Unlocking mechanism for a film and television accessory

Abstract

This utility model discloses an unlocking mechanism for a video accessory, including a connecting seat with a first limiting member and a first latch; a locking seat, which is in an unlocked state when rotated to a position where the second latch aligns with the first latch, and in a locked state when rotated to a position where the second latch is misaligned with the first latch; a limiting component, including a second limiting member connected to the locking seat; and an unlocking member movably connected to the locking seat. When the locking seat is in the unlocked state, the unlocking member moves away from the second limiting member along a first direction and abuts against the first limiting member; when the locking seat is in the locked state, the unlocking member moves closer to the second limiting member along a first direction and blocks the first limiting member along a second direction; and an elastic member, which provides an elastic force to cause the unlocking member to abut against the first limiting member. The locking seat can only change its state under specific conditions where the unlocking member moves along the first direction, reducing the probability of mis-locking.

Description

Technical Field

[0001] This utility model relates to the field of film and television equipment technology, and in particular to an unlocking mechanism for film and television accessories. Background Technology

[0002] In film and television shooting, lighting equipment often needs to be used in conjunction with accessories such as light covers, softboxes, and grilles to create different atmospheres, highlight the subject, and assist the camera in its creative process. Traditionally, when connecting lighting equipment to accessories, a connecting base is typically installed on the lighting body, with a rotatable locking mechanism on it. By rotating the locking mechanism, the locking part of the mechanism can align or overlap with the connecting part of the connecting base, thus unlocking or locking the accessories. However, in actual use, this locking mechanism is exposed and susceptible to external impacts, leading to mis-locking, loosening of the accessories, affecting the normal operation of the equipment, and causing inconvenience to the user. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides an unlocking mechanism for film and television accessories. The locking structure used to lock the film and television accessories requires an unlocking component to unlock, thereby reducing the probability of accidental operation.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] An unlocking mechanism for film and television accessories includes:

[0006] Connecting seat, the connecting seat is provided with a first limiting member and a first bayonet;

[0007] A locking seat is rotatably mounted on the connecting seat, and the locking seat is provided with a second latch; the locking seat is in the unlocked state when the second latch is aligned with the first latch, and in the locked state when the second latch is misaligned with the first latch.

[0008] Limiting component, the limiting component includes:

[0009] The second limiting member is connected to the locking seat.

[0010] The unlocking component is movably connected to the second limiting component and can move along a first direction; when the locking seat is in an unlocked state, the unlocking component moves away from the second limiting component along the first direction and abuts against the first limiting component; when the locking seat is in a locked state, the unlocking component moves closer to the second limiting component along the first direction and blocks the first limiting component along the second direction.

[0011] An elastic element is connected to the unlocking element and provides an elastic force to cause the unlocking element to abut against the first limiting element.

[0012] Furthermore, the second limiting member is provided with a limiting groove; the unlocking member includes a force-receiving end and a locking end, the locking end being inserted into the limiting groove along the first direction;

[0013] The locking end includes a first limiting surface; when the locking seat is in the unlocked state, the first limiting surface moves away from the second limiting member along the first direction and abuts against the first limiting member.

[0014] Furthermore, the second limiting member is provided with a limiting groove; the unlocking member includes a force-receiving end and a locking end, the locking end passing through the limiting groove;

[0015] The force-bearing end is provided with a second limiting surface. When the locking seat is in the unlocked state, the second limiting surface moves away from the second limiting member along the first direction and abuts against the first limiting member.

[0016] Furthermore, the second limiting member is also provided with a limiting notch, which is located on the side of the second limiting member closer to the first limiting member and communicates with the limiting groove.

[0017] Furthermore, the limiting component also includes a connecting rod that connects the second limiting member and the unlocking member.

[0018] Furthermore, the unlocking member has a first connecting groove, the second limiting member has a second connecting groove, and the connecting rod has a first end and a second end. The first end is fixedly connected to the second connecting groove, and the second end is movably connected to the unlocking member through the elastic member.

[0019] Furthermore, the first connecting groove includes a first groove segment and a second groove segment, the second groove segment is in communication with the first groove segment, and the inner diameter of the second groove segment is larger than the inner diameter of the first groove segment;

[0020] The second end is provided with a limiting ring, and the elastic element is disposed in the second groove and fixedly connected to the limiting ring.

[0021] Furthermore, the outer periphery of the unlocking member is provided with a gripping portion, which protrudes from the end face of the unlocking member.

[0022] Furthermore, the first limiting member includes a positioning block and a limiting baffle. The positioning block is disposed on the connecting seat, and the limiting baffle is connected to the positioning block and extends toward one end of the unlocking member.

[0023] Furthermore, the locking seat is provided with a handle, which is disposed opposite to the limiting component and extends out of the locking seat.

[0024] In summary, the film and television accessory unlocking mechanism provided by this utility model has the following technical effects:

[0025] When the locking seat is rotated to the unlocked state where the first and second latches are aligned, the unlocking member can move away from the second limiting member along the first direction. At this time, the unlocking member, under the action of the elastic member, abuts against the first limiting member, keeping the locking seat in the unlocked state. When the locking seat needs to switch to the locked state, the unlocking member moves away from the second limiting member again to release the first limiting member. Subsequently, the unlocking member, under the action of the elastic member, connects with the second limiting member and blocks the first limiting member in the second direction, keeping the locking seat in the locked state.

[0026] Therefore, since the locking seat can only switch from the locked state to the unlocked state, or from the unlocked state to the locked state, under the specific condition that the unlocking element moves along the first direction, the probability of the locking seat state changing due to misoperation is reduced, thereby improving the reliability and safety of the locking seat during use. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0030] Figure 3 This is a structural cross-sectional view of the present invention;

[0031] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0032] Figure 5 This is an exploded view of the limiting component in this utility model.

[0033] Explanation of key figure labels:

[0034] 10. Connecting seat; 11. First limiting component; 111. Positioning block; 112. Limiting baffle; 12. First bayonet; 20. Locking seat; 21. Second bayonet; 22. Handle; 30. Limiting assembly; 31. Second limiting component; 311. Limiting notch; 312. Limiting groove; 313. Second connecting groove; 32. Unlocking component; 321. Force-bearing end; 3211. Second limiting surface; 322. Locking end; 3221. First limiting surface; 323. First connecting groove; 3231. First groove segment; 3232. Second groove segment; 324. Grip part; 33. Elastic component; 34. Connecting rod; 341. First end; 342. Second end; 343. Limiting ring. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0037] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0038] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0039] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0040] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0041] Example 1,

[0042] Please see Figures 1 to 5 This application provides an unlocking mechanism for a film and television accessory, including a connecting seat 10, a locking seat 20, and a limiting component 30. The connecting seat 10 is provided with a first limiting component 11 and a first latch 12. The locking seat 20 is rotatably mounted on the connecting seat 10 and is provided with a second latch 21. The locking seat 20 is in an unlocked state when the second latch 21 and the first latch 12 are aligned and engaged, and in a locked state when the second latch 21 and the first latch 12 are misaligned and separated.

[0043] Additionally, the limiting component 30 includes a second limiting member 31, an unlocking member 32, and an elastic member 33. The second limiting member 31 is connected to the locking seat 20, and the unlocking member 32 is movably connected to the second limiting member 31 and can move along a first direction. When the locking seat 20 is in the unlocked state, the unlocking member 32 moves away from the second limiting member 31 along the first direction and abuts against the first limiting member 11. When the locking seat 20 is in the locked state, the unlocking member 32 moves closer to the second limiting member 31 along the first direction and blocks the first limiting member 11 along the second direction. The elastic member 33 is connected to the unlocking member 32 and provides an elastic force so that the unlocking member 32 abuts against the first limiting member 11.

[0044] Based on the above structure, such as Figure 1 As shown, taking the length direction of the unlocking member 32 as the first direction and the circumferential direction of the locking seat 20 as the second direction, the unlocking mechanism of this video accessory can be explained by the user rotating the locking seat 20 when the video accessory needs to be unlocked. The limiting component 30 rotates synchronously with the locking seat 20. When the limiting component 30 rotates to be close to the first limiting member 11, the user can apply an external force to the unlocking member 32, forcing the unlocking member 32 to overcome the elastic force of the elastic member 33 and move away from the second limiting member 31 along the first direction.

[0045] When the unlocking member 32 moves away from the second limiting member 31, the end face of the unlocking member 32 and the end face of the second limiting member 31 can form a gap that allows the first limiting member 11 to pass through. After the first limiting member 11 is inserted into the gap, the user stops applying external force, and the unlocking member 32 is reset under the action of the elastic member 33 and abuts against the first limiting member 11, clamping the first limiting member 11 between the end face of the second limiting member 31 and the unlocking member 32. The first limiting member 11 is locked by bidirectional compression. At this time, the second latch 21 on the locking seat 20 can be rotated to align with the first latch 12, so that the locking seat 20 is in the unlocked state. In this state, the elastic force of the elastic member 33 causes the unlocking member 32 to always abut against the first limiting member 11 and is not easy to loosen, so that the locking seat 20 is stably kept in the unlocked state.

[0046] In this way, users can easily remove and replace the audio-visual accessories on the locking seat 20. Throughout the entire operation, because the first limiting member 11 is always under the locking constraint of the unlocking member 32, the possibility of the locking seat 20 changing its state due to accidental contact is significantly reduced, thus improving the reliability and safety of the locking seat 20 during use.

[0047] Similarly, when it is necessary to switch the locking seat 20 to the locked state, the user applies external force to the unlocking member 32 again, causing the unlocking member 32 to move away from the second limiting member 31 in the first direction until the first limiting member 11 is released. Then, the locking seat moves away from the first limiting member 11 in the second direction until the second latch 21 and the first latch 12 are misaligned and separated, thereby locking the locking seat 20. After that, when the external force is stopped, the unlocking member 32 moves closer to the second limiting member 31 again under the action of the elastic member 33 until it connects with the second limiting member 31.

[0048] When the unlocking member 32 is connected to the second limiting member 31, there is no longer a gap between the unlocking member 32 and the second limiting member 31 that allows the first limiting member 11 to extend into. Thus, even if the locking seat 20 is accidentally rotated by an external force, causing the second limiting member 31 and the unlocking member 32 to move closer to the first limiting member 11 in the second direction, the unlocking member 32 can block the first limiting member 11 in the second direction because there is no longer a gap or interval between the unlocking member 32 and the second limiting member 31. This prevents the locking seat 20 from rotating further and ensures that the locking seat 20 remains firmly locked under the interference of an unexpected external force, effectively reducing the risk of accidental locking.

[0049] Therefore, the locking seat 20 can only switch from the locked state to the unlocked state, or from the unlocked state to the locked state, under the specific condition that the unlocking member 32 moves along the first direction. This reduces the probability of the locking seat 20 changing its state due to misoperation and improves the reliability and safety of the locking seat 20 during use.

[0050] It should be noted that, in specific implementation, a notch can be provided on the second limiting member 31 for the unlocking member 32 or the first limiting member 11 to pass through. When the locking seat 20 is in the locked state, the unlocking member 32 is inserted into the notch along the first direction under the elastic force of the elastic member 33, forming a blocking structure. In this way, even if the locking seat 20 is rotated by external force to the point where the limiting member 30 is close to the first limiting member 11, the first limiting member 11 cannot be engaged because the unlocking member 32 occupies the space of the notch. Thus, the first limiting member 11 is blocked in the second direction (that is, the circumferential direction of the locking seat 20), so that the locking seat 20 can stop rotating when it reaches the first limiting member 11, and cannot be rotated further to the point where the second latch 21 and the first latch 12 are aligned and engaged. This can effectively prevent the locking seat 20 from being mis-locked due to external force.

[0051] Similarly, when unlocking is required, an external force is applied to the unlocking member 32 to overcome the elastic force of the elastic member 33 and move away from the second limiting member 31 in the first direction. During this process, the unlocking member 32 can move away from the notch and release the space of the notch. Then, when the locking seat 20 rotates to the point where the limiting component 30 is close to the first limiting member 11, the first limiting member 11 can be smoothly inserted into the notch so that the locking seat 20 can be further rotated to the point where the second latch 21 and the first latch 12 are aligned and engaged, thereby achieving unlocking.

[0052] More specifically, in this embodiment, the elastic element 33 can be an existing spring, elastic sheet, or rubber column, etc., and the unlocking element 32 can be rod-shaped or block-shaped. During assembly, the elastic element 33 is sleeved on the outer periphery of the unlocking element 32 and then movably inserted into the second limiting element 31, so that the unlocking element 32 can move away from or towards the second limiting element 31 when subjected to force. Alternatively, both ends of the elastic element 33 can be connected to the unlocking element 32 and the second limiting element 31 respectively, achieving the same effect.

[0053] Example 2,

[0054] Furthermore, such as Figure 5 As shown, in this embodiment, the second limiting member 31 is provided with a limiting groove 312, and the unlocking member 32 includes a force-receiving end 321 and a locking end 322. The locking end 322 passes through the limiting groove 312 along the first direction and includes a first limiting surface 3221. When the locking seat 20 is in the unlocked state, the first limiting surface 3221 moves away from the second limiting member 31 along the first direction and abuts against the first limiting member 11.

[0055] Specifically, taking the end face of the locking end 322 furthest from the force-bearing end 321 as the first limiting surface 3221 as an example, during assembly, a limiting groove 312 is provided on the second limiting member 31 for the locking end 322 to extend into, providing an installation base for the locking end 322. When the locking end 322 moves along the first direction, the groove wall of the limiting groove 312 restricts its degree of freedom perpendicular to the direction of movement (such as lateral offset or rotation), forcing the locking end 322 to only move linearly along the axial direction of the groove (i.e., the first direction). This provides guidance for the locking end 322, allowing it to move only along the first direction to extend into or retract from the limiting groove 312.

[0056] Based on this, one end of the elastic member 33 abuts against the bottom of the limiting groove 312, and the other end is connected to the locking end 322 to ensure effective transmission of elastic force. When it is necessary to unlock the locking seat 20, an external force is applied to the force-bearing end 321, causing the locking end 322 to overcome the elastic force of the elastic member 33 and move away from the second limiting member 31 along the first direction. After the locking end 322 exits the limiting groove 312 a certain distance, a gap is formed between the first limiting surface 3221 and the end face of the second limiting member 31. At this time, the first limiting member 11 can be inserted into the gap along a path perpendicular to the first direction. Subsequently, the external force is removed, and the elastic member 33 pushes the locking end 322 to reset, so that the first limiting surface 3221 tightly abuts against the end face of the first limiting member 11. At this time, the first limiting member 11 is clamped between the first limiting surface 3221 and the end face of the second limiting member 31, and locking is achieved through bidirectional compression, so that the locking seat 20 is stably kept in the unlocked state.

[0057] When the locking seat 20 is in the locked state, the locking end 322 is always inserted into the limiting groove 312 and abuts against the end wall of the second limiting member 31 under the pre-tightening force of the elastic member 33. At this time, the first limiting surface 3221 and the second limiting member 31 are tightly fitted, and there is no gap for the first limiting member 11 to extend into. Thus, even if the locking seat 20 is impacted by an external force and moves towards the first limiting member 11 in the second direction, due to the obstruction of the unlocking member 32, the locking seat 20 cannot rotate further when it rotates to the point where the first limiting member 11 contacts it. That is, it cannot rotate to the state where the first latch 12 and the second latch 21 are aligned and engaged, and cannot be unlocked. This effectively reduces the occurrence of mis-locking caused by unexpected external forces.

[0058] It should be noted that, in this embodiment, when the elastic element 33 is connected to the locking end 322, a guide rod extending along the first direction can be provided at the bottom of the limiting groove 312. The elastic element 33 (e.g., a compression spring) is sleeved on the outer periphery of the guide rod. At the same time, the locking end 322 has a guide hole adapted to the guide rod, and the guide rod is movably inserted into the guide hole. Through the combined action of the linear constraint of the guide rod and the axial elastic force of the elastic element 33, the locking end 322 makes a stable linear movement along the first direction within the limiting groove 312.

[0059] Of course, the elastic element 33 can also be an existing elastic column structure. When the elastic element 33 adopts an elastic column (such as a rubber column) structure, the locking end 322 can achieve stable guidance in the following way: one end of the elastic column is fixedly connected to the bottom wall of the limiting groove 312, and the other end is connected to the bottom surface of the locking end 322. During the movement, the elastic column provides restoring force through its own axial elastic deformation, suppressing the radial displacement of the locking end 322, so that the locking end 322 makes a stable linear movement along the first direction.

[0060] Example 3,

[0061] Furthermore, such as Figure 5 As shown, the second limiting member 31 is provided with a limiting groove 312; the unlocking member 32 includes a force-receiving end 321 and a locking end 322, the locking end 322 passing through the limiting groove 312; the force-receiving end 321 is provided with a second limiting surface 3211, the second limiting surface 3211 moves away from the second limiting member 31 along the first direction and abuts against the first limiting member 11 when the locking seat 20 is in the unlocked state.

[0062] Specifically, in this embodiment, the outer diameter of the force-receiving end 321 is larger than the outer diameter of the locking end 322, and the end face of the force-receiving end 321 that abuts against the opening end wall of the limiting groove 312 forms a second limiting surface 3211 (e.g., Figure 5 When the locking end 322 passes through the limiting groove 312, the second limiting surface 3211 abuts against the end face of the second limiting member 31 (that is, the end wall at the opening of the limiting groove 312).

[0063] Based on this, one end of the elastic element 33 is fixedly connected to the limiting groove 312, and the other end of the elastic element 33 is connected to the force-receiving end 321. When it is necessary to unlock the locking seat 20, an external force is applied to the force-receiving end 321 in the first direction, causing the force-receiving end 321 to overcome the elastic force of the elastic element 33 and move away from the second limiting element 31 until a gap is formed between the second limiting surface 3211 and the end wall of the second limiting element 31. The first limiting element 11 can then be inserted into this gap in the second direction. Subsequently, the external force is removed, and the restoring force of the elastic element 33 pushes the force-receiving end 321 to reset, causing the second limiting surface 3211 to tightly abut against the end face of the first limiting element 11, thereby clamping the first limiting element 11 between the second limiting surface 3211 and the end face of the second limiting element 31. Locking is achieved through bidirectional compression, so that the locking seat 20 is stably kept in the unlocked state.

[0064] More specifically, because the outer diameter of the force-bearing end 321 is larger than the outer diameter of the locking end 322, after the locking end 322 passes through the limiting groove 312, the force-bearing end 321 can abut against the outer periphery of the limiting groove 312, reducing the risk of the locking end 322 accidentally coming out of the limiting groove 312.

[0065] Example 4,

[0066] Further, see Figures 1 to 5 The second limiting member 31 is also provided with a limiting notch 311, which is located on the side of the second limiting member 31 that is close to the first limiting member 11 and is connected to the limiting groove 312.

[0067] Specifically, during assembly, one end of the locking end 322 passes through the limiting groove 312 and extends into the limiting notch 311, while the other end of the locking end 322 is connected to the force-receiving end 321. One end of the elastic element 33 can be inserted into the limiting groove 312, and the other end is connected to the force-receiving end 321. When it is necessary to unlock the locking seat 20, the operator applies external force to the force-receiving end 321. Under the action of the force, the elastic element 33 deforms, changing from the initial natural state to the stretched state. As the elastic element 33 is stretched, the force-receiving end 321 moves away from the second limiting element 31 along the first direction, thereby driving the locking end 322 to move away from the limiting groove 312 synchronously, gradually moving it away from the limiting notch 311. When the locking end 322 completely exits the limiting notch 311, the first limiting element 11 obtains enough space and can smoothly extend into the limiting notch 311.

[0068] Once the first limiting member 11 successfully extends into the limiting notch 311, the external force applied to the force-bearing end 321 ceases. At this time, due to its own elastic properties, the elastic member 33 recovers its deformation, gradually returning from a stretched state to its initial state. During the process of the elastic member 33 recovering its deformation, the generated elastic force drives the force-bearing end 321 to move closer to the second limiting member 31 along the first direction, thereby causing the locking end 322 to extend into the limiting notch 311 again and tightly abut against the outer periphery of the first limiting member 11. Through friction and compression, the first limiting member 11 is locked, keeping the locking seat 20 in the unlocked state and providing reliable protection for subsequent operations.

[0069] When the locking seat 20 is in the locked state, the preload of the elastic element 33 keeps the locking end 322 within the limiting notch 311, so that the effective space within the limiting notch 311 is completely occupied by the locking end 322, and the first limiting element 11 cannot obtain an insertion gap. In this state, even if the locking seat 20 is displaced towards the first limiting element 11 in the second direction due to external disturbance, the first limiting element 11 still cannot cross the locking end 322 into the limiting notch 311 to complete the unlocking due to the obstruction of the locking end 322 within the limiting notch 311, thereby effectively reducing the mis-locking caused by unexpected external forces.

[0070] Example 5,

[0071] Furthermore, based on Embodiments 1 to 4, the limiting component 30 also includes a connecting rod 34, which connects the second limiting member 31 and the unlocking member 32.

[0072] Specifically, the connecting rod 34 can extend along the first direction. One end of the connecting rod 34 can be movably connected to the second limiting member 31 through the elastic member 33, for example, by the elastic member 33 passing through the limiting groove 312. The other end of the connecting rod 34 is fixedly connected to the unlocking member 32. When the unlocking member 32 is subjected to force, it can move away from the second limiting member 31 along the axis of the connecting rod 34 (i.e., the first direction) so as to stably connect the unlocking member 32 and the second limiting member 31 through the connecting rod 34, providing guidance for the movement of the unlocking member 32, so that the unlocking member 32 can maintain stable linear movement in the first direction.

[0073] Of course, one end of the connecting rod 34 can also extend into the limiting groove 312 and be fixedly connected to the second limiting member 31. The other end of the connecting rod 34 is movably connected to the force-receiving end 321 or locking end 322 of the unlocking member 32 through the elastic member 33. The connecting rod 34 provides a guiding function so that the unlocking member 32 can maintain stable linear movement in the first direction.

[0074] Preferably, in this embodiment, the unlocking member 32 has a first connecting groove 323, the second limiting member 31 has a second connecting groove 313, and the connecting rod 34 has a first end 341 and a second end 342. The first end 341 is fixedly connected to the second connecting groove 313, and the second end 342 is movably connected to the unlocking member 32 through the elastic member 33.

[0075] Based on this structure, when the limiting component 30 is in the initial state, that is, when the unlocking component 32 and the second limiting component 31 are in a close fit, the first end 341 of the connecting rod 34 is fixedly connected in the second connecting groove 313, and the second end 342 is movably inserted in the first connecting groove 323 through the elastic component 33, so that the second limiting component 31 and the unlocking component 32 are stably connected.

[0076] When the locking seat 20 needs to be unlocked, an external force is applied to the unlocking member 32, causing it to overcome the elastic force of the elastic member 33 and move away from the second limiting member 31 along the first direction. Since the second end 342 of the connecting rod 34 is movably inserted into the first connecting groove 323 and connected to the elastic member 33, the movement of the unlocking member 32 can compress the elastic member 33, increasing the elastic force. As the unlocking member 32 moves, it exits from the limiting groove 312 or the limiting notch 311, creating conditions for the insertion of the first limiting member 11. When the first limiting member 11 can smoothly extend into the gap between the unlocking member 32 and the second limiting member 31 or into the limiting notch 311, the unlocking operation is completed.

[0077] Subsequently, the external force applied to the unlocking member 32 is removed. At this time, the elastic member 33 begins to release its elastic potential energy, and its elastic force drives the unlocking member 32 to move towards the second limiting member 31 along the axial direction of the connecting rod 34 (i.e., the first direction). The unlocking member 32 abuts against the first limiting member 11, locking the first limiting member 11, thereby keeping the locking seat 20 in the unlocked state. Throughout the locking process, the connection between the unlocking member 32 and the second limiting member 31 is made more stable by the connecting rod 34. Furthermore, due to the constraint of the first connecting groove 323, the unlocking member 32 moves in a predetermined direction (i.e., the axial direction of the connecting rod 34), improving the accuracy of the movement of the unlocking member 32.

[0078] Furthermore, the first connecting groove 323 includes a first groove segment 3231 and a second groove segment 3232, the second groove segment 3232 is in communication with the first groove segment 3231, and the inner diameter of the second groove segment 3232 is larger than the inner diameter of the first groove segment 3231; the second end 342 is provided with a limiting ring 343, and the elastic member 33 is disposed in the second groove segment 3232 and fixedly connected to the limiting ring 343.

[0079] Based on the above structure, the outer diameter of the limiting ring 343 can match the inner diameter of the second groove segment 3232, that is, the outer diameter of the limiting ring 343 is larger than the inner diameter of the first groove segment 3231. Thus, when the unlocking member 32 moves under the action of the elastic member 33, the limiting ring 343 can move freely within the second groove segment 3232. When the unlocking member 32 moves to a certain position, the limiting ring 343 can abut against the end wall of the first groove segment 3231, restricting the further movement of the unlocking member 32 and preventing the unlocking member 32 from coming off the connecting rod 34, thereby improving the integrity and stability of the entire limiting assembly 30 structure.

[0080] Furthermore, due to the larger inner diameter of the second groove section 3232, sufficient installation space is provided for the elastic element 33. The elastic element 33 can freely expand and contract within the second groove section 3232, avoiding obstruction of elastic deformation due to insufficient space and ensuring its normal elastic force function. At the same time, the inner wall of the second groove section 3232 can provide a certain degree of protection for the elastic element 33, reducing the probability of damage such as collisions and scratches during operation and extending its service life.

[0081] Furthermore, the outer periphery of the unlocking member 32 is provided with a gripping part 324, which protrudes from the end face of the unlocking member 32. The gripping part 324 provides the user with a part that is easy to grip and apply force. When it is necessary to operate the unlocking member 32 to achieve unlocking or other related actions, the user can more easily grip the gripping part 324 and apply external force to drive the unlocking member 32 to move.

[0082] It should be noted that the gripping part 324 in this embodiment can be a block-shaped or columnar structure disposed on the unlocking member 32.

[0083] Furthermore, the first limiting member 11 includes a positioning block 111 and a limiting baffle 112. The positioning block 111 is disposed on the connecting seat 10, and the limiting baffle 112 is connected to the positioning block 111 and extends toward one end of the unlocking member 32.

[0084] Based on this, the positioning block 111 is connected to the connecting seat 10. When the locking seat 20 is in the locked state, the positioning block 111 and the limiting baffle 112 work together. Even if the locking seat 20 rotates to the first limiting member 11 due to misoperation, the presence of the positioning block 111 and the limiting baffle 112 can prevent the locking seat 20 from rotating further, thereby reducing the probability that the locking seat 20 will switch to the locked state due to misoperation.

[0085] Furthermore, the outer diameter of the positioning block 111 is larger than the outer diameter of the limiting baffle 112. Thus, when the limiting baffle 112 extends into the limiting notch 311 or the gap between the unlocking member 32 and the second limiting member 31, the positioning block 111 can abut against the end wall of the unlocking member 32 and the second limiting member 31 in the second direction, which plays a further limiting role and prevents the limiting baffle 112 from extending too far into the limiting notch 311 and disengaging from the limiting notch 311, or from extending too far into the gap between the unlocking member 32 and the second limiting member 31 and coming out. By abutting against the outer peripheral wall of the unlocking member 32 and the second limiting member 31, the movement range of the locking seat 20 in the unlocked state is limited, so that the locking seat 20 is stably kept in the unlocked state, avoiding accidental unlocking or insecure locking.

[0086] In addition, the locking seat 20 is provided with a handle 22, which is disposed opposite to the limiting component 30 and extends out of the locking seat 20. The handle 22 provides the user with a dedicated gripping part, making it convenient for the user to rotate the locking seat 20.

[0087] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An unlocking mechanism for a film and television accessory, characterized in that, include: Connecting seat (10), the connecting seat (10) is provided with a first limiting member (11) and a first bayonet (12); A locking seat (20) is rotatably mounted on the connecting seat (10). The locking seat (20) is provided with a second latch (21). The locking seat (20) is in an unlocked state when the second latch (21) is aligned with the first latch (12), and in a locked state when the second latch (21) is misaligned with the first latch (12). A limiting component (30), the limiting component (30) comprising: The second limiting member (31) is connected to the locking seat (20). The unlocking member (32) is movably connected to the second limiting member (31) and can move along a first direction; when the locking seat (20) is in the unlocked state, the unlocking member (32) moves away from the second limiting member (31) along the first direction and abuts against the first limiting member (11); when the locking seat (20) is in the locked state, the unlocking member (32) moves closer to the second limiting member (31) along the first direction and blocks the first limiting member (11) along the second direction. An elastic element (33) is connected to the unlocking element (32) and provides an elastic force to cause the unlocking element (32) to abut against the first limiting element (11).

2. The unlocking mechanism for film and television accessories as described in claim 1, characterized in that, The second limiting member (31) is provided with a limiting groove (312); the unlocking member (32) includes a force-receiving end (321) and a locking end (322), the locking end (322) passing through the limiting groove (312) along the first direction; The locking end (322) includes a first limiting surface (3221); when the locking seat (20) is in the unlocked state, the first limiting surface (3221) moves away from the second limiting member (31) along the first direction and abuts against the first limiting member (11).

3. The unlocking mechanism for film and television accessories as described in claim 1, characterized in that, The second limiting member (31) is provided with a limiting groove (312); the unlocking member (32) includes a force-receiving end (321) and a locking end (322), the locking end (322) passing through the limiting groove (312); The force-receiving end (321) is provided with a second limiting surface (3211). When the locking seat (20) is in the unlocked state, the second limiting surface (3211) moves away from the second limiting member (31) along the first direction and abuts against the first limiting member (11).

4. The unlocking mechanism for film and television accessories as described in claim 2 or 3, characterized in that, The second limiting member (31) is also provided with a limiting notch (311), which is located on the side of the second limiting member (31) close to the first limiting member (11) and communicates with the limiting groove (312).

5. The unlocking mechanism for film and television accessories as described in claim 4, characterized in that, The limiting component (30) further includes a connecting rod (34) that connects the second limiting member (31) and the unlocking member (32).

6. The unlocking mechanism for film and television accessories as described in claim 5, characterized in that, The unlocking member (32) has a first connecting groove (323), the second limiting member (31) has a second connecting groove (313), the connecting rod (34) has a first end (341) and a second end (342), the first end (341) is fixedly connected to the second connecting groove (313), and the second end (342) is movably connected to the first connecting groove (323) through the elastic member (33).

7. The unlocking mechanism for film and television accessories as described in claim 6, characterized in that, The first connecting groove (323) includes a first groove segment (3231) and a second groove segment (3232), the second groove segment (3232) is in communication with the first groove segment (3231), and the inner diameter of the second groove segment (3232) is larger than the inner diameter of the first groove segment (3231); The second end (342) is provided with a limiting ring (343), and the elastic element (33) is disposed in the second groove (3232) and fixedly connected to the limiting ring (343).

8. The unlocking mechanism for film and television accessories as described in claim 1, characterized in that, The unlocking member (32) has a gripping part (324) on its outer periphery, and the gripping part (324) protrudes from the end face of the unlocking member (32).

9. The unlocking mechanism for film and television accessories as described in claim 1, characterized in that, The first limiting member (11) includes a positioning block (111) and a limiting baffle (112). The positioning block (111) is disposed on the connecting seat (10), and the limiting baffle (112) is connected to the positioning block (111) and extends toward one end of the unlocking member (32).

10. The unlocking mechanism for film and television accessories as described in claim 1, characterized in that, The locking seat (20) is provided with a handle (22), which is disposed opposite to the limiting component (30) and extends out of the locking seat (20).

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