Impact and vibration resistant aperture structure

Abstract

An impact and vibration resistant aperture structure comprises an aperture supporting seat, an aperture blade and an adjusting structure, and the aperture supporting seat is provided with a light through hole, a first rotating shaft and a second rotating shaft; the adjusting structure comprises an adjusting rocking handle, a driving structure and a rotating limiting groove; wherein the adjusting rocking handle is rotationally connected to the first rotating shaft, and the adjusting rocking handle is provided with a blade driving shaft for driving the aperture blade to rotate; one end of the aperture blade is connected to the blade driving shaft, the other end is connected to the second rotating shaft, and the driving structure drives the aperture blade to rotate around the second rotating shaft; the blade driving shaft is connected into the rotation limiting groove, the axis connecting line of the first rotating shaft and the blade driving shaft forms a first connecting line L1, the axis connecting line of the second rotating shaft and the blade driving shaft forms a second connecting line L2, the first connecting line L1 and the second connecting line L2 form an included angle alpha, and the included angle alpha is smaller than 90 degrees. And the adjusting rocking handle enters a self-locking state when the driving structure is not electrified, so that the impact resistance and the vibration resistance of the aperture structure are effectively enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of aperture structures, and in particular relates to an aperture structure that is resistant to shock and vibration. Background Art

[0002] With the increasing prevalence of vehicles, traffic accidents are becoming increasingly common when driving at night or in adverse weather conditions such as fog and haze. Infrared night vision technology, with its unique characteristics of sharp contrast between the target and the background and imaging unaffected by light intensity, is being applied to vehicle assisted driving systems as an active safety feature. This helps drivers see the road ahead clearly at night and in low visibility conditions, expanding their field of view and identifying pedestrians ahead. This helps drivers predict road conditions and pedestrian locations, preventing potential dangers and reducing the likelihood of accidents. Therefore, the aperture of infrared thermal imaging cameras must be kept open to monitor road conditions in real time.

[0003] When an existing vehicle-mounted infrared thermal imaging camera is driving in a remote area with bumpy roads and complex road conditions, such as off-road roads, or when it passes over speed bumps, the blades of the aperture structure in the vehicle-mounted infrared thermal imaging camera often close without human control due to vibration and / or external impact, rendering the infrared imaging function of the vehicle-mounted infrared thermal imaging camera ineffective. This makes the car prone to traffic accidents at night or in scenes with poor visibility such as fog and haze. Therefore, the present invention proposes a new solution to the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an aperture structure that is resistant to impact and vibration, and adopts a self-locking structural design within a certain angle range, thereby achieving the effect of improving the stability of the aperture structure entering the self-locking state when it is normally open, and enhancing the impact resistance and vibration resistance of the aperture structure.

[0005] Based on this, the present invention provides an aperture structure that is resistant to shock and vibration, comprising: An aperture support seat, wherein the aperture support seat is provided with a light-through hole, a first rotation axis, and a second rotation axis; Aperture blades, the aperture blades being used to rotate and block the light hole; an adjusting structure, the adjusting structure comprising an adjusting crank for driving the aperture blades to rotate, a driving structure for driving the adjusting crank to rotate, and a rotation limiting groove for limiting the adjusting crank; In which, the adjustment crank is rotatably connected to the first rotating shaft, and the adjustment crank is provided with a blade drive shaft that drives the aperture blade to rotate; one end of the aperture blade is connected to the blade drive shaft, and the other end is connected to the second rotating shaft, and the driving structure drives the aperture blade to rotate around the second rotating shaft; the blade drive shaft is connected in the rotation limit groove, and the axis line connecting the first rotating shaft and the blade drive shaft forms a first connecting line L1, and the axis line connecting the second rotating shaft and the blade drive shaft forms a second connecting line L2, the first connecting line L1 and the second connecting line L2 form an angle α, and the angle α is less than 90°, and the adjustment crank enters a self-locking state when the driving structure is not powered.

[0006] In the above-mentioned impact- and vibration-resistant aperture structure, the adjustment structure further includes a rotation limiting member, the rotation limiting member is connected to the aperture support seat, and the rotation limiting groove is provided on the rotation limiting member.

[0007] As described above, in an aperture structure that is resistant to impact and vibration, the adjustment handle is made of magnet, and the driving structure includes a driving iron core, which is provided with a first driving part and a second driving part. The first driving part and the second driving part are relatively arranged on both sides of the adjustment handle to drive the adjustment handle to rotate.

[0008] As described above, an aperture structure that is resistant to impact and vibration, the aperture blades are provided with a first blade connecting hole and a second blade connecting hole, the first blade connecting hole is a slot-type hole design, and the second blade connecting hole is connected to the second rotating shaft; the first blade connecting hole is connected to the blade driving shaft, and the blade driving shaft slides along the first blade connecting hole slot to drive the aperture blades to rotate.

[0009] As described above, an aperture structure that is resistant to impact and vibration is provided, wherein the aperture support seat is provided with an inner support seat, the light-through hole, the first rotating shaft, and the second rotating shaft are provided on the inner support seat, and the rotation limiter is connected to the inner support seat to limit the aperture blades; a first protrusion is provided outside the second blade connecting hole, and the first protrusion abuts against the inner support seat to form a rotation gap, and the rotation gap is used for the aperture blades to rotate without contact with the light-through hole.

[0010] As described above, the aperture structure resistant to shock and vibration, the adjustment structure further includes a rotation stabilizing member for keeping the adjustment handle stable, the rotation stabilizing member is sleeved outside the first rotation axis and is engaged with the adjustment handle for limiting position.

[0011] The aperture structure that is resistant to impact and vibration as described above also includes an FPC structure for connecting to a power supply. The driving structure also includes a driving coil for generating a magnetic field and a winding component for insulating the driving iron core, and the winding component is sleeved on the outside of the driving iron core; the driving coil is sleeved on the outside of the winding component and is connected to the FPC structure to generate magnetic force when the power is turned on.

[0012] In the above-mentioned impact- and vibration-resistant aperture structure, the inner support seat is further provided with an FPC mounting position, and the FPC structure is connected to the FPC mounting position for fastening.

[0013] As described above, in an aperture structure that is resistant to impact and vibration, the inner support seat is also provided with a first limiting protrusion and a second limiting protrusion for limiting the maximum rotation range of the aperture blades. The first limiting protrusion and the second limiting protrusion are respectively provided in the longitudinal direction and the transverse direction of the light-through hole to limit the aperture blades.

[0014] As described above, in the impact- and vibration-resistant aperture structure, the inner support seat is further provided with a third limiting protrusion and a fourth limiting protrusion for limiting the maximum rotation range of the adjustment crank, and the third limiting protrusion and the fourth limiting protrusion are relatively arranged on both sides of the first rotation axis.

[0015] The beneficial effects of the present invention are: This solution adopts a self-locking structural design within a certain angle range, a first rotating shaft and a second rotating shaft are provided on the aperture support seat, and a blade driving shaft is provided on the adjusting crank, the adjusting crank is rotatably connected to the first rotating shaft, one end of the aperture blade is connected to the blade driving shaft, the other end of the aperture blade is connected to the second rotating shaft, and the blade driving shaft is connected to the rotation limit groove, when the power is turned on, the driving structure drives the adjusting crank to rotate along the rotation limit groove, thereby driving the aperture blade to block or open the light hole; when the power is turned off, the axis connecting the first rotating shaft and the blade driving shaft forms a first connecting line L1, the second rotating shaft and the blade driving shaft are connected. The axis connecting line forms a second connecting line L2, and an angle α is formed by the first connecting line L1 and the second connecting line L2. The angle α is controlled within the range of α<90°, so that when the aperture structure is installed on the automobile, the blade drive shaft abuts against the rotation limit groove and cooperates with the first rotation axis to limit the rotation of the adjustment crank, and the aperture blades are supported by the blade drive shaft and the second rotation axis, so that the aperture blades enter a self-locking state through dual-axis limiting, preventing the aperture blades from resetting under vibration and / or external impact, thereby achieving the effect of improving the stability of the aperture structure entering the self-locking state when normally open, and enhancing the impact resistance and vibration resistance of the aperture structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic structural diagram of the aperture blades closed according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the aperture blades opened according to an embodiment of the present invention; Figure 3 To correspond Figure 2 Schematic diagram of the structure with some structures hidden; Figure 4 To correspond Figure 1 Schematic diagram of the structure with some structures hidden; Figure 5 To correspond Figure 4 A magnified view of the structure of part A; Figure 6 To correspond Figure 4 Structural diagram of the other direction; Figure 7 To correspond Figure 6 BB structure cross-sectional view; Figure 8 This is an exploded view of the structure of the embodiment of the present invention with the aperture blades closed; Figure 9 To correspond Figure 8 A magnified view of the C-section structure; Figure 10 To correspond Figure 8 Structural diagram of the other direction; Figure 11 Schematic diagram of the structure of the support base in an embodiment of the present invention.

[0018] In the figure: 1- aperture support seat, 11- inner support seat, 1101- first positioning column, 1102- second positioning column, 111- light hole, 112- first rotation axis, 113- second rotation axis, 1141- first FPC positioning protrusion, 1142- second FPC positioning protrusion, 1143- FPC card hole, 1144- FPC card slot, 115- first limiting protrusion, 1151- blade plane buffer end, 116- second limiting protrusion, 1161- blade inclined surface buffer end, 117- third limiting protrusion, 118- fourth limiting protrusion, 119- mounting buckle, 12- protective shell, 121- buckle hole; 2- aperture blade, 21- first blade connecting hole, 22- second blade Connecting hole, 23-first protrusion, 24-blade plane abutment end, 25-blade inclined abutment end; 31-adjusting crank, 311-blade drive shaft, 312-crank connecting shaft hole, 313-crank limiting protrusion, 314-crank limiting card end, 321-driving iron core, 3211-first driving part, 3212-second driving part, 322-driving coil, 323-winding part, 33-rotation limiting part, 331-rotation limiting groove, 332-supporting stabilizing column, 333-first positioning mounting hole, 334-second positioning mounting hole, 34-rotation stabilizing part, 341-crank mounting hole, 342-crank limiting card slot, 343-inclined connecting part; 4-FPC structure; 5-glue. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] like Figures 1 to 11As shown, an embodiment of the present invention provides an aperture structure that is resistant to shock and vibration, including: an aperture support seat 1, an aperture blade 2, and an adjustment structure. The aperture support seat 1 is provided with a light-through hole 111 for infrared detector detection imaging, a first rotating shaft 112, and a second rotating shaft 113. The aperture blade 2 is used to rotate to block the light-through hole 111. The adjustment structure includes an adjustment crank 31 for driving the aperture blade 2 to rotate, a driving structure for driving the adjustment crank 31 to rotate, and a rotation limiting groove 331 for limiting the adjustment crank 31. The adjustment crank 31 is rotatably connected to the first rotating shaft 112, and the adjustment crank 31 is provided with a rotation groove for driving the aperture blade 2 to rotate. Blade drive shaft 311; one end of the aperture blade 2 is connected to the blade drive shaft 311, and the other end is connected to the second rotating shaft 113, and the driving structure drives the aperture blade 2 to rotate around the second rotating shaft 113; the blade drive shaft 311 is slidably connected in the rotation limit groove 331, and the axis line connecting the first rotating shaft 112 and the blade drive shaft 311 forms a first connecting line L1, and the axis line connecting the second rotating shaft 113 and the blade drive shaft 311 forms a second connecting line L2, and the first connecting line L1 and the second connecting line L2 form an angle α, and the angle α is less than 90°. The adjustment crank 31 enters a self-locking state when the driving structure is not powered.

[0021] Preferably, in an embodiment of the present invention, when the aperture structure is installed on a car and the power is cut off, the blade drive shaft 311 is subjected to the gravity of the aperture blade 2, so that the blade drive shaft 311 abuts against the rotation limit groove 331 and cooperates with the first rotation shaft 112 to limit the rotation of the adjustment crank 31, and the blade drive shaft 311 cooperates with the second rotation shaft 113 to provide an upward force to support the aperture blade, so that the aperture blade 2 enters a self-locking state through dual-axis limiting, preventing the aperture blade from resetting under vibration and / or external impact, thereby improving the stability of the aperture structure entering the self-locking state when it is normally open, and enhancing the impact resistance and vibration resistance of the aperture structure.

[0022] Specifically, the adjustment structure further includes a rotation limiting member 33 , the rotation limiting member 33 is connected to the aperture support seat 1 , and the rotation limiting groove 331 is provided on the rotation limiting member 33 .

[0023] Preferably, the rotation limit member 33 is detachably connected to the aperture support seat 1 through a threaded connection to improve the convenience of installing the aperture structure; at the same time, the rotation limit groove 331 provided on the rotation limit member 33 is conducive to clamping the blade drive shaft 311 into the rotation limit groove 331, so that the blade drive shaft 311 is limited by the trajectory of the rotation limit groove 331, and its sliding range is forced to be controlled within a predetermined range; when vibration or impact force acts on the adjustment crank 31, the inner wall of the rotation limit groove 331 contacts the blade drive shaft 311 to generate a reaction force, so as to directly prevent the expansion of the angle α between the first connecting line L1 and the second connecting line L2 through mechanical interference, thereby enhancing the stability of the aperture structure.

[0024] Furthermore, the adjusting crank 31 is made of magnet, and the driving structure includes a driving iron core 321. The driving iron core 321 is provided with a first driving part 3211 and a second driving part 3212. The first driving part 3211 and the second driving part 3212 are relatively arranged on both sides of the adjusting crank 31 to drive the adjusting crank 31 to rotate.

[0025] Preferably, the driving iron core 321 is designed as a U-shaped structure, and the first driving part 3211 and the second driving part 3212 are respectively arranged at the ends of the driving iron core 321, and the first driving part 3211 and the second driving part 3212 are relatively arranged on both sides of the adjusting handle 31, so that after the driving structure is energized, the driving iron core 321 can drive the adjusting handle 31 to rotate forward or reverse, thereby driving the aperture blades 2 to open or block the light hole 111 to improve the convenience of aperture structure adjustment; at the same time, by using electromagnetic drive, the overall layout of the aperture structure is optimized, and the volume of the aperture structure is effectively reduced.

[0026] Furthermore, the aperture blade 2 is provided with a first blade connecting hole 21 and a second blade connecting hole 22, the first blade connecting hole 21 is a slot-type hole design, and the second blade connecting hole 22 is connected to the second rotating shaft 113; the first blade connecting hole 21 is connected to the blade driving shaft 311, and the blade driving shaft 311 slides along the groove of the first blade connecting hole 21 to drive the aperture blade 2 to rotate.

[0027] Preferably, the first blade connection hole 21 is a slot-shaped hole, allowing the blade drive shaft 311 to slide axially within the slot. When an external impact is transmitted to the aperture blades 2, the blade drive shaft 311 can generate a slight displacement along the slot to buffer vibration energy and avoid stress concentration caused by a rigid connection. The second blade connection hole 22 is rotatably connected to the second rotation axis 113 to form a rotational fulcrum, ensuring that the aperture blades 2 always rotate about the second rotation axis 113. The second rotation axis 113 also provides a reaction force to the aperture blades 2, enhancing the stability of the self-locking aperture structure. In this embodiment of the present invention, the sliding trajectory of the blade drive shaft 311 within the slot and the rotational fulcrum of the second rotation axis 113 form a composite motion constraint, ensuring the precise controllability of the rotation angle of the aperture blades 2 while absorbing vibration shock through the slot. The dual structure synergistically prevents displacement of the aperture blades 2 in the non-driven state, effectively enhancing the impact and vibration resistance of the aperture structure.

[0028] Furthermore, the aperture support seat 1 is provided with an inner support seat 11, the light-through hole 111, the first rotating shaft 112, and the second rotating shaft 113 are provided on the inner support seat 11, and the rotation limiter 33 is connected to the inner support seat 11 to limit the aperture blade 2; the second blade connecting hole 22 is provided with a first protrusion 23 outside, and the first protrusion 23 abuts against the inner support seat 11 to form a rotation gap, and the rotation gap is used for the aperture blade 2 to rotate without contact with the light-through hole 111.

[0029] Preferably, the inner support seat 11 is also provided with a first positioning column 1101 and a second positioning column 1102, and the rotation limiter 33 is also provided with multiple supporting and stabilizing columns 332, a first positioning mounting hole 333, and a second positioning mounting hole 334. The first positioning mounting hole 333 and the second positioning mounting hole 334 are respectively connected to the first positioning column 1101 and the second positioning column 1102, so that the rotation limiter 33 is positioned and connected to the inner support seat 11, and the multiple supporting and stabilizing columns 332 are abutted against the inner support seat 11 to enhance the limiting stability of the rotation limiter 33; in an embodiment of the present invention, after the rotation limiter 33 is connected to the inner support seat 11, in order to enhance the stability of the aperture structure, glue 5 can be used to further fasten the rotation limiter 33 to the inner support seat 11 to ensure the stability of the aperture structure during use.

[0030] Preferably, the first protrusion 23 forms a contact point on the outside of the second blade connecting hole 22, and the rotation gap generated by the abutment of the first protrusion 23 and the inner support seat 11 constitutes a physical isolation layer, so that the aperture blade 2 always maintains a constant gap with the edge of the light-through hole when rotating around the second rotation axis 113, so as to ensure that the aperture blade 2 will not rub against the light-through hole 111 during the process of adjusting the amount of light passing, so that the aperture structure will not drop dust due to the friction between the aperture blade 2 and the light-through hole 111, which will contaminate the infrared detector and affect the imaging quality, thereby enhancing the accuracy of information collection by the infrared detector; at the same time, through the rotation gap, the aperture blade 2 will not collide with the light-through hole 111 under the action of vibration and / or external impact, effectively avoiding the falling of dust due to collision and extending the service life of the aperture blade 2.

[0031] Furthermore, the adjustment structure further includes a rotation stabilizing member 34 for maintaining the stability of the adjustment crank 31 . The rotation stabilizing member 34 is sleeved outside the first rotating shaft 112 and is engaged with the adjustment crank 31 for position limiting.

[0032] Preferably, the adjusting crank 31 is further provided with a crank connecting shaft hole 312, a crank limiting protrusion 313, and a crank limiting clamping end 314; the rotation stabilizing member 34 is provided with a crank mounting hole 341, a crank limiting clamping groove 342, and an inclined connection portion 343. The adjusting crank 31 is inserted into the first rotating shaft 112 through the crank connecting shaft hole 312 for rotation limitation; the adjusting crank 31 is inserted into the crank mounting hole 341, and is inserted into the crank limiting clamping groove 342 through the crank limiting protrusion 313, and the crank limiting clamping end 314 abuts against the inclined connection portion 3 43, effectively improving the support stability of the adjusting crank 31 by the rotation stabilizing member 34; and by connecting the adjusting crank 31 to the rotation stabilizing member 34, effectively limiting the lateral movement of the adjusting crank 31, thereby enhancing the adjustment stability of the aperture structure; in an embodiment of the present invention, the rotation stabilizing member 34 is made of elastic material so that the adjusting crank 31 can be stuck into the rotation stabilizing member 34, and the vibration energy generated by the adjusting crank 31 is absorbed by the rotation stabilizing member 34, thereby enhancing the stability of the adjusting crank 31 connected to the first rotating shaft 112.

[0033] An embodiment of the present invention provides an aperture structure that is resistant to shock and vibration, and also includes an FPC structure 4 for connecting to a power supply. The driving structure also includes a driving coil 322 for generating a magnetic field and a winding member 323 for insulating the driving iron core 321. The winding member 323 is sleeved on the outside of the driving iron core 321; the driving coil 322 is sleeved on the outside of the winding member 323 and is connected to the FPC structure 4 to generate magnetic force when the power is turned on; such a design enables the driving iron core 321 to export the magnetic force generated by the driving coil 322 to the first driving part 3211 and the second driving part 3212, thereby driving the adjustment handle 31 to rotate; and by increasing the length of the driving coil 322, the internal space of the aperture structure can be effectively utilized, and at the same time, a stronger magnetic force can be generated.

[0034] Preferably, in order to increase the effective magnetic induction area of ​​the first driving part 3211 and the second driving part 3212, the first driving part 3211 and the second driving part 3212 both adopt an arc-shaped structure design, which effectively improves the driving force of the driving structure on the adjusting handle 31.

[0035] Furthermore, the inner support seat 11 is also provided with an FPC installation position, and the FPC structure 4 is connected to the FPC installation position for fastening.

[0036] In an embodiment of the present invention, the FPC mounting position is provided with a first FPC positioning protrusion 1141, a second FPC positioning protrusion 1142, an FPC card hole 1143, and an FPC card slot 1144. The FPC structure 4 is fastened to the mounting position 114 of the inner support seat 11 of the FPC through the first FPC positioning protrusion 1141, the second FPC positioning protrusion 1142, the FPC card hole 1143, and the FPC card slot 1144; and the FPC structure 4 can be further fastened to the inner support seat 11 by using glue 5 to enhance the overall connection stability of the aperture structure.

[0037] Furthermore, the inner support seat 11 is also provided with a first limiting protrusion 115 and a second limiting protrusion 116 for limiting the maximum rotation range of the aperture blades 2. The first limiting protrusion 115 and the second limiting protrusion 116 are respectively provided in the longitudinal direction and the transverse direction of the light-through hole 111 to limit the aperture blades 2 to ensure that the aperture blades 2 do not exceed the maximum rotation range and cause damage to other components, thereby enhancing the safety of the aperture structure.

[0038] Preferably, the aperture blade 2 is provided with a blade plane abutting end 24 and a blade bevel abutting end 25, the first limiting protrusion 115 is provided with a blade plane buffer end 1151, and the second limiting protrusion 116 is provided with a blade bevel buffer end 1161. The blade plane abutting end 24 and the blade bevel abutting end 25 respectively abut against the blade plane buffer end 1151 and the blade bevel buffer end 1161 to reduce the impact force generated when the aperture blade 2 hits the first limiting protrusion 115 and the second limiting protrusion 116 due to the bumps of the car, thereby extending the service life of the aperture blade 2 and ensuring that the aperture blade 2 will not fail.

[0039] Furthermore, the inner support seat 11 is also provided with a third limiting protrusion 117 and a fourth limiting protrusion 118 for limiting the maximum rotation range of the adjustment crank 31. The third limiting protrusion 117 and the fourth limiting protrusion 118 are relatively arranged on both sides of the first rotating shaft 112.

[0040] Preferably, the third limiting protrusion 117 and the fourth limiting protrusion 118 are both provided with a buffer arc portion adapted to the blade drive shaft 311, so that the third limiting protrusion 117 and the fourth limiting protrusion 118 form a physical blockage on the rotating end of the adjusting crank 31 in the clockwise and counterclockwise directions respectively, so that when the car bumps and causes the adjusting crank 31 to be subjected to impact force, the third limiting protrusion 117 and the fourth limiting protrusion 118 prevent the adjusting crank 31 from exceeding the preset angle range through rigid contact, thereby avoiding the adjustment failure of the adjusting crank 31 due to over-travel rotation, and improving the stability of the aperture structure.

[0041] Preferably, the aperture support seat 1 is also provided with a protective shell 12 for protecting the inner support seat 11, the protective shell 12 is provided with a snap hole 121, and the inner support seat 11 is provided with an installation snap 119; the protective shell 12 is snapped into the installation snap 119 through the snap hole 121 and fastened to the inner support seat 11 to protect the inner support seat 11.

[0042] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An aperture structure resistant to shock and vibration, characterized in that: include: An aperture support seat (1), the aperture support seat (1) being provided with a light-through hole (111), a first rotation axis (112), and a second rotation axis (113); Aperture blades (2), the aperture blades (2) being used to rotate and block the light hole (111); An adjustment structure, the adjustment structure comprising an adjustment handle (31) for driving the aperture blades (2) to rotate, a driving structure for driving the adjustment handle (31) to rotate, and a rotation limiting groove (331) for limiting the position of the adjustment handle (31); The adjusting crank (31) is rotatably connected to the first rotating shaft (112), and the adjusting crank (31) is provided with a blade driving shaft (311) for driving the aperture blade (2) to rotate; one end of the aperture blade (2) is connected to the blade driving shaft (311), and the other end is connected to the second rotating shaft (113); the driving structure drives the aperture blade (2) to rotate around the second rotating shaft (113); the blade driving shaft (311) is connected in the rotation limiting groove (331); a line connecting the axis of the first rotating shaft (112) and the blade driving shaft (311) forms a first connecting line L1; a line connecting the axis of the second rotating shaft (113) and the blade driving shaft (311) forms a second connecting line L2; the first connecting line L1 and the second connecting line L2 form an angle α, and the angle α is less than 90°; the adjusting crank (31) enters a self-locking state when the driving structure is not powered.

2. The shock and vibration resistant aperture structure according to claim 1, characterized in that: The adjustment structure further comprises a rotation limiting member (33), the rotation limiting member (33) being connected to the aperture support seat (1), and the rotation limiting groove (331) being provided on the rotation limiting member (33).

3. The shock and vibration resistant aperture structure according to claim 1, characterized in that: The regulating crank (31) is made of magnet, and the driving structure includes a driving iron core (321). The driving iron core (321) is provided with a first driving portion (3211) and a second driving portion (3212). The first driving portion (3211) and the second driving portion (3212) are relatively arranged on both sides of the regulating crank (31) to drive the regulating crank (31) to rotate.

4. The shock and vibration resistant aperture structure according to claim 2, characterized in that: The aperture blade (2) is provided with a first blade connection hole (21) and a second blade connection hole (22), wherein the first blade connection hole (21) is a slot-shaped hole, and the second blade connection hole (22) is connected to the second rotation shaft (113); the first blade connection hole (21) is connected to the blade drive shaft (311), and the blade drive shaft (311) slides along the slot of the first blade connection hole (21) to drive the aperture blade (2) to rotate.

5. The shock and vibration resistant aperture structure according to claim 4, characterized in that: The aperture support seat (1) is provided with an inner support seat (11); the light-through hole (111), the first rotation axis (112), and the second rotation axis (113) are provided on the inner support seat (11); the rotation limiter (33) is connected to the inner support seat (11) to limit the aperture blade (2); a first protrusion (23) is provided outside the second blade connection hole (22); the first protrusion (23) abuts against the inner support seat (11) to form a rotation gap, and the rotation gap is used for the non-contact rotation of the aperture blade (2) and the light-through hole (111).

6. The shock and vibration resistant aperture structure according to claim 1, characterized in that: The adjustment structure further comprises a rotation stabilizing member (34) for maintaining the stability of the adjustment crank (31); the rotation stabilizing member (34) is sleeved outside the first rotating shaft (112) and is provided for the adjustment crank (31) to be engaged for position limiting.

7. The shock and vibration resistant aperture structure according to claim 5, characterized in that: It also includes an FPC structure (4) for connecting to a power supply, and the driving structure also includes a driving coil (322) for generating a magnetic field, and a winding member (323) for insulating the driving iron core (321), wherein the winding member (323) is sleeved on the outside of the driving iron core (321); the driving coil (322) is sleeved on the outside of the winding member (323), and is connected to the FPC structure (4) to generate magnetic force when the power supply is turned on.

8. The shock and vibration resistant aperture structure according to claim 7, characterized in that: The inner support seat (11) is also provided with an FPC installation position, and the FPC structure (4) is connected to the FPC installation position for fastening.

9. The shock and vibration resistant aperture structure according to claim 5, characterized in that: The inner support seat (11) is further provided with a first limiting protrusion (115) and a second limiting protrusion (116) for limiting the maximum rotation range of the aperture blade (2); the first limiting protrusion (115) and the second limiting protrusion (116) are respectively provided in the longitudinal direction and the transverse direction of the light-through hole (111) to limit the aperture blade (2).

10. The shock and vibration resistant aperture structure according to claim 5, characterized in that: The inner support seat (11) is further provided with a third limiting protrusion (117) and a fourth limiting protrusion (118) for limiting the maximum rotation range of the regulating crank (31); the third limiting protrusion (117) and the fourth limiting protrusion (118) are relatively arranged on both sides of the first rotating shaft (112).

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