CN115016197A

CN115016197A - Shading device at lens of artistic photographic camera

Info

Publication number: CN115016197A
Application number: CN202210376355.5A
Authority: CN
Inventors: 李爱平
Original assignee: Xingtai Polytechnic College
Current assignee: Xingtai Polytechnic College
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-09-06

Abstract

The invention discloses a shading device at the lens of an artistic photographic camera, and relates to the technical field of cameras. This kind of shade of art photographic camera lens department, including camera body and lens hood, the camera body includes lens cone and camera lens, and the lens hood can dismantle with the lens cone and be connected, the lateral wall at the lens cone is established to the lens hood cover, and the fixed gasbag that is equipped with the annular setting of inserting of inside wall of lens hood, the lateral wall of lens hood is provided with and is used for carrying out the gas filled mechanism to the gasbag, the lateral wall of lens hood is provided with and is used for carrying out the mechanism that loses heart to the gasbag. Inflation and deflation of the air bag realize quick installation and disassembly of the light shield, and meanwhile, the extension length of the light shield can be adjusted conveniently according to use requirements, so that the light shield is more convenient to use, and has a good buffering effect after the air bag is inflated, so that the light shield can play a buffering protection effect when an external force touches the light shield, and the damage to the light shield and a camera body is avoided.

Description

Shading device at lens of artistic photographic camera

Technical Field

The invention relates to the technical field of cameras, in particular to a shading device at a lens of an artistic photographic camera.

Background

An artistic photographic camera is one of photographic equipment, but when the camera is used, the influence of external light can cause halation or flare in a shot picture, so that the shooting quality is influenced, and a light shield is produced on the market and can block the external light, so that the occurrence of halation and the like is avoided.

But current lens hood adopts the rotatory joint of bayonet socket when being connected with the camera, convenient and fast inadequately when installation and dismantlement, and when the lens hood received external force collision, cause bayonet socket joint to damage easily, and simultaneously, current lens hood length can not be adjusted, need change the lens hood of different length according to the user demand when using, it is more troublesome to use, and, when the camera lens was stained with impurity such as dust, because the existence of lens hood 12, make when clearing up inconvenient inadequately, even clear up the back, impurity also can fall in the lens hood, the clearance effect is poor.

Disclosure of Invention

The present invention is directed to a light shielding device for an artistic camera lens to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a shading device at the lens position of an artistic photographic camera comprises a camera body and a shading cover, wherein the camera body comprises a lens barrel and a lens, the shading cover is detachably connected with the lens barrel, the shading cover is sleeved on the side wall of the lens barrel, an annular airbag is fixedly inserted into the inner side wall of the shading cover, an inflating mechanism for inflating the airbag is arranged on the outer side wall of the shading cover, an deflating mechanism for deflating the airbag is arranged on the outer side wall of the shading cover, and an air blowing mechanism for blowing and cleaning the lens is arranged on the side wall of the shading cover;

the inflation mechanism comprises an inflation tube fixedly inserted in the side wall of the light shield, the side wall of the inflation tube is fixedly connected with a pressure gauge, one end of the inflation tube is fixed with the side wall of the air bag, the other end of the inflation tube is fixedly connected with a first connecting tube, a first one-way assembly is arranged in the first connecting tube, the other end of the first connecting tube is fixedly connected with a second connecting tube, the other end of the second connecting tube is fixedly connected with a third connecting tube, a second one-way assembly is arranged in the third connecting tube, the other end of the third connecting tube is fixedly connected with an air inlet tube, the side wall of the second connecting tube is fixedly connected with a fourth connecting tube, a piston is slidably connected in the fourth connecting tube, the upper end of the piston is fixedly connected with a push rod, the upper end of the push rod penetrates through the top of the fourth connecting tube and is provided with a push mechanism for pushing the push rod to move, and the side wall of the inflation tube is provided with an exhaust assembly for avoiding overlarge pressure intensity in the air bag.

Preferably, the first one-way assembly comprises a first filter plate and a first conical sleeve which are fixedly connected in the first connecting pipe, the side wall of the first filter plate is fixedly connected with a first round ball through a first spring, and the first round ball is abutted to the inner side wall of the first conical sleeve.

Preferably, the one-way subassembly of second includes second filter and the second toper cover of fixed connection in the third connecting tube, the lateral wall of second filter passes through second spring fixedly connected with second ball, and the second ball offsets with the inside wall of second toper cover.

Preferably, pushing mechanism includes the first T shape guide arm that fixed connection set up at two symmetries of second connecting pipe lateral wall, and the fixed cover of lateral wall of each first T shape guide arm is equipped with solid fixed ring, the lateral wall cover of first T shape guide arm is equipped with the sliding block, and the last lateral wall fixedly connected with of sliding block presses the briquetting, each the lateral wall cover of first T shape guide arm is equipped with the third spring.

Preferably, the exhaust assembly comprises an exhaust pipe fixedly connected to the side wall of the inflation pipe, a third conical sleeve is fixedly connected to the inside of the exhaust pipe, a third filter plate is connected to the inside of the exhaust pipe through a moving mechanism, a third ball is fixedly connected to the side wall of the third filter plate through a fourth spring, and the third ball abuts against the inner side wall of the third conical sleeve.

Preferably, moving mechanism includes the supporting shoe that two symmetries of fixed connection in the blast pipe inside wall set up, and the lateral wall fixedly connected with guide bar of one of them supporting shoe, the lateral wall cover of guide bar is equipped with fixed pipe, and the other end of fixed pipe is fixed with the lateral wall of third filter, the lateral wall fixedly connected with thread bush of third filter, and thread bush internal thread connection has the threaded rod, the other end of threaded rod rotates with the lateral wall of another supporting shoe to be connected, and the rotation of threaded rod drives through actuating mechanism.

Preferably, actuating mechanism is including rotating the pivot of connection at the blast pipe lateral wall, the one end fixedly connected with poker rod of pivot, and the first bevel gear of the other end fixedly connected with of pivot, the one end fixedly connected with second bevel gear of threaded rod, and second bevel gear and the meshing of first bevel gear set up, the lateral wall of blast pipe is provided with the scale mark.

Preferably, the mechanism of blowing is including seting up the through-hole that sets up at a plurality of arrays of lens hood inside wall, the fixed cover that the lateral wall fixed cover of lens hood was equipped with the annular and sets up, and the inside intercommunication of through-hole and fixed cover, the other end of blast pipe is fixed with the lateral wall of fixed cover, and the lateral wall fixedly connected with fixed block of fixed cover, the other end of intake pipe runs through the lateral wall and the fixedly connected with fifth connecting pipe of fixed block, and the exhaust tube that the other end fixedly connected with slope of fifth connecting pipe set up downwards.

Preferably, mechanism loses heart and inserts the sixth connecting pipe of establishing at the lens hood lateral wall including fixed, and the other end fixedly connected with work cover of sixth connecting pipe, the lateral wall fixedly connected with who sixth connecting pipe loses heart pipe is kept away from to the work cover, and the work cover interpolation is equipped with the closing plate, the closing plate passes through canceling release mechanical system and is connected with the lateral wall of work cover, and the round hole has been seted up to the lateral wall of closing plate.

Preferably, the reset mechanism comprises two first connecting blocks which are symmetrically arranged on the side wall of the working cover and fixedly connected with the side wall of each first connecting block, a second T-shaped guide rod is inserted into the side wall of each first connecting block, two second connecting blocks which are symmetrically arranged are fixedly connected with the upper end of each second T-shaped guide rod and fixed with the side wall of the sealing plate, and a fifth spring is sleeved on the side wall of each second T-shaped guide rod.

Compared with the prior art, the invention has the beneficial effects that:

(1) the shading device at the lens of the artistic photographic camera is provided with an inflating mechanism and the like, when in use, firstly, a shading cover is sleeved on a lens cone, then, a pressing block is pressed, a piston is driven to move downwards along the side wall of a fourth connecting pipe through a push rod, meanwhile, a third spring contracts, at the moment, air in a second connecting pipe is extruded, a first one-way component is opened, a second one-way component is closed, at the moment, the air in the second connecting pipe enters an air bag through an inflating pipe after being extruded, when the pressing block is loosened, the piston moves upwards under the action of the third spring to reset, at the moment, negative pressure is generated in the second connecting pipe, at the moment, the first one-way component is closed, the second one-way component is opened, at the moment, external air enters the second connecting pipe after passing through an exhaust pipe, a fifth connecting pipe, an air inlet pipe and the third connecting pipe, according to the pressing block so reciprocal, can make the gasbag restore to the throne with the lateral wall of lens cone after expanding fast, realize the quick installation to the lens hood, when needs are dismantled the lens hood, only need lose heart the mechanism through disappointing can the gasbag, it is also convenient to dismantle, meanwhile, be convenient for adjust the extension length of lens hood, guarantee that the gasbag homoenergetic can offset with the lateral wall of camera lens and realize the installation, and, the gasbag has fine buffering effect, when external force touches the lens hood, can play buffering protective effect, avoid the damage of lens hood and camera body.

(2) This kind of shade of art photographic camera lens department, through setting up exhaust subassembly etc, when pressure in the gasbag is great, promote the third ball and remove, make the inside wall of third ball and third taper sleeve no longer offset, at this moment, the air in the gas tube passes through the blast pipe and discharges, avoid the too big camera body that causes of pressure in the gasbag to damage, and, can make the third filter remove through moving mechanism, adjust the compression capacity of fourth spring promptly, and then adjust the maximum pressure in the gasbag, excellent in use effect.

(3) This kind of shade of artistic photographic camera lens department, through setting up the mechanism of blowing etc, when the clearance of blowing to the camera lens needs, reciprocal pressing press block, continue to bleed through the exhaust tube, because the pressure in the gasbag reaches the requirement, when continuing to aerify, the air can be discharged through the blast pipe, exhaust air gets into in the fixed cover, and, spray the surface at the camera lens through the through-hole, the realization is blown the clearance to the impurity on camera lens surface, it is more convenient to clear up, meanwhile, the exhaust tube has adsorption effect when bleeding, be convenient for take out the impurity after the clearance from the lens hood, make the clearance to impurity more thorough, the effect is better.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of another embodiment of the present invention;

FIG. 3 is a schematic perspective view of the bladder of the present invention;

FIG. 4 is a schematic perspective view of an alternative aspect of the bladder of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 6 is an enlarged view of the structure at B in FIG. 2;

FIG. 7 is an enlarged view of the structure at C in FIG. 3;

FIG. 8 is an enlarged view of the structure of FIG. 3 at D;

FIG. 9 is an enlarged view of the structure at E in FIG. 4;

fig. 10 is an enlarged schematic view of F in fig. 5.

In the figure: 1. a camera body; 101. a lens barrel; 102. a lens; 2. an inflation mechanism; 201. an inflation tube; 202. a first connecting pipe; 203. a second connecting pipe; 204. a third connecting pipe; 205. an air inlet pipe; 206. a fourth connecting pipe; 207. a piston; 208. a push rod; 209. a pressure gauge; 3. a pushing mechanism; 301. a first T-shaped guide rod; 302. a fixing ring; 303. a third spring; 304. a slider; 305. pressing the block; 4. a first unidirectional component; 401. a first filter plate; 402. a first conical sleeve; 403. a first spring; 404. a first round ball; 5. a second unidirectional component; 501. a second filter plate; 502. a second tapered sleeve; 503. a second spring; 504. a second sphere; 6. an exhaust assembly; 601. an exhaust pipe; 602. a third filter plate; 603. a third tapered sleeve; 604. a fourth spring; 605. a third sphere; 7. a moving mechanism; 701. a support block; 702. a guide rod; 703. a fixed tube; 704. a threaded sleeve; 705. a threaded rod; 8. a drive mechanism; 801. a rotating shaft; 802. a first bevel gear; 803. a second bevel gear; 804. a poke rod; 805. scale marks; 9. a blowing mechanism; 901. a through hole; 902. a fixed cover; 903. a fixed block; 904. a fifth connecting pipe; 905. an air exhaust pipe; 10. an air release mechanism; 1001. a sixth connecting pipe; 1002. a working cover; 1003. an air escape pipe; 1004. a sealing plate; 1005. a circular hole; 11. an air bag; 12. a light shield; 13. a reset mechanism; 1301. a first connection block; 1302. a second T-shaped guide rod; 1303. a second connecting block; 1304. and a fifth spring.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a shading device for a lens of an artistic photographic camera comprises a camera body 1 and a shading cover 12, wherein the camera body 1 comprises a lens barrel 101 and a lens 102, the shading cover 12 is detachably connected with the lens barrel 101, the shading cover 12 is sleeved on the side wall of the lens barrel 101, an annular airbag 11 is fixedly inserted into the inner side wall of the shading cover 12, an inflating mechanism 2 for inflating the airbag 11 is arranged on the outer side wall of the shading cover 12, an deflating mechanism 10 for deflating the airbag 11 is arranged on the outer side wall of the shading cover 12, a blowing mechanism 9 for blowing and cleaning the lens 102 is arranged on the side wall of the shading cover 12, the rapid installation and disassembly of the shading cover 12 are realized through inflation and deflation of the airbag 11, meanwhile, the extending length of the shading cover 12 can be conveniently adjusted according to use requirements, the use is more convenient, and the airbag 11 has good buffering effect after being inflated, when an external force touches the light shield 12, the buffer protection effect can be achieved, and the light shield 12 and the camera body 1 are prevented from being damaged;

the inflating mechanism 2 comprises an inflating tube 201 fixedly inserted on the side wall of the light shield 12, a pressure gauge 209 is fixedly connected on the side wall of the inflating tube 201, one end of the inflating tube 201 is fixed with the side wall of the airbag 11, a first connecting tube 202 is fixedly connected with the other end of the inflating tube 201, a first one-way component 4 is arranged in the first connecting tube 202, a second connecting tube 203 is fixedly connected with the other end of the first connecting tube 202, a third connecting tube 204 is fixedly connected with the other end of the second connecting tube 203, a second one-way component 5 is arranged in the third connecting tube 204, an air inlet tube 205 is fixedly connected with the other end of the third connecting tube 204, a fourth connecting tube 206 is fixedly connected with the side wall of the second connecting tube 203, a piston 207 is slidably connected with the fourth connecting tube 206, a push rod 208 is fixedly connected with the upper end of the piston 207, the upper end of the push rod 208 is arranged through the top of the fourth connecting tube 206, the side wall of the second connection pipe 203 is provided with a pushing mechanism 3 for pushing the pushing rod 208 to move, the side wall of the inflation pipe 201 is provided with an exhaust assembly 6 for preventing the pressure in the airbag 11 from being too high, the piston 207 moves downwards along the side wall of the fourth connection pipe 206 through the pushing mechanism 3, meanwhile, the third spring 303 contracts, at this time, air in the second connection pipe 203 is extruded, the first one-way assembly 4 is opened, the second one-way assembly 5 is closed, at this time, the air in the second connection pipe 203 enters the airbag 11 through the inflation pipe 201 after being extruded, when the pressing block 305 is loosened, the piston 207 moves upwards and resets under the action of the third spring 303, at this time, negative pressure is generated in the second connection pipe 203, the first one-way assembly 4 is closed, the second one-way assembly 5 is opened, at this time, external ventilation passes through the exhaust pipe 905, the fifth connection pipe 904, the exhaust pipe 904, and the exhaust pipe 905, The air inlet pipe 205 and the third connecting pipe 204 enter the second connecting pipe 203, and the pressing block 305 is pressed in a reciprocating manner, so that the air bag 11 is rapidly inflated and then abuts against the side wall of the lens barrel 101, and the rapid installation of the light shield 12 is realized.

The first unidirectional assembly 4 comprises a first filter plate 401 and a first conical sleeve 402 which are fixedly connected in the first connecting pipe 202, the side wall of the first filter plate 401 is fixedly connected with a first round ball 404 through a first spring 403, and the first round ball 404 abuts against the inner side wall of the first conical sleeve 402, when the piston 207 moves downwards, the first round ball 404 does not abut against the inner side wall of the first conical sleeve 402 any more, namely the first unidirectional assembly 4 is opened, when the piston 207 moves upwards, the first round ball 404 keeps abutting against the inner side wall of the first conical sleeve 402, namely the first unidirectional assembly 4 is closed.

The second unidirectional component 5 includes a second filter plate 501 and a second taper sleeve 502 fixedly connected in the third connection pipe 204, the sidewall of the second filter plate 501 is fixedly connected with a second ball 504 through a second spring 503, and the second ball 504 abuts against the inner sidewall of the second taper sleeve 502, when the piston 207 moves downwards, the second ball 504 abuts against the inner sidewall of the second taper sleeve 502, that is, the second unidirectional component 5 is closed, when the piston 207 moves upwards, the second ball 504 abuts against the inner sidewall of the second taper sleeve 502, that is, the second unidirectional component 5 is opened.

Pushing mechanism 3 includes the first T-shaped guide rod 301 that fixed connection set up at two symmetries of second connecting pipe 203 lateral wall, and the fixed cover of the lateral wall of each first T-shaped guide rod 301 is equipped with solid fixed ring 302, the lateral wall cover of first T-shaped guide rod 301 is equipped with sliding block 304, and the last lateral wall fixedly connected with of sliding block 304 presses the briquetting 305, the lateral wall cover of each first T-shaped guide rod 301 is equipped with third spring 303, press briquetting 305, drive piston 207 along the lateral wall downstream of fourth connecting pipe 206 through catch bar 208, and simultaneously, third spring 303 contracts, when loosening and pressing briquetting 305, piston 207 moves up under the effect of third spring 303 and resets.

The exhaust component 6 comprises an exhaust pipe 601 fixedly connected to the side wall of the inflation pipe 201, a third conical sleeve 603 is fixedly connected to the interior of the exhaust pipe 601, a third filter plate 602 is connected to the interior of the exhaust pipe 601 through a moving mechanism 7, a third ball 605 is fixedly connected to the side wall of the third filter plate 602 through a fourth spring 604, the third ball 605 abuts against the inner side wall of the third conical sleeve 603, when the pressure in the airbag 11 is large, the third ball 605 is pushed to move, so that the third ball 605 does not abut against the inner side wall of the third conical sleeve 603 any more, at the moment, air in the inflation pipe 201 is exhausted through the exhaust pipe 601, and damage to the camera body 1 caused by overlarge pressure in the airbag 11 is avoided.

The moving mechanism 7 includes two symmetrically-arranged supporting blocks 701 fixedly connected to the inner side wall of the exhaust pipe 601, a guide rod 702 is fixedly connected to the side wall of one of the supporting blocks 701, a fixing pipe 703 is sleeved on the side wall of the guide rod 702, the other end of the fixing pipe 703 is fixed to the side wall of the third filter plate 602, a threaded sleeve 704 is fixedly connected to the side wall of the third filter plate 602, a threaded rod 705 is in threaded connection with the threaded sleeve 704, the other end of the threaded rod 705 is rotatably connected to the side wall of the other supporting block 701, the threaded rod 705 is driven to rotate through a driving mechanism 8, the threaded rod 705 is driven to rotate through the driving mechanism 8, and therefore the third filter plate 602 moves, namely the compression amount of the fourth spring 604 is adjusted, the maximum pressure in the air bag 11 is adjusted, and the using effect is better.

The driving mechanism 8 comprises a rotating shaft 801 rotatably connected to the side wall of the exhaust pipe 601, a poke rod 804 is fixedly connected to one end of the rotating shaft 801, a first bevel gear 802 is fixedly connected to the other end of the rotating shaft 801, a second bevel gear 803 is fixedly connected to one end of the threaded rod 705, the second bevel gear 803 is meshed with the first bevel gear 802, a scale mark 805 is arranged on the outer side wall of the exhaust pipe 601, the poke rod 804 is poked, the rotating shaft 801 rotates to drive the first bevel gear 802 to rotate, and then the second bevel gear 803 and the rotating shaft 801 are driven to rotate.

The air blowing mechanism 9 comprises a plurality of through holes 901 arranged in an array in the inner side wall of the light shield 12, the outer side wall of the light shield 12 is fixedly sleeved with a fixing cover 902 arranged in a ring shape, the through holes 901 are communicated with the inside of the fixing cover 902, the other end of the exhaust pipe 601 is fixed with the side wall of the fixing cover 902, the side wall of the fixing cover 902 is fixedly connected with a fixing block 903, the other end of the air inlet pipe 205 penetrates through the side wall of the fixing block 903 and is fixedly connected with a fifth connecting pipe 904, the other end of the fifth connecting pipe 904 is fixedly connected with an exhaust pipe 905 arranged obliquely downwards, when the lens 102 needs to be blown and cleaned, the pressing block 305 is pressed to and fro to continue to suck air through the exhaust pipe 905, because the pressure in the airbag 11 meets the requirement, when the air is inflated continuously, the air is discharged through the exhaust pipe 601, the discharged air enters the fixing cover 902 and is sprayed on the surface of the lens 102 through the through holes 901, the realization is blown the clearance to the impurity on camera lens 102 surface, and the clearance is more convenient, meanwhile, has adsorption effect when exhaust tube 905 bleeds, is convenient for take out the impurity after the clearance from lens hood 12 for the clearance to impurity is more thorough, the effect is better.

The air release mechanism 10 includes a sixth connecting pipe 1001 fixedly inserted in the side wall of the light shield 12, and the other end of the sixth connecting pipe 1001 is fixedly connected with a work cover 1002, the work cover 1002 is far away from a lateral wall fixedly connected with air release pipe 1003 of the sixth connecting pipe 1001, and a sealing plate 1004 is inserted in the work cover 1002, the sealing plate 1004 is connected with the lateral wall of the work cover 1002 through a reset mechanism 13, and a round hole 1005 is opened in the lateral wall of the sealing plate 1004, when the light shield 12 needs to be detached or moved, the sealing plate 1004 is pressed, so that the round hole 1005, the sixth connecting pipe 1001 and the air release pipe 1003 coincide, at this time, air in the airbag 11 is discharged through the air release pipe 1003.

The reset mechanism 13 includes two first connecting blocks 1301 that are symmetrically arranged and fixedly connected to the side wall of the working cover 1002, a second T-shaped guide rod 1302 is inserted into the side wall of each first connecting block 1301, two second connecting blocks 1303 that are symmetrically arranged and fixedly connected to the upper end of each second T-shaped guide rod 1302, the second connecting blocks 1303 are fixed to the side wall of the sealing plate 1004, and a fifth spring 1304 is sleeved on the side wall of each second T-shaped guide rod 1302, so as to guide and reset the movement of the sealing plate 1004.

The working principle is as follows: when the lens is used, firstly, the light shield 12 is sleeved on the lens barrel 101, then, the pressing block 305 is pressed, the piston 207 is driven by the push rod 208 to move downwards along the side wall of the fourth connecting pipe 206, meanwhile, the third spring 303 contracts, at this time, air in the second connecting pipe 203 is extruded, the first one-way component 4 is opened, the second one-way component 5 is closed, at this time, the air in the second connecting pipe 203 is extruded and enters the air bag 11 through the inflating pipe 201, when the pressing block 305 is released, the piston 207 moves upwards under the action of the third spring 303 to reset, at this time, negative pressure is generated in the second connecting pipe 203, at this time, the first one-way component 4 is closed, the second one-way component 5 is opened, at this time, external ventilation enters the second connecting pipe 203 after passing through the air exhaust pipe 905, the fifth connecting pipe 904, the air inlet pipe 205 and the third connecting pipe 204, the pressing block 305 is pressed in a reciprocating manner, so that the air bag 11 can be abutted against the side wall of the lens barrel 101 after being rapidly expanded, rapid installation of the lens hood 12 is realized, when the lens hood 12 needs to be disassembled, the air bag 11 only needs to be deflated through the deflation mechanism 10, the disassembly is also convenient, meanwhile, the extension length of the lens hood 12 is convenient to adjust, the air bag 11 can be ensured to be abutted against the side wall of the lens 102 for realizing the installation, in addition, the air bag 11 has a good buffering effect, when an external force touches the lens hood 12, the buffering protection effect can be realized, and the damage to the lens hood 12 and the camera body 1 is avoided;

when the pressure in the air bag 11 is high, the third round ball 605 is pushed to move, so that the third round ball 605 is not abutted against the inner side wall of the third conical sleeve 603 any more, at the moment, air in the inflation tube 201 is exhausted through the exhaust tube 601, damage to the camera body 1 caused by the high pressure in the air bag 11 is avoided, in addition, the third filter plate 602 can be moved through the moving mechanism 7, namely, the compression amount of the fourth spring 604 is adjusted, further, the maximum pressure in the air bag 11 is adjusted, and the using effect is good;

and, when needing to blow and clear up lens 102, press the pressing block 305 reciprocally, continue to bleed through exhaust tube 905, because the pressure in gasbag 11 meets the requirements, when continuing to inflate, the air can be discharged through blast pipe 601, the air of exhaust gets into in the fixed cover 902, and, spray on the surface of lens 102 through-hole 901, realize the clearance of blowing to the impurity on lens 102 surface, it is more convenient to clear up, meanwhile, exhaust tube 905 has the adsorption effect when bleeding, be convenient for take the impurity after clearing up out from light shield 12, make the clearance to impurity more thorough, the effect is better.

Claims

1. The utility model provides a shade of art photographic camera lens department, includes camera body (1) and lens hood (12), camera body (1) includes lens cone (101) and camera lens (102), and lens hood (12) can dismantle with lens cone (101) and be connected its characterized in that: the side wall of the lens barrel (101) is sleeved with the light shield (12), the annular air bag (11) is fixedly inserted into the inner side wall of the light shield (12), the outer side wall of the light shield (12) is provided with an air charging mechanism (2) for charging the air bag (11), the outer side wall of the light shield (12) is provided with an air discharging mechanism (10) for discharging air to the air bag (11), and the side wall of the light shield (12) is provided with an air blowing mechanism (9) for blowing and cleaning the lens (102);

the inflation mechanism (2) comprises an inflation tube (201) fixedly inserted into the side wall of the light shield (12), a pressure gauge (209) is fixedly connected to the side wall of the inflation tube (201), one end of the inflation tube (201) is fixed to the side wall of the air bag (11), the other end of the inflation tube (201) is fixedly connected with a first connecting tube (202), a first one-way assembly (4) is arranged in the first connecting tube (202), the other end of the first connecting tube (202) is fixedly connected with a second connecting tube (203), the other end of the second connecting tube (203) is fixedly connected with a third connecting tube (204), a second one-way assembly (5) is arranged in the third connecting tube (204), the other end of the third connecting tube (204) is fixedly connected with an air inlet tube (205), the side wall of the second connecting tube (203) is fixedly connected with a fourth connecting tube (206), and a piston (207) is slidably connected with the fourth connecting tube (206), and the upper end of the piston (207) is fixedly connected with a push rod (208), the upper end of the push rod (208) penetrates through the top of the fourth connecting pipe (206) to be arranged, the side wall of the second connecting pipe (203) is provided with a pushing mechanism (3) for pushing the push rod (208) to move, and the side wall of the inflation pipe (201) is provided with an exhaust assembly (6) for avoiding overlarge pressure in the airbag (11).

2. A shading device at a lens of an art photographic camera according to claim 1, wherein: the first one-way assembly (4) comprises a first filter plate (401) and a first conical sleeve (402), the first filter plate (401) is fixedly connected into the first connecting pipe (202), the side wall of the first filter plate (401) is fixedly connected with a first round ball (404) through a first spring (403), and the first round ball (404) is abutted to the inner side wall of the first conical sleeve (402).

3. A shading device at a lens of an art photographic camera according to claim 1, wherein: the second one-way component (5) comprises a second filter plate (501) and a second conical sleeve (502) which are fixedly connected in a third connecting pipe (204), the side wall of the second filter plate (501) is fixedly connected with a second round ball (504) through a second spring (503), and the second round ball (504) is abutted to the inner side wall of the second conical sleeve (502).

4. A shading device at a lens of an art photographic camera according to claim 1, wherein: pushing mechanism (3) include first T shape guide arm (301) that fixed connection set up at two symmetries of second connecting pipe (203) lateral wall, and the lateral wall fixed cover of each first T shape guide arm (301) is equipped with solid fixed ring (302), the lateral wall cover of first T shape guide arm (301) is equipped with sliding block (304), and the last lateral wall fixedly connected with of sliding block (304) presses briquetting (305), each the lateral wall cover of first T shape guide arm (301) is equipped with third spring (303).

5. A light blocking device at a lens of an art photographic camera according to claim 1, wherein: exhaust subassembly (6) are including exhaust pipe (601) of fixed connection at gas tube (201) lateral wall, and fixedly connected with third toper cover (603) in exhaust pipe (601), be connected with third filter (602) through moving mechanism (7) in exhaust pipe (601), and the lateral wall of third filter (602) passes through fourth spring (604) fixedly connected with third ball (605), third ball (605) offsets with the inside wall of third toper cover (603).

6. A light blocking device at a lens of an art photographic camera according to claim 5, wherein: moving mechanism (7) are including supporting shoe (701) that two symmetries of fixed connection in blast pipe (601) inside wall set up, and lateral wall fixedly connected with guide bar (702) of one of them supporting shoe (701), the lateral wall cover of guide bar (702) is equipped with fixed pipe (703), and the other end of fixed pipe (703) is fixed with the lateral wall of third filter (602), the lateral wall fixedly connected with thread bush (704) of third filter (602), and thread bush (704) female connection has threaded rod (705), the other end of threaded rod (705) is rotated with the lateral wall of another supporting shoe (701) and is connected, and the rotation of threaded rod (705) drives through actuating mechanism (8).

7. A shading device at a lens of an art photographic camera according to claim 6, wherein: actuating mechanism (8) are including rotating pivot (801) of connecting at blast pipe (601) lateral wall, the one end fixedly connected with poker rod (804) of pivot (801), and the first bevel gear (802) of the other end fixedly connected with of pivot (801), the one end fixedly connected with second bevel gear (803) of threaded rod (705), and second bevel gear (803) and first bevel gear (802) meshing setting, the lateral wall of blast pipe (601) is provided with scale mark (805).

8. A light blocking device at a lens of an art photographic camera according to claim 5, wherein: blow mechanism (9) including offering through-hole (901) that set up at a plurality of arrays of lens hood (12) inside wall, the fixed cover of the outside wall of lens hood (12) is equipped with fixed cover (902) that the annular set up, and the inside intercommunication of through-hole (901) and fixed cover (902), the other end of blast pipe (601) is fixed with the lateral wall of fixed cover (902), and the lateral wall fixedly connected with fixed block (903) of fixed cover (902), the other end of intake pipe (205) runs through lateral wall and the fixedly connected with fifth connecting pipe (904) of fixed block (903), and the exhaust tube (905) that the other end fixedly connected with slope of fifth connecting pipe (904) set up downwards.

9. A shading device at a lens of an art photographic camera according to claim 1, wherein: run flat mechanism (10) including fixed the inserting sixth connecting pipe (1001) of establishing at lens hood (12) lateral wall, and the other end fixedly connected with work cover (1002) of sixth connecting pipe (1001), the lateral wall fixedly connected with who keeps away from sixth connecting pipe (1001) in work cover (1002) loses flat pipe (1003), and work cover (1002) interpolation is equipped with closing plate (1004), closing plate (1004) are connected through the lateral wall of canceling release mechanical system (13) with work cover (1002), and round hole (1005) have been seted up to the lateral wall of closing plate (1004).

10. A light blocking device at a lens of an art photographic camera according to claim 9, wherein: the reset mechanism (13) comprises two first connecting blocks (1301) which are fixedly connected to the side wall of the working cover (1002) and symmetrically arranged, a second T-shaped guide rod (1302) is inserted into the side wall of each first connecting block (1301), two second connecting blocks (1303) which are symmetrically arranged are fixedly connected to the upper end of each second T-shaped guide rod (1302), the second connecting blocks (1303) are fixed to the side wall of the sealing plate (1004), and a fifth spring (1304) is sleeved on the side wall of each second T-shaped guide rod (1302).