the lower movable blade is contacted with the lower blade sliding rail, and the lower surface of the upper movable blade is contacted with the upper blade sliding rail.

Wherein, unable adjustment base and fixed apron lock joint.

The beneficial effects of the invention are as follows: the invention relates to an aperture and shutter, which comprises a fixed base and a fixed cover plate, wherein the fixed base is provided with a blade accommodating cavity with an upward opening, the fixed cover plate is covered and arranged at the upper end opening of the blade accommodating cavity of the fixed base, the middle part of the fixed base is provided with a base light-passing hole which completely penetrates up and down and is communicated with the blade accommodating cavity, and the middle part of the fixed cover plate is provided with a cover plate light-passing hole which completely penetrates up and down and is vertically aligned with the base light-passing hole; the movable blade assembly comprises an upper movable blade and a lower movable blade, wherein the upper movable blade and the lower movable blade are horizontally and transversely arranged respectively, an upper blade driving part is arranged at the right end part of the upper movable blade, and an upper blade driving hole which completely penetrates up and down is formed in the upper blade driving part; the right end part of the lower movable blade is provided with a lower blade driving part, and the lower blade driving part is provided with a lower blade driving hole which completely penetrates up and down; the aperture and shutter also comprises a blade driving assembly, wherein the blade driving assembly comprises a magnet rocking handle mechanism, a winding assembly and a coil winding wound around the periphery of the winding assembly, the winding assembly comprises a winding main body and a winding upper cover arranged at the upper end part of the winding main body, the winding main body and the winding upper cover are respectively hard plastic parts, the winding main body is provided with a main body winding groove, the winding upper cover is provided with an upper cover winding groove, the coil winding is positioned in the main body winding groove and the upper cover winding groove, and a magnet accommodating cavity is formed between the winding main body and the winding upper cover; the right end part of the fixed base is provided with a fixed installation hole site which is downwards opened and communicated with the blade accommodating cavity, and the upper end part of the winding upper cover is embedded and clamped and fixed on the fixed installation hole site of the fixed base; the magnet rocking handle mechanism comprises a movable rocking handle, a movable magnet and a rotary shaft, wherein the movable magnet is in a cylindrical shape and is vertically arranged, and the movable magnet is embedded in the magnet accommodating cavity; the rotary shaft is positioned in the magnet accommodating cavity, the upper end part of the rotary shaft is connected with the winding upper cover, and the lower end part of the rotary shaft is connected with the winding main body; the core part of the movable magnet is provided with a magnet through hole which penetrates through the movable magnet from top to bottom, the movable rocking handle comprises a rocking handle installation part which is embedded and clamped in the magnet through hole of the movable magnet, the rocking handle installation part is sleeved on the periphery of the rotary shaft, the upper end part of the rocking handle installation part is provided with a first driving rocking arm and a second driving rocking arm, and the first driving rocking arm and the second driving rocking arm are respectively integrated with the rocking handle installation part; a first clearance hole corresponding to the first driving swing arm and a second clearance hole corresponding to the second driving swing arm are formed in the middle of the winding upper cover and the winding main body, the first driving swing arm penetrates through the first clearance hole, the second driving swing arm penetrates through the second clearance hole, the upper end part of the first driving swing arm stretches into the blade accommodating cavity, the upper end part of the first driving swing arm is inserted into the upper blade driving hole of the upper movable blade, the upper end part of the second driving swing arm stretches into the blade accommodating cavity, and the upper end part of the second driving swing arm is inserted into the lower blade driving hole of the lower movable blade; the winding main body is provided with limiting magnets which are in strip shapes and are vertically arranged at the periphery of the movable magnets, and damping magnets which are in ring shapes and are coaxially arranged with the movable magnets are wound and assembled by the wire. Through the structural design, the invention has the functions of the aperture and the shutter, namely, the invention has the advantages of novel design, simple structure and multiple functions.

Drawings

The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of a partial structure of the present invention.

FIG. 4 is a schematic view of a blade drive assembly according to the present invention.

FIG. 5 is an exploded view of the blade drive assembly of the present invention.

FIG. 6 is a schematic cross-sectional view of a blade drive assembly of the present invention.

Fig. 1 to 6 include:

1-fixed base 11-blade accommodation cavity

12-Base light hole 13-fixed mounting hole site

14-Blade guide column 151-upper blade slide rail

152-Lower blade slide rail 2-fixed cover plate

21-Cover plate light hole 3-movable blade assembly

31-Upper movable blade 311-upper blade driving part

312-Upper vane drive hole 313-upper vane guide slot

32-Lower movable blade 321-lower blade driving part

322-Lower blade driving hole 323-lower blade guide groove

4-Blade driving component 41-magnet rocking handle mechanism

411-Movable rocking handle 4111-rocking handle mounting portion

4112 First driving swing arm 41121 first driving shaft portion

41122-First anti-drop hook 4113-second driving swing arm

41131 Second driving shaft 41132 second anti-drop hook

412-Movable magnet 4121-magnet through hole

413-Rotating shaft 42-winding assembly

421-Winding body 4211-body winding slot

4212A magnet clamping groove 4213A main body positioning hole

422-Winding upper cover 4221-upper cover winding groove

4222-Upper cover positioning hole 423-magnet accommodating cavity

4241-First and second clearance holes 4242 and 4241

43-Coil winding 44-limit magnet

45-Damping magnet 46-round iron

47-Metal PIN 48-circuit board.

Detailed Description

The invention will be described with reference to specific embodiments.

As shown in fig. 1 to 3, a diaphragm/shutter is characterized in that: the device comprises a fixed base 1 and a fixed cover plate 2, wherein the fixed base 1 is provided with a blade accommodating cavity 11 with an upward opening, the fixed cover plate 2 is covered and arranged at the upper end opening of the blade accommodating cavity 11 of the fixed base 1, the middle part of the fixed base 1 is provided with a base light-passing hole 12 which completely penetrates up and down and is communicated with the blade accommodating cavity 11, and the middle part of the fixed cover plate 2 is provided with a cover plate light-passing hole 21 which completely penetrates up and down and is vertically aligned with the base light-passing hole 12; the movable blade assembly 3 is embedded in the blade accommodating cavity 11, the movable blade assembly 3 comprises an upper movable blade 31 and a lower movable blade 32, the upper movable blade 31 is horizontally and transversely arranged, the lower movable blade 32 is positioned below the upper movable blade 31, an upper blade driving part 311 is arranged at the right end part of the upper movable blade 31, and an upper blade driving hole 312 which completely penetrates up and down is formed in the upper blade driving part 311; the right end portion of the lower movable blade 32 is provided with a lower blade driving portion 321, and the lower blade driving portion 321 is provided with a lower blade driving hole 322 penetrating completely up and down.

It should be explained that the fixing base 1 and the fixing cover plate 2 are buckled; of course, the above-mentioned assembly method does not limit the present invention, that is, the fixing base 1 and the fixing cover 2 of the present invention may be assembled and connected by a screw connection method.

As shown in fig. 1 to 6, the aperture and shutter further includes a blade driving assembly 4, the blade driving assembly 4 includes a magnet rocking handle mechanism 41, a winding assembly 42, and a coil winding 43 wound around the periphery of the winding assembly 42, the winding assembly 42 includes a winding main body 421 and a winding upper cover 422 mounted on the upper end of the winding main body 421, the winding main body 421 and the winding upper cover 422 are respectively hard plastic members, the winding main body 421 is provided with a main body winding groove 4211, the winding upper cover 422 is provided with an upper cover winding groove 4221, the coil winding 43 is located in the main body winding groove 4211 and the upper cover winding groove 4221, and a magnet accommodating cavity 423 is formed between the winding main body 421 and the winding upper cover 422; the right end of the fixed base 1 is provided with a fixed installation hole site 13 which is downwards opened and communicated with the blade accommodating cavity 11, and the upper end of the winding upper cover 422 is embedded and clamped and fixed on the fixed installation hole site 13 of the fixed base 1. In addition, a round iron 46 having a circular ring shape is fastened to the outer periphery of the winding body 421, and the round iron 46 serves as a peripheral protection structure of the winding body 421.

Further, the magnet rocking handle mechanism 41 comprises a movable rocking handle 411, a movable magnet 412 and a rotary shaft 413, wherein the movable magnet 412 is in a cylindrical shape and is vertically arranged, and the movable magnet 412 is embedded in the magnet accommodating cavity 423; the rotary shaft 413 is positioned in the magnet accommodating cavity 423, the upper end part of the rotary shaft 413 is connected with the winding upper cover 422, and the lower end part of the rotary shaft 413 is connected with the winding main body 421; the core part of the movable magnet 412 is provided with a magnet through hole 4121 which completely penetrates through the core part, the movable rocking handle 411 comprises a rocking handle mounting part 4111 which is embedded and clamped in the magnet through hole 4121 of the movable magnet 412, the rocking handle mounting part 4111 is sleeved on the periphery of the rotary shaft 413, the upper end part of the rocking handle mounting part 4111 is provided with a first driving rocking arm 4112 and a second driving rocking arm 4113, and the first driving rocking arm 4112 and the second driving rocking arm 4113 are respectively integrated with the rocking handle mounting part 4111; a first clearance hole 4241 corresponding to the first driving swing arm 4112 and a second clearance hole 4242 corresponding to the second driving swing arm 4113 are formed in the middle of the winding upper cover 422 and the winding main body 421, the first driving swing arm 4112 penetrates through the first clearance hole 4241, the second driving swing arm 4113 penetrates through the second clearance hole 4242, the upper end of the first driving swing arm 4112 stretches into the blade accommodating cavity 11, the upper end of the first driving swing arm 4112 is inserted into the upper blade driving hole 312 of the upper movable blade 31, the upper end of the second driving swing arm 4113 stretches into the blade accommodating cavity 11, and the upper end of the second driving swing arm 4113 is inserted into the lower blade driving hole 322 of the lower movable blade 32.

For the rotary shaft 413 of the present invention, it can be mounted in the following manner, specifically: the winding upper cover 422 is provided with an upper cover positioning hole 4222 which is opened downwards corresponding to the rotary shaft 413, the winding main body 421 is provided with a main body positioning hole 4213 corresponding to the rotary shaft 413 at the bottom of the magnet accommodating cavity 423, the upper end part of the rotary shaft 413 is embedded in the upper cover positioning hole 4222, and the lower end part of the rotary shaft 413 is embedded in the main body positioning hole 4213; the rocking handle mounting portion 4111 has a rocking handle through hole formed in a core portion thereof, which penetrates completely up and down, the rotary shaft 413 is inserted into the rocking handle through hole of the rocking handle mounting portion 4111, and the rotary shaft 413 is interference fit with the rocking handle through hole.

Further, the winding body 421 is provided with a vertically arranged limit magnet 44 having a strip shape at the periphery of the movable magnet 412, and the winding body 43 is provided with a damping magnet 45 having a ring shape and coaxially arranged with the movable magnet 412. It should be explained that, the winding body 421 is provided with a magnet clamping groove corresponding to the limit magnet 44, and the limit magnet 44 is embedded in the magnet clamping groove of the winding body 421.

For the movable rocking handle 411 of the present invention, as shown in fig. 4 to 6, the upper end portion of the first driving swing arm 4112 is provided with a first driving shaft portion 41121 protruding upwards, the first driving shaft portion 41121 is inserted into the upper blade driving hole 312 of the upper movable blade 31, and the first driving shaft portion 41121 and the first driving swing arm 4112 are in an integral structure; similarly, the upper end portion of the second driving swing arm 4113 is provided with a second driving shaft portion 41131 protruding upwards, the second driving shaft portion 41131 is inserted into the lower blade driving hole 322 of the lower movable blade 32, and the second driving shaft portion 41131 and the second driving swing arm 4113 are integrally formed. In addition, in order to prevent the upper movable vane 31 from being separated from the first driving shaft portion 41121 and the lower movable vane 32 from being separated from the second driving shaft portion 41131, the first driving shaft portion 41121 and the second driving shaft portion 41131 of the present invention may be designed with the following limiting structures: the upper end portion of the first driving shaft portion 41121 is provided with a first escape prevention hook 41122 protruding horizontally outward, the first escape prevention hook 41122 being located on the upper end side of the upper movable blade 31; the upper end portion of the second driving shaft portion 41131 is provided with a second drop-preventing hook 41132 protruding horizontally outward, and the second drop-preventing hook 41132 is located on the upper end side of the lower movable blade 32.

In the working process of the invention, the magnetic field acting force generated after the coil winding 43 is electrified acts on the movable magnet 412, the movable magnet 412 rotates under the action of the magnetic field acting force, and the movable magnet 412 drives the movable rocking handle 411 to synchronously rotate, so that the first driving rocking arm 4112 and the second driving rocking arm 4113 of the movable rocking handle 411 swing, the first driving rocking arm 4112 of the swing pulls the upper blade driving part 311 of the upper movable blade 31 through the first driving shaft part 41121 thereof, the second driving rocking arm 4113 of the swing pulls the lower blade driving part 321 of the lower movable blade 32 through the second driving shaft part 41131 thereof, the upper movable blade 31 and the lower movable blade 32 move left and right in the blade accommodating cavity 11 of the fixed base 1 under the driving action of the corresponding first driving rocking arm 4112 and the second driving rocking arm 4113, and the upper movable blade 31 and the lower movable blade 32 synchronously move reversely.

It should be noted that, when the movable rocker 411 drives the upper movable blade 31 and the lower movable blade 32 to be opened and closed rapidly, the present invention can realize a shutter function; the present invention can realize the aperture function when the movable crank 411 drives the upper movable blade 31 and the lower movable blade 32 to be maintained at the light passing hole area of the prescribed size. Therefore, the invention has the functions of aperture (automatic aperture and precise aperture) and shutter, and only needs to adjust the power-on pulse mode, thus having simple structure, simple operation and low cost.

It should be further noted that, in the process of driving the movable magnet 412 to rotate by the magnetic field acting force generated by the energizing of the coil winding 43, the coil winding 43 generates power, and the limit magnet 44 and the damping magnet 45 generate resistance to the movable magnet 412, and the relationship between the power and the resistance can be changed by the voltage change, that is, the power is greater than the resistance or equal to the resistance or less than the resistance; when the power is equal to the resistance, the invention can realize the balance of two forces; when the power is not equal to the resistance, the invention can generate unbalance of two forces. For the case of balance of the two forces, the movable magnet 412 of the present invention can be stopped at any position, so as to maintain the light passing hole area at the required size.

The invention has the functions of aperture (automatic aperture, precise aperture) and shutter, that is, the invention has the advantages of novel design, simple structure and multiple functions.

As a preferred embodiment, as shown in fig. 1 to 6, a metal PIN 47 protruding downward is provided around the main body, and the outgoing line of the wire wrap 43 is welded to the metal PIN 47; the aperture and shutter further comprises a circuit board 48, wherein the metal PIN needle 47 is welded with the circuit board 48, and the metal PIN needle 47 is electrically connected with an internal circuit of the circuit board 48. The circuit board 48 of the present invention may be a PCB circuit board 48 or an FPC circuit board 48, and the circuit board 48 of the present invention is electrically connected to an external power source through a wire.

In addition, a hall sensor can be installed in the magnet accommodating cavity 423 of the invention, the hall sensor is electrically connected with the circuit board 48, and the hall sensor accurately detects the rotation angle of the movable magnet 412, so as to accurately control the moving positions of the upper movable blade 31 and the lower movable blade 32, thereby realizing the installation of the hall sensor in a precise aperture and leading the aperture precision to be higher.

As a preferred embodiment, as shown in fig. 2 and 3, in order to ensure smooth and reliable left-right movement of the upper and lower movable blades 31, 32, the present invention adopts the following guide structure design, in particular: the fixed base 1 is provided with a blade guide post 14 protruding upward on the bottom surface of the blade accommodating chamber 11, an upper blade guide groove 313 extending straight in the left-right direction and penetrating completely up and down is provided on the edge of the upper movable blade 31, a lower blade guide groove 323 extending straight in the left-right direction and penetrating completely up and down is provided on the edge of the lower movable blade 32, and the blade guide post 14 is sequentially inserted into the lower blade guide groove 323 and the upper blade guide groove 313 from bottom to top.

As a preferred embodiment, as shown in fig. 2 and 3, the fixed base 1 is provided with a lower blade rail 152 and an upper blade rail 151 on the bottom surface of the blade accommodating chamber 11, the lower surface of the lower movable blade 32 is in contact with the lower blade rail 152, and the lower surface of the upper movable blade 31 is in contact with the upper blade rail 151. In the process that the upper movable blade 31 and the lower movable blade 32 slide left and right relative to the fixed base 1, the contact area between the lower movable blade 32 and the fixed base 1 can be effectively reduced by the lower blade slide rail 152, so that the friction force between the lower movable blade 32 and the fixed base 1 can be effectively reduced, and the smoothness of the movement of the lower movable blade 32 is improved; similarly, the upper blade sliding rail 151 can effectively reduce the contact area between the upper movable blade 31 and the fixed base 1, and further can effectively reduce the friction between the upper movable blade 31 and the fixed base 1, so as to improve the smoothness of the movement of the upper movable blade 31.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims

1. An aperture and shutter, characterized in that: the device comprises a fixed base (1) and a fixed cover plate (2), wherein the fixed base (1) is provided with a blade accommodating cavity (11) which is opened upwards, the fixed cover plate (2) is covered and arranged at the upper end opening of the blade accommodating cavity (11) of the fixed base (1), the middle part of the fixed base (1) is provided with a base light-passing hole (12) which completely penetrates up and down and is communicated with the blade accommodating cavity (11), and the middle part of the fixed cover plate (2) is provided with a cover plate light-passing hole (21) which completely penetrates up and down and is vertically aligned with the base light-passing hole (12); the movable blade assembly (3) is embedded in the blade accommodating cavity (11), the movable blade assembly (3) comprises an upper movable blade (31) which is horizontally and transversely arranged and a lower movable blade (32) which is positioned below the upper movable blade (31), an upper blade driving part (311) is arranged at the right end part of the upper movable blade (31), and an upper blade driving hole (312) which completely penetrates up and down is formed in the upper blade driving part (311); the right end part of the lower movable blade (32) is provided with a lower blade driving part (321), and the lower blade driving part (321) is provided with a lower blade driving hole (322) which completely penetrates up and down;

The aperture and shutter also comprises a blade driving assembly (4), wherein the blade driving assembly (4) comprises a magnet rocking handle mechanism (41), a winding assembly (42) and a coil winding (43) wound around the periphery of the winding assembly (42), the winding assembly (42) comprises a winding main body (421) and a winding upper cover (422) arranged at the upper end part of the winding main body (421), the winding main body (421) and the winding upper cover (422) are hard plastic parts respectively, the winding main body (421) is provided with a main body winding groove (4211), the winding upper cover (422) is provided with an upper cover winding groove (4221), the coil winding (43) is positioned in the main body winding groove (4211) and the upper cover winding groove (4221), and a magnet accommodating cavity (423) is formed between the winding main body (421) and the winding upper cover (422); the right end part of the fixed base (1) is provided with a fixed installation hole site (13) which is downwards opened and communicated with the blade accommodating cavity (11), and the upper end part of the winding upper cover (422) is embedded and clamped and fixed on the fixed installation hole site (13) of the fixed base (1);

The magnet rocking handle mechanism (41) comprises a movable rocking handle (411), a movable magnet (412) and a rotary shaft (413), wherein the movable magnet (412) is in a cylindrical shape and is vertically arranged, and the movable magnet (412) is embedded in the magnet accommodating cavity (423); the rotary shaft (413) is positioned in the magnet accommodating cavity (423), the upper end part of the rotary shaft (413) is connected with the winding upper cover (422), and the lower end part of the rotary shaft (413) is connected with the winding main body (421); the core part of the movable magnet (412) is provided with a magnet through hole (4121) which penetrates through the movable magnet (412) completely up and down, the movable rocking handle (411) comprises a rocking handle mounting part (4111) which is embedded and clamped in the magnet through hole (4121) of the movable magnet (412), the rocking handle mounting part (4111) is sleeved on the periphery of the rotating shaft (413), the upper end part of the rocking handle mounting part (4111) is provided with a first driving rocking arm (4112) and a second driving rocking arm (4113), and the first driving rocking arm (4112) and the second driving rocking arm (4113) are respectively in an integral structure with the rocking handle mounting part (4111); a first clearance hole (4241) corresponding to the first driving swing arm (4112) and a second clearance hole (4242) corresponding to the second driving swing arm (4113) are formed in the middle of the winding upper cover (422) and the winding main body (421), the first driving swing arm (4112) penetrates through the first clearance hole (4241), the second driving swing arm (4113) penetrates through the second clearance hole (4242), the upper end part of the first driving swing arm (4112) stretches into the blade accommodating cavity (11) and the upper end part of the first driving swing arm (4112) is inserted into the upper blade driving hole (312) of the upper movable blade (31), the upper end part of the second driving swing arm (4113) stretches into the blade accommodating cavity (11) and the upper end part of the second driving swing arm (4113) is inserted into the lower blade driving hole (322) of the lower movable blade (32);

the wire winding main body (421) is provided with a limit magnet (44) which is in a strip shape and is vertically arranged at the periphery of the movable magnet (412), and the wire winding (43) is provided with a damping magnet (45) which is in a ring shape and is coaxially arranged with the movable magnet (412);

The upper end part of the first driving swing arm (4112) is provided with a first driving shaft part (41121) protruding upwards, the first driving shaft part (41121) is embedded in an upper blade driving hole (312) of the upper movable blade (31), and the first driving shaft part (41121) and the first driving swing arm (4112) are of an integrated structure;

the upper end part of the second driving swing arm (4113) is provided with a second driving shaft part (41131) protruding upwards, the second driving shaft part (41131) is embedded in a lower blade driving hole (322) of the lower movable blade (32), and the second driving shaft part (41131) and the second driving swing arm (4113) are of an integrated structure;

the upper end part of the first driving shaft part (41121) is provided with a first anti-drop hook (41122) which horizontally protrudes outwards, and the first anti-drop hook (41122) is positioned on the upper end side of the upper movable blade (31);

The upper end part of the second driving shaft part (41131) is provided with a second anti-drop hook (41132) which horizontally protrudes outwards, and the second anti-drop hook (41132) is positioned on the upper end side of the lower movable blade (32);

The winding body (421) is provided with a magnet clamping groove corresponding to the limit magnet (44), and the limit magnet (44) is embedded and clamped in the magnet clamping groove of the winding body (421);

An upper cover positioning hole (4222) which is opened downwards is formed in the upper winding cover (422) corresponding to the rotary shaft (413), a main body positioning hole (4213) is formed in the bottom of the magnet accommodating cavity (423) corresponding to the rotary shaft (413), the upper end part of the rotary shaft (413) is embedded in the upper cover positioning hole (4222), and the lower end part of the rotary shaft (413) is embedded in the main body positioning hole (4213); the core of the rocking handle installation part (4111) is provided with a rocking handle through hole which penetrates completely from top to bottom, the rotary shaft (413) is embedded in the rocking handle through hole of the rocking handle installation part (4111), and the rotary shaft (413) is in interference fit with the rocking handle through hole.

2. The aperture and shutter as claimed in claim 1, wherein: a round iron (46) which is in a circular ring shape is tightly sleeved on the periphery of the winding main body (421).

3. The aperture and shutter as claimed in claim 1, wherein: the winding body (421) is provided with a metal PIN needle (47) which protrudes downwards and extends, and the outgoing line of the coil winding (43) is welded with the metal PIN needle (47);

The aperture and shutter also comprises a circuit board (48), wherein the metal PIN needle (47) is welded with the circuit board (48), and the metal PIN needle (47) is electrically connected with an internal circuit of the circuit board (48).

4. The aperture and shutter as claimed in claim 1, wherein: the fixed base (1) is provided with an upward protruding blade guide post (14) at the bottom surface of the blade accommodating cavity (11), an upper blade guide groove (313) which penetrates through the upper movable blade (31) completely and linearly extends along the left-right direction is formed in the edge part of the upper movable blade (31), a lower blade guide groove (323) which penetrates through the lower movable blade (32) completely and linearly extends along the left-right direction is formed in the edge part of the lower movable blade (32), and the blade guide post (14) is sequentially inserted into the lower blade guide groove (323) and the upper blade guide groove (313) from bottom to top.

5. The aperture and shutter as claimed in claim 1, wherein: the fixed base (1) is provided with a lower blade sliding rail (152) and an upper blade sliding rail (151) on the bottom surface of the blade accommodating cavity (11), the lower surface of the lower movable blade (32) is contacted with the lower blade sliding rail (152), and the lower surface of the upper movable blade (31) is contacted with the upper blade sliding rail (151).

6. The aperture and shutter as claimed in claim 1, wherein: the fixed base (1) is buckled with the fixed cover plate (2).