Self-locking shutter structure

Abstract

A shutter structure capable of self-locking disclosed by the present invention comprises a shutter body and a shutter blade arranged in the shutter body, the shutter body is provided with a driving assembly and a transmission assembly, and the transmission assembly comprises a shifting piece and a rotating gear in sliding connection with one end of the shifting piece. The transmission assembly is in transmission connection with the driving assembly through a rotating gear, a protrusion is arranged on the rotating gear, a sliding groove is formed in the end, close to the rotating gear, of the shifting piece, and the protrusion slides in the sliding groove; when the shutter blade is opened, the rotating gear rotates to enable the protrusion to be located at one end in the sliding groove, and the protrusion abuts against the sliding groove to limit swinging of the poking piece to form self-locking. Through the design, the self-locking shutter can form self-locking when the shutter body is subjected to external impact force, and the opening or closing state effect is always kept.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a shutter structure capable of self-locking. Background Art

[0002] The shutter is an important structure in the camera. It mainly determines the exposure of the image by controlling the time when light enters the camera sensor or film. The shutter has several shutter blades, and the two states of the shutter blades are open and closed, and are controlled by a solenoid valve.

[0003] But the problem now is that when the shutter is in the open or closed state, and when the battery of the camera is low, the solenoid valve cannot be provided with working current. At this time, the solenoid valve cannot control the shutter blades to open and close. Since the solenoid valve is in the power-off mode, if it encounters external force, the shutter blades will rotate, thereby switching the shutter state. It cannot be self-locked and there is no state retention effect, which reduces the quality of the product and affects the user experience. Summary of the invention

[0004] In order to solve the technical defects raised in the above-mentioned background technology, the purpose of the present invention is to provide a shutter structure capable of self-locking, which can form self-locking when the shutter body is subjected to external impact force and always maintain the open or closed state effect.

[0005] The present invention adopts the following technical solution: A shutter structure capable of self-locking, comprising a shutter body and a shutter blade arranged in the shutter body, the shutter body being provided with a driving assembly and a transmission assembly, the transmission assembly comprising a paddle and a rotating gear slidably connected to one end of the paddle, the other end of the paddle being movably connected to the shutter blade for controlling the opening or closing of the shutter blade, the transmission assembly being transmission-connected to the driving assembly via the rotating gear, the rotating gear being provided with a protrusion, the end of the paddle close to the rotating gear being provided with a sliding groove, the protrusion sliding in the sliding groove; The transmission assembly is driven to drive the driving assembly to rotate between the open position or the closed position, and during the rotation process, the protrusion on the rotating gear slides in the sliding groove as the rotating gear rotates.

[0006] When the shutter blade is located at the open position, the protrusion cooperates with the sliding groove to limit the rebound of the paddle to form self-locking.

[0007] Optionally, when the shutter blade is in the open position, the angle a between the protrusion and the sliding groove is greater than 90 degrees, wherein the angle a is formed by the radial direction of the protrusion and the lower groove edge of the sliding groove, and the radial direction of the protrusion is the direction of the reaction force F generated when the protrusion is subjected to the impact force 1 of the sliding groove when the paddle rebounds.

[0008] Optionally, the driving assembly includes a solenoid valve, a driving gear is extended inside the solenoid valve, and the driving gear is meshed with the rotating gear.

[0009] Optionally, the shutter body also includes a fixed seat, a fixed cover engaged with one side of the fixed seat, and a partition arranged between the fixed seat and the fixed cover, the solenoid valve, rotating gear and paddle are all arranged on the other side of the fixed seat, and the shutter blade is movably arranged between the fixed seat and the partition.

[0010] Optionally, one end of the paddle away from the rotating gear passes through the fixing seat and is movably connected to the shutter blade, so that the paddle moves and the shutter blade is opened or closed under the drive of the solenoid valve.

[0011] Optionally, a movable column is protruding from one end of the paddle that is movably connected to the shutter blade, and a movable hole is opened on the fixed seat at a position corresponding to the axial direction of the movable column. When the paddle swings, the movable column passes through the movable hole to drive the shutter blade to open or close.

[0012] Optionally, a mounting portion is protruding from the fixing seat around the transmission assembly, and a gear box cover is covered on the mounting portion.

[0013] Optionally, a slot is provided at the inner periphery of the surface of the fixing seat that fits the partition, and a buckle is provided at the outer periphery of the partition, and the partition passes through the slot through the buckle and is buckled onto the fixing seat.

[0014] Optionally, a snap-in hole is provided at a peripheral position of the fixing seat, and a snap-in hook is provided at a peripheral position of the fixing cover, and the fixing cover passes through the snap-in hole through the snap-in hook and is snap-connected to the fixing seat.

[0015] Optionally, the solenoid valve is also provided with a wire electrically connected to an external power source, and the wire is arranged in close contact with the fixing seat.

[0016] In summary, the beneficial effects of the present invention are: By arranging a driving component and a transmission component on the shutter body, the transmission component is driven by the driving component to drive the shutter blades to open and close, thereby realizing the automation of opening or closing of the shutter blades; at the same time, by arranging a paddle and a rotating gear, and arranging a protrusion on the rotating gear, and a sliding groove on the paddle, the paddle is sleeved on the protrusion through the sliding groove, and when the rotating gear rotates, the protrusion will move left and right in the sliding groove, thereby being able to drive the paddle to swing, thereby realizing the opening or closing of the shutter blades, further, since the protrusion moves in the sliding groove, when the shutter body is subjected to external impact force, the protrusion will abut against the sliding groove, thereby limiting the swinging of the paddle, thereby realizing self-locking and preventing the shutter blades from switching between the open or closed state, thereby improving the state maintaining effect of the present invention and further improving the user experience.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural diagram of an embodiment of the present invention; Figure 2 is a front view of an embodiment of the present invention; Figure 3 The embodiment of the present invention Figure 2 A magnified image of area A; Figure 4 is a partial enlarged view of an embodiment of the present invention; Figure 5 is an exploded view of an embodiment of the present invention; Figure 6 2 is a structural diagram of a plectrum according to an embodiment of the present invention.

[0019] Description of reference numerals in the figures: 1. Shutter body; 11. Fixing seat; 112. Movable hole; 113. Mounting part; 114. Card slot; 115. Card hole; 12. Fixing cover; 121. Card hook; 13. Partition plate; 131. Card buckle; 14. Gear box cover; 2. Shutter blade; 3. Driving assembly; 31. Solenoid valve; 32. Driving gear; 33. Wire; 4. Transmission assembly; 41. Paddle; 411. Sliding groove; 412. Movable column; 42. Rotating gear; 421. Protrusion. DETAILED DESCRIPTION

[0020] In order to make the content of the present invention more clearly understood, the present invention is further described below based on specific embodiments in conjunction with the accompanying drawings.

[0021] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0022] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] like Figures 1 to 5 As shown, the embodiment of the present application provides a shutter structure capable of self-locking, comprising a shutter body 1 and a shutter blade 2 arranged in the shutter body 1, wherein the shutter body 1 is provided with a driving assembly 3 and a transmission assembly 4, wherein the transmission assembly 4 comprises a paddle 41 and a rotating gear 42 slidably connected to one end of the paddle 41, wherein the other end of the paddle 41 is movably connected to the shutter blade 2 for controlling the opening or closing of the shutter blade 2, wherein the transmission assembly 4 is transmission-connected to the driving assembly 3 via the rotating gear 42, wherein a protrusion 421 is provided on the rotating gear 42, wherein a sliding groove 411 is provided at one end of the paddle 41 close to the rotating gear 42, wherein the protrusion 421 slides in the sliding groove 411; wherein the driving assembly 3 is driven to rotate between the open position and the closed position by driving the transmission assembly 4, and during the rotation process, the protrusion 421 on the rotating gear 42 slides in the sliding groove 411 as the rotating gear 42 rotates, and when the shutter blade 2 is in the open position, the protrusion 421 Cooperating with the sliding slot 411 to limit the rebound of the paddle 41 to form self-locking.

[0024] In the embodiment of the present application, the shutter blade 2 can be provided in plurality, each shutter blade 2 can be in the shape of a half-moon arc, the shutter body 1 is in the shape of a circular ring, the shutter blades 2 are sequentially stacked and arranged in the shutter body 1, and the shutter blades 2 can be opened and closed in the shutter body 1, so as to adjust the amount and time of light entering the camera. By controlling the opening and closing of the shutter blades 2, different exposure effects can be achieved, thereby affecting the brightness and clarity of the photo. The drive assembly 3 can be arranged at the edge of the shutter body 1, the transmission assembly 4 is arranged adjacent to the drive assembly 3 and is connected to the drive assembly 3 through transmission, and then the drive assembly 3 can drive the transmission assembly 4 to exert force on the shutter blade 2 to realize the opening and closing of the shutter. Specifically, the transmission assembly 4 can include a paddle 41 and a rotating gear 42, one end of the paddle 41 is provided with a sliding groove 411 near one end of the rotating gear 42, and the other end of the paddle 41 is movably connected with the shutter blade 2, and the shutter blade 2 is moved by swinging the paddle 41, so as to realize the opening and closing of the shutter blade 2. Furthermore, a protrusion 421 is provided on the rotating gear 42, and one end of the paddle 41 having a sliding groove 411 is sleeved on the protrusion 421. The rotating gear 42 is transmission-connected with the driving assembly 3. The rotating gear 42 is driven by the driving assembly 3. The protrusion 421 can slide in the sliding groove 411, driving the paddle 41 to swing, and then driving the shutter blade 2 to move to realize the opening and closing of the shutter blade 2.

[0025] It should be understood that if Figure 3 As shown, when the shutter blade 2 is opened, the protrusion 421 will be located at the left end of the sliding groove 411, and the protrusion 421 will abut against the sliding groove 411. When the shutter body 1 is impacted by an external force, the paddle 41 will be subjected to a downward impact force T. However, since the protrusion 421 is located at the left end of the sliding groove 411, the impact force T will act on the protrusion 421. At this time, the protrusion 421 will generate a reaction force F to the impact force T, thereby offsetting the impact force. Since the shutter blade 2 is movably connected to the paddle 41, when the paddle 41 restricts swinging, the shutter blade 2 will also be restricted, thereby forming a self-locking state, achieving a state retention effect, and improving the user experience.

[0026] Similarly, when the shutter blade 2 is closed, the protrusion 421 will move to the right side of the sliding groove 411. When the shutter body 1 is also impacted by an external force, the paddle 41 will also be subjected to an impact force T acting on the protrusion 421. At this time, the protrusion 421 will also generate a reaction force F to offset the impact force T. Similarly, a self-locking force is formed between the rotating gear 42 and the paddle 41 to limit the swinging of the shutter blade 2, thereby achieving the effect of keeping the shutter blade 2 in the closed state and preventing dust and other impurities from entering.

[0027] like Figure 4 As shown, when the shutter blade 2 is in the open position, the angle α between the protrusion 421 and the sliding groove 411 is greater than 90 degrees, wherein the angle a is formed by the radial direction of the protrusion 421 and the lower groove edge of the sliding groove 411, and the radial direction of the protrusion 421 is the direction of the reaction force F generated when the protrusion 421 is subjected to the impact force F of the sliding groove 411 when the paddle 41 rebounds.

[0028] In the embodiment of the present application, when the shutter blade 2 is opened, under the rotation of the rotating gear 42, the radial direction of the protrusion 421 forms an angle α with the lower groove edge of the sliding groove 411, and the angle α is greater than 90 degrees; it should be noted that the radial direction of the above-mentioned protrusion 421 is the direction of the reaction force F generated when the protrusion 421 is subjected to the impact force T of the sliding groove 411, that is, the reaction force F received by the protrusion 421 forms an angle α with the lower groove edge of the sliding groove 411.

[0029] Similarly, when the shutter blade 2 is closed, the protrusion 421 will move to the right side of the sliding groove 411. Similarly, the radial direction of the protrusion 421 will form an angle with the upper groove edge of the sliding groove 411, and the angle is also greater than 90 degrees. Then, under the action of external impact force, the protrusion 421 abuts against the sliding groove 411 to limit the swing of the paddle 41 and achieve self-locking, so that the shutter blade 2 can also remain in a closed state when closed, thereby improving the user experience.

[0030] like Figure 3 As shown, the driving assembly 3 includes a solenoid valve 31 , a driving gear 32 is extended inside the solenoid valve 31 , and the driving gear 32 is meshed with the rotating gear 42 .

[0031] In the embodiment of the present application, the above-mentioned driving component 3 may include a solenoid valve 31 and a driving gear 32. The driving gear 32 is extended from the inside of the solenoid valve 31 and meshes with the rotating gear 42. The driving gear 32 drives the transmission gear to rotate under the drive of the solenoid valve 31. Since the protrusion 421 is arranged on the rotating gear 42 and arranged in the sliding groove, the rotating gear 42 drives the protrusion 421 to move in the sliding groove 411, and then drives the paddle 41 to swing to open and close the shutter blade 2.

[0032] like Figure 5 As shown, the shutter body 1 also includes a fixing seat 11, a fixing cover 12 clamped to one side of the fixing seat 11, and a partition 13 arranged between the fixing seat 11 and the fixing cover 12, the solenoid valve 31, the rotating gear 42 and the paddle 41 are all arranged on the other side of the fixing seat 11, and the shutter blade 2 is movably arranged between the fixing seat 11 and the partition 13.

[0033] In the embodiment of the present application, the shutter body 1 may include a fixing seat 11, a partition 13 and a fixing cover 12. The partition 13 is installed between the fixing seat 11 and the fixing cover 12. By providing the partition 13, the shutter blade 2 can be clamped on the partition 13 to prevent the shutter blade 2 from being misplaced when opening and closing. Specifically, the solenoid valve 31, the rotating gear 42 and the paddle 41 are all arranged on the outer side of the fixing seat 11, and the shutter blade 2 is movably arranged between the fixing seat 11 and the partition 13.

[0034] like Figure 3 , Figure 5 As shown, further, one end of the paddle 41 away from the rotating gear 42 passes through the fixing seat 11 and is movably connected to the shutter blade 2, so that the paddle 41 moves and the shutter blade 2 is opened or closed under the drive of the solenoid valve 31.

[0035] In the embodiment of the present application, a cylinder is arranged below the right end of the paddle 41 (the end opposite to the sliding groove 411), and the cylinder passes through the fixing seat 11 and is movably connected to the ends of each shutter blade 2, or can be rotatably connected, so that when the electromagnetic valve 31 drives the rotating gear 42, the paddle 41 drives each shutter blade 2 to move through the movable column 412, thereby realizing the opening or closing of the shutter blade 2. Through the above arrangement, when the shutter body 1 is subjected to impact force, the shutter body 1 can be self-locked, so that the shutter body 1 can always remain in an open or closed state.

[0036] Reference Figure 6 As shown, further, a movable column 412 is protruded from one end of the paddle 41 that is movably connected to the shutter blade 2, and a movable hole 112 is opened on the fixed seat 11 at an axial position corresponding to the movable column 412. When the paddle 41 swings, the movable column 412 passes through the movable hole 112 to drive the shutter blade 2 to open or close.

[0037] In the embodiment of the present application, a movable hole 112 is provided on the fixing seat 11. The position of the movable hole 112 is the position of the swing trajectory of one end of the paddle 41 away from the rotating gear 42. When the paddle 41 swings, the movable column 412 can perform a pendulum motion in the movable hole 112, thereby driving the shutter blade 2 to open or close.

[0038] Reference Figure 1 and Figure 3 As shown, a mounting portion 113 is protruded from the fixing seat 11 around the transmission assembly 4 , and a gear box cover 14 is covered on the mounting portion 113 .

[0039] In the embodiment of the present application, the mounting portion 113 is arranged around the transmission assembly 4, specifically, around the rotating gear 42 and the paddle 41, and presents a "U" shape, and the opening of the mounting portion 113 faces the direction of the solenoid valve 31, so that the driving gear 32 and the rotating gear 42 can be easily engaged, and the gear box cover 14 can be easily installed. By installing the gear box cover 14, the paddle 41 and the rotating gear 42 and other related components can be protected, and other impurities can be prevented from entering and affecting the self-locking retention effect.

[0040] Reference Figure 5 As shown, a slot 114 is provided at the inner periphery of the surface where the fixing seat 11 and the partition plate 13 are in contact, and a buckle 131 is provided at the outer periphery of the partition plate 13 , and the buckle 131 is buckled in the slot 114 .

[0041] In the embodiment of the present application, a card slot 114 is opened at the inner peripheral position of the fixing seat 11, and a buckle 131 can be opened at the outer peripheral position of the partition 13, so that the partition 13 can be snapped into the card slot 114 through the buckle 131, which can prevent the partition 13 from falling off, so that the shutter blade 2 is maintained between the fixing seat 11 and the partition 13, preventing the shutter blade 2 from being unable to open and close when the paddle 41 drives the shutter blade 2.

[0042] like Figure 5 As shown, a clamping hole 115 is provided at the peripheral position of the fixing seat 11 , and a clamping hook is provided at the peripheral position of the fixing cover 12 . The fixing cover 12 is clamped on the fixing seat 11 through the clamping hole 115 via the clamping hook 121 .

[0043] In the embodiment of the present application, a snap-fit ​​hole 115 is provided at the outer peripheral position of the fixing seat 11, and a snap hook 121 is provided at the peripheral position of the fixing cover 12, so that the fixing cover 12 can be snap-fitted to the fixing seat 11 through the snap-fit ​​hole 115. By providing the fixing cover 12, the interior of the shutter body 1 can be protected, and the durability of the present embodiment is improved.

[0044] like Figure 1 As shown, the solenoid valve 31 is also provided with a wire 33 electrically connected to an external power source, and the wire 33 is arranged in close contact with the fixing seat 11 .

[0045] In the embodiment of the present application, a wire 33 is also provided on the solenoid valve 31, and the wire 33 may also be a PCBA connector. By providing the PCBA connector, an external relay, power supply, etc. can control the drive of the solenoid valve 31, thereby realizing the automation of the opening and closing of the shutter blade 2, thereby improving the efficiency of the present embodiment.

[0046] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-locking shutter structure, characterized in that: The invention comprises a shutter body (1) and a shutter blade (2) arranged in the shutter body (1), wherein the shutter body (1) is provided with a driving assembly (3) and a transmission assembly (4), wherein the transmission assembly (4) comprises a paddle (41) and a rotating gear (42) slidably connected to one end of the paddle (41), wherein the other end of the paddle (41) is movably connected to the shutter blade (2) for controlling the opening or closing of the shutter blade (2), wherein the transmission assembly (4) is transmission-connected to the driving assembly (3) via the rotating gear (42), wherein the rotating gear (42) is provided with a protrusion (421), and a sliding groove (411) is provided at one end of the paddle (41) close to the rotating gear (42), wherein the protrusion (421) slides in the sliding groove (411); The transmission assembly (4) is driven to drive the driving assembly (3) to rotate between an open position and a closed position, and during the rotation process, the protrusion (421) on the rotating gear (42) rotates with the rotating gear (42) and slides in the sliding groove (411). When the shutter blade (2) is located at the open position, the protrusion (421) cooperates with the sliding groove (411) to limit the rebound of the paddle (41) to form a self-locking state.

2. A self-locking shutter structure according to claim 1, characterized in that: When the shutter blade (2) is in the open position, the angle α between the protrusion (421) and the sliding groove (411) is greater than 90 degrees, wherein the angle α is formed by the radial direction of the protrusion (421) and the lower groove edge of the sliding groove (411), and the radial direction of the protrusion (421) is the direction of the reaction force F generated when the protrusion (421) is subjected to the impact force T of the sliding groove (411) when the paddle (41) rebounds.

3. The self-locking shutter structure according to claim 1, characterized in that: The driving assembly (3) comprises a solenoid valve (31), a driving gear (32) extending inside the solenoid valve (31), and the driving gear (32) meshing with the rotating gear (42).

4. The self-locking shutter structure according to claim 3, characterized in that: The shutter body (1) further comprises a fixing seat (11), a fixing cover (12) clamped to one side of the fixing seat (11), and a partition plate (13) arranged between the fixing seat (11) and the fixing cover (12); the solenoid valve (31), the rotating gear (42) and the paddle (41) are all arranged on the other side of the fixing seat (11); and the shutter blade (2) is movably arranged between the fixing seat (11) and the partition plate (13).

5. The self-locking shutter structure according to claim 4, characterized in that: One end of the paddle (41) away from the rotating gear (42) passes through the fixing seat (11) and is movably connected to the shutter blade (2), so that the paddle (41) moves under the drive of the electromagnetic valve (31) and the shutter blade (2) is opened or closed.

6. The self-locking shutter structure according to claim 5, characterized in that: A movable column (412) is protruding from one end of the paddle (41) movably connected to the shutter blade (2); a movable hole (112) is provided on the fixing seat (11) at a position corresponding to the axial direction of the movable column (412); when the paddle (41) swings, the movable column (412) passes through the movable hole (112) to drive the shutter blade (2) to open or close.

7. The self-locking shutter structure according to claim 4, characterized in that: A mounting portion (113) is protrudingly provided on the fixing seat (11) around the transmission assembly (4), and a gear box cover (14) is covered on the mounting portion (113).

8. The self-locking shutter structure according to claim 4, characterized in that: A clamping groove (114) is provided at the inner peripheral position of the surface where the fixing seat (11) and the partition plate (13) are in contact, and a buckle (131) is provided at the outer peripheral position of the partition plate (13); the partition plate (13) passes through the clamping groove (114) through the buckle (131) and is clamped onto the fixing seat (11).

9. The self-locking shutter structure according to claim 4, characterized in that: A snap-fitting hole (115) is provided at a peripheral position of the fixing seat (11), and a snap-fitting hook (121) is provided at a peripheral position of the fixing cover (12); the fixing cover (12) passes through the snap-fitting hole (115) via the snap-fitting hook (121) and is snap-fitted to the fixing seat (11).

10. The self-locking shutter structure according to claim 4, characterized in that: The solenoid valve (31) is also provided with a wire (33) electrically connected to an external power source, and the wire (33) is arranged in close contact with the fixing seat (11).

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